/* Envious docs site — clean professional light theme.
   Sticky white header, contained content column, compact hero,
   static footer. Brand accent is Envious red, used sparingly. */
:root {
  --bg: #ffffff;
  --bg-soft: #f8f9fb;
  --surface: #fff;
  --border: #e6e8eb;
  --text: #1c2330;
  --text-muted: #5d6b7d;
  --accent: #c94848;
  --accent-hover: #a33333;
  --ink: #161b22;
  --content-width: 960px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }

body {
  margin: 0;
  min-height: 100vh;
  font-family: "Roboto", system-ui, -apple-system, "Segoe UI", sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.65;
  font-size: 16px;
  display: flex;
  flex-direction: column;
}

main.container-fluid, .container-fluid {
  width: 100%;
  max-width: var(--content-width);
  margin: 0 auto;
  padding: 0 1.5rem 3rem;
  flex: 1;
}

/* ----- Sticky Header ----- */
.header {
  position: sticky; top: 0; z-index: 100;
  background: rgba(255, 255, 255, 0.97);
  border-bottom: 1px solid var(--border);
}
.header-inner {
  max-width: var(--content-width);
  margin: 0 auto;
  padding: 0 1.5rem;
  height: 60px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.logo { font-weight: 700; font-size: 1.15rem; color: var(--ink); text-decoration: none; letter-spacing: -0.01em; }
.logo span { color: var(--accent); }
.nav { display: flex; gap: 0.25rem; }
.nav a {
  color: var(--text-muted); text-decoration: none; font-size: 0.9rem; font-weight: 500;
  padding: 0.45rem 0.75rem; border-radius: 6px;
}
.nav a:hover { color: var(--text); background: var(--bg-soft); }
.nav a.active { color: var(--accent); }

/* ----- Hero (compact, light) ----- */
.hero { padding: 3.5rem 0 2.5rem; }
.hero-inner {
  display: grid; grid-template-columns: 1fr; gap: 2rem; align-items: center;
}
@media (min-width: 768px) { .hero-inner { grid-template-columns: 1.05fr 1fr; gap: 3rem; } }
.hero-content, .hero-script { min-width: 0; }

.hero-eyebrow {
  display: inline-block; font-size: 0.75rem; font-weight: 700;
  letter-spacing: 0.08em; text-transform: uppercase;
  color: var(--accent); margin: 0 0 0.75rem;
}
.hero h1 {
  font-size: clamp(2rem, 4.5vw, 2.75rem); font-weight: 700;
  margin: 0 0 0.5rem; letter-spacing: -0.02em; color: var(--ink); line-height: 1.15;
}
.hero .tagline { font-size: 1.1rem; color: var(--text); margin: 0 0 0.75rem; font-weight: 500; }
.hero .hero-desc { font-size: 0.95rem; color: var(--text-muted); line-height: 1.65; margin: 0 0 1.25rem; max-width: 34rem; }
.hero-tags { display: flex; flex-wrap: wrap; gap: 0.4rem; margin-bottom: 1.5rem; }
.hero .hero-tags span {
  font-size: 0.72rem; font-weight: 500; color: var(--text-muted);
  background: var(--bg-soft); border: 1px solid var(--border);
  padding: 0.25rem 0.6rem; border-radius: 999px;
}
.hero-cta { display: flex; gap: 0.75rem; flex-wrap: wrap; }
.btn { font-size: 0.875rem; font-weight: 500; padding: 0.6rem 1.25rem; border-radius: 8px; text-decoration: none; font-family: inherit; }
.btn-primary { background: var(--accent); color: #fff; border: 1px solid var(--accent); }
.btn-primary:hover { background: var(--accent-hover); border-color: var(--accent-hover); }
.btn-outline { background: transparent; color: var(--text); border: 1px solid var(--border); }
.btn-outline:hover { border-color: var(--text-muted); }

/* Terminal panel */
.hero-script-editor {
  background: #1e1e1e; border: 1px solid #2d2d2d; border-radius: 10px;
  overflow: hidden; box-shadow: 0 12px 32px rgba(22, 27, 34, 0.18);
}
.hero-script-tabbar {
  display: flex; align-items: center; padding: 0 0.5rem 0 0.75rem;
  background: #252526; border-bottom: 1px solid #333; min-height: 2.25rem;
}
.hero-script-tab {
  font-size: 0.8125rem; font-family: Consolas, "Courier New", monospace;
  padding: 0.4rem 1rem; background: #1e1e1e; color: #fff;
  border-bottom: 2px solid var(--accent); margin-bottom: -1px;
}
.hero-script pre {
  margin: 0; padding: 1rem 1.25rem; background: #1e1e1e; overflow-x: auto;
  font-size: 0.8125rem; line-height: 1.6; color: #d4d4d4;
  font-family: Consolas, "Courier New", monospace;
}
.hero-script pre code { background: none; padding: 0; border: none; color: inherit; }
.term-prompt { color: #4ec9b0; }
.term-comment { color: #6a9955; }
.term-cmd { color: #9cdcfe; }
.term-out { color: #ce9178; }

/* ----- Sections ----- */
section { padding: 2.25rem 0; border-top: 1px solid var(--border); }
section:first-of-type { border-top: 0; }
section h2 { font-size: 1.4rem; font-weight: 700; margin: 0 0 0.5rem; color: var(--ink); letter-spacing: -0.01em; }
section h3 { color: var(--ink); font-size: 1.05rem; margin: 1.5rem 0 0.5rem; }
.intro-text, .why-list, .when-list, .advantages-list {
  font-size: 0.95rem; color: var(--text-muted); line-height: 1.7; margin: 0 0 1rem;
}
.intro-text { max-width: 44rem; }
.why-list, .when-list, .advantages-list { padding-left: 1.25rem; margin-bottom: 0.5rem; }
.why-list li, .when-list li, .advantages-list li { margin-bottom: 0.5rem; }
.why-list strong, .when-list strong { color: var(--text); }
.section-lead { font-size: 0.95rem; color: var(--text-muted); margin: 0 0 1.25rem; max-width: 44rem; }
.section-lead a, .intro-text a { color: var(--accent); }

.use-case-card, .doc-card {
  background: var(--surface); border: 1px solid var(--border);
  border-radius: 10px; padding: 1.25rem 1.4rem; margin-bottom: 0.9rem;
}
.use-case-card h3, .doc-card h3 { font-size: 1rem; font-weight: 600; margin: 0 0 0.4rem; }
.use-case-card p, .doc-card p { margin: 0; font-size: 0.9rem; color: var(--text-muted); line-height: 1.6; }

.features-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(280px, 1fr)); gap: 0.9rem; }
.feature-card {
  background: var(--surface); border: 1px solid var(--border); border-radius: 10px;
  padding: 1.2rem 1.3rem;
}
.feature-card h3 { font-size: 0.95rem; font-weight: 600; margin: 0 0 0.35rem; }
.feature-card p { margin: 0; font-size: 0.85rem; color: var(--text-muted); line-height: 1.6; }

.doc-links, .download-links { display: flex; flex-direction: column; gap: 0.5rem; }
.doc-links a, .download-links a { color: var(--accent); text-decoration: none; font-size: 0.9rem; }
.doc-links a:hover, .download-links a:hover { text-decoration: underline; }

/* Tables */
.table-wrap { overflow-x: auto; margin: 0 0 1.5rem; border: 1px solid var(--border); border-radius: 10px; background: var(--surface); }
table.spec { width: 100%; border-collapse: collapse; font-size: 0.875rem; }
table.spec th, table.spec td { text-align: left; padding: 0.65rem 1rem; border-bottom: 1px solid var(--border); }
table.spec tr:last-child th, table.spec tr:last-child td { border-bottom: 0; }
table.spec th { background: var(--bg-soft); font-weight: 600; white-space: nowrap; color: var(--ink); }
table.spec td { color: var(--text-muted); }
table.spec td:first-child { color: var(--text); }
table.spec a { color: var(--accent); }

/* Code blocks */
pre.block {
  background: #1e1e1e; color: #d4d4d4; border-radius: 10px;
  padding: 1rem 1.25rem; overflow-x: auto; font-size: 0.8125rem; line-height: 1.6;
  font-family: Consolas, "Courier New", monospace; margin: 0 0 1.5rem;
}
code {
  font-family: Consolas, "Courier New", monospace; font-size: 0.85em;
  background: var(--bg-soft); padding: 0.1rem 0.35rem; border-radius: 4px; border: 1px solid var(--border);
}
pre.block code { background: none; padding: 0; border: none; color: inherit; }
.hero-desc code, .section-lead code { background: var(--bg-soft); }

/* Support contact card */
.contact-card {
  background: var(--ink); color: #e8e8e8; border-radius: 12px;
  padding: 1.75rem; margin-bottom: 1rem;
}
.contact-card h3 { color: #fff; margin: 0 0 0.5rem; font-size: 1.05rem; }
.contact-card p { margin: 0 0 1.1rem; font-size: 0.9rem; color: #a3a3a3; max-width: 36rem; }
.contact-card a.mail {
  display: inline-block; background: var(--accent); color: #fff;
  padding: 0.6rem 1.25rem; border-radius: 8px; text-decoration: none; font-size: 0.875rem; font-weight: 500;
}
.contact-card a.mail:hover { background: var(--accent-hover); }

/* ----- Static Footer ----- */
.footer {
  border-top: 1px solid var(--border);
  background: var(--bg-soft);
  padding: 1.25rem 0;
  margin-top: 1rem;
}
.footer-inner {
  max-width: var(--content-width); margin: 0 auto; padding: 0 1.5rem;
  display: flex; align-items: center; justify-content: space-between; flex-wrap: wrap; gap: 0.75rem;
}
.footer-credit { margin: 0; font-size: 0.85rem; color: var(--text-muted); }
.footer-credit a { color: var(--accent); text-decoration: none; font-weight: 500; }
.footer-credit a:hover { text-decoration: underline; }
.footer-links { display: flex; align-items: center; gap: 0.25rem; }
.footer-links a { font-size: 0.85rem; color: var(--text-muted); text-decoration: none; padding: 0.35rem 0.6rem; border-radius: 6px; }
.footer-links a:hover { color: var(--accent); background: rgba(201, 72, 72, 0.08); }

/* ----- Mobile nav ----- */
.nav-toggle {
  display: none; flex-direction: column; justify-content: center; gap: 5px;
  width: 44px; height: 44px; padding: 0; border: none; background: transparent;
  color: var(--ink); cursor: pointer; border-radius: 8px; -webkit-tap-highlight-color: transparent;
}
.nav-toggle:hover { background: var(--bg-soft); }
.nav-toggle__bar { display: block; width: 22px; height: 2.5px; background: currentColor; border-radius: 2px; transition: transform .25s, opacity .25s; }
body.nav-open .nav-toggle__bar:nth-child(1) { transform: translateY(7.5px) rotate(45deg); }
body.nav-open .nav-toggle__bar:nth-child(2) { opacity: 0; }
body.nav-open .nav-toggle__bar:nth-child(3) { transform: translateY(-7.5px) rotate(-45deg); }
.nav-backdrop, .nav-drawer { display: none; }

@media (max-width: 768px) {
  .header-inner { position: relative; }
  .nav-toggle { display: flex; order: 2; margin-left: auto; }
  .header .nav { display: none; }
  .nav-backdrop {
    display: block; position: fixed; inset: 0; background: rgba(0,0,0,.45); z-index: 1001;
    opacity: 0; visibility: hidden; transition: opacity .25s, visibility .25s;
  }
  body.nav-open .nav-backdrop { opacity: 1; visibility: visible; }
  .nav-drawer {
    display: block; position: fixed; top: 0; left: 0; width: min(280px, 85vw); height: 100%;
    background: var(--surface); box-shadow: 4px 0 24px rgba(0,0,0,.15); z-index: 1002;
    overflow-y: auto; transform: translateX(-100%); transition: transform .25s ease-out;
  }
  body.nav-open .nav-drawer { transform: translateX(0); }
  .nav-drawer__links { list-style: none; margin: 0; padding: 1rem 0; }
  .nav-drawer__links a {
    display: flex; align-items: center; padding: 1rem 1.5rem;
    color: var(--text); text-decoration: none; font-weight: 500; font-size: 1rem;
  }
  .nav-drawer__links a:hover { background: var(--bg-soft); color: var(--accent); }
  body.nav-open { overflow: hidden; }
  .hero { padding: 2.25rem 0 1.75rem; }
  .hero-inner { grid-template-columns: 1fr; gap: 1.5rem; }
  .hero h1 { font-size: 1.75rem; }
  main.container-fluid, .container-fluid { padding: 0 1rem 2rem; }
  .header-inner, .footer-inner { padding: 0 1rem; }
  section { padding: 1.75rem 0; }
  .features-grid { grid-template-columns: 1fr; }
  .footer-inner { flex-direction: column; align-items: center; text-align: center; gap: 0.5rem; }
  .footer-links { justify-content: center; }
}