:root, [data-theme="cyan"] {
  --bg: #040d12;
  --bg-panel: #07161f;
  --fg: #00f0ff;
  --fg-dim: #008899;
  --accent: #70ffff;
  --border: #005f73;
  --glow: rgba(0, 240, 255, 0.18);
}

[data-theme="phosphor"] {
  --bg: #050d07;
  --bg-panel: #09170d;
  --fg: #33ff66;
  --fg-dim: #1f993d;
  --accent: #99ffbb;
  --border: #145224;
  --glow: rgba(51, 255, 102, 0.18);
}

[data-theme="amber"] {
  --bg: #0f0a04;
  --bg-panel: #1a1106;
  --fg: #ffb000;
  --fg-dim: #996900;
  --accent: #ffd97d;
  --border: #664600;
  --glow: rgba(255, 176, 0, 0.18);
}

[data-theme="mono"] {
  --bg: #0a0a0a;
  --bg-panel: #141414;
  --fg: #e5e5e5;
  --fg-dim: #888888;
  --accent: #ffffff;
  --border: #444444;
  --glow: rgba(255, 255, 255, 0.12);
}

* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

body {
  background-color: var(--bg);
  color: var(--fg);
  font-family: 'Fira Code', monospace;
  line-height: 1.6;
  font-size: 15px;
  min-height: 100vh;
  overflow-x: hidden;
  position: relative;
}

body.scanlines::after {
  content: "";
  position: fixed;
  inset: 0;
  background: repeating-linear-gradient(
    to bottom,
    transparent 0px,
    transparent 2px,
    rgba(0, 0, 0, 0.28) 3px,
    rgba(0, 0, 0, 0.28) 4px
  );
  pointer-events: none;
  z-index: 999;
}

a {
  color: var(--accent);
  text-decoration: none;
  transition: all 0.15s ease;
}

a:hover, a:focus {
  background: var(--fg);
  color: var(--bg);
  outline: none;
}

.container {
  max-width: 1120px;
  margin: 0 auto;
  padding: 1rem;
}

/* Top Bar */
.top-bar {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  align-items: center;
  gap: 0.75rem;
  padding: 0.6rem 0.9rem;
  border: 1px solid var(--border);
  background: var(--bg-panel);
  margin-bottom: 1rem;
  font-size: 0.82rem;
}

.top-controls {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
  align-items: center;
}

.btn-term {
  background: transparent;
  color: var(--fg);
  border: 1px solid var(--border);
  padding: 0.25rem 0.55rem;
  font-family: inherit;
  font-size: 0.8rem;
  cursor: pointer;
  display: inline-block;
  transition: 0.15s;
}

.btn-term:hover, .btn-term.active {
  background: var(--fg);
  color: var(--bg);
  border-color: var(--fg);
  box-shadow: 0 0 8px var(--glow);
}

.btn-cta {
  background: var(--fg);
  color: var(--bg);
  border: 1px solid var(--fg);
  padding: 0.6rem 1.1rem;
  font-weight: 700;
  font-size: 0.92rem;
  display: inline-block;
  box-shadow: 0 0 12px var(--glow);
}

.btn-cta:hover {
  background: var(--accent);
  color: var(--bg);
}

/* Header & ASCII Banner */
header {
  border: 1px solid var(--border);
  background: var(--bg-panel);
  padding: 1.25rem;
  margin-bottom: 1rem;
  box-shadow: 0 0 18px var(--glow);
}

.ascii-banner {
  font-size: clamp(0.42rem, 1.3vw, 0.86rem);
  line-height: 1.15;
  color: var(--fg);
  text-shadow: 0 0 8px var(--glow);
  overflow-x: auto;
  margin-bottom: 1rem;
  user-select: none;
}

h1 {
  font-size: clamp(1.1rem, 2.2vw, 1.45rem);
  font-weight: 700;
  color: var(--accent);
  margin-bottom: 0.35rem;
}

.subtitle {
  color: var(--fg-dim);
  font-size: 0.92rem;
}

/* Navigation */
nav {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-bottom: 1.25rem;
  border-bottom: 1px solid var(--border);
  padding-bottom: 0.75rem;
}

.nav-tab {
  background: var(--bg-panel);
  color: var(--fg);
  border: 1px solid var(--border);
  padding: 0.5rem 1rem;
  font-family: inherit;
  font-size: 0.9rem;
  font-weight: 600;
  cursor: pointer;
  display: inline-block;
}

.nav-tab:hover, .nav-tab.is-active {
  background: var(--fg);
  color: var(--bg);
  border-color: var(--fg);
  box-shadow: 0 0 10px var(--glow);
}

/* Sections */
.term-section {
  display: none;
  animation: fadeIn 0.18s ease-in;
}

.term-section.is-active {
  display: block;
}

@keyframes fadeIn {
  from { opacity: 0.3; transform: translateY(2px); }
  to { opacity: 1; transform: translateY(0); }
}

.grid-2 {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(310px, 1fr));
  gap: 1rem;
  margin-bottom: 1rem;
}

.panel {
  border: 1px solid var(--border);
  background: var(--bg-panel);
  padding: 1.15rem;
  margin-bottom: 1rem;
}

h2 {
  font-size: 1.15rem;
  color: var(--accent);
  border-bottom: 1px dashed var(--border);
  padding-bottom: 0.45rem;
  margin-bottom: 0.85rem;
}

h3 {
  font-size: 1rem;
  color: var(--accent);
  margin: 0.5rem 0 0.35rem;
}

p {
  margin-bottom: 0.75rem;
}

ul.term-list {
  list-style: none;
  margin-bottom: 0.75rem;
}

ul.term-list li {
  margin-bottom: 0.4rem;
  padding-left: 1.2rem;
  position: relative;
}

ul.term-list li::before {
  content: ">";
  position: absolute;
  left: 0;
  color: var(--fg-dim);
  font-weight: bold;
}

.ascii-box {
  font-size: clamp(0.62rem, 1.2vw, 0.8rem);
  line-height: 1.25;
  color: var(--fg-dim);
  overflow-x: auto;
  padding: 0.5rem 0;
}

/* Portfolio Archive Grid */
.filter-bar {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 0.75rem;
  margin-bottom: 1rem;
  padding: 0.75rem;
  border: 1px solid var(--border);
  background: var(--bg-panel);
}

.filter-buttons {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
}

.search-input {
  background: var(--bg);
  color: var(--fg);
  border: 1px solid var(--border);
  padding: 0.35rem 0.65rem;
  font-family: inherit;
  font-size: 0.85rem;
  min-width: 220px;
}

.search-input:focus {
  outline: 1px solid var(--fg);
}

.projects-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(290px, 1fr));
  gap: 0.85rem;
}

.project-card {
  border: 1px solid var(--border);
  background: var(--bg-panel);
  padding: 0.95rem;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}

.project-card:hover {
  border-color: var(--fg);
  box-shadow: 0 0 10px var(--glow);
}

.project-tag {
  display: inline-block;
  font-size: 0.72rem;
  color: var(--fg-dim);
  border: 1px solid var(--border);
  padding: 0.1rem 0.4rem;
  margin-bottom: 0.4rem;
}

.project-desc {
  font-size: 0.86rem;
  color: var(--fg);
  margin: 0.4rem 0 0.8rem;
}

.project-link {
  font-size: 0.84rem;
  font-weight: 600;
  align-self: flex-start;
}

.card-links {
  display: flex;
  gap: 0.6rem;
  flex-wrap: wrap;
}

/* Contact Form */
.form-group {
  margin-bottom: 0.85rem;
}

.form-group label {
  display: block;
  font-size: 0.85rem;
  margin-bottom: 0.3rem;
  color: var(--fg-dim);
}

.form-control {
  width: 100%;
  background: var(--bg);
  color: var(--fg);
  border: 1px solid var(--border);
  padding: 0.55rem;
  font-family: inherit;
  font-size: 0.9rem;
}

.form-control:focus {
  outline: 1px solid var(--fg);
}

footer {
  margin-top: 2rem;
  padding: 1rem;
  border: 1px solid var(--border);
  background: var(--bg-panel);
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 0.75rem;
  font-size: 0.82rem;
  color: var(--fg-dim);
}

/* Terminal YouTube Video Frame */
.video-frame {
  border: 1px solid var(--border);
  background: var(--bg);
  padding: 0.4rem;
  box-shadow: 0 0 12px var(--glow);
  margin-bottom: 0.75rem;
}

.video-frame-header {
  display: flex;
  justify-content: space-between;
  font-size: 0.75rem;
  color: var(--fg-dim);
  border-bottom: 1px dashed var(--border);
  padding-bottom: 0.3rem;
  margin-bottom: 0.4rem;
}

.video-responsive {
  position: relative;
  width: 100%;
  aspect-ratio: 16 / 9;
  background: #000;
}

.video-responsive iframe {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  border: 0;
}

[data-theme="amstrad"] {
  --bg: #000080;
  --bg-panel: #000055;
  --fg: #ffff00;
  --fg-dim: #b3b300;
  --accent: #00ffff;
  --border: #00aaaa;
  --glow: rgba(255, 255, 0, 0.15);
}