:root {
  color-scheme: dark;
  --bg: #101111;
  --surface: #191a1a;
  --surface-alt: #222323;
  --text: #f3f3ef;
  --text-secondary: #b5b6b2;
  --text-tertiary: #a0a29d;
  --primary: #f5a466;
  --primary-hover: #ffbc89;
  --danger: #ffaaa4;
  --danger-hover: #ffc3bf;
  --success: #9ccead;
  --border: #555753;
  --border-light: #333532;
  --radius: 20px;
  --radius-sm: 10px;
  --font: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  --mono: "SFMono-Regular", Consolas, "Liberation Mono", monospace;
}

*, *::before, *::after { box-sizing: border-box; }
body { margin: 0; background: var(--bg); color: var(--text); font-family: var(--font); font-size: 16px; line-height: 1.6; -webkit-font-smoothing: antialiased; }
h1, h2, p { margin: 0; }
a { color: var(--primary); text-underline-offset: 4px; }
a:hover { color: var(--primary-hover); }
button, input { font: inherit; }
button, a, input, summary { -webkit-tap-highlight-color: transparent; }
:focus-visible { outline: 2px solid var(--primary); outline-offset: 5px; }
#main-content:focus { outline: none; }
.skip-link { position: fixed; left: 24px; top: -100px; z-index: 10; padding: 12px 20px; background: var(--text); color: var(--bg); border-radius: 8px; }
.skip-link:focus { top: 12px; }
.container { max-width: 1040px; margin: 0 auto; padding: 56px 32px 80px; min-height: calc(100svh - 169px); }
.eyebrow { font: 11px/1.6 var(--mono); letter-spacing: .16em; }
.eyebrow { color: var(--primary); margin-bottom: 18px; }
h1 { font-size: clamp(30px, 4vw, 44px); font-weight: 600; line-height: 1.2; letter-spacing: -.035em; text-wrap: balance; }
.site-header { display: flex; align-items: center; justify-content: space-between; gap: 20px; flex-wrap: wrap; margin-bottom: 32px; }
.site-header h1 { font-size: 28px; }
.user-email { color: var(--text-secondary); font-size: 14px; overflow-wrap: anywhere; }
.form-actions, .consent-actions { display: flex; align-items: center; flex-wrap: wrap; gap: 12px; }
.card { min-width: 0; background: var(--surface); border: 1px solid var(--border-light); border-radius: var(--radius); margin-bottom: 20px; overflow: hidden; scroll-margin-top: 24px; }
.card-header { margin: 0; padding: 24px 28px 0; font-size: 19px; line-height: 1.4; font-weight: 600; letter-spacing: -.02em; }
.card-body { padding: 22px 28px 28px; }
.card > h1 { margin: 28px 28px 16px; }
.card > p { margin: 16px 28px 28px; }
.section { margin-bottom: 24px; }
.section-title { font-size: 14px; color: var(--text-secondary); margin-bottom: 12px; }
.section-description, .consent-intro { color: var(--text-secondary); font-size: 14px; margin-bottom: 20px; }
.btn, .auth-btn, .btn-google { display: inline-flex; align-items: center; justify-content: center; min-height: 46px; padding: 11px 20px; border: 1px solid transparent; border-radius: var(--radius-sm); font: 500 14px/1.5 var(--font); cursor: pointer; text-align: center; text-decoration: none; transition: background-color 160ms ease, border-color 160ms ease, color 160ms ease, transform 160ms ease; }
.btn-primary, .auth-btn { background: var(--text); color: var(--bg); }
.btn-primary:hover, .auth-btn:hover { background: #dcded7; color: var(--bg); }
.btn-secondary, .btn-google { background: transparent; color: var(--text); border-color: var(--border); }
.btn-secondary:hover, .btn-google:hover { background: var(--surface-alt); color: var(--text); border-color: var(--text-secondary); }
.btn-ghost { background: transparent; color: var(--primary); }
.btn-ghost:hover { background: #33261d; }
.btn-danger { background: #382020; border-color: #70433f; color: var(--danger); }
.btn-danger:hover { background: #492926; color: var(--danger-hover); }
.btn-sm { font-size: 13px; padding: 9px 14px; min-height: 44px; }
.btn:active, .auth-btn:active, .btn-google:active { transform: translateY(1px); }
.btn:disabled, .btn-disabled { opacity: .5; cursor: not-allowed; }
.form-group { margin-bottom: 20px; }
.form-group:last-child { margin-bottom: 0; }
label { display: block; font-size: 14px; color: var(--text-secondary); margin-bottom: 8px; }
input:not([type="hidden"]):not([type="checkbox"]) { width: 100%; min-height: 54px; padding: 13px 15px; border: 1px solid var(--border); border-radius: var(--radius-sm); background: var(--bg); color: var(--text); font-size: 16px; transition: border-color 160ms ease; }
input:not([type="checkbox"]):focus { border-color: var(--primary); outline: 2px solid var(--primary); outline-offset: 3px; }
input[readonly] { color: var(--text-secondary) !important; background: var(--surface-alt) !important; }
input[type="checkbox"] { width: 20px; height: 20px; flex: 0 0 20px; accent-color: var(--primary); }
.form-row { display: flex; gap: 12px; align-items: flex-end; flex-wrap: wrap; }
.form-row .form-group { flex: 1; min-width: 160px; margin-bottom: 0; }
.form-hint, .auth-hint { font-size: 13px; line-height: 1.7; color: var(--text-tertiary); margin-top: 10px; }

.info-value { text-align: right; overflow-wrap: anywhere; min-width: 0; }
.mono { font: 12px/1.7 var(--mono); overflow-wrap: anywhere; }
.item-list { list-style: none; margin: 0; padding: 0; }
.item-list li { display: flex; align-items: baseline; flex-wrap: wrap; gap: 8px; padding: 12px 0; border-bottom: 1px solid var(--border-light); font-size: 14px; overflow-wrap: anywhere; }
.item-list li:last-child { border-bottom: 0; }

.alert, .auth-error, .auth-success { padding: 14px 16px; border-radius: var(--radius-sm); font-size: 14px; margin-bottom: 24px; text-align: left; overflow-wrap: anywhere; }
.alert-error, .auth-error { background: #382020; color: var(--danger); border: 1px solid #70433f; }
.alert-success, .auth-success { background: #21382a; color: var(--success); }
.alert-info { background: #35281e; color: var(--primary); }
.consent-app { font-size: 22px; font-weight: 600; margin-bottom: 12px; }
.consent-scopes { padding-left: 20px; margin: 20px 0; }
.consent-scopes li { padding: 6px 0; font-size: 14px; }
.consent-scopes li::marker { color: var(--primary); }
.consent-redirect { font: 12px/1.7 var(--mono); color: var(--text-secondary); overflow-wrap: anywhere; }
.consent-actions { margin-top: 28px; }
.center-page { display: flex; flex-direction: column; align-items: center; justify-content: center; min-height: 56svh; text-align: center; gap: 20px; }
.center-page .logo { font: 18px var(--mono); letter-spacing: .16em; color: var(--primary); }
.center-page p { color: var(--text-secondary); max-width: 420px; }
.auth-page { display: flex; align-items: center; justify-content: center; min-height: 60svh; }
.auth-card { width: 100%; max-width: 420px; padding: 24px 0; text-align: center; animation: arrive 350ms ease-out both; }
.auth-logo { display: block; width: 208px; max-width: 100%; height: auto; margin: 0 auto 32px; }
.auth-card h1 { font-size: clamp(28px, 4vw, 36px); }
.auth-subtitle { color: var(--text-secondary); font-size: 15px; line-height: 1.8; margin: 16px 0 32px; }
.auth-form { display: flex; flex-direction: column; gap: 20px; text-align: left; }
.auth-field { text-align: left; margin: 0; }
.auth-field input { margin-top: 8px; }
.auth-btn, .btn-google { width: 100%; min-height: 52px; }
.auth-divider { display: flex; align-items: center; gap: 16px; margin: 24px 0; font-size: 12px; color: var(--text-tertiary); }
.auth-divider::before, .auth-divider::after { content: ''; height: 1px; background: var(--border-light); flex: 1; }
.auth-back { display: inline-block; margin-top: 24px; padding: 10px; font-size: 14px; }
.auth-checkbox { display: flex; align-items: flex-start; gap: 12px; text-align: left; font-size: 14px; }
.auth-email { color: var(--text); overflow-wrap: anywhere; }
input[name="code"] { font-family: var(--mono); font-size: 24px !important; letter-spacing: .3em; text-align: center; }
summary { cursor: pointer; padding: 12px 0; color: var(--text-secondary); min-height: 44px; }
summary:hover { color: var(--primary); }
.deletion-warning, .logout-explanation { font-size: 14px; color: var(--text-secondary); line-height: 1.8; }
.deletion-warning strong { color: var(--text); }
.deletion-warning p, .logout-explanation { margin-bottom: 16px; }
.deletion-mailto { display: inline-block; margin: 20px 0; }
.deletion-list { padding-left: 20px; }
.inline-form { display: inline; }
.logout-list { margin-top: 16px; }
.footer-note { text-align: center; color: var(--text-tertiary); font-size: 12px; margin-top: 32px; overflow-wrap: anywhere; }
.center-actions { text-align: center; }
.sr-only { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip-path: inset(50%); white-space: nowrap; border: 0; }
@keyframes arrive { from { opacity: 0; transform: translateY(8px); } to { opacity: 1; transform: translateY(0); } }
@media (max-width: 700px) {
  .container { padding: 32px 20px 48px; }
  .card-header { padding: 22px 20px 0; }
  .card-body { padding: 18px 20px 24px; }
  .site-header { align-items: flex-start; }
  .form-row { flex-direction: column; align-items: stretch; }
  .info-value { text-align: left; }
  .auth-page { min-height: 62svh; }
  .auth-card { padding: 16px 0; }
}
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation: none !important; transition: none !important; scroll-behavior: auto !important; }
}
@media (forced-colors: active) {
  .btn, .auth-btn, .alert { border: 1px solid ButtonText; }
}