/* ============================================================
   DarkForge Art — Base CSS
   Design principles:
   - Dark, artistic, full-bleed — no boxy containers
   - No color gradients (except very subtle overlays on images)
   - Typography-led: elegant display fonts for headings
   - Color palette: deep black, warm charcoal, off-white, crimson accent
   ============================================================ */

/* ─── Custom Properties ─────────────────────────────────────── */
:root {
  --color-bg: #0a0a0a;
  --color-surface: #111111;
  --color-surface-raised: #1a1a1a;
  --color-border: #222222;

  --color-text: #e8e4dc;
  --color-text-muted: #888880;
  --color-text-faint: #444440;

  --color-accent: #b91c1c;      /* Crimson */
  --color-accent-light: #ef4444;
  --color-accent-dim: #7f1d1d;

  --color-white: #ffffff;
  --color-black: #000000;

  --font-display: 'Cinzel', 'Playfair Display', Georgia, serif;
  --font-body: 'Inter', 'DM Sans', system-ui, sans-serif;
  --font-mono: 'JetBrains Mono', 'Fira Code', monospace;

  --radius-sm: 2px;
  --radius-md: 4px;
  --radius-lg: 8px;

  --transition: 0.2s ease;
  --transition-slow: 0.4s ease;

  --nav-height: 64px;
  --max-content-width: 1400px;
}

[data-theme="light"] {
  --color-bg: #f9f8f6;
  --color-surface: #ffffff;
  --color-surface-raised: #f1efec;
  --color-border: #e2ded9;

  --color-text: #1a1917;
  --color-text-muted: #66635d;
  --color-text-faint: #a09c95;

  --color-accent: #b91c1c;
  --color-accent-light: #991b1b;
  --color-accent-dim: #ffe4e6;

  --color-white: #0f0e0d;
  --color-black: #ffffff;
}

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

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

body {
  background-color: var(--color-bg);
  color: var(--color-text);
  font-family: var(--font-body);
  line-height: 1.6;
  min-height: 100vh;
  overflow-x: hidden;
}

/* ─── Typography ────────────────────────────────────────────── */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-display);
  font-weight: 700;
  letter-spacing: 0.02em;
  line-height: 1.15;
  color: var(--color-white);
}

h1 { font-size: clamp(2rem, 5vw, 4rem); }
h2 { font-size: clamp(1.5rem, 3.5vw, 2.5rem); }
h3 { font-size: clamp(1.2rem, 2.5vw, 1.8rem); }
h4 { font-size: 1.25rem; }
h5 { font-size: 1rem; }

p { max-width: 68ch; }

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

a:hover { color: var(--color-white); }

strong { font-weight: 600; }
em { font-style: italic; }

small, .text-sm { font-size: 0.875rem; }
.text-muted { color: var(--color-text-muted); }
.text-faint { color: var(--color-text-faint); }
.text-accent { color: var(--color-accent-light); }
.text-upper { text-transform: uppercase; letter-spacing: 0.12em; font-size: 0.8em; }

/* ─── Layout ────────────────────────────────────────────────── */
.container {
  width: 100%;
  max-width: var(--max-content-width);
  margin: 0 auto;
  padding: 0 clamp(1rem, 4vw, 3rem);
}

section { padding: clamp(3rem, 8vw, 6rem) 0; }

.full-bleed {
  width: 100vw;
  position: relative;
  left: 50%;
  right: 50%;
  margin-left: -50vw;
  margin-right: -50vw;
}

/* ─── Navigation ────────────────────────────────────────────── */
.site-nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  height: var(--nav-height);
  background-color: rgba(10, 10, 10, 0.92);
  border-bottom: 1px solid var(--color-border);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  display: flex;
  align-items: center;
}

.site-nav .nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
  max-width: var(--max-content-width);
  margin: 0 auto;
  padding: 0 clamp(1rem, 4vw, 3rem);
}

.nav-logo {
  font-family: var(--font-display);
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--color-white);
  letter-spacing: 0.08em;
  text-decoration: none;
}

.nav-logo:hover { color: var(--color-accent-light); }

.nav-logo span { color: var(--color-accent); }

.nav-links {
  display: flex;
  align-items: center;
  gap: 2rem;
  list-style: none;
}

.nav-links a {
  color: var(--color-text-muted);
  font-size: 0.875rem;
  font-weight: 500;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  transition: color var(--transition);
}

.nav-links a:hover, .nav-links a.active { color: var(--color-white); }

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

.cart-icon {
  position: relative;
  color: var(--color-text-muted);
  transition: color var(--transition);
}

.cart-icon:hover { color: var(--color-white); }

.cart-badge {
  position: absolute;
  top: -6px;
  right: -8px;
  background: var(--color-accent);
  color: white;
  font-size: 0.65rem;
  font-weight: 700;
  min-width: 16px;
  height: 16px;
  border-radius: 99px;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 0 3px;
}

/* Main content offset for fixed nav */
.site-main { padding-top: var(--nav-height); }

/* ─── Buttons ───────────────────────────────────────────────── */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.75rem 1.75rem;
  font-family: var(--font-body);
  font-size: 0.875rem;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  cursor: pointer;
  border: none;
  transition: all var(--transition);
  text-decoration: none;
}

.btn-primary {
  background: var(--color-accent);
  color: var(--color-white);
}

.btn-primary:hover {
  background: var(--color-accent-light);
  color: var(--color-white);
}

.btn-outline {
  background: transparent;
  color: var(--color-white);
  border: 1px solid var(--color-border);
}

.btn-outline:hover {
  border-color: var(--color-white);
  color: var(--color-white);
}

.btn-ghost {
  background: transparent;
  color: var(--color-text-muted);
  padding: 0.5rem 1rem;
}

.btn-ghost:hover { color: var(--color-white); }

.btn-sm { padding: 0.5rem 1.25rem; font-size: 0.8rem; }
.btn-lg { padding: 1rem 2.5rem; font-size: 1rem; }

/* ─── Forms ─────────────────────────────────────────────────── */
.form-group { margin-bottom: 1.5rem; }

label {
  display: block;
  margin-bottom: 0.4rem;
  font-size: 0.8rem;
  font-weight: 500;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-text-muted);
}

input[type="text"],
input[type="email"],
input[type="password"],
input[type="number"],
input[type="tel"],
select,
textarea {
  width: 100%;
  background: var(--color-surface);
  color: var(--color-text);
  border: 1px solid var(--color-border);
  padding: 0.75rem 1rem;
  font-family: var(--font-body);
  font-size: 1rem;
  outline: none;
  transition: border-color var(--transition);
  appearance: none;
}

input:focus,
select:focus,
textarea:focus {
  border-color: var(--color-accent);
}

textarea { resize: vertical; min-height: 120px; }

.form-error {
  color: var(--color-accent-light);
  font-size: 0.8rem;
  margin-top: 0.3rem;
}

/* ─── Messages (Django Messages Framework) ───────────────────── */
.messages-container {
  position: fixed;
  top: calc(var(--nav-height) + 1rem);
  right: 1rem;
  z-index: 200;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  max-width: 380px;
}

.message {
  padding: 0.85rem 1.25rem;
  font-size: 0.875rem;
  border-left: 3px solid;
  background: var(--color-surface-raised);
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 1rem;
}

.message-success { border-color: #22c55e; }
.message-error   { border-color: var(--color-accent); }
.message-info    { border-color: #3b82f6; }
.message-warning { border-color: #f59e0b; }

.message-close {
  cursor: pointer;
  color: var(--color-text-muted);
  background: none;
  border: none;
  font-size: 1rem;
  line-height: 1;
  flex-shrink: 0;
}

/* ─── Footer ────────────────────────────────────────────────── */
.site-footer {
  border-top: 1px solid var(--color-border);
  padding: 3rem 0 2rem;
  margin-top: 4rem;
  color: var(--color-text-muted);
  font-size: 0.875rem;
}

.footer-inner {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 2rem 3rem;
  max-width: var(--max-content-width);
  margin: 0 auto;
  padding: 0 clamp(1rem, 4vw, 3rem);
}

.footer-brand .brand-name {
  font-family: var(--font-display);
  font-size: 1.1rem;
  color: var(--color-white);
  letter-spacing: 0.05em;
  margin-bottom: 0.5rem;
}

.footer-links h4 {
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--color-text-muted);
  margin-bottom: 1rem;
}

.footer-links ul {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
}

.footer-links a {
  color: var(--color-text-muted);
  transition: color var(--transition);
}

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

.footer-bottom {
  max-width: var(--max-content-width);
  margin: 2rem auto 0;
  padding: 1.5rem clamp(1rem, 4vw, 3rem) 0;
  border-top: 1px solid var(--color-border);
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 1rem;
  color: var(--color-text-faint);
  font-size: 0.8rem;
}

/* ─── Dividers / Separators ──────────────────────────────────── */
hr {
  border: none;
  border-top: 1px solid var(--color-border);
  margin: 2rem 0;
}

/* ─── Utility ───────────────────────────────────────────────── */
.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  overflow: hidden;
  clip: rect(0,0,0,0);
  white-space: nowrap;
}

.flex { display: flex; }
.flex-center { display: flex; align-items: center; justify-content: center; }
.flex-between { display: flex; align-items: center; justify-content: space-between; }
.gap-1 { gap: 0.5rem; }
.gap-2 { gap: 1rem; }
.gap-3 { gap: 1.5rem; }
.gap-4 { gap: 2rem; }
.mt-1 { margin-top: 0.5rem; }
.mt-2 { margin-top: 1rem; }
.mt-3 { margin-top: 1.5rem; }
.mt-4 { margin-top: 2rem; }
.mt-6 { margin-top: 3rem; }
.mb-1 { margin-bottom: 0.5rem; }
.mb-2 { margin-bottom: 1rem; }
.mb-3 { margin-bottom: 1.5rem; }
.mb-4 { margin-bottom: 2rem; }
.text-center { text-align: center; }

/* ─── Loading / Skeleton ──────────────────────────────────────── */
@keyframes shimmer {
  0% { background-position: -200% 0; }
  100% { background-position: 200% 0; }
}

.skeleton {
  background: linear-gradient(90deg, var(--color-surface) 25%, var(--color-surface-raised) 50%, var(--color-surface) 75%);
  background-size: 200% 100%;
  animation: shimmer 1.5s infinite;
}

/* ─── Fade-in Animation ──────────────────────────────────────── */
@keyframes fadeInUp {
  from { opacity: 0; transform: translateY(20px); }
  to { opacity: 1; transform: translateY(0); }
}

.fade-in-up { animation: fadeInUp 0.6s ease forwards; }

/* ─── Responsive ────────────────────────────────────────────── */
@media (max-width: 768px) {
  .nav-links { display: none; }
  .footer-inner { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 480px) {
  .footer-inner { grid-template-columns: 1fr; }
  .footer-bottom { flex-direction: column; text-align: center; }
}

/* ─── Mobile Navigation Drawer ────────────────────────────────────────── */
.mobile-menu-toggle {
  display: none;
  background: transparent;
  border: none;
  color: var(--color-white);
  cursor: pointer;
  padding: 0.4rem;
}

.mobile-drawer-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.7);
  backdrop-filter: blur(4px);
  z-index: 998;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.3s ease;
}

.mobile-drawer-overlay.open {
  opacity: 1;
  pointer-events: auto;
}

.mobile-drawer {
  position: fixed;
  top: 0;
  right: -300px;
  width: 280px;
  height: 100vh;
  background: var(--color-surface);
  border-left: 1px solid var(--color-border);
  z-index: 999;
  display: flex;
  flex-direction: column;
  transition: transform 0.3s cubic-bezier(0.16, 1, 0.3, 1);
  padding: 1.5rem;
}

.mobile-drawer.open {
  transform: translateX(-300px);
}

.mobile-drawer-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-bottom: 1rem;
  border-bottom: 1px solid var(--color-border);
  margin-bottom: 1.5rem;
}

.mobile-drawer-body {
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
}

.mobile-drawer-body a {
  color: var(--color-text);
  font-size: 1rem;
  font-weight: 500;
  text-decoration: none;
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 0.4rem 0;
  transition: color 0.2s ease;
}

.mobile-drawer-body a:hover {
  color: var(--color-accent);
}

.desktop-only { display: inline-flex; }
.mobile-only { display: none; }

@media (max-width: 768px) {
  .mobile-menu-toggle { display: block; }
  .desktop-only { display: none !important; }
  .mobile-only { display: inline-flex !important; }
}