/* ─────────────────────────────────────────────────────────────
   project-theme.css  — shared dark theme for IGME-330 projects
   Mirrors the design system of blakerossi-portfolio
   ───────────────────────────────────────────────────────────── */

:root {
  --font-display: 'Syne', ui-sans-serif, system-ui, sans-serif;
  --font-body:    'Space Grotesk', ui-sans-serif, system-ui, sans-serif;
  --font-mono:    'JetBrains Mono', ui-monospace, monospace;

  --bg:           #030712;
  --bg-card:      #0a0c19;
  --text-primary: rgba(255, 255, 255, 0.95);
  --text-secondary: rgba(255, 255, 255, 0.62);
  --text-muted:   rgba(255, 255, 255, 0.38);
  --border:       rgba(255, 255, 255, 0.08);
  --border-hover: rgba(255, 255, 255, 0.20);
}

*, *::before, *::after { box-sizing: border-box; }
html { -webkit-font-smoothing: antialiased; }

body {
  background: var(--bg);
  color: var(--text-primary);
  font-family: var(--font-body);
  margin: 0;
}

h1, h2, h3, h4 {
  font-family: var(--font-display);
  font-weight: 700;
  letter-spacing: -0.025em;
  color: var(--text-primary);
  line-height: 1.15;
}

p, li {
  font-family: var(--font-body);
  color: var(--text-secondary);
  line-height: 1.65;
}

label {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--text-secondary);
}

a {
  color: rgba(255, 255, 255, 0.65);
  transition: color 0.2s;
}
a:hover { color: #fff; }

/* ── project header nav ────────────────────────────────────── */

.project-header {
  display: flex;
  align-items: center;
  gap: 1rem;
  padding: 0.8rem 2rem;
  background: rgba(3, 7, 18, 0.9);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--border);
  z-index: 200;
  flex-wrap: wrap;
}

.project-header__back {
  font-family: var(--font-mono);
  font-size: 0.68rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--text-secondary);
  text-decoration: none;
  white-space: nowrap;
  transition: color 0.2s;
}
.project-header__back:hover { color: var(--text-primary); }

.project-header__divider {
  width: 1px;
  height: 0.9rem;
  background: var(--border-hover);
  flex-shrink: 0;
}

.project-header__title {
  font-family: var(--font-display);
  font-size: 0.88rem;
  font-weight: 700;
  letter-spacing: -0.01em;
  color: var(--text-primary);
  margin: 0;
}

.project-header__tags {
  display: flex;
  gap: 0.35rem;
  margin-left: auto;
  flex-wrap: wrap;
}

.project-tag {
  font-family: var(--font-mono);
  font-size: 0.6rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  padding: 0.18rem 0.52rem;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid var(--border);
  color: var(--text-muted);
}

/* ── buttons ───────────────────────────────────────────────── */

button {
  font-family: var(--font-body);
  font-size: 0.85rem;
  font-weight: 600;
  padding: 0.45rem 1.1rem;
  border-radius: 999px;
  border: 1px solid var(--border-hover);
  background: rgba(255, 255, 255, 0.06);
  color: var(--text-primary);
  cursor: pointer;
  transition: background 0.2s, border-color 0.2s, transform 0.15s;
}
button:hover {
  background: rgba(255, 255, 255, 0.11);
  border-color: rgba(255, 255, 255, 0.3);
  transform: translateY(-1px);
}
button:active { transform: translateY(0); }

/* ── range sliders ─────────────────────────────────────────── */

input[type=range] {
  -webkit-appearance: none;
  appearance: none;
  height: 4px;
  background: rgba(255, 255, 255, 0.15);
  border-radius: 999px;
  outline: none;
  cursor: pointer;
}
input[type=range]::-webkit-slider-thumb {
  -webkit-appearance: none;
  width: 14px;
  height: 14px;
  border-radius: 50%;
  background: #fff;
  cursor: pointer;
}
input[type=range]::-moz-range-thumb {
  width: 14px;
  height: 14px;
  border-radius: 50%;
  background: #fff;
  border: none;
  cursor: pointer;
}

/* ── checkbox ──────────────────────────────────────────────── */

input[type=checkbox] {
  accent-color: #818cf8;
  width: 0.95rem;
  height: 0.95rem;
  cursor: pointer;
}

/* ── select ────────────────────────────────────────────────── */

select {
  font-family: var(--font-body);
  font-size: 0.85rem;
  background: var(--bg-card);
  color: var(--text-primary);
  border: 1px solid var(--border-hover);
  border-radius: 0.5rem;
  padding: 0.35rem 0.65rem;
  outline: none;
  cursor: pointer;
}

/* ── text inputs ───────────────────────────────────────────── */

input[type=text] {
  font-family: var(--font-body);
  font-size: 0.85rem;
  background: rgba(255, 255, 255, 0.05);
  color: var(--text-primary);
  border: 1px solid var(--border);
  border-radius: 0.5rem;
  padding: 0.4rem 0.8rem;
  outline: none;
  transition: border-color 0.2s;
}
input[type=text]:focus { border-color: var(--border-hover); }