/* ===== Tokens ===== */
:root {
  --ink-900: #0E1420;
  --ink-800: #141B2D;
  --ivory: #F5F3EE;
  --champagne: #C6A868;
  --champagne-dim: rgba(198, 168, 104, 0.5);
  --grey: #8A8F99;
  --border: rgba(198, 168, 104, 0.22);

  --font-display: "Fraunces", "Playfair Display", serif;
  --font-body: "Inter", -apple-system, sans-serif;

  --max-width: 1120px;
  --space-section: clamp(64px, 10vw, 128px);
  --nav-h: 73px;
}

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

body {
  margin: 0;
  background: var(--ink-900);
  color: var(--ivory);
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}

img { max-width: 100%; display: block; }

.skip-link {
  position: absolute;
  left: -999px;
  top: 0;
  background: var(--champagne);
  color: var(--ink-900);
  padding: 10px 16px;
  z-index: 100;
}
.skip-link:focus { left: 0; }

h1, h2, h3 {
  font-family: var(--font-display);
  font-weight: 500;
  margin: 0;
  color: var(--ivory);
}

/* ===== Nav ===== */
.nav {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(14, 20, 32, 0.85);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--border);
}
.nav__inner {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 18px 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.nav__logo {
  font-family: var(--font-display);
  font-size: 1.15rem;
  color: var(--ivory);
  text-decoration: none;
  letter-spacing: 0.02em;
}
.lang-switch {
  background: transparent;
  border: 1px solid var(--border);
  border-radius: 999px;
  padding: 6px 4px;
  cursor: pointer;
  font-family: var(--font-body);
  font-size: 0.8rem;
  color: var(--grey);
  display: flex;
  align-items: center;
  gap: 6px;
}
.lang-switch__opt {
  padding: 4px 10px;
  border-radius: 999px;
  transition: color 0.2s ease, background 0.2s ease;
  letter-spacing: 0.05em;
}
.lang-switch__opt.is-active {
  color: var(--ink-900);
  background: var(--champagne);
}
.lang-switch__sep { display: none; }

/* ===== Layout helpers ===== */
.section {
  padding: var(--space-section) 24px;
}
.section--alt { background: var(--ink-800); }
.section__inner {
  max-width: var(--max-width);
  margin: 0 auto;
}
.section__inner--narrow {
  max-width: 640px;
  text-align: center;
}
.section__title {
  font-size: clamp(1.8rem, 3.5vw, 2.6rem);
  margin-bottom: 40px;
}
.section__inner--narrow .section__title { margin-bottom: 16px; }

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

/* ===== Buttons ===== */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 14px 28px;
  border-radius: 4px;
  text-decoration: none;
  font-size: 0.95rem;
  font-weight: 500;
  letter-spacing: 0.01em;
  transition: transform 0.2s ease, background 0.2s ease, color 0.2s ease, border-color 0.2s ease;
  border: 1px solid transparent;
}
.btn--primary {
  background: var(--champagne);
  color: var(--ink-900);
}
.btn--primary:hover {
  transform: translateY(-2px);
  background: #d4b878;
}
.btn--ghost {
  background: transparent;
  color: var(--ivory);
  border-color: var(--border);
}
.btn--ghost:hover {
  border-color: var(--champagne);
  color: var(--champagne);
  transform: translateY(-2px);
}

/* ===== Hero ===== */
.hero {
  padding: 140px 24px 100px;
  background: radial-gradient(circle at 80% 0%, rgba(198,168,104,0.08), transparent 55%), var(--ink-900);
}
.hero__inner {
  max-width: var(--max-width);
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: 56px;
  align-items: center;
}
@media (min-width: 901px) {
  .hero {
    min-height: calc(100vh - var(--nav-h));
    padding: 64px 24px;
    display: flex;
    align-items: center;
  }
}
.eyebrow {
  text-transform: uppercase;
  letter-spacing: 0.18em;
  font-size: 0.75rem;
  color: var(--champagne);
  margin: 0 0 18px;
}
.hero__name {
  font-size: clamp(2.6rem, 6vw, 4rem);
  margin-bottom: 18px;
  line-height: 1.05;
}
.hero__title {
  font-size: clamp(1.2rem, 2.4vw, 1.5rem);
  color: var(--ivory);
  font-weight: 500;
  margin: 0 0 16px;
  line-height: 1.4;
}
.hero__sub {
  color: var(--grey);
  font-size: 1.05rem;
  max-width: 480px;
  margin: 0 0 36px;
}
.hero__ctas { display: flex; gap: 16px; flex-wrap: wrap; }

.hero__media { display: flex; justify-content: center; align-items: center; }
.hero__frame {
  width: min(400px, 100%);
  aspect-ratio: 4/5;
  border-radius: 6px;
  overflow: hidden;
  border: 1px solid var(--border);
  box-shadow: 0 30px 60px -20px rgba(0,0,0,0.6);
}
.hero__frame img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

/* ===== Authority strip ===== */
.authority {
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
  background: var(--ink-800);
  padding: 56px 24px;
}
.authority__inner {
  max-width: var(--max-width);
  margin: 0 auto;
}
.authority-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 28px 40px;
}
.authority-item {
  position: relative;
  border-left: 2px solid var(--champagne);
  padding-left: 18px;
}
.authority-item__claim {
  font-family: var(--font-display);
  font-size: 1.15rem;
  color: var(--ivory);
  line-height: 1.35;
  margin: 0 0 8px;
  transition: color 0.2s ease;
}
.authority-item__source {
  text-transform: uppercase;
  letter-spacing: 0.1em;
  font-size: 0.72rem;
  color: var(--champagne);
  margin: 0;
}
.authority-item__link {
  display: block;
  text-decoration: none;
  color: inherit;
  padding-right: 20px;
  transition: transform 0.2s ease;
}
.authority-item__link:hover {
  transform: translateX(3px);
}
.authority-item__link:hover .authority-item__claim {
  color: var(--champagne);
}
.authority-item__arrow {
  position: absolute;
  top: 0;
  right: 0;
  font-size: 0.85rem;
  color: var(--champagne-dim);
  transition: color 0.2s ease, transform 0.2s ease;
}
.authority-item__link:hover .authority-item__arrow {
  color: var(--champagne);
  transform: translate(2px, -2px);
}

/* ===== About ===== */
.about__body {
  display: grid;
  gap: 22px;
  max-width: 760px;
}
.about__body p { color: var(--ivory); font-size: 1.05rem; }

/* ===== Results ===== */
.results-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 40px 32px;
}
.stat__number {
  font-family: var(--font-display);
  font-size: clamp(2.6rem, 5vw, 3.6rem);
  color: var(--champagne);
  line-height: 1;
  margin-bottom: 10px;
}
.stat__label {
  color: var(--grey);
  font-size: 0.95rem;
  margin: 0;
  max-width: 260px;
}

/* ===== Projects ===== */
.projects-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.project-card {
  background: var(--ink-900);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 32px 28px;
  transition: transform 0.25s ease, border-color 0.25s ease;
}
.project-card:hover {
  transform: translateY(-6px);
  border-color: var(--champagne-dim);
}
.project-card h3 {
  font-size: 1.2rem;
  margin-bottom: 20px;
  min-height: 58px;
}
.project-card dl { margin: 0; }
.project-card dt {
  text-transform: uppercase;
  letter-spacing: 0.08em;
  font-size: 0.7rem;
  color: var(--champagne);
  margin-top: 16px;
}
.project-card dt:first-of-type { margin-top: 0; }
.project-card dd {
  margin: 6px 0 0;
  color: var(--grey);
  font-size: 0.92rem;
  line-height: 1.55;
}

/* ===== Skills ===== */
.skills-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 32px;
}
.skill-group h3 {
  font-size: 1rem;
  color: var(--ivory);
  margin-bottom: 16px;
  font-family: var(--font-body);
  font-weight: 600;
}
.tags { display: flex; flex-wrap: wrap; gap: 8px; }
.tag {
  border: 1px solid var(--border);
  color: var(--grey);
  font-size: 0.82rem;
  padding: 6px 12px;
  border-radius: 999px;
  transition: border-color 0.2s ease, color 0.2s ease;
}
.tag:hover { border-color: var(--champagne); color: var(--champagne); }

/* ===== Education ===== */
.education-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}
.edu-card {
  background: var(--ink-900);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 28px 22px;
  text-align: center;
  transition: transform 0.25s ease, border-color 0.25s ease;
}
.edu-card:hover {
  transform: translateY(-4px);
  border-color: var(--champagne-dim);
}
.edu-mono {
  width: 52px;
  height: 52px;
  margin: 0 auto 16px;
  border: 1px solid var(--champagne);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-display);
  font-size: 0.95rem;
  color: var(--champagne);
  letter-spacing: 0.02em;
}
.edu-mono--sm { font-size: 0.72rem; }
.edu-name {
  font-family: var(--font-display);
  font-size: 1.15rem;
  color: var(--ivory);
  margin-bottom: 8px;
  line-height: 1.3;
}
.edu-program {
  color: var(--champagne);
  font-size: 0.85rem;
  line-height: 1.4;
}

/* ===== Testimonials ===== */
.testimonials-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.testimonial {
  margin: 0;
  background: var(--ink-800);
  border-left: 2px solid var(--champagne);
  padding: 28px 26px;
  border-radius: 4px;
}
.testimonial p {
  font-family: var(--font-display);
  font-size: 1.02rem;
  line-height: 1.55;
  color: var(--ivory);
  margin: 0 0 20px;
}
.testimonial footer { display: flex; flex-direction: column; gap: 2px; }
.testimonial__name { color: var(--champagne); font-size: 0.9rem; font-weight: 600; }
.testimonial__role { color: var(--grey); font-size: 0.8rem; }

/* ===== Contact ===== */
.contact__sub { color: var(--grey); font-size: 1.05rem; margin-bottom: 36px; }
.contact__ctas {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 16px;
}

/* ===== Footer ===== */
.footer {
  border-top: 1px solid var(--border);
  padding: 28px 24px;
}
.footer__inner {
  max-width: var(--max-width);
  margin: 0 auto;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 12px;
  color: var(--grey);
  font-size: 0.85rem;
}
.footer__links { display: flex; gap: 18px; }
.footer__links a {
  color: var(--champagne-dim);
  text-decoration: none;
  letter-spacing: 0.03em;
  transition: color 0.2s ease;
}
.footer__links a:hover { color: var(--champagne); }

/* ===== Horizontal sliders (mobile carousels) ===== */
.hslider__dots {
  display: none;
}
.hslider__dot {
  width: 8px;
  height: 8px;
  padding: 0;
  border: none;
  border-radius: 50%;
  background: var(--border);
  cursor: pointer;
  transition: background 0.2s ease, transform 0.2s ease;
}
.hslider__dot.is-active {
  background: var(--champagne);
  transform: scale(1.35);
}

@media (max-width: 680px) {
  .hslider__track {
    display: flex !important;
    gap: 18px;
    overflow-x: auto;
    scroll-snap-type: x mandatory;
    -webkit-overflow-scrolling: touch;
    scrollbar-width: none;
    margin: 0 -20px;
    padding: 4px 20px 8px;
  }
  .hslider__track::-webkit-scrollbar { display: none; }
  .hslider__track > * {
    flex: 0 0 86%;
    scroll-snap-align: center;
  }
  .hslider__dots {
    display: flex;
    justify-content: center;
    gap: 8px;
    margin-top: 24px;
  }

  .results-grid.hslider__track .stat { text-align: center; }
  .results-grid.hslider__track .stat__number { font-size: clamp(3.4rem, 20vw, 4.6rem); }
  .results-grid.hslider__track .stat__label { max-width: none; margin: 0 auto; }

  .skills-grid.hslider__track .skill-group {
    background: var(--ink-800);
    border: 1px solid var(--border);
    border-radius: 8px;
    padding: 32px 26px;
    text-align: center;
  }
  .skills-grid.hslider__track .tags { justify-content: center; }
}

/* ===== Responsive ===== */
@media (max-width: 900px) {
  .hero__inner { grid-template-columns: 1fr; }
  .hero__media { order: -1; }
  .hero__frame { width: min(280px, 60vw); margin: 0 auto; }
  .results-grid { grid-template-columns: repeat(2, 1fr); }
  .projects-grid { grid-template-columns: 1fr; }
  .skills-grid { grid-template-columns: repeat(2, 1fr); }
  .education-grid { grid-template-columns: repeat(2, 1fr); }
  .testimonials-grid { grid-template-columns: 1fr; }
}

@media (max-width: 520px) {
  .hero { padding: 120px 20px 72px; }
  .section { padding: 56px 20px; }
  .results-grid { grid-template-columns: repeat(2, 1fr); gap: 32px 20px; }
  .skills-grid { grid-template-columns: 1fr; }
  .education-grid { grid-template-columns: 1fr; }
  .hero__ctas .btn, .contact__ctas .btn { width: 100%; justify-content: center; }
  .hero__ctas, .contact__ctas { flex-direction: column; }
}