/* ═══════════════════════════════════════════════════════════════════════════
   MockupMotion — Main Stylesheet
   Premium dark UI inspired by Apple, Adobe, and Runway
   ═══════════════════════════════════════════════════════════════════════════ */

/* ── Google Fonts ── */
@import url('https://fonts.googleapis.com/css2?family=Inter:ital,wght@0,300;0,400;0,500;0,600;0,700;0,800;1,400&display=swap');

/* ── CSS Custom Properties (Dark Theme) ─────────────────────────────────── */
:root {
  /* Brand */
  --color-primary:     #C6A972;
  --color-primary-hover: #d4b880;
  --color-primary-dim: rgba(198,169,114,.15);

  /* Background */
  --bg-base:      #111111;
  --bg-surface:   #1A1A1A;
  --bg-elevated:  #212121;
  --bg-overlay:   rgba(0,0,0,.75);

  /* Borders */
  --border:       #2a2a2a;
  --border-light: #333333;

  /* Text */
  --text-primary:   #FFFFFF;
  --text-secondary: #A0A0A0;
  --text-muted:     #666666;

  /* Status */
  --color-success: #22c55e;
  --color-danger:  #ef4444;
  --color-warning: #f59e0b;
  --color-info:    #3b82f6;

  /* Sidebar */
  --sidebar-width:        240px;
  --sidebar-collapsed:    0px;

  /* Spacing */
  --radius-sm:  6px;
  --radius-md:  10px;
  --radius-lg:  16px;
  --radius-xl:  20px;

  /* Shadows */
  --shadow-sm: 0 1px 3px rgba(0,0,0,.4);
  --shadow-md: 0 4px 16px rgba(0,0,0,.5);
  --shadow-lg: 0 8px 32px rgba(0,0,0,.6);
  --shadow-glow: 0 0 24px rgba(198,169,114,.25);

  /* Transitions */
  --transition: all .2s cubic-bezier(.4,0,.2,1);
  --transition-slow: all .35s cubic-bezier(.4,0,.2,1);
}

/* ── Light Theme ─────────────────────────────────────────────────────────── */
[data-theme="light"] {
  --bg-base:      #F0EDE8;
  --bg-surface:   #FFFFFF;
  --bg-elevated:  #FAF8F5;
  --bg-overlay:   rgba(240,237,232,.85);
  --border:       #E0D9CF;
  --border-light: #C8C0B6;
  --text-primary:   #1A1A1A;
  --text-secondary: #5A5A5A;
  --text-muted:     #999999;
  --shadow-md: 0 4px 16px rgba(0,0,0,.12);
  --shadow-lg: 0 8px 32px rgba(0,0,0,.18);
}

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

html { font-size: 16px; scroll-behavior: smooth; }

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  background: var(--bg-base);
  color: var(--text-primary);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  display: flex;
  min-height: 100vh;
  overflow-x: hidden;
  transition: background .3s, color .3s;
}

a { color: inherit; text-decoration: none; }
button { cursor: pointer; font-family: inherit; }
input, select, textarea { font-family: inherit; }
img { display: block; max-width: 100%; }

/* ── Scrollbar ───────────────────────────────────────────────────────────── */
::-webkit-scrollbar { width: 6px; height: 6px; }
::-webkit-scrollbar-track { background: var(--bg-base); }
::-webkit-scrollbar-thumb { background: var(--border-light); border-radius: 3px; }
::-webkit-scrollbar-thumb:hover { background: var(--text-muted); }

/* ══════════════════════════════════════════════════════════════════════════
   SIDEBAR
   ══════════════════════════════════════════════════════════════════════════ */
.sidebar {
  width: var(--sidebar-width);
  min-height: 100vh;
  background: var(--bg-surface);
  border-right: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  position: fixed;
  left: 0;
  top: 0;
  bottom: 0;
  z-index: 100;
  transition: var(--transition-slow);
}

.sidebar.collapsed {
  transform: translateX(calc(-1 * var(--sidebar-width)));
}

.sidebar-header {
  padding: 1.5rem 1.25rem 1rem;
  border-bottom: 1px solid var(--border);
}

.sidebar-logo {
  display: flex;
  align-items: center;
  gap: .625rem;
  text-decoration: none;
  color: var(--text-primary);
}

.logo-emoji { font-size: 1.5rem; }
.logo-text {
  font-weight: 700;
  font-size: 1.1rem;
  background: linear-gradient(135deg, var(--color-primary), #E8D5A3);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

/* Nav */
.sidebar-nav {
  flex: 1;
  padding: 1rem .75rem;
  display: flex;
  flex-direction: column;
  gap: .25rem;
}

.nav-item {
  display: flex;
  align-items: center;
  gap: .75rem;
  padding: .625rem .875rem;
  border-radius: var(--radius-md);
  color: var(--text-secondary);
  font-size: .875rem;
  font-weight: 500;
  transition: var(--transition);
  border: 1px solid transparent;
}

.nav-item:hover {
  background: var(--bg-elevated);
  color: var(--text-primary);
}

.nav-item.active {
  background: var(--color-primary-dim);
  color: var(--color-primary);
  border-color: rgba(198,169,114,.2);
}

.nav-icon { font-size: 1.1rem; width: 1.25rem; text-align: center; }

/* Sidebar footer */
.sidebar-footer {
  padding: 1rem .75rem;
  border-top: 1px solid var(--border);
}

.stats-mini {
  display: flex;
  gap: .5rem;
  margin-bottom: .75rem;
}

.stat-item {
  flex: 1;
  text-align: center;
  padding: .5rem .25rem;
  background: var(--bg-elevated);
  border-radius: var(--radius-sm);
  border: 1px solid var(--border);
}

.stat-val {
  display: block;
  font-weight: 700;
  font-size: .95rem;
  color: var(--color-primary);
}
.stat-lbl {
  display: block;
  font-size: .65rem;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: .04em;
}

.sidebar-actions {
  display: flex;
  gap: .5rem;
}

.btn-icon-sm {
  width: 36px;
  height: 36px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border);
  background: var(--bg-elevated);
  color: var(--text-secondary);
  font-size: 1rem;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  transition: var(--transition);
  text-decoration: none;
}
.btn-icon-sm:hover {
  border-color: var(--color-primary);
  color: var(--color-primary);
}

/* ══════════════════════════════════════════════════════════════════════════
   MAIN CONTENT
   ══════════════════════════════════════════════════════════════════════════ */
.main-content {
  flex: 1;
  margin-left: var(--sidebar-width);
  display: flex;
  flex-direction: column;
  min-height: 100vh;
  transition: margin-left var(--transition-slow);
}

.main-content.sidebar-hidden {
  margin-left: 0;
}

/* ── Top Bar ─────────────────────────────────────────────────────────────── */
.topbar {
  display: flex;
  align-items: center;
  gap: 1rem;
  padding: 1rem 1.5rem;
  background: var(--bg-surface);
  border-bottom: 1px solid var(--border);
  position: sticky;
  top: 0;
  z-index: 50;
  backdrop-filter: blur(12px);
}

.sidebar-toggle {
  background: none;
  border: 1px solid var(--border);
  color: var(--text-secondary);
  width: 36px;
  height: 36px;
  border-radius: var(--radius-sm);
  font-size: 1.1rem;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: var(--transition);
  flex-shrink: 0;
}
.sidebar-toggle:hover { border-color: var(--color-primary); color: var(--color-primary); }

.topbar-title {
  display: flex;
  align-items: baseline;
  gap: .75rem;
  flex: 1;
  min-width: 0;
}

.topbar-title h1 {
  font-size: 1.25rem;
  font-weight: 700;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  outline: none;
}

.topbar-count {
  font-size: .8rem;
  color: var(--text-muted);
  white-space: nowrap;
}

.topbar-actions {
  display: flex;
  align-items: center;
  gap: .75rem;
  flex-shrink: 0;
}

/* Rename button */
.rename-btn {
  background: none;
  border: none;
  font-size: .85rem;
  color: var(--text-muted);
  padding: .2rem;
  border-radius: var(--radius-sm);
  transition: var(--transition);
  opacity: 0;
}
.topbar-title:hover .rename-btn { opacity: 1; }
.rename-btn:hover { color: var(--color-primary); }

/* ── Buttons ─────────────────────────────────────────────────────────────── */
.btn {
  display: inline-flex;
  align-items: center;
  gap: .5rem;
  padding: .575rem 1.125rem;
  border-radius: var(--radius-md);
  font-size: .875rem;
  font-weight: 600;
  border: 1px solid transparent;
  transition: var(--transition);
  white-space: nowrap;
  cursor: pointer;
  font-family: inherit;
}

.btn-primary {
  background: var(--color-primary);
  color: #111111;
  border-color: var(--color-primary);
}
.btn-primary:hover:not(:disabled) {
  background: var(--color-primary-hover);
  transform: translateY(-1px);
  box-shadow: var(--shadow-glow);
}

.btn-success {
  background: var(--color-success);
  color: #fff;
  border-color: var(--color-success);
}
.btn-success:hover:not(:disabled) {
  background: #16a34a;
  transform: translateY(-1px);
}

.btn-danger {
  background: transparent;
  color: var(--color-danger);
  border-color: var(--color-danger);
}
.btn-danger:hover:not(:disabled) {
  background: rgba(239,68,68,.12);
}

.btn-ghost {
  background: transparent;
  color: var(--text-secondary);
  border-color: var(--border);
}
.btn-ghost:hover { background: var(--bg-elevated); color: var(--text-primary); }

.btn:disabled { opacity: .5; cursor: not-allowed; transform: none !important; }

.btn-full  { width: 100%; justify-content: center; }
.btn-lg    { padding: .75rem 1.5rem; font-size: .95rem; }
.btn-arrow { transition: transform .2s; }
.btn:hover .btn-arrow { transform: translateX(3px); }

/* ── Status Badges ───────────────────────────────────────────────────────── */
.status-pill {
  display: inline-flex;
  align-items: center;
  padding: .25rem .75rem;
  border-radius: 99px;
  font-size: .75rem;
  font-weight: 600;
  letter-spacing: .03em;
}
.status-draft      { background: rgba(100,116,139,.15); color: #94a3b8; border: 1px solid rgba(100,116,139,.3); }
.status-processing { background: rgba(245,158,11,.15);  color: #fbbf24; border: 1px solid rgba(245,158,11,.3); animation: pulse-badge 1.5s infinite; }
.status-complete   { background: rgba(34,197,94,.15);   color: #22c55e; border: 1px solid rgba(34,197,94,.3); }
.status-failed     { background: rgba(239,68,68,.15);   color: #f87171; border: 1px solid rgba(239,68,68,.3); }

@keyframes pulse-badge {
  0%,100% { opacity: 1; }
  50%      { opacity: .65; }
}

/* ── Search ──────────────────────────────────────────────────────────────── */
.search-wrapper {
  position: relative;
}
.search-icon {
  position: absolute;
  left: .75rem;
  top: 50%;
  transform: translateY(-50%);
  font-size: .875rem;
  pointer-events: none;
  color: var(--text-muted);
}
.search-input {
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  color: var(--text-primary);
  padding: .525rem .875rem .525rem 2.25rem;
  border-radius: var(--radius-md);
  font-size: .875rem;
  width: 220px;
  transition: var(--transition);
}
.search-input:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px var(--color-primary-dim);
}

/* ── Content Area ────────────────────────────────────────────────────────── */
.content-area {
  flex: 1;
  padding: 1.5rem;
}

/* ── Project Grid ────────────────────────────────────────────────────────── */
.project-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
  gap: 1.25rem;
}

.project-card {
  background: var(--bg-surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: var(--transition-slow);
  position: relative;
}

.project-card:hover {
  border-color: var(--color-primary);
  transform: translateY(-3px);
  box-shadow: var(--shadow-lg), var(--shadow-glow);
}

.card-thumb-link { display: block; }

.card-thumb {
  aspect-ratio: 16/9;
  background: var(--bg-elevated);
  overflow: hidden;
  position: relative;
}
.card-thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform .4s ease;
}
.project-card:hover .card-thumb img { transform: scale(1.04); }

.thumb-placeholder {
  width: 100%;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-direction: column;
  gap: .5rem;
}
.thumb-icon { font-size: 2rem; opacity: .3; }

.card-status-badge {
  position: absolute;
  top: .625rem;
  right: .625rem;
  padding: .2rem .6rem;
  border-radius: 99px;
  font-size: .7rem;
  font-weight: 600;
}

.card-body { padding: .875rem 1rem; }

.card-title-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: .5rem;
}

.card-title {
  font-size: .9rem;
  font-weight: 600;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  flex: 1;
}

/* Card menu */
.card-menu { position: relative; }
.card-menu-btn {
  background: none;
  border: none;
  color: var(--text-muted);
  font-size: 1.2rem;
  padding: .2rem .4rem;
  border-radius: var(--radius-sm);
  transition: var(--transition);
  line-height: 1;
}
.card-menu-btn:hover { background: var(--bg-elevated); color: var(--text-primary); }

.card-dropdown {
  position: absolute;
  right: 0;
  top: calc(100% + 4px);
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: .375rem;
  min-width: 145px;
  display: none;
  z-index: 200;
  box-shadow: var(--shadow-lg);
  animation: fadeInDown .15s ease;
}
.card-dropdown.open { display: block; }

@keyframes fadeInDown {
  from { opacity: 0; transform: translateY(-4px); }
  to   { opacity: 1; transform: translateY(0); }
}

.dropdown-item {
  display: flex;
  align-items: center;
  gap: .5rem;
  padding: .5rem .75rem;
  font-size: .825rem;
  color: var(--text-secondary);
  border-radius: var(--radius-sm);
  background: none;
  border: none;
  width: 100%;
  text-align: left;
  transition: var(--transition);
  cursor: pointer;
  font-family: inherit;
}
.dropdown-item:hover { background: var(--bg-surface); color: var(--text-primary); }
.dropdown-item.danger:hover { color: var(--color-danger); }

.card-meta {
  display: flex;
  flex-wrap: wrap;
  gap: .375rem;
  margin-bottom: .4rem;
}
.meta-badge {
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  color: var(--text-muted);
  font-size: .7rem;
  padding: .1rem .5rem;
  border-radius: 99px;
}
.card-date {
  font-size: .75rem;
  color: var(--text-muted);
}

/* ── Empty State ─────────────────────────────────────────────────────────── */
.empty-state {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 5rem 2rem;
  gap: 1rem;
}
.empty-icon { font-size: 4rem; opacity: .3; }
.empty-state h2 { font-size: 1.5rem; font-weight: 700; }
.empty-state p  { color: var(--text-secondary); max-width: 400px; }

/* ══════════════════════════════════════════════════════════════════════════
   MODALS
   ══════════════════════════════════════════════════════════════════════════ */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: var(--bg-overlay);
  backdrop-filter: blur(8px);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 1000;
  padding: 1rem;
  animation: fadeIn .2s ease;
}

@keyframes fadeIn { from { opacity: 0; } to { opacity: 1; } }

.modal {
  width: 100%;
  max-width: 500px;
  border-radius: var(--radius-xl);
  animation: slideUp .25s cubic-bezier(.4,0,.2,1);
}
.modal-sm { max-width: 420px; }
.modal-lg { max-width: 800px; }

@keyframes slideUp {
  from { opacity: 0; transform: translateY(16px) scale(.97); }
  to   { opacity: 1; transform: translateY(0) scale(1); }
}

.glass-card {
  background: var(--bg-surface);
  border: 1px solid var(--border);
  box-shadow: var(--shadow-lg);
}

.modal-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1.25rem 1.5rem 0;
}
.modal-title { font-size: 1.1rem; font-weight: 700; }
.modal-close {
  background: none;
  border: none;
  color: var(--text-muted);
  font-size: 1.1rem;
  width: 32px;
  height: 32px;
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: var(--transition);
}
.modal-close:hover { background: var(--bg-elevated); color: var(--text-primary); }

.modal-body   { padding: 1.25rem 1.5rem; }
.modal-footer { padding: 0 1.5rem 1.5rem; display: flex; justify-content: flex-end; gap: .75rem; }

/* ── Form Controls ───────────────────────────────────────────────────────── */
.form-group { margin-bottom: 1rem; }
.form-label { display: block; font-size: .875rem; font-weight: 500; margin-bottom: .5rem; color: var(--text-secondary); }

.form-control {
  width: 100%;
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  color: var(--text-primary);
  padding: .625rem .875rem;
  border-radius: var(--radius-md);
  font-size: .9rem;
  transition: var(--transition);
  font-family: inherit;
}
.form-control:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px var(--color-primary-dim);
}

.form-control-sm {
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  color: var(--text-primary);
  padding: .375rem .625rem;
  border-radius: var(--radius-sm);
  font-size: .825rem;
  width: 100px;
  font-family: inherit;
}
.form-control-sm:focus { outline: none; border-color: var(--color-primary); }
.form-label-sm { font-size: .75rem; color: var(--text-muted); margin-bottom: .25rem; display: block; }

/* Input with icon */
.input-wrapper { position: relative; }
.input-icon {
  position: absolute;
  left: .875rem;
  top: 50%;
  transform: translateY(-50%);
  font-size: .9rem;
  pointer-events: none;
}
.input-wrapper .form-control { padding-left: 2.5rem; padding-right: 2.75rem; }
.toggle-password {
  position: absolute;
  right: .75rem;
  top: 50%;
  transform: translateY(-50%);
  background: none;
  border: none;
  font-size: .9rem;
  cursor: pointer;
  color: var(--text-muted);
}

/* ── Range Input ─────────────────────────────────────────────────────────── */
.range-input {
  width: 100%;
  height: 5px;
  border-radius: 99px;
  background: var(--bg-elevated);
  outline: none;
  -webkit-appearance: none;
  cursor: pointer;
}
.range-input::-webkit-slider-thumb {
  -webkit-appearance: none;
  width: 18px;
  height: 18px;
  border-radius: 50%;
  background: var(--color-primary);
  border: 2px solid var(--bg-surface);
  cursor: pointer;
  transition: transform .15s;
}
.range-input::-webkit-slider-thumb:hover { transform: scale(1.2); }

/* ── Toggle (checkbox) ───────────────────────────────────────────────────── */
.toggle-label {
  display: flex;
  align-items: center;
  gap: .75rem;
  cursor: pointer;
  font-size: .875rem;
}
.toggle-check { display: none; }
.toggle-track {
  width: 40px;
  height: 22px;
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: 99px;
  position: relative;
  transition: background .2s;
  flex-shrink: 0;
}
.toggle-track::after {
  content: '';
  position: absolute;
  width: 16px;
  height: 16px;
  background: #fff;
  border-radius: 50%;
  top: 2px;
  left: 2px;
  transition: transform .2s;
}
.toggle-check:checked + .toggle-track { background: var(--color-primary); border-color: var(--color-primary); }
.toggle-check:checked + .toggle-track::after { transform: translateX(18px); }

/* ── Alert ───────────────────────────────────────────────────────────────── */
.alert {
  display: flex;
  align-items: center;
  gap: .625rem;
  padding: .75rem 1rem;
  border-radius: var(--radius-md);
  font-size: .875rem;
}
.alert-danger  { background: rgba(239,68,68,.12); border: 1px solid rgba(239,68,68,.3); color: #fca5a5; }
.alert-success { background: rgba(34,197,94,.12);  border: 1px solid rgba(34,197,94,.3);  color: #86efac; }
.alert-icon { font-size: 1rem; }
.mb-4 { margin-bottom: 1rem; }
.mt-2 { margin-top: .5rem; }
.mt-3 { margin-top: .75rem; }

/* ── Toasts ──────────────────────────────────────────────────────────────── */
.toast-container {
  position: fixed;
  bottom: 1.5rem;
  right: 1.5rem;
  display: flex;
  flex-direction: column;
  gap: .5rem;
  z-index: 2000;
}

.toast {
  display: flex;
  align-items: center;
  gap: .625rem;
  padding: .75rem 1rem;
  border-radius: var(--radius-md);
  font-size: .875rem;
  font-weight: 500;
  min-width: 280px;
  max-width: 380px;
  box-shadow: var(--shadow-lg);
  animation: slideInRight .25s cubic-bezier(.4,0,.2,1);
  border: 1px solid;
}

@keyframes slideInRight {
  from { opacity: 0; transform: translateX(24px); }
  to   { opacity: 1; transform: translateX(0); }
}

.toast-success { background: rgba(34,197,94,.15);  border-color: rgba(34,197,94,.3);  color: #86efac; }
.toast-error   { background: rgba(239,68,68,.15);  border-color: rgba(239,68,68,.3);  color: #fca5a5; }
.toast-info    { background: rgba(59,130,246,.15); border-color: rgba(59,130,246,.3); color: #93c5fd; }
.toast-warning { background: rgba(245,158,11,.15); border-color: rgba(245,158,11,.3); color: #fcd34d; }

.toast.fadeOut { animation: fadeOut .3s ease forwards; }
@keyframes fadeOut { to { opacity: 0; transform: translateX(16px); } }

/* ══════════════════════════════════════════════════════════════════════════
   EDITOR PAGE
   ══════════════════════════════════════════════════════════════════════════ */
.editor-main { overflow: hidden; }

.editor-layout {
  display: grid;
  grid-template-columns: 1fr 360px;
  gap: 0;
  height: calc(100vh - 64px);
  overflow: hidden;
}

/* ── Image Panel ─────────────────────────────────────────────────────────── */
.editor-panel {
  display: flex;
  flex-direction: column;
  overflow: hidden;
  border-right: 1px solid var(--border);
}

.panel-images {
  background: var(--bg-base);
}

.panel-header {
  padding: 1rem 1.25rem .75rem;
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: baseline;
  gap: .75rem;
  flex-shrink: 0;
}
.panel-title {
  font-size: 1rem;
  font-weight: 700;
  display: flex;
  align-items: center;
  gap: .5rem;
}
.panel-subtitle { font-size: .75rem; color: var(--text-muted); }

.image-count-badge {
  background: var(--color-primary);
  color: #111;
  font-size: .7rem;
  font-weight: 700;
  padding: .1rem .45rem;
  border-radius: 99px;
  min-width: 20px;
  text-align: center;
}

/* Upload zone */
.upload-zone {
  margin: .875rem;
  border: 2px dashed var(--border);
  border-radius: var(--radius-lg);
  padding: 1.5rem;
  text-align: center;
  cursor: pointer;
  transition: var(--transition);
  flex-shrink: 0;
}
.upload-zone:hover, .upload-zone.dragover {
  border-color: var(--color-primary);
  background: var(--color-primary-dim);
}
.upload-zone-inner { pointer-events: none; }
.upload-icon { font-size: 2rem; margin-bottom: .5rem; }
.upload-title { font-weight: 600; margin-bottom: .25rem; }
.upload-sub { font-size: .875rem; color: var(--text-secondary); }
.upload-link { color: var(--color-primary); cursor: pointer; text-decoration: underline; pointer-events: all; }
.upload-formats { font-size: .75rem; color: var(--text-muted); margin-top: .5rem; }

.upload-zone-sm {
  margin: 0;
  padding: 1rem;
  border-radius: var(--radius-md);
}
.upload-zone-label {
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: .5rem;
  font-size: .875rem;
  color: var(--text-secondary);
}
.upload-zone-label:hover { color: var(--color-primary); }

/* Upload progress */
.upload-progress-wrap {
  margin: 0 .875rem .5rem;
  display: flex;
  align-items: center;
  gap: .75rem;
  flex-shrink: 0;
}
.upload-progress-bar {
  flex: 1;
  height: 4px;
  background: var(--bg-elevated);
  border-radius: 99px;
  overflow: hidden;
  position: relative;
}
.upload-progress-bar::after {
  content: '';
  position: absolute;
  left: 0; top: 0; bottom: 0;
  width: var(--progress, 0%);
  background: var(--color-primary);
  border-radius: 99px;
  transition: width .3s ease;
}
.upload-progress-label { font-size: .75rem; color: var(--text-muted); white-space: nowrap; }

/* Image grid (SortableJS) */
.image-grid {
  flex: 1;
  overflow-y: auto;
  padding: .25rem .875rem .875rem;
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(130px, 1fr));
  gap: .625rem;
  align-content: start;
}

.image-card {
  border-radius: var(--radius-md);
  overflow: hidden;
  background: var(--bg-surface);
  border: 1px solid var(--border);
  cursor: grab;
  transition: var(--transition);
  position: relative;
}
.image-card:active { cursor: grabbing; }
.image-card:hover { border-color: var(--color-primary); }
.image-card.sortable-ghost { opacity: .35; }
.image-card.sortable-chosen { box-shadow: var(--shadow-glow); }

.image-thumb-wrap {
  aspect-ratio: 1;
  overflow: hidden;
  position: relative;
}
.image-thumb {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform .3s;
}
.image-card:hover .image-thumb { transform: scale(1.05); }

.image-overlay {
  position: absolute;
  inset: 0;
  background: rgba(0,0,0,.55);
  display: flex;
  align-items: center;
  justify-content: center;
  gap: .375rem;
  opacity: 0;
  transition: opacity .2s;
}
.image-card:hover .image-overlay { opacity: 1; }

.img-btn {
  background: rgba(255,255,255,.15);
  border: 1px solid rgba(255,255,255,.25);
  color: #fff;
  width: 30px;
  height: 30px;
  border-radius: var(--radius-sm);
  font-size: .8rem;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: var(--transition);
  cursor: pointer;
}
.img-btn:hover { background: rgba(255,255,255,.3); }
.img-btn-delete:hover { background: rgba(239,68,68,.7); border-color: var(--color-danger); }

.image-label {
  padding: .35rem .5rem .1rem;
  font-size: .7rem;
  color: var(--text-secondary);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.image-effect-badge {
  padding: .1rem .5rem .35rem;
  font-size: .65rem;
  color: var(--color-primary);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

/* ── Settings Panel ──────────────────────────────────────────────────────── */
.panel-settings {
  background: var(--bg-surface);
  border-right: none;
  overflow: hidden;
}

.settings-tabs {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  border-bottom: 1px solid var(--border);
  flex-shrink: 0;
}

.settings-tab {
  background: none;
  border: none;
  color: var(--text-muted);
  font-size: .72rem;
  font-weight: 600;
  padding: .875rem .25rem;
  cursor: pointer;
  border-bottom: 2px solid transparent;
  transition: var(--transition);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: .25rem;
  font-family: inherit;
}
.settings-tab:hover { color: var(--text-primary); }
.settings-tab.active { color: var(--color-primary); border-bottom-color: var(--color-primary); }

.tab-panel {
  display: none;
  flex: 1;
  overflow-y: auto;
  padding: 1rem;
  flex-direction: column;
  gap: .125rem;
}
.tab-panel.active { display: flex; }

.settings-section {
  margin-bottom: 1.375rem;
}

.section-title {
  font-size: .775rem;
  font-weight: 600;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: .06em;
  margin-bottom: .625rem;
}

/* Aspect ratio grid */
.aspect-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: .375rem;
}
.aspect-btn {
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  color: var(--text-secondary);
  border-radius: var(--radius-md);
  padding: .5rem .25rem;
  font-size: .75rem;
  font-weight: 600;
  cursor: pointer;
  transition: var(--transition);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: .35rem;
  font-family: inherit;
}
.aspect-btn:hover { border-color: var(--color-primary); color: var(--text-primary); }
.aspect-btn.active { border-color: var(--color-primary); background: var(--color-primary-dim); color: var(--color-primary); }

/* Aspect preview shapes */
.aspect-preview {
  background: currentColor;
  opacity: .5;
  border-radius: 2px;
}
.aspect-16-9  { width: 28px; height: 16px; }
.aspect-9-16  { width: 16px; height: 28px; }
.aspect-1-1   { width: 22px; height: 22px; }
.aspect-4-5   { width: 20px; height: 25px; }

/* Toggle button group */
.btn-group {
  display: flex;
  flex-wrap: wrap;
  gap: .375rem;
}
.toggle-btn {
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  color: var(--text-secondary);
  border-radius: var(--radius-sm);
  padding: .375rem .75rem;
  font-size: .8rem;
  font-weight: 600;
  cursor: pointer;
  transition: var(--transition);
  font-family: inherit;
}
.toggle-btn:hover { border-color: var(--color-primary); color: var(--text-primary); }
.toggle-btn.active { border-color: var(--color-primary); background: var(--color-primary-dim); color: var(--color-primary); }

.custom-duration-wrap { margin-top: .625rem; display: flex; align-items: center; gap: .5rem; }

/* Transition grid */
.transition-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: .375rem;
}
.transition-btn {
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  color: var(--text-secondary);
  border-radius: var(--radius-md);
  padding: .5rem .25rem;
  font-size: .725rem;
  font-weight: 600;
  cursor: pointer;
  transition: var(--transition);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: .25rem;
  font-family: inherit;
}
.transition-btn:hover { border-color: var(--color-primary); color: var(--text-primary); }
.transition-btn.active { border-color: var(--color-primary); background: var(--color-primary-dim); color: var(--color-primary); }
.trans-icon { font-size: 1rem; }

/* File badge */
.file-badge {
  display: flex;
  align-items: center;
  gap: .5rem;
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: .5rem .75rem;
  font-size: .8rem;
  color: var(--text-secondary);
}
.file-badge-remove {
  margin-left: auto;
  background: none;
  border: none;
  color: var(--text-muted);
  cursor: pointer;
  font-size: .8rem;
  transition: color .15s;
}
.file-badge-remove:hover { color: var(--color-danger); }

/* Position grid */
.position-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: .375rem;
}
.position-btn {
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  color: var(--text-secondary);
  border-radius: var(--radius-md);
  padding: .5rem;
  font-size: .775rem;
  font-weight: 500;
  cursor: pointer;
  transition: var(--transition);
  font-family: inherit;
}
.position-btn:hover { border-color: var(--color-primary); color: var(--text-primary); }
.position-btn.active { border-color: var(--color-primary); background: var(--color-primary-dim); color: var(--color-primary); }

/* Export summary */
.export-summary {
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  overflow: hidden;
}
.export-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: .625rem .875rem;
  font-size: .825rem;
  border-bottom: 1px solid var(--border);
}
.export-row:last-child { border-bottom: none; }
.export-row span { color: var(--text-secondary); }
.export-row strong { font-weight: 600; }

.settings-note {
  font-size: .75rem;
  color: var(--text-muted);
  text-align: center;
  margin-top: .5rem;
}

/* Effect picker */
.effect-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: .5rem;
}
.effect-btn {
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  color: var(--text-secondary);
  border-radius: var(--radius-md);
  padding: .625rem .875rem;
  font-size: .825rem;
  font-weight: 500;
  cursor: pointer;
  text-align: left;
  transition: var(--transition);
  font-family: inherit;
  display: flex;
  align-items: center;
  gap: .5rem;
}
.effect-btn:hover { border-color: var(--color-primary); color: var(--text-primary); background: var(--color-primary-dim); }
.effect-btn.selected { border-color: var(--color-primary); background: var(--color-primary-dim); color: var(--color-primary); }

/* ── Processing Overlay ───────────────────────────────────────────────────── */
.processing-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,.85);
  backdrop-filter: blur(12px);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 900;
  padding: 1rem;
}

.processing-card {
  max-width: 480px;
  width: 100%;
  padding: 2.5rem;
  border-radius: var(--radius-xl);
  text-align: center;
}

.processing-icon {
  font-size: 3rem;
  margin-bottom: 1rem;
  animation: spin-icon 3s linear infinite;
}
@keyframes spin-icon {
  0%  { transform: rotate(0deg) scale(1); }
  50% { transform: rotate(180deg) scale(1.1); }
  100%{ transform: rotate(360deg) scale(1); }
}

.processing-title { font-size: 1.5rem; font-weight: 700; margin-bottom: .5rem; }
.processing-subtitle { color: var(--text-secondary); margin-bottom: 1.5rem; }

.progress-bar-wrap {
  display: flex;
  align-items: center;
  gap: .875rem;
  margin-bottom: .75rem;
}
.progress-bar-track {
  flex: 1;
  height: 8px;
  background: var(--bg-elevated);
  border-radius: 99px;
  overflow: hidden;
}
.progress-bar-fill {
  height: 100%;
  background: linear-gradient(90deg, var(--color-primary), #E8D5A3);
  border-radius: 99px;
  transition: width .5s ease;
  position: relative;
}
.progress-bar-fill::after {
  content: '';
  position: absolute;
  top: 0; right: 0; bottom: 0;
  width: 40px;
  background: linear-gradient(90deg, transparent, rgba(255,255,255,.3));
  animation: shimmer 1.5s infinite;
}
@keyframes shimmer { from { opacity: 0; } 50% { opacity: 1; } to { opacity: 0; } }

.progress-percent { font-size: .875rem; font-weight: 700; color: var(--color-primary); min-width: 38px; text-align: right; }
.processing-eta   { font-size: .8rem; color: var(--text-muted); margin-bottom: 1.5rem; min-height: 1.2em; }

.processing-tips {
  display: flex;
  flex-direction: column;
  gap: .375rem;
  padding: 1rem;
  background: var(--bg-elevated);
  border-radius: var(--radius-md);
  border: 1px solid var(--border);
}
.processing-tips p { font-size: .8rem; color: var(--text-muted); }

/* ══════════════════════════════════════════════════════════════════════════
   AUTH PAGE
   ══════════════════════════════════════════════════════════════════════════ */
.auth-page {
  display: block;
  background: var(--bg-base);
}

.auth-bg {
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 0;
}
.auth-gradient {
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse 60% 50% at 50% 0%, rgba(198,169,114,.12), transparent),
    radial-gradient(ellipse 40% 40% at 80% 100%, rgba(198,169,114,.08), transparent);
}

.auth-container {
  position: relative;
  z-index: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 100vh;
  padding: 2rem;
}

.auth-card {
  width: 100%;
  max-width: 420px;
  padding: 2.5rem;
  border-radius: var(--radius-xl);
}

.auth-logo {
  text-align: center;
  margin-bottom: 2rem;
}
.logo-icon { font-size: 3rem; margin-bottom: .75rem; }
.auth-app-name {
  font-size: 1.75rem;
  font-weight: 800;
  background: linear-gradient(135deg, var(--color-primary), #E8D5A3);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  margin-bottom: .375rem;
}
.auth-tagline { color: var(--text-muted); font-size: .875rem; }
.auth-footer  { margin-top: 1.25rem; text-align: center; font-size: .8rem; color: var(--text-muted); }
.auth-footer code { background: var(--bg-elevated); padding: .1rem .3rem; border-radius: 3px; }

/* ══════════════════════════════════════════════════════════════════════════
   UTILITY CLASSES
   ══════════════════════════════════════════════════════════════════════════ */
.text-muted   { color: var(--text-muted); }
.text-primary { color: var(--text-primary); }
.text-danger  { color: var(--color-danger); }

/* ══════════════════════════════════════════════════════════════════════════
   RESPONSIVE
   ══════════════════════════════════════════════════════════════════════════ */
@media (max-width: 1100px) {
  .editor-layout { grid-template-columns: 1fr 300px; }
}

@media (max-width: 900px) {
  .sidebar { transform: translateX(calc(-1 * var(--sidebar-width))); }
  .sidebar.mobile-open { transform: translateX(0); box-shadow: var(--shadow-lg); }
  .main-content { margin-left: 0; }

  .editor-layout {
    grid-template-columns: 1fr;
    grid-template-rows: auto 1fr;
    height: auto;
  }
  .panel-images  { height: 60vh; }
  .panel-settings { height: auto; }
}

@media (max-width: 600px) {
  .project-grid { grid-template-columns: repeat(auto-fill, minmax(160px, 1fr)); }
  .topbar { padding: .75rem 1rem; gap: .625rem; }
  .topbar-title h1 { font-size: 1rem; }
  .search-input { width: 140px; }
  .content-area { padding: 1rem; }
}