/* ==========================================================================
   Issam Alzouby — academic site
   ========================================================================== */

/* ---------- tokens ---------- */
:root {
  --bg:        #0a0b0e;
  --bg-soft:   #0f1116;
  --panel:     #101319;
  --panel-2:   #14171f;
  --line:      rgba(255, 255, 255, 0.09);
  --line-2:    rgba(255, 255, 255, 0.16);
  --text:      #e9eaee;
  --text-dim:  #a2a8b6;
  --muted:     #7d8494;
  --accent:    #6b86ff;
  --accent-2:  #9ab0ff;
  --accent-dim: rgba(107, 134, 255, 0.14);
  --grid:      rgba(255, 255, 255, 0.028);
  --glass-edge:        rgba(255, 255, 255, 0.12);
  --glass-edge-strong: rgba(255, 255, 255, 0.18);
  --glass-hi:          rgba(255, 255, 255, 0.10);

  --sans: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Helvetica, Arial, sans-serif;
  --mono: "JetBrains Mono", ui-monospace, SFMono-Regular, Menlo, monospace;

  --maxw: 1160px;
  --radius: 14px;
  --ease: cubic-bezier(0.22, 1, 0.36, 1);
}

html[data-theme="light"] {
  --bg:        #fbfbfc;
  --bg-soft:   #f4f5f8;
  --panel:     #ffffff;
  --panel-2:   #f7f8fb;
  --line:      rgba(10, 15, 35, 0.10);
  --line-2:    rgba(10, 15, 35, 0.20);
  --text:      #14171f;
  --text-dim:  #454b5a;
  --muted:     #6b7183;
  --accent:    #3f5bdb;
  --accent-2:  #2a44bd;
  --accent-dim: rgba(63, 91, 219, 0.10);
  --grid:      rgba(10, 15, 35, 0.10);
  --glass-edge:        rgba(10, 15, 35, 0.10);
  --glass-edge-strong: rgba(10, 15, 35, 0.16);
  --glass-hi:          rgba(255, 255, 255, 0.85);
}

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

html {
  scroll-behavior: smooth;
  scroll-padding-top: 100px;
  -webkit-text-size-adjust: 100%;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: var(--sans);
  font-size: 16px;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
  transition: background 0.4s var(--ease), color 0.4s var(--ease);
}

/* faint engineering grid behind everything */
body::before {
  content: "";
  position: fixed;
  inset: 0;
  z-index: -2;
  pointer-events: none;
  background-image:
    linear-gradient(var(--grid) 1px, transparent 1px),
    linear-gradient(90deg, var(--grid) 1px, transparent 1px);
  background-size: 64px 64px;
  mask-image: radial-gradient(ellipse 100% 70% at 50% 0%, #000 30%, transparent 100%);
  -webkit-mask-image: radial-gradient(ellipse 100% 70% at 50% 0%, #000 30%, transparent 100%);
}

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

a {
  color: var(--accent);
  text-decoration: none;
  transition: color 0.2s var(--ease);
}
a:hover { color: var(--accent-2); }

h1, h2, h3, h4 {
  margin: 0;
  font-weight: 600;
  letter-spacing: -0.022em;
  line-height: 1.2;
}
p { margin: 0 0 1em; }
p:last-child { margin-bottom: 0; }

::selection { background: var(--accent); color: #fff; }

:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 3px;
  border-radius: 4px;
}

/* ---------- layout ---------- */
.wrap {
  width: 100%;
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 0 28px;
}

section { position: relative; }

.section {
  padding: 96px 0;
  border-top: 1px solid var(--line);
}
.section--flush { border-top: 0; }

.skip-link {
  position: absolute;
  left: -9999px;
  top: 12px;
  z-index: 200;
  padding: 10px 18px;
  background: var(--accent);
  color: #fff;
  border-radius: 8px;
}
.skip-link:focus { left: 24px; color: #fff; }

/* ---------- typography helpers ---------- */
.eyebrow {
  font-family: var(--mono);
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--muted);
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 22px;
}
.eyebrow::before {
  content: "";
  width: 22px;
  height: 1px;
  background: var(--accent);
  flex: none;
}

.section-title {
  font-size: clamp(1.6rem, 3.2vw, 2.15rem);
  margin-bottom: 14px;
}

.section-intro {
  color: var(--text-dim);
  max-width: 62ch;
  font-size: 1.02rem;
}

.lede {
  font-size: 1.08rem;
  color: var(--text-dim);
  line-height: 1.75;
}

.mono { font-family: var(--mono); }

/* ---------- header / nav ---------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  padding: 12px 0;
  background: transparent;
}

/* floating glass pill: translucent fill, blurred backdrop, bright top edge */
.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  height: 56px;
  padding: 0 10px 0 16px;
  border-radius: 999px;
  background: var(--panel);
  background: color-mix(in srgb, var(--panel) 62%, transparent);
  backdrop-filter: saturate(180%) blur(20px);
  -webkit-backdrop-filter: saturate(180%) blur(20px);
  border: 1px solid var(--glass-edge);
  box-shadow:
    inset 0 1px 0 0 var(--glass-hi),
    0 8px 24px -12px rgba(0, 0, 0, 0.5),
    0 2px 6px -2px rgba(0, 0, 0, 0.22);
  transition: background 0.3s var(--ease), box-shadow 0.3s var(--ease), border-color 0.3s var(--ease);
}

.site-header.is-stuck .nav {
  background: color-mix(in srgb, var(--panel) 80%, transparent);
  border-color: var(--glass-edge-strong);
  box-shadow:
    inset 0 1px 0 0 var(--glass-hi),
    0 16px 36px -16px rgba(0, 0, 0, 0.62),
    0 3px 10px -3px rgba(0, 0, 0, 0.3);
}

.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  color: var(--text);
  font-weight: 600;
  font-size: 0.95rem;
  letter-spacing: -0.01em;
  white-space: nowrap;
}
.brand:hover { color: var(--text); }

.brand-mark {
  width: 28px;
  height: 28px;
  flex: none;
  border-radius: 50%;
  object-fit: cover;
  background: var(--panel-2);
  border: 1px solid var(--line);
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 4px;
  list-style: none;
  margin: 0;
  padding: 0;
}

.nav-links a {
  display: block;
  padding: 7px 13px;
  border-radius: 8px;
  font-size: 0.875rem;
  font-weight: 450;
  color: var(--text-dim);
  transition: color 0.18s var(--ease), background 0.18s var(--ease);
}
.nav-links a:hover { color: var(--text); background: var(--panel-2); }
.nav-links a[aria-current="page"] { color: var(--text); font-weight: 550; }

.nav-actions { display: flex; align-items: center; gap: 8px; }

.icon-btn {
  width: 36px;
  height: 36px;
  display: grid;
  place-items: center;
  border: 1px solid var(--line);
  border-radius: 9px;
  background: transparent;
  color: var(--text-dim);
  cursor: pointer;
  padding: 0;
  transition: all 0.18s var(--ease);
}
.icon-btn:hover {
  color: var(--text);
  border-color: var(--line-2);
  background: var(--panel-2);
}
.icon-btn svg { width: 16px; height: 16px; }

.theme-toggle .moon { display: none; }
html[data-theme="light"] .theme-toggle .moon { display: block; }
html[data-theme="light"] .theme-toggle .sun { display: none; }

.nav-toggle { display: none; }

/* ---------- buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  padding: 11px 20px;
  border-radius: 10px;
  border: 1px solid var(--line);
  background: transparent;
  color: var(--text);
  font-family: var(--sans);
  font-size: 0.875rem;
  font-weight: 500;
  cursor: pointer;
  transition: all 0.2s var(--ease);
  white-space: nowrap;
}
.btn:hover {
  color: var(--text);
  border-color: var(--line-2);
  background: var(--panel-2);
  transform: translateY(-1px);
}
.btn svg { width: 15px; height: 15px; flex: none; }

.btn--primary {
  background: var(--accent);
  border-color: var(--accent);
  color: #fff;
}
.btn--primary:hover {
  background: var(--accent-2);
  border-color: var(--accent-2);
  color: #fff;
  box-shadow: 0 8px 24px -8px var(--accent);
}

/* ---------- hero ---------- */
.hero {
  position: relative;
  padding: clamp(56px, 8vw, 104px) 0 clamp(64px, 8vw, 100px);
  overflow: hidden;
}

.hero-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.08fr) minmax(0, 0.92fr);
  gap: clamp(32px, 5vw, 72px);
  align-items: center;
}

.hero-status {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  padding: 6px 13px 6px 10px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: var(--panel);
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.06em;
  color: var(--text-dim);
  margin-bottom: 26px;
}

.pulse {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: #3ddc84;
  box-shadow: 0 0 0 0 rgba(61, 220, 132, 0.6);
  animation: pulse 2.4s infinite;
  flex: none;
}
@keyframes pulse {
  0%   { box-shadow: 0 0 0 0 rgba(61, 220, 132, 0.55); }
  70%  { box-shadow: 0 0 0 7px rgba(61, 220, 132, 0); }
  100% { box-shadow: 0 0 0 0 rgba(61, 220, 132, 0); }
}

.hero h1 {
  font-size: clamp(2.6rem, 6.4vw, 4.1rem);
  font-weight: 620;
  letter-spacing: -0.038em;
  line-height: 1.02;
  margin-bottom: 8px;
}

.hero-role {
  font-family: var(--mono);
  font-size: clamp(0.85rem, 1.6vw, 0.98rem);
  color: var(--accent);
  letter-spacing: 0.01em;
  margin-bottom: 26px;
  min-height: 1.6em;
}
.hero-role .caret {
  display: inline-block;
  width: 2px;
  height: 1em;
  background: var(--accent);
  margin-left: 3px;
  vertical-align: -0.14em;
  animation: blink 1.1s steps(2, start) infinite;
}
@keyframes blink { to { visibility: hidden; } }

.hero-bio {
  font-size: 1.03rem;
  line-height: 1.78;
  color: var(--text-dim);
  max-width: 56ch;
  margin-bottom: 28px;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-bottom: 30px;
}

.hero-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 22px;
  font-family: var(--mono);
  font-size: 12px;
  color: var(--muted);
}
.hero-meta span { display: inline-flex; align-items: center; gap: 7px; }
.hero-meta svg { width: 13px; height: 13px; opacity: 0.75; }

/* hero canvas panel */
.hero-visual {
  position: relative;
  aspect-ratio: 1 / 1;
  border: 1px solid var(--line);
  border-radius: 18px;
  background:
    radial-gradient(ellipse 70% 55% at 50% 100%, var(--accent-dim), transparent 70%),
    var(--panel);
  overflow: hidden;
}
.hero-visual canvas {
  display: block;
  width: 100%;
  height: 100%;
}

.visual-label {
  position: absolute;
  left: 16px;
  bottom: 14px;
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--muted);
  pointer-events: none;
}
.visual-corner {
  position: absolute;
  top: 14px;
  right: 16px;
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: 0.1em;
  color: var(--muted);
  pointer-events: none;
}

/* corner ticks on the visual frame */
.hero-visual::after {
  content: "";
  position: absolute;
  inset: 14px;
  pointer-events: none;
  border: 1px solid var(--line);
  border-radius: 10px;
  opacity: 0.55;
  mask-image:
    linear-gradient(to right, #000 0 26px, transparent 26px calc(100% - 26px), #000 calc(100% - 26px) 100%),
    linear-gradient(to bottom, #000 0 26px, transparent 26px calc(100% - 26px), #000 calc(100% - 26px) 100%);
  -webkit-mask-image:
    linear-gradient(to right, #000 0 26px, transparent 26px calc(100% - 26px), #000 calc(100% - 26px) 100%),
    linear-gradient(to bottom, #000 0 26px, transparent 26px calc(100% - 26px), #000 calc(100% - 26px) 100%);
  -webkit-mask-composite: source-in;
  mask-composite: intersect;
}

/* ---------- affiliations marquee ---------- */
.affil {
  padding: 26px 0;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  overflow: hidden;
}
.affil-inner {
  display: flex;
  align-items: center;
  gap: 20px;
}
.affil-label {
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--muted);
  white-space: nowrap;
  flex: none;
  padding-right: 22px;
  border-right: 1px solid var(--line);
}
.marquee {
  flex: 1;
  overflow: hidden;
  mask-image: linear-gradient(90deg, transparent, #000 6%, #000 94%, transparent);
  -webkit-mask-image: linear-gradient(90deg, transparent, #000 6%, #000 94%, transparent);
}
.marquee-track {
  display: flex;
  align-items: center;
  gap: 56px;
  width: max-content;
  animation: scroll-x 38s linear infinite;
}
.marquee:hover .marquee-track { animation-play-state: paused; }
@keyframes scroll-x {
  from { transform: translateX(0); }
  to   { transform: translateX(-50%); }
}
/* logos vary wildly in colour, so flatten them to silhouettes that read
   against either theme rather than trying to tint each one */
.marquee img {
  height: 30px;
  width: auto;
  object-fit: contain;
  opacity: 0.5;
  filter: grayscale(1) brightness(0);
  transition: opacity 0.25s var(--ease), filter 0.25s var(--ease);
}
html[data-theme="dark"] .marquee img { filter: grayscale(1) brightness(0) invert(1); }
.marquee img:hover { opacity: 1; }
html[data-theme="light"] .marquee img:hover { filter: none; }

/* ---------- generic cards & grids ---------- */
.card {
  position: relative;
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 26px;
  transition: border-color 0.25s var(--ease), transform 0.25s var(--ease), background 0.25s var(--ease);
}
.card:hover {
  border-color: var(--line-2);
  transform: translateY(-3px);
}

.grid-2 { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 18px; }
.grid-3 { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 18px; }
.grid-4 { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 18px; }

/* ---------- research area cards ---------- */
.area-card { display: flex; flex-direction: column; gap: 12px; }
.area-num {
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.12em;
  color: var(--accent);
}
.area-card h3 { font-size: 1.06rem; }
.area-card p { color: var(--text-dim); font-size: 0.925rem; line-height: 1.7; }

.tag-row { display: flex; flex-wrap: wrap; gap: 6px; margin-top: auto; padding-top: 6px; }
.tag {
  font-family: var(--mono);
  font-size: 10.5px;
  letter-spacing: 0.04em;
  padding: 4px 9px;
  border-radius: 6px;
  background: var(--panel-2);
  border: 1px solid var(--line);
  color: var(--muted);
  white-space: nowrap;
}
.tag--accent {
  background: var(--accent-dim);
  border-color: transparent;
  color: var(--accent);
}

/* ---------- stats ---------- */
.stats { display: grid; grid-template-columns: repeat(4, 1fr); gap: 1px; background: var(--line); border: 1px solid var(--line); border-radius: var(--radius); overflow: hidden; }
.stat { background: var(--panel); padding: 26px 22px; }
.stat-num {
  font-size: clamp(1.7rem, 3.4vw, 2.3rem);
  font-weight: 620;
  letter-spacing: -0.03em;
  line-height: 1;
  margin-bottom: 8px;
  font-variant-numeric: tabular-nums;
}
.stat-label {
  font-family: var(--mono);
  font-size: 10.5px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--muted);
  line-height: 1.5;
}

/* ---------- publications ---------- */
.pub-list { display: flex; flex-direction: column; gap: 0; border-top: 1px solid var(--line); }

.pub {
  display: grid;
  grid-template-columns: 96px minmax(0, 1fr);
  gap: 24px;
  padding: 26px 4px;
  border-bottom: 1px solid var(--line);
  align-items: start;
  transition: background 0.25s var(--ease);
}
.pub:hover { background: var(--panel); }

.pub-thumb {
  width: 96px;
  height: 72px;
  border-radius: 9px;
  overflow: hidden;
  border: 1px solid var(--line);
  background: var(--panel-2);
}
.pub-thumb img { width: 100%; height: 100%; object-fit: cover; }

.pub-title {
  font-size: 1.02rem;
  font-weight: 550;
  line-height: 1.45;
  margin-bottom: 7px;
  letter-spacing: -0.012em;
}
.pub-authors { font-size: 0.9rem; color: var(--text-dim); margin-bottom: 9px; }
.pub-authors .me { color: var(--text); font-weight: 600; }
.pub-desc { font-size: 0.895rem; color: var(--muted); margin-bottom: 11px; line-height: 1.65; }

.pub-venue {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--mono);
  font-size: 10.5px;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--accent);
  background: var(--accent-dim);
  padding: 5px 11px;
  border-radius: 6px;
}

/* ---------- news / timeline ---------- */
.news { list-style: none; margin: 0; padding: 0; }
.news li {
  display: grid;
  grid-template-columns: 118px minmax(0, 1fr);
  gap: 22px;
  padding: 15px 0;
  border-bottom: 1px solid var(--line);
  font-size: 0.945rem;
}
.news li:first-child { border-top: 1px solid var(--line); }
.news time {
  font-family: var(--mono);
  font-size: 11.5px;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  color: var(--muted);
  padding-top: 3px;
}
.news p { color: var(--text-dim); }
.news strong { color: var(--text); font-weight: 550; }

/* ---------- timeline (CV) ---------- */
.timeline { position: relative; padding-left: 26px; }
.timeline::before {
  content: "";
  position: absolute;
  left: 4px;
  top: 8px;
  bottom: 8px;
  width: 1px;
  background: var(--line);
}
.tl-item { position: relative; padding-bottom: 34px; }
.tl-item:last-child { padding-bottom: 0; }
.tl-item::before {
  content: "";
  position: absolute;
  left: -26px;
  top: 8px;
  width: 9px;
  height: 9px;
  border-radius: 50%;
  background: var(--bg);
  border: 1.5px solid var(--accent);
}
.tl-head {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  justify-content: space-between;
  gap: 6px 18px;
  margin-bottom: 3px;
}
.tl-role { font-size: 1.02rem; font-weight: 570; letter-spacing: -0.012em; }
.tl-date {
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.05em;
  color: var(--muted);
  white-space: nowrap;
}
.tl-org { color: var(--accent); font-size: 0.92rem; margin-bottom: 11px; }
.tl-item ul { margin: 0; padding-left: 17px; display: flex; flex-direction: column; gap: 7px; }
.tl-item li { color: var(--text-dim); font-size: 0.925rem; line-height: 1.65; }
.tl-item li::marker { color: var(--muted); }

/* ---------- project cards ---------- */
.proj-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 20px; }

.proj {
  display: flex;
  flex-direction: column;
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow: hidden;
  transition: border-color 0.25s var(--ease), transform 0.25s var(--ease);
}
.proj:hover { border-color: var(--line-2); transform: translateY(-4px); }

.proj-media {
  position: relative;
  aspect-ratio: 16 / 10;
  overflow: hidden;
  background: var(--panel-2);
  border-bottom: 1px solid var(--line);
}
.proj-media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.6s var(--ease), filter 0.4s var(--ease);
  filter: saturate(0.85);
}
.proj:hover .proj-media img { transform: scale(1.045); filter: saturate(1); }

.proj-award {
  position: absolute;
  top: 11px;
  left: 11px;
  font-family: var(--mono);
  font-size: 10px;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  padding: 5px 10px;
  border-radius: 6px;
  background: rgba(8, 10, 14, 0.72);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  color: #ffd479;
  border: 1px solid rgba(255, 212, 121, 0.28);
}

.proj-body { padding: 20px; display: flex; flex-direction: column; gap: 10px; flex: 1; }
.proj-kicker {
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--muted);
}
.proj-body h3 { font-size: 1rem; line-height: 1.4; letter-spacing: -0.014em; }
.proj-body p { font-size: 0.89rem; color: var(--text-dim); line-height: 1.65; }

/* filter bar */
.filters {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 34px;
}
.filter {
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  padding: 8px 15px;
  border-radius: 8px;
  border: 1px solid var(--line);
  background: transparent;
  color: var(--muted);
  cursor: pointer;
  transition: all 0.2s var(--ease);
}
.filter:hover { color: var(--text); border-color: var(--line-2); }
.filter.is-active {
  background: var(--accent);
  border-color: var(--accent);
  color: #fff;
}

.proj[hidden] { display: none; }

/* ---------- speaking / outreach cards ---------- */
.tile {
  display: flex;
  flex-direction: column;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow: hidden;
  background: var(--panel);
  transition: border-color 0.25s var(--ease), transform 0.25s var(--ease);
}
.tile:hover { border-color: var(--line-2); transform: translateY(-3px); }
.tile-media { aspect-ratio: 4 / 3; overflow: hidden; background: var(--panel-2); border-bottom: 1px solid var(--line); }
.tile-media img { width: 100%; height: 100%; object-fit: cover; }
.tile-body { padding: 17px 18px; }
.tile-body h3 { font-size: 0.94rem; line-height: 1.45; margin-bottom: 6px; letter-spacing: -0.01em; }
.tile-body p { font-size: 0.85rem; color: var(--muted); line-height: 1.6; }

/* simple list rows */
.rows { border-top: 1px solid var(--line); }
.row-item {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 18px;
  align-items: center;
  padding: 17px 4px;
  border-bottom: 1px solid var(--line);
  transition: background 0.2s var(--ease);
}
.row-item:hover { background: var(--panel); }
.row-title { font-size: 0.95rem; font-weight: 500; letter-spacing: -0.01em; }
.row-sub { font-size: 0.855rem; color: var(--muted); margin-top: 3px; }
.row-meta {
  font-family: var(--mono);
  font-size: 11px;
  color: var(--muted);
  letter-spacing: 0.05em;
  white-space: nowrap;
}

/* ---------- page header (interior pages) ---------- */
.page-head {
  padding: clamp(52px, 7vw, 88px) 0 clamp(38px, 5vw, 56px);
  border-bottom: 1px solid var(--line);
}
.page-head h1 {
  font-size: clamp(2.1rem, 5vw, 3.1rem);
  letter-spacing: -0.035em;
  margin-bottom: 16px;
}
.page-head p { color: var(--text-dim); max-width: 66ch; font-size: 1.03rem; line-height: 1.75; }

/* ---------- contact / CTA ---------- */
.cta {
  position: relative;
  border: 1px solid var(--line);
  border-radius: 18px;
  padding: clamp(34px, 5vw, 58px);
  background:
    radial-gradient(ellipse 60% 100% at 50% 0%, var(--accent-dim), transparent 70%),
    var(--panel);
  text-align: center;
  overflow: hidden;
}
.cta h2 { font-size: clamp(1.5rem, 3.4vw, 2.1rem); margin-bottom: 14px; }
.cta p { color: var(--text-dim); max-width: 56ch; margin: 0 auto 26px; }
.cta-actions { display: flex; flex-wrap: wrap; gap: 10px; justify-content: center; }

/* ---------- footer ---------- */
.site-footer {
  border-top: 1px solid var(--line);
  padding: 46px 0 34px;
  margin-top: 0;
}
.footer-grid {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  align-items: flex-start;
  gap: 28px;
  padding-bottom: 30px;
  border-bottom: 1px solid var(--line);
}
.footer-brand { max-width: 34ch; }
.footer-brand p { font-size: 0.9rem; color: var(--muted); margin-top: 10px; line-height: 1.7; }
.footer-cols { display: flex; gap: 56px; flex-wrap: wrap; }
.footer-col h4 {
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--muted);
  margin-bottom: 13px;
  font-weight: 500;
}
.footer-col ul { list-style: none; margin: 0; padding: 0; display: flex; flex-direction: column; gap: 8px; }
.footer-col a { font-size: 0.885rem; color: var(--text-dim); }
.footer-col a:hover { color: var(--accent); }

.footer-bottom {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 12px;
  padding-top: 24px;
  font-family: var(--mono);
  font-size: 11px;
  color: var(--muted);
  letter-spacing: 0.04em;
}

/* ---------- scroll reveal ---------- */
.reveal {
  opacity: 0;
  transform: translateY(18px);
  transition: opacity 0.7s var(--ease), transform 0.7s var(--ease);
}
.reveal.is-visible { opacity: 1; transform: none; }
.reveal[data-delay="1"] { transition-delay: 0.07s; }
.reveal[data-delay="2"] { transition-delay: 0.14s; }
.reveal[data-delay="3"] { transition-delay: 0.21s; }
.reveal[data-delay="4"] { transition-delay: 0.28s; }

/* ---------- responsive ---------- */
@media (max-width: 960px) {
  .hero-grid { grid-template-columns: 1fr; }
  .hero-visual { max-width: 460px; margin: 0 auto; order: -1; }
  .grid-4, .stats { grid-template-columns: repeat(2, 1fr); }
  .grid-3, .proj-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .footer-cols { gap: 36px; }
}

@media (max-width: 780px) {
  /* detached glass panel hanging below the pill */
  .nav-links {
    position: fixed;
    top: 80px;
    left: 20px;
    right: 20px;
    flex-direction: column;
    align-items: stretch;
    gap: 2px;
    padding: 10px;
    border-radius: 22px;
    background: var(--panel);
    background: color-mix(in srgb, var(--panel) 86%, transparent);
    backdrop-filter: saturate(180%) blur(20px);
    -webkit-backdrop-filter: saturate(180%) blur(20px);
    border: 1px solid var(--glass-edge);
    box-shadow:
      inset 0 1px 0 0 var(--glass-hi),
      0 20px 44px -18px rgba(0, 0, 0, 0.6);
    opacity: 0;
    visibility: hidden;
    transform: translateY(-10px) scale(0.98);
    transform-origin: top center;
    transition: opacity 0.25s var(--ease), transform 0.3s var(--ease), visibility 0.3s;
  }
  .nav-links.is-open { opacity: 1; visibility: visible; transform: none; }
  .nav-links a { padding: 12px 14px; font-size: 0.95rem; }
  .nav-toggle { display: grid; }
  .section { padding: 68px 0; }
  .wrap { padding: 0 20px; }
}

@media (max-width: 620px) {
  .grid-2, .grid-3, .grid-4, .proj-grid, .stats { grid-template-columns: 1fr; }
  .pub { grid-template-columns: 1fr; gap: 14px; }
  .pub-thumb { width: 100%; height: 150px; }
  .news li { grid-template-columns: 1fr; gap: 4px; }
  .row-item { grid-template-columns: 1fr; align-items: start; }
  .hero-actions .btn { flex: 1 1 auto; justify-content: center; }
}

/* ---------- print (CV page) ---------- */
@media print {
  body::before, .site-header, .site-footer, .cta, .no-print { display: none !important; }
  body { background: #fff; color: #000; font-size: 11pt; }
  .section { padding: 14pt 0; border-top: 1px solid #ccc; }
  a { color: #000; text-decoration: none; }
  .wrap { max-width: none; padding: 0; }
  .reveal { opacity: 1 !important; transform: none !important; }
}

@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;
  }
  .reveal { opacity: 1; transform: none; }
}