/* =========================================================
   DESIGN TOKENS
   ========================================================= */
:root {
  --bg-primary: #05070a;
  --bg-secondary: #0a0f16;
  --bg-card: rgba(15, 23, 35, 0.55);
  --bg-card-hover: rgba(20, 28, 44, 0.7);
  --blue-dark: #0b3b82;
  --blue-primary: #1261c9;
  --blue-light: #3b82f6;
  --blue-glow: rgba(59, 130, 246, 0.35);
  --text-primary: #ffffff;
  --text-secondary: #a8b0bd;
  --text-muted: #6b7382;
  --border: rgba(255, 255, 255, 0.10);
  --border-strong: rgba(255, 255, 255, 0.18);
  --success: #22c55e;
  --error: #ef4444;

  --font-display: 'Space Grotesk', system-ui, -apple-system, sans-serif;
  --font-body: 'Inter', system-ui, -apple-system, sans-serif;
  --font-mono: 'JetBrains Mono', ui-monospace, 'SFMono-Regular', Menlo, monospace;

  --radius-sm: 8px;
  --radius-md: 14px;
  --radius-lg: 20px;
  --radius-xl: 28px;

  --shadow-sm: 0 4px 16px rgba(0, 0, 0, 0.25);
  --shadow-md: 0 12px 36px rgba(0, 0, 0, 0.30);
  --shadow-lg: 0 20px 60px rgba(0, 0, 0, 0.40);
  --shadow-glow: 0 0 60px rgba(59, 130, 246, 0.12);

  --container: 1240px;
  --ease: cubic-bezier(0.16, 1, 0.3, 1);
}

/* =========================================================
   RESET & BASE
   ========================================================= */
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  background: var(--bg-primary);
  color: var(--text-primary);
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.6;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}
img, svg { display: block; max-width: 100%; }
button { font: inherit; cursor: pointer; border: none; background: none; color: inherit; }
a { color: inherit; text-decoration: none; }
ul { list-style: none; padding: 0; margin: 0; }
h1, h2, h3, h4, h5, h6 { font-family: var(--font-display); font-weight: 600; line-height: 1.15; margin: 0; }

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

*:focus { outline: none; }
*:focus-visible {
  outline: 2px solid var(--blue-light);
  outline-offset: 3px;
  border-radius: 4px;
}

/* =========================================================
   AMBIENT BACKGROUND
   ========================================================= */
body::before {
  content: '';
  position: fixed;
  inset: 0;
  background-image:
    linear-gradient(var(--border) 1px, transparent 1px),
    linear-gradient(90deg, var(--border) 1px, transparent 1px);
  background-size: 64px 64px;
  mask-image: radial-gradient(ellipse at 50% 30%, rgba(0,0,0,0.6), transparent 70%);
  -webkit-mask-image: radial-gradient(ellipse at 50% 30%, rgba(0,0,0,0.6), transparent 70%);
  opacity: 0.25;
  pointer-events: none;
  z-index: 0;
}
body::after {
  content: '';
  position: fixed;
  inset: 0;
  background:
    radial-gradient(800px 600px at 10% -10%, rgba(18, 97, 201, 0.18), transparent 60%),
    radial-gradient(900px 700px at 90% 20%, rgba(59, 130, 246, 0.08), transparent 65%),
    radial-gradient(700px 500px at 50% 110%, rgba(11, 59, 130, 0.15), transparent 70%);
  pointer-events: none;
  z-index: 0;
}

main, header, footer, nav { position: relative; z-index: 1; }

/* =========================================================
   LIQUID GLASS SYSTEM
   ========================================================= */
.glass {
  background: var(--bg-card);
  backdrop-filter: blur(20px) saturate(140%);
  -webkit-backdrop-filter: blur(20px) saturate(140%);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-md);
  position: relative;
  overflow: hidden;
}
.glass::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(255,255,255,0.05) 0%, transparent 40%);
  pointer-events: none;
}
.glass-hover {
  transition: background 0.35s var(--ease), border-color 0.35s var(--ease),
              transform 0.35s var(--ease), box-shadow 0.35s var(--ease);
}
.glass-hover:hover {
  background: var(--bg-card-hover);
  border-color: var(--border-strong);
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg), var(--shadow-glow);
}

/* =========================================================
   LAYOUT
   ========================================================= */
.container {
  width: 100%;
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 24px;
}
section {
  padding: 76px 0;
  position: relative;
}
.section-head {
  margin-bottom: 56px;
  text-align: center;
}
.section-label {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--blue-light);
  padding: 8px 14px;
  border: 1px solid var(--border);
  border-radius: 999px;
  background: rgba(18, 97, 201, 0.08);
  margin-bottom: 18px;
}
.section-label::before {
  content: '';
  width: 6px; height: 6px;
  background: var(--blue-light);
  border-radius: 50%;
  box-shadow: 0 0 10px var(--blue-light);
}
.section-title {
  font-size: clamp(2rem, 4vw, 3rem);
  font-weight: 700;
  letter-spacing: -0.02em;
  margin-bottom: 14px;
}
.section-title .accent { color: var(--blue-light); }
.section-subtitle {
  color: var(--text-secondary);
  max-width: 640px;
  margin: 0 auto;
  font-size: 1.05rem;
}
.page-title {
  font-size: clamp(2.2rem, 5vw, 3.5rem);
  font-weight: 700;
  letter-spacing: -0.02em;
}
.page-title .accent { color: var(--blue-light); }

/* =========================================================
   NAVIGATION
   ========================================================= */
.nav {
  position: fixed;
  top: 16px;
  left: 50%;
  transform: translateX(-50%);
  width: calc(100% - 32px);
  max-width: 1180px;
  z-index: 1000;
  transition: all 0.4s var(--ease);
}
.nav-inner {
  display: grid;
  grid-template-columns: minmax(180px, 1fr) auto minmax(180px, 1fr);
  align-items: center;
  padding: 12px 20px;
  background: rgba(5, 7, 10, 0.6);
  backdrop-filter: blur(24px) saturate(160%);
  -webkit-backdrop-filter: blur(24px) saturate(160%);
  border: 1px solid var(--border);
  border-radius: 999px;
  box-shadow: var(--shadow-md);
}
.nav.scrolled .nav-inner { background: rgba(5, 7, 10, 0.85); }
.nav-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.05rem;
  letter-spacing: -0.01em;
}
.nav-logo-mark {
  overflow: hidden;
  flex: 0 0 32px;
  width: 32px; height: 32px;
  display: grid;
  place-items: center;
  background: linear-gradient(135deg, var(--blue-dark), var(--blue-primary));
  border-radius: 8px;
  color: #fff;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 0.9rem;
  box-shadow: 0 0 20px rgba(59, 130, 246, 0.35);
}
.nav-links {
  display: flex;
  gap: 4px;
  align-items: center;
  justify-self: center;
}
.nav-link {
  position: relative;
  padding: 8px 14px;
  font-size: 0.9rem;
  color: var(--text-secondary);
  border-radius: 999px;
  transition: color 0.25s var(--ease), background 0.25s var(--ease);
}
.nav-link:hover { color: var(--text-primary); }
.nav-link.active {
  color: var(--text-primary);
  background: rgba(59, 130, 246, 0.12);
}
.nav-link.active::after {
  content: '';
  position: absolute;
  left: 50%;
  bottom: 2px;
  transform: translateX(-50%);
  width: 4px; height: 4px;
  background: var(--blue-light);
  border-radius: 50%;
  box-shadow: 0 0 8px var(--blue-light);
}
.nav-cta {
  padding: 9px 18px;
  background: linear-gradient(135deg, var(--blue-primary), var(--blue-light));
  border-radius: 999px;
  font-size: 0.88rem;
  font-weight: 500;
  color: #fff;
  transition: transform 0.25s var(--ease), box-shadow 0.25s var(--ease);
}
.nav-cta:hover {
  transform: translateY(-1px);
  box-shadow: 0 10px 30px rgba(59, 130, 246, 0.35);
}
.nav-burger {
  display: none;
  width: 40px; height: 40px;
  border-radius: 50%;
  background: rgba(255,255,255,0.05);
  border: 1px solid var(--border);
  position: relative;
}
.nav-burger span {
  position: absolute;
  left: 12px;
  width: 16px;
  height: 2px;
  background: var(--text-primary);
  border-radius: 2px;
  transition: all 0.3s var(--ease);
}
.nav-burger span:nth-child(1) { top: 14px; }
.nav-burger span:nth-child(2) { top: 19px; }
.nav-burger span:nth-child(3) { top: 24px; }
.nav-burger.open span:nth-child(1) { top: 19px; transform: rotate(45deg); }
.nav-burger.open span:nth-child(2) { opacity: 0; }
.nav-burger.open span:nth-child(3) { top: 19px; transform: rotate(-45deg); }

/* Mobile drawer */
.mobile-drawer {
  position: fixed;
  top: 0; right: 0;
  width: min(380px, 100%);
  height: 100vh;
  background: rgba(5, 7, 10, 0.95);
  backdrop-filter: blur(30px) saturate(160%);
  -webkit-backdrop-filter: blur(30px) saturate(160%);
  border-left: 1px solid var(--border);
  padding: 80px 32px 32px;
  transform: translateX(100%);
  transition: transform 0.4s var(--ease);
  z-index: 999;
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.mobile-drawer.open { transform: translateX(0); }
.mobile-drawer .nav-link {
  font-size: 1.15rem;
  padding: 14px 16px;
  border-radius: var(--radius-md);
  width: 100%;
  text-align: left;
}
.drawer-close {
  position: absolute;
  top: 20px; right: 20px;
  width: 40px; height: 40px;
  border-radius: 50%;
  background: rgba(255,255,255,0.05);
  border: 1px solid var(--border);
  display: grid; place-items: center;
  color: var(--text-primary);
  font-size: 1.4rem;
}
.drawer-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.6);
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.3s var(--ease), visibility 0.3s var(--ease);
  z-index: 998;
}
.drawer-overlay.open { opacity: 1; visibility: visible; }

/* =========================================================
   BUTTONS
   ========================================================= */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 14px 26px;
  border-radius: 999px;
  font-size: 0.95rem;
  font-weight: 500;
  transition: all 0.3s var(--ease);
  border: 1px solid transparent;
}
.btn-primary {
  background: linear-gradient(135deg, var(--blue-primary), var(--blue-light));
  color: #fff;
  box-shadow: 0 10px 30px rgba(18, 97, 201, 0.35);
}
.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 14px 40px rgba(59, 130, 246, 0.45);
}
.btn-ghost {
  background: rgba(255,255,255,0.04);
  border-color: var(--border);
  color: var(--text-primary);
}
.btn-ghost:hover {
  background: rgba(255,255,255,0.08);
  border-color: var(--border-strong);
}
.btn-icon {
  width: 18px; height: 18px;
  transition: transform 0.3s var(--ease);
}
.btn:hover .btn-icon { transform: translateX(3px); }

/* =========================================================
   SOCIAL
   ========================================================= */
.hero-social {
  display: flex;
  gap: 10px;
  align-items: center;
}
.hero-social span {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--text-muted);
  margin-right: 8px;
}
.social-btn {
  width: 40px; height: 40px;
  display: grid; place-items: center;
  border: 1px solid var(--border);
  border-radius: 10px;
  color: var(--text-secondary);
  transition: all 0.25s var(--ease);
  background: rgba(255,255,255,0.02);
}
.social-btn:hover {
  color: var(--text-primary);
  border-color: var(--blue-light);
  background: rgba(59, 130, 246, 0.08);
  transform: translateY(-2px);
}

/* =========================================================
   PROJECT CARD SHARED
   ========================================================= */
.project-num {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--blue-light);
  padding: 4px 10px;
  border: 1px solid var(--border);
  border-radius: 6px;
  background: rgba(18, 97, 201, 0.06);
}
.project-cat {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--text-muted);
}
.tag {
  font-family: var(--font-mono);
  font-size: 11px;
  padding: 5px 10px;
  border-radius: 6px;
  background: rgba(255,255,255,0.04);
  border: 1px solid var(--border);
  color: var(--text-secondary);
}
.project-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-bottom: 24px;
}
.project-link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 10px 18px;
  border-radius: 999px;
  font-size: 0.88rem;
  font-weight: 500;
  transition: all 0.25s var(--ease);
}
.project-link.live {
  background: linear-gradient(135deg, var(--blue-primary), var(--blue-light));
  color: #fff;
}
.project-link.live:hover { box-shadow: 0 10px 24px rgba(59, 130, 246, 0.35); }
.project-link.code {
  border: 1px solid var(--border);
  color: var(--text-primary);
}
.project-link.code:hover {
  border-color: var(--border-strong);
  background: rgba(255,255,255,0.05);
}
.project-link.disabled {
  opacity: 0.5;
  pointer-events: none;
}
.project-link svg { width: 16px; height: 16px; }

/* =========================================================
   MODAL
   ========================================================= */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.75);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.3s var(--ease), visibility 0.3s var(--ease);
  z-index: 1100;
  padding: 40px 20px;
  overflow-y: auto;
  display: flex;
  justify-content: center;
}
.modal-overlay.open { opacity: 1; visibility: visible; }
.modal {
  max-width: 780px;
  width: 100%;
  border-radius: var(--radius-xl);
  padding: 40px;
  transform: scale(0.95);
  transition: transform 0.4s var(--ease);
  max-height: 90vh;
  overflow-y: auto;
}
.modal-overlay.open .modal { transform: scale(1); }
.modal-close {
  position: absolute;
  top: 16px; right: 16px;
  width: 38px; height: 38px;
  border-radius: 50%;
  background: rgba(255,255,255,0.05);
  border: 1px solid var(--border);
  display: grid; place-items: center;
  color: var(--text-primary);
  font-size: 1.2rem;
  transition: all 0.25s var(--ease);
}
.modal-close:hover {
  background: rgba(239, 68, 68, 0.1);
  border-color: var(--error);
}
.modal h2 {
  font-size: 1.8rem;
  margin-bottom: 6px;
  letter-spacing: -0.02em;
}
.modal-sub {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--blue-light);
  letter-spacing: 0.15em;
  text-transform: uppercase;
  margin-bottom: 24px;
}
.modal-section { margin-bottom: 24px; }
.modal-section h4 {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--blue-light);
  margin-bottom: 10px;
  display: flex;
  align-items: center;
  gap: 10px;
}
.modal-section h4::before {
  content: '';
  width: 4px; height: 4px;
  background: var(--blue-light);
  border-radius: 50%;
}
.modal-section p {
  color: var(--text-secondary);
  line-height: 1.7;
  font-size: 0.95rem;
  margin: 0;
}
.modal-section ul { padding-left: 0; margin: 0; }
.modal-section li {
  color: var(--text-secondary);
  font-size: 0.95rem;
  padding: 6px 0;
  padding-left: 18px;
  position: relative;
  line-height: 1.6;
}
.modal-section li::before {
  content: '▸';
  position: absolute;
  left: 0;
  color: var(--blue-light);
}
.modal-actions {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
  margin-top: 28px;
  padding-top: 24px;
  border-top: 1px solid var(--border);
}

/* =========================================================
   CTA SECTION
   ========================================================= */
.cta-section { padding: 60px 0; }
.cta-card {
  text-align: center;
  padding: 60px 40px;
}
.cta-card h2 {
  font-size: clamp(1.8rem, 3.5vw, 2.5rem);
  margin-bottom: 12px;
  letter-spacing: -0.02em;
}
.cta-card p {
  color: var(--text-secondary);
  margin-bottom: 28px;
  font-size: 1.05rem;
}

/* =========================================================
   FOOTER
   ========================================================= */
.footer {
  padding: 48px 0 26px;
  border-top: 1px solid var(--border);
  margin-top: 40px;
}
.footer-top {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  flex-wrap: wrap;
  gap: 30px;
  margin-bottom: 40px;
}
.footer-brand p {
  color: var(--text-secondary);
  font-size: 0.9rem;
  margin-top: 6px;
  font-family: var(--font-mono);
  letter-spacing: 0.05em;
}
.footer-nav {
  display: flex;
  gap: 28px;
  flex-wrap: wrap;
}
.footer-nav a {
  color: var(--text-secondary);
  font-size: 0.9rem;
  transition: color 0.25s var(--ease);
}
.footer-nav a:hover { color: var(--blue-light); }
.footer-bottom {
  padding-top: 24px;
  border-top: 1px solid var(--border);
  text-align: center;
  color: var(--text-muted);
  font-size: 0.85rem;
  font-family: var(--font-mono);
  letter-spacing: 0.05em;
}

/* =========================================================
   PAGE HERO (for inner pages)
   ========================================================= */
.page-hero {
  padding: 132px 0 44px;
  text-align: center;
}

/* =========================================================
   SCROLL REVEAL
   ========================================================= */
.reveal {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.8s var(--ease), transform 0.8s var(--ease);
}
.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}

/* =========================================================
   RESPONSIVE
   ========================================================= */
@media (max-width: 980px) {
  .contact-grid { grid-template-columns: 1fr; }
}

@media (max-width: 768px) {
  section { padding: 62px 0; }
  .nav-links { display: none; }
  .nav-cta { display: none; }
  .nav-burger { display: grid; place-items: center; }
  .page-hero { padding: 130px 0 40px; }
  .modal { padding: 28px 22px; }
  .modal h2 { font-size: 1.4rem; }
}

@media (max-width: 520px) {
  .container { padding: 0 16px; }
  .btn { padding: 12px 22px; font-size: 0.9rem; }
}



/* =========================================================
   THEME SWITCH + PAGE TRANSITIONS
   ========================================================= */
.theme-toggle {
  justify-self: end;
  min-width: 104px;
  min-height: 40px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 8px 13px;
  border: 1px solid var(--border);
  border-radius: 999px;
  background: rgba(255,255,255,.045);
  color: var(--text-primary);
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .08em;
  transition: background .3s var(--ease), border-color .3s var(--ease), transform .25s var(--ease), color .3s var(--ease);
}
.theme-toggle:hover { background: rgba(59,130,246,.10); border-color: var(--blue-primary); transform: translateY(-1px); }
.theme-toggle-icon { width: 18px; height: 18px; display: grid; place-items: center; }
.theme-icon { width: 17px; height: 17px; grid-area: 1 / 1; }
.theme-icon-moon { display: none; }
html[data-theme="light"] .theme-icon-sun { display: none; }
html[data-theme="light"] .theme-icon-moon { display: block; }

html[data-theme="light"] {
  --bg-primary: #eef4fb;
  --bg-secondary: #e2eaf4;
  --bg-card: rgba(255,255,255,.60);
  --bg-card-hover: rgba(255,255,255,.82);
  --text-primary: #08111f;
  --text-secondary: #4b5b70;
  --text-muted: #718096;
  --border: rgba(8,17,31,.12);
  --border-strong: rgba(8,17,31,.20);
  --shadow-sm: 0 4px 16px rgba(22,45,75,.10);
  --shadow-md: 0 12px 36px rgba(22,45,75,.12);
  --shadow-lg: 0 20px 60px rgba(22,45,75,.16);
  --shadow-glow: 0 0 60px rgba(59,130,246,.15);
  color-scheme: light;
}
html[data-theme="light"] body::before { opacity: .18; }
html[data-theme="light"] body::after {
  background:
    radial-gradient(800px 600px at 10% -10%, rgba(18,97,201,.12), transparent 60%),
    radial-gradient(900px 700px at 90% 20%, rgba(59,130,246,.10), transparent 65%),
    radial-gradient(700px 500px at 50% 110%, rgba(11,59,130,.08), transparent 70%);
}
html[data-theme="light"] .nav-inner { background: rgba(255,255,255,.70); }
html[data-theme="light"] .nav.scrolled .nav-inner { background: rgba(255,255,255,.88); }
html[data-theme="light"] .mobile-drawer { background: rgba(245,249,255,.96); }
html[data-theme="light"] .form-input,
html[data-theme="light"] .form-textarea { background: rgba(255,255,255,.70); }
html[data-theme="light"] .glass { background: linear-gradient(145deg, rgba(255,255,255,.72), rgba(225,235,247,.62)); }

.page-transition {
  position: fixed;
  inset: 0;
  z-index: 5000;
  pointer-events: none;
  opacity: 0;
  background: radial-gradient(circle at 50% 50%, rgba(59,130,246,.18), transparent 52%), var(--bg-primary);
  transition: opacity .24s ease;
}
.page-transition.is-active { opacity: 1; }
@media (max-width: 768px) {
  .nav-inner { display: flex; justify-content: space-between; }
  .nav-links { display: none; }
  .theme-toggle { margin-left: auto; margin-right: 8px; }
}

/* =========================================================
   REDUCED MOTION
   ========================================================= */
@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; }
}
/* Image-based identity mark */
.nav-logo-mark img { width: 100%; height: 100%; object-fit: cover; border-radius: inherit; }

/* Stronger glass fallback + rendering containment */
.glass { background: linear-gradient(145deg, rgba(255,255,255,0.075), rgba(15,23,35,0.58)); background-color: rgba(15,23,35,0.62); isolation: isolate; }
@supports not ((backdrop-filter: blur(1px))) { .glass { background: rgba(15,23,35,0.94); } }

.footer-columns { display: flex; gap: 56px; flex-wrap: wrap; }
.footer-column h2 { font-family: var(--font-mono); font-size: 11px; letter-spacing: .18em; text-transform: uppercase; color: var(--text-primary); margin: 0 0 14px; }
.footer-column .footer-nav { flex-direction: column; gap: 8px; }

@media (max-width: 768px) {
  .footer-columns { width: 100%; gap: 32px; }
  .footer-column { min-width: 140px; }
}
@media (max-width: 480px) {
  .nav { width: calc(100% - 20px); top: 10px; }
  .nav-inner { padding: 10px 14px; }
  .nav-logo { font-size: .95rem; }
  .mobile-drawer { padding-left: 20px; padding-right: 20px; }
  .footer-columns { gap: 28px; }
}

/* Footer social links */
.footer-socials {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
  margin-top: 14px;
}
.footer-socials a {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 34px;
  padding: 7px 12px;
  border: 1px solid var(--border);
  border-radius: 999px;
  color: var(--text-secondary);
  background: rgba(255,255,255,0.025);
  font-family: var(--font-mono);
  font-size: 11px;
  transition: color .25s var(--ease), border-color .25s var(--ease), background .25s var(--ease), transform .25s var(--ease);
}
.footer-socials a:hover {
  color: var(--text-primary);
  border-color: var(--blue-light);
  background: rgba(59,130,246,0.08);
  transform: translateY(-1px);
}
@media (max-width: 520px) {
  .footer-socials { gap: 8px; }
  .footer-socials a { padding: 7px 10px; }
}

/* =========================================================
   THEME-MATCHED SCROLLBAR
   ========================================================= */
html { scrollbar-width: thin; scrollbar-color: #1d5fc4 rgba(255,255,255,.055); scroll-behavior: smooth; }
html[data-theme="light"] { scrollbar-color: #2d6ed3 rgba(8,17,31,.08); }
body::-webkit-scrollbar { width: 10px; }
body::-webkit-scrollbar-track { background: rgba(255,255,255,.035); }
body::-webkit-scrollbar-thumb {
  background: linear-gradient(180deg,#3b82f6,#124fa8);
  border: 2px solid transparent; background-clip: padding-box; border-radius: 999px; min-height: 48px;
}
body::-webkit-scrollbar-thumb:hover { background: linear-gradient(180deg,#60a5fa,#1d5fc4); background-clip: padding-box; }
html[data-theme="light"] body::-webkit-scrollbar-track { background: rgba(8,17,31,.055); }
html[data-theme="light"] body::-webkit-scrollbar-thumb { background: linear-gradient(180deg,#3b82f6,#1652a4); background-clip: padding-box; }

/* Accessibility + mobile refinements */
html { text-rendering: optimizeLegibility; }
body { overflow-wrap: anywhere; }
button, a, input, textarea, select { -webkit-tap-highlight-color: transparent; }
.btn-full { width: 100%; justify-content: center; }
input, textarea, button, select { font-size: 16px; } /* prevents iOS zoom on form controls */
@media (max-width: 768px) {
  .nav-inner { min-height: 58px; }
  .nav-logo { min-height: 44px; }
  .nav-burger, .theme-toggle { min-width: 44px; min-height: 44px; }
  .mobile-drawer .nav-link { min-height: 48px; display: flex; align-items: center; }
  .btn, .filter-btn, .social-btn { min-height: 44px; }
}
@media (max-width: 480px) {
  .nav-logo-mark { width: 30px; height: 30px; }
  .nav-logo { gap: 8px; }
  .theme-toggle { min-width: 44px; padding: 8px; }
  .theme-toggle-label { display: none; }
}
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
}