/* MemoryZone design tokens — see mmz-brand-design guideline */
:root {
  --mz-green-900: #063a21; --mz-green-800: #085e37; --mz-green-700: #0a804a;
  --mz-green-600: #0f9557; --mz-green-500: #1bab68; --mz-green-300: #86d6ac;
  --mz-green-200: #bfe8d2; --mz-green-100: #e3f5eb; --mz-green-50: #f2faf6;
  --mz-lime-900: #47601f; --mz-lime-800: #648a2c; --mz-lime-700: #7ba63b;
  --mz-lime-600: #97c354; --mz-lime-200: #e4f0d3; --mz-lime-100: #f2f8e8;
  --mz-ink-900: #0d1f16; --mz-ink-800: #182b22; --mz-ink-700: #33453c;
  --mz-ink-600: #55655c; --mz-ink-500: #77857c; --mz-ink-400: #9aa6a0;
  --mz-ink-300: #c2cac5; --mz-ink-200: #dfe4e1; --mz-ink-100: #eef1ef;
  --mz-ink-50: #f7f8f7; --mz-white: #ffffff;
  --mz-success: #0a804a; --mz-info: #2563c9; --mz-warning: #e0900a; --mz-danger: #d83a2f;
  --gradient-brand: linear-gradient(135deg, #0A804A 0%, #97C354 100%);
  --shadow-sm: 0 1px 2px rgba(13, 31, 22, .06), 0 1px 3px rgba(13, 31, 22, .08);
  --shadow-lg: 0 8px 24px rgba(13, 31, 22, .12);
  --focus-ring: 0 0 0 3px rgba(15, 149, 87, .55);
  --radius: 8px;
  --font: "Bricolage Grotesque", system-ui, -apple-system, "Segoe UI", Arial, sans-serif;
  --mono: ui-monospace, Menlo, Consolas, monospace;

  /* Semantic aliases used by the pages */
  --bg: var(--mz-white);
  --panel: var(--mz-white);
  --panel-2: var(--mz-ink-50);
  --line: var(--mz-ink-200);
  --text: var(--mz-ink-800);
  --muted: var(--mz-ink-500);
  --accent: var(--mz-green-700);
  --ok: var(--mz-success);
  --warn: var(--mz-warning);
  --bad: var(--mz-danger);
}
* { box-sizing: border-box; }
[hidden] { display: none !important; }
html, body { margin: 0; }
body {
  background: var(--bg);
  color: var(--text);
  font: 400 16px/1.6 var(--font);
  min-height: 100vh;
  display: flex; flex-direction: column;
}
a { color: var(--mz-green-700); text-decoration: none; }
a:hover { color: var(--mz-green-800); }
:focus-visible { outline: none; box-shadow: var(--focus-ring); border-radius: 6px; }
svg.lucide { width: 20px; height: 20px; stroke-width: 2; flex: none; }

/* Wordmark */
.mz-wordmark {
  display: inline-flex; flex-direction: column; line-height: 1; color: var(--mz-lime-600);
  font-weight: 800; font-size: 22px; letter-spacing: -.5px;
}
.mz-wordmark .m, .mz-wordmark .zone { color: var(--mz-green-700); }
.mz-wordmark .by {
  font-size: 9px; font-weight: 600; letter-spacing: 1.6px; color: var(--mz-ink-500);
  margin-top: 4px; align-self: flex-end;
}

/* Top bar */
.topbar {
  display: flex; align-items: center; gap: 32px; flex-wrap: wrap;
  padding: 12px 24px; background: var(--mz-white); border-bottom: 1px solid var(--line);
  position: sticky; top: 0; z-index: 10;
}
.topbar .tool-name {
  font-size: 14px; color: var(--mz-ink-600); padding-left: 16px; border-left: 1px solid var(--line);
  margin-left: -16px;
}
.nav { display: flex; gap: 4px; flex-wrap: wrap; margin-left: auto; }
.nav a {
  display: inline-flex; align-items: center; gap: 8px;
  color: var(--mz-ink-700); padding: 8px 12px; border-radius: var(--radius); font-weight: 500; font-size: 15px;
}
.nav a svg.lucide { width: 18px; height: 18px; }
.nav a:hover { color: var(--mz-green-800); background: var(--mz-green-50); }
.nav a.active { color: var(--mz-green-700); background: var(--mz-green-100); font-weight: 600; }

main { width: 100%; max-width: 1200px; margin: 0 auto; padding: 32px 24px 48px; flex: 1; }
h1 { font-size: 32px; font-weight: 600; line-height: 1.25; margin: 0 0 8px; color: var(--mz-ink-900); }
.sub { color: var(--mz-ink-600); margin: 0 0 24px; font-size: 18px; }

.footer {
  border-top: 1px solid var(--line); padding: 16px 24px; color: var(--muted); font-size: 14px;
  display: flex; justify-content: space-between; gap: 16px; flex-wrap: wrap;
}

/* Card */
.card {
  background: var(--panel); border: 1px solid var(--line); border-radius: var(--radius);
  padding: 24px; margin-bottom: 24px; box-shadow: var(--shadow-sm);
}
.card h2 {
  font-size: 20px; font-weight: 600; line-height: 1.4; margin: 0 0 16px; color: var(--mz-ink-900);
  display: flex; align-items: center; gap: 12px; flex-wrap: wrap;
}
.card h2 > svg.lucide { color: var(--mz-lime-700); width: 24px; height: 24px; }
.grid { display: grid; gap: 24px; }
.grid > .card { margin-bottom: 0; }
.grid + .card, .card + .grid { margin-top: 0; }
.grid { margin-bottom: 24px; }
.grid-2 { grid-template-columns: repeat(auto-fit, minmax(320px, 1fr)); }
.grid-4 { grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); }
.grid-3 { grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); }

/* Button */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  height: 40px; padding: 0 20px; border-radius: var(--radius);
  background: var(--mz-white); color: var(--mz-ink-800); border: 1px solid var(--mz-ink-300);
  font: 600 15px/1 var(--font); cursor: pointer; transition: background .15s, border-color .15s, color .15s;
}
.btn svg.lucide { width: 18px; height: 18px; }
.btn:hover:not(:disabled) { border-color: var(--mz-green-700); color: var(--mz-green-700); }
.btn:disabled { opacity: .45; cursor: not-allowed; }
.btn.primary { background: var(--mz-green-700); border-color: var(--mz-green-700); color: #fff; }
.btn.primary:hover:not(:disabled) { background: var(--mz-green-800); border-color: var(--mz-green-800); color: #fff; }
.btn.primary:active:not(:disabled) { background: var(--mz-green-900); }
.btn.danger { background: var(--mz-danger); border-color: var(--mz-danger); color: #fff; }
.btn.danger:hover:not(:disabled) { background: #b92f25; border-color: #b92f25; color: #fff; }
.btn.lg { height: 48px; padding: 0 32px; font-size: 16px; }
.row { display: flex; gap: 12px; flex-wrap: wrap; align-items: center; }

/* Form */
select, input[type="range"] { font: inherit; }
select {
  height: 40px; background: var(--mz-white); color: var(--mz-ink-800); border: 1px solid var(--mz-ink-300);
  padding: 0 36px 0 12px; border-radius: var(--radius); max-width: 100%; cursor: pointer;
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' viewBox='0 0 24 24' fill='none' stroke='%2355655c' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='m6 9 6 6 6-6'/%3E%3C/svg%3E");
  background-repeat: no-repeat; background-position: right 12px center;
}
select:focus { border-color: var(--mz-green-700); }
input[type="range"] { accent-color: var(--mz-green-700); }
input[type="checkbox"] { accent-color: var(--mz-green-700); width: 18px; height: 18px; }
label.muted, .row > .muted { font-size: 14px; }

/* Alert */
.note {
  display: flex; gap: 12px; align-items: flex-start;
  background: #fdf4e3; border: 1px solid #f3d49b; color: #7a4d03;
  padding: 12px 16px; border-radius: var(--radius); margin-bottom: 24px; font-size: 15px;
}
.note svg.lucide { color: var(--mz-warning); margin-top: 2px; }

.muted { color: var(--muted); }
.stat { font-variant-numeric: tabular-nums; }
kbd {
  font: 600 13px/1 var(--mono); padding: 3px 7px; border: 1px solid var(--mz-ink-300);
  border-bottom-width: 2px; border-radius: 4px; background: var(--mz-white); color: var(--mz-ink-800);
}

/* Badge (pill) */
.pill {
  display: inline-flex; align-items: center; gap: 4px; padding: 2px 10px; border-radius: 9999px;
  font-size: 13px; font-weight: 600; line-height: 1.5;
  background: var(--mz-ink-100); color: var(--mz-ink-600);
}
.pill.ok { background: var(--mz-green-100); color: var(--mz-green-800); }
.pill.bad { background: #fbe7e5; color: #a8281f; }
.pill.live { background: var(--mz-lime-200); color: var(--mz-lime-900); }

.progress { height: 8px; background: var(--mz-ink-100); border-radius: 9999px; overflow: hidden; }
.progress > div { height: 100%; width: 0; background: var(--mz-green-700); transition: width .2s; }

/* Stat tiles */
.stat-tile { background: var(--mz-ink-50); border: 1px solid var(--mz-ink-100); border-radius: var(--radius); padding: 12px 16px; }
.stat-tile > span { font-size: 12px; letter-spacing: .5px; color: var(--muted); display: block; line-height: 1.4; }
.stat-tile b { display: block; font-size: 24px; font-weight: 600; line-height: 1.35; color: var(--mz-ink-900); font-variant-numeric: tabular-nums; }

/* Home */
.hero {
  background: var(--gradient-brand); color: #fff; border-radius: var(--radius);
  padding: 48px; margin-bottom: 32px;
}
.hero .eyebrow { font-size: 12px; font-weight: 600; letter-spacing: 1.5px; text-transform: uppercase; opacity: .9; }
.hero h1 { color: #fff; font-size: 48px; font-weight: 700; line-height: 1.15; letter-spacing: -.5px; margin: 8px 0 12px; }
.hero p { margin: 0; font-size: 18px; max-width: 640px; color: rgba(255,255,255,.92); }
.tile { display: flex; flex-direction: column; gap: 8px; color: var(--text); transition: box-shadow .2s, transform .2s; }
.tile:hover { box-shadow: var(--shadow-lg); transform: translateY(-3px); color: var(--text); }
.tile .ico {
  width: 48px; height: 48px; border-radius: var(--radius); background: var(--mz-lime-100);
  color: var(--mz-lime-800); display: flex; align-items: center; justify-content: center;
}
.tile .ico svg.lucide { width: 24px; height: 24px; }
.tile h2 { margin: 8px 0 0; }
.tile p { color: var(--mz-ink-600); margin: 0; font-size: 15px; flex: 1; }
.tile .go { display: inline-flex; align-items: center; gap: 4px; color: var(--mz-green-700); font-weight: 600; font-size: 15px; }
.tile .go svg.lucide { width: 18px; height: 18px; }
ul.tips { margin: 0; padding-left: 20px; color: var(--mz-ink-700); display: grid; gap: 8px; }

@media (max-width: 720px) {
  .topbar { padding: 12px 16px; gap: 12px; }
  .nav { margin-left: 0; }
  .topbar .tool-name { display: none; }
  main { padding: 24px 16px 48px; }
  .hero { padding: 32px 24px; }
  .hero h1 { font-size: 32px; }
}
@media (prefers-reduced-motion: reduce) {
  * { transition: none !important; }
}