/* ==========================================================================
   Intelligentside design system
   Palette verified against WCAG 2.2 AA (see docs/sop-compliance.md)
   ========================================================================== */

/* --- 1. Reset ------------------------------------------------------------ */

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

html {
  -webkit-text-size-adjust: 100%;
  scroll-behavior: smooth;
}

body, h1, h2, h3, h4, p, figure, blockquote, dl, dd, ul, ol {
  margin: 0;
}

ul[class], ol[class] { list-style: none; padding: 0; }

img, svg, canvas { display: block; max-width: 100%; }
img { height: auto; }

input, button, textarea, select { font: inherit; color: inherit; }

button { background: none; border: 0; cursor: pointer; }

a { color: inherit; }

:target { scroll-margin-top: 6rem; }

/* --- 2. Tokens ----------------------------------------------------------- */

:root {
  color-scheme: dark;

  --bg:        #05070D;
  --surface:   #0B111C;
  --surface-2: #131C2B;
  --text:      #E9EEF7;
  --muted:     #93A3BC;
  --accent:    #43E5C8;
  --accent-2:  #8AA2FF;
  --warn:      #FFC46B;
  --line:      #22304A;
  --ink:       #05070D;

  --glow: 67 229 200;
  --grid-line: rgba(147, 163, 188, 0.09);

  --shadow-1: 0 1px 2px rgba(0, 0, 0, .4);
  --shadow-2: 0 18px 50px -20px rgba(0, 0, 0, .85);

  --r-sm: 6px;
  --r-md: 12px;
  --r-lg: 20px;
  --r-pill: 999px;

  --step--1: clamp(.78rem, .76rem + .1vw, .84rem);
  --step-0:  clamp(1rem, .96rem + .2vw, 1.09rem);
  --step-1:  clamp(1.2rem, 1.12rem + .4vw, 1.4rem);
  --step-2:  clamp(1.45rem, 1.3rem + .75vw, 1.9rem);
  --step-3:  clamp(1.8rem, 1.5rem + 1.4vw, 2.6rem);
  --step-4:  clamp(2.2rem, 1.7rem + 2.4vw, 3.8rem);

  --sans: ui-sans-serif, system-ui, -apple-system, "Segoe UI", Roboto,
          "Helvetica Neue", Arial, sans-serif;
  --mono: ui-monospace, SFMono-Regular, "Cascadia Mono", "Segoe UI Mono",
          Menlo, Consolas, monospace;

  --wrap: 1180px;
  --gutter: clamp(1.1rem, 4vw, 2.5rem);
  --pace: 420ms;
  --ease: cubic-bezier(.22, .81, .3, 1);
}

:root[data-theme="light"] {
  color-scheme: light;

  --bg:        #F5F8FC;
  --surface:   #FFFFFF;
  --surface-2: #E9F0F8;
  --text:      #08101C;
  --muted:     #4C5D77;
  --accent:    #0B6C5D;
  --accent-2:  #3B49BE;
  --warn:      #8A5A00;
  --line:      #BCCDE1;
  --ink:       #FFFFFF;

  --glow: 11 108 93;
  --grid-line: rgba(8, 16, 28, 0.06);
  --shadow-2: 0 18px 44px -24px rgba(10, 25, 50, .35);
}

@media (prefers-color-scheme: light) {
  :root:not([data-theme]) {
    color-scheme: light;
    --bg:        #F5F8FC;
    --surface:   #FFFFFF;
    --surface-2: #E9F0F8;
    --text:      #08101C;
    --muted:     #4C5D77;
    --accent:    #0B6C5D;
    --accent-2:  #3B49BE;
    --warn:      #8A5A00;
    --line:      #BCCDE1;
    --ink:       #FFFFFF;
    --glow: 11 108 93;
    --grid-line: rgba(8, 16, 28, 0.06);
    --shadow-2: 0 18px 44px -24px rgba(10, 25, 50, .35);
  }
}

/* --- 3. Base ------------------------------------------------------------- */

body {
  background: var(--bg);
  color: var(--text);
  font-family: var(--sans);
  font-size: var(--step-0);
  line-height: 1.65;
  min-height: 100vh;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}

h1, h2, h3, h4 {
  line-height: 1.12;
  letter-spacing: -0.022em;
  font-weight: 640;
  text-wrap: balance;
}

h1 { font-size: var(--step-4); }
h2 { font-size: var(--step-3); }
h3 { font-size: var(--step-1); }

p { text-wrap: pretty; }

a:not([class]) {
  color: var(--accent);
  text-underline-offset: .22em;
  text-decoration-thickness: 1px;
}
a:not([class]):hover { color: var(--text); }

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

::selection { background: rgb(var(--glow) / .3); color: var(--text); }

.skip {
  position: absolute;
  left: 50%;
  top: 0;
  transform: translate(-50%, -140%);
  z-index: 200;
  padding: .7rem 1.2rem;
  background: var(--accent);
  color: var(--ink);
  font-weight: 620;
  border-radius: 0 0 var(--r-md) var(--r-md);
  transition: transform 180ms var(--ease);
}
.skip:focus { transform: translate(-50%, 0); }

.visually-hidden {
  position: absolute !important;
  width: 1px; height: 1px;
  margin: -1px; padding: 0;
  overflow: hidden;
  clip: rect(0 0 0 0);
  clip-path: inset(50%);
  white-space: nowrap;
  border: 0;
}

/* --- 4. Layout ----------------------------------------------------------- */

.wrap {
  width: min(100% - var(--gutter) * 2, var(--wrap));
  margin-inline: auto;
}

.section { padding-block: clamp(3.5rem, 9vw, 7rem); position: relative; }
.section--tight { padding-block: clamp(2.5rem, 6vw, 4.5rem); }
.section--edge { border-top: 1px solid var(--line); }

.stack > * + * { margin-top: var(--gap, 1rem); }

.lede {
  font-size: var(--step-1);
  color: var(--muted);
  max-width: 62ch;
  line-height: 1.55;
}

.eyebrow {
  font-family: var(--mono);
  font-size: var(--step--1);
  letter-spacing: .18em;
  text-transform: uppercase;
  color: var(--accent);
  display: flex;
  align-items: center;
  gap: .7rem;
}
.eyebrow::before {
  content: "";
  width: 1.6rem;
  height: 1px;
  background: currentColor;
  flex: none;
}

.section-head { max-width: 68ch; }
.section-head > * + * { margin-top: 1rem; }

.grid {
  display: grid;
  gap: clamp(1rem, 2.4vw, 1.6rem);
}
@media (min-width: 720px)  { .grid--3, .grid--2 { grid-template-columns: repeat(2, 1fr); } }
@media (min-width: 1000px) { .grid--3 { grid-template-columns: repeat(3, 1fr); } }
@media (min-width: 900px)  { .grid--4 { grid-template-columns: repeat(2, 1fr); } }
@media (min-width: 1100px) { .grid--4 { grid-template-columns: repeat(4, 1fr); } }

/* --- 5. Background field ------------------------------------------------- */

.field {
  position: fixed;
  inset: 0;
  z-index: -2;
  pointer-events: none;
}
.field canvas { width: 100%; height: 100%; }

.header-sentinel {
  position: absolute;
  top: 0; left: 0;
  width: 1px; height: 1px;
  pointer-events: none;
}

.field::after {
  content: "";
  position: absolute;
  inset: 0;
  background:
    linear-gradient(to bottom, transparent 0%, var(--bg) 78%),
    radial-gradient(ellipse 80% 55% at 50% -10%, rgb(var(--glow) / .12), transparent 70%);
}

.mesh {
  position: fixed;
  inset: 0;
  z-index: -3;
  pointer-events: none;
  background-image:
    linear-gradient(var(--grid-line) 1px, transparent 1px),
    linear-gradient(90deg, var(--grid-line) 1px, transparent 1px);
  background-size: 64px 64px;
  mask-image: radial-gradient(ellipse 90% 70% at 50% 0%, #000 10%, transparent 75%);
}

/* --- 6. Header ----------------------------------------------------------- */

.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  border-bottom: 1px solid transparent;
  transition: background var(--pace) var(--ease), border-color var(--pace) var(--ease);
}
.site-header[data-stuck="true"] {
  background: color-mix(in srgb, var(--bg) 88%, transparent);
  backdrop-filter: blur(14px) saturate(140%);
  -webkit-backdrop-filter: blur(14px) saturate(140%);
  border-bottom-color: var(--line);
}

.masthead {
  display: flex;
  align-items: center;
  gap: 1rem;
  min-height: 4.6rem;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: .6rem;
  text-decoration: none;
  font-weight: 660;
  letter-spacing: -.02em;
  margin-right: auto;
  padding: .35rem;
  border-radius: var(--r-sm);
}
.brand-mark { width: 30px; height: 30px; flex: none; }
.brand-mark .ring { stroke: var(--accent); }
.brand-mark .beam { fill: var(--accent); }
.brand-mark .core { fill: var(--text); }
.brand-name { font-size: 1.06rem; }
.brand-name b { font-weight: 660; }
.brand-name span { color: var(--muted); font-weight: 500; }

.nav {
  display: flex;
  align-items: center;
  gap: .15rem;
}
.nav a {
  display: block;
  padding: .55rem .8rem;
  border-radius: var(--r-sm);
  text-decoration: none;
  font-size: .95rem;
  color: var(--muted);
  transition: color 160ms var(--ease), background 160ms var(--ease);
}
.nav a:hover { color: var(--text); background: var(--surface-2); }
.nav a[aria-current="page"] { color: var(--text); }
.nav a[aria-current="page"]::after {
  content: "";
  display: block;
  height: 2px;
  margin-top: 3px;
  border-radius: 2px;
  background: var(--accent);
}

.header-tools { display: flex; align-items: center; gap: .5rem; }

.icon-btn {
  width: 2.4rem; height: 2.4rem;
  display: grid; place-items: center;
  border: 1px solid var(--line);
  border-radius: var(--r-sm);
  color: var(--muted);
  transition: color 160ms var(--ease), border-color 160ms var(--ease), background 160ms var(--ease);
}
.icon-btn:hover { color: var(--text); border-color: var(--accent); background: var(--surface-2); }
.icon-btn svg { width: 17px; height: 17px; }
.icon-btn .sun { display: none; }
:root[data-theme="light"] .icon-btn .sun { display: block; }
:root[data-theme="light"] .icon-btn .moon { display: none; }
@media (prefers-color-scheme: light) {
  :root:not([data-theme]) .icon-btn .sun { display: block; }
  :root:not([data-theme]) .icon-btn .moon { display: none; }
}

.nav-toggle { display: none; }

.header-call { padding: .55rem 1rem; font-size: .9rem; }
@media (max-width: 640px) {
  .header-call .label { display: none; }
  .header-call { padding: .55rem .75rem; }
}

@media (max-width: 900px) {
  .nav-toggle { display: grid; }
  .nav {
    position: fixed;
    inset: 4.6rem 0 auto;
    flex-direction: column;
    align-items: stretch;
    gap: .2rem;
    padding: 1rem var(--gutter) 1.6rem;
    background: var(--surface);
    border-bottom: 1px solid var(--line);
    box-shadow: var(--shadow-2);
    transform: translateY(-8px);
    opacity: 0;
    visibility: hidden;
    transition: opacity 200ms var(--ease), transform 200ms var(--ease), visibility 200ms;
  }
  .nav[data-open="true"] { opacity: 1; transform: none; visibility: visible; }
  .nav a { padding: .8rem .6rem; font-size: 1.05rem; border-bottom: 1px solid var(--line); border-radius: 0; }
  .nav a:last-child { border-bottom: 0; }
  .nav a[aria-current="page"]::after { display: none; }
  .nav a[aria-current="page"] { color: var(--accent); }
}

/* --- 7. Buttons ---------------------------------------------------------- */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: .55rem;
  padding: .8rem 1.35rem;
  border-radius: var(--r-pill);
  font-weight: 600;
  font-size: .97rem;
  text-decoration: none;
  border: 1px solid transparent;
  transition: transform 160ms var(--ease), background 160ms var(--ease),
              border-color 160ms var(--ease), color 160ms var(--ease),
              box-shadow 160ms var(--ease);
  white-space: nowrap;
}
.btn svg { width: 16px; height: 16px; flex: none; }
.btn:hover { transform: translateY(-2px); }
.btn:active { transform: translateY(0); }

.btn--primary {
  background: var(--accent);
  color: var(--ink);
  box-shadow: 0 0 0 0 rgb(var(--glow) / .5);
}
.btn--primary:hover { box-shadow: 0 10px 30px -10px rgb(var(--glow) / .6); }

.btn--ghost {
  border-color: var(--line);
  color: var(--text);
}
.btn--ghost:hover { border-color: var(--accent); background: var(--surface-2); }

.btn--sm { padding: .5rem .9rem; font-size: .88rem; }

.btn-row { display: flex; flex-wrap: wrap; gap: .7rem; align-items: center; }

/* --- 8. Hero ------------------------------------------------------------- */

.hero { padding-block: clamp(3rem, 8vw, 6.5rem) clamp(2.5rem, 6vw, 4rem); }

.hero-inner { display: grid; gap: clamp(2rem, 5vw, 3.5rem); }
@media (min-width: 1060px) {
  .hero-inner { grid-template-columns: minmax(0, 1.02fr) minmax(0, 1fr); align-items: center; }
}

.hero h1 { margin-block: 1.1rem .9rem; }
.hero .lede { max-width: 52ch; }
.hero .btn-row { margin-top: 1.8rem; }

.hero-note {
  margin-top: 1.5rem;
  font-family: var(--mono);
  font-size: var(--step--1);
  color: var(--muted);
  display: flex;
  align-items: center;
  gap: .55rem;
}
.pulse {
  width: 7px; height: 7px;
  border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 0 0 0 rgb(var(--glow) / .7);
  animation: pulse 2.6s infinite;
  flex: none;
}
@keyframes pulse {
  0%   { box-shadow: 0 0 0 0 rgb(var(--glow) / .55); }
  70%  { box-shadow: 0 0 0 11px rgb(var(--glow) / 0); }
  100% { box-shadow: 0 0 0 0 rgb(var(--glow) / 0); }
}

/* --- 9. Panels & cards --------------------------------------------------- */

.panel {
  background: color-mix(in srgb, var(--surface) 82%, transparent);
  border: 1px solid var(--line);
  border-radius: var(--r-lg);
  box-shadow: var(--shadow-2);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
}

.card {
  position: relative;
  padding: clamp(1.3rem, 2.6vw, 1.9rem);
  background: color-mix(in srgb, var(--surface) 74%, transparent);
  border: 1px solid var(--line);
  border-radius: var(--r-md);
  overflow: hidden;
  transition: border-color 240ms var(--ease), transform 240ms var(--ease);
}
.card::before {
  content: "";
  position: absolute;
  inset: 0;
  border-radius: inherit;
  padding: 1px;
  background: linear-gradient(140deg, rgb(var(--glow) / .55), transparent 45%);
  -webkit-mask: linear-gradient(#000 0 0) content-box, linear-gradient(#000 0 0);
  -webkit-mask-composite: xor;
  mask: linear-gradient(#000 0 0) content-box, linear-gradient(#000 0 0);
  mask-composite: exclude;
  opacity: 0;
  transition: opacity 240ms var(--ease);
  pointer-events: none;
}
.card:hover { transform: translateY(-3px); border-color: color-mix(in srgb, var(--accent) 40%, var(--line)); }
.card:hover::before { opacity: 1; }

.card h3 { margin-bottom: .55rem; }
.card p { color: var(--muted); font-size: .97rem; }

.card-num {
  font-family: var(--mono);
  font-size: var(--step--1);
  color: var(--accent);
  letter-spacing: .1em;
  display: block;
  margin-bottom: 1rem;
}

.card-icon {
  width: 40px; height: 40px;
  display: grid; place-items: center;
  border-radius: var(--r-sm);
  background: rgb(var(--glow) / .12);
  color: var(--accent);
  margin-bottom: 1.1rem;
}
.card-icon svg { width: 21px; height: 21px; }

.tick-list { display: grid; gap: .6rem; margin-top: 1.1rem; }
.tick-list li {
  display: flex;
  gap: .65rem;
  align-items: flex-start;
  font-size: .95rem;
  color: var(--muted);
}
.tick-list li::before {
  content: "";
  flex: none;
  width: 1.05rem; height: 1.05rem;
  margin-top: .3rem;
  border-radius: 50%;
  border: 1px solid color-mix(in srgb, var(--accent) 55%, transparent);
  background:
    linear-gradient(45deg, transparent 46%, var(--accent) 46% 54%, transparent 54%) center/60% 60% no-repeat;
}

/* --- 10. Scheduler demo -------------------------------------------------- */

.demo {
  padding: clamp(1rem, 2.4vw, 1.5rem);
  display: grid;
  gap: 1.1rem;
}

.demo-head {
  display: flex;
  flex-wrap: wrap;
  gap: .8rem;
  align-items: center;
  justify-content: space-between;
}
.demo-title {
  font-family: var(--mono);
  font-size: var(--step--1);
  letter-spacing: .14em;
  text-transform: uppercase;
  color: var(--muted);
  display: flex;
  align-items: center;
  gap: .55rem;
}

.demo-controls {
  display: grid;
  gap: .9rem 1.2rem;
  grid-template-columns: repeat(auto-fit, minmax(165px, 1fr));
  padding: 1rem;
  background: var(--surface-2);
  border: 1px solid var(--line);
  border-radius: var(--r-md);
}

.ctl { display: grid; gap: .4rem; }
.ctl > label,
.ctl > .ctl-legend {
  font-size: var(--step--1);
  color: var(--muted);
  display: flex;
  justify-content: space-between;
  gap: .5rem;
  align-items: baseline;
}
.ctl output { font-family: var(--mono); color: var(--accent); }

input[type="range"] {
  -webkit-appearance: none;
  appearance: none;
  width: 100%;
  height: 22px;
  background: transparent;
  cursor: pointer;
}
input[type="range"]::-webkit-slider-runnable-track {
  height: 4px;
  border-radius: 2px;
  background: linear-gradient(90deg, var(--accent) var(--fill, 50%), var(--line) var(--fill, 50%));
}
input[type="range"]::-moz-range-track {
  height: 4px; border-radius: 2px; background: var(--line);
}
input[type="range"]::-moz-range-progress {
  height: 4px; border-radius: 2px; background: var(--accent);
}
input[type="range"]::-webkit-slider-thumb {
  -webkit-appearance: none;
  width: 16px; height: 16px;
  margin-top: -6px;
  border-radius: 50%;
  background: var(--text);
  border: 3px solid var(--accent);
  transition: transform 140ms var(--ease);
}
input[type="range"]::-moz-range-thumb {
  width: 16px; height: 16px;
  border-radius: 50%;
  background: var(--text);
  border: 3px solid var(--accent);
}
input[type="range"]:hover::-webkit-slider-thumb { transform: scale(1.15); }

.switch {
  display: flex;
  align-items: center;
  gap: .65rem;
  font-size: var(--step--1);
  color: var(--muted);
  cursor: pointer;
  user-select: none;
}
.switch input { position: absolute; opacity: 0; width: 0; height: 0; }
.switch .track {
  width: 38px; height: 21px;
  flex: none;
  border-radius: var(--r-pill);
  background: var(--line);
  border: 1px solid var(--line);
  position: relative;
  transition: background 200ms var(--ease);
}
.switch .track::after {
  content: "";
  position: absolute;
  top: 2px; left: 2px;
  width: 15px; height: 15px;
  border-radius: 50%;
  background: var(--muted);
  transition: transform 200ms var(--ease), background 200ms var(--ease);
}
.switch input:checked + .track { background: rgb(var(--glow) / .35); border-color: var(--accent); }
.switch input:checked + .track::after { transform: translateX(17px); background: var(--accent); }
.switch input:focus-visible + .track { outline: 2px solid var(--accent); outline-offset: 3px; }

.board {
  border: 1px solid var(--line);
  border-radius: var(--r-md);
  background: var(--surface-2);
  overflow-x: auto;
  overscroll-behavior-x: contain;
}
.board-inner { min-width: 620px; padding: .9rem 1rem 1.1rem; }

.board-axis,
.board-row {
  display: grid;
  grid-template-columns: 86px repeat(var(--slots, 16), minmax(0, 1fr));
  align-items: center;
  gap: 3px;
}
.board-axis { margin-bottom: .5rem; }
.board-axis span {
  font-family: var(--mono);
  font-size: .66rem;
  color: var(--muted);
  letter-spacing: .04em;
  text-align: center;
}
.board-axis span:first-child { text-align: left; }

.board-row + .board-row { margin-top: 4px; }
.board-row .lane-name {
  font-family: var(--mono);
  font-size: .72rem;
  color: var(--muted);
  padding-right: .5rem;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.slot {
  height: 34px;
  border-radius: 3px;
  background: color-mix(in srgb, var(--bg) 55%, transparent);
  border: 1px solid transparent;
}

.job {
  height: 34px;
  border-radius: 4px;
  display: flex;
  align-items: center;
  padding-inline: .45rem;
  font-size: .7rem;
  font-family: var(--mono);
  letter-spacing: .02em;
  color: var(--ink);
  background: var(--accent);
  border: 1px solid color-mix(in srgb, var(--accent) 70%, #000);
  overflow: hidden;
  white-space: nowrap;
  text-overflow: ellipsis;
  opacity: 0;
  transform: scaleX(.15);
  transform-origin: left center;
  animation: place 380ms var(--ease) forwards;
  animation-delay: var(--delay, 0ms);
}
.job[data-kind="b"] { background: var(--accent-2); border-color: color-mix(in srgb, var(--accent-2) 70%, #000); color: #05070D; }
.job[data-kind="c"] { background: var(--warn); border-color: color-mix(in srgb, var(--warn) 70%, #000); color: #05070D; }
.job[data-late="true"] {
  background: repeating-linear-gradient(135deg, var(--warn) 0 7px, color-mix(in srgb, var(--warn) 70%, #000) 7px 14px);
  color: #05070D;
}

@keyframes place {
  from { opacity: 0; transform: scaleX(.15); }
  to   { opacity: 1; transform: scaleX(1); }
}

.readout {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(120px, 1fr));
  gap: .6rem;
}
.stat {
  padding: .75rem .9rem;
  border: 1px solid var(--line);
  border-radius: var(--r-sm);
  background: var(--surface-2);
}
.stat dt {
  font-size: .68rem;
  letter-spacing: .12em;
  text-transform: uppercase;
  color: var(--muted);
  font-family: var(--mono);
}
.stat dd {
  margin: .3rem 0 0;
  font-family: var(--mono);
  font-size: 1.4rem;
  font-weight: 600;
  color: var(--text);
  font-variant-numeric: tabular-nums;
  line-height: 1.1;
}
.stat dd small { font-size: .8rem; color: var(--muted); font-weight: 400; }

.demo-foot {
  font-size: var(--step--1);
  color: var(--muted);
  border-top: 1px solid var(--line);
  padding-top: .9rem;
  display: flex;
  flex-wrap: wrap;
  gap: .5rem 1.2rem;
  align-items: center;
  justify-content: space-between;
}
.legend { display: flex; flex-wrap: wrap; gap: .9rem; }
.legend span { display: inline-flex; align-items: center; gap: .4rem; }
.legend i {
  width: 11px; height: 11px; border-radius: 3px; display: block;
  background: var(--accent);
}
.legend i.b { background: var(--accent-2); }
.legend i.c { background: var(--warn); }

/* --- 11. Steps ----------------------------------------------------------- */

.steps { counter-reset: step; display: grid; gap: 0; }
.step {
  counter-increment: step;
  display: grid;
  gap: .35rem 1.4rem;
  grid-template-columns: auto 1fr;
  padding: clamp(1.2rem, 3vw, 1.9rem) 0;
  border-top: 1px solid var(--line);
}
.step:last-child { border-bottom: 1px solid var(--line); }
.step::before {
  content: counter(step, decimal-leading-zero);
  grid-row: span 2;
  font-family: var(--mono);
  font-size: .95rem;
  color: var(--accent);
  padding-top: .2rem;
}
.step h3 { align-self: center; }
.step p { color: var(--muted); grid-column: 2; }

/* --- 12. Tabs ------------------------------------------------------------ */

.tabs {
  display: flex;
  flex-wrap: wrap;
  gap: .5rem;
  margin-bottom: 1.6rem;
}
.tab {
  padding: .55rem 1.05rem;
  border: 1px solid var(--line);
  border-radius: var(--r-pill);
  font-size: .92rem;
  color: var(--muted);
  transition: color 160ms var(--ease), border-color 160ms var(--ease), background 160ms var(--ease);
}
.tab:hover { color: var(--text); border-color: var(--accent); }
.tab[aria-selected="true"] {
  background: var(--accent);
  border-color: var(--accent);
  color: var(--ink);
  font-weight: 600;
}

.tabpanel[hidden] { display: none; }
.tabpanel {
  display: grid;
  gap: clamp(1.2rem, 3vw, 2rem);
  animation: fade 320ms var(--ease);
}
@media (min-width: 860px) { .tabpanel { grid-template-columns: 1fr 1fr; align-items: start; } }
@keyframes fade { from { opacity: 0; transform: translateY(6px); } to { opacity: 1; transform: none; } }

.compare { display: grid; gap: .8rem; }
.compare-row {
  display: grid;
  gap: .4rem;
  padding: .9rem 1rem;
  border: 1px solid var(--line);
  border-radius: var(--r-sm);
  background: var(--surface-2);
}
.compare-row b {
  font-family: var(--mono);
  font-size: .68rem;
  letter-spacing: .12em;
  text-transform: uppercase;
  color: var(--muted);
  font-weight: 500;
}
.compare-row[data-tone="after"] b { color: var(--accent); }
.compare-row p { font-size: .95rem; margin: 0; }

/* --- 13. Forms ----------------------------------------------------------- */

.form { display: grid; gap: 1.1rem; }
.field-row { display: grid; gap: 1.1rem; }
@media (min-width: 640px) { .field-row { grid-template-columns: 1fr 1fr; } }

.form-field { display: grid; gap: .4rem; }
.form-field label { font-size: .92rem; font-weight: 550; }
.form-field .hint { font-size: var(--step--1); color: var(--muted); }
.req { color: var(--accent); }

.form-field input,
.form-field textarea,
.form-field select {
  width: 100%;
  padding: .75rem .9rem;
  background: var(--surface-2);
  border: 1px solid var(--line);
  border-radius: var(--r-sm);
  color: var(--text);
  transition: border-color 160ms var(--ease), box-shadow 160ms var(--ease);
}
.form-field textarea { min-height: 8rem; resize: vertical; }
.form-field input:focus,
.form-field textarea:focus,
.form-field select:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgb(var(--glow) / .22);
}
.form-field input::placeholder,
.form-field textarea::placeholder { color: color-mix(in srgb, var(--muted) 70%, transparent); }

.err {
  font-size: var(--step--1);
  color: var(--warn);
  min-height: 1.2em;
}
.form-field[data-invalid="true"] input,
.form-field[data-invalid="true"] textarea { border-color: var(--warn); }

.form-status {
  padding: .9rem 1rem;
  border-radius: var(--r-sm);
  border: 1px solid var(--line);
  background: var(--surface-2);
  font-size: .95rem;
}
.form-status[hidden] { display: none; }
.form-status[data-tone="ok"] { border-color: var(--accent); }
.form-status[data-tone="bad"] { border-color: var(--warn); }

/* --- 14. Contact tiles --------------------------------------------------- */

.tile {
  display: grid;
  gap: .5rem;
  padding: 1.2rem 1.3rem;
  border: 1px solid var(--line);
  border-radius: var(--r-md);
  background: color-mix(in srgb, var(--surface) 74%, transparent);
}
.tile .label {
  font-family: var(--mono);
  font-size: .68rem;
  letter-spacing: .14em;
  text-transform: uppercase;
  color: var(--muted);
}
.tile .value {
  font-size: var(--step-1);
  font-weight: 600;
  text-decoration: none;
  letter-spacing: -.01em;
  word-break: break-word;
}
.tile .value:hover { color: var(--accent); }
.tile p { font-size: .9rem; color: var(--muted); margin: 0; }

.copy-btn {
  justify-self: start;
  font-family: var(--mono);
  font-size: .72rem;
  letter-spacing: .08em;
  text-transform: uppercase;
  color: var(--muted);
  border: 1px solid var(--line);
  border-radius: var(--r-sm);
  padding: .3rem .6rem;
  transition: color 160ms var(--ease), border-color 160ms var(--ease);
}
.copy-btn:hover { color: var(--accent); border-color: var(--accent); }
.copy-btn[data-done="true"] { color: var(--accent); border-color: var(--accent); }

/* --- 15. Call band ------------------------------------------------------- */

.band {
  padding: clamp(1.8rem, 5vw, 3.2rem);
  border-radius: var(--r-lg);
  border: 1px solid var(--line);
  background:
    radial-gradient(ellipse 70% 130% at 12% 0%, rgb(var(--glow) / .16), transparent 62%),
    color-mix(in srgb, var(--surface) 88%, transparent);
  display: grid;
  gap: 1.4rem;
}
@media (min-width: 880px) {
  .band { grid-template-columns: 1.3fr auto; align-items: center; gap: 2.5rem; }
}
.band h2 { font-size: var(--step-2); }
.band p { color: var(--muted); margin-top: .6rem; }

/* --- 16. Footer ---------------------------------------------------------- */

.site-footer {
  border-top: 1px solid var(--line);
  margin-top: clamp(3rem, 8vw, 6rem);
  padding-block: clamp(2.5rem, 6vw, 4rem) 2rem;
  background: color-mix(in srgb, var(--surface) 55%, transparent);
}
.footer-grid {
  display: grid;
  gap: 2rem;
}
@media (min-width: 760px)  { .footer-grid { grid-template-columns: 1.5fr 1fr 1fr; } }
@media (min-width: 1040px) { .footer-grid { grid-template-columns: 2fr 1fr 1fr 1.2fr; } }

.footer-grid h2 {
  font-size: .7rem;
  font-family: var(--mono);
  letter-spacing: .14em;
  text-transform: uppercase;
  color: var(--muted);
  margin-bottom: 1rem;
  font-weight: 500;
}
.footer-links { display: grid; gap: .55rem; }
.footer-links a {
  text-decoration: none;
  font-size: .94rem;
  color: var(--muted);
  transition: color 160ms var(--ease);
}
.footer-links a:hover { color: var(--accent); }

.footer-blurb { color: var(--muted); font-size: .94rem; max-width: 34ch; margin-top: 1rem; }

.colophon {
  margin-top: 2.5rem;
  padding-top: 1.4rem;
  border-top: 1px solid var(--line);
  display: flex;
  flex-wrap: wrap;
  gap: .6rem 1.4rem;
  justify-content: space-between;
  font-size: .85rem;
  color: var(--muted);
}
.colophon a { text-decoration: none; }
.colophon a:hover { color: var(--accent); }

/* Utility classes exist so no page needs an inline style attribute,
   which lets the Content Security Policy stay strict. */
.mt-m { margin-top: clamp(1.4rem, 3vw, 2rem); }
.mt-l { margin-top: clamp(1.8rem, 4vw, 2.6rem); }
.measure { max-width: 70ch; }

.notice {
  font-size: .89rem;
  color: var(--warn);
  border-left: 2px solid var(--warn);
  padding-left: .85rem;
  margin: 0;
}
.notice[hidden] { display: none; }

.todo {
  border: 1px dashed color-mix(in srgb, var(--warn) 60%, transparent);
  border-radius: var(--r-sm);
  padding: .8rem 1rem;
  font-size: .88rem;
  color: var(--muted);
  background: color-mix(in srgb, var(--warn) 7%, transparent);
}
.todo b { color: var(--warn); font-weight: 600; }

/* --- 17. Prose (legal pages) --------------------------------------------- */

.prose { max-width: 74ch; }
.prose > * + * { margin-top: 1.1rem; }
.prose h2 {
  font-size: var(--step-2);
  margin-top: 2.8rem;
  padding-top: 1.6rem;
  border-top: 1px solid var(--line);
}
.prose h3 { margin-top: 1.9rem; font-size: var(--step-1); }
.prose p, .prose li { color: var(--muted); }
.prose strong { color: var(--text); font-weight: 600; }
.prose ul, .prose ol { padding-left: 1.3rem; display: grid; gap: .5rem; }
.prose li::marker { color: var(--accent); }
.prose table {
  width: 100%;
  border-collapse: collapse;
  font-size: .93rem;
  display: block;
  overflow-x: auto;
}
.prose th, .prose td {
  text-align: left;
  padding: .7rem .8rem;
  border-bottom: 1px solid var(--line);
  vertical-align: top;
}
.prose th { color: var(--text); font-weight: 600; white-space: nowrap; }
.prose td { color: var(--muted); }

.page-head { padding-block: clamp(2.5rem, 7vw, 4.5rem) clamp(1.5rem, 4vw, 2.5rem); }
.page-head h1 { font-size: var(--step-3); }
.page-head .lede { margin-top: 1rem; }

.crumbs {
  font-family: var(--mono);
  font-size: var(--step--1);
  color: var(--muted);
  margin-bottom: 1rem;
}
.crumbs a { text-decoration: none; }
.crumbs a:hover { color: var(--accent); }
.crumbs span { margin-inline: .4rem; opacity: .5; }

/* --- 18. Reveal ---------------------------------------------------------- */

/* Gated on .js, added by theme.js before first paint. With scripting off or
   broken the copy simply shows, which is the safe default. */
.js [data-reveal] {
  opacity: 0;
  transform: translateY(18px);
  transition: opacity 620ms var(--ease), transform 620ms var(--ease);
  transition-delay: var(--reveal-delay, 0ms);
}
.js [data-reveal].is-in { opacity: 1; transform: none; }

/* --- 19. Consent notice -------------------------------------------------- */

.consent {
  position: fixed;
  left: 50%;
  bottom: 1rem;
  transform: translateX(-50%);
  z-index: 150;
  width: min(100% - 2rem, 640px);
  padding: 1.1rem 1.2rem;
  border-radius: var(--r-md);
  border: 1px solid var(--line);
  background: var(--surface);
  box-shadow: var(--shadow-2);
  display: grid;
  gap: .9rem;
  font-size: .93rem;
}
.consent[hidden] { display: none; }
@media (min-width: 700px) {
  .consent { grid-template-columns: 1fr auto; align-items: center; gap: 1.4rem; }
}
.consent p { color: var(--muted); margin: 0; }

/* --- 20. Motion & print -------------------------------------------------- */

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after {
    animation-duration: .001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: .001ms !important;
    scroll-behavior: auto !important;
  }
  .js [data-reveal] { opacity: 1; transform: none; }
  .job { opacity: 1; transform: none; }
  .btn:hover, .card:hover { transform: none; }
}

@media print {
  .field, .mesh, .site-header, .consent, .demo-controls, .btn { display: none !important; }
  body { background: #fff; color: #000; }
  .prose p, .prose li { color: #222; }
}