/* ==========================================================================
   Marine Engineering Dynamics — website styles
   Depends on tokens.css. Use semantic tokens only; no raw colours here.
   ========================================================================== */

/* ---- Reset & base ------------------------------------------------------- */

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

html {
  scroll-behavior: smooth;
  scroll-padding-top: 5rem;
  -webkit-text-size-adjust: 100%;
}

body {
  margin: 0;
  background: var(--color-bg);
  color: var(--color-text);
  font-family: var(--font-sans);
  font-size: var(--text-base);
  line-height: var(--leading-body);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  overflow-x: hidden;
}

img, svg { display: block; max-width: 100%; }
h1, h2, h3, p, ul, ol, figure { margin: 0; }
ul, ol { padding: 0; list-style: none; }
a { color: inherit; text-decoration: none; }
strong { font-weight: var(--weight-semibold); color: var(--color-text); }
button, input, select, textarea { font: inherit; color: inherit; }

::selection { background: var(--color-accent); color: var(--color-accent-contrast); }

:focus-visible {
  outline: 2px solid var(--color-accent);
  outline-offset: 3px;
  border-radius: var(--radius-sm);
}

.mono {
  font-family: var(--font-mono);
  font-size: 0.92em;
  letter-spacing: 0;
}

.skip-link {
  position: absolute;
  left: var(--space-4);
  top: -3rem;
  z-index: 100;
  padding: var(--space-2) var(--space-4);
  background: var(--color-accent);
  color: var(--color-accent-contrast);
  border-radius: var(--radius-sm);
}
.skip-link:focus { top: var(--space-4); }

.container {
  width: 100%;
  max-width: var(--container);
  margin-inline: auto;
  padding-inline: var(--gutter);
}

.text-gradient {
  background: linear-gradient(100deg, var(--color-accent-strong) 0%, var(--color-accent) 70%, color-mix(in srgb, var(--color-accent) 55%, var(--color-highlight)) 120%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

/* ---- Buttons ------------------------------------------------------------ */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  height: 2.75rem;
  padding: 0 var(--space-5);
  border-radius: var(--radius-md);
  border: 1px solid transparent;
  font-size: var(--text-sm);
  font-weight: var(--weight-medium);
  white-space: nowrap;
  cursor: pointer;
  transition: background var(--duration-fast), border-color var(--duration-fast),
              color var(--duration-fast), box-shadow var(--duration-base), transform var(--duration-fast);
}
.btn:active { transform: translateY(1px); }
.btn--sm { height: 2.25rem; padding: 0 var(--space-4); }

.btn--primary {
  background: var(--color-accent);
  color: var(--color-accent-contrast);
  border-color: var(--color-accent);
}
.btn--primary:hover {
  background: var(--color-accent-hover);
  box-shadow: 0 0 24px -4px var(--color-accent-glow);
}

.btn--ghost {
  background: var(--color-surface-1);
  border-color: var(--color-border-strong);
  color: var(--color-text);
}
.btn--ghost:hover { border-color: var(--color-text-subtle); background: var(--color-surface-3); }

.btn--link { padding: 0 var(--space-2); color: var(--color-text-muted); }
.btn--link:hover { color: var(--color-accent); }

.btn__icon { width: 1rem; height: 1rem; }

/* ---- Eyebrow & section heads ------------------------------------------- */

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  margin-bottom: var(--space-4);
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  font-weight: var(--weight-medium);
  letter-spacing: var(--tracking-mono);
  text-transform: uppercase;
  color: var(--color-accent);
}
.eyebrow--ice { color: var(--color-ice); }

.eyebrow__dot {
  width: 6px; height: 6px;
  border-radius: 50%;
  background: var(--color-accent);
  box-shadow: 0 0 0 4px var(--color-accent-soft);
  animation: pulse 2.4s var(--ease-out) infinite;
}

@keyframes pulse {
  0%, 100% { box-shadow: 0 0 0 3px var(--color-accent-soft); }
  50%      { box-shadow: 0 0 0 7px transparent; }
}

.section {
  position: relative;
  padding-block: var(--space-10);
}
.section--divided { border-top: 1px solid var(--color-border); }

.section__head { max-width: 46rem; margin-bottom: var(--space-8); }
.section__head--center { margin-inline: auto; text-align: center; }

.section__title {
  font-size: var(--text-3xl);
  font-weight: var(--weight-medium);
  line-height: var(--leading-tight);
  letter-spacing: var(--tracking-tight);
  text-wrap: balance;
}

.section__lead {
  margin-top: var(--space-5);
  font-size: var(--text-lg);
  color: var(--color-text-muted);
  text-wrap: pretty;
}
.section__lead + .section__lead { margin-top: var(--space-4); }

@media (max-width: 640px) {
  .section { padding-block: var(--space-8); }
  .section__head { margin-bottom: var(--space-7); }
}

/* ---- Nav ---------------------------------------------------------------- */

.nav {
  position: sticky;
  top: 0;
  z-index: 50;
  border-bottom: 1px solid transparent;
  /* backdrop-filter is deliberately left out of the transition: animating it
     makes the header flash while the compositor re-rasterises the blur. It is
     applied instantly instead, and only the background and border fade. */
  transition: background var(--duration-base), border-color var(--duration-base);
  /* Own compositing layer, so the blurred backdrop is not repainted against the
     hero's running animations (the pulsing eyebrow dot, the drawn charts). */
  transform: translateZ(0);
}
.nav.is-scrolled,
.nav.is-open {
  background: color-mix(in srgb, var(--color-bg) 88%, transparent);
  border-bottom-color: var(--color-border);
  backdrop-filter: blur(16px) saturate(160%);
  -webkit-backdrop-filter: blur(16px) saturate(160%);
}

.nav__inner {
  display: flex;
  align-items: center;
  gap: var(--space-6);
  height: 4rem;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: var(--space-3);
  color: var(--color-accent);
}
.brand__mark {
  width: 1.75rem;
  height: 1.75rem;
  flex: none;
  color: var(--color-mark);
}
.brand__name {
  color: var(--color-text);
  font-weight: var(--weight-semibold);
  font-size: 0.95rem;
  letter-spacing: -0.01em;
}

.nav__links { display: flex; gap: var(--space-5); margin-left: auto; }
.nav__links a {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  transition: color var(--duration-fast);
}
.nav__links a:hover { color: var(--color-text); }

.nav__cta { display: flex; align-items: center; gap: var(--space-3); }

.nav__toggle {
  display: none;
  width: 2.75rem; height: 2.75rem;
  padding: 0;
  border: 1px solid var(--color-border-strong);
  border-radius: var(--radius-sm);
  background: var(--color-surface-2);
  cursor: pointer;
  position: relative;
}
.nav__toggle span {
  position: absolute;
  left: 50%;
  width: 14px; height: 1.5px;
  background: var(--color-text);
  transform: translateX(-50%);
  transition: transform var(--duration-base) var(--ease-out), top var(--duration-base) var(--ease-out);
}
.nav__toggle span:first-child { top: 17px; }
.nav__toggle span:last-child  { top: 24px; }
.nav.is-open .nav__toggle span:first-child { top: 20.5px; transform: translateX(-50%) rotate(45deg); }
.nav.is-open .nav__toggle span:last-child  { top: 20.5px; transform: translateX(-50%) rotate(-45deg); }

/* Only shown on phones, where the nav CTA button is hidden. */
.nav__links-contact { display: none; }

@media (max-width: 900px) {
  .nav__toggle { display: inline-block; }
  .nav__cta { margin-left: auto; }
  .nav__links {
    position: absolute;
    top: 4rem; left: 0; right: 0;
    flex-direction: column;
    gap: 0;
    margin: 0;
    padding: var(--space-2) var(--gutter) var(--space-5);
    background: var(--color-bg);
    border-bottom: 1px solid var(--color-border);
    display: none;
  }
  .nav.is-open .nav__links { display: flex; }
  .nav__links a { padding: var(--space-3) 0; font-size: var(--text-base); border-bottom: 1px solid var(--color-border); }
}
@media (max-width: 520px) {
  .brand__name { font-size: 0.85rem; }
  .nav__cta .btn { display: none; }
  .nav.is-open .nav__links-contact { display: block; }
}

/* ---- Hero --------------------------------------------------------------- */

.hero {
  position: relative;
  padding-top: var(--space-9);
  padding-bottom: var(--space-8);
  overflow: hidden;
  isolation: isolate;
}

.hero__bg {
  position: absolute;
  inset: -4rem 0 0;
  z-index: -1;
  background:
    radial-gradient(60rem 30rem at 78% 10%, var(--color-accent-glow), transparent 60%),
    radial-gradient(30rem 20rem at 95% 60%, var(--color-highlight-soft), transparent 70%),
    linear-gradient(var(--viz-grid) 1px, transparent 1px) 0 0 / 56px 56px,
    linear-gradient(90deg, var(--viz-grid) 1px, transparent 1px) 0 0 / 56px 56px;
  mask-image: radial-gradient(ellipse 90% 80% at 60% 20%, #000 40%, transparent 85%);
  -webkit-mask-image: radial-gradient(ellipse 90% 80% at 60% 20%, #000 40%, transparent 85%);
}

.hero__grid {
  display: grid;
  grid-template-columns: minmax(0, 1.05fr) minmax(0, 1fr);
  gap: var(--space-8);
  align-items: center;
}

.hero__title {
  font-size: var(--text-4xl);
  font-weight: var(--weight-medium);
  line-height: 1.02;
  letter-spacing: -0.045em;
  text-wrap: balance;
}

.hero__lead {
  margin-top: var(--space-5);
  max-width: 34rem;
  font-size: clamp(1.05rem, 1rem + 0.35vw, 1.25rem);
  color: var(--color-text-muted);
}

.hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-3);
  margin-top: var(--space-6);
}

.hero__facts {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2) var(--space-5);
  margin-top: var(--space-7);
  padding-top: var(--space-5);
  border-top: 1px solid var(--color-border);
  font-size: var(--text-sm);
  color: var(--color-text-subtle);
}
.hero__facts li { display: flex; align-items: center; gap: var(--space-2); }
.hero__facts li::before {
  content: "";
  width: 4px; height: 4px;
  border-radius: 50%;
  background: var(--color-accent);
}
.hero__facts a { color: var(--color-text-muted); border-bottom: 1px dashed var(--color-border-strong); }
.hero__facts a:hover { color: var(--color-accent); }

@media (max-width: 960px) {
  .hero { padding-top: var(--space-7); }
  .hero__grid { grid-template-columns: 1fr; gap: var(--space-7); }
}
@media (max-width: 640px) {
  .hero { padding-bottom: var(--space-6); }
  .hero__facts { margin-top: var(--space-6); }
}
@media (max-width: 520px) {
  .hero__actions .btn:not(.btn--link),
  .form__footer .btn { flex: 1 1 100%; }
}

/* ---- Panels (window chrome) -------------------------------------------- */

.panel {
  position: relative;
  background: linear-gradient(180deg, var(--color-surface-2), var(--color-surface-1));
  border: 1px solid var(--color-border-strong);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-card);
  overflow: hidden;
}

.panel__bar {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  padding: var(--space-3) var(--space-4);
  border-bottom: 1px solid var(--color-border);
  background: var(--color-bg-sunken);
}
.panel__dots { display: inline-flex; gap: 6px; }
.panel__dots i {
  width: 9px; height: 9px;
  border-radius: 50%;
  background: var(--color-surface-3);
  border: 1px solid var(--color-border-strong);
}
.panel__title { color: var(--color-text-subtle); font-size: var(--text-xs); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.panel__badge {
  margin-left: auto;
  padding: 2px var(--space-2);
  border: 1px solid var(--color-border-strong);
  border-radius: var(--radius-sm);
  font-size: 0.7rem;
  color: var(--color-text-subtle);
  white-space: nowrap;
}

.hero__viz { box-shadow: var(--shadow-card), 0 28px 80px -48px var(--color-accent-glow); }

/* ---- Charts (SVG rendered by main.js) ---------------------------------- */

.campbell, .icechart { padding: var(--space-4) var(--space-4) var(--space-2); }
.campbell svg, .icechart svg, .sweep svg { width: 100%; height: auto; overflow: visible; }

.viz-grid  { stroke: var(--viz-grid); stroke-width: 1; }
.viz-axis  { stroke: var(--viz-axis); stroke-width: 1; }
.viz-label { fill: var(--color-text-subtle); font-family: var(--font-mono); font-size: 10px; }
.viz-label--accent { fill: var(--color-accent); }
.viz-label--hl { fill: var(--color-highlight); }

.viz-band { fill: var(--color-accent-soft); }
.viz-barred { fill: var(--color-highlight-soft); stroke: var(--color-highlight); stroke-dasharray: 3 3; stroke-opacity: .5; }

.viz-order { stroke: var(--color-text-faint); stroke-width: 1; stroke-dasharray: 4 4; fill: none; }
.viz-mode  { stroke: var(--color-accent); stroke-width: 1.75; fill: none; }
.viz-mode--2 { stroke: var(--viz-3); }

.viz-hit {
  fill: var(--color-bg);
  stroke: var(--color-highlight);
  stroke-width: 2;
}
.viz-hit-ring {
  fill: none;
  stroke: var(--color-highlight);
  stroke-width: 1;
  transform-box: fill-box;
  transform-origin: center;
  animation: ring 2.6s var(--ease-out) infinite;
}
@keyframes ring {
  0%   { transform: scale(0.6); opacity: 0.9; }
  100% { transform: scale(3);   opacity: 0; }
}

.viz-draw {
  stroke-dasharray: var(--len, 1000);
  stroke-dashoffset: var(--len, 1000);
}
.is-visible .viz-draw { animation: draw 1.6s var(--ease-out) forwards; animation-delay: var(--delay, 0s); }
@keyframes draw { to { stroke-dashoffset: 0; } }

.viz-torque { stroke: var(--color-ice); stroke-width: 1.5; fill: none; }
.viz-torque-fill { fill: url(#iceFill); }
.viz-limit { stroke: var(--color-highlight); stroke-width: 1; stroke-dasharray: 6 4; }
.viz-mean { stroke: var(--color-text-faint); stroke-width: 1; stroke-dasharray: 2 4; }

.campbell__legend {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2) var(--space-4);
  padding: var(--space-3) var(--space-4) var(--space-4);
  font-size: var(--text-xs);
  color: var(--color-text-subtle);
}
.campbell__legend span { display: inline-flex; align-items: center; gap: var(--space-2); }
.swatch { display: inline-block; width: 14px; height: 2px; }
.swatch--line  { background: var(--color-accent); }
.swatch--order { background: repeating-linear-gradient(90deg, var(--color-text-faint) 0 3px, transparent 3px 6px); }
.swatch--hit   { width: 8px; height: 8px; border-radius: 50%; border: 2px solid var(--color-highlight); }
.swatch--band  { height: 8px; background: var(--color-accent-soft); border: 1px solid var(--color-border-accent); }

/* Shaftline: animated mass-elastic model under the hero */
.shaftline { margin-top: var(--space-8); opacity: 0.9; }
@media (max-width: 640px) { .shaftline { display: none; } }
.shaftline svg { width: 100%; height: auto; }
.sl-shaft  { stroke: var(--color-border-strong); stroke-width: 2; }
.sl-spring { stroke: var(--color-text-faint); stroke-width: 1.25; fill: none; }
.sl-disk   { fill: var(--color-surface-3); stroke: var(--color-border-strong); }
.sl-disk--accent { fill: var(--color-accent-soft); stroke: var(--color-accent); }
.sl-disk--hl     { fill: var(--color-highlight-soft); stroke: var(--color-highlight); }
.sl-label  { fill: var(--color-text-faint); font-family: var(--font-mono); font-size: 10px; text-anchor: middle; }
/* The 1100-unit viewBox shrinks below 960px, so the labels grow to stay legible. */
@media (max-width: 960px) {
  .shaftline .sl-label,
  .shaftline .viz-label { font-size: 16px; }
}
.sl-modeline { stroke: var(--color-accent); stroke-width: 1.5; fill: none; opacity: 0.8; }
.sl-modedot  { fill: var(--color-accent); }

/* ---- Questions ---------------------------------------------------------- */

.questions {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1px;
  background: var(--color-border);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  overflow: hidden;
}
.question {
  display: flex;
  gap: var(--space-4);
  padding: var(--space-5);
  background: var(--color-bg);
  color: var(--color-text-muted);
  transition: background var(--duration-base), color var(--duration-base);
}
.question:hover { background: var(--color-surface-1); color: var(--color-text); }
.question .mono { color: var(--color-accent); font-size: var(--text-xs); padding-top: 0.25rem; }

@media (max-width: 900px) {
  .questions { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  /* 9 questions in 2 columns would leave an empty cell showing the grid background. */
  .question:last-child:nth-child(odd) { grid-column: 1 / -1; }
}
@media (max-width: 600px) { .questions { grid-template-columns: 1fr; } }

/* ---- Cards -------------------------------------------------------------- */

.cards { display: grid; gap: var(--space-4); }
.cards--3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
@media (max-width: 960px) { .cards--3 { grid-template-columns: repeat(2, minmax(0, 1fr)); } }
@media (max-width: 620px) { .cards--3 { grid-template-columns: 1fr; } }

.card {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
  padding: var(--space-6);
  background: var(--color-surface-1);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  color: var(--color-text-muted);
  transition: border-color var(--duration-base), transform var(--duration-base) var(--ease-out), background var(--duration-base);
}
.card::before {
  content: "";
  position: absolute;
  inset: 0;
  border-radius: inherit;
  background: radial-gradient(24rem 12rem at var(--mx, 50%) var(--my, 0%), var(--color-accent-soft), transparent 60%);
  opacity: 0;
  transition: opacity var(--duration-base);
  pointer-events: none;
}
.card:hover { border-color: var(--color-border-strong); transform: translateY(-2px); }
.card:hover::before { opacity: 1; }

.card--feature { border-color: var(--color-border-accent); box-shadow: 0 0 40px -20px var(--color-accent-glow); }
.card--ice .card__icon { color: var(--color-ice); border-color: color-mix(in srgb, var(--color-ice) 40%, transparent); }

.card__icon {
  display: grid;
  place-items: center;
  width: 2.5rem; height: 2.5rem;
  margin-bottom: var(--space-2);
  border: 1px solid var(--color-border-strong);
  border-radius: var(--radius-md);
  background: var(--color-bg-sunken);
  color: var(--color-accent);
}
.card__icon svg { width: 1.25rem; height: 1.25rem; fill: none; stroke: currentColor; stroke-width: 1.6; stroke-linecap: round; stroke-linejoin: round; }

.card__title { font-size: var(--text-xl); font-weight: var(--weight-medium); letter-spacing: -0.02em; color: var(--color-text); }
.card__meta { margin-top: auto; padding-top: var(--space-3); font-size: var(--text-xs); color: var(--color-text-subtle); text-transform: uppercase; letter-spacing: var(--tracking-mono); }

/* ---- Tags & scope -------------------------------------------------------- */

.scope {
  display: grid;
  grid-template-columns: 1.3fr 1fr;
  gap: var(--space-7);
  margin-top: var(--space-8);
  padding: var(--space-7);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  background:
    linear-gradient(var(--viz-grid) 1px, transparent 1px) 0 0 / 28px 28px,
    linear-gradient(90deg, var(--viz-grid) 1px, transparent 1px) 0 0 / 28px 28px,
    var(--color-bg-sunken);
}
@media (max-width: 860px) { .scope { grid-template-columns: 1fr; padding: var(--space-5); } }
@media (max-width: 640px) { .scope { margin-top: var(--space-7); } }

.scope__title {
  margin-bottom: var(--space-4);
  font-size: var(--text-xs);
  font-weight: var(--weight-medium);
  text-transform: uppercase;
  letter-spacing: var(--tracking-mono);
  color: var(--color-text-subtle);
}
.scope__note { margin-top: var(--space-5); font-size: var(--text-sm); color: var(--color-text-subtle); }

.tags { display: flex; flex-wrap: wrap; gap: var(--space-2); }
.tags li {
  padding: 0.3rem 0.7rem;
  border: 1px solid var(--color-border-strong);
  border-radius: var(--radius-pill);
  background: var(--color-surface-1);
  font-size: var(--text-sm);
  color: var(--color-text-muted);
}
.tags--accent li { border-color: var(--color-border-accent); background: var(--color-accent-soft); color: var(--color-accent-strong); }

/* ---- Split layout -------------------------------------------------------- */

.split {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
  gap: var(--space-8);
  align-items: center;
}
.split--reverse > :first-child { order: 2; }
@media (max-width: 960px) {
  .split { grid-template-columns: 1fr; gap: var(--space-7); }
  .split--reverse > :first-child { order: 0; }
}

.checklist { display: grid; gap: var(--space-3); margin-top: var(--space-6); }
.checklist li {
  position: relative;
  padding-left: 1.75rem;
  color: var(--color-text-muted);
}
.checklist li::before {
  content: "";
  position: absolute;
  left: 0; top: 0.4em;
  width: 1rem; height: 0.55rem;
  border-left: 1.5px solid var(--color-accent);
  border-bottom: 1.5px solid var(--color-accent);
  transform: rotate(-45deg) scale(0.75);
  transform-origin: 30% 60%;
}
.checklist--ice li::before { border-color: var(--color-ice); }

/* ---- Compare (optimisation) --------------------------------------------- */

.compare { display: grid; gap: var(--space-3); }
.compare__item {
  padding: var(--space-6);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  background: var(--color-surface-1);
}
.compare__item--weak { opacity: 0.7; }
.compare__item--strong { border-color: var(--color-border-accent); box-shadow: var(--shadow-glow); background: linear-gradient(180deg, var(--color-surface-2), var(--color-surface-1)); }
.compare__label { font-size: var(--text-xs); text-transform: uppercase; letter-spacing: var(--tracking-mono); color: var(--color-text-subtle); margin-bottom: var(--space-3); }
.compare__item--strong .compare__label { color: var(--color-accent); }
.compare__text { font-size: var(--text-lg); line-height: var(--leading-snug); color: var(--color-text-muted); }
.compare__text strong { color: var(--color-highlight); font-weight: var(--weight-medium); }
.compare__text em { font-style: normal; color: var(--color-text); }
.compare__arrow { text-align: center; color: var(--color-text-faint); font-size: var(--text-lg); line-height: 1; }
.sweep { margin-top: var(--space-5); }

/* ---- Ice section --------------------------------------------------------- */

.section--ice {
  background:
    radial-gradient(40rem 24rem at 15% 50%, color-mix(in srgb, var(--color-ice) 9%, transparent), transparent 70%);
}

/* ---- Triggers ------------------------------------------------------------ */

.triggers {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: var(--space-2);
  max-width: 62rem;
  margin-inline: auto;
}
.triggers li {
  padding: 0.5rem 0.95rem;
  border: 1px solid var(--color-border-strong);
  border-radius: var(--radius-pill);
  background: var(--color-surface-1);
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  transition: border-color var(--duration-fast), color var(--duration-fast), background var(--duration-fast);
}
.triggers li:hover { border-color: var(--color-border-accent); color: var(--color-text); background: var(--color-accent-soft); }
.triggers li.is-hot { border-color: color-mix(in srgb, var(--color-highlight) 45%, transparent); color: var(--color-highlight); background: var(--color-highlight-soft); }
.triggers li.is-ice { border-color: color-mix(in srgb, var(--color-ice) 45%, transparent); color: var(--color-ice); }

/* ---- Steps, deliverables, pricing --------------------------------------- */

.steps {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: var(--space-4);
  counter-reset: step;
}
@media (max-width: 860px) { .steps { grid-template-columns: 1fr; } }

.step {
  position: relative;
  padding: var(--space-6);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  background: var(--color-surface-1);
  color: var(--color-text-muted);
}
.step__num {
  display: inline-grid;
  place-items: center;
  width: 2.25rem; height: 2.25rem;
  margin-bottom: var(--space-5);
  border: 1px solid var(--color-border-accent);
  border-radius: 50%;
  background: var(--color-accent-soft);
  color: var(--color-accent);
  font-size: var(--text-xs);
}
.step__title { margin-bottom: var(--space-2); font-size: var(--text-xl); font-weight: var(--weight-medium); letter-spacing: -0.02em; color: var(--color-text); }

.deliverables {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 1px;
  margin-top: var(--space-7);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  background: var(--color-border);
  overflow: hidden;
}
@media (max-width: 960px) { .deliverables { grid-template-columns: repeat(2, minmax(0, 1fr)); } }
@media (max-width: 560px) { .deliverables { grid-template-columns: 1fr; } }

.deliverable { padding: var(--space-5); background: var(--color-bg); color: var(--color-text-muted); font-size: var(--text-sm); }
.deliverable__title { display: flex; align-items: baseline; gap: var(--space-2); margin-bottom: var(--space-2); font-size: var(--text-base); font-weight: var(--weight-medium); color: var(--color-text); }
.deliverable__title .mono { color: var(--color-accent); font-size: var(--text-xs); }

.pricing {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1.2fr);
  gap: var(--space-7);
  margin-top: var(--space-7);
  padding: var(--space-7);
  border: 1px solid var(--color-border-accent);
  border-radius: var(--radius-lg);
  background:
    radial-gradient(30rem 16rem at 0% 0%, var(--color-accent-soft), transparent 70%),
    var(--color-surface-1);
}
@media (max-width: 860px) { .pricing { grid-template-columns: 1fr; padding: var(--space-5); } }
@media (max-width: 640px) { .pricing { margin-top: var(--space-7); } }

.pricing__price { font-size: clamp(2.5rem, 2rem + 2vw, 3.5rem); font-weight: var(--weight-medium); letter-spacing: var(--tracking-tight); line-height: 1; }
/* Headline is a phrase rather than a figure, so it needs a smaller size. */
.pricing__price--text { font-size: clamp(1.5rem, 1.25rem + 1vw, 2rem); }
.pricing__note { margin-top: var(--space-4); font-size: var(--text-sm); color: var(--color-text-subtle); }
.pricing__main .checklist { margin-top: var(--space-5); }
.pricing__addons-title { margin-bottom: var(--space-4); font-size: var(--text-xs); text-transform: uppercase; letter-spacing: var(--tracking-mono); color: var(--color-text-subtle); }

/* ---- Code panel ---------------------------------------------------------- */

.code__body {
  margin: 0;
  padding: var(--space-5);
  overflow-x: auto;
  font-family: var(--font-mono);
  font-size: 0.82rem;
  line-height: 1.7;
  color: var(--color-text-muted);
  tab-size: 4;
}
.t-k { color: var(--viz-3); }
.t-f { color: var(--color-accent); }
.t-n { color: var(--color-highlight); }
.t-c { color: var(--color-text-faint); font-style: italic; }
/* ---- Audience & boundary ------------------------------------------------ */

.audience {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: var(--space-6) var(--space-5);
}
@media (max-width: 960px) { .audience { grid-template-columns: repeat(2, minmax(0, 1fr)); } }
@media (max-width: 560px) { .audience { grid-template-columns: 1fr; } }

.audience__item { padding-left: var(--space-4); border-left: 1px solid var(--color-border-strong); font-size: var(--text-sm); color: var(--color-text-subtle); }
.audience__item h3 { margin-bottom: var(--space-2); font-size: var(--text-base); font-weight: var(--weight-medium); color: var(--color-text); }

.boundary {
  display: grid;
  grid-template-columns: 1fr 1fr;
  margin-top: var(--space-8);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  overflow: hidden;
}
@media (max-width: 760px) { .boundary { grid-template-columns: 1fr; } }
@media (max-width: 640px) { .boundary { margin-top: var(--space-7); } }

.boundary__col { padding: var(--space-6); color: var(--color-text-subtle); font-size: var(--text-sm); }
.boundary__col--do { background: linear-gradient(135deg, var(--color-accent-soft), transparent 70%); border-right: 1px solid var(--color-border); }
@media (max-width: 760px) { .boundary__col--do { border-right: 0; border-bottom: 1px solid var(--color-border); } }
.boundary__label { margin-bottom: var(--space-2); font-size: var(--text-xs); text-transform: uppercase; letter-spacing: var(--tracking-mono); }
.boundary__col--do .boundary__label { color: var(--color-accent); }
.boundary__statement { margin-bottom: var(--space-3); font-size: var(--text-xl); letter-spacing: -0.02em; color: var(--color-text); }
.boundary__col--dont .boundary__statement { color: var(--color-text-muted); }
/* ---- Founders ------------------------------------------------------------ */

.founders {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: var(--space-4);
}
@media (max-width: 720px) { .founders { grid-template-columns: 1fr; } }

.founder {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: var(--space-4);
  padding: var(--space-6);
  background: var(--color-surface-1);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  transition: border-color var(--duration-base), transform var(--duration-base) var(--ease-out);
}
.founder:hover { border-color: var(--color-border-strong); transform: translateY(-2px); }

.founder__head { display: flex; align-items: center; gap: var(--space-4); }

.founder__photo {
  flex: none;
  width: 4rem; height: 4rem;
  border-radius: var(--radius-pill);
  object-fit: cover;
  background: var(--color-bg-sunken);
  border: 1px solid var(--color-border-strong);
}

.founder__name { font-size: var(--text-xl); font-weight: var(--weight-medium); letter-spacing: -0.02em; color: var(--color-text); }
.founder__role { margin-top: var(--space-1); font-size: var(--text-sm); color: var(--color-text-subtle); }
.founder__bio { color: var(--color-text-muted); }

.founder__link {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  margin-top: auto;
  font-size: var(--text-sm);
  color: var(--color-text-muted);
}
.founder__link:hover { color: var(--color-accent); }
.founder__link-icon { width: 1rem; height: 1rem; }

/* ---- Contact & form ------------------------------------------------------ */

.section--contact {
  border-top: 1px solid var(--color-border);
  background:
    radial-gradient(50rem 30rem at 85% 30%, var(--color-accent-soft), transparent 65%),
    var(--color-bg);
}

.contact {
  display: grid;
  grid-template-columns: minmax(0, 0.85fr) minmax(0, 1.15fr);
  gap: var(--space-8);
  align-items: start;
}
@media (max-width: 960px) { .contact { grid-template-columns: 1fr; gap: var(--space-7); } }


.form { padding: var(--space-6); }
@media (max-width: 560px) { .form { padding: var(--space-5); } }

.form__grid { display: grid; grid-template-columns: 1fr 1fr; gap: var(--space-4); }
@media (max-width: 620px) { .form__grid { grid-template-columns: 1fr; } }

.field { display: flex; flex-direction: column; gap: var(--space-2); min-width: 0; }
.field--full { grid-column: 1 / -1; }
.field__label { font-size: var(--text-sm); color: var(--color-text-muted); }
.field__label em { font-style: normal; color: var(--color-accent); }
.field__opt { margin-left: var(--space-1); font-family: var(--font-mono); font-size: 0.7rem; color: var(--color-text-faint); }

.field input,
.field select,
.field textarea {
  width: 100%;
  padding: 0.7rem 0.85rem;
  border: 1px solid var(--color-border-strong);
  border-radius: var(--radius-md);
  background: var(--color-bg-sunken);
  color: var(--color-text);
  font-size: var(--text-base);
  transition: border-color var(--duration-fast), box-shadow var(--duration-fast);
}
.field textarea { resize: vertical; min-height: 8rem; line-height: var(--leading-body); }
.field select { appearance: none; background-image: linear-gradient(45deg, transparent 50%, var(--color-text-subtle) 50%), linear-gradient(135deg, var(--color-text-subtle) 50%, transparent 50%); background-position: calc(100% - 18px) 55%, calc(100% - 13px) 55%; background-size: 5px 5px; background-repeat: no-repeat; padding-right: 2.25rem; }
.field ::placeholder { color: var(--color-text-faint); }
.field input:hover, .field select:hover, .field textarea:hover { border-color: var(--color-text-faint); }
.field input:focus, .field select:focus, .field textarea:focus {
  outline: none;
  border-color: var(--color-accent);
  box-shadow: 0 0 0 3px var(--color-accent-soft);
}
.field .is-invalid { border-color: var(--color-danger); }

/* hCaptcha injects a fixed-size iframe; keep it inside the form on narrow screens. */
.captcha .h-captcha { max-width: 100%; overflow-x: auto; }

.hp { position: absolute; left: -10000px; width: 1px; height: 1px; overflow: hidden; }

.form__footer { display: flex; flex-wrap: wrap; gap: var(--space-3); margin-top: var(--space-6); }
.form__status { margin-top: var(--space-4); font-size: var(--text-sm); color: var(--color-text-muted); }
.form__status:empty { display: none; }
.form__status.is-ok { color: var(--color-ok); }
.form__status.is-error { color: var(--color-danger); }

/* ---- Footer -------------------------------------------------------------- */

.footer { border-top: 1px solid var(--color-border); background: var(--color-bg-sunken); padding-block: var(--space-8) var(--space-6); }
.footer__inner { display: flex; flex-wrap: wrap; justify-content: space-between; gap: var(--space-6); }
.footer__tag { margin-top: var(--space-3); max-width: 24rem; font-size: var(--text-sm); color: var(--color-text-subtle); }
.footer__links { display: flex; flex-wrap: wrap; gap: var(--space-3) var(--space-5); align-content: start; font-size: var(--text-sm); color: var(--color-text-muted); }
.footer__links a:hover { color: var(--color-text); }
.footer__legal {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: var(--space-3);
  margin-top: var(--space-7);
  padding-top: var(--space-5);
  border-top: 1px solid var(--color-border);
  font-size: var(--text-xs);
  color: var(--color-text-faint);
}

/* ---- Reveal on scroll ---------------------------------------------------- */

.reveal { opacity: 0; transform: translateY(16px); transition: opacity var(--duration-slow) var(--ease-out), transform var(--duration-slow) var(--ease-out); }
.reveal.is-visible { opacity: 1; transform: none; }

@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; }
  .reveal { opacity: 1; transform: none; }
  .viz-draw { stroke-dashoffset: 0; }
}