/* AI Flow — Grok trial campaign / console form (quiet premium) */
:root {
  --af-accent: #3b82f6;
  --af-violet: #7c6bf0;
  --af-cyan: #22d3ee;
  --af-ink: #0f172a;
  --af-muted: #64748b;
  --af-border: rgba(15, 23, 42, 0.1);
  --af-card: #ffffff;
  --af-bg: #f7f8fc;
  --af-ok: #059669;
  --af-warn: #d97706;
  --af-bad: #dc2626;
  --af-info: #2563eb;
  font-family: "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", system-ui, sans-serif;
  color-scheme: light;
}
* { box-sizing: border-box; }
body {
  margin: 0;
  color: var(--af-ink);
  background:
    radial-gradient(ellipse 70% 45% at 12% -8%, color-mix(in srgb, var(--af-violet) 16%, transparent), transparent 62%),
    radial-gradient(ellipse 55% 40% at 92% 0%, color-mix(in srgb, var(--af-accent) 12%, transparent), transparent 58%),
    var(--af-bg);
  line-height: 1.6;
  min-height: 100vh;
}
a { color: var(--af-accent); text-decoration: none; }
a:hover { opacity: 0.88; }
.page { max-width: 52rem; margin: 0 auto; padding: 2rem 1.25rem 4.5rem; }
@media (min-width: 768px) { .page { padding: 2.5rem 1.75rem 5.5rem; } }
.page.wide { max-width: 72rem; }

.topbar { display: flex; align-items: center; justify-content: space-between; gap: 1rem; margin-bottom: 2rem; }
.topbar .home-link { font-size: 0.875rem; color: var(--af-muted); font-weight: 500; }
.topbar .home-link:hover { color: var(--af-ink); opacity: 1; }
.nav-mini { display: flex; flex-wrap: wrap; gap: 0.65rem 1.1rem; font-size: 0.8rem; color: var(--af-muted); align-items: center; }
.nav-mini a { color: inherit; }
.nav-mini a:hover { color: var(--af-violet); opacity: 1; }
.af-lang-toggle {
  border: 1px solid var(--af-border); background: #fff; border-radius: 999px;
  padding: 0.25rem 0.7rem; font-size: 0.75rem; cursor: pointer; color: var(--af-ink);
}

.hero { margin-bottom: 2rem; padding-bottom: 1.75rem; position: relative; }
.hero::after {
  content: ""; position: absolute; left: 0; bottom: 0; width: 4.5rem; height: 2px;
  border-radius: 2px; background: linear-gradient(90deg, var(--af-violet), var(--af-accent), transparent);
}
.brand { display: flex; align-items: center; gap: 0.95rem; margin-bottom: 1rem; }
.brand img { width: 44px; height: 44px; border-radius: 12px; object-fit: contain; background: #fff; padding: 4px; box-shadow: 0 1px 2px rgba(15,23,42,0.06); }
.eyebrow { margin: 0; font-size: 0.72rem; letter-spacing: 0.08em; text-transform: uppercase; color: var(--af-violet); font-weight: 600; }
.hero h1 { margin: 0.15rem 0 0; font-size: clamp(1.55rem, 3vw, 2rem); font-weight: 700; letter-spacing: -0.02em; }
.lead { color: var(--af-muted); margin: 0.85rem 0 0; font-size: 1rem; max-width: 40rem; }

.steps { display: grid; gap: 0.75rem; margin: 1.75rem 0 2rem; }
@media (min-width: 720px) { .steps { grid-template-columns: repeat(3, 1fr); } }
.step {
  background: var(--af-card); border: 1px solid var(--af-border); border-radius: 14px;
  padding: 1rem 1.1rem; box-shadow: 0 1px 2px rgba(15,23,42,0.04);
}
.step .n { font-size: 0.7rem; font-weight: 700; color: var(--af-violet); letter-spacing: 0.06em; }
.step h3 { margin: 0.35rem 0 0.3rem; font-size: 0.95rem; }
.step p { margin: 0; font-size: 0.82rem; color: var(--af-muted); }

.cta-row { display: flex; flex-wrap: wrap; gap: 0.65rem; margin: 1.25rem 0 0.5rem; }
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 0.35rem;
  border-radius: 999px; padding: 0.65rem 1.25rem; font-size: 0.9rem; font-weight: 600;
  border: 1px solid transparent; cursor: pointer; text-decoration: none;
}
.btn.primary { background: linear-gradient(135deg, #6366f1, #3b82f6); color: #fff; }
.btn.primary:hover { opacity: 0.92; }
.btn.ghost { background: #fff; border-color: var(--af-border); color: var(--af-ink); }
.btn.ghost:hover { border-color: var(--af-violet); color: var(--af-violet); opacity: 1; }
.btn:disabled { opacity: 0.55; cursor: not-allowed; }
.note { font-size: 0.8rem; color: var(--af-muted); margin-top: 0.75rem; }

.card {
  background: var(--af-card); border: 1px solid var(--af-border); border-radius: 16px;
  padding: 1.25rem 1.35rem; box-shadow: 0 1px 2px rgba(15,23,42,0.04), 0 10px 28px rgba(15,23,42,0.04);
  margin-bottom: 1.25rem;
}
.card h2 { margin: 0 0 0.85rem; font-size: 1.05rem; }
.field { margin-bottom: 0.95rem; }
.field label { display: block; font-size: 0.8rem; font-weight: 600; margin-bottom: 0.35rem; color: var(--af-ink); }
.field .hint { font-weight: 400; color: var(--af-muted); font-size: 0.75rem; }
.field input, .field select, .field textarea {
  width: 100%; border: 1px solid var(--af-border); border-radius: 10px;
  padding: 0.55rem 0.75rem; font: inherit; background: #fff; color: var(--af-ink);
}
.field textarea { min-height: 88px; resize: vertical; }
.field input:focus, .field select:focus, .field textarea:focus {
  outline: none; border-color: color-mix(in srgb, var(--af-violet) 55%, #94a3b8);
  box-shadow: 0 0 0 3px color-mix(in srgb, var(--af-violet) 18%, transparent);
}
.grid-2 { display: grid; gap: 0.85rem; }
@media (min-width: 640px) { .grid-2 { grid-template-columns: 1fr 1fr; } }

.check-grid { display: flex; flex-wrap: wrap; gap: 0.45rem 0.55rem; }
.check-grid label {
  display: inline-flex; align-items: center; gap: 0.35rem;
  border: 1px solid var(--af-border); border-radius: 999px; padding: 0.35rem 0.7rem;
  font-size: 0.78rem; font-weight: 500; background: #fff; cursor: pointer;
}
.check-grid input { accent-color: var(--af-violet); }
.check-grid label:has(input:checked) {
  border-color: color-mix(in srgb, var(--af-violet) 50%, #94a3b8);
  background: color-mix(in srgb, var(--af-violet) 8%, #fff);
}

.banner {
  border-radius: 12px; padding: 0.75rem 1rem; font-size: 0.85rem; margin-bottom: 1rem;
  border: 1px solid var(--af-border); background: #fff;
}
.banner.ok { border-color: color-mix(in srgb, var(--af-ok) 35%, #e5e7eb); background: #ecfdf5; color: #065f46; }
.banner.warn { border-color: color-mix(in srgb, var(--af-warn) 35%, #e5e7eb); background: #fffbeb; color: #92400e; }
.banner.err { border-color: color-mix(in srgb, var(--af-bad) 35%, #e5e7eb); background: #fef2f2; color: #991b1b; }
.banner.info { border-color: color-mix(in srgb, var(--af-info) 35%, #e5e7eb); background: #eff6ff; color: #1e3a8a; }

.badge {
  display: inline-flex; align-items: center; border-radius: 999px; padding: 0.15rem 0.55rem;
  font-size: 0.72rem; font-weight: 600; border: 1px solid transparent;
}
.badge.pending { background: #fff7ed; color: #c2410c; border-color: #fdba74; }
.badge.approved { background: #ecfdf5; color: #047857; border-color: #6ee7b7; }
.badge.rejected { background: #fef2f2; color: #b91c1c; border-color: #fca5a5; }
.badge.need_info { background: #eff6ff; color: #1d4ed8; border-color: #93c5fd; }

.table-wrap { overflow-x: auto; }
table.apps { width: 100%; border-collapse: collapse; font-size: 0.82rem; }
table.apps th, table.apps td { text-align: left; padding: 0.65rem 0.5rem; border-bottom: 1px solid var(--af-border); vertical-align: top; }
table.apps th { color: var(--af-muted); font-weight: 600; font-size: 0.72rem; text-transform: uppercase; letter-spacing: 0.04em; }
table.apps .actions { display: flex; flex-wrap: wrap; gap: 0.35rem; }
table.apps .actions button, table.apps .actions select {
  font-size: 0.72rem; border-radius: 8px; border: 1px solid var(--af-border); background: #fff; padding: 0.25rem 0.45rem; cursor: pointer;
}
.foot { margin-top: 2.5rem; font-size: 0.78rem; color: var(--af-muted); }
.muted { color: var(--af-muted); font-size: 0.82rem; }
.hidden { display: none !important; }