/* Kartochka — HTMX front. Design tokens + primitives. */
:root {
  --bg: #fafaf9;
  --surface: #ffffff;
  --text: #1c1917;
  --text-dim: #78716c;
  --border: #e7e5e4;
  --accent: #4f46e5;
  --accent-hover: #4338ca;
  --accent-soft: #eef2ff;
  --danger: #dc2626;
  --ok: #16a34a;
  --radius: 14px;
  --shadow: 0 1px 3px rgba(0, 0, 0, 0.06), 0 4px 16px rgba(0, 0, 0, 0.05);
  --font: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #131110;
    --surface: #1e1b19;
    --text: #f5f5f4;
    --text-dim: #a8a29e;
    --border: #2e2a27;
    --accent: #818cf8;
    --accent-hover: #a5b4fc;
    --accent-soft: #26244a;
    --shadow: 0 1px 3px rgba(0, 0, 0, 0.4);
  }
}

* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: var(--font);
  font-size: 15px;
  line-height: 1.5;
}
img { max-width: 100%; display: block; }
a { color: var(--accent); text-decoration: none; }
h1, h2, h3 { margin: 0 0 8px; line-height: 1.2; }

.container { max-width: 1080px; margin: 0 auto; padding: 0 20px; }

/* Header */
.header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 0;
  gap: 12px;
}
.logo { font-size: 20px; font-weight: 800; color: var(--text); letter-spacing: -0.5px; }
.logo span { color: var(--accent); }
.header-nav { display: flex; align-items: center; gap: 14px; }
.user-chip { display: flex; align-items: center; gap: 8px; color: var(--text-dim); font-size: 13px; }
.user-chip img { width: 26px; height: 26px; border-radius: 999px; }

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  border: 1px solid var(--border);
  background: var(--surface);
  color: var(--text);
  border-radius: 10px;
  padding: 9px 16px;
  font-size: 14px;
  font-weight: 600;
  cursor: pointer;
  transition: background 0.15s, border-color 0.15s, opacity 0.15s;
  text-decoration: none;
}
.btn:hover { border-color: var(--text-dim); }
.btn:disabled { opacity: 0.5; cursor: default; }
.btn-primary { background: var(--accent); border-color: var(--accent); color: #fff; }
.btn-primary:hover { background: var(--accent-hover); border-color: var(--accent-hover); }
.btn-ghost { border-color: transparent; background: transparent; color: var(--text-dim); }
.btn-ghost:hover { color: var(--text); border-color: transparent; }
.btn-danger { color: var(--danger); }
.btn-sm { padding: 6px 12px; font-size: 13px; }
.btn-lg { padding: 12px 22px; font-size: 15px; border-radius: 12px; }

/* Cards / panels */
.panel {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 20px;
}
.muted { color: var(--text-dim); }
.small { font-size: 13px; }

/* Forms */
.input, .textarea, select.input {
  width: 100%;
  border: 1px solid var(--border);
  background: var(--surface);
  color: var(--text);
  border-radius: 10px;
  padding: 10px 12px;
  font-size: 14px;
  font-family: var(--font);
}
.textarea { resize: vertical; min-height: 72px; }
.input:focus, .textarea:focus { outline: 2px solid var(--accent-soft); border-color: var(--accent); }
.field { margin-bottom: 14px; }
.field label { display: block; font-size: 13px; font-weight: 600; margin-bottom: 6px; color: var(--text-dim); }

/* Dropzone */
.dropzone {
  border: 2px dashed var(--border);
  border-radius: var(--radius);
  padding: 36px 20px;
  text-align: center;
  color: var(--text-dim);
  cursor: pointer;
  transition: border-color 0.15s, background 0.15s;
}
.dropzone:hover, .dropzone.drag { border-color: var(--accent); background: var(--accent-soft); }
.dropzone .dz-icon { font-size: 34px; margin-bottom: 8px; }

/* Photo strip */
.photos { display: flex; gap: 10px; flex-wrap: wrap; }
.photo-thumb {
  width: 88px; height: 88px; border-radius: 10px; overflow: hidden;
  border: 1px solid var(--border); position: relative; flex: none;
}
.photo-thumb img { width: 100%; height: 100%; object-fit: cover; }
.photo-add {
  width: 88px; height: 88px; border-radius: 10px; border: 2px dashed var(--border);
  display: flex; align-items: center; justify-content: center;
  color: var(--text-dim); font-size: 26px; cursor: pointer; flex: none; background: none;
}
.photo-add:hover { border-color: var(--accent); color: var(--accent); }

/* Concept picker */
.concepts { display: grid; grid-template-columns: repeat(auto-fill, minmax(150px, 1fr)); gap: 10px; }
.concept {
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 12px;
  cursor: pointer;
  background: var(--surface);
  text-align: left;
  font-family: var(--font);
  transition: border-color 0.15s, background 0.15s;
}
.concept:hover { border-color: var(--text-dim); }
.concept.selected { border-color: var(--accent); background: var(--accent-soft); }
.concept .c-emoji { font-size: 22px; }
.concept .c-name { font-weight: 700; font-size: 14px; margin-top: 4px; color: var(--text); }
.concept .c-desc { font-size: 12px; color: var(--text-dim); margin-top: 2px; }

/* Tabs (photo | card) */
.tabs { display: inline-flex; background: var(--surface); border: 1px solid var(--border); border-radius: 12px; padding: 4px; gap: 4px; }
.tab {
  border: none; background: transparent; color: var(--text-dim);
  padding: 8px 18px; border-radius: 9px; font-size: 14px; font-weight: 600; cursor: pointer; font-family: var(--font);
}
.tab.active { background: var(--accent); color: #fff; }

/* Generations grid */
.gens { display: grid; grid-template-columns: repeat(auto-fill, minmax(240px, 1fr)); gap: 16px; }
.gen-card { overflow: hidden; padding: 0; display: flex; flex-direction: column; }
.gen-img { position: relative; aspect-ratio: 4/5; background: var(--accent-soft); }
.gen-img img { width: 100%; height: 100%; object-fit: cover; cursor: zoom-in; }
.gen-body { padding: 12px 14px; display: flex; flex-direction: column; gap: 8px; }
.gen-actions { display: flex; gap: 8px; flex-wrap: wrap; }
.gen-status { display: flex; align-items: center; gap: 10px; padding: 14px; color: var(--text-dim); font-size: 14px; }
.gen-error { color: var(--danger); font-size: 13px; padding: 12px 14px; }

/* Progress placeholder */
.shimmer {
  width: 100%; height: 100%;
  background: linear-gradient(100deg, transparent 30%, rgba(255,255,255,0.35) 50%, transparent 70%), var(--accent-soft);
  background-size: 200% 100%;
  animation: shimmer 1.4s infinite;
}
@keyframes shimmer { to { background-position: -200% 0; } }
.spinner {
  width: 18px; height: 18px; border-radius: 999px; flex: none;
  border: 2.5px solid var(--border); border-top-color: var(--accent);
  animation: spin 0.8s linear infinite;
}
@keyframes spin { to { transform: rotate(360deg); } }

/* Project list */
.projects { display: grid; grid-template-columns: repeat(auto-fill, minmax(200px, 1fr)); gap: 16px; }
.project-card { padding: 0; overflow: hidden; cursor: pointer; transition: transform 0.12s; }
.project-card:hover { transform: translateY(-2px); }
.project-cover { aspect-ratio: 1; background: var(--accent-soft); }
.project-cover img { width: 100%; height: 100%; object-fit: cover; }
.project-cover .no-cover { display: flex; align-items: center; justify-content: center; height: 100%; font-size: 34px; }
.project-meta { padding: 10px 14px; display: flex; justify-content: space-between; align-items: center; }

/* Lightbox */
.lightbox {
  position: fixed; inset: 0; background: rgba(0, 0, 0, 0.85); z-index: 100;
  display: flex; align-items: center; justify-content: center; padding: 30px; cursor: zoom-out;
}
.lightbox img { max-width: 100%; max-height: 100%; border-radius: 8px; }

/* Toast */
.toasts { position: fixed; bottom: 20px; right: 20px; display: flex; flex-direction: column; gap: 8px; z-index: 200; }
.toast {
  background: var(--text); color: var(--bg);
  border-radius: 10px; padding: 10px 16px; font-size: 14px;
  box-shadow: var(--shadow); animation: toast-in 0.2s ease-out;
}
.toast.error { background: var(--danger); color: #fff; }
@keyframes toast-in { from { opacity: 0; transform: translateY(8px); } }

/* Fullscreen drag overlay */
.drop-overlay {
  position: fixed; inset: 0; z-index: 90; background: rgba(79, 70, 229, 0.12);
  border: 3px dashed var(--accent); border-radius: 20px; margin: 12px;
  display: flex; align-items: center; justify-content: center;
  font-size: 22px; font-weight: 700; color: var(--accent); pointer-events: none;
}

/* Range slider row */
.range-row { display: flex; align-items: center; gap: 12px; }
.range-row input[type="range"] { flex: 1; accent-color: var(--accent); }

/* Misc */
.row { display: flex; align-items: center; gap: 10px; flex-wrap: wrap; }
.spread { display: flex; align-items: center; justify-content: space-between; gap: 10px; }
.stack { display: flex; flex-direction: column; gap: 16px; }
.mt { margin-top: 16px; }
.hidden { display: none !important; }
.center { text-align: center; }
.hero { padding: 48px 20px; text-align: center; }
.hero h1 { font-size: 32px; letter-spacing: -1px; }
.hero p { color: var(--text-dim); max-width: 480px; margin: 8px auto 0; }
.badge {
  display: inline-block; background: var(--accent-soft); color: var(--accent);
  font-size: 12px; font-weight: 700; border-radius: 999px; padding: 3px 10px;
}
htmx-indicator { display: none; }
.htmx-indicator { display: none; }
.htmx-request .htmx-indicator, .htmx-request.htmx-indicator { display: inline-flex; }

/* Selected state via :has (radio inside label) */
.concept:has(input:checked) { border-color: var(--accent); background: var(--accent-soft); }
.title-input {
  border: none; background: transparent; color: var(--text);
  font-size: 22px; font-weight: 800; font-family: var(--font);
  padding: 4px 8px; border-radius: 8px; min-width: 200px; flex: 1;
}
.title-input:hover { background: var(--surface); }
.title-input:focus { outline: 2px solid var(--accent-soft); background: var(--surface); }
details.improve summary { list-style: none; }
details.improve summary::-webkit-details-marker { display: none; }
#gens:has(.gen-item) + .empty-hint { display: none; }