/* ── Nurvus Landing Page ─────────────────────────────────────────── */
/* 16-bit Sega Genesis / Phantasy Star IV aesthetic                    */

:root {
  --bg-dark: #000020;
  --bg-section: #101030;
  --bg-alt: #202040;
  --border: #404060;
  --border-bright: #606080;
  --text: #a0a0c0;
  --text-dim: #606080;
  --text-bright: #e0e0e0;
  --accent: #00c0a0;
  --accent-light: #00e0c0;
  --accent-dim: #008060;
  --gold: #e0c060;
  --gold-dim: #806000;
  --dialog-bg: #202040;
  --dialog-border: #404060;
  --dialog-user-bg: #181838;
  --code-bg: #101030;
  --pixel-font: 'Press Start 2P', monospace;
  --body-font: 'SF Mono', 'Fira Code', 'Cascadia Code', 'Consolas', monospace;
}

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

html {
  scroll-behavior: smooth;
}

body {
  background: var(--bg-dark);
  color: var(--text);
  font-family: var(--body-font);
  font-size: 16px;
  line-height: 1.7;
  overflow-x: hidden;
}

/* ── Scanline Overlay ──────────────────────────────────────────── */

.scanlines {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
  z-index: 1000;
  background: repeating-linear-gradient(
    0deg,
    transparent,
    transparent 2px,
    rgba(0, 0, 0, 0.03) 2px,
    rgba(0, 0, 0, 0.03) 4px
  );
}

/* ── Hero ──────────────────────────────────────────────────────── */

.hero {
  text-align: center;
  padding: 6rem 2rem 4rem;
  background: linear-gradient(180deg, #0e1030 0%, var(--bg-dark) 100%);
}

.hero-sprites {
  display: flex;
  gap: 3rem;
  justify-content: center;
  align-items: flex-end;
  margin-bottom: 2rem;
}

.hero-sprite-pair {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.5rem;
}

.hero-sprite {
  image-rendering: pixelated;
  image-rendering: crisp-edges;
  border: 3px solid var(--border-bright);
  border-radius: 4px;
  box-shadow: 0 0 20px rgba(0, 224, 192, 0.15);
}

.sprite-label {
  font-family: var(--pixel-font);
  font-size: 0.65rem;
  color: var(--accent-light);
  letter-spacing: 2px;
}

.sprite-role {
  font-size: 0.85rem;
  color: var(--gold);
}

.hero-title {
  font-family: var(--pixel-font);
  font-size: 3rem;
  color: var(--accent-light);
  text-shadow: 0 0 30px rgba(0, 224, 192, 0.4);
  margin-bottom: 0.5rem;
  letter-spacing: 4px;
}

.hero-tagline {
  font-family: var(--pixel-font);
  font-size: 0.75rem;
  color: var(--text-dim);
  margin-bottom: 1.5rem;
  letter-spacing: 1px;
}

.hero-sub {
  max-width: 600px;
  margin: 0 auto 2rem;
  color: var(--text);
  font-size: 1.05rem;
}

.hero-sub strong {
  color: var(--accent-light);
}

.hero-sub em {
  color: var(--text-dim);
}

.hero-buttons {
  display: flex;
  gap: 1rem;
  justify-content: center;
  flex-wrap: wrap;
}

.btn {
  font-family: var(--pixel-font);
  font-size: 0.65rem;
  padding: 0.9rem 1.8rem;
  text-decoration: none;
  border: 2px solid;
  letter-spacing: 1px;
  transition: all 0.2s;
}

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

.btn-primary:hover {
  background: var(--accent);
  box-shadow: 0 0 15px rgba(0, 191, 165, 0.4);
}

.btn-secondary {
  background: transparent;
  color: var(--accent-light);
  border-color: var(--border-bright);
}

.btn-icon {
  height: 1.4rem;
  width: auto;
  vertical-align: middle;
  margin-right: 0.5rem;
  filter: brightness(0) invert(0.8) sepia(1) saturate(5) hue-rotate(140deg);
}

.btn-icon-primary {
  filter: brightness(0) invert(1);
}

.btn-primary:hover .btn-icon-primary {
  filter: brightness(0) invert(1);
}

.btn-secondary:hover .btn-icon {
  filter: brightness(0) invert(1) sepia(1) saturate(5) hue-rotate(140deg);
}

.footer-icon {
  height: 1.1rem;
  width: auto;
  vertical-align: middle;
  margin-right: 0.4rem;
  filter: brightness(0) invert(0.8) sepia(1) saturate(5) hue-rotate(140deg);
}

.btn-secondary:hover {
  background: rgba(74, 138, 176, 0.1);
  border-color: var(--accent-light);
}

/* ── Sections ──────────────────────────────────────────────────── */

.section {
  padding: 4rem 2rem;
  max-width: 1100px;
  margin: 0 auto;
}

.section-alt {
  max-width: 100%;
  background: var(--bg-alt);
}

.section-alt > * {
  max-width: 1100px;
  margin-left: auto;
  margin-right: auto;
}

.section-title {
  font-family: var(--pixel-font);
  font-size: 1.1rem;
  color: var(--accent-light);
  margin-bottom: 1.5rem;
  text-align: center;
  letter-spacing: 2px;
}

.section-desc {
  text-align: center;
  margin-bottom: 2rem;
  max-width: 700px;
  margin-left: auto;
  margin-right: auto;
  font-size: 1.05rem;
}

.link {
  color: var(--accent-light);
  text-decoration: none;
  border-bottom: 1px solid var(--accent-dim);
  transition: border-color 0.2s;
}

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

.section-quote {
  text-align: center;
  font-style: italic;
  color: var(--accent);
  margin-top: 2rem;
  font-size: 1.05rem;
}

/* ── Dialog Boxes (JRPG Style) ─────────────────────────────────── */

.dialog-box {
  border: 3px double var(--dialog-border);
  background: var(--dialog-user-bg);
  padding: 1rem 1.5rem;
  margin-bottom: 1rem;
  max-width: 650px;
  margin-left: auto;
  margin-right: auto;
}

.dialog-demi {
  background: var(--dialog-bg);
}

.dialog-speaker {
  font-family: var(--pixel-font);
  font-size: 0.55rem;
  color: var(--accent-light);
  margin-bottom: 0.5rem;
  letter-spacing: 1px;
}

.dialog-text {
  font-family: monospace;
  font-size: 0.9rem;
  line-height: 1.6;
  white-space: pre-line;
  color: var(--text-bright);
}

/* ── Capabilities Grid ─────────────────────────────────────────── */

.capabilities {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 1.5rem;
  margin-top: 2rem;
  max-width: 1100px;
  margin-left: auto;
  margin-right: auto;
}

.capability {
  border: 2px solid var(--border);
  padding: 1.5rem;
  background: var(--bg-section);
  transition: border-color 0.2s;
}

.capability:hover {
  border-color: var(--accent-dim);
}

.capability-icon {
  color: var(--gold);
  font-size: 0.8rem;
  display: inline;
  margin-right: 0.5rem;
}

.capability h3 {
  font-family: var(--pixel-font);
  font-size: 0.8rem;
  display: inline;
  color: var(--accent-light);
  margin-bottom: 0.75rem;
  letter-spacing: 1px;
}

.capability p {
  font-size: 0.95rem;
  color: var(--text);
  margin-top: 0.75rem;
}

/* ── NixOS Pillars ─────────────────────────────────────────────── */

.pillars {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 1.5rem;
  margin-top: 2rem;
}

.pillar {
  text-align: center;
  padding: 1.5rem;
  border: 2px solid var(--border);
  background: var(--bg-section);
}

.pillar h3 {
  font-family: var(--pixel-font);
  font-size: 0.75rem;
  color: var(--accent-light);
  margin-bottom: 0.75rem;
  letter-spacing: 1px;
}

.pillar p {
  font-size: 0.95rem;
}

/* ── Prompt Grid ───────────────────────────────────────────────── */

.prompt-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 1.5rem;
  margin-top: 2rem;
}

.prompt-group h3 {
  font-family: var(--pixel-font);
  font-size: 0.75rem;
  color: var(--accent);
  margin-bottom: 0.75rem;
  letter-spacing: 1px;
}

.prompt-list {
  list-style: none;
}

.prompt-list li {
  font-family: monospace;
  font-size: 0.85rem;
  color: var(--text-dim);
  padding: 0.4rem 0;
  border-bottom: 1px solid rgba(42, 74, 106, 0.3);
}

.prompt-list li:last-child {
  border-bottom: none;
}

/* ── Code Block ────────────────────────────────────────────────── */

.code-block {
  background: var(--code-bg);
  border: 2px solid var(--border);
  padding: 1.2rem 1.5rem;
  max-width: 700px;
  margin: 1.5rem auto;
  overflow-x: auto;
}

.code-block code {
  font-family: monospace;
  font-size: 0.9rem;
  color: var(--accent-light);
  word-break: break-all;
}

.inline-code {
  font-family: monospace;
  background: var(--code-bg);
  padding: 0.15rem 0.4rem;
  border: 1px solid var(--border);
  color: var(--accent-light);
  font-size: 0.9rem;
}

/* ── Requirements ──────────────────────────────────────────────── */

.requirements {
  text-align: center;
  margin-top: 1.5rem;
}

.requirements p {
  margin-bottom: 0.5rem;
}

.requirements strong {
  color: var(--accent-light);
}

/* ── Footer ────────────────────────────────────────────────────── */

.footer {
  text-align: center;
  padding: 3rem 2rem;
  border-top: 2px solid var(--border);
  background: var(--bg-dark);
}

.footer-links {
  display: flex;
  gap: 2rem;
  justify-content: center;
  margin-bottom: 1.5rem;
}

.footer-links a {
  font-family: var(--pixel-font);
  font-size: 0.55rem;
  color: var(--accent);
  text-decoration: none;
  letter-spacing: 1px;
  transition: color 0.2s;
}

.footer-links a:hover {
  color: var(--accent-light);
}

.footer-tagline {
  font-family: var(--pixel-font);
  font-size: 0.5rem;
  color: var(--text-dim);
  letter-spacing: 1px;
  margin-bottom: 2rem;
}

.footer-legal {
  font-size: 0.75rem;
  color: var(--text-dim);
  max-width: 700px;
  margin: 0 auto;
  line-height: 1.5;
  opacity: 0.6;
}

/* ── Responsive ────────────────────────────────────────────────── */

@media (max-width: 600px) {
  .hero {
    padding: 4rem 1.5rem 3rem;
  }

  .hero-title {
    font-size: 2rem;
  }

  .hero-tagline {
    font-size: 0.6rem;
  }

  .section {
    padding: 3rem 1.5rem;
  }

  .section-title {
    font-size: 0.85rem;
  }

  .capabilities,
  .pillars,
  .prompt-grid {
    grid-template-columns: 1fr;
  }

  .dialog-box {
    padding: 0.8rem 1rem;
  }
}