/* ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
   MockupGen — Premium Dark Theme
   ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ */

:root {
  /* Palette */
  --bg-base:     #0a0a0f;
  --bg-card:     rgba(15, 15, 24, 0.85);
  --bg-card-hover: rgba(20, 20, 32, 0.95);
  --bg-input:    rgba(22, 22, 36, 0.9);
  --bg-surface:  rgba(28, 28, 42, 0.7);

  --border:      rgba(255, 255, 255, 0.06);
  --border-hover: rgba(255, 255, 255, 0.12);
  --border-focus: rgba(129, 140, 248, 0.4);

  --text-primary:   rgba(255, 255, 255, 0.95);
  --text-secondary: rgba(255, 255, 255, 0.55);
  --text-muted:     rgba(255, 255, 255, 0.3);

  --accent:         #818cf8;
  --accent-bright:  #a5b4fc;
  --accent-glow:    rgba(129, 140, 248, 0.15);
  --purple:         #c084fc;
  --green:          #34d399;
  --green-dim:      rgba(52, 211, 153, 0.15);
  --red:            #f87171;
  --red-dim:        rgba(248, 113, 113, 0.15);
  --amber:          #fbbf24;

  --radius-sm:   8px;
  --radius-md:   12px;
  --radius-lg:   16px;
  --radius-xl:   20px;

  --shadow-card: 0 1px 3px rgba(0,0,0,0.4), 0 8px 24px rgba(0,0,0,0.3);
  --shadow-glow: 0 0 40px rgba(129, 140, 248, 0.08);

  --font-sans:  'Inter', -apple-system, BlinkMacSystemFont, system-ui, sans-serif;
  --font-mono:  'JetBrains Mono', 'SF Mono', monospace;

  --transition-fast: 0.15s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-med:  0.25s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-slow: 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

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

html {
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-sans);
  background: var(--bg-base);
  color: var(--text-primary);
  min-height: 100vh;
  overflow-x: hidden;
  line-height: 1.6;
}

/* ── Ambient Background ─────────────────────────────────────────────── */
.ambient-bg {
  position: fixed;
  inset: 0;
  z-index: 0;
  overflow: hidden;
  pointer-events: none;
}

.orb {
  position: absolute;
  border-radius: 50%;
  filter: blur(100px);
  opacity: 0.12;
  animation: orbit 25s ease-in-out infinite;
}

.orb-1 {
  width: 500px; height: 500px;
  background: radial-gradient(circle, #818cf8, transparent 70%);
  top: -15%; left: -10%;
  animation-duration: 20s;
}

.orb-2 {
  width: 400px; height: 400px;
  background: radial-gradient(circle, #c084fc, transparent 70%);
  top: 40%; right: -10%;
  animation-duration: 30s;
  animation-delay: -5s;
}

.orb-3 {
  width: 350px; height: 350px;
  background: radial-gradient(circle, #34d399, transparent 70%);
  bottom: -10%; left: 30%;
  animation-duration: 25s;
  animation-delay: -10s;
  opacity: 0.06;
}

@keyframes orbit {
  0%, 100% { transform: translate(0, 0) scale(1); }
  25% { transform: translate(30px, -20px) scale(1.05); }
  50% { transform: translate(-20px, 30px) scale(0.95); }
  75% { transform: translate(15px, 15px) scale(1.02); }
}

/* ── App Shell ──────────────────────────────────────────────────────── */
#app {
  position: relative;
  z-index: 1;
  max-width: 840px;
  margin: 0 auto;
  padding: 0 20px 60px;
}

/* ── Header ─────────────────────────────────────────────────────────── */
.header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 24px 0 32px;
}

.header-left {
  display: flex;
  align-items: center;
  gap: 12px;
}

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

.logo-icon {
  width: 32px;
  height: 32px;
}

.logo-text {
  font-size: 1.25rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  color: var(--text-primary);
}

.logo-accent {
  background: linear-gradient(135deg, var(--accent), var(--purple));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.version-badge {
  font-size: 0.65rem;
  font-weight: 600;
  padding: 3px 8px;
  border-radius: 100px;
  background: var(--accent-glow);
  color: var(--accent-bright);
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.header-right {
  display: flex;
  align-items: center;
  gap: 8px;
}

.status-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--text-muted);
  transition: background var(--transition-fast);
}

.status-dot.online { background: var(--green); box-shadow: 0 0 8px rgba(52, 211, 153, 0.5); }
.status-dot.offline { background: var(--red); }

.status-label {
  font-size: 0.75rem;
  color: var(--text-secondary);
  font-weight: 500;
}

/* ── Cards ──────────────────────────────────────────────────────────── */
.card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  backdrop-filter: blur(20px) saturate(1.2);
  -webkit-backdrop-filter: blur(20px) saturate(1.2);
  box-shadow: var(--shadow-card);
  margin-bottom: 16px;
  overflow: hidden;
  transition: border-color var(--transition-med), box-shadow var(--transition-med);
}

.card:hover {
  border-color: var(--border-hover);
}

.card-header {
  padding: 24px 28px 0;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 12px;
}

.card-header h2 {
  font-size: 1.1rem;
  font-weight: 650;
  letter-spacing: -0.01em;
}

.card-subtitle {
  width: 100%;
  font-size: 0.82rem;
  color: var(--text-secondary);
  margin-top: -4px;
}

.card-body {
  padding: 20px 28px 28px;
}

.step-badge {
  width: 28px;
  height: 28px;
  border-radius: 8px;
  background: var(--accent-glow);
  color: var(--accent-bright);
  font-size: 0.8rem;
  font-weight: 700;
  display: grid;
  place-items: center;
  flex-shrink: 0;
}

.step-badge.step-active {
  background: linear-gradient(135deg, var(--accent), var(--purple));
  color: white;
  animation: pulse 2s infinite;
}

.step-badge.step-success {
  background: var(--green-dim);
  color: var(--green);
}

@keyframes pulse {
  0%, 100% { box-shadow: 0 0 0 0 rgba(129, 140, 248, 0.4); }
  50% { box-shadow: 0 0 0 8px rgba(129, 140, 248, 0); }
}

/* ── Inputs ─────────────────────────────────────────────────────────── */
.input-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}

@media (max-width: 640px) {
  .input-grid { grid-template-columns: 1fr; }
}

.input-group {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.input-group label {
  font-size: 0.78rem;
  font-weight: 600;
  color: var(--text-secondary);
  display: flex;
  align-items: center;
  gap: 6px;
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

.input-icon {
  width: 14px;
  height: 14px;
  color: var(--accent);
  flex-shrink: 0;
}

input[type="text"],
input[type="password"] {
  background: var(--bg-input);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 10px 14px;
  font-family: var(--font-mono);
  font-size: 0.82rem;
  color: var(--text-primary);
  outline: none;
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
  width: 100%;
}

input:focus {
  border-color: var(--border-focus);
  box-shadow: 0 0 0 3px var(--accent-glow);
}

input::placeholder {
  color: var(--text-muted);
}

.input-hint {
  font-size: 0.7rem;
  color: var(--text-muted);
}

/* ── API Keys Section ───────────────────────────────────────────────── */
.api-keys-section {
  margin-top: 16px;
  border-top: 1px solid var(--border);
  padding-top: 16px;
}

.api-keys-section summary {
  cursor: pointer;
  font-size: 0.82rem;
  font-weight: 600;
  color: var(--text-secondary);
  display: flex;
  align-items: center;
  gap: 8px;
  list-style: none;
  user-select: none;
  padding: 4px 0;
}

.api-keys-section summary::-webkit-details-marker { display: none; }

.summary-icon {
  width: 16px;
  height: 16px;
  color: var(--accent);
}

.key-status {
  font-size: 0.7rem;
  font-weight: 500;
  color: var(--text-muted);
  margin-left: auto;
}

.keys-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
  margin-top: 12px;
}

@media (max-width: 640px) {
  .keys-grid { grid-template-columns: 1fr; }
}

/* ── Config Grid ────────────────────────────────────────────────────── */
.config-grid {
  display: flex;
  gap: 20px;
  flex-wrap: wrap;
  align-items: flex-start;
}

.config-item label {
  display: block;
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--text-secondary);
  text-transform: uppercase;
  letter-spacing: 0.04em;
  margin-bottom: 6px;
}

.select-wrapper {
  position: relative;
}

select {
  appearance: none;
  background: var(--bg-input);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 8px 32px 8px 12px;
  font-family: var(--font-sans);
  font-size: 0.82rem;
  color: var(--text-primary);
  cursor: pointer;
  outline: none;
  transition: border-color var(--transition-fast);
}

select:focus { border-color: var(--border-focus); }

.select-wrapper::after {
  content: '▾';
  position: absolute;
  right: 10px;
  top: 50%;
  transform: translateY(-50%);
  color: var(--text-muted);
  pointer-events: none;
  font-size: 0.7rem;
}

/* Toggle */
.toggle-item { display: flex; flex-direction: column; }

.toggle-wrapper {
  display: flex;
  align-items: center;
  gap: 8px;
}

.toggle-wrapper input[type="checkbox"] {
  position: absolute;
  opacity: 0;
  width: 0;
  height: 0;
}

.toggle-label {
  cursor: pointer;
}

.toggle-track {
  display: block;
  width: 36px;
  height: 20px;
  border-radius: 10px;
  background: var(--bg-surface);
  border: 1px solid var(--border);
  position: relative;
  transition: var(--transition-fast);
}

.toggle-track::after {
  content: '';
  display: block;
  width: 14px;
  height: 14px;
  border-radius: 50%;
  background: var(--text-muted);
  position: absolute;
  top: 2px;
  left: 2px;
  transition: var(--transition-fast);
}

input:checked + .toggle-label .toggle-track {
  background: var(--accent-glow);
  border-color: var(--accent);
}

input:checked + .toggle-label .toggle-track::after {
  background: var(--accent);
  transform: translateX(16px);
}

.toggle-desc {
  font-size: 0.72rem;
  color: var(--text-muted);
}

/* ── Preview ────────────────────────────────────────────────────────── */
.preview-stats {
  display: flex;
  gap: 16px;
  margin-bottom: 20px;
}

.stat {
  background: var(--bg-surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 16px 24px;
  text-align: center;
  flex: 1;
  transition: var(--transition-fast);
}

.stat-highlight {
  background: var(--accent-glow);
  border-color: rgba(129, 140, 248, 0.2);
}

.stat-num {
  display: block;
  font-size: 1.8rem;
  font-weight: 800;
  letter-spacing: -0.03em;
  line-height: 1;
  margin-bottom: 4px;
}

.stat-highlight .stat-num {
  background: linear-gradient(135deg, var(--accent), var(--purple));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.stat-label {
  font-size: 0.72rem;
  font-weight: 600;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.file-lists {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}

.file-list h4 {
  font-size: 0.82rem;
  font-weight: 600;
  margin-bottom: 8px;
  color: var(--text-secondary);
}

.file-list ul {
  list-style: none;
  max-height: 200px;
  overflow-y: auto;
  scrollbar-width: thin;
  scrollbar-color: var(--border) transparent;
}

.file-list li {
  padding: 6px 10px;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--text-secondary);
  border-radius: var(--radius-sm);
  transition: var(--transition-fast);
  display: flex;
  align-items: center;
  gap: 6px;
}

.file-list li:hover {
  background: var(--bg-surface);
  color: var(--text-primary);
}

.file-list .hex-dot {
  width: 10px;
  height: 10px;
  border-radius: 3px;
  flex-shrink: 0;
  border: 1px solid rgba(255,255,255,0.1);
}

/* ── Action Bar ─────────────────────────────────────────────────────── */
.action-bar {
  display: flex;
  justify-content: center;
  padding: 8px 0 16px;
}

.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 12px 28px;
  border: none;
  border-radius: var(--radius-md);
  font-family: var(--font-sans);
  font-size: 0.88rem;
  font-weight: 600;
  cursor: pointer;
  transition: var(--transition-med);
  outline: none;
}

.btn-icon {
  width: 18px;
  height: 18px;
}

.btn-primary {
  background: linear-gradient(135deg, var(--accent), var(--purple));
  color: white;
  box-shadow: 0 4px 20px rgba(129, 140, 248, 0.25);
}

.btn-primary:hover:not(:disabled) {
  box-shadow: 0 6px 30px rgba(129, 140, 248, 0.4);
  transform: translateY(-1px);
}

.btn-primary:active:not(:disabled) {
  transform: translateY(0);
}

.btn:disabled {
  opacity: 0.4;
  cursor: not-allowed;
  transform: none !important;
  box-shadow: none !important;
}

.btn.loading {
  position: relative;
  color: transparent !important;
}

.btn.loading::after {
  content: '';
  position: absolute;
  width: 18px;
  height: 18px;
  border: 2px solid rgba(255,255,255,0.3);
  border-top-color: white;
  border-radius: 50%;
  animation: spin 0.6s linear infinite;
}

@keyframes spin { to { transform: rotate(360deg); } }

/* ── Progress ───────────────────────────────────────────────────────── */
.progress-bar-container {
  background: var(--bg-surface);
  border-radius: 100px;
  height: 8px;
  overflow: hidden;
  margin-bottom: 12px;
}

.progress-bar {
  height: 100%;
  border-radius: 100px;
  background: linear-gradient(90deg, var(--accent), var(--purple), var(--green));
  background-size: 200% 100%;
  animation: shimmer 2s ease-in-out infinite;
  transition: width var(--transition-med);
}

@keyframes shimmer {
  0% { background-position: 100% 50%; }
  100% { background-position: 0% 50%; }
}

.progress-info {
  display: flex;
  justify-content: space-between;
  font-size: 0.78rem;
  font-weight: 600;
  color: var(--text-secondary);
  margin-bottom: 16px;
}

.progress-log {
  max-height: 200px;
  overflow-y: auto;
  scrollbar-width: thin;
  scrollbar-color: var(--border) transparent;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  line-height: 1.8;
  color: var(--text-muted);
}

.log-entry {
  padding: 2px 0;
  display: flex;
  gap: 8px;
  border-bottom: 1px solid rgba(255,255,255,0.02);
}

.log-time {
  color: var(--text-muted);
  flex-shrink: 0;
}

.log-msg { color: var(--text-secondary); }
.log-msg.success { color: var(--green); }
.log-msg.error { color: var(--red); }
.log-msg.info { color: var(--accent-bright); }

/* ── Results Gallery ────────────────────────────────────────────────── */
.results-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
  gap: 16px;
}

.result-card {
  background: var(--bg-surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  overflow: hidden;
  cursor: pointer;
  transition: var(--transition-med);
  position: relative;
}

.result-card:hover {
  border-color: var(--accent);
  transform: translateY(-2px);
  box-shadow: var(--shadow-glow);
}

.result-card img {
  width: 100%;
  aspect-ratio: 3 / 4;
  object-fit: cover;
  display: block;
}

.result-meta {
  padding: 10px 12px;
}

.result-title {
  font-size: 0.72rem;
  font-weight: 600;
  color: var(--text-primary);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.result-info {
  font-size: 0.65rem;
  color: var(--text-muted);
  margin-top: 2px;
  display: flex;
  gap: 8px;
}

.result-badge {
  position: absolute;
  top: 8px;
  right: 8px;
  font-size: 0.6rem;
  font-weight: 700;
  padding: 2px 6px;
  border-radius: 4px;
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

.result-badge.ok {
  background: var(--green-dim);
  color: var(--green);
}

.result-badge.fail {
  background: var(--red-dim);
  color: var(--red);
}

/* ── Lightbox ───────────────────────────────────────────────────────── */
.lightbox {
  position: fixed;
  inset: 0;
  z-index: 1000;
  display: grid;
  place-items: center;
}

.lightbox-backdrop {
  position: absolute;
  inset: 0;
  background: rgba(0, 0, 0, 0.85);
  backdrop-filter: blur(10px);
}

.lightbox-content {
  position: relative;
  max-width: 90vw;
  max-height: 90vh;
}

.lightbox-content img {
  max-width: 100%;
  max-height: 80vh;
  object-fit: contain;
  border-radius: var(--radius-md);
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.5);
}

.lightbox-close {
  position: absolute;
  top: -12px;
  right: -12px;
  width: 32px;
  height: 32px;
  border-radius: 50%;
  border: none;
  background: var(--bg-card);
  color: var(--text-primary);
  font-size: 1.2rem;
  cursor: pointer;
  display: grid;
  place-items: center;
  z-index: 1;
  transition: var(--transition-fast);
}

.lightbox-close:hover { background: var(--red); }

.lightbox-caption {
  text-align: center;
  font-size: 0.82rem;
  color: var(--text-secondary);
  margin-top: 12px;
}

.lightbox-download {
  display: inline-block;
  margin-top: 12px;
  padding: 8px 20px;
  background: linear-gradient(135deg, var(--accent), var(--purple));
  color: white;
  text-decoration: none;
  border-radius: var(--radius-sm);
  font-family: var(--font-sans);
  font-size: 0.82rem;
  font-weight: 600;
  text-align: center;
  transition: var(--transition-fast);
}

.lightbox-download:hover {
  box-shadow: 0 4px 20px rgba(129, 140, 248, 0.4);
  transform: translateY(-1px);
}

/* ── Elapsed Timer ─────────────────────────────────────────────────── */
.elapsed-time {
  font-family: var(--font-mono);
  color: var(--accent-bright);
  font-variant-numeric: tabular-nums;
}

/* ── Download Link on Cards ────────────────────────────────────────── */
.download-link {
  display: inline-block;
  margin-top: 6px;
  font-size: 0.68rem;
  font-weight: 600;
  color: var(--accent-bright);
  text-decoration: none;
  opacity: 0.6;
  transition: var(--transition-fast);
}

.download-link:hover {
  opacity: 1;
  color: var(--accent);
}

.result-card:hover .download-link {
  opacity: 1;
}

/* ── Utility ────────────────────────────────────────────────────────── */
.hidden { display: none !important; }

/* Scrollbar */
::-webkit-scrollbar { width: 6px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: var(--border); border-radius: 3px; }
::-webkit-scrollbar-thumb:hover { background: var(--border-hover); }

/* ── Responsive ─────────────────────────────────────────────────────── */
@media (max-width: 640px) {
  #app { padding: 0 12px 40px; }
  .card-header { padding: 16px 20px 0; }
  .card-body { padding: 14px 20px 20px; }
  .preview-stats { flex-direction: column; }
  .file-lists { grid-template-columns: 1fr; }
  .results-grid { grid-template-columns: repeat(auto-fill, minmax(150px, 1fr)); }
  .config-grid { flex-direction: column; }
}