:root {
  --ground: #FAF8F4; --ground-raised: #FFFFFF; --ground-sunken: #F1EDE3;
  --ink: #1D1710; --ink-soft: #6B5F4E; --ink-faint: #726959;
  --accent: #A8501A; --accent-glow: #E08C3E; --accent-soft: #F1E3D2; --line: #E2DCCB;
  --risk: #B0392C;
  --shadow: 0 8px 30px rgba(29, 23, 16, 0.08);
}
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --ground: #14100C; --ground-raised: #1E1811; --ground-sunken: #0E0B08;
    --ink: #F2EDE3; --ink-soft: #B8AD9A; --ink-faint: #877D6B;
    --accent: #E08C3E; --accent-glow: #F5A85C; --accent-soft: #2C1F14; --line: #332A1E;
    --risk: #E0776A;
    --shadow: 0 8px 30px rgba(0, 0, 0, 0.4);
  }
}
:root[data-theme="dark"] {
  --ground: #14100C; --ground-raised: #1E1811; --ground-sunken: #0E0B08;
  --ink: #F2EDE3; --ink-soft: #B8AD9A; --ink-faint: #877D6B;
  --accent: #E08C3E; --accent-glow: #F5A85C; --accent-soft: #2C1F14; --line: #332A1E;
  --risk: #E0776A;
  --shadow: 0 8px 30px rgba(0, 0, 0, 0.4);
}

* { box-sizing: border-box; }
body { margin: 0; background: var(--ground); color: var(--ink); font-family: ui-sans-serif, -apple-system, "Segoe UI", Roboto, Arial, sans-serif; line-height: 1.55; }
.mono { font-family: ui-monospace, Consolas, monospace; }

.nav { padding: 16px 28px; border-bottom: 1px solid var(--line); display: flex; align-items: center; justify-content: space-between; gap: 16px; flex-wrap: wrap; }
.nav-brand { display: inline-flex; align-items: center; gap: 9px; font-weight: 800; font-size: 15px; text-decoration: none; color: var(--ink); }
.nav-brand .mark { color: var(--accent); font-size: 18px; }
.nav-signin { font-size: 13.5px; font-weight: 600; color: var(--ink-soft); text-decoration: none; }
.nav-signin:hover { color: var(--accent); }

.wrap { max-width: 920px; margin: 0 auto; padding: 56px 24px 100px; }

.intro { margin-bottom: 44px; }
.eyebrow { font-family: ui-monospace, Consolas, monospace; font-size: 12px; letter-spacing: .1em; text-transform: uppercase; color: var(--accent); margin: 0 0 14px; }
.intro h1 { font-size: clamp(24px, 3.4vw, 32px); font-weight: 800; letter-spacing: -0.01em; margin: 0 0 14px; text-wrap: balance; }
.sub { color: var(--ink-soft); font-size: 15px; max-width: 60ch; margin: 0; }

.field-block { margin-bottom: 40px; }
.field-label { font-size: 14px; font-weight: 700; margin: 0 0 8px; display: block; }
.field-hint { font-size: 13px; color: var(--ink-soft); margin: 0 0 20px; }
#companyName, #email, .password-field input {
  width: 100%; max-width: 380px; padding: 12px 14px; border: 1px solid var(--line); border-radius: 8px;
  background: var(--ground-raised); color: var(--ink); font-size: 15px; font-family: inherit; box-sizing: border-box;
}
#companyName:focus, #email:focus, .password-field input:focus { outline: none; border-color: var(--accent); }

.password-field { position: relative; max-width: 380px; }
.password-field input { max-width: none; padding-right: 64px; }
.password-toggle {
  position: absolute; right: 6px; top: 50%; transform: translateY(-50%);
  background: transparent; border: none; color: var(--accent); font-size: 12.5px; font-weight: 700;
  font-family: inherit; cursor: pointer; padding: 6px 8px;
}
.password-toggle:hover { text-decoration: underline; }
.field-error { font-size: 12.5px; color: var(--risk, #B0392C); margin: 8px 0 0; }

.picker { display: grid; grid-template-columns: 300px 1fr; gap: 24px; align-items: start; }
@media (max-width: 760px) { .picker { grid-template-columns: 1fr; } }

.theme-list { display: flex; flex-direction: column; gap: 10px; }
.theme-row {
  display: flex; align-items: center; gap: 12px; text-align: left; width: 100%;
  background: var(--ground-raised); border: 1.5px solid var(--line); border-radius: 12px;
  padding: 13px 14px; cursor: pointer; transition: border-color .12s ease, background .12s ease;
}
.theme-row:hover, .theme-row:focus-visible { border-color: var(--accent-glow); outline: none; }
.theme-row.selected { border-color: var(--accent); background: color-mix(in srgb, var(--accent) 7%, var(--ground-raised)); }
.theme-row-dot { width: 12px; height: 12px; border-radius: 50%; flex-shrink: 0; border: 2px solid var(--line); }
.theme-row.selected .theme-row-dot { border-color: var(--accent); background: var(--accent); }
.theme-row-text { min-width: 0; }
.theme-row-name { font-size: 14.5px; font-weight: 800; margin: 0; }
.theme-row-tagline { font-size: 12px; color: var(--ink-soft); margin: 2px 0 0; }

.preview-pane { position: sticky; top: 24px; }
.preview-frame {
  height: 320px; border-radius: 14px; border: 1px solid var(--line); overflow: hidden;
  box-shadow: var(--shadow); position: relative; transition: opacity .12s ease;
}
.preview-frame.swapping { opacity: 0; }
@media (prefers-reduced-motion: reduce) { .preview-frame { transition: none; } }
.preview-callout {
  margin-top: 14px; padding: 14px 18px; background: var(--accent-soft, var(--ground-sunken));
  border: 1px solid var(--accent); border-radius: 10px;
}
.preview-name { font-size: 14px; font-weight: 800; margin: 0 0 4px; }
.preview-unique { font-size: 13px; color: var(--ink); margin: 0; line-height: 1.5; }
.preview-unique::before { content: "★ "; color: var(--accent); }
@media (max-width: 760px) { .preview-pane { position: static; } .preview-frame { height: 260px; } }

.continue-row { display: flex; align-items: center; gap: 16px; }
.btn {
  font-size: 15px; font-weight: 700; padding: 14px 24px; border-radius: 9px; border: none; cursor: pointer;
  background: var(--accent); color: #1A1006; transition: filter .15s ease, opacity .15s ease;
}
.btn:hover:not(:disabled) { filter: brightness(1.08); }
.btn:disabled { opacity: .4; cursor: not-allowed; }
.hint { font-size: 13px; color: var(--ink-soft); margin: 0; }

.site-footer { border-top: 1px solid var(--line); padding: 24px 0; margin-top: 40px; }
.footer-inner { display: flex; justify-content: space-between; align-items: center; flex-wrap: wrap; gap: 12px; font-size: 13px; color: var(--ink-faint); }
.footer-links { display: flex; gap: 18px; }
.footer-links a { color: var(--ink-faint); text-decoration: none; }
.footer-links a:hover { color: var(--accent); }