/* ── Fonts ── */
@import url('https://fonts.googleapis.com/css2?family=Inter:ital,wght@0,300;0,400;0,500;0,600;0,700;0,800;0,900;1,400&display=swap');
@import url('https://fonts.googleapis.com/css2?family=JetBrains+Mono:wght@400;500;600&display=swap');

@tailwind base;
@tailwind components;
@tailwind utilities;

/* ══════════════════════════════════════════════
   LIGHT MODE (default — white + light blue)
══════════════════════════════════════════════ */
:root {
  --cn-bg:               #f8fafc;
  --cn-surface:          #ffffff;
  --cn-surface-elevated: #f1f5f9;
  --cn-surface-glass:    rgba(255,255,255,0.85);
  --cn-border:           #e2e8f0;
  --cn-border-strong:    #cbd5e1;
  --cn-text:             #0f172a;
  --cn-muted:            #64748b;
  --cn-accent:           #2563eb;
  --cn-accent-hover:     #1d4ed8;
  --cn-success:          #16a34a;
  --cn-success-bg:       rgba(22,163,74,0.08);
  --cn-info:             #0891b2;
  --cn-info-bg:          rgba(8,145,178,0.08);
  --cn-danger:           #dc2626;
  --cn-danger-bg:        rgba(220,38,38,0.08);
  --cn-warn:             #d97706;
  --cn-warn-bg:          rgba(217,119,6,0.08);
  --cn-purple:           #7c3aed;
  --cn-shadow:           0 1px 3px rgba(0,0,0,0.08), 0 1px 2px rgba(0,0,0,0.05);
  --cn-shadow-md:        0 4px 12px rgba(0,0,0,0.08), 0 2px 4px rgba(0,0,0,0.04);
  --cn-shadow-lg:        0 10px 30px rgba(0,0,0,0.1), 0 4px 10px rgba(0,0,0,0.05);
}

/* ══════════════════════════════════════════════
   DARK MODE
══════════════════════════════════════════════ */
.dark {
  --cn-bg:               #0a0f1e;
  --cn-surface:          #111827;
  --cn-surface-elevated: #1e2a3d;
  --cn-surface-glass:    rgba(17,24,39,0.9);
  --cn-border:           #1f3050;
  --cn-border-strong:    #2d4470;
  --cn-text:             #e2e8f0;
  --cn-muted:            #8b9dc3;
  --cn-accent:           #3b82f6;
  --cn-accent-hover:     #60a5fa;
  --cn-success:          #22c55e;
  --cn-success-bg:       rgba(34,197,94,0.1);
  --cn-info:             #22d3ee;
  --cn-info-bg:          rgba(34,211,238,0.1);
  --cn-danger:           #f87171;
  --cn-danger-bg:        rgba(248,113,113,0.1);
  --cn-warn:             #fbbf24;
  --cn-warn-bg:          rgba(251,191,36,0.1);
  --cn-purple:           #a78bfa;
  --cn-shadow:           0 1px 3px rgba(0,0,0,0.3), 0 1px 2px rgba(0,0,0,0.2);
  --cn-shadow-md:        0 4px 12px rgba(0,0,0,0.35), 0 2px 4px rgba(0,0,0,0.2);
  --cn-shadow-lg:        0 10px 30px rgba(0,0,0,0.4), 0 4px 10px rgba(0,0,0,0.25);
}

/* ══════════════════════════════════════════════
   BASE
══════════════════════════════════════════════ */
body {
  background-color: var(--cn-bg);
  color: var(--cn-text);
  font-family: 'Inter', sans-serif;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}

::selection { background: rgba(37,99,235,0.15); color: inherit; }

/* ══════════════════════════════════════════════
   COMPONENTS
══════════════════════════════════════════════ */
.card {
  background: var(--cn-surface);
  border: 1px solid var(--cn-border);
  border-radius: 0.875rem;
  box-shadow: var(--cn-shadow);
}

.card-glass {
  background: var(--cn-surface-glass);
  backdrop-filter: blur(16px);
  border: 1px solid var(--cn-border);
  border-radius: 0.875rem;
  box-shadow: var(--cn-shadow);
}

.input-base {
  width: 100%;
  border-radius: 0.5rem;
  border: 1px solid var(--cn-border);
  background: var(--cn-surface);
  padding: 0.625rem 0.875rem;
  font-size: 0.875rem;
  color: var(--cn-text);
  outline: none;
  transition: border-color 0.15s, box-shadow 0.15s;
}
.input-base::placeholder { color: var(--cn-muted); }
.input-base:focus {
  border-color: var(--cn-accent);
  box-shadow: 0 0 0 3px rgba(37,99,235,0.1);
}

.btn-primary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 9999px;
  padding: 0.625rem 1.5rem;
  font-size: 0.875rem;
  font-weight: 600;
  background: var(--cn-accent);
  color: white;
  border: none;
  cursor: pointer;
  transition: background 0.15s, transform 0.1s, box-shadow 0.15s;
  box-shadow: 0 2px 8px rgba(37,99,235,0.25);
}
.btn-primary:hover {
  background: var(--cn-accent-hover);
  transform: translateY(-1px);
  box-shadow: 0 4px 16px rgba(37,99,235,0.3);
}

.btn-secondary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 9999px;
  padding: 0.625rem 1.5rem;
  font-size: 0.875rem;
  font-weight: 600;
  background: var(--cn-surface);
  color: var(--cn-text);
  border: 1px solid var(--cn-border);
  cursor: pointer;
  transition: border-color 0.15s, background 0.15s;
}
.btn-secondary:hover {
  border-color: var(--cn-border-strong);
  background: var(--cn-surface-elevated);
}

/* ══════════════════════════════════════════════
   LANDING PAGE HELPERS
══════════════════════════════════════════════ */
.glass-nav {
  background: rgba(255,255,255,0.92);
  backdrop-filter: blur(16px);
  border-bottom: 1px solid rgba(0,0,0,0.05);
}

.stripe-hero-bg {
  position: absolute; inset: 0;
  background:
    radial-gradient(circle at 100% 0%, #eef2ff 0%, transparent 40%),
    radial-gradient(circle at 0% 100%, #f0fdf4 0%, transparent 30%);
}

.linear-grid {
  background-size: 40px 40px;
  background-image:
    linear-gradient(to right, rgba(0,0,0,0.03) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(0,0,0,0.03) 1px, transparent 1px);
}

.code-window {
  background: #1e1e1e;
  border-radius: 12px;
  box-shadow: 0 20px 50px rgba(0,0,0,0.25);
  border: 1px solid #333;
  font-family: 'JetBrains Mono', monospace;
  overflow: hidden;
}

.code-header {
  background: #2d2d2d;
  padding: 10px 14px;
  display: flex;
  align-items: center;
  gap: 6px;
  border-bottom: 1px solid #3a3a3a;
}

/* ══════════════════════════════════════════════
   SCROLLBAR
══════════════════════════════════════════════ */
::-webkit-scrollbar { width: 6px; height: 6px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: var(--cn-border-strong); border-radius: 9999px; }
::-webkit-scrollbar-thumb:hover { background: var(--cn-muted); }

/* ══════════════════════════════════════════════
   ANIMATIONS
══════════════════════════════════════════════ */
@keyframes fadeIn {
  from { opacity: 0; transform: translateY(6px); }
  to { opacity: 1; transform: translateY(0); }
}
.animate-fade-in { animation: fadeIn 0.3s ease-out; }

@keyframes shimmer {
  0% { background-position: -200% 0; }
  100% { background-position: 200% 0; }
}
.skeleton {
  background: linear-gradient(90deg, var(--cn-surface-elevated) 25%, var(--cn-border) 50%, var(--cn-surface-elevated) 75%);
  background-size: 200% 100%;
  animation: shimmer 1.6s infinite;
  border-radius: 0.5rem;
}