/* 槿榕AI Product Design System · 2026
   Tokens live here so feature styles never invent one-off colors or motion. */
:root {
  color-scheme: light;
  --jr-brand-50: #edf8f4;
  --jr-brand-100: #d7f1e7;
  --jr-brand-200: #a9dfcf;
  --jr-brand-400: #39b58f;
  --jr-brand-500: #168b69;
  --jr-brand-600: #087657;
  --jr-brand-700: #075a45;
  --jr-brand-rgb: 22, 139, 105;

  --jr-bg: #f4f5f8;
  --jr-bg-elevated: #fbfbfd;
  --jr-surface: rgba(255, 255, 255, .94);
  --jr-surface-soft: rgba(245, 247, 251, .88);
  --jr-glass-low: rgba(250, 251, 254, .66);
  --jr-glass-mid: rgba(250, 251, 254, .78);
  --jr-glass-high: rgba(255, 255, 255, .9);
  --jr-text: #14161b;
  --jr-text-secondary: #565d69;
  --jr-text-tertiary: #7c8492;
  --jr-line: rgba(28, 36, 54, .09);
  --jr-line-strong: rgba(28, 36, 54, .14);
  --jr-positive: #27815a;
  --jr-warning: #a66a16;
  --jr-danger: #c4474e;

  --jr-radius-xs: 10px;
  --jr-radius-sm: 14px;
  --jr-radius-md: 18px;
  --jr-radius-lg: 24px;
  --jr-radius-xl: 30px;
  --jr-radius-pill: 999px;

  --jr-space-1: 4px;
  --jr-space-2: 8px;
  --jr-space-3: 12px;
  --jr-space-4: 16px;
  --jr-space-5: 20px;
  --jr-space-6: 24px;
  --jr-space-8: 32px;
  --jr-space-10: 40px;

  --jr-font-xs: 11px;
  --jr-font-sm: 13px;
  --jr-font-md: 15px;
  --jr-font-lg: 18px;
  --jr-font-xl: 24px;
  --jr-font-display: clamp(30px, 4vw, 44px);

  --jr-blur-sm: 12px;
  --jr-blur-md: 22px;
  --jr-blur-lg: 34px;
  --jr-shadow-1: 0 1px 2px rgba(19, 25, 39, .04), 0 8px 24px rgba(19, 25, 39, .055);
  --jr-shadow-2: 0 18px 50px rgba(24, 32, 50, .10), 0 2px 8px rgba(24, 32, 50, .045);
  --jr-shadow-3: 0 30px 90px rgba(18, 24, 39, .18), 0 8px 22px rgba(18, 24, 39, .08);
  --jr-inner-highlight: inset 0 1px 0 rgba(255, 255, 255, .78);

  --jr-duration-fast: 150ms;
  --jr-duration-base: 200ms;
  --jr-duration-slow: 250ms;
  --jr-duration-sheet: 350ms;
  --jr-ease-standard: cubic-bezier(.2, .72, .2, 1);
  --jr-ease-spring: cubic-bezier(.2, .9, .25, 1.16);

  /* Backward-compatible aliases for the existing feature code. */
  --brand: var(--jr-brand-500);
  --brand-d: var(--jr-brand-700);
  --brand-l: var(--jr-brand-400);
  --brand-xl: var(--jr-brand-200);
  --accent: var(--jr-positive);
  --brand-bg: var(--jr-brand-50);
  --g100: var(--jr-brand-100);
  --g50: #f7f8fb;
  --ink: var(--jr-text);
  --text: var(--jr-text);
  --sub: var(--jr-text-secondary);
  --mute: var(--jr-text-tertiary);
  --bdr: var(--jr-line);
  --separator: var(--jr-line);
  --surface: var(--jr-surface);
  --surface-soft: var(--jr-surface-soft);
  --surface-raised: var(--jr-glass-high);
  --control-glass: var(--jr-glass-mid);
  --glass-stroke: rgba(255, 255, 255, .72);
  --shadow-sm: var(--jr-shadow-1);
  --shadow: var(--jr-shadow-2);
  --shadow-lg: var(--jr-shadow-3);
  --shadow-float: var(--jr-shadow-2);
  --ease: var(--jr-ease-standard);
  --spring: var(--jr-ease-spring);
  --radius: var(--jr-radius-md);
  --radius-lg: var(--jr-radius-lg);
  --radius-sm: var(--jr-radius-sm);
}

:root[data-theme="dark"] {
  color-scheme: dark;
  --jr-brand-50: rgba(80, 213, 169, .12);
  --jr-brand-100: rgba(80, 213, 169, .2);
  --jr-brand-200: #8ce8ca;
  --jr-brand-400: #62ddb7;
  --jr-brand-500: #50d5a9;
  --jr-brand-600: #72e0bd;
  --jr-brand-700: #b8f3df;
  --jr-brand-rgb: 80, 213, 169;
  --jr-bg: #11151d;
  --jr-bg-elevated: #171c26;
  --jr-surface: rgba(25, 31, 43, .94);
  --jr-surface-soft: rgba(31, 38, 52, .82);
  --jr-glass-low: rgba(27, 33, 45, .62);
  --jr-glass-mid: rgba(28, 35, 48, .76);
  --jr-glass-high: rgba(33, 40, 54, .9);
  --jr-text: #f1f4fa;
  --jr-text-secondary: #b3bac8;
  --jr-text-tertiary: #858e9d;
  --jr-line: rgba(224, 231, 255, .10);
  --jr-line-strong: rgba(224, 231, 255, .17);
  --jr-positive: #69c69b;
  --jr-warning: #dfad5d;
  --jr-danger: #ec7c84;
  --jr-shadow-1: 0 1px 2px rgba(0, 0, 0, .18), 0 8px 24px rgba(0, 0, 0, .18);
  --jr-shadow-2: 0 18px 52px rgba(0, 0, 0, .28), 0 2px 8px rgba(0, 0, 0, .2);
  --jr-shadow-3: 0 32px 100px rgba(0, 0, 0, .46), 0 8px 22px rgba(0, 0, 0, .28);
  --jr-inner-highlight: inset 0 1px 0 rgba(255, 255, 255, .09);
  --glass-stroke: rgba(255, 255, 255, .10);
  --g50: #1b2230;
}

html,
body {
  background: var(--jr-bg);
  color: var(--jr-text);
}

body {
  font-size: var(--jr-font-md);
  line-height: 1.5;
  letter-spacing: -.012em;
  transition: background-color var(--jr-duration-slow) var(--jr-ease-standard),
              color var(--jr-duration-slow) var(--jr-ease-standard);
}

button,
input,
textarea,
select {
  font: inherit;
}

button,
[role="button"] {
  transition-duration: var(--jr-duration-base);
  transition-timing-function: var(--jr-ease-standard);
}

button:focus-visible,
input:focus-visible,
select:focus-visible,
textarea:focus-visible,
a:focus-visible,
[role="button"]:focus-visible {
  outline: 3px solid rgba(var(--jr-brand-rgb), .46) !important;
  outline-offset: 3px;
  box-shadow: 0 0 0 6px color-mix(in srgb, var(--jr-bg) 84%, transparent) !important;
}

.jr-glass {
  border: 1px solid var(--jr-line);
  background:
    linear-gradient(180deg, rgba(255, 255, 255, .11), transparent 34%),
    var(--jr-glass-mid);
  box-shadow: var(--jr-shadow-2), var(--jr-inner-highlight);
  backdrop-filter: blur(var(--jr-blur-md)) saturate(1.18);
  -webkit-backdrop-filter: blur(var(--jr-blur-md)) saturate(1.18);
}

.jr-theme-toggle {
  display: grid;
  place-items: center;
  flex: 0 0 auto;
  width: 40px;
  height: 40px;
  padding: 0;
  border: 1px solid var(--jr-line);
  border-radius: var(--jr-radius-pill);
  background: var(--jr-glass-high);
  color: var(--jr-text-secondary);
  box-shadow: var(--jr-shadow-1), var(--jr-inner-highlight);
  cursor: pointer;
}

.jr-theme-toggle:hover {
  color: var(--jr-brand-600);
  transform: translateY(-1px);
}

.jr-theme-toggle:active {
  transform: scale(.94);
}

.jr-theme-toggle svg {
  width: 18px;
  height: 18px;
  pointer-events: none;
}

.jr-toast-region {
  position: fixed;
  z-index: 5000;
  top: calc(18px + env(safe-area-inset-top));
  left: 50%;
  display: grid;
  gap: 8px;
  width: min(420px, calc(100vw - 28px));
  pointer-events: none;
  transform: translateX(-50%);
}

.jr-toast {
  display: flex;
  align-items: center;
  gap: 10px;
  min-height: 48px;
  padding: 11px 14px;
  border: 1px solid var(--jr-line);
  border-radius: var(--jr-radius-md);
  background: var(--jr-glass-high);
  color: var(--jr-text);
  box-shadow: var(--jr-shadow-2), var(--jr-inner-highlight);
  backdrop-filter: blur(var(--jr-blur-md)) saturate(1.15);
  -webkit-backdrop-filter: blur(var(--jr-blur-md)) saturate(1.15);
  animation: jr-toast-in var(--jr-duration-slow) var(--jr-ease-spring) both;
}

.jr-toast.is-leaving {
  animation: jr-toast-out var(--jr-duration-base) var(--jr-ease-standard) both;
}

.jr-toast-dot {
  width: 8px;
  height: 8px;
  flex: 0 0 auto;
  border-radius: 50%;
  background: var(--jr-brand-500);
  box-shadow: 0 0 0 5px rgba(var(--jr-brand-rgb), .12);
}

@keyframes jr-toast-in {
  from { opacity: 0; transform: translateY(-10px) scale(.97); }
  to { opacity: 1; transform: none; }
}

@keyframes jr-toast-out {
  to { opacity: 0; transform: translateY(-8px) scale(.98); }
}

@media (prefers-reduced-motion: reduce) {
  .jr-toast,
  .jr-toast.is-leaving {
    animation: none;
  }
}

@media (prefers-reduced-transparency: reduce) {
  .jr-glass,
  .jr-theme-toggle,
  .jr-toast {
    background: var(--jr-bg-elevated);
    backdrop-filter: none;
    -webkit-backdrop-filter: none;
  }
}