/* =====================================================
   VARIABLES - 18 AÑOS NICOLÁS · POOL PARTY
   ===================================================== */
:root {
  --aqua: #00C9D4;
  --aqua-light: #7EEDF5;
  --aqua-glow: rgba(0,201,212,0.35);
  --orange: #FF8C42;
  --orange-glow: rgba(255,140,66,0.35);
  --black: #060E10;
  --black-card: #0D1A1C;
  --white: #FFFFFF;
  --text: rgba(255,255,255,0.88);
  --text-muted: rgba(255,255,255,0.48);
  --glass: rgba(0,201,212,0.05);
  --glass-border: rgba(0,201,212,0.18);
  --font-display: 'Anton', sans-serif;
  --font-body: 'Poppins', sans-serif;
}

* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; background: var(--black); }
body { font-family: var(--font-body); color: var(--white); overflow-x: hidden; }
a { text-decoration: none; color: inherit; }
li { list-style: none; }
button { font-family: var(--font-body); border: none; cursor: pointer; }

.ico     { width: 20px; height: 20px; flex-shrink: 0; }
.ico-btn { width: 17px; height: 17px; flex-shrink: 0; }
.ico-lg  { width: 26px; height: 26px; }

#bg-canvas { position: fixed; top:0; left:0; width:100%; height:100%; pointer-events:none; z-index:0; }
section, footer, nav { position: relative; z-index: 1; }
.container { width: 90%; max-width: 960px; margin: 0 auto; text-align: center; }

/* =====================================================
   TYPOGRAPHY
   ===================================================== */
.section-eyebrow {
  font-size: 0.78rem; font-weight: 700; text-transform: uppercase;
  letter-spacing: 4px; color: var(--aqua); margin-bottom: 0.5rem;
}
.section-eyebrow.light { color: var(--aqua-light); }
.section-title {
  font-family: var(--font-display); font-size: 3rem; color: var(--white);
  margin-bottom: 3rem; letter-spacing: 2px; text-transform: uppercase;
}

/* =====================================================
   BUTTONS
   ===================================================== */
.btn-primary {
  display: inline-flex; align-items: center; justify-content: center; gap: 10px;
  padding: 1rem 2.5rem; border-radius: 50px;
  background: linear-gradient(135deg, var(--aqua), var(--aqua-light));
  color: var(--black); font-size: 1rem; font-weight: 700;
  text-transform: uppercase; letter-spacing: 1px;
  transition: all 0.3s; box-shadow: 0 6px 25px var(--aqua-glow); margin-bottom: 1rem;
}
.btn-primary:hover { transform: translateY(-2px); box-shadow: 0 10px 35px var(--aqua-glow); }
.btn-ghost { background: none; color: var(--text-muted); font-size: 0.88rem; text-decoration: underline; transition: color 0.3s; }
.btn-ghost:hover { color: var(--white); }
.btn-hero {
  display: inline-block; padding: 1rem 3rem; border-radius: 50px;
  background: linear-gradient(135deg, var(--orange), #FFB347);
  color: var(--black); font-family: var(--font-display); font-size: 1.1rem;
  letter-spacing: 2px; text-transform: uppercase;
  transition: all 0.3s; box-shadow: 0 6px 25px var(--orange-glow);
}
.btn-hero:hover { transform: translateY(-3px); box-shadow: 0 12px 40px var(--orange-glow); }
.btn-rsvp {
  width: 100%; padding: 1.2rem; border-radius: 50px; border: none;
  background: linear-gradient(135deg, var(--aqua), var(--aqua-light));
  color: var(--black); font-size: 1rem; font-weight: 700;
  text-transform: uppercase; letter-spacing: 1px; cursor: pointer;
  transition: all 0.3s; display: flex; align-items: center; justify-content: center; gap: 10px;
  box-shadow: 0 6px 25px var(--aqua-glow);
}
.btn-rsvp:hover { transform: translateY(-2px); box-shadow: 0 10px 35px var(--aqua-glow); }

/* =====================================================
   OVERLAY
   ===================================================== */
.overlay {
  position: fixed; inset: 0; z-index: 9999;
  display: flex; align-items: center; justify-content: center;
  transition: opacity 0.8s ease, visibility 0.8s;
}
.overlay.hidden { opacity: 0; visibility: hidden; }
.overlay-bg-img {
  position: absolute; inset: 0;
  background: url('hero.jpg') center/cover no-repeat;
  filter: brightness(0.25) saturate(1.5);
}
.overlay-card {
  position: relative; text-align: center; padding: 3.5rem 3rem;
  background: rgba(6,14,16,0.7); border: 1px solid var(--glass-border);
  border-radius: 20px; backdrop-filter: blur(16px);
  box-shadow: 0 0 60px rgba(0,201,212,0.15), 0 20px 60px rgba(0,0,0,0.6);
  max-width: 420px; width: 90%;
}
.overlay-num {
  font-family: var(--font-display); font-size: 8rem; line-height: 1;
  color: transparent; -webkit-text-stroke: 2px var(--aqua);
  letter-spacing: -8px; text-shadow: 0 0 60px var(--aqua-glow);
  margin-bottom: 0.2rem;
}
.overlay-title { font-family: var(--font-display); font-size: 2rem; color: var(--white); text-transform: uppercase; letter-spacing: 3px; margin-bottom: 0.5rem; }
.overlay-title em { color: var(--aqua); font-style: normal; }
.overlay-sub { color: var(--text-muted); margin-bottom: 2rem; font-size: 0.9rem; line-height: 1.7; }

/* =====================================================
   NAV
   ===================================================== */
nav { position: fixed; top:0; left:0; width:100%; z-index:1000; padding: 1.2rem 0; transition: all 0.3s; }
nav.scrolled { background: rgba(6,14,16,0.97); backdrop-filter: blur(10px); border-bottom: 1px solid var(--glass-border); padding: 0.8rem 0; }
.nav-inner { width: 90%; max-width: 1200px; margin: 0 auto; display: flex; justify-content: space-between; align-items: center; }
.nav-logo { font-family: var(--font-display); font-size: 1.4rem; color: var(--white); letter-spacing: 2px; }
.nav-accent { color: var(--aqua); }
.nav-links { display: flex; gap: 2rem; }
.nav-links a { font-size: 0.82rem; font-weight: 600; color: var(--text-muted); text-transform: uppercase; letter-spacing: 1.5px; transition: color 0.3s; }
.nav-links a:hover { color: var(--aqua); }
.hamburger { display: none; flex-direction: column; gap: 5px; background: none; border: none; cursor: pointer; }
.hamburger span { display: block; width: 24px; height: 2px; background: var(--white); border-radius: 2px; }

.mobile-nav { position: fixed; inset: 0; z-index: 2000; display: flex; justify-content: flex-end; pointer-events: none; }
.mobile-nav.open { pointer-events: all; }
.mobile-backdrop { position: absolute; inset: 0; background: rgba(0,0,0,0.7); opacity: 0; transition: opacity 0.3s; }
.mobile-nav.open .mobile-backdrop { opacity: 1; }
.mobile-panel { position: relative; width: 75%; max-width: 280px; height: 100%; background: var(--black-card); border-left: 1px solid var(--glass-border); padding: 3rem 2rem; display: flex; flex-direction: column; gap: 1.5rem; transform: translateX(100%); transition: transform 0.3s ease; }
.mobile-nav.open .mobile-panel { transform: translateX(0); }
.mobile-close { align-self: flex-end; background: none; border: none; color: var(--white); cursor: pointer; }
.mobile-logo { font-family: var(--font-display); font-size: 1.5rem; color: var(--aqua); letter-spacing: 2px; }
.mobile-panel ul { display: flex; flex-direction: column; gap: 1.2rem; }
.mobile-panel a { font-size: 1rem; color: var(--text); text-transform: uppercase; letter-spacing: 1px; font-weight: 500; }

/* =====================================================
   HERO
   ===================================================== */
.hero {
  min-height: 100vh; display: flex; align-items: center; justify-content: center;
  text-align: center; padding: 6rem 2rem 4rem; position: relative; overflow: hidden;
}
.hero-img { position: absolute; inset: 0; background: url('hero.jpg') center/cover no-repeat; }
.hero-overlay { position: absolute; inset: 0; background: linear-gradient(to bottom, rgba(6,14,16,0.55) 0%, rgba(6,14,16,0.75) 60%, var(--black) 100%); }
.hero-content { position: relative; z-index: 2; }
.hero-eyebrow { font-size: 0.85rem; font-weight: 700; letter-spacing: 6px; text-transform: uppercase; color: var(--aqua-light); margin-bottom: 1rem; }
.hero-bignum {
  font-family: var(--font-display); font-size: 16rem; line-height: 0.85;
  color: transparent; -webkit-text-stroke: 2px rgba(0,201,212,0.2);
  letter-spacing: -10px; margin-bottom: -1.5rem; user-select: none;
  text-shadow: 0 0 80px var(--aqua-glow);
}
.hero-title { font-family: var(--font-display); font-size: 5rem; color: var(--white); text-transform: uppercase; letter-spacing: 8px; margin-bottom: 1.5rem; }
.hero-tags { display: flex; flex-wrap: wrap; justify-content: center; gap: 0.8rem; margin-bottom: 1.5rem; }
.hero-tag {
  display: inline-flex; align-items: center; gap: 6px;
  padding: 0.4rem 1.2rem; border-radius: 50px;
  background: rgba(0,0,0,0.4); border: 1px solid rgba(255,255,255,0.15);
  font-size: 0.82rem; font-weight: 600; letter-spacing: 1px; text-transform: uppercase; color: var(--white);
  backdrop-filter: blur(8px);
}
.hero-tag.pool { border-color: var(--aqua); color: var(--aqua); background: rgba(0,201,212,0.1); }
.hero-tag svg { stroke: currentColor; }
.hero-sub { font-size: 0.9rem; color: rgba(255,255,255,0.6); letter-spacing: 2px; margin-bottom: 2.5rem; }

/* =====================================================
   PHOTO STRIP
   ===================================================== */
.photo-strip { width: 100%; height: 280px; overflow: hidden; position: relative; z-index: 1; }
.strip-photo { width: 100%; height: 100%; object-fit: cover; object-position: center 60%; filter: brightness(0.85) saturate(1.3); display: block; }

/* =====================================================
   COUNTDOWN
   ===================================================== */
.countdown-section { padding: 6rem 0; background: var(--black-card); border-top: 1px solid var(--glass-border); border-bottom: 1px solid var(--glass-border); }
.countdown { display: flex; justify-content: center; gap: 1.5rem; flex-wrap: wrap; }
.cd-item { display: flex; flex-direction: column; align-items: center; background: var(--glass); padding: 1.5rem 1.2rem; border-radius: 12px; min-width: 90px; border: 1px solid var(--glass-border); }
.cd-num { font-family: var(--font-display); font-size: 3.5rem; color: var(--aqua); line-height: 1; letter-spacing: 2px; text-shadow: 0 0 20px var(--aqua-glow); }
.cd-label { font-size: 0.7rem; text-transform: uppercase; letter-spacing: 3px; color: var(--text-muted); margin-top: 0.5rem; }
.cd-sep { font-size: 3rem; color: var(--aqua); opacity: 0.3; display: flex; align-items: center; }

/* =====================================================
   EL EVENTO
   ===================================================== */
.evento { padding: 7rem 0 0; background: var(--black); }
.evento-grid { display: flex; flex-wrap: wrap; justify-content: center; gap: 1.5rem; max-width: 900px; margin: 0 auto 5rem; }
.evento-card { flex: 1 1 260px; max-width: 280px; background: var(--glass); border: 1px solid var(--glass-border); border-radius: 12px; padding: 2.5rem 1.5rem; text-align: center; transition: all 0.3s; }
.evento-card:hover { border-color: var(--aqua); box-shadow: 0 0 30px var(--aqua-glow); transform: translateY(-6px); }
.evento-card.featured { border-color: var(--aqua); background: rgba(0,201,212,0.06); }
.evento-icon-wrap { width: 52px; height: 52px; border-radius: 50%; margin: 0 auto 1.2rem; background: rgba(0,201,212,0.1); border: 1px solid var(--glass-border); display: flex; align-items: center; justify-content: center; }
.evento-icon-wrap .ico-lg { stroke: var(--aqua); }
.evento-card h3 { font-family: var(--font-display); font-size: 1.1rem; color: var(--white); text-transform: uppercase; letter-spacing: 1px; margin-bottom: 0.5rem; }
.evento-card p { color: var(--text-muted); font-size: 0.85rem; }
.evento-link { display: inline-flex; align-items: center; gap: 6px; margin-top: 1rem; color: var(--aqua); font-size: 0.8rem; font-weight: 600; text-transform: uppercase; letter-spacing: 1px; transition: color 0.3s; }
.evento-link:hover { color: var(--white); }

/* Foto quinta de noche */
.evento-photo-wrap { position: relative; width: 100%; height: 380px; overflow: hidden; }
.evento-photo { width: 100%; height: 100%; object-fit: cover; object-position: center; filter: brightness(0.6) saturate(1.2); display: block; }
.evento-photo-overlay { position: absolute; inset: 0; display: flex; align-items: center; justify-content: center; background: linear-gradient(to top, rgba(6,14,16,1) 0%, transparent 50%, rgba(6,14,16,0.3) 100%); }
.evento-photo-text { font-family: var(--font-display); font-size: 2.5rem; color: var(--white); text-transform: uppercase; letter-spacing: 6px; text-align: center; text-shadow: 0 0 30px rgba(0,201,212,0.4); }

/* =====================================================
   DRESS CODE
   ===================================================== */
.dresscode { padding: 7rem 0; background: var(--black-card); }
.dresscode-grid { display: grid; grid-template-columns: repeat(3,1fr); gap: 1.5rem; max-width: 860px; margin: 0 auto; }
.dc-card { background: var(--glass); border: 1px solid var(--glass-border); border-radius: 12px; padding: 2.5rem 1.5rem; text-align: center; transition: all 0.3s; }
.dc-card:hover { transform: translateY(-6px); border-color: var(--aqua); }
.dc-card.pool-card { border-color: var(--aqua); background: rgba(0,201,212,0.06); }
.dc-icon-wrap { width: 52px; height: 52px; border-radius: 50%; margin: 0 auto 1.2rem; background: rgba(0,201,212,0.08); border: 1px solid var(--glass-border); display: flex; align-items: center; justify-content: center; }
.dc-icon-wrap .ico-lg { stroke: var(--aqua); }
.dc-card h3 { font-family: var(--font-display); font-size: 1.1rem; color: var(--white); text-transform: uppercase; letter-spacing: 1px; margin-bottom: 0.8rem; }
.dc-card p { color: var(--text-muted); font-size: 0.85rem; line-height: 1.6; margin-bottom: 1.2rem; }
.dc-badge { display: inline-block; padding: 0.3rem 1rem; border-radius: 50px; font-size: 0.7rem; font-weight: 700; letter-spacing: 2px; background: rgba(0,201,212,0.12); color: var(--aqua); border: 1px solid var(--glass-border); text-transform: uppercase; }
.dc-badge.pool-badge { background: rgba(0,201,212,0.2); border-color: var(--aqua); color: var(--aqua-light); }
.dc-badge.prohibido { background: rgba(200,50,50,0.12); color: #ff6060; border-color: rgba(200,50,50,0.3); }

/* =====================================================
   RSVP
   ===================================================== */
.rsvp { padding: 7rem 0; position: relative; }
.rsvp-bg { position: absolute; inset: 0; background: radial-gradient(ellipse at center, rgba(0,201,212,0.05) 0%, var(--black) 70%); }
.rsvp .container { position: relative; z-index: 2; max-width: 600px; }
.rsvp-sub { color: var(--text-muted); margin-bottom: 2.5rem; }
.rsvp-sub strong { color: var(--aqua); }
.rsvp-form { background: var(--glass); padding: 3rem; border-radius: 16px; border: 1px solid var(--glass-border); text-align: left; }
.form-group { display: flex; flex-direction: column; gap: 0.5rem; margin-bottom: 1.5rem; }
.form-group label { font-size: 0.8rem; font-weight: 600; color: var(--text); letter-spacing: 0.5px; text-transform: uppercase; }
.form-group input, .form-group select, .form-group textarea { padding: 0.9rem 1rem; border-radius: 8px; border: 1px solid rgba(255,255,255,0.07); background: rgba(255,255,255,0.03); color: var(--white); font-family: var(--font-body); font-size: 0.95rem; transition: border-color 0.3s, box-shadow 0.3s; resize: none; }
.form-group input::placeholder, .form-group textarea::placeholder { color: rgba(255,255,255,0.2); }
.form-group select option { background: var(--black-card); }
.form-group input:focus, .form-group select:focus, .form-group textarea:focus { outline: none; border-color: var(--aqua); box-shadow: 0 0 0 3px rgba(0,201,212,0.12); }

/* =====================================================
   FOOTER
   ===================================================== */
.footer { position: relative; background: var(--black-card); border-top: 1px solid var(--glass-border); }
.footer-photo-wrap { position: relative; width: 100%; height: 300px; overflow: hidden; }
.footer-photo { width: 100%; height: 100%; object-fit: cover; object-position: center; filter: brightness(0.35) saturate(1.2); display: block; }
.footer-photo-overlay { position: absolute; inset: 0; background: linear-gradient(to top, var(--black-card) 0%, transparent 60%); }
.footer-content { position: relative; z-index: 2; padding: 0 2rem 4rem; margin-top: -100px; text-align: center; }
.footer-bignum { font-family: var(--font-display); font-size: 8rem; line-height: 1; color: transparent; -webkit-text-stroke: 1px rgba(0,201,212,0.2); letter-spacing: -5px; margin-bottom: -1rem; user-select: none; }
.footer-name { font-family: var(--font-display); font-size: 2.5rem; color: var(--white); text-transform: uppercase; letter-spacing: 6px; }
.footer-date { color: var(--text-muted); font-size: 0.85rem; letter-spacing: 4px; margin: 0.8rem 0 1.5rem; }
.footer-frase { font-style: italic; color: var(--text-muted); margin-bottom: 2rem; font-size: 0.95rem; }
.footer-divider { width: 40px; height: 1px; background: var(--aqua); margin: 0 auto 1.5rem; }
.footer-credit { font-size: 0.8rem; color: var(--text-muted); }
.footer-credit strong { color: var(--aqua); }

/* =====================================================
   MUSIC BTN
   ===================================================== */
.music-btn { position: fixed; bottom: 28px; right: 28px; width: 50px; height: 50px; border-radius: 50%; background: var(--black-card); border: 1px solid var(--glass-border); cursor: pointer; z-index: 1000; display: flex; align-items: center; justify-content: center; box-shadow: 0 4px 20px rgba(0,201,212,0.2); transition: all 0.3s; opacity: 0; visibility: hidden; }
.music-btn svg { width: 20px; height: 20px; stroke: var(--aqua); }
.music-btn.visible { opacity: 1; visibility: visible; }
.music-btn:hover { transform: scale(1.1); box-shadow: 0 8px 30px var(--aqua-glow); }

/* =====================================================
   RESPONSIVE
   ===================================================== */
@media (max-width: 768px) {
  .nav-links { display: none; }
  .hamburger { display: flex; }
  .hero-bignum { font-size: 8rem; }
  .hero-title { font-size: 3rem; letter-spacing: 4px; }
  .section-title { font-size: 2rem; }
  .evento-grid { grid-template-columns: 1fr; max-width: 340px; }
  .evento-photo-wrap { height: 240px; }
  .evento-photo-text { font-size: 1.6rem; letter-spacing: 3px; }
  .dresscode-grid { grid-template-columns: 1fr; max-width: 320px; }
  .countdown { gap: 0.8rem; }
  .cd-sep { display: none; }
  .cd-item { min-width: 70px; padding: 1rem 0.8rem; }
  .cd-num { font-size: 2.5rem; }
  .rsvp-form { padding: 1.8rem; }
  .photo-strip { height: 180px; }
  .footer-photo-wrap { height: 220px; }
  .footer-bignum { font-size: 5rem; }
  .overlay-card { padding: 2rem 1.5rem; }
  .overlay-num { font-size: 5rem; }
}