/* ===== Design Tokens ===== */
:root {
  --bg: #060a11;
  --bg-elevated: #0b111a;
  --bg-card: #0f1620;
  --bg-card-hover: #131c28;
  --border: #1a2433;
  --border-hover: #2a3a50;
  --text: #e8eef7;
  --text-muted: #8b9cb3;
  --text-dim: #5c6d85;
  --accent: #00e5a8;
  --accent-hover: #00f5b8;
  --accent-dim: rgba(0, 229, 168, 0.12);
  --accent-glow: rgba(0, 229, 168, 0.28);
  --cyan: #00c2ff;
  --cyan-dim: rgba(0, 194, 255, 0.12);
  --prompt: #00e5a8;
  --danger: #ff5c5c;
  --warning: #ffc14d;
  --radius: 14px;
  --radius-sm: 9px;
  --radius-xs: 6px;
  --font-sans: 'Inter', system-ui, -apple-system, sans-serif;
  --font-mono: 'JetBrains Mono', ui-monospace, monospace;
  --header-h: 68px;
  --ease: cubic-bezier(0.22, 1, 0.36, 1);
  --transition: 0.22s var(--ease);

  /* Glass tokens */
  --glass-bg: rgba(12, 20, 32, 0.55);
  --glass-bg-strong: rgba(10, 16, 26, 0.72);
  --glass-border: rgba(255, 255, 255, 0.09);
  --glass-border-hover: rgba(0, 229, 168, 0.22);
  --glass-highlight: rgba(255, 255, 255, 0.06);
  --glass-shadow: 0 8px 32px rgba(0, 0, 0, 0.35);
  --glass-blur: blur(16px) saturate(150%);
}

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

html {
  scroll-behavior: smooth;
  scroll-padding-top: var(--header-h);
}

body {
  font-family: var(--font-sans);
  background: var(--bg);
  color: var(--text);
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

a { color: inherit; text-decoration: none; }
ul { list-style: none; }
img { max-width: 100%; display: block; }

.container {
  width: min(1120px, 92%);
  margin-inline: auto;
}

.mono { font-family: var(--font-mono); }

/* ===== CSS Background ===== */
.bg-layers {
  position: fixed;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  overflow: hidden;
}

.bg-gradient {
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse 80% 50% at 50% -10%, rgba(0, 229, 168, 0.07), transparent 55%),
    radial-gradient(ellipse 60% 40% at 90% 60%, rgba(0, 194, 255, 0.04), transparent 50%),
    radial-gradient(ellipse 50% 35% at 10% 80%, rgba(0, 229, 168, 0.035), transparent 50%),
    var(--bg);
}

.bg-grid {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(0, 229, 168, 0.035) 1px, transparent 1px),
    linear-gradient(90deg, rgba(0, 229, 168, 0.035) 1px, transparent 1px);
  background-size: 64px 64px;
  mask-image: radial-gradient(ellipse 85% 70% at 50% 30%, black 10%, transparent 72%);
  -webkit-mask-image: radial-gradient(ellipse 85% 70% at 50% 30%, black 10%, transparent 72%);
  opacity: 0.9;
}

.bg-glow {
  position: absolute;
  border-radius: 50%;
  filter: blur(80px);
  opacity: 0.5;
}

.bg-glow-1 {
  width: 520px;
  height: 520px;
  top: -8%;
  left: 50%;
  transform: translateX(-50%);
  background: rgba(0, 229, 168, 0.12);
}

.bg-glow-2 {
  width: 380px;
  height: 380px;
  bottom: 15%;
  right: -5%;
  background: rgba(0, 194, 255, 0.08);
}

/* ===== Header ===== */
.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: var(--header-h);
  background: var(--glass-bg-strong);
  -webkit-backdrop-filter: var(--glass-blur);
  backdrop-filter: var(--glass-blur);
  border-bottom: 1px solid var(--glass-border);
  box-shadow: inset 0 1px 0 var(--glass-highlight);
  z-index: 100;
  transition: background var(--transition), border-color var(--transition);
}

.nav-container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
}

.logo {
  display: flex;
  align-items: center;
  line-height: 0;
  transition: opacity var(--transition), transform var(--transition);
}

.logo:hover {
  opacity: 0.88;
  transform: scale(1.04);
}

.logo-img {
  width: 40px;
  height: 40px;
  display: block;
  border-radius: 10px;
  object-fit: cover;
}

.nav {
  display: flex;
  gap: 2rem;
}

.nav-link {
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--text-muted);
  transition: color var(--transition);
  position: relative;
  padding: 0.25rem 0;
}

.nav-link:hover,
.nav-link.active { color: var(--accent); }

.nav-link::after {
  content: '';
  position: absolute;
  left: 0;
  bottom: -2px;
  width: 0;
  height: 1.5px;
  background: var(--accent);
  transition: width 0.25s var(--ease);
}

.nav-link:hover::after,
.nav-link.active::after { width: 100%; }

.menu-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 6px;
}

.menu-toggle span {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--text);
  border-radius: 1px;
  transition: var(--transition);
}

/* ===== Hero ===== */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  padding: calc(var(--header-h) + 4rem) 0 5rem;
  z-index: 1;
}

.hero-content {
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  gap: 4rem;
  align-items: center;
}

.hero-greeting {
  font-size: 0.92rem;
  color: var(--text-muted);
  margin-bottom: 0.9rem;
  letter-spacing: 0.02em;
}

.prompt {
  color: var(--prompt);
  margin-right: 0.4rem;
}

.hero-name {
  font-size: clamp(2.6rem, 5.5vw, 3.6rem);
  font-weight: 700;
  letter-spacing: -0.035em;
  line-height: 1.1;
  margin-bottom: 0.55rem;
}

.hero-title {
  font-size: 1.2rem;
  font-weight: 500;
  color: var(--accent);
  margin-bottom: 1.35rem;
  letter-spacing: -0.01em;
}

.hero-subtitle {
  font-size: 1.08rem;
  color: var(--text-muted);
  max-width: 38ch;
  margin-bottom: 2.1rem;
  line-height: 1.7;
}

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

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.9rem;
  margin-bottom: 1.75rem;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.78rem 1.45rem;
  font-size: 0.95rem;
  font-weight: 600;
  border-radius: var(--radius-sm);
  transition: all 0.25s var(--ease);
  border: 1px solid transparent;
}

.btn-primary {
  background: var(--accent);
  color: #03140f;
}

.btn-primary:hover {
  background: var(--accent-hover);
  box-shadow: 0 0 28px var(--accent-glow);
  transform: translateY(-1px);
}

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

.btn-secondary:hover {
  border-color: var(--accent);
  color: var(--accent);
  background: var(--accent-dim);
}

.hero-meta {
  display: inline-flex;
  align-items: center;
  gap: 0.55rem;
  font-size: 0.82rem;
  color: var(--text-dim);
}

.status-dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-dim);
  animation: pulse 2.2s ease-in-out infinite;
}

@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.55; }
}

/* Terminal */
.terminal-window {
  background: var(--glass-bg);
  -webkit-backdrop-filter: var(--glass-blur);
  backdrop-filter: var(--glass-blur);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow:
    var(--glass-shadow),
    inset 0 1px 0 var(--glass-highlight),
    0 0 40px rgba(0, 229, 168, 0.05);
}

.terminal-header {
  display: flex;
  align-items: center;
  gap: 0.7rem;
  padding: 0.75rem 1.1rem;
  background: rgba(8, 14, 22, 0.6);
  border-bottom: 1px solid var(--glass-border);
}

.terminal-dots {
  display: flex;
  gap: 0.4rem;
}

.dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
}

.dot.red { background: #ff5f57; }
.dot.yellow { background: #febc2e; }
.dot.green { background: #28c840; }

.terminal-title {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: var(--text-dim);
}

.terminal-body {
  padding: 1.35rem 1.4rem 1.5rem;
  font-family: var(--font-mono);
  font-size: 0.88rem;
  line-height: 1.75;
}

.term-line {
  color: var(--text);
  margin-bottom: 0.15rem;
}

.term-output {
  color: var(--text-muted);
  padding-left: 1.15rem;
  margin-bottom: 0.65rem;
}

.cursor {
  animation: blink 1.05s step-end infinite;
  color: var(--accent);
}

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

/* ===== Sections ===== */
.section {
  position: relative;
  padding: 6rem 0;
  z-index: 1;
}

.section-header {
  margin-bottom: 2.9rem;
}

.section-tag {
  display: inline-block;
  font-size: 0.82rem;
  color: var(--accent);
  margin-bottom: 0.55rem;
  letter-spacing: 0.02em;
}

.section-title {
  font-size: clamp(1.8rem, 3.6vw, 2.25rem);
  font-weight: 700;
  letter-spacing: -0.025em;
}

.section-lead {
  margin-top: 0.8rem;
  color: var(--text-muted);
  max-width: 48ch;
  font-size: 1.02rem;
}

/* ===== About ===== */
.about-grid {
  display: grid;
  grid-template-columns: 1.25fr 0.85fr;
  gap: 3.25rem;
  align-items: start;
}

.about-content .lead {
  font-size: 1.15rem;
  color: var(--text);
  margin-bottom: 1.2rem;
  line-height: 1.7;
}

.about-content p {
  color: var(--text-muted);
  margin-bottom: 1.1rem;
  font-size: 1.02rem;
}

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

.about-cards {
  display: flex;
  flex-direction: column;
  gap: 0.9rem;
}

.info-card {
  display: flex;
  gap: 1rem;
  background: var(--glass-bg);
  -webkit-backdrop-filter: var(--glass-blur);
  backdrop-filter: var(--glass-blur);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius);
  padding: 1.2rem 1.3rem;
  box-shadow: inset 0 1px 0 var(--glass-highlight);
  transition: border-color var(--transition), transform var(--transition), box-shadow var(--transition);
}

.info-card:hover {
  border-color: var(--glass-border-hover);
  transform: translateY(-2px);
  box-shadow:
    inset 0 1px 0 var(--glass-highlight),
    0 8px 24px rgba(0, 0, 0, 0.25);
}

.info-icon {
  flex-shrink: 0;
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--accent-dim);
  color: var(--accent);
  border-radius: 10px;
}

.info-card h3 {
  font-size: 0.98rem;
  font-weight: 600;
  margin-bottom: 0.25rem;
}

.info-card p {
  font-size: 0.88rem;
  color: var(--text-muted);
  line-height: 1.5;
}

/* ===== Skills ===== */
.skills-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1.25rem;
}

.skill-group {
  background: var(--glass-bg);
  -webkit-backdrop-filter: var(--glass-blur);
  backdrop-filter: var(--glass-blur);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius);
  padding: 1.5rem 1.55rem;
  box-shadow: inset 0 1px 0 var(--glass-highlight);
  transition: border-color var(--transition), box-shadow var(--transition);
}

.skill-group:hover {
  border-color: var(--glass-border-hover);
  box-shadow:
    inset 0 1px 0 var(--glass-highlight),
    0 8px 24px rgba(0, 0, 0, 0.2);
}

.skill-group-title {
  font-size: 0.8rem;
  font-weight: 500;
  color: var(--accent);
  margin-bottom: 1rem;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.skill-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.skill-tags span {
  font-size: 0.84rem;
  padding: 0.35rem 0.7rem;
  background: rgba(255,255,255,0.03);
  border: 1px solid var(--border);
  border-radius: var(--radius-xs);
  color: var(--text-muted);
  transition: all var(--transition);
}

.skill-group:hover .skill-tags span {
  border-color: rgba(0, 229, 168, 0.2);
  color: var(--text);
}

/* ===== Education ===== */
.timeline {
  position: relative;
  padding-left: 1.9rem;
}

.timeline::before {
  content: '';
  position: absolute;
  left: 6px;
  top: 10px;
  bottom: 10px;
  width: 2px;
  background: linear-gradient(to bottom, var(--accent), var(--border));
  border-radius: 1px;
}

.timeline-item {
  position: relative;
  padding-bottom: 2.4rem;
}

.timeline-item:last-child { padding-bottom: 0; }

.timeline-marker {
  position: absolute;
  left: -1.9rem;
  top: 8px;
  width: 14px;
  height: 14px;
  border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 0 0 4px var(--accent-dim);
}

.timeline-marker.muted {
  background: var(--text-dim);
  box-shadow: 0 0 0 4px rgba(92, 109, 133, 0.2);
}

.timeline-content {
  background: var(--glass-bg);
  -webkit-backdrop-filter: var(--glass-blur);
  backdrop-filter: var(--glass-blur);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius);
  padding: 1.55rem 1.7rem;
  box-shadow: inset 0 1px 0 var(--glass-highlight);
  transition: border-color var(--transition), box-shadow var(--transition);
}

.timeline-content:hover {
  border-color: var(--glass-border-hover);
  box-shadow:
    inset 0 1px 0 var(--glass-highlight),
    0 8px 24px rgba(0, 0, 0, 0.22);
}

.timeline-header {
  display: flex;
  align-items: center;
  gap: 0.8rem;
  margin-bottom: 0.3rem;
}

.timeline-header h3 {
  font-size: 1.15rem;
  font-weight: 600;
}

.timeline-badge {
  font-size: 0.72rem;
  font-weight: 600;
  padding: 0.2rem 0.6rem;
  border-radius: 999px;
  background: var(--accent-dim);
  color: var(--accent);
  font-family: var(--font-mono);
  letter-spacing: 0.02em;
}

.timeline-badge-done {
  background: rgba(0, 194, 255, 0.12);
  color: var(--cyan);
}

.timeline-org {
  font-size: 0.95rem;
  color: var(--cyan);
  margin-bottom: 0.8rem;
  font-weight: 500;
}

.timeline-desc {
  color: var(--text-muted);
  font-size: 0.98rem;
  margin-bottom: 1.1rem;
  line-height: 1.65;
}

.muted-text {
  color: var(--text-dim);
  font-style: italic;
}

.timeline-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
}

.timeline-tags li {
  font-size: 0.78rem;
  font-family: var(--font-mono);
  padding: 0.28rem 0.65rem;
  background: var(--cyan-dim);
  color: var(--cyan);
  border-radius: 6px;
}

/* ===== Projects ===== */
.projects-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1.3rem;
}

.project-card {
  background: var(--glass-bg);
  -webkit-backdrop-filter: var(--glass-blur);
  backdrop-filter: var(--glass-blur);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius);
  padding: 1.55rem;
  box-shadow: inset 0 1px 0 var(--glass-highlight);
  transition: border-color var(--transition), transform var(--transition), box-shadow var(--transition);
  display: flex;
  flex-direction: column;
}

.project-card:hover {
  border-color: var(--glass-border-hover);
  transform: translateY(-4px);
  box-shadow:
    inset 0 1px 0 var(--glass-highlight),
    0 16px 40px rgba(0, 0, 0, 0.35),
    0 0 24px rgba(0, 229, 168, 0.06);
}

.project-meta {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 0.9rem;
}

.project-id {
  font-size: 0.75rem;
  font-weight: 500;
  color: var(--accent);
  letter-spacing: 0.04em;
}

.project-status {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  font-size: 0.72rem;
  font-family: var(--font-mono);
  color: var(--text-muted);
  letter-spacing: 0.01em;
}

.status-dot-sm {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 0 6px var(--accent-glow);
  flex-shrink: 0;
}

.project-header {
  margin-bottom: 0.7rem;
}

.project-title {
  font-size: 1.15rem;
  font-weight: 600;
  letter-spacing: -0.015em;
  line-height: 1.3;
}

.project-desc {
  font-size: 0.92rem;
  color: var(--text-muted);
  line-height: 1.6;
  margin-bottom: 1rem;
  flex-grow: 1;
}

.project-result {
  font-size: 0.88rem;
  color: var(--text-muted);
  line-height: 1.55;
  padding: 0.65rem 0.85rem;
  margin-bottom: 1.15rem;
  border-left: 2px solid #e8a54b;
  background: rgba(232, 165, 75, 0.06);
  border-radius: 0 8px 8px 0;
}

.result-label {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: #e8a54b;
  margin-right: 0.35rem;
}

.project-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
  margin-top: auto;
}

.project-tags span {
  font-size: 0.74rem;
  font-family: var(--font-mono);
  padding: 0.28rem 0.6rem;
  background: rgba(255, 255, 255, 0.04);
  color: var(--text-muted);
  border-radius: 999px;
  border: 1px solid rgba(255, 255, 255, 0.08);
}

.projects-note {
  margin-top: 1.9rem;
  font-size: 0.84rem;
  color: var(--text-dim);
}

/* ===== Contact ===== */
.contact-card {
  background: var(--glass-bg);
  -webkit-backdrop-filter: var(--glass-blur);
  backdrop-filter: var(--glass-blur);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius);
  padding: 2.1rem 2.3rem;
  max-width: 620px;
  box-shadow:
    inset 0 1px 0 var(--glass-highlight),
    var(--glass-shadow);
}

.contact-text {
  color: var(--text-muted);
  margin-bottom: 1.6rem;
  font-size: 1.05rem;
  line-height: 1.65;
}

.contact-links {
  display: flex;
  flex-direction: column;
  gap: 0.7rem;
  margin-bottom: 1.35rem;
}

.contact-link {
  display: inline-flex;
  align-items: center;
  gap: 0.85rem;
  padding: 0.8rem 1.1rem;
  background: rgba(8, 14, 22, 0.5);
  -webkit-backdrop-filter: blur(8px);
  backdrop-filter: blur(8px);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-sm);
  font-size: 0.95rem;
  transition: all var(--transition);
}

.contact-link:hover {
  border-color: var(--accent);
  color: var(--accent);
  background: var(--accent-dim);
}

.contact-icon {
  display: flex;
  color: var(--accent);
}

.contact-hint {
  font-size: 0.78rem;
  color: var(--text-dim);
}

/* ===== Footer ===== */
.footer {
  border-top: 1px solid var(--border);
  padding: 1.9rem 0;
  position: relative;
  z-index: 1;
}

.footer-content {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 0.7rem;
  font-size: 0.85rem;
  color: var(--text-dim);
}

/* ===== Responsive ===== */
@media (max-width: 960px) {
  .hero-content {
    grid-template-columns: 1fr;
    gap: 3rem;
  }

  .hero-visual {
    order: -1;
    max-width: 440px;
  }

  .about-grid {
    grid-template-columns: 1fr;
    gap: 2.2rem;
  }

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

@media (max-width: 720px) {
  .nav {
    display: none;
    position: absolute;
    top: var(--header-h);
    left: 0;
    right: 0;
    background: rgba(11, 17, 26, 0.97);
    backdrop-filter: blur(16px);
    border-bottom: 1px solid var(--border);
    flex-direction: column;
    padding: 1.4rem 1.6rem 1.6rem;
    gap: 0.3rem;
  }

  .nav.open { display: flex; }

  .nav-link {
    padding: 0.65rem 0;
    font-size: 1rem;
  }

  .menu-toggle { display: flex; }

  .hero {
    padding-top: calc(var(--header-h) + 2.5rem);
    padding-bottom: 3.5rem;
  }

  .section { padding: 4.5rem 0; }

  .contact-card { padding: 1.6rem; }
}

@media (max-width: 480px) {
  .hero-actions { flex-direction: column; }
  .btn { width: 100%; }
}

/* ===== Entrance animations ===== */
@keyframes fadeUp {
  from {
    opacity: 0;
    transform: translateY(22px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes fadeIn {
  from { opacity: 0; }
  to { opacity: 1; }
}

.hero-greeting {
  animation: fadeUp 0.7s var(--ease) both;
}

.hero-name {
  animation: fadeUp 0.75s var(--ease) 0.08s both;
}

.hero-title {
  animation: fadeUp 0.75s var(--ease) 0.16s both;
}

.hero-subtitle {
  animation: fadeUp 0.75s var(--ease) 0.24s both;
}

.hero-actions {
  animation: fadeUp 0.75s var(--ease) 0.32s both;
}

.hero-meta {
  animation: fadeUp 0.75s var(--ease) 0.4s both;
}

.hero-visual {
  animation: fadeIn 1s var(--ease) 0.2s both;
}

.terminal-window {
  transition: transform 0.4s var(--ease), box-shadow 0.4s var(--ease), border-color 0.3s ease;
}

.terminal-window:hover {
  transform: translateY(-4px);
  border-color: var(--glass-border-hover);
  box-shadow:
    inset 0 1px 0 var(--glass-highlight),
    0 28px 60px rgba(0, 0, 0, 0.5),
    0 0 50px rgba(0, 229, 168, 0.08);
}

/* Subtle section reveal support */
.section-header,
.about-content,
.about-cards,
.skills-grid,
.timeline,
.projects-grid,
.contact-card {
  animation: fadeUp 0.8s var(--ease) both;
}

@media (prefers-reduced-motion: reduce) {
  .hero-greeting,
  .hero-name,
  .hero-title,
  .hero-subtitle,
  .hero-actions,
  .hero-meta,
  .hero-visual,
  .section-header,
  .about-content,
  .about-cards,
  .skills-grid,
  .timeline,
  .projects-grid,
  .contact-card {
    animation: none !important;
  }
}

/* ===== Glass fallbacks ===== */
@media (prefers-reduced-transparency: reduce) {
  .header,
  .terminal-window,
  .info-card,
  .skill-group,
  .timeline-content,
  .project-card,
  .contact-card,
  .contact-link {
    background: var(--bg-card);
    -webkit-backdrop-filter: none;
    backdrop-filter: none;
  }
}

@supports not ((backdrop-filter: blur(1px)) or (-webkit-backdrop-filter: blur(1px))) {
  .header,
  .terminal-window,
  .info-card,
  .skill-group,
  .timeline-content,
  .project-card,
  .contact-card {
    background: var(--bg-card);
  }
}

/* ===== Blog listing ===== */
.blog-page {
  padding-top: calc(var(--header-h) + 3rem);
}

.blog-list {
  display: flex;
  flex-direction: column;
  gap: 1.1rem;
  max-width: 720px;
}

.blog-card {
  display: block;
  background: var(--glass-bg);
  -webkit-backdrop-filter: var(--glass-blur);
  backdrop-filter: var(--glass-blur);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius);
  padding: 1.4rem 1.5rem;
  box-shadow: inset 0 1px 0 var(--glass-highlight);
  transition: border-color var(--transition), transform var(--transition), box-shadow var(--transition);
}

.blog-card:hover {
  border-color: var(--glass-border-hover);
  transform: translateY(-2px);
  box-shadow:
    inset 0 1px 0 var(--glass-highlight),
    0 12px 32px rgba(0, 0, 0, 0.28);
}

.blog-card-meta {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  margin-bottom: 0.65rem;
  font-size: 0.78rem;
  color: var(--text-dim);
}

.blog-tag {
  font-size: 0.7rem;
  font-weight: 500;
  padding: 0.15rem 0.5rem;
  border-radius: 999px;
  background: var(--accent-dim);
  color: var(--accent);
  letter-spacing: 0.02em;
}

.blog-card-title {
  font-size: 1.15rem;
  font-weight: 600;
  letter-spacing: -0.015em;
  margin-bottom: 0.45rem;
  color: var(--text);
}

.blog-card-excerpt {
  font-size: 0.94rem;
  color: var(--text-muted);
  line-height: 1.6;
  margin-bottom: 0.85rem;
}

.blog-card-link {
  font-size: 0.8rem;
  color: var(--accent);
}

/* ===== Single post ===== */
.post-page {
  padding-top: calc(var(--header-h) + 2.5rem);
}

.post-container {
  max-width: 680px;
}

.post-back {
  display: inline-block;
  font-size: 0.85rem;
  color: var(--text-muted);
  margin-bottom: 1.75rem;
  transition: color var(--transition);
}

.post-back:hover {
  color: var(--accent);
}

.post-header {
  margin-bottom: 2rem;
  padding-bottom: 1.5rem;
  border-bottom: 1px solid var(--glass-border);
}

.post-meta {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  margin-bottom: 0.85rem;
  font-size: 0.8rem;
  color: var(--text-dim);
}

.post-title {
  font-size: clamp(1.6rem, 4vw, 2.1rem);
  font-weight: 700;
  letter-spacing: -0.03em;
  line-height: 1.2;
  margin-bottom: 0.65rem;
}

.post-subtitle {
  font-size: 1.05rem;
  color: var(--text-muted);
  line-height: 1.55;
}

.post-body {
  font-size: 1.02rem;
  line-height: 1.75;
  color: var(--text);
}

.post-body p {
  margin-bottom: 1.15rem;
  color: var(--text-muted);
}

.post-body h2 {
  font-size: 1.2rem;
  font-weight: 600;
  margin: 2rem 0 0.75rem;
  color: var(--text);
  letter-spacing: -0.015em;
}

.post-body ul {
  margin: 0 0 1.25rem 1.2rem;
  list-style: disc;
  color: var(--text-muted);
}

.post-body li {
  margin-bottom: 0.4rem;
  line-height: 1.6;
}

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

.post-note {
  margin-top: 2.5rem;
  padding-top: 1.25rem;
  border-top: 1px solid var(--glass-border);
  font-size: 0.85rem;
  color: var(--text-dim);
}

.nav-link.active {
  color: var(--accent);
}

@media (max-width: 640px) {
  .blog-card {
    padding: 1.2rem 1.25rem;
  }

  .post-title {
    font-size: 1.45rem;
  }
}

/* ===== Admin ===== */
.admin-wrap {
  max-width: 720px;
}

.admin-card {
  background: var(--glass-bg);
  -webkit-backdrop-filter: var(--glass-blur);
  backdrop-filter: var(--glass-blur);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius);
  padding: 1.5rem 1.6rem;
  box-shadow: inset 0 1px 0 var(--glass-highlight);
}

.admin-form {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.admin-label {
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
  font-size: 0.88rem;
  font-weight: 500;
  color: var(--text-muted);
}

.admin-input {
  font: inherit;
  font-size: 0.98rem;
  color: var(--text);
  background: rgba(0, 0, 0, 0.35);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-sm);
  padding: 0.7rem 0.85rem;
  outline: none;
  transition: border-color var(--transition);
}

.admin-input:focus {
  border-color: var(--accent);
}

.admin-textarea {
  resize: vertical;
  line-height: 1.55;
}

.admin-body {
  font-family: var(--font-mono);
  font-size: 0.9rem;
  min-height: 220px;
}

.admin-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
}

.admin-help {
  color: var(--text-muted);
  margin-bottom: 1.25rem;
}

.admin-hint {
  font-size: 0.8rem;
  color: var(--text-dim);
}

.admin-error {
  color: var(--danger);
  font-size: 0.9rem;
}

.admin-toolbar {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  margin-bottom: 1.25rem;
}

.admin-toolbar-actions {
  display: flex;
  gap: 0.6rem;
}

.admin-actions {
  display: flex;
  align-items: center;
  gap: 1rem;
  flex-wrap: wrap;
}

.admin-status {
  font-size: 0.9rem;
  color: var(--accent);
}

.admin-subheading {
  font-size: 1.05rem;
  margin-bottom: 1rem;
}

.admin-post-list {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.admin-post-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 0.75rem 0;
  border-bottom: 1px solid var(--glass-border);
}

.admin-post-row:last-child {
  border-bottom: none;
}

.admin-post-row a {
  color: var(--text);
  font-weight: 500;
}

.admin-post-row a:hover {
  color: var(--accent);
}

.btn-small {
  padding: 0.4rem 0.75rem;
  font-size: 0.82rem;
}

.blog-empty {
  color: var(--text-muted);
}

@media (max-width: 640px) {
  .admin-row {
    grid-template-columns: 1fr;
  }
}