/* Reset y configuración base */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --primary-pink: #ff69b4;
    --secondary-pink: #ff1493;
    --light-pink: #ffe4e1;
    --dark-pink: #c71585;
    --gold: #ffd700;
    --white: #ffffff;
    --black: #1a1a1a;
    --gradient-primary: linear-gradient(135deg, #ff69b4 0%, #ff1493 100%);
    --gradient-secondary: linear-gradient(135deg, #ffe4e1 0%, #ffb6c1 100%);
    --gradient-gold: linear-gradient(135deg, #ffd700 0%, #ffed4e 100%);
    --shadow-soft: 0 10px 25px rgba(255, 105, 180, 0.2);
    --shadow-strong: 0 20px 40px rgba(255, 105, 180, 0.3);
    --shadow-gold: 0 10px 25px rgba(255, 215, 0, 0.3);
}

body {
    font-family: 'Poppins', sans-serif;
    background: var(--gradient-secondary);
    min-height: 100vh;
    overflow-x: hidden;
    color: var(--black);
    position: relative;
}

/* Partículas de fondo */
#particles-js {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: -1;
    background: linear-gradient(45deg, #ffe4e1 0%, #ffb6c1 50%, #ffe4e1 100%);
}

/* Cursor personalizado */
.custom-cursor {
    position: fixed;
    width: 20px;
    height: 20px;
    background: var(--primary-pink);
    border-radius: 50%;
    pointer-events: none;
    z-index: 9999;
    mix-blend-mode: difference;
    transition: transform 0.1s ease;
}

/* Loading screen */
.loading-screen {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: var(--gradient-primary);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 10000;
    transition: opacity 0.5s ease;
}

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

.heart-loader {
    width: 60px;
    height: 60px;
    margin: 0 auto 20px;
    position: relative;
    animation: heartBeat 1.5s ease-in-out infinite;
}

.heart-loader::before,
.heart-loader::after {
    content: '';
    position: absolute;
    width: 30px;
    height: 50px;
    background: var(--white);
    border-radius: 30px 30px 0 0;
}

.heart-loader::before {
    left: 30px;
    transform: rotate(-45deg);
    transform-origin: 0 100%;
}

.heart-loader::after {
    left: 0;
    transform: rotate(45deg);
    transform-origin: 100% 100%;
}

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

/* Navegación flotante */
.floating-nav {
    position: fixed;
    top: 50%;
    right: 20px;
    transform: translateY(-50%);
    display: flex;
    flex-direction: column;
    gap: 15px;
    z-index: 1000;
}

.nav-item {
    width: 60px;
    height: 60px;
    background: var(--gradient-primary);
    border-radius: 50%;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    color: var(--white);
    cursor: pointer;
    transition: all 0.3s ease;
    box-shadow: var(--shadow-soft);
    position: relative;
    overflow: hidden;
}

.nav-item::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(45deg, transparent, rgba(255,255,255,0.2), transparent);
    transform: translateX(-100%);
    transition: transform 0.3s ease;
}

.nav-item:hover::before {
    transform: translateX(100%);
}

.nav-item:hover {
    transform: scale(1.1);
    box-shadow: var(--shadow-strong);
}

.nav-item i {
    font-size: 1.2rem;
    margin-bottom: 2px;
}

.nav-item span {
    font-size: 0.7rem;
    font-weight: 600;
}

.nav-item.active {
    background: var(--gradient-gold);
    box-shadow: var(--shadow-gold);
}

/* Secciones */
.section {
    min-height: 100vh;
    display: none;
    padding: 20px;
    position: relative;
}

.section.active {
    display: block;
}

/* Sección Home */
.hero-container {
    height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    overflow: hidden;
}

.hero-content {
    text-align: center;
    z-index: 2;
    position: relative;
}

.main-title {
    font-family: 'Great Vibes', cursive;
    font-size: 4rem;
    font-weight: 700;
    color: var(--primary-pink);
    margin-bottom: 1rem;
    text-shadow: 2px 2px 4px rgba(0,0,0,0.1);
}

.heart-icon {
    display: inline-block;
    animation: pulse 2s ease-in-out infinite;
    margin: 0 10px;
}

@keyframes pulse {
    0%, 100% { transform: scale(1); }
    50% { transform: scale(1.2); }
}

.hero-subtitle {
    font-size: 1.5rem;
    color: var(--secondary-pink);
    margin-bottom: 2rem;
    font-weight: 300;
}

.hero-buttons {
    display: flex;
    gap: 20px;
    justify-content: center;
    flex-wrap: wrap;
}

.btn-primary, .btn-secondary {
    padding: 15px 30px;
    border: none;
    border-radius: 50px;
    font-size: 1.1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    gap: 10px;
    text-decoration: none;
}

.btn-primary {
    background: var(--gradient-primary);
    color: var(--white);
    box-shadow: var(--shadow-soft);
}

.btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-strong);
}

.btn-secondary {
    background: var(--white);
    color: var(--primary-pink);
    border: 2px solid var(--primary-pink);
}

.btn-secondary:hover {
    background: var(--primary-pink);
    color: var(--white);
    transform: translateY(-3px);
}

/* Corazones flotantes */
.floating-hearts {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    z-index: 1;
}

.heart {
    position: absolute;
    font-size: 2rem;
    animation: float 6s ease-in-out infinite;
    opacity: 0.6;
}

.heart:nth-child(1) { left: 10%; animation-delay: 0s; }
.heart:nth-child(2) { left: 20%; animation-delay: 1s; }
.heart:nth-child(3) { left: 70%; animation-delay: 2s; }
.heart:nth-child(4) { left: 80%; animation-delay: 3s; }
.heart:nth-child(5) { left: 50%; animation-delay: 4s; }

@keyframes float {
    0%, 100% {
        transform: translateY(100vh) rotate(0deg);
        opacity: 0;
    }
    50% {
        opacity: 0.8;
    }
    100% {
        transform: translateY(-100px) rotate(360deg);
        opacity: 0;
    }
}

/* Sección Música */
.music-container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 40px 20px;
}

.section-title {
    font-family: 'Great Vibes', cursive;
    font-size: 3rem;
    color: var(--primary-pink);
    text-align: center;
    margin-bottom: 40px;
    font-weight: 700;
}

.section-title i {
    margin-right: 15px;
    color: var(--gold);
}

.special-message {
    text-align: center;
    margin: 30px 0;
    padding: 20px;
    background: linear-gradient(135deg, rgba(255,105,180,0.1), rgba(255,20,147,0.1));
    border-radius: 15px;
    border: 2px solid rgba(255,105,180,0.2);
}

.special-message p {
    font-size: 1.1rem;
    color: var(--dark-pink);
    font-weight: 500;
    margin: 0;
    line-height: 1.6;
}

.music-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 30px;
    margin-top: 40px;
}

.music-card {
    background: var(--white);
    border-radius: 20px;
    padding: 25px;
    box-shadow: var(--shadow-soft);
    transition: all 0.3s ease;
    border: 2px solid transparent;
    position: relative;
    overflow: hidden;
}

.music-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(45deg, transparent, rgba(255,105,180,0.05), transparent);
    transform: translateX(-100%);
    transition: transform 0.5s ease;
}

.music-card:hover::before {
    transform: translateX(100%);
}

.music-card:hover {
    transform: translateY(-10px);
    box-shadow: var(--shadow-strong);
    border-color: var(--primary-pink);
}

.music-card.featured {
    background: linear-gradient(135deg, var(--light-pink) 0%, var(--white) 100%);
    border: 3px solid var(--gold);
    transform: scale(1.05);
}

.song-badge {
    position: absolute;
    top: 15px;
    right: 15px;
    background: var(--gradient-gold);
    color: var(--black);
    padding: 5px 15px;
    border-radius: 20px;
    font-size: 0.8rem;
    font-weight: 700;
    box-shadow: var(--shadow-gold);
}

.card-header {
    margin-bottom: 20px;
}

.song-title {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--primary-pink);
    margin-bottom: 5px;
}

.song-album {
    font-size: 0.9rem;
    color: #666;
    font-style: italic;
}

.card-body {
    margin-top: 15px;
}

.song-dedication {
    font-size: 0.95rem;
    color: var(--black);
    line-height: 1.6;
    margin-bottom: 20px;
    font-style: italic;
}

.song-controls {
    display: flex;
    align-items: center;
    gap: 15px;
}

.play-btn {
    width: 50px;
    height: 50px;
    background: var(--gradient-primary);
    border: none;
    border-radius: 50%;
    color: var(--white);
    font-size: 1.2rem;
    cursor: pointer;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    justify-content: center;
}

.play-btn:hover {
    transform: scale(1.1);
    box-shadow: 0 5px 15px rgba(255,105,180,0.4);
}

.play-btn.playing {
    background: var(--gradient-secondary);
    animation: pulse 1.5s ease-in-out infinite;
    box-shadow: 0 5px 15px rgba(255,105,180,0.6);
}

.play-btn.playing:hover {
    background: var(--gradient-primary);
    animation: none;
    transform: scale(1.05);
}

.progress-bar {
    flex: 1;
    height: 6px;
    background: #eee;
    border-radius: 3px;
    overflow: hidden;
}

.progress-fill {
    height: 100%;
    background: var(--gradient-primary);
    width: 0%;
    transition: width 0.3s ease;
}

/* Sección Galería */
.gallery-container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 40px 20px;
}

.gallery-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
    margin-top: 40px;
}

.gallery-item {
    perspective: 1000px;
}

.moment-card {
    background: var(--white);
    border-radius: 20px;
    padding: 30px;
    text-align: center;
    box-shadow: var(--shadow-soft);
    transition: all 0.3s ease;
    border: 2px solid transparent;
    position: relative;
    overflow: hidden;
}

.moment-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(45deg, transparent, rgba(255,105,180,0.1), transparent);
    transform: translateX(-100%);
    transition: transform 0.5s ease;
}

.moment-card:hover::before {
    transform: translateX(100%);
}

.moment-card:hover {
    transform: translateY(-10px) rotateY(5deg);
    box-shadow: var(--shadow-strong);
    border-color: var(--primary-pink);
}

.moment-icon {
    font-size: 4rem;
    margin-bottom: 20px;
    animation: bounce 2s ease-in-out infinite;
}

@keyframes bounce {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-10px); }
}

.moment-card h3 {
    font-size: 1.3rem;
    color: var(--primary-pink);
    margin-bottom: 15px;
    font-weight: 600;
}

.moment-card p {
    font-size: 0.95rem;
    color: #666;
    line-height: 1.6;
    margin-bottom: 15px;
}

.moment-date {
    font-size: 0.8rem;
    color: var(--secondary-pink);
    font-weight: 600;
    font-style: italic;
}

/* Sección Mensaje */
.message-container {
    max-width: 800px;
    margin: 0 auto;
    padding: 40px 20px;
}

.message-card {
    background: var(--white);
    border-radius: 25px;
    padding: 40px;
    box-shadow: var(--shadow-soft);
    border: 3px solid var(--primary-pink);
    position: relative;
    overflow: hidden;
}

.message-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 100 100"><text y="50" font-size="15" fill="rgba(255,105,180,0.05)">💕</text></svg>') repeat;
    animation: float-hearts 4s linear infinite;
}

@keyframes float-hearts {
    0% { transform: translateY(0); }
    100% { transform: translateY(-20px); }
}

.message-title {
    font-family: 'Great Vibes', cursive;
    font-size: 2.5rem;
    color: var(--primary-pink);
    text-align: center;
    margin-bottom: 30px;
    font-weight: 700;
    position: relative;
    z-index: 2;
}

.message-content {
    position: relative;
    z-index: 2;
}

.message-paragraph {
    font-size: 1.1rem;
    line-height: 1.8;
    color: var(--black);
    margin-bottom: 20px;
    text-align: justify;
}

.message-paragraph em {
    color: var(--secondary-pink);
    font-weight: 600;
}

.message-signature {
    text-align: center;
    margin-top: 30px;
    padding-top: 20px;
    border-top: 2px solid var(--light-pink);
}

.message-signature p {
    margin-bottom: 5px;
    font-size: 1rem;
}

.signature-name {
    font-family: 'Great Vibes', cursive;
    font-size: 2rem;
    font-weight: 700;
    color: var(--primary-pink);
    margin-top: 10px;
}

/* Responsive design */
@media (max-width: 768px) {
    .main-title {
        font-size: 2.5rem;
    }
    
    .hero-subtitle {
        font-size: 1.2rem;
    }
    
    .hero-buttons {
        flex-direction: column;
        align-items: center;
    }
    
    .floating-nav {
        right: 10px;
    }
    
    .nav-item {
        width: 50px;
        height: 50px;
    }
    
    .nav-item span {
        display: none;
    }
    
    .music-grid {
        grid-template-columns: 1fr;
    }
    
    .gallery-grid {
        grid-template-columns: 1fr;
    }
    
    .section-title {
        font-size: 2rem;
    }
    
    .message-card {
        padding: 25px;
    }
    
    .message-title {
        font-size: 2rem;
    }
}

@media (max-width: 480px) {
    .main-title {
        font-size: 2rem;
    }
    
    .hero-subtitle {
        font-size: 1rem;
    }
    
    .btn-primary, .btn-secondary {
        padding: 12px 25px;
        font-size: 1rem;
    }
    
    .music-card {
        padding: 20px;
    }
    
    .moment-card {
        padding: 25px;
    }
    
    .message-card {
        padding: 20px;
    }
    
    .message-title {
        font-size: 1.8rem;
    }
    
    .message-paragraph {
        font-size: 1rem;
    }
}

/* Estilos específicos para iPhone */
.iphone-device .play-btn {
    min-height: 60px;
    min-width: 60px;
    font-size: 1.4rem;
}

.iphone-device .music-card {
    padding: 30px;
}

.iphone-device .notification {
    font-size: 1.1rem;
    padding: 15px 20px;
}

.iphone-device .section-title {
    font-size: 2rem;
}

.iphone-device .main-title {
    font-size: 3rem;
}

.iphone-device .hero-subtitle {
    font-size: 1.3rem;
}

/* Modal para activar audio en iOS */
.ios-audio-modal {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0,0,0,0.9);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 20000;
    opacity: 0;
    visibility: hidden;
    transition: all 0.3s ease;
}

.ios-audio-modal.show {
    opacity: 1;
    visibility: visible;
}

.ios-modal-content {
    background: white;
    border-radius: 20px;
    padding: 30px;
    max-width: 500px;
    width: 90%;
    text-align: center;
    box-shadow: 0 20px 40px rgba(0,0,0,0.3);
    transform: scale(0.9);
    transition: transform 0.3s ease;
}

.ios-audio-modal.show .ios-modal-content {
    transform: scale(1);
}

.ios-modal-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 20px;
    padding-bottom: 15px;
    border-bottom: 2px solid #f0f0f0;
}

.ios-modal-header h3 {
    color: var(--primary-pink);
    font-size: 1.5rem;
    margin: 0;
}

.ios-close-btn {
    background: none;
    border: none;
    font-size: 2rem;
    color: #999;
    cursor: pointer;
    padding: 0;
    width: 30px;
    height: 30px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.ios-close-btn:hover {
    color: var(--primary-pink);
}

.ios-steps {
    margin: 25px 0;
}

.step {
    display: flex;
    align-items: center;
    margin: 15px 0;
    text-align: left;
}

.step-number {
    background: var(--gradient-primary);
    color: white;
    width: 30px;
    height: 30px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: bold;
    margin-right: 15px;
    flex-shrink: 0;
}

.step p {
    margin: 0;
    font-size: 1rem;
    line-height: 1.4;
}

.ios-activate-btn {
    background: var(--gradient-primary);
    color: white;
    border: none;
    padding: 15px 30px;
    border-radius: 25px;
    font-size: 1.1rem;
    font-weight: 600;
    cursor: pointer;
    margin: 20px 0;
    transition: all 0.3s ease;
    box-shadow: 0 5px 15px rgba(255,105,180,0.3);
}

.ios-activate-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 20px rgba(255,105,180,0.4);
}

.ios-activate-btn-alt {
    background: var(--gradient-secondary);
    margin-top: 10px;
}

.ios-activate-btn-alt:hover {
    background: var(--gradient-primary);
}

.ios-note {
    font-size: 0.9rem;
    color: #666;
    font-style: italic;
    margin-top: 15px;
}

/* Efectos especiales */
.heart-rain {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    z-index: 1000;
}

.heart-drop {
    position: absolute;
    font-size: 1.5rem;
    animation: heartFall 3s linear forwards;
}

@keyframes heartFall {
    0% {
        transform: translateY(-100px) rotate(0deg);
        opacity: 1;
    }
    100% {
        transform: translateY(100vh) rotate(360deg);
        opacity: 0;
    }
}

/* Notificaciones */
.notification {
    position: fixed;
    top: 20px;
    right: 20px;
    background: var(--gradient-primary);
    color: var(--white);
    padding: 15px 25px;
    border-radius: 10px;
    box-shadow: var(--shadow-strong);
    z-index: 10000;
    transform: translateX(100%);
    transition: transform 0.3s ease;
    font-weight: 600;
    max-width: 300px;
}

.notification.show {
    transform: translateX(0);
}