/**
 * PHP Shield Core (php-shield.org) - Light Developer Documentation Theme
 * Clean, high-contrast, documentation-inspired aesthetic (like Stripe / Tailwind / Vite docs).
 */

:root {
  --bg-main: #f8fafc;
  --bg-surface: #ffffff;
  --bg-subtle: #f1f5f9;
  --bg-code: #0f172a;
  --border-color: #e2e8f0;
  --border-strong: #cbd5e1;
  --text-main: #0f172a;
  --text-body: #334155;
  --text-muted: #64748b;
  --primary-accent: #0284c7;
  --primary-hover: #0369a1;
  --primary-light: #e0f2fe;
  --emerald-accent: #059669;
  --emerald-light: #ecfdf5;
  --rose-accent: #e11d48;
  --rose-light: #fff1f2;
  --font-mono: 'JetBrains Mono', 'Fira Code', 'Roboto Mono', Menlo, Consolas, monospace;
}

body {
  background-color: var(--bg-main);
  color: var(--text-body);
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
  line-height: 1.6;
  overflow-x: hidden;
}

h1, h2, h3, h4, h5, h6, .text-dark-custom {
  color: var(--text-main);
  font-weight: 700;
  letter-spacing: -0.02em;
}

code, pre, .font-mono {
  font-family: var(--font-mono);
}

/* Navbar */
.navbar-oss {
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border-color);
  padding: 0.85rem 0;
}

.brand-badge {
  background: var(--primary-light);
  color: var(--primary-accent);
  border: 1px solid #bae6fd;
  font-size: 0.75rem;
  padding: 0.2rem 0.5rem;
  border-radius: 4px;
  font-weight: 600;
}

.nav-link-oss {
  color: var(--text-body);
  font-size: 0.9rem;
  font-weight: 500;
  transition: color 0.15s ease;
  padding: 0.4rem 0.75rem;
}

.nav-link-oss:hover {
  color: var(--primary-accent);
}

/* Hero */
.hero-oss {
  padding: 4rem 0 3rem 0;
  background: linear-gradient(180deg, #ffffff 0%, #f8fafc 100%);
  border-bottom: 1px solid var(--border-color);
}

.hero-lead {
  font-size: 1.15rem;
  color: #334155;
  line-height: 1.7;
}

/* Terminal Window */
.terminal-window {
  background: var(--bg-code);
  border: 1px solid #1e293b;
  border-radius: 12px;
  box-shadow: 0 20px 40px -15px rgba(15, 23, 42, 0.25);
  overflow: hidden;
}

.terminal-header {
  background: #1e293b;
  padding: 0.65rem 1rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-bottom: 1px solid #334155;
}

.terminal-dots {
  display: flex;
  gap: 6px;
}

.dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
}

.dot-red { background: #ef4444; }
.dot-yellow { background: #eab308; }
.dot-green { background: #22c55e; }

.terminal-body {
  padding: 1.5rem;
  font-family: var(--font-mono);
  font-size: 0.85rem;
  line-height: 1.7;
  color: #f1f5f9;
  overflow-x: auto;
}

/* Tech Cards */
.tech-card {
  background: var(--bg-surface);
  border: 1px solid var(--border-color);
  border-radius: 10px;
  padding: 1.75rem;
  height: 100%;
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.04);
  transition: border-color 0.2s ease, transform 0.2s ease, box-shadow 0.2s ease;
}

.tech-card:hover {
  border-color: #93c5fd;
  transform: translateY(-2px);
  box-shadow: 0 10px 20px -5px rgba(2, 132, 199, 0.08);
}

.tech-icon {
  width: 44px;
  height: 44px;
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.25rem;
  margin-bottom: 1.25rem;
}

.icon-cyan {
  background: var(--primary-light);
  color: var(--primary-accent);
  border: 1px solid #bae6fd;
}

.icon-emerald {
  background: var(--emerald-light);
  color: var(--emerald-accent);
  border: 1px solid #a7f3d0;
}

.icon-rose {
  background: var(--rose-light);
  color: var(--rose-accent);
  border: 1px solid #fecdd3;
}

/* Pipeline Flow */
.pipeline-diagram {
  background: var(--bg-surface);
  border: 1px solid var(--border-color);
  border-radius: 12px;
  padding: 2rem 1.5rem;
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.04);
}

.pipeline-node {
  background: #f8fafc;
  border: 1px solid var(--border-color);
  border-radius: 8px;
  padding: 1rem 1.25rem;
  text-align: center;
}

.pipeline-node.node-active {
  background: #f0f9ff;
  border-color: #38bdf8;
  box-shadow: 0 0 0 3px rgba(56, 189, 248, 0.15);
}

.pipeline-node.node-isolated {
  background: #f1f5f9;
  border-color: var(--border-strong);
}

.pipeline-arrow {
  display: flex;
  align-items: center;
  justify-content: center;
  color: #94a3b8;
  font-size: 1.25rem;
}

/* Code Snippet Box */
.code-block-wrapper {
  background: var(--bg-code);
  border-radius: 10px;
  overflow: hidden;
  box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
}

.code-block-header {
  background: #1e293b;
  padding: 0.5rem 1rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  border-bottom: 1px solid #334155;
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: #cbd5e1;
}

.code-block {
  background: var(--bg-code);
  margin: 0;
  padding: 1.25rem;
  font-family: var(--font-mono);
  font-size: 0.85rem;
  line-height: 1.6;
  color: #f8fafc;
  overflow-x: auto;
}

.token-keyword { color: #f43f5e; font-weight: 600; }
.token-function { color: #38bdf8; }
.token-string { color: #86efac; }
.token-comment { color: #94a3b8; font-style: italic; }
.token-variable { color: #fef08a; }

/* Buttons */
.btn-cyan {
  background: var(--primary-accent);
  color: #ffffff;
  border: 1px solid var(--primary-accent);
  font-weight: 600;
  transition: all 0.15s ease;
}

.btn-cyan:hover {
  background: var(--primary-hover);
  color: #ffffff;
  border-color: var(--primary-hover);
  box-shadow: 0 4px 12px rgba(2, 132, 199, 0.25);
}

.btn-outline-oss {
  background: #ffffff;
  color: var(--text-main);
  border: 1px solid var(--border-strong);
  font-weight: 600;
  transition: all 0.15s ease;
}

.btn-outline-oss:hover {
  background: #f1f5f9;
  color: var(--text-main);
  border-color: #94a3b8;
}

/* Enterprise Bridge Callout */
.enterprise-bridge {
  background: linear-gradient(135deg, #f0fdf4 0%, #ffffff 100%);
  border: 1px solid #bbf7d0;
  border-radius: 12px;
  padding: 2.25rem;
  box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.03);
}

/* Matrix Table */
.table-oss {
  background: #ffffff;
  border: 1px solid var(--border-color);
  border-radius: 8px;
  overflow: hidden;
}

.table-oss thead th {
  background: #f8fafc;
  color: #0f172a;
  border-bottom: 2px solid var(--border-color);
  font-weight: 700;
  padding: 0.85rem 1rem;
}

.table-oss tbody td {
  padding: 0.85rem 1rem;
  border-bottom: 1px solid var(--border-color);
  color: #334155;
  vertical-align: middle;
}

/* Footer */
.footer-oss {
  background: #ffffff;
  border-top: 1px solid var(--border-color);
  padding: 2.5rem 0;
  color: #64748b;
  font-size: 0.88rem;
}