/* ==================================================================
   Casium — base layer
   tokens · reset · primitives shared by every page
   ================================================================== */

:root {
  /* surfaces */
  --bg:            #0f0f0f;
  --bg-2:          #121212;
  --surface:       #1e1e1e;
  --surface-2:     #262626;
  --surface-3:     #2c2c2c;
  --line:          #333333;
  --line-2:        #454545;
  --line-3:        #555555;

  /* ink */
  --ink:           #ffffff;
  --ink-2:         #bbbbbb;
  --ink-3:         #aaaaaa;
  --ink-4:         #666666;

  /* signal */
  --ember:         #ff5c2b;
  --ember-2:       #ff8256;
  --ember-ink:     #1a0a05;
  --ember-glow:    rgba(255, 92, 43, 0.14);
  --mint:          #46c98c;
  --amber:         #dfa43a;
  --crimson:       #e5484d;
  --sky:           #7fb2e8;

  /* metrics */
  --r-sm:          3px;
  --r-md:          8px;
  --r-lg:          10px;
  --header-h:      60px;

  --sans: "Work Sans", "IBM Plex Sans", ui-sans-serif, system-ui, -apple-system, "Segoe UI", sans-serif;
  --cond: "IBM Plex Sans Condensed", "IBM Plex Sans", ui-sans-serif, system-ui, sans-serif;
  --mono: "IBM Plex Mono", ui-monospace, SFMono-Regular, "SF Mono", Menlo, Consolas, monospace;
  --disp: "Archivo", "IBM Plex Sans", ui-sans-serif, system-ui, sans-serif;

  --ease: cubic-bezier(0.22, 0.61, 0.36, 1);
}

/* ------------------------------------------------------------------ reset */

*, *::before, *::after { box-sizing: border-box; }

html {
  -webkit-text-size-adjust: 100%;
  scroll-behavior: smooth;
  scroll-padding-top: calc(var(--header-h) + 20px);
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: var(--sans);
  font-size: 16px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

img, svg { display: block; max-width: 100%; }
button, input, select, textarea { font: inherit; color: inherit; }
a { color: inherit; text-decoration: none; }
ul, ol { margin: 0; padding: 0; list-style: none; }
h1, h2, h3, h4, p, figure, blockquote { margin: 0; }
hr { border: 0; border-top: 1px solid var(--line); margin: 0; }
table { border-collapse: collapse; width: 100%; }

::selection { background: var(--ember); color: var(--ember-ink); }

:focus-visible {
  outline: 2px solid var(--ember);
  outline-offset: 2px;
  border-radius: 2px;
}

* { scrollbar-width: thin; scrollbar-color: var(--line-2) transparent; }
*::-webkit-scrollbar { width: 10px; height: 10px; }
*::-webkit-scrollbar-track { background: transparent; }
*::-webkit-scrollbar-thumb {
  background: var(--line-2);
  border: 3px solid var(--bg);
  border-radius: 99px;
}
*::-webkit-scrollbar-thumb:hover { background: var(--line-3); }

.skip {
  position: absolute;
  left: -9999px;
  top: 0;
  z-index: 100;
  background: var(--ember);
  color: var(--ember-ink);
  padding: 10px 16px;
  font: 600 14px/1 var(--cond);
}
.skip:focus { left: 12px; top: 12px; }

.sr-only {
  position: absolute; width: 1px; height: 1px;
  padding: 0; margin: -1px; overflow: hidden;
  clip: rect(0 0 0 0); white-space: nowrap; border: 0;
}

.mono { font-family: var(--mono); }

/* ------------------------------------------------------------------ brand */

.brand { display: inline-flex; align-items: center; gap: 9px; flex: none; }
.brand .mark { width: 22px; height: 22px; flex: none; color: var(--ink); }
.brand-name {
  font-family: var(--disp);
  font-weight: 700;
  font-size: 16px;
  letter-spacing: 0.13em;
  text-transform: uppercase;
  line-height: 1;
}

/* ------------------------------------------------------------------ buttons */

.btn {
  --btn-bg: transparent;
  --btn-line: var(--line-2);
  --btn-ink: var(--ink);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 9px;
  height: 44px;
  padding: 0 20px;
  border: 1px solid var(--btn-line);
  border-radius: 5px;
  background: var(--btn-bg);
  color: var(--btn-ink);
  font: 700 13.5px/1 var(--sans);
  letter-spacing: 0.01em;
  cursor: pointer;
  white-space: nowrap;
  transition: background 0.15s var(--ease), border-color 0.15s var(--ease),
              color 0.15s var(--ease), transform 0.15s var(--ease);
}
.btn:hover { background: var(--surface-2); border-color: var(--line-3); }
.btn:active { transform: translateY(1px); }
.btn[disabled], .btn[aria-disabled="true"] { opacity: 0.45; cursor: not-allowed; }
.btn svg { width: 15px; height: 15px; flex: none; }

.btn-primary {
  --btn-bg: #f2f3f5;
  --btn-line: #f2f3f5;
  --btn-ink: #0a0b0c;
}
.btn-primary:hover { --btn-bg: #ffffff; --btn-line: #ffffff; }

.btn-lg { height: 48px; padding: 0 26px; font-size: 14px; }
.btn-sm { height: 32px; padding: 0 14px; font-size: 12px; }
.btn-ghost { --btn-bg: transparent; --btn-line: var(--line-2); --btn-ink: var(--ink-2); }
.btn-ghost:hover { --btn-ink: var(--ink); }
.btn-danger:hover { --btn-bg: rgba(229, 72, 77, 0.12); --btn-line: rgba(229, 72, 77, 0.5); --btn-ink: #ff8f92; }
.btn-block { width: 100%; }

.icon-btn {
  width: 30px; height: 30px;
  display: grid; place-items: center;
  border: 1px solid var(--line);
  border-radius: var(--r-sm);
  background: var(--surface-2);
  color: var(--ink-3);
  cursor: pointer;
  transition: color 0.15s var(--ease), border-color 0.15s var(--ease), background 0.15s var(--ease);
}
.icon-btn:hover { color: var(--ink); border-color: var(--line-3); background: var(--surface-3); }
.icon-btn svg { width: 14px; height: 14px; }

/* ------------------------------------------------------------------ chips & pills */

.chip {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  height: 26px;
  padding: 0 10px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: var(--surface);
  font-family: var(--mono);
  font-size: 10.5px;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--ink-2);
}
.chip .dot {
  width: 6px; height: 6px; border-radius: 99px;
  background: var(--mint);
  box-shadow: 0 0 0 3px rgba(70, 201, 140, 0.14);
  flex: none;
}

.tag {
  display: inline-block;
  padding: 2px 7px;
  border: 1px solid var(--line-2);
  border-radius: var(--r-sm);
  background: var(--surface-2);
  font-family: var(--mono);
  font-size: 10.5px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--ink-3);
}

.pill {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 3px 9px 3px 7px;
  border-radius: 999px;
  font: 600 11px/1.4 var(--cond);
  letter-spacing: 0.07em;
  text-transform: uppercase;
  border: 1px solid transparent;
  white-space: nowrap;
}
.pill::before { content: ""; width: 5px; height: 5px; border-radius: 99px; background: currentColor; }
.pill-ok      { color: var(--mint);    background: rgba(70, 201, 140, 0.10);  border-color: rgba(70, 201, 140, 0.26); }
.pill-warn    { color: var(--amber);   background: rgba(223, 164, 58, 0.10);  border-color: rgba(223, 164, 58, 0.26); }
.pill-bad     { color: var(--crimson); background: rgba(229, 72, 77, 0.10);   border-color: rgba(229, 72, 77, 0.28); }
.pill-neutral { color: var(--ink-3);   background: rgba(255, 255, 255, 0.04); border-color: var(--line-2); }
.pill-life    { color: var(--sky);     background: rgba(127, 178, 232, 0.10); border-color: rgba(127, 178, 232, 0.26); }

/* ------------------------------------------------------------------ forms */

.field { display: grid; gap: 7px; }
.field > label, .label {
  font: 500 11.5px/1 var(--mono);
  letter-spacing: 0.13em;
  text-transform: uppercase;
  color: var(--ink-3);
}
.input, .select {
  width: 100%;
  height: 42px;
  padding: 0 12px;
  border: 1px solid var(--line-2);
  border-radius: 5px;
  background: var(--bg);
  color: var(--ink);
  font-size: 14px;
  transition: border-color 0.15s var(--ease), background 0.15s var(--ease), box-shadow 0.15s var(--ease);
}
.input::placeholder { color: var(--ink-4); }
.input:hover, .select:hover { border-color: var(--line-3); }
.input:focus, .select:focus {
  outline: none;
  border-color: var(--ember);
  box-shadow: 0 0 0 3px var(--ember-glow);
  background: var(--bg);
}
.input[readonly] { color: var(--ink-2); background: var(--surface); cursor: default; }
.input[readonly]:focus { border-color: var(--line-3); box-shadow: none; }
.input-mono { font-family: var(--mono); font-size: 13.5px; }
.input[aria-invalid="true"] { border-color: var(--crimson); box-shadow: 0 0 0 3px rgba(229, 72, 77, 0.14); }

.select {
  appearance: none;
  padding-right: 34px;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8' viewBox='0 0 12 8'%3E%3Cpath d='M1 1.5 6 6.5 11 1.5' fill='none' stroke='%23767c86' stroke-width='1.6' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 12px center;
  cursor: pointer;
}

.hint { font-size: 12.5px; color: var(--ink-3); line-height: 1.5; }
.error-text { font-size: 12.5px; color: #ff8f92; line-height: 1.5; }

/* ------------------------------------------------------------------ motion */

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after {
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.001ms !important;
  }
}