/* ============================================================
   tools.ranzlappen.com — design tokens, layout, glass cards
   Tokens mirror Ranzlappen/website/assets/css/style.css.
   ============================================================ */

:root {
  /* color */
  --c-bg:           #0b1210;
  --c-bg-alt:       #111b17;
  --c-surface:      #15201b;
  --c-surface-alt:  #1b2924;
  --c-border:       #253830;
  --c-border-light: #1e2f28;
  --c-text:         #dce8e2;
  --c-text-muted:   #7e948a;
  --c-text-faint:   #556b62;
  --c-accent:       #4ade80;
  --c-accent-dim:   #22c55e;
  --c-accent-bg:    rgba(74, 222, 128, 0.08);
  --c-accent-border: rgba(74, 222, 128, 0.20);
  --c-danger:       #f87171;
  --c-warning:      #fbbf24;
  --c-card-shadow:  rgba(0, 0, 0, 0.35);
  --c-bg-rgb:       11, 18, 16;
  --backdrop-opacity: 0.88;

  /* typography */
  --f-body: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Oxygen,
            Ubuntu, Cantarell, "Helvetica Neue", sans-serif;
  --f-heading: var(--f-body);
  --f-mono: "SF Mono", SFMono-Regular, Consolas, "Liberation Mono", Menlo,
            Courier, monospace;

  /* spacing */
  --space-xs:  0.25rem;
  --space-sm:  0.5rem;
  --space-md:  1rem;
  --space-lg:  1.5rem;
  --space-xl:  2rem;
  --space-2xl: 3rem;
  --space-3xl: 4rem;

  /* layout */
  --max-width:       72rem;
  --content-width:   48rem;
  --header-height:   3.75rem;
  --border-radius:    0.5rem;
  --border-radius-sm: 0.25rem;
  --border-radius-lg: 0.75rem;

  /* motion */
  --transition-fast: 0.15s ease;
  --transition-base: 0.25s ease;
  --transition-slow: 0.4s ease;

  /* cursor-tracked vars (set by JS) */
  --mouse-x: 50%;
  --mouse-y: 50%;
}

/* ---------- reset + base ---------- */

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

html {
  scroll-behavior: smooth;
  background: var(--c-bg);
  color-scheme: dark;
}

body {
  margin: 0;
  min-height: 100vh;
  font-family: var(--f-body);
  font-size: 16px;
  line-height: 1.6;
  color: var(--c-text);
  background: var(--c-bg);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: clip;
  max-width: 100%;
}

html {
  overflow-x: clip;
  max-width: 100%;
}

a {
  color: var(--c-accent);
  text-decoration: none;
  transition: color var(--transition-fast);
}

a:hover {
  color: var(--c-accent-dim);
}

h1, h2, h3 {
  font-family: var(--f-heading);
  margin: 0;
  line-height: 1.2;
  font-weight: 600;
  letter-spacing: -0.01em;
}

/* ---------- page shell ---------- */

.page {
  position: relative;
  z-index: 1;
  min-height: 100vh;
  width: 100%;
  max-width: 100%;
  min-width: 0;
  display: flex;
  flex-direction: column;
}

.shell {
  width: 100%;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 var(--space-lg);
  box-sizing: border-box;
  min-width: 0;
}

/* ---------- header ---------- */

.site-header {
  padding: var(--space-xl) 0 var(--space-md);
}

.site-header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-md);
}

.brand {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  font-weight: 600;
  color: var(--c-text);
  letter-spacing: -0.01em;
}

.brand__mark {
  width: 32px;
  height: 32px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.brand__mark img,
.brand__mark svg {
  width: 100%;
  height: 100%;
  object-fit: contain;
  display: block;
}

.brand__name {
  font-size: 0.95rem;
}

.brand__sub {
  color: var(--c-text-faint);
  font-weight: 400;
}

.site-header__meta {
  font-family: var(--f-mono);
  font-size: 0.75rem;
  color: var(--c-text-faint);
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

/* ---------- hero ---------- */

.hero {
  padding: var(--space-2xl) 0 var(--space-xl);
}

.hero__eyebrow {
  display: inline-flex;
  align-items: center;
  gap: var(--space-xs);
  font-family: var(--f-mono);
  font-size: 0.7rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--c-accent);
  padding: 0.3rem 0.7rem;
  border-radius: 999px;
  background: var(--c-accent-bg);
  border: 1px solid var(--c-accent-border);
}

.hero__title {
  font-size: clamp(2.25rem, 5vw + 1rem, 4rem);
  margin-top: var(--space-md);
  letter-spacing: -0.025em;
}

.hero__title .accent {
  background: linear-gradient(135deg, var(--c-accent) 0%, #a7f3d0 100%);
  -webkit-background-clip: text;
          background-clip: text;
  -webkit-text-fill-color: transparent;
}

.hero__lede {
  max-width: 42rem;
  margin: var(--space-md) 0 0;
  color: var(--c-text-muted);
  font-size: 1.05rem;
}

.hero__rule {
  margin-top: var(--space-lg);
  height: 1px;
  width: 6rem;
  background: linear-gradient(
    90deg,
    var(--c-accent) 0%,
    transparent 100%
  );
}

/* ---------- grid ---------- */

.grid {
  padding: var(--space-xl) 0 var(--space-3xl);
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: var(--space-lg);
}

/* ---------- card ---------- */

.card {
  --card-x: 50%;
  --card-y: 50%;
  position: relative;
  display: block;
  padding: var(--space-lg);
  border-radius: var(--border-radius-lg);
  background:
    linear-gradient(
      180deg,
      rgba(255, 255, 255, 0.025) 0%,
      rgba(255, 255, 255, 0.005) 100%
    ),
    rgba(var(--c-bg-rgb), 0.88);
  border: 1px solid var(--c-border);
  box-shadow:
    0 1px 0 rgba(255, 255, 255, 0.03) inset,
    0 12px 32px -16px var(--c-card-shadow);
  color: var(--c-text);
  overflow: hidden;
  isolation: isolate;
  transition:
    transform var(--transition-base),
    border-color var(--transition-base),
    box-shadow var(--transition-base);
  opacity: 0;
  transform: translateY(8px);
  animation: card-in 0.6s cubic-bezier(0.22, 1, 0.36, 1) forwards;
  animation-delay: calc(var(--card-index, 0) * 60ms + 200ms);
}

@keyframes card-in {
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* cursor-tracked spotlight (subtle inner glow) */
.card::before {
  content: "";
  position: absolute;
  inset: 0;
  border-radius: inherit;
  background: radial-gradient(
    220px circle at var(--card-x) var(--card-y),
    rgba(74, 222, 128, 0.10),
    transparent 60%
  );
  opacity: 0;
  transition: opacity var(--transition-base);
  pointer-events: none;
  z-index: 0;
}

/* hairline accent border on hover */
.card::after {
  content: "";
  position: absolute;
  inset: 0;
  border-radius: inherit;
  padding: 1px;
  background: linear-gradient(
    135deg,
    rgba(74, 222, 128, 0.45),
    rgba(74, 222, 128, 0) 40%,
    rgba(74, 222, 128, 0) 60%,
    rgba(74, 222, 128, 0.25)
  );
  -webkit-mask:
    linear-gradient(#000 0 0) content-box,
    linear-gradient(#000 0 0);
  -webkit-mask-composite: xor;
          mask-composite: exclude;
  opacity: 0;
  transition: opacity var(--transition-base);
  pointer-events: none;
  z-index: 0;
}

.card:hover,
.card:focus-visible {
  transform: translateY(-4px);
  border-color: var(--c-accent-border);
  box-shadow:
    0 1px 0 rgba(255, 255, 255, 0.05) inset,
    0 18px 40px -18px rgba(74, 222, 128, 0.25),
    0 8px 24px -12px var(--c-card-shadow);
  outline: none;
}

.card:hover::before,
.card:focus-visible::before,
.card:hover::after,
.card:focus-visible::after {
  opacity: 1;
}

.card__inner {
  position: relative;
  z-index: 1;
  display: flex;
  flex-direction: column;
  gap: var(--space-md);
  height: 100%;
}

.card__head {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: var(--space-sm);
}

.card__icon {
  width: 40px;
  height: 40px;
  display: grid;
  place-items: center;
  border-radius: var(--border-radius);
  background: var(--c-accent-bg);
  border: 1px solid var(--c-accent-border);
  color: var(--c-accent);
  flex-shrink: 0;
  transition: transform var(--transition-base);
}

.card__icon svg {
  width: 20px;
  height: 20px;
}

.card:hover .card__icon {
  transform: scale(1.05) rotate(-2deg);
}

.card__pill {
  font-family: var(--f-mono);
  font-size: 0.65rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--c-text-faint);
  padding: 0.25rem 0.55rem;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid var(--c-border-light);
  white-space: nowrap;
}

.card__title {
  font-size: 1.05rem;
  font-weight: 600;
  color: var(--c-text);
  margin: 0;
}

.card__desc {
  font-size: 0.9rem;
  color: var(--c-text-muted);
  margin: 0;
  line-height: 1.5;
}

.card__cta {
  margin-top: auto;
  font-family: var(--f-mono);
  font-size: 0.7rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--c-text-faint);
  display: inline-flex;
  align-items: center;
  gap: var(--space-xs);
  transition: color var(--transition-fast), gap var(--transition-base);
}

.card:hover .card__cta {
  color: var(--c-accent);
  gap: var(--space-sm);
}

.card__cta svg {
  width: 12px;
  height: 12px;
}

/* ---------- footer ---------- */

.site-footer {
  margin-top: auto;
  padding: var(--space-xl) 0;
  border-top: 1px solid var(--c-border-light);
  color: var(--c-text-faint);
  font-size: 0.85rem;
}

.site-footer__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: var(--space-sm);
}

.site-footer a {
  color: var(--c-text-muted);
}

.site-footer a:hover {
  color: var(--c-accent);
}

/* ---------- responsive ---------- */

@media (max-width: 640px) {
  .site-header { padding: var(--space-lg) 0 var(--space-sm); }
  .hero { padding: var(--space-xl) 0 var(--space-lg); }
  .grid { gap: var(--space-md); }
  .shell { padding: 0 var(--space-md); }
  .card { padding: var(--space-md); }
  .site-header__meta { display: none; }
  .brand__name { font-size: 0.9rem; }
}

@media (max-width: 380px) {
  .shell { padding: 0 var(--space-sm); }
}

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

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.001ms !important;
  }
  .card {
    opacity: 1;
    transform: none;
  }
}

/* ============================================================
   Light theme — tokens copied verbatim from Ranzlappen/website.
   Trigger: <html data-theme="light">
   ============================================================ */

[data-theme="light"] {
  --c-bg:           #f5f9f7;
  --c-bg-alt:       #edf3f0;
  --c-surface:      #ffffff;
  --c-surface-alt:  #f0f5f2;
  --c-border:       #d0ddd6;
  --c-border-light: #dde8e2;
  --c-text:         #1a2a22;
  --c-text-muted:   #5a7068;
  --c-text-faint:   #8a9e95;
  --c-accent:       #16a34a;
  --c-accent-dim:   #15803d;
  --c-accent-bg:    rgba(22, 163, 74, 0.06);
  --c-accent-border: rgba(22, 163, 74, 0.20);
  --c-card-shadow:  rgba(0, 0, 0, 0.08);
  --c-bg-rgb:       245, 249, 247;
  color-scheme: light;
}

[data-theme="light"] body {
  background: var(--c-bg);
}

[data-theme="light"] .card {
  background:
    linear-gradient(
      180deg,
      rgba(255, 255, 255, 0.9) 0%,
      rgba(255, 255, 255, 0.7) 100%
    ),
    rgba(var(--c-bg-rgb), 0.6);
  box-shadow:
    0 1px 0 rgba(255, 255, 255, 0.6) inset,
    0 12px 32px -16px var(--c-card-shadow);
}

[data-theme="light"] .card:hover,
[data-theme="light"] .card:focus-visible {
  box-shadow:
    0 1px 0 rgba(255, 255, 255, 0.8) inset,
    0 18px 40px -18px rgba(22, 163, 74, 0.30),
    0 8px 24px -12px var(--c-card-shadow);
}

/* ---------- theme toggle button ---------- */

.theme-toggle {
  display: inline-grid;
  place-items: center;
  width: 36px;
  height: 36px;
  border-radius: 999px;
  border: 1px solid var(--c-border);
  background: rgba(var(--c-bg-rgb), 0.5);
  color: var(--c-text-muted);
  cursor: pointer;
  transition:
    color var(--transition-fast),
    background var(--transition-fast),
    border-color var(--transition-fast),
    transform var(--transition-fast);
}

.theme-toggle:hover {
  color: var(--c-accent);
  border-color: var(--c-accent-border);
  background: var(--c-accent-bg);
}

.theme-toggle:focus-visible {
  outline: 2px solid var(--c-accent);
  outline-offset: 2px;
}

.theme-toggle svg {
  width: 16px;
  height: 16px;
  transition: transform var(--transition-base);
}

.theme-toggle:hover svg {
  transform: rotate(15deg);
}

.theme-toggle .icon-sun  { display: none; }
.theme-toggle .icon-moon { display: block; }

[data-theme="light"] .theme-toggle .icon-sun  { display: block; }
[data-theme="light"] .theme-toggle .icon-moon { display: none; }

.site-header__inner > .header-actions {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
}

@media (prefers-reduced-transparency: reduce) {
  .card {
    background: var(--c-surface);
  }
}