/* Terminal / TUI portfolio — dark high contrast */

:root {
  --bg-deep: #050508;
  --bg-panel: #0c0e12;
  --bg-elevated: #12151c;
  --border: #2a3140;
  --border-bright: #4a5568;
  --text: #f0f4fc;
  --text-dim: #8b95a8;
  --accent: #00e676;
  --accent-dim: #00b359;

  --info-bg: #0a1628;
  --info-border: #3b82f6;
  --info-text: #93c5fd;

  --warn-bg: #1c1708;
  --warn-border: #eab308;
  --warn-text: #fde047;

  --danger-bg: #1a0a0a;
  --danger-border: #ef4444;
  --danger-text: #fca5a5;
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
}

.tui-build-banner {
  margin: 0;
  padding: 0.55rem 1rem;
  background: #eab308;
  color: #1a1508;
  font-size: 0.8125rem;
  font-weight: 600;
  text-align: center;
  line-height: 1.45;
  border-bottom: 1px solid rgba(0, 0, 0, 0.12);
}

body {
  margin: 0;
  min-height: 100vh;
  font-family: "JetBrains Mono", "IBM Plex Mono", "SF Mono", Consolas, monospace;
  background-color: var(--bg-deep);
  background-image: repeating-linear-gradient(0deg, transparent, transparent 2px, rgba(0, 0, 255, 0.12) 2px, rgba(0, 0, 0, 0.12) 4px);
  color: var(--text);
  line-height: 1.65;
}

a {
  color: var(--accent);
  text-decoration: none;
}

a:hover,
a:focus-visible {
  text-decoration: underline;
}

.tui-shell {
  max-width: 56rem;
  margin: 1.5rem auto;
  padding: 0 1rem 2rem;
}

/* ══════════════════════════════════════════
   Navigation
   ══════════════════════════════════════════ */

.tui-shell > header {
  position: sticky;
  top: 0;
  z-index: 100;
}

.tui-nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.8rem;
  margin-top: 0.6rem;
  padding: 0.55rem 0.7rem;
  border: 1px solid var(--border);
  border-left: 3px solid var(--accent);
  background: linear-gradient(180deg, var(--bg-elevated) 0%, var(--bg-panel) 100%);
  box-shadow: 0 8px 20px rgba(0, 0, 0, 0.35), inset 0 1px 0 rgba(255, 255, 255, 0.03);
}

.tui-logo-link,
.tui-logo-link:hover,
.tui-logo-link:focus-visible {
  text-decoration: none;
}

.tui-logo-link:hover .tui-logo,
.tui-logo-link:focus-visible .tui-logo {
  border-color: var(--accent);
}

.tui-logo {
  margin: 0;
  padding: 0.25rem 0.45rem;
  border: 1px dashed var(--border-bright);
  background: var(--bg-deep);
  color: var(--accent);
  font-size: 0.68rem;
  line-height: 1.15;
  letter-spacing: 0.03em;
  white-space: pre;
  transition: border-color 0.12s ease;
}

.tui-nav__links {
  display: flex;
  flex-wrap: wrap;
  justify-content: flex-end;
  gap: 0.4rem;
}

.tui-nav__links a {
  display: inline-block;
  padding: 0.45rem 0.75rem;
  color: var(--text);
  text-decoration: none;
  font-size: 0.8125rem;
  border: 1px solid var(--border);
  background: var(--bg-deep);
  transition: color 0.12s ease, background 0.12s ease, border-color 0.12s ease, transform 0.12s ease;
}

.tui-nav__links a:hover,
.tui-nav__links a:focus-visible {
  color: var(--accent);
  background: #0e1320;
  border-color: var(--border-bright);
  transform: translateY(-1px);
  outline: none;
  text-decoration: none;
}

.tui-nav__links a::before {
  content: "[";
  opacity: 0.5;
  margin-right: 0.15em;
}

.tui-nav__links a::after {
  content: "]";
  opacity: 0.5;
  margin-left: 0.15em;
}

@media (max-width: 760px) {
  .tui-nav {
    align-items: flex-start;
    flex-direction: column;
  }

  .tui-nav__links {
    width: 100%;
    justify-content: flex-start;
  }
}

/* ══════════════════════════════════════════
   Main content area
   ══════════════════════════════════════════ */

.tui-body {
  padding: 1.5rem 1.25rem 2rem;
}

.tui-prompt-line {
  display: flex;
  align-items: baseline;
  gap: 0.5rem;
  margin-bottom: 1.25rem;
  font-size: 0.8125rem;
}

.tui-prompt-line__user {
  color: var(--accent-dim);
}

.tui-prompt-line__path {
  color: var(--info-text);
}

.tui-prompt-line__sym {
  color: var(--accent);
}

/* ══════════════════════════════════════════
   Typography
   ══════════════════════════════════════════ */

h1,
h2,
h3,
h4 {
  font-weight: 600;
  line-height: 1.25;
  letter-spacing: -0.02em;
}

h1 {
  font-size: 1.75rem;
  margin: 0 0 0.5rem;
  color: var(--text);
}

h1::before {
  content: "# ";
  color: var(--accent);
  font-weight: 700;
}

h2 {
  font-size: 1.25rem;
  margin: 2rem 0 0.75rem;
  padding-bottom: 0.35rem;
  border-bottom: 1px solid var(--border);
  color: var(--text);
}

h2::before {
  content: "## ";
  color: var(--text-dim);
  font-weight: 400;
  font-size: 0.95em;
}

h3 {
  font-size: 1.05rem;
  margin: 1.5rem 0 0.5rem;
  color: var(--warn-text);
}

h3::before {
  content: "### ";
  color: var(--text-dim);
  font-weight: 400;
}

h4 {
  font-size: 0.9375rem;
  margin: 1.25rem 0 0.4rem;
  color: var(--info-text);
}

h4::before {
  content: "#### ";
  color: var(--text-dim);
  font-weight: 400;
}

p {
  margin: 0 0 1rem;
  color: var(--text);
  font-size: 0.875rem;
}

.meta {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin-bottom: 1.5rem;
  padding: 0.5rem 0.65rem;
  background: var(--bg-deep);
  border: 1px dashed var(--border);
  font-size: 0.75rem;
  color: var(--text-dim);
}

.meta span::before {
  content: ">";
  margin-right: 0.35rem;
  color: var(--accent);
}

.tag-link {
  color: var(--text-dim);
}

.tag-link:hover {
  color: var(--accent);
}

/* ══════════════════════════════════════════
   Code blocks
   ══════════════════════════════════════════ */

pre {
  margin: 1.25rem 0;
  padding: 1rem 1.1rem;
  overflow-x: auto;
  background: var(--bg-deep);
  border: 1px solid var(--border);
  border-left: 3px solid var(--accent);
  border-radius: 0 2px 2px 0;
  font-size: 0.8125rem;
  line-height: 1.5;
}

pre code {
  font-family: inherit;
  color: var(--text);
}

code {
  font-family: inherit;
  color: var(--accent);
  font-size: 0.9em;
}

/* ══════════════════════════════════════════
   Callouts
   ══════════════════════════════════════════ */

.callout {
  margin: 1rem 0;
  padding: 0.85rem 1rem;
  border: 1px solid;
  border-radius: 2px;
  font-size: 0.8125rem;
}

.callout__label {
  display: block;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  font-size: 0.65rem;
  margin-bottom: 0.4rem;
}

.callout--info {
  background: var(--info-bg);
  border-color: var(--info-border);
  color: var(--info-text);
}
.callout--info .callout__label {
  color: var(--info-border);
}

.callout--warn {
  background: var(--warn-bg);
  border-color: var(--warn-border);
  color: var(--warn-text);
}
.callout--warn .callout__label {
  color: var(--warn-border);
}

.callout--danger {
  background: var(--danger-bg);
  border-color: var(--danger-border);
  color: var(--danger-text);
}
.callout--danger .callout__label {
  color: var(--danger-border);
}

/* ══════════════════════════════════════════
   Tags
   ══════════════════════════════════════════ */

.tag-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
  margin: 0.75rem 0 0;
}

.tag {
  display: inline-block;
  padding: 0.2rem 0.5rem;
  font-size: 0.6875rem;
  border: 1px solid var(--border);
  color: var(--text-dim);
  background: var(--bg-deep);
  text-decoration: none;
}

.tag::before {
  content: "~";
  margin-right: 0.25rem;
  color: var(--accent);
}

a.tag:hover {
  color: var(--accent);
  border-color: var(--border-bright);
  text-decoration: none;
}

.tag--active {
  color: var(--accent);
  border-color: var(--accent-dim);
  background: rgba(0, 230, 118, 0.06);
}

/* Tag filter bar */
.tui-tag-filter {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.4rem;
  margin-bottom: 1.5rem;
  padding: 0.5rem 0.65rem;
  background: var(--bg-deep);
  border: 1px dashed var(--border);
}

.tui-tag-filter__label {
  font-size: 0.75rem;
  color: var(--text-dim);
  margin-right: 0.25rem;
}

.tui-tag-filter__label::before {
  content: ">";
  margin-right: 0.35rem;
  color: var(--accent);
}

/* ══════════════════════════════════════════
   Hero (homepage)
   ══════════════════════════════════════════ */

.tui-hero {
  margin-bottom: 0.5rem;
}

.tui-hero h1 {
  font-size: 2rem;
  margin-bottom: 0.75rem;
}

.tui-hero__tagline {
  font-size: 0.9375rem;
  color: var(--text-dim);
  line-height: 1.7;
  max-width: 42rem;
}

/* ══════════════════════════════════════════
   Cards (projects, pillars, spotlight)
   ══════════════════════════════════════════ */

.tui-card {
  padding: 1rem 1.1rem;
  border: 1px solid var(--border);
  background: var(--bg-panel);
  transition: border-color 0.12s ease;
}

.tui-card:hover {
  border-color: var(--border-bright);
}

.tui-card__header {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  margin-bottom: 0.5rem;
}

.tui-card__badge {
  display: inline-block;
  padding: 0.15rem 0.5rem;
  font-size: 0.6rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--bg-deep);
  background: var(--accent);
}

.tui-card__title {
  margin: 0;
  font-size: 1.05rem;
}

.tui-card__title::before {
  content: none;
}

.tui-card__desc {
  margin: 0.5rem 0 0.75rem;
  font-size: 0.8125rem;
  color: var(--text-dim);
  line-height: 1.6;
}

.tui-card__cta {
  display: inline-block;
  margin-top: 0.5rem;
  padding: 0.4rem 0.75rem;
  font-size: 0.8125rem;
  color: var(--accent);
  border: 1px solid var(--accent-dim);
  background: rgba(0, 230, 118, 0.06);
  text-decoration: none;
  transition: background 0.12s ease, border-color 0.12s ease;
}

.tui-card__cta:hover {
  background: rgba(0, 230, 118, 0.14);
  border-color: var(--accent);
  text-decoration: none;
}

.tui-card__links {
  display: flex;
  gap: 0.75rem;
  margin-top: 0.75rem;
  font-size: 0.8125rem;
}

.tui-card__links a {
  color: var(--accent);
  text-decoration: none;
}

.tui-card__links a:hover {
  text-decoration: underline;
}

.tui-card__links a::before {
  content: "[";
  opacity: 0.5;
}

.tui-card__links a::after {
  content: "]";
  opacity: 0.5;
}

/* Spotlight (featured project) */
.tui-card--spotlight {
  border-color: var(--accent-dim);
  border-left: 3px solid var(--accent);
  background: linear-gradient(135deg, var(--bg-panel) 0%, rgba(0, 230, 118, 0.03) 100%);
}

/* Dim card (placeholder / coming soon) */
.tui-card--dim {
  border-style: dashed;
  opacity: 0.6;
}

.tui-card--dim:hover {
  opacity: 0.8;
}

/* ══════════════════════════════════════════
   Grid layouts
   ══════════════════════════════════════════ */

.tui-grid {
  display: grid;
  gap: 0.75rem;
}

.tui-grid--2col {
  grid-template-columns: 1fr 1fr;
}

@media (max-width: 640px) {
  .tui-grid--2col {
    grid-template-columns: 1fr;
  }
}

/* ══════════════════════════════════════════
   Blog post previews (list & homepage)
   ══════════════════════════════════════════ */

.tui-post-list {
  display: flex;
  flex-direction: column;
  gap: 0;
}

.tui-post-preview {
  display: block;
  padding: 1rem 1.1rem;
  border: 1px solid var(--border);
  border-bottom: none;
  background: var(--bg-panel);
  color: var(--text);
  text-decoration: none;
  transition: border-color 0.12s ease, background 0.12s ease;
}

.tui-post-preview:last-child {
  border-bottom: 1px solid var(--border);
}

.tui-post-preview:hover {
  border-color: var(--border-bright);
  background: var(--bg-elevated);
  text-decoration: none;
}

.tui-post-preview:hover + .tui-post-preview {
  border-top-color: var(--border-bright);
}

.tui-post-preview__meta {
  display: flex;
  gap: 0.75rem;
  margin-bottom: 0.35rem;
  font-size: 0.7rem;
  color: var(--text-dim);
}

.tui-post-preview__meta span::before {
  content: ">";
  margin-right: 0.3rem;
  color: var(--accent);
}

.tui-post-preview__title {
  margin: 0 0 0.25rem;
  font-size: 0.95rem;
  color: var(--text);
}

.tui-post-preview__title::before {
  content: none;
}

.tui-post-preview__excerpt {
  margin: 0;
  font-size: 0.8125rem;
  color: var(--text-dim);
  line-height: 1.55;
}

.tui-post-preview .tag-row {
  margin-top: 0.5rem;
}

.tui-view-all {
  margin-top: 1rem;
  font-size: 0.8125rem;
}

/* ══════════════════════════════════════════
   Tech stack grid (about page)
   ══════════════════════════════════════════ */

.tui-stack-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
  margin-top: 0.75rem;
}

.tui-stack-group h4 {
  margin: 0 0 0.4rem;
}

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

/* ══════════════════════════════════════════
   Footer
   ══════════════════════════════════════════ */

.tui-footer {
  margin-top: 2rem;
  padding-top: 1rem;
  border-top: 1px solid var(--border);
  font-size: 0.75rem;
  color: var(--text-dim);
  text-align: center;
}

.tui-footer p {
  margin: 0 0 0.35rem;
  font-size: inherit;
  color: inherit;
}

/* ══════════════════════════════════════════
   Disabled / not-ready elements
   ══════════════════════════════════════════ */

.tui-disabled {
  cursor: not-allowed !important;
  opacity: 0.35;
  color: var(--text-dim) !important;
  pointer-events: auto;
}

.tui-disabled:hover,
.tui-disabled:focus-visible {
  text-decoration: none !important;
  color: var(--text-dim) !important;
  background: none !important;
  border-color: var(--border) !important;
  transform: none !important;
}

/* ══════════════════════════════════════════
   Section divider
   ══════════════════════════════════════════ */

.tui-rule {
  margin: 2rem 0;
  border: none;
  border-top: 1px dashed var(--border);
}