/* =========================================================================
   COMPONENTS — Header/Hero/Plan/Checklist/Timeline/Benchmark
   Premium, editorial, 2026 CSS features (scroll-driven, view-transitions)
   ========================================================================= */

/* ---- Header / Navigation -------------------------------------------------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  backdrop-filter: blur(14px) saturate(1.4);
  -webkit-backdrop-filter: blur(14px) saturate(1.4);
  background: color-mix(in oklch, var(--bg) 78%, transparent);
  border-bottom: 1px solid transparent;
  transition: border-color var(--dur-m), padding var(--dur-m);
}
.site-header.is-scrolled { border-bottom-color: var(--border); }

.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 2rem;
  padding-block: 1.25rem;
}

.brand {
  font-family: var(--font-display);
  font-size: var(--step-1);
  font-weight: 460;
  letter-spacing: -0.02em;
  color: var(--fg);
  text-decoration: none;
  display: inline-flex;
  align-items: baseline;
  gap: 0.5rem;
}
.brand::before {
  content: '';
  width: 10px; height: 10px;
  border-radius: 50%;
  background: var(--accent-warm);
  display: inline-block;
  transform: translateY(-1px);
}

.nav-links {
  display: flex;
  gap: clamp(1rem, 2vw, 2rem);
  list-style: none;
  margin: 0; padding: 0;
  font-size: var(--step--1);
}
.nav-links a {
  text-decoration: none;
  color: var(--fg-muted);
  font-weight: 500;
  padding-block: 0.5rem;
  position: relative;
}
.nav-links a:hover { color: var(--fg); }
.nav-links a::after {
  content: '';
  position: absolute;
  left: 0; right: 0; bottom: 0;
  height: 1px;
  background: currentColor;
  transform: scaleX(0);
  transform-origin: left;
  transition: transform var(--dur-m) var(--ease-out-quart);
}
.nav-links a:hover::after { transform: scaleX(1); }

@container (max-width: 44rem) {
  .nav-links { display: none; }
}

/* Language switcher */
.lang-switch {
  display: flex;
  gap: 1px;
  background: var(--border);
  border-radius: 999px;
  padding: 3px;
  font-size: var(--step--2);
  font-weight: 600;
  letter-spacing: 0.08em;
}
.lang-switch button {
  background: transparent;
  border: 0;
  padding: 0.4rem 0.85rem;
  border-radius: 999px;
  cursor: pointer;
  color: var(--fg-muted);
  font: inherit;
  text-transform: uppercase;
  transition: color var(--dur-s), background var(--dur-s);
}
.lang-switch button[aria-pressed="true"] {
  background: var(--bg-elevated);
  color: var(--fg);
  box-shadow: var(--shadow-low);
}

/* ---- Hero ----------------------------------------------------------------- */
.hero {
  padding-block: clamp(6rem, 14vw, 12rem) clamp(4rem, 8vw, 8rem);
  position: relative;
  overflow: clip;
}
.hero__eyebrow {
  margin-bottom: 2rem;
  display: block;
}
.hero__title {
  font-size: var(--step-6);
  font-weight: 400;
  line-height: 0.98;
  letter-spacing: -0.04em;
  max-width: 18ch;
  text-wrap: balance;
}
.hero__title em {
  font-style: italic;
  color: var(--accent);
  font-weight: 420;
  font-variation-settings: 'SOFT' 100, 'WONK' 1;
}
.hero__lead {
  margin-top: 2rem;
  max-width: 40ch;
  font-size: var(--step-1);
  line-height: 1.45;
  color: var(--fg-muted);
  font-weight: 340;
  font-family: var(--font-display);
  font-variation-settings: 'opsz' 60;
}
.hero__meta {
  margin-top: 3rem;
  display: flex;
  flex-wrap: wrap;
  gap: 2rem;
  font-size: var(--step--1);
  color: var(--fg-faint);
}
.hero__meta dt {
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.14em;
  font-size: var(--step--2);
  color: var(--accent-warm);
  margin-bottom: 0.3rem;
}
.hero__meta dd {
  margin: 0;
  font-size: var(--step-0);
  color: var(--fg);
}

/* Decorative scroll-driven ornament */
.hero__ornament {
  position: absolute;
  inset: 0;
  pointer-events: none;
  opacity: 0.5;
  mix-blend-mode: multiply;
}
.hero__ornament svg { width: 100%; height: 100%; }

/* ---- Plan Horizon Nav ---------------------------------------------------- */
.horizons {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0;
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}
.horizon {
  padding: clamp(2rem, 4vw, 3.5rem);
  border-right: 1px solid var(--border);
  background: var(--bg-subtle);
  transition: background var(--dur-m);
  text-decoration: none;
  color: inherit;
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 1rem;
}
.horizon:last-child { border-right: 0; }
.horizon:hover { background: var(--bg-elevated); }
.horizon:hover .horizon__arrow { transform: translateX(6px); }

.horizon__num {
  font-family: var(--font-display);
  font-size: var(--step-5);
  font-weight: 380;
  color: var(--accent);
  line-height: 1;
  font-variation-settings: 'opsz' 144;
}
.horizon__title {
  font-size: var(--step-2);
  font-weight: 500;
  font-family: var(--font-display);
}
.horizon__period {
  font-size: var(--step--1);
  color: var(--fg-muted);
  text-transform: uppercase;
  letter-spacing: 0.12em;
  font-weight: 600;
}
.horizon__lead {
  color: var(--fg-muted);
  font-size: var(--step-0);
  max-width: 32ch;
}
.horizon__arrow {
  margin-top: auto;
  font-size: var(--step-1);
  color: var(--accent-warm);
  transition: transform var(--dur-m) var(--ease-out-quart);
}

@container (max-width: 52rem) {
  .horizons { grid-template-columns: 1fr; }
  .horizon { border-right: 0; border-bottom: 1px solid var(--border); }
  .horizon:last-child { border-bottom: 0; }
}

/* ---- Plan Section / Pillars --------------------------------------------- */
.pillar {
  display: grid;
  grid-template-columns: 6rem 1fr;
  gap: clamp(1.5rem, 3vw, 3rem);
  padding-block: clamp(2.5rem, 5vw, 4rem);
  border-top: 1px solid var(--border);
}
.pillar:first-child { border-top: 0; }
.pillar__num {
  font-family: var(--font-display);
  font-size: var(--step-4);
  font-weight: 380;
  color: var(--accent);
  line-height: 1;
  font-variation-settings: 'opsz' 144;
}
.pillar__title {
  font-size: var(--step-3);
  font-weight: 460;
  line-height: 1.1;
  font-family: var(--font-display);
  margin-bottom: 0.5rem;
}
.pillar__lead {
  font-size: var(--step-1);
  line-height: 1.45;
  color: var(--fg-muted);
  max-width: 58ch;
  font-family: var(--font-display);
  font-weight: 340;
}

@container (max-width: 44rem) {
  .pillar { grid-template-columns: 1fr; }
}

/* ---- Checklist ----------------------------------------------------------- */
.checklist {
  list-style: none;
  margin: 0; padding: 0;
  display: flex;
  flex-direction: column;
  gap: 0.15rem;
}
.checklist li {
  display: grid;
  grid-template-columns: 1.75rem 1fr auto;
  align-items: start;
  gap: 1rem;
  padding: 1rem 0;
  border-bottom: 1px solid var(--border);
  font-size: var(--step-0);
  position: relative;
}
.checklist li::before {
  content: '';
  width: 1.1rem; height: 1.1rem;
  border: 1.5px solid var(--border-strong);
  border-radius: 4px;
  margin-top: 0.25rem;
  transition: background var(--dur-s), border-color var(--dur-s);
}
.checklist li:hover::before {
  border-color: var(--accent-warm);
  background: color-mix(in oklch, var(--accent-warm) 15%, transparent);
}
.checklist li[data-priority="high"] .tag { background: var(--ember-300); color: oklch(30% 0.1 55); }
.checklist li[data-priority="mid"] .tag  { background: color-mix(in oklch, var(--forest-500) 22%, transparent); color: var(--forest-900); }
.checklist li[data-priority="low"] .tag  { background: var(--paper-200); color: var(--ink-500); }

.tag {
  font-size: var(--step--2);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  padding: 0.25rem 0.6rem;
  border-radius: 999px;
  white-space: nowrap;
  align-self: center;
}

/* ---- Benchmark / stats --------------------------------------------------- */
.stats {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(10rem, 1fr));
  gap: 0;
  border-block: 1px solid var(--border);
}
.stat {
  padding: clamp(1.5rem, 3vw, 2.5rem);
  border-right: 1px solid var(--border);
}
.stat:last-child { border-right: 0; }

.stat__value {
  font-family: var(--font-display);
  font-size: var(--step-4);
  font-weight: 400;
  color: var(--accent);
  line-height: 1;
  font-variation-settings: 'opsz' 144;
  display: block;
}
.stat__unit {
  font-size: var(--step-0);
  color: var(--fg-muted);
  font-weight: 500;
}
.stat__label {
  margin-top: 0.75rem;
  font-size: var(--step--2);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--fg-faint);
  font-weight: 600;
}

/* ---- Timeline ------------------------------------------------------------ */
.timeline {
  position: relative;
  margin-top: 2rem;
}
.timeline::before {
  content: '';
  position: absolute;
  left: 8px; top: 6px; bottom: 6px;
  width: 1px;
  background: var(--border-strong);
}
.tl-item {
  position: relative;
  padding: 0 0 2.5rem 2.5rem;
}
.tl-item::before {
  content: '';
  position: absolute;
  left: 4px; top: 0.5rem;
  width: 10px; height: 10px;
  border-radius: 50%;
  background: var(--bg);
  border: 2px solid var(--accent);
}
.tl-item[data-milestone="true"]::before {
  background: var(--accent-warm);
  border-color: var(--accent-warm);
  box-shadow: 0 0 0 4px color-mix(in oklch, var(--accent-warm) 25%, transparent);
}
.tl-item__date {
  font-size: var(--step--2);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--accent-warm);
}
.tl-item__title {
  margin-top: 0.4rem;
  font-size: var(--step-1);
  font-weight: 540;
  font-family: var(--font-display);
}
.tl-item__note {
  margin-top: 0.4rem;
  color: var(--fg-muted);
  max-width: 55ch;
}

/* ---- Benchmark-Tabelle --------------------------------------------------- */
.bench {
  width: 100%;
  border-collapse: collapse;
  font-size: var(--step--1);
  margin-top: 1.5rem;
}
.bench th, .bench td {
  padding: 0.9rem 1rem;
  text-align: left;
  border-bottom: 1px solid var(--border);
  vertical-align: top;
}
.bench th {
  font-weight: 700;
  color: var(--fg-muted);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  font-size: var(--step--2);
}
.bench tbody tr:hover { background: var(--bg-subtle); }
.bench td.num {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-size: var(--step--1);
  color: var(--accent);
  font-weight: 600;
}

/* ---- Pull-quote (editorial) --------------------------------------------- */
.pullquote {
  font-family: var(--font-display);
  font-size: var(--step-3);
  font-weight: 380;
  line-height: 1.2;
  font-style: italic;
  text-wrap: balance;
  max-width: 24ch;
  color: var(--fg);
  padding: clamp(1.5rem, 3vw, 3rem) 0;
  border-block: 1px solid var(--accent-warm);
  position: relative;
  font-variation-settings: 'SOFT' 100, 'WONK' 1, 'opsz' 100;
}
.pullquote::before {
  content: '\201C';
  position: absolute;
  top: -0.7em;
  left: -0.15em;
  font-size: 4em;
  line-height: 1;
  color: var(--accent-warm);
  opacity: 0.25;
}

/* ---- Footer -------------------------------------------------------------- */
.site-footer {
  padding-block: 4rem;
  border-top: 1px solid var(--border);
  background: var(--bg-subtle);
  color: var(--fg-muted);
  font-size: var(--step--1);
}
.site-footer .shell {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr;
  gap: 2rem;
}
@container (max-width: 48rem) {
  .site-footer .shell { grid-template-columns: 1fr; }
}