/* ═══════════════════════════════════════════════════════════════
   DentGenie Admin Panel — Premium Dark Theme
   ═══════════════════════════════════════════════════════════════ */

@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700&family=Outfit:wght@400;600;700;900&family=JetBrains+Mono:wght@400;500&display=swap');

/* ─── Design Tokens ─── */
:root {
  --bg:           #050811;
  --bg-card:      rgba(15, 22, 38, 0.75);
  --bg-input:     rgba(7, 11, 22, 0.8);
  --border:       rgba(255, 255, 255, 0.08);
  --border-focus: rgba(237, 28, 36, 0.55);

  --accent:       #ed1c24;
  --accent-hover: #ff3b42;
  --accent-glow:  rgba(237, 28, 36, 0.35);
  --cyan:         #00eefc;
  --cyan-glow:    rgba(0, 238, 252, 0.25);

  --text:         #f8fafc;
  --text-muted:   #64748b;
  --text-dim:     #94a3b8;

  --success:      #10b981;
  --warning:      #f59e0b;
  --error:        #ef4444;

  --radius:       12px;
  --ease:         cubic-bezier(0.16, 1, 0.3, 1);
}

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

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

body {
  font-family: 'Inter', -apple-system, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
  min-height: 100dvh;
  overflow-x: hidden;
}

/* ─── Background ─── */
.bg-glow {
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 0;
  background:
    radial-gradient(ellipse 80% 40% at 20% 0%, rgba(237,28,36,0.07) 0%, transparent 60%),
    radial-gradient(ellipse 60% 50% at 80% 100%, rgba(0,238,252,0.05) 0%, transparent 60%),
    #050811;
}

/* ─── Auth Screen ─── */
#authScreen {
  position: fixed;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 10;
  padding: 24px;
}

.auth-card {
  background: rgba(12, 18, 32, 0.95);
  border: 1px solid var(--border);
  border-radius: 20px;
  padding: 48px 40px;
  width: 100%;
  max-width: 420px;
  backdrop-filter: blur(20px);
  box-shadow: 0 40px 80px rgba(0,0,0,0.6), 0 0 0 1px rgba(255,255,255,0.03);
}

.auth-logo {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 32px;
}

.auth-logo img {
  height: 42px;
  width: auto;
  border-radius: 8px;
}

.auth-logo .brand-name {
  font-family: 'Outfit', sans-serif;
  font-size: 20px;
  font-weight: 900;
  color: var(--accent);
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.auth-logo .brand-tag {
  font-family: 'JetBrains Mono', monospace;
  font-size: 9px;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.12em;
}

.auth-title {
  font-family: 'Outfit', sans-serif;
  font-size: 24px;
  font-weight: 700;
  margin-bottom: 6px;
}

.auth-sub {
  font-size: 13px;
  color: var(--text-muted);
  margin-bottom: 32px;
}

.auth-error {
  background: rgba(239,68,68,0.1);
  border: 1px solid rgba(239,68,68,0.3);
  border-radius: 8px;
  padding: 10px 14px;
  font-size: 13px;
  color: #fca5a5;
  margin-bottom: 20px;
  display: none;
}

.auth-error.visible { display: block; }

/* ─── Form Elements (shared) ─── */
.form-group {
  margin-bottom: 18px;
}

.form-label {
  display: block;
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--text-dim);
  margin-bottom: 7px;
}

.form-input {
  width: 100%;
  background: var(--bg-input);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 11px 14px;
  font-size: 14px;
  font-family: 'Inter', sans-serif;
  color: var(--text);
  outline: none;
  transition: border-color 0.2s, box-shadow 0.2s;
}

.form-input:focus {
  border-color: var(--border-focus);
  box-shadow: 0 0 0 3px rgba(237,28,36,0.12);
}

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

/* ─── Buttons ─── */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  border: none;
  border-radius: 8px;
  cursor: pointer;
  font-family: 'Outfit', sans-serif;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  transition: all 0.2s var(--ease);
}

.btn-primary {
  background: var(--accent);
  color: #fff;
  padding: 13px 24px;
  font-size: 13px;
  width: 100%;
  box-shadow: 0 4px 20px var(--accent-glow);
}

.btn-primary:hover { background: var(--accent-hover); transform: translateY(-1px); box-shadow: 0 8px 28px var(--accent-glow); }
.btn-primary:active { transform: translateY(0); }

.btn-secondary {
  background: rgba(255,255,255,0.07);
  color: var(--text-dim);
  border: 1px solid var(--border);
  padding: 10px 20px;
  font-size: 12px;
}

.btn-secondary:hover { background: rgba(255,255,255,0.12); color: var(--text); }

.btn-save {
  background: linear-gradient(135deg, var(--cyan) 0%, #0099bb 100%);
  color: #000;
  padding: 12px 28px;
  font-size: 13px;
  box-shadow: 0 4px 20px var(--cyan-glow);
}

.btn-save:hover { transform: translateY(-1px); box-shadow: 0 8px 28px var(--cyan-glow); }
.btn-save:disabled { opacity: 0.5; cursor: not-allowed; transform: none; }

.btn-danger {
  background: rgba(239,68,68,0.1);
  color: #fca5a5;
  border: 1px solid rgba(239,68,68,0.25);
  padding: 9px 18px;
  font-size: 12px;
}

.btn-danger:hover { background: rgba(239,68,68,0.2); }

.btn-icon {
  width: 36px;
  height: 36px;
  border-radius: 8px;
  padding: 0;
  background: rgba(255,255,255,0.05);
  color: var(--text-dim);
  border: 1px solid var(--border);
}

.btn-icon:hover { background: rgba(255,255,255,0.1); color: var(--text); }

/* ─── Admin Layout ─── */
#adminScreen { display: none; }
#adminScreen.visible { display: flex; }

.admin-layout {
  display: flex;
  min-height: 100dvh;
  position: relative;
  z-index: 1;
}

/* ─── Sidebar ─── */
.sidebar {
  width: 240px;
  flex-shrink: 0;
  background: rgba(8, 12, 24, 0.95);
  border-right: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  padding: 24px 16px;
  position: sticky;
  top: 0;
  height: 100dvh;
  overflow-y: auto;
}

.sidebar-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 8px 4px 24px;
  border-bottom: 1px solid var(--border);
  margin-bottom: 20px;
}

.sidebar-logo img {
  height: 34px;
  width: auto;
  border-radius: 6px;
  object-fit: contain;
}

.sidebar-logo .brand {
  font-family: 'Outfit', sans-serif;
  font-size: 13px;
  font-weight: 900;
  color: var(--accent);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  line-height: 1.2;
}

.sidebar-logo .brand small {
  display: block;
  font-size: 9px;
  font-weight: 400;
  color: var(--text-muted);
  font-family: 'JetBrains Mono', monospace;
  letter-spacing: 0.1em;
}

.nav-section-label {
  font-size: 9px;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--text-muted);
  padding: 0 8px;
  margin-bottom: 6px;
}

.nav-item {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 10px 12px;
  border-radius: 8px;
  cursor: pointer;
  font-size: 13px;
  font-weight: 500;
  color: var(--text-dim);
  transition: all 0.15s;
  margin-bottom: 2px;
  border: none;
  background: none;
  width: 100%;
  text-align: left;
}

.nav-item .material-symbols-outlined { font-size: 18px; }

.nav-item:hover { background: rgba(255,255,255,0.06); color: var(--text); }

.nav-item.active {
  background: rgba(237,28,36,0.12);
  color: var(--accent);
  border-right: 2px solid var(--accent);
}

.sidebar-bottom {
  margin-top: auto;
  padding-top: 16px;
  border-top: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.sidebar-user {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 8px 4px;
}

.sidebar-user .avatar {
  width: 32px;
  height: 32px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--accent), #ff8a00);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 13px;
  font-weight: 700;
  color: #fff;
  flex-shrink: 0;
}

.sidebar-user .user-info .user-email {
  font-size: 11px;
  color: var(--text-dim);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  max-width: 150px;
}

/* ─── Main Content ─── */
.admin-main {
  flex: 1;
  min-width: 0;
  overflow-y: auto;
}

.admin-header {
  padding: 28px 36px 0;
  border-bottom: 1px solid var(--border);
  margin-bottom: 0;
  background: rgba(5, 8, 17, 0.6);
  backdrop-filter: blur(10px);
  position: sticky;
  top: 0;
  z-index: 5;
}

.admin-header-inner {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  padding-bottom: 20px;
  gap: 16px;
}

.page-title {
  font-family: 'Outfit', sans-serif;
  font-size: 26px;
  font-weight: 900;
  letter-spacing: -0.01em;
}

.page-title .accent { color: var(--accent); }

.page-subtitle {
  font-size: 13px;
  color: var(--text-muted);
  margin-top: 3px;
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-shrink: 0;
}

/* ─── Save Bar (sticky bottom) ─── */
.save-bar {
  position: fixed;
  bottom: 0;
  right: 0;
  left: 240px;
  background: rgba(8, 12, 24, 0.97);
  border-top: 1px solid var(--border);
  padding: 14px 36px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  z-index: 10;
  backdrop-filter: blur(20px);
  transform: translateY(100%);
  transition: transform 0.3s var(--ease);
}

.save-bar.visible { transform: translateY(0); }

.save-bar-text {
  font-size: 13px;
  color: var(--text-dim);
}

.save-bar-text strong { color: var(--warning); }

.save-bar-actions { display: flex; gap: 10px; }

/* ─── Tab Content ─── */
.tab-content {
  display: none;
  padding: 32px 36px 120px;
}

.tab-content.active { display: block; }

/* ─── Section Card ─── */
.section-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 28px;
  margin-bottom: 24px;
  backdrop-filter: blur(10px);
}

.section-card-title {
  font-family: 'Outfit', sans-serif;
  font-size: 15px;
  font-weight: 700;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  margin-bottom: 4px;
  display: flex;
  align-items: center;
  gap: 8px;
}

.section-card-title .material-symbols-outlined { font-size: 18px; color: var(--cyan); }

.section-card-sub {
  font-size: 12px;
  color: var(--text-muted);
  margin-bottom: 24px;
}

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

.form-grid.cols-3 { grid-template-columns: 1fr 1fr 1fr; }
.form-grid.cols-1 { grid-template-columns: 1fr; }

@media (max-width: 700px) {
  .form-grid { grid-template-columns: 1fr; }
  .form-grid.cols-3 { grid-template-columns: 1fr 1fr; }
}

/* ─── Logo Upload Area ─── */
.logo-upload-area {
  border: 2px dashed var(--border);
  border-radius: 12px;
  padding: 28px;
  text-align: center;
  cursor: pointer;
  transition: all 0.2s;
  position: relative;
  overflow: hidden;
}

.logo-upload-area:hover {
  border-color: rgba(237,28,36,0.5);
  background: rgba(237,28,36,0.04);
}

.logo-upload-area.dragover {
  border-color: var(--accent);
  background: rgba(237,28,36,0.08);
}

.logo-preview {
  max-height: 80px;
  max-width: 200px;
  object-fit: contain;
  border-radius: 8px;
  margin-bottom: 12px;
  display: none;
}

.logo-preview.visible { display: block; margin: 0 auto 12px; }

.logo-upload-icon { font-size: 32px; color: var(--text-muted); margin-bottom: 8px; }
.logo-upload-text { font-size: 13px; color: var(--text-dim); }
.logo-upload-hint { font-size: 11px; color: var(--text-muted); margin-top: 4px; }

.logo-upload-input { display: none; }

/* ─── Color Picker ─── */
.color-field {
  display: flex;
  align-items: center;
  gap: 12px;
}

.color-swatch {
  width: 44px;
  height: 44px;
  border-radius: 10px;
  border: 1px solid var(--border);
  cursor: pointer;
  flex-shrink: 0;
  position: relative;
  overflow: hidden;
}

.color-swatch input[type="color"] {
  position: absolute;
  inset: -4px;
  width: calc(100% + 8px);
  height: calc(100% + 8px);
  cursor: pointer;
  opacity: 0;
}

/* ─── Pricing Grid ─── */
.pricing-grid-wrap {
  overflow-x: auto;
  border-radius: 12px;
  border: 1px solid var(--border);
}

.pricing-table {
  width: 100%;
  border-collapse: collapse;
  font-family: 'JetBrains Mono', monospace;
  font-size: 13px;
}

.pricing-table th {
  background: rgba(255,255,255,0.04);
  padding: 10px 14px;
  text-align: center;
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--text-muted);
  border-bottom: 1px solid var(--border);
  white-space: nowrap;
}

.pricing-table th:first-child { text-align: left; }

.pricing-table td {
  padding: 6px 8px;
  border-bottom: 1px solid rgba(255,255,255,0.04);
  text-align: center;
}

.pricing-table tr:last-child td { border-bottom: none; }

.pricing-table td:first-child {
  text-align: left;
  font-size: 11px;
  color: var(--text-dim);
  padding-left: 14px;
  white-space: nowrap;
}

.price-cell {
  width: 70px;
  background: var(--bg-input);
  border: 1px solid transparent;
  border-radius: 6px;
  padding: 7px 8px;
  font-family: 'JetBrains Mono', monospace;
  font-size: 13px;
  color: var(--cyan);
  text-align: center;
  outline: none;
  transition: border-color 0.15s, box-shadow 0.15s;
}

.price-cell:focus {
  border-color: var(--cyan-glow);
  box-shadow: 0 0 0 3px rgba(0,238,252,0.1);
}

.price-cell:disabled {
  opacity: 0.35;
  color: var(--text-muted);
  background: transparent;
}

.price-cell::placeholder { color: var(--text-muted); font-size: 11px; }

/* ─── Multipliers Grid ─── */
.multiplier-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 0;
  border-bottom: 1px solid var(--border);
  gap: 12px;
}

.multiplier-item:last-child { border-bottom: none; }

.multiplier-info { flex: 1; }
.multiplier-label { font-size: 14px; font-weight: 500; }
.multiplier-desc { font-size: 12px; color: var(--text-muted); margin-top: 2px; }

.multiplier-input {
  width: 90px;
  background: var(--bg-input);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 9px 12px;
  font-family: 'JetBrains Mono', monospace;
  font-size: 14px;
  color: var(--cyan);
  text-align: center;
  outline: none;
  transition: border-color 0.15s;
}

.multiplier-input:focus {
  border-color: var(--border-focus);
  box-shadow: 0 0 0 3px rgba(237,28,36,0.12);
}

/* ─── Toast ─── */
#toast {
  position: fixed;
  bottom: 90px;
  right: 24px;
  background: rgba(16,185,129,0.15);
  border: 1px solid rgba(16,185,129,0.4);
  color: #6ee7b7;
  border-radius: 10px;
  padding: 12px 20px;
  font-size: 13px;
  font-weight: 500;
  display: flex;
  align-items: center;
  gap: 8px;
  z-index: 100;
  opacity: 0;
  transform: translateY(10px);
  transition: all 0.3s var(--ease);
  pointer-events: none;
}

#toast.error {
  background: rgba(239,68,68,0.15);
  border-color: rgba(239,68,68,0.4);
  color: #fca5a5;
}

#toast.show { opacity: 1; transform: translateY(0); }

/* ─── Loading Spinner ─── */
.spinner {
  width: 18px;
  height: 18px;
  border: 2px solid rgba(255,255,255,0.2);
  border-top-color: var(--text);
  border-radius: 50%;
  animation: spin 0.7s linear infinite;
}

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

/* ─── Responsive (mobile) ─── */
@media (max-width: 768px) {
  .sidebar {
    width: 60px;
    padding: 16px 8px;
  }

  .sidebar-logo .brand,
  .sidebar-logo small,
  .nav-item span:not(.material-symbols-outlined),
  .sidebar-user .user-info,
  .nav-section-label { display: none; }

  .nav-item { padding: 10px; justify-content: center; }
  .sidebar-logo { justify-content: center; }
  .sidebar-logo img { height: 28px; }

  .admin-main { overflow-x: hidden; }
  .admin-header { padding: 20px 20px 0; }
  .admin-header-inner { padding-bottom: 16px; }
  .tab-content { padding: 24px 20px 120px; }
  .page-title { font-size: 20px; }
  .section-card { padding: 20px; }

  .save-bar { left: 60px; padding: 12px 20px; }
}