/*
 * Torve Site Base - unified design tokens and shared components.
 * Used by homepage, auth pages, and legal pages for visual consistency.
 */

/* ── Design tokens ─────────────────────────────────────────────────── */
:root {
  --t-bg: #08080e;
  --t-bg-elevated: #0e0e16;
  --t-bg-card: #111118;
  --t-bg-input: #16161e;
  --t-border: rgba(255,255,255,.1);
  --t-border-hover: rgba(255,255,255,.12);
  --t-border-focus: rgba(200,164,78,.35);
  --t-text: #e4e4e7;
  --t-text-strong: #ffffff;
  --t-text-muted: #71717a;
  --t-text-subtle: #52525b;
  --t-accent: #c8a44e;
  --t-accent-light: #dbb95c;
  --t-accent-glow: rgba(200,164,78,.15);
  --t-danger: #ef4444;
  --t-success: #22c55e;
  --t-radius-sm: 8px;
  --t-radius: 10px;
  --t-radius-lg: 16px;
  --t-radius-xl: 20px;
  --t-shadow-soft: 0 2px 16px rgba(0,0,0,.3);
  --t-shadow-card: 0 4px 32px rgba(0,0,0,.4);
  --t-transition: .2s ease;
  --t-font: Inter, system-ui, -apple-system, 'Segoe UI', Roboto, sans-serif;
  --t-max-w: 1140px;
}

/* ── FOUTC prevention (flash of untranslated content) ──────────────── */
html.i18n-loading body { opacity: 0 !important; transition: none !important; }
html.i18n-ready body { transition: opacity .2s ease !important; }

/* ── Base body ─────────────────────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
body {
  font-family: var(--t-font);
  background: var(--t-bg);
  color: var(--t-text);
  min-height: 100vh;
  -webkit-font-smoothing: antialiased;
  line-height: 1.6;
}
img, svg { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }

/* ── Shared header ─────────────────────────────────────────────────── */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(8,8,14,.85);
  backdrop-filter: blur(24px);
  -webkit-backdrop-filter: blur(24px);
  border-bottom: 1px solid var(--t-border);
}
.site-header-inner {
  max-width: var(--t-max-w);
  margin: 0 auto;
  padding: 0 24px;
  display: flex;
  align-items: center;
  height: 64px;
}
.site-header-logo {
  height: 56px;
  width: auto;
  flex-shrink: 0;
}
.site-header-nav {
  display: flex;
  gap: 24px;
  margin-left: 32px;
  font-size: 14px;
  font-weight: 500;
  color: var(--t-text-muted);
}
.site-header-nav a {
  color: inherit;
  text-decoration: none;
  transition: color var(--t-transition);
  letter-spacing: .01em;
}
.site-header-nav a:hover { color: var(--t-text-strong); }
.site-header-spacer { flex: 1; }
.site-header-actions {
  display: flex;
  align-items: center;
  gap: 10px;
}

/* ── Shared button system ──────────────────────────────────────────── */
.t-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-family: var(--t-font);
  font-weight: 600;
  font-size: 14px;
  border: none;
  border-radius: var(--t-radius);
  cursor: pointer;
  transition: all var(--t-transition);
  text-decoration: none;
  white-space: nowrap;
  letter-spacing: .01em;
}
.t-btn:disabled { opacity: .45; cursor: not-allowed; }

.t-btn-primary {
  padding: 10px 24px;
  background: linear-gradient(135deg, var(--t-accent), var(--t-accent-light));
  color: #08080e;
  box-shadow: 0 2px 20px var(--t-accent-glow);
}
.t-btn-primary:hover { opacity: .9; box-shadow: 0 4px 28px rgba(200,164,78,.25); }

.t-btn-secondary {
  padding: 10px 24px;
  background: transparent;
  color: var(--t-text-muted);
  border: 1px solid var(--t-border);
}
.t-btn-secondary:hover { color: var(--t-text); border-color: var(--t-border-hover); }

.t-btn-ghost {
  padding: 10px 20px;
  background: transparent;
  color: var(--t-text-muted);
}
.t-btn-ghost:hover { color: var(--t-text); }

.t-btn-lg {
  padding: 14px 32px;
  font-size: 15px;
  border-radius: var(--t-radius);
}

.t-btn-sm {
  padding: 8px 18px;
  font-size: 13px;
}

.t-btn-full { width: 100%; }

/* ── Auth page layout ──────────────────────────────────────────────── */
.auth-shell {
  min-height: calc(100vh - 64px);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 40px 24px;
  background:
    radial-gradient(ellipse at 30% 20%, rgba(200,164,78,.03) 0%, transparent 50%),
    radial-gradient(ellipse at 70% 80%, rgba(30,30,60,.3) 0%, transparent 50%),
    var(--t-bg);
}
.auth-container {
  width: 100%;
  max-width: 900px;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0;
  background: var(--t-bg-card);
  border: 1px solid var(--t-border);
  border-radius: var(--t-radius-xl);
  overflow: hidden;
  box-shadow: var(--t-shadow-card);
}
.auth-form-side {
  padding: 48px 40px;
  display: flex;
  flex-direction: column;
  justify-content: center;
}
.auth-brand-side {
  padding: 48px 40px;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  background:
    linear-gradient(135deg, rgba(200,164,78,.04), rgba(20,20,35,.6)),
    var(--t-bg-elevated);
  border-left: 1px solid var(--t-border);
}
.auth-brand-side h2 {
  font-size: 22px;
  font-weight: 700;
  color: var(--t-text-strong);
  margin-bottom: 10px;
  text-align: center;
}
.auth-brand-side p {
  font-size: 14px;
  color: var(--t-text-muted);
  text-align: center;
  line-height: 1.6;
  max-width: 280px;
}
.auth-brand-features {
  list-style: none;
  margin-top: 24px;
  padding: 0;
}
.auth-brand-features li {
  font-size: 13px;
  color: var(--t-text-muted);
  padding: 8px 0;
  display: flex;
  align-items: center;
  gap: 10px;
}
.auth-brand-features li svg {
  width: 16px;
  height: 16px;
  stroke: var(--t-accent);
  fill: none;
  stroke-width: 2;
  flex-shrink: 0;
}
.auth-form-title {
  font-size: 24px;
  font-weight: 700;
  color: var(--t-text-strong);
  margin-bottom: 6px;
}
.auth-form-subtitle {
  font-size: 14px;
  color: var(--t-text-muted);
  margin-bottom: 28px;
}

/* ── Auth form controls ────────────────────────────────────────────── */
.t-field { margin-bottom: 18px; }
.t-field label {
  display: block;
  font-size: 13px;
  font-weight: 500;
  color: var(--t-text-muted);
  margin-bottom: 6px;
}
.t-field input {
  width: 100%;
  padding: 12px 14px;
  font-size: 15px;
  font-family: var(--t-font);
  color: var(--t-text);
  background: var(--t-bg-input);
  border: 1px solid var(--t-border);
  border-radius: var(--t-radius-sm);
  outline: none;
  transition: border-color var(--t-transition), box-shadow var(--t-transition);
}
.t-field input:focus {
  border-color: var(--t-border-focus);
  box-shadow: 0 0 0 3px rgba(200,164,78,.08);
}
.t-field input::placeholder { color: var(--t-text-subtle); }

.auth-link {
  display: block;
  text-align: center;
  margin-top: 14px;
  font-size: 14px;
  color: var(--t-accent);
  text-decoration: none;
  transition: opacity var(--t-transition);
}
.auth-link:hover { opacity: .8; }
.auth-footer-text {
  margin-top: 20px;
  text-align: center;
  font-size: 14px;
  color: var(--t-text-muted);
}
.auth-footer-text a {
  color: var(--t-accent);
  text-decoration: none;
  font-weight: 500;
}
.auth-footer-text a:hover { text-decoration: underline; }

/* ── Auth alerts ───────────────────────────────────────────────────── */
.t-alert {
  display: none;
  padding: 12px 14px;
  border-radius: var(--t-radius-sm);
  font-size: 14px;
  margin-bottom: 18px;
  line-height: 1.5;
}
.t-alert.visible { display: block; }
.t-alert-error {
  background: rgba(239,68,68,.08);
  border: 1px solid rgba(239,68,68,.15);
  color: #fca5a5;
}
.t-alert-success {
  background: rgba(34,197,94,.08);
  border: 1px solid rgba(34,197,94,.15);
  color: #86efac;
}

/* ── Locale notice ─────────────────────────────────────────────────── */
.locale-notice {
  font-size: 13px;
  color: var(--t-text-muted);
  background: rgba(255,255,255,.02);
  border: 1px solid var(--t-border);
  border-radius: var(--t-radius-sm);
  padding: 10px 14px;
  margin-bottom: 16px;
  line-height: 1.5;
}

/* ── Language switcher ──────────────────────────────────────────────── */
.lang-select {
  padding: 5px 8px;
  font-size: 12px;
  font-family: var(--t-font);
  color: var(--t-text-muted);
  background: transparent;
  border: 1px solid var(--t-border);
  border-radius: 6px;
  outline: none;
  cursor: pointer;
  transition: border-color .2s;
  -webkit-appearance: none;
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='10' height='6'%3E%3Cpath d='M0 0l5 6 5-6z' fill='%2371717a'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 8px center;
  padding-right: 22px;
}
.lang-select:hover { border-color: var(--t-border-hover); color: var(--t-text); }
.lang-select:focus { border-color: var(--t-border-focus); }
.lang-select option { background: #111118; color: #e4e4e7; }

/* ── Mobile nav toggle ─────────────────────────────────────────────── */
.site-header-toggle {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  width: 28px;
  height: 28px;
  position: relative;
}
.site-header-toggle span,
.site-header-toggle span::before,
.site-header-toggle span::after {
  display: block;
  width: 20px;
  height: 2px;
  background: var(--t-text);
  position: absolute;
  left: 4px;
  transition: .25s;
}
.site-header-toggle span { top: 13px; }
.site-header-toggle span::before { content: ''; top: -6px; }
.site-header-toggle span::after { content: ''; top: 6px; }

/* ── Responsive ────────────────────────────────────────────────────── */
@media (max-width: 860px) {
  .site-header-nav {
    display: none;
    flex-direction: column;
    position: absolute;
    top: 64px;
    left: 0;
    right: 0;
    background: rgba(8,8,14,.97);
    border-bottom: 1px solid var(--t-border);
    padding: 16px 24px;
    gap: 14px;
  }
  .site-header-nav.open { display: flex; }
  .site-header-toggle { display: block; }
  .site-header-actions .t-btn-secondary { display: none; }
}
/* Narrow single-column variant for simpler auth flows */
.auth-container-narrow {
  max-width: 440px;
  grid-template-columns: 1fr;
}
.auth-container-narrow .auth-brand-side { display: none; }

@media (max-width: 640px) {
  .auth-container {
    grid-template-columns: 1fr;
    max-width: 440px;
  }
  .auth-brand-side { display: none; }
  .auth-form-side { padding: 36px 24px; }
}