:root {
  color-scheme: light;
  --paper: #f8f3ea;
  --paper-2: #efe7d8;
  --ink: #221f1a;
  --muted: #6d6256;
  --faint: #928678;
  --line: #d8cbb7;
  --panel: #fffaf0;
  --panel-2: #f4ebdc;
  --accent: #2f7d66;
  --accent-deep: #1f5948;
  --warm: #bd6042;
  --cool: #4f7f9a;
  --shadow: 0 16px 44px rgb(45 35 22 / 12%);
  --radius: 8px;
  --sans: ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  --serif: ui-serif, Georgia, Cambria, "Times New Roman", Times, serif;
}

.site-playbook {
  --paper: #f4f7f4;
  --paper-2: #e6eee9;
  --ink: #17252b;
  --muted: #53646b;
  --line: #c8d6d3;
  --panel: #fbfffb;
  --panel-2: #eaf4f2;
  --accent: #236f7e;
  --accent-deep: #164a58;
  --warm: #a7663f;
  --cool: #6274a6;
}

.site-arc {
  --paper: #fbf5eb;
  --paper-2: #efe2ce;
  --ink: #231d23;
  --muted: #675b62;
  --line: #dac8b3;
  --panel: #fffaf3;
  --panel-2: #f3eadb;
  --accent: #a67226;
  --accent-deep: #77511b;
  --warm: #c24f54;
  --cool: #3d7b75;
}

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

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

body {
  margin: 0;
  min-width: 320px;
  background:
    linear-gradient(120deg, transparent 0 24%, rgb(255 255 255 / 28%) 24% 24.5%, transparent 24.5% 100%),
    repeating-linear-gradient(90deg, rgb(255 255 255 / 0.16) 0 1px, transparent 1px 84px),
    linear-gradient(180deg, var(--paper), var(--paper-2));
  color: var(--ink);
  font-family: var(--sans);
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

button,
input {
  font: inherit;
}

a {
  color: inherit;
}

.progress {
  position: fixed;
  inset: 0 auto auto 0;
  width: 0;
  height: 4px;
  z-index: 20;
  background: linear-gradient(90deg, var(--accent), var(--warm), var(--cool));
}

.topbar {
  position: sticky;
  top: 0;
  z-index: 15;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: .85rem clamp(1rem, 3vw, 2rem);
  border-bottom: 1px solid color-mix(in srgb, var(--line) 78%, transparent);
  background: color-mix(in srgb, var(--paper) 86%, transparent);
  backdrop-filter: blur(18px);
}

.brand {
  color: var(--accent-deep);
  font-weight: 800;
  letter-spacing: .13em;
  text-decoration: none;
  text-transform: uppercase;
}

.top-actions {
  display: flex;
  align-items: center;
  gap: .5rem;
}

.top-actions a,
.top-actions button,
.download-link {
  min-height: 38px;
  padding: .55rem .8rem;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: color-mix(in srgb, var(--panel) 82%, white);
  color: var(--ink);
  text-decoration: none;
  cursor: pointer;
}

.top-actions button[aria-pressed="true"] {
  border-color: var(--accent);
  background: var(--accent);
  color: white;
}

.hero {
  display: grid;
  grid-template-columns: minmax(0, 1.04fr) minmax(280px, .62fr);
  gap: clamp(1.4rem, 4vw, 4rem);
  align-items: end;
  width: min(1180px, calc(100% - 2rem));
  margin: 0 auto;
  padding: clamp(2rem, 6vw, 5rem) 0 clamp(1.5rem, 5vw, 4rem);
}

.hero-copy {
  min-width: 0;
}

.section-kicker {
  margin: 0 0 .85rem;
  color: var(--accent-deep);
  font-size: .76rem;
  font-weight: 800;
  letter-spacing: .15em;
  text-transform: uppercase;
}

h1 {
  max-width: 860px;
  margin: 0;
  font-family: var(--serif);
  font-size: clamp(3rem, 7vw, 7.4rem);
  line-height: .9;
  letter-spacing: 0;
}

.site-playbook h1 {
  font-family: var(--sans);
  font-size: clamp(2.7rem, 6vw, 6.2rem);
  line-height: .92;
  font-weight: 850;
}

.site-arc h1 {
  font-size: clamp(3.6rem, 8vw, 8rem);
}

.hero-deck {
  max-width: 720px;
  margin: 1.25rem 0 0;
  color: var(--muted);
  font-size: clamp(1.03rem, 1.9vw, 1.35rem);
}

.metrics {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: .7rem;
  margin: 1.8rem 0;
}

.metric {
  min-width: 0;
  padding: .95rem;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: color-mix(in srgb, var(--panel) 82%, white);
  box-shadow: 0 1px 0 rgb(255 255 255 / .6) inset;
}

.metric span,
.metric small {
  display: block;
  color: var(--muted);
  font-size: .78rem;
}

.metric strong {
  display: block;
  margin: .12rem 0;
  color: var(--accent-deep);
  font-family: var(--serif);
  font-size: clamp(1.45rem, 2.4vw, 2rem);
  line-height: 1;
}

.site-playbook .metric strong {
  font-family: var(--sans);
  font-weight: 850;
}

.search-box {
  display: grid;
  grid-template-columns: auto minmax(160px, 1fr) auto;
  align-items: center;
  gap: .65rem;
  max-width: 680px;
  padding: .6rem;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: rgb(255 255 255 / 48%);
}

.search-box label {
  color: var(--muted);
  font-weight: 700;
}

.search-box input {
  min-width: 0;
  width: 100%;
  border: 0;
  border-bottom: 2px solid var(--line);
  background: transparent;
  color: var(--ink);
  outline: none;
  padding: .35rem .2rem;
}

.search-box input:focus {
  border-color: var(--accent);
}

.search-box button {
  border: 0;
  border-radius: var(--radius);
  padding: .55rem .75rem;
  background: var(--ink);
  color: white;
  cursor: pointer;
}

.cover-frame {
  position: relative;
  margin: 0;
  padding: .7rem;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: linear-gradient(145deg, rgb(255 255 255 / 72%), rgb(255 255 255 / 24%));
  box-shadow: var(--shadow);
}

.site-playbook .cover-frame {
  transform: rotate(.7deg);
}

.site-ramp .cover-frame {
  transform: rotate(-.45deg);
}

.cover-frame img {
  display: block;
  width: 100%;
  height: auto;
  border-radius: 6px;
  background: white;
}

/* ----- High-end production pass ----- */
body {
  position: relative;
  isolation: isolate;
  overflow-x: hidden;
}

.site-ramp {
  --paper: #f9f2e6;
  --paper-2: #eadfcf;
  --ink: #201b16;
  --muted: #685d50;
  --line: #d7c5aa;
  --panel: #fff8ec;
  --accent: #0f6d55;
  --accent-deep: #074b3a;
  --warm: #b95f35;
  --cool: #557f86;
  background:
    linear-gradient(116deg, transparent 0 51.8%, rgb(15 109 85 / .08) 52% 52.35%, transparent 52.5%),
    repeating-linear-gradient(90deg, rgb(32 27 22 / .045) 0 1px, transparent 1px 96px),
    linear-gradient(180deg, #fbf6ed 0%, var(--paper) 44%, var(--paper-2) 100%);
}

.site-playbook {
  background:
    linear-gradient(90deg, rgb(22 74 88 / .1) 0 10px, transparent 10px 100%),
    repeating-linear-gradient(0deg, transparent 0 76px, rgb(35 111 126 / .055) 76px 77px),
    linear-gradient(135deg, #f7fbf8 0%, var(--paper) 46%, var(--paper-2) 100%);
}

.site-arc {
  background:
    linear-gradient(105deg, transparent 0 48%, rgb(166 114 38 / .08) 48.1% 48.45%, transparent 48.6%),
    repeating-linear-gradient(180deg, transparent 0 108px, rgb(119 81 27 / .06) 108px 109px),
    linear-gradient(180deg, #fffaf2 0%, var(--paper) 50%, #ebdcc8 100%);
}

.ambient-scene {
  position: fixed;
  inset: 0;
  z-index: -1;
  pointer-events: none;
  overflow: hidden;
}

.ambient-scene span {
  position: absolute;
  display: block;
  opacity: .72;
}

.site-ramp .ambient-scene span:nth-child(1) {
  width: min(76vw, 960px);
  height: 2px;
  left: 28vw;
  top: 18vh;
  background: linear-gradient(90deg, transparent, var(--accent), transparent);
  transform: rotate(-12deg);
}

.site-ramp .ambient-scene span:nth-child(2) {
  width: 340px;
  height: 340px;
  right: 6vw;
  top: 18vh;
  border: 1px solid rgb(15 109 85 / .16);
  border-radius: 50%;
  background:
    conic-gradient(from -70deg, transparent 0 22%, rgb(15 109 85 / .08) 22% 38%, transparent 38% 100%);
}

.site-ramp .ambient-scene span:nth-child(3) {
  width: 160px;
  height: 74vh;
  left: 3vw;
  top: 18vh;
  border-left: 1px solid rgb(7 75 58 / .16);
  border-right: 1px solid rgb(7 75 58 / .07);
  transform: skewX(-9deg);
}

.site-playbook .ambient-scene span:nth-child(1) {
  width: 76px;
  height: 82vh;
  left: clamp(18px, 5vw, 78px);
  top: 10vh;
  border: 1px solid rgb(22 74 88 / .16);
  background:
    repeating-linear-gradient(180deg, rgb(35 111 126 / .12) 0 1px, transparent 1px 44px);
}

.site-playbook .ambient-scene span:nth-child(2) {
  width: min(58vw, 720px);
  height: min(58vw, 720px);
  right: -18vw;
  top: 6vh;
  border: 1px solid rgb(35 111 126 / .12);
  transform: rotate(8deg);
  background:
    repeating-linear-gradient(90deg, transparent 0 28px, rgb(35 111 126 / .055) 28px 29px);
}

.site-playbook .ambient-scene span:nth-child(3) {
  width: 44vw;
  height: 2px;
  right: 8vw;
  bottom: 28vh;
  background: linear-gradient(90deg, transparent, rgb(167 102 63 / .48), transparent);
}

.site-arc .ambient-scene span:nth-child(1) {
  width: 110vw;
  height: 240px;
  left: -5vw;
  top: 19vh;
  border-top: 1px solid rgb(166 114 38 / .18);
  border-bottom: 1px solid rgb(166 114 38 / .11);
  transform: rotate(-4deg);
}

.site-arc .ambient-scene span:nth-child(2) {
  width: 54vw;
  height: 54vw;
  right: -22vw;
  top: 2vh;
  border: 1px solid rgb(61 123 117 / .14);
  border-radius: 50%;
}

.site-arc .ambient-scene span:nth-child(3) {
  width: min(72vw, 880px);
  height: 2px;
  left: 14vw;
  top: 58vh;
  background: linear-gradient(90deg, transparent, rgb(194 79 84 / .34), rgb(166 114 38 / .42), transparent);
}

.topbar {
  min-height: 72px;
  padding-inline: clamp(1rem, 3vw, 2.4rem);
  box-shadow: 0 1px 0 rgb(255 255 255 / .48) inset;
}

.brand {
  position: relative;
}

.brand::after {
  content: "";
  position: absolute;
  left: 0;
  right: 8%;
  bottom: -.42rem;
  height: 2px;
  background: currentColor;
  transform-origin: left;
  transform: scaleX(.42);
}

.top-actions a,
.top-actions button,
.download-link {
  box-shadow: 0 1px 0 rgb(255 255 255 / .72) inset, 0 10px 24px rgb(40 30 20 / .055);
  transition: border-color .18s ease, background .18s ease, color .18s ease, transform .18s ease;
}

.top-actions a:hover,
.top-actions button:hover,
.download-link:hover {
  border-color: color-mix(in srgb, var(--accent) 58%, var(--line));
  transform: translateY(-1px);
}

.hero {
  position: relative;
  min-height: min(860px, calc(100svh - 38px));
  align-items: center;
  width: min(1240px, calc(100% - 2rem));
  padding-top: clamp(2.4rem, 6vw, 5.4rem);
}

.hero::before {
  content: "";
  position: absolute;
  inset: 7% -4% 9%;
  z-index: -1;
  border: 1px solid color-mix(in srgb, var(--line) 68%, transparent);
  border-radius: 14px;
  background:
    linear-gradient(135deg, rgb(255 255 255 / .38), transparent 52%),
    linear-gradient(90deg, rgb(255 255 255 / .18), transparent);
  clip-path: polygon(0 0, 100% 0, 94% 100%, 0 92%);
}

.site-playbook .hero::before {
  clip-path: polygon(3% 0, 100% 0, 100% 88%, 0 100%, 0 7%);
  background:
    linear-gradient(90deg, rgb(35 111 126 / .055) 0 24%, transparent 24%),
    linear-gradient(135deg, rgb(255 255 255 / .62), transparent 58%);
}

.site-arc .hero::before {
  clip-path: polygon(0 0, 94% 0, 100% 100%, 6% 100%);
  background:
    linear-gradient(180deg, rgb(255 255 255 / .48), transparent 62%),
    linear-gradient(105deg, transparent 0 58%, rgb(166 114 38 / .08) 58% 59%, transparent 59%);
}

.hero-copy {
  position: relative;
  z-index: 1;
}

.hero-copy::before {
  content: "";
  display: block;
  width: 132px;
  height: 3px;
  margin-bottom: clamp(1rem, 2vw, 1.6rem);
  background: linear-gradient(90deg, var(--accent), var(--warm));
}

.site-playbook .hero-copy::before {
  width: 92px;
  height: 92px;
  margin-bottom: 1.1rem;
  border: 1px solid rgb(35 111 126 / .3);
  background:
    linear-gradient(90deg, transparent 0 47%, rgb(35 111 126 / .28) 47% 49%, transparent 49%),
    linear-gradient(0deg, transparent 0 47%, rgb(35 111 126 / .28) 47% 49%, transparent 49%);
  transform: rotate(4deg);
}

.site-arc .hero-copy::before {
  width: min(420px, 50vw);
  height: 1px;
  background: linear-gradient(90deg, var(--accent), var(--warm), transparent);
}

h1 {
  text-wrap: balance;
  text-shadow: 0 1px 0 rgb(255 255 255 / .38);
}

.site-ramp h1 {
  max-width: 760px;
}

.site-playbook h1 {
  max-width: 820px;
  letter-spacing: -.015em;
}

.site-arc h1 {
  max-width: 720px;
}

.hero-deck {
  text-wrap: pretty;
}

.metrics {
  max-width: 760px;
}

.metric {
  position: relative;
  overflow: hidden;
  background:
    linear-gradient(180deg, rgb(255 255 255 / .74), rgb(255 255 255 / .34)),
    var(--panel);
}

.metric::before {
  content: "";
  position: absolute;
  inset: 0 auto 0 0;
  width: 3px;
  background: linear-gradient(180deg, var(--accent), var(--warm));
}

.site-playbook .metric {
  border-style: solid;
  box-shadow: 7px 7px 0 rgb(35 111 126 / .07);
}

.site-arc .metric::before {
  width: 100%;
  height: 3px;
  inset: 0 0 auto;
}

.search-box {
  box-shadow: 0 18px 42px rgb(40 30 20 / .065);
}

.cover-frame {
  max-width: 500px;
  justify-self: center;
  transform-style: preserve-3d;
  box-shadow:
    0 34px 86px rgb(35 25 14 / .18),
    0 1px 0 rgb(255 255 255 / .72) inset;
}

.cover-frame::before,
.cover-frame::after {
  content: "";
  position: absolute;
  z-index: -1;
  border: 1px solid color-mix(in srgb, var(--accent) 24%, transparent);
  border-radius: inherit;
}

.cover-frame::before {
  inset: -18px 22px 22px -18px;
  background: color-mix(in srgb, var(--accent) 8%, transparent);
  transform: translateZ(-1px);
}

.cover-frame::after {
  inset: 24px -20px -20px 24px;
  background:
    repeating-linear-gradient(135deg, rgb(255 255 255 / .2) 0 10px, transparent 10px 20px),
    color-mix(in srgb, var(--warm) 8%, transparent);
}

.site-ramp .cover-frame {
  transform: rotate(-1.4deg) translateY(10px);
}

.site-playbook .cover-frame {
  transform: rotate(1.2deg) translateY(4px);
}

.site-playbook .cover-frame::before {
  inset: -24px auto -24px -34px;
  width: 62px;
  border-radius: 10px 0 0 10px;
  background:
    repeating-linear-gradient(180deg, rgb(22 74 88 / .22) 0 1px, transparent 1px 34px),
    color-mix(in srgb, var(--accent) 12%, white);
}

.site-playbook .cover-frame::after {
  inset: 18px -28px -18px 72%;
  border-radius: 0 10px 10px 0;
}

.site-arc .cover-frame {
  transform: rotate(.4deg) translateY(-8px);
}

.site-arc .cover-frame::before {
  inset: 50% -52px auto -52px;
  height: 1px;
  border: 0;
  background: linear-gradient(90deg, transparent, var(--accent), var(--warm), transparent);
}

.reader-layout {
  align-items: start;
  width: min(1360px, calc(100% - 2rem));
}

.index-inner {
  border-radius: 0 10px 10px 0;
  background: linear-gradient(90deg, color-mix(in srgb, var(--paper) 62%, transparent), transparent);
}

.reader-index a {
  position: relative;
}

.reader-index a::before {
  content: "";
  position: absolute;
  left: -.88rem;
  top: 50%;
  width: .42rem;
  height: .42rem;
  border: 1px solid var(--accent);
  border-radius: 50%;
  opacity: 0;
  transform: translateY(-50%);
}

.reader-index a.is-active::before {
  opacity: 1;
  background: var(--accent);
}

.insight-panel {
  position: relative;
  overflow: hidden;
  min-height: 430px;
  margin-bottom: 1.4rem;
  border-radius: 14px;
  box-shadow: 0 24px 70px rgb(35 25 14 / .1);
}

.insight-panel::before {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background:
    linear-gradient(90deg, rgb(255 255 255 / .22), transparent 34%),
    repeating-linear-gradient(90deg, transparent 0 80px, rgb(0 0 0 / .035) 80px 81px);
}

.insight-panel > * {
  position: relative;
  z-index: 1;
}

.site-ramp .insight-panel {
  background:
    linear-gradient(135deg, color-mix(in srgb, var(--accent) 11%, white), transparent 46%),
    var(--panel);
}

.site-playbook .insight-panel {
  background:
    linear-gradient(90deg, color-mix(in srgb, var(--accent) 10%, white) 0 31%, transparent 31%),
    var(--panel);
}

.site-arc .insight-panel {
  background:
    linear-gradient(180deg, color-mix(in srgb, var(--warm) 14%, white), transparent 66%),
    linear-gradient(105deg, transparent 0 56%, color-mix(in srgb, var(--accent) 10%, transparent) 56% 57%, transparent 57%),
    var(--panel);
}

.page-shell {
  position: relative;
  overflow: hidden;
  border-radius: 12px;
  box-shadow: 0 14px 36px rgb(35 25 14 / .075);
}

.page-shell::before {
  content: "";
  position: absolute;
  inset: 0 auto 0 0;
  width: 7px;
  background: linear-gradient(180deg, var(--accent), color-mix(in srgb, var(--warm) 70%, var(--accent)));
}

.site-playbook .page-shell::before {
  width: 42px;
  opacity: .18;
  background:
    repeating-linear-gradient(180deg, var(--accent) 0 2px, transparent 2px 38px);
}

.site-arc .page-shell::before {
  width: 100%;
  height: 5px;
  inset: 0 0 auto;
}

.reader-layout {
  display: grid;
  grid-template-columns: 260px minmax(0, 1fr);
  gap: clamp(1rem, 3vw, 2rem);
  width: min(1320px, calc(100% - 2rem));
  margin: 0 auto;
  padding-bottom: 4rem;
}

.reader-index {
  min-width: 0;
}

.index-inner {
  position: sticky;
  top: 76px;
  padding: 1rem;
  border-left: 3px solid var(--accent);
}

.reader-index nav {
  display: grid;
  gap: .25rem;
  margin: .7rem 0 1rem;
}

.reader-index a {
  display: block;
  border-radius: var(--radius);
  padding: .55rem .65rem;
  color: var(--muted);
  text-decoration: none;
}

.reader-index a:hover,
.reader-index a.is-active {
  background: color-mix(in srgb, var(--accent) 14%, transparent);
  color: var(--accent-deep);
}

.reader-main {
  min-width: 0;
}

.insight-panel {
  display: grid;
  grid-template-columns: minmax(0, .72fr) minmax(320px, 1fr);
  gap: clamp(1rem, 3vw, 2rem);
  align-items: center;
  margin-bottom: 1rem;
  padding: clamp(1rem, 3vw, 2rem);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background:
    linear-gradient(135deg, rgb(255 255 255 / .62), transparent 52%),
    var(--panel);
}

.site-playbook .insight-panel {
  grid-template-columns: minmax(260px, .46fr) minmax(0, 1fr);
}

.site-arc .insight-panel {
  background:
    linear-gradient(180deg, color-mix(in srgb, var(--warm) 10%, transparent), transparent),
    var(--panel);
}

.insight-copy h2 {
  margin: 0;
  font-family: var(--serif);
  font-size: clamp(1.8rem, 3.5vw, 3.4rem);
  line-height: 1;
  letter-spacing: 0;
}

.site-playbook .insight-copy h2 {
  font-family: var(--sans);
  font-weight: 850;
}

.line-chart {
  margin: 0;
  min-width: 0;
}

.line-chart svg {
  width: 100%;
  height: auto;
  overflow: visible;
}

.svg-label,
.svg-tick {
  fill: var(--muted);
  font: 700 18px var(--sans);
}

.svg-tick {
  font-size: 14px;
  text-anchor: middle;
}

.mini-grid,
.bar-list,
.year-grid,
.skill-ribbons {
  display: grid;
  gap: .7rem;
}

.mini-grid,
.bar-list,
.skill-ribbons {
  grid-column: 1 / -1;
}

.mix-row,
.bar-row,
.ribbon,
.year-tile {
  display: grid;
  grid-template-columns: minmax(140px, 1fr) minmax(120px, 2fr) auto;
  gap: .8rem;
  align-items: center;
  padding: .72rem .8rem;
  border: 1px solid color-mix(in srgb, var(--line) 82%, transparent);
  border-radius: var(--radius);
  background: rgb(255 255 255 / 52%);
}

.stack,
.bar-row div {
  display: flex;
  height: 12px;
  overflow: hidden;
  border-radius: 999px;
  background: color-mix(in srgb, var(--line) 80%, white);
}

.stack i,
.stack b,
.bar-row i {
  display: block;
  height: 100%;
}

.stack i {
  background: var(--warm);
}

.stack b,
.bar-row i {
  background: var(--accent);
}

.matrix {
  position: relative;
  min-height: 410px;
  grid-column: 2;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background:
    linear-gradient(90deg, transparent 0 19%, rgb(0 0 0 / .045) 19% 19.35%, transparent 19.35% 39%, rgb(0 0 0 / .045) 39% 39.35%, transparent 39.35% 59%, rgb(0 0 0 / .045) 59% 59.35%, transparent 59.35% 79%, rgb(0 0 0 / .045) 79% 79.35%, transparent 79.35%),
    linear-gradient(0deg, transparent 0 24%, rgb(0 0 0 / .04) 24% 24.35%, transparent 24.35% 49%, rgb(0 0 0 / .04) 49% 49.35%, transparent 49.35% 74%, rgb(0 0 0 / .04) 74% 74.35%, transparent 74.35%),
    rgb(255 255 255 / 58%);
}

.dot {
  position: absolute;
  width: 18px;
  height: 18px;
  border: 3px solid white;
  border-radius: 999px;
  background: var(--accent);
  box-shadow: 0 8px 18px rgb(0 0 0 / .18);
  transform: translate(-50%, -50%);
}

.dot.fit-5 {
  background: var(--accent);
}

.dot.fit-4 {
  background: var(--cool);
}

.dot.fit-3 {
  background: var(--warm);
}

.dot.fit-2 {
  background: var(--muted);
}

.dot b,
.dot small {
  position: absolute;
  left: 16px;
  width: max-content;
  max-width: min(210px, 32vw);
  padding: .35rem .45rem;
  border-radius: 6px;
  background: rgb(255 255 255 / .88);
  color: var(--ink);
  font-size: .72rem;
  line-height: 1.2;
  opacity: 0;
  pointer-events: none;
  transform: translateY(-50%);
  transition: opacity .18s ease;
}

.dot small {
  top: 28px;
  color: var(--muted);
}

.dot:hover b,
.dot:focus b,
.dot:hover small,
.dot:focus small {
  opacity: 1;
}

.axis {
  position: absolute;
  color: var(--muted);
  font-size: .76rem;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: .08em;
}

.axis-x {
  right: 1rem;
  bottom: .75rem;
}

.axis-y {
  left: 1rem;
  top: .75rem;
}

.ribbon {
  grid-template-columns: auto 1fr auto;
}

.ribbon span {
  color: var(--accent-deep);
  font-weight: 900;
}

.year-grid {
  grid-column: 1 / -1;
  grid-template-columns: repeat(5, minmax(0, 1fr));
}

.year-tile {
  display: block;
}

.year-tile span,
.year-tile small {
  display: block;
  color: var(--muted);
  font-size: .78rem;
}

.year-tile strong {
  display: block;
  color: var(--accent-deep);
  font-family: var(--serif);
  font-size: clamp(1.6rem, 2.8vw, 2.35rem);
}

.pdf-page {
  scroll-margin-top: 86px;
  margin: 1rem 0;
}

.page-shell {
  display: grid;
  grid-template-columns: 112px minmax(0, 1fr);
  gap: 1rem;
  padding: clamp(1rem, 2.5vw, 2rem);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background:
    linear-gradient(180deg, rgb(255 255 255 / 62%), rgb(255 255 255 / 32%)),
    var(--panel);
  box-shadow: 0 1px 0 rgb(255 255 255 / .66) inset;
}

.site-playbook .page-shell {
  background:
    linear-gradient(90deg, color-mix(in srgb, var(--accent) 6%, transparent), transparent 34%),
    var(--panel);
}

.site-arc .page-shell {
  background:
    linear-gradient(180deg, color-mix(in srgb, var(--cool) 5%, transparent), transparent),
    var(--panel);
}

.page-marker {
  border-right: 1px solid var(--line);
  padding-right: 1rem;
  color: var(--muted);
}

.page-marker span {
  display: block;
  color: var(--accent-deep);
  font-weight: 900;
}

.page-marker small {
  font-size: .76rem;
}

.source-lines {
  min-width: 0;
  color: var(--ink);
  font-size: clamp(.96rem, 1.35vw, 1.08rem);
}

.source-line {
  min-height: 1.55em;
  overflow-wrap: anywhere;
}

.line-text {
  white-space: pre-wrap;
}

.is-blank {
  min-height: .85rem;
}

.is-doc-title,
.is-kicker-line {
  margin-top: .45rem;
  color: var(--accent-deep);
  font-size: .72em;
  font-weight: 850;
  letter-spacing: .13em;
  text-transform: uppercase;
}

.is-heading-line {
  margin-top: .4rem;
  color: var(--ink);
  font-family: var(--serif);
  font-size: 1.22em;
  line-height: 1.25;
}

.site-playbook .is-heading-line {
  font-family: var(--sans);
  font-weight: 820;
}

.is-table-line {
  margin: .24rem 0;
  padding: .25rem .45rem;
  border-left: 3px solid var(--accent);
  background: color-mix(in srgb, var(--accent) 7%, transparent);
  font-variant-numeric: tabular-nums;
}

.is-list-line {
  padding-left: .4rem;
}

.is-source-footer {
  margin-top: .55rem;
  color: var(--faint);
  font-size: .78em;
  letter-spacing: .03em;
}

mark {
  border-radius: 4px;
  background: color-mix(in srgb, var(--warm) 34%, white);
  color: var(--ink);
}

.site-footer {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: .8rem;
  padding: 1.2rem clamp(1rem, 3vw, 2rem);
  border-top: 1px solid var(--line);
  color: var(--muted);
  font-size: .82rem;
}

body.focus-mode .topbar,
body.focus-mode .reader-index,
body.focus-mode .insight-panel,
body.focus-mode .hero,
body.focus-mode .site-footer {
  opacity: .12;
  transition: opacity .2s ease;
}

body.focus-mode .topbar:hover,
body.focus-mode .reader-index:hover,
body.focus-mode .insight-panel:hover,
body.focus-mode .hero:hover,
body.focus-mode .site-footer:hover {
  opacity: 1;
}

@media (max-width: 980px) {
  .hero,
  .reader-layout,
  .insight-panel {
    grid-template-columns: 1fr;
  }

  .cover-frame {
    max-width: 440px;
  }

  .reader-index {
    position: static;
    order: -1;
  }

  .index-inner {
    position: static;
    border-left: 0;
    border-top: 3px solid var(--accent);
    padding-inline: 0;
  }

  .reader-index nav {
    display: flex;
    overflow-x: auto;
    padding-bottom: .2rem;
  }

  .reader-index a {
    flex: 0 0 auto;
  }

  .matrix {
    grid-column: auto;
  }

  .year-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 680px) {
  .topbar {
    align-items: flex-start;
  }

  .top-actions {
    flex-wrap: wrap;
    justify-content: flex-end;
  }

  .metrics {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .search-box {
    grid-template-columns: 1fr;
  }

  .page-shell {
    grid-template-columns: 1fr;
  }

  .page-marker {
    border-right: 0;
    border-bottom: 1px solid var(--line);
    padding: 0 0 .65rem;
  }

  .mix-row,
  .bar-row,
  .ribbon {
    grid-template-columns: 1fr;
  }
}

/* Final cascade overrides for the premium art direction. */
.reader-layout {
  width: min(1360px, calc(100% - 2rem));
  align-items: start;
}

.insight-panel {
  position: relative;
  overflow: hidden;
  min-height: 430px;
  margin-bottom: 1.4rem;
  border-radius: 14px;
  box-shadow: 0 24px 70px rgb(35 25 14 / .1);
}

.insight-panel::before {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background:
    linear-gradient(90deg, rgb(255 255 255 / .22), transparent 34%),
    repeating-linear-gradient(90deg, transparent 0 80px, rgb(0 0 0 / .035) 80px 81px);
}

.insight-panel > * {
  position: relative;
  z-index: 1;
}

.site-ramp .insight-panel {
  background:
    linear-gradient(135deg, color-mix(in srgb, var(--accent) 11%, white), transparent 46%),
    var(--panel);
}

.site-playbook .insight-panel {
  background:
    linear-gradient(90deg, color-mix(in srgb, var(--accent) 10%, white) 0 31%, transparent 31%),
    var(--panel);
}

.site-arc .insight-panel {
  background:
    linear-gradient(180deg, color-mix(in srgb, var(--warm) 14%, white), transparent 66%),
    linear-gradient(105deg, transparent 0 56%, color-mix(in srgb, var(--accent) 10%, transparent) 56% 57%, transparent 57%),
    var(--panel);
}

.page-shell {
  position: relative;
  overflow: hidden;
  border-radius: 12px;
  box-shadow: 0 14px 36px rgb(35 25 14 / .075);
}

.page-shell::before {
  content: "";
  position: absolute;
  inset: 0 auto 0 0;
  width: 7px;
  background: linear-gradient(180deg, var(--accent), color-mix(in srgb, var(--warm) 70%, var(--accent)));
}

.site-playbook .page-shell::before {
  width: 42px;
  opacity: .18;
  background:
    repeating-linear-gradient(180deg, var(--accent) 0 2px, transparent 2px 38px);
}

.site-arc .page-shell::before {
  width: 100%;
  height: 5px;
  inset: 0 0 auto;
}

.source-lines {
  display: grid;
  gap: .72rem;
  max-width: 840px;
  font-size: clamp(1rem, 1.2vw, 1.08rem);
}

.read-block {
  border: 1px solid color-mix(in srgb, var(--line) 72%, transparent);
  border-radius: 10px;
  background:
    linear-gradient(180deg, rgb(255 255 255 / .68), rgb(255 255 255 / .34)),
    color-mix(in srgb, var(--panel) 78%, white);
  box-shadow: 0 8px 22px rgb(35 25 14 / .045);
}

.read-prose {
  padding: .95rem 1rem;
  border-left: 4px solid color-mix(in srgb, var(--accent) 42%, var(--line));
}

.read-prose .source-line {
  display: inline;
  min-height: 0;
  line-height: 1.82;
  overflow-wrap: normal;
}

.read-prose .source-line + .source-line::before {
  content: " ";
}

.read-prose .line-text {
  white-space: normal;
}

.read-heading {
  border: 0;
  border-radius: 0;
  background: transparent;
  box-shadow: none;
  padding: .5rem 0 .1rem;
}

.read-heading .source-line {
  min-height: 0;
}

.read-heading .is-doc-title,
.read-heading .is-kicker-line {
  width: fit-content;
  max-width: 100%;
  padding: .34rem .5rem;
  border: 1px solid color-mix(in srgb, var(--accent) 26%, transparent);
  border-radius: 999px;
  background: color-mix(in srgb, var(--accent) 8%, transparent);
  font-size: .68em;
  line-height: 1.25;
}

.read-heading .is-heading-line {
  margin-top: .15rem;
  padding-top: .1rem;
  font-size: clamp(1.28rem, 2.2vw, 1.78rem);
}

.read-list {
  display: grid;
  gap: .38rem;
  padding: .9rem 1rem;
  background:
    linear-gradient(90deg, color-mix(in srgb, var(--accent) 7%, transparent), transparent 60%),
    rgb(255 255 255 / .5);
}

.read-list .source-line {
  min-height: 0;
  padding: .42rem .48rem .42rem .72rem;
  border-left: 2px solid color-mix(in srgb, var(--accent) 46%, var(--line));
  border-radius: 0 8px 8px 0;
  background: rgb(255 255 255 / .42);
}

.read-table {
  display: grid;
  gap: .35rem;
  padding: .85rem;
  overflow-x: auto;
  background:
    linear-gradient(90deg, rgb(255 255 255 / .72), rgb(255 255 255 / .38)),
    color-mix(in srgb, var(--accent) 5%, var(--panel));
}

.read-table .source-line {
  min-width: max-content;
  min-height: 0;
  margin: 0;
  padding: .42rem .56rem;
  border-left-width: 4px;
  border-radius: 7px;
  line-height: 1.45;
}

.read-footer {
  padding: .55rem .75rem;
  border-style: dashed;
  background: transparent;
}

.read-break {
  min-height: .28rem;
}

.page-marker {
  position: sticky;
  top: 96px;
  align-self: start;
}

.page-marker b {
  display: inline-block;
  margin-top: .6rem;
  padding: .22rem .46rem;
  border: 1px solid color-mix(in srgb, var(--accent) 25%, var(--line));
  border-radius: 999px;
  color: var(--accent-deep);
  font-size: .74rem;
  font-weight: 850;
}

.source-line {
  border-radius: 6px;
  cursor: text;
}

.source-line.is-current {
  background: color-mix(in srgb, var(--warm) 18%, white);
  box-shadow: 0 0 0 3px color-mix(in srgb, var(--warm) 12%, transparent);
}

.page-checkpoint {
  display: flex;
  justify-content: center;
  padding: .4rem 0 .2rem;
}

.page-checkpoint span {
  width: 54px;
  height: 4px;
  border-radius: 999px;
  background: linear-gradient(90deg, transparent, var(--accent), transparent);
  opacity: .42;
}

.site-playbook .read-prose {
  border-left-color: var(--accent);
}

.site-playbook .read-block {
  box-shadow: 6px 6px 0 rgb(35 111 126 / .045);
}

.site-arc .read-prose {
  border-left-color: var(--warm);
}

@media (min-width: 981px) {
  .site-playbook .reader-layout {
    grid-template-columns: 300px minmax(0, 1fr);
  }

  .site-arc .reader-layout {
    grid-template-columns: 230px minmax(0, 1fr);
  }
}

@media (max-width: 980px) {
  .hero {
    min-height: auto;
    padding-top: clamp(1.7rem, 6vw, 3rem);
  }

  .hero::before {
    inset: 3% -2% 4%;
  }

  .cover-frame {
    width: min(84vw, 400px);
    margin-inline: auto;
  }

  .insight-panel {
    min-height: auto;
  }
}

@media (max-width: 680px) {
  .topbar {
    align-items: center;
    min-height: 64px;
  }

  .hero {
    width: min(100% - 1.25rem, 560px);
    gap: 1.1rem;
  }

  .hero-copy::before {
    margin-bottom: .85rem;
  }

  .site-playbook .hero-copy::before {
    width: 58px;
    height: 58px;
  }

  h1 {
    font-size: clamp(2.55rem, 13vw, 4.4rem);
    line-height: .9;
  }

  .site-playbook h1 {
    font-size: clamp(2.25rem, 11vw, 4rem);
  }

  .site-arc h1 {
    font-size: clamp(3rem, 15vw, 5rem);
  }

  .hero-deck {
    margin-top: .85rem;
    font-size: 1rem;
  }

  .metrics {
    gap: .55rem;
    margin: 1.1rem 0;
  }

  .metric {
    padding: .82rem .78rem .78rem;
  }

  .metric strong {
    font-size: clamp(1.45rem, 8vw, 2rem);
  }

  .search-box {
    grid-template-columns: auto minmax(0, 1fr) auto;
    gap: .5rem;
    padding: .5rem;
  }

  .search-box button {
    padding-inline: .72rem;
  }

  .cover-frame {
    width: min(74vw, 330px);
  }

  .reader-layout {
    width: min(100% - 1.25rem, 560px);
  }

  .reader-index nav {
    scrollbar-width: none;
  }

  .reader-index nav::-webkit-scrollbar {
    display: none;
  }

  .insight-panel {
    padding: 1rem;
  }

  .insight-copy h2 {
    font-size: clamp(1.7rem, 9vw, 2.75rem);
  }

  .matrix {
    min-height: 330px;
  }

  .page-shell {
    padding: 1rem;
  }

  .page-marker {
    position: static;
  }

  .source-lines {
    gap: .62rem;
    font-size: 1rem;
  }

  .read-prose {
    padding: .85rem;
  }

  .read-prose .source-line {
    line-height: 1.78;
  }

  .read-heading .is-heading-line {
    font-size: clamp(1.22rem, 6.2vw, 1.62rem);
  }

  .read-list,
  .read-table {
    padding: .72rem;
  }
}

@media (prefers-reduced-motion: no-preference) {
  .hero-copy,
  .cover-frame,
  .reader-index,
  .insight-panel,
  .pdf-page {
    animation: rise-in .72s cubic-bezier(.22, .61, .36, 1) both;
  }

  .cover-frame {
    animation-delay: .08s;
  }

  .reader-index,
  .insight-panel {
    animation-delay: .16s;
  }

  .pdf-page {
    animation-delay: .22s;
  }

  .cover-frame:hover {
    transform: translateY(-4px) rotate(0deg);
  }

  .site-ramp .cover-frame:hover {
    transform: translateY(2px) rotate(-.75deg);
  }

  .site-playbook .cover-frame:hover {
    transform: translateY(-2px) rotate(.5deg);
  }

  .ambient-scene span {
    animation: quiet-drift 18s ease-in-out infinite alternate;
  }

  .ambient-scene span:nth-child(2) {
    animation-duration: 24s;
  }

  @keyframes rise-in {
    from {
      opacity: 0;
      translate: 0 18px;
    }
    to {
      opacity: 1;
      translate: 0 0;
    }
  }

  @keyframes quiet-drift {
    from {
      translate: 0 0;
    }
    to {
      translate: 14px -10px;
    }
  }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    scroll-behavior: auto !important;
    transition: none !important;
  }
}