/* =============================================================
   Instituto Lilly Santos — Design System
   Modern Boutique: muted earth tones, editorial typography
   ============================================================= */

:root {
  /* Color */
  --color-bg: #faf7f2;
  --color-surface: #ffffff;
  --color-surface-warm: #f3ece1;
  --color-ink: #1f1a16;
  --color-ink-soft: #4a423d;
  --color-muted: #8a7e75;
  --color-accent: #a07853;
  --color-accent-dark: #7a5a3d;
  --color-champagne: #d4b896;
  --color-line: #e8dfd3;
  --color-line-soft: #f1ebe1;

  /* Type */
  --font-display: "Cormorant Garamond", "Playfair Display", Georgia, "Times New Roman", serif;
  --font-body: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Helvetica, Arial, sans-serif;
  --font-mono-mark: "Cormorant Garamond", Georgia, serif;

  /* Spacing rhythm */
  --space-1: 0.5rem;
  --space-2: 1rem;
  --space-3: 1.5rem;
  --space-4: 2rem;
  --space-5: 3rem;
  --space-6: 4.5rem;
  --space-7: 6.5rem;

  /* Layout */
  --max-w: 1240px;
  --radius-sm: 4px;
  --radius-md: 10px;
  --radius-lg: 18px;

  /* Misc */
  --shadow-soft: 0 18px 50px -28px rgba(31, 26, 22, 0.25);
  --shadow-card: 0 8px 32px -22px rgba(31, 26, 22, 0.35);
  --transition: 240ms cubic-bezier(.2,.7,.2,1);
}

/* =========== Reset =========== */
*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.65;
  color: var(--color-ink);
  background: var(--color-bg);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}
img { max-width: 100%; height: auto; display: block; }
a { color: inherit; text-decoration: none; transition: color var(--transition); }
button { font: inherit; cursor: pointer; border: none; background: none; color: inherit; }

/* =========== Type =========== */
h1, h2, h3, h4 {
  font-family: var(--font-display);
  font-weight: 500;
  letter-spacing: -0.01em;
  line-height: 1.02;
  color: var(--color-ink);
  margin: 0 0 var(--space-3);
  text-wrap: pretty;
}
h1 { font-size: clamp(2.6rem, 5.5vw, 4.6rem); font-weight: 400; }
h2 { font-size: clamp(2rem, 3.6vw, 3.1rem); font-weight: 400; }
h3 { font-size: clamp(1.4rem, 2vw, 1.7rem); }
h4 { font-size: 1.15rem; font-family: var(--font-body); font-weight: 600; letter-spacing: 0.02em; }
p  { margin: 0 0 var(--space-3); color: var(--color-ink-soft); }
.lead { font-size: 1.15rem; color: var(--color-ink-soft); max-width: 60ch; }

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  font-family: var(--font-body);
  font-size: 0.78rem;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--color-accent);
  font-weight: 500;
}
.eyebrow::before {
  content: "";
  width: 28px;
  height: 1px;
  background: var(--color-accent);
}

/* =========== Layout =========== */
.container {
  width: 100%;
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 0 clamp(1.25rem, 4vw, 2.5rem);
}
.section { padding: clamp(4rem, 9vw, 7rem) 0; }
.section--tight { padding: clamp(3rem, 6vw, 5rem) 0; }

/* Anchor scroll offset — keep target sections clear of the sticky header */
section[id] { scroll-margin-top: 110px; }
@media (max-width: 720px) { section[id] { scroll-margin-top: 92px; } }
@media (max-width: 480px) { section[id] { scroll-margin-top: 78px; } }

/* =========== Header / Nav =========== */
.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(250, 247, 242, 0.85);
  backdrop-filter: saturate(140%) blur(10px);
  -webkit-backdrop-filter: saturate(140%) blur(10px);
  border-bottom: 1px solid var(--color-line);
}
.nav {
  display: flex;
  align-items: center;
  height: 88px;
  gap: 1.5rem;
}
.nav > nav { margin-left: auto; }
.brand {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  font-family: var(--font-display);
  font-size: 1.4rem;
  letter-spacing: 0.01em;
  color: var(--color-ink);
  text-decoration: none;
}
.brand-lockup {
  display: block;
  height: 84px;
  width: auto;
  color: inherit;
}
@media (max-width: 720px) {
  .brand-lockup { height: 66px; }
  .nav { height: 76px; }
}
@media (max-width: 480px) {
  .brand-lockup { height: 52px; }
  .nav { height: 64px; }
}
.brand-name { display: flex; flex-direction: column; line-height: 1.05; }
.brand-name small {
  font-family: var(--font-body);
  font-size: 0.65rem;
  letter-spacing: 0.3em;
  text-transform: uppercase;
  color: var(--color-muted);
}

.nav-links {
  display: flex;
  align-items: center;
  gap: clamp(1.25rem, 2.5vw, 2.4rem);
  list-style: none;
  margin: 0; padding: 0;
}
.nav-links a {
  font-size: 0.92rem;
  letter-spacing: 0.04em;
  color: var(--color-ink-soft);
  position: relative;
  padding: 0.25rem 0;
}
.nav-links a:hover { color: var(--color-accent); }
.nav-links a.is-active { color: var(--color-ink); }
.nav-links a.is-active::after {
  content: "";
  position: absolute;
  left: 0; right: 0;
  bottom: -6px;
  height: 1px;
  background: var(--color-accent);
}

.nav-actions { display: flex; align-items: center; gap: 1rem; }
.lang-toggle {
  display: inline-flex;
  align-items: center;
  font-size: 0.78rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--color-muted);
  border: 1px solid var(--color-line);
  border-radius: 999px;
  overflow: hidden;
}
.lang-toggle button {
  padding: 0.45rem 0.8rem;
  color: var(--color-muted);
}
.lang-toggle button.is-active {
  background: var(--color-ink);
  color: var(--color-bg);
}

.menu-btn {
  display: none;
  width: 46px; height: 46px;
  border: 1px solid var(--color-line);
  border-radius: 50%;
  background: var(--color-bg);
  transition: background 240ms ease, border-color 240ms ease, transform 160ms ease;
  position: relative;
}
.menu-btn:hover {
  background: var(--color-surface-warm);
  border-color: var(--color-accent);
}
.menu-btn:active { transform: scale(0.94); }
.menu-btn span,
.menu-btn span::before,
.menu-btn span::after {
  display: block; width: 18px; height: 1.5px;
  background: var(--color-ink);
  margin: 0 auto; position: relative;
  transition: transform 280ms cubic-bezier(.2,.7,.2,1),
              top 280ms cubic-bezier(.2,.7,.2,1),
              background 200ms ease;
}
.menu-btn span::before { content: ""; position: absolute; top: -6px; left: 0; }
.menu-btn span::after  { content: ""; position: absolute; top:  6px; left: 0; }
/* X state */
.menu-btn.is-open { border-color: var(--color-accent); }
.menu-btn.is-open span { background: transparent; }
.menu-btn.is-open span::before {
  top: 0;
  transform: rotate(45deg);
  background: var(--color-accent);
}
.menu-btn.is-open span::after {
  top: 0;
  transform: rotate(-45deg);
  background: var(--color-accent);
}

/* =========== Buttons =========== */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  padding: 0.95rem 1.6rem;
  border-radius: 999px;
  font-size: 0.86rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  font-weight: 500;
  transition: all var(--transition);
  white-space: nowrap;
}
.btn-primary {
  background: var(--color-ink);
  color: var(--color-bg);
}
.btn-primary:hover { background: var(--color-accent-dark); }
.btn-outline {
  border: 1px solid var(--color-ink);
  color: var(--color-ink);
}
.btn-outline:hover { background: var(--color-ink); color: var(--color-bg); }
.btn-ghost { color: var(--color-ink); padding-left: 0; padding-right: 0; }
.btn-ghost::after { content: "→"; transition: transform var(--transition); }
.btn-ghost:hover::after { transform: translateX(4px); }

/* =========== Hero =========== */
.hero {
  position: relative;
  padding: clamp(2rem, 4.5vw, 3.5rem) 0 clamp(1.5rem, 3.5vw, 2.75rem);
  overflow: hidden;
}
.hero-grid {
  display: grid;
  grid-template-columns: 1.05fr 1fr;
  gap: clamp(2rem, 5vw, 4.5rem);
  align-items: center;
}
.hero-copy h1 { margin-bottom: 1.4rem; }
.hero-copy h1 em {
  font-style: italic;
  color: var(--color-accent);
  font-weight: 300;
}
.hero-meta {
  display: flex;
  gap: 2rem;
  margin-top: 2.5rem;
  padding-top: 1.5rem;
  border-top: 1px solid var(--color-line);
}
.hero-meta-item .num {
  font-family: var(--font-display);
  font-size: 2.1rem;
  color: var(--color-ink);
  display: block;
  line-height: 1;
}
.hero-meta-item .lbl {
  font-size: 0.72rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--color-muted);
  margin-top: 0.45rem;
  display: block;
}

.hero-actions {
  display: flex;
  gap: 1rem;
  margin-top: 2.2rem;
  flex-wrap: wrap;
}

/* Hero image / placeholder */
.hero-visual {
  position: relative;
  aspect-ratio: 4 / 5;
  border-radius: 4px;
  overflow: hidden;
  background:
    radial-gradient(circle at 20% 20%, rgba(212, 184, 150, 0.5), transparent 55%),
    linear-gradient(135deg, #ede2d0 0%, #d4b896 60%, #a07853 100%);
}
.hero-visual::after {
  content: "";
  position: absolute; inset: 0;
  background-image:
    radial-gradient(rgba(31,26,22,0.06) 1px, transparent 1px);
  background-size: 4px 4px;
  mix-blend-mode: multiply;
}
.hero-visual img { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; }
.hero-badge {
  position: absolute;
  bottom: 1.5rem; left: 1.5rem;
  background: var(--color-bg);
  padding: 0.9rem 1.1rem;
  border-radius: 6px;
  font-family: var(--font-display);
  font-style: italic;
  display: flex;
  align-items: center;
  gap: 0.6rem;
  box-shadow: var(--shadow-soft);
}
.hero-badge::before {
  content: "";
  width: 6px; height: 6px; border-radius: 50%;
  background: var(--color-accent);
}

/* Decorative side mark */
.hero-mark {
  position: absolute;
  top: -40px; right: -40px;
  font-family: var(--font-display);
  font-size: 12rem;
  color: var(--color-line-soft);
  opacity: 0.7;
  pointer-events: none;
  user-select: none;
  letter-spacing: -0.05em;
}

/* =========== Marquee =========== */
.marquee {
  border-top: 1px solid var(--color-line);
  border-bottom: 1px solid var(--color-line);
  background: var(--color-surface-warm);
  overflow: hidden;
  padding: 1rem 0;
}
.marquee-track {
  display: flex;
  gap: 3rem;
  animation: marquee 36s linear infinite;
  white-space: nowrap;
  will-change: transform;
}
@media (max-width: 960px) {
  .marquee-track { animation-duration: 18s; }
}
@media (max-width: 640px) {
  .marquee-track { animation-duration: 10s; gap: 2rem; }
}
@media (max-width: 420px) {
  .marquee-track { animation-duration: 8s; gap: 1.6rem; }
}
.marquee-item {
  font-family: var(--font-display);
  font-style: italic;
  font-size: 1.4rem;
  color: var(--color-ink);
  display: inline-flex;
  align-items: center;
  gap: 3rem;
}
.marquee-item::after {
  content: "✦";
  color: var(--color-accent);
  font-style: normal;
  font-size: 0.9rem;
}
@keyframes marquee {
  from { transform: translateX(0); }
  to   { transform: translateX(-50%); }
}

/* =========== Methodology / Features =========== */
.section-head {
  display: grid;
  grid-template-columns: 1fr 1.2fr;
  gap: clamp(2rem, 5vw, 5rem);
  margin-bottom: var(--space-6);
  align-items: end;
}
.section-head .lead { margin: 0; }

.feature-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0;
  border-top: 1px solid var(--color-line);
}
.feature {
  padding: 2.2rem 1.8rem 2.2rem 0;
  border-bottom: 1px solid var(--color-line);
  border-right: 1px solid var(--color-line);
  position: relative;
}
.feature:nth-child(3n) { border-right: none; padding-right: 0; }
.feature:nth-child(3n+1) { padding-left: 0; }
.feature:nth-child(3n+2),
.feature:nth-child(3n) { padding-left: 1.8rem; }

.feature-num {
  font-family: var(--font-display);
  font-size: 2.4rem;
  font-weight: 400;
  color: var(--color-accent);
  letter-spacing: 0.02em;
  margin-bottom: 1.2rem;
  display: block;
  line-height: 1;
}
.feature h3 { margin-bottom: 0.7rem; }
.feature p { margin: 0; color: var(--color-ink-soft); font-size: 0.96rem; }

/* =========== Course preview =========== */
.courses-section { background: var(--color-surface-warm); }
.course-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: clamp(1.5rem, 3vw, 2.5rem);
}

/* Compact tiles (6-up on home) */
.course-tiles {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: clamp(1.2rem, 2.4vw, 2rem);
}
.course-tile {
  display: block;
  text-decoration: none;
  color: inherit;
  transition: transform var(--transition);
}
.course-tile:hover { transform: translateY(-3px); }
.course-tile-thumb {
  aspect-ratio: 4 / 3;
  border-radius: 4px;
  overflow: hidden;
  background: var(--color-line-soft);
  position: relative;
  margin-bottom: 1rem;
  border: 1px solid var(--color-line);
}
.course-tile-thumb img {
  width: 100%; height: 100%;
  object-fit: cover;
  display: block;
  transition: transform 600ms ease;
}
.course-tile:hover .course-tile-thumb img { transform: scale(1.04); }
.course-tile-thumb::after {
  content: "";
  position: absolute; inset: 0;
  background: linear-gradient(180deg, rgba(20,17,15,0) 50%, rgba(20,17,15,0.35) 100%);
  pointer-events: none;
}
.course-tile-tag {
  position: absolute;
  top: 0.9rem; left: 0.9rem;
  background: rgba(250, 247, 242, 0.92);
  color: var(--color-ink);
  padding: 0.3rem 0.7rem;
  font-size: 0.66rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  font-weight: 500;
  border-radius: 999px;
  z-index: 1;
}
.course-tile h3 {
  font-size: 1.2rem;
  margin: 0 0 0.3rem;
  letter-spacing: 0;
}
.course-tile small {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  font-size: 0.78rem;
  color: var(--color-ink-soft);
  font-family: var(--font-body);
}
.course-tile small::after {
  content: "→";
  color: var(--color-accent);
  transition: transform var(--transition);
}
.course-tile:hover small::after { transform: translateX(3px); }
.course-card {
  background: var(--color-bg);
  border: 1px solid var(--color-line);
  border-radius: 4px;
  overflow: hidden;
  transition: transform var(--transition), box-shadow var(--transition);
  display: flex;
  flex-direction: column;
}
.course-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-card); }
.course-card .thumb {
  aspect-ratio: 16 / 10;
  position: relative;
  background: linear-gradient(135deg, #efe4d2 0%, #c8a884 100%);
  overflow: hidden;
}
.course-card .thumb img { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; }
.course-card .thumb svg { position: absolute; inset: 0; margin: auto; width: 60%; height: 60%; opacity: 0.5; }
.course-card .body { padding: 2rem; flex: 1; display: flex; flex-direction: column; }
.course-card .tag {
  font-size: 0.72rem;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--color-accent);
  font-weight: 600;
  margin-bottom: 0.6rem;
}
.course-card h3 { margin-bottom: 0.8rem; }
.course-card p { color: var(--color-ink-soft); }
.course-card .meta {
  display: flex;
  gap: 1.4rem;
  flex-wrap: wrap;
  margin-top: auto;
  padding-top: 1.4rem;
  border-top: 1px solid var(--color-line);
}
.course-card .meta span {
  font-size: 0.78rem;
  letter-spacing: 0.06em;
  color: var(--color-muted);
  display: flex;
  align-items: center;
  gap: 0.4rem;
}

/* =========== Editorial split =========== */
.split {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: clamp(2rem, 5vw, 5rem);
  align-items: center;
}
.split-visual {
  aspect-ratio: 4 / 5;
  background:
    linear-gradient(180deg, rgba(31,26,22,0.0) 60%, rgba(31,26,22,0.25)),
    linear-gradient(135deg, #d4b896 0%, #7a5a3d 100%);
  border-radius: 2px;
  position: relative;
  overflow: hidden;
}
.split-visual img { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; }
.split-visual .stamp {
  position: absolute;
  bottom: 1.6rem; left: 1.6rem;
  color: var(--color-bg);
  font-family: var(--font-display);
  font-style: italic;
  font-size: 1.4rem;
  line-height: 1.2;
  max-width: 60%;
}

/* =========== Stats band =========== */
.stats {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 0;
  border-top: 1px solid var(--color-line);
  border-bottom: 1px solid var(--color-line);
}
.stat {
  padding: 2.4rem 1.5rem;
  text-align: center;
  border-right: 1px solid var(--color-line);
}
.stat:last-child { border-right: none; }
.stat .num {
  font-family: var(--font-display);
  font-size: clamp(2.4rem, 4vw, 3.3rem);
  color: var(--color-ink);
  display: block;
  line-height: 1;
}
.stat .num em { color: var(--color-accent); font-style: normal; }
.stat .lbl {
  font-size: 0.72rem;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--color-muted);
  margin-top: 0.7rem;
  display: block;
}

/* =========== Testimonials =========== */
.testimonial {
  max-width: 880px;
  margin: 0 auto;
  text-align: center;
}
.testimonial blockquote {
  font-family: var(--font-display);
  font-size: clamp(1.6rem, 3vw, 2.3rem);
  font-style: italic;
  font-weight: 300;
  color: var(--color-ink);
  margin: 0 0 2rem;
  line-height: 1.35;
}
.testimonial blockquote::before { content: "“"; color: var(--color-accent); }
.testimonial blockquote::after  { content: "”"; color: var(--color-accent); }
.testimonial-meta {
  font-size: 0.8rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--color-muted);
}

/* =========== CTA strip =========== */
.cta-strip {
  background: var(--color-ink);
  color: var(--color-bg);
  padding: clamp(3.5rem, 6vw, 5rem) 0;
  position: relative;
  overflow: hidden;
}
.cta-strip h2 { color: var(--color-bg); }
.cta-strip p  { color: rgba(250, 247, 242, 0.72); }
.cta-strip .btn-primary { background: var(--color-bg); color: var(--color-ink); }
.cta-strip .btn-primary:hover { background: var(--color-champagne); color: var(--color-ink); }
.cta-strip .btn-outline { color: var(--color-bg); border-color: rgba(250,247,242,0.4); }
.cta-strip .btn-outline:hover { background: var(--color-bg); color: var(--color-ink); }
.cta-grid {
  display: grid;
  grid-template-columns: 1.1fr 1fr;
  gap: 3rem;
  align-items: center;
}

/* =========== Footer =========== */
.site-footer {
  background: #14110f;
  color: rgba(250, 247, 242, 0.72);
  padding: clamp(3rem, 6vw, 5rem) 0 1.6rem;
}
.site-footer h4 {
  color: var(--color-bg);
  font-size: 0.78rem;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  margin-bottom: 1.2rem;
}
.footer-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr 1fr;
  gap: clamp(1.5rem, 4vw, 3rem);
  padding-bottom: 2.5rem;
  border-bottom: 1px solid rgba(250,247,242,0.12);
}
.footer-brand .brand { color: var(--color-bg); }
.footer-brand .brand-mark { color: var(--color-bg); background: transparent; }
.footer-brand .brand-name small { color: rgba(250,247,242,0.5); }
.footer-brand p { color: rgba(250,247,242,0.6); margin-top: 1rem; max-width: 32ch; }
.footer-grid ul { list-style: none; padding: 0; margin: 0; }
.footer-grid li { margin-bottom: 0.7rem; }
.footer-grid a { color: rgba(250,247,242,0.72); font-size: 0.92rem; }
.footer-grid a:hover { color: var(--color-champagne); }
.footer-follow {
  padding: 2.4rem 0;
  text-align: center;
  border-bottom: 1px solid rgba(250,247,242,0.12);
}
.footer-follow .eyebrow {
  color: var(--color-champagne);
  margin-bottom: 1.4rem;
}
.footer-follow .socials {
  justify-content: center;
  gap: 1rem;
}
.footer-follow .socials a {
  width: 56px;
  height: 56px;
  border: 1px solid rgba(250,247,242,0.22);
}
.footer-follow .socials a:hover {
  background: var(--color-champagne);
  color: var(--color-ink);
  border-color: var(--color-champagne);
  transform: translateY(-2px);
}
.footer-follow .socials svg {
  width: 22px;
  height: 22px;
}

.footer-bottom {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-top: 1.6rem;
  font-size: 0.8rem;
  color: rgba(250,247,242,0.5);
  flex-wrap: wrap;
  gap: 1rem;
}
.footer-legal {
  display: flex;
  gap: 1.4rem;
  list-style: none;
  padding: 0;
  margin: 0;
}
.footer-legal a {
  font-size: 0.8rem;
  color: rgba(250,247,242,0.5);
  transition: color var(--transition);
}
.footer-legal a:hover { color: var(--color-champagne); }
.socials { display: flex; gap: 0.8rem; align-items: center; }
.socials a {
  width: 42px; height: 42px;
  border: 1px solid rgba(250,247,242,0.18);
  border-radius: 50%;
  display: grid; place-items: center;
  transition: all var(--transition);
}
.socials a:hover { background: var(--color-champagne); color: var(--color-ink); border-color: var(--color-champagne); }
.socials svg { width: 18px; height: 18px; }

/* =========== Page header (for inner pages) =========== */
.page-head {
  padding: clamp(2rem, 4.5vw, 3.5rem) 0 clamp(1.5rem, 3vw, 2.4rem);
  background: linear-gradient(180deg, var(--color-surface-warm) 0%, var(--color-bg) 100%);
  border-bottom: 1px solid var(--color-line);
}
.page-head .crumbs {
  font-size: 0.78rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--color-muted);
  margin-bottom: 1.2rem;
}
.page-head h1 { max-width: 18ch; margin-bottom: 1.2rem; }
.page-head .lead { max-width: 60ch; }

/* =========== About page =========== */
.bio-grid {
  display: grid;
  grid-template-columns: 0.9fr 1.1fr;
  gap: clamp(2.5rem, 6vw, 5rem);
  align-items: start;
}
.bio-portrait {
  aspect-ratio: 4/5;
  border-radius: 2px;
  background: linear-gradient(160deg, #d4b896 10%, #7a5a3d 90%);
  position: relative;
  overflow: hidden;
}
.bio-portrait img { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; }
.bio-portrait .signature {
  position: absolute;
  bottom: 1.5rem; left: 1.5rem; right: 1.5rem;
  color: var(--color-bg);
  font-family: var(--font-display);
  font-style: italic;
  font-size: 2rem;
  line-height: 1;
}
.bio-portrait .signature small {
  display: block;
  font-family: var(--font-body);
  font-size: 0.7rem;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  font-style: normal;
  margin-top: 0.5rem;
  opacity: 0.85;
}

.values {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 0;
  margin-top: 3rem;
  border-top: 1px solid var(--color-line);
}
.values div {
  padding: 1.6rem 1.4rem 1.6rem 0;
  border-bottom: 1px solid var(--color-line);
}
.values div:nth-child(2n) { padding-left: 1.4rem; padding-right: 0; border-left: 1px solid var(--color-line); }
.values h4 { margin-bottom: 0.4rem; font-size: 0.95rem; }
.values p { margin: 0; font-size: 0.92rem; color: var(--color-ink-soft); }

/* =========== Courses page =========== */
.course-detail {
  display: grid;
  grid-template-columns: 0.9fr 1.1fr;
  gap: clamp(2rem, 5vw, 4rem);
  padding: clamp(3rem, 6vw, 5rem) 0;
  border-bottom: 1px solid var(--color-line);
  align-items: start;
}
.course-detail:nth-child(even) { direction: rtl; }
.course-detail:nth-child(even) > * { direction: ltr; }
.course-detail .visual {
  aspect-ratio: 4 / 5;
  background: linear-gradient(135deg, #efe4d2 0%, #c8a884 100%);
  border-radius: 2px;
  position: relative;
  overflow: hidden;
}
.course-detail .visual img { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; }
.course-detail .visual .label {
  position: absolute;
  top: 1.2rem; left: 1.2rem;
  background: rgba(20, 17, 15, 0.7);
  color: var(--color-bg);
  padding: 0.4rem 0.8rem;
  font-size: 0.72rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  border-radius: 999px;
}
.course-detail h2 { margin-bottom: 1rem; }
.course-detail .modules {
  list-style: none;
  margin: 1.5rem 0 0;
  padding: 0;
  border-top: 1px solid var(--color-line);
}
.course-detail .modules li {
  display: flex;
  gap: 1rem;
  padding: 0.95rem 0;
  border-bottom: 1px solid var(--color-line);
  font-size: 0.96rem;
  color: var(--color-ink-soft);
}
.course-detail .modules li::before {
  content: "—";
  color: var(--color-accent);
  font-family: var(--font-display);
}

/* =========== Contact =========== */
.contact-grid {
  display: grid;
  grid-template-columns: 1.1fr 1fr;
  gap: clamp(2rem, 5vw, 4rem);
  align-items: start;
}
.contact-form {
  display: grid;
  gap: 1.2rem;
  background: var(--color-surface);
  padding: clamp(1.8rem, 3vw, 2.6rem);
  border: 1px solid var(--color-line);
  border-radius: 4px;
}
.field { display: flex; flex-direction: column; gap: 0.4rem; }
.field label {
  font-size: 0.74rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--color-muted);
}
.field input,
.field textarea,
.field select {
  font: inherit;
  padding: 0.85rem 0;
  border: none;
  border-bottom: 1px solid var(--color-line);
  background: transparent;
  color: var(--color-ink);
  outline: none;
  transition: border var(--transition);
}
.field input:focus,
.field textarea:focus,
.field select:focus { border-bottom-color: var(--color-accent); }
.field textarea { min-height: 110px; resize: vertical; }
.row-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 1.2rem; }

.form-status {
  padding: 0.85rem 1rem;
  border-radius: 4px;
  font-size: 0.92rem;
  line-height: 1.5;
  border: 1px solid transparent;
}
.form-status--sending {
  background: var(--color-line-soft);
  color: var(--color-ink-soft);
  border-color: var(--color-line);
}
.form-status--success {
  background: #ecf5ee;
  color: #2e6b3e;
  border-color: #c6dfcd;
}
.form-status--error {
  background: #faecec;
  color: #963838;
  border-color: #e2c0c0;
}

.contact-info ul { list-style: none; padding: 0; margin: 1.5rem 0 0; }
.contact-info li {
  padding: 1.2rem 0;
  border-bottom: 1px solid var(--color-line);
  display: grid;
  grid-template-columns: 28px 1fr;
  gap: 1rem;
  align-items: center;
}
.contact-info li small {
  display: block;
  font-size: 0.72rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--color-muted);
  margin-bottom: 0.2rem;
}
.contact-info svg { width: 18px; height: 18px; color: var(--color-accent); }
.contact-info a { color: var(--color-ink); }
.contact-info a:hover { color: var(--color-accent); }

/* =========== Legal pages =========== */
.legal-wrap {
  display: grid;
  grid-template-columns: 220px 1fr;
  gap: clamp(2rem, 5vw, 4rem);
  align-items: start;
}
.legal-toc {
  position: sticky;
  top: 110px;
  padding: 1.4rem 1.4rem 1.6rem;
  background: var(--color-surface-warm);
  border: 1px solid var(--color-line);
  border-radius: 4px;
  font-size: 0.86rem;
}
.legal-toc h4 {
  margin: 0 0 0.8rem;
  font-size: 0.72rem;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--color-muted);
}
.legal-toc ol {
  list-style: none;
  padding: 0;
  margin: 0;
  counter-reset: leg;
}
.legal-toc li {
  counter-increment: leg;
  padding: 0.35rem 0;
  border-top: 1px solid var(--color-line);
}
.legal-toc li:first-child { border-top: none; }
.legal-toc a {
  display: flex;
  gap: 0.5rem;
  color: var(--color-ink-soft);
  font-size: 0.86rem;
  line-height: 1.4;
}
.legal-toc a::before {
  content: counter(leg, decimal-leading-zero);
  color: var(--color-accent);
  font-family: var(--font-display);
  font-size: 0.9rem;
  min-width: 1.6rem;
  font-weight: 500;
}
.legal-toc a:hover { color: var(--color-accent); }
.legal-content { max-width: 760px; }
.legal-content .effective {
  display: inline-block;
  background: var(--color-surface-warm);
  border-left: 3px solid var(--color-accent);
  padding: 0.6rem 1rem;
  font-size: 0.86rem;
  color: var(--color-ink-soft);
  margin-bottom: 2rem;
}
.legal-content section { padding-top: 2.6rem; scroll-margin-top: 110px; }
.legal-content section:first-of-type { padding-top: 0; }
.legal-content h2 {
  font-size: 1.7rem;
  margin-bottom: 1rem;
  display: flex;
  align-items: baseline;
  gap: 0.8rem;
}
.legal-content h2::before {
  content: attr(data-num);
  font-size: 1.05rem;
  color: var(--color-accent);
  font-family: var(--font-display);
  font-weight: 500;
  letter-spacing: 0.05em;
}
.legal-content h3 {
  font-size: 1.15rem;
  font-family: var(--font-body);
  font-weight: 600;
  letter-spacing: 0;
  margin-top: 1.6rem;
  margin-bottom: 0.5rem;
}
.legal-content p { font-size: 0.96rem; line-height: 1.72; }
.legal-content ul { padding-left: 1.2rem; margin: 0.8rem 0 1.6rem; }
.legal-content ul li {
  font-size: 0.96rem;
  line-height: 1.7;
  margin-bottom: 0.5rem;
  color: var(--color-ink-soft);
}
.legal-content a { color: var(--color-accent); text-decoration: underline; text-underline-offset: 3px; }
.legal-content a:hover { color: var(--color-accent-dark); }
@media (max-width: 960px) {
  .legal-wrap { grid-template-columns: 1fr; }
  .legal-toc { position: static; }
}

/* =========== Utilities =========== */
.center { text-align: center; }
.muted { color: var(--color-muted); }
.divider { height: 1px; background: var(--color-line); border: none; margin: var(--space-6) 0; }
/* Translation swap is handled by JS (script.js setLang) — see below for fallback */

/* =========== Responsive =========== */
@media (max-width: 960px) {
  .hero-grid { grid-template-columns: 1fr; }
  .hero-mark { font-size: 7rem; top: -20px; right: -10px; }
  .section-head { grid-template-columns: 1fr; }
  .feature-grid { grid-template-columns: repeat(2, 1fr); }
  .feature:nth-child(3n) { border-right: 1px solid var(--color-line); padding-right: 1.8rem; }
  .feature:nth-child(2n) { border-right: none; padding-right: 0; padding-left: 1.8rem; }
  .feature:nth-child(2n+1) { padding-left: 0; }
  .course-grid { grid-template-columns: 1fr; }
  .course-tiles { grid-template-columns: repeat(2, 1fr); }
  .stats { grid-template-columns: repeat(2, 1fr); }
  .stat:nth-child(2n) { border-right: none; }
  .split, .bio-grid, .course-detail, .contact-grid, .cta-grid {
    grid-template-columns: 1fr;
  }
  .course-detail:nth-child(even) { direction: ltr; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 640px) {
  .nav-links { display: none; }
  .nav-links.is-open {
    display: flex;
    flex-direction: column;
    position: absolute;
    top: 76px; left: 0; right: 0;
    background: var(--color-bg);
    padding: 1.5rem 1.5rem 2rem;
    border-bottom: 1px solid var(--color-line);
    gap: 1.2rem;
  }
  .menu-btn { display: grid; place-items: center; }
  .feature-grid { grid-template-columns: 1fr; }
  .feature { border-right: none !important; padding: 1.6rem 0 !important; }
  .course-tiles { grid-template-columns: repeat(2, 1fr); }
  .stats { grid-template-columns: 1fr; }
  .stat { border-right: none; border-bottom: 1px solid var(--color-line); }
  .stat:last-child { border-bottom: none; }
  .row-2 { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; }
  .hero-meta { flex-wrap: wrap; gap: 1.2rem; }
  .footer-bottom { justify-content: flex-start; }
}