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

html {
  -webkit-text-size-adjust: none;
  text-size-adjust: none;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
  scroll-behavior: smooth;
}

body {
  min-height: 100dvh;
  line-height: 1.6;
  font-family: var(--font-body);
  font-size: var(--text-base);
  color: var(--color-text);
  background-color: var(--color-bg);
}

img, svg, canvas { display: block; max-width: 100%; }
button { cursor: pointer; background: none; border: none; font: inherit; color: inherit; }
h1, h2, h3, h4 { text-wrap: balance; line-height: 1.15; font-family: var(--font-display); }
p { text-wrap: pretty; }
a { color: inherit; }

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

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
}

/* ============ TOKENS ============ */
:root {
  --text-xs: clamp(0.75rem, 0.72rem + 0.15vw, 0.8125rem);
  --text-sm: clamp(0.875rem, 0.84rem + 0.2vw, 0.9375rem);
  --text-base: clamp(1rem, 0.96rem + 0.2vw, 1.0625rem);
  --text-lg: clamp(1.125rem, 1.05rem + 0.4vw, 1.375rem);
  --text-xl: clamp(1.5rem, 1.3rem + 1vw, 2.1rem);
  --text-2xl: clamp(2rem, 1.5rem + 1.8vw, 2.75rem);

  --space-1: 0.25rem; --space-2: 0.5rem; --space-3: 0.75rem;
  --space-4: 1rem; --space-5: 1.25rem; --space-6: 1.5rem;
  --space-8: 2rem; --space-10: 2.5rem; --space-12: 3rem;
  --space-16: 4rem; --space-20: 5rem; --space-24: 6rem;

  --radius-sm: 0.25rem; --radius-md: 0.375rem; --radius-lg: 0.5rem; --radius-xl: 0.625rem;

  --font-display: 'General Sans', 'Cabinet Grotesk', system-ui, sans-serif;
  --font-body: 'Satoshi', 'Inter', system-ui, sans-serif;
  --font-mono: 'SF Mono', 'Roboto Mono', monospace;

  --transition: 180ms cubic-bezier(0.16, 1, 0.3, 1);

  /* Light mode: HimerAgile brand, deep navy + burnt-orange accent, ocean/depth motif */
  --color-bg: #F3F6F8;
  --color-surface: #FFFFFF;
  --color-surface-2: #F8FAFB;
  --color-surface-offset: #EAEFF3;
  --color-border: #DCE4EA;
  --color-divider: #E6EBEF;

  --color-text: #072136;
  --color-text-muted: #4E6376;
  --color-text-faint: #94A3AF;
  --color-text-inverse: #F7F9FA;

  --color-primary: #0C3C60;
  --color-primary-hover: #072136;
  --color-primary-highlight: #D7E4EC;
  --color-primary-soft: #EAF1F6;

  --color-teal: #1E7A99;
  --color-amber: #DA7B16;
  --color-rose: #B5562E;
  --color-sky: #4A9FD8;
  --color-violet: #C9922F;
  --color-slate: #5C6B7A;

  --shadow-sm: 0 1px 2px rgba(20, 20, 40, 0.05);
  --shadow-md: 0 6px 16px rgba(20, 20, 40, 0.07);
  --shadow-lg: 0 16px 40px rgba(20, 20, 40, 0.12);

  --content-max: 1280px;
}

[data-theme='dark'] {
  --color-bg: #0A0B12;
  --color-surface: #12141C;
  --color-surface-2: #161822;
  --color-surface-offset: #1B1E29;
  --color-border: #2A2D3A;
  --color-divider: #23252F;

  --color-text: #E7E8F0;
  --color-text-muted: #9498A8;
  --color-text-faint: #656B7C;
  --color-text-inverse: #12141C;

  --color-primary: #5FA3D4;
  --color-primary-hover: #8AC4EA;
  --color-primary-highlight: #16324A;
  --color-primary-soft: #11293B;

  --color-teal: #3FB6CE;
  --color-amber: #E8912E;
  --color-rose: #D07850;
  --color-sky: #7EC3EE;
  --color-violet: #E0B255;
  --color-slate: #8A98A8;

  --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.3);
  --shadow-md: 0 6px 16px rgba(0, 0, 0, 0.4);
  --shadow-lg: 0 16px 40px rgba(0, 0, 0, 0.5);
}

/* ============ LAYOUT SHELL ============ */
main { display: block; }
.topbar, .hero__inner, .insights, .filters, .charts, .cases, .site-footer {
  max-width: var(--content-max);
  margin-inline: auto;
  padding-inline: var(--space-6);
}

@media (min-width: 900px) {
  .topbar, .hero__inner, .insights, .filters, .charts, .cases, .site-footer { padding-inline: var(--space-10); }
}

/* ============ TOPBAR ============ */
.topbar {
  position: sticky;
  top: 0;
  z-index: 50;
  background: color-mix(in srgb, var(--color-bg) 88%, transparent);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--color-border);
}
.topbar__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-block: var(--space-4);
}
.brand { display: flex; align-items: center; gap: var(--space-3); }
.brand__mark-bg { color: var(--color-primary); }
.brand__logo-chip {
  display: flex;
  align-items: center;
  background: #FFFFFF;
  border-radius: 8px;
  padding: 4px 10px;
  border: 1px solid var(--color-border);
}
.brand__logo-img { height: 26px; width: auto; display: block; }
.brand__divider { width: 1px; height: 26px; background: var(--color-border); }
.brand__text { display: flex; flex-direction: column; line-height: 1.2; }
.brand__title { font-family: var(--font-display); font-weight: 700; font-size: var(--text-base); }
.brand__subtitle { font-size: var(--text-xs); color: var(--color-text-muted); }

.theme-toggle {
  width: 38px; height: 38px;
  display: grid; place-items: center;
  border-radius: var(--radius-full, 999px);
  border: 1px solid var(--color-border);
  color: var(--color-text-muted);
  transition: var(--transition);
}
.theme-toggle:hover { color: var(--color-primary); border-color: var(--color-primary); }

/* ============ HERO ============ */
.hero { padding-block: var(--space-16) var(--space-12); }
.eyebrow {
  display: inline-block;
  font-size: var(--text-xs);
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--color-primary);
  background: var(--color-primary-soft);
  padding: var(--space-2) var(--space-3);
  border-radius: var(--radius-full, 999px);
  margin-bottom: var(--space-5);
}
.hero__title {
  font-size: var(--text-2xl);
  font-weight: 700;
  letter-spacing: -0.01em;
  max-width: 20ch;
  margin-bottom: var(--space-5);
}
.accent-text { color: var(--color-primary); }
.hero__lede {
  font-size: var(--text-lg);
  color: var(--color-text-muted);
  max-width: 62ch;
  margin-bottom: var(--space-8);
}
.hero__stats {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-4);
  max-width: 520px;
}
@media (min-width: 640px) { .hero__stats { grid-template-columns: repeat(4, 1fr); } }
.hero-stat {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-4);
  display: flex; flex-direction: column; gap: var(--space-1);
  box-shadow: var(--shadow-sm);
}
.hero-stat__num { font-family: var(--font-display); font-size: var(--text-xl); font-weight: 700; font-variant-numeric: tabular-nums; color: var(--color-primary); }
.hero-stat__label { font-size: var(--text-xs); color: var(--color-text-muted); text-transform: uppercase; letter-spacing: 0.04em; }

/* ============ SECTION HEADS ============ */
section { padding-block: var(--space-12); }
.section-head { display: flex; flex-wrap: wrap; align-items: baseline; justify-content: space-between; gap: var(--space-4); margin-bottom: var(--space-6); }
.section-title { font-size: var(--text-xl); font-weight: 700; }
.section-title__scope { font-family: var(--font-body); font-weight: 400; font-size: var(--text-sm); color: var(--color-text-faint); }
.section-desc { font-size: var(--text-sm); color: var(--color-text-muted); }

/* ============ INSIGHT CARDS ============ */
.insight-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-5);
}
@media (min-width: 720px) { .insight-grid { grid-template-columns: repeat(2, 1fr); } }
@media (min-width: 1080px) { .insight-grid { grid-template-columns: repeat(3, 1fr); } }

.insight-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-left: 3px solid var(--color-primary);
  border-radius: var(--radius-lg);
  padding: var(--space-6);
  box-shadow: var(--shadow-sm);
  display: flex; flex-direction: column; gap: var(--space-3);
}
.insight-card__stat {
  font-family: var(--font-display);
  font-size: var(--text-xl);
  font-weight: 700;
  color: var(--color-primary);
  font-variant-numeric: tabular-nums;
}
.insight-card__title { font-size: var(--text-base); font-weight: 700; }
.insight-card__body { font-size: var(--text-sm); color: var(--color-text-muted); }

/* ============ FILTERS ============ */
.filters__meta { display: flex; align-items: center; gap: var(--space-4); font-size: var(--text-sm); color: var(--color-text-muted); }
.filters__count strong { color: var(--color-text); font-variant-numeric: tabular-nums; }
.btn-ghost {
  font-size: var(--text-sm);
  color: var(--color-primary);
  border: 1px solid var(--color-primary-highlight);
  background: var(--color-primary-soft);
  padding: var(--space-2) var(--space-3);
  border-radius: var(--radius-md);
  transition: var(--transition);
  font-weight: 600;
}
.btn-ghost:hover { background: var(--color-primary-highlight); }

.filter-groups { display: grid; gap: var(--space-5); }
.filter-group__label {
  font-size: var(--text-xs);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--color-text-faint);
  margin-bottom: var(--space-2);
  display: block;
}
.filter-pills { display: flex; flex-wrap: wrap; gap: var(--space-2); }
.pill {
  font-size: var(--text-sm);
  padding: var(--space-2) var(--space-4);
  border-radius: var(--radius-full, 999px);
  border: 1px solid var(--color-border);
  background: var(--color-surface);
  color: var(--color-text-muted);
  transition: var(--transition);
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  white-space: nowrap;
}
.pill:hover { border-color: var(--color-primary); color: var(--color-text); }
.pill.active {
  background: var(--color-primary);
  border-color: var(--color-primary);
  color: var(--color-text-inverse);
  font-weight: 600;
}
.pill__count {
  font-size: var(--text-xs);
  font-variant-numeric: tabular-nums;
  opacity: 0.75;
}

/* ============ CHARTS ============ */
.charts {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: var(--space-5);
}
@media (min-width: 900px) {
  .charts { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .chart-card--wide { grid-column: 1 / -1; }
}
.chart-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-6);
  box-shadow: var(--shadow-sm);
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
  min-width: 0;
  max-width: 100%;
}
.chart-card__head h3 { font-size: var(--text-base); font-weight: 700; margin-bottom: var(--space-1); }
.chart-card__head p { font-size: var(--text-sm); color: var(--color-text-muted); }
.chart-canvas-wrap { position: relative; height: 280px; }
.chart-canvas-wrap--tall { height: 360px; }

/* ============ MATRIX ============ */
.matrix-wrap { overflow-x: auto; padding-bottom: var(--space-2); }
.matrix {
  display: grid;
  border-collapse: collapse;
  min-width: 700px;
}
.matrix__corner, .matrix__col-head, .matrix__row-head, .matrix__cell {
  border: 1px solid var(--color-divider);
  padding: var(--space-3);
  font-size: var(--text-xs);
}
.matrix__corner { background: var(--color-surface-2); }
.matrix__col-head {
  background: var(--color-surface-2);
  font-weight: 700;
  text-align: center;
  color: var(--color-text-muted);
  writing-mode: horizontal-tb;
}
.matrix__row-head {
  background: var(--color-surface-2);
  font-weight: 700;
  color: var(--color-text);
  white-space: normal;
  line-height: 1.3;
  text-align: left;
}
.matrix__cell {
  text-align: center;
  font-weight: 700;
  font-variant-numeric: tabular-nums;
  color: var(--color-text);
  transition: var(--transition);
}
.matrix__cell--zero { color: var(--color-text-faint); font-weight: 400; }

/* ============ CASE CARDS ============ */
.case-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-5);
}
@media (min-width: 720px) { .case-grid { grid-template-columns: repeat(2, 1fr); } }
@media (min-width: 1200px) { .case-grid { grid-template-columns: repeat(3, 1fr); } }

.case-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-5);
  box-shadow: var(--shadow-sm);
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
  transition: var(--transition);
}
.case-card:hover { box-shadow: var(--shadow-md); transform: translateY(-2px); }

.case-card__top { display: flex; align-items: flex-start; justify-content: space-between; gap: var(--space-3); }
.case-card__company { font-family: var(--font-display); font-size: var(--text-base); font-weight: 700; }
.case-card__sector { font-size: var(--text-xs); color: var(--color-text-muted); }
.case-card__year { font-size: var(--text-xs); color: var(--color-text-faint); font-variant-numeric: tabular-nums; white-space: nowrap; }

.case-card__usecase { font-size: var(--text-sm); font-weight: 600; color: var(--color-text); }

.tag-row { display: flex; flex-wrap: wrap; gap: var(--space-2); }
.tag {
  font-size: var(--text-xs);
  padding: var(--space-1) var(--space-3);
  border-radius: var(--radius-full, 999px);
  font-weight: 600;
  white-space: nowrap;
}
.tag--ownership { background: var(--color-primary-soft); color: var(--color-primary); }
.tag--impact { background: var(--color-surface-offset); color: var(--color-text-muted); }

.case-card__metric {
  font-size: var(--text-sm);
  color: var(--color-text);
  background: var(--color-surface-2);
  border-radius: var(--radius-md);
  padding: var(--space-3);
  border: 1px solid var(--color-divider);
}
.case-card__metric strong { color: var(--color-primary); }

.case-card__desc { font-size: var(--text-sm); color: var(--color-text-muted); }
.case-card__desc + .case-card__desc { margin-top: calc(var(--space-2) * -1); }

.case-card__source {
  margin-top: auto;
  font-size: var(--text-xs);
  font-weight: 600;
  color: var(--color-primary);
  display: inline-flex;
  align-items: center;
  gap: var(--space-1);
}
.case-card__source:hover { text-decoration: underline; }

.empty-state {
  text-align: center;
  color: var(--color-text-muted);
  padding: var(--space-12) 0;
  font-size: var(--text-sm);
}

/* ============ FOOTER ============ */
.site-footer {
  padding-block: var(--space-10) var(--space-16);
  border-top: 1px solid var(--color-border);
  margin-top: var(--space-8);
}
.site-footer p { font-size: var(--text-xs); color: var(--color-text-faint); max-width: 80ch; }
.site-footer__links {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  margin-top: var(--space-4);
  font-size: var(--text-xs);
}
.site-footer__links a { color: var(--color-primary); font-weight: 600; text-decoration: none; }
.site-footer__links a:hover { text-decoration: underline; }
.site-footer__dot { color: var(--color-text-faint); }