/* =====================================================================
   VolumeDrive brand system — shared across marketing + app UI.
   Mirrors the identity in volumedrive-agents-landing.html.
   ===================================================================== */
:root {
  --black: #080808;
  --white: #f5f2ed;
  --blue: #6c63ff;
  --purple: #a855f7;
  --blue-dim: #5549dd;
  --purple-dim: #9333ea;
  --grey: #1a1a1a;
  --grey2: #252525;
  --muted: #666;
  --border: #222;
  --grad: linear-gradient(135deg, #6c63ff 0%, #a855f7 100%);
  --grad-hover: linear-gradient(135deg, #5549dd 0%, #9333ea 100%);
}

* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }

body {
  background: var(--black);
  color: var(--white);
  font-family: 'Archivo', sans-serif;
  font-size: 15px;
  line-height: 1.6;
  min-height: 100vh;
}

a { color: var(--blue); text-decoration: none; }
a:hover { color: var(--purple); }

.serif { font-family: 'Instrument Serif', serif; font-style: italic; }
.bebas { font-family: 'Bebas Neue', sans-serif; letter-spacing: 0.04em; }

.gradient-text {
  background: var(--grad);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

/* ---------- top nav ---------- */
.nav {
  position: sticky; top: 0; z-index: 100;
  display: flex; justify-content: space-between; align-items: center;
  padding: 18px 40px;
  background: rgba(8,8,8,0.92);
  border-bottom: 1px solid var(--border);
  backdrop-filter: blur(8px);
}
.logo {
  font-family: 'Bebas Neue', sans-serif;
  font-size: 24px; letter-spacing: 0.08em; color: var(--white);
}
.logo span { background: var(--grad); -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text; }
.nav-links { display: flex; gap: 26px; align-items: center; }
.nav-links a { font-size: 13px; color: #aaa; letter-spacing: 0.04em; }
.nav-links a:hover { color: var(--white); }

/* ---------- buttons ---------- */
.btn {
  display: inline-block; cursor: pointer; border: none;
  font-family: 'Archivo', sans-serif; font-weight: 700;
  font-size: 12px; letter-spacing: 0.12em; text-transform: uppercase;
  padding: 12px 26px; transition: opacity .2s, border-color .2s, color .2s;
}
.btn-primary { background: var(--grad); color: var(--white); }
.btn-primary:hover { opacity: .85; color: var(--white); }
.btn-ghost { background: transparent; color: var(--white); border: 1px solid var(--border); }
.btn-ghost:hover { border-color: var(--blue); color: var(--blue); }
.btn-white { background: var(--white); color: var(--blue); }
.btn-block { display: block; width: 100%; text-align: center; }
.btn:disabled { opacity: .4; cursor: not-allowed; }

/* ---------- layout ---------- */
.container { max-width: 1180px; margin: 0 auto; padding: 40px; }
.page-title { font-family: 'Bebas Neue', sans-serif; font-size: 52px; line-height: .95; margin-bottom: 6px; }
.page-sub { font-family: 'Instrument Serif', serif; font-style: italic; color: #999; font-size: 20px; margin-bottom: 36px; }
.section-label {
  font-size: 10px; letter-spacing: 0.3em; text-transform: uppercase;
  background: var(--grad); -webkit-background-clip: text; -webkit-text-fill-color: transparent;
  background-clip: text; font-weight: 600; margin-bottom: 12px; display: inline-block;
}

/* ---------- flash messages ---------- */
.flashes { max-width: 1180px; margin: 16px auto 0; padding: 0 40px; }
.flash { padding: 12px 18px; margin-bottom: 8px; border: 1px solid var(--border); font-size: 14px; }
.flash.error { border-left: 3px solid #e0506a; }
.flash.info  { border-left: 3px solid var(--blue); }

/* ---------- cards / grids ---------- */
.grid { display: grid; gap: 1px; background: var(--border); border: 1px solid var(--border); }
.grid-2 { grid-template-columns: repeat(2, 1fr); }
.grid-3 { grid-template-columns: repeat(3, 1fr); }

.card {
  background: var(--black); padding: 28px; position: relative; overflow: hidden;
  transition: background .2s;
}
.card:hover { background: var(--grey); }
.card::before {
  content: ''; position: absolute; top: 0; left: 0; right: 0; height: 2px;
  background: var(--grad); transform: scaleX(0); transform-origin: left; transition: transform .3s ease;
}
.card:hover::before { transform: scaleX(1); }
.card.locked { opacity: .55; }
.card-icon { font-size: 30px; display: block; margin-bottom: 14px; }
.card h3 { font-family: 'Bebas Neue', sans-serif; font-size: 24px; letter-spacing: .04em; margin-bottom: 8px; }
.card p { font-size: 13px; color: #888; line-height: 1.6; }
.tag {
  display: inline-block; margin-top: 14px; font-size: 10px; letter-spacing: .14em;
  text-transform: uppercase; border: 1px solid #333; padding: 3px 9px;
  background: var(--grad); -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text;
}
.tag.lock { color: #777; -webkit-text-fill-color: #777; background: none; }

/* ---------- stat tiles ---------- */
.stats { display: grid; grid-template-columns: repeat(auto-fit, minmax(180px,1fr)); gap: 1px; background: var(--border); border: 1px solid var(--border); margin-bottom: 36px; }
.stat { background: var(--black); padding: 24px; }
.stat-num { font-family: 'Bebas Neue', sans-serif; font-size: 42px; line-height: 1; background: var(--grad); -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text; }
.stat-label { font-size: 11px; color: #666; letter-spacing: .08em; text-transform: uppercase; margin-top: 4px; }

/* ---------- forms ---------- */
.form-wrap { max-width: 440px; margin: 60px auto; padding: 40px; background: var(--grey); border: 1px solid var(--border); }
.form-wrap.wide { max-width: 720px; }
label { display: block; font-size: 12px; letter-spacing: .06em; text-transform: uppercase; color: #999; margin: 16px 0 6px; }
input, textarea, select {
  width: 100%; background: var(--black); border: 1px solid var(--border); color: var(--white);
  padding: 12px 14px; font-size: 14px; font-family: 'Archivo', sans-serif; outline: none; transition: border-color .2s;
}
input:focus, textarea:focus, select:focus { border-color: var(--blue); }
textarea { min-height: 120px; resize: vertical; }
.form-row { margin-bottom: 6px; }
.muted { color: var(--muted); font-size: 13px; }

/* ---------- output box ---------- */
.output {
  background: var(--black); border: 1px solid var(--border); border-left: 3px solid var(--blue);
  padding: 22px; white-space: pre-wrap; font-size: 14px; line-height: 1.7; margin-top: 24px;
  min-height: 60px;
}
.mock-banner {
  background: rgba(108,99,255,.08); border: 1px solid var(--border);
  padding: 10px 16px; font-size: 12px; letter-spacing: .04em; color: #aab;
  margin-bottom: 24px;
}

/* ---------- table ---------- */
table { width: 100%; border-collapse: collapse; font-size: 13px; }
th, td { text-align: left; padding: 12px 14px; border-bottom: 1px solid var(--border); }
th { font-size: 11px; letter-spacing: .1em; text-transform: uppercase; color: #888; }
td { color: #ccc; }
.pill { font-size: 11px; padding: 2px 8px; border: 1px solid var(--border); border-radius: 2px; }
.pill.completed { color: #7fe0a0; }
.pill.mocked { color: var(--blue); }
.pill.error { color: #e0506a; }

/* ---------- pricing ---------- */
.plan { background: var(--black); padding: 36px 28px; }
.plan.featured { background: var(--grad); }
.plan-price { font-family: 'Bebas Neue', sans-serif; font-size: 64px; line-height: 1; }
.plan-features { list-style: none; font-size: 13px; color: #999; margin: 18px 0; }
.plan.featured .plan-features { color: rgba(255,255,255,.9); }
.plan-features li { padding: 7px 0; border-bottom: 1px solid var(--border); }
.plan.featured .plan-features li { border-color: rgba(255,255,255,.18); }

@media (max-width: 820px) {
  .nav { padding: 16px 20px; }
  .container { padding: 24px 20px; }
  .grid-2, .grid-3 { grid-template-columns: 1fr; }
  .page-title { font-size: 40px; }
}