/* Electron — Claude-inspired light theme */
:root {
  --bg: #faf9f5;
  --bg-panel: #f0eee6;
  --bg-hover: #e8e6dc;
  --bg-active: #e0ddd1;
  --card: #ffffff;
  --text: #1f1e1b;
  --text-soft: #57544c;
  --text-dim: #8a867c;
  --accent: #d97757;
  --accent-hover: #c9663f;
  --accent-soft: #f5e9e3;
  --border: #e3e0d5;
  --border-strong: #d4d1c4;
  --radius: 14px;
  --serif: Georgia, "Times New Roman", serif;
  --sans: "Segoe UI", system-ui, -apple-system, sans-serif;
  --shadow: 0 1px 3px rgba(31, 30, 27, 0.06), 0 4px 14px rgba(31, 30, 27, 0.05);
}

* { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
html, body { height: 100%; }
body { font-family: var(--sans); background: var(--bg); color: var(--text); -webkit-font-smoothing: antialiased; }
.hidden { display: none !important; }

/* ---------- animations ---------- */
@keyframes fadeUp {
  from { opacity: 0; transform: translateY(14px); }
  to { opacity: 1; transform: translateY(0); }
}
@keyframes fadeIn {
  from { opacity: 0; }
  to { opacity: 1; }
}
@keyframes popIn {
  from { opacity: 0; transform: scale(0.96) translateY(8px); }
  to { opacity: 1; transform: scale(1) translateY(0); }
}
@keyframes blink {
  0%, 80%, 100% { opacity: 0.25; }
  40% { opacity: 1; }
}
.hero > * { animation: fadeUp 0.6s ease both; }
.hero > *:nth-child(2) { animation-delay: 0.08s; }
.hero > *:nth-child(3) { animation-delay: 0.16s; }
.hero > *:nth-child(4) { animation-delay: 0.22s; }
.hero > *:nth-child(5) { animation-delay: 0.3s; }
.welcome { animation: fadeUp 0.5s ease both; }
.msg { animation: fadeUp 0.3s ease both; }

/* scroll reveal — sections start hidden, flow in when they enter the viewport */
.reveal { opacity: 0; transform: translateY(36px); transition: opacity 0.7s ease, transform 0.7s ease; }
.reveal.in { opacity: 1; transform: translateY(0); }
.reveal .feature, .reveal .doc-card, .reveal .plan, .reveal details {
  opacity: 0; transform: translateY(24px);
  transition: opacity 0.55s ease, transform 0.55s ease;
}
.reveal.in .feature, .reveal.in .doc-card, .reveal.in .plan, .reveal.in details {
  opacity: 1; transform: translateY(0);
}
.reveal.in > * > *:nth-child(1) { transition-delay: 0.05s; }
.reveal.in > * > *:nth-child(2) { transition-delay: 0.13s; }
.reveal.in > * > *:nth-child(3) { transition-delay: 0.21s; }
.reveal.in > * > *:nth-child(4) { transition-delay: 0.29s; }
.reveal.in > * > *:nth-child(5) { transition-delay: 0.37s; }
.reveal.in > * > *:nth-child(6) { transition-delay: 0.45s; }

/* typewriter caret for FAQ answers */
.typewriting::after { content: "▍"; color: var(--accent); animation: blink 1s infinite; }

/* typing indicator dots */
.dots span {
  display: inline-block; width: 7px; height: 7px; border-radius: 50%;
  background: var(--text-dim); margin-right: 4px;
  animation: blink 1.2s infinite;
}
.dots span:nth-child(2) { animation-delay: 0.2s; }
.dots span:nth-child(3) { animation-delay: 0.4s; }

/* ---------- buttons ---------- */
.btn {
  border: none; border-radius: 10px; cursor: pointer;
  font-family: var(--sans); font-size: 0.92rem; font-weight: 500;
  padding: 9px 16px; transition: background 0.15s, border-color 0.15s;
}
.btn.primary { background: var(--accent); color: #fff; }
.btn.primary:hover { background: var(--accent-hover); }
.btn.ghost { background: var(--bg-panel); color: var(--text); border: 1px solid var(--border-strong); }
.btn.ghost:hover { background: var(--bg-hover); border-color: var(--accent); color: var(--accent); }
.btn.big { font-size: 1.05rem; padding: 13px 28px; border-radius: 12px; }
.btn.full { width: 100%; }
.small-btn { padding: 5px 11px; font-size: 0.78rem; }

/* ---------- landing ---------- */
.landing { min-height: 100vh; display: flex; flex-direction: column; }
.landing-nav {
  display: flex; justify-content: space-between; align-items: center;
  padding: 18px 44px; border-bottom: 1px solid var(--border);
  position: sticky; top: 0; background: var(--bg); z-index: 10;
}
.nav-links { display: flex; align-items: center; gap: 22px; }
.nav-links a { color: var(--text-soft); text-decoration: none; font-size: 0.92rem; }
.nav-links a:hover { color: var(--accent); }

.logo {
  font-family: var(--serif); font-size: 1.35rem; font-weight: 700; letter-spacing: -0.3px;
  display: flex; align-items: center; gap: 8px;
}
.logo.center { justify-content: center; }
.logo .spark { color: var(--accent); }
.logo-img { height: 1.35em; width: auto; vertical-align: -0.25em; }
.logo-img.tiny { height: 1em; vertical-align: -0.15em; }
.logo-img.big-mark { height: 1.2em; margin-right: 12px; }
.logo.center { text-align: center; margin-bottom: 6px; }
.logo.small { font-size: 1.05rem; }

.hero {
  display: flex; flex-direction: column; align-items: center;
  text-align: center; padding: 90px 24px 60px; max-width: 900px; margin: 0 auto;
}
.hero h1 {
  font-family: var(--serif); font-weight: 500;
  font-size: clamp(2.6rem, 6vw, 4.2rem); letter-spacing: -1px; line-height: 1.12;
}
.hero h1 em { font-style: italic; color: var(--accent); }
.tagline {
  margin-top: 22px; font-size: 1.15rem; color: var(--text-soft);
  max-width: 540px; line-height: 1.65;
}
.hero-actions { margin-top: 36px; display: flex; gap: 14px; }
.hero-note { margin-top: 16px; font-size: 0.85rem; color: var(--text-dim); }

/* mock chat window on landing */
.mock-window {
  margin: 70px auto 0; width: min(720px, 94vw); background: var(--card);
  border: 1px solid var(--border); border-radius: 18px; box-shadow: var(--shadow);
  text-align: left; overflow: hidden;
}
.mock-titlebar {
  display: flex; gap: 6px; padding: 13px 16px; border-bottom: 1px solid var(--border);
}
.mock-titlebar span { width: 10px; height: 10px; border-radius: 50%; background: var(--border-strong); }
.mock-body { padding: 22px 26px; }
.mock-line { margin-bottom: 18px; line-height: 1.6; font-size: 0.95rem; }
.mock-line .who { font-weight: 600; font-size: 0.8rem; color: var(--text-dim); display: block; margin-bottom: 3px; text-transform: uppercase; letter-spacing: 0.4px; }
.mock-line.ai .who { color: var(--accent); }

/* sections */
.section { max-width: 980px; margin: 0 auto; padding: 70px 24px; width: 100%; }
.section h2 {
  font-family: var(--serif); font-weight: 500; font-size: 2rem;
  text-align: center; letter-spacing: -0.5px;
}
.section .sub { text-align: center; color: var(--text-soft); margin-top: 10px; }

.feature-row {
  display: grid; grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 18px; margin-top: 44px;
}
.feature {
  background: var(--card); border: 1px solid var(--border);
  border-radius: var(--radius); padding: 26px 24px; box-shadow: var(--shadow);
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}
.feature:hover {
  transform: translateY(-3px);
  box-shadow: 0 4px 8px rgba(31, 30, 27, 0.07), 0 12px 28px rgba(31, 30, 27, 0.08);
}
.feature h3 { font-family: var(--serif); font-weight: 600; margin: 10px 0 8px; font-size: 1.1rem; }
.feature:hover h3 { color: var(--accent); }
.feature p { color: var(--text-soft); line-height: 1.6; font-size: 0.92rem; }
.feature-icon { font-size: 1.5rem; }

/* pricing / credits */
.plans { display: grid; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); gap: 18px; margin-top: 44px; }
.plan {
  background: var(--card); border: 1px solid var(--border); border-radius: var(--radius);
  padding: 30px 26px; text-align: center; box-shadow: var(--shadow);
}
.plan.featured { border-color: var(--accent); border-width: 2px; }
.plan h3 { font-family: var(--serif); font-size: 1.15rem; }
.plan .price { font-family: var(--serif); font-size: 2.3rem; margin: 14px 0 4px; }
.plan .per { color: var(--text-dim); font-size: 0.85rem; }
.plan ul { list-style: none; margin: 20px 0; text-align: left; }
.plan li { padding: 6px 0; color: var(--text-soft); font-size: 0.9rem; }
.plan li::before { content: "✓  "; color: var(--accent); font-weight: 700; }

/* ElecCODE download section */
.eleccode-section { max-width: 960px; margin-left: auto; margin-right: auto; }
.eleccode-card {
  display: grid; grid-template-columns: 1fr 1fr; gap: 28px; margin-top: 40px;
  background: var(--card); border: 1px solid var(--border); border-radius: var(--radius);
  padding: 28px; box-shadow: var(--shadow); text-align: left;
}
.eleccode-terminal {
  background: #2b2a27; border-radius: 12px; overflow: hidden;
  box-shadow: 0 8px 24px rgba(31, 30, 27, 0.12);
}
.eleccode-term-bar {
  display: flex; gap: 6px; padding: 10px 12px; background: #1f1e1b;
}
.eleccode-term-bar span {
  width: 10px; height: 10px; border-radius: 50%; background: #4a4844;
}
.eleccode-term-bar span:first-child { background: #c0392b; }
.eleccode-term-bar span:nth-child(2) { background: #d4a017; }
.eleccode-term-bar span:nth-child(3) { background: #3d8b4f; }
.eleccode-term-body {
  margin: 0; padding: 16px 18px; font-family: Consolas, "Courier New", monospace;
  font-size: 0.78rem; line-height: 1.55; color: #ececea; overflow-x: auto;
}
.eleccode-term-body .t-dim { color: #8a8880; }
.eleccode-term-body .t-out { color: #7ec8e3; }
.eleccode-term-body .t-ok { color: #7dcea0; }
.eleccode-perks {
  list-style: none; margin: 0 0 22px; padding: 0;
}
.eleccode-perks li {
  padding: 7px 0; color: var(--text-soft); font-size: 0.92rem;
}
.eleccode-perks li::before { content: "⚡ "; color: var(--accent); }
.eleccode-actions { display: flex; flex-wrap: wrap; gap: 10px; margin-bottom: 18px; }
.eleccode-actions .btn { flex: 1; min-width: 160px; text-align: center; text-decoration: none; }
.eleccode-install-label {
  font-size: 0.78rem; color: var(--text-dim); margin: 10px 0 6px; font-weight: 600;
}
.install-snippet {
  display: flex; align-items: stretch; gap: 0;
  background: var(--bg-panel); border: 1px solid var(--border); border-radius: 10px; overflow: hidden;
}
.install-snippet code {
  flex: 1; padding: 10px 12px; font-family: Consolas, monospace; font-size: 0.75rem;
  word-break: break-all; color: var(--text-soft); line-height: 1.4;
}
.copy-btn {
  border: none; border-left: 1px solid var(--border); background: var(--card);
  padding: 0 14px; cursor: pointer; font-size: 0.8rem; color: var(--text-dim); font-family: inherit;
}
.copy-btn:hover { color: var(--accent); background: var(--bg-panel); }
.eleccode-copied { text-align: left; margin-top: 8px; }

@media (max-width: 780px) {
  .eleccode-card { grid-template-columns: 1fr; }
}

/* eyebrow + accent (Claude-style section labels) */
.eyebrow {
  text-align: center; color: var(--accent); font-weight: 700;
  font-size: 0.78rem; text-transform: uppercase; letter-spacing: 1.6px;
  margin-bottom: 12px;
}
.accent { color: var(--accent); font-style: italic; }

/* benchmark chart */
.chart { max-width: 640px; margin: 46px auto 0; }
.chart-row { display: flex; flex-direction: row-reverse; align-items: center; gap: 16px; margin-bottom: 16px; }
.chart-label { width: 160px; text-align: left; font-size: 0.9rem; color: var(--text-soft); flex-shrink: 0; }
.chart-bar-wrap {
  flex: 1; display: flex; align-items: center; gap: 12px;
  background: var(--bg-panel); border-radius: 8px; padding: 4px; border: 1px solid var(--border);
}
.chart-bar {
  height: 26px; width: 0%; border-radius: 6px;
  transition: width 1.3s cubic-bezier(0.22, 1, 0.36, 1);
}
.chart-bar.other { background: var(--border-strong); }
.chart-bar.ours { background: linear-gradient(90deg, var(--accent), #e8a87c); box-shadow: 0 1px 6px rgba(217, 119, 87, 0.35); }
.chart-num { font-family: var(--serif); font-size: 0.95rem; min-width: 44px; text-align: right; padding-right: 6px; color: var(--text); }
.chart-row[data-score] .chart-num { font-weight: 600; }
.chart-note { text-align: center; color: var(--text-dim); font-size: 0.85rem; margin-top: 26px; max-width: 560px; margin-left: auto; margin-right: auto; }

/* docs */
.docs-grid {
  display: grid; grid-template-columns: repeat(auto-fit, minmax(270px, 1fr));
  gap: 18px; margin-top: 44px;
}
.doc-card {
  background: var(--card); border: 1px solid var(--border);
  border-radius: var(--radius); padding: 24px 22px; box-shadow: var(--shadow);
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}
.doc-card:hover {
  transform: translateY(-3px);
  box-shadow: 0 4px 8px rgba(31, 30, 27, 0.07), 0 12px 28px rgba(31, 30, 27, 0.08);
}
.doc-card h3 {
  font-family: var(--serif); font-weight: 600; font-size: 1rem;
  color: var(--accent); margin-bottom: 10px; letter-spacing: 0.2px;
}
.doc-card p { color: var(--text-soft); line-height: 1.65; font-size: 0.92rem; }

/* faq */
.faq { max-width: 680px; margin: 44px auto 0; }
.faq details {
  background: var(--card); border: 1px solid var(--border); border-radius: 12px;
  padding: 16px 20px; margin-bottom: 10px;
}
.faq summary { cursor: pointer; font-weight: 600; font-size: 0.95rem; }
.faq summary:hover, .faq details[open] summary { color: var(--accent); }
.faq p { margin-top: 10px; color: var(--text-soft); line-height: 1.6; font-size: 0.92rem; }

.landing-footer {
  border-top: 1px solid var(--border); padding: 28px 44px; margin-top: 30px;
  display: flex; justify-content: space-between; align-items: center;
  color: var(--text-dim); font-size: 0.85rem;
}

/* ---------- auth modal ---------- */
.modal {
  position: fixed; inset: 0; background: rgba(31, 30, 27, 0.35);
  display: flex; align-items: center; justify-content: center; z-index: 50;
  animation: fadeIn 0.2s ease both;
}
.modal-card {
  position: relative; background: var(--bg); border: 1px solid var(--border);
  border-radius: 18px; padding: 38px 34px; width: min(400px, 92vw); box-shadow: var(--shadow);
  animation: popIn 0.25s ease both;
}
.modal-close {
  position: absolute; top: 12px; right: 16px; background: none; border: none;
  color: var(--text-dim); font-size: 1.5rem; cursor: pointer;
}
.modal-card h2 {
  text-align: center; margin: 6px 0 22px; font-size: 1.35rem;
  font-family: var(--serif); font-weight: 500;
}
.modal-card input {
  width: 100%; margin-bottom: 12px; padding: 12px 14px;
  background: var(--card); border: 1px solid var(--border-strong); border-radius: 10px;
  color: var(--text); font-size: 1rem; outline: none; font-family: var(--sans);
}
.modal-card input:focus { border-color: var(--accent); }
.auth-error { color: #c0392b; font-size: 0.85rem; min-height: 1.2em; margin-bottom: 8px; }
.auth-switch { margin-top: 16px; text-align: center; color: var(--text-soft); font-size: 0.9rem; }
.auth-switch a { color: var(--accent); text-decoration: none; }

/* ---------- app layout ---------- */
.app { display: flex; height: 100vh; }
.sidebar {
  width: 268px; background: var(--bg-panel); border-right: 1px solid var(--border);
  display: flex; flex-direction: column;
}
.sidebar-top { padding: 16px 14px 10px; display: flex; flex-direction: column; gap: 14px; }
.new-chat-btn {
  display: flex; align-items: center; gap: 8px; width: 100%;
  background: transparent; border: none; cursor: pointer; text-align: left;
  padding: 9px 10px; border-radius: 10px; font-family: var(--sans);
  font-size: 0.92rem; color: var(--accent); font-weight: 600;
}
.new-chat-btn:hover { background: var(--bg-hover); }

.recents-label {
  font-size: 0.72rem; text-transform: uppercase; letter-spacing: 0.6px;
  color: var(--text-dim); padding: 8px 12px 4px;
}
.chat-list { flex: 1; overflow-y: auto; padding: 0 8px; }
.chat-item {
  display: flex; align-items: center; justify-content: space-between;
  padding: 8px 12px; border-radius: 9px; cursor: pointer;
  color: var(--text-soft); font-size: 0.88rem; margin-bottom: 1px;
  white-space: nowrap; overflow: hidden;
}
.chat-item:hover { background: var(--bg-hover); color: var(--text); }
.chat-item.active { background: var(--bg-active); color: var(--text); }
.chat-item .title { overflow: hidden; text-overflow: ellipsis; flex: 1; }
.chat-item .del {
  background: none; border: none; color: var(--text-dim); cursor: pointer;
  font-size: 0.85rem; padding: 2px 6px; visibility: hidden;
}
.chat-item:hover .del { visibility: visible; }
.chat-item .del:hover { color: #c0392b; }

.sidebar-bottom { padding: 12px 14px; border-top: 1px solid var(--border); }
.plan-pill {
  display: block;
  background: var(--card); border: 1px solid var(--border); border-radius: 10px;
  padding: 9px 13px; font-size: 0.85rem; margin-bottom: 10px;
  width: 100%; cursor: pointer; font-family: var(--sans); color: var(--text);
  transition: border-color 0.15s ease, box-shadow 0.15s ease;
}
.plan-pill-body { display: flex; flex-direction: column; gap: 3px; width: 100%; }
.plan-pill-row { display: flex; justify-content: space-between; align-items: center; width: 100%; }
.plan-pill.enterprise {
  border-color: rgba(184, 134, 11, 0.45);
  background: linear-gradient(135deg, rgba(255, 248, 230, 0.95), var(--card));
}
.plan-pill.enterprise #planName { color: #b8860b; font-weight: 700; letter-spacing: 0.02em; }
.plan-sub { font-size: 0.72rem; color: var(--text-dim); line-height: 1.3; text-align: left; }
.plan-pill:hover { border-color: var(--accent); box-shadow: 0 0 0 3px rgba(217, 119, 87, 0.1); }
.topup-success { color: #3d8b4f; font-size: 0.85rem; min-height: 1.2em; margin-bottom: 8px; }
.dev-toggle {
  display: flex; align-items: center; gap: 8px; cursor: pointer;
  font-size: 0.78rem; color: var(--text-dim); margin-bottom: 10px;
  padding: 7px 10px; border: 1px dashed var(--border-strong); border-radius: 8px;
}
.dev-toggle:hover { color: var(--accent); border-color: var(--accent); }
.dev-toggle input { accent-color: var(--accent); }
.lock-toggle {
  display: flex; align-items: flex-start; gap: 10px; cursor: pointer;
  font-size: 0.9rem; color: var(--text-soft); margin: 8px 0;
}
.lock-toggle input { accent-color: var(--accent); margin-top: 3px; flex-shrink: 0; }
.plan-pill .credits { color: var(--accent); font-weight: 600; }
.user-row { display: flex; align-items: center; justify-content: space-between; }
.user-name { font-size: 0.88rem; color: var(--text-soft); font-weight: 600; }

/* ---------- chat ---------- */
.chat-main { flex: 1; display: flex; flex-direction: column; min-width: 0; background: var(--bg); }
.messages { flex: 1; overflow-y: auto; padding: 34px 0 10px; }

.welcome { text-align: center; margin-top: 16vh; padding: 0 24px; }
.welcome h2 {
  font-family: var(--serif); font-weight: 500; font-size: 2.2rem; letter-spacing: -0.5px;
  display: flex; align-items: center; justify-content: center;
}
.welcome h2 .spark { color: var(--accent); margin-right: 10px; }
.welcome p { color: var(--text-soft); margin-top: 12px; }
.chips { display: flex; flex-wrap: wrap; gap: 10px; justify-content: center; margin-top: 28px; }
.chip {
  background: var(--card); border: 1px solid var(--border-strong); border-radius: 999px;
  padding: 8px 16px; font-size: 0.88rem; color: var(--text-soft); cursor: pointer;
  font-family: var(--sans); transition: background 0.15s;
}
.chip:hover { background: var(--bg-panel); color: var(--text); }

.msg { max-width: 740px; margin: 0 auto 6px; padding: 12px 24px; display: flex; gap: 14px; }
.msg.ai { background: transparent; }
.msg .avatar {
  flex-shrink: 0; width: 30px; height: 30px; border-radius: 50%;
  display: flex; align-items: center; justify-content: center; font-size: 0.85rem;
  border: 1px solid var(--border);
}
.msg.user .avatar { background: var(--bg-panel); }
.msg.ai .avatar { background: var(--card); border-color: var(--border-strong); }
.msg.ai .avatar img { width: 20px; height: 20px; }
.msg .bubble { line-height: 1.7; white-space: pre-wrap; word-break: break-word; padding-top: 3px; font-size: 0.97rem; }
.msg .bubble pre {
  background: #2b2a27; color: #ececea; border-radius: 10px;
  font-family: Consolas, monospace; font-size: 0.88em;
  padding: 14px; overflow-x: auto; margin: 10px 0;
}
.msg .bubble code {
  background: var(--bg-panel); border-radius: 5px;
  font-family: Consolas, monospace; font-size: 0.9em; padding: 1px 5px;
}
.msg .bubble pre code { background: none; padding: 0; }
.typing { color: var(--text-dim); font-style: italic; }
.msg-col { min-width: 0; flex: 1; }

/* ---------- thinking block ---------- */
.thinking {
  margin: 2px 0 10px; border: 1px solid var(--border);
  border-radius: 10px; background: var(--bg-panel);
  animation: fadeUp 0.35s ease both; overflow: hidden;
}
.thinking summary {
  cursor: pointer; list-style: none; user-select: none;
  padding: 8px 12px; font-size: 0.8rem; font-weight: 600; color: var(--text-dim);
  display: flex; align-items: center; gap: 8px;
}
.thinking summary::-webkit-details-marker { display: none; }
.thinking summary:hover { color: var(--accent); }
.think-dot {
  width: 8px; height: 8px; border-radius: 50%; background: var(--accent);
  animation: blink 1s ease infinite;
}
.think-dot.done { animation: none; opacity: 0.45; }
.thinking-body {
  padding: 0 12px 10px; font-size: 0.84rem; line-height: 1.6;
  color: var(--text-dim); font-style: italic; white-space: pre-wrap; word-break: break-word;
}

/* ---------- settings ---------- */
.nav-links a.btn.ghost,
.nav-links a.btn { text-decoration: none; display: inline-flex; align-items: center; }
.user-name-btn {
  background: none; border: none; cursor: pointer; padding: 4px 8px;
  margin-left: -8px; border-radius: 8px; font-family: inherit; text-align: left;
}
.user-name-btn:hover { background: var(--bg-panel); color: var(--accent); }
.settings-card { text-align: left; }
.settings-card h2 { text-align: center; }
.setting-row { margin-bottom: 18px; }
.switch-label { display: flex; align-items: center; gap: 10px; cursor: pointer; font-weight: 600; font-size: 0.95rem; }
.switch-label input { accent-color: var(--accent); width: 18px; height: 18px; }
.setting-hint { font-size: 0.8rem; color: var(--text-dim); margin-top: 6px; }
.setting-label { display: block; font-weight: 600; font-size: 0.9rem; margin-bottom: 6px; }
.dev-tag {
  font-size: 0.65rem; font-weight: 700; color: var(--accent);
  border: 1px dashed var(--accent); border-radius: 5px; padding: 1px 6px;
  vertical-align: middle; margin-left: 4px; text-transform: uppercase;
}
.settings-card select, .settings-card textarea {
  width: 100%; padding: 10px 12px; border: 1px solid var(--border-strong);
  border-radius: 10px; background: var(--card); color: var(--text);
  font-family: inherit; font-size: 0.9rem;
}
.settings-card textarea { resize: vertical; line-height: 1.5; }

/* ---------- auth page ---------- */
.auth-page {
  position: fixed; inset: 0; z-index: 60; display: flex; background: var(--bg);
}
.auth-side {
  flex: 1.1; position: relative; overflow: hidden; display: flex; align-items: center;
  background: linear-gradient(150deg, #faf3e3, #f6e3cf 55%, #f3d4b8);
  padding: 48px; border-right: 1px solid var(--border);
}
.auth-side-inner { position: relative; z-index: 2; max-width: 460px; margin: 0 auto; }
.auth-side h1 {
  font-family: var(--serif); font-weight: 500; font-size: 2.6rem; line-height: 1.15;
  letter-spacing: -0.5px; margin: 26px 0 14px;
}
.auth-side h1 em { color: var(--accent); font-style: italic; }
.auth-side p { color: var(--text-soft); line-height: 1.6; }
.auth-perks { margin-top: 34px; display: flex; flex-direction: column; gap: 12px; }
.perk {
  background: rgba(255, 255, 255, 0.6); border: 1px solid var(--border);
  border-radius: 12px; padding: 12px 16px; font-size: 0.92rem; width: fit-content;
}
.auth-orb {
  position: absolute; border-radius: 50%; filter: blur(60px); opacity: 0.5; z-index: 1;
  animation: orbFloat 9s ease-in-out infinite alternate;
}
.auth-orb.one { width: 340px; height: 340px; background: #f0b27d; top: -80px; right: -60px; }
.auth-orb.two { width: 260px; height: 260px; background: #e8875a; bottom: -70px; left: -50px; animation-delay: -4s; }
@keyframes orbFloat { from { transform: translateY(0) scale(1); } to { transform: translateY(40px) scale(1.12); } }

.auth-form-side {
  flex: 1; display: flex; align-items: center; justify-content: center; position: relative; padding: 32px;
}
.auth-back {
  position: absolute; top: 22px; left: 26px; background: none; border: none;
  font-family: inherit; font-size: 0.92rem; color: var(--text-dim); cursor: pointer;
  padding: 8px 12px; border-radius: 10px;
}
.auth-back:hover { color: var(--accent); background: var(--bg-panel); }
.auth-card { width: 100%; max-width: 360px; text-align: center; }
.auth-mark { width: 44px; height: 44px; margin-bottom: 10px; }
.auth-card h2 { font-family: var(--serif); font-weight: 500; font-size: 1.7rem; margin-bottom: 22px; }
.auth-card input {
  width: 100%; padding: 13px 16px; margin-bottom: 12px;
  border: 1px solid var(--border-strong); border-radius: 12px;
  background: var(--card); font-family: inherit; font-size: 0.95rem; color: var(--text);
  transition: border-color 0.2s ease, box-shadow 0.2s ease;
}
.auth-card input:focus { outline: none; border-color: var(--accent); box-shadow: 0 0 0 3px rgba(217, 119, 87, 0.15); }
.auth-card input.hidden { display: none; }

/* fly-in animation: elements sail up with a slight overshoot, staggered */
@keyframes flyIn {
  0% { opacity: 0; transform: translateY(46px) scale(0.97); }
  70% { opacity: 1; transform: translateY(-5px) scale(1.005); }
  100% { opacity: 1; transform: translateY(0) scale(1); }
}
.auth-page .fly { opacity: 0; }
.auth-page.play .fly { animation: flyIn 0.65s cubic-bezier(0.22, 0.9, 0.3, 1) both; }
.auth-page.play .f1 { animation-delay: 0.05s; }
.auth-page.play .f2 { animation-delay: 0.14s; }
.auth-page.play .f3 { animation-delay: 0.23s; }
.auth-page.play .f4 { animation-delay: 0.32s; }
.auth-page.play .f5 { animation-delay: 0.41s; }
.auth-page.play .f6 { animation-delay: 0.5s; }
.auth-page.play .f7 { animation-delay: 0.59s; }

/* ---------- dashboard pages (account, billing) ---------- */
.dash-body { min-height: 100vh; background: var(--bg); }
.dash-nav {
  position: sticky; top: 0; z-index: 40;
  display: flex; align-items: center; justify-content: space-between; gap: 16px;
  padding: 16px 32px; background: rgba(249, 247, 242, 0.95);
  backdrop-filter: blur(10px); border-bottom: 1px solid var(--border);
}
.dash-nav .logo { text-decoration: none; color: inherit; display: flex; align-items: center; gap: 8px; flex-shrink: 0; }
.dash-links { display: flex; align-items: center; gap: 8px; flex-wrap: wrap; justify-content: flex-end; }
.dash-link {
  font-family: inherit; font-size: 0.9rem; color: var(--text-soft);
  text-decoration: none; padding: 8px 14px; border-radius: 10px;
  transition: color 0.2s, background 0.2s; white-space: nowrap;
}
.dash-link:hover { color: var(--accent); background: var(--bg-panel); }
.dash-link.active { color: var(--accent); font-weight: 600; background: var(--accent-soft); }
.dash-main {
  max-width: 980px; margin: 0 auto; padding: 48px 32px 88px; width: 100%;
}
.dash-main .section {
  max-width: none; margin: 0; padding: 0; width: 100%;
}
.dash-main .eyebrow { text-align: left; display: block; }
.dash-main h2 { text-align: left !important; font-size: 2.4rem; margin-top: 8px; }
.dash-main .sub { text-align: left !important; margin-top: 10px; max-width: 620px; }
.account-section,
.billing-section { border-top: none; }

@media (max-width: 640px) {
  .dash-nav {
    padding: 12px 16px;
    flex-wrap: wrap;
    row-gap: 10px;
    align-items: center;
  }
  .dash-nav .logo { flex: 1; min-width: 0; }
  .dash-links {
    flex: 1 1 100%;
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 6px;
    justify-content: stretch;
  }
  .dash-link {
    padding: 8px 6px;
    font-size: 0.78rem;
    text-align: center;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
  }
  .dash-links .small-btn {
    grid-column: 1 / -1;
    width: 100%;
    margin-top: 2px;
  }
  .dash-main { padding: 32px 16px 64px; }
  .dash-main h2 { font-size: 1.9rem; }
}

/* ---------- account section ---------- */
.account-section { border-top: 1px solid var(--border); }
.billing-section { border-top: 1px solid var(--border); }
.billing-stats {
  display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px;
  margin: 28px 0 20px; text-align: left;
}
.stat-card {
  background: var(--card); border: 1px solid var(--border); border-radius: 16px;
  padding: 20px; box-shadow: var(--shadow);
}
.stat-card.highlight { border-color: var(--accent); background: linear-gradient(145deg, var(--card), #faf0e6); }
.stat-label { display: block; font-size: 0.78rem; text-transform: uppercase; letter-spacing: 0.06em; color: var(--text-dim); margin-bottom: 8px; }
.stat-value { display: block; font-family: var(--serif); font-size: 1.8rem; font-weight: 500; color: var(--text); line-height: 1.2; }
.stat-sub { display: block; font-size: 0.85rem; color: var(--text-soft); margin-top: 6px; }
.pricing-compare { display: flex; flex-wrap: wrap; gap: 10px; margin-bottom: 22px; }
.price-pill {
  background: var(--bg-panel); border: 1px solid var(--border); border-radius: 999px;
  padding: 8px 14px; font-size: 0.85rem; color: var(--text-soft);
}
.price-pill.api { border-color: var(--accent); color: var(--accent); }
.price-pill strong { color: var(--text); margin-right: 4px; }
.billing-keys-card { margin-top: 8px; }
.key-usage { margin: 0 0 10px; font-size: 0.82rem; }

.twofa-card { display: flex; flex-direction: column; }
.twofa-actions { margin-top: 14px; display: flex; justify-content: flex-start; }
.twofa-actions .btn { min-width: 140px; }

.account-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; margin-top: 30px; text-align: left; }
.account-card {
  background: var(--card); border: 1px solid var(--border); border-radius: 16px;
  padding: 22px; box-shadow: var(--shadow);
}
.account-card.wide { grid-column: 1 / -1; }
.account-card h3 { font-family: var(--serif); font-weight: 500; font-size: 1.2rem; margin-bottom: 12px; }
.avatar-row { display: flex; align-items: center; gap: 16px; margin: 8px 0; }
.avatar-big {
  width: 72px; height: 72px; border-radius: 50%; object-fit: cover;
  border: 2px solid var(--border-strong); background: var(--bg-panel);
}
.avatar-actions { display: flex; flex-direction: column; gap: 8px; }
.avatar-upload { text-align: center; }
.secret-box {
  display: block; background: var(--bg-panel); border: 1px dashed var(--border-strong);
  border-radius: 8px; padding: 8px 12px; margin: 10px 0 6px;
  font-family: Consolas, monospace; font-size: 0.82rem; word-break: break-all;
}
.inline-form { display: flex; gap: 8px; margin-top: 10px; }
.inline-form input {
  flex: 1; min-width: 0; padding: 9px 12px; border: 1px solid var(--border-strong);
  border-radius: 10px; background: var(--card); font-family: inherit; font-size: 0.9rem;
}
.code-create-form {
  display: flex; flex-wrap: wrap; gap: 8px; margin: 14px 0 8px; align-items: center;
}
.code-create-form input {
  padding: 9px 12px; border: 1px solid var(--border-strong); border-radius: 10px;
  background: var(--card); font-family: inherit; font-size: 0.9rem;
}
.code-create-form input[type="text"] { flex: 1; min-width: 140px; font-family: Consolas, monospace; text-transform: uppercase; }
.code-create-form input[type="number"] { width: 100px; }
.codes-list { display: flex; flex-direction: column; gap: 8px; margin-top: 12px; }
.code-row {
  display: flex; flex-wrap: wrap; align-items: center; gap: 12px 20px;
  padding: 12px 14px; border: 1px solid var(--border); border-radius: 10px; background: var(--bg-panel);
}
.code-row.code-depleted { opacity: 0.55; }
.code-name {
  font-family: Consolas, monospace; font-size: 0.9rem; font-weight: 600;
  color: var(--accent); letter-spacing: 0.03em;
}
.code-meta { font-size: 0.85rem; color: var(--text-soft); }
.key-list { margin: 14px 0; display: flex; flex-direction: column; gap: 12px; }
.key-row { border: 1px solid var(--border); border-radius: 12px; padding: 14px; background: var(--bg-panel); }
.key-head { display: flex; justify-content: space-between; margin-bottom: 6px; }
.key-credits { color: var(--accent); font-weight: 600; font-size: 0.9rem; }
.key-code {
  display: block; font-family: Consolas, monospace; font-size: 0.78rem;
  word-break: break-all; color: var(--text-soft); margin-bottom: 10px;
}
.key-actions { display: flex; flex-wrap: wrap; gap: 8px; align-items: center; }
.key-actions input {
  padding: 7px 10px; border: 1px solid var(--border-strong); border-radius: 8px;
  background: var(--card); font-family: inherit; font-size: 0.85rem;
}
.key-amt { width: 90px; }
.key-codein { width: 150px; }
.api-docs { margin-top: 14px; }
.api-docs summary { cursor: pointer; font-weight: 600; font-size: 0.9rem; color: var(--text-soft); }
.api-docs summary:hover { color: var(--accent); }
.api-docs pre {
  background: #2b2a27; color: #ececea; border-radius: 10px;
  font-family: Consolas, monospace; font-size: 0.8rem;
  padding: 14px; overflow-x: auto; margin: 10px 0;
}

/* ---------- home nav in chat ---------- */
.logo-home { background: none; border: none; cursor: pointer; font-family: inherit; padding: 0; }
.logo-home:hover { opacity: 0.75; }
.home-btn {
  width: 100%; margin-top: 8px; background: none; border: 1px solid var(--border);
  border-radius: 10px; padding: 8px 10px; font-family: inherit; font-size: 0.82rem;
  color: var(--text-dim); cursor: pointer; text-align: left;
}
.home-btn:hover { color: var(--accent); border-color: var(--accent); }
.msg.user .avatar img { width: 100%; height: 100%; border-radius: 50%; object-fit: cover; }

@media (max-width: 860px) {
  .auth-side { display: none; }
  .account-grid { grid-template-columns: 1fr; }
  .billing-stats { grid-template-columns: 1fr; }
}

/* ---------- composer ---------- */
.composer-wrap { padding: 0 24px 20px; }
.composer { max-width: 740px; margin: 0 auto; }
.composer-box {
  background: var(--card); border: 1px solid var(--border-strong);
  border-radius: 14px; box-shadow: var(--shadow); overflow: visible;
  transition: border-color 0.15s ease, box-shadow 0.15s ease;
}
.composer-wrap { overflow: visible; }
.composer-box:focus-within {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(217, 119, 87, 0.12);
}
.attach-row {
  display: flex; flex-wrap: wrap; gap: 6px;
  padding: 10px 12px 0; border-bottom: 1px solid var(--border);
}
.attach-row:not(.hidden) + .composer-row { padding-top: 8px; }
.attach-chip {
  display: inline-flex; align-items: center; gap: 6px;
  background: var(--bg-panel); border: 1px solid var(--border);
  border-radius: 999px; padding: 4px 6px 4px 10px; font-size: 0.78rem; color: var(--text-soft);
}
.attach-chip button {
  background: none; border: none; cursor: pointer; font-size: 1rem; line-height: 1;
  color: var(--text-dim); padding: 0 4px; border-radius: 50%;
}
.attach-chip button:hover { color: var(--accent); background: var(--accent-soft); }
.attach-chip-img { padding-left: 4px; gap: 6px; }
.attach-thumb { width: 28px; height: 28px; border-radius: 6px; object-fit: cover; flex-shrink: 0; }
.attach-name { max-width: 140px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.composer-row {
  display: flex; align-items: center; gap: 8px;
  padding: 8px 10px 8px 8px;
}
.attach-wrap { position: relative; flex-shrink: 0; }
.attach-menu {
  position: absolute; bottom: calc(100% + 10px); left: 0; z-index: 30;
  min-width: 210px; background: var(--card);
  border: 1px solid var(--border-strong); border-radius: 14px;
  box-shadow: 0 8px 28px rgba(31, 30, 27, 0.12);
  padding: 8px; transform-origin: bottom left;
}
.attach-menu.hidden { display: none; }
.attach-menu.open { display: block; animation: attachPop 0.28s cubic-bezier(0.22, 0.9, 0.3, 1) both; }
@keyframes attachPop {
  from { opacity: 0; transform: scale(0.88) translateY(10px); }
  to { opacity: 1; transform: scale(1) translateY(0); }
}
.attach-menu-item {
  display: flex; align-items: center; gap: 10px; width: 100%;
  border: none; background: none; cursor: pointer; font-family: inherit;
  font-size: 0.92rem; color: var(--text); text-align: left;
  padding: 10px 12px; border-radius: 10px; transition: background 0.15s;
}
.attach-menu-item:hover { background: var(--bg-panel); color: var(--accent); }
.attach-menu-icon { font-size: 1.1rem; line-height: 1; }
.attach-menu-hint {
  font-size: 0.75rem; color: var(--text-dim); padding: 2px 12px 6px;
}
.attach-btn.open {
  color: var(--accent); border-color: var(--accent); background: var(--accent-soft);
  transform: rotate(45deg); transition: transform 0.25s ease, background 0.15s, color 0.15s;
}
.attach-btn {
  flex-shrink: 0; width: 36px; height: 36px; border-radius: 10px;
  border: 1px solid var(--border); background: var(--bg-panel);
  color: var(--text-soft); font-size: 1.25rem; line-height: 1; cursor: pointer;
  font-family: inherit; transition: transform 0.25s ease, background 0.15s, color 0.15s, border-color 0.15s;
}
.attach-btn:hover { color: var(--accent); border-color: var(--accent); background: var(--accent-soft); }
.composer-row textarea {
  flex: 1; min-width: 0; background: none; border: none; outline: none; resize: none;
  color: var(--text); font-family: var(--sans); font-size: 0.97rem; line-height: 1.5;
  max-height: 200px; min-height: 24px; padding: 9px 2px; overflow-y: auto;
  vertical-align: middle;
}
.composer-row textarea::placeholder { color: var(--text-dim); opacity: 1; }
.send-btn {
  background: var(--accent); border: none; color: #fff; border-radius: 10px;
  width: 36px; height: 36px; cursor: pointer; font-size: 0.95rem; flex-shrink: 0;
  transition: background 0.15s; display: flex; align-items: center; justify-content: center;
}
.send-btn:hover { background: var(--accent-hover); }
.send-btn:disabled { opacity: 0.35; cursor: default; }
.composer-note { text-align: center; color: var(--text-dim); font-size: 0.75rem; margin-top: 9px; }

/* mobile topbar hidden on desktop */
.mobile-topbar { display: none; }
.sidebar-backdrop { display: none; }

@media (max-width: 720px) {
  /* --- landing --- */
  .landing-nav {
    padding: 12px 16px;
    flex-wrap: wrap;
    row-gap: 10px;
    align-items: center;
  }
  .landing-nav .logo { flex: 1; min-width: 0; }
  .nav-links {
    flex: 1 1 100%;
    flex-wrap: wrap;
    justify-content: center;
    gap: 8px;
  }
  .nav-links > a[href^="#"] { display: none; }
  #navGuest, #navUser {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    justify-content: center;
    width: 100%;
  }
  .nav-links .btn {
    padding: 8px 11px;
    font-size: 0.8rem;
    white-space: nowrap;
  }
  .nav-links a.btn { display: inline-flex; }
  .hero { padding: 50px 18px 40px; }
  .hero-actions { flex-direction: column; width: 100%; gap: 10px; }
  .hero-actions .btn, .hero-actions a { width: 100%; }
  .section { padding: 48px 18px; }
  .landing-footer { padding: 20px 16px; flex-direction: column; gap: 10px; text-align: center; }
  .mock-body { padding: 16px; }

  /* --- benchmark chart --- */
  .chart-row { flex-direction: column; align-items: stretch; gap: 6px; margin-bottom: 20px; }
  .chart-label { width: auto; font-size: 0.85rem; }
  .chart-num { min-width: 40px; font-size: 0.85rem; }

  /* --- chat app --- */
  .mobile-topbar {
    display: flex; align-items: center; justify-content: space-between;
    padding: 10px 14px; border-bottom: 1px solid var(--border); background: var(--bg);
    position: sticky; top: 0; z-index: 5;
  }
  .menu-btn {
    background: var(--bg-panel); border: 1px solid var(--border-strong); border-radius: 8px;
    font-size: 1.1rem; padding: 6px 12px; cursor: pointer; color: var(--text);
  }
  .mobile-credits { font-size: 0.9rem; color: var(--accent); font-weight: 600; }

  .sidebar {
    display: flex; position: fixed; top: 0; left: 0; bottom: 0; z-index: 40;
    width: min(300px, 84vw); transform: translateX(-105%);
    transition: transform 0.28s cubic-bezier(0.22, 1, 0.36, 1);
    box-shadow: 8px 0 30px rgba(31, 30, 27, 0.18);
  }
  .sidebar.open { transform: translateX(0); }
  .sidebar-backdrop {
    display: block; position: fixed; inset: 0; background: rgba(31, 30, 27, 0.35);
    z-index: 30; opacity: 0; pointer-events: none; transition: opacity 0.25s ease;
  }
  .sidebar-backdrop.show { opacity: 1; pointer-events: auto; }

  .messages { padding-top: 16px; }
  .welcome { margin-top: 8vh; }
  .welcome h2 { font-size: 1.6rem; flex-wrap: wrap; }
  .msg { padding: 10px 14px; gap: 10px; }
  .composer-wrap { padding: 0 12px 12px; }
  .chips { gap: 8px; }
  .chip { font-size: 0.82rem; padding: 7px 12px; }

  /* modals */
  .modal-card { padding: 28px 20px; }
}

@media (max-width: 420px) {
  #navUser {
    display: grid;
    grid-template-columns: 1fr 1fr;
    width: 100%;
  }
  #navUser .btn.primary { grid-column: 1 / -1; }
  #navGuest { flex-direction: column; width: 100%; }
  #navGuest .btn { width: 100%; justify-content: center; }
}