/* =============================================
   Pritis – Main CSS
   Global variables, reset, layout, components
   ============================================= */

:root {
  --primary: #0077FF;
  --primary-dark: #0055CC;
  --primary-light: #3399FF;
  --secondary: #00C8FF;
  --success: #10b981;
  --warning: #f59e0b;
  --danger: #ef4444;
  --bg: #F0F6FF;
  --bg-card: #ffffff;
  --text: #0A1628;
  --text-muted: #4A6080;
  --border: #D6E4F7;
  --shadow: 0 1px 3px rgba(0,0,0,0.08), 0 1px 2px rgba(0,0,0,0.06);
  --shadow-md: 0 4px 6px rgba(0,0,0,0.07), 0 2px 4px rgba(0,0,0,0.06);
  --shadow-lg: 0 10px 15px rgba(0,0,0,0.1), 0 4px 6px rgba(0,0,0,0.05);
  --radius: 10px;
  --radius-sm: 6px;
  --radius-lg: 16px;
  --sidebar-w: 240px;
  --header-h: 64px;
  --font: 'Inter', system-ui, -apple-system, sans-serif;
}

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

html { font-size: 16px; }

body {
  font-family: var(--font);
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
  min-height: 100vh;
}

a { color: var(--primary); text-decoration: none; }
a:hover { text-decoration: underline; }

img { max-width: 100%; display: block; }

/* ── Layout ── */
.app-layout {
  display: flex;
  min-height: 100vh;
}

.sidebar {
  width: var(--sidebar-w);
  background: #04132B;
  color: #99CCFF;
  display: flex;
  flex-direction: column;
  position: fixed;
  top: 0; left: 0; bottom: 0;
  z-index: 100;
  overflow: hidden;
  transition: width 0.25s ease, transform 0.25s ease;
}

.sidebar-logo {
  padding: 20px 16px 16px;
  display: flex;
  align-items: center;
  gap: 10px;
  border-bottom: 1px solid rgba(255,255,255,0.08);
  flex-shrink: 0;
  min-width: var(--sidebar-w);        /* keeps items aligned during transition */
}

.sidebar-logo .logo-icon {
  width: 36px; height: 36px;
  background: var(--primary-light);
  border-radius: 8px;
  display: flex; align-items: center; justify-content: center;
  font-size: 18px; font-weight: 800; color: #fff;
  flex-shrink: 0;
}

.sidebar-logo .logo-text {
  font-size: 1.15rem;
  font-weight: 700;
  color: #fff;
  white-space: nowrap;
  transition: opacity 0.15s ease;
}

/* Sidebar collapse toggle button */
.sidebar-toggle-btn {
  margin-left: auto;
  flex-shrink: 0;
  width: 28px; height: 28px;
  border: none;
  background: rgba(255,255,255,0.08);
  border-radius: 6px;
  cursor: pointer;
  display: flex; align-items: center; justify-content: center;
  color: #99CCFF;
  transition: background 0.15s;
}
.sidebar-toggle-btn:hover { background: rgba(255,255,255,0.18); color: #fff; }
.sidebar-toggle-btn svg { width: 14px; height: 14px; flex-shrink: 0; transition: transform 0.25s ease; }

.sidebar-nav {
  flex: 1;
  padding: 16px 12px;
  display: flex;
  flex-direction: column;
  gap: 4px;
  min-width: var(--sidebar-w);
  overflow: hidden;
}

.nav-item {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 10px 12px;
  border-radius: var(--radius-sm);
  color: #60AAEE;
  font-size: 0.9rem;
  font-weight: 500;
  cursor: pointer;
  transition: background 0.15s, color 0.15s;
  text-decoration: none;
  white-space: nowrap;
}

.nav-item:hover { background: rgba(255,255,255,0.08); color: #fff; text-decoration: none; }
.nav-item.active { background: var(--primary); color: #fff; }

/* Locked (premium-only) nav items */
.nav-item.locked { opacity: 0.55; }
.nav-item.locked:hover { background: rgba(255,255,255,0.04); color: #60AAEE; }

.nav-lock {
  font-size: 0.55rem;
  font-weight: 800;
  letter-spacing: .5px;
  background: #0077FF;
  color: #fff;
  padding: 1px 5px;
  border-radius: 4px;
  vertical-align: middle;
  margin-left: 4px;
}

.nav-item svg { width: 18px; height: 18px; flex-shrink: 0; }

.nav-label { transition: opacity 0.15s ease; }

.sidebar-footer {
  padding: 16px 12px;
  border-top: 1px solid rgba(255,255,255,0.08);
  min-width: var(--sidebar-w);
}

/* ── Collapsed sidebar ── */
body.nav-collapsed .sidebar      { width: 0; }
body.nav-collapsed .main-content { margin-left: 0; }

/* Floating expand button – visible only when sidebar is collapsed */
.sidebar-expand-btn {
  display: none;
  position: fixed;
  top: 14px;
  left: 8px;
  z-index: 200;
  width: 36px; height: 36px;
  border: none;
  background: #04132B;
  border-radius: 8px;
  cursor: pointer;
  align-items: center;
  justify-content: center;
  color: #99CCFF;
  box-shadow: 0 2px 8px rgba(0,0,0,0.3);
  transition: background 0.15s, color 0.15s;
}
.sidebar-expand-btn:hover { background: #0A2A60; color: #fff; }
.sidebar-expand-btn svg { width: 18px; height: 18px; }

body.nav-collapsed .sidebar-expand-btn { display: flex; }

.main-content {
  margin-left: var(--sidebar-w);
  flex: 1;
  display: flex;
  flex-direction: column;
  min-height: 100vh;
  transition: margin-left 0.25s ease;
}

.top-header {
  height: var(--header-h);
  background: var(--bg-card);
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 28px;
  position: sticky;
  top: 0;
  z-index: 90;
}

.top-header h1 {
  font-size: 1.2rem;
  font-weight: 600;
  color: var(--text);
}

.user-badge {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 0.875rem;
  color: var(--text-muted);
}

.avatar {
  width: 36px; height: 36px;
  background: var(--primary);
  border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  color: #fff;
  font-weight: 700;
  font-size: 0.8rem;
}

.page-body {
  padding: 28px;
  flex: 1;
}

/* ── Cards ── */
.card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 24px;
  box-shadow: var(--shadow);
}

.card-title {
  font-size: 1rem;
  font-weight: 600;
  color: var(--text);
  margin-bottom: 16px;
}

/* ── Buttons ── */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 9px 18px;
  border-radius: var(--radius-sm);
  font-size: 0.875rem;
  font-weight: 600;
  cursor: pointer;
  border: none;
  transition: all 0.15s;
  white-space: nowrap;
}

.btn-primary { background: var(--primary); color: #fff; }
.btn-primary:hover { background: var(--primary-dark); }

.btn-secondary { background: var(--bg); color: var(--text); border: 1px solid var(--border); }
.btn-secondary:hover { background: var(--border); }

.btn-success { background: var(--success); color: #fff; }
.btn-success:hover { filter: brightness(0.92); }

.btn-danger { background: var(--danger); color: #fff; }
.btn-danger:hover { filter: brightness(0.92); }

.btn-outline { background: transparent; color: var(--primary); border: 1.5px solid var(--primary); }
.btn-outline:hover { background: var(--primary); color: #fff; }

.btn-sm { padding: 6px 12px; font-size: 0.8rem; }
.btn-lg { padding: 12px 28px; font-size: 1rem; }

.btn:disabled { opacity: 0.5; cursor: not-allowed; }

/* ── Forms ── */
.form-group {
  margin-bottom: 18px;
}

.form-label {
  display: block;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--text);
  margin-bottom: 6px;
}

.form-control {
  width: 100%;
  padding: 10px 14px;
  border: 1.5px solid var(--border);
  border-radius: var(--radius-sm);
  font-size: 0.9rem;
  font-family: var(--font);
  color: var(--text);
  background: var(--bg-card);
  transition: border-color 0.15s;
  outline: none;
}

.form-control:focus { border-color: var(--primary); box-shadow: 0 0 0 3px rgba(79,70,229,0.1); }

select.form-control { cursor: pointer; }

textarea.form-control { resize: vertical; min-height: 100px; }

.form-hint { font-size: 0.78rem; color: var(--text-muted); margin-top: 5px; }

/* ── Badges ── */
.badge {
  display: inline-flex;
  align-items: center;
  padding: 2px 8px;
  border-radius: 20px;
  font-size: 0.75rem;
  font-weight: 600;
}

.badge-primary { background: #ede9fe; color: var(--primary-dark); }
.badge-success { background: #d1fae5; color: #065f46; }
.badge-warning { background: #fef3c7; color: #92400e; }
.badge-danger  { background: #fee2e2; color: #991b1b; }
.badge-muted   { background: var(--border); color: var(--text-muted); }

/* ── Alerts ── */
.alert {
  padding: 12px 16px;
  border-radius: var(--radius-sm);
  font-size: 0.875rem;
  margin-bottom: 16px;
  display: flex;
  align-items: flex-start;
  gap: 10px;
}

.alert-error   { background: #fee2e2; color: #991b1b; border: 1px solid #fca5a5; }
.alert-success { background: #d1fae5; color: #065f46; border: 1px solid #6ee7b7; }
.alert-info    { background: #dbeafe; color: #1e40af; border: 1px solid #93c5fd; }

/* ── Tables ── */
.table-wrap { overflow-x: auto; }

table { width: 100%; border-collapse: collapse; font-size: 0.875rem; }
th { background: var(--bg); font-weight: 600; text-align: left; padding: 10px 14px; border-bottom: 2px solid var(--border); color: var(--text-muted); }
td { padding: 12px 14px; border-bottom: 1px solid var(--border); }
tr:last-child td { border-bottom: none; }
tr:hover td { background: #f8fafc; }

/* ── Modal ── */
.modal-overlay {
  position: fixed; inset: 0;
  background: rgba(0,0,0,0.5);
  display: flex; align-items: center; justify-content: center;
  z-index: 1000;
  padding: 16px;
}

.modal-overlay.hidden { display: none; }

.modal {
  background: var(--bg-card);
  border-radius: var(--radius-lg);
  padding: 28px;
  width: 100%;
  max-width: 520px;
  box-shadow: var(--shadow-lg);
  max-height: 90vh;
  overflow-y: auto;
}

.modal-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 20px;
}

.modal-title { font-size: 1.1rem; font-weight: 700; }

.modal-close {
  background: none; border: none; cursor: pointer;
  color: var(--text-muted); font-size: 1.4rem; line-height: 1;
  padding: 4px;
}

/* ── Spinner ── */
.spinner {
  display: inline-block;
  width: 18px; height: 18px;
  border: 2.5px solid rgba(255,255,255,0.3);
  border-top-color: #fff;
  border-radius: 50%;
  animation: spin 0.7s linear infinite;
}

.spinner-dark {
  border-color: rgba(79,70,229,0.2);
  border-top-color: var(--primary);
}

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

/* ── Empty state ── */
.empty-state {
  text-align: center;
  padding: 60px 20px;
  color: var(--text-muted);
}

.empty-state .icon { font-size: 3rem; margin-bottom: 16px; }
.empty-state h3 { font-size: 1.1rem; color: var(--text); margin-bottom: 8px; }
.empty-state p { font-size: 0.875rem; }

/* ── Tabs ── */
.tabs { display: flex; gap: 4px; border-bottom: 2px solid var(--border); margin-bottom: 24px; }

.tab-btn {
  padding: 10px 20px;
  border: none;
  background: none;
  font-size: 0.9rem;
  font-weight: 600;
  cursor: pointer;
  color: var(--text-muted);
  border-bottom: 2px solid transparent;
  margin-bottom: -2px;
  transition: all 0.15s;
}

.tab-btn.active { color: var(--primary); border-bottom-color: var(--primary); }
.tab-btn:hover:not(.active) { color: var(--text); }

.tab-panel { display: none; }
.tab-panel.active { display: block; }

/* ── Utility ── */
.flex { display: flex; }
.flex-col { flex-direction: column; }
.items-center { align-items: center; }
.justify-between { justify-content: space-between; }
.gap-2 { gap: 8px; }
.gap-3 { gap: 12px; }
.gap-4 { gap: 16px; }
.mt-1 { margin-top: 4px; }
.mt-2 { margin-top: 8px; }
.mt-3 { margin-top: 12px; }
.mt-4 { margin-top: 16px; }
.mt-6 { margin-top: 24px; }
.mb-4 { margin-bottom: 16px; }
.mb-6 { margin-bottom: 24px; }
.text-sm { font-size: 0.875rem; }
.text-xs { font-size: 0.75rem; }
.text-muted { color: var(--text-muted); }
.text-center { text-align: center; }
.font-semibold { font-weight: 600; }
.font-bold { font-weight: 700; }
.w-full { width: 100%; }
.hidden { display: none !important; }
.grid { display: grid; }
.grid-2 { grid-template-columns: repeat(2, 1fr); gap: 16px; }
.grid-3 { grid-template-columns: repeat(3, 1fr); gap: 16px; }
.grid-4 { grid-template-columns: repeat(4, 1fr); gap: 16px; }

@media (max-width: 900px) {
  .grid-4, .grid-3 { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 640px) {
  .grid-4, .grid-3, .grid-2 { grid-template-columns: 1fr; }
  .sidebar { transform: translateX(-100%); width: var(--sidebar-w); }
  .main-content { margin-left: 0; }
  .header-menu-btn { display: flex; }
  .sidebar-expand-btn { display: none !important; }
  .top-header { padding: 0 14px; gap: 8px; }
  .top-header h1 { font-size: 1rem; }
  .page-body { padding: 16px; }
  .user-badge span { display: none; }  /* hide name, show avatar only */
}

/* ── Mobile hamburger button (shown in top-header on mobile) ── */
.header-menu-btn {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  color: var(--text-muted);
  padding: 6px;
  border-radius: 6px;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}
.header-menu-btn:hover { background: var(--bg); color: var(--text); }
.header-menu-btn svg { width: 22px; height: 22px; display: block; }

/* ── Sidebar overlay (mobile) ── */
.sidebar-overlay {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.45);
  z-index: 99;
}
body.sidebar-open .sidebar-overlay { display: block; }
body.sidebar-open .sidebar { transform: translateX(0) !important; }

/* ── File upload zone ── */
.upload-zone {
  border: 2px dashed var(--border);
  border-radius: var(--radius);
  padding: 40px 20px;
  text-align: center;
  cursor: pointer;
  transition: all 0.2s;
  color: var(--text-muted);
}

.upload-zone:hover, .upload-zone.drag-over {
  border-color: var(--primary);
  background: rgba(79,70,229,0.04);
}

.upload-zone .upload-icon { font-size: 2.5rem; margin-bottom: 12px; }

/* ── Progress bar ── */
.progress-bar {
  height: 8px;
  background: var(--border);
  border-radius: 4px;
  overflow: hidden;
}

.progress-fill {
  height: 100%;
  background: var(--primary);
  border-radius: 4px;
  transition: width 0.3s ease;
}

/* ── Score circle ── */
.score-circle {
  width: 80px; height: 80px;
  border-radius: 50%;
  background: conic-gradient(var(--primary) calc(var(--pct) * 1%), var(--border) 0);
  display: flex; align-items: center; justify-content: center;
  position: relative;
}

.score-circle::after {
  content: '';
  width: 62px; height: 62px;
  background: var(--bg-card);
  border-radius: 50%;
  position: absolute;
}

.score-value {
  position: relative;
  z-index: 1;
  font-size: 0.9rem;
  font-weight: 700;
  color: var(--primary);
}

/* ── Upload / Generation Progress Bar ──────────────────────────────────────── */
.progress-track {
  background: var(--border);
  border-radius: 99px;
  height: 8px;
  overflow: hidden;
  width: 100%;
  margin: 6px 0;
}
.progress-fill {
  height: 100%;
  background: linear-gradient(90deg, var(--primary), var(--primary-light));
  border-radius: 99px;
  transition: width 0.3s ease;
  min-width: 4px;
}
.progress-pct {
  font-size: 0.75rem;
  color: var(--text-muted);
  font-weight: 500;
}