@import url('https://fonts.googleapis.com/css2?family=Playfair+Display:wght@500;600;700;800&family=Poppins:wght@300;400;500;600;700&display=swap');

:root {
  color-scheme: dark;
  --bg: #071017;
  --surface: #0c151d;
  --surface-soft: #101920;
  --text: #f3f1ed;
  --muted: #a6a8ad;
  --line: rgba(250, 93, 54, 0.2);
  --line-soft: rgba(255, 255, 255, 0.08);
  --accent: #fa6544;
  --accent-deep: #d84e31;
  --accent-rgb: 250, 101, 68;
  --header: rgba(7, 16, 23, 0.72);
  --shadow: rgba(0, 0, 0, 0.28);
  --radius: 16px;
  --font-body: 'Poppins', sans-serif;
  --font-display: 'Playfair Display', serif;
}

body.light {
  color-scheme: light;
  --bg: #f7f4ef;
  --surface: #fffdf9;
  --surface-soft: #f0ebe4;
  --text: #1d2228;
  --muted: #5e6268;
  --line: rgba(210, 71, 43, 0.22);
  --line-soft: rgba(29, 34, 40, 0.1);
  --header: rgba(247, 244, 239, 0.76);
  --shadow: rgba(45, 35, 28, 0.12);
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  min-width: 320px;
  overflow-x: hidden;
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.7;
  transition: background-color .3s ease, color .3s ease;
}

a { color: inherit; text-decoration: none; }
button, input, textarea { font: inherit; }
button, a { -webkit-tap-highlight-color: transparent; }
img { display: block; max-width: 100%; }

.shell {
  width: min(1180px, calc(100% - 48px));
  margin: 0 auto;
}

.section {
  position: relative;
  z-index: 2;
  padding: 130px 0;
  scroll-margin-top: 76px;
}

.background-grid {
  position: fixed;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  opacity: .075;
  background-image:
    linear-gradient(var(--text) 1px, transparent 1px),
    linear-gradient(90deg, var(--text) 1px, transparent 1px);
  background-size: 38px 38px;
  mask-image: linear-gradient(to bottom, transparent 0, black 14%, black 86%, transparent 100%);
}

.background-glow {
  position: fixed;
  z-index: 0;
  width: 520px;
  height: 520px;
  border-radius: 50%;
  pointer-events: none;
  filter: blur(120px);
  opacity: .12;
  background: rgba(var(--accent-rgb), .9);
}

.background-glow-top { top: -260px; right: -210px; }
.background-glow-bottom { bottom: -310px; left: -240px; opacity: .08; }

.site-header {
  position: fixed;
  inset: 0 0 auto;
  z-index: 50;
  padding: 16px 0;
  border-bottom: 1px solid transparent;
  background: transparent;
  transition: padding .25s ease, background .25s ease, border-color .25s ease;
}

.site-header.scrolled {
  padding: 10px 0;
  border-color: var(--line-soft);
  background: var(--header);
  backdrop-filter: blur(18px);
}

.nav-shell, .footer-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
  font-weight: 800;
  letter-spacing: -1px;
}

.brand-terminal {
  display: grid;
  width: 42px;
  height: 42px;
  place-items: center;
  border: 1px solid rgba(var(--accent-rgb), .12);
  border-radius: 11px;
  color: var(--accent);
  background: rgba(var(--accent-rgb), .09);
  box-shadow: inset 0 0 18px rgba(var(--accent-rgb), .04);
}

.brand-code { font-size: 20px; }
.brand-code::first-letter, .brand-code b { color: var(--accent); }
.brand-code b { color: inherit; }

.nav-actions { display: flex; align-items: center; gap: 14px; }

.nav-pill {
  display: flex;
  align-items: center;
  gap: 2px;
  padding: 5px;
  border: 1px solid var(--line-soft);
  border-radius: 999px;
  background: rgba(16, 25, 32, .72);
  box-shadow: 0 14px 45px var(--shadow);
  backdrop-filter: blur(16px);
}

body.light .nav-pill { background: rgba(255, 253, 249, .75); }

.nav-link {
  padding: 8px 17px;
  border-radius: 999px;
  color: var(--muted);
  font-size: 14px;
  font-weight: 500;
  transition: color .2s ease, background .2s ease, transform .2s ease;
}

.nav-link:hover { color: var(--text); }
.nav-link.active { color: #fff; background: var(--accent); box-shadow: 0 8px 20px rgba(var(--accent-rgb), .22); }
.nav-link:active { transform: scale(.97); }

.theme-toggle, .menu-toggle {
  display: grid;
  place-items: center;
  border: 1px solid var(--line-soft);
  color: var(--text);
  background: rgba(16, 25, 32, .65);
  cursor: pointer;
}

.theme-toggle {
  width: 44px;
  height: 44px;
  border-radius: 50%;
  font-size: 22px;
  transition: transform .25s ease, border-color .25s ease;
}

.theme-toggle:hover { transform: rotate(-30deg); border-color: var(--line); }
.menu-toggle { display: none; width: 44px; height: 44px; border-radius: 12px; gap: 4px; }
.menu-toggle span { width: 20px; height: 2px; background: currentColor; transition: .25s ease; }

.hero {
  isolation: isolate;
  min-height: 100dvh;
  display: flex;
  align-items: center;
  padding-top: 105px;
  padding-bottom: 60px;
}

.hero-network {
  position: absolute;
  inset: 0;
  z-index: -1;
  width: 100%;
  height: 100%;
  pointer-events: none;
  opacity: .9;
  mask-image: radial-gradient(ellipse at 62% 50%, black 0 38%, transparent 82%);
}

.hero::before, .hero::after {
  content: '';
  position: absolute;
  height: 2px;
  background: linear-gradient(90deg, transparent, var(--accent));
  opacity: .55;
}

.hero::before { width: 42%; left: 0; top: 110px; }
.hero::after { width: 90px; left: 0; bottom: 37%; }

.hero-grid {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: 1.04fr .96fr;
  align-items: center;
  gap: 76px;
}

.hero-copy { position: relative; }

.hero-kicker {
  margin: 0 0 18px;
  color: var(--accent);
  font-size: 20px;
  font-weight: 500;
}

.hero-title {
  margin: 0;
  font-family: var(--font-display);
  font-size: clamp(64px, 7vw, 104px);
  line-height: .92;
  letter-spacing: -4px;
  font-weight: 700;
}

.accent-rule {
  width: min(100%, 560px);
  height: 4px;
  margin: 24px 0 20px;
  border-radius: 4px;
  background: linear-gradient(90deg, var(--accent-deep), rgba(var(--accent-rgb), .45));
}

.hero-intro {
  max-width: 600px;
  margin: 0;
  color: var(--muted);
  font-size: clamp(17px, 1.45vw, 21px);
  line-height: 1.55;
}

.hero-intro strong { color: var(--accent); font-weight: 600; }
.hero-buttons { display: flex; gap: 14px; margin-top: 30px; }

.button {
  display: inline-flex;
  min-height: 48px;
  align-items: center;
  justify-content: center;
  gap: 13px;
  padding: 11px 23px;
  border: 1px solid transparent;
  border-radius: 999px;
  font-weight: 600;
  cursor: pointer;
  transition: transform .2s ease, box-shadow .2s ease, background .2s ease, border-color .2s ease;
}

.button:hover { transform: translateY(-2px); }
.button:active { transform: translateY(0) scale(.98); }
.button-primary { color: #fff; background: var(--accent); box-shadow: 0 14px 30px rgba(var(--accent-rgb), .22); }
.button-primary:hover { background: var(--accent-deep); box-shadow: 0 18px 36px rgba(var(--accent-rgb), .3); }
.button-ghost { color: var(--text); background: rgba(255, 255, 255, .025); }
.button-ghost:hover { background: rgba(var(--accent-rgb), .08); }
.button-outline { min-height: 42px; padding: 8px 20px; border-color: rgba(255,255,255,.35); color: #fff; }

.social-row { display: flex; align-items: center; flex-wrap: wrap; gap: 13px; margin-top: 34px; }

.social-link {
  display: grid;
  width: 37px;
  height: 37px;
  place-items: center;
  border-radius: 50%;
  color: var(--muted);
  font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
  font-weight: 700;
  transition: color .2s ease, background .2s ease, transform .2s ease;
}

.social-link:hover { color: var(--accent); background: rgba(var(--accent-rgb), .08); transform: translateY(-3px); }

.hero-visual {
  position: relative;
  width: min(100%, 510px);
  aspect-ratio: 1;
  margin-inline: auto;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(var(--accent-rgb), .17), rgba(var(--accent-rgb), .04) 42%, transparent 68%);
  will-change: transform;
}

.orbit {
  position: absolute;
  inset: 12%;
  border: 1px solid rgba(var(--accent-rgb), .5);
  border-radius: 50%;
}

.orbit-one { inset: 17%; animation: orbit-pulse 4.2s ease-in-out infinite; }
.orbit-two { inset: 11%; animation: orbit-spin 18s linear infinite; }
.orbit-three { inset: 5%; border-width: 2px; border-color: rgba(var(--accent-rgb), .22); animation: orbit-spin 26s linear infinite reverse; }

.orbit-center {
  position: absolute;
  inset: 34%;
  display: grid;
  place-items: center;
  border: 1px solid rgba(var(--accent-rgb), .18);
  border-radius: 50%;
  color: var(--accent);
  font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
  font-size: clamp(42px, 5vw, 62px);
  font-weight: 800;
  text-shadow: 0 0 25px rgba(var(--accent-rgb), .25);
}

.orbit-dot { position: absolute; width: 14px; height: 14px; border-radius: 50%; background: var(--accent); box-shadow: 0 0 18px rgba(var(--accent-rgb), .65); }
.dot-one { top: 25%; left: 49%; animation: dot-float 3.1s ease-in-out infinite; }
.dot-two { top: 37%; right: 17%; width: 18px; height: 18px; animation: dot-float 4.2s ease-in-out infinite .4s; }
.dot-three { top: 31%; left: 35%; width: 9px; height: 9px; animation: dot-float 2.8s ease-in-out infinite .8s; }

.float-tile {
  position: absolute;
  display: grid;
  width: 58px;
  height: 58px;
  place-items: center;
  border: 1px solid rgba(var(--accent-rgb), .18);
  border-radius: 13px;
  color: var(--accent);
  background: rgba(12, 21, 29, .72);
  box-shadow: 0 20px 45px var(--shadow), inset 0 0 22px rgba(var(--accent-rgb), .04);
  backdrop-filter: blur(12px);
  font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
  font-size: 24px;
  font-weight: 700;
  transition: translate .25s cubic-bezier(.16,1,.3,1), filter .25s ease, border-color .25s ease, box-shadow .25s ease;
  will-change: translate;
}

.tile-code { right: 1%; top: 56%; animation: tile-float 4s ease-in-out infinite; }
.tile-data { left: -3%; bottom: 4%; animation: tile-float 5.2s ease-in-out infinite .5s; }
.tile-db { right: 11%; top: 15%; animation: tile-float 4.6s ease-in-out infinite 1s; }

.section-heading { max-width: 820px; margin: 0 auto 72px; text-align: center; }
.section-heading h2, .about-copy h2 {
  margin: 20px 0 18px;
  font-family: var(--font-display);
  font-size: clamp(44px, 5vw, 68px);
  line-height: 1.08;
  letter-spacing: -2.5px;
}
.section-heading p { max-width: 760px; margin: 0 auto; color: var(--muted); font-size: 18px; }

.section-label {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 15px;
  color: var(--accent);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: .13em;
  text-transform: uppercase;
}

.section-label span { width: 38px; height: 1px; background: rgba(var(--accent-rgb), .6); }

.about-grid { display: grid; grid-template-columns: .95fr 1.05fr; align-items: center; gap: 110px; }
.portrait-wrap {
  position: relative;
  max-width: 470px;
  border: 2px solid rgba(var(--accent-rgb), .2);
  border-radius: var(--radius);
  background: var(--surface);
  box-shadow: 0 25px 50px -12px rgba(0, 0, 0, .25);
  transition: transform .5s cubic-bezier(.16,1,.3,1), border-color .5s ease, box-shadow .5s ease;
}
.portrait-media::after {
  content: '';
  position: absolute;
  inset: -1px;
  z-index: 2;
  pointer-events: none;
  border-radius: inherit;
  background: linear-gradient(120deg, transparent 25%, rgba(255,255,255,.14) 46%, transparent 67%);
  opacity: 0;
  transform: translateX(-35%);
  transition: opacity .5s ease, transform .7s cubic-bezier(.16,1,.3,1);
}
.portrait-media { position: relative; overflow: hidden; border-radius: calc(var(--radius) - 2px); }
.portrait-wrap img {
  width: 100%;
  aspect-ratio: 1;
  object-fit: cover;
  /* ponytail: ảnh gốc 3:4, cắt vuông lệch lên để mặt nằm ~1/3 trên; chỉnh số này nếu đổi ảnh */
  object-position: center 12%;
  border-radius: calc(var(--radius) - 2px);
  filter: saturate(.78) sepia(.12) brightness(.92);
  transition: transform .7s cubic-bezier(.16,1,.3,1), filter .5s ease;
}
.portrait-outline { position: absolute; inset: -30px auto auto -30px; width: 130px; height: 130px; border: 2px solid rgba(var(--accent-rgb), .38); border-radius: var(--radius); }
.portrait-caption { position: absolute; right: 0; bottom: 0; left: 0; padding: 30px 20px 18px; border-radius: 0 0 var(--radius) var(--radius); background: linear-gradient(transparent, rgba(7,16,23,.95)); }
.about-copy > .section-label { justify-content: flex-start; }
.about-copy { max-width: 600px; }
.about-copy p { margin: 0 0 20px; color: var(--muted); font-size: 17px; }
.about-copy strong { color: var(--accent); }

.skills { overflow: hidden; background: linear-gradient(180deg, transparent, rgba(var(--accent-rgb), .025), transparent); }
.skill-logo-marquee { position: relative; overflow: hidden; margin: -8px 0 38px; padding: 25px 0; border-block: 1px solid var(--line-soft); mask-image: linear-gradient(90deg, transparent, black 8%, black 92%, transparent); }
.skill-logo-track { display: flex; width: max-content; gap: 54px; animation: skill-logo-scroll 34s linear infinite; will-change: transform; }
.skill-logo-marquee:hover .skill-logo-track { animation-play-state: paused; }
.skill-logo-item { display: grid; flex: 0 0 92px; justify-items: center; gap: 9px; color: var(--muted); font-size: 11px; font-weight: 600; opacity: .65; filter: saturate(.72); transition: opacity .3s ease, filter .3s ease, transform .3s cubic-bezier(.16,1,.3,1); }
.skill-logo-item img { width: 58px; height: 58px; object-fit: contain; }
.skill-logo-item:hover { opacity: 1; filter: saturate(1); transform: translateY(-5px) scale(1.06); }
.skill-detail-panel { display: grid; justify-items: center; gap: 28px; }
.skill-detail-grid { display: grid; width: 100%; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.skill-detail-card { position: relative; isolation: isolate; overflow: hidden; min-height: 265px; padding: 24px; border-radius: var(--radius); transition: transform .35s cubic-bezier(.16,1,.3,1), border-color .35s ease, box-shadow .35s ease; }
.skill-detail-card::before { content: ''; position: absolute; inset: 0 0 auto; height: 3px; background: linear-gradient(90deg, var(--accent), transparent 78%); }
.skill-detail-card:nth-child(n+7) { display: none; }
.skill-detail-panel.expanded .skill-detail-card { display: block; animation: skill-card-in .5s cubic-bezier(.16,1,.3,1) both; }
.skill-detail-head, .skill-score { display: flex; align-items: center; justify-content: space-between; gap: 18px; }
.skill-detail-logo { display: grid; width: 68px; height: 68px; place-items: center; border: 1px solid var(--line-soft); border-radius: 14px; background: rgba(var(--accent-rgb), .04); transition: transform .35s cubic-bezier(.16,1,.3,1), background-color .35s ease; }
.skill-detail-logo img { width: 48px; height: 48px; object-fit: contain; }
.skill-category { padding: 5px 10px; border: 1px solid rgba(var(--accent-rgb), .2); border-radius: 999px; color: var(--accent); background: rgba(var(--accent-rgb), .06); font-size: 10px; font-weight: 700; text-transform: uppercase; }
.skill-detail-card h3 { margin: 18px 0 3px; font-family: var(--font-display); font-size: 25px; }
.skill-detail-card > p { min-height: 50px; margin: 0 0 16px; color: var(--muted); font-size: 12px; line-height: 1.6; }
.skill-foot { position: relative; min-height: 62px; }
.skill-topics { display: flex; flex-wrap: wrap; gap: 6px; transition: opacity .3s ease; }
.skill-topic { padding: 4px 8px; border: 1px solid var(--line-soft); border-radius: 6px; color: var(--muted); background: rgba(var(--accent-rgb), .04); font-size: 10.5px; font-weight: 600; letter-spacing: .01em; white-space: nowrap; }
.skill-gauge { margin-top: 14px; transition: opacity .3s ease; }
.skill-score { margin-bottom: 9px; font-size: 12px; }
.skill-score strong { color: var(--text); }
.skill-score span { color: var(--accent); font-family: ui-monospace, SFMono-Regular, Menlo, monospace; font-weight: 800; }
.skill-meter { height: 8px; overflow: hidden; border-radius: 999px; background: rgba(var(--accent-rgb), .09); box-shadow: inset 0 0 0 1px var(--line-soft); }
.skill-meter span { display: block; width: var(--skill-percent); height: 100%; border-radius: inherit; background: linear-gradient(90deg, var(--accent-deep), var(--accent)); box-shadow: 0 0 18px rgba(var(--accent-rgb), .28); transform: scaleX(0); transform-origin: left; transition: transform 1s .2s cubic-bezier(.16,1,.3,1); }
.skill-detail-panel.visible .skill-meter span { transform: scaleX(1); }
.skill-more { width: auto; padding: 10px 17px; border: 1px solid rgba(var(--accent-rgb), .3); border-radius: 999px; color: var(--accent); background: rgba(var(--accent-rgb), .06); cursor: pointer; font-size: 12px; font-weight: 700; transition: color .25s ease, background-color .25s ease, transform .25s ease; }
.skill-more span { display: inline-block; margin-left: 5px; transition: transform .25s ease; }
.skill-more:hover { color: #fff; background: var(--accent); transform: translateY(-3px); }
.skill-detail-panel.expanded .skill-more span { transform: rotate(180deg); }

.skill-detail-card, .project-card, .contact-panel, .timeline-detail {
  border: 2px solid rgba(var(--accent-rgb), .1);
  background: rgba(12, 21, 29, .72);
  box-shadow: 0 28px 70px var(--shadow);
  backdrop-filter: blur(12px);
}
body.light .skill-detail-card, body.light .project-card, body.light .contact-panel, body.light .timeline-detail { background: rgba(255, 253, 249, .82); }
.skill-detail-card::after, .timeline-detail::before, .contact-panel::before {
  content: '';
  position: absolute;
  inset: 0;
  z-index: -1;
  pointer-events: none;
  background: radial-gradient(circle at 18% 8%, rgba(var(--accent-rgb), .12), transparent 38%);
  opacity: 0;
  transition: opacity .4s ease;
}
.contact-info h3 { margin: 0 0 16px; font-family: var(--font-display); font-size: 24px; }
.tag-list { display: flex; flex-wrap: wrap; gap: 9px; }
.tag { padding: 5px 12px; border: 1px solid rgba(var(--accent-rgb), .25); border-radius: 8px; color: var(--accent); background: rgba(var(--accent-rgb), .08); font-size: 12px; font-weight: 500; transition: transform .25s ease, border-color .25s ease, background-color .25s ease; }

.certificates { overflow: hidden; background: linear-gradient(180deg, rgba(var(--accent-rgb), .025), transparent); }
.certificate-heading { display: flex; align-items: end; justify-content: space-between; gap: 28px; margin-bottom: 34px; }
.certificate-heading h2 { margin: 18px 0 12px; font-family: var(--font-display); font-size: clamp(42px, 5vw, 64px); line-height: 1; letter-spacing: -2px; }
.certificate-heading p { max-width: 650px; margin: 0; color: var(--muted); }
.certificate-heading .section-label { justify-content: flex-start; }
.certificate-controls { display: flex; align-items: center; gap: 10px; flex: 0 0 auto; }
.certificate-status { min-width: 58px; color: var(--muted); font-family: ui-monospace, SFMono-Regular, Menlo, monospace; font-size: 12px; text-align: center; }
.carousel-button {
  display: grid;
  width: 46px;
  height: 46px;
  place-items: center;
  border: 1px solid rgba(var(--accent-rgb), .28);
  border-radius: 50%;
  color: var(--accent);
  background: transparent;
  cursor: pointer;
  font-size: 21px;
  transition: color .2s ease, background .2s ease, transform .2s ease, border-color .2s ease;
}
.carousel-button:hover { color: #fff; border-color: var(--accent); background: var(--accent); transform: translateY(-3px); }
.certificate-stage { position: relative; height: 585px; overflow: hidden; outline: none; perspective: 1200px; cursor: grab; user-select: none; touch-action: pan-y; }
.certificate-stage::before { content: ''; position: absolute; right: 14%; bottom: 20px; left: 14%; height: 72px; border-radius: 50%; background: radial-gradient(ellipse, rgba(var(--accent-rgb), .15), transparent 68%); filter: blur(20px); }
.certificate-stage::after { content: ''; position: absolute; inset: 0; z-index: 30; pointer-events: none; background: linear-gradient(90deg, var(--bg), transparent 13%, transparent 87%, var(--bg)); }
.certificate-stage:focus-visible { box-shadow: inset 0 0 0 2px rgba(var(--accent-rgb), .45); border-radius: 20px; }
.certificate-stage.dragging { cursor: grabbing; }
.certificate-track { position: absolute; inset: 0; transform-style: preserve-3d; }
.certificate-card { position: absolute; top: 48%; left: 50%; width: clamp(240px, 24vw, 296px); overflow: hidden; border: 1px solid rgba(var(--accent-rgb), .2); border-radius: var(--radius); background: rgba(12, 21, 29, .94); box-shadow: 0 28px 65px rgba(0,0,0,.42); opacity: var(--card-opacity, 0); transform: translate(-50%, -50%) translateX(var(--card-x, 0)) translateZ(var(--card-z, 0)) rotateY(var(--card-rotate, 0)) scale(var(--card-scale, 1)); transform-style: preserve-3d; backface-visibility: hidden; transition: transform .72s cubic-bezier(.16,1,.3,1), opacity .42s ease, border-color .35s ease, box-shadow .35s ease; -webkit-box-reflect: below 5px linear-gradient(transparent 66%, rgba(0,0,0,.16)); }
.certificate-card.is-active { border-color: rgba(var(--accent-rgb), .62); box-shadow: 0 34px 72px rgba(0,0,0,.56), 0 0 42px rgba(var(--accent-rgb), .12); }
body.light .certificate-card { background: rgba(255, 253, 249, .8); }
.certificate-media { position: relative; display: block; width: 100%; aspect-ratio: 1; padding: 8px; overflow: hidden; border: 0; border-bottom: 1px solid var(--line-soft); background: var(--surface-soft); cursor: pointer; }
.certificate-media img { width: 100%; height: 100%; object-fit: contain; border-radius: 10px; background: #f4f1ea; transition: transform .55s cubic-bezier(.16,1,.3,1), filter .35s ease; }
.certificate-media span { position: absolute; right: 14px; bottom: 14px; padding: 5px 8px; border: 1px solid rgba(255,255,255,.22); border-radius: 999px; color: #fff; background: rgba(7,16,23,.76); font-size: 9px; opacity: 0; transform: translateY(6px); transition: opacity .3s ease, transform .3s ease; }
.certificate-body { padding: 17px 18px 18px; }
.certificate-meta { margin: 0 0 6px; color: var(--accent); font-size: 10.5px; font-weight: 700; letter-spacing: .04em; text-transform: uppercase; }
.certificate-body h3 { min-height: 46px; margin: 0 0 6px; font-family: var(--font-display); font-size: 19px; line-height: 1.18; }
.certificate-body > p:not(.certificate-meta) { display: -webkit-box; min-height: 34px; margin: 0 0 10px; overflow: hidden; color: var(--muted); font-size: 11px; line-height: 1.5; -webkit-box-orient: vertical; -webkit-line-clamp: 2; }
.certificate-body a { color: var(--accent); font-size: 12px; font-weight: 700; }
.drag-hint { margin: 3px 0 0; color: var(--muted); font-size: 11px; text-align: center; }
@media (hover: hover) and (pointer: fine) {
  .certificate-card.is-active:hover { border-color: var(--accent); box-shadow: 0 38px 80px rgba(0,0,0,.62), 0 0 48px rgba(var(--accent-rgb), .18); }
  .certificate-card.is-active:hover .certificate-media img { transform: scale(1.045); filter: saturate(1.06) brightness(1.04); }
  .certificate-card.is-active:hover .certificate-media span { opacity: 1; transform: translateY(0); }
}

.certificate-dialog { width: min(94vw, 1100px); max-height: 94vh; padding: 0; overflow: hidden; border: 1px solid rgba(var(--accent-rgb), .38); border-radius: 18px; color: var(--text); background: var(--surface); box-shadow: 0 30px 120px rgba(0,0,0,.65); }
.certificate-dialog::backdrop { background: rgba(3, 8, 12, .78); backdrop-filter: blur(8px); }
.certificate-dialog > img { width: 100%; max-height: 75vh; object-fit: contain; background: #111; }
.dialog-close { position: absolute; top: 12px; right: 12px; z-index: 1; display: grid; width: 38px; height: 38px; place-items: center; border: 1px solid rgba(255,255,255,.25); border-radius: 50%; color: #fff; background: rgba(7,16,23,.72); cursor: pointer; font-size: 25px; line-height: 1; }
.dialog-footer { display: flex; align-items: center; justify-content: space-between; gap: 18px; padding: 17px 20px; }
.dialog-footer div { display: grid; gap: 2px; }
.dialog-footer strong { font-family: var(--font-display); font-size: 19px; }
.dialog-footer span { color: var(--muted); font-size: 12px; }

.experience { overflow: hidden; }
.timeline { position: relative; max-width: 1120px; margin: 0 auto; }
.timeline::before { content: ''; position: absolute; top: 28px; bottom: 20px; left: 50%; width: 2px; background: linear-gradient(var(--accent), rgba(var(--accent-rgb), .12)); transform: translateX(-50%); }
.timeline-item { position: relative; display: grid; grid-template-columns: minmax(0, 1fr) 76px minmax(0, 1fr); margin-bottom: 90px; }
.timeline-item:last-child { margin-bottom: 0; }
.timeline-meta { grid-column: 3; grid-row: 1; padding: 6px 0 0 8px; text-align: left; }
.timeline-item:nth-child(even) .timeline-meta { grid-column: 1; padding: 6px 8px 0 0; text-align: right; }
.timeline-mark { position: absolute; top: 0; left: 50%; z-index: 2; display: grid; width: 54px; height: 54px; place-items: center; border: 3px solid var(--accent); border-radius: 50%; color: var(--accent); background: var(--surface); box-shadow: 0 0 0 8px var(--bg), 0 12px 26px rgba(var(--accent-rgb), .18); font-family: ui-monospace, SFMono-Regular, Menlo, monospace; font-size: 13px; font-weight: 800; transform: translateX(-50%); transition: color .3s ease, background-color .3s ease, transform .3s cubic-bezier(.16,1,.3,1), box-shadow .3s ease; }
.timeline-period, .timeline-duration { display: block; }
.timeline-period { color: var(--accent); font-size: 14px; font-weight: 700; }
.timeline-duration { margin-top: 1px; color: var(--muted); font-size: 12px; }
.timeline-meta h3 { margin: 18px 0 2px; font-family: var(--font-display); font-size: clamp(27px, 3vw, 34px); line-height: 1.13; transition: color .3s ease, transform .3s cubic-bezier(.16,1,.3,1); }
.timeline-meta p { margin: 2px 0; color: var(--muted); }
.timeline-company { font-size: 15px; font-weight: 600; }
.timeline-team { font-size: 13px; font-weight: 600; }
.timeline-location { font-size: 12px; }
.timeline-address { max-width: 34ch; font-size: 11.5px; line-height: 1.5; opacity: .78; }
.timeline-item:nth-child(even) .timeline-address { margin-left: auto; }
.timeline-detail { position: relative; isolation: isolate; grid-column: 1; grid-row: 1; overflow: hidden; padding: 30px 32px; border-color: rgba(var(--accent-rgb), .15); border-radius: var(--radius); transition: transform .35s cubic-bezier(.16,1,.3,1), border-color .35s ease, box-shadow .35s ease; }
.timeline-item:nth-child(even) .timeline-detail { grid-column: 3; }
.timeline-detail::after { content: ''; position: absolute; inset: 0; z-index: -1; pointer-events: none; background: linear-gradient(115deg, transparent 25%, rgba(255,255,255,.07) 48%, transparent 70%); opacity: 0; transform: translateX(-45%); transition: opacity .35s ease, transform .7s cubic-bezier(.16,1,.3,1); }
.timeline-detail-label { display: flex; align-items: center; justify-content: space-between; gap: 20px; margin-bottom: 18px; padding-bottom: 13px; border-bottom: 1px solid var(--line-soft); color: var(--accent); font-size: 11px; font-weight: 700; letter-spacing: .1em; text-transform: uppercase; }
.timeline-detail-label b { font-size: 16px; transition: transform .3s ease; }
.timeline-points { display: grid; gap: 13px; margin: 0 0 24px; padding: 0; list-style: none; }
.timeline-points li { position: relative; padding-left: 20px; color: var(--muted); font-size: 13px; line-height: 1.72; }
.timeline-points li::before { content: ''; position: absolute; top: .72em; left: 0; width: 6px; height: 6px; border-radius: 50%; background: var(--accent); box-shadow: 0 0 0 4px rgba(var(--accent-rgb), .08); }
.timeline-detail .tag { color: var(--text); background: transparent; border-color: var(--line-soft); }
.timeline-chips { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 18px; }
.timeline-item:nth-child(even) .timeline-chips { justify-content: flex-end; }
.timeline-chip { display: inline-flex; align-items: center; gap: 8px; padding: 8px 15px; border: 1px solid rgba(var(--accent-rgb), .28); border-radius: 999px; color: var(--accent); background: rgba(var(--accent-rgb), .05); font-size: 13px; font-weight: 600; white-space: nowrap; transition: color .25s ease, background-color .25s ease, border-color .25s ease, transform .25s ease; }
.timeline-chip svg { width: 16px; height: 16px; flex: none; }
.timeline-item.reveal:nth-child(2) { transition-delay: .08s; }
.timeline-item.reveal:nth-child(3) { transition-delay: .16s; }

.projects-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 28px; }
.project-card { position: relative; isolation: isolate; overflow: hidden; border-radius: var(--radius); transition: transform .4s cubic-bezier(.16,1,.3,1), border-color .4s ease, box-shadow .4s ease; }
.project-card:first-child { grid-column: 1 / -1; display: grid; grid-template-columns: 1.25fr .75fr; }
.project-card:first-child .project-media { height: 100%; min-height: 360px; }
.project-card:first-child .project-body { display: flex; flex-direction: column; justify-content: center; padding: 38px; }
.project-media { position: relative; height: 225px; overflow: hidden; background: var(--surface-soft); }
.project-media::after {
  content: '';
  position: absolute;
  inset: 0;
  pointer-events: none;
  background: linear-gradient(115deg, transparent 20%, rgba(255,255,255,.16) 48%, transparent 72%);
  opacity: 0;
  transform: translateX(-45%);
  transition: opacity .4s ease, transform .75s cubic-bezier(.16,1,.3,1);
}
.project-media img { width: 100%; height: 100%; object-fit: cover; filter: saturate(.7) contrast(.92) brightness(.86); transition: transform .7s cubic-bezier(.16,1,.3,1), filter .45s ease; }
.project-links { position: absolute; top: 14px; right: 14px; display: flex; gap: 8px; opacity: 0; transform: translateY(-8px); transition: .3s ease; }
.project-card:hover .project-links { opacity: 1; transform: translateY(0); }
.project-links a { padding: 6px 11px; border: 1px solid rgba(255,255,255,.22); border-radius: 999px; color: white; background: rgba(7,16,23,.72); font-size: 11px; backdrop-filter: blur(10px); }
.project-body { padding: 24px; }
.project-body h3 { margin: 0 0 10px; font-family: var(--font-display); font-size: 25px; }
.project-body p { min-height: 78px; margin: 0 0 18px; color: var(--muted); font-size: 14px; }
.project-body .tag-list { margin-bottom: 18px; }
.project-detail { color: var(--accent); font-size: 13px; font-weight: 600; }
.project-media-contain { background: #eef0f4; }
.project-media-contain img { object-fit: contain; padding: 22px; }
.projects-all { display: flex; justify-content: center; margin-top: 46px; }

.contact { background: linear-gradient(135deg, transparent 20%, rgba(var(--accent-rgb), .045), transparent 78%); }
.contact-panel { position: relative; isolation: isolate; display: grid; grid-template-columns: 1fr 1fr; overflow: hidden; max-width: 980px; margin: 0 auto; border-radius: var(--radius); transition: transform .4s cubic-bezier(.16,1,.3,1), border-color .4s ease, box-shadow .4s ease; }
.contact-info { padding: 48px; background: rgba(var(--accent-rgb), .035); }
.contact-info > p { color: var(--muted); }
.contact-list { display: grid; gap: 18px; margin: 28px 0; }
.contact-item { display: grid; grid-template-columns: 38px 1fr; align-items: center; gap: 12px; }
.contact-item span:first-child { display: grid; width: 38px; height: 38px; place-items: center; border-radius: 9px; color: var(--accent); background: rgba(var(--accent-rgb), .1); }
.contact-item small { display: block; color: var(--muted); font-size: 11px; }
.contact-item a, .contact-item p { margin: 0; font-size: 14px; }
.contact-buttons { display: flex; flex-wrap: wrap; gap: 10px; }
.contact-buttons .button { min-height: 42px; padding: 8px 16px; font-size: 13px; }
.contact-form { display: grid; gap: 18px; padding: 48px; }
.contact-form label { display: grid; gap: 7px; color: var(--muted); font-size: 13px; font-weight: 500; }
.contact-form input, .contact-form textarea { width: 100%; border: 1px solid var(--line-soft); border-radius: 11px; outline: none; color: var(--text); background: rgba(0,0,0,.08); padding: 12px 15px; resize: vertical; transition: border-color .2s ease, box-shadow .2s ease; }
.contact-form input:focus, .contact-form textarea:focus { border-color: rgba(var(--accent-rgb), .7); box-shadow: 0 0 0 3px rgba(var(--accent-rgb), .1); }
.contact-form .button { justify-self: start; }
.form-status { min-height: 24px; margin: 0; color: var(--accent); font-size: 13px; }

@media (hover: hover) and (pointer: fine) {
  .portrait-wrap:hover {
    transform: translateY(-7px);
    border-color: rgba(var(--accent-rgb), .42);
    box-shadow: 0 34px 76px rgba(0,0,0,.34), 0 0 42px rgba(var(--accent-rgb), .1);
  }
  .portrait-wrap:hover .portrait-media::after { opacity: 1; transform: translateX(36%); }
  .portrait-wrap:hover img { transform: scale(1.10); filter: saturate(.92) sepia(.04) brightness(1.06); }

  .skill-detail-card:hover {
    transform: translateY(-8px);
    border-color: rgba(var(--accent-rgb), .38);
    box-shadow: 0 28px 52px -16px rgba(0,0,0,.56), 0 0 34px rgba(var(--accent-rgb), .08);
  }
  .skill-detail-card:hover::after, .timeline-detail:hover::before, .contact-panel:hover::before, .contact-panel:focus-within::before { opacity: 1; }
  .skill-detail-card:hover .skill-detail-logo { transform: translateY(-4px) rotate(-3deg) scale(1.06); background: rgba(var(--accent-rgb), .1); }
  .skill-detail-card:hover h3 { color: var(--accent); }
  /* ponytail: gauge chỉ hiện khi hover; thiết bị cảm ứng thấy cả hai (không có hover để đổi) */
  .skill-gauge { position: absolute; inset: auto 0 0; opacity: 0; pointer-events: none; }
  .skill-detail-card:hover .skill-topics { opacity: 0; }
  .skill-detail-card:hover .skill-gauge { opacity: 1; }

  .timeline-item:hover .timeline-detail {
    transform: translateX(-7px);
    border-color: rgba(var(--accent-rgb), .4);
    box-shadow: 0 24px 46px -20px rgba(0,0,0,.62), 0 0 30px rgba(var(--accent-rgb), .07);
  }
  .timeline-item:nth-child(even):hover .timeline-detail { transform: translateX(7px); }
  .timeline-item:hover .timeline-detail::after { opacity: 1; transform: translateX(42%); }
  .timeline-item:hover .timeline-detail-label b { transform: translate(3px, -3px); }
  .timeline-item:hover .timeline-meta h3 { color: var(--accent); transform: translateX(4px); }
  .timeline-item:nth-child(even):hover .timeline-meta h3 { transform: translateX(-4px); }
  .timeline-item:hover .timeline-mark { color: #fff; background: var(--accent); transform: translateX(-50%) scale(1.12) rotate(-4deg); box-shadow: 0 0 0 8px var(--bg), 0 0 28px rgba(var(--accent-rgb), .45); }
  .timeline-chip:hover { color: #fff; border-color: var(--accent); background: var(--accent); transform: translateY(-2px); }

  .project-card:hover { transform: translateY(-8px); border-color: rgba(var(--accent-rgb), .3); box-shadow: 0 30px 60px -18px rgba(0,0,0,.62), 0 0 34px rgba(var(--accent-rgb), .08); }
  .project-card:hover img { transform: scale(1.15) rotate(1deg); filter: saturate(1) contrast(1.02) brightness(1.07); }
  .project-card:hover .project-media::after { opacity: 1; transform: translateX(42%); }
  .project-card:hover .project-body h3, .project-card:hover .project-detail { color: var(--accent); }

  .contact-panel:hover, .contact-panel:focus-within { transform: translateY(-5px); border-color: rgba(var(--accent-rgb), .3); box-shadow: 0 34px 78px -22px rgba(0,0,0,.64), 0 0 40px rgba(var(--accent-rgb), .08); }
}

.portrait-wrap:active, .skill-detail-card:active, .timeline-detail:active, .project-card:active, .contact-panel:active { transform: scale(.985); }
.button:active { box-shadow: 0 8px 20px rgba(var(--accent-rgb), .18); }

.footer { position: relative; z-index: 2; padding: 70px 0 26px; color: rgba(255,255,255,.92); background: #d24d31; }
.footer .brand-terminal { border-color: rgba(255,255,255,.15); color: white; background: rgba(0,0,0,.12); }
.footer .brand-code { color: white; }
.footer-top { padding-bottom: 34px; border-bottom: 1px solid rgba(255,255,255,.14); }
.back-top { font-size: 13px; opacity: .75; }
.footer-grid { display: grid; grid-template-columns: 1.5fr .8fr 1fr; gap: 70px; padding: 44px 0; }
.footer h3 { margin: 0 0 16px; font-size: 18px; }
.footer p, .footer a { color: rgba(255,255,255,.72); }
.footer .social-row { margin-top: 18px; }
.footer .social-link { color: rgba(255,255,255,.72); background: rgba(255,255,255,.08); }
.footer-links { display: grid; grid-template-columns: 1fr 1fr; gap: 9px 20px; }
.footer-links a::before { content: '•'; margin-right: 8px; opacity: .5; }
.copyright { margin: 0; padding-top: 25px; border-top: 1px solid rgba(255,255,255,.14); text-align: center; font-size: 12px; }

.reveal { opacity: 0; transform: translateY(28px); transition: opacity .8s cubic-bezier(.16,1,.3,1), transform .8s cubic-bezier(.16,1,.3,1); }
.reveal.visible { opacity: 1; transform: translateY(0); }
.project-card.reveal:nth-child(2) { transition-delay: .08s; }
.project-card.reveal:nth-child(3) { transition-delay: .16s; }
.project-card.reveal:nth-child(5) { transition-delay: .08s; }
.project-card.reveal:nth-child(6) { transition-delay: .16s; }

/* Keep interaction transforms stronger than the completed scroll-reveal state. */
@media (hover: hover) and (pointer: fine) {
  .portrait-wrap.reveal.visible:hover { transform: translateY(-7px); }
  .project-card.reveal.visible:hover { transform: translateY(-8px); }
  .contact-panel.reveal.visible:hover, .contact-panel.reveal.visible:focus-within { transform: translateY(-5px); }
}

.portrait-wrap.reveal.visible:active,
.project-card.reveal.visible:active,
.contact-panel.reveal.visible:active { transform: scale(.985); transition-duration: .12s; }

@keyframes skill-logo-scroll { to { transform: translateX(calc(-50% - 27px)); } }
@keyframes skill-card-in { from { opacity: 0; transform: translateY(18px); } to { opacity: 1; transform: translateY(0); } }
@keyframes orbit-spin { to { transform: rotate(360deg); } }
@keyframes orbit-pulse { 0%,100% { transform: scale(1); opacity: .6; } 50% { transform: scale(1.04); opacity: 1; } }
@keyframes dot-float { 0%,100% { transform: translateY(0); } 50% { transform: translateY(-12px); } }
@keyframes tile-float { 0%,100% { transform: translateY(0) rotate(-2deg); } 50% { transform: translateY(-14px) rotate(2deg); } }

@media (max-width: 980px) {
  .nav-actions { position: fixed; top: 78px; right: 24px; left: 24px; display: none; align-items: stretch; flex-direction: column; padding: 12px; border: 1px solid var(--line-soft); border-radius: 18px; background: var(--surface); box-shadow: 0 24px 60px var(--shadow); }
  .nav-actions.open { display: flex; }
  .nav-pill { align-items: stretch; flex-direction: column; border: 0; border-radius: 12px; background: transparent; box-shadow: none; }
  .nav-link { text-align: center; }
  .theme-toggle { width: 100%; border-radius: 12px; }
  .menu-toggle { display: grid; }
  .hero-grid, .about-grid { grid-template-columns: 1fr; gap: 70px; }
  .hero { padding-top: 130px; }
  .hero-copy { text-align: center; }
  .accent-rule, .hero-intro { margin-inline: auto; }
  .hero-buttons, .social-row { justify-content: center; }
  .hero-visual { width: min(82vw, 500px); }
  .about-grid { max-width: 720px; }
  .portrait-wrap { margin: 0 auto; }
  .about-copy > .section-label { justify-content: center; }
  .about-copy { max-width: none; text-align: center; }
  .projects-grid, .skill-detail-grid { grid-template-columns: repeat(2, 1fr); }
  .timeline { max-width: 760px; }
  .timeline::before { left: 27px; }
  .timeline-item { grid-template-columns: minmax(0, 1fr); gap: 20px; padding-left: 78px; }
  .timeline-meta, .timeline-item:nth-child(even) .timeline-meta { grid-column: 1; grid-row: 1; padding: 0; text-align: left; }
  .timeline-detail, .timeline-item:nth-child(even) .timeline-detail { grid-column: 1; grid-row: 2; }
  .timeline-mark { left: 27px; }
  .contact-panel { grid-template-columns: 1fr; }
}

@media (max-width: 720px) {
  .shell { width: min(100% - 32px, 1180px); }
  .section { padding: 92px 0; }
  .hero-title { font-size: clamp(55px, 19vw, 78px); letter-spacing: -3px; }
  .hero-intro { font-size: 16px; }
  .hero-buttons { flex-direction: column; align-items: stretch; }
  .button { width: 100%; }
  .hero-visual { width: min(88vw, 430px); }
  .float-tile { width: 48px; height: 48px; font-size: 19px; }
  .hero-network { opacity: .72; mask-image: radial-gradient(ellipse at 50% 64%, black, transparent 88%); }
  .projects-grid, .skill-detail-grid { grid-template-columns: 1fr; }
  .project-card:first-child { grid-column: auto; display: block; }
  .project-card:first-child .project-media { height: 225px; min-height: 0; }
  .project-card:first-child .project-body { display: block; padding: 24px; }
  .skill-logo-marquee { margin-inline: -16px; padding-block: 20px; }
  .skill-logo-track { gap: 34px; animation-duration: 27s; }
  .skill-logo-item { flex-basis: 76px; }
  .skill-logo-item img { width: 48px; height: 48px; }
  .skill-detail-card { min-height: 0; }
  .certificate-heading { align-items: flex-start; flex-direction: column; }
  .certificate-controls { width: 100%; justify-content: flex-end; }
  .certificate-stage { height: 505px; margin-inline: -16px; }
  .certificate-stage::after { background: linear-gradient(90deg, var(--bg), transparent 7%, transparent 93%, var(--bg)); }
  .certificate-card { top: 47%; width: 240px; }
  .certificate-body h3, .certificate-body > p:not(.certificate-meta) { min-height: 0; }
  .dialog-footer { align-items: stretch; flex-direction: column; }
  .dialog-footer .button { width: 100%; }
  .timeline::before { left: 18px; }
  .timeline-item { gap: 16px; margin-bottom: 66px; padding-left: 54px; }
  .timeline-mark { left: 18px; width: 42px; height: 42px; border-width: 2px; box-shadow: 0 0 0 6px var(--bg), 0 10px 20px rgba(var(--accent-rgb), .16); font-size: 10px; }
  .timeline-meta h3 { margin-top: 13px; font-size: 28px; }
  .timeline-detail { padding: 24px 20px; }
  .timeline-points li { padding-left: 17px; font-size: 12px; }
  .timeline-chips, .timeline-item:nth-child(even) .timeline-chips { justify-content: flex-start; gap: 8px; }
  .contact-info, .contact-form { padding: 28px 22px; }
  .footer-grid { grid-template-columns: 1fr; gap: 36px; }
  .footer-top { align-items: flex-start; flex-direction: column; }
  .section-heading { margin-bottom: 48px; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation-duration: .001ms !important; animation-iteration-count: 1 !important; transition-duration: .001ms !important; }
  .reveal { opacity: 1; transform: none; }
  .skill-logo-track { animation: none !important; transform: none !important; }
}

/* Project archive and case study pages */
.projects-page { min-height: 100dvh; }
.projects-page main { position: relative; z-index: 2; }
.projects-archive-hero { padding: 170px 0 82px; }
.projects-archive-heading { max-width: 980px; margin-left: auto; margin-right: auto; }
.text-link { display: inline-flex; margin-bottom: 26px; color: var(--accent); font-size: 14px; font-weight: 600; }
.projects-archive-heading h1,
.project-case-hero h1,
.project-not-found h1 {
  max-width: 920px;
  margin: 0;
  font-family: var(--font-display);
  font-size: clamp(54px, 7vw, 96px);
  line-height: .96;
  letter-spacing: -3px;
}
.projects-archive-heading > p,
.project-case-hero > p,
.project-not-found > p {
  max-width: 760px;
  margin: 28px 0 0;
  color: var(--muted);
  font-size: clamp(17px, 2vw, 21px);
}
.project-count { margin-top: 34px; color: var(--muted); font-family: ui-monospace, SFMono-Regular, Menlo, monospace; font-size: 13px; }
.projects-archive-section { padding: 0 0 130px; }
.projects-archive-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 28px; }
.archive-project-card {
  overflow: hidden;
  border: 1px solid var(--line-soft);
  border-radius: var(--radius);
  background: rgba(12, 21, 29, .84);
  box-shadow: 0 24px 70px -38px var(--shadow);
  transition: transform .35s cubic-bezier(.16,1,.3,1), border-color .35s ease, box-shadow .35s ease;
}
body.light .archive-project-card { background: rgba(255, 253, 249, .86); }
.archive-project-card-featured { grid-column: 1 / -1; display: grid; grid-template-columns: 1.25fr .75fr; }
.archive-project-media { display: block; min-height: 330px; overflow: hidden; background: var(--surface-soft); }
.archive-project-card-featured .archive-project-media { min-height: 520px; }
.archive-project-media img { width: 100%; height: 100%; object-fit: cover; transition: transform .65s cubic-bezier(.16,1,.3,1), filter .35s ease; }
.archive-project-media.project-media-contain img { object-fit: contain; padding: 26px; }
.archive-project-body { display: flex; flex-direction: column; padding: 30px; }
.archive-project-card-featured .archive-project-body { justify-content: center; padding: 46px; }
.archive-project-meta,
.project-case-meta { display: flex; justify-content: space-between; gap: 20px; margin-bottom: 20px; color: var(--accent); font-family: ui-monospace, SFMono-Regular, Menlo, monospace; font-size: 12px; text-transform: uppercase; letter-spacing: .08em; }
.archive-project-body h2 { margin: 0; font-family: var(--font-display); font-size: clamp(28px, 3vw, 42px); line-height: 1.05; }
.archive-project-body > p { margin: 18px 0 22px; color: var(--muted); font-size: 15px; }
.archive-project-body .tag-list { margin-top: auto; }
.archive-project-actions { display: flex; align-items: center; justify-content: space-between; gap: 18px; margin-top: 24px; padding-top: 18px; border-top: 1px solid var(--line-soft); font-size: 13px; }
.archive-project-actions > a:last-child { color: var(--muted); }
.archive-project-actions > span { color: var(--muted); }

.project-case-hero { padding-top: 170px; padding-bottom: 70px; }
.project-case-hero h1 { max-width: 1050px; }
.project-case-hero .tag-list { margin-top: 28px; }
.project-case-actions { display: flex; align-items: center; flex-wrap: wrap; gap: 12px; margin-top: 30px; }
.private-project-note { color: var(--muted); font-size: 13px; }
.project-case-media { height: min(720px, 72vw); overflow: hidden; border: 1px solid var(--line-soft); border-radius: var(--radius); background: var(--surface-soft); box-shadow: 0 34px 90px -45px var(--shadow); }
.project-case-media img { width: 100%; height: 100%; object-fit: cover; }
.project-case-media.project-media-contain img { object-fit: contain; padding: clamp(20px, 5vw, 70px); }
.project-case-content { padding-top: 92px; padding-bottom: 110px; }
.project-case-content h2,
.project-next h2 { margin: 0 0 22px; font-family: var(--font-display); font-size: clamp(32px, 4vw, 48px); line-height: 1.05; }
.project-case-columns { display: grid; grid-template-columns: 1fr 1fr; gap: 72px; }
.project-case-columns p { margin: 0; color: var(--muted); font-size: 17px; }
.project-flow { margin-top: 90px; padding: 42px; border: 1px solid var(--line-soft); border-radius: var(--radius); background: rgba(var(--accent-rgb), .045); }
.project-flow-track { display: flex; align-items: center; gap: 14px; overflow-x: auto; padding: 8px 0 4px; scrollbar-width: thin; }
.project-flow-track span { flex: 0 0 auto; padding: 13px 17px; border: 1px solid rgba(var(--accent-rgb), .24); border-radius: 11px; background: var(--surface); font-size: 13px; font-weight: 600; }
.project-flow-track b { flex: 0 0 auto; color: var(--accent); font-weight: 500; }
.project-highlights { margin-top: 90px; }
.project-highlight-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
.project-highlight-grid p { margin: 0; padding: 24px; border-left: 2px solid var(--accent); color: var(--muted); background: rgba(var(--accent-rgb), .04); }
.project-next { display: flex; align-items: center; justify-content: space-between; gap: 28px; margin-bottom: 120px; padding-top: 54px; border-top: 1px solid var(--line-soft); }
.project-next h2 { margin: 0; }
.projects-footer { padding-top: 42px; }
.project-detail-loading { min-height: 100dvh; padding-top: 180px; }
.loading-line,
.loading-media { border-radius: 12px; background: linear-gradient(100deg, var(--surface) 20%, var(--surface-soft) 40%, var(--surface) 60%); background-size: 200% 100%; animation: project-shimmer 1.4s infinite linear; }
.loading-line { width: 72%; height: 24px; margin-bottom: 20px; }
.loading-line-short { width: 180px; height: 15px; }
.loading-line-title { width: 88%; height: 84px; }
.loading-media { width: 100%; height: 480px; margin-top: 60px; }
.project-not-found { min-height: 100dvh; padding-top: 190px; }
.project-not-found .button { margin-top: 32px; }
@keyframes project-shimmer { to { background-position: -200% 0; } }

@media (hover: hover) and (pointer: fine) {
  .archive-project-card:hover { transform: translateY(-7px); border-color: rgba(var(--accent-rgb), .32); box-shadow: 0 38px 80px -38px rgba(var(--accent-rgb), .2); }
  .archive-project-card:hover .archive-project-media img { transform: scale(1.045); filter: brightness(1.06); }
}

@media (max-width: 900px) {
  .archive-project-card-featured { display: block; }
  .archive-project-card-featured .archive-project-media { min-height: 380px; }
  .archive-project-card-featured .archive-project-body { padding: 30px; }
  .project-case-columns { gap: 36px; }
  .project-highlight-grid { grid-template-columns: 1fr; }
}

@media (max-width: 720px) {
  .projects-archive-hero { padding: 128px 0 58px; }
  .projects-archive-heading h1,
  .project-case-hero h1,
  .project-not-found h1 { font-size: clamp(45px, 14vw, 64px); letter-spacing: -2px; }
  .projects-archive-grid { grid-template-columns: 1fr; }
  .archive-project-card-featured { grid-column: auto; }
  .archive-project-media,
  .archive-project-card-featured .archive-project-media { min-height: 290px; }
  .archive-project-body,
  .archive-project-card-featured .archive-project-body { padding: 24px; }
  .project-case-hero { padding-top: 130px; padding-bottom: 48px; }
  .project-case-media { height: 62vw; min-height: 260px; }
  .project-case-content { padding-top: 64px; padding-bottom: 76px; }
  .project-case-columns { grid-template-columns: 1fr; gap: 48px; }
  .project-flow { margin-top: 64px; padding: 24px; }
  .project-highlights { margin-top: 64px; }
  .project-next { align-items: flex-start; flex-direction: column; margin-bottom: 80px; }
  .loading-line-title { height: 58px; }
  .loading-media { height: 300px; }
}

@media (prefers-reduced-motion: reduce) {
  .loading-line,
  .loading-media { animation: none; }
}