/* ═══════════════════════════════════════════════════════════
   SHAPE SHOP — Design System
   Warm coral/rose palette — creative, inviting, distinct
   ═══════════════════════════════════════════════════════════ */

@import url('https://fonts.googleapis.com/css2?family=Anybody:wght@400;600;700;800;900&family=IBM+Plex+Sans:ital,wght@0,300;0,400;0,500;0,600;0,700;1,400&family=IBM+Plex+Mono:wght@400;500;600;700&display=swap');

:root {
  /* ── Surfaces ── */
  --bg-0: #0c0a09;
  --bg-1: #1c1917;
  --bg-2: #292524;
  --bg-3: #44403c;
  --bg-4: #57534e;

  /* ── Borders ── */
  --border: rgba(68, 64, 60, 0.7);
  --border-h: #78716c;
  --border-a: rgba(251, 113, 133, 0.4);

  /* ── Accent: Rose ── */
  --accent: #fb7185;
  --accent-d: #e11d48;
  --accent-l: #fda4af;
  --accent-glow: rgba(251, 113, 133, 0.12);
  --accent-glow-strong: rgba(251, 113, 133, 0.25);

  /* ── Text ── */
  --text: #fafaf9;
  --text-2: #d6d3d1;
  --text-3: #a8a29e;
  --text-4: #78716c;

  /* ── Semantic ── */
  --success: #4ade80;
  --warning: #fbbf24;
  --error: #f87171;
  --info: #60a5fa;

  /* ── Typography ── */
  --font-display: 'Anybody', 'Arial Black', Impact, sans-serif;
  --font-body: 'IBM Plex Sans', -apple-system, BlinkMacSystemFont, sans-serif;
  --font-mono: 'IBM Plex Mono', 'Menlo', 'Consolas', monospace;

  /* ── Spacing ── */
  --space-xs: 0.25rem;
  --space-sm: 0.5rem;
  --space-md: 1rem;
  --space-lg: 1.5rem;
  --space-xl: 2.5rem;
  --space-2xl: 4rem;

  /* ── Radius ── */
  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 12px;
  --radius-xl: 20px;

  /* ── Shadows ── */
  --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.4);
  --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.5);
  --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.6);
  --shadow-glow: 0 0 20px var(--accent-glow), 0 0 60px var(--accent-glow);
  --shadow-inset: inset 0 1px 0 rgba(255, 255, 255, 0.04);

  /* ── Transitions ── */
  --ease-out: cubic-bezier(0.16, 1, 0.3, 1);
  --ease-bounce: cubic-bezier(0.34, 1.56, 0.64, 1);
  --duration-fast: 150ms;
  --duration-normal: 250ms;
  --duration-slow: 500ms;
}

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

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

body {
  font-family: var(--font-body);
  background: var(--bg-0);
  color: var(--text);
  line-height: 1.6;
  min-height: 100vh;
  overflow-x: hidden;
}

/* ── Noise overlay for depth ── */
body::before {
  content: '';
  position: fixed;
  inset: 0;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)' opacity='0.03'/%3E%3C/svg%3E");
  background-repeat: repeat;
  pointer-events: none;
  z-index: 9999;
}

/* ── Typography ── */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-display);
  font-weight: 800;
  letter-spacing: -0.03em;
  line-height: 1.15;
}

h1 { font-size: 2.5rem; font-weight: 900; }
h2 { font-size: 1.75rem; }
h3 { font-size: 1.25rem; font-weight: 700; }

p { color: var(--text-2); line-height: 1.65; }

a {
  color: var(--accent);
  text-decoration: none;
  transition: color var(--duration-fast) var(--ease-out);
}
a:hover { color: var(--accent-l); }

/* ── Buttons ── */
.btn {
  display: inline-flex;
  align-items: center;
  gap: var(--space-sm);
  padding: 0.6rem 1.4rem;
  font-family: var(--font-mono);
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: all var(--duration-normal) var(--ease-out);
  background: var(--bg-2);
  color: var(--text);
  text-decoration: none;
  white-space: nowrap;
  position: relative;
  overflow: hidden;
}

.btn::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(255,255,255,0.04) 0%, transparent 50%);
  pointer-events: none;
}

.btn:hover {
  border-color: var(--border-h);
  background: var(--bg-3);
  transform: translateY(-1px);
  box-shadow: var(--shadow-md);
  color: var(--text);
}

.btn:active {
  transform: translateY(0);
  box-shadow: none;
}

.btn-primary {
  background: var(--accent-d);
  border-color: var(--accent);
  color: #fff;
  box-shadow: 0 2px 16px var(--accent-glow), 0 0 0 1px rgba(251,113,133,0.15);
}

.btn-primary:hover {
  background: var(--accent);
  border-color: var(--accent-l);
  box-shadow: 0 4px 24px var(--accent-glow-strong), 0 0 60px var(--accent-glow);
}

.btn-ghost {
  background: transparent;
  border-color: transparent;
  color: var(--text-3);
}
.btn-ghost:hover {
  color: var(--text);
  background: var(--bg-2);
  border-color: var(--border);
}

.btn-sm {
  padding: 0.35rem 0.8rem;
  font-size: 0.75rem;
}

.btn-lg {
  padding: 0.85rem 2rem;
  font-size: 0.95rem;
}

/* ── Cards ── */
.card {
  background: linear-gradient(180deg, rgba(28,25,23,0.95) 0%, rgba(28,25,23,1) 100%);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: var(--space-lg);
  box-shadow: var(--shadow-inset), var(--shadow-sm), 0 0 0 1px rgba(0,0,0,0.3);
  transition: all var(--duration-normal) var(--ease-out);
  position: relative;
}

.card::before {
  content: '';
  position: absolute;
  inset: 0;
  border-radius: inherit;
  background: linear-gradient(180deg, rgba(255,255,255,0.03) 0%, transparent 40%);
  pointer-events: none;
}

.card:hover {
  border-color: var(--border-h);
  box-shadow: var(--shadow-inset), var(--shadow-md), 0 0 0 1px rgba(0,0,0,0.3);
}

.card-glow:hover {
  border-color: var(--border-a);
  box-shadow: 0 0 20px var(--accent-glow), 0 4px 20px rgba(0,0,0,0.5);
}

/* ── Inputs ── */
.input, input[type="text"], input[type="password"], input[type="email"], textarea, select {
  width: 100%;
  padding: 0.65rem 1rem;
  font-family: var(--font-body);
  font-size: 0.95rem;
  color: var(--text);
  background: var(--bg-0);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  outline: none;
  transition: border-color var(--duration-fast) var(--ease-out),
              box-shadow var(--duration-fast) var(--ease-out);
}

.input:focus, input:focus, textarea:focus, select:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-glow);
}

.input::placeholder, input::placeholder {
  color: var(--text-4);
}

label {
  display: block;
  font-family: var(--font-display);
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--text-3);
  margin-bottom: var(--space-xs);
}

/* ── Top Bar ── */
.topbar {
  position: sticky;
  top: 0;
  z-index: 100;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 var(--space-lg);
  height: 56px;
  background: rgba(12, 10, 9, 0.92);
  backdrop-filter: blur(20px) saturate(1.4);
  border-bottom: 1px solid rgba(68, 64, 60, 0.4);
  box-shadow: 0 1px 0 rgba(255,255,255,0.02);
}

.topbar-brand {
  font-family: var(--font-display);
  font-size: 0.95rem;
  font-weight: 800;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--text);
  text-decoration: none;
  display: flex;
  align-items: center;
  gap: var(--space-sm);
}

.topbar-brand .dot {
  display: inline-block;
  width: 8px;
  height: 8px;
  background: var(--accent);
  border-radius: 50%;
  box-shadow: 0 0 8px var(--accent-glow-strong);
  animation: pulse-dot 3s ease-in-out infinite;
}

@keyframes pulse-dot {
  0%, 100% { opacity: 1; box-shadow: 0 0 8px var(--accent-glow-strong); }
  50% { opacity: 0.6; box-shadow: 0 0 16px var(--accent-glow-strong); }
}

.topbar-nav {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
}

/* ── Badge ── */
.badge {
  display: inline-flex;
  align-items: center;
  padding: 0.15rem 0.6rem;
  font-family: var(--font-mono);
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  border-radius: 999px;
  border: 1px solid var(--border);
  background: var(--bg-2);
  color: var(--text-3);
}

.badge-accent {
  border-color: var(--accent);
  color: var(--accent);
  background: var(--accent-glow);
}

.badge-success {
  border-color: var(--success);
  color: var(--success);
  background: rgba(74, 222, 128, 0.1);
}

/* ── Progress Bar ── */
.progress {
  width: 100%;
  height: 4px;
  background: var(--bg-3);
  border-radius: 999px;
  overflow: hidden;
}

.progress-fill {
  height: 100%;
  background: linear-gradient(90deg, var(--accent-d), var(--accent));
  border-radius: 999px;
  transition: width var(--duration-slow) var(--ease-out);
}

/* ── Grid Layout ── */
.grid-2 { display: grid; grid-template-columns: repeat(2, 1fr); gap: var(--space-lg); }
.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: var(--space-lg); }
.grid-4 { display: grid; grid-template-columns: repeat(auto-fill, minmax(240px, 1fr)); gap: var(--space-lg); }

@media (max-width: 768px) {
  .grid-2, .grid-3 { grid-template-columns: 1fr; }
  h1 { font-size: 1.75rem; }
}

/* ── Utility ── */
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--space-lg);
}

.text-center { text-align: center; }
.text-accent { color: var(--accent); }
.text-muted { color: var(--text-3); }
.text-sm { font-size: 0.85rem; }
.text-xs { font-size: 0.75rem; }
.text-mono { font-family: var(--font-mono); }
.mt-sm { margin-top: var(--space-sm); }
.mt-md { margin-top: var(--space-md); }
.mt-lg { margin-top: var(--space-lg); }
.mt-xl { margin-top: var(--space-xl); }
.mb-md { margin-bottom: var(--space-md); }
.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-sm { gap: var(--space-sm); }
.gap-md { gap: var(--space-md); }

/* ── Animations ── */
@keyframes fade-in {
  from { opacity: 0; transform: translateY(12px); }
  to { opacity: 1; transform: translateY(0); }
}

@keyframes slide-up {
  from { opacity: 0; transform: translateY(24px); }
  to { opacity: 1; transform: translateY(0); }
}

@keyframes glow-pulse {
  0%, 100% { box-shadow: 0 0 20px var(--accent-glow); }
  50% { box-shadow: 0 0 40px var(--accent-glow-strong), 0 0 80px var(--accent-glow); }
}

.animate-in {
  animation: fade-in var(--duration-slow) var(--ease-out) backwards;
}

.stagger-1 { animation-delay: 0.1s; }
.stagger-2 { animation-delay: 0.2s; }
.stagger-3 { animation-delay: 0.3s; }
.stagger-4 { animation-delay: 0.4s; }
.stagger-5 { animation-delay: 0.5s; }

/* ── Scrollbar ── */
::-webkit-scrollbar { width: 6px; height: 6px; }
::-webkit-scrollbar-track { background: var(--bg-0); }
::-webkit-scrollbar-thumb { background: var(--bg-3); border-radius: 999px; }
::-webkit-scrollbar-thumb:hover { background: var(--bg-4); }

/* ── Selection ── */
::selection {
  background: var(--accent-d);
  color: #fff;
}