/* ============================================================
   base.css — Glossy Cockpit Dashboard · Base Styles
   ============================================================ */

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

/* ----- Root Variables ----- */
:root {
  /* ── Spacing ── */
  --space-xs: 4px;
  --space-sm: 8px;
  --space-md: 16px;
  --space-lg: 24px;
  --space-xl: 32px;
  --space-2xl: 48px;

  /* ── Fonts ── */
  --font-family: 'Inter', system-ui, -apple-system, sans-serif;
  --font-family-display: 'Plus Jakarta Sans', 'SF Pro Display', system-ui, -apple-system, sans-serif;

  --font-size-xs: 12px;
  --font-size-sm: 14px;
  --font-size-md: 16px;
  --font-size-lg: 20px;
  --font-size-xl: 24px;
  --font-size-2xl: 32px;

  --font-weight-normal: 400;
  --font-weight-medium: 500;
  --font-weight-semibold: 600;
  --font-weight-bold: 700;

  --line-height-tight: 1.25;
  --line-height-normal: 1.5;

  /* ── Border Radii (Apple Liquid Glass) ── */
  --radius-sm: 8px;
  --radius-md: 14px;
  --radius-lg: 20px;
  --radius-pill: 9999px;

  /* ── Shadows (Softer, Liquid feel) ── */
  --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.08),
               0 1px 2px rgba(0, 0, 0, 0.04);
  --shadow-md: 0 8px 24px rgba(0, 0, 0, 0.12),
               0 2px 8px rgba(0, 0, 0, 0.06);
  --shadow-lg: 0 20px 48px rgba(0, 0, 0, 0.18),
               0 8px 16px rgba(0, 0, 0, 0.08);
  
  /* ── Liquid Borders ── */
  --border-light: rgba(255, 255, 255, 0.2);
  --border-highlight: rgba(255, 255, 255, 0.4);
  --glass-glare: linear-gradient(110deg, rgba(255,255,255,0.4) 0%, rgba(255,255,255,0.05) 30%, rgba(255,255,255,0) 100%);

  /* ── Transitions ── */
  --transition-fast: 150ms ease;
  --transition-normal: 200ms ease;

  /* ── Layout: Panel Widths ── */
  --panel-chat-width: 320px;
  --panel-insights-width: 320px;
  --panel-width-chat: 320px;
  --panel-width-insights: 320px;

  /* ── Layout: Heights ── */
  --header-height: 56px;
  --status-bar-height: 32px;
}

/* ----- Base Typography ----- */
html {
  font-family: var(--font-family);
  font-size: var(--font-size-md);
  line-height: var(--line-height-normal);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
}

body {
  height: 100vh;
  max-height: 100vh;
  overflow: hidden;
  background-color: var(--bg-primary);
  /* Optional: a subtle noise texture to look more like macOS materials */
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 200 200' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='noiseFilter'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.65' numOctaves='3' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23noiseFilter)' opacity='0.05'/%3E%3C/svg%3E");
}

/* ----- Scrollbar Styling (thin, themed) ----- */
* {
  scrollbar-width: thin;
  scrollbar-color: rgba(255, 255, 255, 0.2) transparent;
}

::-webkit-scrollbar {
  width: 6px;
  height: 6px;
}

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

::-webkit-scrollbar-thumb {
  background: rgba(255, 255, 255, 0.2);
  border-radius: 3px;
}

::-webkit-scrollbar-thumb:hover {
  background: rgba(255, 255, 255, 0.35);
}

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

/* ----- Selection Styling ----- */
::selection {
  background: rgba(99, 179, 237, 0.35);
  color: inherit;
}

::-moz-selection {
  background: rgba(99, 179, 237, 0.35);
  color: inherit;
}

/* ----- Native <select> dropdown options -----
   The selects use a translucent --glass-bg, which the native option popup
   (Chromium on Windows) can't composite, so options render dark-on-dark.
   Force an opaque, theme-aware background + matching text on the options. */
select option {
  background-color: var(--bg-primary);
  color: var(--text-primary);
}

/* ----- Focus Visible Styling ----- */
:focus-visible {
  outline: 2px solid rgba(99, 179, 237, 0.7);
  outline-offset: 2px;
  border-radius: var(--radius-sm);
}

/* ----- Utility: Hidden ----- */
.hidden {
  display: none !important;
}

/* ----- Glass Card ----- */
.glass-card {
  position: relative;
  background: linear-gradient(145deg, rgba(255, 255, 255, 0.12) 0%, rgba(255, 255, 255, 0.03) 100%);
  backdrop-filter: blur(30px) saturate(140%);
  -webkit-backdrop-filter: blur(30px) saturate(140%);
  border: 1px solid var(--border-light);
  border-top: 1.5px solid var(--border-highlight);
  border-left: 1.5px solid rgba(255, 255, 255, 0.25);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-md), inset 0 0 20px rgba(255,255,255,0.05);
  transition: box-shadow var(--transition-normal),
              border-color var(--transition-normal),
              transform var(--transition-normal);
  overflow: hidden;
}

.glass-card::before {
  content: "";
  position: absolute;
  inset: 0;
  background: var(--glass-glare);
  pointer-events: none;
  opacity: 0.8;
}

.glass-card:hover {
  box-shadow: var(--shadow-lg), inset 0 0 30px rgba(255,255,255,0.1);
  border-color: rgba(255, 255, 255, 0.3);
  border-top-color: rgba(255, 255, 255, 0.5);
  transform: translateY(-4px) scale(1.01);
}