/* LoadLeader Design System — Shared Tokens v3
   Light mode is DEFAULT. Dark applies only via [data-theme="dark"] on <html>.
   Theme toggle script lives in /tokens-theme.js (loaded by every public page).
   ============================================================= */

:root {
  /* SURFACES — light by default */
  --bg:        #FFFFFF;
  --surface:   #FAFAFA;
  --surface-2: #F4F4F5;
  --surface-3: #E4E4E7;

  /* BORDERS */
  --line:         rgba(0,0,0,0.08);
  --line-strong:  rgba(0,0,0,0.14);
  --line-hover:   rgba(255,205,17,0.55);

  /* TEXT */
  --text:   #09090B;
  --text-2: #52525B;
  --text-3: #71717A;

  /* ACCENT — CAT EQUIPMENT YELLOW (theme-invariant brand) */
  --accent:        #FFCD11;
  --accent-hot:    #FFE066;
  --accent-dim:    #C99E00;
  --accent-text:   #0A0A0A;
  --accent-bg:     rgba(255,205,17,0.16);
  --accent-border: rgba(255,205,17,0.45);

  /* STATUS */
  --ok:        #16A34A;
  --ok-bg:     rgba(22,163,74,0.10);
  --ok-border: rgba(22,163,74,0.30);
  --warn:      #F97316;
  --warn-bg:   rgba(249,115,22,0.10);
  --warn-border:rgba(249,115,22,0.30);
  --bad:       #DC2626;
  --bad-bg:    rgba(220,38,38,0.08);
  --bad-border:rgba(220,38,38,0.28);
  --info:      #2563EB;
  --info-bg:   rgba(37,99,235,0.08);
  --info-border:rgba(37,99,235,0.24);

  /* TYPOGRAPHY */
  --font-display: 'Syne', 'Impact', sans-serif;
  --font-body:    'Inter', -apple-system, system-ui, sans-serif;

  /* SHAPE */
  --r-card:  6px;
  --r-btn:   6px;
  --r-chip:  4px;
  --r-input: 6px;

  /* MOTION */
  --ease:       cubic-bezier(0.4,0,0.2,1);
  --dur-hover:  120ms;
  --dur-modal:  200ms;
  --shadow-sm:  0 1px 3px rgba(0,0,0,0.08);
  --shadow-pop: 0 8px 24px rgba(0,0,0,0.10);

  /* FOCUS RING HALO — adapts to surface luminance */
  --focus-halo: rgba(255,255,255,0.6);
}

/* DARK MODE — opt-in via <html data-theme="dark"> (set by theme toggle JS) */
[data-theme="dark"] {
  --bg:        #0A0A0A;
  --surface:   #141414;
  --surface-2: #1C1C1C;
  --surface-3: #242424;

  --line:         rgba(255,255,255,0.06);
  --line-strong:  rgba(255,255,255,0.10);
  --line-hover:   rgba(255,205,17,0.40);

  --text:   #F5F5F5;
  --text-2: #A3A3A3;
  --text-3: #737373;

  --accent-bg:     rgba(255,205,17,0.08);
  --accent-border: rgba(255,205,17,0.32);

  --ok:        #4ADE80;
  --ok-bg:     rgba(74,222,128,0.10);
  --ok-border: rgba(74,222,128,0.28);
  --warn:      #FF8A00;
  --warn-bg:   rgba(255,138,0,0.10);
  --warn-border:rgba(255,138,0,0.30);
  --bad:       #FF4444;
  --bad-bg:    rgba(255,68,68,0.10);
  --bad-border:rgba(255,68,68,0.30);
  --info:      #60A5FA;
  --info-bg:   rgba(96,165,250,0.08);
  --info-border:rgba(96,165,250,0.24);

  --accent-text:   var(--accent); /* yellow is readable on dark surfaces */
  --shadow-sm:  0 2px 8px rgba(0,0,0,0.35);
  --shadow-pop: 0 8px 24px rgba(0,0,0,0.50);

  --focus-halo: rgba(10,10,10,0.6);
}

/* BASE */
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0; padding: 0;
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
  transition: background-color 200ms var(--ease), color 200ms var(--ease);
}

/* KEYFRAMES */
@keyframes fadeUp   { from { opacity:0; transform:translateY(16px); } to { opacity:1; transform:translateY(0); } }
@keyframes spin     { to { transform:rotate(360deg); } }
@keyframes blink    { 0%,100% { opacity:1; } 50% { opacity:.3; } }
@keyframes ticker   { from { transform:translateX(0); } to { transform:translateX(-50%); } }
@keyframes shimmer  { 0% { background-position:-200% 0; } 100% { background-position:200% 0; } }

/* TYPE PRIMITIVES */
.h-display {
  font-family: var(--font-display);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  line-height: 1;
  margin: 0;
}
.h-num {
  font-family: var(--font-display);
  font-weight: 700;
  font-variant-numeric: tabular-nums;
  letter-spacing: 0.02em;
}
.eyebrow {
  font-family: var(--font-display);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  font-size: 11px;
  color: var(--text-2);
}

/* SCROLLBARS */
html { scrollbar-color: var(--line-strong) transparent; scrollbar-width: thin; }
::-webkit-scrollbar { width:8px; height:8px; }
::-webkit-scrollbar-track { background:transparent; }
::-webkit-scrollbar-thumb { background:var(--line-strong); border-radius:0; }
::-webkit-scrollbar-thumb:hover { background:var(--text-3); }

/* SELECTION — yellow at low alpha, black text */
::selection { background: rgba(255,205,17,0.35); color: #0A0A0A; }
::-moz-selection { background: rgba(255,205,17,0.35); color: #0A0A0A; }

/* FOCUS — two-color ring, visible on yellow + any surface */
:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
  box-shadow: 0 0 0 4px var(--focus-halo);
}

/* HEADLINE BALANCE — tidy line breaks */
h1, h2, h3 { text-wrap: balance; }

/* THEME TOGGLE BUTTON — drop into nav of any page */
.theme-toggle {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  border-radius: var(--r-btn);
  background: transparent;
  border: 1px solid var(--line-strong);
  color: var(--text-2);
  cursor: pointer;
  transition: border-color var(--dur-hover) var(--ease), color var(--dur-hover) var(--ease), background-color var(--dur-hover) var(--ease);
}
.theme-toggle:hover { border-color: var(--accent); color: var(--accent); }
.theme-toggle svg { width: 18px; height: 18px; display: block; }
.theme-toggle .icon-sun { display: none; }
.theme-toggle .icon-moon { display: block; }
[data-theme="dark"] .theme-toggle .icon-sun { display: block; }
[data-theme="dark"] .theme-toggle .icon-moon { display: none; }

/* REDUCED MOTION — global respect */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
}
