/* ============================================================
   Boolland Sample Design System (scoped to .bd-root)

   This file defines the actual UI system you'd ship in your
   products. It demonstrates the responsive root-size approach
   and uses CSS custom properties so any preview that wraps a
   .bd-root can simulate a specific breakpoint by overriding
   --bd-root-size (or `font-size` directly).

   In your real product:
     :root { font-size: 1vw; }
     @media (max-width: 1279px) { :root { font-size: 1.6vw; } }
     @media (max-width: 767px)  { :root { font-size: 4vw; } }

   Then use rem everywhere. Inside this guideline we use `em`
   under a .bd-root scope so previews can be set to any pixel
   size — but the value semantics are identical to rem.
   ============================================================ */

.bd-root {
  /* tokens — Boolland brand */
  --bd-ink: #000945;
  --bd-ink-2: #0a1657;
  --bd-blue: #3645d3;
  --bd-signal: #5b6cff;
  --bd-paper: #fafaf7;
  --bd-paper-2: #f1f1ec;
  --bd-grey: #d8d8d8;
  --bd-line: #e6e6e0;
  --bd-muted: #6b6b65;

  --bd-success: #0a8a4f;
  --bd-warning: #c87800;
  --bd-danger: #c43a3a;

  /* spacing scale (em → rem in production) */
  --bd-s-1: 0.25em;   /* 4 */
  --bd-s-2: 0.5em;    /* 8 */
  --bd-s-3: 0.75em;   /* 12 */
  --bd-s-4: 1em;      /* 16 */
  --bd-s-5: 1.5em;    /* 24 */
  --bd-s-6: 2em;      /* 32 */
  --bd-s-7: 3em;      /* 48 */
  --bd-s-8: 4em;      /* 64 */

  /* radii */
  --bd-r-sm: 0.375em;
  --bd-r-md: 0.625em;
  --bd-r-lg: 0.875em;
  --bd-r-xl: 1.375em;
  --bd-r-full: 999px;

  /* shadows */
  --bd-shadow-sm: 0 0.0625em 0.125em rgba(0,9,69,0.06);
  --bd-shadow-md: 0 0.375em 1.125em -0.375em rgba(0,9,69,0.18);
  --bd-shadow-lg: 0 1.875em 3.75em -1.25em rgba(0,9,69,0.30);

  /* glass tokens */
  --bd-glass-light-bg: rgba(250, 250, 247, 0.55);
  --bd-glass-light-border: rgba(250, 250, 247, 0.55);
  --bd-glass-light-text: var(--bd-ink);
  --bd-glass-dark-bg: rgba(0, 9, 69, 0.42);
  --bd-glass-dark-border: rgba(250, 250, 247, 0.16);
  --bd-glass-dark-text: var(--bd-paper);
  --bd-glass-blur: 18px;
  --bd-glass-saturate: 180%;
  --bd-glass-shadow: 0 1.25em 2.5em -1em rgba(0, 9, 69, 0.28);

  /* root anchor — this controls all em values inside */
  font-family: "Plus Jakarta Sans", system-ui, sans-serif;
  color: var(--bd-ink);
  font-size: 16px; /* default; previews override this */
  line-height: 1.5;
}

/* Type ramp (in rem in your product — em here so it scales with .bd-root) */
.bd-root .bd-h1 { font-size: 3rem;     line-height: 1.05; letter-spacing: -0.035em; font-weight: 800; margin: 0; }
.bd-root .bd-h2 { font-size: 2.25rem;  line-height: 1.1;  letter-spacing: -0.03em;  font-weight: 700; margin: 0; }
.bd-root .bd-h3 { font-size: 1.75rem;  line-height: 1.15; letter-spacing: -0.02em;  font-weight: 700; margin: 0; }
.bd-root .bd-h4 { font-size: 1.375rem; line-height: 1.25; letter-spacing: -0.015em; font-weight: 700; margin: 0; }
.bd-root .bd-h5 { font-size: 1.125rem; line-height: 1.35; letter-spacing: -0.01em;  font-weight: 600; margin: 0; }
.bd-root .bd-body { font-size: 1rem;   line-height: 1.55; font-weight: 400; }
.bd-root .bd-small { font-size: 0.875rem; line-height: 1.5; font-weight: 400; color: var(--bd-muted); }
.bd-root .bd-eyebrow {
  font-family: "Roboto Mono", monospace;
  font-size: 0.75rem;
  font-weight: 500;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--bd-muted);
}

/* ===== Buttons ===== */
.bd-root .bd-btn {
  --p-y: 0.625em;
  --p-x: 1.125em;
  --fs: 0.875rem;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5em;
  padding: var(--p-y) var(--p-x);
  font-size: var(--fs);
  font-family: inherit;
  font-weight: 600;
  letter-spacing: -0.005em;
  line-height: 1;
  border-radius: var(--bd-r-full);
  border: 1px solid transparent;
  cursor: pointer;
  transition: background 0.15s ease, color 0.15s ease, transform 0.05s ease;
  user-select: none;
  text-decoration: none;
  white-space: nowrap;
}
.bd-root .bd-btn:active { transform: translateY(1px); }
.bd-root .bd-btn:focus-visible {
  outline: 2px solid var(--bd-signal);
  outline-offset: 2px;
}
.bd-root .bd-btn.sm { --p-y: 0.4375em; --p-x: 0.875em; --fs: 0.8125rem; }
.bd-root .bd-btn.lg { --p-y: 0.875em;  --p-x: 1.5em;   --fs: 1rem; }

/* Variants */
.bd-root .bd-btn.primary { background: var(--bd-ink); color: var(--bd-paper); }
.bd-root .bd-btn.primary:hover { background: var(--bd-blue); }
.bd-root .bd-btn.secondary { background: var(--bd-blue); color: var(--bd-paper); }
.bd-root .bd-btn.secondary:hover { background: var(--bd-signal); }
.bd-root .bd-btn.tertiary {
  background: var(--bd-paper-2);
  color: var(--bd-ink);
  border-color: var(--bd-line);
}
.bd-root .bd-btn.tertiary:hover { background: var(--bd-grey); }
.bd-root .bd-btn.ghost { background: transparent; color: var(--bd-ink); }
.bd-root .bd-btn.ghost:hover { background: var(--bd-paper-2); }
.bd-root .bd-btn.outline {
  background: transparent;
  color: var(--bd-ink);
  border-color: var(--bd-ink);
}
.bd-root .bd-btn.outline:hover { background: var(--bd-ink); color: var(--bd-paper); }
.bd-root .bd-btn.danger { background: var(--bd-danger); color: var(--bd-paper); }
.bd-root .bd-btn.danger:hover { filter: brightness(1.12); }
.bd-root .bd-btn[disabled],
.bd-root .bd-btn.disabled { opacity: 0.4; pointer-events: none; }

/* ===== Form ===== */
.bd-root .bd-field { display: flex; flex-direction: column; gap: 0.375em; }
.bd-root .bd-label {
  font-size: 0.8125rem;
  font-weight: 500;
  color: var(--bd-ink);
}
.bd-root .bd-help {
  font-size: 0.75rem;
  color: var(--bd-muted);
  margin-top: 0.125em;
}
.bd-root .bd-input,
.bd-root .bd-select,
.bd-root .bd-textarea {
  appearance: none;
  -webkit-appearance: none;
  width: 100%;
  font: inherit;
  font-size: 0.9375rem;
  padding: 0.6875em 0.9375em;
  background: var(--bd-paper);
  color: var(--bd-ink);
  border: 1px solid var(--bd-line);
  border-radius: var(--bd-r-md);
  outline: none;
  transition: border-color 0.15s ease, box-shadow 0.15s ease;
  line-height: 1.35;
}
.bd-root .bd-textarea { min-height: 6em; resize: vertical; line-height: 1.5; }
.bd-root .bd-input:hover,
.bd-root .bd-select:hover,
.bd-root .bd-textarea:hover { border-color: var(--bd-grey); }
.bd-root .bd-input:focus,
.bd-root .bd-select:focus,
.bd-root .bd-textarea:focus {
  border-color: var(--bd-blue);
  box-shadow: 0 0 0 0.1875em rgba(54,69,211,0.15);
}
.bd-root .bd-input[aria-invalid="true"],
.bd-root .bd-input.invalid {
  border-color: var(--bd-danger);
}
.bd-root .bd-input::placeholder,
.bd-root .bd-textarea::placeholder { color: var(--bd-muted); opacity: 0.7; }

.bd-root .bd-select {
  background-image: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16' fill='%23000945'><path d='M8 11L3 6h10z'/></svg>");
  background-repeat: no-repeat;
  background-position: right 0.875em center;
  background-size: 1em;
  padding-right: 2.5em;
}

/* Checkbox / radio */
.bd-root .bd-check {
  display: inline-flex;
  align-items: center;
  gap: 0.5em;
  font-size: 0.9375rem;
  cursor: pointer;
  color: var(--bd-ink);
}
.bd-root .bd-check input {
  appearance: none;
  width: 1.125em;
  height: 1.125em;
  border: 1px solid var(--bd-grey);
  border-radius: var(--bd-r-sm);
  background: var(--bd-paper);
  display: grid;
  place-items: center;
  cursor: pointer;
  transition: background 0.15s ease, border-color 0.15s ease;
}
.bd-root .bd-check input[type="radio"] { border-radius: 50%; }
.bd-root .bd-check input:hover { border-color: var(--bd-blue); }
.bd-root .bd-check input:checked {
  background: var(--bd-ink);
  border-color: var(--bd-ink);
}
.bd-root .bd-check input[type="checkbox"]:checked::after {
  content: "";
  width: 0.5em; height: 0.3em;
  border-left: 2px solid var(--bd-paper);
  border-bottom: 2px solid var(--bd-paper);
  transform: rotate(-45deg) translate(1px, -1px);
}
.bd-root .bd-check input[type="radio"]:checked::after {
  content: "";
  width: 0.4em; height: 0.4em;
  border-radius: 50%;
  background: var(--bd-paper);
}

/* Toggle */
.bd-root .bd-toggle {
  display: inline-flex;
  align-items: center;
  gap: 0.625em;
  font-size: 0.9375rem;
  cursor: pointer;
  color: var(--bd-ink);
}
.bd-root .bd-toggle input { display: none; }
.bd-root .bd-toggle .track {
  width: 2.5em;
  height: 1.375em;
  background: var(--bd-grey);
  border-radius: var(--bd-r-full);
  position: relative;
  transition: background 0.2s ease;
}
.bd-root .bd-toggle .track::after {
  content: "";
  position: absolute;
  top: 0.125em; left: 0.125em;
  width: 1.125em; height: 1.125em;
  background: var(--bd-paper);
  border-radius: 50%;
  box-shadow: 0 1px 2px rgba(0,0,0,0.2);
  transition: transform 0.2s ease;
}
.bd-root .bd-toggle input:checked + .track { background: var(--bd-ink); }
.bd-root .bd-toggle input:checked + .track::after { transform: translateX(1.125em); }

/* ===== Card ===== */
.bd-root .bd-card {
  background: var(--bd-paper);
  border: 1px solid var(--bd-line);
  border-radius: var(--bd-r-lg);
  padding: var(--bd-s-5);
  display: flex;
  flex-direction: column;
  gap: var(--bd-s-3);
}
.bd-root .bd-card.elevated { box-shadow: var(--bd-shadow-md); border-color: transparent; }
.bd-root .bd-card.dark { background: var(--bd-ink); color: var(--bd-paper); border-color: var(--bd-ink); }
.bd-root .bd-card .bd-card-title {
  font-weight: 700;
  font-size: 1.125rem;
  letter-spacing: -0.01em;
}
.bd-root .bd-card .bd-card-meta {
  font-family: "Roboto Mono", monospace;
  font-size: 0.6875rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  opacity: 0.6;
}
.bd-root .bd-card .bd-card-body { font-size: 0.9375rem; line-height: 1.55; opacity: 0.85; }

/* ===== Badge ===== */
.bd-root .bd-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.375em;
  padding: 0.25em 0.625em;
  border-radius: var(--bd-r-full);
  font-family: "Roboto Mono", monospace;
  font-size: 0.6875rem;
  font-weight: 500;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  background: var(--bd-paper-2);
  color: var(--bd-ink);
  border: 1px solid var(--bd-line);
}
.bd-root .bd-badge.success { background: rgba(10,138,79,0.08); color: var(--bd-success); border-color: rgba(10,138,79,0.2); }
.bd-root .bd-badge.warning { background: rgba(200,120,0,0.08);  color: var(--bd-warning); border-color: rgba(200,120,0,0.2); }
.bd-root .bd-badge.danger  { background: rgba(196,58,58,0.08);  color: var(--bd-danger);  border-color: rgba(196,58,58,0.2); }
.bd-root .bd-badge.info    { background: rgba(54,69,211,0.08);  color: var(--bd-blue);    border-color: rgba(54,69,211,0.2); }
.bd-root .bd-badge.dot::before {
  content: "";
  width: 0.4375em;
  height: 0.4375em;
  border-radius: 50%;
  background: currentColor;
}

/* ===== Alert ===== */
.bd-root .bd-alert {
  display: flex;
  gap: 0.75em;
  padding: 0.875em 1em;
  border-radius: var(--bd-r-md);
  font-size: 0.9375rem;
  line-height: 1.5;
  border: 1px solid var(--bd-line);
  background: var(--bd-paper);
}
.bd-root .bd-alert.success { background: rgba(10,138,79,0.06); border-color: rgba(10,138,79,0.25); color: var(--bd-success); }
.bd-root .bd-alert.warning { background: rgba(200,120,0,0.06); border-color: rgba(200,120,0,0.25); color: var(--bd-warning); }
.bd-root .bd-alert.danger  { background: rgba(196,58,58,0.06); border-color: rgba(196,58,58,0.25); color: var(--bd-danger); }
.bd-root .bd-alert.info    { background: rgba(54,69,211,0.06); border-color: rgba(54,69,211,0.25); color: var(--bd-blue); }

/* ===== Top nav ===== */
.bd-root .bd-nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1em 1.25em;
  background: var(--bd-paper);
  border-radius: var(--bd-r-lg);
  border: 1px solid var(--bd-line);
  gap: 1em;
}
.bd-root .bd-nav .links {
  display: flex;
  gap: 1.5em;
  font-size: 0.875rem;
}
.bd-root .bd-nav .links a {
  color: var(--bd-ink);
  text-decoration: none;
  opacity: 0.75;
}
.bd-root .bd-nav .links a:hover { opacity: 1; }
.bd-root .bd-nav .actions { display: flex; gap: 0.5em; align-items: center; }

/* Mobile menu */
.bd-root .bd-burger {
  display: inline-flex;
  flex-direction: column;
  gap: 0.25em;
  width: 1.5em; height: 1.5em;
  justify-content: center;
  align-items: center;
  cursor: pointer;
  border: 1px solid var(--bd-line);
  border-radius: var(--bd-r-sm);
  padding: 0.375em;
  background: var(--bd-paper);
}
.bd-root .bd-burger span {
  display: block;
  width: 100%;
  height: 1.5px;
  background: var(--bd-ink);
}

/* Mark inline */
.bd-root .bd-mark {
  width: 1.75em;
  height: 1.75em;
  display: inline-block;
  vertical-align: middle;
}

/* ===== Glass surface ===== */
.bd-root .bd-glass {
  background: var(--bd-glass-light-bg);
  backdrop-filter: blur(var(--bd-glass-blur)) saturate(var(--bd-glass-saturate));
  -webkit-backdrop-filter: blur(var(--bd-glass-blur)) saturate(var(--bd-glass-saturate));
  border: 1px solid var(--bd-glass-light-border);
  border-radius: var(--bd-r-lg);
  box-shadow: var(--bd-glass-shadow);
  color: var(--bd-glass-light-text);
}
.bd-root .bd-glass.dark {
  background: var(--bd-glass-dark-bg);
  border-color: var(--bd-glass-dark-border);
  color: var(--bd-glass-dark-text);
}
.bd-root .bd-glass.subtle {
  backdrop-filter: blur(10px) saturate(140%);
  -webkit-backdrop-filter: blur(10px) saturate(140%);
}
.bd-root .bd-glass.heavy {
  backdrop-filter: blur(28px) saturate(200%);
  -webkit-backdrop-filter: blur(28px) saturate(200%);
}
.bd-root .bd-glass.pill {
  border-radius: var(--bd-r-full);
}