/* Sky Composites Ecuador S.A.S. — hoja de estilos principal */

:root {
  --navy: #0D2A3E;
  --blue: #1B6FA0;
  --blue-bright: #2B86BF;
  --cyan: #9EDCF5;
  --ink: #0D2A3E;
  --text: #3D4D59;
  --muted: #5A6975;
  --line: #D3E3EB;
  --line-dark: #264C66;
  --bg: #F4F8FA;
  --bg-alt: #E4F0F6;
  --card: #FFFFFF;
  --shell: min(1320px, 100% - 10vw);
  --radius: 20px;
  --serif: Fraunces, Georgia, "Times New Roman", serif;
  --sans: "IBM Plex Sans", "Helvetica Neue", Arial, sans-serif;
  --mono: "IBM Plex Mono", ui-monospace, "SFMono-Regular", monospace;
}

*, *::before, *::after { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: var(--sans);
  font-size: 17px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

img, svg { max-width: 100%; }
a { color: var(--blue); text-decoration: none; }
a:hover { color: var(--blue-bright); }
:focus-visible { outline: 3px solid var(--blue-bright); outline-offset: 2px; }

h1, h2, h3 { font-family: var(--serif); font-weight: 400; letter-spacing: -0.02em; margin: 0; }
h1 { font-size: clamp(2.4rem, 6vw, 5.2rem); line-height: 1; }
h2 { font-size: clamp(1.9rem, 4vw, 3.4rem); line-height: 1.06; }
h3 { font-size: 1.45rem; font-weight: 600; }
p { margin: 0; }

.shell { width: var(--shell); margin-inline: auto; }
.eyebrow { font-family: var(--mono); font-size: 0.8rem; letter-spacing: 0.12em; color: var(--blue-bright); }
.eyebrow--light { color: var(--cyan); }
.lead { font-size: 1.12rem; color: var(--text); }
.muted { color: var(--muted); font-size: 0.9rem; }

section { padding: clamp(64px, 9vw, 112px) 0; scroll-margin-top: 84px; }
.section--dark { background: var(--navy); color: var(--bg); }
.section--dark .lead, .section--dark p { color: #B4CBDA; }
.section--blue { background: var(--blue); color: var(--bg); }
.section--tint { background: var(--bg-alt); }
.section-head { display: flex; flex-wrap: wrap; gap: 24px 48px; justify-content: space-between; align-items: flex-end; margin-bottom: 44px; }
.section-head > div { display: flex; flex-direction: column; gap: 14px; max-width: 760px; }

/* Botones */
.btn {
  display: inline-flex; align-items: center; justify-content: center;
  min-height: 54px; padding: 0 30px; border-radius: 999px;
  font-weight: 600; font-size: 1rem; border: 1px solid transparent;
  transition: transform 0.2s ease, background 0.2s ease, color 0.2s ease;
}
.btn:hover { transform: translateY(-2px); }
.btn--primary { background: var(--blue-bright); color: #fff; }
.btn--primary:hover { background: var(--blue); color: #fff; }
.btn--ghost { border-color: currentColor; color: inherit; }
.btn--ghost:hover { background: rgba(255,255,255,0.1); color: inherit; }
.btn--sm { min-height: 44px; padding: 0 20px; font-size: 0.92rem; }

/* Cabecera */
.site-header {
  position: sticky; top: 0; z-index: 60;
  background: rgba(244,248,250,0.93);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--line);
}
.site-header .shell { display: flex; align-items: center; justify-content: space-between; gap: 20px; min-height: 84px; }
.brand { display: flex; align-items: center; gap: 12px; }
.brand img { height: 52px; width: auto; }
.brand b { font-family: var(--serif); font-size: 1.25rem; font-weight: 600; display: block; line-height: 1.1; }
.brand span { font-family: var(--mono); font-size: 0.68rem; letter-spacing: 0.08em; color: var(--muted); }
.main-nav { display: flex; align-items: center; gap: 22px; font-size: 0.95rem; font-weight: 500; }
.main-nav a { color: var(--ink); }
.header-actions { display: flex; align-items: center; gap: 14px; }
.lang { display: flex; padding: 4px; border: 1px solid var(--line); border-radius: 999px; gap: 2px; }
.lang a { padding: 6px 12px; border-radius: 999px; font-size: 0.8rem; font-weight: 600; color: var(--muted); }
.lang a[aria-current="true"] { background: var(--navy); color: #fff; }
.nav-toggle { display: none; width: 46px; height: 46px; border: 1px solid var(--line); border-radius: 12px; background: transparent; cursor: pointer; }

/* Hero */
.hero { position: relative; min-height: min(760px, 88vh); display: flex; align-items: center; color: var(--bg); background: var(--navy); overflow: hidden; padding: 96px 0; }
.hero-bg { position: absolute; inset: 0; }
.hero-bg img { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; opacity: 0; transition: opacity 1.6s ease; animation: kenburns 16s ease-in-out infinite alternate; }
.hero-bg img.is-active { opacity: 1; }
.hero::after { content: ""; position: absolute; inset: 0; background: linear-gradient(100deg, rgba(13,42,62,0.94) 0%, rgba(13,42,62,0.7) 55%, rgba(13,42,62,0.25) 100%); }
.hero .shell { position: relative; z-index: 2; display: flex; flex-direction: column; gap: 30px; }
.hero-slides { position: relative; min-height: clamp(150px, 22vw, 260px); }
.hero-slide { position: absolute; inset: 0; display: flex; flex-direction: column; justify-content: flex-end; gap: 16px; opacity: 0; transform: translateY(28px); transition: opacity 0.9s ease, transform 0.9s cubic-bezier(.2,.7,.2,1); pointer-events: none; }
.hero-slide.is-active { opacity: 1; transform: none; pointer-events: auto; }
.hero-slide h1 { max-width: 15ch; }
.hero-slide h1 em { font-style: normal; color: var(--cyan); }
.hero p { max-width: 54ch; color: #D6ECF7; font-size: 1.15rem; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 14px; }
.hero-dots { display: flex; gap: 12px; margin-top: 6px; }
.hero-dots button { width: 72px; height: 22px; padding: 0; border: 0; background: transparent; cursor: pointer; }
.hero-dots span { display: block; height: 3px; border-radius: 2px; background: rgba(244,248,250,0.32); overflow: hidden; }
.hero-dots i { display: block; height: 100%; width: 0; background: var(--cyan); }
.hero-dots button[aria-current="true"] i { animation: progress 6s linear forwards; }

@keyframes kenburns { from { transform: scale(1); } to { transform: scale(1.09); } }
@keyframes progress { from { width: 0; } to { width: 100%; } }

/* Quiénes somos */
.about { display: grid; grid-template-columns: 1fr 1fr; gap: clamp(32px, 5vw, 72px); align-items: center; }
.about-copy { display: flex; flex-direction: column; gap: 22px; }
.about-stats { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; padding-top: 22px; border-top: 1px solid var(--line); }
.about-stats b { font-family: var(--serif); font-size: 2.2rem; font-weight: 400; color: var(--blue); display: block; }
.about-media { position: relative; }
.about-media .photo { aspect-ratio: 4 / 5; border-radius: 24px; }
.quote-card { position: absolute; left: -6%; bottom: -6%; width: min(320px, 78%); background: var(--navy); color: var(--bg); border-radius: var(--radius); padding: 26px; box-shadow: 0 24px 48px rgba(13,42,62,0.25); }
.quote-card q { font-family: var(--serif); font-size: 1.25rem; line-height: 1.4; display: block; margin-bottom: 14px; }
.quote-card small { color: var(--cyan); display: block; }
.fact-card { position: absolute; right: -4%; top: 12%; background: var(--card); border: 1px solid var(--line); border-radius: 16px; padding: 16px 20px; box-shadow: 0 16px 32px rgba(13,42,62,0.12); max-width: 210px; }
.fact-card b { font-family: var(--serif); font-size: 1.8rem; color: var(--blue); display: block; }

/* Rejillas */
.duo { display: grid; grid-template-columns: repeat(2, 1fr); gap: 22px; }
.trio { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; }
.card { background: var(--card); border: 1px solid var(--line); border-radius: var(--radius); overflow: hidden; display: flex; flex-direction: column; }
.card .photo { aspect-ratio: 16 / 10; }
.card-body { padding: 24px; display: flex; flex-direction: column; gap: 10px; }
.card-body p { color: var(--text); font-size: 0.98rem; }
.panel { border: 1px solid var(--line-dark); border-radius: var(--radius); padding: clamp(24px, 3vw, 38px); display: flex; flex-direction: column; gap: 16px; }
.panel q { font-family: var(--serif); font-size: 1.3rem; line-height: 1.45; color: var(--bg); }

/* Placeholders de foto */
.photo {
  background-color: #DCEAF1;
  background-image: repeating-linear-gradient(135deg, rgba(43,134,191,0.10) 0 2px, transparent 2px 14px);
  display: flex; align-items: center; justify-content: center; text-align: center;
  font-family: var(--mono); font-size: 0.75rem; color: #355468; padding: 16px;
}

/* Tabla de especificaciones */
.specs { width: 100%; border-collapse: collapse; background: var(--card); border: 1px solid var(--line); border-radius: var(--radius); overflow: hidden; }
.specs th, .specs td { text-align: left; padding: 16px 22px; font-size: 0.95rem; }
.specs thead { background: var(--blue); color: #fff; font-family: var(--mono); font-size: 0.8rem; letter-spacing: 0.05em; }
.specs tbody tr + tr { border-top: 1px solid var(--line); }
.table-wrap { overflow-x: auto; }

/* Proceso */
.steps { display: grid; grid-template-columns: repeat(7, 1fr); gap: 10px; margin-bottom: 32px; }
.steps button { display: flex; flex-direction: column; align-items: flex-start; gap: 10px; padding: 0 6px 10px 0; border: 0; background: transparent; text-align: left; cursor: pointer; font-family: inherit; opacity: 0.5; transition: opacity 0.25s ease; }
.steps button[aria-selected="true"] { opacity: 1; }
.steps i { display: block; height: 4px; width: 100%; border-radius: 2px; background: #BFD3DE; }
.steps button[aria-selected="true"] i, .steps button.is-done i { background: var(--blue); }
.steps small { font-family: var(--mono); color: var(--blue-bright); }
.steps span { font-family: var(--serif); font-size: 1.15rem; font-weight: 600; }
.step-detail { display: grid; grid-template-columns: 1.2fr 1fr; gap: 0; background: var(--card); border-radius: 24px; overflow: hidden; border: 1px solid var(--line); }
.step-detail .text { padding: clamp(28px, 4vw, 44px); display: flex; flex-direction: column; justify-content: center; gap: 12px; }
.step-detail .photo { min-height: 240px; }
.step-nav { display: flex; gap: 10px; }
.step-nav button { width: 50px; height: 50px; border-radius: 999px; border: 1px solid var(--ink); background: transparent; cursor: pointer; display: grid; place-items: center; }
.step-nav button:last-child { background: var(--blue); border-color: var(--blue); }

/* Galería */
.gallery { display: grid; grid-template-columns: repeat(4, 1fr); grid-auto-rows: 200px; gap: 16px; }
.gallery button { border: 0; padding: 0; border-radius: var(--radius); overflow: hidden; cursor: pointer; transition: transform 0.25s ease, box-shadow 0.25s ease; }
.gallery button:hover { transform: scale(1.015); box-shadow: 0 14px 32px rgba(13,42,62,0.16); }
.gallery button:first-child { grid-column: span 2; grid-row: span 2; }
.gallery .photo { width: 100%; height: 100%; }

/* Lightbox */
.lightbox { position: fixed; inset: 0; z-index: 90; background: rgba(8,26,40,0.92); display: none; flex-direction: column; align-items: center; justify-content: center; gap: 20px; padding: 5vw; }
.lightbox[open], .lightbox.is-open { display: flex; }
.lightbox-frame { width: min(1100px, 100%); display: flex; align-items: center; gap: 16px; }
.lightbox .photo { flex: 1; aspect-ratio: 16 / 10; border-radius: var(--radius); }
.lightbox-bar { width: min(1100px, 100%); display: flex; justify-content: space-between; align-items: center; color: var(--bg); font-family: var(--mono); font-size: 0.8rem; }
.round { width: 52px; height: 52px; border-radius: 999px; border: 0; background: var(--bg); cursor: pointer; display: grid; place-items: center; flex: none; }
.round--ghost { background: transparent; border: 1px solid var(--bg); }

/* Sostenibilidad */
.metrics { display: grid; grid-template-columns: repeat(2, 1fr); gap: 16px; }
.metric { border: 1px solid #4F8DB8; border-radius: var(--radius); padding: 26px; display: flex; flex-direction: column; gap: 14px; }
.metric b { font-family: var(--serif); font-size: clamp(2rem, 4vw, 3.4rem); font-weight: 400; }
.split { display: grid; grid-template-columns: 1fr 1fr; gap: clamp(28px, 5vw, 64px); align-items: center; }

/* Valores */
.values { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
.value { background: var(--card); border: 1px solid var(--line); border-radius: var(--radius); padding: 26px; display: flex; flex-direction: column; gap: 12px; }
.value p { color: var(--text); font-size: 0.95rem; }

/* Calidad */
.commitments { display: grid; grid-template-columns: repeat(2, 1fr); gap: 14px 22px; }
.commitment { border-top: 1px solid var(--line-dark); padding-top: 18px; display: flex; flex-direction: column; gap: 6px; }
.commitment b { font-size: 1rem; }
.commitment span { color: #B4CBDA; font-size: 0.92rem; line-height: 1.5; }
.doc-card { border: 1px solid var(--line-dark); border-radius: var(--radius); padding: 24px; display: flex; flex-direction: column; gap: 18px; }
.doc-card header { display: flex; align-items: center; gap: 14px; }
.doc-icon { width: 50px; height: 50px; border-radius: 12px; background: #163C56; display: grid; place-items: center; flex: none; }
.doc-card a { color: var(--bg); border-bottom: 1px solid var(--cyan); padding-bottom: 3px; align-self: flex-start; font-weight: 600; }

/* Certificaciones */
.logos { display: grid; grid-template-columns: repeat(5, 1fr); gap: 16px; }
.logos .photo { aspect-ratio: 3 / 2; border-radius: 16px; }

/* Contacto */
.contact { display: grid; grid-template-columns: 1fr 1fr; gap: clamp(32px, 5vw, 64px); }
.contact-list { display: flex; flex-direction: column; gap: 18px; margin: 26px 0; }
.contact-item { display: flex; gap: 14px; align-items: flex-start; }
.contact-item b { display: block; }
.contact-item span { color: var(--text); }
.map { aspect-ratio: 16 / 10; border-radius: var(--radius); }
.form-card { background: var(--card); border: 1px solid var(--line); border-radius: 24px; padding: clamp(26px, 4vw, 44px); display: flex; flex-direction: column; gap: 18px; }
.field { display: flex; flex-direction: column; gap: 7px; font-size: 0.88rem; font-weight: 500; }
.field input, .field textarea, .field select {
  font-family: inherit; font-size: 1rem; color: var(--ink);
  border: 1px solid #BFD3DE; border-radius: 12px; background: #fff; padding: 13px 15px;
}
.field textarea { resize: vertical; min-height: 130px; }
.field-row { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.chips { display: flex; flex-wrap: wrap; gap: 10px; }
.chips button { min-height: 44px; padding: 0 18px; border-radius: 999px; border: 1px solid #BFD3DE; background: #fff; font-family: inherit; font-size: 0.95rem; cursor: pointer; }
.chips button[aria-pressed="true"] { background: var(--blue-bright); border-color: var(--blue-bright); color: #fff; }
.form-note { font-size: 0.85rem; color: var(--muted); }
.whatsapp { display: inline-flex; align-items: center; gap: 10px; }

/* Pie */
.site-footer { background: var(--navy); color: var(--bg); padding: 72px 0 32px; }
.footer-grid { display: grid; grid-template-columns: 2fr 1fr 1fr 1fr; gap: 32px; }
.footer-grid a { color: var(--bg); display: block; padding: 4px 0; }
.footer-grid h4 { font-family: var(--mono); font-size: 0.72rem; letter-spacing: 0.1em; color: var(--cyan); margin: 0 0 8px; font-weight: 500; }
.footer-bottom { display: flex; flex-wrap: wrap; gap: 12px; justify-content: space-between; margin-top: 44px; padding-top: 22px; border-top: 1px solid var(--line-dark); font-size: 0.8rem; color: #8FA8B9; }

/* Aparición al hacer scroll */
.reveal { opacity: 0; transform: translateY(36px); transition: opacity 0.7s ease, transform 0.7s cubic-bezier(.2,.7,.2,1); }
.reveal.is-visible { opacity: 1; transform: none; }

/* Responsive */
@media (max-width: 1080px) {
  .steps { grid-template-columns: repeat(4, 1fr); gap: 14px; }
  .logos { grid-template-columns: repeat(3, 1fr); }
  .gallery { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 900px) {
  :root { --shell: min(680px, 100% - 8vw); }
  .nav-toggle { display: grid; place-items: center; }
  .main-nav {
    position: absolute; top: 100%; left: 0; right: 0;
    flex-direction: column; align-items: flex-start; gap: 4px;
    background: var(--bg); border-bottom: 1px solid var(--line);
    padding: 16px 5vw 22px; display: none;
  }
  .main-nav.is-open { display: flex; }
  .main-nav a { padding: 10px 0; width: 100%; }
  .header-actions .btn { display: none; }
  .about, .split, .contact, .step-detail, .duo { grid-template-columns: 1fr; }
  .trio, .values, .commitments, .field-row { grid-template-columns: 1fr 1fr; }
  .about-media { margin-top: 40px; }
  .quote-card { position: static; width: 100%; margin-top: 16px; }
  .fact-card { position: static; max-width: none; margin-top: 12px; }
}
@media (max-width: 620px) {
  .brand span { display: none; }
  .brand img { height: 46px; }
  .site-header .shell { min-height: 72px; }
  .about-media { margin-bottom: 24px; }
  .trio, .values, .commitments, .metrics, .field-row, .about-stats { grid-template-columns: 1fr; }
  .steps { grid-template-columns: repeat(2, 1fr); }
  .gallery { grid-template-columns: 1fr; grid-auto-rows: 180px; }
  .gallery button:first-child { grid-column: span 1; grid-row: span 1; }
  .logos { grid-template-columns: repeat(2, 1fr); }
  .hero-dots button { width: 48px; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation: none !important; transition: none !important; }
  .reveal { opacity: 1; transform: none; }
}