/* =====================================================
   ECO MEXA — Filo de Obsidiana
   Un proyecto de Normandia Web
   ===================================================== */

:root {
  --obsidian: #0a0a0c;
  --obsidian-2: #111016;
  --stone: #1b1a22;
  --jade: #18a06f;
  --jade-deep: #0d6e4b;
  --gold: #d9a93a;
  --gold-soft: #e9c46a;
  --blood: #b3252a;
  --blood-deep: #7a1418;
  --bone: #ece6d8;
  --bone-dim: #b8b0a0;
  --bone-faint: #837c70;

  --font-display: "Cinzel", Georgia, serif;
  --font-body: "Inter", system-ui, sans-serif;

  --maxw: 1180px;
  --radius: 14px;
  --shadow: 0 18px 50px rgba(0,0,0,.55);
}

* { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }

body {
  font-family: var(--font-body);
  background: var(--obsidian);
  color: var(--bone);
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

h1, h2, h3 { font-family: var(--font-display); font-weight: 700; line-height: 1.12; letter-spacing: .01em; }
a { color: inherit; text-decoration: none; }
img { max-width: 100%; display: block; }
section { position: relative; }

.wrap { width: 100%; max-width: var(--maxw); margin: 0 auto; padding: 0 clamp(20px, 5vw, 48px); }

/* ---- Greca separator ---- */
.greca {
  height: 16px; width: 100%;
  background-image:
    repeating-linear-gradient(90deg, var(--gold) 0 10px, transparent 10px 14px, var(--jade) 14px 24px, transparent 24px 28px, var(--blood) 28px 38px, transparent 38px 42px);
  opacity: .55;
  mask: linear-gradient(90deg, transparent, #000 12%, #000 88%, transparent);
  -webkit-mask: linear-gradient(90deg, transparent, #000 12%, #000 88%, transparent);
}

/* ---- Buttons ---- */
.btn {
  display: inline-flex; align-items: center; gap: .55rem;
  padding: .9rem 1.6rem; border-radius: 999px;
  font-weight: 600; font-size: .98rem; letter-spacing: .02em;
  cursor: pointer; border: 1px solid transparent;
  transition: transform .18s ease, box-shadow .18s ease, background .18s ease, border-color .18s ease;
}
.btn:hover { transform: translateY(-2px); }
.btn-gold { background: linear-gradient(135deg, var(--gold-soft), var(--gold)); color: #2a1d05; box-shadow: 0 10px 30px rgba(217,169,58,.32); }
.btn-gold:hover { box-shadow: 0 14px 40px rgba(217,169,58,.45); }
.btn-ghost { background: rgba(255,255,255,.04); border-color: rgba(236,230,216,.28); color: var(--bone); }
.btn-ghost:hover { border-color: var(--jade); background: rgba(24,160,111,.12); }

/* ---- Nav ---- */
.nav {
  position: fixed; inset: 0 0 auto 0; z-index: 50;
  display: flex; align-items: center; justify-content: space-between;
  padding: .7rem clamp(20px, 5vw, 48px);
  background: linear-gradient(180deg, rgba(10,10,12,.85), rgba(10,10,12,0));
  backdrop-filter: blur(2px);
  transition: background .3s ease, backdrop-filter .3s ease, border-color .3s ease;
  border-bottom: 1px solid transparent;
}
.nav.scrolled { background: rgba(10,10,12,.92); backdrop-filter: blur(10px); border-bottom-color: rgba(217,169,58,.18); }
.nav__brand { display: flex; align-items: center; gap: .6rem; font-family: var(--font-display); font-weight: 700; letter-spacing: .14em; font-size: .92rem; }
.nav__brand img { width: 38px; height: 38px; filter: drop-shadow(0 2px 6px rgba(0,0,0,.6)); }
.nav__links { display: flex; align-items: center; gap: 1.8rem; }
.nav__links a { font-size: .9rem; color: var(--bone-dim); letter-spacing: .03em; transition: color .2s; }
.nav__links a:hover { color: var(--gold-soft); }
.nav__cta { padding: .55rem 1.1rem; font-size: .85rem; }
.nav__toggle { display: none; background: none; border: 0; color: var(--bone); cursor: pointer; }

/* ---- Hero ---- */
.hero { min-height: 100svh; display: flex; align-items: center; overflow: hidden; }
.hero__video, .hero__overlay { position: absolute; inset: 0; width: 100%; height: 100%; }
.hero__video { object-fit: cover; z-index: -2; }
.hero__overlay {
  z-index: -1;
  background:
    radial-gradient(120% 90% at 50% 10%, transparent 0%, rgba(10,10,12,.35) 55%, rgba(10,10,12,.92) 100%),
    linear-gradient(180deg, rgba(10,10,12,.55) 0%, rgba(10,10,12,.35) 40%, rgba(10,10,12,.96) 100%);
}
.hero__inner { padding-top: 6rem; padding-bottom: 4rem; max-width: 820px; }
.hero__logo { width: clamp(120px, 18vw, 190px); margin-bottom: 1.4rem; filter: drop-shadow(0 8px 28px rgba(0,0,0,.7)); animation: rise .9s ease both; }
.eyebrow { display: inline-flex; align-items: center; gap: .6rem; font-size: .76rem; letter-spacing: .32em; text-transform: uppercase; color: var(--gold-soft); margin-bottom: 1rem; }
.eyebrow::before { content: ""; width: 28px; height: 1px; background: var(--gold); }
.hero h1 {
  font-size: clamp(2.8rem, 8vw, 5.6rem); letter-spacing: .12em;
  background: linear-gradient(180deg, #fff 0%, var(--bone) 40%, var(--gold-soft) 100%);
  -webkit-background-clip: text; background-clip: text; color: transparent;
  text-shadow: 0 2px 30px rgba(0,0,0,.5);
}
.hero__tagline { font-family: var(--font-display); font-size: clamp(1.1rem, 2.6vw, 1.6rem); color: var(--bone); margin-top: .6rem; font-weight: 400; }
.hero__sub { color: var(--bone-dim); font-size: clamp(1rem, 2vw, 1.12rem); margin: 1.1rem 0 1.6rem; max-width: 560px; }
.hero__release {
  display: inline-flex; align-items: center; gap: .7rem; flex-wrap: wrap;
  padding: .7rem 1.1rem; border: 1px solid rgba(217,169,58,.3); border-radius: 12px;
  background: rgba(217,169,58,.06); margin-bottom: 1.8rem; font-size: .95rem;
}
.hero__release strong { font-family: var(--font-display); color: var(--gold-soft); letter-spacing: .03em; }
.hero__release .dot { width: 7px; height: 7px; border-radius: 50%; background: var(--jade); box-shadow: 0 0 0 0 rgba(24,160,111,.6); animation: pulse 2s infinite; }
.hero__actions { display: flex; gap: .9rem; flex-wrap: wrap; }
.scroll-hint { position: absolute; bottom: 1.5rem; left: 50%; transform: translateX(-50%); color: var(--bone-faint); font-size: .75rem; letter-spacing: .2em; text-transform: uppercase; display: flex; flex-direction: column; align-items: center; gap: .4rem; }
.scroll-hint span { width: 1px; height: 34px; background: linear-gradient(var(--gold), transparent); animation: scrolldown 1.8s ease-in-out infinite; }

/* ---- Generic section ---- */
.section { padding: clamp(4.5rem, 10vw, 8rem) 0; }
.section--bg { background-size: cover; background-position: center; background-attachment: fixed; }
.section--bg::before { content: ""; position: absolute; inset: 0; background: linear-gradient(180deg, rgba(10,10,12,.86), rgba(10,10,12,.93)); z-index: 0; }
.section--bg .wrap { position: relative; z-index: 1; }
.section__tag { font-size: .78rem; letter-spacing: .28em; text-transform: uppercase; color: var(--jade); margin-bottom: .9rem; }
.section h2 { font-size: clamp(2rem, 5vw, 3.2rem); margin-bottom: 1.2rem; }
.section h2 .accent { color: var(--gold-soft); }
.lead { font-size: clamp(1.05rem, 2.2vw, 1.25rem); color: var(--bone); max-width: 720px; }
.muted { color: var(--bone-dim); }
.center { text-align: center; margin-left: auto; margin-right: auto; }

/* ---- Pillars (proyecto) ---- */
.pillars { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1.4rem; margin-top: 3rem; }
.pillar { background: linear-gradient(160deg, var(--obsidian-2), var(--stone)); border: 1px solid rgba(236,230,216,.08); border-radius: var(--radius); padding: 1.8rem; transition: transform .25s ease, border-color .25s ease; }
.pillar:hover { transform: translateY(-5px); border-color: rgba(217,169,58,.35); }
.pillar__icon { width: 46px; height: 46px; margin-bottom: 1rem; color: var(--gold-soft); }
.pillar h3 { font-size: 1.25rem; margin-bottom: .5rem; color: var(--bone); }
.pillar p { color: var(--bone-dim); font-size: .98rem; }

/* ---- Transparencia ---- */
.transp { border: 1px solid rgba(24,160,111,.3); border-radius: 18px; background: linear-gradient(160deg, rgba(13,110,75,.14), rgba(10,10,12,.6)); padding: clamp(1.8rem, 4vw, 3rem); position: relative; overflow: hidden; }
.transp::after { content: ""; position: absolute; top: 0; right: 0; width: 220px; height: 220px; background: radial-gradient(circle, rgba(24,160,111,.22), transparent 70%); pointer-events: none; }
.transp__badge { display: inline-flex; align-items: center; gap: .5rem; padding: .4rem .9rem; border-radius: 999px; background: rgba(24,160,111,.16); border: 1px solid rgba(24,160,111,.4); color: var(--jade); font-size: .8rem; letter-spacing: .08em; text-transform: uppercase; margin-bottom: 1.2rem; }
.transp__grid { display: grid; grid-template-columns: 1fr 1fr; gap: 1.4rem; margin-top: 1.8rem; }
.transp__item { display: flex; gap: .9rem; align-items: flex-start; }
.transp__item svg { flex: none; width: 26px; height: 26px; color: var(--gold-soft); margin-top: 2px; }
.transp__item h4 { font-family: var(--font-body); font-weight: 700; font-size: 1rem; margin-bottom: .2rem; }
.transp__item p { color: var(--bone-dim); font-size: .94rem; }
.signature { margin-top: 1.8rem; font-style: italic; color: var(--bone-dim); }
.signature strong { color: var(--bone); font-style: normal; }

/* ---- Canción ---- */
.song { display: grid; grid-template-columns: 1.1fr .9fr; gap: 3rem; align-items: center; }
.song__media { aspect-ratio: 16/9; border-radius: var(--radius); overflow: hidden; border: 1px solid rgba(217,169,58,.25); box-shadow: var(--shadow); background: #000; position: relative; }
.song__media iframe { width: 100%; height: 100%; border: 0; }
.song__placeholder { position: absolute; inset: 0; display: flex; flex-direction: column; align-items: center; justify-content: center; gap: .8rem; text-align: center; background: linear-gradient(160deg, var(--stone), var(--obsidian)); color: var(--bone-dim); padding: 2rem; }
.song__placeholder svg { width: 54px; height: 54px; color: var(--gold-soft); opacity: .8; }
.lyric { font-family: var(--font-display); font-size: clamp(1.15rem, 2.4vw, 1.5rem); line-height: 1.7; color: var(--bone); border-left: 2px solid var(--gold); padding-left: 1.2rem; margin: 1.4rem 0 2rem; }
.platforms { display: flex; flex-wrap: wrap; gap: .7rem; }
.platform { display: inline-flex; align-items: center; gap: .5rem; padding: .65rem 1.1rem; border-radius: 10px; border: 1px solid rgba(236,230,216,.16); background: rgba(255,255,255,.03); font-size: .9rem; color: var(--bone-dim); transition: all .2s; }
.platform:hover { border-color: var(--jade); color: var(--bone); background: rgba(24,160,111,.1); }
.platform svg { width: 18px; height: 18px; }

/* ---- Formulario ---- */
.collab { display: grid; grid-template-columns: .9fr 1.1fr; gap: 3rem; align-items: start; }
.collab__intro h2 { margin-bottom: 1rem; }
.collab__list { list-style: none; margin-top: 1.6rem; display: grid; gap: .9rem; }
.collab__list li { display: flex; gap: .7rem; align-items: center; color: var(--bone-dim); }
.collab__list svg { width: 22px; height: 22px; color: var(--jade); flex: none; }
.form { background: linear-gradient(160deg, var(--obsidian-2), var(--stone)); border: 1px solid rgba(236,230,216,.1); border-radius: 18px; padding: clamp(1.6rem, 3.5vw, 2.4rem); box-shadow: var(--shadow); }
.field { margin-bottom: 1.1rem; }
.field label { display: block; font-size: .85rem; color: var(--bone-dim); margin-bottom: .4rem; letter-spacing: .02em; }
.field label .req { color: var(--blood); }
.field input, .field textarea {
  width: 100%; padding: .8rem 1rem; border-radius: 10px;
  background: rgba(10,10,12,.6); border: 1px solid rgba(236,230,216,.16);
  color: var(--bone); font-family: inherit; font-size: .98rem; transition: border-color .2s, box-shadow .2s;
}
.field input:focus, .field textarea:focus { outline: none; border-color: var(--jade); box-shadow: 0 0 0 3px rgba(24,160,111,.16); }
.field textarea { resize: vertical; min-height: 120px; }
.field--hp { position: absolute; left: -9999px; opacity: 0; }
.consent { display: flex; gap: .6rem; align-items: flex-start; font-size: .86rem; color: var(--bone-dim); margin-bottom: 1.3rem; }
.consent input { margin-top: 4px; accent-color: var(--jade); }
.consent a { color: var(--gold-soft); text-decoration: underline; }
.form button[type=submit] { width: 100%; justify-content: center; }
.form__msg { margin-top: 1rem; padding: .9rem 1.1rem; border-radius: 10px; font-size: .92rem; display: none; }
.form__msg.ok { display: block; background: rgba(24,160,111,.14); border: 1px solid rgba(24,160,111,.4); color: #8fe3c0; }
.form__msg.err { display: block; background: rgba(179,37,42,.14); border: 1px solid rgba(179,37,42,.45); color: #f0a3a3; }

/* ---- Footer ---- */
.footer { background: var(--obsidian-2); border-top: 1px solid rgba(217,169,58,.16); padding: 3.5rem 0 2rem; }
.footer__top { display: flex; justify-content: space-between; gap: 2rem; flex-wrap: wrap; }
.footer__brand { display: flex; align-items: center; gap: .8rem; }
.footer__brand img { width: 54px; height: 54px; }
.footer__brand b { font-family: var(--font-display); letter-spacing: .14em; font-size: 1.1rem; }
.footer__brand span { color: var(--bone-faint); font-size: .85rem; }
.socials { display: flex; gap: .8rem; }
.socials a { width: 44px; height: 44px; display: grid; place-items: center; border-radius: 50%; border: 1px solid rgba(236,230,216,.18); color: var(--bone-dim); transition: all .2s; }
.socials a:hover { border-color: var(--gold); color: var(--gold-soft); transform: translateY(-3px); }
.socials svg { width: 20px; height: 20px; }
.footer__bottom { margin-top: 2.5rem; padding-top: 1.6rem; border-top: 1px solid rgba(236,230,216,.08); display: flex; justify-content: space-between; gap: 1rem; flex-wrap: wrap; color: var(--bone-faint); font-size: .82rem; }
.footer__bottom a { color: var(--bone-dim); }
.footer__bottom a:hover { color: var(--gold-soft); }
.footer__legal { margin-top: 1.2rem; color: var(--bone-faint); font-size: .74rem; line-height: 1.5; max-width: 760px; }

/* ---- Modal "Próximamente" ---- */
.modal { position: fixed; inset: 0; z-index: 100; display: grid; place-items: center; padding: 1.4rem; }
.modal[hidden] { display: none; }
.modal__backdrop { position: absolute; inset: 0; background: rgba(5,5,7,.78); backdrop-filter: blur(6px); animation: fadeIn .25s ease; }
.modal__card {
  position: relative; z-index: 1; width: min(420px, 100%);
  background: linear-gradient(165deg, var(--obsidian-2), var(--stone));
  border: 1px solid rgba(217,169,58,.35); border-radius: 20px;
  padding: 2.4rem 2rem 2rem; text-align: center; box-shadow: var(--shadow);
  animation: popIn .32s cubic-bezier(.2,.9,.3,1.2);
}
.modal__x { position: absolute; top: .8rem; right: 1rem; background: none; border: 0; color: var(--bone-faint); font-size: 1.7rem; line-height: 1; cursor: pointer; transition: color .2s; }
.modal__x:hover { color: var(--bone); }
.modal__logo { width: 72px; margin: 0 auto 1rem; filter: drop-shadow(0 6px 18px rgba(0,0,0,.6)); }
.modal__eyebrow { font-size: .76rem; letter-spacing: .3em; text-transform: uppercase; color: var(--jade); margin-bottom: .6rem; }
.modal__title { font-size: 1.5rem; margin-bottom: .8rem; }
.modal__title span { color: var(--gold-soft); }
.modal__text { color: var(--bone-dim); margin-bottom: 1.6rem; }
.modal__text strong { color: var(--bone); }
.modal__card .btn { width: 100%; justify-content: center; }

/* ---- Animations ---- */
@keyframes fadeIn { from { opacity: 0; } to { opacity: 1; } }
@keyframes popIn { from { opacity: 0; transform: translateY(16px) scale(.96); } to { opacity: 1; transform: none; } }
@keyframes rise { from { opacity: 0; transform: translateY(24px); } to { opacity: 1; transform: none; } }
@keyframes pulse { 0% { box-shadow: 0 0 0 0 rgba(24,160,111,.6);} 70% { box-shadow: 0 0 0 9px rgba(24,160,111,0);} 100% { box-shadow: 0 0 0 0 rgba(24,160,111,0);} }
@keyframes scrolldown { 0%,100% { opacity:.3; transform: scaleY(.6);} 50% { opacity:1; transform: scaleY(1);} }
/* Visible por defecto (a prueba de fallos). Solo se oculta para animar cuando
   <html> tiene la clase .anim, que añade el script inline del <head>. */
.reveal { transition: opacity .7s ease, transform .7s ease; }
html.anim .reveal { opacity: 0; transform: translateY(28px); }
html.anim .reveal.in { opacity: 1; transform: none; }

/* ---- Responsive ---- */
@media (max-width: 900px) {
  /* Sin backdrop-filter en el header móvil: si no, se vuelve el bloque
     contenedor del panel fixed y lo encierra en la altura del header. */
  .nav, .nav.scrolled { -webkit-backdrop-filter: none; backdrop-filter: none; background: rgba(10,10,12,.94); }
  .nav__links { position: fixed; inset: 0 0 0 auto; width: min(78vw, 320px); flex-direction: column; justify-content: center; gap: 1.6rem; background: rgba(12,11,16,.98); transform: translateX(100%); transition: transform .3s ease; border-left: 1px solid rgba(217,169,58,.2); z-index: 55; }
  .nav__links.open { transform: none; }
  .nav__links a { font-size: 1.1rem; }
  .nav__toggle { display: block; z-index: 60; }
  .pillars { grid-template-columns: 1fr; }
  .transp__grid { grid-template-columns: 1fr; }
  .song, .collab { grid-template-columns: 1fr; gap: 2rem; }
  .section--bg { background-attachment: scroll; }
}
@media (max-width: 520px) {
  .hero__actions { flex-direction: column; align-items: stretch; }
  .hero__actions .btn { justify-content: center; }
}
@media (prefers-reduced-motion: reduce) {
  * { animation: none !important; scroll-behavior: auto; }
  html.anim .reveal, .reveal { opacity: 1; transform: none; }
}