/* premium.css — agency-grade visual layer. Self-contained, no CDN.
   Layered on top of base styles; every rule degrades to a solid, readable default. */

:root {
  --p-font-scale: 1;
  --p-radius-sm: 10px;
  --p-radius: 18px;
  --p-radius-lg: 28px;
  --p-ease: cubic-bezier(0.22, 0.61, 0.36, 1);
  --p-ease-out: cubic-bezier(0.16, 1, 0.3, 1);

  /* elevation scale (layered, low-alpha = refined rather than heavy) */
  --p-shadow-1: 0 1px 2px rgba(16, 28, 20, 0.06), 0 2px 6px rgba(16, 28, 20, 0.05);
  --p-shadow-2: 0 2px 4px rgba(16, 28, 20, 0.05), 0 8px 20px rgba(16, 28, 20, 0.08);
  --p-shadow-3: 0 4px 8px rgba(16, 28, 20, 0.05), 0 18px 44px rgba(16, 28, 20, 0.12);
  --p-shadow-4: 0 8px 16px rgba(16, 28, 20, 0.06), 0 32px 72px rgba(16, 28, 20, 0.16);

  /* season-driven accents (defaults = summer) */
  --p-accent: #2f7a44;
  --p-accent-soft: #6fbf82;
  --p-accent-ink: #12351d;
  --p-mesh-1: rgba(47, 122, 68, 0.30);
  --p-mesh-2: rgba(122, 178, 70, 0.26);
  --p-mesh-3: rgba(24, 116, 128, 0.20);
  --p-glass-bg: rgba(255, 255, 255, 0.62);
  --p-glass-line: rgba(255, 255, 255, 0.75);
  --p-surface: #ffffff;
  --p-ink: #16241a;
  --p-ink-muted: #4d5f52;
}

/* ── Season themes ─────────────────────────────────────────────── */
html[data-season="spring"] {
  --p-accent: #4c9a2a;
  --p-accent-soft: #9ede73;
  --p-accent-ink: #1d3b12;
  --p-mesh-1: rgba(126, 200, 80, 0.30);
  --p-mesh-2: rgba(233, 168, 196, 0.22);
  --p-mesh-3: rgba(120, 200, 190, 0.20);
}
html[data-season="summer"] {
  --p-accent: #1f7a3d;
  --p-accent-soft: #58c07a;
  --p-accent-ink: #0e2f18;
  --p-mesh-1: rgba(31, 122, 61, 0.32);
  --p-mesh-2: rgba(214, 178, 60, 0.20);
  --p-mesh-3: rgba(24, 116, 128, 0.22);
}
html[data-season="autumn"] {
  --p-accent: #b5622a;
  --p-accent-soft: #e0a253;
  --p-accent-ink: #3d1f0b;
  --p-mesh-1: rgba(181, 98, 42, 0.30);
  --p-mesh-2: rgba(196, 148, 44, 0.24);
  --p-mesh-3: rgba(122, 74, 44, 0.20);
}
html[data-season="winter"] {
  --p-accent: #3c6e8f;
  --p-accent-soft: #8fb8cf;
  --p-accent-ink: #10242f;
  --p-mesh-1: rgba(60, 110, 143, 0.28);
  --p-mesh-2: rgba(140, 168, 190, 0.24);
  --p-mesh-3: rgba(72, 106, 96, 0.20);
  --p-glass-bg: rgba(248, 251, 253, 0.66);
}

/* ── Gradient mesh hero (pure CSS, no images) ──────────────────── */
.p-hero {
  position: relative;
  isolation: isolate;
  overflow: hidden;
  background:
    radial-gradient(58% 46% at 12% 8%, var(--p-mesh-1) 0%, transparent 62%),
    radial-gradient(46% 42% at 88% 4%, var(--p-mesh-2) 0%, transparent 60%),
    radial-gradient(64% 54% at 72% 96%, var(--p-mesh-3) 0%, transparent 64%),
    linear-gradient(178deg, #fbfdf9 0%, #f2f7ef 58%, #eaf1e6 100%);
}
.p-hero::before {
  /* fine grain overlay kills the flat-gradient "template" look */
  content: "";
  position: absolute;
  inset: -20%;
  z-index: -1;
  opacity: 0.05;
  pointer-events: none;
  background-image: radial-gradient(circle at 1px 1px, var(--p-ink) 1px, transparent 0);
  background-size: 4px 4px;
}
.p-hero__mesh {
  position: absolute;
  inset: -25%;
  z-index: -1;
  pointer-events: none;
  background:
    radial-gradient(38% 38% at 30% 30%, var(--p-mesh-1) 0%, transparent 70%),
    radial-gradient(34% 34% at 70% 62%, var(--p-mesh-2) 0%, transparent 70%);
  filter: blur(28px);
  will-change: transform;
}

/* ── Glassmorphism cards (solid fallback first) ────────────────── */
.p-glass {
  background: var(--p-surface);
  border: 1px solid rgba(22, 36, 26, 0.08);
  border-radius: var(--p-radius);
  box-shadow: var(--p-shadow-2);
}
@supports ((backdrop-filter: blur(1px)) or (-webkit-backdrop-filter: blur(1px))) {
  .p-glass {
    background: var(--p-glass-bg);
    -webkit-backdrop-filter: blur(16px) saturate(150%);
    backdrop-filter: blur(16px) saturate(150%);
    border-color: var(--p-glass-line);
    box-shadow: var(--p-shadow-2), inset 0 1px 0 rgba(255, 255, 255, 0.55);
  }
}
.p-card {
  position: relative;
  padding: clamp(20px, 3vw, 32px);
  transition: transform 0.42s var(--p-ease-out), box-shadow 0.42s var(--p-ease-out);
}
.p-card:hover { transform: translateY(-4px); box-shadow: var(--p-shadow-3); }
.p-card__eyebrow {
  font-size: 0.75rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  font-weight: 600;
  color: var(--p-accent);
}
.p-card__title { font-size: calc(1.25rem * var(--p-font-scale)); line-height: 1.25; margin: 0.35em 0 0.5em; }
.p-card__body { color: var(--p-ink-muted); line-height: 1.65; }

/* ── Buttons ───────────────────────────────────────────────────── */
.p-btn {
  display: inline-flex;
  align-items: center;
  gap: 0.55em;
  padding: 0.85em 1.6em;
  border-radius: 999px;
  font-weight: 600;
  font-size: 0.95rem;
  text-decoration: none;
  border: 1px solid transparent;
  transition: transform 0.3s var(--p-ease-out), box-shadow 0.3s var(--p-ease-out), background-color 0.3s;
}
.p-btn--primary {
  /* I3 P0-1: effen lichte accent-bg + donkere inkt → ≥4.5:1 over alle seizoenen
     (min: #12351d op #58c07a = 6.09:1) */
  background: var(--p-accent-soft);
  color: var(--p-accent-ink);
  box-shadow: var(--p-shadow-2);
}
.p-btn--primary:hover { transform: translateY(-2px); box-shadow: var(--p-shadow-3); }
.p-btn--ghost {
  background: transparent;
  color: var(--p-accent-ink);
  border-color: rgba(22, 36, 26, 0.18);
}
.p-btn--ghost:hover { background: rgba(22, 36, 26, 0.05); }

/* ── Elegant focus rings (keyboard only) ───────────────────────── */
:where(a, button, input, select, textarea, [tabindex]):focus { outline: none; }
:where(a, button, input, select, textarea, [tabindex]):focus-visible {
  outline: 2px solid var(--p-accent);
  outline-offset: 3px;
  border-radius: 6px;
}
.p-focus-ring {
  box-shadow: 0 0 0 3px color-mix(in srgb, var(--p-accent) 28%, transparent);
}

/* ── Motion primitives ─────────────────────────────────────────── */
[data-reveal] { opacity: 0; transform: translate3d(0, 22px, 0); }
[data-reveal="left"] { transform: translate3d(-24px, 0, 0); }
[data-reveal="right"] { transform: translate3d(24px, 0, 0); }
[data-reveal="zoom"] { transform: scale(0.96); }
[data-reveal].is-visible {
  opacity: 1;
  transform: none;
  transition: opacity 0.7s var(--p-ease-out), transform 0.7s var(--p-ease-out);
}
/* no-JS safety net: reveal is hidden only once motion.js opts in.
   NOTE: these base rules must stay LOWER specificity than the
   is-visible rule below, or revealed items never become visible. */
html.js-motion [data-reveal] { opacity: 0; transform: translate3d(0, 22px, 0); }
html.js-motion [data-reveal="left"] { transform: translate3d(-24px, 0, 0); }
html.js-motion [data-reveal="right"] { transform: translate3d(24px, 0, 0); }
html.js-motion [data-reveal="zoom"] { transform: scale(0.96); }
html.js-motion [data-reveal].is-visible {
  opacity: 1;
  transform: none;
  transition: opacity 0.7s var(--p-ease-out), transform 0.7s var(--p-ease-out);
}
html:not(.js-motion) [data-reveal] { opacity: 1; transform: none; }

.site-header {
  transition: padding 0.35s var(--p-ease), background-color 0.35s var(--p-ease), box-shadow 0.35s var(--p-ease);
}
.site-header.is-shrunk {
  padding-block: 0.4rem;
  background: var(--p-glass-bg);
  box-shadow: var(--p-shadow-1);
}
@supports ((backdrop-filter: blur(1px)) or (-webkit-backdrop-filter: blur(1px))) {
  .site-header.is-shrunk {
    -webkit-backdrop-filter: blur(14px) saturate(140%);
    backdrop-filter: blur(14px) saturate(140%);
  }
}

.p-stat__value {
  font-variant-numeric: tabular-nums;
  font-weight: 700;
  letter-spacing: -0.02em;
  font-size: calc(2.4rem * var(--p-font-scale));
  color: var(--p-accent-ink);
}
.p-stat__label { color: var(--p-ink-muted); font-size: 0.9rem; }

/* ── Season widget ─────────────────────────────────────────────── */
.p-season {
  border-radius: var(--p-radius-lg);
  padding: clamp(22px, 3.4vw, 40px);
  background:
    radial-gradient(70% 60% at 100% 0%, var(--p-mesh-2) 0%, transparent 60%),
    var(--p-surface);
  box-shadow: var(--p-shadow-2);
}
.p-season__list { display: grid; gap: 14px; list-style: none; margin: 1.2em 0 0; padding: 0; }
.p-season__item {
  display: grid;
  grid-template-columns: 44px 1fr auto;
  align-items: center;
  gap: 16px;
  padding: 14px 16px;
  border-radius: var(--p-radius-sm);
  background: rgba(22, 36, 26, 0.035);
  border: 1px solid rgba(22, 36, 26, 0.06);
}
.p-season__icon {
  width: 44px; height: 44px;
  display: grid; place-items: center;
  border-radius: 12px;
  background: color-mix(in srgb, var(--p-accent) 12%, #fff);
  color: var(--p-accent);
}
.p-season__type {
  font-size: 0.7rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  font-weight: 700;
  color: var(--p-accent-ink);
}
.p-season__name { font-weight: 600; }
.p-season__badge {
  font-size: 0.78rem;
  padding: 0.3em 0.75em;
  border-radius: 999px;
  background: var(--p-accent-soft);
  color: var(--p-accent-ink); /* I3 P0-1: donkere inkt op lichte accent ≥4.5:1 alle seizoenen */
  font-variant-numeric: tabular-nums;
}

/* ── Reduced motion ────────────────────────────────────────────── */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.001ms !important;
    scroll-behavior: auto !important;
  }
  [data-reveal] { opacity: 1 !important; transform: none !important; }
  .p-card:hover, .p-btn:hover { transform: none; }
}

/* ── Print safety ──────────────────────────────────────────────── */
@media print {
  .p-hero__mesh, .site-header, .p-btn, .p-season__icon, .no-print { display: none !important; }
  .p-hero, .p-glass, .p-season {
    background: #fff !important;
    box-shadow: none !important;
    border: 1px solid #ccc !important;
    -webkit-backdrop-filter: none !important;
    backdrop-filter: none !important;
  }
  [data-reveal] { opacity: 1 !important; transform: none !important; }
  .p-card:hover { transform: none !important; }
  a[href^="http"]::after { content: " (" attr(href) ")"; font-size: 0.8em; color: #555; }
}

/* ── Dark mode tokens (premium layer) ──────────────────────────── */
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --p-glass-bg: rgba(24, 33, 22, 0.66);
    --p-glass-line: rgba(238, 243, 230, 0.16);
    --p-surface: #182116;
    --p-ink: #eef3e6;
    --p-ink-muted: #b7c6ae;
    --p-shadow-1: 0 1px 2px rgba(0, 0, 0, 0.5), 0 2px 6px rgba(0, 0, 0, 0.4);
    --p-shadow-2: 0 2px 4px rgba(0, 0, 0, 0.45), 0 8px 20px rgba(0, 0, 0, 0.5);
    --p-shadow-3: 0 4px 8px rgba(0, 0, 0, 0.45), 0 18px 44px rgba(0, 0, 0, 0.6);
  }
}
[data-theme="dark"] {
  --p-glass-bg: rgba(24, 33, 22, 0.66);
  --p-glass-line: rgba(238, 243, 230, 0.16);
  --p-surface: #182116;
  --p-ink: #eef3e6;
  --p-ink-muted: #b7c6ae;
  --p-shadow-1: 0 1px 2px rgba(0, 0, 0, 0.5), 0 2px 6px rgba(0, 0, 0, 0.4);
  --p-shadow-2: 0 2px 4px rgba(0, 0, 0, 0.45), 0 8px 20px rgba(0, 0, 0, 0.5);
  --p-shadow-3: 0 4px 8px rgba(0, 0, 0, 0.45), 0 18px 44px rgba(0, 0, 0, 0.6);
}
[data-theme="dark"] .p-glass { border-color: rgba(238, 243, 230, 0.14); }
[data-theme="dark"] .p-season__icon { background: color-mix(in srgb, var(--p-accent) 22%, #10160f); }
[data-theme="dark"] .p-btn--ghost { color: var(--p-ink); border-color: rgba(238, 243, 230, 0.28); }
[data-theme="dark"] .p-btn--ghost:hover { background: rgba(238, 243, 230, 0.08); }
[data-theme="dark"] .p-hero {
  background:
    radial-gradient(58% 46% at 12% 8%, var(--p-mesh-1) 0%, transparent 62%),
    radial-gradient(46% 42% at 88% 4%, var(--p-mesh-2) 0%, transparent 60%),
    radial-gradient(64% 54% at 72% 96%, var(--p-mesh-3) 0%, transparent 64%),
    linear-gradient(178deg, #131b12 0%, #10160f 58%, #0c120b 100%);
}

/* ── Theme toggle (header) ─────────────────────────────────────── */
.theme-toggle {
  display: inline-grid; place-items: center;
  width: 2.25rem; height: 2.25rem; padding: 0;
  border-radius: 50%; border: 1px solid var(--border, rgba(22,36,26,0.12));
  background: var(--bg-raised, #fff); color: var(--text-primary, #16241a);
  cursor: pointer; transition: background 180ms ease, transform 0.2s ease;
}
.theme-toggle:hover { background: var(--color-leaf-100, #dcefd3); transform: rotate(-12deg); }
.theme-toggle__icon {
  width: 1.05rem; height: 1.05rem; border-radius: 50%;
  background: radial-gradient(circle at 32% 32%, #f5d97a 0 38%, #b5622a 39% 100%);
  box-shadow: inset -3px -2px 0 rgba(0, 0, 0, 0.25);
}
[data-theme="dark"] .theme-toggle__icon {
  background: radial-gradient(circle at 68% 30%, #eef3e6 0 34%, transparent 35%), #3c6e8f;
}
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) .theme-toggle__icon {
    background: radial-gradient(circle at 68% 30%, #eef3e6 0 34%, transparent 35%), #3c6e8f;
  }
}

/* ── Statsrij (counters) ───────────────────────────────────────── */
.p-stats {
  display: flex; flex-wrap: wrap; gap: clamp(1.5rem, 4vw, 3.5rem);
  margin: 0 0 var(--space-6, 2.5rem); padding: var(--space-4, 1.5rem) 0;
  border-top: 1px solid var(--border, rgba(22,36,26,0.1)); border-bottom: 1px solid var(--border, rgba(22,36,26,0.1));
}
.p-stat { display: flex; flex-direction: column; gap: 0.15rem; min-width: 8rem; }
.p-stat .p-stat__value { font-size: calc(2rem * var(--p-font-scale)); }