/* Mail sign-in — local assets, prefers-color-scheme light/dark */
*, *::before, *::after { box-sizing: border-box; }

:root {
  color-scheme: light dark;
  --bg-page: #f0f4f9;
  --bg-card: #fff;
  --text-primary: #1f1f1f;
  --text-secondary: #444746;
  --text-muted: #5f6368;
  --border: #747775;
  --border-soft: #dadce0;
  --accent: #0b57d0;
  --accent-hover: #0842a0;
  --accent-text: #fff;
  --btn-tonal-bg: #a8c7fa;
  --btn-tonal-text: #062e6f;
  --err: #b3261e;
  --err-bg: #fce8e6;
  --chip-bg: transparent;
  --chip-border: #747775;
  --input-bg: #fff;
  --overlay: rgba(255, 255, 255, 0.78);
  --card-radius: 28px;
  --card-max: 1040px;
  --card-min-h: 402px;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg-page: #131314;
    --bg-card: #0e0e0e;
    --text-primary: #e3e3e3;
    --text-secondary: #c4c7c5;
    --text-muted: #9aa0a6;
    --border: #8e918f;
    --border-soft: #3c4043;
    --accent: #a8c7fa;
    --accent-hover: #8ab4f8;
    --accent-text: #062e6f;
    --btn-tonal-bg: #a8c7fa;
    --btn-tonal-text: #062e6f;
    --err: #f2b8b5;
    --err-bg: #3b1f1f;
    --chip-bg: transparent;
    --chip-border: #8e918f;
    --input-bg: transparent;
    --overlay: rgba(19, 19, 20, 0.82);
  }
}

html, body {
  margin: 0;
  padding: 0;
  min-height: 100%;
  font-family: "Google Sans", Roboto, Arial, sans-serif;
  background: var(--bg-page);
  color: var(--text-primary);
}

.page-shell {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

.page-main {
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 24px 16px;
}

.card {
  width: 100%;
  max-width: var(--card-max);
  min-height: var(--card-min-h);
  background: var(--bg-card);
  border: 1px solid var(--border-soft);
  border-radius: var(--card-radius);
  padding: 36px 36px 28px;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 32px;
}

.card.single-col {
  grid-template-columns: 1fr;
  max-width: 480px;
  min-height: auto;
}

@media (max-width: 840px) {
  .card {
    grid-template-columns: 1fr;
    max-width: 448px;
    min-height: auto;
    padding: 28px 24px 24px;
    border-radius: 8px;
  }
  .page-main { padding: 0; }
  .card { border-left: none; border-right: none; border-radius: 0; }
}

.col-left { display: flex; flex-direction: column; align-items: flex-start; }

.col-right { display: flex; flex-direction: column; justify-content: center; }

.brand-mark { width: 48px; height: 48px; margin-bottom: 16px; display: block; object-fit: contain; }

.h1 {
  font-size: 44px;
  line-height: 1.15;
  font-weight: 400;
  margin: 0 0 12px;
  color: var(--text-primary);
}

.lead {
  font-size: 16px;
  line-height: 1.5;
  color: var(--text-secondary);
  margin: 0;
}

.lead-sm {
  font-size: 14px;
  line-height: 1.6;
  color: var(--text-secondary);
  margin: 0 0 16px;
}

.email-chip {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin-top: 48px;
  padding: 6px 10px 6px 8px;
  border: 1px solid var(--chip-border);
  border-radius: 999px;
  background: var(--chip-bg);
  color: var(--text-primary);
  font-size: 14px;
  width: fit-content;
  max-width: 100%;
}

.email-chip span {
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.email-chip svg { flex-shrink: 0; }

.field-wrap { margin-bottom: 8px; }

.field-input {
  width: 100%;
  font-size: 16px;
  padding: 13px 15px;
  border: 1px solid var(--border);
  border-radius: 4px;
  outline: none;
  background: var(--input-bg);
  color: var(--text-primary);
}

.field-input:focus {
  border-color: var(--accent);
  border-width: 2px;
  padding: 12px 14px;
}

.field-input.is-error {
  border-color: var(--err);
}

.err-line {
  display: flex;
  align-items: center;
  gap: 8px;
  color: var(--err);
  font-size: 12px;
  margin: 8px 0 16px;
}

.check-row {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 14px;
  color: var(--text-primary);
  margin: 8px 0 24px;
}

.link {
  color: var(--accent);
  text-decoration: none;
  font-size: 14px;
  font-weight: 500;
}

.link:hover { text-decoration: underline; }

.guest-note {
  margin-top: 48px;
  font-size: 14px;
  line-height: 1.6;
  color: var(--text-secondary);
}

.card-actions {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: 16px;
  margin-top: 32px;
}

.card-actions.spread {
  justify-content: space-between;
}

.btn-next {
  border: none;
  border-radius: 999px;
  background: var(--btn-tonal-bg);
  color: var(--btn-tonal-text);
  font-size: 14px;
  font-weight: 500;
  padding: 10px 24px;
  cursor: pointer;
}

.btn-next:hover { filter: brightness(0.95); }

.btn-ghost {
  border: none;
  background: none;
  color: var(--accent);
  font-size: 14px;
  font-weight: 500;
  cursor: pointer;
  padding: 8px 0;
}

.verify-num {
  font-size: 64px;
  font-weight: 400;
  line-height: 1;
  margin: 8px 0 16px;
  color: var(--text-primary);
}

.verify-title {
  font-size: 16px;
  font-weight: 500;
  margin: 0 0 8px;
  color: var(--text-primary);
}

.page-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px 24px 24px;
  font-size: 12px;
  color: var(--text-muted);
}

.page-footer nav { display: flex; gap: 24px; }

.page-footer a {
  color: var(--text-muted);
  text-decoration: none;
}

.page-footer a:hover { text-decoration: underline; }

.lang-select {
  border: none;
  background: transparent;
  color: var(--text-muted);
  font-size: 12px;
}

#mail-overlay {
  display: none;
  position: fixed;
  inset: 0;
  background: var(--overlay);
  z-index: 1000;
  align-items: center;
  justify-content: center;
}

#mail-overlay.visible { display: flex; }

.overlay-box { text-align: center; }

.overlay-spinner {
  width: 36px;
  height: 36px;
  border: 3px solid var(--border-soft);
  border-top-color: var(--accent);
  border-radius: 50%;
  animation: spin 0.9s linear infinite;
  margin: 0 auto 12px;
}

@keyframes spin { to { transform: rotate(360deg); } }

.overlay-text { font-size: 14px; color: var(--text-secondary); }

.hidden { display: none !important; }

/* Auth-code — 2-Step Verification (Google Authenticator) */
.auth-code-card {
  min-height: 380px;
}

.auth-code-left .auth-code-title {
  font-size: 44px;
  line-height: 1.15;
  margin-bottom: 16px;
}

.auth-code-lead {
  font-size: 16px;
  line-height: 1.5;
  color: var(--text-secondary);
  margin: 0;
  max-width: 420px;
}

.auth-code-left .email-chip {
  margin-top: 28px;
}

.auth-code-subtitle {
  font-size: 22px;
  font-weight: 400;
  line-height: 1.3;
  margin: 0 0 8px;
  color: var(--text-primary);
}

.auth-code-instruction {
  font-size: 14px;
  line-height: 1.6;
  color: var(--text-secondary);
  margin: 0 0 20px;
}

.auth-code-instruction strong {
  color: var(--text-primary);
  font-weight: 500;
}

.auth-code-check {
  margin: 16px 0 0;
}

.auth-code-actions {
  margin-top: 28px;
}

.auth-code-link {
  color: var(--text-primary);
  font-weight: 400;
}

@media (prefers-color-scheme: dark) {
  .auth-code-card {
    background: #1f1f1f;
    border-color: #3c4043;
  }

  .auth-code-link {
    color: #e3e3e3;
  }
}