/* =========================================
   ADN VISUAL: GRADUACIÓN GALA
   ========================================= */
@import url('https://fonts.googleapis.com/css2?family=Playfair+Display:ital,wght@0,600;1,600&family=Lato:wght@300;400;700&display=swap');

:root {
    --primary: #D4AF37;       /* Dorado Metálico */
    --primary-dark: #B5952F;
    --dark: #0A192F;          /* Azul Marino Profundo */
    --white: #FFFFFF;
    --bg-cream: #F8F9FA;      /* Gris perla casi blanco */
    
    --font-serif: 'Playfair Display', serif; 
    --font-body: 'Lato', sans-serif;         
}

* { box-sizing: border-box; margin: 0; padding: 0; }

body {
    font-family: var(--font-body);
    background-color: var(--bg-cream);
    color: #333333;
    text-align: center;
    overflow-x: hidden;
}

/* --- REPRODUCTOR DE MÚSICA (Elegante/Sobrio) --- */
.music-control {
    position: fixed;
    bottom: 20px;
    right: 20px;
    width: 50px;
    height: 50px;
    background: var(--dark);
    color: var(--primary);
    border: 1px solid var(--primary);
    border-radius: 4px; /* Cuadrado para mayor formalidad */
    display: flex;
    justify-content: center;
    align-items: center;
    font-size: 24px;
    z-index: 1000;
    box-shadow: 0 4px 10px rgba(0,0,0,0.15);
    cursor: pointer;
    transition: 0.3s;
}
.music-control:hover { background: var(--primary); color: var(--dark); }

/* --- PANTALLA DE BIENVENIDA (MODAL) --- */
.welcome-overlay {
    position: fixed; top: 0; left: 0; width: 100%; height: 100%;
    background-color: var(--dark);
    color: var(--white);
    z-index: 9999;
    display: flex; justify-content: center; align-items: center; flex-direction: column;
    transition: opacity 1s ease, visibility 1s ease;
}
.welcome-overlay.hidden { opacity: 0; visibility: hidden; pointer-events: none; }
.welcome-content { padding: 20px; animation: fadeIn 1.5s ease; }
.welcome-text { text-transform: uppercase; letter-spacing: 3px; font-size: 0.8rem; margin-bottom: 15px; color: var(--primary); }
.welcome-names { font-family: var(--font-serif); font-size: 3.5rem; color: var(--white); margin-bottom: 30px; letter-spacing: 1px; }
.envelope-seal { font-size: 3rem; color: var(--primary); margin-bottom: 30px; }
.btn-open { background: var(--primary); border: none; color: var(--dark); padding: 15px 40px; border-radius: 4px; font-family: var(--font-body); text-transform: uppercase; letter-spacing: 2px; font-weight: 700; cursor: pointer; transition: 0.3s; }
.btn-open:hover { background: var(--white); }
body.no-scroll { overflow: hidden; }

/* --- HERO --- */
.hero { height: 100vh; background-image: url('img/portada-graduacion.jpg'); background-size: cover; background-position: center; position: relative; z-index: 1; display: flex; align-items: center; justify-content: center; }
.overlay { position: absolute; top: 0; left: 0; width: 100%; height: 100%; background: rgba(10, 25, 47, 0.6); }
.hero-content { position: relative; z-index: 2; padding: 20px; }
.intro { font-family: var(--font-body); letter-spacing: 4px; text-transform: uppercase; margin-bottom: 10px; color: var(--primary); }
.names { font-family: var(--font-serif); font-size: 4rem; color: var(--white); margin-bottom: 20px; }
.date-badge { border-top: 1px solid var(--primary); border-bottom: 1px solid var(--primary); display: inline-block; padding: 10px 20px; font-family: var(--font-serif); font-size: 1.2rem; color: var(--white); }
.arrow-down { margin-top: 30px; font-size: 2rem; color: var(--primary); }

/* --- SECCIONES GENERALES --- */
section { padding: 60px 20px; position: relative; z-index: 2; }
h2, h3 { font-family: var(--font-serif); color: var(--dark); margin-bottom: 30px; display: inline-block; border-bottom: 2px solid var(--primary); padding-bottom: 5px; }

/* --- CUENTA REGRESIVA --- */
.timer { display: flex; justify-content: center; gap: 15px; }
.time-box { background: var(--white); padding: 15px 10px; min-width: 80px; border-radius: 4px; border: 1px solid #E0E0E0; box-shadow: 0 4px 15px rgba(0,0,0,0.02); display: flex; flex-direction: column; align-items: center; }
.time-box span { font-size: 1.8rem; font-weight: 700; color: var(--dark); font-family: var(--font-serif); }
.time-box p { font-size: 0.8rem; text-transform: uppercase; color: var(--primary-dark); font-weight: 700; }
.message { margin-top: 25px; font-size: 1rem; letter-spacing: 3px; text-transform: uppercase; color: #666; font-family: var(--font-body); }

/* --- TARJETAS (Location) --- */
.card { background: var(--white); padding: 30px; margin: 20px auto; max-width: 400px; border-radius: 4px; border: 1px solid #E0E0E0; box-shadow: 0 4px 15px rgba(0,0,0,0.03); }
.icon-gold { font-size: 3rem; color: var(--dark); margin-bottom: 15px; }
.divider { height: 1px; background: #E0E0E0; margin: 30px auto; width: 40%; }
.address { color: #666; margin-bottom: 15px; }

/* --- BOTONES GLOBALES --- */
.btn-gold, .btn-small { display: inline-block; background: var(--dark); color: var(--white); padding: 12px 25px; border-radius: 4px; text-decoration: none; font-weight: 700; text-transform: uppercase; font-size: 0.85rem; transition: 0.3s; border: none; cursor: pointer; letter-spacing: 1px; }
.btn-gold:hover, .btn-small:hover { background: var(--primary); color: var(--dark); }

/* --- CÓDIGO DE VESTIMENTA --- */
.dress-icon { font-size: 3rem; color: var(--dark); margin-bottom: 15px; }
.dress-type { font-size: 1.2rem; font-weight: 700; margin-bottom: 5px; color: var(--dark); }
.dress-alert { display: inline-block; margin-top: 15px; padding: 8px 20px; border: 1px solid var(--dark); color: var(--dark); border-radius: 4px; font-size: 0.85rem; font-weight: 700; text-transform: uppercase; }

/* --- MESA DE REGALOS --- */
.gift-options { display: flex; justify-content: center; gap: 15px; flex-wrap: wrap; margin-top: 30px; }
.gift-box { background: var(--white); padding: 25px; border-radius: 4px; width: 45%; min-width: 250px; border: 1px solid #E0E0E0; display: flex; flex-direction: column; align-items: center; }
.gift-box i { font-size: 2.5rem; color: var(--dark); margin-bottom: 15px; }

/* --- RSVP FORM (Limpio) --- */
.container-narrow { max-width: 90%; margin: 0 auto; width: 500px; }
.rsvp-deadline { margin-bottom: 25px; font-style: italic; color: #666; }
.rsvp-form { background: var(--white); padding: 30px 20px; border-radius: 4px; border: 1px solid #E0E0E0; text-align: left; }
.form-group { margin-bottom: 20px; }
.form-group label { display: block; margin-bottom: 8px; font-weight: 700; font-size: 0.85rem; color: var(--dark); text-transform: uppercase; letter-spacing: 1px; }
input[type="text"], select, textarea { width: 100%; padding: 12px 15px; border: 1px solid #CCC; border-radius: 4px; font-family: var(--font-body); font-size: 1rem; background: #FFF; transition: 0.3s; }
input:focus, select:focus, textarea:focus { outline: none; border-color: var(--primary); box-shadow: 0 0 0 2px rgba(212, 175, 55, 0.2); }
.radio-group { display: flex; gap: 10px; }
.radio-option { flex: 1; position: relative; }
.radio-option input { position: absolute; opacity: 0; }
.radio-option span { display: block; padding: 12px; text-align: center; background: #F4F7F6; border-radius: 4px; cursor: pointer; font-weight: 700; border: 1px solid #E0E0E0; transition: 0.3s; color: #666; }
.radio-option input:checked + span { background: var(--dark); color: var(--white); border-color: var(--dark); }
.btn-block { width: 100%; margin-top: 10px; padding: 15px; font-size: 1rem; }

/* --- FOOTER --- */
footer { padding: 30px; background: var(--dark); font-size: 0.8rem; color: #aaa; }

/* --- ANIMACIONES --- */
@keyframes fadeIn { from { opacity: 0; transform: translateY(20px); } to { opacity: 1; transform: translateY(0); } }

/* --- RESPONSIVE --- */
@media (max-width: 400px) { .names { font-size: 3rem; } .welcome-names { font-size: 2.8rem; } .time-box { min-width: 65px; padding: 10px; } }