* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
html { font-size: 15px; }
body {
  min-height: 100vh;
  font-family: var(--font-sans);
  color: var(--text-primary);
  background: var(--bg-primary);
  line-height: 1.5;
}

a { color: var(--accent); text-decoration: none; }
a:hover { color: var(--accent-hover); }
img, video { max-width: 100%; }
code {
  padding: 0.12rem 0.3rem;
  border-radius: 6px;
  background: var(--panel-soft);
  border: 1px solid var(--border);
}

.container { width: min(var(--container), calc(100% - 32px)); margin: 0 auto; }
.app-shell { min-height: calc(100vh - var(--header-height)); }
.app-shell-workspace {
  display: grid;
  grid-template-columns: var(--sidebar-width) minmax(0, 1fr);
  height: calc(100vh - var(--header-height));
  overflow: hidden;
}
.public-shell { display: block; }
.main-content { width: min(var(--container), calc(100% - 32px)); margin: 0 auto; padding: 24px 0 40px; }
.workspace-main {
  width: 100%;
  max-width: none;
  min-height: calc(100vh - var(--header-height));
  padding: 20px 28px;
  overflow-y: auto;
}
.public-main { width: min(var(--container), calc(100% - 32px)); }
.public-body { background: var(--bg-primary); }
.app-workspace-body { background: var(--bg-primary); }

.site-header {
  position: sticky;
  top: 0;
  z-index: 60;
  min-height: var(--header-height);
  border-bottom: 1px solid var(--border);
  background: var(--panel);
}
.header-inner {
  min-height: var(--header-height);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}
.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  color: var(--text-primary);
  font-weight: 700;
  letter-spacing: -0.02em;
}
.brand:hover { text-decoration: none; color: var(--text-primary); }
.brand-mark {
  width: 30px;
  height: 30px;
  display: grid;
  place-items: center;
  border-radius: 8px;
  color: #fff;
  background: var(--accent);
  font-size: 0.78rem;
  font-weight: 700;
}
.brand-text { display: flex; flex-direction: column; line-height: 1.08; }
.brand-text small { color: var(--text-muted); font-size: 0.72rem; font-weight: 500; letter-spacing: 0; }
.workspace-title {
  display: flex;
  align-items: center;
  gap: 10px;
  color: var(--text-secondary);
  font-size: 0.92rem;
  font-weight: 600;
}
.compact-demo-badge {
  display: inline-flex;
  align-items: center;
  width: fit-content;
  height: 24px;
  padding: 0 8px;
  border-radius: 999px;
  border: 1px solid var(--border);
  background: var(--panel-soft);
  color: var(--text-muted);
  font-size: 0.76rem;
  font-weight: 600;
}
.nav-desktop { display: flex; align-items: center; gap: 6px; }
.nav-desktop a {
  color: var(--text-muted);
  padding: 6px 10px;
  border-radius: 8px;
  font-size: 0.9rem;
}
.nav-desktop a:hover { color: var(--text-primary); background: var(--panel-soft); text-decoration: none; }
.header-actions { display: flex; align-items: center; gap: 8px; }
.theme-select, .token-badge {
  height: 34px;
  border: 1px solid var(--border);
  background: var(--panel);
  color: var(--text-secondary);
  border-radius: 8px;
  padding: 0 9px;
  font-size: 0.86rem;
}
.token-badge { display: inline-flex; align-items: center; font-weight: 600; }

.sidebar {
  position: sticky;
  top: var(--header-height);
  align-self: start;
  width: var(--sidebar-width);
  min-height: calc(100vh - var(--header-height));
  padding: 14px;
  border-right: 1px solid var(--border);
  background: var(--sidebar-bg);
}
.workspace-sidebar { display: flex; flex-direction: column; gap: 14px; }
.sidebar-section { display: grid; }
.sidebar-nav { display: flex; flex-direction: column; gap: 3px; }
.sidebar-label {
  margin: 8px 8px 4px;
  color: var(--text-muted);
  font-size: 0.72rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.06em;
}
.sidebar-link {
  display: flex;
  align-items: center;
  gap: 9px;
  color: var(--text-secondary);
  font-size: 0.92rem;
  font-weight: 500;
  padding: 8px 10px;
  border-radius: 8px;
}
.sidebar-link:hover {
  color: var(--accent);
  background: var(--accent-soft);
  text-decoration: none;
}
.sidebar-link span { width: 18px; text-align: center; color: var(--text-muted); }
.sidebar-admin-nav { margin-top: auto; }
.sidebar-profile {
  margin-top: auto;
  padding: 12px;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--panel-soft);
}
.sidebar-balance { display: flex; justify-content: space-between; gap: 12px; margin-bottom: 8px; }
.sidebar-balance strong { color: var(--text-primary); }
.sidebar-user { display: grid; gap: 1px; font-size: 0.88rem; }

h1, h2, h3 { color: var(--text-primary); line-height: 1.2; letter-spacing: -0.02em; }
h1 { font-size: clamp(1.85rem, 4vw, 2.15rem); margin: 0; font-weight: 650; }
h2 { font-size: clamp(1.35rem, 2.5vw, 1.6rem); margin: 0 0 12px; font-weight: 620; }
h3 { font-size: 1.1rem; margin: 0 0 8px; font-weight: 650; }
p { margin-top: 0; }
.muted { color: var(--text-muted); }
.center { text-align: center; }
.lead { color: var(--text-secondary); max-width: 58ch; font-size: 1.02rem; }
.section { margin: 32px 0; }
.section-tight { margin: 24px 0; }
.workspace-center { width: min(var(--workspace-container), 100%); margin: 0 auto; }
.workspace-heading {
  display: grid;
  gap: 8px;
  margin: 0 0 20px;
}
.workspace-heading h1 { font-size: clamp(1.75rem, 3vw, 2rem); }
.workspace-heading .muted { max-width: 680px; }
.page-header {
  margin-bottom: 20px;
  padding: 18px;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--panel);
}
.page-header h1 { font-size: clamp(1.8rem, 3vw, 2.15rem); margin-bottom: 4px; }
.section-head { display: flex; justify-content: space-between; align-items: center; gap: 16px; margin-bottom: 14px; }

.grid-2 { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 16px; }
.grid-3 { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 16px; }
.grid-4 { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 16px; }

.card {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 16px;
  box-shadow: var(--shadow-sm);
}
.card:hover { border-color: var(--border); }
.badge, .status-badge {
  display: inline-flex;
  align-items: center;
  height: 22px;
  border-radius: 999px;
  padding: 0 7px;
  font-size: 0.74rem;
  font-weight: 600;
  color: var(--accent);
  background: var(--accent-soft);
  border: 1px solid color-mix(in srgb, var(--accent) 28%, transparent);
}
.badge-ok { color: var(--success); background: color-mix(in srgb, var(--success) 12%, transparent); border-color: color-mix(in srgb, var(--success) 28%, transparent); }
.price { font-size: 1.65rem; line-height: 1.1; color: var(--text-primary); font-weight: 700; letter-spacing: -0.03em; }

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  min-height: 36px;
  border-radius: 8px;
  padding: 0 12px;
  border: 1px solid transparent;
  cursor: pointer;
  font-size: 0.92rem;
  font-weight: 600;
  color: var(--text-primary);
  background: transparent;
}
.btn:hover { text-decoration: none; }
.btn-primary { color: #fff; background: var(--accent); border-color: var(--accent); }
.btn-primary:hover { color: #fff; background: var(--accent-hover); }
.btn-secondary, .btn-ghost { color: var(--text-secondary); background: var(--panel); border-color: var(--border); }
.btn-secondary:hover, .btn-ghost:hover { color: var(--text-primary); background: var(--panel-soft); }
.btn-danger { color: #fff; background: var(--danger); border-color: var(--danger); }
.btn-lg { min-height: 40px; padding: 0 14px; font-size: 0.95rem; }
.btn-sm { min-height: 30px; padding: 0 9px; font-size: 0.82rem; }
.btn-block { width: 100%; }
.inline-form { display: inline; }

.form label { display: block; margin-bottom: 12px; font-weight: 600; color: var(--text-secondary); font-size: 0.9rem; }
.form input, .form textarea, .form select,
input[type="search"], input[type="number"], textarea {
  width: 100%;
  margin-top: 5px;
  padding: 10px 11px;
  border-radius: 10px;
  border: 1px solid var(--border);
  background: var(--panel);
  color: var(--text-primary);
  outline: none;
  font: inherit;
  font-size: 0.95rem;
}
.form input:focus, .form textarea:focus, .form select:focus,
input[type="search"]:focus, input[type="number"]:focus, textarea:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-soft);
}
.alert { padding: 10px 12px; border-radius: 10px; margin-bottom: 14px; border: 1px solid var(--border); }
.alert-error { background: color-mix(in srgb, var(--danger) 10%, transparent); color: var(--danger); }

.product-landing { display: grid; gap: 28px; padding: 8px 0 48px; }
.product-landing-hero {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 24px;
  align-items: stretch;
}
.product-landing-copy { display: grid; gap: 10px; align-content: center; }
.product-landing-copy h1 { font-size: clamp(1.85rem, 4vw, 2.35rem); margin: 0; letter-spacing: -0.03em; }
.product-landing-copy .lead { font-size: 1.05rem; color: var(--text-secondary); margin: 0; }
.product-preview-card { display: grid; gap: 12px; align-content: start; }
.product-preview-list { list-style: none; margin: 0; padding: 0; display: grid; gap: 10px; }
.product-preview-list li { display: flex; gap: 10px; align-items: flex-start; padding: 10px; border-radius: 10px; background: var(--panel-soft); border: 1px solid var(--border); }
.preview-icon { width: 32px; height: 32px; display: grid; place-items: center; border-radius: 8px; background: var(--accent-soft); font-size: 0.95rem; }
.product-features-grid { display: grid; grid-template-columns: repeat(5, minmax(0, 1fr)); gap: 12px; }
.product-feature { display: grid; gap: 8px; min-height: 150px; }
.product-steps-list { margin: 0; padding-left: 1.2rem; display: grid; gap: 8px; color: var(--text-secondary); }
.product-use-cases { display: flex; flex-wrap: wrap; gap: 8px; }
.use-case-pill { padding: 8px 12px; border-radius: 999px; border: 1px solid var(--border); background: var(--panel-soft); color: var(--text-secondary); font-size: 0.88rem; }
.product-section { display: grid; gap: 14px; }
.ai-start-page {
  min-height: calc(100vh - var(--header-height));
  display: grid;
  align-items: center;
  padding: 36px 0 80px;
}
.ai-start-shell {
  width: min(760px, 100%);
  margin: 0 auto;
  display: grid;
  justify-items: center;
  gap: 16px;
  text-align: center;
}
.ai-start-logo { display: inline-flex; align-items: center; gap: 8px; color: var(--text-secondary); font-weight: 650; }
.ai-start-copy { display: grid; gap: 8px; justify-items: center; }
.ai-start-copy h1 { font-size: clamp(2rem, 5vw, 2.15rem); }
.ai-start-links { display: flex; flex-wrap: wrap; justify-content: center; gap: 8px; }

.ai-composer {
  width: 100%;
  max-width: var(--composer-container);
  border: 1px solid var(--border);
  border-radius: 18px;
  background: var(--panel);
  box-shadow: 0 8px 24px rgba(17, 24, 39, 0.08);
  padding: 10px;
}
.ai-composer:focus-within { border-color: var(--accent); box-shadow: 0 0 0 3px var(--accent-soft); }
.ai-composer textarea {
  min-height: 62px;
  max-height: 132px;
  border: 0;
  background: transparent;
  margin: 0;
  resize: none;
  box-shadow: none !important;
  padding: 8px;
  font-size: 0.98rem;
}
.ai-composer-footer { display: flex; justify-content: space-between; align-items: center; gap: 8px; flex-wrap: wrap; padding-top: 6px; border-top: 1px solid var(--border); }
.ai-mode-chips, .ai-composer-actions { display: flex; align-items: center; gap: 6px; flex-wrap: wrap; }
.mode-chip {
  border: 1px solid var(--border);
  color: var(--text-muted);
  background: transparent;
  border-radius: 8px;
  padding: 5px 9px;
  font-weight: 600;
  font-size: 0.86rem;
  cursor: pointer;
}
.mode-chip.active { color: var(--accent); border-color: var(--border-strong); background: var(--accent-soft); }
.prompt-toggle { display: inline-flex; gap: 5px; align-items: center; color: var(--text-muted); font-size: 0.82rem; }
.composer-settings { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 10px; padding: 8px 0; }
.settings-label { display: block; color: var(--text-muted); font-size: 0.78rem; font-weight: 600; margin-bottom: 4px; }

.quick-prompt-grid { width: 100%; display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 10px; }
.quick-prompt-grid.compact { margin-top: 14px; }
.quick-prompt-card {
  text-align: left;
  padding: 11px 12px;
  border: 1px solid var(--border);
  border-radius: 10px;
  background: var(--panel);
  color: var(--text-secondary);
  font-size: 0.92rem;
  cursor: pointer;
}
.quick-prompt-card:hover { color: var(--text-primary); background: var(--panel-soft); }
.ai-capability-row { width: 100%; display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 10px; }
.mini-capability { padding: 12px; border-radius: 10px; border: 1px solid var(--border); background: var(--panel); text-align: left; }
.mini-capability strong { display: block; color: var(--text-primary); font-size: 0.92rem; }
.mini-capability span { color: var(--text-muted); font-size: 0.84rem; }

.pricing-grid { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 16px; }
.pricing-card { display: flex; flex-direction: column; gap: 12px; min-height: 100%; }
.pricing-card.recommended { border-color: var(--accent); }
.package-card { display: flex; flex-direction: column; gap: 10px; min-height: 170px; justify-content: space-between; }
.feature-list { margin: 0; padding: 0; list-style: none; display: grid; gap: 8px; color: var(--text-secondary); font-size: 0.9rem; }
.feature-list li::before { content: "✓"; color: var(--accent); font-weight: 700; margin-right: 7px; }

.site-footer { margin-top: 48px; border-top: 1px solid var(--border); background: var(--panel); }
.footer-grid { display: grid; grid-template-columns: 1.3fr repeat(3, 1fr); gap: 24px; padding: 28px 0; }
.footer-grid h4 { margin: 0 0 8px; color: var(--text-primary); font-size: 0.95rem; }
.footer-grid a { display: block; color: var(--text-muted); margin: 5px 0; font-size: 0.9rem; }
.footer-bottom { display: flex; justify-content: space-between; gap: 14px; padding: 12px 0; border-top: 1px solid var(--border); color: var(--text-muted); font-size: 0.86rem; }

.mobile-nav {
  display: none;
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  z-index: 55;
  background: var(--panel);
  border-top: 1px solid var(--border);
  justify-content: space-around;
  padding: 5px 4px calc(5px + env(safe-area-inset-bottom));
}
.mobile-nav a { color: var(--text-muted); font-size: 0.68rem; display: flex; flex-direction: column; align-items: center; gap: 1px; text-decoration: none; padding: 3px; min-width: 54px; }
.mobile-nav a span { font-size: 1rem; }

.balance-card { text-align: left; margin-bottom: 16px; }
.balance-card .value, .stat-card .value { font-size: 1.75rem; font-weight: 700; color: var(--text-primary); }
.highlight-balance { border-color: var(--border-strong); }
.plan-name { font-size: 1.2rem !important; }
.gallery-toolbar { display: flex; flex-wrap: wrap; gap: 12px; margin-bottom: 16px; align-items: center; justify-content: space-between; }
.gallery-search { max-width: 340px; }
.gallery-empty { grid-column: 1 / -1; }
.gallery-sample-row { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 10px; margin-top: 16px; }
.gallery-sample-card { min-height: 88px; border-radius: 10px; border: 1px dashed var(--border); background: linear-gradient(135deg, var(--panel-soft), var(--panel)); display: grid; place-items: center; color: var(--text-muted); font-size: 0.82rem; font-weight: 600; }
.workspace-progress-list { list-style: none; margin: 0; padding: 0; display: grid; gap: 8px; }
.workspace-progress-item { display: grid; grid-template-columns: auto 1fr auto; gap: 10px; align-items: center; padding: 10px; border-radius: 10px; border: 1px solid var(--border); }
.workspace-progress-item.is-done { border-color: color-mix(in srgb, var(--accent) 35%, var(--border)); }
.workspace-progress-dot { width: 10px; height: 10px; border-radius: 50%; background: var(--border); }
.workspace-progress-item.is-done .workspace-progress-dot { background: var(--accent); }
.demo-tour-steps { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 14px; }
.tour-step { display: flex; gap: 12px; align-items: flex-start; }
.tour-num { width: 30px; height: 30px; border-radius: 50%; background: var(--accent-soft); color: var(--accent); display: grid; place-items: center; font-weight: 700; flex-shrink: 0; }
.gallery-card-head { display: flex; gap: 6px; margin: 8px 0; }
.fake-image, .fake-video-player {
  min-height: 260px;
  border-radius: 10px;
  border: 1px dashed var(--border);
  background: var(--panel-soft);
}
.fake-video-player { position: relative; display: grid; place-items: center; overflow: hidden; }
.fake-video-player img { width: 100%; height: 100%; object-fit: cover; opacity: 0.72; }
.play-badge { position: absolute; color: var(--text-muted); font-size: 2rem; }

@media (max-width: 1120px) {
  .pricing-grid, .grid-4 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}
@media (max-width: 900px) {
  .product-landing-hero, .product-features-grid { grid-template-columns: 1fr; }
  .app-shell-workspace { grid-template-columns: 1fr; }
  .workspace-main, .main-content { width: min(100% - 24px, var(--container)); padding: 18px 0 72px; margin: 0 auto; }
  .sidebar { display: none; }
  .nav-desktop { display: none; }
  .mobile-nav { display: flex; }
  body { padding-bottom: 62px; }
  .grid-2, .grid-3, .grid-4, .pricing-grid, .demo-tour-steps { grid-template-columns: 1fr; }
  .quick-prompt-grid, .ai-capability-row, .composer-settings { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; }
  .footer-bottom { flex-direction: column; }
}
@media (max-width: 520px) {
  html { font-size: 14px; }
  .container { width: min(100% - 24px, var(--container)); }
  .brand-text { display: none; }
  .workspace-title { display: none; }
  .theme-select { max-width: 88px; }
  .token-badge { display: none; }
  .ai-start-page { padding-top: 36px; }
  .ai-composer-footer { align-items: stretch; }
  .ai-composer-actions { width: 100%; justify-content: space-between; }
}