/* ============================================================
   MyNotes — Liquid Glass Design System
   Inspired by Apple WWDC 2025, visionOS, macOS Tahoe, Arc, Linear
   ============================================================ */

/* ------------------------------------------------------------
   DESIGN TOKENS — CSS Custom Properties
   ------------------------------------------------------------ */
:root {
  /* Background Palette */
  --bg-primary: #F5F7FA;
  --bg-secondary: #EEF2F7;
  --bg-tertiary: #E9EDF3;
  --bg-body-gradient: linear-gradient(145deg, #F5F7FA 0%, #EEF2F7 50%, #E9EDF3 100%);

  /* Text Palette */
  --text-primary: #111827;
  --text-secondary: #6B7280;
  --text-muted: #9CA3AF;

  /* Accent */
  --color-primary: #5B8CFF;
  --color-primary-hover: #4A7AEE;
  --color-primary-light: rgba(91, 140, 255, 0.12);
  --color-primary-glow: rgba(91, 140, 255, 0.25);
  --color-secondary: #A78BFA;
  --color-secondary-light: rgba(167, 139, 250, 0.12);
  --color-accent: #34D399;
  --color-accent-light: rgba(52, 211, 153, 0.12);
  --color-danger: #EF4444;
  --color-danger-hover: #DC2626;
  --color-danger-light: rgba(239, 68, 68, 0.1);

  /* Glass Morphism Tokens */
  --glass-bg: rgba(255, 255, 255, 0.35);
  --glass-bg-hover: rgba(255, 255, 255, 0.5);
  --glass-bg-active: rgba(255, 255, 255, 0.6);
  --glass-border: 1px solid rgba(255, 255, 255, 0.4);
  --glass-border-subtle: 1px solid rgba(255, 255, 255, 0.25);
  --glass-shadow: 0 12px 40px rgba(0, 0, 0, 0.08);
  --glass-shadow-hover: 0 20px 60px rgba(0, 0, 0, 0.12);
  --glass-shadow-sm: 0 4px 16px rgba(0, 0, 0, 0.05);
  --glass-blur: blur(30px);
  --glass-blur-light: blur(16px);

  /* Layout */
  --sidebar-width: 260px;
  --radius-xs: 8px;
  --radius-sm: 12px;
  --radius-md: 16px;
  --radius-lg: 20px;
  --radius-xl: 24px;
  --content-max-width: 1500px;

  /* Animation */
  --transition-fast: 150ms ease-out;
  --transition-normal: 250ms ease-out;
  --transition-slow: 400ms cubic-bezier(0.16, 1, 0.3, 1);

  /* Input */
  --input-bg: rgba(255, 255, 255, 0.5);
  --input-border: rgba(255, 255, 255, 0.4);

  /* Elevation */
  --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.04);
  --shadow-md: 0 8px 24px rgba(0, 0, 0, 0.06);
  --shadow-lg: 0 16px 48px rgba(0, 0, 0, 0.1);

  /* Ambient orb colors */
  --orb-1: rgba(91, 140, 255, 0.15);
  --orb-2: rgba(167, 139, 250, 0.12);
  --orb-3: rgba(52, 211, 153, 0.1);
}

/* Dark Theme */
html[data-theme="dark"] {
  --bg-primary: #0E1013;
  --bg-secondary: #161A20;
  --bg-tertiary: #20252D;
  --bg-body-gradient: linear-gradient(145deg, #0E1013 0%, #161A20 50%, #1A1E26 100%);

  --text-primary: #F9FAFB;
  --text-secondary: #9CA3AF;
  --text-muted: #6B7280;

  --color-primary: #79B8FF;
  --color-primary-hover: #5B8CFF;
  --color-primary-light: rgba(121, 184, 255, 0.12);
  --color-primary-glow: rgba(121, 184, 255, 0.2);
  --color-secondary: #C4B5FD;
  --color-secondary-light: rgba(196, 181, 253, 0.1);
  --color-accent: #6EE7B7;
  --color-accent-light: rgba(110, 231, 183, 0.1);
  --color-danger: #FCA5A5;
  --color-danger-light: rgba(252, 165, 165, 0.1);

  --glass-bg: rgba(255, 255, 255, 0.06);
  --glass-bg-hover: rgba(255, 255, 255, 0.1);
  --glass-bg-active: rgba(255, 255, 255, 0.14);
  --glass-border: 1px solid rgba(255, 255, 255, 0.08);
  --glass-border-subtle: 1px solid rgba(255, 255, 255, 0.05);
  --glass-shadow: 0 12px 40px rgba(0, 0, 0, 0.3);
  --glass-shadow-hover: 0 20px 60px rgba(0, 0, 0, 0.4);
  --glass-shadow-sm: 0 4px 16px rgba(0, 0, 0, 0.2);

  --input-bg: rgba(255, 255, 255, 0.06);
  --input-border: rgba(255, 255, 255, 0.08);

  --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.2);
  --shadow-md: 0 8px 24px rgba(0, 0, 0, 0.3);
  --shadow-lg: 0 16px 48px rgba(0, 0, 0, 0.4);

  --orb-1: rgba(91, 140, 255, 0.08);
  --orb-2: rgba(167, 139, 250, 0.06);
  --orb-3: rgba(52, 211, 153, 0.05);
}

/* ------------------------------------------------------------
   GLOBAL RESET & BASE
   ------------------------------------------------------------ */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, "SF Pro Display", "Segoe UI", Roboto, sans-serif;
  background: var(--bg-body-gradient);
  background-attachment: fixed;
  color: var(--text-primary);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  line-height: 1.6;
  overflow-x: hidden;
  height: 100vh;
  font-size: 16px;
}

h1, h2, h3, h4, h5, h6 {
  font-family: 'Outfit', -apple-system, sans-serif;
  font-weight: 700;
  color: var(--text-primary);
  letter-spacing: -0.02em;
}

a {
  color: var(--color-primary);
  text-decoration: none;
  transition: color var(--transition-fast);
}

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

button, input, select, textarea {
  font-family: inherit;
  font-size: inherit;
  color: inherit;
  background: none;
  border: none;
  outline: none;
}

/* GPU Acceleration Hints */
.sidebar,
.note-card,
.modal-card,
.login-card,
.stat-card {
  will-change: transform;
  transform: translateZ(0);
}

/* ------------------------------------------------------------
   SCROLLBARS — Glass Style
   ------------------------------------------------------------ */
::-webkit-scrollbar {
  width: 6px;
  height: 6px;
}

::-webkit-scrollbar-track {
  background: transparent;
}

::-webkit-scrollbar-thumb {
  background: rgba(0, 0, 0, 0.12);
  border-radius: 100px;
}

::-webkit-scrollbar-thumb:hover {
  background: rgba(0, 0, 0, 0.2);
}

html[data-theme="dark"] ::-webkit-scrollbar-thumb {
  background: rgba(255, 255, 255, 0.1);
}

html[data-theme="dark"] ::-webkit-scrollbar-thumb:hover {
  background: rgba(255, 255, 255, 0.18);
}

/* ------------------------------------------------------------
   ANIMATIONS
   ------------------------------------------------------------ */
@keyframes fadeIn {
  from { opacity: 0; }
  to { opacity: 1; }
}

@keyframes slideUp {
  from { opacity: 0; transform: translateY(20px) scale(0.98); }
  to { opacity: 1; transform: translateY(0) scale(1); }
}

@keyframes slideInRight {
  from { transform: translateX(100%); }
  to { transform: translateX(0); }
}

@keyframes floatIn {
  from { opacity: 0; transform: translateY(30px) scale(0.95); }
  to { opacity: 1; transform: translateY(0) scale(1); }
}

@keyframes glassShimmer {
  0% { background-position: -200% 0; }
  100% { background-position: 200% 0; }
}

@keyframes spin {
  0% { transform: rotate(0deg); }
  100% { transform: rotate(360deg); }
}

@keyframes pulseGlow {
  0%, 100% { box-shadow: 0 0 0 0 var(--color-primary-glow); }
  50% { box-shadow: 0 0 20px 4px var(--color-primary-glow); }
}

@keyframes orbFloat {
  0%, 100% { transform: translate(0, 0) scale(1); }
  33% { transform: translate(30px, -20px) scale(1.05); }
  66% { transform: translate(-20px, 15px) scale(0.95); }
}

.animate-fade-in {
  animation: fadeIn 0.4s cubic-bezier(0.16, 1, 0.3, 1) forwards;
}

.animate-slide-up {
  animation: slideUp 0.5s cubic-bezier(0.16, 1, 0.3, 1) forwards;
}

.animate-spin {
  animation: spin 1s linear infinite;
}

/* Reduced Motion */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}

/* ------------------------------------------------------------
   UTILITY CLASSES
   ------------------------------------------------------------ */
.hidden {
  display: none !important;
}

.flex-grow {
  flex-grow: 1;
}

.text-center {
  text-align: center;
}

.margin-top-lg {
  margin-top: 28px;
}

/* ------------------------------------------------------------
   GLASS PANEL MIXIN (via class)
   ------------------------------------------------------------ */
.glass-panel {
  background: var(--glass-bg);
  backdrop-filter: var(--glass-blur);
  -webkit-backdrop-filter: var(--glass-blur);
  border: var(--glass-border);
  box-shadow: var(--glass-shadow);
  border-radius: var(--radius-xl);
}

/* Ambient Background Orbs */
.ambient-orb {
  position: fixed;
  border-radius: 50%;
  filter: blur(80px);
  pointer-events: none;
  z-index: 0;
  animation: orbFloat 20s ease-in-out infinite;
}

.ambient-orb-1 {
  width: 400px;
  height: 400px;
  background: var(--orb-1);
  top: -5%;
  right: 15%;
  animation-delay: 0s;
}

.ambient-orb-2 {
  width: 350px;
  height: 350px;
  background: var(--orb-2);
  bottom: 10%;
  left: -5%;
  animation-delay: -7s;
}

.ambient-orb-3 {
  width: 300px;
  height: 300px;
  background: var(--orb-3);
  top: 50%;
  right: -8%;
  animation-delay: -14s;
}

/* Glass Shimmer Overlay */
.glass-shimmer {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  border-radius: inherit;
  background: linear-gradient(
    105deg,
    transparent 40%,
    rgba(255, 255, 255, 0.08) 45%,
    rgba(255, 255, 255, 0.15) 50%,
    rgba(255, 255, 255, 0.08) 55%,
    transparent 60%
  );
  background-size: 200% 100%;
  animation: glassShimmer 8s ease-in-out infinite;
  pointer-events: none;
  z-index: 1;
}

html[data-theme="dark"] .glass-shimmer {
  background: linear-gradient(
    105deg,
    transparent 40%,
    rgba(255, 255, 255, 0.03) 45%,
    rgba(255, 255, 255, 0.06) 50%,
    rgba(255, 255, 255, 0.03) 55%,
    transparent 60%
  );
  background-size: 200% 100%;
}

/* ============================================================
   LOGIN PAGE
   ============================================================ */
.login-body {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  min-height: 100vh;
  background: var(--bg-body-gradient);
  background-attachment: fixed;
  position: relative;
  padding: 24px;
  overflow: hidden;
}

/* Ambient orbs on login */
.login-body::before {
  content: '';
  position: absolute;
  width: 420px;
  height: 420px;
  border-radius: 50%;
  background: var(--orb-1);
  filter: blur(100px);
  z-index: 0;
  top: 10%;
  left: 15%;
  animation: orbFloat 25s ease-in-out infinite;
}

.login-body::after {
  content: '';
  position: absolute;
  width: 350px;
  height: 350px;
  border-radius: 50%;
  background: var(--orb-2);
  filter: blur(90px);
  z-index: 0;
  bottom: 5%;
  right: 10%;
  animation: orbFloat 20s ease-in-out infinite reverse;
}

.theme-toggle-container {
  position: absolute;
  top: 28px;
  right: 28px;
  z-index: 10;
}

.login-container {
  width: 100%;
  max-width: 440px;
  z-index: 2;
}

.login-card {
  background: var(--glass-bg);
  backdrop-filter: var(--glass-blur);
  -webkit-backdrop-filter: var(--glass-blur);
  border: var(--glass-border);
  box-shadow: var(--glass-shadow);
  padding: 48px 40px;
  border-radius: var(--radius-xl);
  position: relative;
  overflow: hidden;
}

.brand-header {
  text-align: center;
  margin-bottom: 36px;
}

.logo-wrapper {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 68px;
  height: 68px;
  border-radius: var(--radius-lg);
  background: linear-gradient(135deg, var(--color-primary), var(--color-secondary));
  color: #FFFFFF;
  margin-bottom: 20px;
  box-shadow: 0 8px 24px rgba(91, 140, 255, 0.3);
  position: relative;
}

.brand-logo-icon {
  width: 34px;
  height: 34px;
}

#brand-title {
  font-size: 2.1rem;
  font-weight: 800;
  letter-spacing: -0.03em;
  margin-bottom: 6px;
  background: linear-gradient(135deg, var(--text-primary) 0%, var(--text-secondary) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

#brand-subtitle {
  font-size: 0.88rem;
  color: var(--text-secondary);
  font-weight: 400;
  letter-spacing: 0.02em;
}

/* Form */
.form-group {
  margin-bottom: 22px;
}

.form-group label {
  display: block;
  font-size: 0.82rem;
  font-weight: 600;
  margin-bottom: 8px;
  color: var(--text-secondary);
  letter-spacing: 0.01em;
}

.input-wrapper {
  position: relative;
  display: flex;
  align-items: center;
}

.input-icon {
  position: absolute;
  left: 16px;
  width: 18px;
  height: 18px;
  color: var(--text-muted);
  pointer-events: none;
}

.input-wrapper input {
  width: 100%;
  padding: 14px 16px 14px 46px;
  background: var(--input-bg);
  border: var(--glass-border-subtle);
  border-radius: var(--radius-sm);
  color: var(--text-primary);
  font-size: 0.95rem;
  transition: all var(--transition-normal);
  backdrop-filter: var(--glass-blur-light);
  -webkit-backdrop-filter: var(--glass-blur-light);
}

.input-wrapper input:focus {
  border-color: var(--color-primary);
  box-shadow: 0 0 0 4px var(--color-primary-light), var(--glass-shadow-sm);
  background: var(--glass-bg-hover);
}

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

.input-action-btn {
  position: absolute;
  right: 14px;
  color: var(--text-muted);
  width: 24px;
  height: 24px;
  cursor: pointer;
  transition: color var(--transition-fast);
}

.input-action-btn:hover {
  color: var(--text-primary);
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 12px 22px;
  border-radius: var(--radius-sm);
  font-weight: 600;
  font-size: 0.92rem;
  cursor: pointer;
  transition: all var(--transition-normal);
  gap: 8px;
  position: relative;
  overflow: hidden;
  letter-spacing: 0.01em;
}

.btn:active {
  transform: scale(0.96);
  transition-duration: 80ms;
}

.btn-primary {
  background: linear-gradient(135deg, var(--color-primary), #4A7AEE);
  color: #FFFFFF;
  box-shadow: 0 4px 16px rgba(91, 140, 255, 0.3);
}

.btn-primary:hover {
  box-shadow: 0 8px 28px rgba(91, 140, 255, 0.4);
  transform: translateY(-1px);
}

.btn-primary:active {
  transform: scale(0.96) translateY(0);
}

.btn-outline {
  background: var(--glass-bg);
  backdrop-filter: var(--glass-blur-light);
  -webkit-backdrop-filter: var(--glass-blur-light);
  border: var(--glass-border-subtle);
  color: var(--text-primary);
}

.btn-outline:hover {
  background: var(--glass-bg-hover);
  box-shadow: var(--glass-shadow-sm);
}

.btn-text {
  color: var(--color-primary);
  font-size: 0.88rem;
  padding: 6px 10px;
  font-weight: 600;
}

.btn-text:hover {
  background: var(--color-primary-light);
  border-radius: var(--radius-xs);
}

.btn-sm {
  padding: 7px 14px;
  font-size: 0.82rem;
}

.btn-block {
  width: 100%;
}

.btn-arrow {
  width: 18px;
  height: 18px;
  transition: transform var(--transition-normal);
}

.btn-primary:hover .btn-arrow {
  transform: translateX(4px);
}

/* Alert Box */
.alert-box {
  display: flex;
  align-items: center;
  padding: 14px 16px;
  border-radius: var(--radius-sm);
  margin-top: 18px;
  font-size: 0.85rem;
  gap: 10px;
  backdrop-filter: var(--glass-blur-light);
  -webkit-backdrop-filter: var(--glass-blur-light);
}

.alert-box.error {
  background: var(--color-danger-light);
  border: 1px solid rgba(239, 68, 68, 0.2);
  color: var(--color-danger);
}

.alert-icon {
  width: 16px;
  height: 16px;
  flex-shrink: 0;
}

/* Login Footer */
.login-footer {
  margin-top: 44px;
  font-size: 0.8rem;
  color: var(--text-muted);
  z-index: 2;
  letter-spacing: 0.01em;
}

.login-footer a {
  font-weight: 600;
}

/* Icon Buttons */
.icon-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 38px;
  height: 38px;
  border-radius: var(--radius-sm);
  cursor: pointer;
  color: var(--text-secondary);
  transition: all var(--transition-normal);
}

.icon-btn:hover {
  background: var(--glass-bg-hover);
  color: var(--text-primary);
  box-shadow: var(--glass-shadow-sm);
}

.icon-btn:active {
  transform: scale(0.92);
  transition-duration: 80ms;
}

.icon-btn.active {
  background: var(--color-primary-light);
  color: var(--color-primary);
}

.icon-btn.primary {
  background: linear-gradient(135deg, var(--color-primary), #4A7AEE);
  color: #FFFFFF;
  box-shadow: 0 4px 12px rgba(91, 140, 255, 0.25);
}

.icon-btn.primary:hover {
  box-shadow: 0 6px 20px rgba(91, 140, 255, 0.35);
  transform: translateY(-1px);
}

.icon-btn.small {
  width: 24px;
  height: 24px;
  border-radius: var(--radius-xs);
}

/* Theme Toggle Icons */
.theme-toggle .light-icon {
  display: none;
}

html[data-theme="dark"] .theme-toggle .dark-icon {
  display: none;
}

html[data-theme="dark"] .theme-toggle .light-icon {
  display: block;
}

/* ============================================================
   DASHBOARD LAYOUT
   ============================================================ */
.dashboard-body {
  height: 100vh;
  overflow: hidden;
  position: relative;
}

.app-layout {
  display: flex;
  height: 100vh;
  width: 100vw;
  overflow: hidden;
  position: relative;
}

/* ---- SIDEBAR ---- */
.sidebar {
  width: var(--sidebar-width);
  background: var(--glass-bg);
  backdrop-filter: var(--glass-blur);
  -webkit-backdrop-filter: var(--glass-blur);
  border-right: var(--glass-border-subtle);
  display: flex;
  flex-direction: column;
  flex-shrink: 0;
  transition: transform var(--transition-normal);
  z-index: 100;
  position: relative;
}

.sidebar-header {
  padding: 22px 20px;
  border-bottom: var(--glass-border-subtle);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

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

.brand-icon {
  width: 28px;
  height: 28px;
  color: var(--color-primary);
  filter: drop-shadow(0 2px 4px rgba(91, 140, 255, 0.3));
}

.brand-title {
  font-size: 1.15rem;
  font-weight: 800;
  letter-spacing: -0.03em;
  line-height: 1.1;
}

.brand-subtitle {
  font-size: 0.72rem;
  color: var(--text-muted);
  font-weight: 500;
  letter-spacing: 0.02em;
}

.sidebar-nav {
  flex-grow: 1;
  padding: 16px 12px;
  overflow-y: auto;
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.nav-section {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.section-title {
  font-size: 0.7rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--text-muted);
  padding: 6px 12px 10px 12px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.section-title .icon-btn.small {
  width: 22px;
  height: 22px;
  border-radius: var(--radius-xs);
}

.nav-item {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 10px 14px;
  border-radius: var(--radius-sm);
  font-size: 0.88rem;
  font-weight: 500;
  color: var(--text-secondary);
  cursor: pointer;
  width: 100%;
  text-align: left;
  transition: all var(--transition-normal);
  position: relative;
}

.nav-item i, .nav-item svg {
  width: 18px;
  height: 18px;
  flex-shrink: 0;
  transition: color var(--transition-fast);
}

.nav-item:hover {
  background: var(--glass-bg-hover);
  color: var(--text-primary);
  box-shadow: var(--glass-shadow-sm);
}

.nav-item.active {
  background: var(--color-primary-light);
  color: var(--color-primary);
  font-weight: 600;
  box-shadow: inset 3px 0 0 var(--color-primary);
}

.categories-list {
  display: flex;
  flex-direction: column;
  gap: 1px;
}

.category-nav-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 8px 14px;
  border-radius: var(--radius-xs);
  font-size: 0.84rem;
  font-weight: 500;
  color: var(--text-secondary);
  cursor: pointer;
  transition: all var(--transition-normal);
}

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

.category-nav-item.active {
  background: var(--color-primary-light);
  color: var(--color-primary);
  font-weight: 600;
}

.category-nav-left {
  display: flex;
  align-items: center;
  gap: 8px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.category-nav-left i {
  width: 16px;
  height: 16px;
  color: var(--text-muted);
}

.category-count {
  font-size: 0.72rem;
  color: var(--text-muted);
  background: var(--glass-bg);
  padding: 1px 8px;
  border-radius: 100px;
  font-weight: 600;
}

/* Sidebar Footer */
.sidebar-footer {
  padding: 16px 12px;
  border-top: var(--glass-border-subtle);
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.admin-profile {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 10px 14px;
  border-radius: var(--radius-sm);
  background: var(--glass-bg);
  backdrop-filter: var(--glass-blur-light);
  -webkit-backdrop-filter: var(--glass-blur-light);
  border: var(--glass-border-subtle);
}

.admin-avatar {
  width: 34px;
  height: 34px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--color-primary), var(--color-secondary));
  color: #FFFFFF;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 0.88rem;
  box-shadow: 0 4px 12px rgba(91, 140, 255, 0.2);
}

.admin-info {
  flex-grow: 1;
  overflow: hidden;
}

.admin-name {
  display: block;
  font-size: 0.84rem;
  font-weight: 600;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.admin-role {
  display: block;
  font-size: 0.72rem;
  color: var(--text-muted);
}

.icon-btn.logout {
  width: 30px;
  height: 30px;
  border-radius: var(--radius-xs);
  color: var(--color-danger);
}

.icon-btn.logout:hover {
  background: var(--color-danger-light);
}

/* ---- MAIN CONTENT ---- */
.main-content {
  flex-grow: 1;
  display: flex;
  flex-direction: column;
  height: 100vh;
  overflow: hidden;
  position: relative;
}

.mobile-header {
  display: none;
  height: 58px;
  background: var(--glass-bg);
  backdrop-filter: var(--glass-blur);
  -webkit-backdrop-filter: var(--glass-blur);
  border-bottom: var(--glass-border-subtle);
  align-items: center;
  padding: 0 18px;
  justify-content: space-between;
  flex-shrink: 0;
  z-index: 10;
}

.mobile-title {
  font-size: 1.08rem;
  font-weight: 800;
  letter-spacing: -0.02em;
}

.panes-container {
  display: flex;
  flex-grow: 1;
  height: calc(100vh - 58px);
  overflow: hidden;
}

/* Standard Pane */
.pane {
  display: flex;
  flex-direction: column;
  height: 100%;
  overflow: hidden;
}

.pane-header {
  padding: 28px 28px 24px 28px;
  border-bottom: var(--glass-border-subtle);
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-shrink: 0;
  background: var(--glass-bg);
  backdrop-filter: var(--glass-blur-light);
  -webkit-backdrop-filter: var(--glass-blur-light);
}

.pane-header.sticky {
  position: sticky;
  top: 0;
  z-index: 5;
}

.pane-title {
  font-size: 1.6rem;
  font-weight: 800;
  letter-spacing: -0.03em;
}

.pane-subtitle {
  font-size: 0.84rem;
  color: var(--text-muted);
  margin-top: 2px;
}

.pane-body {
  flex-grow: 1;
  padding: 28px;
  overflow-y: auto;
}

.pane-body.scrollable {
  overflow-y: auto;
}

.pane-body.no-padding {
  padding: 0;
}

/* ============================================================
   PANE A: DASHBOARD OVERVIEW
   ============================================================ */
.dashboard-overview-pane {
  flex-grow: 1;
  background: transparent;
}

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

.stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 18px;
}

.stat-card {
  background: var(--glass-bg);
  backdrop-filter: var(--glass-blur);
  -webkit-backdrop-filter: var(--glass-blur);
  border: var(--glass-border);
  border-radius: var(--radius-lg);
  padding: 22px;
  display: flex;
  align-items: center;
  gap: 16px;
  box-shadow: var(--glass-shadow-sm);
  transition: all var(--transition-normal);
  position: relative;
  overflow: hidden;
}

.stat-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--glass-shadow);
  background: var(--glass-bg-hover);
}

.stat-icon-wrapper {
  width: 48px;
  height: 48px;
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  backdrop-filter: var(--glass-blur-light);
  -webkit-backdrop-filter: var(--glass-blur-light);
}

.stat-card.primary-theme .stat-icon-wrapper {
  background: var(--color-primary-light);
  color: var(--color-primary);
}

.stat-card.secondary-theme .stat-icon-wrapper {
  background: var(--color-secondary-light);
  color: var(--color-secondary);
}

.stat-card.accent-theme .stat-icon-wrapper {
  background: var(--color-accent-light);
  color: var(--color-accent);
}

.stat-card.info-theme .stat-icon-wrapper {
  background: var(--glass-bg);
  color: var(--text-primary);
}

.stat-content {
  overflow: hidden;
}

.stat-label {
  display: block;
  font-size: 0.76rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--text-muted);
  margin-bottom: 4px;
}

.stat-value {
  font-size: 1.8rem;
  font-weight: 800;
  line-height: 1.1;
  letter-spacing: -0.02em;
}

.stat-value-text {
  font-size: 0.95rem;
  font-weight: 700;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  line-height: 1.3;
}

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

/* Recent Notes Widget */
.recent-notes-widget {
  background: var(--glass-bg);
  backdrop-filter: var(--glass-blur);
  -webkit-backdrop-filter: var(--glass-blur);
  border: var(--glass-border);
  border-radius: var(--radius-xl);
  padding: 26px;
  box-shadow: var(--glass-shadow-sm);
}

.widget-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 18px;
}

.widget-header h3 {
  font-size: 1.08rem;
  font-weight: 700;
}

.recent-notes-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 16px;
}

/* Keyboard Shortcuts */
.keyboard-shortcuts-card {
  background: var(--glass-bg);
  backdrop-filter: var(--glass-blur);
  -webkit-backdrop-filter: var(--glass-blur);
  border: var(--glass-border);
  border-radius: var(--radius-xl);
  padding: 26px;
  box-shadow: var(--glass-shadow-sm);
}

.shortcuts-header {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 18px;
  padding-bottom: 12px;
  border-bottom: var(--glass-border-subtle);
}

.shortcuts-icon {
  width: 20px;
  height: 20px;
  color: var(--color-primary);
}

.shortcuts-header h3 {
  font-size: 1rem;
  font-weight: 700;
}

.shortcuts-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
  gap: 12px;
}

.shortcut-item {
  font-size: 0.84rem;
  color: var(--text-secondary);
  display: flex;
  align-items: center;
  gap: 4px;
}

.shortcut-item kbd {
  background: var(--glass-bg);
  backdrop-filter: var(--glass-blur-light);
  -webkit-backdrop-filter: var(--glass-blur-light);
  border: var(--glass-border-subtle);
  border-radius: var(--radius-xs);
  padding: 3px 8px;
  font-size: 0.72rem;
  font-weight: 600;
  box-shadow: 0 2px 4px rgba(0, 0, 0, 0.06);
  color: var(--text-primary);
}

.shortcut-item span {
  margin-left: 6px;
}

/* ============================================================
   PANE B: NOTES LIST
   ============================================================ */
.notes-list-pane {
  width: 380px;
  border-right: var(--glass-border-subtle);
  flex-shrink: 0;
  background: var(--glass-bg);
  backdrop-filter: var(--glass-blur-light);
  -webkit-backdrop-filter: var(--glass-blur-light);
}

.search-sort-bar {
  display: flex;
  flex-direction: column;
  gap: 12px;
  width: 100%;
}

.search-input-wrapper {
  position: relative;
  display: flex;
  align-items: center;
  width: 100%;
}

.search-icon {
  position: absolute;
  left: 14px;
  width: 16px;
  height: 16px;
  color: var(--text-muted);
  transition: color var(--transition-fast);
}

.search-input-wrapper input {
  width: 100%;
  padding: 10px 14px 10px 40px;
  background: var(--glass-bg);
  border: var(--glass-border-subtle);
  border-radius: var(--radius-sm);
  font-size: 0.88rem;
  color: var(--text-primary);
  transition: all var(--transition-normal);
  backdrop-filter: var(--glass-blur-light);
  -webkit-backdrop-filter: var(--glass-blur-light);
}

.search-input-wrapper input:focus {
  background: var(--glass-bg-hover);
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px var(--color-primary-light), var(--glass-shadow-sm);
}

.search-input-wrapper input:focus ~ .search-icon,
.search-input-wrapper input:focus + .search-icon {
  color: var(--color-primary);
}

#search-clear-btn {
  position: absolute;
  right: 10px;
  width: 22px;
  height: 22px;
}

.filters-action-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
}

.select-wrapper {
  position: relative;
  display: flex;
  align-items: center;
  background: var(--glass-bg);
  border-radius: var(--radius-xs);
  padding: 5px 26px 5px 12px;
  border: var(--glass-border-subtle);
  transition: all var(--transition-fast);
  cursor: pointer;
  backdrop-filter: var(--glass-blur-light);
  -webkit-backdrop-filter: var(--glass-blur-light);
}

.select-wrapper:hover {
  background: var(--glass-bg-hover);
}

.select-wrapper select {
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--text-secondary);
  cursor: pointer;
  -webkit-appearance: none;
  -moz-appearance: none;
  appearance: none;
}

.select-icon {
  position: absolute;
  right: 8px;
  width: 12px;
  height: 12px;
  color: var(--text-muted);
  pointer-events: none;
}

.view-toggle {
  display: flex;
  background: var(--glass-bg);
  padding: 3px;
  border-radius: var(--radius-xs);
  border: var(--glass-border-subtle);
}

.view-toggle .icon-btn {
  width: 28px;
  height: 28px;
  border-radius: var(--radius-xs);
}

.pane-title-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-top: 16px;
  width: 100%;
}

.pane-list-title {
  font-size: 1.12rem;
  font-weight: 700;
}

/* Notes Grid */
.notes-grid {
  display: grid;
  grid-template-columns: 1fr;
  padding: 14px;
  gap: 10px;
}

.notes-grid.grid-layout {
  display: block;
  column-count: 2;
  column-gap: 12px;
  padding: 14px;
}

/* Note Card — Floating Glass */
.note-card {
  background: var(--glass-bg);
  backdrop-filter: var(--glass-blur-light);
  -webkit-backdrop-filter: var(--glass-blur-light);
  border: var(--glass-border);
  border-radius: var(--radius-md);
  padding: 16px;
  cursor: pointer;
  display: flex;
  flex-direction: column;
  position: relative;
  transition: all var(--transition-normal);
  overflow: hidden;
}

.notes-grid.grid-layout .note-card {
  display: inline-flex;
  width: 100%;
  break-inside: avoid;
  margin-bottom: 12px;
}

.note-card::after {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.4), transparent);
  opacity: 0;
  transition: opacity var(--transition-normal);
}

.note-card:hover {
  transform: translateY(-4px) scale(1.01);
  box-shadow: var(--glass-shadow-hover);
  background: var(--glass-bg-hover);
}

.note-card:hover::after {
  opacity: 1;
}

.note-card.active {
  background: var(--color-primary-light);
  border-color: rgba(91, 140, 255, 0.3);
  box-shadow: 0 0 0 1px rgba(91, 140, 255, 0.15), var(--glass-shadow);
}

.note-card-title-row {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  margin-bottom: 8px;
  gap: 8px;
}

.note-card-title {
  font-size: 0.92rem;
  font-weight: 700;
  line-height: 1.3;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  flex-grow: 1;
  letter-spacing: -0.01em;
}

.note-card-icons {
  display: flex;
  align-items: center;
  gap: 4px;
  flex-shrink: 0;
  transition: opacity var(--transition-normal);
}

.note-card:hover .note-card-icons {
  opacity: 0;
}

.note-card-icons i, .note-card-icons svg {
  width: 14px;
  height: 14px;
}

.note-card-icons .pin-icon { color: var(--color-primary); }
.note-card-icons .fav-icon { color: var(--color-secondary); }

.notes-grid:not(.grid-layout) .note-card-preview {
  font-size: 0.8rem;
  color: var(--text-secondary);
  line-height: 1.5;
  margin-bottom: 12px;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
  text-overflow: ellipsis;
  height: 36px;
}

.notes-grid.grid-layout .note-card-preview {
  font-size: 0.8rem;
  color: var(--text-secondary);
  line-height: 1.5;
  margin-bottom: 12px;
  display: block;
  height: auto;
  max-height: 110px;
  overflow: hidden;
  text-overflow: ellipsis;
}

.note-card-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-top: auto;
  font-size: 0.72rem;
  gap: 8px;
}

.note-card-date {
  color: var(--text-muted);
  font-weight: 500;
}

/* Card Hover Actions overlay */
.note-card-hover-actions {
  position: absolute;
  top: 10px;
  right: 10px;
  display: flex;
  align-items: center;
  gap: 4px;
  opacity: 0;
  transform: translateY(-4px);
  transition: all var(--transition-normal);
  background: var(--glass-bg-hover);
  backdrop-filter: var(--glass-blur-light);
  -webkit-backdrop-filter: var(--glass-blur-light);
  padding: 4px;
  border-radius: var(--radius-xs);
  border: var(--glass-border-subtle);
  z-index: 3;
}

.note-card:hover .note-card-hover-actions {
  opacity: 1;
  transform: translateY(0);
}

.card-action-btn {
  width: 26px;
  height: 26px;
  border-radius: 6px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-secondary);
  transition: all var(--transition-fast);
  cursor: pointer;
}

.card-action-btn:hover {
  background: rgba(255, 255, 255, 0.25);
  color: var(--text-primary);
}

html[data-theme="dark"] .card-action-btn:hover {
  background: rgba(255, 255, 255, 0.12);
}

.card-action-btn i, .card-action-btn svg {
  width: 13px;
  height: 13px;
}

.card-action-btn[data-action="pin"].active {
  color: var(--color-primary);
  background: var(--color-primary-light);
}

.card-action-btn[data-action="favorite"].active {
  color: var(--color-secondary);
  background: var(--color-secondary-light);
}

.card-action-btn[data-action="archive"].active {
  color: var(--color-accent);
  background: var(--color-accent-light);
}

.card-action-btn.danger:hover {
  color: var(--color-danger);
  background: var(--color-danger-light);
}

.note-card-badges {
  display: flex;
  align-items: center;
  gap: 4px;
  overflow: hidden;
}

.badge {
  font-size: 0.68rem;
  font-weight: 600;
  padding: 3px 8px;
  border-radius: 100px;
  white-space: nowrap;
  text-overflow: ellipsis;
  overflow: hidden;
  max-width: 80px;
}

.badge.category-badge {
  background: var(--glass-bg);
  color: var(--text-secondary);
  border: var(--glass-border-subtle);
}

.badge.tag-badge {
  background: var(--color-primary-light);
  color: var(--color-primary);
}

/* Empty State */
.empty-state {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 48px 28px;
  text-align: center;
  height: 100%;
}

.empty-icon-wrapper {
  width: 64px;
  height: 64px;
  border-radius: 50%;
  background: var(--glass-bg);
  backdrop-filter: var(--glass-blur-light);
  -webkit-backdrop-filter: var(--glass-blur-light);
  border: var(--glass-border-subtle);
  color: var(--text-muted);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 18px;
}

.empty-icon-wrapper i {
  width: 26px;
  height: 26px;
}

.empty-state h3 {
  font-size: 1.05rem;
  margin-bottom: 8px;
}

.empty-state p {
  font-size: 0.84rem;
  color: var(--text-secondary);
  max-width: 260px;
  margin-bottom: 18px;
  line-height: 1.5;
}

/* ============================================================
   PANE C: EDITOR WORKSPACE
   ============================================================ */
.editor-pane {
  flex-grow: 1;
  position: relative;
  background: transparent;
}

.editor-mobile-bar {
  display: none;
  background: var(--glass-bg);
  backdrop-filter: var(--glass-blur-light);
  -webkit-backdrop-filter: var(--glass-blur-light);
  padding: 8px 18px;
  border-bottom: var(--glass-border-subtle);
}

.editor-empty-state {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  height: 100%;
  text-align: center;
  padding: 48px;
}

.editor-active-container {
  display: flex;
  flex-direction: column;
  height: 100%;
  width: 100%;
}

.editor-toolbar {
  padding: 14px 28px;
  border-bottom: var(--glass-border-subtle);
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-shrink: 0;
  background: var(--glass-bg);
  backdrop-filter: var(--glass-blur-light);
  -webkit-backdrop-filter: var(--glass-blur-light);
}

.auto-save-status {
  font-size: 0.8rem;
  color: var(--text-muted);
}

#save-status-indicator {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  transition: color var(--transition-fast);
}

#save-status-indicator.saving {
  color: var(--color-primary);
}

#save-status-indicator.saved {
  color: var(--color-accent);
}

#save-status-indicator i, #save-status-indicator svg {
  width: 14px;
  height: 14px;
}

.editor-actions {
  display: flex;
  align-items: center;
  gap: 4px;
}

.editor-actions .icon-btn {
  width: 34px;
  height: 34px;
  border-radius: var(--radius-xs);
}

.editor-actions .icon-btn.danger:hover {
  background: var(--color-danger-light);
  color: var(--color-danger);
}

.editor-actions .icon-btn.active[title*="Pin"] {
  color: var(--color-primary);
}

.editor-actions .icon-btn.active[title*="Favorites"] {
  color: var(--color-secondary);
}

.editor-actions .icon-btn.active[title*="Archive"] {
  color: var(--text-primary);
  background: var(--glass-bg-active);
}

/* Metadata Strip */
.editor-metadata-strip {
  padding: 12px 28px;
  border-bottom: var(--glass-border-subtle);
  background: var(--glass-bg);
  backdrop-filter: var(--glass-blur-light);
  -webkit-backdrop-filter: var(--glass-blur-light);
  display: flex;
  align-items: center;
  gap: 20px;
  flex-wrap: wrap;
  font-size: 0.84rem;
}

.metadata-item {
  display: flex;
  align-items: center;
  gap: 8px;
  color: var(--text-secondary);
}

.metadata-item.flex-grow {
  flex-grow: 1;
}

.metadata-item i, .metadata-item svg {
  width: 16px;
  height: 16px;
  color: var(--text-muted);
}

.select-wrapper.borderless {
  background: transparent;
  padding: 0 18px 0 0;
  border-radius: 0;
  border: none;
  backdrop-filter: none;
  -webkit-backdrop-filter: none;
}

.select-wrapper.borderless select {
  font-weight: 500;
  color: var(--text-primary);
}

/* Tags */
.tags-input-container {
  display: flex;
  align-items: center;
  gap: 6px;
  flex-wrap: wrap;
  width: 100%;
}

.tag-pill {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  background: var(--color-primary-light);
  color: var(--color-primary);
  border-radius: 100px;
  padding: 3px 10px;
  font-size: 0.74rem;
  font-weight: 600;
}

.tag-pill-remove {
  cursor: pointer;
  width: 12px;
  height: 12px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  color: var(--color-primary);
  border-radius: 50%;
  transition: all var(--transition-fast);
}

.tag-pill-remove:hover {
  background: var(--color-primary);
  color: #FFFFFF;
}

#editor-tag-input {
  font-size: 0.8rem;
  color: var(--text-primary);
  min-width: 80px;
  flex-grow: 1;
  padding: 2px 0;
}

/* Editor Title */
.editor-title-container {
  padding: 20px 28px 0 28px;
}

.editor-title-input {
  width: 100%;
  font-size: 2.1rem;
  font-weight: 800;
  letter-spacing: -0.03em;
  border-bottom: 2px solid transparent;
  padding: 6px 0;
  color: var(--text-primary);
  font-family: 'Outfit', sans-serif;
  transition: border-color var(--transition-normal);
}

.editor-title-input:focus {
  border-color: var(--color-primary-light);
}

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

/* Editor View Tabs */
.editor-view-selector {
  display: flex;
  border-bottom: var(--glass-border-subtle);
  padding: 0 28px;
  gap: 18px;
}

.view-tab {
  padding: 12px 4px;
  font-size: 0.84rem;
  font-weight: 600;
  color: var(--text-secondary);
  border-bottom: 2px solid transparent;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  transition: all var(--transition-normal);
}

.view-tab i, .view-tab svg {
  width: 14px;
  height: 14px;
}

.view-tab:hover {
  color: var(--text-primary);
}

.view-tab.active {
  color: var(--color-primary);
  border-color: var(--color-primary);
}

/* Editor Writing Area */
.editor-workspace {
  flex-grow: 1;
  display: flex;
  overflow: hidden;
  position: relative;
}

.editor-textarea-wrapper, .editor-preview-wrapper {
  flex: 1 1 0%;
  height: 100%;
  overflow-y: auto;
  padding: 28px;
}

.editor-textarea-wrapper {
  display: flex;
  flex-direction: column;
}

.markdown-textarea {
  width: 100%;
  height: 100%;
  flex-grow: 1;
  resize: none;
  font-size: 0.95rem;
  line-height: 1.7;
  color: var(--text-primary);
  background: transparent;
  font-family: 'Inter', -apple-system, sans-serif;
  border: none;
  outline: none;
  letter-spacing: 0.01em;
}

.markdown-textarea::placeholder {
  color: var(--text-muted);
}

/* Markdown Preview */
.markdown-body {
  font-size: 0.95rem;
  line-height: 1.7;
  color: var(--text-primary);
}

.markdown-body h1, .markdown-body h2, .markdown-body h3, .markdown-body h4 {
  margin-top: 28px;
  margin-bottom: 14px;
  font-weight: 700;
  line-height: 1.3;
  letter-spacing: -0.02em;
}

.markdown-body h1 {
  font-size: 1.5rem;
  border-bottom: var(--glass-border-subtle);
  padding-bottom: 8px;
}

.markdown-body h2 {
  font-size: 1.3rem;
  border-bottom: var(--glass-border-subtle);
  padding-bottom: 6px;
}

.markdown-body h3 { font-size: 1.15rem; }
.markdown-body h4 { font-size: 1rem; }

.markdown-body p, .markdown-body ul, .markdown-body ol, .markdown-body blockquote, .markdown-body pre {
  margin-bottom: 18px;
}

.markdown-body ul, .markdown-body ol {
  padding-left: 22px;
}

.markdown-body li {
  margin-bottom: 6px;
}

.markdown-body blockquote {
  border-left: 3px solid var(--color-primary);
  padding: 8px 18px;
  color: var(--text-secondary);
  background: var(--glass-bg);
  border-radius: 0 var(--radius-xs) var(--radius-xs) 0;
  backdrop-filter: var(--glass-blur-light);
  -webkit-backdrop-filter: var(--glass-blur-light);
}

.markdown-body pre {
  background: var(--glass-bg);
  border: var(--glass-border-subtle);
  border-radius: var(--radius-sm);
  padding: 16px;
  overflow-x: auto;
  backdrop-filter: var(--glass-blur-light);
  -webkit-backdrop-filter: var(--glass-blur-light);
}

.markdown-body code {
  font-family: 'Fira Code', Consolas, Monaco, monospace;
  font-size: 0.85rem;
  background: var(--glass-bg);
  padding: 2px 8px;
  border-radius: var(--radius-xs);
  border: var(--glass-border-subtle);
}

.markdown-body pre code {
  background: transparent;
  padding: 0;
  border-radius: 0;
  border: none;
}

.markdown-body table {
  width: 100%;
  border-collapse: collapse;
  margin-bottom: 18px;
  font-size: 0.9rem;
}

.markdown-body th, .markdown-body td {
  border: var(--glass-border-subtle);
  padding: 10px 14px;
}

.markdown-body th {
  background: var(--glass-bg);
  font-weight: 600;
}

.markdown-body img {
  max-width: 100%;
  border-radius: var(--radius-md);
}

/* Split View */
.editor-workspace.split-layout {
  display: grid;
  grid-template-columns: 1fr 1fr;
}

.editor-workspace.split-layout .editor-textarea-wrapper {
  border-right: var(--glass-border-subtle);
  display: block !important;
}

.editor-workspace.split-layout .editor-preview-wrapper {
  display: block !important;
}

/* Editor Footer */
.editor-footer-stats {
  padding: 10px 28px;
  border-top: var(--glass-border-subtle);
  background: var(--glass-bg);
  backdrop-filter: var(--glass-blur-light);
  -webkit-backdrop-filter: var(--glass-blur-light);
  font-size: 0.74rem;
  color: var(--text-secondary);
  display: flex;
  align-items: center;
  flex-shrink: 0;
}

.dot-separator {
  margin: 0 10px;
  color: var(--text-muted);
  opacity: 0.5;
}

/* ============================================================
   MODALS & DIALOGS — Glass Morphism
   ============================================================ */
.modal-overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  background: rgba(0, 0, 0, 0.3);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 500;
  animation: fadeIn 0.2s ease forwards;
}

.modal-card {
  background: var(--glass-bg);
  backdrop-filter: var(--glass-blur);
  -webkit-backdrop-filter: var(--glass-blur);
  border: var(--glass-border);
  border-radius: var(--radius-xl);
  width: 100%;
  max-width: 480px;
  box-shadow: var(--glass-shadow);
  display: flex;
  flex-direction: column;
  max-height: 80vh;
  margin: 20px;
  animation: slideUp 0.3s cubic-bezier(0.16, 1, 0.3, 1) forwards;
  position: relative;
  overflow: hidden;
}

.modal-header {
  padding: 18px 22px;
  border-bottom: var(--glass-border-subtle);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.modal-header h3 {
  font-size: 1.08rem;
  font-weight: 700;
}

.modal-close {
  width: 30px;
  height: 30px;
  border-radius: var(--radius-xs);
}

.modal-body {
  padding: 22px;
  overflow-y: auto;
}

.inline-form {
  display: flex;
  gap: 10px;
  margin-bottom: 18px;
}

.inline-form input {
  flex-grow: 1;
  padding: 10px 14px;
  background: var(--input-bg);
  border: var(--glass-border-subtle);
  border-radius: var(--radius-sm);
  color: var(--text-primary);
  font-size: 0.9rem;
  backdrop-filter: var(--glass-blur-light);
  -webkit-backdrop-filter: var(--glass-blur-light);
  transition: all var(--transition-normal);
}

.inline-form input:focus {
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px var(--color-primary-light);
}

.modal-scroll-list {
  display: flex;
  flex-direction: column;
  gap: 6px;
  max-height: 250px;
  overflow-y: auto;
}

.modal-list-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 10px 14px;
  border-radius: var(--radius-sm);
  background: var(--glass-bg);
  border: var(--glass-border-subtle);
  font-size: 0.9rem;
  transition: background var(--transition-fast);
}

.modal-list-item:hover {
  background: var(--glass-bg-hover);
}

.modal-list-item-btn {
  width: 26px;
  height: 26px;
  border-radius: var(--radius-xs);
  color: var(--color-danger);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: all var(--transition-fast);
}

.modal-list-item-btn:hover {
  background: var(--color-danger-light);
}

/* Settings sections */
.settings-section {
  margin-bottom: 26px;
  padding-bottom: 18px;
  border-bottom: var(--glass-border-subtle);
}

.settings-section:last-child {
  margin-bottom: 0;
  padding-bottom: 0;
  border-bottom: none;
}

.settings-section h4 {
  font-size: 0.84rem;
  font-weight: 700;
  margin-bottom: 12px;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--text-muted);
}

.settings-desc {
  font-size: 0.8rem;
  color: var(--text-secondary);
  margin-bottom: 14px;
  line-height: 1.5;
}

.theme-toggle-row {
  display: flex;
  gap: 12px;
}

.theme-toggle-row.gap-sm {
  gap: 8px;
}

.theme-toggle-row .btn {
  font-size: 0.86rem;
}

.profile-summary {
  display: flex;
  align-items: center;
  gap: 14px;
}

.avatar-large {
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--color-primary), var(--color-secondary));
  color: #FFFFFF;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.2rem;
  font-weight: 700;
  box-shadow: 0 4px 12px rgba(91, 140, 255, 0.25);
}

.summary-username {
  font-size: 0.95rem;
  font-weight: 700;
}

.summary-role {
  font-size: 0.8rem;
  color: var(--text-muted);
}

/* Mobile Header Actions */
.mobile-header-actions {
  display: flex;
  align-items: center;
  gap: 6px;
}

/* ============================================================
   FORMATTING TOOLBAR — Glass
   ============================================================ */
.format-toolbar {
  display: flex;
  flex-direction: column;
  gap: 6px;
  background: var(--glass-bg);
  backdrop-filter: var(--glass-blur-light);
  -webkit-backdrop-filter: var(--glass-blur-light);
  border: var(--glass-border-subtle);
  border-radius: var(--radius-sm);
  padding: 8px 12px;
  margin-bottom: 14px;
  box-shadow: var(--glass-shadow-sm);
  position: sticky;
  top: 0;
  z-index: 10;
}

.format-toolbar-row {
  display: flex;
  align-items: center;
  gap: 4px;
  flex-wrap: wrap;
}

.format-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 34px;
  height: 34px;
  border-radius: var(--radius-xs);
  border: 1px solid transparent;
  background: transparent;
  color: var(--text-secondary);
  cursor: pointer;
  font-family: 'Outfit', sans-serif;
  font-size: 0.92rem;
  font-weight: 700;
  transition: all var(--transition-normal);
}

.format-btn:hover {
  background: var(--glass-bg-hover);
  color: var(--text-primary);
}

.format-btn:active {
  transform: scale(0.9);
  transition-duration: 80ms;
}

.format-btn.active {
  background: var(--color-primary-light);
  color: var(--color-primary);
  border-color: rgba(91, 140, 255, 0.2);
}

.format-btn svg {
  width: 16px;
  height: 16px;
  stroke-width: 2.25;
}

.format-separator {
  width: 1px;
  height: 20px;
  background: var(--glass-border-subtle);
  margin: 0 4px;
  border: none;
}

.format-spacer {
  flex-grow: 1;
}

/* Dropdowns */
.format-menu-wrapper {
  position: relative;
  display: inline-block;
}

.format-dropdown {
  position: absolute;
  top: calc(100% + 6px);
  left: 0;
  background: var(--glass-bg);
  backdrop-filter: var(--glass-blur);
  -webkit-backdrop-filter: var(--glass-blur);
  border: var(--glass-border);
  border-radius: var(--radius-sm);
  box-shadow: var(--glass-shadow);
  padding: 8px;
  z-index: 100;
  min-width: 160px;
  display: flex;
  flex-direction: column;
  gap: 2px;
  animation: slideUp 0.2s cubic-bezier(0.16, 1, 0.3, 1) forwards;
}

.format-menu-wrapper.align-right .format-dropdown {
  left: auto;
  right: 0;
}

.format-dropdown.hidden {
  display: none;
}

.dropdown-item {
  display: flex;
  align-items: center;
  gap: 8px;
  width: 100%;
  padding: 8px 12px;
  border: none;
  background: transparent;
  color: var(--text-secondary);
  border-radius: var(--radius-xs);
  font-size: 0.84rem;
  font-weight: 500;
  cursor: pointer;
  text-align: left;
  transition: all var(--transition-fast);
}

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

.dropdown-item svg {
  width: 14px;
  height: 14px;
}

.color-grid {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 8px;
  padding: 6px;
  min-width: 140px;
}

.color-circle {
  width: 22px;
  height: 22px;
  border-radius: 50%;
  border: 1px solid rgba(0, 0, 0, 0.1);
  cursor: pointer;
  transition: all var(--transition-normal);
}

.color-circle:hover {
  transform: scale(1.25);
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.15);
}

/* Form input class used in modals */
.form-input {
  transition: all var(--transition-normal);
}

.form-input:focus {
  border-color: var(--color-primary) !important;
  box-shadow: 0 0 0 3px var(--color-primary-light);
}

/* ============================================================
   RESPONSIVE — TABLET
   ============================================================ */
@media (max-width: 1024px) {
  .sidebar {
    position: fixed;
    top: 0;
    left: 0;
    height: 100vh;
    transform: translateX(-100%);
    box-shadow: var(--glass-shadow);
    z-index: 200;
  }

  .sidebar.active {
    transform: translateX(0);
  }

  .mobile-header {
    display: flex;
  }

  .panes-container {
    height: calc(100vh - 58px);
  }

  .notes-list-pane {
    width: 340px;
  }
}

/* ============================================================
   RESPONSIVE — MOBILE
   ============================================================ */
@media (max-width: 768px) {
  .notes-list-pane {
    width: 100%;
    border-right: none;
  }

  .pane-header {
    padding: 18px;
  }

  .pane-body {
    padding: 18px;
  }

  .editor-pane {
    position: fixed;
    top: 58px;
    left: 0;
    width: 100%;
    height: calc(100vh - 58px);
    z-index: 50;
    transform: translateX(100%);
    transition: transform var(--transition-normal);
    background: var(--bg-primary);
  }

  .editor-pane.active {
    transform: translateX(0);
  }

  .editor-mobile-bar {
    display: flex;
  }

  .editor-workspace.split-layout {
    grid-template-columns: 1fr;
  }

  .editor-workspace.split-layout .editor-preview-wrapper {
    display: none !important;
  }

  .desktop-only {
    display: none !important;
  }

  .stats-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 12px;
  }

  .stat-card {
    padding: 16px;
  }

  .stat-value {
    font-size: 1.5rem;
  }

  .editor-title-input {
    font-size: 1.6rem;
  }

  .pane-title {
    font-size: 1.3rem;
  }

  .editor-toolbar {
    padding: 12px 18px;
  }

  .editor-metadata-strip {
    padding: 10px 18px;
  }

  .editor-textarea-wrapper, .editor-preview-wrapper {
    padding: 18px;
  }

  .editor-title-container {
    padding: 16px 18px 0 18px;
  }

  .editor-view-selector {
    padding: 0 18px;
  }

  .editor-footer-stats {
    padding: 8px 18px;
  }
}

@media (max-width: 480px) {
  .stats-grid {
    grid-template-columns: 1fr;
  }

  .login-card {
    padding: 32px 24px;
  }

  .recent-notes-grid {
    grid-template-columns: 1fr;
  }
}

@media (min-width: 1025px) {
  .mobile-only {
    display: none !important;
  }
}

/* ============================================================
   ACCESSIBILITY — Focus States
   ============================================================ */
:focus-visible {
  outline: 2px solid var(--color-primary);
  outline-offset: 2px;
}

button:focus-visible,
input:focus-visible,
select:focus-visible,
textarea:focus-visible {
  outline: 2px solid var(--color-primary);
  outline-offset: 2px;
}

/* ============================================================
   PRINT STYLES
   ============================================================ */
@media print {
  .sidebar,
  .mobile-header,
  .editor-toolbar,
  .editor-metadata-strip,
  .editor-view-selector,
  .editor-footer-stats,
  .format-toolbar {
    display: none !important;
  }

  .editor-pane {
    position: static !important;
    transform: none !important;
  }

  body {
    background: white;
  }

  .markdown-body {
    color: #000;
  }
}