/* ============================================
   CmdVault — Main Design System
   Dark Onyx Coder Aesthetic
   ============================================ */

/* --- Google Fonts Import --- */
@import url('https://fonts.googleapis.com/css2?family=JetBrains+Mono:wght@300;400;500;600;700&family=Cairo:wght@400;600;700&display=swap');

/* --- Design Tokens --- */
:root {
  /* Onyx Backgrounds */
  --bg-void:        #050508;
  --bg-deep:        #0a0a0f;
  --bg-base:        #0f0f17;
  --bg-surface:     #14141f;
  --bg-elevated:    #1a1a28;
  --bg-overlay:     #22222f;
  --bg-hover:       #2a2a3a;

  /* Vibrant Accents */
  --accent-cyan:    #00e5ff;
  --accent-magenta: #ff2d75;
  --accent-lime:    #39ff14;
  --accent-amber:   #ffab00;
  --accent-violet:  #b388ff;
  --accent-blue:    #448aff;

  /* Glow Variants */
  --glow-cyan:      0 0 20px rgba(0, 229, 255, 0.3);
  --glow-magenta:   0 0 20px rgba(255, 45, 117, 0.3);
  --glow-lime:      0 0 20px rgba(57, 255, 20, 0.3);

  /* Text */
  --text-primary:   #eeeef5;
  --text-secondary: #b0b0c0;
  --text-muted:     #7b7b90;
  --text-accent:    var(--accent-cyan);

  /* Borders */
  --border-subtle:  rgba(255, 255, 255, 0.09);
  --border-medium:  rgba(255, 255, 255, 0.15);
  --border-accent:  rgba(0, 229, 255, 0.3);

  /* Typography */
  --font-mono:      'JetBrains Mono', 'Fira Code', 'Cascadia Code', 'Consolas', monospace;
  --font-arabic:    'Cairo', 'Tajawal', sans-serif;
  --font-size-xs:   0.8rem;
  --font-size-sm:   0.875rem;
  --font-size-base: 0.95rem;
  --font-size-md:   1.05rem;
  --font-size-lg:   1.3rem;
  --font-size-xl:   1.6rem;
  --font-size-2xl:  2.1rem;

  /* Spacing */
  --space-xs:  4px;
  --space-sm:  8px;
  --space-md:  12px;
  --space-lg:  16px;
  --space-xl:  24px;
  --space-2xl: 32px;
  --space-3xl: 48px;

  /* Radius */
  --radius-sm:  4px;
  --radius-md:  8px;
  --radius-lg:  12px;
  --radius-xl:  16px;
  --radius-pill: 100px;

  /* Transitions */
  --transition-fast:   150ms ease;
  --transition-base:   250ms ease;
  --transition-smooth: 350ms cubic-bezier(0.4, 0, 0.2, 1);

  /* Sidebar */
  --sidebar-width: 280px;
  --sidebar-collapsed: 0px;

  /* Z-Index */
  --z-sidebar:  100;
  --z-header:   200;
  --z-modal:    500;
  --z-toast:    600;
  --z-hud:      650;
  --z-tooltip:  700;
}

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

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

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

/* Arabic font override */
[dir="rtl"] body,
[dir="rtl"] input,
[dir="rtl"] textarea,
[dir="rtl"] select,
[dir="rtl"] button {
  font-family: var(--font-arabic);
}

[dir="rtl"] .cmd-text,
[dir="rtl"] .command-body,
[dir="rtl"] code,
[dir="rtl"] pre {
  font-family: var(--font-mono);
  direction: ltr;
  text-align: left;
}

/* --- Scrollbar --- */
::-webkit-scrollbar {
  width: 6px;
  height: 6px;
}

::-webkit-scrollbar-track {
  background: var(--bg-deep);
}

::-webkit-scrollbar-thumb {
  background: var(--bg-hover);
  border-radius: var(--radius-pill);
}

::-webkit-scrollbar-thumb:hover {
  background: var(--accent-cyan);
}

/* --- Selection --- */
::selection {
  background: rgba(0, 229, 255, 0.25);
  color: var(--text-primary);
}

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

.sidebar {
  width: var(--sidebar-width);
  min-width: var(--sidebar-width);
  height: 100vh;
  position: fixed;
  top: 0;
  left: 0;
  z-index: var(--z-sidebar);
  background: var(--bg-base);
  border-right: 1px solid var(--border-subtle);
  display: flex;
  flex-direction: column;
  transition: transform var(--transition-smooth);
  overflow-y: auto;
  overflow-x: hidden;
}

[dir="rtl"] .sidebar {
  left: auto;
  right: 0;
  border-right: none;
  border-left: 1px solid var(--border-subtle);
}

.sidebar.collapsed {
  transform: translateX(-100%);
}

[dir="rtl"] .sidebar.collapsed {
  transform: translateX(100%);
}

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

[dir="rtl"] .main-content {
  margin-left: 0;
  margin-right: var(--sidebar-width);
  transition: margin-right var(--transition-smooth);
}

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

[dir="rtl"] .sidebar.collapsed ~ .main-content {
  margin-right: 0;
}

/* --- Header --- */
.app-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--space-lg) var(--space-xl);
  background: var(--bg-base);
  border-bottom: 1px solid var(--border-subtle);
  position: sticky;
  top: 0;
  z-index: var(--z-header);
  gap: var(--space-lg);
  backdrop-filter: blur(20px);
  background: rgba(15, 15, 23, 0.75);
}

.header-left {
  display: flex;
  align-items: center;
  gap: var(--space-md);
}

.header-center {
  flex: 1;
  max-width: 600px;
  display: flex;
  align-items: center;
}

.header-right {
  display: flex;
  align-items: center;
  gap: var(--space-md);
}

/* --- Page Content --- */
.page-content {
  padding: var(--space-xl);
  flex: 1;
}

/* --- Section Headers --- */
.section-header {
  display: flex;
  align-items: center;
  gap: var(--space-md);
  margin-bottom: var(--space-lg);
}

.section-header h2 {
  font-size: var(--font-size-lg);
  font-weight: 600;
  color: var(--text-primary);
}

.section-header .section-icon {
  color: var(--accent-cyan);
  font-size: var(--font-size-lg);
}

.section-header .count-badge {
  background: var(--bg-hover);
  color: var(--text-secondary);
  font-size: var(--font-size-xs);
  padding: 2px 8px;
  border-radius: var(--radius-pill);
  margin-left: var(--space-sm);
}

/* --- Commands Grid --- */
.commands-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(340px, 1fr));
  gap: var(--space-lg);
}

.pinned-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: var(--space-md);
  margin-bottom: var(--space-2xl);
}

/* --- Empty State --- */
.empty-state {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: var(--space-3xl);
  color: var(--text-muted);
  text-align: center;
  gap: var(--space-lg);
}

.empty-state .empty-icon {
  font-size: 3rem;
  opacity: 0.3;
}

.empty-state p {
  font-size: var(--font-size-base);
  max-width: 360px;
  color: var(--text-secondary);
}

/* --- Utility Classes --- */
.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
}

.text-cyan    { color: var(--accent-cyan); }
.text-magenta { color: var(--accent-magenta); }
.text-lime    { color: var(--accent-lime); }
.text-amber   { color: var(--accent-amber); }
.text-muted   { color: var(--text-muted); }

/* --- Responsive --- */
@media (max-width: 900px) {
  .sidebar {
    transform: translateX(-100%);
  }
  [dir="rtl"] .sidebar {
    transform: translateX(100%);
  }
  .sidebar.open {
    transform: translateX(0);
  }
  .main-content {
    margin-left: 0 !important;
  }
  [dir="rtl"] .main-content {
    margin-right: 0 !important;
  }
  .commands-grid {
    grid-template-columns: 1fr;
  }
  .pinned-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 600px) {
  .app-header {
    flex-wrap: wrap;
    padding: var(--space-md);
  }
  .header-center {
    order: 3;
    max-width: 100%;
    flex-basis: 100%;
  }
  .page-content {
    padding: var(--space-md);
  }
}