/**
 * OAO V2 Phase 1 — Information architecture & home shell
 * Additive only. Does not replace legacy page/modals/AI panels.
 * Phase 2 visual polish lives in oao-v2-visual.css (tokens: oao-design-tokens.css).
 */

/* ── Top primary nav ── */
.oao-v2-topnav {
  display: none;
  align-items: center;
  gap: 2px;
  flex-wrap: nowrap;
  justify-content: center;
  max-width: min(560px, 46vw);
  overflow: hidden;
}

.oao-v2-topnav-link {
  appearance: none;
  border: 0;
  background: transparent;
  color: var(--text-color, #121212);
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.03em;
  text-transform: uppercase;
  padding: 6px 8px;
  border-radius: 999px;
  cursor: pointer;
  opacity: 0.72;
  white-space: nowrap;
  flex: 0 0 auto;
}

.oao-v2-topnav-link:hover,
.oao-v2-topnav-link:focus-visible {
  opacity: 1;
  background: rgba(127, 127, 127, 0.12);
  outline: none;
}

.oao-v2-topnav-link.is-active {
  opacity: 1;
  background: var(--btn-hover-bg, #121212);
  color: var(--btn-hover-text, #fff);
}

.oao-v2-menu-btn {
  display: none;
  appearance: none;
  border: 1px solid var(--border-color, #121212);
  background: transparent;
  color: var(--text-color, #121212);
  min-width: 36px;
  min-height: 36px;
  border-radius: 8px;
  cursor: pointer;
  font-size: 16px;
  line-height: 1;
}

.oao-v2-drawer {
  position: fixed;
  inset: 0;
  z-index: 1200;
  display: none;
}

.oao-v2-drawer.open {
  display: block;
}

.oao-v2-drawer-backdrop {
  position: absolute;
  inset: 0;
  background: rgba(0, 0, 0, 0.45);
}

.oao-v2-drawer-panel {
  position: absolute;
  top: 0;
  right: 0;
  width: min(320px, 88vw);
  height: 100%;
  background: var(--panel-bg, #fff);
  color: var(--text-color, #121212);
  border-left: 1px solid var(--border-color, #121212);
  padding: 20px 16px 24px;
  display: flex;
  flex-direction: column;
  gap: 8px;
  box-sizing: border-box;
}

.oao-v2-drawer-title {
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  opacity: 0.6;
  margin: 0 0 8px;
}

.oao-v2-drawer-link {
  appearance: none;
  border: 1px solid var(--border-color, #121212);
  background: transparent;
  color: inherit;
  text-align: left;
  padding: 12px 14px;
  border-radius: 10px;
  font-size: 14px;
  font-weight: 600;
  cursor: pointer;
}

.oao-v2-drawer-close {
  align-self: flex-end;
  appearance: none;
  border: 0;
  background: transparent;
  font-size: 22px;
  cursor: pointer;
  color: inherit;
  line-height: 1;
  margin-bottom: 8px;
}

/* ── Home: one viewport above bottom nav, no page scrollbar ── */
body:has(#pageHome.active) .main-content {
  overflow: hidden !important;
  height: calc(100dvh - 60px - var(--oao-bottomnav-height, 76px)) !important;
  max-height: calc(100dvh - 60px - var(--oao-bottomnav-height, 76px)) !important;
  min-height: 0 !important;
}

#pageHome.active {
  overflow-x: hidden !important;
  overflow-y: hidden !important;
  height: 100% !important;
  max-height: 100% !important;
  min-height: 0 !important;
  justify-content: flex-start !important;
  align-items: stretch !important;
  padding-bottom: 20px !important;
  box-sizing: border-box !important;
}

#pageHome.active:has(.oao-v2-task-panel.open) {
  /* Keep one-screen home; task list scrolls inside the panel */
  overflow-y: hidden !important;
  padding-bottom: 12px !important;
}

#pageHome.active .home-layout.oao-v2-home {
  display: block !important;
  position: relative !important;
  inset: auto !important;
  --oao-home-ai-gap: 48px;
  width: min(560px, calc(100vw - var(--oao-side-panel-width, 400px) - var(--oao-side-inset, 32px) - var(--oao-home-ai-gap) - 48px)) !important;
  max-width: min(560px, calc(100vw - var(--oao-side-panel-width, 400px) - var(--oao-side-inset, 32px) - var(--oao-home-ai-gap) - 48px)) !important;
  min-height: 0 !important;
  margin-top: 16px !important;
  margin-bottom: 0 !important;
  margin-left: auto !important;
  margin-right: calc(var(--oao-side-panel-width, 400px) + var(--oao-side-inset, 32px) + var(--oao-home-ai-gap)) !important;
  padding: 0 0 20px !important;
  pointer-events: auto !important;
  z-index: 1 !important;
  overflow: visible !important;
  text-align: left;
  transition: width 0.3s ease, max-width 0.3s ease, margin-right 0.3s ease;
}

/* AI 折叠后主内容收回右侧留白，避免被遮挡或留空 */
#pageHome.active:has(.ai-home-side-panel.collapsed) .home-layout.oao-v2-home {
  --oao-side-panel-width: 0px;
  --oao-home-ai-gap: 64px;
  width: min(720px, calc(100vw - 96px)) !important;
  max-width: min(720px, calc(100vw - 96px)) !important;
  margin-left: auto !important;
  margin-right: auto !important;
}

/* 登录后首页仅保留右侧 AI 区，不再为左侧 OAO 工具栏预留宽度 */
#pageHome.active.home-authed .home-layout.oao-v2-home {
  width: min(560px, calc(100vw - var(--oao-side-panel-width, 400px) - var(--oao-side-inset, 32px) - var(--oao-home-ai-gap, 48px) - 48px)) !important;
  max-width: min(560px, calc(100vw - var(--oao-side-panel-width, 400px) - var(--oao-side-inset, 32px) - var(--oao-home-ai-gap, 48px) - 48px)) !important;
  margin-left: auto !important;
  margin-right: calc(var(--oao-side-panel-width, 400px) + var(--oao-side-inset, 32px) + var(--oao-home-ai-gap, 48px)) !important;
}

#pageHome.active .section-tag {
  display: none;
}

.oao-v2-hero {
  display: flex;
  flex-direction: column;
  gap: 16px;
  padding: 28px 20px 8px;
  border: 1px solid var(--border-color, #121212);
  border-radius: 16px;
  background: var(--panel-bg, #fff);
}

.oao-v2-kicker {
  margin: 0;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  opacity: 0.55;
}

.oao-v2-hero-title {
  margin: 0;
  font-size: clamp(1.35rem, 3.2vw, 2rem);
  font-weight: 800;
  letter-spacing: 0.04em;
  line-height: 1.25;
}

.oao-v2-hero-lead {
  margin: 0;
  font-size: 15px;
  line-height: 1.7;
  opacity: 0.78;
  max-width: 42em;
}

.oao-v2-ask {
  display: grid;
  gap: 10px;
  margin-top: 8px;
}

.oao-v2-ask label {
  font-size: 13px;
  font-weight: 600;
  opacity: 0.8;
}

.oao-v2-ask-row {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 10px;
  align-items: stretch;
}

#oaoAskInput {
  width: 100%;
  min-height: 72px;
  resize: vertical;
  box-sizing: border-box;
  border: 1px solid var(--border-color, #121212);
  border-radius: 12px;
  padding: 12px 14px;
  font: inherit;
  background: transparent;
  color: inherit;
}

#oaoAskBtn {
  appearance: none;
  border: 1px solid var(--border-color, #121212);
  background: var(--btn-hover-bg, #121212);
  color: var(--btn-hover-text, #fff);
  border-radius: 12px;
  padding: 0 18px;
  font-weight: 700;
  cursor: pointer;
  white-space: nowrap;
  min-width: 112px;
}

#oaoAskBtn:hover {
  opacity: 0.92;
}

.oao-v2-ask-hint {
  margin: 0;
  font-size: 12px;
  opacity: 0.55;
}

.oao-v2-pill-row {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 4px;
}

.oao-v2-pill {
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  padding: 6px 10px;
  border: 1px solid var(--border-color, #121212);
  border-radius: 999px;
  opacity: 0.7;
}

.oao-v2-section {
  margin-top: 28px;
}

.oao-v2-section-head {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 12px;
}

.oao-v2-section-head h2 {
  margin: 0;
  font-size: 1.05rem;
  font-weight: 800;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.oao-v2-section-head p {
  margin: 0;
  font-size: 13px;
  opacity: 0.6;
}

.oao-v2-card-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
}

@media (min-width: 1400px) {
  #pageHome.active .home-layout.oao-v2-home {
    width: min(640px, calc(100vw - var(--oao-side-panel-width, 400px) - var(--oao-side-inset, 32px) - var(--oao-home-ai-gap) - 48px)) !important;
    max-width: min(640px, calc(100vw - var(--oao-side-panel-width, 400px) - var(--oao-side-inset, 32px) - var(--oao-home-ai-gap) - 48px)) !important;
  }

  #pageHome.active .oao-v2-card-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

#pageHome.active .ai-home-welcome {
  padding: 20px 16px 88px;
  overflow: hidden;
}

#pageHome.active .ai-home-welcome .main-subtitle,
#pageHome.active #aiHomeWelcomeTag {
  max-width: 100%;
  overflow-wrap: anywhere;
  word-break: break-word;
  text-align: center;
}

.oao-v2-card {
  appearance: none;
  text-align: left;
  border: 1px solid var(--border-color, #121212);
  background: var(--panel-bg, #fff);
  color: inherit;
  border-radius: 14px;
  padding: 16px 14px;
  cursor: pointer;
  display: flex;
  flex-direction: column;
  gap: 8px;
  min-height: 128px;
  transition: transform 0.15s ease, box-shadow 0.15s ease;
}

.oao-v2-card:hover {
  transform: translateY(-1px);
  box-shadow: 0 6px 18px rgba(0, 0, 0, 0.08);
}

.oao-v2-card-title {
  font-size: 15px;
  font-weight: 800;
  letter-spacing: 0.02em;
}

.oao-v2-card-sub {
  font-size: 12px;
  font-weight: 600;
  opacity: 0.55;
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

.oao-v2-card-desc {
  margin: 0;
  font-size: 13px;
  line-height: 1.5;
  opacity: 0.78;
  flex: 1;
}

.oao-v2-card-status {
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  opacity: 0.55;
}

.oao-v2-card-status.is-live {
  color: #059669;
  opacity: 1;
}

.oao-v2-card-status.is-soon {
  color: #d97706;
  opacity: 1;
}

.oao-v2-task-panel {
  display: none;
  margin-top: 12px;
  border: 1px dashed var(--border-color, #121212);
  border-radius: 12px;
  padding: 14px;
  background: rgba(127, 127, 127, 0.06);
}

.oao-v2-task-panel.open {
  display: block;
}

.oao-v2-task-panel h3 {
  margin: 0 0 6px;
  font-size: 14px;
}

.oao-v2-task-panel p {
  margin: 0;
  font-size: 13px;
  line-height: 1.6;
  opacity: 0.75;
}

.oao-v2-task-list {
  margin: 10px 0 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 8px;
}

.oao-v2-task-list li {
  border: 1px solid var(--border-color, #121212);
  border-radius: 10px;
  padding: 10px 12px;
  font-size: 13px;
}

[data-theme="dark"] .oao-v2-hero,
[data-theme="dark"] .oao-v2-card,
[data-theme="dark"] .oao-v2-drawer-panel {
  background: var(--panel-bg, #1a1a1a);
}

@media (max-width: 900px) {
  .oao-v2-card-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .oao-v2-ask-row {
    grid-template-columns: 1fr;
  }

  #oaoAskBtn {
    min-height: 44px;
  }
}

@media (max-width: 899px) {
  .oao-v2-menu-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
  }
}

@media (max-width: 720px) {
  .topbar-left {
    display: none;
  }

  .oao-v2-card-grid {
    grid-template-columns: 1fr;
  }
}

@media (min-width: 900px) {
  .oao-v2-topnav {
    display: flex;
  }
}

/* Logged-in home used to freeze the old logo canvas; keep V2 shell interactive */
#pageHome.active.home-authed .home-layout.oao-v2-home {
  display: block !important;
  position: relative !important;
  inset: auto !important;
  min-height: calc(100vh - 140px) !important;
  padding: 0 0 48px !important;
  pointer-events: auto !important;
  overflow: visible !important;
  z-index: 1 !important;
  justify-content: initial !important;
  align-items: initial !important;
}

/* Kill legacy centered logo overlay that sits on top of V2 home */
#pageHome.active.home-authed .home-hero-brand {
  display: none !important;
}

/* Keep AI / tool side panels above the scrollable home shell */
#pageHome.active .oao-toolbar-container,
#pageHome.active .ai-home-side-panel,
#pageHome.active .oao-toolbar-toggle,
#pageHome.active .ai-home-toggle {
  position: fixed !important;
  z-index: 50 !important;
}

@media (max-width: 1024px) {
  #pageHome.active .home-layout.oao-v2-home,
  #pageHome.active.home-authed .home-layout.oao-v2-home {
    width: min(920px, calc(100% - 24px)) !important;
    max-width: none !important;
    margin-left: auto !important;
    margin-right: auto !important;
  }

  /* 工具栏可相对排版；AI 交互区保持固定抽屉，避免遮挡主页 */
  #pageHome.active > .oao-toolbar-container,
  #pageHome.active > .oao-toolbar-toggle {
    position: relative !important;
    left: auto !important;
    right: auto !important;
    top: auto !important;
    bottom: auto !important;
    width: min(600px, 100%) !important;
    z-index: 1 !important;
  }

  #pageHome.active > .ai-home-side-panel {
    position: fixed !important;
    z-index: 50 !important;
  }

  #pageHome.active > .ai-home-toggle {
    position: fixed !important;
    z-index: 1002 !important;
  }
}

.topbar-center {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 12px;
  flex: 1;
  min-width: 0;
}

.oao-v2-logo-btn.topbar-logo,
button.oao-v2-logo-btn {
  appearance: none;
  border: 0;
  background: transparent;
  padding: 0;
  cursor: pointer;
  font: inherit;
  color: inherit;
}