/* ==========================================
   MUSIC MASTER PRO HUB - MAIN STYLES
   Design System & Core Components
   ========================================== */

/* Warning Modal Styles */
.warning-modal {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.8);
    backdrop-filter: blur(5px);
    z-index: 10000;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 1rem;
    opacity: 1;
    transition: opacity 0.3s ease-in-out;
}

.warning-modal.hidden {
    opacity: 0;
    pointer-events: none;
}

.warning-modal-content {
    background: #fff;
    border-radius: 16px;
    max-width: 500px;
    width: 100%;
    max-height: 80vh;
    overflow-y: auto;
    position: relative;
    transform: scale(1);
    transition: transform 0.3s ease-in-out;
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.3);
}

.warning-modal.hidden .warning-modal-content {
    transform: scale(0.9);
}

.warning-header {
    background: linear-gradient(135deg, #ff6b35, #e55a2b);
    color: white;
    padding: 1.5rem;
    border-radius: 16px 16px 0 0;
    text-align: center;
    position: relative;
}

.warning-icon {
    font-size: 2.5rem;
    margin-bottom: 0.5rem;
    animation: pulse 2s infinite;
}

@keyframes pulse {
    0%, 100% { transform: scale(1); }
    50% { transform: scale(1.05); }
}

.warning-header h2 {
    margin: 0;
    font-size: 1.5rem;
    font-weight: 600;
}

.warning-close {
    position: absolute;
    top: 1rem;
    right: 1rem;
    background: none;
    border: none;
    color: white;
    font-size: 1.2rem;
    cursor: pointer;
    padding: 0.5rem;
    border-radius: 50%;
    width: 2.5rem;
    height: 2.5rem;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.3s ease;
    opacity: 0.8;
}

.warning-close:hover {
    opacity: 1;
    background: rgba(255, 255, 255, 0.2);
    transform: scale(1.1);
}

.warning-body {
    padding: 2rem;
    color: #1a1a1a;
    line-height: 1.6;
}

.warning-body p {
    margin: 0 0 1rem 0;
    color: #2d2d2d;
}

.warning-body p:last-child {
    margin-bottom: 0;
}

.warning-body ul {
    margin: 1rem 0;
    padding-left: 1.5rem;
    color: #2d2d2d;
}

.warning-body li {
    margin-bottom: 0.5rem;
    color: #404040;
}

.warning-body strong {
    color: #1a1a1a;
    font-weight: 700;
}

.warning-footer {
    padding: 1.5rem 2rem;
    border-top: 1px solid #e0e0e0;
    display: flex;
    gap: 1rem;
    flex-direction: column;
}

.warning-btn {
    padding: 0.75rem 1.5rem;
    border: none;
    border-radius: 8px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    font-size: 0.95rem;
}

.warning-btn.primary {
    background: linear-gradient(135deg, #ff6b35, #e55a2b);
    color: white;
}

.warning-btn.primary:hover {
    background: linear-gradient(135deg, #e55a2b, #cc4a22);
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(255, 107, 53, 0.3);
}

.warning-btn.secondary {
    background: #f8f9fa;
    color: #666;
    border: 2px solid #e0e0e0;
}

.warning-btn.secondary:hover {
    background: #e9ecef;
    border-color: #c0c0c0;
    transform: translateY(-2px);
}

@media (min-width: 768px) {
    .warning-footer {
        flex-direction: row;
        justify-content: space-between;
    }
    
    .warning-btn {
        flex: 1;
    }
}

/* CSS Variables */
:root {
    /* Colors */
    --primary-color: #ff6b35;
    --primary-dark: #e55a2b;
    --primary-light: #ff8c66;
    --secondary-color: #2c3e50;
    --accent-color: #3498db;
    
    /* Grays */
    --gray-900: #1a1a1a;
    --gray-800: #2d2d2d;
    --gray-700: #404040;
    --gray-600: #666666;
    --gray-500: #888888;
    --gray-400: #a0a0a0;
    --gray-300: #c0c0c0;
    --gray-200: #e0e0e0;
    --gray-100: #f5f5f5;
    --gray-50: #fafafa;
    
    /* Background */
    --bg-primary: #ffffff;
    --bg-secondary: #f8f9fa;
    --bg-dark: var(--gray-900);
    
    /* Text */
    --text-primary: var(--gray-900);
    --text-secondary: var(--gray-600);
    --text-light: var(--gray-400);
    --text-white: #ffffff;
    
    /* Shadows */
    --shadow-sm: 0 2px 4px rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 8px 24px rgba(0, 0, 0, 0.15);
    --shadow-xl: 0 16px 48px rgba(0, 0, 0, 0.2);
    
    /* Spacing */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 1.5rem;
    --spacing-lg: 2rem;
    --spacing-xl: 3rem;
    --spacing-2xl: 4rem;
    --spacing-3xl: 6rem;
    
    /* Typography */
    --font-family: 'Exo 2', 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    --font-size-xs: 0.75rem;
    --font-size-sm: 0.875rem;
    --font-size-base: 1rem;
    --font-size-lg: 1.125rem;
    --font-size-xl: 1.25rem;
    --font-size-2xl: 1.5rem;
    --font-size-3xl: 2rem;
    --font-size-4xl: 2.5rem;
    --font-size-5xl: 3rem;
    
    /* Border Radius */
    --radius-sm: 0.375rem;
    --radius-md: 0.5rem;
    --radius-lg: 0.75rem;
    --radius-xl: 1rem;
    --radius-2xl: 1.5rem;
    
    /* Transitions */
    --transition-fast: 0.15s ease;
    --transition-normal: 0.2s ease;
    --transition-slow: 0.3s ease;
    
    /* Z-index */
    --z-dropdown: 1000;
    --z-modal: 1050;
    --z-tooltip: 1100;
}

/* Reset & Base Styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
    font-size: 16px;
}

body {
    font-family: var(--font-family);
    font-size: var(--font-size-base);
    line-height: 1.6;
    color: var(--text-primary);
    background-color: var(--bg-primary);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
    font-weight: 600;
    line-height: 1.2;
    margin-bottom: var(--spacing-sm);
}

h1 { font-size: var(--font-size-4xl); }
h2 { font-size: var(--font-size-3xl); }
h3 { font-size: var(--font-size-2xl); }
h4 { font-size: var(--font-size-xl); }
h5 { font-size: var(--font-size-lg); }
h6 { font-size: var(--font-size-base); }

p {
    margin-bottom: var(--spacing-md);
    color: var(--text-secondary);
}

a {
    color: var(--primary-color);
    text-decoration: none;
    transition: color var(--transition-normal);
}

a:hover {
    color: var(--primary-dark);
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-xs);
    padding: 0.75rem 1.5rem;
    border: none;
    border-radius: var(--radius-lg);
    font-size: var(--font-size-base);
    font-weight: 500;
    text-decoration: none;
    cursor: pointer;
    transition: all var(--transition-normal);
    user-select: none;
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary-color), var(--primary-dark));
    color: var(--text-white);
    box-shadow: var(--shadow-md);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
    color: var(--text-white);
}

.btn-secondary {
    background: var(--bg-secondary);
    color: var(--text-primary);
    border: 2px solid var(--gray-200);
}

.btn-secondary:hover {
    background: var(--gray-100);
    border-color: var(--gray-300);
    color: var(--text-primary);
}

.btn-outline {
    background: transparent;
    color: var(--primary-color);
    border: 2px solid var(--primary-color);
}

.btn-outline:hover {
    background: var(--primary-color);
    color: var(--text-white);
}

/* Navigation */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background: rgba(45, 52, 62, 0.95);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    z-index: var(--z-dropdown);
    transition: all var(--transition-normal);
    transform: translateY(0);
}

.navbar.navbar-hidden {
    transform: translateY(-100%);
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-md);
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 70px;
}

.nav-brand {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
}

.nav-logo {
    height: 40px;
    width: auto;
    max-width: none;
    border-radius: var(--radius-md);
    object-fit: contain;
}

.nav-text h1 {
    font-size: var(--font-size-lg);
    font-weight: 700;
    margin: 0;
    color: #ffffff;
    text-shadow: 0 0 8px rgba(255, 255, 255, 0.2);
}

.nav-subtitle {
    font-size: var(--font-size-sm);
    color: rgba(255, 255, 255, 0.75);
    margin: 0;
}

.nav-links {
    display: flex;
    gap: var(--spacing-lg);
    align-items: center;
}

.nav-link {
    color: rgba(255, 255, 255, 0.85);
    font-weight: 500;
    transition: all var(--transition-normal);
}

.nav-link:hover {
    color: #ffffff;
    text-shadow: 0 0 5px rgba(255, 255, 255, 0.3);
}

/* Botón de café en el header */
.coffee-btn {
    background: linear-gradient(135deg, #8B4513, #D2691E);
    border: none;
    padding: 8px 16px;
    border-radius: 25px;
    color: white;
    font-weight: 600;
    font-size: 14px;
    cursor: pointer;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    gap: 8px;
    box-shadow: 0 4px 15px rgba(139, 69, 19, 0.3);
}

.coffee-btn:hover {
    background: linear-gradient(135deg, #A0522D, #DEB887);
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(139, 69, 19, 0.4);
}

.coffee-btn i {
    font-size: 16px;
}

.coffee-btn span {
    font-size: 13px;
}

.mobile-menu-btn {
    display: none;
    background: none;
    border: none;
    font-size: var(--font-size-xl);
    color: #ffffff;
    cursor: pointer;
}

.mobile-menu {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: var(--bg-primary);
    border-bottom: 1px solid var(--gray-200);
    padding: var(--spacing-md);
    flex-direction: column;
    gap: var(--spacing-sm);
}

.mobile-link {
    padding: var(--spacing-sm);
    color: var(--text-secondary);
    font-weight: 500;
    border-radius: var(--radius-md);
    transition: all var(--transition-normal);
}

.mobile-link:hover {
    background: var(--bg-secondary);
    color: var(--primary-color);
}

/* Hero Section */
.hero {
    padding: 120px 0 var(--spacing-3xl);
    background: linear-gradient(135deg, rgba(0, 0, 0, 0.45), rgba(26, 26, 46, 0.55));
    min-height: 100vh;
    display: flex;
    align-items: center;
    position: relative;
    overflow: hidden;
    transition: background 0.3s ease;
}

.hero.bg-loaded {
    background-attachment: fixed;
    background-size: cover;
    background-position: center;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: radial-gradient(circle at 50% 50%, rgba(255, 107, 53, 0.1) 0%, transparent 70%);
    pointer-events: none;
}

.hero-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-md);
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-3xl);
    align-items: center;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-xs);
    background: var(--primary-color);
    color: var(--text-white);
    padding: var(--spacing-xs) var(--spacing-md);
    border-radius: var(--radius-xl);
    font-size: var(--font-size-sm);
    font-weight: 500;
    margin-bottom: var(--spacing-md);
}

.hero-title {
    font-size: var(--font-size-5xl);
    font-weight: 700;
    margin-bottom: var(--spacing-md);
}

.neon-text {
    font-family: 'Orbitron', monospace;
    font-weight: 900;
    color: #ff6b35;
    text-shadow: 
        /* Contorno naranja clarito */
        -1px -1px 0 #ffab7a,
        1px -1px 0 #ffab7a,
        -1px 1px 0 #ffab7a,
        1px 1px 0 #ffab7a,
        /* Glow naranja */
        0 0 5px #ff6b35,
        0 0 10px #ff6b35,
        0 0 15px #ff6b35,
        0 0 20px #ff6b35,
        0 0 30px #ff6b35;
    animation: neonFlicker 2s infinite alternate;
    letter-spacing: 2px;
}

.hero-subtitle {
    display: block !important;
    font-size: var(--font-size-2xl);
    font-weight: 400;
    margin-top: var(--spacing-xs);
    line-height: 1.2;
}

.neon-subtitle {
    font-family: 'Exo 2', sans-serif;
    font-weight: 600;
    color: #ff8c42;
    text-shadow: 
        /* Contorno naranja clarito */
        -0.5px -0.5px 0 #ffcc99,
        0.5px -0.5px 0 #ffcc99,
        -0.5px 0.5px 0 #ffcc99,
        0.5px 0.5px 0 #ffcc99,
        /* Glow naranja */
        0 0 5px rgba(255, 140, 66, 0.8),
        0 0 10px rgba(255, 140, 66, 0.6),
        0 0 15px rgba(255, 140, 66, 0.4);
    animation: neonFlicker 2.5s infinite alternate;
    letter-spacing: 1px;
}

.hero-description {
    font-size: var(--font-size-lg);
    color: #e0e0e0;
    margin-bottom: var(--spacing-xl);
    line-height: 1.7;
}

.hero-actions {
    display: flex;
    gap: var(--spacing-md);
    flex-wrap: wrap;
}

/* Hero Visual */
.hero-visual {
    display: flex;
    justify-content: center;
    align-items: center;
}

.hero-glow-effect {
    position: relative;
    width: 400px;
    height: 400px;
    display: flex;
    justify-content: center;
    align-items: center;
}

.neon-circle {
    position: absolute;
    border: 2px solid #ff6b35;
    border-radius: 50%;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    animation: neonRotate 8s linear infinite;
    box-shadow: 
        0 0 20px rgba(255, 107, 53, 0.5),
        inset 0 0 20px rgba(255, 107, 53, 0.2);
}

.neon-circle {
    width: 300px;
    height: 300px;
}

.neon-circle.delay-1 {
    width: 250px;
    height: 250px;
    border-color: #3498db;
    animation-duration: 6s;
    animation-direction: reverse;
    box-shadow: 
        0 0 20px rgba(52, 152, 219, 0.5),
        inset 0 0 20px rgba(52, 152, 219, 0.2);
}

.neon-circle.delay-2 {
    width: 200px;
    height: 200px;
    border-color: #e74c3c;
    animation-duration: 4s;
    box-shadow: 
        0 0 20px rgba(231, 76, 60, 0.5),
        inset 0 0 20px rgba(231, 76, 60, 0.2);
}

.neon-circle.delay-3 {
    width: 150px;
    height: 150px;
    border-color: #9b59b6;
    animation-duration: 5s;
    animation-direction: reverse;
    box-shadow: 
        0 0 20px rgba(155, 89, 182, 0.5),
        inset 0 0 20px rgba(155, 89, 182, 0.2);
}

.neon-circle.delay-4 {
    width: 100px;
    height: 100px;
    border-color: #1abc9c;
    animation-duration: 3s;
    box-shadow: 
        0 0 20px rgba(26, 188, 156, 0.5),
        inset 0 0 20px rgba(26, 188, 156, 0.2);
}

/* App Gallery Styles - REMOVED, now only in modal */

/* Separador Neon */
.section-separator {
    padding: var(--spacing-2xl) 0;
    background: linear-gradient(180deg, transparent 0%, rgba(13, 13, 13, 0.5) 50%, transparent 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
}

.separator-container {
    max-width: 800px;
    width: 100%;
    padding: 0 var(--spacing-md);
}

.separator-line {
    position: relative;
    height: 2px;
    background: linear-gradient(90deg, 
        transparent 0%, 
        rgba(255, 136, 0, 0.3) 15%, 
        rgba(255, 136, 0, 0.6) 35%, 
        #FF8800 50%, 
        rgba(255, 136, 0, 0.6) 65%, 
        rgba(255, 136, 0, 0.3) 85%, 
        transparent 100%
    );
    border-radius: 2px;
    overflow: hidden;
    box-shadow: 
        0 0 8px #FF8800,
        0 0 16px rgba(255, 136, 0, 0.6),
        0 0 24px rgba(255, 136, 0, 0.3);
}

.separator-glow {
    position: absolute;
    top: -4px;
    left: 0;
    right: 0;
    height: 10px;
    background: linear-gradient(90deg, 
        transparent 0%, 
        rgba(255, 136, 0, 0.1) 15%, 
        rgba(255, 136, 0, 0.4) 35%, 
        rgba(255, 136, 0, 0.8) 50%, 
        rgba(255, 136, 0, 0.4) 65%, 
        rgba(255, 136, 0, 0.1) 85%, 
        transparent 100%
    );
    filter: blur(6px);
    animation: glow-pulse 2.5s ease-in-out infinite;
}

.separator-dots {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    display: flex;
    gap: 6px;
}

.dot-pulse {
    width: 5px;
    height: 5px;
    background: #FF8800;
    border-radius: 50%;
    box-shadow: 
        0 0 6px #FF8800,
        0 0 12px #FF8800,
        0 0 18px rgba(255, 136, 0, 0.6);
    animation: dot-pulse 2s ease-in-out infinite;
}

.dot-pulse.delay-1 {
    animation-delay: 0.4s;
}

.dot-pulse.delay-2 {
    animation-delay: 0.8s;
}

@keyframes glow-pulse {
    0%, 100% { 
        opacity: 0.8;
        filter: blur(6px);
    }
    50% { 
        opacity: 1;
        filter: blur(3px);
    }
}

@keyframes dot-pulse {
    0%, 100% { 
        transform: scale(1);
        opacity: 0.8;
        box-shadow: 
            0 0 6px #FF8800,
            0 0 12px #FF8800,
            0 0 18px rgba(255, 136, 0, 0.6);
    }
    50% { 
        transform: scale(1.6);
        opacity: 1;
        box-shadow: 
            0 0 10px #FF8800,
            0 0 20px #FF8800,
            0 0 30px rgba(255, 136, 0, 0.8),
            0 0 40px rgba(255, 136, 0, 0.4);
    }
}

/* Apps Section */
.apps {
    padding: var(--spacing-3xl) 0;
    background: linear-gradient(135deg, rgba(0, 0, 0, 0.45), rgba(26, 26, 46, 0.55));
    position: relative;
    overflow: hidden;
    transition: background 0.3s ease;
}

.apps.bg-loaded {
    background-attachment: fixed;
    background-size: cover;
    background-position: center;
}

.apps::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: radial-gradient(circle at 50% 50%, rgba(255, 107, 53, 0.1) 0%, transparent 70%);
    pointer-events: none;
    z-index: 1;
}

.apps-container {
    position: relative;
    z-index: 2;
}

.apps-container {
    position: relative;
    z-index: 2;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-md);
}

.section-header {
    text-align: center;
    margin-bottom: var(--spacing-3xl);
}

.section-title {
    font-size: var(--font-size-4xl);
    font-weight: 700;
    margin-bottom: var(--spacing-md);
    color: var(--text-primary);
    text-shadow: 2px 2px 8px rgba(0, 0, 0, 0.8);
}

.section-description {
    font-size: var(--font-size-lg);
    color: var(--text-secondary);
    max-width: 600px;
    margin: 0 auto;
    text-shadow: 1px 1px 4px rgba(0, 0, 0, 0.6);
}

/* Apps Grid - CLEAN VERSION */
.apps-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 30px;
    max-width: 1400px;
    margin: 0 auto;
    justify-items: center;
}

/* Media queries para responsive */
@media (max-width: 1200px) {
    .apps-grid {
        grid-template-columns: repeat(3, 1fr);
        max-width: 1000px;
    }
}

@media (max-width: 900px) {
    .apps-grid {
        grid-template-columns: repeat(2, 1fr);
        max-width: 700px;
    }
}

@media (max-width: 600px) {
    .apps-grid {
        grid-template-columns: 1fr;
        max-width: 350px;
    }
}

/* App Cards - CLEAN VERSION */
.app-card {
    width: 300px;
    min-height: 350px;
    background: rgba(20, 20, 20, 0.9);
    border: 2px solid rgba(255, 107, 53, 0.6);
    border-radius: 15px;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    text-align: center;
    cursor: pointer;
    transition: all 0.5s ease;
    box-shadow: 0 0 30px rgba(255, 107, 53, 0.4);
}

/* Progressions App Card */
.app-card[data-app="progressions"] {
    background: linear-gradient(135deg, rgba(255, 107, 53, 0.3) 0%, rgba(255, 107, 53, 0.1) 100%), 
                url('../assets/ChordGenerator.png');
    background-size: cover;
    background-position: center;
    background-blend-mode: overlay;
    border: 2px solid rgba(255, 107, 53, 0.6);
    box-shadow: 0 0 30px rgba(255, 107, 53, 0.4);
    position: relative;
    overflow: hidden;
}

.app-card[data-app="progressions"]:hover {
    transform: translateY(-10px);
    border-color: rgba(255, 107, 53, 1);
    box-shadow: 0 0 60px rgba(255, 107, 53, 1);
}

.app-card[data-app="progressions"]::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.4);
    transition: background 0.3s ease;
}

.app-card[data-app="progressions"]:hover::before {
    background: rgba(0, 0, 0, 0.2);
}

.app-card[data-app="progressions"] .app-card-content {
    position: relative;
    z-index: 2;
}

.app-card:hover {
    transform: translateY(-10px);
    border-color: rgba(255, 107, 53, 1);
    box-shadow: 0 0 60px rgba(255, 107, 53, 1);
}

.app-card.coming-soon {
    border-color: rgba(255, 107, 53, 0.6);
    box-shadow: 0 0 30px rgba(255, 107, 53, 0.4);
}

.app-card.coming-soon:hover {
    transform: translateY(-10px);
    border-color: rgba(255, 107, 53, 1);
    box-shadow: 0 0 60px rgba(255, 107, 53, 1);
}

/* Metrónomo App Card */
.app-card[data-app="metronome"] {
    background: linear-gradient(135deg, rgba(255, 107, 53, 0.3) 0%, rgba(255, 107, 53, 0.1) 100%), 
                url('../assets/CyberPunkMet.png');
    background-size: cover;
    background-position: center;
    background-blend-mode: overlay;
    border: 2px solid rgba(255, 107, 53, 0.6);
    box-shadow: 0 0 30px rgba(255, 107, 53, 0.4);
    position: relative;
    overflow: hidden;
}

.app-card[data-app="metronome"]:hover {
    transform: translateY(-10px);
    border-color: rgba(255, 107, 53, 1);
    box-shadow: 0 0 60px rgba(255, 107, 53, 1);
}

.app-card[data-app="metronome"]::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.4);
    transition: background 0.3s ease;
}

.app-card[data-app="metronome"]:hover::before {
    background: rgba(0, 0, 0, 0.2);
}

.app-card[data-app="metronome"] .app-card-content {
    position: relative;
    z-index: 2;
}

/* Music Master Keyboard App Card */
.app-card[data-app="keyboard"] {
    background: linear-gradient(135deg, rgba(255, 107, 53, 0.3) 0%, rgba(255, 107, 53, 0.1) 100%), 
                url('../assets/Keyboard.png');
    background-size: cover;
    background-position: center;
    background-blend-mode: overlay;
    border: 2px solid rgba(255, 107, 53, 0.6);
    box-shadow: 0 0 30px rgba(255, 107, 53, 0.4);
    position: relative;
    overflow: hidden;
}

.app-card[data-app="keyboard"]:hover {
    transform: translateY(-10px);
    border-color: rgba(255, 107, 53, 1);
    box-shadow: 0 0 60px rgba(255, 107, 53, 1);
}

.app-card[data-app="keyboard"]::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.4);
    transition: background 0.3s ease;
}

.app-card[data-app="keyboard"]:hover::before {
    background: rgba(0, 0, 0, 0.2);
}

.app-card[data-app="keyboard"] .app-card-content {
    position: relative;
    z-index: 2;
}

.app-card[data-app="keyboard"] .app-title {
    color: #ff6b35 !important;
    text-shadow: 
        0 0 10px rgba(255, 107, 53, 0.8),
        0 0 20px rgba(255, 107, 53, 0.6),
        0 0 30px rgba(255, 107, 53, 0.4);
}

.app-card[data-app="keyboard"] .status-badge.available {
    background: #ff6b35 !important;
    color: #fff !important;
    text-shadow: 0 0 10px rgba(255, 107, 53, 0.8) !important;
    box-shadow: 0 0 20px rgba(255, 107, 53, 0.4) !important;
}

/* Music Master Real Grand App Card */
.app-card[data-app="realgrand"] {
    background: linear-gradient(135deg, rgba(255, 107, 53, 0.3) 0%, rgba(255, 107, 53, 0.1) 100%), 
                url('../assets/Piano.png');
    background-size: cover;
    background-position: center;
    background-blend-mode: overlay;
    border: 2px solid rgba(255, 107, 53, 0.6);
    box-shadow: 0 0 30px rgba(255, 107, 53, 0.4);
    position: relative;
    overflow: hidden;
}

.app-card[data-app="realgrand"]:hover {
    transform: translateY(-10px);
    border-color: rgba(255, 107, 53, 1);
    box-shadow: 0 0 60px rgba(255, 107, 53, 1);
}

.app-card[data-app="realgrand"]::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.4);
    transition: background 0.3s ease;
}

.app-card[data-app="realgrand"]:hover::before {
    background: rgba(0, 0, 0, 0.2);
}

.app-card[data-app="realgrand"] .app-card-content {
    position: relative;
    z-index: 2;
}

.app-card[data-app="realgrand"] .app-title {
    color: #ff6b35 !important;
    text-shadow: 
        0 0 10px rgba(255, 107, 53, 0.8),
        0 0 20px rgba(255, 107, 53, 0.6),
        0 0 30px rgba(255, 107, 53, 0.4);
}

.app-card[data-app="realgrand"] .status-badge.available {
    background: #ff6b35 !important;
    color: #fff !important;
    text-shadow: 0 0 10px rgba(255, 107, 53, 0.8) !important;
    box-shadow: 0 0 20px rgba(255, 107, 53, 0.4) !important;
}

/* Music Master Theory App Card */
.app-card[data-app="theory"] {
    background: linear-gradient(135deg, rgba(255, 107, 53, 0.3) 0%, rgba(255, 107, 53, 0.1) 100%), 
                url('../assets/Theory.png');
    background-size: cover;
    background-position: center;
    background-blend-mode: overlay;
    border: 2px solid rgba(255, 107, 53, 0.6);
    box-shadow: 0 0 30px rgba(255, 107, 53, 0.4);
    position: relative;
    overflow: hidden;
}

.app-card[data-app="theory"]:hover {
    transform: translateY(-10px);
    border-color: rgba(255, 107, 53, 1);
    box-shadow: 0 0 60px rgba(255, 107, 53, 1);
}

.app-card[data-app="theory"]::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.4);
    transition: background 0.3s ease;
}

.app-card[data-app="theory"]:hover::before {
    background: rgba(0, 0, 0, 0.2);
}

.app-card[data-app="theory"] .app-card-content {
    position: relative;
    z-index: 2;
}

.app-card[data-app="theory"] .app-title {
    color: #ff6b35 !important;
    text-shadow: 
        0 0 10px rgba(255, 107, 53, 0.8),
        0 0 20px rgba(255, 107, 53, 0.6),
        0 0 30px rgba(255, 107, 53, 0.4);
}

.app-card[data-app="theory"] .status-badge.available {
    background: #ff6b35 !important;
    color: #fff !important;
    text-shadow: 0 0 10px rgba(255, 107, 53, 0.8) !important;
    box-shadow: 0 0 20px rgba(255, 107, 53, 0.4) !important;
}

/* Music Master Bass Game App Card */
.app-card[data-app="bassgame"] {
    background: linear-gradient(135deg, rgba(255, 107, 53, 0.3) 0%, rgba(255, 107, 53, 0.1) 100%), 
                url('../assets/SplashScreenBass.png');
    background-size: cover;
    background-position: center;
    background-blend-mode: overlay;
    border: 2px solid rgba(255, 107, 53, 0.6);
    box-shadow: 0 0 30px rgba(255, 107, 53, 0.4);
    position: relative;
    overflow: hidden;
}

.app-card[data-app="bassgame"]:hover {
    transform: translateY(-10px);
    border-color: rgba(255, 107, 53, 1);
    box-shadow: 0 0 60px rgba(255, 107, 53, 1);
}

.app-card[data-app="bassgame"]::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.4);
    transition: background 0.3s ease;
}

.app-card[data-app="bassgame"]:hover::before {
    background: rgba(0, 0, 0, 0.2);
}

.app-card[data-app="bassgame"] .app-card-content {
    position: relative;
    z-index: 2;
}

.app-card[data-app="bassgame"] .app-title {
    color: #ff6b35 !important;
    text-shadow: 
        0 0 10px rgba(255, 107, 53, 0.8),
        0 0 20px rgba(255, 107, 53, 0.6),
        0 0 30px rgba(255, 107, 53, 0.4);
}

.app-card[data-app="bassgame"] .status-badge.available {
    background: #ff6b35 !important;
    color: #fff !important;
    text-shadow: 0 0 10px rgba(255, 107, 53, 0.8) !important;
    box-shadow: 0 0 20px rgba(255, 107, 53, 0.4) !important;
}

/* Music Master DAW App Card */
.app-card[data-app="daw"] {
    background: linear-gradient(135deg, rgba(255, 107, 53, 0.3) 0%, rgba(255, 107, 53, 0.1) 100%), 
                url('../assets/daw.png');
    background-size: cover;
    background-position: center;
    background-blend-mode: overlay;
    border: 2px solid rgba(255, 107, 53, 0.6);
    box-shadow: 0 0 30px rgba(255, 107, 53, 0.4);
    position: relative;
    overflow: hidden;
}

.app-card[data-app="daw"]:hover {
    transform: translateY(-10px);
    border-color: rgba(255, 107, 53, 1);
    box-shadow: 0 0 60px rgba(255, 107, 53, 1);
}

.app-card[data-app="daw"]::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.4);
    transition: background 0.3s ease;
}

.app-card[data-app="daw"]:hover::before {
    background: rgba(0, 0, 0, 0.2);
}

.app-card[data-app="daw"] .app-card-content {
    position: relative;
    z-index: 2;
}

.app-card[data-app="daw"] .app-title {
    color: #ff6b35 !important;
    text-shadow: 
        0 0 10px rgba(255, 107, 53, 0.8),
        0 0 20px rgba(255, 107, 53, 0.6),
        0 0 30px rgba(255, 107, 53, 0.4);
}

.app-card[data-app="daw"] .status-badge.available {
    background: #ff6b35 !important;
    color: #fff !important;
    text-shadow: 0 0 10px rgba(255, 107, 53, 0.8) !important;
    box-shadow: 0 0 20px rgba(255, 107, 53, 0.4) !important;
}

.app-card-content {
    padding: 20px;
    height: 100%;
    display: flex;
    flex-direction: column;
    justify-content: flex-start !important;
    align-items: center;
    text-align: center;
}

.app-title {
    font-family: 'Orbitron', monospace !important;
    font-size: 1.8rem !important;
    font-weight: 900 !important;
    text-transform: none !important;
    margin: 0 0 auto 0 !important;
    line-height: 1.1 !important;
    text-align: center !important;
    align-self: flex-start !important;
    width: 100% !important;
    color: #ff6b35 !important;
    text-shadow: 
        -1px -1px 0 #ffab7a,
        1px -1px 0 #ffab7a,
        -1px 1px 0 #ffab7a,
        1px 1px 0 #ffab7a,
        0 0 5px #ff6b35,
        0 0 10px #ff6b35,
        0 0 15px #ff6b35,
        0 0 20px #ff6b35,
        0 0 30px #ff6b35 !important;
    animation: neonFlicker 2s infinite alternate !important;
    letter-spacing: 2px !important;
}

.title-line {
    display: block;
}

.app-description {
    font-size: 1rem;
    color: #e0e0e0;
    line-height: 1.5;
    margin: 20px 0 auto 0;
    text-align: center;
    flex: 1;
    display: flex;
    align-items: center;
    justify-content: center;
}

.app-status {
    margin: 20px 0 0 0;
    align-self: center;
}

.status-badge {
    padding: 8px 20px;
    border-radius: 20px;
    font-size: 0.9rem;
    font-weight: 600;
    text-transform: uppercase;
}

.status-badge.available {
    background: #ff6b35;
    color: #fff;
    text-shadow: 0 0 10px rgba(255, 107, 53, 0.8);
    box-shadow: 0 0 20px rgba(255, 107, 53, 0.4);
}

.status-badge.development {
    background: #ff6b35;
    color: #fff;
    text-shadow: 0 0 10px rgba(255, 107, 53, 0.8);
    box-shadow: 0 0 20px rgba(255, 107, 53, 0.4);
}

/* Force update - remove this comment to force cache refresh v2 */

.app-description {
    color: #e0e0e0;
    font-size: 1rem;
    line-height: 1.5;
    margin: 0;
    opacity: 0.9;
    flex: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
}

.app-status {
    margin-top: 20px;
}

.status-badge {
    display: inline-block;
    padding: 8px 16px;
    border-radius: 25px;
    font-size: 0.9rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.status-badge.available {
    background: #ff6b35 !important;
    color: #fff !important;
    text-shadow: 0 0 10px rgba(255, 107, 53, 0.8) !important;
    box-shadow: 0 0 20px rgba(255, 107, 53, 0.4) !important;
}

.status-badge.development {
    background: #ff6b35 !important;
    color: #fff !important;
    text-shadow: 0 0 10px rgba(255, 107, 53, 0.8) !important;
    box-shadow: 0 0 20px rgba(255, 107, 53, 0.4) !important;
}

/* Legacy styles - can be removed later */
.app-card-header {
    display: flex;
    justify-content: space-between;
    align-items: start;
    margin-bottom: var(--spacing-lg);
}

.app-icon {
    width: 60px;
    height: 60px;
    background: linear-gradient(135deg, var(--primary-color), var(--primary-dark));
    border-radius: var(--radius-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-white);
    font-size: var(--font-size-2xl);
}

.app-card-content {
    flex: 1;
    display: flex;
    flex-direction: column;
}

.app-title {
    font-size: var(--font-size-2xl);
    font-weight: 700;
    margin-bottom: var(--spacing-md);
    color: #ffffff;
    line-height: 1.2;
}

.app-description {
    color: var(--text-secondary);
    margin-bottom: var(--spacing-lg);
    line-height: 1.6;
    font-size: var(--font-size-base);
    flex: 1;
}

.app-features {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-sm);
    margin-top: auto;
}

.feature-tag {
    background: rgba(255, 136, 0, 0.1);
    color: #ff8c42;
    border: 1px solid rgba(255, 136, 0, 0.3);
    padding: 0.4rem 0.8rem;
    border-radius: var(--radius-md);
    font-size: var(--font-size-sm);
    font-weight: 500;
}

.status-badge {
    padding: var(--spacing-xs) var(--spacing-md);
    border-radius: var(--radius-xl);
    font-size: var(--font-size-xs);
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.status-badge.available {
    background: #d4edda;
    color: #155724;
}

.status-badge.development {
    background: #fff3cd;
    color: #856404;
}

.app-title {
    font-size: var(--font-size-lg);
    font-weight: 700;
    margin-bottom: var(--spacing-xs);
    color: #ffffff;
}

.app-description {
    color: var(--text-secondary);
    margin-bottom: var(--spacing-sm);
    line-height: 1.4;
    font-size: var(--font-size-sm);
    flex: 1;
}

.app-features {
    display: flex;
    flex-wrap: wrap;
    gap: 0.25rem;
    margin-bottom: var(--spacing-sm);
}

.feature-tag {
    background: rgba(255, 136, 0, 0.1);
    color: #ff8c42;
    border: 1px solid rgba(255, 136, 0, 0.3);
    padding: 0.2rem 0.5rem;
    border-radius: var(--radius-sm);
    font-size: 0.7rem;
    font-weight: 500;
}

.app-preview-btn {
    width: 100%;
    justify-content: center;
    margin-top: auto;
    padding: 0.6rem 1rem;
    font-size: var(--font-size-sm);
}

.development-roadmap {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-lg);
}

.roadmap-item {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    padding: var(--spacing-sm);
    background: var(--bg-secondary);
    border-radius: var(--radius-md);
    color: var(--text-secondary);
}

.roadmap-item i {
    color: var(--primary-color);
    width: 20px;
}

/* About Section */
.about {
    padding: var(--spacing-3xl) 0;
    background: linear-gradient(135deg, rgba(0, 0, 0, 0.45), rgba(26, 26, 46, 0.55));
    background-attachment: fixed;
    position: relative;
    color: var(--text-white);
    overflow: hidden;
    min-height: 60vh;
    transition: background 0.3s ease;
}

.about.bg-loaded {
    background-attachment: fixed;
    background-size: cover;
    background-position: center;
}

.about::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: radial-gradient(circle at 50% 50%, rgba(255, 107, 53, 0.1) 0%, transparent 70%);
    pointer-events: none;
    z-index: 1;
}

.about-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-md);
    position: relative;
    z-index: 2;
}

.about-content {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: var(--spacing-3xl);
    align-items: center;
}

.about-title {
    font-size: var(--font-size-4xl);
    font-weight: 700;
    margin-bottom: var(--spacing-lg);
    color: var(--text-white);
}

.about-description {
    font-size: var(--font-size-lg);
    color: rgba(255, 255, 255, 0.9);
    margin-bottom: var(--spacing-xl);
    line-height: 1.7;
}

.about-features {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-lg);
}

.about-feature {
    display: flex;
    gap: var(--spacing-lg);
    align-items: start;
}

.feature-icon {
    width: 50px;
    height: 50px;
    background: linear-gradient(135deg, var(--primary-color), var(--primary-dark));
    border-radius: var(--radius-xl);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-white);
    font-size: var(--font-size-lg);
    flex-shrink: 0;
}

.feature-content h4 {
    font-size: var(--font-size-xl);
    font-weight: 600;
    margin-bottom: var(--spacing-xs);
    color: var(--text-white);
}

.feature-content p {
    color: rgba(255, 255, 255, 0.8);
    margin: 0;
}

.about-visual {
    display: flex;
    justify-content: center;
    align-items: center;
}

.stats-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--spacing-lg);
    width: 100%;
}

.stat-card {
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(10px);
    border-radius: var(--radius-xl);
    padding: var(--spacing-xl);
    text-align: center;
    border: 1px solid rgba(255, 255, 255, 0.2);
    box-shadow: var(--shadow-lg);
}

.stat-number {
    font-size: var(--font-size-4xl);
    font-weight: 700;
    color: var(--primary-color);
    margin-bottom: var(--spacing-sm);
    text-shadow: 0 2px 4px rgba(0, 0, 0, 0.3);
}

/* Símbolo de infinito más grande */
.stat-number:contains("∞") {
    font-size: 4rem;
    line-height: 1;
}

/* Alternativa más específica para el símbolo de infinito */
.stat-card:nth-child(2) .stat-number {
    font-size: 4.5rem;
    line-height: 0.8;
    transform: scale(1.2);
}

.stat-label {
    color: rgba(255, 255, 255, 0.9);
    font-weight: 500;
    font-size: var(--font-size-sm);
}

/* Contact Section */
.contact {
    padding: var(--spacing-3xl) 0;
    background: linear-gradient(135deg, rgba(0, 0, 0, 0.45), rgba(26, 26, 46, 0.55));
    background-attachment: fixed;
    position: relative;
    color: var(--text-white);
    overflow: hidden;
    min-height: 60vh;
    transition: background 0.3s ease;
}

.contact.bg-loaded {
    background-attachment: fixed;
    background-size: cover;
    background-position: center;
}

.contact::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: radial-gradient(circle at 50% 50%, rgba(255, 107, 53, 0.1) 0%, transparent 70%);
    pointer-events: none;
    z-index: 1;
}

.contact-container {
    max-width: 800px;
    margin: 0 auto;
    padding: 0 var(--spacing-md);
    text-align: center;
    position: relative;
    z-index: 2;
}

.contact-title {
    font-size: var(--font-size-4xl);
    font-weight: 700;
    margin-bottom: var(--spacing-lg);
    color: var(--text-white);
}

.contact-description {
    font-size: var(--font-size-lg);
    color: rgba(255, 255, 255, 0.9);
    margin-bottom: var(--spacing-xl);
}

.contact-methods {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--spacing-lg);
}

.contact-method {
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(10px);
    border-radius: var(--radius-xl);
    padding: var(--spacing-xl);
    display: flex;
    align-items: center;
    gap: var(--spacing-lg);
    box-shadow: var(--shadow-lg);
    border: 1px solid rgba(255, 255, 255, 0.2);
    transition: all var(--transition-normal);
    text-decoration: none;
    color: var(--text-white);
}

.contact-method:hover {
    transform: translateY(-4px);
    box-shadow: 0 12px 36px rgba(255, 136, 0, 0.25);
    background: rgba(255, 255, 255, 0.15);
    border-color: rgba(255, 136, 0, 0.4);
    color: var(--text-white);
}

.method-icon {
    width: 50px;
    height: 50px;
    background: linear-gradient(135deg, var(--primary-color), var(--primary-dark));
    border-radius: var(--radius-xl);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-white);
    font-size: var(--font-size-lg);
    flex-shrink: 0;
}

.method-content {
    text-align: left;
}

.method-content h4 {
    font-size: var(--font-size-lg);
    font-weight: 600;
    margin-bottom: var(--spacing-xs);
    color: var(--text-white);
}

.method-content p {
    color: rgba(255, 255, 255, 0.8);
    margin: 0;
    font-size: var(--font-size-sm);
}

/* Suggestions Form */
.suggestions-form {
    max-width: 600px;
    margin: var(--spacing-xl) auto 0;
    padding: var(--spacing-xl);
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(15px);
    border-radius: var(--radius-2xl);
    border: 1px solid rgba(255, 255, 255, 0.2);
    box-shadow: var(--shadow-xl);
}

.form-group {
    margin-bottom: var(--spacing-lg);
}

.form-label {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    font-weight: 600;
    color: var(--text-white);
    margin-bottom: var(--spacing-xs);
    font-size: var(--font-size-sm);
}

.form-label i {
    color: var(--primary-color);
    width: 16px;
}

.form-input,
.form-textarea {
    width: 100%;
    padding: var(--spacing-md);
    background: rgba(255, 255, 255, 0.1);
    border: 1px solid rgba(255, 255, 255, 0.3);
    border-radius: var(--radius-lg);
    color: var(--text-white);
    font-family: var(--font-family);
    font-size: var(--font-size-base);
    transition: all var(--transition-normal);
    backdrop-filter: blur(10px);
}

.form-input::placeholder,
.form-textarea::placeholder {
    color: rgba(255, 255, 255, 0.6);
}

.form-input:focus,
.form-textarea:focus {
    outline: none;
    border-color: var(--primary-color);
    background: rgba(255, 255, 255, 0.15);
    box-shadow: 0 0 0 3px rgba(255, 107, 53, 0.2);
}

.form-textarea {
    resize: vertical;
    min-height: 120px;
    line-height: 1.6;
}

/* Estilos específicos para el select (desplegable) */
select.form-input {
    appearance: none;
    -webkit-appearance: none;
    -moz-appearance: none;
    background-image: url("data:image/svg+xml;charset=UTF-8,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='white' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3e%3cpolyline points='6,9 12,15 18,9'%3e%3c/polyline%3e%3c/svg%3e");
    background-repeat: no-repeat;
    background-position: right var(--spacing-md) center;
    background-size: 16px;
    padding-right: calc(var(--spacing-md) + 24px);
    cursor: pointer;
}

select.form-input option {
    background: var(--gray-800);
    color: var(--text-white);
    padding: var(--spacing-sm);
    border: none;
}

select.form-input option:checked {
    background: var(--primary-color);
    color: var(--text-white);
}

select.form-input option:hover {
    background: var(--gray-700);
}

/* Estilo para cuando el select está vacío (placeholder) */
select.form-input:invalid {
    color: rgba(255, 255, 255, 0.6);
}

select.form-input:valid {
    color: var(--text-white);
}

.form-submit {
    width: 100%;
    padding: var(--spacing-md) var(--spacing-lg);
    background: linear-gradient(135deg, var(--primary-color), var(--primary-dark));
    border: none;
    border-radius: var(--radius-lg);
    color: var(--text-white);
    font-family: var(--font-family);
    font-size: var(--font-size-base);
    font-weight: 600;
    cursor: pointer;
    transition: all var(--transition-normal);
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-xs);
    box-shadow: var(--shadow-md);
}

.form-submit:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
    background: linear-gradient(135deg, var(--primary-dark), #d44820);
}

.form-submit:active {
    transform: translateY(0);
}

.form-submit:disabled {
    opacity: 0.7;
    cursor: not-allowed;
    transform: none;
}

.form-submit.loading {
    pointer-events: none;
}

.form-submit.loading i {
    animation: spin 1s linear infinite;
}

@keyframes spin {
    from { transform: rotate(0deg); }
    to { transform: rotate(360deg); }
}

/* ==========================================
   SECCIÓN DE SOPORTE/DONACIÓN
   ========================================== */

.nueva-seccion {
    padding: var(--spacing-3xl) 0;
    background: 
        linear-gradient(135deg, rgba(0, 0, 0, 0.45), rgba(26, 26, 46, 0.55)), 
        url('../assets/Fondo8.png') center/cover fixed;
    background-attachment: fixed;
    position: relative;
    color: var(--text-white);
    overflow: hidden;
    min-height: 60vh;
}



.nueva-seccion-container {
    max-width: 800px;
    margin: 0 auto;
    padding: 0 var(--spacing-md);
    position: relative;
    z-index: 2;
}

.nueva-seccion-content {
    color: var(--text-white);
    text-align: center;
}

.nueva-seccion-content .section-header {
    margin-bottom: var(--spacing-3xl);
}

.nueva-seccion-content .section-title {
    font-size: var(--font-size-4xl);
    font-weight: 700;
    margin-bottom: var(--spacing-lg);
    color: var(--text-white);
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-sm);
}

.nueva-seccion-content .section-title i {
    color: var(--text-white);
}

.nueva-seccion-content .section-description {
    font-size: var(--font-size-lg);
    color: rgba(255, 255, 255, 0.9);
    line-height: 1.7;
    max-width: 600px;
    margin: 0 auto;
}

/* Formulario de Donación */
.donation-form {
    background: rgba(255, 255, 255, 0.05);
    backdrop-filter: blur(15px);
    border: 1px solid rgba(255, 136, 0, 0.2);
    border-radius: var(--radius-2xl);
    padding: var(--spacing-2xl);
    margin-top: var(--spacing-2xl);
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

.donation-title {
    font-size: var(--font-size-xl);
    color: var(--text-white);
    margin-bottom: var(--spacing-xl);
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-sm);
}

.donation-title i {
    color: #ff6b35;
}

.donation-amounts {
    display: flex;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-xl);
    flex-wrap: wrap;
    justify-content: center;
}

.amount-btn {
    background: rgba(255, 136, 0, 0.1);
    border: 2px solid rgba(255, 136, 0, 0.3);
    color: var(--text-white);
    padding: var(--spacing-sm) var(--spacing-lg);
    border-radius: var(--radius-lg);
    font-weight: 600;
    cursor: pointer;
    transition: all var(--transition-normal);
    font-size: var(--font-size-md);
}

.amount-btn:hover,
.amount-btn.active {
    background: rgba(255, 136, 0, 0.2);
    border-color: #ff6b35;
    transform: translateY(-2px);
}

.custom-amount {
    background: rgba(255, 255, 255, 0.1);
    border: 2px solid rgba(255, 136, 0, 0.3);
    color: var(--text-white);
    padding: var(--spacing-sm) var(--spacing-md);
    border-radius: var(--radius-lg);
    font-size: var(--font-size-md);
    width: 120px;
    text-align: center;
}

.custom-amount::placeholder {
    color: var(--gray-400);
}

.custom-amount:focus {
    outline: none;
    border-color: #ff6b35;
    box-shadow: 0 0 0 3px rgba(255, 107, 53, 0.1);
}

.card-form {
    margin-bottom: var(--spacing-xl);
}

.form-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-lg);
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 100px 100px;
    gap: var(--spacing-sm);
}

.form-row.full-width {
    grid-template-columns: 1fr;
}

.form-row.expiry-cvc-row {
    grid-template-columns: 1fr 1fr;
}

.form-row.two-columns {
    grid-template-columns: 1fr 1fr;
}

.card-input {
    background: rgba(255, 255, 255, 0.1);
    border: 2px solid rgba(255, 136, 0, 0.3);
    color: var(--text-white);
    padding: var(--spacing-md);
    border-radius: var(--radius-lg);
    font-size: var(--font-size-md);
    transition: all var(--transition-normal);
    width: 100%;
    box-sizing: border-box;
}

.card-input.card-number {
    width: 100%;
}

.card-input.expiry {
    max-width: 100px;
    text-align: center;
    font-size: var(--font-size-sm);
}

.card-input.cvv {
    max-width: 100px;
    text-align: center;
    font-size: var(--font-size-sm);
}

.card-input::placeholder {
    color: var(--gray-400);
}

.card-input.expiry::placeholder,
.card-input.cvv::placeholder {
    color: var(--gray-400);
    font-size: var(--font-size-sm);
}

.card-input:focus {
    outline: none;
    border-color: #ff6b35;
    box-shadow: 0 0 0 3px rgba(255, 107, 53, 0.1);
}

/* Stripe Elements Styling */
#card-number-element {
    background: rgba(255, 255, 255, 0.1);
    border: 2px solid rgba(255, 136, 0, 0.3);
    border-radius: var(--radius-lg);
    padding: var(--spacing-md);
    transition: all var(--transition-normal);
    width: 100%;
}

#card-expiry-element,
#card-cvc-element {
    background: rgba(255, 255, 255, 0.1);
    border: 2px solid rgba(255, 136, 0, 0.3);
    border-radius: var(--radius-lg);
    padding: var(--spacing-md);
    transition: all var(--transition-normal);
}

#card-number-element:focus-within,
#card-expiry-element:focus-within,
#card-cvc-element:focus-within {
    border-color: #ff6b35;
    box-shadow: 0 0 0 3px rgba(255, 107, 53, 0.1);
}

#card-errors {
    color: #fa755a;
    font-size: var(--font-size-sm);
    margin-top: var(--spacing-sm);
    text-align: center;
    min-height: 20px;
}

.donate-btn {
    background: linear-gradient(135deg, #FF8800, #ff6b35);
    border: none;
    color: white;
    padding: var(--spacing-md) var(--spacing-2xl);
    border-radius: var(--radius-lg);
    font-size: var(--font-size-lg);
    font-weight: 600;
    cursor: pointer;
    transition: all var(--transition-normal);
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-sm);
    width: 100%;
    margin-bottom: var(--spacing-md);
}

.donate-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(255, 107, 53, 0.3);
}

.donate-btn:active {
    transform: translateY(0);
}

.security-note {
    color: var(--gray-400);
    font-size: var(--font-size-sm);
    margin: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-xs);
}

.security-note i {
    color: #10b981;
}

@media (max-width: 768px) {
    .nueva-seccion-content .section-title {
        font-size: var(--font-size-2xl);
    }
    
    .donation-form {
        padding: var(--spacing-lg);
        margin: var(--spacing-lg) var(--spacing-sm) 0;
    }
    
    .donation-amounts {
        flex-direction: column;
        align-items: center;
    }
    
    .amount-btn,
    .custom-amount {
        width: 100%;
        max-width: 200px;
    }
    
    .form-row {
        flex-direction: column;
    }
}

/* Footer */
.footer {
    background: var(--gray-900);
    color: var(--text-white);
    padding: var(--spacing-xl) 0;
}

.footer-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-md);
}

.footer-unified {
    display: flex;
    justify-content: center;
    align-items: center;
    flex-wrap: wrap;
    gap: var(--spacing-md);
}

.footer-brand {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
}

.footer-logo {
    height: 40px;
    width: auto;
    border-radius: var(--radius-md);
}

.footer-text h3 {
    font-size: var(--font-size-lg);
    font-weight: 700;
    margin: 0;
    color: var(--text-white);
}

.footer-text p {
    color: var(--gray-400);
    margin: 0;
    font-size: var(--font-size-sm);
}

.footer-copyright p {
    color: var(--gray-400);
    margin: 0;
    font-size: var(--font-size-sm);
}

@media (max-width: 768px) {
    .footer-unified {
        flex-direction: column;
        text-align: center;
    }
}

/* Utility Classes */
.text-center { text-align: center; }
.text-left { text-align: left; }
.text-right { text-align: right; }

.hidden { display: none !important; }
.visible { display: block !important; }

.mt-1 { margin-top: var(--spacing-xs); }
.mt-2 { margin-top: var(--spacing-sm); }
.mt-3 { margin-top: var(--spacing-md); }
.mt-4 { margin-top: var(--spacing-lg); }
.mt-5 { margin-top: var(--spacing-xl); }

.mb-1 { margin-bottom: var(--spacing-xs); }
.mb-2 { margin-bottom: var(--spacing-sm); }
.mb-3 { margin-bottom: var(--spacing-md); }
.mb-4 { margin-bottom: var(--spacing-lg); }
.mb-5 { margin-bottom: var(--spacing-xl); }

/* Neon Animations */
@keyframes neonFlicker {
    0%, 100% {
        opacity: 1;
        filter: brightness(1);
    }
    50% {
        opacity: 0.95;
        filter: brightness(1.1);
    }
}

@keyframes neonPulse {
    0%, 100% {
        transform: scale(1);
        opacity: 1;
    }
    50% {
        transform: scale(1.1);
        opacity: 0.7;
    }
}

@keyframes neonRotate {
    0% {
        transform: translate(-50%, -50%) rotate(0deg);
    }
    100% {
        transform: translate(-50%, -50%) rotate(360deg);
    }
}

/* ================================== */
/* AUDIO VISUALIZER BUTTON */
/* ================================== */

.audio-visualizer-btn {
    position: fixed;
    bottom: 30px;
    right: 30px;
    background: linear-gradient(45deg, #ff6b35, #ff8c42);
    color: white;
    border: none;
    border-radius: 50px;
    padding: 15px 25px;
    font-family: 'Exo 2', sans-serif;
    font-weight: 600;
    font-size: 14px;
    cursor: pointer;
    z-index: 1000;
    box-shadow: 0 4px 15px rgba(255, 107, 53, 0.3);
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    gap: 8px;
    user-select: none;
    -webkit-tap-highlight-color: transparent;
}

.audio-visualizer-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(255, 107, 53, 0.5);
}

.audio-visualizer-btn.active {
    background: linear-gradient(45deg, #ff4757, #ff3838) !important;
    box-shadow: 0 4px 15px rgba(255, 71, 87, 0.4);
}

/* ================================== */
/* APP PREVIEW MODAL */
/* ================================== */

.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.9);
    backdrop-filter: blur(10px);
    z-index: 10000;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    visibility: hidden;
    transition: all 0.3s ease;
    padding: var(--spacing-md);
}

.modal-overlay.active {
    opacity: 1;
    visibility: visible;
}

.modal-container {
    background: var(--gray-900);
    border-radius: var(--radius-2xl);
    max-width: 1200px;
    width: 100%;
    max-height: 90vh;
    overflow-y: auto;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.5);
    border: 1px solid rgba(255, 136, 0, 0.3);
    transform: scale(0.9);
    transition: transform 0.3s ease;
}

.modal-overlay.active .modal-container {
    transform: scale(1);
}

.modal-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--spacing-xl);
    border-bottom: 1px solid var(--gray-700);
    background: linear-gradient(135deg, rgba(255, 107, 53, 0.1), rgba(255, 140, 66, 0.05));
}

.modal-title {
    font-size: var(--font-size-2xl);
    font-weight: 700;
    color: #ffffff;
    margin: 0;
}

.modal-close {
    width: 40px;
    height: 40px;
    border: none;
    background: rgba(255, 255, 255, 0.1);
    color: #ffffff;
    border-radius: 50%;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: var(--font-size-lg);
    transition: all var(--transition-normal);
}

.modal-close:hover {
    background: rgba(255, 107, 53, 0.3);
    transform: rotate(90deg);
}

.modal-content {
    padding: var(--spacing-xl);
}

.modal-gallery {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-xl);
}

.modal-gallery-main {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: var(--spacing-lg);
    align-items: start;
}

.modal-image-container {
    position: relative;
    background: var(--gray-800);
    border-radius: var(--radius-xl);
    overflow: hidden;
    aspect-ratio: 16/10;
}

.modal-image-container img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    border-radius: var(--radius-xl);
}

.modal-image-nav {
    position: absolute;
    top: 50%;
    left: 0;
    right: 0;
    display: flex;
    justify-content: space-between;
    padding: 0 var(--spacing-md);
    transform: translateY(-50%);
    pointer-events: none;
}

.nav-btn {
    width: 50px;
    height: 50px;
    background: rgba(0, 0, 0, 0.7);
    border: none;
    border-radius: 50%;
    color: #ffffff;
    font-size: var(--font-size-lg);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all var(--transition-normal);
    pointer-events: auto;
}

.nav-btn:hover {
    background: rgba(255, 107, 53, 0.8);
    transform: scale(1.1);
}

.nav-btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

.modal-image-description {
    background: var(--gray-800);
    padding: var(--spacing-lg);
    border-radius: var(--radius-xl);
    border-left: 4px solid var(--primary-color);
}

.modal-image-description h4 {
    color: var(--primary-color);
    font-size: var(--font-size-lg);
    font-weight: 600;
    margin-bottom: var(--spacing-sm);
}

.modal-image-description p {
    color: var(--gray-300);
    margin: 0;
    line-height: 1.6;
}

.modal-thumbnails {
    display: flex;
    gap: var(--spacing-sm);
    padding: var(--spacing-md);
    background: var(--gray-800);
    border-radius: var(--radius-xl);
    overflow-x: auto;
}

.modal-thumbnail {
    flex-shrink: 0;
    width: 100px;
    height: 60px;
    border-radius: var(--radius-md);
    overflow: hidden;
    cursor: pointer;
    border: 2px solid transparent;
    transition: all var(--transition-normal);
}

.modal-thumbnail.active {
    border-color: var(--primary-color);
    box-shadow: 0 0 15px rgba(255, 107, 53, 0.5);
}

.modal-thumbnail img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.modal-thumbnail:hover {
    transform: scale(1.05);
    border-color: rgba(255, 107, 53, 0.7);
}

/* Text-only modal items */
.text-only-item {
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(114, 255, 193, 0.2);
    border-radius: 12px;
    padding: 20px;
    margin-bottom: 16px;
    transition: all 0.3s ease;
}

.text-only-item:hover {
    background: rgba(255, 255, 255, 0.08);
    border-color: rgba(114, 255, 193, 0.4);
    transform: translateY(-2px);
}

.text-only-item h4 {
    color: #72ffc1;
    font-size: 1.2rem;
    margin-bottom: 8px;
    font-weight: 600;
}

.text-only-item p {
    color: #e0e0e0;
    line-height: 1.6;
    margin: 0;
}

/* Coming Soon Modal Styles */
.coming-soon-message {
    text-align: center;
    padding: 60px 40px;
}

.neon-text-large {
    font-size: 3.5rem;
    font-weight: 700;
    color: #ff6b35;
    text-shadow: 
        0 0 10px #ff6b35,
        0 0 20px #ff6b35,
        0 0 30px #ff6b35,
        0 0 40px #ff6b35;
    margin-bottom: 30px;
    letter-spacing: 2px;
    animation: neonPulse 2s ease-in-out infinite alternate;
}

.coming-soon-description {
    font-size: 1.3rem;
    color: #e0e0e0;
    line-height: 1.8;
    max-width: 700px;
    margin: 0 auto;
    opacity: 0.9;
}

@keyframes neonPulse {
    from {
        text-shadow: 
            0 0 10px #ff6b35,
            0 0 20px #ff6b35,
            0 0 30px #ff6b35,
            0 0 40px #ff6b35;
    }
    to {
        text-shadow: 
            0 0 20px #ff6b35,
            0 0 30px #ff6b35,
            0 0 40px #ff6b35,
            0 0 50px #ff6b35,
            0 0 60px #ff6b35;
    }
}

.modal-actions {
    display: flex;
    gap: var(--spacing-md);
    justify-content: center;
    padding-top: var(--spacing-lg);
    border-top: 1px solid var(--gray-700);
}

.modal-actions .btn {
    min-width: 180px;
    justify-content: center;
}

/* ================================== */
/* RESPONSIVE DESIGN - MOBILE */
/* ================================== */

@media (max-width: 768px) {
    /* Separador Mobile */
    .section-separator {
        padding: var(--spacing-lg) 0;
    }
    
    .separator-container {
        max-width: 600px;
    }
    
    .separator-dots {
        gap: 4px;
    }
    
    .dot-pulse {
        width: 4px;
        height: 4px;
    }

    /* Hero Section Mobile */
    .hero {
        padding: 80px 0 var(--spacing-xl);
        min-height: 90vh;
    }
    
    .hero-container {
        grid-template-columns: 1fr;
        gap: var(--spacing-xl);
        padding: 0 var(--spacing-md);
        text-align: center;
        max-width: 100%;
        margin: 0 auto;
    }
    
    .hero-content h1 {
        font-size: 2.5rem;
        line-height: 1.2;
        text-align: center;
        width: 100%;
    }
    
    .hero-content p {
        font-size: var(--font-size-md);
        margin-bottom: var(--spacing-lg); /* Más espacio debajo del párrafo */
        text-align: center;
        width: 100%;
        padding: 0 var(--spacing-xs);
    }
    
    /* Hero Actions Mobile */
    .hero-actions {
        flex-direction: column;
        align-items: center;
        gap: var(--spacing-sm);
        width: 100%;
        margin-top: var(--spacing-xl); /* Más espacio arriba */
        padding: 0 var(--spacing-sm);
    }
    
    .hero-actions .btn {
        width: 100%;
        max-width: 280px; /* Volver al tamaño original */
        justify-content: center;
        text-align: center;
        padding: 14px 20px; /* Volver al padding original */
        font-size: 14px; /* Volver al tamaño original */
        white-space: nowrap;
        overflow: hidden;
        text-overflow: ellipsis;
        min-height: 48px;
        display: flex;
        align-items: center;
        gap: 8px;
    }
    
    .hero-actions .btn i {
        font-size: 14px;
        flex-shrink: 0;
    }
    
    .hero-actions .btn span {
        flex: 1;
        text-align: center;
    }
    
    /* Header Mobile */
    .header-container {
        padding: 0 var(--spacing-sm);
    }
    
    .nav-links {
        display: none;
    }
    
    /* Mobile Navigation Layout */
    .nav-container {
        display: flex;
        justify-content: space-between;
        align-items: center;
        position: relative;
    }
    
    .coffee-btn {
        display: flex;
        order: 2;
        margin-right: 50px; /* Espacio para el botón del menú */
    }
    
    .mobile-menu-btn {
        display: block;
        order: 3;
    }
    
    /* Circles Mobile */
    .neon-circles {
        width: 280px;
        height: 280px;
    }
    
    .neon-circle:nth-child(1) { width: 280px; height: 280px; }
    .neon-circle:nth-child(2) { width: 220px; height: 220px; }
    .neon-circle:nth-child(3) { width: 170px; height: 170px; }
    .neon-circle:nth-child(4) { width: 120px; height: 120px; }
    .neon-circle:nth-child(5) { width: 80px; height: 80px; }
    
    /* Preview Gallery Mobile */
    .preview-gallery {
        grid-template-columns: 1fr;
        gap: var(--spacing-md);
    }
    
    .preview-image {
        max-width: 100%;
        height: auto;
    }
    
    /* Audio Button Mobile */
    .audio-visualizer-btn {
        bottom: 20px !important;
        right: 20px !important;
        padding: 10px 15px !important;
        font-size: 12px !important;
        border-radius: 20px !important;
    }
    
    .audio-visualizer-btn span {
        display: none; /* Ocultar texto en móvil */
    }
    
    /* General Mobile Spacing */
    .container {
        padding: 0 var(--spacing-sm);
    }
    
    section {
        padding: var(--spacing-xl) 0;
    }
}

@media (max-width: 480px) {
    /* Extra Small Mobile */
    .hero-content h1 {
        font-size: 2rem;
        text-align: center;
    }
    
    .hero-content p {
        text-align: center;
        padding: 0 var(--spacing-sm);
    }
    
    /* Más espacio para el texto descriptivo */
    .hero-content p {
        margin-bottom: var(--spacing-xl); /* Aún más espacio en pantallas pequeñas */
    }
    
    /* Hero Actions - Mantener tamaño normal */
    .hero-actions {
        margin-top: var(--spacing-2xl); /* Más separación */
        text-align: center;
        width: 100%;
    }
    
    .hero-actions .btn {
        max-width: 280px; /* Tamaño normal */
        padding: 14px 20px; /* Padding normal */
        font-size: 14px; /* Tamaño normal */
        min-height: 48px;
    }
    
    .hero-actions .btn i {
        font-size: 14px;
    }
    
    .neon-circles {
        width: 250px;
        height: 250px;
    }
    
    .neon-circle:nth-child(1) { width: 250px; height: 250px; }
    .neon-circle:nth-child(2) { width: 200px; height: 200px; }
    .neon-circle:nth-child(3) { width: 150px; height: 150px; }
    .neon-circle:nth-child(4) { width: 100px; height: 100px; }
    .neon-circle:nth-child(5) { width: 60px; height: 60px; }
    
    .audio-visualizer-btn {
        bottom: 15px !important;
        right: 15px !important;
        padding: 8px 12px !important;
        font-size: 11px !important;
        border-radius: 18px !important;
    }
    
    .audio-visualizer-btn span {
        display: none !important; /* Solo icono en pantallas muy pequeñas */
    }
}

/* ===========================================
   MODAL DE DONACIONES - COFFEE BUTTON
   =========================================== */

.donation-modal .modal-container {
    max-width: 500px;
    width: 90%;
}

.donation-intro {
    text-align: center;
    margin-bottom: 2rem;
}

.donation-description {
    color: var(--gray-600);
    line-height: 1.6;
    margin: 0;
}

.donation-description i {
    color: #e74c3c;
    margin-right: 0.5rem;
}

.donation-form {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.donation-title {
    text-align: center;
    color: var(--gray-800);
    margin: 0 0 1rem 0;
    font-size: 1.2rem;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
}

.donation-amounts {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 0.75rem;
    margin-bottom: 1rem;
}

.amount-btn {
    background: var(--bg-secondary);
    border: 2px solid var(--gray-300);
    padding: 12px 8px;
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: all 0.3s ease;
    font-weight: 600;
    color: var(--gray-700);
    font-size: 14px;
}

.amount-btn:hover {
    background: var(--primary-color);
    border-color: var(--primary-color);
    color: white;
    transform: translateY(-2px);
}

.amount-btn.selected {
    background: var(--primary-color);
    border-color: var(--primary-color);
    color: white;
}

.custom-amount {
    grid-column: 1 / -1;
    padding: 12px;
    border: 2px solid var(--gray-300);
    border-radius: var(--radius-md);
    font-size: 14px;
    text-align: center;
    transition: border-color 0.3s ease;
}

.custom-amount:focus {
    outline: none;
    border-color: var(--primary-color);
}

.donate-btn {
    background: linear-gradient(135deg, var(--primary-color), var(--primary-dark));
    border: none;
    padding: 14px 20px;
    border-radius: var(--radius-md);
    color: white;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    font-size: 16px;
    margin-top: 1rem;
}

.donate-btn:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

.donate-btn:disabled {
    opacity: 0.6;
    cursor: not-allowed;
    transform: none;
}

.security-note {
    text-align: center;
    font-size: 12px;
    color: var(--gray-500);
    margin: 1rem 0 0 0;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
}

.security-note i {
    color: #27ae60;
}

/* Responsive para modal de donaciones */
@media (max-width: 768px) {
    .coffee-btn span {
        display: none;
    }
    
    .coffee-btn {
        padding: 8px 12px;
    }
    
    .donation-amounts {
        grid-template-columns: 1fr;
        gap: 0.5rem;
    }
    
    .amount-btn {
        padding: 14px;
        font-size: 16px;
    }
    
    /* Formulario de tarjeta en móvil */
    .form-row {
        grid-template-columns: 1fr;
        gap: var(--spacing-sm);
    }
    
    .form-row.full-width {
        grid-template-columns: 1fr;
    }
    
    .form-row.expiry-cvc-row {
        grid-template-columns: 1fr 1fr;
        gap: var(--spacing-sm);
    }
    
    /* Ajustar inputs en móvil */
    .card-input {
        font-size: 16px; /* Previene zoom en iOS */
        padding: var(--spacing-md);
        width: 100%;
        box-sizing: border-box;
    }
    
    #card-number-element {
        width: 100%;
        max-width: none;
    }
    
    .card-input.expiry,
    .card-input.cvv {
        max-width: none;
        width: 100%;
        text-align: left;
    }
    
    /* Modal en móvil */
    .modal-container {
        margin: var(--spacing-sm);
        max-height: 90vh;
        overflow-y: auto;
    }
    
    .modal-content {
        padding: var(--spacing-lg);
    }
}