/* ===== FalseViking — Shared Styles ===== */

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

/* ===== Theme Variables ===== */
:root {
  /* Dark theme (default) */
  --bg: #09090b; --surface: #18181b; --surface2: #27272a;
  --border: #3f3f46; --text: #fafafa; --muted: #a1a1aa;
  --accent: #6d28d9; --accent2: #8b5cf6; --accent-glow: rgba(139,92,246,0.15);
  --blue: #3b82f6; --cyan: #22d3ee; --green: #4ade80;
  --yellow: #facc15; --red: #f87171; --orange: #fb923c;
  --code-bg: #0d1117; --code-border: #30363d;
  --font: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --mono: 'JetBrains Mono', 'Fira Code', 'Cascadia Code', monospace;
  color-scheme: dark;
}

html[data-theme="light"] {
  --bg: #fafafa; --surface: #ffffff; --surface2: #f4f4f5;
  --border: #e4e4e7; --text: #18181b; --muted: #71717a;
  --accent: #7c3aed; --accent2: #8b5cf6; --accent-glow: rgba(139,92,246,0.1);
  --code-bg: #f4f4f5; --code-border: #e4e4e7;
  color-scheme: light;
}

/* ===== Base ===== */
html { scroll-behavior: smooth; }
body { font-family: var(--font); background: var(--bg); color: var(--text); line-height: 1.7; overflow-x: hidden; }
a { color: var(--accent2); }

/* ===== Site Nav (shared across all pages) ===== */
.site-nav {
  background: var(--bg); border-bottom: 1px solid var(--border);
  padding: 0.75rem 1.5rem; display: flex; justify-content: space-between; align-items: center;
  position: sticky; top: 0; z-index: 100; backdrop-filter: blur(12px);
}
.site-nav .nav-logo { font-weight: 800; font-size: 1rem; color: var(--text); text-decoration: none; letter-spacing: -0.02em; }
.site-nav .nav-logo span { color: var(--accent2); }
.site-nav .nav-links { display: flex; gap: 1.5rem; list-style: none; align-items: center; }
.site-nav .nav-links a { color: var(--muted); text-decoration: none; font-size: 0.85rem; font-weight: 500; transition: color 0.2s; }
.site-nav .nav-links a:hover { color: var(--text); }
.site-nav .nav-links .active { color: var(--accent2); }

/* Theme toggle button */
.theme-toggle {
  background: var(--surface); border: 1px solid var(--border); border-radius: 8px;
  padding: 0.4rem 0.5rem; cursor: pointer; color: var(--muted);
  display: inline-flex; align-items: center; justify-content: center;
  transition: color 0.2s, border-color 0.2s; font-size: 1rem; line-height: 1;
}
.theme-toggle:hover { color: var(--accent2); border-color: var(--accent2); }
.theme-toggle .icon-sun { display: none; }
.theme-toggle .icon-moon { display: inline; }
html[data-theme="light"] .theme-toggle .icon-sun { display: inline; }
html[data-theme="light"] .theme-toggle .icon-moon { display: none; }

/* ===== Guide Page Shared Styles ===== */

/* Guide hero */
.guide-hero {
  background: linear-gradient(135deg, var(--bg) 0%, #1e1b4b 50%, var(--bg) 100%);
  border-bottom: 1px solid var(--border);
  padding: 4rem 1.5rem 3rem; text-align: center;
}
html[data-theme="light"] .guide-hero {
  background: linear-gradient(135deg, var(--bg) 0%, #ede9fe 50%, var(--bg) 100%);
}
.guide-hero h1 { font-size: clamp(1.8rem, 4vw, 2.8rem); font-weight: 800; margin-bottom: 1rem; }
.guide-hero h1 span { background: linear-gradient(135deg, var(--accent2), var(--cyan)); -webkit-background-clip: text; -webkit-text-fill-color: transparent; }
.guide-hero p { color: var(--muted); font-size: 1.1rem; max-width: 680px; margin: 0 auto 1.5rem; }
.hero-meta { display: flex; gap: 1.5rem; justify-content: center; flex-wrap: wrap; color: var(--muted); font-size: 0.875rem; }
.hero-meta span { display: flex; align-items: center; gap: 0.4rem; }

/* Guide container */
.guide-container { max-width: 960px; margin: 0 auto; padding: 2rem 1.5rem; }

/* TOC */
.toc { background: var(--surface); border: 1px solid var(--border); border-radius: 12px; padding: 1.5rem 2rem; margin-bottom: 3rem; }
.toc h2 { font-size: 1rem; text-transform: uppercase; letter-spacing: 0.1em; color: var(--muted); margin-bottom: 1rem; }
.toc ol { padding-left: 1.25rem; }
.toc li { margin-bottom: 0.4rem; }
.toc a { color: var(--accent2); text-decoration: none; }
.toc a:hover { text-decoration: underline; }

/* Sections */
.section { margin-bottom: 3.5rem; }
.section h2 { font-size: 1.5rem; font-weight: 700; margin-bottom: 1rem; padding-bottom: 0.5rem; border-bottom: 2px solid var(--accent2); display: inline-block; }
.section h3 { font-size: 1.15rem; font-weight: 600; margin: 1.5rem 0 0.75rem; color: var(--accent2); }
.section h4 { font-size: 1rem; font-weight: 600; margin: 1.25rem 0 0.5rem; color: var(--text); }
.section p, .section li { color: var(--text); margin-bottom: 0.75rem; }
.section ul, .section ol { padding-left: 1.5rem; margin-bottom: 1rem; }

/* Code blocks */
pre { background: var(--code-bg); border: 1px solid var(--code-border); border-radius: 8px; padding: 1.25rem; overflow-x: auto; margin: 1rem 0 1.5rem; font-size: 0.85rem; line-height: 1.6; }
code { font-family: var(--mono); }
pre code { color: var(--text); }
p code, li code, td code { background: var(--surface2); padding: 0.15rem 0.4rem; border-radius: 4px; font-size: 0.875em; color: var(--accent2); }

/* Callouts */
.callout { border-radius: 8px; padding: 1rem 1.25rem; margin: 1.25rem 0; border-left: 4px solid; font-size: 0.95rem; }
.callout-warn { background: rgba(250,204,21,0.08); border-color: var(--yellow); }
.callout-warn .callout-title { color: var(--yellow); }
.callout-danger { background: rgba(248,113,113,0.08); border-color: var(--red); }
.callout-danger .callout-title { color: var(--red); }
.callout-info { background: rgba(139,92,246,0.08); border-color: var(--accent2); }
.callout-info .callout-title { color: var(--accent2); }
.callout-success { background: rgba(74,222,128,0.08); border-color: var(--green); }
.callout-success .callout-title { color: var(--green); }
.callout-title { font-weight: 700; margin-bottom: 0.3rem; }

/* Architecture diagram */
.arch-diagram { background: var(--code-bg); border: 1px solid var(--code-border); border-radius: 8px; padding: 1.5rem; overflow-x: auto; font-family: var(--mono); font-size: 0.8rem; line-height: 1.5; white-space: pre; margin: 1rem 0 1.5rem; color: var(--muted); }

/* Tables */
table { width: 100%; border-collapse: collapse; margin: 1rem 0 1.5rem; font-size: 0.9rem; }
th { background: var(--surface); color: var(--accent2); text-align: left; padding: 0.75rem; border: 1px solid var(--border); font-weight: 600; }
td { padding: 0.75rem; border: 1px solid var(--border); }

/* File path labels */
.file-label { display: inline-block; background: var(--surface2); color: var(--muted); font-family: var(--mono); font-size: 0.8rem; padding: 0.2rem 0.6rem; border-radius: 4px 4px 0 0; margin-bottom: -1px; position: relative; z-index: 1; }

/* Step numbering */
.steps { counter-reset: step; }
.steps > li { counter-increment: step; list-style: none; position: relative; padding-left: 2.5rem; margin-bottom: 1.25rem; }
.steps > li::before { content: counter(step); position: absolute; left: 0; top: 0; width: 1.75rem; height: 1.75rem; background: var(--accent2); color: #fff; border-radius: 50%; font-weight: 700; font-size: 0.85rem; display: flex; align-items: center; justify-content: center; }
html[data-theme="light"] .steps > li::before { color: #fff; }

/* Footer */
.site-footer { border-top: 1px solid var(--border); padding: 2rem 1.5rem; text-align: center; color: var(--muted); font-size: 0.85rem; }
.site-footer a { color: var(--accent2); text-decoration: none; }

/* ===== Responsive ===== */
@media (max-width: 640px) {
  pre { font-size: 0.75rem; padding: 1rem; }
  .guide-hero { padding: 2.5rem 1rem 2rem; }
  .site-nav { padding: 0.75rem 1rem; }
  .site-nav .nav-links { gap: 0.75rem; }
}