/* ============================================
   Amanda Gama — Resume Website
   Code-Native Redesign · Light + Dark
   ============================================ */

:root {
  --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --font-mono: 'JetBrains Mono', 'SF Mono', Menlo, Consolas, monospace;

  /* Light palette (default) */
  --bg: #f7f6f2;
  --bg-alt: #efece4;
  --surface: #ffffff;
  --surface-2: #faf8f3;
  --text: #0d0d0e;
  --text-secondary: #444446;
  --text-muted: #7a7a7e;
  --border: #e3dfd5;
  --border-strong: #c8c3b6;
  --accent: #65a30d;
  --accent-hover: #4d7c0f;
  --accent-text: #1a2e05;
  --accent-soft: rgba(132, 204, 22, 0.16);
  --accent-glow: rgba(132, 204, 22, 0.25);
  --syntax-string: #b45309;
  --syntax-string-soft: rgba(180, 83, 9, 0.1);
  --syntax-comment: #9a9893;
  --syntax-keyword: #7c3aed;

  --chrome-red: #ff5f57;
  --chrome-yellow: #febc2e;
  --chrome-green: #28c840;

  --radius: 6px;
  --radius-sm: 4px;
  --radius-lg: 10px;
  --max-width: 1100px;
  --nav-height: 64px;
  --shadow-sm: 0 1px 2px rgba(13, 13, 14, 0.04);
  --shadow-md: 0 2px 12px rgba(13, 13, 14, 0.06);
  --transition: 0.2s ease;
}

[data-theme="dark"] {
  --bg: #0e0e10;
  --bg-alt: #15151a;
  --surface: #1a1a20;
  --surface-2: #14141a;
  --text: #ebe9e3;
  --text-secondary: #b6b3ab;
  --text-muted: #76757b;
  --border: #27272e;
  --border-strong: #3a3a44;
  --accent: #bef264;
  --accent-hover: #d9f99d;
  --accent-text: #0d1f00;
  --accent-soft: rgba(190, 242, 100, 0.12);
  --accent-glow: rgba(190, 242, 100, 0.18);
  --syntax-string: #fbbf24;
  --syntax-string-soft: rgba(251, 191, 36, 0.12);
  --syntax-comment: #5c5b62;
  --syntax-keyword: #c084fc;

  --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.3);
  --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.35);
}

/* ---- Reset ---- */
*, *::before, *::after {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  scroll-padding-top: calc(var(--nav-height) + 16px);
}

body {
  font-family: var(--font-sans);
  color: var(--text);
  background: var(--bg);
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
  transition: background-color 0.25s ease, color 0.25s ease;
}

a { text-decoration: none; color: inherit; }
ul { list-style: none; }
img { max-width: 100%; }
button { font: inherit; color: inherit; background: none; border: none; cursor: pointer; }

::selection {
  background: var(--accent-soft);
  color: var(--text);
}

.container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 24px;
}

/* ---- Mono utilities ---- */
.mono { font-family: var(--font-mono); }

/* ---- Window chrome (used on hero card, building card, contact panel) ---- */
.window {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  transition: border-color 0.25s ease, background-color 0.25s ease;
}

.window-chrome {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 10px 14px;
  background: var(--surface-2);
  border-bottom: 1px solid var(--border);
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: var(--text-muted);
}

.window-dots {
  display: inline-flex;
  gap: 6px;
  margin-right: 8px;
}

.window-dots span {
  width: 11px;
  height: 11px;
  border-radius: 50%;
  display: inline-block;
}

.window-dots span:nth-child(1) { background: var(--chrome-red); }
.window-dots span:nth-child(2) { background: var(--chrome-yellow); }
.window-dots span:nth-child(3) { background: var(--chrome-green); }

.window-filename {
  font-weight: 500;
  letter-spacing: 0.01em;
}

.window-body {
  padding: 28px;
}

/* ---- Navigation ---- */
.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  background: var(--bg);
  border-bottom: 1px solid transparent;
  transition: border-color 0.25s ease, background-color 0.25s ease;
}

.nav.scrolled {
  border-bottom-color: var(--border);
}

.nav-inner {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 24px;
  height: var(--nav-height);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}

.nav-logo {
  font-family: var(--font-mono);
  font-weight: 600;
  font-size: 0.85rem;
  color: var(--text);
  white-space: nowrap;
}

.nav-logo .nav-logo-prompt {
  color: var(--accent);
}

.nav-logo .nav-logo-cursor {
  display: inline-block;
  width: 0.5ch;
  height: 1em;
  background: var(--accent);
  vertical-align: -2px;
  margin-left: 2px;
  animation: blink 1s steps(1) infinite;
}

@keyframes blink {
  50% { opacity: 0; }
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 6px;
}

.nav-links a {
  font-family: var(--font-mono);
  font-size: 0.82rem;
  font-weight: 500;
  color: var(--text-secondary);
  padding: 6px 10px;
  border-radius: var(--radius-sm);
  transition: color var(--transition), background-color var(--transition);
  position: relative;
}

.nav-links a:hover,
.nav-links a.active {
  color: var(--accent);
  background: var(--accent-soft);
}

.nav-cta {
  color: var(--accent-text) !important;
  background: var(--accent) !important;
  padding: 6px 12px !important;
  margin-left: 4px;
}

.nav-cta:hover {
  background: var(--accent-hover) !important;
}

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

.theme-toggle {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: var(--text-secondary);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 5px 10px;
  transition: var(--transition);
  white-space: nowrap;
}

.theme-toggle:hover {
  color: var(--text);
  border-color: var(--border-strong);
  background: var(--bg-alt);
}

.theme-toggle-icon {
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background:
    radial-gradient(circle at 30% 30%, var(--text) 50%, transparent 50.5%);
  position: relative;
  flex-shrink: 0;
}

[data-theme="dark"] .theme-toggle-icon {
  background:
    radial-gradient(circle at 70% 30%, var(--text) 50%, transparent 50.5%);
}

.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 4px;
  padding: 8px;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
}

.nav-toggle span {
  width: 18px;
  height: 1.5px;
  background: var(--text);
  border-radius: 2px;
  transition: var(--transition);
}

/* ---- Mobile menu ---- */
.mobile-menu {
  display: none;
  position: fixed;
  top: var(--nav-height);
  left: 0;
  right: 0;
  background: var(--bg);
  padding: 16px 24px 24px;
  flex-direction: column;
  gap: 4px;
  z-index: 999;
  border-bottom: 1px solid var(--border);
  transform: translateY(-8px);
  opacity: 0;
  transition: var(--transition);
}

.mobile-menu.open {
  display: flex;
  transform: translateY(0);
  opacity: 1;
}

.mobile-menu a {
  font-family: var(--font-mono);
  font-size: 0.95rem;
  font-weight: 500;
  color: var(--text-secondary);
  padding: 10px 12px;
  border-radius: var(--radius-sm);
}

.mobile-menu a:hover {
  color: var(--accent);
  background: var(--accent-soft);
}

/* ---- Hero ---- */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  position: relative;
  overflow: hidden;
  padding: calc(var(--nav-height) + 60px) 0 80px;
}

.hero-grid {
  position: absolute;
  inset: 0;
  background-image: radial-gradient(var(--border-strong) 1px, transparent 1px);
  background-size: 22px 22px;
  mask-image: radial-gradient(ellipse at 30% 40%, #000 25%, transparent 75%);
  -webkit-mask-image: radial-gradient(ellipse at 30% 40%, #000 25%, transparent 75%);
  pointer-events: none;
  opacity: 0.55;
}

.hero-content {
  position: relative;
  z-index: 1;
  max-width: 760px;
}

.hero-meta {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: var(--text-muted);
  margin-bottom: 18px;
  display: flex;
  align-items: center;
  gap: 12px;
  flex-wrap: wrap;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-mono);
  font-size: 0.78rem;
  font-weight: 500;
  color: var(--accent);
  background: var(--accent-soft);
  padding: 4px 10px;
  border: 1px solid var(--accent-soft);
  border-radius: var(--radius-sm);
}

.hero-badge-dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 0 0 0 var(--accent-glow);
  animation: pulse-dot 2.2s ease-out infinite;
}

@keyframes pulse-dot {
  0% { box-shadow: 0 0 0 0 var(--accent-glow); }
  70% { box-shadow: 0 0 0 8px transparent; }
  100% { box-shadow: 0 0 0 0 transparent; }
}

.hero h1 {
  font-family: var(--font-mono);
  font-size: clamp(2.2rem, 5.5vw, 3.6rem);
  font-weight: 700;
  line-height: 1.15;
  margin-bottom: 16px;
  letter-spacing: -0.01em;
}

.hero h1 .hero-greeting {
  font-weight: 400;
  color: var(--text-secondary);
}

.hero h1 .hero-bracket {
  color: var(--syntax-keyword);
  font-weight: 500;
}

.hero h1 .hero-name {
  color: var(--accent);
}

.hero h1 .hero-cursor {
  display: inline-block;
  width: 0.45ch;
  height: 1em;
  background: var(--accent);
  vertical-align: -3px;
  margin-left: 4px;
  animation: blink 1s steps(1) infinite;
}

.hero-subtitle {
  font-size: clamp(1.05rem, 2vw, 1.25rem);
  font-weight: 500;
  color: var(--text-secondary);
  margin-bottom: 22px;
}

.hero-subtitle .hero-divider {
  color: var(--text-muted);
  margin: 0 8px;
}

.hero-description {
  position: relative;
  font-size: 1.02rem;
  color: var(--text-secondary);
  line-height: 1.75;
  margin-bottom: 36px;
  max-width: 620px;
  padding-left: 18px;
  border-left: 2px solid var(--border-strong);
}

.hero-description::before {
  content: "//";
  position: absolute;
  left: -22px;
  top: 0;
  color: var(--syntax-comment);
  font-family: var(--font-mono);
  font-size: 0.95rem;
  font-weight: 500;
}

.hero-description strong {
  color: var(--text);
  font-weight: 600;
}

.hero-actions {
  display: flex;
  gap: 12px;
  margin-bottom: 56px;
  flex-wrap: wrap;
}

.btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 11px 22px;
  border-radius: var(--radius-sm);
  font-family: var(--font-mono);
  font-size: 0.85rem;
  font-weight: 600;
  letter-spacing: 0.01em;
  transition: var(--transition);
  cursor: pointer;
  border: 1px solid transparent;
}

.btn-primary {
  background: var(--accent);
  color: var(--accent-text);
}

.btn-primary:hover {
  background: var(--accent-hover);
  transform: translateY(-1px);
}

.btn-secondary {
  background: transparent;
  color: var(--text);
  border-color: var(--border-strong);
}

.btn-secondary:hover {
  border-color: var(--accent);
  color: var(--accent);
  transform: translateY(-1px);
}

.hero-stats {
  display: flex;
  gap: 32px;
  flex-wrap: wrap;
}

.stat {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.stat-number {
  font-family: var(--font-mono);
  font-size: 1.05rem;
  font-weight: 600;
  color: var(--text);
}

.stat-number .stat-bracket {
  color: var(--text-muted);
  font-weight: 400;
}

.stat-number .stat-value {
  color: var(--accent);
}

.stat-label {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--text-muted);
  text-transform: lowercase;
  letter-spacing: 0.02em;
}

/* ---- Sections ---- */
.section {
  padding: 96px 0;
  position: relative;
}

.section-alt {
  background: var(--bg-alt);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}

.section-tag {
  display: block;
  font-family: var(--font-mono);
  font-size: 0.82rem;
  color: var(--syntax-comment);
  margin-bottom: 8px;
  letter-spacing: 0.02em;
}

.section-title {
  font-family: var(--font-mono);
  font-size: clamp(1.5rem, 3vw, 2rem);
  font-weight: 700;
  margin-bottom: 40px;
  letter-spacing: -0.01em;
  color: var(--text);
}

/* ---- About ---- */
.about-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
  align-items: start;
}

.about-text p {
  color: var(--text-secondary);
  margin-bottom: 16px;
  font-size: 1.02rem;
}

.about-text strong {
  color: var(--text);
  font-weight: 600;
}

.about-highlights {
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.highlight-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-left: 3px solid var(--accent);
  border-radius: var(--radius);
  padding: 22px 24px;
  transition: var(--transition);
}

.highlight-card:hover {
  border-color: var(--border-strong);
  border-left-color: var(--accent);
  background: var(--surface-2);
  transform: translateX(2px);
}

.highlight-icon {
  width: 36px;
  height: 36px;
  border-radius: var(--radius-sm);
  background: var(--accent-soft);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 12px;
  color: var(--accent);
}

.highlight-card h3 {
  font-family: var(--font-mono);
  font-size: 0.95rem;
  font-weight: 600;
  margin-bottom: 4px;
  color: var(--text);
}

.highlight-card p {
  font-size: 0.9rem;
  color: var(--text-muted);
  line-height: 1.6;
}

/* ---- Building (apps) ---- */
.building-subtitle,
.writing-subtitle {
  font-family: var(--font-mono);
  font-size: 0.92rem;
  color: var(--syntax-comment);
  max-width: 560px;
  margin: -28px 0 36px;
  line-height: 1.7;
}

.building-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(min(320px, 100%), 1fr));
  gap: 20px;
  max-width: 760px;
}

.app-card {
  display: flex;
  flex-direction: column;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  transition: var(--transition);
}

.app-card:hover {
  border-color: var(--border-strong);
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

.app-card-chrome {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 10px 14px;
  background: var(--surface-2);
  border-bottom: 1px solid var(--border);
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: var(--text-muted);
}

.app-card-body {
  display: flex;
  gap: 18px;
  padding: 22px;
}

.app-card-icon {
  flex-shrink: 0;
  width: 56px;
  height: 56px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.app-card-icon img {
  width: 100%;
  height: 100%;
  border-radius: 12px;
  object-fit: cover;
  image-rendering: pixelated;
  border: 1px solid var(--border);
}

.app-card-content {
  display: flex;
  flex-direction: column;
  gap: 6px;
  min-width: 0;
  flex: 1;
}

.app-card-title {
  font-family: var(--font-mono);
  font-size: 1.05rem;
  font-weight: 600;
  line-height: 1.3;
}

.app-card-title a {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  color: var(--text);
  transition: var(--transition);
}

.app-card-title a:hover {
  color: var(--accent);
}

.app-card-title-arrow {
  opacity: 0.4;
  transition: var(--transition);
}

.app-card:hover .app-card-title-arrow {
  opacity: 1;
  transform: translate(2px, -2px);
  color: var(--accent);
}

.app-card-tagline {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  font-weight: 500;
  color: var(--syntax-string);
  text-transform: lowercase;
  letter-spacing: 0.04em;
}

.app-card-description {
  font-size: 0.92rem;
  color: var(--text-secondary);
  line-height: 1.65;
  margin-bottom: 12px;
}

.app-card-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: auto;
}

.store-btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 7px 12px;
  border-radius: var(--radius-sm);
  background: var(--text);
  color: var(--bg);
  border: 1px solid var(--text);
  transition: var(--transition);
  text-decoration: none;
  line-height: 1.1;
  font-family: var(--font-mono);
}

.store-btn:hover {
  transform: translateY(-1px);
  background: var(--text);
  opacity: 0.92;
}

.store-btn-text {
  display: flex;
  flex-direction: column;
  text-align: left;
}

.store-btn-label {
  font-size: 0.6rem;
  opacity: 0.7;
  letter-spacing: 0.04em;
  text-transform: lowercase;
}

.store-btn-store {
  font-size: 0.85rem;
  font-weight: 600;
}

.store-btn--disabled {
  background: transparent;
  color: var(--text-muted);
  border: 1px dashed var(--border-strong);
  cursor: default;
}

.store-btn--disabled:hover {
  transform: none;
  opacity: 1;
  background: transparent;
}

/* ---- Experience timeline ---- */
.timeline {
  position: relative;
  counter-reset: line;
}

.timeline-item {
  position: relative;
  display: grid;
  grid-template-columns: 48px 1fr;
  gap: 16px;
  padding-bottom: 28px;
  counter-increment: line;
}

.timeline-item:not(:last-child)::after {
  content: '';
  position: absolute;
  left: 23px;
  top: 36px;
  bottom: 0;
  width: 1px;
  background: var(--border);
}

.timeline-marker {
  position: relative;
  display: flex;
  align-items: flex-start;
  justify-content: flex-end;
  padding-top: 28px;
  padding-right: 12px;
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: var(--text-muted);
  user-select: none;
}

.timeline-marker::before {
  content: counter(line, decimal-leading-zero);
}

.timeline-marker::after {
  content: '';
  position: absolute;
  right: -1px;
  top: 32px;
  width: 9px;
  height: 9px;
  border-radius: 50%;
  background: var(--bg);
  border: 2px solid var(--border-strong);
  transform: translateX(50%);
  z-index: 1;
  transition: var(--transition);
}

.timeline-item:first-child .timeline-marker::after {
  background: var(--accent);
  border-color: var(--accent);
  box-shadow: 0 0 0 4px var(--accent-soft);
}

.timeline-content {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  transition: var(--transition);
}

.timeline-content:hover {
  border-color: var(--border-strong);
  transform: translateY(-1px);
  box-shadow: var(--shadow-md);
}

.timeline-file {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 8px 16px;
  background: var(--surface-2);
  border-bottom: 1px solid var(--border);
  font-family: var(--font-mono);
  font-size: 0.74rem;
  color: var(--text-muted);
}

.timeline-file::before {
  content: "";
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--syntax-string);
  display: inline-block;
}

.timeline-body {
  padding: 22px 24px;
}

.timeline-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  margin-bottom: 14px;
  gap: 16px;
  flex-wrap: wrap;
}

.timeline-header h3 {
  font-size: 1.08rem;
  font-weight: 600;
  color: var(--text);
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 8px;
}

.role-badge {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 0.66rem;
  font-weight: 500;
  letter-spacing: 0.04em;
  text-transform: lowercase;
  color: var(--syntax-string);
  background: var(--syntax-string-soft);
  padding: 2px 8px;
  border-radius: var(--radius-sm);
}

.timeline-company {
  font-family: var(--font-mono);
  color: var(--accent);
  font-weight: 500;
  font-size: 0.85rem;
  margin-top: 2px;
}

.timeline-date {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: var(--text-muted);
  font-weight: 500;
  white-space: nowrap;
  flex-shrink: 0;
}

.timeline-date::before { content: "[ "; }
.timeline-date::after { content: " ]"; }

.timeline-content ul {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.timeline-content li {
  font-size: 0.92rem;
  color: var(--text-secondary);
  padding-left: 18px;
  position: relative;
  line-height: 1.65;
}

.timeline-content li::before {
  content: "›";
  position: absolute;
  left: 0;
  top: 0;
  color: var(--accent);
  font-family: var(--font-mono);
  font-weight: 700;
}

.timeline-roles {
  position: relative;
  padding-left: 16px;
  display: flex;
  flex-direction: column;
  gap: 22px;
  border-left: 1px solid var(--border);
}

.timeline-role {
  position: relative;
}

.timeline-role::before {
  content: "";
  position: absolute;
  left: -20px;
  top: 8px;
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--bg);
  border: 2px solid var(--border-strong);
}

.timeline-role:first-child::before {
  background: var(--accent);
  border-color: var(--accent);
}

.timeline-role-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  margin-bottom: 10px;
  gap: 12px;
  flex-wrap: wrap;
}

.timeline-role-header h4 {
  font-size: 0.98rem;
  font-weight: 600;
  color: var(--text);
}

.timeline-role-date {
  font-family: var(--font-mono);
  font-size: 0.74rem;
  color: var(--text-muted);
  font-weight: 500;
  white-space: nowrap;
}

.timeline-role-date::before { content: "[ "; }
.timeline-role-date::after { content: " ]"; }

/* ---- Skills ---- */
.skills-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 20px;
}

.skill-category {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 24px;
  transition: var(--transition);
}

.skill-category:hover {
  border-color: var(--border-strong);
  transform: translateY(-1px);
}

.skill-category-icon {
  width: 32px;
  height: 32px;
  border-radius: var(--radius-sm);
  background: var(--accent-soft);
  color: var(--accent);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 12px;
}

.skill-category h3 {
  font-family: var(--font-mono);
  font-size: 0.92rem;
  font-weight: 600;
  margin-bottom: 16px;
  color: var(--text);
  display: flex;
  align-items: center;
  gap: 8px;
}

.skill-category h3::before {
  content: ">";
  color: var(--accent);
  font-weight: 700;
}

.skill-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}

.skill-tag {
  display: inline-block;
  padding: 4px 10px;
  background: var(--bg-alt);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  font-family: var(--font-mono);
  font-size: 0.78rem;
  font-weight: 500;
  color: var(--text-secondary);
  transition: var(--transition);
  cursor: default;
}

.skill-tag:hover {
  border-color: var(--accent);
  color: var(--text);
}

.skill-tag.primary {
  background: var(--accent-soft);
  color: var(--accent);
  border-color: transparent;
  font-weight: 600;
}

.skill-tag .skill-tag-version {
  color: var(--syntax-string);
  font-weight: 400;
}

.skill-tag.primary .skill-tag-version {
  opacity: 0.85;
}

/* ---- Education ---- */
.education-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 16px;
}

.education-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 22px 24px;
  transition: var(--transition);
}

.education-card:hover {
  border-color: var(--border-strong);
  transform: translateY(-1px);
}

.education-card.certification {
  border-color: var(--accent);
  background: var(--accent-soft);
}

.education-icon {
  width: 36px;
  height: 36px;
  border-radius: var(--radius-sm);
  background: var(--accent-soft);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 12px;
  color: var(--accent);
}

.education-card.certification .education-icon {
  background: var(--surface);
}

.education-card h3 {
  font-family: var(--font-mono);
  font-size: 0.98rem;
  font-weight: 600;
  margin-bottom: 4px;
  color: var(--text);
}

.education-school {
  font-family: var(--font-mono);
  color: var(--accent);
  font-weight: 500;
  font-size: 0.85rem;
  margin-bottom: 4px;
}

.education-date {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: var(--text-muted);
}

/* ---- Writing ---- */
.writing-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(min(280px, 100%), 340px));
  gap: 16px;
  margin-bottom: 32px;
}

.writing-card {
  display: flex;
  flex-direction: column;
  gap: 10px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 22px;
  color: inherit;
  transition: var(--transition);
}

.writing-card:hover {
  border-color: var(--border-strong);
  transform: translateY(-1px);
  box-shadow: var(--shadow-md);
}

.writing-card-title {
  font-size: 1rem;
  font-weight: 600;
  line-height: 1.4;
  color: var(--text);
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
  transition: var(--transition);
}

.writing-card:hover .writing-card-title {
  color: var(--accent);
}

.writing-card-excerpt {
  font-size: 0.88rem;
  color: var(--text-secondary);
  line-height: 1.6;
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
  flex-grow: 1;
}

.writing-card-meta {
  display: flex;
  align-items: center;
  gap: 6px;
  font-family: var(--font-mono);
  font-size: 0.74rem;
  color: var(--text-muted);
}

.writing-card-meta::before {
  content: "//";
  color: var(--syntax-comment);
  margin-right: 2px;
}

.writing-card-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-top: 4px;
}

.writing-card-tag {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  font-weight: 500;
  color: var(--accent);
  background: var(--accent-soft);
  padding: 2px 8px;
  border-radius: var(--radius-sm);
}

.writing-card-tag::before { content: "#"; }

.writing-card-skeleton {
  height: 200px;
  border-radius: var(--radius);
  background: var(--bg-alt);
  border: 1px solid var(--border);
  position: relative;
  overflow: hidden;
}

.writing-card-skeleton::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(
    90deg,
    transparent 30%,
    var(--surface-2) 50%,
    transparent 70%
  );
  background-size: 200% 100%;
  animation: shimmer 1.6s ease-in-out infinite;
}

@keyframes shimmer {
  0% { background-position: 200% 0; }
  100% { background-position: -200% 0; }
}

.writing-cta {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 9px 16px;
  border-radius: var(--radius-sm);
  background: transparent;
  border: 1px solid var(--border-strong);
  color: var(--text);
  font-family: var(--font-mono);
  font-weight: 500;
  font-size: 0.85rem;
  transition: var(--transition);
}

.writing-cta:hover {
  background: var(--accent);
  color: var(--accent-text);
  border-color: var(--accent);
}

.writing-cta svg {
  transition: transform var(--transition);
}

.writing-cta:hover svg {
  transform: translateX(3px);
}

/* ---- Contact (terminal output style) ---- */
.section-contact {
  background: var(--bg);
  text-align: left;
  padding: 96px 0;
}

.section-contact .section-tag,
.section-contact .section-title {
  /* inherit normal styling */
}

.contact-prompt {
  font-family: var(--font-mono);
  font-size: 0.92rem;
  color: var(--text-secondary);
  margin-bottom: 28px;
  line-height: 1.7;
}

.contact-prompt-line {
  color: var(--text);
}

.contact-prompt-line::before {
  content: "$ ";
  color: var(--accent);
  font-weight: 700;
}

.contact-prompt-output {
  color: var(--syntax-comment);
  margin-top: 6px;
  display: block;
  padding-left: 14px;
}

.contact-links {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(min(260px, 100%), 1fr));
  gap: 12px;
  max-width: 720px;
}

.contact-card {
  display: flex;
  align-items: center;
  gap: 14px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-left: 3px solid transparent;
  border-radius: var(--radius);
  padding: 16px 20px;
  color: var(--text);
  transition: var(--transition);
  font-family: var(--font-mono);
  font-weight: 500;
  font-size: 0.92rem;
}

.contact-card:hover {
  border-color: var(--border-strong);
  border-left-color: var(--accent);
  background: var(--surface-2);
  transform: translateX(2px);
}

.contact-card svg {
  color: var(--accent);
  flex-shrink: 0;
}

/* ---- Footer (status-bar) ---- */
.footer {
  background: var(--bg-alt);
  border-top: 1px solid var(--border);
  padding: 12px 0;
}

.footer .container {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
  flex-wrap: wrap;
}

.footer-left,
.footer-right {
  display: flex;
  align-items: center;
  gap: 16px;
  font-family: var(--font-mono);
  font-size: 0.74rem;
  color: var(--text-muted);
}

.footer-status {
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

.footer-status::before {
  content: "";
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--accent);
  display: inline-block;
}

.footer-divider {
  color: var(--border-strong);
}

/* ---- Animations ---- */
@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(16px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.fade-in {
  opacity: 0;
  transform: translateY(16px);
  transition: opacity 0.5s ease, transform 0.5s ease;
}

.fade-in.visible {
  opacity: 1;
  transform: translateY(0);
}

/* ---- Responsive ---- */
@media (max-width: 768px) {
  .nav-links {
    display: none;
  }

  .nav-toggle {
    display: flex;
  }

  .theme-toggle .theme-toggle-label {
    display: none;
  }

  .hero {
    padding: calc(var(--nav-height) + 40px) 0 60px;
    min-height: auto;
  }

  .hero-stats {
    gap: 24px;
  }

  .about-grid,
  .skills-grid,
  .education-grid {
    grid-template-columns: 1fr;
  }

  .timeline-item {
    grid-template-columns: 36px 1fr;
    gap: 8px;
  }

  .timeline-item:not(:last-child)::after {
    left: 17px;
  }

  .timeline-marker {
    padding-right: 8px;
    font-size: 0.7rem;
  }

  .timeline-header {
    flex-direction: column;
    gap: 6px;
  }

  .section {
    padding: 64px 0;
  }

  .section-contact {
    padding: 64px 0;
  }

  .footer .container {
    justify-content: center;
    text-align: center;
  }
}

@media (max-width: 480px) {
  .hero h1 {
    font-size: 1.85rem;
  }

  .hero-description {
    font-size: 0.95rem;
  }

  .hero-actions {
    flex-direction: column;
    align-items: stretch;
  }

  .btn {
    text-align: center;
    justify-content: center;
  }

  .app-card-body {
    flex-direction: column;
    gap: 14px;
  }

  .nav-logo .nav-logo-prompt-host {
    display: none;
  }
}