/* =========================================
   Reystack — Shared Design System
   ========================================= */

@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700&family=JetBrains+Mono:wght@400;500&display=swap');

:root {
  --bg-base:        #080a0f;
  --bg-surface:     #0e1117;
  --bg-card:        #13161f;
  --bg-card-hover:  #181c27;
  --bg-input:       #0e1117;
  --border:         rgba(255, 255, 255, 0.07);
  --border-accent:  rgba(108, 99, 255, 0.35);

  --text-primary:   #eef0f6;
  --text-secondary: #7c8799;
  --text-muted:     #4a5568;

  --accent:         #6c63ff;
  --accent-hover:   #5a52e0;
  --accent-light:   rgba(108, 99, 255, 0.12);
  --accent-glow:    rgba(108, 99, 255, 0.25);

  --green:          #22c55e;
  --green-bg:       rgba(34, 197, 94, 0.10);
  --red:            #ef4444;
  --red-bg:         rgba(239, 68, 68, 0.10);
  --yellow:         #f59e0b;
  --yellow-bg:      rgba(245, 158, 11, 0.10);
  --blue:           #3b82f6;
  --blue-bg:        rgba(59, 130, 246, 0.10);

  --radius-sm:  6px;
  --radius:     10px;
  --radius-lg:  14px;
  --radius-xl:  20px;

  --shadow-card: 0 4px 24px rgba(0,0,0,0.4), 0 1px 4px rgba(0,0,0,0.3);
  --shadow-glow: 0 0 40px rgba(108, 99, 255, 0.12);

  --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --font-mono: 'JetBrains Mono', 'Fira Code', 'Cascadia Code', monospace;
}

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

html { scroll-behavior: smooth; }

body {
  font-family: var(--font-sans);
  background: var(--bg-base);
  color: var(--text-primary);
  line-height: 1.6;
  min-height: 100vh;
  -webkit-font-smoothing: antialiased;
}

/* ── Scrollbar ── */
::-webkit-scrollbar { width: 6px; height: 6px; }
::-webkit-scrollbar-track { background: var(--bg-surface); }
::-webkit-scrollbar-thumb { background: #2a2f3e; border-radius: 3px; }
::-webkit-scrollbar-thumb:hover { background: var(--accent); }

/* ── Typography ── */
h1, h2, h3, h4, h5, h6 {
  font-weight: 600;
  line-height: 1.3;
  color: var(--text-primary);
}
a { color: var(--accent); text-decoration: none; transition: color 0.2s; }
a:hover { color: var(--accent-hover); }
code, pre {
  font-family: var(--font-mono);
  font-size: 0.875em;
}

/* ── Navbar ── */
.navbar {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(8, 10, 15, 0.85);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--border);
  height: 60px;
  display: flex;
  align-items: center;
  padding: 0 24px;
}
.navbar-inner {
  max-width: 1440px;
  width: 100%;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.nav-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 700;
  font-size: 1.125rem;
  color: var(--text-primary);
  letter-spacing: -0.02em;
}
.nav-logo .logo-icon {
  width: 30px;
  height: 30px;
  background: linear-gradient(135deg, var(--accent), #a78bfa);
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 14px;
  font-weight: 800;
  color: #fff;
}
.nav-links {
  display: flex;
  align-items: center;
  gap: 4px;
  list-style: none;
}
.nav-links a {
  color: var(--text-secondary);
  font-size: 0.875rem;
  font-weight: 500;
  padding: 6px 12px;
  border-radius: var(--radius-sm);
  transition: all 0.2s;
}
.nav-links a:hover, .nav-links a.active {
  color: var(--text-primary);
  background: var(--accent-light);
}
.nav-links a.active { color: var(--accent); }

/* ── Page Header ── */
.page-header {
  text-align: center;
  padding: 60px 24px 40px;
  max-width: 700px;
  margin: 0 auto;
}
.page-header h1 {
  font-size: clamp(1.8rem, 4vw, 2.6rem);
  font-weight: 700;
  letter-spacing: -0.03em;
  background: linear-gradient(135deg, #fff 30%, #a78bfa);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  margin-bottom: 12px;
}
.page-header p {
  color: var(--text-secondary);
  font-size: 1rem;
  line-height: 1.7;
}
.page-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: var(--accent-light);
  border: 1px solid var(--border-accent);
  color: #a78bfa;
  font-size: 0.75rem;
  font-weight: 600;
  padding: 4px 12px;
  border-radius: 999px;
  margin-bottom: 16px;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

/* ── Container ── */
.container {
  max-width: 1440px;
  margin: 0 auto;
  padding: 0 40px 60px;
}
.container-sm {
  max-width: 1440px;
  margin: 0 auto;
  padding: 0 40px 60px;
}

/* ── Card ── */
.card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-card);
  overflow: hidden;
}
.card-header {
  padding: 16px 20px;
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}
.card-title {
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--text-secondary);
  display: flex;
  align-items: center;
  gap: 8px;
}
.card-title .dot {
  width: 8px; height: 8px;
  border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 0 6px var(--accent);
}
.card-body { padding: 20px; }

/* ── Buttons ── */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 9px 18px;
  border-radius: var(--radius-sm);
  font-family: var(--font-sans);
  font-size: 0.875rem;
  font-weight: 500;
  cursor: pointer;
  transition: all 0.2s;
  border: none;
  outline: none;
  white-space: nowrap;
}
.btn-primary {
  background: var(--accent);
  color: #fff;
}
.btn-primary:hover {
  background: var(--accent-hover);
  box-shadow: 0 4px 16px var(--accent-glow);
  transform: translateY(-1px);
}
.btn-secondary {
  background: var(--bg-card-hover);
  color: var(--text-primary);
  border: 1px solid var(--border);
}
.btn-secondary:hover {
  background: #1e2233;
  border-color: rgba(255,255,255,0.12);
}
.btn-ghost {
  background: transparent;
  color: var(--text-secondary);
  border: 1px solid var(--border);
}
.btn-ghost:hover {
  color: var(--text-primary);
  border-color: rgba(255,255,255,0.12);
  background: var(--accent-light);
}
.btn-success {
  background: var(--green-bg);
  color: var(--green);
  border: 1px solid rgba(34, 197, 94, 0.25);
}
.btn-danger {
  background: var(--red-bg);
  color: var(--red);
  border: 1px solid rgba(239, 68, 68, 0.25);
}
.btn-sm { padding: 6px 12px; font-size: 0.8rem; }
.btn-lg { padding: 12px 24px; font-size: 0.95rem; }

.btn-group {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
}

/* ── Form Controls ── */
.form-group { margin-bottom: 16px; }
.form-label {
  display: block;
  font-size: 0.8rem;
  font-weight: 500;
  color: var(--text-secondary);
  margin-bottom: 6px;
  text-transform: uppercase;
  letter-spacing: 0.04em;
}
textarea, input[type="text"], input[type="url"], select {
  width: 100%;
  background: var(--bg-input);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  color: var(--text-primary);
  font-family: var(--font-mono);
  font-size: 0.875rem;
  padding: 12px 14px;
  transition: border-color 0.2s, box-shadow 0.2s;
  resize: vertical;
  outline: none;
}
textarea:focus, input[type="text"]:focus, input[type="url"]:focus, select:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-light);
}
textarea { min-height: 340px; line-height: 1.7; }
select { resize: none; cursor: pointer; }
select option { background: var(--bg-card); }

/* ── Code/Output Blocks ── */
.code-block {
  background: var(--bg-surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 16px;
  font-family: var(--font-mono);
  font-size: 0.85rem;
  line-height: 1.7;
  color: var(--text-primary);
  overflow: auto;
  white-space: pre-wrap;
  word-break: break-all;
}
.code-block.scrollable { max-height: 400px; }
.output-block {
  background: var(--bg-surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
}
.output-header {
  padding: 10px 16px;
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.output-header span {
  font-size: 0.78rem;
  font-weight: 600;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

/* ── Status Badges ── */
.badge {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 3px 10px;
  border-radius: 999px;
  font-size: 0.75rem;
  font-weight: 600;
}
.badge-green { background: var(--green-bg); color: var(--green); }
.badge-red   { background: var(--red-bg);   color: var(--red); }
.badge-blue  { background: var(--blue-bg);  color: var(--blue); }
.badge-yellow{ background: var(--yellow-bg);color: var(--yellow); }
.badge-gray  { background: rgba(255,255,255,0.06); color: var(--text-secondary); }

/* ── Two-column layout ── */
.two-col {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
}
@media (max-width: 768px) {
  .two-col { grid-template-columns: 1fr; }
  .navbar-inner { gap: 12px; }
  .nav-links { display: none; }
}

/* ── Alert ── */
.alert {
  padding: 12px 16px;
  border-radius: var(--radius-sm);
  font-size: 0.875rem;
  display: flex;
  align-items: flex-start;
  gap: 10px;
}
.alert-error { background: var(--red-bg); border: 1px solid rgba(239,68,68,0.25); color: #fca5a5; }
.alert-success { background: var(--green-bg); border: 1px solid rgba(34,197,94,0.25); color: #86efac; }
.alert-info { background: var(--blue-bg); border: 1px solid rgba(59,130,246,0.25); color: #93c5fd; }
.hidden { display: none !important; }

/* ── Footer ── */
.site-footer {
  text-align: center;
  padding: 24px;
  border-top: 1px solid var(--border);
  color: var(--text-muted);
  font-size: 0.8rem;
}
.site-footer a { color: var(--text-secondary); }
.site-footer a:hover { color: var(--accent); }

/* ── Tool card (homepage) ── */
.tools-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 20px;
}
.tool-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 28px;
  transition: all 0.25s;
  position: relative;
  overflow: hidden;
  cursor: pointer;
  text-decoration: none;
  color: inherit;
  display: block;
}
.tool-card::before {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(400px circle at var(--mx,50%) var(--my,50%), var(--accent-light), transparent 60%);
  opacity: 0;
  transition: opacity 0.3s;
}
.tool-card:hover { border-color: var(--border-accent); transform: translateY(-3px); box-shadow: var(--shadow-glow); }
.tool-card:hover::before { opacity: 1; }
.tool-icon {
  width: 48px; height: 48px;
  background: var(--accent-light);
  border: 1px solid var(--border-accent);
  border-radius: var(--radius);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 22px;
  margin-bottom: 18px;
}
.tool-card h3 {
  font-size: 1.05rem;
  font-weight: 600;
  margin-bottom: 8px;
  color: var(--text-primary);
}
.tool-card p {
  font-size: 0.875rem;
  color: var(--text-secondary);
  line-height: 1.6;
  margin-bottom: 18px;
}
.tool-card-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 0.8rem;
  color: var(--text-muted);
}
.tool-arrow {
  color: var(--accent);
  font-size: 1rem;
  transition: transform 0.2s;
}
.tool-card:hover .tool-arrow { transform: translateX(4px); }

/* ── Divider ── */
.divider {
  border: none;
  border-top: 1px solid var(--border);
  margin: 20px 0;
}

/* ── Copy button feedback ── */
.btn.copied { background: var(--green-bg); color: var(--green); border-color: rgba(34,197,94,0.25); }