/* ==========================================================================
   DESIGN SYSTEM - 15 AÑOS UMA (DISCO)
   ========================================================================== */

:root {
    /* Color Palette - Disco / Nightclub */
    --bg-dark: #07070a;
    --bg-light: #151522;
    --neon-purple: #c042ff; /* Changed from blue to purple to match the photo */
    --neon-pink: #ff00ff;
    --neon-silver: #ffffff; /* Replaced gold with silver */
    --silver: #e0e0e0;
    --silver-dark: #b5b5b5;
    --text-color: #f0f0f0;
    --text-muted: #a0a0b0;
    
    /* Typography */
    --font-display: 'Playfair Display', serif; /* Changed to an elegant serif */
    --font-body: 'Montserrat', sans-serif;
    
    /* Utilities */
    --glow: 0 0 10px rgba(192, 66, 255, 0.5), 0 0 20px rgba(192, 66, 255, 0.3);
    --glow-silver: 0 0 10px rgba(255, 255, 255, 0.8), 0 0 20px rgba(255, 255, 255, 0.4);
    --border-radius-lg: 16px;
    --transition: all 0.3s ease;
}

/* ================== RESET ================== */
* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
    font-family: var(--font-body);
    color: var(--text-color);
    background-color: var(--bg-dark);
    line-height: 1.6;
    overflow-x: hidden;
}

/* ================== ANIMACIONES ================== */
@keyframes float {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-10px); }
}
@keyframes pulse {
    0%, 100% { transform: scale(1); filter: drop-shadow(0 0 5px var(--neon-purple)); }
    50% { transform: scale(1.1); filter: drop-shadow(0 0 15px var(--neon-purple)); }
}
@keyframes spinSlow {
    from { transform: rotate(0deg); }
    to { transform: rotate(360deg); }
}

.anim-float { animation: float 4s ease-in-out infinite; }
.anim-pulse { animation: pulse 3s ease-in-out infinite; }
.anim-spin { animation: spinSlow 8s linear infinite; }

/* ================== OVERLAY ================== */
.music-overlay {
    position: fixed; top: 0; left: 0; width: 100vw; height: 100vh;
    background-color: rgba(7,7,10,0.95);
    z-index: 9999; display: flex; justify-content: center; align-items: center;
    transition: opacity 0.8s, visibility 0.8s;
}
.music-overlay.hidden { opacity: 0; visibility: hidden; }
.overlay-content {
    text-align: center; padding: 30px; 
    background: rgba(255,255,255,0.05); /* Cristal translucido */
    backdrop-filter: blur(15px); /* Efecto vidrio */
    border: 1px solid rgba(255,255,255,0.4); border-radius: 4px;
    box-shadow: 0 20px 50px rgba(0,0,0,0.8), inset 0 0 10px rgba(255,255,255,0.1);
    position: relative; max-width: 90%; width: 340px;
}
/* Hilo de plata interior (marco delgado) */
.overlay-content::before {
    content: ''; position: absolute; top: 10px; left: 10px; right: 10px; bottom: 10px;
    border: 1px solid rgba(255,255,255,0.3); pointer-events: none; z-index: 1;
}
.envelope-inner { position: relative; z-index: 2; padding: 20px; }
.overlay-title {
    font-family: var(--font-display); font-size: 3rem; 
    color: var(--neon-silver);
    text-shadow: var(--glow-silver); margin-bottom: 10px;
    font-style: italic;
}
.btn-primary {
    background: transparent; border: 2px solid var(--neon-purple); color: var(--neon-purple);
    padding: 12px 30px; border-radius: 30px; font-weight: 600; text-transform: uppercase;
    letter-spacing: 2px; cursor: pointer; transition: var(--transition);
    text-shadow: 0 0 5px var(--neon-purple); box-shadow: inset 0 0 10px rgba(192,66,255,0.2), 0 0 10px rgba(192,66,255,0.2);
    display: inline-flex; align-items: center; gap: 10px; margin-top: 15px;
}
.btn-primary:hover { background: var(--neon-purple); color: var(--white); }
.btn-text { margin-top: 20px; display: block; color: #555; background: none; border: none; cursor: pointer; text-decoration: underline; margin-inline: auto; font-weight: 600;}

/* ================== NAV ================== */
#navbar {
    position: fixed; top: 0; width: 100%; padding: 20px 0; z-index: 1000;
    transition: var(--transition);
}
#navbar.scrolled {
    background: rgba(7, 7, 10, 0.8); backdrop-filter: blur(10px);
    border-bottom: 1px solid rgba(255,255,255,0.05); padding: 15px 0;
}
.nav-inner { max-width: 1000px; margin: 0 auto; display: flex; justify-content: space-between; align-items: center; padding: 0 20px; }
.nav-logo { font-family: var(--font-display); font-size: 24px; color: var(--neon-silver); text-shadow: var(--glow-silver); font-style: italic;}
.nav-links { display: flex; gap: 20px; list-style: none; }
.nav-links a { color: var(--silver); text-decoration: none; font-size: 13px; text-transform: uppercase; letter-spacing: 2px; transition: var(--transition); }
.nav-links a:hover { color: var(--neon-purple); text-shadow: var(--glow); }
.hamburger { display: none; background: none; border: none; cursor: pointer; flex-direction: column; gap: 5px; }
.hamburger span { width: 25px; height: 2px; background: var(--silver); }

@media (max-width: 768px) {
    .nav-links { display: none; }
    .hamburger { display: flex; }
    
    /* Responsive envelope */
    .overlay-content { padding: 20px; width: 90%; max-width: 320px; }
    .overlay-title { font-size: 2.2rem; }
    
    /* Responsive hero text */
    .hero-name { font-size: 60px; margin-bottom: 15px; }
    .hero-date { font-size: 14px; letter-spacing: 2px; }
    
    /* Responsive countdown */
    .countdown { gap: 10px; flex-wrap: wrap; }
    .cd-item { width: 70px; padding: 10px; }
    .cd-num { font-size: 22px; }
    .cd-sep { display: none; } /* Hide colon separators on small screens to avoid weird wrapping */
    
    /* General spacing */
    section { padding: 50px 0; }
    .section-title { font-size: 28px; margin-bottom: 30px; }
    .evento-grid { grid-template-columns: 1fr; }
    .rsvp-form { padding: 25px 15px; }
}

/* Mobile Nav */
.mobile-nav { position: fixed; top: 0; left: 0; width: 100%; height: 100vh; z-index: 2000; pointer-events: none; }
.mobile-nav.open { pointer-events: auto; }
.mobile-nav-backdrop { position: absolute; top: 0; left: 0; width: 100%; height: 100%; background: rgba(0,0,0,0.8); backdrop-filter: blur(5px); opacity: 0; transition: opacity 0.4s; }
.mobile-nav.open .mobile-nav-backdrop { opacity: 1; }
.mobile-nav-panel { position: absolute; top: 0; right: -300px; width: 260px; height: 100%; background: var(--bg-light); border-left: 1px solid rgba(255,255,255,0.1); padding: 60px 30px; transition: right 0.4s; }
.mobile-nav.open .mobile-nav-panel { right: 0; }
.mobile-close { position: absolute; top: 20px; right: 20px; background: none; border: none; color: var(--silver); cursor: pointer; font-size: 24px;}
.mobile-nav-panel ul { list-style: none; display: flex; flex-direction: column; gap: 20px; margin-top: 40px;}
.mobile-nav-panel a { color: var(--silver); text-decoration: none; font-size: 14px; text-transform: uppercase; letter-spacing: 2px; }

/* ================== LAYOUT ================== */
.container { max-width: 800px; margin: 0 auto; padding: 0 20px; }
section { padding: 80px 0; text-align: center; }
.section-eyebrow { font-size: 12px; text-transform: uppercase; letter-spacing: 4px; color: var(--neon-purple); margin-bottom: 10px; }
.section-title { font-family: var(--font-display); font-size: 36px; color: var(--white); margin-bottom: 40px; }

/* ================== HERO ================== */
.hero { height: 100vh; display: flex; align-items: center; justify-content: center; position: relative; padding: 0; overflow: hidden; }
.hero-bg { position: absolute; top: 0; left: 0; width: 100%; height: 100%; object-fit: cover; opacity: 0.6; }
.hero-overlay { position: absolute; top: 0; left: 0; width: 100%; height: 100%; background: linear-gradient(to bottom, rgba(7,7,10,0.2) 0%, rgba(7,7,10,1) 100%); }
.hero-content { position: relative; z-index: 3; text-align: center; }
.hero-eyebrow { font-size: 14px; letter-spacing: 6px; text-transform: uppercase; color: var(--silver); margin-bottom: 15px; }
.hero-name { font-family: var(--font-display); font-size: 100px; line-height: 1; margin-bottom: 20px; 
    color: var(--neon-silver);
    text-shadow: var(--glow-silver);
    font-style: italic;
}
.hero-date { font-size: 18px; color: var(--silver); letter-spacing: 4px; margin-bottom: 40px; }

/* ================== COUNTDOWN ================== */
.countdown { display: flex; justify-content: center; gap: 15px; margin-top: 20px; }
.cd-item { background: rgba(255,255,255,0.03); border: 1px solid rgba(255,255,255,0.1); border-radius: 10px; padding: 15px; width: 80px; backdrop-filter: blur(5px); }
.cd-num { display: block; font-size: 28px; font-weight: 700; color: var(--neon-purple); text-shadow: 0 0 10px rgba(192,66,255,0.3); }
.cd-label { display: block; font-size: 10px; text-transform: uppercase; color: var(--text-muted); letter-spacing: 1px; margin-top: 5px; }
.cd-sep { font-size: 28px; color: var(--neon-purple); align-self: center; }

/* ================== CARDS ================== */
.evento-grid { display: grid; gap: 20px; grid-template-columns: repeat(auto-fit, minmax(250px, 1fr)); }
.evento-card { background: rgba(255,255,255,0.02); border: 1px solid rgba(255,255,255,0.05); border-radius: var(--border-radius-lg); padding: 40px 20px; transition: var(--transition); backdrop-filter: blur(5px); }
.evento-card:hover { transform: translateY(-5px); border-color: rgba(192,66,255,0.3); box-shadow: 0 10px 30px rgba(0,0,0,0.5); }
.evento-icon { color: var(--neon-silver); margin-bottom: 20px; display: inline-block;}
.evento-card h3 { font-size: 18px; color: var(--white); margin-bottom: 10px; letter-spacing: 1px; text-transform: uppercase; }
.evento-card p { color: var(--text-muted); font-size: 14px; margin-bottom: 5px; }

.btn-link { display: inline-flex; align-items: center; gap: 8px; margin-top: 20px; color: var(--neon-purple); text-decoration: none; font-size: 12px; text-transform: uppercase; letter-spacing: 1px; border: 1px solid var(--neon-purple); padding: 8px 20px; border-radius: 20px; transition: var(--transition); }
.btn-link:hover { background: var(--neon-purple); color: var(--white); }

/* ================== RSVP ================== */
.rsvp-form { background: rgba(255,255,255,0.02); padding: 40px; border-radius: var(--border-radius-lg); border: 1px solid rgba(255,255,255,0.05); text-align: left; }
.form-group { margin-bottom: 20px; }
.form-group label { display: block; font-size: 12px; text-transform: uppercase; letter-spacing: 2px; color: var(--silver); margin-bottom: 8px; }
.form-group input, .form-group select { width: 100%; padding: 12px; background: rgba(0,0,0,0.5); border: 1px solid rgba(255,255,255,0.1); border-radius: 8px; color: var(--white); font-family: var(--font-body); transition: var(--transition); }
.form-group input:focus, .form-group select:focus { outline: none; border-color: var(--neon-purple); box-shadow: 0 0 10px rgba(192,66,255,0.2); }
.rsvp-btn { width: 100%; background: transparent; border: 2px solid var(--neon-silver); color: var(--neon-silver); padding: 15px; border-radius: 30px; font-size: 14px; text-transform: uppercase; letter-spacing: 2px; font-weight: 600; cursor: pointer; transition: var(--transition); display: flex; justify-content: center; align-items: center; gap: 10px; margin-top: 20px; text-shadow: 0 0 5px rgba(255,255,255,0.5); box-shadow: inset 0 0 10px rgba(255,255,255,0.1); }
.rsvp-btn:hover { background: var(--neon-silver); color: var(--bg-dark); box-shadow: 0 0 20px rgba(255,255,255,0.4); text-shadow: none; }

/* ================== FOOTER ================== */
.footer { padding: 40px 20px; text-align: center; border-top: 1px solid rgba(255,255,255,0.05); }
.footer-name { font-family: var(--font-display); font-size: 24px; color: var(--silver); margin-bottom: 10px; }
.footer-credit { font-size: 12px; color: var(--text-muted); margin-top: 20px; }

/* ================== GALERIA ================== */
.carousel-container { position: relative; width: 100%; max-width: 600px; margin: 0 auto; overflow: hidden; border-radius: var(--border-radius-lg); box-shadow: 0 10px 30px rgba(0,0,0,0.5); border: 1px solid rgba(255,255,255,0.1); }
.carousel-track { display: flex; transition: transform 0.5s ease-in-out; }
.carousel-img { width: 100%; flex-shrink: 0; object-fit: cover; aspect-ratio: 4/3; }
.carousel-btn { position: absolute; top: 50%; transform: translateY(-50%); background: rgba(0,0,0,0.5); border: 1px solid rgba(255,255,255,0.2); color: var(--white); width: 40px; height: 40px; border-radius: 50%; display: flex; justify-content: center; align-items: center; cursor: pointer; transition: var(--transition); backdrop-filter: blur(5px); z-index: 2; }
.carousel-btn:hover { background: var(--neon-purple); border-color: var(--neon-purple); }
.carousel-btn.prev { left: 10px; }
.carousel-btn.next { right: 10px; }

/* ================== TRIVIA ================== */
.trivia-container { background: rgba(255,255,255,0.02); border: 1px solid rgba(255,255,255,0.05); border-radius: var(--border-radius-lg); padding: 40px 20px; max-width: 600px; margin: 0 auto; text-align: left; }
.trivia-question { font-size: 16px; color: var(--white); margin-bottom: 15px; font-weight: 600; display: none; }
.trivia-question.active { display: block; }
.trivia-options { display: flex; flex-direction: column; gap: 10px; }
.trivia-btn { background: rgba(0,0,0,0.4); border: 1px solid rgba(255,255,255,0.2); padding: 12px; border-radius: 8px; color: var(--silver); font-size: 14px; cursor: pointer; transition: var(--transition); text-align: left; }
.trivia-btn:hover:not(:disabled) { border-color: var(--neon-purple); box-shadow: 0 0 10px rgba(192,66,255,0.2); color: var(--white); }
.trivia-btn.correct { background: rgba(0, 255, 0, 0.15); border-color: #00ff00; color: #fff; }
.trivia-btn.incorrect { background: rgba(255, 0, 0, 0.15); border-color: #ff0000; color: #fff; }
.trivia-btn:disabled { cursor: not-allowed; }
.trivia-feedback { font-size: 14px; margin-top: 15px; text-align: center; min-height: 20px; font-weight: 600; }
.trivia-next { background: transparent; border: 1px solid var(--neon-silver); color: var(--neon-silver); padding: 10px 20px; border-radius: 20px; cursor: pointer; display: none; margin: 20px auto 0; font-size: 12px; text-transform: uppercase; transition: var(--transition); }
.trivia-next:hover { background: var(--neon-silver); color: var(--bg-dark); }
.trivia-score-screen { display: none; text-align: center; }
.trivia-score-title { font-family: var(--font-display); font-size: 40px; color: var(--neon-silver); text-shadow: var(--glow-silver); margin-bottom: 10px; }

/* ================== FONDOS ================== */
.bg-glitter {
    background-image: url('glitter-bg.jpg');
    background-size: cover;
    background-position: center;
    background-attachment: fixed;
    position: relative;
}
.bg-glitter::before {
    content: ''; position: absolute; top: 0; left: 0; width: 100%; height: 100%;
    background: rgba(7, 7, 10, 0.65); /* Overlay oscuro para que resalte el texto */
    z-index: 0; pointer-events: none;
}
.bg-glitter > .container { position: relative; z-index: 1; }

/* MUSIC TOGGLE */
.music-toggle-btn { position: fixed; bottom: 20px; right: 20px; background: rgba(0,0,0,0.5); border: 1px solid var(--neon-purple); color: var(--neon-purple); box-shadow: 0 0 10px rgba(192,66,255,0.3); width: 50px; height: 50px; border-radius: 50%; display: flex; justify-content: center; align-items: center; cursor: pointer; z-index: 1000; opacity: 0; pointer-events: none; transition: var(--transition); backdrop-filter: blur(5px); }
.music-toggle-btn.visible { opacity: 1; pointer-events: auto; }
@keyframes spinVinyl { from { transform: rotate(0deg); } to { transform: rotate(360deg); } }
.vinyl-spin { animation: spinVinyl 3s linear infinite; transform-origin: center; }