/* ==========================================================================
   SINTARA — Hoja de estilos principal
   ========================================================================== */

/* -------------------- Reset -------------------- */
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body, h1, h2, h3, h4, p, ul, figure { margin: 0; }
ul { padding: 0; list-style: none; }
img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
button { font: inherit; color: inherit; background: none; border: none; cursor: pointer; padding: 0; }
svg { fill: none; stroke: currentColor; stroke-width: 1.6; stroke-linecap: round; stroke-linejoin: round; }

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation-duration: 0.01ms !important; animation-iteration-count: 1 !important; transition-duration: 0.01ms !important; scroll-behavior: auto !important; }
}

/* -------------------- Tokens -------------------- */
:root {
  /* Paleta de marca (extraída del logo SINTARA) */
  --navy-950: #0a1630;
  --navy-900: #0f1f3f;
  --navy-800: #16295c;
  --navy-700: #203773;
  --teal-700: #00565b;
  --teal-600: #00676d;
  --teal-500: #009499;
  --teal-400: #00b3ac;
  --cyan-400: #2fd6c8;

  --grad-brand: linear-gradient(120deg, var(--navy-900) 0%, var(--teal-600) 100%);
  --grad-brand-soft: linear-gradient(120deg, rgba(15,31,63,0.08) 0%, rgba(0,148,153,0.10) 100%);

  --ink-900: #101828;
  --ink-700: #33415a;
  --ink-500: #5b6b85;
  --ink-400: #7b8aa3;
  --ink-200: #d9e0eb;
  --ink-100: #eef1f6;

  --bg: #ffffff;
  --bg-alt: #f6f8fb;
  --bg-dark: var(--navy-950);

  --radius-sm: 10px;
  --radius-md: 16px;
  --radius-lg: 24px;

  --shadow-sm: 0 1px 2px rgba(15, 31, 63, 0.06), 0 1px 1px rgba(15, 31, 63, 0.04);
  --shadow-md: 0 12px 28px -12px rgba(15, 31, 63, 0.18);
  --shadow-lg: 0 24px 60px -20px rgba(15, 31, 63, 0.28);

  --font-display: 'Manrope', 'Segoe UI', system-ui, sans-serif;
  --font-body: 'Inter', 'Segoe UI', system-ui, sans-serif;

  --container-w: 1180px;
  --header-h: 78px;

  --ease: cubic-bezier(.4,0,.2,1);
}

/* -------------------- Base -------------------- */
body {
  font-family: var(--font-body);
  color: var(--ink-700);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
  line-height: 1.6;
  overflow-x: hidden;
}

h1, h2, h3, h4 {
  font-family: var(--font-display);
  color: var(--navy-900);
  font-weight: 700;
  line-height: 1.15;
  letter-spacing: -0.01em;
}

h2 { font-size: clamp(1.9rem, 1.5rem + 1.6vw, 2.75rem); }
h3 { font-size: 1.25rem; }

p { color: var(--ink-500); }

.container {
  width: 100%;
  max-width: var(--container-w);
  margin-inline: auto;
  padding-inline: 24px;
}

.skip-link {
  position: absolute;
  left: -999px;
  top: 0;
  background: var(--navy-900);
  color: #fff;
  padding: 12px 20px;
  z-index: 999;
  border-radius: 0 0 8px 0;
}
.skip-link:focus { left: 0; }

:focus-visible {
  outline: 2px solid var(--teal-500);
  outline-offset: 3px;
}

/* -------------------- Buttons -------------------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 14px 28px;
  border-radius: 999px;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 0.95rem;
  letter-spacing: 0.01em;
  transition: transform 0.25s var(--ease), box-shadow 0.25s var(--ease), background 0.25s var(--ease), color 0.25s var(--ease), border-color .25s var(--ease);
  white-space: nowrap;
}
.btn-primary {
  background: var(--grad-brand);
  background-size: 160% 160%;
  background-position: 0% 50%;
  color: #fff;
  box-shadow: var(--shadow-md);
}
.btn-primary:hover {
  background-position: 100% 50%;
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg);
}
.btn-outline {
  background: transparent;
  color: var(--navy-900);
  border: 1.5px solid var(--ink-200);
}
.btn-outline:hover {
  border-color: var(--teal-500);
  color: var(--teal-600);
  transform: translateY(-2px);
}
.section--dark .btn-outline { color: #fff; border-color: rgba(255,255,255,0.3); }

/* -------------------- Eyebrow / labels -------------------- */
.eyebrow {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  row-gap: 6px;
  column-gap: 8px;
  font-family: var(--font-display);
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--cyan-400);
  margin-bottom: 18px;
  max-width: 100%;
}
.eyebrow::before {
  content: "";
  width: 22px;
  height: 2px;
  background: currentColor;
  border-radius: 2px;
}
.eyebrow--dark { color: var(--teal-600); }

/* ==========================================================================
   HEADER
   ========================================================================== */
.site-header {
  position: fixed;
  inset: 0 0 auto 0;
  z-index: 100;
  height: var(--header-h);
  display: flex;
  align-items: center;
  background: rgba(255,255,255,0.7);
  backdrop-filter: blur(14px) saturate(140%);
  -webkit-backdrop-filter: blur(14px) saturate(140%);
  border-bottom: 1px solid transparent;
  transition: background 0.3s var(--ease), border-color 0.3s var(--ease), box-shadow 0.3s var(--ease);
}
.site-header.is-scrolled {
  background: rgba(255,255,255,0.92);
  border-bottom-color: var(--ink-100);
  box-shadow: 0 4px 24px -12px rgba(15,31,63,0.12);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  flex-shrink: 0;
}
.brand-icon { height: 30px; width: auto; }
.brand-word {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 1.3rem;
  letter-spacing: 0.01em;
  color: var(--navy-900);
}

.main-nav ul {
  display: flex;
  align-items: center;
  gap: 36px;
}
.nav-link {
  position: relative;
  font-family: var(--font-display);
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--ink-700);
  padding: 8px 0;
  transition: color 0.2s var(--ease);
}
.nav-link::after {
  content: "";
  position: absolute;
  left: 0; right: 100%;
  bottom: 0;
  height: 2px;
  background: var(--grad-brand);
  border-radius: 2px;
  transition: right 0.3s var(--ease);
}
.nav-link:hover { color: var(--navy-900); }
.nav-link:hover::after, .nav-link.active-link::after { right: 0; }
.nav-link.active-link { color: var(--navy-900); }

.btn-nav-cta { padding: 11px 24px; font-size: 0.9rem; }

.header-actions {
  display: flex;
  align-items: center;
  gap: 16px;
  flex-shrink: 0;
}

.nav-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 40px;
  height: 40px;
  flex-shrink: 0;
}
.nav-toggle span {
  display: block;
  width: 100%;
  height: 2px;
  background: var(--navy-900);
  border-radius: 2px;
  transition: transform 0.3s var(--ease), opacity 0.3s var(--ease);
}
.nav-toggle[aria-expanded="true"] span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav-toggle[aria-expanded="true"] span:nth-child(2) { opacity: 0; }
.nav-toggle[aria-expanded="true"] span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

.nav-overlay {
  position: fixed;
  inset: 0;
  background: rgba(10,22,48,0.35);
  backdrop-filter: blur(2px);
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.3s var(--ease), visibility 0.3s var(--ease);
  z-index: 90;
}
.nav-overlay.is-visible { opacity: 1; visibility: visible; }

/* -------------------- Selector de idioma -------------------- */
.lang-switch {
  display: flex;
  align-items: center;
  gap: 2px;
  flex-shrink: 0;
  padding: 3px;
  background: var(--bg-alt);
  border: 1px solid var(--ink-100);
  border-radius: 999px;
}
.lang-btn {
  padding: 6px 12px;
  border-radius: 999px;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 0.78rem;
  letter-spacing: 0.03em;
  color: var(--ink-500);
  transition: background 0.25s var(--ease), color 0.25s var(--ease), box-shadow 0.25s var(--ease);
}
.lang-btn:hover { color: var(--navy-900); }
.lang-btn.is-active {
  background: var(--grad-brand);
  color: #fff;
  box-shadow: var(--shadow-sm);
}

/* ==========================================================================
   HERO
   ========================================================================== */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  padding-top: var(--header-h);
  overflow: hidden;
  background: var(--bg);
}

.hero-bg { position: absolute; inset: 0; z-index: 0; pointer-events: none; }
.hero-mesh { position: absolute; inset: 0; width: 100%; height: 100%; }

.dot-grid {
  position: absolute;
  background-image: radial-gradient(var(--ink-200) 1.5px, transparent 1.5px);
  background-size: 22px 22px;
  opacity: 0.6;
}
.dot-grid--hero { top: 8%; right: 4%; width: 260px; height: 260px; -webkit-mask-image: radial-gradient(circle, #000 40%, transparent 75%); mask-image: radial-gradient(circle, #000 40%, transparent 75%); }
.dot-grid--contact { position: absolute; bottom: 0; left: 0; width: 320px; height: 320px; opacity: 0.08; background-image: radial-gradient(#fff 1.5px, transparent 1.5px); -webkit-mask-image: radial-gradient(circle, #000 30%, transparent 70%); mask-image: radial-gradient(circle, #000 30%, transparent 70%); }

.hero-inner {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: 1.05fr 0.95fr;
  align-items: center;
  gap: 48px;
  padding-block: 64px 40px;
}

.eyebrow { color: var(--teal-600); }

.hero-title {
  font-size: clamp(2.4rem, 1.7rem + 3vw, 3.6rem);
  color: var(--navy-900);
  margin-bottom: 20px;
}
.hero-subtitle {
  font-family: var(--font-display);
  font-size: clamp(1.05rem, 1rem + 0.3vw, 1.25rem);
  font-weight: 600;
  color: var(--teal-700);
  margin-bottom: 18px;
  max-width: 40ch;
}
.hero-text {
  font-size: 1.05rem;
  color: var(--ink-500);
  max-width: 46ch;
  margin-bottom: 34px;
}
.hero-actions { display: flex; flex-wrap: wrap; gap: 16px; }

/* Hero visual — orbiting cards */
.hero-visual {
  position: relative;
  height: 420px;
  display: flex;
  align-items: center;
  justify-content: center;
}
.orbit-ring {
  position: absolute;
  border-radius: 50%;
  border: 1.5px dashed var(--ink-200);
}
.orbit-ring--outer { width: 380px; height: 380px; animation: spin 60s linear infinite; }
.orbit-ring--inner { width: 260px; height: 260px; border-style: solid; border-color: rgba(0,148,153,0.18); }

.orbit-core {
  position: relative;
  width: 140px;
  height: 140px;
  border-radius: 50%;
  background: #fff;
  box-shadow: var(--shadow-lg);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 2;
}
.orbit-core img { height: 46px; width: auto; }

.orbit-card {
  position: absolute;
  display: flex;
  align-items: center;
  gap: 10px;
  background: #fff;
  padding: 12px 18px;
  border-radius: 999px;
  box-shadow: var(--shadow-md);
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 0.85rem;
  color: var(--navy-900);
  border: 1px solid var(--ink-100);
  animation: float 6s ease-in-out infinite;
}
.orbit-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 26px;
  height: 26px;
  border-radius: 50%;
  background: var(--grad-brand-soft);
  color: var(--teal-600);
  flex-shrink: 0;
}
.orbit-icon svg { width: 15px; height: 15px; }

.orbit-card--1 { top: 4%; left: -4%; animation-delay: 0s; }
.orbit-card--2 { bottom: 12%; left: -2%; animation-delay: 1.4s; }
.orbit-card--3 { top: 42%; right: -8%; animation-delay: 2.8s; }

@keyframes float {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-10px); }
}
@keyframes spin {
  to { transform: rotate(360deg); }
}

.scroll-cue {
  position: absolute;
  bottom: 28px;
  left: 50%;
  transform: translateX(-50%);
  width: 26px;
  height: 42px;
  border: 2px solid var(--ink-200);
  border-radius: 20px;
  z-index: 1;
}
.scroll-cue span {
  position: absolute;
  top: 8px; left: 50%;
  width: 4px; height: 8px;
  margin-left: -2px;
  background: var(--teal-500);
  border-radius: 2px;
  animation: scrollcue 1.8s infinite;
}
@keyframes scrollcue {
  0% { opacity: 1; transform: translateY(0); }
  70% { opacity: 0; transform: translateY(14px); }
  100% { opacity: 0; }
}

/* ==========================================================================
   SECTIONS — generic
   ========================================================================== */
.section { padding-block: 110px; position: relative; }
.section--alt { background: var(--bg-alt); }
.section--dark {
  background: var(--navy-950);
  color: #fff;
  position: relative;
  overflow: hidden;
}
.section--dark h2 { color: #fff; }
.section--dark p { color: rgba(255,255,255,0.72); }
.hero-bg--contact { background: linear-gradient(135deg, var(--navy-950) 0%, var(--navy-900) 55%, var(--teal-700) 130%); }

.section-head { max-width: 720px; margin-bottom: 56px; }
.section-lead { margin-top: 14px; font-size: 1.05rem; }

/* ==========================================================================
   NOSOTROS
   ========================================================================== */
.about-grid {
  display: grid;
  grid-template-columns: 1.3fr 0.9fr;
  gap: 64px;
  align-items: center;
  margin-bottom: 90px;
}
.about-copy p { margin-bottom: 18px; font-size: 1.02rem; }
.about-copy p:last-child { margin-bottom: 0; }
.about-copy strong { color: var(--navy-900); }

.about-visual { display: flex; justify-content: center; }
.about-svg { width: 100%; max-width: 320px; height: auto; }

.mv-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 28px;
  margin-bottom: 90px;
}
.mv-card {
  background: #fff;
  border: 1px solid var(--ink-100);
  border-radius: var(--radius-lg);
  padding: 40px;
  box-shadow: var(--shadow-sm);
  transition: transform 0.3s var(--ease), box-shadow 0.3s var(--ease);
}
.mv-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-md); }
.mv-icon {
  width: 52px; height: 52px;
  border-radius: 14px;
  background: var(--grad-brand);
  color: #fff;
  display: flex; align-items: center; justify-content: center;
  margin-bottom: 22px;
}
.mv-icon svg { width: 26px; height: 26px; }
.mv-card h3 { margin-bottom: 12px; }
.mv-card p { font-size: 0.98rem; }

.values-title {
  font-size: 1.5rem;
  margin-bottom: 32px;
  text-align: center;
}
.values-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.value-card {
  padding: 30px 26px;
  border-radius: var(--radius-md);
  background: var(--bg-alt);
  border: 1px solid var(--ink-100);
  transition: transform 0.3s var(--ease), background 0.3s var(--ease), border-color 0.3s var(--ease);
}
.value-card:hover {
  transform: translateY(-4px);
  background: #fff;
  border-color: rgba(0,148,153,0.3);
  box-shadow: var(--shadow-md);
}
.value-num {
  display: block;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 0.85rem;
  color: var(--teal-500);
  letter-spacing: 0.06em;
  margin-bottom: 14px;
}
.value-card h4 {
  font-family: var(--font-display);
  color: var(--navy-900);
  font-size: 1.05rem;
  font-weight: 700;
  margin-bottom: 10px;
}
.value-card p { font-size: 0.92rem; margin: 0; }

/* ==========================================================================
   SERVICIOS — Accordion
   ========================================================================== */
.accordion { display: flex; flex-direction: column; gap: 16px; }

.acc-item {
  background: #fff;
  border: 1px solid var(--ink-100);
  border-radius: var(--radius-md);
  overflow: hidden;
  transition: border-color 0.3s var(--ease), box-shadow 0.3s var(--ease);
}
.acc-item.is-open,
.acc-item:has(.acc-trigger[aria-expanded="true"]) {
  border-color: rgba(0,148,153,0.35);
  box-shadow: var(--shadow-md);
}

.acc-trigger {
  width: 100%;
  display: flex;
  align-items: center;
  gap: 20px;
  padding: 26px 28px;
  text-align: left;
}

.acc-icon {
  flex-shrink: 0;
  width: 48px; height: 48px;
  border-radius: 12px;
  background: var(--grad-brand-soft);
  color: var(--teal-600);
  display: flex; align-items: center; justify-content: center;
  transition: background 0.3s var(--ease), color 0.3s var(--ease);
}
.acc-icon svg { width: 24px; height: 24px; }
.acc-trigger[aria-expanded="true"] .acc-icon {
  background: var(--grad-brand);
  color: #fff;
}

.acc-heading { flex: 1; display: flex; flex-direction: column; gap: 6px; }
.acc-title {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.08rem;
  color: var(--navy-900);
}
.acc-desc { font-size: 0.92rem; color: var(--ink-500); }

.acc-plus {
  position: relative;
  flex-shrink: 0;
  width: 22px; height: 22px;
}
.acc-plus::before, .acc-plus::after {
  content: "";
  position: absolute;
  background: var(--navy-900);
  border-radius: 2px;
  transition: transform 0.3s var(--ease), background 0.3s var(--ease);
}
.acc-plus::before { top: 50%; left: 0; width: 100%; height: 2px; margin-top: -1px; }
.acc-plus::after { left: 50%; top: 0; height: 100%; width: 2px; margin-left: -1px; }
.acc-trigger[aria-expanded="true"] .acc-plus::after { transform: rotate(90deg); opacity: 0; }
.acc-trigger[aria-expanded="true"] .acc-plus::before { background: var(--teal-500); }

.acc-panel {
  display: grid;
  grid-template-rows: 0fr;
  transition: grid-template-rows 0.4s var(--ease);
}
.acc-panel-inner { overflow: hidden; }
.acc-trigger[aria-expanded="true"] + .acc-panel { grid-template-rows: 1fr; }

.acc-panel .acc-panel-inner > * {
  padding-inline: 28px 28px;
}
.acc-panel-inner { padding-bottom: 4px; }
.acc-panel-inner p, .acc-panel-inner ul { margin-left: 28px; margin-right: 28px; width: calc(100% - 56px); }
.acc-panel-inner p { font-size: 0.96rem; margin-bottom: 14px; padding: 0; }
.acc-panel-inner p:first-child { margin-top: 4px; }
.acc-sub {
  font-family: var(--font-display);
  font-weight: 700;
  color: var(--navy-900);
  font-size: 0.92rem;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  margin-top: 18px !important;
}
.acc-list {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 10px 24px;
  padding: 0;
  margin-bottom: 20px !important;
}
.acc-list li {
  position: relative;
  padding-left: 20px;
  font-size: 0.94rem;
  color: var(--ink-700);
}
.acc-list li::before {
  content: "";
  position: absolute;
  left: 0; top: 9px;
  width: 7px; height: 7px;
  border-radius: 50%;
  background: var(--teal-500);
}

/* ==========================================================================
   CÓMO TRABAJAMOS — Process
   ========================================================================== */
.process {
  position: relative;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 32px;
}
.process-line {
  position: absolute;
  top: 22px;
  left: 0; right: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--ink-200) 0%, var(--teal-400) 50%, var(--ink-200) 100%);
  z-index: 0;
}
.process-step { position: relative; z-index: 1; }
.process-num {
  width: 46px; height: 46px;
  border-radius: 50%;
  background: #fff;
  border: 2px solid var(--teal-500);
  color: var(--navy-900);
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 0.95rem;
  display: flex; align-items: center; justify-content: center;
  margin-bottom: 22px;
  box-shadow: 0 0 0 6px var(--bg);
}
.process-step h3 { margin-bottom: 10px; }
.process-tag {
  font-family: var(--font-display);
  font-weight: 600;
  color: var(--teal-700);
  font-size: 0.92rem;
  margin-bottom: 10px;
}
.process-step p:not(.process-tag) { font-size: 0.94rem; }

/* ==========================================================================
   CONTACTO
   ========================================================================== */
#contacto { padding-block: 110px; }
.contact-grid {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
  align-items: start;
}
.contact-copy .eyebrow { color: var(--cyan-400); }
.contact-copy h2 { margin-bottom: 20px; }
.contact-copy p { margin-bottom: 32px; font-size: 1.05rem; max-width: 46ch; }

.contact-cards { display: flex; flex-direction: column; gap: 16px; }
.contact-card {
  display: flex;
  align-items: flex-start;
  gap: 18px;
  padding: 24px;
  border-radius: var(--radius-md);
  background: rgba(255,255,255,0.05);
  border: 1px solid rgba(255,255,255,0.12);
  transition: background 0.3s var(--ease), border-color 0.3s var(--ease), transform 0.3s var(--ease);
}
.contact-card:hover {
  background: rgba(255,255,255,0.08);
  border-color: rgba(47,214,200,0.4);
  transform: translateY(-3px);
}
.contact-icon {
  flex-shrink: 0;
  width: 44px; height: 44px;
  border-radius: 12px;
  background: rgba(47,214,200,0.14);
  color: var(--cyan-400);
  display: flex; align-items: center; justify-content: center;
}
.contact-icon svg { width: 22px; height: 22px; }
.contact-card strong {
  display: block;
  font-family: var(--font-display);
  color: #fff;
  font-size: 0.98rem;
  margin-bottom: 4px;
}
.contact-card span { color: rgba(255,255,255,0.72); font-size: 0.92rem; line-height: 1.55; }

/* ==========================================================================
   FOOTER
   ========================================================================== */
.site-footer { background: var(--navy-950); color: rgba(255,255,255,0.7); }
.footer-inner {
  display: flex;
  justify-content: space-between;
  gap: 40px;
  padding-block: 56px 40px;
  border-top: 1px solid rgba(255,255,255,0.08);
  flex-wrap: wrap;
}
.footer-brand { max-width: 420px; }
.brand--footer { margin-bottom: 18px; }
.brand--footer .brand-word { color: #fff; }
.footer-brand p { margin-bottom: 8px; font-size: 0.92rem; color: rgba(255,255,255,0.6); }
.footer-brand a:hover { color: var(--cyan-400); }

.footer-nav {
  display: flex;
  flex-direction: column;
  gap: 14px;
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 0.92rem;
  padding-top: 4px;
}
.footer-nav a { color: rgba(255,255,255,0.75); transition: color 0.2s var(--ease); }
.footer-nav a:hover { color: var(--cyan-400); }

.footer-bottom {
  border-top: 1px solid rgba(255,255,255,0.08);
  padding-block: 22px;
}
.footer-bottom p { font-size: 0.82rem; color: rgba(255,255,255,0.45); margin: 0; }

/* ==========================================================================
   BACK TO TOP
   ========================================================================== */
.back-to-top {
  position: fixed;
  right: 24px;
  bottom: 24px;
  width: 48px; height: 48px;
  border-radius: 50%;
  background: var(--grad-brand);
  color: #fff;
  display: flex; align-items: center; justify-content: center;
  box-shadow: var(--shadow-md);
  opacity: 0;
  visibility: hidden;
  transform: translateY(10px);
  transition: opacity 0.3s var(--ease), transform 0.3s var(--ease), visibility 0.3s var(--ease);
  z-index: 80;
}
.back-to-top.is-visible { opacity: 1; visibility: visible; transform: translateY(0); }
.back-to-top svg { width: 20px; height: 20px; }

/* ==========================================================================
   REVEAL ANIMATIONS
   ========================================================================== */
.reveal {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.7s var(--ease), transform 0.7s var(--ease);
}
.reveal.is-visible { opacity: 1; transform: translateY(0); }

/* ==========================================================================
   RESPONSIVE
   ========================================================================== */
@media (max-width: 1024px) {
  .hero-inner { grid-template-columns: 1fr; }
  .hero-visual { height: 340px; order: -1; }
  .about-grid { grid-template-columns: 1fr; }
  .about-visual { order: -1; }
  .about-svg { max-width: 240px; }
  .values-grid { grid-template-columns: repeat(2, 1fr); }
  .process { grid-template-columns: repeat(2, 1fr); row-gap: 48px; }
  .process-line { display: none; }
  .contact-grid { grid-template-columns: 1fr; gap: 48px; }
}

@media (max-width: 860px) {
  :root { --header-h: 68px; }

  .main-nav {
    position: fixed;
    top: var(--header-h);
    right: 0;
    left: auto;
    bottom: 0;
    height: calc(100vh - var(--header-h));
    height: calc(100dvh - var(--header-h));
    width: min(320px, 84vw);
    background: #fff;
    box-shadow: -12px 0 40px rgba(15,31,63,0.12);
    padding: 36px 28px;
    transform: translateX(100%);
    transition: transform 0.35s var(--ease);
    z-index: 95;
    overflow-y: auto;
  }
  .main-nav.is-open { transform: translateX(0); }
  .main-nav ul { flex-direction: column; align-items: flex-start; gap: 6px; }
  .main-nav .nav-link { display: block; width: 100%; padding: 14px 4px; font-size: 1.05rem; }
  .main-nav .nav-link::after { display: none; }
  .main-nav .nav-link.active-link, .main-nav .nav-link:hover { color: var(--teal-600); }

  .btn-nav-cta { display: none; }
  .nav-toggle { display: flex; }
  .header-actions { gap: 10px; }
  .lang-switch { padding: 2px; }
  .lang-btn { padding: 5px 9px; font-size: 0.72rem; }

  .hero { min-height: auto; padding-bottom: 60px; }
  .hero-inner { padding-block: 48px 24px; gap: 40px; }
  .hero-actions .btn { width: 100%; }
  .hero-actions { flex-direction: column; }
  .hero-visual { height: 280px; overflow: hidden; }
  .orbit-ring--outer { width: 260px; height: 260px; }
  .orbit-ring--inner { width: 180px; height: 180px; }
  .orbit-core { width: 100px; height: 100px; }
  .orbit-core img { height: 32px; }
  .orbit-card { padding: 8px 12px; font-size: 0.7rem; gap: 6px; }
  .orbit-card--1 { left: 2%; }
  .orbit-card--2 { left: 4%; }
  .orbit-card--3 { right: 2%; }

  .section { padding-block: 72px; }
  .mv-grid { grid-template-columns: 1fr; }
  .values-grid { grid-template-columns: 1fr; }
  .acc-list { grid-template-columns: 1fr; }
  .acc-trigger { padding: 20px; gap: 14px; }
  .acc-title { font-size: 1rem; }
  .process { grid-template-columns: 1fr; }

  .footer-inner { flex-direction: column; gap: 32px; }
}

@media (max-width: 480px) {
  .container { padding-inline: 20px; }
  .hero-title { font-size: 2.1rem; }
  .acc-icon { width: 40px; height: 40px; }
  .acc-icon svg { width: 20px; height: 20px; }
}