/* ============================================================
   MAIN CSS — Navigation, Layout, Portfolio, Pages
   ============================================================ */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700&family=JetBrains+Mono:wght@400;500;600&display=swap');
@import './design-system.css';

/* ========== CUSTOM CURSOR ========== */
.cursor-halo {
  position: fixed;
  top: 0;
  left: 0;
  width: 400px;
  height: 400px;
  border-radius: 50%;
  pointer-events: none;
  z-index: 9999;
  transform: translate(-50%, -50%);
  /* Soft turquoise light that adds brightness to everything under it */
  background: radial-gradient(circle, rgba(0,245,212,0.12) 0%, rgba(0,245,212,0.05) 30%, transparent 60%);
  mix-blend-mode: screen; 
  transition: width 0.4s cubic-bezier(0.16,1,0.3,1), height 0.4s cubic-bezier(0.16,1,0.3,1), background 0.4s;
  will-change: transform;
}

.cursor-halo.hovering {
  width: 600px;
  height: 600px;
  background: radial-gradient(circle, rgba(0,245,212,0.18) 0%, rgba(0,245,212,0.08) 30%, transparent 65%);
}
@media (pointer: coarse) {
  .cursor-halo { display: none !important; }
}

/* ========== NAVIGATION ========== */
.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: var(--nav-height);
  z-index: 10000; /* Above scanlines (9999) and vignette (9998) */
  background: var(--nav-bg);
  -webkit-backdrop-filter: blur(12px);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
  transition: border-color var(--transition-normal);
}

/* Theme Toggle Premium Animated Bulb */
.theme-toggle {
  display: flex !important;
  align-items: center;
  justify-content: center;
  background: transparent;
  border: none;
  cursor: pointer;
  color: var(--text-muted);
  transition: all 0.3s ease;
  padding: var(--sp-2) !important;
  border-radius: 50%;
}
.theme-toggle:hover {
  background: rgba(251, 191, 36, 0.05);
}
.theme-toggle svg {
  width: 22px;
  height: 22px;
  transition: all 0.4s cubic-bezier(0.16,1,0.3,1);
}

/* Bulb Core & Filament Baseline */
.bulb-core, .bulb-filament {
  transition: all 0.4s cubic-bezier(0.16,1,0.3,1);
}

/* Explosive rays (zero scale off state) */
.bulb-rays {
  opacity: 0;
  transform-origin: 12px 12px;
  transform: scale(0.3) rotate(-45deg);
  transition: all 0.5s cubic-bezier(0.34, 1.56, 0.64, 1);
  stroke: #fbbf24; /* CSS always wins over inline, dark mode hides via opacity:0 */
}

/* Hover or Active ON state: Triple layer intense neon glow on strokes */
.theme-toggle:hover .bulb-core,
.theme-toggle:hover .bulb-base,
:root[data-theme='light'] .theme-toggle .bulb-core,
:root[data-theme='light'] .theme-toggle .bulb-base {
  stroke: #fbbf24;
  color: #fbbf24;
  filter: drop-shadow(0 0 6px rgba(251,191,36,0.8)) drop-shadow(0 0 16px rgba(251,191,36,0.5));
}

.theme-toggle:hover .bulb-filament,
:root[data-theme='light'] .theme-toggle .bulb-filament {
  opacity: 0; /* Filament burns out into blinding light */
}

/* When fully ON, trigger the rotational ray explosion */
:root[data-theme='light'] .theme-toggle .bulb-rays {
  opacity: 1;
  transform: scale(1) rotate(0deg);
  filter: drop-shadow(0 0 4px rgba(251,191,36,0.9));
}

.nav.scrolled { border-bottom-color: var(--border-bright); }
.nav-inner {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 var(--sp-6);
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--sp-8);
}
.nav-logo {
  font-family: var(--font-mono);
  font-size: var(--size-sm);
  font-weight: var(--weight-semi);
  color: var(--phosphor);
  letter-spacing: 0.02em;
  display: flex;
  align-items: center;
  gap: 0;
  flex-shrink: 0;
  text-shadow: 0 0 10px var(--phosphor-glow);
}
/* Blinking cursor bar */
.nav-cursor {
  display: inline-block;
  margin-left: 1px;
  animation: nav-blink 1s step-end infinite;
  opacity: 1;
  transition: opacity 0.2s;
}
.nav-cursor.hidden { opacity: 0; animation: none; }
@keyframes nav-blink {
  0%, 100% { opacity: 1; }
  50%       { opacity: 0; }
}
/* Eye SVG — hidden by default, JS reveals it */
.nav-eye {
  width: 0;
  height: 11px;
  margin-left: 2px;
  opacity: 0;
  overflow: visible;
  vertical-align: middle;
  color: var(--phosphor);
  filter: drop-shadow(0 0 3px var(--phosphor-glow));
  transition: opacity 0.3s ease, width 0.3s ease;
}
.nav-eye.visible {
  opacity: 1;
  width: 20px;
}
/* Pupil moves via JS translateX on #eye-pupil */
#eye-pupil { transition: transform 0.3s ease; }
/* Eyelid blink — JS adds .blink class */
#eye-lid {
  transform: scaleY(0);
  transition: transform 0.12s ease-in-out;
}
#eye-lid.blink { transform: scaleY(1); }
.nav-links {
  display: flex;
  align-items: center;
  gap: var(--sp-8);
}
.nav-link {
  font-family: var(--font-mono);
  font-size: var(--size-xs);
  letter-spacing: 0.1em;
  text-transform: lowercase;
  color: var(--text-muted);
  transition: color var(--transition-fast);
  position: relative;
}
.nav-link::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 0;
  height: 1px;
  background: var(--phosphor);
  transition: width var(--transition-fast);
  box-shadow: var(--glow-sm);
}
.nav-link:hover, .nav-link.active { color: var(--phosphor); }
.nav-link:hover::after, .nav-link.active::after { width: 100%; }
.nav-right {
  display: flex;
  align-items: center;
  gap: var(--sp-4);
  flex-shrink: 0;
}

/* Language Selector */
.lang-select {
  background: transparent;
  border: 1px solid var(--border);
  color: var(--text-muted);
  padding: var(--sp-1) var(--sp-3);
  font-family: var(--font-mono);
  font-size: var(--size-xs);
  cursor: pointer;
  border-radius: var(--border-radius);
  transition: all var(--transition-fast);
  letter-spacing: 0.05em;
  outline: none;
}
.lang-select:hover, .lang-select:focus {
  border-color: var(--phosphor-dim);
  color: var(--phosphor);
}

/* Search */
.search-wrap {
  position: relative;
  display: flex;
  align-items: center;
}
.search-btn {
  color: var(--text-muted);
  width: 32px;
  height: 32px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--border-radius);
  transition: color var(--transition-fast);
}
.search-btn:hover { color: var(--phosphor); }
.search-bar {
  position: absolute;
  right: 40px;
  top: 50%;
  transform: translateY(-50%);
  width: 0;
  overflow: hidden;
  transition: width var(--transition-normal);
}
.search-bar.open { width: 240px; }
.search-bar input {
  width: 100%;
  background: var(--surface);
  border: 1px solid var(--border-bright);
  border-radius: var(--border-radius);
  color: var(--text);
  padding: var(--sp-2) var(--sp-3);
  font-family: var(--font-mono);
  font-size: var(--size-xs);
  outline: none;
}
.search-bar input:focus { border-color: var(--phosphor-dim); }

/* Mobile Menu */
.hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  width: 24px;
  cursor: pointer;
  background: transparent;
  border: none;
  padding: 0;
  z-index: 105;
}
.hamburger span {
  display: block;
  height: 1px;
  background: var(--text-muted);
  transition: all var(--transition-fast);
}
.hamburger.open span:nth-child(1) { transform: translateY(6px) rotate(45deg); }
.hamburger.open span:nth-child(2) { opacity: 0; }
.hamburger.open span:nth-child(3) { transform: translateY(-6px) rotate(-45deg); }
/* Mobile menu overlay backdrop */
.mobile-menu-backdrop {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(7,9,11,0.7);
  -webkit-backdrop-filter: blur(4px);
  backdrop-filter: blur(4px);
  z-index: 9999;
  opacity: 0;
  transition: opacity 0.3s ease;
  pointer-events: none;
}
@media (max-width: 768px) {
  .mobile-menu-backdrop { display: block; }
}
.mobile-menu-backdrop.open { opacity: 1; pointer-events: auto; }

.mobile-menu {
  display: none;
  visibility: hidden;
  position: fixed;
  top: var(--nav-height);
  left: 0;
  right: 0;
  background: var(--bg);
  border-bottom: 1px solid var(--phosphor);
  box-shadow: 0 10px 30px rgba(0,0,0,0.9), 0 2px 10px var(--phosphor-glow);
  padding: var(--sp-6) var(--sp-8);
  z-index: 10001; /* Above nav (10000) */
  flex-direction: column;
  justify-content: flex-start;
  align-items: flex-start;
  gap: var(--sp-4);
  pointer-events: none;
  transform: translateY(-100%);
  transition: transform 0.3s cubic-bezier(0.2, 0.8, 0.2, 1), visibility 0.3s;
}
@media (max-width: 768px) {
  .mobile-menu { display: flex; }
}

.mobile-menu.open {
  visibility: visible;
  pointer-events: auto;
  transform: translateY(0);
}

.mobile-menu .nav-link {
  font-size: var(--size-sm);
  font-family: var(--font-mono);
  text-transform: lowercase;
  color: var(--text-muted);
  padding: var(--sp-2) 0;
  border: none;
  width: 100%;
  position: relative;
  display: flex;
  align-items: center;
  gap: var(--sp-3);
  transition: color var(--transition-fast);
}

/* Terminal prompt arrow */
.mobile-menu .nav-link::before {
  content: '>';
  color: var(--phosphor);
  font-weight: bold;
  opacity: 0;
  transform: translateX(-10px);
  transition: all var(--transition-fast);
}

.mobile-menu .nav-link:hover, .mobile-menu .nav-link.active {
  color: var(--phosphor);
}

.mobile-menu .nav-link:hover::before, .mobile-menu .nav-link.active::before {
  opacity: 1;
  transform: translateX(0);
}
.mobile-menu.open .nav-link:nth-child(3) { animation-delay: 0.2s; }

/* Mobile menu divider */
.mobile-menu-divider {
  width: 100%;
  height: 1px;
  background: var(--border);
  margin: var(--sp-2) 0;
}

/* Mobile menu search */
.mobile-search-wrap {
  display: flex;
  align-items: center;
  gap: var(--sp-3);
  width: 100%;
  padding: var(--sp-2) 0;
  border-bottom: 1px solid var(--border);
}
.mobile-search-wrap input {
  flex: 1;
  background: var(--bg);
  -webkit-appearance: none;
  border: none;
  outline: none;
  font-family: var(--font-mono);
  font-size: var(--size-sm);
  color: var(--text);
  caret-color: var(--phosphor);
}
.mobile-search-wrap input::placeholder { color: var(--text-muted); }

/* Mobile lang selector */
.mobile-lang-select {
  width: 100%;
  margin-top: var(--sp-1);
}

@media (max-width: 768px) {
  .nav-links { display: none; }
  .hamburger { display: flex; }
  .search-bar.open { width: 160px; }
  .theme-toggle { padding: var(--sp-1) !important; }
  /* Hide search and lang from nav on mobile — they live in the mobile menu */
  .search-wrap { display: none !important; }
  .lang-select:not(.mobile-lang-select) { display: none !important; }
  .nav-right { gap: var(--sp-2); }
}

/* ========== PAGE WRAPPER ========== */
.page-wrap {
  padding-top: var(--nav-height);
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}
main { flex: 1; }

/* ========== HERO ========== */
.hero {
  padding: var(--sp-32) 0 var(--sp-24);
  position: relative;
}
.hero-eyebrow {
  font-family: var(--font-mono);
  font-size: var(--size-xs);
  color: var(--phosphor);
  letter-spacing: 0.2em;
  text-transform: uppercase;
  margin-bottom: var(--sp-6);
  opacity: 0;
  animation: fade-up 0.6s ease 0.1s forwards;
}
.hero-title {
  font-size: clamp(2.5rem, 6vw, var(--size-5xl));
  font-weight: var(--weight-bold);
  line-height: 1.1;
  letter-spacing: -0.02em;
  margin-bottom: var(--sp-6);
  opacity: 0;
  animation: fade-up 0.6s ease 0.2s forwards;
}
.hero-title .line-phosphor { color: var(--phosphor); display: block; font-family: var(--font-mono); }
.hero-title .line-phosphor::after {
  content: '_';
  animation: blink 1s step-end infinite;
  opacity: 0.8;
  margin-left: 4px;
}
.hero-title .line-phosphor.hide-cursor::after {
  display: none;
}
@keyframes blink {
  0%, 100% { opacity: 1; }
  50% { opacity: 0; }
}
.hero-sub {
  font-size: var(--size-lg);
  color: var(--text-muted);
  max-width: 560px;
  line-height: var(--leading-loose);
  margin-bottom: var(--sp-10);
  opacity: 0;
  animation: fade-up 0.6s ease 0.3s forwards;
}
.hero-cta {
  display: flex;
  gap: var(--sp-4);
  flex-wrap: wrap;
  opacity: 0;
  animation: fade-up 0.6s ease 0.4s forwards;
}

/* Animated grid lines (decorative) */
.hero-grid {
  position: absolute;
  inset: 0;
  pointer-events: none;
  overflow: hidden;
  opacity: 0.04;
}
.hero-grid::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(var(--phosphor) 1px, transparent 1px),
    linear-gradient(90deg, var(--phosphor) 1px, transparent 1px);
  background-size: 60px 60px;
}

/* ========== TAG FILTER STRIP ========== */
.tag-strip {
  display: flex;
  flex-wrap: wrap;
  gap: var(--sp-2);
  margin-bottom: var(--sp-10);
  padding: var(--sp-4) 0;
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
  align-items: center;
}
.tag-strip-label {
  font-family: var(--font-mono);
  font-size: var(--size-xs);
  color: var(--text-dim);
  letter-spacing: 0.1em;
  margin-right: var(--sp-2);
  white-space: nowrap;
}

/* ========== PORTFOLIO GRID ========== */
.portfolio-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--sp-6);
  margin-bottom: var(--sp-20);
}
@media (max-width: 1024px) { .portfolio-grid { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 640px)  { .portfolio-grid { grid-template-columns: 1fr; gap: var(--sp-4); } }

.portfolio-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--border-radius);
  overflow: hidden;
  cursor: pointer;
  transition: border-color var(--transition-normal), transform var(--transition-normal), box-shadow var(--transition-normal);
  position: relative;
}
.portfolio-card:hover {
  border-color: var(--phosphor-dim);
  transform: translateY(-3px);
  box-shadow: var(--glow-sm), 0 8px 32px rgba(0,0,0,0.4);
}
.portfolio-card-thumb {
  aspect-ratio: 4/3;
  overflow: hidden;
  position: relative;
  background: var(--surface-elevated);
}
.portfolio-card-thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.5s ease, opacity 0.4s ease;
}
/* Skeleton loading state */
.portfolio-card-thumb img.img-skeleton {
  opacity: 0;
  background: var(--surface-elevated);
  animation: shimmer-card 1.4s ease-in-out infinite;
}
.portfolio-card-thumb img.img-loaded {
  opacity: 1;
}
@keyframes shimmer-card {
  0%, 100% { background-color: var(--surface); }
  50% { background-color: var(--surface-elevated); }
}
.portfolio-card:hover .portfolio-card-thumb img { transform: scale(1.04); }

/* ── 90s Terminal Overlay ─────────────────────────────────────────────────── */
/* Sits above the image, below hover UI. mix-blend-mode:color tints without   */
/* destroying contrast — images turn phosphor-green monochrome on dark mode.   */
.portfolio-card-thumb::after {
  content: '';
  position: absolute;
  inset: 0;
  background: var(--phosphor, #00ffa3);
  opacity: 0.18;
  mix-blend-mode: color;
  pointer-events: none;
  transition: opacity 0.4s ease;
  z-index: 1;
}
.portfolio-card:hover .portfolio-card-thumb::after {
  opacity: 0.08; /* lift on hover — image breathes through */
}
/* Faint horizontal scanline texture */
.portfolio-card-thumb::before {
  content: '';
  position: absolute;
  inset: 0;
  background: repeating-linear-gradient(
    to bottom,
    transparent 0px,
    transparent 2px,
    rgba(0, 0, 0, 0.10) 2px,
    rgba(0, 0, 0, 0.10) 3px
  );
  pointer-events: none;
  z-index: 2;
  opacity: 0.5;
}
.portfolio-card-thumb .thumb-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, rgba(7,9,11,0.9) 0%, transparent 50%);
  opacity: 0;
  transition: opacity var(--transition-normal);
}
.portfolio-card:hover .thumb-overlay { opacity: 1; }
.portfolio-card-meta {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  padding: var(--sp-4);
  transform: translateY(8px);
  opacity: 0;
  transition: all var(--transition-normal);
}
.portfolio-card:hover .portfolio-card-meta { opacity: 1; transform: translateY(0); }
.portfolio-card-body {
  padding: var(--sp-4);
}
.portfolio-card-title {
  font-size: var(--size-base);
  font-weight: var(--weight-semi);
  margin-bottom: var(--sp-2);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.portfolio-card-tags {
  display: flex;
  flex-wrap: wrap;
  gap: var(--sp-1);
}
.portfolio-card-year {
  font-family: var(--font-mono);
  font-size: var(--size-xs);
  color: var(--text-dim);
  margin-left: auto;
}

/* Empty state */
.empty-state {
  grid-column: 1 / -1;
  text-align: center;
  padding: var(--sp-24) 0;
  color: var(--text-muted);
  font-family: var(--font-mono);
  font-size: var(--size-sm);
}

/* ========== SEARCH RESULTS (overlay) ========== */
.search-overlay {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(7,9,11,0.95);
  z-index: 200;
  padding: var(--sp-24) var(--sp-6);
  overflow-y: auto;
}
.search-overlay.open { display: block; }
.search-overlay-header {
  max-width: 640px;
  margin: 0 auto var(--sp-8);
  position: relative;
  display: flex;
  align-items: center;
  gap: var(--sp-3);
  border-bottom: 1px solid var(--phosphor-dim);
  padding-bottom: var(--sp-3);
}
.search-overlay-header input {
  flex: 1;
  background: transparent;
  border: none;
  color: var(--phosphor);
  padding: 0;
  font-family: var(--font-mono);
  font-size: var(--size-lg);
  outline: none;
  caret-color: var(--phosphor);
}
.search-overlay-header input::placeholder {
  color: var(--phosphor-dim);
  opacity: 0.5;
}
.search-close {
  position: absolute;
  right: var(--sp-4);
  top: 50%;
  transform: translateY(-50%);
  color: var(--text-muted);
  cursor: pointer;
}
.search-results { max-width: 640px; margin: 0 auto; }

/* ========== FOOTER ========== */
.footer {
  border-top: 1px solid var(--border);
  padding: var(--sp-10) 0;
  margin-top: auto;
}
.footer-inner {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 var(--sp-6);
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: var(--sp-4);
}
.footer-copy {
  font-family: var(--font-mono);
  font-size: var(--size-xs);
  color: var(--text-dim);
}
.footer-links {
  display: flex;
  gap: var(--sp-6);
}
.footer-links a {
  font-family: var(--font-mono);
  font-size: var(--size-xs);
  color: var(--text-muted);
  letter-spacing: 0.05em;
  transition: color var(--transition-fast);
}
.footer-links a:hover { color: var(--phosphor); }

/* ========== SECTION PADDING ========== */
.section { padding: var(--sp-20) 0; }
.section-sm { padding: var(--sp-12) 0; }

/* ========== ABOUT PAGE ========== */
.about-grid {
  display: grid;
  grid-template-columns: 1fr 1.5fr;
  gap: var(--sp-16);
  align-items: start;
}
@media (max-width: 768px) { .about-grid { grid-template-columns: 1fr; } }
.about-portrait {
  aspect-ratio: 3/4;
  border: 1px solid var(--border);
  border-radius: var(--border-radius);
  overflow: hidden;
  position: relative;
  box-shadow: var(--glow-sm);
}
.about-portrait img { width: 100%; height: 100%; object-fit: cover; filter: grayscale(20%); }
.about-portrait::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, var(--phosphor-faint) 0%, transparent 60%);
}
.about-text h1 { font-size: var(--size-3xl); font-weight: var(--weight-bold); margin-bottom: var(--sp-6); line-height: var(--leading-tight); }
.about-text p { color: var(--text-muted); line-height: var(--leading-loose); margin-bottom: var(--sp-4); }
.skills-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--sp-3);
  margin-top: var(--sp-8);
}
.skill-item {
  display: flex;
  align-items: center;
  gap: var(--sp-3);
  padding: var(--sp-3) var(--sp-4);
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--border-radius);
  font-family: var(--font-mono);
  font-size: var(--size-xs);
  color: var(--text-muted);
  transition: all var(--transition-fast);
}
.skill-item:hover { border-color: var(--phosphor-dim); color: var(--phosphor); }
.skill-dot { width: 6px; height: 6px; border-radius: 50%; background: var(--phosphor); box-shadow: var(--glow-sm); flex-shrink: 0; }

/* ========== CHAT PAGE ========== */
.chat-layout {
  display: flex;
  flex-direction: column;
  gap: var(--sp-6);
  padding: var(--sp-12) 0;
  max-width: 800px;
  margin: 0 auto;
  min-height: calc(100dvh - var(--nav-height) - 100px);
}
.chat-info { text-align: center; margin-bottom: var(--sp-2); }
.chat-info p.section-label { justify-content: center; margin-bottom: var(--sp-2); }
.chat-info p.section-label::after { display: none; }
.chat-info h1 { font-size: var(--size-3xl); font-weight: var(--weight-bold); line-height: var(--leading-tight); margin-bottom: var(--sp-4); }
.chat-info p { color: var(--text-muted); line-height: var(--leading-loose); margin-bottom: 0; }
.service-list { display: flex; flex-direction: column; gap: var(--sp-2); }
.service-item {
  display: flex;
  align-items: center;
  gap: var(--sp-3);
  font-family: var(--font-mono);
  font-size: var(--size-xs);
  color: var(--text-muted);
  padding: var(--sp-2) 0;
  border-bottom: 1px solid var(--border);
}
.service-item::before { content: '>'; color: var(--phosphor); }

/* Chat UI */
.chat-container {
  display: flex;
  flex-direction: column;
  height: 600px;
  max-height: 70vh;
  flex: 1;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--border-radius-lg);
  overflow: hidden;
  box-shadow: var(--glow-sm);
}
.chat-header {
  padding: var(--sp-4) var(--sp-6);
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: center;
  gap: var(--sp-3);
}
.chat-status-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--success);
  box-shadow: 0 0 6px var(--success);
  animation: pulse 2s ease infinite;
}
@keyframes pulse {
  0%, 100% { opacity: 1; }
  50%       { opacity: 0.4; }
}
.chat-header-title { font-family: var(--font-mono); font-size: var(--size-sm); color: var(--phosphor); }
.chat-messages {
  flex: 1;
  overflow-y: auto;
  padding: var(--sp-6);
  display: flex;
  flex-direction: column;
  gap: var(--sp-4);
  scroll-behavior: smooth;
}
.chat-messages::-webkit-scrollbar { width: 4px; }
.chat-messages::-webkit-scrollbar-track { background: transparent; }
.chat-messages::-webkit-scrollbar-thumb { background: var(--border-bright); border-radius: 2px; }
.chat-bubble {
  max-width: 80%;
  padding: var(--sp-3) var(--sp-4);
  border-radius: var(--border-radius);
  font-size: var(--size-sm);
  line-height: var(--leading-loose);
  animation: fade-up 0.3s ease;
}
.chat-bubble.ai {
  background: var(--surface-elevated);
  border: 1px solid var(--border);
  color: var(--text);
  align-self: flex-start;
  border-left: 2px solid var(--phosphor);
}
.chat-bubble.user {
  background: var(--phosphor-faint);
  border: 1px solid var(--phosphor-dim);
  color: var(--text);
  align-self: flex-end;
  font-family: var(--font-mono);
}
.chat-bubble.typing {
  display: flex;
  gap: var(--sp-1);
  padding: var(--sp-4);
}
.typing-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--phosphor-dim);
  animation: typing-bounce 1.2s ease infinite;
}
.typing-dot:nth-child(2) { animation-delay: 0.2s; }
.typing-dot:nth-child(3) { animation-delay: 0.4s; }
@keyframes typing-bounce {
  0%, 80%, 100% { transform: scale(1); opacity: 0.5; }
  40%           { transform: scale(1.3); opacity: 1; }
}
.chat-input-wrap {
  padding: var(--sp-4) var(--sp-6);
  border-top: 1px solid var(--border);
  display: flex;
  align-items: center; /* center-align so send button stays aligned */
  gap: var(--sp-3);
  flex-shrink: 0; /* don't shrink in flex container */
}
.chat-input {
  flex: 1;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--border-radius);
  color: var(--text);
  padding: var(--sp-3) var(--sp-4);
  font-family: var(--font-mono);
  font-size: var(--size-sm); /* 0.875rem - fine on desktop */
  outline: none;
  resize: none;
  min-height: 44px;
  max-height: 120px;
  overflow-y: auto;
  line-height: normal;
}
.chat-input:focus { border-color: var(--phosphor-dim); }
.chat-send {
  width: 44px;
  height: 44px;
  border-radius: var(--border-radius);
  background: var(--phosphor);
  color: var(--bg);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: all var(--transition-fast);
  flex-shrink: 0;
  align-self: flex-end; /* pin to bottom when textarea grows */
}
.chat-send:hover { box-shadow: var(--glow-md); transform: scale(1.05); }
.chat-send:disabled { opacity: 0.4; cursor: not-allowed; transform: none; }

/* ========== GLOBAL MOBILE MINIMALISM ========== */
@media (max-width: 768px) {
  /* Global Layout */
  .section { padding: var(--sp-10) 0; }
  .section-sm { padding: var(--sp-6) 0; }
  .section-label { font-size: 10px; margin-bottom: var(--sp-2); }
  
  /* Hero */
  .hero { padding: var(--sp-16) 0 var(--sp-8); }
  .hero-eyebrow { font-size: 10px; margin-bottom: var(--sp-4); }
  .hero-title { font-size: clamp(2rem, 8vw, 2.5rem); margin-bottom: var(--sp-4); }
  .hero-sub { font-size: var(--size-sm); margin-bottom: var(--sp-6); }
  .hero-cta .btn { font-size: 10px; padding: var(--sp-2) var(--sp-4); }
  
  /* Portfolio Grid */
  .portfolio-card { border-radius: 6px; }
  .portfolio-card-body { padding: var(--sp-3); }
  .portfolio-card-title { font-size: var(--size-sm); }
  .portfolio-card-tags .tag { font-size: 9px; padding: 2px 6px; }
  .portfolio-card-meta { padding: var(--sp-3); opacity: 1; transform: translateY(0); background: linear-gradient(to top, rgba(7,9,11,0.95) 0%, transparent 100%); }
  .thumb-overlay { opacity: 0.6; }
  .portfolio-grid { gap: var(--sp-4); margin-bottom: var(--sp-12); }
  
  /* About Page */
  .about-grid { gap: var(--sp-8); margin-top: var(--sp-8); }
  .about-portrait { max-width: 250px; margin: 0 auto; }
  .about-text h1 { font-size: clamp(1.75rem, 6vw, 2rem); margin-bottom: var(--sp-4); }
  .about-text p { font-size: var(--size-sm); margin-bottom: var(--sp-4); }
  .skills-grid { gap: var(--sp-3); margin-top: var(--sp-6); }
  .skill-item { padding: var(--sp-2) var(--sp-3); font-size: 11px; }
  
  /* Chatbot Page */
  .chat-layout { padding: var(--sp-6) 0; gap: var(--sp-4); min-height: calc(100dvh - var(--nav-height) - 80px); }
  .chat-info h1 { font-size: var(--size-xl); margin-bottom: var(--sp-2); }
  .chat-info p { font-size: var(--size-xs); }
  .chat-container {
    border-radius: 6px;
    /* Make chat container fill remaining viewport so input stays at bottom */
    flex: 1;
    display: flex;
    flex-direction: column;
    min-height: 0; /* allow shrink in flex */
  }
  .chat-header { padding: var(--sp-2) var(--sp-4); }
  .chat-header-title { font-size: var(--size-xs); }
  .chat-messages { padding: var(--sp-3); gap: var(--sp-3); }
  .chat-bubble { font-size: var(--size-xs); padding: var(--sp-2) var(--sp-3); max-width: 90%; }
  .chat-input-wrap {
    padding: var(--sp-2) var(--sp-3);
    gap: var(--sp-2);
    /* Sticky at bottom of chat container on mobile */
    position: sticky;
    bottom: 0;
    background: var(--surface);
    border-top: 1px solid var(--border);
  }
  /* Prevent iOS zoom: font-size must be >= 16px on inputs */
  .chat-input {
    padding: var(--sp-2) var(--sp-3);
    font-size: 16px; /* Exact px to prevent iOS Safari zoom on focus */
    min-height: 44px; /* Apple HIG minimum tap target */
    max-height: 80px;
  }
  .chat-send { width: 44px; height: 44px; align-self: flex-end; }
  .chat-send svg { width: 14px; height: 14px; }
  
  /* Footer */
  .footer { padding: var(--sp-6) 0; }
  .footer-inner { flex-direction: column; text-align: center; gap: var(--sp-4); }
  .footer-links { justify-content: center; flex-wrap: wrap; }
}

/* ========== COOKIE POLICY BANNER ========== */
.cookie-banner {
  position: fixed;
  bottom: var(--sp-6);
  left: 50%;
  transform: translate(-50%, 150%);
  width: calc(100% - var(--sp-8));
  max-width: 480px;
  background: rgba(7,9,11,0.85);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border: 1px solid var(--border);
  padding: var(--sp-4) var(--sp-6);
  border-radius: var(--radius-xl);
  z-index: 9999;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--sp-4);
  transition: transform 0.6s cubic-bezier(0.16,1,0.3,1);
}
.cookie-banner.show {
  transform: translate(-50%, 0);
}
:root[data-theme='light'] .cookie-banner {
  background: rgba(255, 255, 255, 0.85);
}
.cookie-text {
  font-size: var(--size-sm);
  color: var(--text-muted);
  margin: 0;
  line-height: var(--leading-tight);
}
.cookie-text a {
  color: var(--text);
  text-decoration: underline;
  text-underline-offset: 3px;
}
.cookie-text a:hover {
  color: var(--phosphor);
}
.cookie-btn {
  background: var(--surface-elevated);
  color: var(--phosphor);
  border: 1px solid var(--phosphor-dim);
  padding: var(--sp-2) var(--sp-4);
  border-radius: var(--border-radius);
  font-family: var(--font-mono);
  font-size: var(--size-xs);
  cursor: pointer;
  transition: all var(--transition-fast);
  white-space: nowrap;
}
.cookie-btn:hover {
  background: rgba(0, 255, 204, 0.1);
}