/* KallosSim design system — matched to app.kallossim.com */

:root {
  --bg: oklch(0.97 0.012 78);
  --bg-sunk: oklch(0.94 0.016 78);
  --paper: oklch(0.99 0.006 78);
  --ink: oklch(0.18 0.012 60);
  --ink-soft: oklch(0.38 0.012 60);
  --ink-mute: oklch(0.58 0.010 60);
  --line: oklch(0.88 0.012 70);
  --accent: oklch(0.42 0.14 250);
  --accent-ink: oklch(0.28 0.12 250);
  --accent-tint: oklch(0.94 0.04 250);
  --ok: oklch(0.52 0.14 155);
  --ok-tint: oklch(0.95 0.04 155);
  --brand: oklch(0.42 0.14 250);

  --font-serif: "Newsreader", Georgia, serif;
  --font-sans: "IBM Plex Sans", system-ui, sans-serif;
  --font-mono: "IBM Plex Mono", "Courier New", monospace;

  --radius: 10px;
  --radius-sm: 6px;
  --shadow: 0 1px 4px oklch(0 0 0 / 0.07), 0 4px 18px oklch(0 0 0 / 0.06);
  --max-w: 1160px;
}

*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-sans);
  background: var(--bg);
  color: var(--ink);
  font-size: 15px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

a {
  color: inherit;
  text-decoration: none;
}

img {
  max-width: 100%;
}

.skip-link {
  position: absolute;
  top: -100px;
  left: 16px;
  z-index: 9999;
  background: var(--ink);
  color: #fff;
  padding: 10px 18px;
  font-size: 13px;
  border-radius: 0 0 8px 8px;
  transition: top 0.15s;
}

.skip-link:focus {
  top: 0;
}

/* Header */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: oklch(0.99 0.006 78 / 0.92);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--line);
}

.site-header__inner {
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 0 24px;
  height: 58px;
  display: flex;
  align-items: center;
  gap: 32px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
  flex-shrink: 0;
}

.brand__toggle {
  width: 28px;
  height: 17px;
  background: var(--ink);
  border-radius: 9px;
  position: relative;
  flex-shrink: 0;
}

.brand__toggle::after {
  content: "";
  position: absolute;
  top: 3px;
  left: 3px;
  width: 11px;
  height: 11px;
  background: var(--bg);
  border-radius: 50%;
}

.brand__name {
  font-family: var(--font-serif);
  font-size: 17px;
  font-weight: 500;
  letter-spacing: -0.01em;
  color: var(--ink);
}

.brand__sub {
  font-family: var(--font-mono);
  font-size: 12px;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--ink-mute);
  padding-top: 1px;
}

.site-nav {
  display: flex;
  align-items: center;
  gap: 6px;
  flex: 1;
}

.site-nav a {
  font-size: 13px;
  color: var(--ink-soft);
  padding: 6px 10px;
  border-radius: var(--radius-sm);
  transition: background 120ms, color 120ms;
  font-weight: 500;
}

.site-nav a:hover {
  background: var(--bg-sunk);
  color: var(--ink);
}

.site-header__cta {
  margin-left: auto;
  display: flex;
  align-items: center;
  gap: 10px;
  flex-shrink: 0;
}

.btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-family: var(--font-sans);
  font-size: 13px;
  font-weight: 600;
  padding: 8px 16px;
  border-radius: var(--radius);
  border: none;
  cursor: pointer;
  text-decoration: none;
  transition: background 120ms, color 120ms, box-shadow 120ms;
  white-space: nowrap;
}

.btn--ghost {
  background: transparent;
  color: var(--ink-soft);
  border: 1px solid var(--line);
}

.btn--ghost:hover {
  background: var(--bg-sunk);
  color: var(--ink);
}

.btn--primary {
  background: var(--ink);
  color: var(--bg);
}

.btn--primary:hover {
  background: oklch(0.28 0.012 60);
  box-shadow: 0 2px 8px oklch(0 0 0 / 0.18);
}

.btn--accent {
  background: var(--accent);
  color: #fff;
  font-size: 15px;
  padding: 12px 24px;
}

.btn--accent:hover {
  background: oklch(0.36 0.14 250);
  box-shadow: 0 2px 12px oklch(0.42 0.14 250 / 0.35);
}

.btn--outline {
  background: transparent;
  color: var(--ink);
  border: 1.5px solid var(--ink);
  font-size: 15px;
  padding: 11px 24px;
}

.btn--outline:hover {
  background: var(--bg-sunk);
}

.sector-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: var(--accent-tint);
  border: 1px solid oklch(0.75 0.08 250);
  color: var(--accent-ink);
  font-family: var(--font-mono);
  font-size: 10px;
  text-transform: uppercase;
  letter-spacing: 0.14em;
  padding: 5px 12px;
  border-radius: 20px;
  margin-bottom: 22px;
}

.sector-badge__dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--accent);
  flex-shrink: 0;
}

.hero {
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 80px 24px 72px;
  display: grid;
  grid-template-columns: 1fr 420px;
  gap: 60px;
  align-items: center;
}

.hero__heading {
  font-family: var(--font-serif);
  font-size: clamp(34px, 5vw, 54px);
  font-weight: 400;
  line-height: 1.08;
  letter-spacing: -0.02em;
  color: var(--ink);
  margin-bottom: 22px;
}

.hero__heading em {
  font-style: italic;
  color: var(--accent-ink);
}

.hero__sub {
  font-size: 16px;
  color: var(--ink-soft);
  line-height: 1.6;
  max-width: 480px;
  margin-bottom: 32px;
}

.hero__actions {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-wrap: wrap;
  margin-bottom: 28px;
}

.hero__proof {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--ink-mute);
  letter-spacing: 0.06em;
}

.hero__card {
  background: var(--paper);
  border: 1px solid var(--line);
  border-radius: 16px;
  padding: 28px;
  box-shadow: var(--shadow);
}

.hero__card-label {
  font-family: var(--font-mono);
  font-size: 9.5px;
  text-transform: uppercase;
  letter-spacing: 0.13em;
  color: var(--ink-mute);
  margin-bottom: 16px;
}

.hero__card-scenario {
  font-family: var(--font-serif);
  font-size: 18px;
  font-weight: 500;
  margin-bottom: 12px;
}

.hero__card-turn {
  font-size: 13px;
  color: var(--ink-soft);
  background: var(--bg-sunk);
  border-radius: 8px;
  padding: 10px 14px;
  margin-bottom: 8px;
  line-height: 1.5;
}

.hero__card-turn + .hero__card-turn {
  background: oklch(0.95 0.025 250);
  border-left: 2px solid var(--accent);
}

.hero__card-turn-label {
  font-size: 11px;
  font-family: var(--font-mono);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--ink-mute);
}

.hero__card-eval {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-top: 14px;
  font-size: 12px;
  color: var(--ok);
  font-family: var(--font-mono);
}

.hero__card-score {
  background: var(--ok-tint);
  border: 1px solid var(--ok);
  border-radius: 20px;
  padding: 2px 10px;
  font-size: 11px;
}

.proof-strip {
  background: var(--bg-sunk);
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  padding: 14px 24px;
}

.proof-strip__inner {
  max-width: var(--max-w);
  margin: 0 auto;
  display: flex;
  align-items: center;
  gap: 32px;
  flex-wrap: wrap;
  justify-content: center;
}

.proof-strip__item {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--ink-mute);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  display: flex;
  align-items: center;
  gap: 8px;
}

.proof-strip__item::before {
  content: "";
  display: inline-block;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--accent);
  flex-shrink: 0;
}

.section-label {
  font-family: var(--font-mono);
  font-size: 10px;
  text-transform: uppercase;
  letter-spacing: 0.14em;
  color: var(--accent-ink);
  margin-bottom: 14px;
}

.section-heading {
  font-family: var(--font-serif);
  font-size: clamp(28px, 4vw, 42px);
  font-weight: 400;
  line-height: 1.12;
  letter-spacing: -0.02em;
  margin-bottom: 18px;
}

.section-sub {
  font-size: 15px;
  color: var(--ink-soft);
  max-width: 520px;
  line-height: 1.65;
}

.stats-wrap {
  max-width: var(--max-w);
  margin: 64px auto 0;
  padding: 0 24px;
}

.stats-section {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  border: 1px solid var(--line);
  border-radius: 16px;
  overflow: hidden;
}

.stat {
  padding: 36px 28px;
  border-right: 1px solid var(--line);
  background: var(--paper);
}

.stat:last-child {
  border-right: none;
}

.stat__number {
  font-family: var(--font-serif);
  font-size: 56px;
  font-weight: 300;
  line-height: 1;
  letter-spacing: -0.03em;
  color: var(--ink);
  margin-bottom: 8px;
}

.stat__label {
  font-weight: 600;
  font-size: 14px;
  margin-bottom: 6px;
}

.stat__desc {
  font-size: 12px;
  color: var(--ink-mute);
  line-height: 1.5;
}

.scenarios-section,
.roles-section {
  max-width: var(--max-w);
  margin: 96px auto;
  padding: 0 24px;
}

.scenarios-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 12px;
  margin-top: 40px;
}

.scenario-card {
  background: var(--paper);
  border: 1px solid var(--line);
  border-radius: 14px;
  padding: 28px 28px 24px;
  transition: box-shadow 150ms;
  display: flex;
  flex-direction: column;
}

.scenario-card:hover {
  box-shadow: var(--shadow);
}

.scenario-card__tag {
  font-family: var(--font-mono);
  font-size: 12px;
  text-transform: uppercase;
  letter-spacing: 0.13em;
  color: var(--accent-ink);
  margin-bottom: 12px;
}

.scenario-card__title {
  font-family: var(--font-serif);
  font-size: 18px;
  font-weight: 500;
  margin-bottom: 10px;
  line-height: 1.25;
}

.scenario-card__desc {
  font-size: 13px;
  color: var(--ink-soft);
  line-height: 1.55;
  flex: 1;
}

.scenario-card__roles {
  display: flex;
  flex-wrap: wrap;
  gap: 5px;
  margin-top: 18px;
}

.role-pill {
  font-family: var(--font-mono);
  font-size: 12px;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  padding: 3px 9px;
  border-radius: 20px;
  background: var(--bg-sunk);
  color: var(--ink-mute);
  border: 1px solid var(--line);
}

.roles-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
  margin-top: 40px;
}

.role-card {
  background: var(--paper);
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 24px;
}

.role-card__title {
  font-weight: 700;
  font-size: 15px;
  margin-bottom: 8px;
}

.role-card__desc {
  font-size: 13px;
  color: var(--ink-soft);
  line-height: 1.55;
  margin-bottom: 14px;
}

.role-card__focuses {
  font-family: var(--font-mono);
  font-size: 10px;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--ink-mute);
}

.cta-band {
  padding: 32px 24px;
}

.cta-band__inner {
  max-width: var(--max-w);
  margin: 0 auto;
  background: var(--ink);
  border-radius: 20px;
  padding: 56px 60px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 48px;
}

.cta-band__text h2 {
  font-family: var(--font-serif);
  font-size: clamp(24px, 4vw, 38px);
  font-weight: 400;
  line-height: 1.18;
  letter-spacing: -0.02em;
  color: #fff;
  margin-bottom: 12px;
}

.cta-band__text p {
  font-size: 15px;
  color: oklch(0.78 0.01 60);
  max-width: 400px;
  line-height: 1.6;
}

.cta-band__meta {
  margin-top: 10px;
  font-family: var(--font-mono);
  font-size: 11px;
  color: oklch(0.6 0.01 60);
}

.cta-band__meta a {
  color: oklch(0.55 0.12 250);
  text-decoration: underline;
}

.cta-band__actions {
  display: flex;
  gap: 12px;
  flex-shrink: 0;
}

.cta-band__actions .btn--accent {
  background: oklch(0.6 0.18 250);
}

.cta-band__actions .btn--accent:hover {
  background: oklch(0.52 0.16 250);
}

.cta-band__actions .btn--ghost {
  color: oklch(0.78 0.01 60);
  border-color: oklch(0.35 0.01 60);
}

.cta-band__actions .btn--ghost:hover {
  background: oklch(0.25 0.01 60);
  color: #fff;
}

.site-footer {
  padding: 32px 24px;
}

.site-footer__inner {
  max-width: var(--max-w);
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  flex-wrap: wrap;
}

.site-footer__brand {
  font-family: var(--font-serif);
  font-size: 15px;
  color: var(--ink-mute);
}

.site-footer__links {
  display: flex;
  gap: 24px;
  flex-wrap: wrap;
}

.site-footer__links a {
  font-family: var(--font-mono);
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--ink-mute);
  transition: color 120ms;
}

  .site-footer__links a:hover {
  color: var(--ink);
}

/* Insights / articles */
.insights-hero {
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 56px 24px 32px;
}

.insights-hero h1 {
  font-family: var(--font-serif);
  font-size: clamp(2rem, 4vw, 2.75rem);
  line-height: 1.15;
  margin-bottom: 12px;
}

.insights-hero p {
  color: var(--ink-soft);
  max-width: 640px;
  font-size: 1.05rem;
}

.insights-grid {
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 0 24px 64px;
  display: grid;
  gap: 20px;
}

@media (min-width: 720px) {
  .insights-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

.insight-card {
  background: var(--paper);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 24px;
  box-shadow: var(--shadow);
  transition: border-color 120ms, transform 120ms;
}

.insight-card:hover {
  border-color: var(--accent);
  transform: translateY(-2px);
}

.insight-card__tag {
  font-family: var(--font-mono);
  font-size: 10px;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--accent);
  margin-bottom: 10px;
}

.insight-card h2 {
  font-family: var(--font-serif);
  font-size: 1.25rem;
  margin-bottom: 10px;
  line-height: 1.3;
}

.insight-card p {
  color: var(--ink-soft);
  font-size: 0.92rem;
  margin-bottom: 16px;
}

.insight-card__meta {
  font-family: var(--font-mono);
  font-size: 10px;
  color: var(--ink-mute);
  text-transform: uppercase;
  letter-spacing: 0.06em;
}

.article-wrap {
  max-width: 720px;
  margin: 0 auto;
  padding: 48px 24px 64px;
}

.article-wrap h1 {
  font-family: var(--font-serif);
  font-size: clamp(1.85rem, 4vw, 2.5rem);
  line-height: 1.2;
  margin-bottom: 12px;
}

.article-meta {
  font-family: var(--font-mono);
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--ink-mute);
  margin-bottom: 32px;
  padding-bottom: 24px;
  border-bottom: 1px solid var(--line);
}

.article-body h2 {
  font-family: var(--font-serif);
  font-size: 1.35rem;
  margin: 32px 0 12px;
}

.article-body h3 {
  font-size: 1rem;
  margin: 24px 0 8px;
}

.article-body p,
.article-body li {
  color: var(--ink-soft);
  margin-bottom: 16px;
}

.article-body ul,
.article-body ol {
  padding-left: 1.25rem;
  margin-bottom: 16px;
}

.article-body strong {
  color: var(--ink);
}

.article-cta {
  margin-top: 40px;
  padding: 28px;
  background: var(--accent-tint);
  border-radius: var(--radius);
  border: 1px solid var(--line);
}

.article-cta h2 {
  font-family: var(--font-serif);
  font-size: 1.25rem;
  margin-bottom: 8px;
}

.article-cta p {
  color: var(--ink-soft);
  margin-bottom: 16px;
}

.article-back {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--ink-mute);
  margin-bottom: 24px;
}

.article-back:hover {
  color: var(--accent);
}

/* Cookie banner — app-adjacent */
.m-cookie {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  background: var(--paper);
  border-top: 1px solid var(--line);
  padding: 16px 24px;
  z-index: 100;
  box-shadow: 0 -4px 20px oklch(0 0 0 / 0.06);
  display: none;
}

.m-cookie.show {
  display: block;
}

.m-cookie-inner {
  max-width: var(--max-w);
  margin: 0 auto;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}

.m-cookie p {
  margin: 0;
  font-size: 13px;
  color: var(--ink-soft);
  flex: 1;
  min-width: 240px;
}

.m-cookie-actions {
  display: flex;
  gap: 8px;
}

@media (max-width: 960px) {
  .hero {
    grid-template-columns: 1fr;
    gap: 40px;
    padding-top: 52px;
  }

  .hero__card {
    display: none;
  }

  .roles-grid {
    grid-template-columns: 1fr;
  }

  .cta-band__inner {
    flex-direction: column;
    padding: 40px 28px;
    text-align: center;
  }

  .cta-band__text p {
    max-width: none;
  }

  .stats-section {
    grid-template-columns: repeat(2, 1fr);
  }

  .stat:nth-child(2) {
    border-right: none;
  }

  .stat:nth-child(1),
  .stat:nth-child(2) {
    border-bottom: 1px solid var(--line);
  }

  .scenarios-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 640px) {
  .site-nav {
    display: none;
  }

  .hero__actions {
    flex-direction: column;
    align-items: flex-start;
  }

  .cta-band__actions {
    flex-direction: column;
    width: 100%;
  }

  .cta-band__actions .btn {
    width: 100%;
    justify-content: center;
  }
}