/* =========================================================
   Doç. Dr. Kaan Kapan — Academic Personal Site
   Premium geographic / geopolitical design system
   ========================================================= */

:root {
  --navy-950: #06131F;
  --navy-900: #0A1E2D;
  --navy-800: #102F42;
  --teal-700: #0B6068;
  --teal-500: #18A8A0;
  --turquoise: #42D4C8;
  --gold: #C7A96B;
  --sand: #E7DCC4;
  --ivory: #F6F3EB;
  --white: #FFFFFF;
  --text-dark: #17212A;
  --muted: #6B7782;
  --accent-red: #B53A3A;

  --font-display: "Cormorant Garamond", Georgia, "Times New Roman", serif;
  --font-body: "Manrope", "Segoe UI", sans-serif;

  --header-h: 4.5rem;
  --container: min(1180px, calc(100% - 2.5rem));
  --radius: 4px;
  --ease: cubic-bezier(0.22, 1, 0.36, 1);
  --shadow-soft: 0 20px 60px rgba(6, 19, 31, 0.18);

  --grad-navy-teal: linear-gradient(135deg, var(--navy-950), var(--teal-700));
  --grad-turquoise: linear-gradient(160deg, rgba(66, 212, 200, 0.35), rgba(16, 47, 66, 0.05));
  --grad-gold: linear-gradient(120deg, var(--gold), #e8d9b0);
}

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

html {
  scroll-behavior: auto;
  -webkit-text-size-adjust: 100%;
}

body {
  margin: 0;
  font-family: var(--font-body);
  font-size: 1rem;
  line-height: 1.65;
  color: var(--text-dark);
  background: var(--ivory);
  overflow-x: hidden;
}

body.is-locked { overflow: hidden; }

img, svg, canvas { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
button, input, textarea { font: inherit; color: inherit; }
ul, ol { margin: 0; padding: 0; list-style: none; }
h1, h2, h3, h4 { margin: 0; font-family: var(--font-display); font-weight: 600; line-height: 1.15; letter-spacing: -0.01em; }
p { margin: 0; }

.container { width: var(--container); margin-inline: auto; }

.visually-hidden {
  position: absolute !important;
  width: 1px; height: 1px;
  padding: 0; margin: -1px;
  overflow: hidden; clip: rect(0,0,0,0);
  white-space: nowrap; border: 0;
}

.skip-link {
  position: absolute;
  left: 1rem; top: -4rem;
  z-index: 10000;
  padding: 0.75rem 1rem;
  background: var(--gold);
  color: var(--navy-950);
  font-weight: 600;
  border-radius: var(--radius);
  transition: top 0.2s var(--ease);
}
.skip-link:focus { top: 1rem; }

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

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  min-height: 44px;
  padding: 0.7rem 1.35rem;
  border: 1px solid transparent;
  border-radius: var(--radius);
  font-weight: 600;
  font-size: 0.92rem;
  letter-spacing: 0.01em;
  cursor: pointer;
  transition: transform 0.35s var(--ease), background 0.3s, border-color 0.3s, color 0.3s, box-shadow 0.3s;
  will-change: transform;
}
.btn--teal { background: var(--teal-700); color: var(--white); }
.btn--teal:hover { background: #094F56; }
.btn--gold { background: var(--grad-gold); color: var(--navy-950); }
.btn--gold:hover { box-shadow: 0 8px 24px rgba(199, 169, 107, 0.35); }
.btn--ghost {
  background: transparent;
  border-color: rgba(255,255,255,0.35);
  color: var(--white);
}
.btn--ghost:hover { border-color: var(--turquoise); color: var(--turquoise); }
.btn--link {
  background: transparent;
  color: var(--gold);
  padding-inline: 0.5rem;
  border: 0;
  text-decoration: underline;
  text-underline-offset: 4px;
}
.btn--sm { min-height: 40px; padding: 0.5rem 1rem; font-size: 0.82rem; }

/* ---------- Preloader ---------- */
.preloader {
  position: fixed;
  inset: 0;
  z-index: 9999;
  display: grid;
  place-items: center;
  background: var(--navy-950);
  color: var(--ivory);
}
.preloader__top,
.preloader__bottom {
  position: absolute;
  left: 0; right: 0;
  height: 50%;
  background: var(--navy-950);
  z-index: 1;
}
.preloader__top { top: 0; }
.preloader__bottom { bottom: 0; }
.preloader__content {
  position: relative;
  z-index: 2;
  text-align: center;
  padding: 2rem;
}
.preloader__globe {
  position: relative;
  width: min(180px, 42vw);
  margin: 0 auto 1.25rem;
}
.preloader__globe-svg { width: 100%; animation: globeSpin 18s linear infinite; }
.preloader__route {
  stroke-dasharray: 120;
  stroke-dashoffset: 120;
  animation: drawRoute 2.2s var(--ease) forwards;
}
.preloader__mono {
  position: absolute;
  inset: 0;
  display: grid;
  place-items: center;
  font-family: var(--font-display);
  font-size: 2rem;
  color: var(--gold);
  letter-spacing: 0.08em;
}
.preloader__name {
  font-family: var(--font-display);
  font-size: clamp(1.35rem, 3vw, 1.85rem);
  margin-bottom: 0.35rem;
}
.preloader__tag {
  font-size: 0.78rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: rgba(246, 243, 235, 0.55);
  margin-bottom: 1.5rem;
}
.preloader__progress-wrap {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  justify-content: center;
}
.preloader__bar {
  width: min(220px, 50vw);
  height: 2px;
  background: rgba(255,255,255,0.12);
  overflow: hidden;
}
.preloader__bar-fill {
  display: block;
  height: 100%;
  width: 0%;
  background: var(--grad-gold);
}
.preloader__count {
  font-variant-numeric: tabular-nums;
  font-size: 0.85rem;
  color: var(--turquoise);
  min-width: 2.5rem;
  text-align: left;
}
.preloader.is-exiting .preloader__content { opacity: 0; transition: opacity 0.35s; }
.preloader.is-done,
.preloader[hidden] {
  display: none !important;
  visibility: hidden;
  pointer-events: none;
}

@keyframes globeSpin {
  to { transform: rotate(360deg); }
}
@keyframes drawRoute {
  to { stroke-dashoffset: 0; }
}

/* ---------- Header ---------- */
.site-header {
  position: fixed;
  inset-inline: 0;
  top: 0;
  z-index: 1000;
  height: var(--header-h);
  transition: background 0.35s, backdrop-filter 0.35s, height 0.35s, border-color 0.35s;
  border-bottom: 1px solid transparent;
}
.site-header.is-scrolled {
  height: 3.75rem;
  background: rgba(6, 19, 31, 0.78);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-bottom-color: rgba(66, 212, 200, 0.18);
}
.header__inner {
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.75rem;
  min-width: 0;
}
.brand {
  position: relative;
  display: block;
  flex: 0 0 auto;
  width: clamp(10rem, 48vw, 14.25rem);
  height: 2.7rem;
  color: var(--white);
  /* Reserve space so nav never shifts when logo swaps/loads */
  overflow: visible;
}
.brand__logo {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: contain;
  object-position: left center;
  display: block;
  pointer-events: none;
  transition: opacity 0.3s ease;
  user-select: none;
  -webkit-user-drag: none;
}
.brand__logo--light { opacity: 1; }
.brand__logo--dark { opacity: 0; }
.site-header.is-scrolled .brand__logo--light { opacity: 0; }
.site-header.is-scrolled .brand__logo--dark { opacity: 1; }
.brand__mono {
  width: 2.4rem; height: 2.4rem;
  display: grid; place-items: center;
  border: 1px solid rgba(199, 169, 107, 0.55);
  color: var(--gold);
  font-family: var(--font-display);
  font-size: 1rem;
  letter-spacing: 0.06em;
}
.brand__name {
  font-size: 0.92rem;
  font-weight: 600;
  white-space: nowrap;
}
.nav-desktop {
  display: none;
  flex: 1 1 auto;
  min-width: 0;
  justify-content: center;
  overflow: hidden;
  margin-inline: 0.25rem;
}
.nav-list {
  display: flex;
  gap: 0;
  flex-wrap: nowrap;
  justify-content: center;
  align-items: center;
  max-width: 100%;
}
.nav-list a {
  color: rgba(246, 243, 235, 0.78);
  font-size: 0.78rem;
  font-weight: 500;
  padding: 0.45rem 0.55rem;
  border-bottom: 1px solid transparent;
  transition: color 0.25s, border-color 0.25s;
  white-space: nowrap;
  flex: 0 0 auto;
}
.nav-list a:hover,
.nav-list a.is-active {
  color: var(--turquoise);
  border-bottom-color: var(--turquoise);
}
.header__actions {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  flex: 0 0 auto;
  position: relative;
  z-index: 2;
  margin-left: 0.25rem;
}
.lang-switch {
  display: inline-flex;
  border: 1px solid rgba(255,255,255,0.2);
  border-radius: var(--radius);
  overflow: hidden;
}
.lang-btn {
  background: transparent;
  border: 0;
  color: rgba(255,255,255,0.65);
  padding: 0.35rem 0.55rem;
  min-height: 36px;
  min-width: 36px;
  cursor: pointer;
}
.lang-btn.is-active {
  background: rgba(66, 212, 200, 0.18);
  color: var(--turquoise);
}
.header__social { display: none; gap: 0.35rem; }
.icon-link {
  width: 36px; height: 36px;
  display: grid; place-items: center;
  color: rgba(255,255,255,0.75);
  border-radius: var(--radius);
  transition: color 0.25s, background 0.25s;
}
.icon-link:hover { color: var(--gold); background: rgba(255,255,255,0.06); }
.icon-link svg { width: 18px; height: 18px; }
.header__actions .btn--gold { display: none; }
.menu-toggle {
  width: 44px; height: 44px;
  display: grid;
  place-content: center;
  gap: 5px;
  background: transparent;
  border: 1px solid rgba(255,255,255,0.25);
  border-radius: var(--radius);
  cursor: pointer;
  padding: 0;
}
.menu-toggle span {
  display: block;
  width: 18px; height: 1.5px;
  background: var(--white);
  transition: transform 0.3s, opacity 0.3s;
}
.menu-toggle[aria-expanded="true"] span:nth-child(1) { transform: translateY(6.5px) rotate(45deg); }
.menu-toggle[aria-expanded="true"] span:nth-child(2) { opacity: 0; }
.menu-toggle[aria-expanded="true"] span:nth-child(3) { transform: translateY(-6.5px) rotate(-45deg); }

.mobile-menu {
  position: fixed;
  inset: 0;
  z-index: 990;
  display: grid;
  place-items: center;
  background: rgba(6, 19, 31, 0.96);
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.4s var(--ease);
}
.mobile-menu.is-open {
  opacity: 1;
  pointer-events: auto;
}
.mobile-menu[hidden] { display: none; }
.mobile-menu.is-open[hidden] { display: grid; }
.mobile-menu__bg {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(66,212,200,0.05) 1px, transparent 1px),
    linear-gradient(90deg, rgba(66,212,200,0.05) 1px, transparent 1px),
    radial-gradient(circle at 30% 40%, rgba(181,58,58,0.08), transparent 40%);
  background-size: 48px 48px, 48px 48px, auto;
  animation: mapDrift 20s linear infinite;
  opacity: 0.7;
}
.mobile-menu__nav {
  position: relative;
  text-align: center;
  padding: 2rem;
}
.mobile-menu__nav ul {
  display: grid;
  gap: 0.35rem;
  margin-bottom: 2rem;
}
.mobile-menu__nav a {
  display: block;
  color: var(--ivory);
  font-family: var(--font-display);
  font-size: clamp(1.5rem, 5vw, 2.2rem);
  padding: 0.55rem;
  transition: color 0.25s;
}
.mobile-menu__nav a:hover { color: var(--turquoise); }

@keyframes mapDrift {
  to { background-position: 48px 48px, 48px 0, 0 0; }
}

/* ---------- Hero ---------- */
/* Light-theme hero */
.hero {
  position: relative;
  min-height: 100vh;
  min-height: 100svh;
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: calc(var(--header-h) + 2rem) 0 4rem;
  background:
    radial-gradient(ellipse 55% 50% at 78% 42%, rgba(66, 212, 200, 0.16), transparent 60%),
    radial-gradient(ellipse 40% 35% at 20% 20%, rgba(199, 169, 107, 0.12), transparent 55%),
    linear-gradient(165deg, #FBF9F4 0%, var(--ivory) 45%, #EDE6D8 100%);
  color: var(--text-dark);
  overflow: visible;
}
.hero__grid-bg {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(16, 47, 66, 0.05) 1px, transparent 1px),
    linear-gradient(90deg, rgba(16, 47, 66, 0.05) 1px, transparent 1px);
  background-size: 72px 72px;
  mask-image: radial-gradient(ellipse at 70% 40%, black 18%, transparent 78%);
  pointer-events: none;
}
.hero__grid {
  position: relative;
  display: grid;
  gap: 2.5rem;
  align-items: center;
}
.hero__eyebrow {
  font-size: clamp(0.95rem, 1.35vw, 1.15rem);
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--teal-700);
  margin-bottom: 1.15rem;
  font-weight: 600;
  text-align: center;
  width: 100%;
}
.hero__title {
  font-size: clamp(2.6rem, 7vw, 6.2rem);
  font-weight: 600;
  margin-bottom: 1rem;
  max-width: 12ch;
  color: var(--navy-900);
}
.reveal-mask {
  display: block;
  overflow: hidden;
}
.reveal-mask > span {
  display: block;
  transform: translateY(110%);
}
.hero__subtitle {
  font-size: clamp(1rem, 2vw, 1.25rem);
  color: var(--teal-700);
  margin-bottom: 1rem;
  max-width: 34ch;
  font-weight: 500;
}
.hero__intro {
  color: var(--muted);
  max-width: 42ch;
  margin-bottom: 1.75rem;
  font-size: 0.98rem;
}
.hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  align-items: center;
}
.hero .btn--ghost {
  border-color: rgba(16, 47, 66, 0.22);
  color: var(--navy-800);
}
.hero .btn--ghost:hover {
  border-color: var(--teal-500);
  color: var(--teal-700);
  background: rgba(24, 168, 160, 0.06);
}
.hero .btn--link { color: var(--teal-700); }

.hero__visual {
  position: relative;
  display: grid;
  place-items: center;
  min-height: clamp(360px, 54vw, 580px);
  overflow: visible;
}
.hero__globe-wrap {
  position: relative;
  z-index: 1;
  width: min(100%, 520px);
  aspect-ratio: 1;
  display: grid;
  place-items: center;
  cursor: grab;
  border-radius: 50%;
  overflow: visible;
  background: transparent;
  box-shadow: none;
  transition: transform 0.55s var(--ease);
}
.hero__globe-wrap.is-interactive { pointer-events: auto; }
.hero__globe-wrap:active { cursor: grabbing; }
.hero__globe-wrap.is-hot {
  transform: scale(1.03);
}
.hero__globe-glow {
  position: absolute;
  inset: 14%;
  border-radius: 50%;
  background:
    radial-gradient(circle at 35% 30%, rgba(255, 255, 255, 0.8), transparent 42%),
    radial-gradient(circle at 50% 55%, rgba(66, 212, 200, 0.34), transparent 62%),
    radial-gradient(circle at 60% 70%, rgba(199, 169, 107, 0.18), transparent 55%);
  filter: blur(24px);
  opacity: 0.95;
  transition: opacity 0.45s, transform 0.55s var(--ease);
  pointer-events: none;
  z-index: 0;
}
.hero__globe-wrap.is-hot .hero__globe-glow {
  opacity: 1;
  transform: scale(1.06);
}
#hero-globe {
  position: relative;
  z-index: 2;
  width: 100%;
  height: auto;
  aspect-ratio: 1;
  border-radius: 50%;
  background: transparent;
  filter: none;
}
.hero__coords {
  position: absolute;
  right: 6%;
  top: 10%;
  z-index: 3;
  display: grid;
  gap: 0.2rem;
  font-size: 0.72rem;
  letter-spacing: 0.08em;
  color: var(--teal-700);
  font-variant-numeric: tabular-nums;
  font-weight: 600;
  white-space: nowrap;
  line-height: 1.35;
  text-align: right;
  transition: color 0.35s, transform 0.45s var(--ease);
  pointer-events: none;
}
.hero__coords-city {
  font-size: 0.68rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--navy-800);
  margin-bottom: 0.15rem;
  font-weight: 700;
}
.hero__globe-wrap.is-hot .hero__coords {
  color: var(--navy-800);
  transform: translateY(-4px);
}

/* Portrait overlay removed from hero globe */
.scroll-hint {
  position: absolute;
  bottom: 1.5rem;
  left: 50%;
  transform: translateX(-50%);
  color: var(--muted);
  font-size: 0.75rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.5rem;
}
.scroll-hint::after {
  content: "";
  width: 1px;
  height: 28px;
  background: linear-gradient(to bottom, var(--teal-500), transparent);
  animation: scrollPulse 1.8s ease-in-out infinite;
}

/* Header over light hero (before scroll) */
.site-header:not(.is-scrolled) .brand { color: var(--navy-900); }
.site-header:not(.is-scrolled) .brand__logo--light { opacity: 1; }
.site-header:not(.is-scrolled) .brand__logo--dark { opacity: 0; }
.site-header:not(.is-scrolled) .nav-list a { color: rgba(23, 33, 42, 0.72); }
.site-header:not(.is-scrolled) .nav-list a:hover,
.site-header:not(.is-scrolled) .nav-list a.is-active {
  color: var(--teal-700);
  border-bottom-color: var(--teal-500);
}
.site-header:not(.is-scrolled) .lang-switch { border-color: rgba(16, 47, 66, 0.18); }
.site-header:not(.is-scrolled) .lang-btn { color: var(--muted); }
.site-header:not(.is-scrolled) .lang-btn.is-active {
  background: rgba(24, 168, 160, 0.12);
  color: var(--teal-700);
}
.site-header:not(.is-scrolled) .icon-link { color: var(--navy-800); }
.site-header:not(.is-scrolled) .menu-toggle {
  border-color: rgba(16, 47, 66, 0.2);
}
.site-header:not(.is-scrolled) .menu-toggle span { background: var(--navy-900); }

@keyframes ringPulse {
  0%, 100% { transform: scale(1); opacity: 0.5; }
  50% { transform: scale(1.04); opacity: 1; }
}
@keyframes scrollPulse {
  0%, 100% { opacity: 0.2; transform: scaleY(0.7); }
  50% { opacity: 1; transform: scaleY(1); }
}

/* ---------- Sections ---------- */
.section {
  position: relative;
  padding: clamp(4rem, 8vw, 7rem) 0;
}
.section-eyebrow {
  font-size: 0.75rem;
  letter-spacing: 0.2em;
  color: var(--teal-500);
  margin-bottom: 0.75rem;
  font-weight: 600;
}
.section-title {
  font-size: clamp(1.85rem, 4vw, 3.1rem);
  color: var(--navy-900);
  margin-bottom: 1rem;
  max-width: 18ch;
}
.section-lead,
.section-body {
  color: var(--muted);
  max-width: 62ch;
  font-size: 1.02rem;
}
.section-header { margin-bottom: 2.5rem; }
.section-header--light .section-title,
.section-header--light .section-lead { color: var(--ivory); }
.section-header--light .section-eyebrow { color: var(--turquoise); }
.section-header--light .section-lead { color: rgba(246,243,235,0.68); }

/* ---------- Metrics ---------- */
.metrics {
  background: var(--navy-900);
  padding: 1.5rem 0;
  border-block: 1px solid rgba(66, 212, 200, 0.12);
}
.metrics__track {
  display: flex;
  gap: 1rem;
  overflow-x: auto;
  scroll-snap-type: x mandatory;
  padding-bottom: 0.35rem;
  -webkit-overflow-scrolling: touch;
}
.metric-card {
  flex: 0 0 auto;
  scroll-snap-align: start;
  min-width: 160px;
  padding: 1rem 1.15rem;
  background: rgba(255,255,255,0.03);
  border: 1px solid rgba(66, 212, 200, 0.12);
  color: var(--ivory);
}
.metric-card__icon {
  color: var(--gold);
  margin-bottom: 0.5rem;
}
.metric-card__icon svg { width: 20px; height: 20px; }
.metric-card__value {
  font-family: var(--font-display);
  font-size: 2rem;
  line-height: 1;
  color: var(--turquoise);
  margin-bottom: 0.25rem;
}
.metric-card__label {
  font-size: 0.82rem;
  color: rgba(246,243,235,0.8);
  margin-bottom: 0.55rem;
}
.metric-card__source {
  font-size: 0.65rem;
  color: rgba(246,243,235,0.72);
  letter-spacing: 0.02em;
}

/* ---------- About + Focus Map ---------- */
.about__grid {
  display: grid;
  gap: 2.5rem;
}
.focus-map {
  position: relative;
  min-height: 420px;
  background:
    radial-gradient(circle at 50% 45%, rgba(24,168,160,0.08), transparent 55%),
    linear-gradient(180deg, var(--white), #f0ebe1);
  border: 1px solid rgba(16, 47, 66, 0.08);
  padding: 1.25rem;
  overflow: hidden;
}
.focus-map::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(16,47,66,0.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(16,47,66,0.04) 1px, transparent 1px);
  background-size: 36px 36px;
  pointer-events: none;
}
.focus-map__title {
  position: relative;
  font-size: 0.8rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--teal-700);
  margin-bottom: 1rem;
  font-weight: 600;
}
.focus-map__svg {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
}
.focus-map__nodes { position: absolute; inset: 0; }
.focus-node {
  position: absolute;
  transform: translate(-50%, -50%);
  padding: 0.45rem 0.7rem;
  background: rgba(255,255,255,0.92);
  border: 1px solid rgba(16,47,66,0.12);
  font-size: 0.72rem;
  font-weight: 600;
  color: var(--navy-800);
  cursor: pointer;
  transition: transform 0.3s var(--ease), border-color 0.3s, color 0.3s, background 0.3s;
  white-space: nowrap;
  z-index: 2;
}
.focus-node:hover,
.focus-node.is-active {
  border-color: var(--teal-500);
  color: var(--teal-700);
  background: var(--white);
  transform: translate(-50%, -50%) scale(1.06);
  z-index: 3;
}
.focus-map__tooltip {
  position: absolute;
  z-index: 5;
  max-width: 220px;
  padding: 0.75rem 0.9rem;
  background: var(--navy-900);
  color: var(--ivory);
  font-size: 0.8rem;
  pointer-events: none;
  box-shadow: var(--shadow-soft);
}
.focus-link {
  stroke: rgba(24, 168, 160, 0.25);
  stroke-width: 0.35;
  fill: none;
}

/* ---------- Research Network ---------- */
.research {
  background:
    linear-gradient(180deg, transparent, rgba(231, 220, 196, 0.35)),
    var(--ivory);
}
.research-network {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(150px, 1fr));
  gap: 0.75rem;
  position: relative;
}
.research-node {
  position: relative;
  min-height: 110px;
  padding: 1rem;
  background: var(--white);
  border: 1px solid rgba(16, 47, 66, 0.08);
  cursor: pointer;
  transition: transform 0.35s var(--ease), border-color 0.3s, box-shadow 0.35s, background 0.3s;
  transform-style: preserve-3d;
}
.research-node:hover,
.research-node.is-active {
  border-color: var(--teal-500);
  box-shadow: 0 16px 40px rgba(6, 19, 31, 0.1);
  transform: translateY(-4px);
  z-index: 2;
}
.research-node.is-related {
  border-color: rgba(199, 169, 107, 0.7);
  background: rgba(199, 169, 107, 0.08);
}
.research-node__title {
  font-family: var(--font-display);
  font-size: 1.15rem;
  color: var(--navy-900);
  transition: font-size 0.3s;
}
.research-node.is-active .research-node__title { font-size: 1.28rem; color: var(--teal-700); }
.research-detail {
  margin-top: 1.5rem;
  min-height: 4.5rem;
  padding: 1.25rem 1.5rem;
  background: var(--navy-900);
  color: var(--ivory);
  opacity: 0;
  transform: translateY(12px);
  transition: opacity 0.35s, transform 0.35s;
}
.research-detail.is-visible {
  opacity: 1;
  transform: translateY(0);
}
.research-detail p { color: rgba(246,243,235,0.78); margin: 0.5rem 0 1rem; }
.research-detail .btn { margin-top: 0.25rem; }

/* ---------- Academic Map ---------- */
.academic-map {
  background: var(--navy-950);
  color: var(--ivory);
}
.map-stage {
  display: grid;
  gap: 1.25rem;
}
.map-canvas-wrap {
  position: relative;
  background:
    radial-gradient(ellipse at 48% 42%, rgba(24,168,160,0.12), transparent 55%),
    radial-gradient(ellipse at center, rgba(16,47,66,0.85), transparent 70%),
    var(--navy-900);
  border: 1px solid rgba(66, 212, 200, 0.15);
  min-height: 320px;
  overflow: hidden;
}
.world-map { width: 100%; height: auto; min-height: 280px; }

.neural-link {
  fill: none;
  stroke: url(#neural-grad);
  stroke-width: 1.15;
  stroke-linecap: round;
  stroke-dasharray: 8 14;
  stroke-dashoffset: 0;
  opacity: 0.55;
  filter: url(#neural-glow);
  animation: neuralFlow var(--neural-dur, 3.2s) linear var(--neural-delay, 0s) infinite;
  transition: opacity 0.35s, stroke-width 0.35s;
}
.neural-link.is-hub {
  stroke-width: 1.35;
  opacity: 0.72;
  stroke-dasharray: 5 10;
}
.neural-link.is-lit {
  opacity: 1;
  stroke-width: 2;
  stroke: #42D4C8;
  stroke-dasharray: 4 8;
}
.neural-link.is-dim {
  opacity: 0.12;
  filter: none;
}
.neural-pulse {
  fill: #42D4C8;
  opacity: 0.85;
  filter: url(#neural-glow);
  pointer-events: none;
}
.map-network { pointer-events: none; }

.map-dot {
  fill: var(--turquoise);
  cursor: pointer;
  transition: fill 0.25s;
}
.map-dot:hover,
.map-dot.is-active,
.map-marker.is-active .map-dot {
  fill: var(--gold);
}
.map-dot-pulse {
  fill: rgba(66, 212, 200, 0.12);
  stroke: rgba(66, 212, 200, 0.45);
  stroke-width: 1;
  pointer-events: none;
  transform-origin: center;
  transform-box: fill-box;
  animation: nodePulse 2.8s ease-out var(--ring-delay, 0s) infinite;
}
.map-dot-ring {
  fill: none;
  stroke: rgba(199, 169, 107, 0.35);
  stroke-width: 0.8;
  pointer-events: none;
  transform-origin: center;
  transform-box: fill-box;
  animation: nodeRing 3.6s ease-out var(--ring-delay, 0s) infinite;
}
.map-marker.is-active .map-dot-pulse,
.map-marker.is-active .map-dot-ring {
  stroke: rgba(199, 169, 107, 0.75);
}

@keyframes neuralFlow {
  to { stroke-dashoffset: -120; }
}
@keyframes nodePulse {
  0% { opacity: 0.7; }
  70% { opacity: 0; }
  100% { opacity: 0; }
}
@keyframes nodeRing {
  0% { opacity: 0.5; transform: scale(0.75); }
  70% { opacity: 0; transform: scale(1.45); }
  100% { opacity: 0; transform: scale(1.45); }
}

.world-map.is-static .neural-link {
  animation: none;
  stroke-dasharray: none;
  opacity: 0.4;
}
.world-map.is-static .neural-pulse,
.world-map.is-static .map-dot-pulse,
.world-map.is-static .map-dot-ring {
  animation: none !important;
  opacity: 0.35;
}

.map-route {
  fill: none;
  stroke: rgba(199, 169, 107, 0.35);
  stroke-width: 1;
  stroke-dasharray: 4 4;
}
.map-panel {
  background: rgba(16, 47, 66, 0.65);
  border: 1px solid rgba(66, 212, 200, 0.15);
  padding: 1.25rem;
  min-height: 180px;
}
.map-panel__hint {
  color: rgba(246,243,235,0.45);
  font-size: 0.85rem;
}
.map-panel h3 {
  font-size: 1.5rem;
  margin-bottom: 0.5rem;
  color: var(--gold);
}
.map-panel p { color: rgba(246,243,235,0.75); font-size: 0.92rem; }
.map-panel__meta {
  margin-top: 1rem;
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
}
.map-chip {
  font-size: 0.72rem;
  padding: 0.3rem 0.55rem;
  border: 1px solid rgba(66,212,200,0.25);
  color: var(--turquoise);
}

/* ---------- Publications ---------- */
.pubs-toolbar {
  display: grid;
  gap: 1rem;
  margin-bottom: 1.75rem;
}
.filters-toggle {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  padding: 0.6rem 1rem;
  background: var(--white);
  border: 1px solid rgba(16,47,66,0.12);
  cursor: pointer;
  font-weight: 600;
}
.pubs-filters {
  display: none;
  flex-wrap: wrap;
  gap: 0.45rem;
}
.pubs-filters.is-open { display: flex; }
.filter-btn {
  min-height: 40px;
  padding: 0.4rem 0.85rem;
  border: 1px solid rgba(16,47,66,0.12);
  background: var(--white);
  color: var(--muted);
  cursor: pointer;
  font-size: 0.82rem;
  font-weight: 500;
  transition: background 0.25s, color 0.25s, border-color 0.25s;
}
.filter-btn.is-active,
.filter-btn:hover {
  background: var(--navy-900);
  color: var(--ivory);
  border-color: var(--navy-900);
}
.pubs-search input {
  width: 100%;
  min-height: 48px;
  padding: 0.75rem 1rem;
  border: 1px solid rgba(16,47,66,0.12);
  background: var(--white);
}
.pubs-grid {
  display: grid;
  gap: 1rem;
}
.pub-card {
  background: var(--white);
  border: 1px solid rgba(16,47,66,0.08);
  padding: 1.25rem 1.35rem;
  transition: transform 0.35s var(--ease), box-shadow 0.35s, border-color 0.3s;
  cursor: pointer;
}
.pub-card:hover {
  transform: translateY(-3px);
  box-shadow: 0 18px 40px rgba(6,19,31,0.08);
  border-color: rgba(24,168,160,0.35);
}
.pub-card__meta {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-bottom: 0.65rem;
  font-size: 0.75rem;
}
.pub-year {
  color: var(--teal-700);
  font-weight: 700;
}
.pub-type {
  color: var(--gold);
  font-weight: 600;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}
.pub-text-type {
  color: var(--teal-700);
  font-weight: 600;
  font-size: 0.72rem;
  letter-spacing: 0.04em;
}
.pub-venue {
  font-size: 0.85rem;
  color: var(--muted);
  margin-bottom: 0.35rem;
}
.pub-card h3 {
  font-size: clamp(1.05rem, 2vw, 1.25rem);
  color: var(--navy-900);
  margin-bottom: 0.5rem;
  font-family: var(--font-body);
  font-weight: 600;
  line-height: 1.4;
}
.pub-authors,
.pub-journal {
  font-size: 0.88rem;
  color: var(--muted);
  margin-bottom: 0.35rem;
}
.pub-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.35rem;
  margin: 0.85rem 0 1rem;
}
.tag {
  font-size: 0.7rem;
  padding: 0.25rem 0.5rem;
  background: rgba(24,168,160,0.08);
  color: var(--teal-700);
}
.pub-card__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}

/* ---------- Projects (chronological pages) ---------- */
.projects { background: #f0ebe2; }
.projects-chrono {
  display: grid;
  gap: 1.5rem;
  align-items: start;
}
.projects-rail {
  display: flex;
  gap: 0.55rem;
  overflow-x: auto;
  scroll-snap-type: x mandatory;
  padding: 0.25rem 0.15rem 0.75rem;
  -webkit-overflow-scrolling: touch;
}
.projects-rail__item {
  flex: 0 0 auto;
  scroll-snap-align: start;
  display: grid;
  gap: 0.2rem;
  min-width: min(220px, 72vw);
  max-width: 260px;
  text-align: left;
  padding: 0.85rem 1rem;
  border: 1px solid rgba(16, 47, 66, 0.1);
  background: rgba(255, 255, 255, 0.72);
  color: var(--navy-800);
  cursor: pointer;
  border-left: 3px solid rgba(24, 168, 160, 0.35);
  transition: border-color 0.3s, background 0.3s, transform 0.3s, box-shadow 0.3s;
  min-height: 74px;
}
.projects-rail__item:hover {
  border-left-color: var(--teal-500);
  transform: translateY(-2px);
}
.projects-rail__item.is-active {
  background: var(--navy-900);
  color: var(--ivory);
  border-color: transparent;
  border-left-color: var(--gold);
  box-shadow: 0 14px 34px rgba(6, 19, 31, 0.14);
}
.projects-rail__num {
  font-size: 0.68rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  opacity: 0.65;
  font-weight: 700;
}
.projects-rail__item.is-active .projects-rail__num { color: var(--turquoise); opacity: 1; }
.projects-rail__period {
  font-size: 0.78rem;
  font-weight: 700;
  color: var(--teal-700);
}
.projects-rail__item.is-active .projects-rail__period { color: var(--gold); }
.projects-rail__title {
  font-size: 0.84rem;
  line-height: 1.35;
  font-weight: 600;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.projects-stage {
  position: relative;
  min-width: 0;
}
.projects-toolbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  margin-bottom: 0.85rem;
}
.projects-counter {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--teal-700);
  letter-spacing: 0.04em;
}
.projects-nav-btns { display: flex; gap: 0.45rem; }
.projects-nav {
  width: 44px;
  height: 44px;
  display: grid;
  place-items: center;
  border: 1px solid rgba(16, 47, 66, 0.14);
  background: var(--white);
  color: var(--navy-900);
  cursor: pointer;
  border-radius: var(--radius);
  transition: background 0.25s, color 0.25s, border-color 0.25s;
}
.projects-nav:hover:not(:disabled) {
  background: var(--navy-900);
  color: var(--ivory);
  border-color: var(--navy-900);
}
.projects-nav:disabled {
  opacity: 0.35;
  cursor: not-allowed;
}
.projects-nav svg { width: 18px; height: 18px; }

.projects-swiper {
  overflow: hidden;
  border: 1px solid rgba(16, 47, 66, 0.08);
  background: var(--white);
  box-shadow: 0 18px 48px rgba(6, 19, 31, 0.06);
}
.projects-swiper .swiper-pagination {
  position: relative;
  bottom: auto;
  margin-top: 0.85rem;
  padding-bottom: 0.85rem;
}
.projects-swiper .swiper-pagination-bullet {
  background: rgba(16, 47, 66, 0.25);
  opacity: 1;
  width: 24px;
  height: 24px;
  padding: 8px;
  box-sizing: border-box;
  background-clip: content-box;
  margin: 0 2px;
}
.projects-swiper .swiper-pagination-bullet-active {
  background: var(--teal-500) !important;
}

.project-page {
  min-height: 420px;
  padding: clamp(1.35rem, 3vw, 2.25rem);
  display: grid;
  gap: 1.25rem;
  background:
    linear-gradient(145deg, rgba(246, 243, 235, 0.95), rgba(255, 255, 255, 0.98)),
    var(--white);
}
.project-page.is-featured {
  background:
    linear-gradient(145deg, rgba(16, 47, 66, 0.96), rgba(11, 96, 104, 0.9));
  color: var(--ivory);
}
.project-page__top {
  display: flex;
  flex-wrap: wrap;
  gap: 0.65rem;
  align-items: center;
}
.project-page__badge {
  font-size: 0.72rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  font-weight: 700;
  color: var(--teal-700);
  padding: 0.3rem 0.55rem;
  border: 1px solid rgba(24, 168, 160, 0.3);
  background: rgba(24, 168, 160, 0.08);
}
.project-page.is-featured .project-page__badge {
  color: var(--turquoise);
  border-color: rgba(66, 212, 200, 0.35);
  background: rgba(66, 212, 200, 0.1);
}
.project-page__featured {
  font-size: 0.72rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  font-weight: 700;
  color: var(--gold);
}
.project-page__period {
  font-size: 0.95rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  color: var(--teal-700);
}
.project-page.is-featured .project-page__period { color: var(--gold); }
.project-page h3 {
  font-size: clamp(1.45rem, 3vw, 2.15rem);
  line-height: 1.25;
  max-width: 22ch;
  color: var(--navy-900);
  font-family: var(--font-display);
}
.project-page.is-featured h3 { color: var(--ivory); }
.project-page__focus {
  font-size: 1.02rem;
  line-height: 1.65;
  color: var(--muted);
  max-width: 58ch;
}
.project-page.is-featured .project-page__focus {
  color: rgba(246, 243, 235, 0.78);
}
.project-page__grid {
  display: grid;
  gap: 0.85rem;
  grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
}
.project-page__meta dt,
.project-page__meta .project-page__label {
  font-size: 0.68rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  font-weight: 700;
  color: var(--teal-700);
  margin-bottom: 0.25rem;
}
.project-page.is-featured .project-page__meta dt,
.project-page__meta .project-page__label { color: var(--turquoise); }
.project-page__meta dd {
  margin: 0;
  font-size: 0.92rem;
  font-weight: 600;
  color: var(--navy-800);
}
.project-page.is-featured .project-page__meta dd { color: rgba(246, 243, 235, 0.9); }
.project-page__themes {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
}
.project-page__themes span {
  font-size: 0.75rem;
  padding: 0.3rem 0.55rem;
  background: rgba(24, 168, 160, 0.1);
  color: var(--teal-700);
  font-weight: 600;
}
.project-page.is-featured .project-page__themes span {
  background: rgba(66, 212, 200, 0.12);
  color: var(--turquoise);
}
.project-page__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.65rem;
  margin-top: 0.35rem;
}
.project-page .btn--ghost {
  border-color: rgba(16, 47, 66, 0.2);
  color: var(--navy-800);
}
.project-page.is-featured .btn--ghost {
  border-color: rgba(255, 255, 255, 0.35);
  color: var(--ivory);
}
.project-page.is-featured .btn--teal {
  background: var(--gold);
  color: var(--navy-950);
}

@media (min-width: 960px) {
  .projects-chrono {
    grid-template-columns: 280px 1fr;
    gap: 1.75rem;
  }
  .projects-rail {
    display: grid;
    gap: 0.45rem;
    overflow: visible;
    max-height: 560px;
    overflow-y: auto;
    padding: 0;
    scroll-snap-type: none;
  }
  .projects-rail__item {
    min-width: 0;
    max-width: none;
    width: 100%;
  }
}

/* ---------- Timeline ---------- */
.timeline {
  position: relative;
  padding-left: 1.5rem;
}
.timeline__line {
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 2px;
  background: rgba(16,47,66,0.12);
}
.timeline__progress {
  display: block;
  width: 100%;
  height: 0%;
  background: linear-gradient(to bottom, var(--teal-500), var(--gold));
  transform-origin: top;
}
.timeline__group {
  margin-bottom: 2.5rem;
  opacity: 0;
  transform: translateY(24px);
}
.timeline__group.is-inview {
  opacity: 1;
  transform: none;
  transition: opacity 0.6s var(--ease), transform 0.6s var(--ease);
}
.timeline__group h3 {
  font-size: 1.35rem;
  margin-bottom: 1rem;
  color: var(--navy-900);
}
.timeline-item {
  position: relative;
  padding: 1rem 0 1rem 1.25rem;
  border-bottom: 1px solid rgba(16,47,66,0.08);
}
.timeline-item::before {
  content: "";
  position: absolute;
  left: -1.6rem;
  top: 1.35rem;
  width: 8px; height: 8px;
  border-radius: 50%;
  background: var(--gold);
  box-shadow: 0 0 0 3px rgba(199,169,107,0.25);
}
.timeline-item__period {
  font-size: 0.78rem;
  color: var(--teal-700);
  font-weight: 700;
  letter-spacing: 0.04em;
}
.timeline-item__coord {
  font-size: 0.7rem;
  color: var(--muted);
  margin-left: 0.5rem;
}
.timeline-item__title {
  font-size: 1.05rem;
  margin-top: 0.25rem;
  font-family: var(--font-body);
  font-weight: 600;
}
.journey__institution {
  margin-top: 0.75rem;
  font-size: 0.9rem;
  color: var(--teal-700);
  font-weight: 600;
}

/* About-embedded journey */
.about-journey {
  margin-top: 3.5rem;
  padding-top: 2.5rem;
  border-top: 1px solid rgba(16, 47, 66, 0.1);
}
.about-journey__header {
  margin-bottom: 1.75rem;
}
.section-title--sm {
  font-size: clamp(1.6rem, 3vw, 2.35rem);
}
.about-journey__cta {
  margin-top: 1.5rem;
}

/* Inner pages */
.page-inner .site-header {
  background: rgba(6, 19, 31, 0.78);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-bottom-color: rgba(66, 212, 200, 0.18);
}
.page-inner .brand__logo--light { opacity: 0; }
.page-inner .brand__logo--dark { opacity: 1; }
.page-hero {
  padding: calc(var(--header-h) + 3.5rem) 0 2.5rem;
  background:
    radial-gradient(ellipse at 15% 0%, rgba(66, 212, 200, 0.12), transparent 55%),
    linear-gradient(180deg, #eef3f1 0%, var(--ivory) 100%);
}
.page-hero .section-title {
  max-width: 18ch;
}
.page-hero .section-lead {
  max-width: 62ch;
}

/* News */
.news-grid {
  display: grid;
  gap: 1.25rem;
}
.news-card {
  padding: 1.35rem 0 1.5rem;
  border-bottom: 1px solid rgba(16, 47, 66, 0.1);
}
.news-card:last-child { border-bottom: 0; }
.news-card__meta {
  display: flex;
  flex-wrap: wrap;
  gap: 0.65rem 1rem;
  align-items: center;
  margin-bottom: 0.55rem;
  font-size: 0.78rem;
  color: var(--muted);
}
.news-card__cat {
  color: var(--teal-700);
  font-weight: 600;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}
.news-card h3 {
  font-family: var(--font-display);
  font-size: clamp(1.25rem, 2.2vw, 1.65rem);
  color: var(--navy-900);
  margin: 0 0 0.5rem;
  line-height: 1.25;
}
.news-card p {
  color: var(--muted);
  margin: 0 0 0.85rem;
  max-width: 70ch;
}

@media (min-width: 768px) {
  .news-grid {
    grid-template-columns: 1fr 1fr;
    gap: 1.5rem 2rem;
  }
}

/* ---------- Education ---------- */
.edu-layers {
  display: grid;
  gap: 1rem;
}
.edu-layer {
  display: grid;
  gap: 0.35rem;
  padding: 1.35rem 1.5rem;
  background: var(--white);
  border-left: 3px solid var(--teal-500);
  box-shadow: 0 8px 28px rgba(6,19,31,0.04);
}
.edu-layer:nth-child(2) { border-left-color: var(--gold); margin-left: 0.75rem; }
.edu-layer:nth-child(3) { border-left-color: var(--turquoise); margin-left: 1.5rem; }
.edu-layer:nth-child(4) { border-left-color: var(--accent-red); margin-left: 2.25rem; }
.edu-layer__period {
  font-size: 0.78rem;
  color: var(--teal-700);
  font-weight: 700;
}
.edu-layer__degree {
  font-family: var(--font-display);
  font-size: 1.35rem;
  color: var(--navy-900);
}
.edu-layer__school,
.edu-layer__field { color: var(--muted); font-size: 0.92rem; }
.edu-layer__thesis {
  margin-top: 0.5rem;
  font-size: 0.88rem;
  color: var(--navy-800);
  padding-top: 0.5rem;
  border-top: 1px dashed rgba(16,47,66,0.12);
}
.certificates { margin-top: 2.5rem; }
.certificates h3 {
  font-size: 1.35rem;
  margin-bottom: 1rem;
  color: var(--navy-900);
}
.certificates ul {
  display: grid;
  gap: 0.5rem;
}
.certificates li {
  padding: 0.75rem 1rem;
  background: rgba(24,168,160,0.06);
  border-left: 2px solid var(--teal-500);
  font-size: 0.92rem;
}

/* ---------- Courses ---------- */
.course-filters {
  display: flex;
  flex-wrap: wrap;
  gap: 0.45rem;
  margin-bottom: 1.5rem;
}
.courses-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
  gap: 1rem;
}
.course-card {
  position: relative;
  overflow: hidden;
  min-height: 140px;
  padding: 1.25rem;
  background: var(--white);
  border: 1px solid rgba(16,47,66,0.08);
  transition: transform 0.35s var(--ease), border-color 0.3s;
}
.course-card::before {
  content: "";
  position: absolute;
  inset: 0;
  opacity: 0;
  transition: opacity 0.4s;
  background:
    radial-gradient(circle at 80% 20%, rgba(24,168,160,0.18), transparent 45%),
    linear-gradient(135deg, transparent 40%, rgba(199,169,107,0.12));
  pointer-events: none;
}
.course-card:hover {
  transform: translateY(-3px);
  border-color: var(--teal-500);
}
.course-card:hover::before { opacity: 1; }
.course-card__level {
  position: relative;
  font-size: 0.7rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--gold);
  font-weight: 700;
  margin-bottom: 0.5rem;
}
.course-card h3 {
  position: relative;
  font-size: 1.15rem;
  font-family: var(--font-body);
  font-weight: 600;
  color: var(--navy-900);
}

/* ---------- Theses ---------- */
.theses__count {
  font-family: var(--font-display);
  font-size: clamp(2rem, 4vw, 3rem);
  color: var(--teal-700);
  margin-bottom: 0.5rem;
}
.theses-grid {
  display: grid;
  gap: 0.85rem;
}
.thesis-card {
  display: grid;
  gap: 0.5rem;
  padding: 1.15rem 1.25rem;
  background: var(--white);
  border: 1px solid rgba(16,47,66,0.08);
  transition: border-color 0.3s, transform 0.3s;
}
.thesis-card:hover {
  border-color: rgba(199,169,107,0.55);
  transform: translateX(4px);
}
.thesis-card h3 {
  font-size: 1.02rem;
  font-family: var(--font-body);
  font-weight: 600;
  color: var(--navy-900);
  line-height: 1.4;
}
.thesis-card__meta {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  font-size: 0.78rem;
  color: var(--muted);
}

/* ---------- Turkic World ---------- */
.turkic {
  position: relative;
  min-height: 90vh;
  background: var(--navy-950);
  color: var(--ivory);
  overflow: hidden;
}
.turkic__bg {
  position: absolute;
  inset: 0;
  background:
    radial-gradient(circle at 55% 45%, rgba(181,58,58,0.12), transparent 35%),
    radial-gradient(circle at 40% 50%, rgba(66,212,200,0.1), transparent 40%),
    linear-gradient(rgba(66,212,200,0.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(66,212,200,0.04) 1px, transparent 1px);
  background-size: auto, auto, 56px 56px, 56px 56px;
  animation: mapDrift 28s linear infinite;
}
.turkic__inner { position: relative; z-index: 1; }
.turkic-cards {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(150px, 1fr));
  gap: 0.75rem;
  margin-bottom: 2.5rem;
}
.turkic-card {
  padding: 1.15rem;
  border: 1px solid rgba(66,212,200,0.15);
  background: rgba(16,47,66,0.45);
  transition: transform 0.35s, border-color 0.35s, background 0.35s;
  min-height: 88px;
  display: flex;
  align-items: flex-end;
}
.turkic-card.is-lit {
  border-color: rgba(199,169,107,0.65);
  background: rgba(181,58,58,0.12);
  transform: translateY(-4px);
}
.turkic-card h3 {
  font-size: 1.05rem;
  font-family: var(--font-body);
  font-weight: 600;
}
.turkic-featured h3 {
  font-size: 1.25rem;
  margin-bottom: 1rem;
  color: var(--gold);
}
.turkic-featured__grid {
  display: grid;
  gap: 1rem;
}
.turkic-featured__item {
  padding: 1.25rem;
  border: 1px solid rgba(199,169,107,0.35);
  background: rgba(199,169,107,0.06);
}
.turkic-featured__item p {
  font-size: 0.85rem;
  color: rgba(246,243,235,0.65);
  margin-top: 0.35rem;
}

/* ---------- SDG ---------- */
.sdg {
  background:
    linear-gradient(120deg, rgba(24,168,160,0.08), rgba(199,169,107,0.08)),
    var(--ivory);
  text-align: center;
}
.sdg__inner {
  display: grid;
  justify-items: center;
  gap: 1.25rem;
}
.sdg .section-title { max-width: none; }
.sdg .section-body { margin-inline: auto; }

/* ---------- Contact ---------- */
.contact__grid {
  display: grid;
  gap: 2.5rem;
}
.contact__details {
  display: grid;
  gap: 1.25rem;
  margin: 1.75rem 0;
}
.contact__details dt {
  font-size: 0.72rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--teal-700);
  font-weight: 700;
  margin-bottom: 0.25rem;
}
.contact__details dd { margin: 0; color: var(--navy-800); }
.contact__details a:hover { color: var(--teal-500); }
.contact__links {
  display: flex;
  flex-wrap: wrap;
  gap: 0.65rem;
}
.contact__links a {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--navy-800);
  border-bottom: 1px solid rgba(24,168,160,0.35);
  padding-bottom: 0.15rem;
}
.contact__links a:hover { color: var(--teal-500); }

.contact-form {
  position: relative;
  background: var(--white);
  border: 1px solid rgba(16,47,66,0.08);
  padding: 1.75rem;
  display: grid;
  gap: 1rem;
  box-shadow: 0 20px 50px rgba(6,19,31,0.05);
}
.form-demo-badge {
  position: absolute;
  top: 0.85rem;
  right: 0.85rem;
  font-size: 0.68rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--accent-red);
  font-weight: 700;
}
.form-row { display: grid; gap: 0.4rem; }
.form-row label { font-size: 0.88rem; font-weight: 600; color: var(--navy-800); }
.form-row input,
.form-row textarea {
  width: 100%;
  padding: 0.75rem 0.9rem;
  border: 1px solid rgba(16,47,66,0.14);
  background: var(--ivory);
  min-height: 44px;
  transition: border-color 0.25s, box-shadow 0.25s;
}
.form-row input:focus,
.form-row textarea:focus {
  outline: none;
  border-color: var(--teal-500);
  box-shadow: 0 0 0 3px rgba(24,168,160,0.15);
}
.form-row--check {
  display: flex;
  align-items: flex-start;
  gap: 0.65rem;
}
.form-row--check input {
  width: 18px;
  height: 18px;
  margin-top: 0.2rem;
  flex-shrink: 0;
}
.form-row--check label { font-weight: 400; font-size: 0.85rem; color: var(--muted); }
.hp-field {
  position: absolute;
  left: -9999px;
  opacity: 0;
  height: 0;
  overflow: hidden;
}
.form-status {
  font-size: 0.9rem;
  min-height: 1.4em;
}
.form-status.is-success { color: var(--teal-700); }
.form-status.is-error { color: var(--accent-red); }
.form-row.is-invalid input,
.form-row.is-invalid textarea {
  border-color: var(--accent-red);
}

/* ---------- Footer ---------- */
.site-footer {
  background: var(--navy-950);
  color: rgba(246,243,235,0.78);
  padding: 3.5rem 0 1.5rem;
  border-top: 1px solid rgba(66,212,200,0.12);
}
.footer__grid {
  display: grid;
  gap: 2rem;
  margin-bottom: 2.5rem;
}
.footer__brand .brand__mono {
  margin-bottom: 0.75rem;
}
.footer__brand p:first-of-type {
  color: var(--ivory);
  font-weight: 600;
  margin-bottom: 0.25rem;
}
.footer__tag { font-size: 0.82rem; color: rgba(246,243,235,0.5); }
.footer__nav,
.footer__links {
  display: grid;
  gap: 0.55rem;
}
.footer__nav a:hover,
.footer__links a:hover { color: var(--turquoise); }
.footer__bottom {
  display: grid;
  gap: 0.5rem;
  padding-top: 1.25rem;
  border-top: 1px solid rgba(255,255,255,0.08);
  font-size: 0.8rem;
}
.footer__credit {
  color: rgba(199,169,107,0.7);
  font-size: 0.75rem;
  letter-spacing: 0.02em;
}

/* ---------- Modal ---------- */
.modal {
  position: fixed;
  inset: 0;
  z-index: 2000;
  display: grid;
  place-items: center;
  padding: 1rem;
}
.modal[hidden] { display: none; }
.modal__backdrop {
  position: absolute;
  inset: 0;
  background: rgba(6,19,31,0.72);
  backdrop-filter: blur(6px);
}
.modal__dialog {
  position: relative;
  width: min(680px, 100%);
  max-height: min(86vh, 800px);
  overflow: auto;
  background: var(--ivory);
  border: 1px solid rgba(16,47,66,0.1);
  padding: 2rem 1.5rem 1.5rem;
  box-shadow: var(--shadow-soft);
}
.modal__close {
  position: absolute;
  top: 0.75rem;
  right: 0.75rem;
  width: 44px; height: 44px;
  display: grid;
  place-items: center;
  background: transparent;
  border: 1px solid rgba(16,47,66,0.12);
  cursor: pointer;
  border-radius: var(--radius);
}
.modal__close svg { width: 18px; height: 18px; }
.modal__content h2 {
  font-size: 1.45rem;
  margin-bottom: 0.75rem;
  color: var(--navy-900);
  font-family: var(--font-body);
  font-weight: 600;
  line-height: 1.35;
  padding-right: 2rem;
}
.modal__content .pub-fallback {
  margin: 1rem 0;
  padding: 1rem;
  background: rgba(24,168,160,0.08);
  color: var(--navy-800);
  font-size: 0.92rem;
}

/* ---------- Reveal helpers ---------- */
.reveal-up {
  opacity: 0;
  transform: translateY(28px);
}
.is-ready .reveal-up {
  opacity: 1;
  transform: none;
  transition: opacity 0.8s var(--ease), transform 0.8s var(--ease);
}

/* ---------- Responsive ---------- */
@media (min-width: 768px) {
  .hero__grid {
    grid-template-columns: 1.05fr 0.95fr;
    gap: 2rem;
  }
  .hero__globe-wrap {
    width: min(100%, 540px);
  }
  .about__grid { grid-template-columns: 1fr 1fr; align-items: center; }
  .map-stage { grid-template-columns: 1.6fr 0.9fr; }
  .pubs-grid { grid-template-columns: 1fr 1fr; }
  .turkic-featured__grid { grid-template-columns: 1fr 1fr; }
  .contact__grid { grid-template-columns: 1fr 1.1fr; }
  .footer__grid { grid-template-columns: 1.2fr 1fr 1fr; }
  .filters-toggle { display: none; }
  .pubs-filters { display: flex; }
  .theses-grid { grid-template-columns: 1fr 1fr; }
  .edu-layer:nth-child(n) { margin-left: 0; }
  .edu-layer:nth-child(2) { margin-left: 1.5rem; }
  .edu-layer:nth-child(3) { margin-left: 3rem; }
  .edu-layer:nth-child(4) { margin-left: 4.5rem; }
}

@media (min-width: 1024px) {
  .brand {
    width: clamp(12rem, 16vw, 15.5rem);
    height: 2.9rem;
  }
  .hero__title { font-size: clamp(3rem, 6.2vw, 6.5rem); }
  .metrics__track {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    overflow: visible;
  }
  .metric-card { min-width: 0; }
  .pubs-grid { grid-template-columns: 1fr 1fr; }
  .research-network { grid-template-columns: repeat(4, 1fr); }
}

/* Full desktop nav only when there is room for 9 links + actions */
@media (min-width: 1280px) {
  .nav-desktop { display: flex; }
  .menu-toggle { display: none; }
  .brand {
    width: clamp(11.5rem, 14vw, 14.5rem);
    height: 2.85rem;
  }
  .nav-list a {
    font-size: 0.7rem;
    padding: 0.4rem 0.34rem;
  }
  .header__actions { gap: 0.4rem; }
  .lang-btn {
    padding: 0.3rem 0.45rem;
    min-width: 34px;
    min-height: 34px;
  }
}

@media (min-width: 1440px) {
  .brand {
    width: clamp(13rem, 15vw, 16.5rem);
    height: 3rem;
  }
  .nav-list a {
    font-size: 0.74rem;
    padding: 0.4rem 0.4rem;
  }
}

@media (min-width: 1540px) {
  .header__actions { gap: 0.55rem; }
  .brand {
    width: clamp(12.5rem, 13.5vw, 15.25rem);
    height: 2.95rem;
  }
  .nav-list a {
    font-size: 0.72rem;
    padding: 0.38rem 0.36rem;
  }
}

@media (min-width: 1680px) {
  .header__actions .btn--gold { display: inline-flex; }
  .header__actions { gap: 0.5rem; }
  .brand {
    width: 13.75rem;
    height: 2.9rem;
  }
  .nav-list a {
    font-size: 0.7rem;
    padding: 0.36rem 0.3rem;
  }
  .lang-btn {
    min-width: 32px;
    min-height: 32px;
    padding: 0.28rem 0.4rem;
  }
}

@media (min-width: 1920px) {
  :root { --container: min(1480px, calc(100% - 5rem)); }
  .header__actions { gap: 0.65rem; }
  .brand {
    width: 15.5rem;
    height: 3.1rem;
  }
  .nav-list a {
    font-size: 0.76rem;
    padding: 0.42rem 0.42rem;
  }
}

@media (min-width: 1600px) {
  :root { --container: min(1360px, calc(100% - 4.5rem)); }
}

@media (min-width: 1366px) {
  :root { --container: min(1240px, calc(100% - 4rem)); }
  .metrics__track { grid-template-columns: repeat(8, 1fr); gap: 0.75rem; }
  .metric-card { padding: 0.9rem; }
  .metric-card__value { font-size: 1.7rem; }
}

@media (max-width: 380px) {
  .brand {
    width: clamp(8.75rem, 60vw, 11rem);
    height: 2.4rem;
  }
  .header__inner { gap: 0.45rem; }
  .lang-btn { padding: 0.3rem 0.4rem; min-width: 32px; }
}

@media (max-width: 389px) {
  .hero__title { font-size: clamp(2.2rem, 11vw, 2.8rem); }
  .brand__name { font-size: 0.8rem; }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
  .preloader__globe-svg { animation: none; }
  .reveal-mask > span { transform: none; }
  .reveal-up { opacity: 1; transform: none; }
  .neural-link,
  .map-dot-pulse,
  .map-dot-ring {
    animation: none !important;
  }
  .neural-pulse { display: none; }
}

.low-perf .turkic__bg { animation: none; }
.low-perf .research-node { transform: none !important; }