/* ============================================================
   Seed Code Chat — Pages
   Sidebar nav · User chip · CLI card · Page shell · About ·
   Profile · Auth (login/signup) · History · Settings page
   ============================================================ */

/* ==================== Page shell ==================== */

/* Static SEO intro shown on index.html only until the app boots
   (and to no-JS crawlers). Replaced by the welcome screen at runtime. */
.seo-intro {
  margin: auto;
  max-width: 640px;
  padding: 48px 24px;
  text-align: center;
  color: var(--text-muted, #a1a1aa);
}
.seo-intro h1 {
  font-size: 1.75rem;
  margin: 0 0 10px;
  color: var(--text, #fafafa);
}
.seo-intro p {
  font-size: 0.98rem;
  line-height: 1.6;
  margin: 0;
}

.page-view {
  height: 100%;
  overflow-y: auto;
}

.page-shell {
  max-width: 880px;
  margin: 0 auto;
  padding: 32px 28px 96px;
}

/* Crawlable SEO intro on about.html (sits above the JS-rendered page). */
.about-seo {
  max-width: 880px;
  margin: 0 auto;
  padding: 24px 28px 0;
  color: var(--text-muted, #a1a1aa);
  font-size: 0.95rem;
  line-height: 1.6;
}
.about-seo strong {
  color: var(--text, #fafafa);
}

.page-head {
  margin-bottom: 24px;
}

.page-head h1 {
  font-size: var(--fs-24);
  letter-spacing: -0.02em;
  display: flex;
  align-items: center;
  gap: 10px;
}

.page-head h1 svg {
  color: var(--brand-strong);
}

.page-head p {
  color: var(--muted);
  font-size: var(--fs-14);
  margin: 6px 0 0;
}

.page-subhead {
  margin: 26px 0 10px;
}

.page-subhead h2 {
  font-size: var(--fs-13);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--muted);
  display: flex;
  align-items: center;
  gap: 8px;
}

.page-subhead h2::after {
  content: "";
  flex: 1;
  height: 1px;
  background: var(--border);
}

.page-actions-row {
  display: flex;
  gap: 8px;
  margin-top: 16px;
  flex-wrap: wrap;
  justify-content: center;
}

/* Composer is hidden on every non-chat route */
.composer-wrap.page-mode,
body.page-mode .composer-wrap {
  display: none;
}

/* ==================== Sidebar nav ==================== */

.sidebar-nav {
  padding: 6px 10px 8px;
  border-bottom: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  gap: 2px;
  flex: none;
}

.side-nav-item {
  display: flex;
  align-items: center;
  gap: 10px;
  width: 100%;
  padding: 8px 12px;
  border-radius: var(--r-md);
  color: var(--muted);
  font-size: var(--fs-13);
  font-weight: 500;
  text-align: left;
  transition: background var(--t-fast), color var(--t-fast);
}

.side-nav-item svg {
  flex: none;
  color: var(--muted-2);
  transition: color var(--t-fast);
}

.side-nav-item:hover {
  background: var(--surface-2);
  color: var(--text);
}

.side-nav-item.active {
  background: var(--brand-dim);
  color: var(--text);
  box-shadow: inset 0 0 0 1px var(--brand-deep);
}

.side-nav-item.active svg {
  color: var(--brand-strong);
}

/* ==================== Sidebar user chip ==================== */

.sidebar-user {
  border-radius: var(--r-md);
  cursor: pointer;
  transition: background var(--t-fast);
}

.sidebar-user:hover,
.sidebar-user:focus-visible {
  background: var(--surface-2);
}

.user-chip {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 8px 10px;
}

.user-avatar {
  width: 32px;
  height: 32px;
  flex: none;
  border-radius: var(--r-md);
  background: var(--brand-dim);
  border: 1px solid rgba(46, 204, 113, 0.3);
  color: var(--brand-strong);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: var(--fs-13);
  overflow: hidden;
}

.user-avatar img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

.user-meta {
  flex: 1;
  min-width: 0;
  display: flex;
  flex-direction: column;
}

.user-name {
  font-size: var(--fs-13);
  font-weight: 600;
  color: var(--text);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.user-sub {
  font-size: var(--fs-11);
  color: var(--muted);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.user-logout {
  width: 28px;
  height: 28px;
}

.user-logout svg {
  color: var(--danger);
}

.user-chip-signin {
  border: 1px solid var(--border);
  background: var(--surface-2);
}

.user-chip-signin .user-avatar {
  color: var(--brand-strong);
}

.user-avatar .seedcode-logo {
  width: 16px;
  height: 16px;
  object-fit: contain;
}
/* ==================== Sidebar CLI card ==================== */

.cli-link {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 9px 10px;
  border-radius: var(--r-md);
  border: 1px solid var(--border);
  background: linear-gradient(180deg, var(--brand-dim), var(--surface-2));
  color: var(--text-2);
  text-decoration: none;
  transition: border-color var(--t-fast), box-shadow var(--t-fast);
}

.cli-link:hover {
  border-color: var(--brand-deep);
  box-shadow: var(--shadow-glow);
  text-decoration: none;
}

.cli-link-icon {
  width: 30px;
  height: 30px;
  flex: none;
  border-radius: var(--r-sm);
  background: var(--surface-3);
  border: 1px solid rgba(46, 204, 113, 0.3);
  color: var(--brand-strong);
  display: flex;
  align-items: center;
  justify-content: center;
}

.cli-link-body {
  flex: 1;
  min-width: 0;
  display: flex;
  flex-direction: column;
}

.cli-link-body strong {
  font-size: var(--fs-12);
  font-weight: 600;
  color: var(--text);
}

.cli-link-body span {
  font-size: var(--fs-11);
  color: var(--muted);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.cli-link-chev {
  color: var(--brand-strong);
  flex: none;
  opacity: 0;
  transform: translateX(-4px);
  transition: opacity var(--t-fast), transform var(--t-fast);
}

.cli-link:hover .cli-link-chev {
  opacity: 1;
  transform: translateX(0);
}

/* ==================== About page ==================== */

.about-page .about-hero {
  text-align: center;
  padding: 24px 0 30px;
}

.about-logo-img {
  width: 72px;
  height: auto;
  margin: 0 auto 18px;
  filter: drop-shadow(0 0 16px var(--brand-glow));
}

.about-hero h1 {
  font-size: var(--fs-30);
  letter-spacing: -0.03em;
}

.about-hero h1 .accent {
  color: var(--brand-strong);
}

.about-tagline {
  color: var(--brand-soft);
  font-weight: 500;
  margin: 6px 0 18px;
}

.about-creds {
  display: flex;
  flex-direction: column;
  gap: 4px;
  color: var(--muted);
  font-size: var(--fs-14);
}

.about-creds strong {
  color: var(--text);
  font-weight: 600;
}

.about-section {
  margin: 0 0 22px;
}

.about-section h2 {
  font-size: var(--fs-13);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--muted);
  margin-bottom: 10px;
  display: flex;
  align-items: center;
  gap: 8px;
}

.about-section h2::after {
  content: "";
  flex: 1;
  height: 1px;
  background: var(--border);
}

.about-section p {
  color: var(--text-2);
  line-height: 1.7;
}

.about-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 12px;
  margin-bottom: 22px;
}

.about-grid .card h3 {
  font-size: var(--fs-14);
  margin-bottom: 10px;
  color: var(--brand-soft);
}

.about-list {
  margin: 0;
  padding-left: 18px;
  color: var(--text-2);
  font-size: var(--fs-13);
  line-height: 1.7;
}

.about-list li::marker {
  color: var(--brand-strong);
}

.cli-card {
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 18px;
  border-radius: var(--r-lg);
  border: 1px solid var(--border-strong);
  background: linear-gradient(180deg, var(--brand-dim), var(--surface-2));
  margin-bottom: 22px;
  flex-wrap: wrap;
}

.cli-card-icon {
  width: 44px;
  height: 44px;
  flex: none;
  border-radius: var(--r-md);
  background: var(--surface-3);
  border: 1px solid rgba(46, 204, 113, 0.3);
  color: var(--brand-strong);
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: var(--shadow-glow);
}

.cli-card-body {
  flex: 1;
  min-width: 220px;
}

.cli-card-body h3 {
  font-size: var(--fs-16);
  margin-bottom: 2px;
}

.cli-card-body p {
  color: var(--muted);
  font-size: var(--fs-13);
  margin: 0;
}

.cli-card-actions {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}

.about-links {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
  justify-content: center;
  margin-bottom: 24px;
}

.about-foot {
  display: flex;
  justify-content: center;
  gap: 16px;
  color: var(--muted-2);
  font-size: var(--fs-12);
}

/* ==================== History page ==================== */

.history-list {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.history-card {
  display: flex;
  align-items: center;
  gap: 12px;
  width: 100%;
  padding: 14px 16px;
  background: var(--surface-2);
  border: 1px solid var(--border);
  border-radius: var(--r-md);
  text-align: left;
  transition: border-color var(--t-base), box-shadow var(--t-base),
    transform var(--t-fast), background var(--t-base);
}

.history-card:hover {
  border-color: var(--brand-deep);
  background: var(--surface-3);
  box-shadow: var(--shadow-glow);
  transform: translateY(-1px);
}

.hc-icon {
  width: 36px;
  height: 36px;
  flex: none;
  border-radius: var(--r-md);
  background: var(--brand-dim);
  border: 1px solid rgba(46, 204, 113, 0.25);
  color: var(--brand-strong);
  display: flex;
  align-items: center;
  justify-content: center;
}

.hc-body {
  flex: 1;
  min-width: 0;
  display: flex;
  flex-direction: column;
}

.hc-title {
  font-weight: 600;
  font-size: var(--fs-14);
  color: var(--text);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.hc-preview {
  color: var(--muted);
  font-size: var(--fs-12);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.hc-meta {
  flex: none;
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  gap: 2px;
  color: var(--muted-2);
  font-size: var(--fs-11);
}

/* ==================== Profile page ==================== */

.profile-page .profile-card {
  margin-bottom: 18px;
}

.profile-main {
  display: flex;
  align-items: center;
  gap: 16px;
  margin-bottom: 18px;
}

.avatar-xl {
  width: 64px;
  height: 64px;
  flex: none;
  border-radius: var(--r-lg);
  background: var(--brand-dim);
  border: 1px solid rgba(46, 204, 113, 0.3);
  color: var(--brand-strong);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: var(--fs-22);
  overflow: hidden;
  box-shadow: var(--shadow-glow);
}

.avatar-xl img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

.profile-info {
  flex: 1;
  min-width: 0;
}

.profile-info h2 {
  font-size: var(--fs-20);
  margin-bottom: 2px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.profile-uname {
  color: var(--brand-soft);
  font-size: var(--fs-13);
  margin-bottom: 6px;
}

.profile-meta {
  display: flex;
  gap: 6px;
  flex-wrap: wrap;
}

.profile-details {
  display: grid;
  grid-template-columns: 130px 1fr;
  gap: 8px 16px;
  margin: 0;
  font-size: var(--fs-13);
}

.profile-details dt {
  color: var(--muted);
}

.profile-details dd {
  margin: 0;
  color: var(--text-2);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.field-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 14px;
}

.avatar-actions {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}

.profile-danger {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  border-color: rgba(248, 113, 113, 0.3);
}

.profile-danger h3 {
  font-size: var(--fs-14);
  color: var(--text);
}

.profile-danger p {
  color: var(--muted);
  font-size: var(--fs-12);
  margin: 2px 0 0;
}

/* ==================== Auth pages ==================== */

.auth-wrap {
  min-height: 100%;
  display: flex;
  align-items: flex-start;
  justify-content: center;
  padding-top: 6vh;
}

.auth-card {
  width: 100%;
  max-width: 420px;
  background: var(--surface-2);
  border: 1px solid var(--border-strong);
  border-radius: var(--r-xl);
  box-shadow: var(--shadow-3);
  padding: 28px;
  animation: sc-fade-up var(--t-med) var(--ease-out);
}

.auth-head {
  text-align: center;
  margin-bottom: 22px;
}

.auth-logo {
  width: 52px;
  height: auto;
  margin: 0 auto 12px;
  filter: drop-shadow(0 0 12px var(--brand-glow));
}

.auth-head h1 {
  font-size: var(--fs-22);
  letter-spacing: -0.02em;
}

.auth-head p {
  color: var(--muted);
  font-size: var(--fs-13);
  margin: 6px 0 0;
}

.opt {
  color: var(--muted-2);
  font-weight: 500;
  font-size: var(--fs-11);
}

.auth-extras {
  display: flex;
  align-items: center;
  margin: 4px 0 14px;
}

.check-line {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: var(--fs-13);
  color: var(--text-2);
  cursor: pointer;
}

.check-line input {
  accent-color: var(--brand-strong);
  width: 15px;
  height: 15px;
}

.form-error {
  margin: 4px 0 12px;
  padding: 9px 12px;
  border-radius: var(--r-sm);
  background: var(--danger-bg);
  border: 1px solid rgba(248, 113, 113, 0.3);
  color: var(--danger);
  font-size: var(--fs-13);
}

.auth-switch {
  text-align: center;
  font-size: var(--fs-13);
  color: var(--muted);
  margin-top: 16px;
}

.auth-switch a {
  color: var(--brand-strong);
  font-weight: 600;
}

.auth-note {
  display: flex;
  align-items: flex-start;
  gap: 8px;
  margin-top: 18px;
  padding: 10px 12px;
  border-radius: var(--r-md);
  background: var(--warning-bg);
  border: 1px solid rgba(245, 158, 11, 0.25);
  color: var(--muted);
  font-size: var(--fs-12);
  line-height: 1.45;
}

.auth-note svg {
  color: var(--warning);
  flex: none;
  margin-top: 2px;
}

/* ==================== Settings page ==================== */

.settings-page {
  display: flex;
  gap: 26px;
  align-items: flex-start;
}

.settings-page-nav {
  width: 208px;
  flex: none;
  position: sticky;
  top: 0;
  display: flex;
  flex-direction: column;
  gap: 2px;
  padding: 4px 0;
}

.sp-nav-label {
  font-size: var(--fs-11);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--muted-2);
  padding: 4px 12px 8px;
}

.sn-btn {
  display: flex;
  align-items: center;
  gap: 10px;
  width: 100%;
  padding: 8px 12px;
  border-radius: var(--r-md);
  color: var(--muted);
  font-size: var(--fs-13);
  font-weight: 500;
  text-align: left;
  transition: background var(--t-fast), color var(--t-fast);
}

.sn-btn svg {
  flex: none;
  color: var(--muted-2);
  transition: color var(--t-fast);
}

.sn-btn .seedcode-logo {
  width: 16px;
  height: 16px;
}

.sn-btn:hover {
  background: var(--surface-2);
  color: var(--text);
}

.sn-btn.active {
  background: var(--brand-dim);
  color: var(--text);
  box-shadow: inset 0 0 0 1px var(--brand-deep);
}

.sn-btn.active svg {
  color: var(--brand-strong);
}

.settings-page-main {
  flex: 1;
  min-width: 0;
  max-width: 620px;
}

.settings-page-main .settings-head {
  padding: 0 0 14px;
  border-bottom: 1px solid var(--border);
  margin-bottom: 18px;
}

.settings-page-main .settings-body {
  overflow: visible;
  padding: 0;
}

/* About block inside settings */
.settings-page-main .about-block {
  text-align: center;
  padding: 8px 0 0;
}

.settings-page-main .about-logo-img {
  width: 60px;
  height: auto;
  margin: 0 auto 12px;
  filter: drop-shadow(0 0 12px var(--brand-glow));
}

.settings-page-main .about-links {
  margin-bottom: 14px;
}

/* ==================== Density (compact) ==================== */

html[data-density="compact"] .message.user {
  margin: 4px 0 12px;
}

html[data-density="compact"] .message.assistant {
  margin: 0 0 14px;
}

html[data-density="compact"] .chat-scroll {
  padding-top: 16px;
}

html[data-density="compact"] .markdown {
  line-height: 1.55;
}

/* ==================== Responsive ==================== */

@media (max-width: 720px) {
  .page-shell {
    padding: 22px 16px 64px;
  }

  .settings-page {
    flex-direction: column;
    gap: 8px;
  }

  .settings-page-nav {
    width: 100%;
    position: static;
    flex-direction: row;
    flex-wrap: wrap;
    gap: 2px;
    padding: 0 0 10px;
  }

  .sp-nav-label {
    display: none;
  }

  .sn-btn {
    width: auto;
    padding: 7px 12px;
    border: 1px solid var(--border);
    border-radius: var(--r-pill);
    background: var(--surface-2);
  }

  .sn-btn.active {
    border-color: var(--brand-deep);
  }

  .settings-page-main {
    max-width: none;
  }

  .field-row {
    grid-template-columns: 1fr;
  }

  .cli-card {
    flex-direction: column;
    align-items: stretch;
    text-align: center;
  }

  .cli-card-icon {
    margin: 0 auto;
  }

  .cli-card-actions {
    justify-content: center;
  }

  .about-foot {
    flex-direction: column;
    gap: 4px;
    text-align: center;
  }

  .profile-details {
    grid-template-columns: 110px 1fr;
  }
}