:root {
  --font-sans: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  --radius: 8px;
  --radius-lg: 14px;
  --shadow: 0 22px 70px rgba(0, 0, 0, .28);
  --container: 1160px;
  --transition: 180ms ease;
}

:root,
:root[data-theme="dark"] {
  --bg: #07111f;
  --bg-soft: #0b1728;
  --card: rgba(14, 28, 48, .72);
  --card-strong: rgba(18, 36, 62, .94);
  --text: #f4f8ff;
  --muted: #aab8cd;
  --subtle: #73839a;
  --line: rgba(180, 208, 255, .16);
  --accent: #46d9ff;
  --accent-2: #8d7dff;
  --accent-3: #25d0a6;
  --button-text: #04111f;
}

:root[data-theme="light"] {
  --bg: #f7fafc;
  --bg-soft: #eef4f8;
  --card: rgba(255, 255, 255, .82);
  --card-strong: rgba(255, 255, 255, .96);
  --text: #0c1726;
  --muted: #4b5870;
  --subtle: #6d7a90;
  --line: rgba(30, 60, 95, .14);
  --accent: #006fd6;
  --accent-2: #6d4aff;
  --accent-3: #008b78;
  --button-text: #fff;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  min-width: 320px;
  font: 15.5px/1.6 var(--font-sans);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  background:
    linear-gradient(120deg, rgba(70, 217, 255, .10), transparent 28rem),
    radial-gradient(circle at 80% 10%, rgba(141, 125, 255, .12), transparent 28rem),
    var(--bg);
  color: var(--text);
  transition: background-color var(--transition), color var(--transition);
}
body::before {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  opacity: .26;
  background-image:
    linear-gradient(var(--line) 1px, transparent 1px),
    linear-gradient(90deg, var(--line) 1px, transparent 1px);
  background-size: 42px 42px;
  mask-image: linear-gradient(to bottom, #000, transparent 80%);
}

.container { width: min(100% - 40px, var(--container)); margin-inline: auto; }
.narrow { width: min(100% - 40px, 920px); }
.section { padding: 58px 0; position: relative; }
.section + .section { border-top: 1px solid rgba(180, 208, 255, .06); }
.hero { min-height: 86vh; display: grid; align-items: center; padding: 96px 0 28px; }
.hero-grid { display: grid; grid-template-columns: minmax(0, 1.25fr) minmax(260px, 340px); gap: 48px; align-items: center; }

.site-header { position: fixed; inset: 0 0 auto; z-index: 300; transition: background var(--transition), border-color var(--transition), backdrop-filter var(--transition); }
.site-header.scrolled { background: rgba(7, 17, 31, .78); backdrop-filter: blur(18px); border-bottom: 1px solid var(--line); }
:root[data-theme="light"] .site-header.scrolled { background: rgba(247, 250, 252, .84); }
.top-nav { min-height: 70px; display: flex; align-items: center; justify-content: space-between; gap: 24px; }
.brand { color: var(--text); font-weight: 800; text-decoration: none; letter-spacing: 0; display: inline-flex; align-items: center; gap: 10px; min-width: 0; }
.brand-logo { width: 34px; height: 34px; flex: 0 0 auto; border-radius: 8px; box-shadow: 0 10px 24px rgba(0, 0, 0, .18); }
.brand span { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.nav-links { display: flex; align-items: center; gap: 6px; }
.nav-links a { color: var(--muted); text-decoration: none; padding: 9px 11px; border-radius: var(--radius); font-size: 13px; transition: color var(--transition), background var(--transition); }
.nav-links a:hover, .nav-links a.active { color: var(--text); background: var(--card); }
.nav-actions { display: flex; align-items: center; gap: 10px; }
.bottom-nav { display: none; }

.page-loader {
  position: fixed;
  inset: 0;
  z-index: 120;
  display: grid;
  place-items: center;
  background: var(--bg);
  transition: opacity 240ms ease, visibility 240ms ease;
}
.page-loader.is-hidden { opacity: 0; visibility: hidden; pointer-events: none; }
.loader-shell {
  width: min(420px, calc(100% - 48px));
  padding: 22px;
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  background: var(--card-strong);
  display: grid;
  grid-template-columns: 64px minmax(0, 1fr);
  gap: 18px;
  align-items: center;
  box-shadow: var(--shadow);
}
.loader-mark {
  width: 64px;
  height: 64px;
  border-radius: 16px;
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  position: relative;
  overflow: hidden;
}
.loader-mark::after,
.loader-lines span::after {
  content: "";
  position: absolute;
  inset: 0;
  transform: translateX(-100%);
  background: linear-gradient(90deg, transparent, rgba(255,255,255,.28), transparent);
  animation: shimmer 1.2s infinite;
}
.loader-lines { display: grid; gap: 10px; }
.loader-lines span {
  position: relative;
  overflow: hidden;
  display: block;
  height: 10px;
  border-radius: 999px;
  background: rgba(255, 255, 255, .08);
}
.loader-lines span:nth-child(1) { width: 82%; }
.loader-lines span:nth-child(2) { width: 62%; }
.loader-lines span:nth-child(3) { width: 74%; }
@keyframes shimmer { to { transform: translateX(100%); } }

a { color: var(--accent); }
svg { width: 18px; height: 18px; fill: none; stroke: currentColor; stroke-width: 1.9; stroke-linecap: round; stroke-linejoin: round; }
.skip-link { position: fixed; top: -60px; left: 16px; z-index: 100; background: var(--text); color: var(--bg); padding: 10px 14px; border-radius: var(--radius); }
.skip-link:focus { top: 16px; }
button, .button { font: inherit; }
.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  min-height: 42px;
  padding: 10px 16px;
  border-radius: var(--radius);
  border: 1px solid var(--line);
  text-decoration: none;
  font-weight: 750;
  transition: transform var(--transition), border-color var(--transition), background var(--transition);
}
.button:hover { transform: translateY(-2px); }
.button-primary { background: linear-gradient(135deg, var(--accent), var(--accent-2)); color: var(--button-text); border: 0; }
.button-secondary { color: var(--text); background: var(--card); }
.button-ghost { color: var(--text); background: transparent; }
.button-small { min-height: 38px; padding: 9px 14px; font-size: 14px; }
.icon-button { width: 42px; height: 42px; border-radius: var(--radius); border: 1px solid var(--line); color: var(--text); background: var(--card); display: inline-grid; place-items: center; cursor: pointer; }
.modal-open { overflow: hidden; }
.cv-modal[hidden] { display: none; }
.cv-modal {
  position: fixed;
  inset: 0;
  z-index: 500;
  display: grid;
  place-items: center;
  padding: 22px;
}
.cv-modal__backdrop {
  position: absolute;
  inset: 0;
  background: rgba(3, 10, 20, .72);
  backdrop-filter: blur(10px);
}
.cv-modal__panel {
  position: relative;
  width: min(100%, 460px);
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  background: var(--card-strong);
  box-shadow: var(--shadow);
  padding: 26px;
  animation: modalIn 180ms ease both;
}
.cv-modal__panel h3 { font-size: 22px; margin-bottom: 10px; }
.cv-modal__close {
  position: absolute;
  top: 12px;
  right: 12px;
  width: 36px;
  height: 36px;
  border-radius: 50%;
  border: 1px solid var(--line);
  color: var(--text);
  background: rgba(255, 255, 255, .04);
  cursor: pointer;
  font-size: 22px;
  line-height: 1;
}
.cv-modal__actions {
  display: flex;
  justify-content: flex-end;
  gap: 12px;
  margin-top: 22px;
}
@keyframes modalIn {
  from { opacity: 0; transform: translateY(10px) scale(.98); }
  to { opacity: 1; transform: translateY(0) scale(1); }
}

.eyebrow, .kicker, .card-meta { color: var(--accent); font-size: 11px; font-weight: 800; text-transform: uppercase; letter-spacing: 0; }
h1, h2, h3, p { margin-top: 0; }
h1 { font-size: clamp(34px, 5vw, 56px); line-height: 1.04; margin-bottom: 14px; letter-spacing: 0; }
h2 { font-size: clamp(26px, 3.1vw, 38px); line-height: 1.12; margin-bottom: 12px; letter-spacing: 0; }
h3 { font-size: 18px; margin-bottom: 8px; letter-spacing: 0; }
h4 { margin: 20px 0 8px; font-size: 14px; color: var(--text); }
p, li { color: var(--muted); line-height: 1.62; }
ul { padding-left: 20px; }

.hero-title { color: var(--text); font-size: clamp(17px, 2vw, 22px); font-weight: 750; margin-bottom: 10px; }
.hero-tagline { color: var(--accent); font-size: 15px; font-weight: 750; }
.hero-summary { max-width: 640px; font-size: 15.5px; }
.hero-actions, .social-row, .card-actions, .filter-bar { display: flex; flex-wrap: wrap; gap: 12px; align-items: center; }
.hero-actions { margin: 26px 0 20px; }
.social-link, .card-actions a, .contact-list a, .contact-list span { display: inline-flex; align-items: center; gap: 8px; color: var(--muted); text-decoration: none; }
.social-link { border: 1px solid var(--line); border-radius: var(--radius); padding: 8px 10px; background: rgba(255, 255, 255, .03); font-size: 13px; }
.social-link:hover, .card-actions a:hover { color: var(--text); border-color: var(--accent); }

.hero-visual { position: relative; width: min(100%, 340px); margin-left: auto; }
.profile-frame { width: 100%; margin-left: auto; aspect-ratio: 4 / 5; border-radius: 20px; padding: 8px; background: linear-gradient(135deg, rgba(70, 217, 255, .55), rgba(141, 125, 255, .45)); box-shadow: var(--shadow); }
.profile-image { width: 100%; height: 100%; object-fit: cover; object-position: center top; display: block; border-radius: 16px; background: var(--bg-soft); }
.signal-card { position: absolute; left: 50%; bottom: 28px; transform: translateX(-50%); width: calc(100% - 44px); padding: 13px; border-radius: var(--radius-lg); border: 1px solid var(--line); background: var(--card-strong); box-shadow: var(--shadow); }
.signal-card span { color: var(--subtle); display: block; font-size: 12px; margin-bottom: 4px; }

.stats-strip { grid-column: 1 / -1; display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 14px; margin-top: 2px; }
.stats-strip div, .card, .empty-state, .contact-form { border: 1px solid var(--line); background: var(--card); backdrop-filter: blur(18px); border-radius: var(--radius-lg); box-shadow: 0 14px 44px rgba(0, 0, 0, .14); }
.stats-strip div { padding: 18px; }
.stats-strip strong { display: block; font-size: 28px; color: var(--text); }
.stats-strip span { color: var(--muted); }

.section-heading { max-width: 760px; margin-bottom: 26px; }
.section-heading p { max-width: 720px; }
#about .section-heading { max-width: 100%; }
#about .section-heading p { max-width: 1080px; }
.about-panel { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 0; overflow: hidden; border-left: 1px solid var(--line); }
.about-panel article { padding: 4px 24px 22px; border-bottom: 1px solid var(--line); }
.about-panel article:nth-child(odd) { border-right: 1px solid var(--line); }
.about-panel strong { color: var(--text); }

.card { padding: 22px; transition: transform var(--transition), border-color var(--transition), background var(--transition); }
.card:hover { transform: translateY(-3px); border-color: rgba(70, 217, 255, .45); }
.card-grid, .skill-grid, .project-grid, .blog-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 16px; }
.project-grid { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.filter-bar { margin-bottom: 24px; }
.project-card, .blog-card { position: relative; padding: 0; overflow: visible; }
.project-card {
  opacity: 1;
  transform: translateY(0) scale(1);
  transition: opacity 170ms ease, transform 170ms cubic-bezier(.2,.8,.2,1), border-color var(--transition), background var(--transition);
}
.project-card.is-filter-leaving {
  opacity: 0;
  transform: translateY(8px) scale(.985);
  pointer-events: none;
}
.card, .certificate-item, .volunteer-item, .award-item { position: relative; }
.has-open-popover { z-index: 45; }
.project-media { position: relative; overflow: hidden; border-radius: var(--radius-lg) var(--radius-lg) 0 0; background: var(--bg-soft); }
.project-image { width: 100%; aspect-ratio: 16 / 9; object-fit: cover; display: block; background: var(--bg-soft); border-radius: var(--radius-lg) var(--radius-lg) 0 0; }
.project-image-count { position: absolute; left: 12px; top: 12px; color: #fff; background: rgba(3, 10, 20, .86); border: 1px solid rgba(255, 255, 255, .32); border-radius: 999px; padding: 6px 10px; font-size: 11px; font-weight: 800; line-height: 1; text-shadow: 0 1px 2px rgba(0, 0, 0, .6); box-shadow: 0 8px 18px rgba(0, 0, 0, .24); }
.project-gallery-controls { position: absolute; left: 50%; bottom: 10px; transform: translateX(-50%); display: flex; align-items: center; gap: 7px; padding: 6px 8px; border: 1px solid rgba(255, 255, 255, .16); border-radius: 999px; background: rgba(3, 10, 20, .68); backdrop-filter: blur(8px); }
.project-gallery-dot { width: 8px; height: 8px; min-height: 0; padding: 0; cursor: pointer; border: 0; border-radius: 50%; background: rgba(255, 255, 255, .48); }
.project-gallery-dot.active { width: 18px; border-radius: 999px; background: var(--accent); }
.project-body { padding: 22px; }
.tag-list { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 14px; }
.project-card .card-actions { margin-top: 18px; }
.blog-card .card-actions { margin-top: 16px; }
.tag-list span { color: var(--text); border: 1px solid var(--line); background: rgba(70, 217, 255, .07); border-radius: 999px; padding: 6px 9px; font-size: 12px; }
.skill-panel { padding: 0 0 18px; border-bottom: 1px solid var(--line); }
.skill-panel h3 { color: var(--text); font-size: 16px; }
.skill-panel .tag-list span { background: transparent; }
.detail-popover-wrap {
  position: relative;
  display: inline-block;
  margin-top: 14px;
}
.detail-trigger {
  cursor: pointer;
  color: var(--text);
  border: 1px solid var(--line);
  border-radius: 999px;
  background: var(--card-strong);
  padding: 7px 11px;
  min-height: 36px;
  font-size: 12px;
  font-weight: 750;
}
.detail-trigger span { color: var(--accent); margin-left: 6px; }
.detail-popover {
  position: absolute;
  left: 0;
  top: calc(100% + 8px);
  z-index: 60;
  width: min(390px, calc(100vw - 48px));
  max-height: min(360px, 65vh);
  overflow: auto;
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
  transform: translateY(-8px) scale(.98);
  transform-origin: top left;
  padding: 16px;
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  background: var(--card-strong);
  box-shadow: var(--shadow);
  transition: opacity 220ms ease, transform 220ms cubic-bezier(.2,.8,.2,1), visibility 220ms ease;
  scrollbar-width: thin;
  scrollbar-color: var(--accent) rgba(255, 255, 255, .08);
}
.detail-popover::-webkit-scrollbar { width: 8px; }
.detail-popover::-webkit-scrollbar-track {
  background: rgba(255, 255, 255, .08);
  border-radius: 999px;
}
.detail-popover::-webkit-scrollbar-thumb {
  background: linear-gradient(var(--accent), var(--accent-2));
  border-radius: 999px;
  border: 2px solid var(--card-strong);
}
.detail-popover-wrap.is-open { z-index: 65; }
.detail-popover-wrap.is-open .detail-popover {
  opacity: 1;
  visibility: visible;
  pointer-events: auto;
  transform: translateY(0) scale(1);
}
.detail-popover .tag-list { margin-top: 12px; }
.detail-popover p:last-child,
.detail-popover ul:last-child { margin-bottom: 0; }
.compact-list { display: grid; border-top: 1px solid var(--line); }
.compact-row {
  display: grid;
  grid-template-columns: 58px minmax(0, 1fr);
  gap: 16px;
  padding: 18px 0;
  border-bottom: 1px solid var(--line);
}
.compact-row .badge-image { width: 58px; height: 58px; }
.certificate-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0 28px;
  border-top: 1px solid var(--line);
}
.certificate-item {
  position: relative;
  padding: 20px 0;
  border-bottom: 1px solid var(--line);
}
.certificate-actions {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
  margin-top: 16px;
}
.certificate-actions .detail-popover-wrap { margin-top: 0; }
.credential-action {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 7px;
  width: fit-content;
  min-height: 36px;
  margin-top: 0;
  color: var(--text);
  border: 1px solid var(--line);
  border-radius: 999px;
  padding: 7px 11px;
  font-size: 12px;
  font-weight: 750;
  text-decoration: none;
}
.credential-action:hover { border-color: var(--accent); color: var(--accent); }
.publication-list { display: grid; border-top: 1px solid var(--line); }
.publication-item {
  padding: 22px 0;
  border-bottom: 1px solid var(--line);
  max-width: 980px;
}
.publication-actions {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-top: 16px;
}
.volunteer-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 16px;
}
.volunteer-item {
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  background: var(--card);
  padding: 18px;
}
.membership-id {
  font-size: 13px;
  color: var(--muted);
}
.membership-id strong { color: var(--text); }
.volunteer-actions {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 14px;
}
.award-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 16px;
}
.award-item {
  padding: 20px;
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  background: var(--card);
}
.award-actions {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 14px;
}
.interest-cloud {
  display: flex;
  flex-wrap: wrap;
  gap: 9px;
  max-width: 900px;
}
.interest-cloud span {
  color: var(--text);
  border: 1px solid var(--line);
  background: rgba(255, 255, 255, .025);
  border-radius: 999px;
  padding: 8px 11px;
  font-size: 13px;
}

.timeline { position: relative; display: grid; gap: 20px; }
.timeline::before { content: ""; position: absolute; left: 10px; top: 0; bottom: 0; width: 1px; background: var(--line); }
.timeline-item { display: grid; grid-template-columns: 22px minmax(0, 1fr); gap: 18px; }
.timeline-marker { width: 21px; height: 21px; border: 5px solid var(--bg); background: var(--accent); border-radius: 50%; z-index: 1; margin-top: 22px; }
.company { color: var(--text); font-weight: 750; }
.experience-head {
  display: flex;
  justify-content: space-between;
  gap: 24px;
  align-items: flex-start;
  margin-bottom: 14px;
}
.experience-head h3,
.experience-head .company { margin-bottom: 6px; }
.experience-date {
  min-width: 170px;
  text-align: right;
}
.experience-date strong {
  display: block;
  color: var(--text);
  font-size: 14px;
}
.experience-date span {
  display: block;
  color: var(--accent);
  font-size: 12px;
  font-weight: 800;
  margin-top: 4px;
}

.filter-chip { cursor: pointer; color: var(--muted); border: 1px solid var(--line); background: var(--card); border-radius: 999px; padding: 9px 13px; }
.filter-chip.active { color: var(--button-text); background: linear-gradient(135deg, var(--accent), var(--accent-2)); border-color: transparent; }
.is-hidden { display: none !important; }
.media-card { display: grid; grid-template-columns: 76px minmax(0, 1fr); gap: 18px; align-items: start; }
.badge-image, .session-image, .avatar-image { width: 76px; height: 76px; border-radius: var(--radius); object-fit: cover; background: var(--bg-soft); }
.avatar-image { border-radius: 50%; }
blockquote { margin: 0 0 18px; color: var(--muted); line-height: 1.62; }
.testimonial-copy-wrap { max-width: 820px; }
.testimonial-copy {
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
  margin-bottom: 0;
}
.testimonial-copy.is-expanded {
  display: block;
  -webkit-line-clamp: unset;
  overflow: visible;
}
.testimonial-more {
  cursor: pointer;
  display: inline;
  margin-top: 6px;
  padding: 0;
  color: var(--accent);
  background: transparent;
  border: 0;
  font-size: 13px;
  font-weight: 800;
}
.testimonial-more[hidden] { display: none; }
.testimonial-list {
  display: grid;
  border-top: 1px solid var(--line);
}
.testimonial-item {
  display: grid;
  grid-template-columns: 76px minmax(0, 1fr);
  gap: 24px;
  align-items: flex-start;
  padding: 22px 0;
  border-bottom: 1px solid var(--line);
}

.credential-list, .language-list { display: grid; gap: 0; border-top: 1px solid var(--line); }
.credential-item, .language-item { padding: 22px 0; border-bottom: 1px solid var(--line); }
.language-item { display: flex; justify-content: space-between; gap: 24px; align-items: flex-start; }
.language-item strong { color: var(--text); white-space: nowrap; font-size: 14px; }

.contact-grid { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); gap: 40px; align-items: start; }
.contact-list { display: grid; gap: 14px; margin-bottom: 22px; }
.contact-form { padding: 22px; display: grid; gap: 16px; max-width: 560px; width: 100%; }
label { display: grid; gap: 8px; color: var(--text); font-weight: 750; }
input, textarea { width: 100%; color: var(--text); background: rgba(255, 255, 255, .04); border: 1px solid var(--line); border-radius: var(--radius); padding: 12px 13px; outline: none; }
input:focus, textarea:focus, .button:focus-visible, .icon-button:focus-visible, a:focus-visible, button:focus-visible { outline: 3px solid rgba(70, 217, 255, .35); outline-offset: 3px; }
.form-status {
  min-height: 20px;
  margin: -4px 0 0;
  color: var(--muted);
  font-size: 13px;
}
.form-status[data-state="success"] { color: #20b982; }
.form-status[data-state="error"] { color: #f97373; }
.form-status[data-state="loading"],
.form-status[data-state="info"] { color: var(--accent); }

.back-to-top { position: fixed; right: 18px; bottom: 18px; z-index: 50; width: 46px; height: 46px; display: grid; place-items: center; border-radius: 50%; border: 1px solid var(--line); background: var(--card-strong); color: var(--text); opacity: 0; pointer-events: none; transition: opacity var(--transition), transform var(--transition); }
.floating-theme-toggle {
  position: fixed;
  right: 18px;
  bottom: 150px;
  z-index: 50;
  width: 46px;
  height: 46px;
  display: none;
  place-items: center;
  border-radius: 50%;
  border: 1px solid var(--line);
  background: var(--card-strong);
  color: var(--text);
  box-shadow: var(--shadow);
}
.back-to-top.visible { opacity: 1; pointer-events: auto; }
.reveal { opacity: 0; transform: translateY(18px); transition: opacity 520ms ease, transform 520ms ease; }
.reveal.is-visible { opacity: 1; transform: translateY(0); }
.empty-state { padding: 32px; text-align: center; }

.site-footer { padding: 44px 0 36px; border-top: 1px solid var(--line); background: rgba(0, 0, 0, .08); }
.footer-grid { display: flex; align-items: center; justify-content: space-between; gap: 24px; flex-wrap: wrap; color: var(--muted); }

@media (max-width: 980px) {
  .hero-grid, .contact-grid { grid-template-columns: 1fr; }
  .hero { padding-top: 82px; }
  .hero-visual { max-width: 420px; margin-inline: auto; }
  .card-grid, .skill-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .project-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .blog-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .volunteer-grid, .award-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .stats-strip { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}

@media (max-width: 760px) {
  body { padding-bottom: calc(84px + env(safe-area-inset-bottom)); }
  .site-header { display: none; }
  .section { padding: 44px 0; }
  .hero { min-height: auto; padding-top: 30px; padding-bottom: 24px; }
  .hero-grid { gap: 28px; }
  h1 { font-size: clamp(31px, 9.5vw, 44px); }
  .hero-title { font-size: 18px; }
  .profile-frame { width: min(66vw, 250px); margin-inline: auto; border-radius: 20px; }
  .signal-card { left: 50%; transform: translateX(-50%); bottom: -18px; width: min(310px, 92%); }
  .stats-strip, .about-panel, .card-grid, .skill-grid { grid-template-columns: 1fr; }
  .certificate-grid { grid-template-columns: 1fr; }
  .project-grid, .volunteer-grid, .award-grid, .blog-grid {
    display: flex;
    align-items: flex-start;
    overflow-x: auto;
    overflow-y: visible;
    gap: 14px;
    padding: 2px 2px 12px;
    margin-inline: -2px;
    scroll-snap-type: x mandatory;
    scrollbar-width: thin;
    scrollbar-color: var(--accent) rgba(255,255,255,.08);
  }
  .project-grid > *,
  .volunteer-grid > *,
  .award-grid > *,
  .blog-grid > * {
    flex: 0 0 min(84%, 320px);
    scroll-snap-align: start;
  }
  .project-card.has-open-popover,
  .volunteer-item.has-open-popover,
  .award-item.has-open-popover,
  .blog-card.has-open-popover { z-index: 45; }
  .detail-popover-wrap.is-mobile-fixed-popover .detail-popover {
    position: fixed;
    top: auto;
    max-height: min(300px, 48vh);
  }
  .project-grid::-webkit-scrollbar,
  .volunteer-grid::-webkit-scrollbar,
  .award-grid::-webkit-scrollbar,
  .blog-grid::-webkit-scrollbar { height: 7px; }
  .project-grid::-webkit-scrollbar-track,
  .volunteer-grid::-webkit-scrollbar-track,
  .award-grid::-webkit-scrollbar-track,
  .blog-grid::-webkit-scrollbar-track {
    background: rgba(255,255,255,.08);
    border-radius: 999px;
  }
  .project-grid::-webkit-scrollbar-thumb,
  .volunteer-grid::-webkit-scrollbar-thumb,
  .award-grid::-webkit-scrollbar-thumb,
  .blog-grid::-webkit-scrollbar-thumb {
    background: linear-gradient(90deg, var(--accent), var(--accent-2));
    border-radius: 999px;
  }
  .about-panel { border-left: 0; }
  .about-panel article, .about-panel article:nth-child(odd) { border-right: 0; padding-inline: 0; }
  .language-item { display: grid; gap: 4px; }
  .testimonial-item { display: grid; gap: 14px; }
  .experience-head { display: grid; gap: 10px; }
  .experience-date { min-width: 0; text-align: left; }
  .media-card { grid-template-columns: 64px minmax(0, 1fr); }
  .badge-image, .session-image, .avatar-image { width: 64px; height: 64px; }
  .compact-row { grid-template-columns: 48px minmax(0, 1fr); gap: 14px; }
  .compact-row .badge-image { width: 48px; height: 48px; }
  .bottom-nav { position: fixed; left: 10px; right: 10px; bottom: max(10px, env(safe-area-inset-bottom)); z-index: 70; display: grid; grid-template-columns: repeat(5, minmax(0, 1fr)); gap: 4px; min-height: 68px; padding: 8px; border: 1px solid var(--line); border-radius: 22px; background: var(--card-strong); backdrop-filter: blur(20px); box-shadow: var(--shadow); }
  .bottom-nav a { min-width: 0; min-height: 52px; display: grid; place-items: center; gap: 2px; color: var(--subtle); text-decoration: none; border-radius: 16px; font-size: 11px; font-weight: 750; }
  .bottom-nav a.active { color: var(--text); background: rgba(70, 217, 255, .13); }
  .bottom-nav svg { width: 20px; height: 20px; }
  .back-to-top { bottom: 96px; }
  .floating-theme-toggle { display: grid; bottom: 150px; }
}

@media (max-width: 460px) {
  .container, .narrow { width: min(100% - 24px, var(--container)); }
  .hero-actions .button { width: 100%; }
  .stats-strip strong { font-size: 26px; }
  .card, .contact-form, .project-body { padding: 18px; }
  .footer-grid { display: grid; }
}