/* ──────────────────────────────────────────────────────────────────────
 * Hero animation — faithful Projelli replica.
 * Layout matches the real desktop app screenshot: macOS chrome, top
 * toolbar (workspace dropdown + ⌘K), two-tier left sidebar (workspace
 * nav + file list), tab bar with formatting toolbar, AI chat sub-header
 * (model badge + Ask my workspace + Export), chat content with sender
 * timestamps, mic + coral send button, bottom status bar.
 *
 * Color tokens lifted from src/styles/globals.css:
 *   primary  hsl(6 100% 72%)   #FF8B7E   (coral)
 *   border   hsl(214 32% 91%)  #E2E8F0
 *   muted    hsl(210 40% 96%)  #F1F5F9
 *   muted-fg hsl(215 16% 47%)  #64748B
 * ────────────────────────────────────────────────────────────────────── */

.hero-anim {
  --bg: #FFFFFF;
  --bg-soft: #F8FAFC;
  --bg-sidebar: #F8FAFC;
  --bg-tab: #F1F5F9;
  --border: #E2E8F0;
  --border-strong: #CBD5E1;
  --text: #0F172A;
  --text-muted: #64748B;
  --text-subtle: #94A3B8;
  --accent-coral: #FF8B7E;
  --accent-coral-soft: #FFE5E1;
  --accent-blue: #3B82F6;
  --shadow: 0 24px 56px rgba(15, 23, 42, 0.18);

  position: relative;
  width: 100%;
  aspect-ratio: 16 / 10;
  background: var(--bg);
  border-radius: 12px;
  box-shadow: var(--shadow);
  overflow: hidden;
  font-family: -apple-system, "SF Pro Text", "Inter", system-ui, sans-serif;
  color: var(--text);
  font-size: 11px;
  line-height: 1.45;
  isolation: isolate;
  user-select: none;
  display: flex;
  flex-direction: column;
}

/* ── macOS title bar ──────────────────────────────────────────────── */
.hero-anim__chrome {
  height: 24px;
  background: linear-gradient(180deg, #ECECEC, #DADADA);
  border-bottom: 1px solid rgba(0, 0, 0, 0.08);
  display: flex;
  align-items: center;
  padding: 0 10px;
  position: relative;
  flex-shrink: 0;
}
.hero-anim__lights { display: flex; gap: 6px; }
.hero-anim__light { width: 10px; height: 10px; border-radius: 50%; }
.hero-anim__light--close { background: #FF5F57; }
.hero-anim__light--min   { background: #FEBC2E; }
.hero-anim__light--max   { background: #28C840; }
.hero-anim__title {
  position: absolute;
  left: 0; right: 0;
  text-align: center;
  font-size: 10.5px;
  font-weight: 500;
  color: rgba(0, 0, 0, 0.55);
  pointer-events: none;
}

/* ── Top toolbar ──────────────────────────────────────────────────── */
.hero-anim__topbar {
  height: 32px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 10px 0 12px;
  background: var(--bg);
  border-bottom: 1px solid var(--border);
  flex-shrink: 0;
}
.hero-anim__workspace-pill {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 3px 8px;
  border-radius: 6px;
  font-weight: 500;
  font-size: 11.5px;
  color: var(--text);
}
.hero-anim__workspace-pill svg { width: 12px; height: 12px; opacity: 0.85; }
.hero-anim__caret-down {
  font-size: 9px;
  color: var(--text-muted);
  margin-left: 1px;
}
.hero-anim__topbar-right {
  display: flex;
  align-items: center;
  gap: 10px;
  color: var(--text-muted);
}
.hero-anim__icon-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
}
.hero-anim__icon-btn svg { width: 13px; height: 13px; }
.hero-anim__kbd {
  font-size: 10.5px;
  letter-spacing: 0.02em;
}

/* ── Body grid: sidebar | main ───────────────────────────────────── */
.hero-anim__body {
  display: grid;
  grid-template-columns: 158px 1fr;
  flex: 1;
  min-height: 0;
}

/* ── Sidebar ─────────────────────────────────────────────────────── */
.hero-anim__sidebar {
  background: var(--bg-sidebar);
  border-right: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  min-height: 0;
}
.hero-anim__sidebar-section {
  padding: 6px 5px 4px;
  border-bottom: 1px solid var(--border);
  flex-shrink: 0;
}
.hero-anim__sidebar-head {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 0 5px 4px;
  font-size: 8.5px;
  font-weight: 700;
  letter-spacing: 0.08em;
  color: var(--text-subtle);
}
.hero-anim__sidebar-collapse {
  font-size: 10px;
  color: var(--text-subtle);
}
.hero-anim__nav {
  display: flex;
  flex-direction: column;
  gap: 0;
}
.hero-anim__nav-item {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 2px 5px;
  border-radius: 3px;
  font-size: 10px;
  line-height: 1.3;
  color: var(--text);
}
.hero-anim__nav-item svg { width: 10px; height: 10px; opacity: 0.7; flex-shrink: 0; }
.hero-anim__nav-item--active {
  background: rgba(15, 23, 42, 0.05);
  font-weight: 500;
}
.hero-anim__nav-item--active svg { opacity: 1; }

.hero-anim__sidebar-files {
  padding: 6px 5px 4px;
  flex: 1;
  display: flex;
  flex-direction: column;
  min-height: 0;
}
.hero-anim__files-head {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 0 5px 3px;
  font-size: 10px;
  font-weight: 600;
  color: var(--text);
  flex-shrink: 0;
}
.hero-anim__files-icons svg { width: 10px; height: 10px; color: var(--text-muted); }
.hero-anim__files-actions {
  display: flex;
  gap: 3px;
  padding: 0 3px 4px;
  flex-wrap: nowrap;
  overflow: hidden;
  flex-shrink: 0;
}
.hero-anim__chip {
  font-size: 9px;
  padding: 1px 4px;
  border: 1px solid var(--border);
  border-radius: 3px;
  color: var(--text-muted);
  background: var(--bg);
  white-space: nowrap;
}
.hero-anim__file-list {
  display: flex;
  flex-direction: column;
  flex: 1;
  min-height: 0;
  overflow: hidden;
}
.hero-anim__file {
  display: flex;
  align-items: center;
  gap: 5px;
  padding: 2px 5px;
  border-radius: 3px;
  font-size: 10px;
  line-height: 1.4;
  color: var(--text);
  position: relative;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  flex-shrink: 0;
}
.hero-anim__file svg { width: 10px; height: 10px; flex-shrink: 0; opacity: 0.6; }
.hero-anim__file > span {
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.hero-anim__file--active {
  background: rgba(15, 23, 42, 0.06);
  font-weight: 500;
}
.hero-anim__file--active svg { opacity: 1; }
.hero-anim__file--new {
  animation: heroFilePop 0.7s cubic-bezier(0.34, 1.56, 0.64, 1) both;
}
@keyframes heroFilePop {
  from {
    opacity: 0;
    transform: translateY(-6px) scale(0.94);
    background: var(--accent-coral-soft);
  }
  60% { background: rgba(255, 139, 126, 0.18); }
  to {
    opacity: 1;
    transform: translateY(0) scale(1);
    background: transparent;
  }
}
.hero-anim__sidebar-bottom {
  padding: 6px 8px 8px;
  border-top: 1px solid var(--border);
}
.hero-anim__open-desktop {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  font-size: 10.5px;
  color: var(--text);
}
.hero-anim__open-desktop svg { width: 11px; height: 11px; }

/* ── Main panel ──────────────────────────────────────────────────── */
.hero-anim__main {
  display: flex;
  flex-direction: column;
  background: var(--bg);
  min-width: 0;
  min-height: 0;
}

/* Tab bar = file tabs (left) + formatting toolbar (right) */
.hero-anim__tabbar {
  display: grid;
  grid-template-columns: minmax(0, auto) 1fr;
  gap: 6px;
  align-items: end;
  background: var(--bg-tab);
  border-bottom: 1px solid var(--border);
  padding: 0 8px;
  height: 28px;
  flex-shrink: 0;
}
.hero-anim__tabs {
  display: flex;
  gap: 1px;
  align-items: end;
  height: 100%;
  min-width: 0;
}
.hero-anim__tab {
  display: flex;
  align-items: center;
  gap: 5px;
  padding: 4px 10px;
  font-size: 10.5px;
  color: var(--text-muted);
  background: transparent;
  border: 1px solid transparent;
  border-radius: 5px 5px 0 0;
  white-space: nowrap;
  height: 22px;
}
.hero-anim__tab svg { width: 10px; height: 10px; opacity: 0.7; }
.hero-anim__tab--active {
  background: var(--bg);
  border-color: var(--border);
  border-bottom-color: var(--bg);
  color: var(--text);
  font-weight: 500;
  margin-bottom: -1px;
}
.hero-anim__tab--enter {
  animation: heroTabSlide 0.45s cubic-bezier(0.4, 0, 0.2, 1) both;
}
@keyframes heroTabSlide {
  from { opacity: 0; transform: translateY(6px); }
  to   { opacity: 1; transform: translateY(0); }
}
.hero-anim__pencil {
  font-size: 9px;
  color: var(--text-subtle);
  margin-left: 2px;
}

.hero-anim__toolbar {
  display: flex;
  align-items: center;
  gap: 4px;
  height: 22px;
  font-size: 10px;
  color: var(--text-muted);
  white-space: nowrap;
  overflow: hidden;
}
.hero-anim__t-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 14px;
  height: 18px;
  padding: 0 4px;
  border-radius: 3px;
  color: var(--text-muted);
}
.hero-anim__t-btn svg { width: 10px; height: 10px; }
.hero-anim__t-btn strong, .hero-anim__t-btn em {
  font-size: 10px;
  color: var(--text);
  font-weight: 700;
  font-style: normal;
}
.hero-anim__t-btn em { font-style: italic; font-weight: 500; }
.hero-anim__t-sep {
  width: 1px;
  height: 12px;
  background: var(--border);
  margin: 0 2px;
}
.hero-anim__t-spacer { flex: 1; }
.hero-anim__t-text {
  font-size: 10px;
  color: var(--text-muted);
  padding: 0 4px;
}

/* Content swap: chat OR editor pane */
.hero-anim__content {
  flex: 1;
  display: flex;
  flex-direction: column;
  min-height: 0;
  position: relative;
  overflow: hidden;
}
.hero-anim__pane {
  position: absolute;
  inset: 0;
  display: flex;
  flex-direction: column;
  opacity: 0;
  transition: opacity 0.35s ease;
  pointer-events: none;
  min-height: 0;
}
.hero-anim__pane--active {
  opacity: 1;
  pointer-events: auto;
}

/* Sub-header: file path strip just above content */
.hero-anim__subhead {
  padding: 4px 14px;
  border-bottom: 1px solid var(--border);
  background: var(--bg);
  flex-shrink: 0;
}
.hero-anim__subhead-file {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  font-size: 10.5px;
  color: var(--text);
}
.hero-anim__subhead-file svg { width: 10px; height: 10px; opacity: 0.7; }

/* ── Chat header: title + model badge + actions ───────────────────── */
.hero-anim__chat-header {
  padding: 10px 16px 8px;
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 12px;
  flex-shrink: 0;
}
.hero-anim__chat-title {
  font-size: 13px;
  font-weight: 600;
  color: var(--text);
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
}
.hero-anim__model-badge {
  font-size: 10px;
  font-weight: 400;
  color: var(--text-muted);
}
.hero-anim__chat-meta {
  font-size: 10px;
  color: var(--text-subtle);
  margin-top: 1px;
}
.hero-anim__chat-actions {
  display: flex;
  gap: 6px;
  flex-shrink: 0;
}
.hero-anim__pill-btn {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 4px 8px;
  border: 1px solid var(--border);
  border-radius: 5px;
  background: var(--bg);
  font-size: 10px;
  color: var(--text);
  white-space: nowrap;
}
.hero-anim__pill-btn svg { width: 10px; height: 10px; opacity: 0.8; }

/* ── Messages ─────────────────────────────────────────────────────── */
.hero-anim__messages {
  flex: 1;
  overflow: hidden;
  padding: 4px 16px 8px;
  display: flex;
  flex-direction: column;
  gap: 6px;
  min-height: 0;
}
.hero-anim__msg-meta {
  font-size: 9.5px;
  color: var(--text-subtle);
  display: flex;
  gap: 6px;
}
.hero-anim__msg-meta--right { align-self: flex-end; }
.hero-anim__msg {
  max-width: 78%;
  font-size: 11px;
  line-height: 1.5;
}
.hero-anim__msg--user {
  align-self: flex-end;
  background: var(--accent-coral);
  color: white;
  padding: 6px 10px;
  border-radius: 10px 10px 2px 10px;
}
.hero-anim__msg--assistant {
  align-self: flex-start;
  background: #EFF1F5;
  color: var(--text);
  padding: 8px 12px;
  border-radius: 8px;
  white-space: pre-wrap;
  word-break: break-word;
  max-width: 70%;
}
.hero-anim__msg--assistant strong {
  font-weight: 700;
  color: var(--text);
  display: inline-block;
  margin-bottom: 1px;
}
.hero-anim__caret {
  display: inline-block;
  width: 5px;
  height: 11px;
  background: var(--accent-coral);
  vertical-align: -2px;
  margin-left: 1px;
  animation: heroCaretBlink 0.8s steps(2) infinite;
}
@keyframes heroCaretBlink { 50% { opacity: 0; } }

.hero-anim__thinking-row {
  display: flex;
  align-items: center;
  gap: 8px;
  align-self: flex-start;
}
.hero-anim__thinking {
  display: inline-flex;
  gap: 4px;
  padding: 6px 10px;
  background: #EFF1F5;
  border-radius: 8px;
}
.hero-anim__thinking span {
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background: var(--text);
  animation: heroThinkingDots 1.2s ease-in-out infinite;
}
.hero-anim__thinking span:nth-child(2) { animation-delay: 0.15s; }
.hero-anim__thinking span:nth-child(3) { animation-delay: 0.30s; }
@keyframes heroThinkingDots {
  0%, 60%, 100% { opacity: 0.3; transform: scale(0.85); }
  30%           { opacity: 1;   transform: scale(1); }
}
.hero-anim__stop-btn {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 3px 7px;
  border: 1px solid var(--border);
  border-radius: 4px;
  background: var(--bg);
  font-size: 10px;
  color: var(--text);
}
.hero-anim__stop-btn::before {
  content: '';
  display: inline-block;
  width: 7px;
  height: 7px;
  background: var(--text);
  border-radius: 1px;
}

/* ── Chat input area ──────────────────────────────────────────────── */
.hero-anim__input-wrap {
  border-top: 1px solid var(--border);
  padding: 4px 12px 8px;
  background: var(--bg);
  flex-shrink: 0;
}
.hero-anim__input-meta {
  display: flex;
  justify-content: flex-end;
  gap: 6px;
  font-size: 9.5px;
  color: var(--text-subtle);
  padding: 2px 4px 4px;
}
.hero-anim__input {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 6px 10px;
  border: 1px solid var(--border);
  border-radius: 6px;
  background: var(--bg);
}
.hero-anim__input-text {
  flex: 1;
  font-size: 11px;
  color: var(--text);
  min-height: 16px;
  display: flex;
  align-items: center;
}
.hero-anim__input-text:empty::before {
  content: 'Type your message... (Enter to send, Shift+Enter for new line)';
  color: var(--text-subtle);
}
.hero-anim__mic { color: var(--text-muted); display: inline-flex; }
.hero-anim__mic svg { width: 12px; height: 12px; }
.hero-anim__send-btn {
  width: 22px;
  height: 22px;
  border-radius: 50%;
  background: var(--accent-coral);
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  flex-shrink: 0;
}
.hero-anim__send-btn svg { width: 11px; height: 11px; }

/* ── Grid view pane ───────────────────────────────────────────────── */
.hero-anim__breadcrumb {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 8px 16px;
  font-size: 11px;
  color: var(--text);
  border-bottom: 1px solid var(--border);
  flex-shrink: 0;
}
.hero-anim__breadcrumb svg { width: 12px; height: 12px; color: var(--text-muted); }
.hero-anim__grid {
  flex: 1;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 4px 6px;
  padding: 14px 16px;
  align-content: start;
  overflow: hidden;
}
.hero-anim__grid-cell {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 4px;
  padding: 8px 4px;
  border-radius: 6px;
  font-size: 10.5px;
  color: var(--text);
  text-align: center;
  position: relative;
  transition: background 0.2s ease, transform 0.2s ease;
}
.hero-anim__grid-cell--target {
  background: rgba(59, 130, 246, 0.12);
  outline: 2px dashed var(--accent-blue);
  outline-offset: -2px;
}
.hero-anim__grid-cell--vanish {
  animation: heroGridDrop 0.5s ease forwards;
}
@keyframes heroGridDrop {
  to { opacity: 0; transform: scale(0.6); }
}
.hero-anim__grid-icon {
  width: 38px;
  height: 38px;
  flex-shrink: 0;
}
.hero-anim__grid-icon--folder { color: #60A5FA; }
.hero-anim__grid-icon--file   { color: var(--text-muted); }
.hero-anim__grid-cell > span {
  max-width: 100%;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

/* ── Whiteboard pane ──────────────────────────────────────────────── */
.hero-anim__wb-toolbar {
  display: flex;
  align-items: center;
  gap: 4px;
  padding: 6px 10px;
  border-bottom: 1px solid var(--border);
  background: var(--bg);
  flex-shrink: 0;
  height: 32px;
}
.hero-anim__wb-tool {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 22px;
  height: 22px;
  border-radius: 4px;
  color: var(--text-muted);
  cursor: default;
}
.hero-anim__wb-tool svg { width: 13px; height: 13px; }
.hero-anim__wb-tool--active {
  background: rgba(15, 23, 42, 0.08);
  color: var(--text);
}
.hero-anim__wb-tool-sep {
  width: 1px;
  height: 14px;
  background: var(--border);
  margin: 0 4px;
}
.hero-anim__wb-canvas-wrap {
  flex: 1;
  min-height: 0;
  background:
    linear-gradient(var(--border) 1px, transparent 1px) 0 0 / 24px 24px,
    linear-gradient(90deg, var(--border) 1px, transparent 1px) 0 0 / 24px 24px,
    #FCFCFD;
  background-blend-mode: normal;
  position: relative;
  overflow: hidden;
}
.hero-anim__wb-canvas {
  width: 100%;
  height: 100%;
  display: block;
}
.hero-anim__wb-canvas path[data-anim="wb-path"] {
  /* JS sets stroke-dasharray + stroke-dashoffset to the full path length
     before drawing, then animates dashoffset to 0 to reveal the stroke. */
  transition: stroke-dashoffset 2.4s linear;
}

/* ── Drag ghost (file card following the cursor) ─────────────────── */
.hero-anim__drag-ghost {
  position: absolute;
  display: inline-flex;
  align-items: center;
  gap: 5px;
  padding: 4px 8px;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 5px;
  font-size: 10.5px;
  color: var(--text);
  box-shadow: 0 6px 16px rgba(15, 23, 42, 0.18);
  pointer-events: none;
  z-index: 9;
  opacity: 0;
  transition: top 0.7s cubic-bezier(0.4, 0, 0.2, 1),
              left 0.7s cubic-bezier(0.4, 0, 0.2, 1),
              opacity 0.2s ease;
  transform: translate(-50%, -50%);
}
.hero-anim__drag-ghost svg { width: 11px; height: 11px; opacity: 0.7; }
.hero-anim__drag-ghost--visible { opacity: 1; }

/* ── Bottom status bar ────────────────────────────────────────────── */
.hero-anim__statusbar {
  height: 22px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 0 12px;
  background: var(--bg-tab);
  border-top: 1px solid var(--border);
  font-size: 10px;
  color: var(--text-muted);
  flex-shrink: 0;
}
.hero-anim__status-left,
.hero-anim__status-right {
  display: flex;
  align-items: center;
  gap: 5px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.hero-anim__status-sep,
.hero-anim__status-dot { color: var(--text-subtle); }

/* ── Floating cursor ──────────────────────────────────────────────── */
.hero-anim__cursor {
  position: absolute;
  width: 16px;
  height: 16px;
  pointer-events: none;
  z-index: 10;
  transition: top 0.7s cubic-bezier(0.4, 0, 0.2, 1),
              left 0.7s cubic-bezier(0.4, 0, 0.2, 1),
              opacity 0.3s;
  opacity: 0;
}
.hero-anim__cursor--visible { opacity: 1; }
.hero-anim__cursor svg {
  width: 100%;
  height: 100%;
  filter: drop-shadow(0 1px 2px rgba(0, 0, 0, 0.4));
}
.hero-anim__cursor::after {
  content: '';
  position: absolute;
  inset: -8px;
  border-radius: 50%;
  border: 2px solid var(--accent-coral);
  opacity: 0;
  transform: scale(0.6);
}
.hero-anim__cursor--clicking::after {
  animation: heroClickRipple 0.55s ease-out;
}
@keyframes heroClickRipple {
  0%   { opacity: 0.85; transform: scale(0.6); }
  100% { opacity: 0;    transform: scale(2.2); }
}

/* ── Reduced motion: kill animations, show a static after-frame ──── */
@media (prefers-reduced-motion: reduce) {
  .hero-anim__cursor,
  .hero-anim__caret,
  .hero-anim__thinking span,
  .hero-anim__file--new,
  .hero-anim__tab--enter {
    animation: none !important;
  }
}