/* === Personal Site — Sasha Reyes ============================================
 * Three-region layout:
 *   - Top tab bar (full width)
 *   - Left chat sidebar (dark)
 *   - Main pane: folder tree + content (light, dot grid)
 * ============================================================================ */

:root {
  /* Dark sidebar palette */
  --sidebar-bg: #0a0a0a;
  --sidebar-bg-2: #131211;
  --sidebar-border: #1f1d1c;
  --sidebar-text: #d6d3d1;
  --sidebar-text-dim: #78716c;
  --sidebar-text-bright: #f5f5f4;

  /* Light content palette */
  --content-bg: #faf7f2;
  --content-bg-2: #f3efe7;
  --content-border: #e7e2d8;
  --content-text: #1c1917;
  --content-text-dim: #57534e;
  --content-text-soft: #78716c;

  /* Accent */
  --accent: oklch(0.6 0.19 22);
  --accent-soft: oklch(0.6 0.19 22 / 0.12);
  --accent-fg: #ffffff;

  /* Card */
  --card-bg: #ffffff;
  --card-shadow:
    0 1px 2px rgba(28, 25, 23, 0.04),
    0 8px 24px -8px rgba(28, 25, 23, 0.12),
    0 24px 48px -16px rgba(28, 25, 23, 0.08);
  --card-radius: 6px;

  /* Typography */
  --font-serif: "Instrument Serif", "EB Garamond", Georgia, serif;
  --font-sans: "Geist", -apple-system, BlinkMacSystemFont, "Segoe UI", system-ui, sans-serif;
  --font-mono: "JetBrains Mono", "SF Mono", Menlo, Consolas, monospace;

  /* Sizing */
  --sidebar-w: 320px;
  --tree-w: 260px;
  --tab-h: 40px;
}

* { box-sizing: border-box; }

html, body, #root {
  margin: 0;
  padding: 0;
  height: 100%;
  overflow: hidden;
}

body {
  font-family: var(--font-sans);
  font-size: 14px;
  color: var(--content-text);
  background: var(--content-bg);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

/* === App shell =========================================================== */

.app {
  display: grid;
  grid-template-columns: var(--sidebar-w) 1fr;
  grid-template-rows: 100vh;
  height: 100vh;
  width: 100vw;
}

/* === Chat Sidebar ======================================================== */

.sidebar {
  background: var(--sidebar-bg);
  color: var(--sidebar-text);
  display: flex;
  flex-direction: column;
  border-right: 1px solid var(--sidebar-border);
  overflow: hidden;
}

.sidebar-header {
  padding: 18px 20px 14px;
  border-bottom: 1px solid var(--sidebar-border);
}

.sidebar-brand {
  display: flex;
  align-items: center;
  gap: 10px;
}

.sidebar-brand-mark {
  width: 22px;
  height: 22px;
  border-radius: 4px;
  background: var(--accent);
  display: grid;
  place-items: center;
  color: var(--accent-fg);
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 600;
  letter-spacing: -0.02em;
}

.sidebar-name {
  font-family: var(--font-serif);
  font-size: 19px;
  color: var(--sidebar-text-bright);
  letter-spacing: 0.005em;
  line-height: 1;
}

.sidebar-role {
  margin-top: 4px;
  font-size: 11.5px;
  color: var(--sidebar-text-dim);
  font-family: var(--font-mono);
  letter-spacing: -0.01em;
}

.sidebar-section-title {
  font-family: var(--font-mono);
  font-size: 10.5px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--sidebar-text-dim);
  padding: 16px 20px 8px;
}

/* Chat log */
.chat-log {
  flex: 1;
  overflow-y: auto;
  padding: 4px 20px 12px;
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.chat-log::-webkit-scrollbar { width: 6px; }
.chat-log::-webkit-scrollbar-thumb {
  background: var(--sidebar-border);
  border-radius: 3px;
}

.chat-empty {
  color: var(--sidebar-text-dim);
  font-size: 13px;
  line-height: 1.55;
  padding: 8px 0 4px;
}

.chat-empty-prompts {
  margin-top: 14px;
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.chat-prompt-suggest {
  text-align: left;
  background: transparent;
  border: 1px solid var(--sidebar-border);
  color: var(--sidebar-text);
  font: inherit;
  font-size: 12.5px;
  padding: 8px 12px;
  border-radius: 6px;
  cursor: pointer;
  line-height: 1.4;
  transition: border-color 120ms, color 120ms, background 120ms;
}
.chat-prompt-suggest:hover {
  border-color: var(--accent);
  color: var(--sidebar-text-bright);
  background: rgba(220, 38, 38, 0.06);
}

.chat-msg { display: flex; flex-direction: column; gap: 4px; }
.chat-msg-role {
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--sidebar-text-dim);
}
.chat-msg-role.user { color: var(--accent); }
.chat-msg-body {
  font-size: 13.5px;
  line-height: 1.55;
  color: var(--sidebar-text);
  white-space: pre-wrap;
  word-wrap: break-word;
}
.chat-msg.user .chat-msg-body {
  color: var(--sidebar-text-bright);
}

.chat-typing {
  display: inline-flex;
  gap: 4px;
  align-items: center;
  height: 18px;
}
.chat-typing span {
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background: var(--sidebar-text-dim);
  animation: typing 1.2s infinite ease-in-out;
}
.chat-typing span:nth-child(2) { animation-delay: 0.15s; }
.chat-typing span:nth-child(3) { animation-delay: 0.3s; }
@keyframes typing {
  0%, 60%, 100% { opacity: 0.3; transform: translateY(0); }
  30% { opacity: 1; transform: translateY(-3px); }
}

/* Chat input */
.chat-input-wrap {
  padding: 12px 16px 16px;
  border-top: 1px solid var(--sidebar-border);
  background: var(--sidebar-bg);
}

.chat-input-shell {
  display: flex;
  align-items: flex-end;
  gap: 8px;
  padding: 10px 10px 10px 12px;
  background: var(--sidebar-bg-2);
  border: 1px solid var(--sidebar-border);
  border-radius: 10px;
  transition: border-color 120ms;
}
.chat-input-shell:focus-within {
  border-color: #3a3735;
}

.chat-input {
  flex: 1;
  background: transparent;
  border: none;
  outline: none;
  color: var(--sidebar-text-bright);
  font: inherit;
  font-size: 13.5px;
  line-height: 1.5;
  resize: none;
  max-height: 120px;
  min-height: 20px;
}
.chat-input::placeholder { color: var(--sidebar-text-dim); }

.chat-send {
  background: var(--accent);
  color: var(--accent-fg);
  border: none;
  width: 28px;
  height: 28px;
  border-radius: 6px;
  display: grid;
  place-items: center;
  cursor: pointer;
  flex-shrink: 0;
  transition: opacity 120ms, transform 80ms;
}
.chat-send:disabled {
  opacity: 0.35;
  cursor: not-allowed;
}
.chat-send:not(:disabled):hover { transform: translateY(-1px); }
.chat-send:active { transform: translateY(0); }

.chat-hint {
  margin-top: 8px;
  font-family: var(--font-mono);
  font-size: 10px;
  color: var(--sidebar-text-dim);
  letter-spacing: 0.04em;
  text-align: center;
}

/* === Main pane =========================================================== */

.main {
  display: flex;
  flex-direction: column;
  background: var(--content-bg);
  overflow: hidden;
}

/* === Tab bar ============================================================= */

.tabbar {
  height: var(--tab-h);
  display: flex;
  align-items: stretch;
  background: var(--content-bg-2);
  border-bottom: 1px solid var(--content-border);
  flex-shrink: 0;
  overflow-x: auto;
  scrollbar-width: none;
}
.tabbar::-webkit-scrollbar { display: none; }

.tab {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 0 14px 0 14px;
  border-right: 1px solid var(--content-border);
  font-size: 12.5px;
  color: var(--content-text-dim);
  cursor: pointer;
  position: relative;
  background: var(--content-bg-2);
  min-width: 0;
  max-width: 260px;
  user-select: none;
  transition: background 80ms, color 80ms;
}
.tab:hover { color: var(--content-text); background: #ebe5d9; }

.tab.active {
  background: var(--content-bg);
  color: var(--content-text);
}
.tab.active::after {
  content: "";
  position: absolute;
  left: 0; right: 0; top: 0;
  height: 2px;
  background: var(--accent);
}

.tab-icon {
  flex-shrink: 0;
  opacity: 0.7;
  display: grid;
  place-items: center;
}
.tab.active .tab-icon { opacity: 1; color: var(--accent); }

.tab-label {
  font-family: var(--font-mono);
  font-size: 12px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  letter-spacing: -0.01em;
}

.tab.home .tab-label {
  font-family: var(--font-sans);
  font-size: 12.5px;
  letter-spacing: 0;
}

.tab-close {
  background: transparent;
  border: none;
  color: var(--content-text-soft);
  width: 18px;
  height: 18px;
  border-radius: 4px;
  display: grid;
  place-items: center;
  cursor: pointer;
  flex-shrink: 0;
  padding: 0;
  margin-left: 2px;
  opacity: 0;
  transition: opacity 80ms, background 80ms, color 80ms;
}
.tab:hover .tab-close,
.tab.active .tab-close { opacity: 1; }
.tab-close:hover {
  background: rgba(28, 25, 23, 0.08);
  color: var(--content-text);
}

/* === Main body: tree + content =========================================== */

.main-body {
  flex: 1;
  display: grid;
  grid-template-columns: var(--tree-w) 1fr;
  overflow: hidden;
  min-height: 0;
}

/* Folder tree */
.tree {
  background: var(--content-bg);
  border-right: 1px solid var(--content-border);
  overflow-y: auto;
  padding: 14px 0;
}
.tree::-webkit-scrollbar { width: 6px; }
.tree::-webkit-scrollbar-thumb { background: var(--content-border); border-radius: 3px; }

.tree-section-title {
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--content-text-soft);
  padding: 4px 18px 10px;
}

.tree-folder { user-select: none; }

.tree-row {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 5px 18px 5px 14px;
  font-size: 13px;
  cursor: pointer;
  color: var(--content-text);
  border-left: 2px solid transparent;
  line-height: 1.4;
}
.tree-row:hover {
  background: var(--content-bg-2);
}
.tree-row.active {
  background: var(--accent-soft);
  border-left-color: var(--accent);
  color: var(--content-text);
}

.tree-chev {
  width: 12px;
  height: 12px;
  flex-shrink: 0;
  opacity: 0.5;
  transition: transform 120ms;
}
.tree-chev.open { transform: rotate(90deg); opacity: 0.8; }

.tree-folder-icon { flex-shrink: 0; color: var(--accent); opacity: 0.85; }
.tree-file-icon { flex-shrink: 0; color: var(--content-text-soft); margin-left: 4px; }
.tree-row.active .tree-file-icon { color: var(--accent); }

.tree-label { flex: 1; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.tree-row.file .tree-label {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: -0.01em;
}

/* Three-dot menu on file rows */
.tree-row.file { position: relative; }

.tree-more {
  background: transparent;
  border: none;
  width: 22px;
  height: 22px;
  border-radius: 4px;
  display: grid;
  place-items: center;
  color: var(--content-text-soft);
  cursor: pointer;
  flex-shrink: 0;
  padding: 0;
  opacity: 0;
  transition: opacity 80ms, background 80ms, color 80ms;
}
.tree-row.file:hover .tree-more,
.tree-more.open { opacity: 1; }
.tree-more:hover, .tree-more.open {
  background: rgba(28, 25, 23, 0.08);
  color: var(--content-text);
}

.tree-menu {
  background: #fff;
  border: 1px solid var(--content-border);
  border-radius: 6px;
  box-shadow:
    0 4px 12px -2px rgba(28, 25, 23, 0.10),
    0 12px 28px -8px rgba(28, 25, 23, 0.16);
  padding: 4px;
  min-width: 160px;
  z-index: 1000;
}
.tree-menu-item {
  display: flex;
  align-items: center;
  gap: 8px;
  width: 100%;
  background: transparent;
  border: none;
  font: inherit;
  font-size: 13px;
  color: var(--content-text);
  padding: 7px 10px;
  border-radius: 4px;
  cursor: pointer;
  text-align: left;
}
.tree-menu-item:hover {
  background: var(--accent-soft);
  color: var(--content-text);
}
.tree-menu-item .ic {
  color: var(--content-text-soft);
  display: grid;
  place-items: center;
}
.tree-menu-item:hover .ic { color: var(--accent); }

.tree-children {
  padding-left: 12px;
  overflow: hidden;
}

/* === Content area (dot grid + card) ====================================== */

.content {
  position: relative;
  overflow-y: auto;
  background-color: var(--content-bg);
  background-image: radial-gradient(circle, #d6cfc0 1px, transparent 1px);
  background-size: 20px 20px;
  background-position: 10px 10px;
}

/* Binary view: no dot grid */
.content.is-binary {
  background-image: none;
  background-color: var(--content-bg);
}

.content::-webkit-scrollbar { width: 10px; }
.content::-webkit-scrollbar-thumb {
  background: var(--content-border);
  border-radius: 5px;
  border: 2px solid var(--content-bg);
}

.content-inner {
  max-width: 680px;
  margin: 0 auto;
  padding: 48px 24px 96px;
}

/* Path breadcrumb above card */
.content-path {
  font-family: var(--font-mono);
  font-size: 11.5px;
  color: var(--content-text-soft);
  letter-spacing: -0.01em;
  margin-bottom: 14px;
  display: flex;
  align-items: center;
  gap: 6px;
}
.content-path .sep { opacity: 0.4; }
.content-path .leaf { color: var(--accent); }

/* Card */
.card {
  background: var(--card-bg);
  border-radius: var(--card-radius);
  box-shadow: var(--card-shadow);
  border: 1px solid rgba(28, 25, 23, 0.04);
  padding: 56px 64px 64px;
  position: relative;
}

.card-meta {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--content-text-soft);
  margin-bottom: 16px;
  display: flex;
  align-items: center;
  gap: 10px;
}
.card-meta-dot {
  width: 6px; height: 6px; border-radius: 50%;
  background: var(--accent);
}

.card-subtitle {
  font-family: var(--font-mono);
  font-size: 11.5px;
  color: var(--content-text-soft);
  margin-top: 6px;
  letter-spacing: -0.01em;
}

/* Markdown body */
.md { color: var(--content-text); }
.md h1 {
  font-family: var(--font-serif);
  font-weight: 400;
  font-size: 42px;
  line-height: 1.1;
  letter-spacing: -0.01em;
  margin: 0 0 8px;
  color: var(--content-text);
}
.md h2 {
  font-family: var(--font-serif);
  font-weight: 400;
  font-size: 26px;
  line-height: 1.2;
  margin: 36px 0 12px;
  letter-spacing: -0.005em;
}
.md h3 {
  font-family: var(--font-sans);
  font-weight: 600;
  font-size: 15px;
  margin: 28px 0 10px;
  letter-spacing: -0.005em;
}
.md p {
  font-size: 15.5px;
  line-height: 1.7;
  margin: 0 0 16px;
  color: #292524;
  text-wrap: pretty;
}
.md ul, .md ol {
  font-size: 15px;
  line-height: 1.65;
  padding-left: 22px;
  margin: 0 0 18px;
  color: #292524;
}
.md li { margin-bottom: 6px; }
.md li::marker { color: var(--accent); }

.md strong { color: var(--content-text); font-weight: 600; }
.md em { font-style: italic; color: #44403c; }

.md code {
  font-family: var(--font-mono);
  font-size: 13px;
  background: var(--content-bg-2);
  padding: 1px 5px;
  border-radius: 3px;
  color: #44403c;
}
.md pre {
  background: #1c1917;
  color: #f5f5f4;
  padding: 16px 18px;
  border-radius: 6px;
  overflow-x: auto;
  font-size: 13px;
  line-height: 1.55;
  margin: 0 0 18px;
}
.md pre code {
  background: transparent;
  padding: 0;
  color: inherit;
}

.md blockquote {
  border-left: 3px solid var(--accent);
  margin: 0 0 18px;
  padding: 4px 0 4px 18px;
  color: var(--content-text-dim);
  font-style: italic;
  font-size: 15px;
  line-height: 1.65;
}

.md a {
  color: var(--accent);
  text-decoration: underline;
  text-decoration-thickness: 1px;
  text-underline-offset: 2px;
}

.md hr {
  border: none;
  border-top: 1px solid var(--content-border);
  margin: 32px 0;
}

/* === Home content ======================================================== */

/* Home card — same white as .md cards, slightly heavier shadow for elevation */
.home-card {
  max-width: 920px;
  margin: 0 auto;
  background: #ffffff;
  border: 1px solid rgba(28, 25, 23, 0.05);
  border-radius: 8px;
  box-shadow:
    0 1px 2px rgba(28, 25, 23, 0.06),
    0 12px 28px -8px rgba(28, 25, 23, 0.18),
    0 32px 56px -16px rgba(28, 25, 23, 0.14);
  padding: 56px 64px 56px;
}

.home-content-inner {
  max-width: 960px;
  margin: 0 auto;
  padding: 56px 24px 96px;
}

.home-hero {
  margin-bottom: 32px;
}
.home-eyebrow {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 18px;
  display: flex;
  align-items: center;
  gap: 10px;
}
.home-eyebrow::before {
  content: "";
  width: 22px; height: 1px;
  background: var(--accent);
}
.home-title {
  font-family: var(--font-serif);
  font-weight: 400;
  font-size: 64px;
  line-height: 1;
  letter-spacing: -0.015em;
  margin: 0 0 14px;
}
.home-sub {
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.6;
  color: var(--content-text-dim);
  max-width: 520px;
  margin: 0 0 32px;
  text-wrap: pretty;
}

.home-meta-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 18px 28px;
  padding: 22px 0;
  border-top: 1px solid var(--content-border);
  border-bottom: 1px solid var(--content-border);
  margin-top: 32px;
  margin-bottom: 0;
}

/* Hero row: text on left, bonsai seal on the right */
.home-hero-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 32px;
}
.home-hero { flex: 1; min-width: 0; margin-bottom: 0; }

/* Bonsai seal — stamp-like mark beside the hero text */
.home-seal {
  flex-shrink: 0;
  display: flex;
  justify-content: center;
  align-items: center;
}
.home-seal-img {
  width: 170px;
  height: auto;
  display: block;
  user-select: none;
  -webkit-user-drag: none;
  opacity: 0.8;
}

@media (max-width: 860px) {
  .home-hero-row { flex-direction: column; align-items: flex-start; gap: 16px; }
  .home-seal-img { width: 130px; }
}
.home-meta-item .k {
  font-family: var(--font-mono);
  font-size: 10.5px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--content-text-soft);
  margin-bottom: 4px;
}
.home-meta-item .v {
  font-size: 14.5px;
  color: var(--content-text);
}
.home-meta-item .v a {
  color: var(--accent);
  text-decoration: none;
}
.home-meta-item .v a:hover { text-decoration: underline; }

.home-section-title {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--content-text-soft);
  margin: 28px 0 14px;
}

.home-folders {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 10px;
}
.home-folder-card {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 14px 16px;
  border: 1px solid var(--content-border);
  border-radius: 6px;
  background: var(--card-bg);
  cursor: pointer;
  transition: border-color 120ms, transform 80ms, box-shadow 120ms;
  text-align: left;
  font: inherit;
  color: inherit;
}
.home-folder-card:hover {
  border-color: var(--accent);
  transform: translateY(-1px);
  box-shadow: 0 6px 16px -8px rgba(28, 25, 23, 0.18);
}
.home-folder-card .ic {
  width: 28px; height: 28px;
  border-radius: 5px;
  background: var(--accent-soft);
  color: var(--accent);
  display: grid;
  place-items: center;
  flex-shrink: 0;
}
.home-folder-card .t {
  font-family: var(--font-serif);
  font-size: 17px;
  line-height: 1.1;
}
.home-folder-card .c {
  font-family: var(--font-mono);
  font-size: 10.5px;
  letter-spacing: 0.06em;
  color: var(--content-text-soft);
  margin-top: 2px;
}

/* === Binary view (PDF, etc — can't preview, download instead) ============= */

.binary-view {
  min-height: 100%;
  display: grid;
  place-items: center;
  padding: 48px 24px;
}

.binary-card {
  width: 100%;
  max-width: 460px;
  background: #ffffff;
  border: 1px solid var(--content-border);
  border-radius: 8px;
  box-shadow:
    0 1px 2px rgba(28, 25, 23, 0.03),
    0 4px 12px -4px rgba(28, 25, 23, 0.08);
  padding: 36px 36px 32px;
  text-align: center;
}

.binary-filename {
  font-family: var(--font-mono);
  font-size: 15px;
  color: var(--content-text);
  letter-spacing: -0.01em;
  margin-bottom: 10px;
  word-break: break-all;
}

.binary-sub {
  font-size: 13.5px;
  color: var(--content-text-soft);
  margin-bottom: 22px;
  line-height: 1.5;
}

.binary-meta {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--content-text-soft);
  margin-bottom: 24px;
}
.binary-meta .dot {
  width: 4px; height: 4px; border-radius: 50%;
  background: var(--content-text-soft);
}

.binary-download {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: var(--accent);
  color: var(--accent-fg);
  border: none;
  font: inherit;
  font-size: 13.5px;
  font-weight: 500;
  padding: 10px 18px;
  border-radius: 6px;
  cursor: pointer;
  text-decoration: none;
  transition: transform 80ms, filter 120ms;
}
.binary-download:hover { filter: brightness(1.05); transform: translateY(-1px); }
.binary-download:active { transform: translateY(0); }

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

@media (max-width: 1100px) {
  :root { --sidebar-w: 280px; --tree-w: 220px; }
  .card, .home-card { padding: 44px 44px 56px; }
}

@media (max-width: 860px) {
  .app {
    grid-template-columns: 1fr;
    grid-template-rows: auto 1fr;
  }
  .sidebar {
    border-right: none;
    border-bottom: 1px solid var(--sidebar-border);
    max-height: 42vh;
  }
  .main-body {
    grid-template-columns: 1fr;
  }
  .tree {
    border-right: none;
    border-bottom: 1px solid var(--content-border);
    max-height: 200px;
  }
  .content-inner, .home-content-inner { padding: 28px 16px 64px; }
  .card, .home-card { padding: 32px 24px 40px; }
  .md h1 { font-size: 32px; }
  .home-title { font-size: 44px; }
  .home-meta-grid, .home-folders { grid-template-columns: 1fr; }
}