/* ─────────────────────────────────────────────────────────────────────────────
   TrueFrame UI — Design System v2
   Philosophy: depth through shadow, not borders. Minimal rectangles, no pills.
   ───────────────────────────────────────────────────────────────────────────── */

/* ── Design Tokens ─────────────────────────────────────────────────────────── */
:root {
  /* Surfaces — pulled apart so chrome has real presence */
  --bg:          #0A0A0A;
  --surface:     #161616;
  --surface2:    #1E1E1E;
  --surface3:    #272727;
  --surface4:    #303030;

  /* Borders — visible but soft */
  --border:      rgba(255, 255, 255, 0.09);
  --border2:     rgba(255, 255, 255, 0.14);
  --border-hi:   rgba(255, 255, 255, 0.20);

  /* Accent */
  --blue:        #00AAFF;
  --blue-dim:    rgba(0, 170, 255, 0.10);
  --blue-dim2:   rgba(0, 170, 255, 0.16);
  --blue-glow:   rgba(0, 170, 255, 0.30);
  --blue-border: rgba(0, 170, 255, 0.35);
  --coral:       #FF3D1F;
  --green:       #00D97E;

  /* Text */
  --text:        #EDEBE6;
  --text-2:      #8A857E;
  --text-3:      #48443F;

  /* Fonts */
  --font:        'Space Grotesk', system-ui, sans-serif;
  --mono:        'Space Mono', monospace;

  /* Radius — minimal rectangles only, no pills */
  --r-xs:        4px;
  --r-sm:        6px;
  --r-md:        8px;
  --r-lg:        12px;
  --r-xl:        16px;

  /* Shadows — depth language */
  --shadow-xs:   0 1px 2px rgba(0,0,0,0.5);
  --shadow-sm:   0 2px 6px rgba(0,0,0,0.5), 0 0 0 1px rgba(255,255,255,0.04);
  --shadow-md:   0 4px 16px rgba(0,0,0,0.6), 0 0 0 1px rgba(255,255,255,0.05);
  --shadow-lg:   0 8px 32px rgba(0,0,0,0.7), 0 0 0 1px rgba(255,255,255,0.06);
  --shadow-glow: 0 0 24px var(--blue-glow), 0 4px 12px rgba(0,0,0,0.5);
  --inset-top:   inset 0 1px 0 rgba(255,255,255,0.09);

  /* Layout */
  --nav-h:       50px;
  --bar-h:       96px;
  --sidebar-w:   224px;
  --gap:         3px;
  --row-h:       220px;
  --trans:       0.15s ease;
  --trans-slow:  0.25s ease;
}

/* ── Reset ─────────────────────────────────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html, body {
  height: 100%;
  background: var(--bg);
  color: var(--text);
  font-family: var(--font);
  font-size: 14px;
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

button { font-family: var(--font); cursor: pointer; border: none; background: none; }
input, textarea, select { font-family: var(--font); }
img { display: block; }
a { color: inherit; text-decoration: none; }

::-webkit-scrollbar { width: 4px; height: 4px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: rgba(255,255,255,0.1); border-radius: 2px; }
::-webkit-scrollbar-thumb:hover { background: rgba(255,255,255,0.18); }

/* ─────────────────────────────────────────────────────────────────────────────
   AUTH SCREEN
   ───────────────────────────────────────────────────────────────────────────── */
#auth-screen {
  position: fixed;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--bg);
  z-index: 1000;
  /* Radial atmosphere behind the card */
  background-image: radial-gradient(
    ellipse 600px 400px at 50% 60%,
    rgba(0, 170, 255, 0.04) 0%,
    transparent 70%
  );
}

.auth-card {
  width: 400px;
  background: linear-gradient(180deg, #131313 0%, #0E0E0E 100%);
  border-radius: var(--r-xl);
  box-shadow:
    var(--shadow-lg),
    0 0 60px rgba(0, 170, 255, 0.06),
    var(--inset-top);
  overflow: hidden;
}

.auth-logo {
  padding: 36px 32px 22px;
  text-align: center;
}

.auth-logo h1 {
  font-family: var(--mono);
  font-size: 24px;
  font-weight: 700;
  letter-spacing: -0.02em;
  color: var(--text);
}

.auth-logo h1 span { color: var(--blue); }

.auth-logo p {
  color: var(--text-3);
  font-size: 12px;
  font-family: var(--mono);
  margin-top: 6px;
  letter-spacing: 0.04em;
}

/* Tabs */
.auth-tabs {
  display: flex;
  margin: 0 32px;
  background: var(--bg);
  border-radius: var(--r-sm);
  padding: 3px;
  gap: 2px;
}

.auth-tab {
  flex: 1;
  padding: 8px 0;
  font-size: 12.5px;
  font-weight: 600;
  color: var(--text-3);
  border-radius: 4px;
  transition: color var(--trans), background var(--trans);
  text-align: center;
  letter-spacing: 0.02em;
}

.auth-tab.active {
  color: var(--text);
  background: var(--surface3);
  box-shadow: var(--shadow-xs);
}

.auth-body { padding: 24px 32px 32px; }

.auth-panel { display: none; flex-direction: column; gap: 12px; }
.auth-panel.active { display: flex; }

.auth-field { display: flex; flex-direction: column; gap: 5px; }

.auth-field label {
  font-size: 11px;
  font-weight: 600;
  color: var(--text-2);
  letter-spacing: 0.05em;
}

.auth-field input {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--r-md);
  padding: 11px 14px;
  color: var(--text);
  font-size: 14px;
  transition: border-color var(--trans), box-shadow var(--trans);
  outline: none;
  width: 100%;
  box-shadow: var(--shadow-xs);
}

.auth-field input:focus {
  border-color: var(--blue-border);
  box-shadow: 0 0 0 3px var(--blue-dim);
}

.auth-field input::placeholder { color: var(--text-3); }

.auth-field .hint {
  font-size: 11px;
  color: var(--text-3);
  font-family: var(--mono);
}

.auth-btn {
  width: 100%;
  background: var(--blue);
  color: #000;
  border-radius: var(--r-md);
  padding: 12px;
  font-size: 14px;
  font-weight: 700;
  letter-spacing: 0.01em;
  transition: opacity var(--trans), transform var(--trans), box-shadow var(--trans);
  margin-top: 4px;
  box-shadow: 0 0 20px rgba(0,170,255,0.2), 0 2px 8px rgba(0,0,0,0.4);
}

.auth-btn:hover:not(:disabled) {
  opacity: 0.92;
  transform: translateY(-1px);
  box-shadow: 0 0 28px rgba(0,170,255,0.3), 0 4px 12px rgba(0,0,0,0.4);
}

.auth-btn:disabled { opacity: 0.35; cursor: not-allowed; }

.auth-error {
  font-size: 12px;
  font-family: var(--mono);
  color: var(--coral);
  text-align: center;
  min-height: 16px;
}

/* SSO Buttons */
.auth-sso {
  display: flex;
  flex-direction: column;
  gap: 8px;
  margin-bottom: 4px;
}

.sso-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  width: 100%;
  padding: 11px 16px;
  border-radius: var(--r-md);
  font-size: 13.5px;
  font-weight: 600;
  color: var(--text-2);
  background: var(--surface3);
  border: 1px solid var(--border);
  box-shadow: var(--shadow-xs), var(--inset-top);
  transition: color var(--trans), background var(--trans), border-color var(--trans), transform var(--trans);
}

.sso-btn svg { width: 17px; height: 17px; flex-shrink: 0; }

.sso-btn:hover:not(:disabled) {
  color: var(--text);
  background: var(--surface4);
  border-color: var(--border2);
  transform: translateY(-1px);
}

.sso-btn:disabled { opacity: 0.35; cursor: not-allowed; }

/* Divider */
.auth-divider {
  display: flex;
  align-items: center;
  gap: 12px;
  margin: 4px 0;
  color: var(--text-3);
  font-size: 11px;
  font-family: var(--mono);
  letter-spacing: 0.06em;
}

.auth-divider::before,
.auth-divider::after {
  content: '';
  flex: 1;
  height: 1px;
  background: var(--border);
}

/* ─────────────────────────────────────────────────────────────────────────────
   APP SHELL
   ───────────────────────────────────────────────────────────────────────────── */
#app {
  display: none;
  height: 100vh;
  flex-direction: column;
}

#app.visible { display: flex; }

/* ── Top Nav ───────────────────────────────────────────────────────────────── */
nav {
  height: var(--nav-h);
  background: var(--surface);
  border-bottom: 1px solid var(--border);
  box-shadow: 0 2px 12px rgba(0,0,0,0.4);
  display: flex;
  align-items: center;
  padding: 0 16px;
  gap: 0;
  flex-shrink: 0;
  z-index: 10;
}

.nav-logo {
  font-family: var(--mono);
  font-size: 15px;
  font-weight: 700;
  letter-spacing: -0.03em;
  margin-right: 6px;
  flex-shrink: 0;
  color: var(--text);
}

.nav-logo span { color: var(--blue); }

.nav-divider {
  width: 1px;
  height: 18px;
  background: var(--border);
  margin: 0 14px;
  flex-shrink: 0;
}

.nav-tabs {
  display: flex;
  gap: 1px;
  flex: 1;
}

.nav-tab {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 5px 12px;
  border-radius: var(--r-sm);
  font-size: 13px;
  font-weight: 500;
  color: var(--text-3);
  transition: background var(--trans), color var(--trans);
}

.nav-tab:hover { background: var(--surface2); color: var(--text-2); }
.nav-tab.active {
  background: var(--surface3);
  color: var(--text);
  box-shadow: var(--shadow-xs), var(--inset-top);
}

.nav-tab svg { width: 14px; height: 14px; flex-shrink: 0; }

.nav-search {
  flex: 1;
  max-width: 340px;
  margin: 0 12px;
  position: relative;
}

.nav-search input {
  width: 100%;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--r-sm);
  padding: 6px 12px 6px 32px;
  color: var(--text);
  font-size: 13px;
  outline: none;
  transition: border-color var(--trans), box-shadow var(--trans);
}

.nav-search input:focus {
  border-color: var(--blue-border);
  box-shadow: 0 0 0 3px var(--blue-dim);
}

.nav-search input::placeholder { color: var(--text-3); }

.nav-search svg {
  position: absolute;
  left: 10px;
  top: 50%;
  transform: translateY(-50%);
  width: 13px;
  height: 13px;
  color: var(--text-3);
  pointer-events: none;
}

/* Generation tools — lives in prompt topbar, not nav */
.prompt-tools {
  display: flex;
  align-items: center;
  gap: 2px;
  flex-shrink: 0;
}

.nav-right {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-shrink: 0;
}

.nav-tier {
  font-size: 10px;
  font-family: var(--mono);
  font-weight: 700;
  color: var(--blue);
  background: var(--blue-dim);
  border-radius: var(--r-xs);
  padding: 3px 8px;
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

/* Avatar — small rounded rectangle, not circle */
.nav-avatar {
  width: 30px;
  height: 30px;
  border-radius: var(--r-sm);
  background: linear-gradient(135deg, #0090E0 0%, #0060B0 100%);
  color: #fff;
  font-size: 12px;
  font-weight: 700;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  position: relative;
  box-shadow: var(--shadow-xs);
  transition: opacity var(--trans);
}

.nav-avatar:hover { opacity: 0.85; }

/* ── Main Content Area ─────────────────────────────────────────────────────── */
.app-body {
  flex: 1;
  display: flex;
  overflow: hidden;
  min-height: 0;
}

/* ── Gallery Panel ─────────────────────────────────────────────────────────── */
.gallery-panel {
  flex: 1;
  display: flex;
  flex-direction: column;
  overflow: hidden;
  min-width: 0;
  background: var(--bg);
}

.gallery-scroll {
  flex: 1;
  overflow-y: auto;
  padding: var(--gap);
  padding-bottom: calc(var(--bar-h) + 24px);
}

/* Justified rows */
.gallery-row {
  display: flex;
  gap: var(--gap);
  margin-bottom: var(--gap);
  overflow: hidden;
}

.gallery-item {
  flex-shrink: 0;
  position: relative;
  overflow: hidden;
  border-radius: var(--r-sm);
  background: var(--surface2);
  cursor: zoom-in;
}

.gallery-item img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  transition: transform 0.4s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

.gallery-item:hover img { transform: scale(1.03); }

.gallery-item-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, rgba(0,0,0,0.65) 0%, transparent 55%);
  opacity: 0;
  transition: opacity var(--trans);
  display: flex;
  align-items: flex-end;
  padding: 10px;
  gap: 5px;
}

.gallery-item:hover .gallery-item-overlay { opacity: 1; }

.overlay-btn {
  width: 28px;
  height: 28px;
  border-radius: var(--r-sm);
  background: rgba(14, 14, 14, 0.7);
  backdrop-filter: blur(12px);
  border: 1px solid rgba(255,255,255,0.12);
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: background var(--trans);
  cursor: pointer;
}

.overlay-btn:hover { background: rgba(30, 30, 30, 0.85); }
.overlay-btn svg { width: 13px; height: 13px; }

.gallery-item-duration {
  position: absolute;
  top: 7px;
  right: 7px;
  font-size: 10px;
  font-family: var(--mono);
  color: rgba(255,255,255,0.9);
  background: rgba(0,0,0,0.6);
  backdrop-filter: blur(6px);
  border-radius: var(--r-xs);
  padding: 2px 6px;
  opacity: 0;
  transition: opacity var(--trans);
}

.gallery-item:hover .gallery-item-duration { opacity: 1; }

/* Empty state */
.gallery-empty {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  height: 100%;
  gap: 14px;
  color: var(--text-3);
  text-align: center;
  padding: 60px 40px;
  pointer-events: none;
  user-select: none;
}

.gallery-empty-icon {
  width: 60px;
  height: 60px;
  border-radius: var(--r-lg);
  background: var(--surface2);
  border: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: center;
}

.gallery-empty-icon svg { width: 26px; height: 26px; color: var(--text-3); }

.gallery-empty h3 {
  font-size: 16px;
  font-weight: 600;
  color: var(--text-2);
  letter-spacing: -0.3px;
}

.gallery-empty p {
  font-size: 13px;
  color: var(--text-3);
  max-width: 260px;
  line-height: 1.7;
}

/* Hint arrow pointing down to the prompt bar */
.gallery-empty-hint {
  font-size: 12px;
  font-family: var(--mono);
  color: var(--blue);
  opacity: 0.6;
  margin-top: 4px;
  letter-spacing: 0.04em;
}

/* ── Right Sidebar ─────────────────────────────────────────────────────────── */
.sidebar {
  width: var(--sidebar-w);
  background: var(--surface);
  border-left: 1px solid var(--border);
  box-shadow: -4px 0 16px rgba(0,0,0,0.3);
  display: flex;
  flex-direction: column;
  flex-shrink: 0;
  overflow-y: auto;
  padding: 14px 10px;
  gap: 1px;
}

.sidebar-section-title {
  font-size: 10px;
  font-weight: 700;
  color: var(--text-3);
  text-transform: uppercase;
  letter-spacing: 0.10em;
  padding: 10px 8px 5px;
  font-family: var(--mono);
}

.sidebar-item {
  display: flex;
  align-items: center;
  gap: 9px;
  padding: 7px 9px;
  border-radius: var(--r-sm);
  font-size: 13px;
  color: var(--text-2);
  cursor: pointer;
  transition: background var(--trans), color var(--trans);
  user-select: none;
}

.sidebar-item:hover { background: var(--surface2); color: var(--text); }
.sidebar-item.active {
  background: var(--surface3);
  color: var(--text);
  box-shadow: var(--inset-top);
}

.sidebar-item svg { width: 14px; height: 14px; flex-shrink: 0; opacity: 0.7; }

.sidebar-item-count {
  margin-left: auto;
  font-size: 10px;
  font-family: var(--mono);
  color: var(--text-3);
}

.sidebar-divider {
  height: 1px;
  background: var(--border);
  margin: 6px 4px;
}

/* ─────────────────────────────────────────────────────────────────────────────
   PROMPT BAR
   ───────────────────────────────────────────────────────────────────────────── */
.prompt-bar {
  position: fixed;
  bottom: 0;
  left: 0;
  right: var(--sidebar-w);
  padding: 0 14px 14px;
  /* Fade gallery content up into the bar */
  background: linear-gradient(to top,
    var(--bg) 60%,
    rgba(7,7,7,0.85) 80%,
    transparent 100%
  );
  z-index: 20;
  pointer-events: none;
}

.prompt-container {
  background: var(--surface);
  /* No border — depth via shadow only */
  box-shadow:
    0 0 0 1px var(--border2),
    0 -4px 20px rgba(0,0,0,0.4),
    0 8px 32px rgba(0,0,0,0.3),
    var(--inset-top);
  border-radius: var(--r-lg);
  pointer-events: all;
  transition: box-shadow var(--trans-slow);
  overflow: hidden;
}

.prompt-container:focus-within {
  box-shadow:
    0 0 0 1px var(--blue-border),
    0 -4px 24px rgba(0,0,0,0.5),
    0 8px 32px rgba(0,0,0,0.3),
    0 0 40px rgba(0,170,255,0.06),
    var(--inset-top);
}

/* Topbar row — style pills left, tools right */
.prompt-topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 7px 10px 5px 12px;
  border-bottom: 1px solid var(--border);
  gap: 8px;
}

/* Style tags — inline in topbar */
.style-pills {
  display: flex;
  gap: 2px;
  flex: 1;
  min-width: 0;
  flex-wrap: nowrap;
  overflow: hidden;
}

.style-pill {
  font-size: 11.5px;
  font-weight: 600;
  color: var(--text-3);
  padding: 4px 10px;
  border-radius: var(--r-xs);
  letter-spacing: 0.01em;
  transition: color var(--trans), background var(--trans);
}

.style-pill:hover { color: var(--text-2); background: var(--surface2); }
.style-pill.active {
  color: var(--blue);
  background: var(--blue-dim);
}

/* Single row: [cards] | [textarea] | [controls] [gen] */
.prompt-controls {
  display: flex;
  align-items: flex-end;
  gap: 6px;
  padding: 8px 10px 10px;
}

/* Textarea — inline, fills space between cards and right controls */
.prompt-textarea {
  flex: 1;
  min-width: 0;
  background: transparent;
  border: none;
  outline: none;
  resize: none;
  color: var(--text);
  font-size: 14px;
  line-height: 1.55;
  padding: 6px 4px;
  min-height: 36px;
  max-height: 120px;
  overflow-y: auto;
  align-self: center;
}

.prompt-textarea::placeholder { color: var(--text-3); }

/* ── Model / LoRA Card Buttons ──────────────────────────────────────────────── */
.model-card-btn {
  display: flex;
  align-items: center;
  gap: 9px;
  padding: 5px 9px 5px 5px;
  background: var(--surface2);
  border: 1px solid var(--border);
  border-radius: var(--r-md);
  cursor: pointer;
  transition: background var(--trans), border-color var(--trans), box-shadow var(--trans);
  min-width: 128px;
  max-width: 160px;
  box-shadow: var(--shadow-xs), var(--inset-top);
  flex-shrink: 0;
  text-align: left;
}

.model-card-btn:hover {
  background: var(--surface3);
  border-color: var(--border2);
  box-shadow: var(--shadow-sm), var(--inset-top);
}

/* Thumbnail square */
.card-thumb {
  width: 36px;
  height: 36px;
  border-radius: var(--r-sm);
  flex-shrink: 0;
  overflow: hidden;
  position: relative;
}

.card-thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

/* Model thumb — gradient placeholder until real previews exist */
.model-card-thumb {
  background: linear-gradient(135deg, #0066CC 0%, #00AAFF 100%);
}

/* LoRA empty state */
.lora-card-thumb.empty {
  background: var(--surface3);
  border: 1.5px dashed var(--border2);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-3);
  border-radius: var(--r-sm);
}

/* LoRA filled state */
.lora-card-thumb.filled {
  background: linear-gradient(135deg, #3D1F6E 0%, #7B35CC 100%);
}

/* Text stack */
.card-info {
  display: flex;
  flex-direction: column;
  gap: 1px;
  flex: 1;
  min-width: 0;
}

.card-label {
  font-size: 9px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.10em;
  color: var(--text-3);
  font-family: var(--mono);
  line-height: 1;
}

.card-name {
  font-size: 12px;
  font-weight: 600;
  color: var(--text);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  line-height: 1.3;
}

.card-name.lora-name-empty {
  color: var(--text-3);
  font-weight: 400;
  font-style: italic;
}

/* Imagen credit count shown below model name */
.card-credits {
  font-size: 10px;
  font-family: system-ui, -apple-system, sans-serif;
  font-weight: 500;
  color: var(--blue);
  line-height: 1.2;
  margin-top: 1px;
  white-space: nowrap;
}
.card-credits.empty { color: var(--coral); }

.card-chevron {
  width: 11px;
  height: 11px;
  color: var(--text-3);
  flex-shrink: 0;
  transition: color var(--trans);
}

.model-card-btn:hover .card-chevron { color: var(--text-2); }

/* Icon control buttons */
.ctrl-btn {
  width: 30px;
  height: 30px;
  border-radius: var(--r-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-3);
  transition: color var(--trans), background var(--trans);
  flex-shrink: 0;
}

.ctrl-btn:hover { color: var(--text-2); background: var(--surface2); }
.ctrl-btn.active { color: var(--blue); background: var(--blue-dim); }
.ctrl-btn svg { width: 15px; height: 15px; }

.ctrl-divider {
  width: 1px;
  height: 16px;
  background: var(--border);
  margin: 0 2px;
  flex-shrink: 0;
}

/* Batch count */
.batch-count {
  display: flex;
  align-items: center;
  gap: 0;
  background: var(--surface2);
  border-radius: var(--r-sm);
  overflow: hidden;
}

.batch-btn {
  width: 24px;
  height: 24px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-2);
  font-size: 15px;
  transition: color var(--trans), background var(--trans);
  line-height: 1;
}

.batch-btn:hover { color: var(--text); background: var(--surface3); }

.batch-num {
  font-size: 13px;
  font-weight: 700;
  color: var(--text);
  font-family: var(--font);
  font-variant-numeric: tabular-nums;
  letter-spacing: -0.02em;
  min-width: 20px;
  text-align: center;
}

.ctrl-spacer { flex: 1; }

/* Advanced toggle */
.advanced-toggle {
  display: flex;
  align-items: center;
  gap: 5px;
  padding: 5px 10px;
  border-radius: var(--r-sm);
  font-size: 12px;
  font-weight: 500;
  color: var(--text-3);
  transition: color var(--trans), background var(--trans);
}

.advanced-toggle:hover { color: var(--text-2); background: var(--surface2); }
.advanced-toggle svg {
  width: 12px;
  height: 12px;
  transition: transform var(--trans);
}
.advanced-toggle.open svg { transform: rotate(180deg); }

/* ── Generate Button — THE hero element ──────────────────────────────────────── */
.gen-btn {
  display: flex;
  align-items: center;
  gap: 7px;
  padding: 9px 18px;
  border-radius: var(--r-md);
  background: var(--blue);
  color: #000;
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.01em;
  flex-shrink: 0;
  box-shadow:
    0 0 20px rgba(0, 170, 255, 0.22),
    0 2px 8px rgba(0, 0, 0, 0.5),
    var(--inset-top);
  transition: opacity var(--trans), transform var(--trans), box-shadow var(--trans);
}

.gen-btn:hover:not(:disabled) {
  opacity: 0.93;
  transform: translateY(-1px);
  box-shadow:
    0 0 32px rgba(0, 170, 255, 0.35),
    0 4px 14px rgba(0, 0, 0, 0.5),
    var(--inset-top);
}

.gen-btn:active:not(:disabled) {
  transform: translateY(0);
  box-shadow:
    0 0 16px rgba(0, 170, 255, 0.2),
    0 1px 4px rgba(0, 0, 0, 0.4);
}

.gen-btn:disabled { opacity: 0.3; cursor: not-allowed; transform: none; }
.gen-btn svg { width: 14px; height: 14px; }

/* Spinning state */
.gen-btn.generating {
  opacity: 0.7;
  cursor: wait;
  transform: none;
}

/* ─────────────────────────────────────────────────────────────────────────────
   ADVANCED SETTINGS PANEL
   ───────────────────────────────────────────────────────────────────────────── */
.settings-panel {
  position: fixed;
  bottom: var(--bar-h);
  left: 0;
  right: var(--sidebar-w);
  background: var(--surface);
  /* Shadow top, not border-top */
  box-shadow: 0 -1px 0 var(--border), 0 -8px 24px rgba(0,0,0,0.4), var(--inset-top);
  padding: 16px 18px;
  z-index: 19;
  transform: translateY(100%);
  transition: transform var(--trans-slow);
  pointer-events: none;
}

.settings-panel.open {
  transform: translateY(0);
  pointer-events: all;
}

.settings-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(160px, 1fr));
  gap: 14px 20px;
}

.settings-field { display: flex; flex-direction: column; gap: 6px; }

.settings-label {
  font-size: 11px;
  font-weight: 600;
  color: var(--text-3);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  font-family: var(--mono);
}

.settings-value {
  font-family: var(--mono);
  color: var(--blue);
}

.settings-input {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--r-sm);
  padding: 7px 10px;
  color: var(--text);
  font-size: 13px;
  outline: none;
  width: 100%;
  transition: border-color var(--trans), box-shadow var(--trans);
  box-shadow: var(--shadow-xs);
}

.settings-input:focus {
  border-color: var(--blue-border);
  box-shadow: 0 0 0 3px var(--blue-dim);
}

select.settings-input { cursor: pointer; }

.settings-slider {
  display: flex;
  align-items: center;
  gap: 10px;
}

.settings-slider input[type="range"] {
  flex: 1;
  accent-color: var(--blue);
  cursor: pointer;
  height: 3px;
}

/* Aspect ratio presets */
.aspect-presets {
  display: flex;
  gap: 5px;
  flex-wrap: wrap;
}

.aspect-btn {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 5px;
  padding: 7px 12px;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--r-sm);
  color: var(--text-2);
  font-size: 11px;
  font-weight: 600;
  transition: color var(--trans), border-color var(--trans), background var(--trans);
  box-shadow: var(--shadow-xs);
}

.aspect-btn:hover { color: var(--text); border-color: var(--border2); }
.aspect-btn.active {
  color: var(--blue);
  border-color: var(--blue-border);
  background: var(--blue-dim);
  box-shadow: 0 0 12px rgba(0,170,255,0.12);
}

.aspect-icon {
  background: currentColor;
  border-radius: 2px;
  opacity: 0.8;
}

.aspect-icon.portrait  { width: 13px; height: 19px; }
.aspect-icon.square    { width: 16px; height: 16px; }
.aspect-icon.landscape { width: 21px; height: 14px; }
.aspect-icon.wide      { width: 26px; height: 13px; }

/* ─────────────────────────────────────────────────────────────────────────────
   GENERATION PROGRESS
   ───────────────────────────────────────────────────────────────────────────── */
.gen-progress {
  position: fixed;
  bottom: calc(var(--bar-h) + 8px);
  left: 14px;
  right: calc(var(--sidebar-w) + 14px);
  height: 2px;
  background: var(--surface2);
  border-radius: 2px;
  overflow: hidden;
  z-index: 21;
  opacity: 0;
  transition: opacity 0.2s;
}

.gen-progress.visible { opacity: 1; }

.gen-progress-fill {
  height: 100%;
  background: linear-gradient(90deg, transparent, var(--blue), transparent);
  border-radius: 2px;
  width: 40%;
  animation: progress-slide 1.6s ease-in-out infinite;
}

@keyframes progress-slide {
  0%   { transform: translateX(-150%); }
  100% { transform: translateX(400%); }
}

/* ─────────────────────────────────────────────────────────────────────────────
   LIGHTBOX
   ───────────────────────────────────────────────────────────────────────────── */
.lightbox {
  position: fixed;
  inset: 0;
  background: rgba(4,4,4,0.94);
  backdrop-filter: blur(8px);
  z-index: 500;
  display: none;
  align-items: center;
  justify-content: center;
}

.lightbox.open { display: flex; }

.lightbox-content {
  position: relative;
  max-width: 92vw;
  max-height: 92vh;
  border-radius: var(--r-lg);
  overflow: hidden;
  box-shadow: 0 40px 120px rgba(0,0,0,0.9), 0 0 0 1px var(--border);
}

.lightbox-content img {
  max-width: 92vw;
  max-height: 92vh;
  object-fit: contain;
  display: block;
}

.lightbox-close {
  position: absolute;
  top: -44px;
  right: 0;
  width: 32px;
  height: 32px;
  border-radius: var(--r-sm);
  background: var(--surface2);
  border: 1px solid var(--border);
  color: var(--text-2);
  font-size: 16px;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: background var(--trans), color var(--trans);
  box-shadow: var(--shadow-sm);
}

.lightbox-close:hover { background: var(--surface3); color: var(--text); }

.lightbox-actions {
  position: absolute;
  bottom: -48px;
  left: 0;
  right: 0;
  display: flex;
  justify-content: center;
  gap: 6px;
}

.lightbox-action {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 7px 14px;
  border-radius: var(--r-sm);
  background: var(--surface2);
  border: 1px solid var(--border);
  color: var(--text-2);
  font-size: 12px;
  font-weight: 500;
  cursor: pointer;
  transition: background var(--trans), color var(--trans);
  box-shadow: var(--shadow-sm);
}

.lightbox-action:hover { background: var(--surface3); color: var(--text); }
.lightbox-action svg { width: 13px; height: 13px; }

/* ─────────────────────────────────────────────────────────────────────────────
   TOAST
   ───────────────────────────────────────────────────────────────────────────── */
.toast {
  position: fixed;
  bottom: calc(var(--bar-h) + 24px);
  left: 50%;
  transform: translateX(-50%) translateY(12px);
  background: var(--surface3);
  border: 1px solid var(--border2);
  border-radius: var(--r-md);
  padding: 10px 18px;
  font-size: 13px;
  white-space: nowrap;
  z-index: 400;
  opacity: 0;
  transition: opacity 0.2s, transform 0.2s;
  pointer-events: none;
  box-shadow: var(--shadow-md);
}

.toast.show {
  opacity: 1;
  transform: translateX(-50%) translateY(0);
}

.toast.error { border-color: rgba(255,61,31,0.4); color: var(--coral); }
.toast.success { border-color: rgba(0,217,126,0.4); color: var(--green); }

/* ─────────────────────────────────────────────────────────────────────────────
   USER MENU DROPDOWN
   ───────────────────────────────────────────────────────────────────────────── */
.user-menu {
  position: absolute;
  top: calc(100% + 8px);
  right: 0;
  width: 200px;
  background: var(--surface2);
  border-radius: var(--r-lg);
  box-shadow: var(--shadow-lg), 0 0 0 1px var(--border2);
  padding: 5px;
  z-index: 200;
  display: none;
}

.user-menu.open { display: block; }

.user-menu-header {
  padding: 10px 11px 10px;
  border-radius: var(--r-sm);
  background: var(--surface3);
  margin-bottom: 4px;
  box-shadow: var(--inset-top);
}

.user-menu-email {
  font-size: 12px;
  color: var(--text-2);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.user-menu-tier {
  font-size: 10px;
  font-family: var(--mono);
  color: var(--blue);
  text-transform: uppercase;
  font-weight: 700;
  margin-top: 3px;
  letter-spacing: 0.06em;
}

.user-menu-item {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 8px 11px;
  border-radius: var(--r-sm);
  font-size: 13px;
  color: var(--text-2);
  cursor: pointer;
  transition: background var(--trans), color var(--trans);
  width: 100%;
  text-align: left;
}

.user-menu-item:hover { background: var(--surface3); color: var(--text); }
.user-menu-item.danger:hover { color: var(--coral); background: rgba(255,61,31,0.06); }
.user-menu-item svg { opacity: 0.6; }

/* ─────────────────────────────────────────────────────────────────────────────
   RESPONSIVE
   ───────────────────────────────────────────────────────────────────────────── */
@media (max-width: 900px) {
  .sidebar { display: none; }
  .prompt-bar { right: 0; }
  .settings-panel { right: 0; }
  .gen-progress { right: 14px; }
  .nav-search { display: none; }
}

/* ── Model / LoRA Picker — above prompt bar ────────────────────────────────── */
/* ── Model / LoRA Picker — above prompt bar ────────────────────────────────── */
.picker-overlay {
  position: absolute;
  bottom: calc(100% + 8px);
  left: 14px;
  right: 14px;
  z-index: 300;
  pointer-events: all;
}

.picker-panel {
  background: var(--surface);
  border: 1px solid var(--border2);
  border-radius: var(--r-lg);
  width: 100%;
  max-height: 56vh;
  display: flex;
  flex-direction: column;
  box-shadow: 0 -8px 32px rgba(0,0,0,0.5), 0 0 0 1px rgba(255,255,255,0.04);
  overflow: hidden;
  animation: pickerSlideUp 0.18s ease;
}

@keyframes pickerSlideUp {
  from { opacity: 0; transform: translateY(8px); }
  to   { opacity: 1; transform: translateY(0); }
}

.picker-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 10px 14px;
  border-bottom: 1px solid var(--border);
  flex-shrink: 0;
}

.picker-title {
  font-size: 12px;
  font-weight: 700;
  color: var(--text-2);
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.picker-close {
  width: 24px;
  height: 24px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-3);
  border-radius: var(--r-xs);
  transition: color var(--trans), background var(--trans);
}
.picker-close:hover { color: var(--text); background: var(--surface3); }

/* Search bar */
.picker-search-wrap {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 8px 14px;
  border-bottom: 1px solid var(--border);
  flex-shrink: 0;
}
.picker-search-icon { color: var(--text-3); flex-shrink: 0; }
.picker-search-input {
  flex: 1;
  background: transparent;
  border: none;
  outline: none;
  font-size: 13px;
  color: var(--text);
  font-family: var(--font);
}
.picker-search-input::placeholder { color: var(--text-3); }

/* Scrollable body */
.picker-body {
  overflow-y: auto;
  flex: 1;
  padding: 12px 14px;
  display: flex;
  flex-direction: column;
  gap: 16px;
}

/* Two-row sections */
.picker-sections { display: flex; flex-direction: column; gap: 16px; }

.picker-section-label {
  display: flex;
  align-items: center;
  gap: 7px;
  margin-bottom: 8px;
}
.picker-section-label-icon {
  width: 18px;
  height: 18px;
  flex-shrink: 0;
  display: flex;
  align-items: center;
  justify-content: center;
}
.picker-section-label-text {
  font-size: 11px;
  font-weight: 700;
  color: var(--text-3);
  letter-spacing: 0.07em;
  text-transform: uppercase;
}

/* Horizontal card row */
.picker-row {
  display: flex;
  gap: 8px;
  overflow-x: auto;
  padding-bottom: 2px;
}
.picker-row::-webkit-scrollbar { height: 3px; }
.picker-row::-webkit-scrollbar-track { background: transparent; }
.picker-row::-webkit-scrollbar-thumb { background: var(--border2); border-radius: 99px; }

/* Cards — horizontal layout */
.picker-card {
  display: flex;
  flex-direction: row;
  align-items: center;
  gap: 10px;
  padding: 9px 12px 9px 9px;
  background: var(--surface2);
  border: 1px solid var(--border);
  border-radius: var(--r-md);
  cursor: pointer;
  transition: background var(--trans), border-color var(--trans), box-shadow var(--trans);
  text-align: left;
  flex-shrink: 0;
  min-width: 160px;
  max-width: 200px;
}
.picker-card:hover {
  background: var(--surface3);
  border-color: var(--border2);
  box-shadow: var(--shadow-xs);
}
.picker-card.active {
  border-color: var(--blue-border);
  background: var(--blue-dim);
  box-shadow: 0 0 0 1px var(--blue-border);
}
.picker-card.placeholder {
  opacity: 0.4;
  cursor: not-allowed;
}
.picker-card.placeholder:hover {
  background: var(--surface2);
  border-color: var(--border);
  box-shadow: none;
}
.picker-card.hidden { display: none; }

/* Card thumb — fixed square with logo */
.picker-card-thumb {
  width: 36px;
  height: 36px;
  border-radius: var(--r-sm);
  flex-shrink: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}
.picker-card-thumb-none {
  background: var(--surface3);
  border: 1.5px dashed var(--border2);
  color: var(--text-3);
}

.picker-card-info {
  display: flex;
  flex-direction: column;
  gap: 2px;
  min-width: 0;
  flex: 1;
}
.picker-card-name {
  font-size: 12px;
  font-weight: 600;
  color: var(--text);
  line-height: 1.3;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.picker-card-meta {
  font-size: 10.5px;
  color: var(--text-3);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.picker-card-credits {
  font-size: 10.5px;
  font-weight: 600;
  color: var(--green);
  margin-top: 1px;
  font-family: system-ui, -apple-system, sans-serif;
}
.picker-card-credits.empty { color: var(--coral); }

.picker-empty {
  font-size: 12px;
  color: var(--text-3);
  padding: 8px 4px;
}

/* ── Utility ───────────────────────────────────────────────────────────────── */
.sr-only { position: absolute; width: 1px; height: 1px; clip: rect(0 0 0 0); overflow: hidden; }