/* ==========================================================================
   RankVoxel — site styles (single file, no build step)
   1 Fonts · 2 Tokens · 3 Base · 4 Layout · 5 Components · 6 Sections · 7 Motion
   ========================================================================== */

/* 1. Fonts (self-hosted variable fonts, latin subset) ---------------------- */
@font-face {
  font-family: "Inter";
  font-style: normal;
  font-weight: 100 900;
  font-display: swap;
  src: url("../fonts/inter-latin-wght-normal.woff2") format("woff2");
  unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC, U+2000-206F, U+20AC, U+2122, U+2191, U+2193, U+2212, U+2215, U+FEFF, U+FFFD;
}
@font-face {
  font-family: "Plus Jakarta Sans";
  font-style: normal;
  font-weight: 200 800;
  font-display: swap;
  src: url("../fonts/plus-jakarta-sans-latin-wght-normal.woff2") format("woff2");
  unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC, U+2000-206F, U+20AC, U+2122, U+2191, U+2193, U+2212, U+2215, U+FEFF, U+FFFD;
}

/* 2. Tokens ---------------------------------------------------------------- */
:root {
  color-scheme: dark;

  --bg: #0a0b10;
  --bg-soft: #0e1017;
  --surface: #12141c;
  --surface-2: #191c27;
  --line: rgba(255, 255, 255, 0.08);
  --line-strong: rgba(255, 255, 255, 0.16);

  --text: #f2f3f7;
  --text-2: #a7adbd;
  --text-3: #8088a0;

  --accent: #5558ee;
  --accent-hover: #6669f5;
  --accent-text: #a5a9ff;
  --accent-soft: rgba(129, 140, 248, 0.14);
  --on-accent: #ffffff;

  --danger: #f87171;
  --success: #34d399;

  /* isometric "voxel" artwork */
  --vx-top: #2b2f42;
  --vx-left: #1d2030;
  --vx-right: #161926;
  --vx-a-top: #9297ff;
  --vx-a-left: #5b5fef;
  --vx-a-right: #4145c4;

  --font-body: "Inter", system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --font-display: "Plus Jakarta Sans", "Inter", system-ui, -apple-system, "Segoe UI", Roboto, Arial, sans-serif;

  --radius-sm: 8px;
  --radius: 12px;
  --radius-lg: 20px;
  --radius-xl: 28px;

  --shadow-card: 0 1px 0 rgba(255, 255, 255, 0.03) inset, 0 24px 48px -32px rgba(0, 0, 0, 0.8);
  --ease: cubic-bezier(0.22, 1, 0.36, 1);

  --container: 1200px;
  --gutter: clamp(20px, 4vw, 40px);
  --header-h: 72px;
  --section-y: clamp(72px, 9vw, 120px);
}

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

  --bg: #fafafb;
  --bg-soft: #f2f3f7;
  --surface: #ffffff;
  --surface-2: #f4f5f9;
  --line: rgba(10, 11, 16, 0.09);
  --line-strong: rgba(10, 11, 16, 0.18);

  --text: #0b0c12;
  --text-2: #4a5166;
  --text-3: #666d82;

  --accent: #4f46e5;
  --accent-hover: #4338ca;
  --accent-text: #4338ca;
  --accent-soft: rgba(79, 70, 229, 0.09);

  --danger: #b91c1c;
  --success: #047857;

  --vx-top: #e9ebf3;
  --vx-left: #d8dbe8;
  --vx-right: #c7cbdc;
  --vx-a-top: #8087f7;
  --vx-a-left: #5a55ec;
  --vx-a-right: #3f39c4;

  --shadow-card: 0 1px 2px rgba(10, 11, 16, 0.04), 0 18px 40px -28px rgba(10, 11, 16, 0.25);
}

/* 3. Base ------------------------------------------------------------------ */
*, *::before, *::after { box-sizing: border-box; }
html {
  -webkit-text-size-adjust: 100%;
  text-size-adjust: 100%;
  scroll-padding-top: calc(var(--header-h) + 16px);
}
@media (prefers-reduced-motion: no-preference) {
  html { scroll-behavior: smooth; }
}
html.menu-open { overflow: hidden; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-body);
  font-size: 1rem;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
}

h1, h2, h3, h4 {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 700;
  line-height: 1.15;
  letter-spacing: -0.025em;
  color: var(--text);
  text-wrap: balance;
}
p { margin: 0; color: var(--text-2); text-wrap: pretty; }
ul, ol, dl, dd { margin: 0; padding: 0; }
ul, ol { list-style: none; }
a { color: inherit; text-decoration: none; }
img, svg { display: block; max-width: 100%; }
button { font: inherit; color: inherit; cursor: pointer; }
[hidden] { display: none !important; }

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

:focus-visible {
  outline: 2px solid var(--accent-text);
  outline-offset: 3px;
  border-radius: 6px;
}

.skip-link {
  position: fixed; top: 12px; left: 12px; z-index: 1000;
  padding: 10px 16px; border-radius: var(--radius-sm);
  background: var(--accent); color: var(--on-accent); font-weight: 600;
  transform: translateY(-160%);
  transition: transform 0.2s var(--ease);
}
.skip-link:focus { transform: none; }

.sr-only {
  position: absolute; width: 1px; height: 1px; margin: -1px; padding: 0;
  overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; border: 0;
}

/* Icons come from an inline SVG sprite; stroke style lives here. */
.icon {
  width: 1.25em; height: 1.25em; flex: none;
  fill: none; stroke: currentColor; stroke-width: 2;
  stroke-linecap: round; stroke-linejoin: round;
}

/* 4. Layout ---------------------------------------------------------------- */
.container {
  width: 100%;
  max-width: calc(var(--container) + var(--gutter) * 2);
  margin-inline: auto;
  padding-inline: var(--gutter);
}

.section { padding-block: var(--section-y); }
.section--alt {
  background: var(--bg-soft);
  border-block: 1px solid var(--line);
}
.section-head { max-width: 680px; margin-bottom: clamp(36px, 5vw, 56px); }
.section-head h2 { font-size: clamp(1.75rem, 1.25rem + 2vw, 2.75rem); line-height: 1.1; }
.section-head p { margin-top: 16px; font-size: 1.0625rem; }

.eyebrow {
  display: inline-flex; align-items: center; gap: 10px;
  margin-bottom: 16px;
  font-size: 0.75rem; font-weight: 600; letter-spacing: 0.1em; text-transform: uppercase;
  color: var(--accent-text);
}
.eyebrow::before {
  content: ""; width: 8px; height: 8px; border-radius: 2px;
  background: var(--accent); transform: rotate(45deg);
}

.grid { display: grid; gap: 16px; }
.grid--4 { grid-template-columns: repeat(4, minmax(0, 1fr)); }
.grid--3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.grid--2 { grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 20px; }
@media (max-width: 1040px) {
  .grid--4 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .grid--3 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}
@media (max-width: 720px) {
  .grid--4, .grid--3, .grid--2 { grid-template-columns: minmax(0, 1fr); }
}

/* 5. Components ------------------------------------------------------------ */

/* Buttons */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  min-height: 44px; padding: 0 20px;
  border: 1px solid transparent; border-radius: var(--radius);
  font-size: 0.9375rem; font-weight: 600; line-height: 1; white-space: nowrap;
  transition: background-color 0.2s var(--ease), border-color 0.2s var(--ease),
              transform 0.2s var(--ease), box-shadow 0.2s var(--ease), color 0.2s var(--ease);
}
.btn .icon { width: 1.1em; height: 1.1em; transition: transform 0.25s var(--ease); }
.btn--lg { min-height: 52px; padding: 0 26px; font-size: 1rem; }
.btn--sm { min-height: 40px; padding: 0 16px; font-size: 0.875rem; }
.btn--primary {
  background: var(--accent); color: var(--on-accent);
  box-shadow: 0 1px 0 rgba(255, 255, 255, 0.18) inset, 0 8px 20px -10px var(--accent);
}
.btn--primary:hover { background: var(--accent-hover); }
:root[data-theme="light"] .btn--primary:hover { background: var(--accent-hover); }
.btn--secondary {
  background: transparent; color: var(--text); border-color: var(--line-strong);
}
.btn--secondary:hover { background: var(--surface-2); border-color: var(--text-3); }
.btn:active { transform: translateY(1px); }
.btn[disabled], .btn[aria-busy="true"] { opacity: 0.65; pointer-events: none; }
.btn--block { width: 100%; }
@media (hover: hover) {
  .btn:hover .icon--nudge { transform: translate(2px, -2px); }
  .btn:hover .icon--slide { transform: translateX(3px); }
}

.link-arrow {
  display: inline-flex; align-items: center; gap: 6px;
  font-weight: 600; font-size: 0.9375rem; color: var(--accent-text);
}
.link-arrow .icon { width: 1.05em; height: 1.05em; transition: transform 0.25s var(--ease); }
.link-arrow:hover .icon { transform: translate(2px, -2px); }

/* Header / navigation */
.site-header {
  position: sticky; top: 0; z-index: 100;
  background: var(--bg);
  border-bottom: 1px solid var(--line);
}
@supports (backdrop-filter: blur(1px)) {
  .site-header {
    background: color-mix(in srgb, var(--bg) 82%, transparent);
    backdrop-filter: saturate(160%) blur(14px);
    -webkit-backdrop-filter: saturate(160%) blur(14px);
  }
}
.nav { height: var(--header-h); display: flex; align-items: center; gap: 24px; }
.brand {
  display: inline-flex; align-items: center; gap: 10px; flex: none;
  font-family: var(--font-display); font-weight: 700; font-size: 1.125rem; letter-spacing: -0.02em;
}
.brand-mark { width: 30px; height: 30px; }
.nav-links { display: flex; gap: 2px; margin-inline: auto; }
.nav-links a {
  position: relative; padding: 8px 14px; border-radius: var(--radius-sm);
  font-size: 0.9375rem; font-weight: 500; color: var(--text-2);
  transition: color 0.2s var(--ease), background-color 0.2s var(--ease);
}
.nav-links a:hover { color: var(--text); background: var(--surface-2); }
.nav-links a[aria-current="page"] { color: var(--text); }
.nav-links a[aria-current="page"]::after {
  content: ""; position: absolute; left: 50%; bottom: 0; width: 16px; height: 2px;
  margin-left: -8px; border-radius: 2px; background: var(--accent);
}
.nav-actions { display: flex; align-items: center; gap: 10px; }

.icon-btn {
  position: relative; width: 44px; height: 44px; display: grid; place-items: center;
  border: 1px solid var(--line-strong); border-radius: var(--radius); background: transparent;
  color: var(--text);
  transition: background-color 0.2s var(--ease), border-color 0.2s var(--ease);
}
.icon-btn:hover { background: var(--surface-2); border-color: var(--text-3); }
.icon-btn .icon { grid-area: 1 / 1; width: 20px; height: 20px; }
/* theme toggle shows the icon for the theme you would switch TO */
#themeToggle .i-sun { display: none; }
:root[data-theme="dark"] #themeToggle .i-moon { display: none; }
:root[data-theme="dark"] #themeToggle .i-sun { display: block; }
:root[data-theme="light"] #themeToggle .i-sun { display: none; }
:root[data-theme="light"] #themeToggle .i-moon { display: block; }

.menu-toggle { display: none; }
.menu-toggle .i-close { display: none; }
.menu-toggle[aria-expanded="true"] .i-open { display: none; }
.menu-toggle[aria-expanded="true"] .i-close { display: block; }

.mobile-menu {
  position: absolute; top: 100%; left: 0; right: 0;
  max-height: calc(100dvh - var(--header-h)); overflow-y: auto;
  padding: 8px var(--gutter) 28px;
  background: var(--bg); border-bottom: 1px solid var(--line);
  animation: menuIn 0.25s var(--ease);
}
.mobile-menu a:not(.btn) {
  display: flex; align-items: center; justify-content: space-between;
  min-height: 56px; border-bottom: 1px solid var(--line);
  font-family: var(--font-display); font-size: 1.125rem; font-weight: 600; letter-spacing: -0.01em;
}
.mobile-menu a[aria-current="page"] { color: var(--accent-text); }
.mobile-menu .btn { margin-top: 20px; }
@keyframes menuIn { from { opacity: 0; transform: translateY(-8px); } }

@media (max-width: 900px) {
  .nav-links, .nav-cta { display: none; }
  .menu-toggle { display: grid; }
  .nav-actions { margin-left: auto; }
}
@media (min-width: 901px) {
  .mobile-menu { display: none !important; }
}
/* Without JS the hamburger cannot work, so keep the links visible in a scrollable row. */
@media (max-width: 900px) {
  html:not(.js) .nav { flex-wrap: wrap; height: auto; padding-block: 12px; gap: 8px 16px; }
  html:not(.js) .nav-links { display: flex; order: 3; width: 100%; overflow-x: auto; margin: 0; }
  html:not(.js) .menu-toggle { display: none; }
}

/* Cards, tags, chips */
.card {
  position: relative; display: flex; flex-direction: column; gap: 12px;
  padding: 28px;
  background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius-lg);
  box-shadow: var(--shadow-card);
  transition: border-color 0.25s var(--ease), transform 0.25s var(--ease), background-color 0.25s var(--ease);
}
.card h3 { font-size: 1.125rem; letter-spacing: -0.02em; }
.card p { font-size: 0.9375rem; }
@media (hover: hover) {
  .card--link:hover { border-color: var(--line-strong); transform: translateY(-3px); }
  .card--link:hover .card-arrow { color: var(--accent-text); transform: translate(2px, -2px); }
}
.card--link h3 a::after { content: ""; position: absolute; inset: 0; border-radius: inherit; }
.card--link h3 a:focus-visible { outline: none; }
.card--link:has(h3 a:focus-visible) { outline: 2px solid var(--accent-text); outline-offset: 3px; }
.card-arrow {
  position: absolute; top: 24px; right: 24px; width: 20px; height: 20px; color: var(--text-3);
  transition: color 0.25s var(--ease), transform 0.25s var(--ease);
}

.icon-tile {
  display: grid; place-items: center; width: 44px; height: 44px; margin-bottom: 8px;
  border-radius: var(--radius); background: var(--accent-soft); color: var(--accent-text);
}
.icon-tile .icon { width: 22px; height: 22px; }

.tag {
  display: inline-flex; align-items: center; padding: 4px 10px; border-radius: 999px;
  background: var(--accent-soft); color: var(--accent-text);
  font-size: 0.75rem; font-weight: 600; letter-spacing: 0.02em; line-height: 1.4;
}
.chips { display: flex; flex-wrap: wrap; gap: 8px; }
.chips li, .chip {
  padding: 4px 10px; border: 1px solid var(--line-strong); border-radius: 8px;
  font-size: 0.8125rem; line-height: 1.5; color: var(--text-2); background: transparent;
}

.pill {
  display: inline-flex; align-items: center; gap: 10px;
  padding: 6px 14px 6px 12px; border: 1px solid var(--line-strong); border-radius: 999px;
  background: var(--surface); color: var(--text-2); font-size: 0.8125rem; font-weight: 500;
}
.pill::before { content: ""; width: 7px; height: 7px; border-radius: 2px; background: var(--accent); transform: rotate(45deg); flex: none; }

/* Breadcrumb */
.breadcrumb { margin-bottom: 24px; }
.breadcrumb ol { display: flex; flex-wrap: wrap; align-items: center; gap: 6px; font-size: 0.875rem; color: var(--text-3); }
.breadcrumb li { display: inline-flex; align-items: center; gap: 6px; }
.breadcrumb a { color: var(--text-2); }
.breadcrumb a:hover { color: var(--accent-text); text-decoration: underline; text-underline-offset: 3px; }
.breadcrumb .icon { width: 14px; height: 14px; color: var(--text-3); }

/* Forms */
.field { display: grid; gap: 8px; }
.field + .field { margin-top: 20px; }
.field > label, .field > .label, legend.label { font-size: 0.875rem; font-weight: 600; color: var(--text); }
.field .opt { font-weight: 400; color: var(--text-3); }
.input, .select, .textarea {
  width: 100%; min-height: 48px; padding: 12px 14px;
  background: var(--bg); color: var(--text);
  border: 1px solid var(--line-strong); border-radius: var(--radius);
  font: inherit; font-size: 1rem; line-height: 1.4;
  transition: border-color 0.2s var(--ease), box-shadow 0.2s var(--ease);
}
.textarea { min-height: 112px; resize: vertical; }
.input::placeholder, .textarea::placeholder { color: var(--text-3); opacity: 1; }
.input:hover, .select:hover, .textarea:hover { border-color: var(--text-3); }
.input:focus-visible, .select:focus-visible, .textarea:focus-visible {
  outline: none; border-color: var(--accent-text);
  box-shadow: 0 0 0 3px var(--accent-soft), 0 0 0 1px var(--accent-text);
}
.select {
  appearance: none; -webkit-appearance: none; padding-right: 44px;
  background-image: linear-gradient(45deg, transparent 50%, var(--text-2) 50%),
                    linear-gradient(135deg, var(--text-2) 50%, transparent 50%);
  background-position: calc(100% - 22px) 52%, calc(100% - 17px) 52%;
  background-size: 5px 5px, 5px 5px; background-repeat: no-repeat;
}
.input[aria-invalid="true"], .textarea[aria-invalid="true"] { border-color: var(--danger); }
.field-error {
  display: flex; align-items: flex-start; gap: 6px;
  font-size: 0.8125rem; font-weight: 500; color: var(--danger);
}
.field-error .icon { width: 15px; height: 15px; margin-top: 2px; }
.hp { position: absolute; left: -9999px; width: 1px; height: 1px; overflow: hidden; }
.form-note { font-size: 0.8125rem; color: var(--text-3); }
.form-alert {
  display: flex; gap: 10px; align-items: flex-start; margin-top: 16px; padding: 12px 14px;
  border: 1px solid color-mix(in srgb, var(--danger) 45%, transparent); border-radius: var(--radius);
  background: color-mix(in srgb, var(--danger) 10%, transparent);
  font-size: 0.875rem; color: var(--text);
}
.form-alert .icon { color: var(--danger); margin-top: 2px; }
.form-alert a { color: var(--accent-text); text-decoration: underline; text-underline-offset: 3px; }

fieldset { margin: 0; padding: 0; border: 0; min-width: 0; }
.choice-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 12px; }
@media (max-width: 480px) { .choice-grid { grid-template-columns: minmax(0, 1fr); } }
.choice {
  position: relative; display: flex; align-items: center; gap: 12px;
  min-height: 56px; padding: 12px 16px;
  background: var(--bg); border: 1px solid var(--line-strong); border-radius: var(--radius);
  font-size: 0.9375rem; font-weight: 500; cursor: pointer;
  transition: border-color 0.2s var(--ease), background-color 0.2s var(--ease);
}
.choice:hover { border-color: var(--text-3); }
.choice input { position: absolute; inset: 0; width: 100%; height: 100%; margin: 0; opacity: 0; cursor: pointer; }
.choice-box {
  flex: none; display: grid; place-items: center; width: 20px; height: 20px;
  border: 1.5px solid var(--text-3); border-radius: 6px;
  transition: background-color 0.2s var(--ease), border-color 0.2s var(--ease);
}
.choice-box .icon { width: 13px; height: 13px; stroke: var(--on-accent); stroke-width: 3; opacity: 0; }
.choice input:checked ~ .choice-box { background: var(--accent); border-color: var(--accent); }
.choice input:checked ~ .choice-box .icon { opacity: 1; }
.choice:has(input:checked) { border-color: var(--accent-text); background: var(--accent-soft); }
.choice:has(input:focus-visible) { outline: 2px solid var(--accent-text); outline-offset: 2px; }

.form-card {
  padding: clamp(24px, 4vw, 40px);
  background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius-xl);
  box-shadow: var(--shadow-card);
}
.progress { margin-bottom: 28px; }
.progress-label { display: flex; justify-content: space-between; margin-bottom: 10px; font-size: 0.8125rem; font-weight: 600; color: var(--text-2); }
.progress-bar { display: flex; gap: 6px; }
.progress-seg { flex: 1; height: 4px; border-radius: 2px; background: var(--line-strong); transition: background-color 0.3s var(--ease); }
.progress-seg.is-done { background: var(--accent); }
.form-step h3 { margin-bottom: 20px; font-size: 1.375rem; }
.form-step h3:focus { outline: none; }
.form-step:not([hidden]) { animation: rise 0.4s var(--ease); }
.form-nav { display: flex; gap: 12px; margin-top: 28px; }
.form-nav .btn { flex: 1; }
.form-nav .btn--secondary { flex: 0 0 auto; }

.form-success { text-align: left; }
.form-success:focus { outline: none; }
.form-success .success-icon {
  display: grid; place-items: center; width: 52px; height: 52px; margin-bottom: 18px;
  border-radius: 50%; background: color-mix(in srgb, var(--success) 16%, transparent); color: var(--success);
}
.form-success .success-icon .icon { width: 26px; height: 26px; }
.form-success h3 { font-size: 1.375rem; margin-bottom: 8px; }
.form-success p + .btn, .form-success p + p { margin-top: 16px; }
.form-success a:not(.btn) { color: var(--accent-text); text-decoration: underline; text-underline-offset: 3px; }

/* Accordion (capabilities pillars + FAQ) */
.acc-item { border: 1px solid var(--line); border-radius: var(--radius-lg); background: var(--surface); overflow: hidden; transition: border-color 0.25s var(--ease); }
.acc-item + .acc-item { margin-top: 16px; }
.acc-item.is-open { border-color: var(--line-strong); }
.acc-head { margin: 0; font-size: inherit; }
.acc-trigger {
  display: flex; align-items: center; justify-content: space-between; gap: 20px;
  width: 100%; padding: 24px 28px; background: transparent; border: 0; text-align: left;
  color: var(--text); transition: background-color 0.2s var(--ease);
}
.acc-trigger:hover { background: var(--surface-2); }
.acc-trigger:focus-visible { outline-offset: -3px; border-radius: var(--radius-lg); }
.acc-title { display: flex; align-items: center; gap: 16px; font-family: var(--font-display); font-size: clamp(1.0625rem, 0.95rem + 0.6vw, 1.375rem); font-weight: 700; letter-spacing: -0.02em; }
.acc-idx { font-size: 0.8125rem; font-weight: 600; color: var(--text-3); letter-spacing: 0.04em; }
.acc-trigger .icon { width: 20px; height: 20px; color: var(--text-3); transition: transform 0.3s var(--ease), color 0.2s var(--ease); }
.acc-item.is-open .acc-trigger .icon { transform: rotate(45deg); color: var(--accent-text); }
.acc-panel { display: grid; grid-template-rows: 1fr; }
.acc-inner { min-height: 0; overflow: hidden; }
.js .acc-panel {
  grid-template-rows: 0fr; visibility: hidden;
  transition: grid-template-rows 0.35s var(--ease), visibility 0s linear 0.35s;
}
.js .acc-item.is-open .acc-panel { grid-template-rows: 1fr; visibility: visible; transition-delay: 0s; }

/* Filters */
.filters { display: flex; flex-wrap: wrap; gap: 8px; }
.filter-btn {
  min-height: 44px; padding: 0 18px; border: 1px solid var(--line-strong); border-radius: 999px;
  background: transparent; color: var(--text-2); font-size: 0.875rem; font-weight: 600;
  transition: background-color 0.2s var(--ease), border-color 0.2s var(--ease), color 0.2s var(--ease);
}
.filter-btn:hover { border-color: var(--text-3); color: var(--text); }
.filter-btn[aria-pressed="true"] { background: var(--text); border-color: var(--text); color: var(--bg); }
.filter-status { margin: 16px 0 28px; font-size: 0.875rem; color: var(--text-3); }
.fade-in { animation: rise 0.45s var(--ease) backwards; }

/* CTA panel */
.cta-panel {
  position: relative; overflow: hidden;
  display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); gap: clamp(28px, 5vw, 64px); align-items: center;
  padding: clamp(28px, 5vw, 56px);
  background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius-xl);
  box-shadow: var(--shadow-card);
}
.cta-panel h2 { font-size: clamp(1.625rem, 1.2rem + 1.6vw, 2.375rem); line-height: 1.12; margin-bottom: 14px; }
.cta-panel--simple { grid-template-columns: minmax(0, 1fr); justify-items: start; gap: 0; }
.cta-panel--simple p { max-width: 540px; }
.cta-panel--simple .btn { margin-top: 24px; }
.cta-points { display: grid; gap: 10px; margin-top: 22px; }
.cta-points li { display: flex; gap: 10px; align-items: flex-start; font-size: 0.9375rem; color: var(--text-2); }
.cta-points .icon { margin-top: 3px; width: 1.05em; height: 1.05em; color: var(--accent-text); }
@media (max-width: 860px) { .cta-panel { grid-template-columns: minmax(0, 1fr); } }

/* Footer */
.site-footer { padding: clamp(48px, 6vw, 72px) 0 32px; border-top: 1px solid var(--line); background: var(--bg); }
.footer-grid { display: grid; grid-template-columns: 1.6fr 1fr 1fr 1.3fr; gap: 40px; }
.footer-brand p { margin-top: 16px; max-width: 320px; font-size: 0.9375rem; }
.footer-col h2 { margin-bottom: 14px; font-family: var(--font-body); font-size: 0.75rem; font-weight: 600; letter-spacing: 0.1em; text-transform: uppercase; color: var(--text-3); }
.footer-col ul { display: grid; gap: 4px; }
.footer-col a, .footer-col li > span { display: inline-flex; align-items: center; gap: 8px; min-height: 32px; font-size: 0.9375rem; color: var(--text-2); }
.footer-col a:hover { color: var(--text); }
.footer-col .icon { width: 16px; height: 16px; color: var(--text-3); }
.social { display: flex; gap: 8px; margin-top: 20px; }
.social a {
  display: grid; place-items: center; width: 40px; height: 40px;
  border: 1px solid var(--line-strong); border-radius: var(--radius); color: var(--text-2);
  transition: color 0.2s var(--ease), border-color 0.2s var(--ease), background-color 0.2s var(--ease);
}
.social a:hover { color: var(--text); border-color: var(--text-3); background: var(--surface-2); }
.social .icon { width: 18px; height: 18px; }
.footer-bottom {
  display: flex; flex-wrap: wrap; justify-content: space-between; gap: 8px 24px;
  margin-top: clamp(36px, 5vw, 56px); padding-top: 24px; border-top: 1px solid var(--line);
}
.footer-bottom p { font-size: 0.8125rem; color: var(--text-3); }
@media (max-width: 960px) { .footer-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); } .footer-brand { grid-column: 1 / -1; } }
@media (max-width: 520px) { .footer-grid { grid-template-columns: minmax(0, 1fr); gap: 32px; } }

/* 6. Sections / pages ------------------------------------------------------ */

/* Home hero */
.hero { position: relative; overflow: hidden; padding: clamp(48px, 8vw, 96px) 0 clamp(56px, 8vw, 88px); }
.hero::before {
  content: ""; position: absolute; inset: 0; pointer-events: none;
  background-image: radial-gradient(var(--line-strong) 1px, transparent 1.2px);
  background-size: 28px 28px;
  -webkit-mask-image: radial-gradient(ellipse 60% 70% at 78% 30%, #000, transparent 75%);
          mask-image: radial-gradient(ellipse 60% 70% at 78% 30%, #000, transparent 75%);
}
.hero-grid { position: relative; display: grid; grid-template-columns: minmax(0, 1.35fr) minmax(0, 0.65fr); gap: clamp(24px, 5vw, 64px); align-items: center; }
.hero h1 { margin-top: 24px; font-size: clamp(2.375rem, 1.5rem + 4.2vw, 4.5rem); line-height: 1.02; letter-spacing: -0.04em; font-weight: 800; }
.hero h1 span { display: inline-block; }
.hero h1 .accent { color: var(--accent-text); }
.hero .lead { max-width: 600px; margin-top: 24px; font-size: clamp(1.0625rem, 1rem + 0.4vw, 1.25rem); line-height: 1.6; }
.hero-cta { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 36px; }
.stats { display: flex; flex-wrap: wrap; gap: 24px clamp(28px, 5vw, 56px); margin-top: clamp(40px, 6vw, 56px); padding-top: 28px; border-top: 1px solid var(--line); }
.stat { display: flex; flex-direction: column-reverse; gap: 2px; }
.stat dd { font-family: var(--font-display); font-size: clamp(1.75rem, 1.4rem + 1.2vw, 2.375rem); font-weight: 700; letter-spacing: -0.03em; line-height: 1.1; color: var(--text); font-variant-numeric: tabular-nums; }
.stat dt { max-width: 18ch; font-size: 0.875rem; color: var(--text-3); line-height: 1.4; }
.hero-art { justify-self: end; width: 100%; max-width: 420px; }
.hero-art svg { width: 100%; height: auto; overflow: visible; }
@media (max-width: 960px) {
  .hero-grid { grid-template-columns: minmax(0, 1fr); }
  .hero-art { display: none; }
  .hero::before { -webkit-mask-image: radial-gradient(ellipse 80% 60% at 60% 20%, #000, transparent 75%); mask-image: radial-gradient(ellipse 80% 60% at 60% 20%, #000, transparent 75%); }
}
@media (max-width: 520px) {
  .hero-cta .btn { width: 100%; }
  .stats { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 16px; }
  .stat dt { font-size: 0.8125rem; }
}

/* Isometric voxel art */
.vx-t { fill: var(--vx-top); }
.vx-l { fill: var(--vx-left); }
.vx-r { fill: var(--vx-right); }
.vx-accent .vx-t { fill: var(--vx-a-top); }
.vx-accent .vx-l { fill: var(--vx-a-left); }
.vx-accent .vx-r { fill: var(--vx-a-right); }
.vx-edge { stroke: var(--line-strong); stroke-width: 1; stroke-linejoin: round; }
.vx-floor { fill: none; stroke: var(--line-strong); stroke-width: 1; }
.vx-tower { animation: vxIn 0.9s var(--ease) backwards; animation-delay: calc(var(--i, 0) * 110ms + 150ms); }
@keyframes vxIn { from { opacity: 0; transform: translateY(28px); } }

/* Selected-work strip */
.strip { border-block: 1px solid var(--line); }
.strip-inner { display: flex; flex-wrap: wrap; align-items: center; gap: 12px 36px; padding-block: 28px; }
.strip .link-arrow { margin-left: auto; }
.strip-label { font-size: 0.75rem; font-weight: 600; letter-spacing: 0.1em; text-transform: uppercase; color: var(--text-3); }
.strip-names { display: flex; flex-wrap: wrap; gap: 8px 32px; }
.strip-names li { font-family: var(--font-display); font-size: 0.9375rem; font-weight: 600; letter-spacing: -0.01em; color: var(--text-2); }

/* Disciplines */
.discipline { padding-top: 28px; }
.discipline .connects {
  margin-top: auto; padding-top: 16px; border-top: 1px dashed var(--line-strong);
  font-size: 0.8125rem; line-height: 1.55; color: var(--text-3);
}
.discipline .connects b { color: var(--text); font-weight: 600; }
.discipline p { margin-bottom: 8px; }

/* Process (home teaser) */
.process { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 24px; }
.step { position: relative; padding-top: 68px; }
.step-num {
  position: absolute; top: 0; left: 0; z-index: 1; display: grid; place-items: center;
  width: 46px; height: 46px; border: 1px solid var(--line-strong); border-radius: 50%;
  background: var(--surface); color: var(--accent-text);
  font-family: var(--font-display); font-size: 0.875rem; font-weight: 700;
}
.step::after { content: ""; position: absolute; top: 23px; left: 52px; right: -18px; height: 1px; background: var(--line-strong); }
.step:last-child::after { display: none; }
.step h3 { font-size: 1.25rem; margin-bottom: 8px; }
.step p { font-size: 0.9375rem; }
.step .tag { margin-top: 14px; }
.loop-note { display: flex; align-items: center; gap: 10px; margin-top: 36px; font-size: 0.9375rem; color: var(--text-2); }
.loop-note .icon { color: var(--accent-text); }
@media (max-width: 960px) { .process { grid-template-columns: repeat(2, minmax(0, 1fr)); row-gap: 40px; } .step:nth-child(2)::after { display: none; } }
@media (max-width: 620px) {
  .process { grid-template-columns: minmax(0, 1fr); gap: 0; }
  .step { padding: 0 0 36px 68px; min-height: 46px; }
  .step:last-child { padding-bottom: 0; }
  .step::after, .step:nth-child(2)::after { display: block; top: 52px; left: 22.5px; right: auto; bottom: 6px; width: 1px; height: auto; }
  .step:last-child::after { display: none; }
}

/* Audience */
.audience { flex-direction: row; align-items: flex-start; gap: 16px; padding: 24px; }
.audience .icon-tile { margin: 0; flex: none; }
.audience h3 { font-size: 1.0625rem; margin-bottom: 4px; }
.audience p { font-size: 0.875rem; }
@media (min-width: 721px) { .audience { flex-direction: column; align-items: stretch; gap: 12px; padding: 28px; } .audience .icon-tile { margin-bottom: 8px; } }
.audience > div:last-child { flex: 1; min-width: 0; }
.audience--cta { justify-content: center; align-items: flex-start; background: var(--accent-soft); border-color: color-mix(in srgb, var(--accent-text) 35%, transparent); box-shadow: none; }
.audience--cta h3 { font-size: 1.25rem; margin-bottom: 4px; }

/* Pillars */
.pillars { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 40px 32px; }
.pillar { padding-top: 24px; border-top: 1px solid var(--line-strong); position: relative; }
.pillar::before { content: ""; position: absolute; top: -1px; left: 0; width: 40px; height: 2px; background: var(--accent); }
.pillar .label { display: block; margin-bottom: 14px; font-size: 0.75rem; font-weight: 600; letter-spacing: 0.1em; text-transform: uppercase; color: var(--accent-text); }
.pillar h3 { margin-bottom: 10px; font-size: 1.25rem; line-height: 1.25; }
.pillar p { font-size: 0.9375rem; }
@media (max-width: 1040px) { .pillars { grid-template-columns: repeat(2, minmax(0, 1fr)); } }
@media (max-width: 620px) { .pillars { grid-template-columns: minmax(0, 1fr); gap: 32px; } }

/* Insight cards */
.insight { gap: 14px; }
.insight .meta { display: flex; align-items: center; justify-content: space-between; gap: 12px; }
.insight .read { font-size: 0.8125rem; color: var(--text-3); }
.insight h3 { font-size: 1.1875rem; line-height: 1.3; }
.insight .link-arrow { margin-top: auto; padding-top: 6px; }

/* Interior page hero */
.page-hero { padding: clamp(40px, 6vw, 72px) 0 clamp(40px, 6vw, 64px); border-bottom: 1px solid var(--line); background: var(--bg); position: relative; overflow: hidden; }
.page-hero::before {
  content: ""; position: absolute; inset: 0; pointer-events: none;
  background-image: radial-gradient(var(--line-strong) 1px, transparent 1.2px); background-size: 28px 28px;
  -webkit-mask-image: radial-gradient(ellipse 50% 90% at 92% 0%, #000, transparent 75%);
          mask-image: radial-gradient(ellipse 50% 90% at 92% 0%, #000, transparent 75%);
}
.page-hero .container { position: relative; }
.page-hero h1 { max-width: 820px; font-size: clamp(2.125rem, 1.4rem + 3.2vw, 3.75rem); line-height: 1.05; letter-spacing: -0.035em; font-weight: 800; }
.page-hero .lede { max-width: 640px; margin-top: 20px; font-size: clamp(1.0625rem, 1rem + 0.3vw, 1.1875rem); }
.summary {
  max-width: 720px; margin-top: 32px; padding: 22px 26px;
  background: var(--surface); border: 1px solid var(--line); border-left: 3px solid var(--accent); border-radius: var(--radius);
}
.summary h2 { margin-bottom: 12px; font-family: var(--font-body); font-size: 0.75rem; font-weight: 600; letter-spacing: 0.1em; text-transform: uppercase; color: var(--text-3); }
.summary ul { display: grid; gap: 10px; }
.summary li { position: relative; padding-left: 20px; font-size: 0.9375rem; color: var(--text); }
.summary li::before { content: ""; position: absolute; left: 0; top: 0.6em; width: 6px; height: 6px; border-radius: 1.5px; background: var(--accent); transform: rotate(45deg); }

/* Capabilities pillars */
.pillar-body { display: grid; grid-template-columns: minmax(0, 1.15fr) minmax(0, 0.85fr); gap: clamp(24px, 4vw, 48px); padding: 4px 28px 32px; }
.pillar-body > div > p { color: var(--text-2); font-size: 1.0625rem; margin-bottom: 24px; }
.mini-label { display: block; margin-bottom: 10px; font-size: 0.75rem; font-weight: 600; letter-spacing: 0.1em; text-transform: uppercase; color: var(--text-3); }
.pillar-body .chips { margin-bottom: 24px; }
.deliverables { display: grid; gap: 10px; }
.deliverables li { display: flex; gap: 10px; align-items: flex-start; font-size: 0.9375rem; color: var(--text-2); }
.deliverables .icon { flex: none; width: 1.05em; height: 1.05em; margin-top: 4px; color: var(--accent-text); }
.side-panel { align-self: start; padding: 24px; background: var(--bg); border: 1px solid var(--line); border-radius: var(--radius); }
.side-panel h4 { margin-bottom: 8px; font-family: var(--font-body); font-size: 0.75rem; font-weight: 600; letter-spacing: 0.1em; text-transform: uppercase; color: var(--text-3); }
.side-panel dl > div { display: flex; justify-content: space-between; align-items: baseline; gap: 16px; padding: 12px 0; border-bottom: 1px solid var(--line); }
.side-panel dl > div:last-child { border-bottom: 0; padding-bottom: 0; }
.side-panel dt { font-size: 0.875rem; color: var(--text-2); }
.side-panel dd { font-family: var(--font-display); font-size: 0.9375rem; font-weight: 700; text-align: right; color: var(--text); }
@media (max-width: 860px) { .pillar-body { grid-template-columns: minmax(0, 1fr); padding: 4px 20px 24px; } .acc-trigger { padding: 20px; } }

/* FAQ */
.faq { max-width: 780px; }
.faq .acc-item { border-radius: var(--radius); }
.faq .acc-trigger { padding: 20px 24px; font-family: var(--font-display); font-size: 1.0625rem; font-weight: 700; letter-spacing: -0.015em; }
.faq dt { margin: 0; }
.faq dd { margin: 0; }
.faq dd p { padding: 0 24px 22px; font-size: 1rem; max-width: 64ch; }

/* Work / case studies */
.case { gap: 16px; padding: clamp(24px, 3vw, 32px); }
.case-top { display: flex; align-items: center; justify-content: space-between; gap: 16px; }
.case-year { font-size: 0.8125rem; color: var(--text-3); font-variant-numeric: tabular-nums; }
.case h3 { font-size: 1.5rem; }
.case-lead { font-family: var(--font-display); font-size: 1.0625rem; font-weight: 600; color: var(--text); letter-spacing: -0.01em; }
.metrics { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 0; margin-top: 4px; border-top: 1px solid var(--line); }
.metrics > div { padding: 18px 16px 4px 0; }
.metrics > div + div { padding-left: 16px; border-left: 1px solid var(--line); }
.metrics dd { font-family: var(--font-display); font-size: clamp(1.375rem, 1.1rem + 0.8vw, 1.75rem); font-weight: 700; letter-spacing: -0.03em; line-height: 1.1; color: var(--text); font-variant-numeric: tabular-nums; }
.metrics dt { margin-top: 4px; font-size: 0.8125rem; line-height: 1.4; color: var(--text-3); }
.metrics > div { display: flex; flex-direction: column-reverse; justify-content: flex-end; }
.case .chips { margin-top: auto; padding-top: 4px; }
@media (max-width: 480px) {
  .metrics { grid-template-columns: minmax(0, 1fr); }
  .metrics > div, .metrics > div + div { flex-direction: row-reverse; justify-content: space-between; align-items: baseline; gap: 16px; padding: 12px 0; border-left: 0; border-bottom: 1px solid var(--line); }
  .metrics > div:last-child { border-bottom: 0; }
  .metrics dt { margin: 0; }
}

/* Approach timeline */
.timeline { position: relative; }
.timeline-item { position: relative; display: grid; grid-template-columns: 96px minmax(0, 1fr); gap: 24px; padding: 0 0 clamp(40px, 5vw, 56px); }
.timeline-item:last-child { padding-bottom: 0; }
.timeline-item::before { content: ""; position: absolute; top: 56px; bottom: 8px; left: 27px; width: 1px; background: var(--line-strong); }
.timeline-item:last-child::before { display: none; }
.timeline-num {
  display: grid; place-items: center; width: 56px; height: 56px; border: 1px solid var(--line-strong); border-radius: 50%;
  background: var(--surface); color: var(--accent-text); font-family: var(--font-display); font-size: 1.0625rem; font-weight: 700;
}
.timeline-body h3 { margin-bottom: 12px; padding-top: 10px; font-size: clamp(1.375rem, 1.1rem + 1vw, 1.75rem); }
.timeline-body > p { max-width: 640px; margin-bottom: 24px; font-size: 1.0625rem; }
.chip-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 12px; }
.chip-card { padding: 14px 16px; background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius); }
.chip-card span { display: block; margin-bottom: 4px; font-size: 0.75rem; font-weight: 600; letter-spacing: 0.08em; text-transform: uppercase; color: var(--text-3); }
.chip-card b { font-size: 0.9375rem; font-weight: 600; color: var(--text); }
@media (max-width: 720px) {
  .timeline-item { grid-template-columns: minmax(0, 1fr); gap: 16px; padding-left: 0; }
  .timeline-item::before { display: none; }
  .timeline-num { width: 44px; height: 44px; font-size: 0.9375rem; }
  .timeline-body h3 { padding-top: 0; }
  .chip-grid { grid-template-columns: minmax(0, 1fr); }
}

/* Insights: AI answer mockups */
.mock { padding: 0; gap: 0; overflow: hidden; background: var(--bg); box-shadow: none; }
.mock-bar { display: flex; align-items: center; gap: 10px; padding: 14px 18px; border-bottom: 1px solid var(--line); font-size: 0.8125rem; font-weight: 600; color: var(--text-2); }
.mock-dot { width: 10px; height: 10px; border-radius: 50%; flex: none; }
.mock-body { display: flex; flex-direction: column; gap: 14px; padding: 20px 18px 22px; flex: 1; }
.mock-q { align-self: flex-end; max-width: 92%; padding: 10px 14px; border-radius: 14px 14px 4px 14px; background: var(--surface-2); font-size: 0.875rem; color: var(--text); }
.mock-a { font-size: 0.9375rem; line-height: 1.6; color: var(--text); }
.mock-cite { margin-top: auto; display: inline-flex; align-items: center; gap: 6px; align-self: flex-start; padding: 5px 10px; border-radius: 8px; background: var(--accent-soft); color: var(--accent-text); font-size: 0.75rem; font-weight: 600; }
.mock-cite .icon { width: 13px; height: 13px; }
.mock-note { margin-top: 24px; font-size: 0.8125rem; color: var(--text-3); }

/* Contact page */
.contact-grid { display: grid; grid-template-columns: minmax(0, 0.85fr) minmax(0, 1.15fr); gap: clamp(32px, 6vw, 72px); align-items: start; }
.contact-intro h2 { margin-bottom: 14px; font-size: clamp(1.625rem, 1.2rem + 1.4vw, 2.25rem); }
.contact-list { display: grid; gap: 4px; margin: 28px 0; }
.contact-list a, .contact-list li > span { display: flex; align-items: center; gap: 12px; min-height: 44px; font-size: 1rem; color: var(--text); }
.contact-list a:hover { color: var(--accent-text); }
.contact-list .icon { width: 20px; height: 20px; color: var(--accent-text); }
.office-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 12px; margin-top: 28px; }
.office { padding: 20px; background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius); }
.office h3 { margin-bottom: 6px; font-size: 1rem; }
.office p { font-size: 0.875rem; }
@media (max-width: 900px) { .contact-grid { grid-template-columns: minmax(0, 1fr); } .contact-form-col { order: -1; } }
@media (max-width: 520px) { .office-grid { grid-template-columns: minmax(0, 1fr); } }

/* 404 */
.notfound { min-height: calc(100dvh - var(--header-h) - 280px); display: grid; align-items: center; padding-block: var(--section-y); }
.notfound .code { font-family: var(--font-display); font-size: clamp(4rem, 3rem + 8vw, 9rem); font-weight: 800; letter-spacing: -0.06em; line-height: 1; color: var(--accent-text); }
.notfound h1 { margin: 12px 0 14px; font-size: clamp(1.75rem, 1.3rem + 1.8vw, 2.5rem); }
.notfound .hero-cta { margin-top: 28px; }

/* 7. Motion ---------------------------------------------------------------- */
@keyframes rise { from { opacity: 0; transform: translateY(14px); } }
.js [data-reveal]:not(.is-in) { opacity: 0; }
.js [data-reveal].is-in { animation: rise 0.7s var(--ease) backwards; animation-delay: calc(var(--i, 0) * 70ms); }

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.001ms !important; animation-delay: 0ms !important; animation-iteration-count: 1 !important;
    transition-duration: 0.001ms !important; transition-delay: 0ms !important; scroll-behavior: auto !important;
  }
}

/* Utilities */
.mt-sm { margin-top: 12px; }
.mt-md { margin-top: 24px; }
.mt-lg { margin-top: 28px; }
.text-link { color: var(--accent-text); text-decoration: underline; text-underline-offset: 3px; }
.text-link:hover { text-decoration-thickness: 2px; }
.cta-panel--flat { background: var(--bg); }
.social--flush { margin-top: 0; }
.mobile-menu::after { content: ""; position: absolute; top: 100%; left: 0; right: 0; height: 100vh; background: rgba(0, 0, 0, 0.55); pointer-events: none; }