:root {
  --navy: #0F2C4C;
  --navy-light: #1E3A5F;
  --sand-bg: #F8FAFC;
  --white: #FFFFFF;
  --slate-text: #1E293B;
  --slate-muted: #475569;
  --border-subtle: #E2E8F0;

  /* Fase 1: LEREN (Zonnig Duingeel) */
  --leren-main: #F59E0B;
  --leren-dark: #92400E;
  --leren-bg: #FFFBEB;
  --leren-border: #FDE68A;

  /* Fase 2: PLANNEN (Helder Getijdenblauw) */
  --plannen-main: #0284C7;
  --plannen-dark: #075985;
  --plannen-bg: #F0F9FF;
  --plannen-border: #BAE6FD;

  /* Fase 3: DOEN (Signaalboei Koraal/Roze) */
  --doen-main: #E11D48;
  --doen-dark: #9F1239;
  --doen-bg: #FFF1F2;
  --doen-border: #FECDD3;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  font-family: system-ui, -apple-system, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
  color: var(--slate-text);
  background-color: var(--sand-bg);
  line-height: 1.65;
}

body {
  margin: 0;
  padding: 0;
}

.container {
  max-width: 1180px;
  margin: 0 auto;
  padding: 0 1.25rem;
}

/* Header & Navigation */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background-color: rgba(15, 44, 76, 0.96);
  backdrop-filter: blur(8px);
  color: var(--white);
  border-bottom: 3px solid var(--plannen-main);
  box-shadow: 0 2px 12px rgba(15, 44, 76, 0.18);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.65rem 1.25rem;
  gap: 1rem;
  flex-wrap: wrap;
}

.brand {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  text-decoration: none;
  color: var(--white);
}

.brand-icon {
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: var(--white);
  padding: 2px;
}

.brand-text {
  display: flex;
  flex-direction: column;
}

.brand-title {
  font-weight: 800;
  font-size: 1.15rem;
  letter-spacing: -0.01em;
}

.brand-sub {
  font-size: 0.78rem;
  color: #BAE6FD;
}

.site-nav {
  display: flex;
  align-items: center;
  gap: 0.45rem;
  flex-wrap: wrap;
}

.nav-link {
  color: #E2E8F0;
  text-decoration: none;
  font-size: 0.9rem;
  font-weight: 700;
  padding: 0.4rem 0.75rem;
  border-radius: 999px;
  transition: background-color 0.15s ease, color 0.15s ease;
}

.nav-link:hover {
  background-color: rgba(255, 255, 255, 0.14);
  color: var(--white);
}

.nav-leren { border-bottom: 2px solid var(--leren-main); }
.nav-plannen { border-bottom: 2px solid var(--plannen-main); }
.nav-doen { border-bottom: 2px solid var(--doen-main); }
.nav-cta {
  background-color: var(--plannen-main);
  color: var(--white);
}

/* Hero Section */
.hero-section {
  padding: 2.5rem 0 2rem;
  background: radial-gradient(circle at 75% 45%, #FFFFFF 0%, #F1F5F9 100%);
  border-bottom: 1px solid var(--border-subtle);
}

.hero-grid {
  display: grid;
  grid-template-columns: 1fr 1.15fr;
  gap: 2.5rem;
  align-items: center;
}

.eyebrow {
  display: inline-block;
  font-size: 0.8rem;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--plannen-dark);
  background: var(--plannen-border);
  padding: 0.25rem 0.7rem;
  border-radius: 999px;
  margin-bottom: 0.75rem;
}

.hero-copy h1 {
  font-size: 2.35rem;
  line-height: 1.18;
  color: var(--navy);
  margin: 0 0 1rem;
  font-weight: 900;
}

.hero-lead {
  font-size: 1.1rem;
  color: var(--slate-text);
  margin-bottom: 1.5rem;
}

.phase-Quicknav {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0.75rem;
  margin-bottom: 1.25rem;
}

.phase-chip {
  display: flex;
  flex-direction: column;
  padding: 0.7rem 0.85rem;
  border-radius: 0.75rem;
  text-decoration: none;
  color: var(--navy);
  border: 2px solid transparent;
  transition: transform 0.15s ease, box-shadow 0.15s ease;
}

.phase-chip:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 14px rgba(15, 44, 76, 0.08);
}

.chip-points {
  font-size: 0.75rem;
  font-weight: 800;
  opacity: 0.8;
}

.phase-chip strong {
  font-size: 1rem;
  margin: 0.1rem 0;
}

.phase-chip span:last-child {
  font-size: 0.8rem;
  color: var(--slate-muted);
}

.chip-leren { background: var(--leren-bg); border-color: var(--leren-main); }
.chip-plannen { background: var(--plannen-bg); border-color: var(--plannen-main); }
.chip-doen { background: var(--doen-bg); border-color: var(--doen-main); }

.wheel-hint {
  font-size: 0.92rem;
  background: #FFFFFF;
  border-left: 4px solid var(--navy);
  padding: 0.65rem 0.95rem;
  border-radius: 0.4rem;
  color: var(--slate-muted);
  margin: 0;
}

.hero-wheel-box {
  max-width: 640px;
  margin: 0 auto;
  width: 100%;
}

/* Punt 13 Philosophy Section */
.philosophy-section {
  padding: 2rem 0 1rem;
  scroll-margin-top: 84px;
}

.philosophy-card {
  display: grid;
  grid-template-columns: 160px 1fr;
  gap: 2rem;
  align-items: center;
  background: var(--navy);
  color: var(--white);
  padding: 2rem 2.25rem;
  border-radius: 1.25rem;
  box-shadow: 0 12px 28px rgba(15, 44, 76, 0.16);
}

.philosophy-icon-col {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.6rem;
}

.philosophy-icon {
  width: 128px;
  height: 128px;
  background: var(--white);
  border-radius: 50%;
  padding: 4px;
}

.philosophy-content-col h2 {
  margin: 0 0 0.6rem;
  font-size: 1.55rem;
  color: #FEF08A;
}

.philosophy-highlight {
  font-size: 1.08rem;
  font-weight: 700;
  color: #E0F2FE;
  margin: 0 0 0.75rem;
}

.philosophy-body p {
  margin: 0 0 0.75rem;
  color: #F1F5F9;
}

.philosophy-card .step-review-bar {
  border-top-color: rgba(255, 255, 255, 0.18);
  color: #CBD5E1;
}

.philosophy-card code {
  background: rgba(255, 255, 255, 0.12);
  color: #BAE6FD;
}

/* Wave Dividers */
.wave-divider {
  width: 100%;
  overflow: hidden;
  padding: 0.5rem 0;
}

.wave-divider svg {
  width: 100%;
  height: 40px;
  display: block;
}

/* Phase Sections */
.phase-section {
  padding: 2rem 0 2.5rem;
  scroll-margin-top: 76px;
}

.phase-header {
  margin-bottom: 1.75rem;
}

.phase-tag {
  display: inline-block;
  font-size: 0.8rem;
  font-weight: 800;
  padding: 0.25rem 0.75rem;
  border-radius: 999px;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  margin-bottom: 0.5rem;
}

.tag-leren { background: var(--leren-border); color: var(--leren-dark); }
.tag-plannen { background: var(--plannen-border); color: var(--plannen-dark); }
.tag-doen { background: var(--doen-border); color: var(--doen-dark); }

.phase-header h2 {
  font-size: 1.75rem;
  color: var(--navy);
  margin: 0 0 0.35rem;
}

.phase-header p {
  margin: 0;
  color: var(--slate-muted);
  font-size: 1.05rem;
}

/* Step Cards */
.steps-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1.5rem;
}

.step-card {
  background: var(--white);
  border-radius: 1rem;
  padding: 1.65rem;
  border: 2px solid var(--border-subtle);
  box-shadow: 0 4px 14px rgba(15, 44, 76, 0.05);
  display: flex;
  flex-direction: column;
  scroll-margin-top: 90px;
  transition: box-shadow 0.2s ease, border-color 0.2s ease;
}

.step-card:target {
  box-shadow: 0 0 0 4px rgba(2, 132, 199, 0.35), 0 10px 25px rgba(15, 44, 76, 0.14);
}

.phase-leren { border-top: 6px solid var(--leren-main); }
.phase-plannen { border-top: 6px solid var(--plannen-main); }
.phase-doen { border-top: 6px solid var(--doen-main); }

.step-card-header {
  display: flex;
  align-items: center;
  gap: 1.15rem;
  margin-bottom: 1.1rem;
}

.step-icon-wrap {
  display: flex;
  flex-direction: column;
  align-items: center;
  flex-shrink: 0;
}

.step-icon {
  width: 96px;
  height: 96px;
  display: block;
}

.step-badge {
  margin-top: -8px;
  background: var(--navy);
  color: var(--white);
  font-size: 0.75rem;
  font-weight: 800;
  padding: 0.15rem 0.6rem;
  border-radius: 999px;
  border: 2px solid var(--white);
}

.step-badge-leren,
.step-badge-leer,
.phase-leren .step-badge {
  background: var(--leren-main);
  color: var(--white);
}

.step-badge-plannen,
.step-badge-plan,
.phase-plannen .step-badge {
  background: var(--plannen-main);
  color: var(--white);
}

.step-badge-doen,
.step-badge-doe,
.phase-doen .step-badge {
  background: var(--doen-main);
  color: var(--white);
}

.step-badge-kompas {
  background: var(--navy);
  color: var(--white);
}

.step-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 0.45rem;
  margin-bottom: 0.35rem;
}

.step-phase-pill,
.step-keyword-pill {
  font-size: 0.78rem;
  font-weight: 700;
  padding: 0.15rem 0.55rem;
  border-radius: 0.35rem;
  background: #F1F5F9;
  color: var(--slate-muted);
}

.phase-leren .step-phase-pill {
  background: var(--leren-border);
  color: var(--leren-dark);
}

.phase-plannen .step-phase-pill {
  background: var(--plannen-border);
  color: var(--plannen-dark);
}

.phase-doen .step-phase-pill {
  background: var(--doen-border);
  color: var(--doen-dark);
}

.step-title {
  margin: 0;
  font-size: 1.3rem;
  line-height: 1.28;
  color: var(--navy);
}

/* Nautical Depth-Chart Vuistregel Box */
.vuistregel-box {
  background: #F8FAFC;
  border: 1.5px dashed #94A3B8;
  border-left: 5px solid var(--navy);
  border-radius: 0.6rem;
  padding: 0.75rem 1rem 0.85rem;
  margin-bottom: 1rem;
}

.phase-leren .vuistregel-box { border-left-color: var(--leren-main); background: var(--leren-bg); }
.phase-plannen .vuistregel-box { border-left-color: var(--plannen-main); background: var(--plannen-bg); }
.phase-doen .vuistregel-box { border-left-color: var(--doen-main); background: var(--doen-bg); }

.vuistregel-contour {
  font-family: monospace, system-ui;
  font-size: 0.72rem;
  font-weight: 800;
  color: var(--slate-muted);
  letter-spacing: 0.06em;
  margin-bottom: 0.25rem;
}

.vuistregel-text {
  margin: 0;
  font-weight: 700;
  color: var(--navy);
  font-size: 0.98rem;
}

.step-body {
  flex: 1;
  font-size: 0.96rem;
}

.step-body p {
  margin: 0 0 0.75rem;
}

.step-body ul {
  margin: 0 0 0.75rem;
  padding-left: 1.25rem;
}

.step-body li {
  margin-bottom: 0.45rem;
}

/* Interactive Camion Widget (L4) */
.camion-widget {
  background: #F0F9FF;
  border: 2px solid #BAE6FD;
  border-radius: 0.75rem;
  padding: 1rem;
  margin: 0.5rem 0 1rem;
}

.camion-header {
  display: flex;
  flex-direction: column;
  font-size: 0.88rem;
  margin-bottom: 0.75rem;
  color: var(--navy);
}

.camion-controls {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.85rem;
  margin-bottom: 0.85rem;
}

.camion-controls label {
  display: flex;
  flex-direction: column;
  font-size: 0.82rem;
  gap: 0.3rem;
}

.camion-track {
  position: relative;
  height: 54px;
  background: linear-gradient(180deg, #FEF3C7 0%, #FEF3C7 34%, #38BDF8 35%, #0284C7 100%);
  border-radius: 0.5rem;
  border: 1.5px solid var(--navy);
  overflow: hidden;
  margin-bottom: 0.65rem;
}

.camion-landmark {
  position: absolute;
  left: 50%;
  top: 2px;
  transform: translateX(-50%);
  background: #DC2626;
  color: var(--white);
  font-size: 0.68rem;
  font-weight: 800;
  padding: 1px 6px;
  border-radius: 3px;
}

.camion-landmark::after {
  content: "";
  position: absolute;
  left: 50%;
  top: 16px;
  height: 38px;
  border-left: 2px dashed rgba(15, 44, 76, 0.65);
}

.camion-swimmer {
  position: absolute;
  top: 22px;
  left: 50%;
  transform: translateX(-50%);
  background: var(--white);
  color: var(--navy);
  font-size: 0.76rem;
  font-weight: 800;
  padding: 2px 8px;
  border-radius: 999px;
  border: 2px solid var(--navy);
  white-space: nowrap;
  transition: left 0.25s ease;
}

.camion-result {
  margin: 0;
  font-size: 0.85rem;
  padding: 0.45rem 0.65rem;
  border-radius: 0.4rem;
}

.result-danger { background: #FFE4E6; color: #9F1239; }
.result-warn { background: #FEF3C7; color: #92400E; }
.result-ok { background: #DCFCE7; color: #166534; }

/* Review bar at bottom of each step card */
.step-review-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.5rem;
  flex-wrap: wrap;
  margin-top: 0.85rem;
  padding-top: 0.65rem;
  border-top: 1px solid var(--border-subtle);
  font-size: 0.76rem;
  color: var(--slate-muted);
}

.step-review-bar code {
  font-size: 0.74rem;
  background: #F1F5F9;
  padding: 0.1rem 0.35rem;
  border-radius: 0.25rem;
}

.back-to-wheel {
  color: var(--plannen-dark);
  text-decoration: none;
  font-weight: 700;
}

.back-to-wheel:hover {
  text-decoration: underline;
}

/* Strandposten Section */
.strandposten-section {
  padding: 1.5rem 0 3.5rem;
}

.strandposten-card {
  background: linear-gradient(135deg, #0F2C4C 0%, #1E3A5F 100%);
  color: var(--white);
  padding: 2.25rem;
  border-radius: 1.25rem;
}

.strandposten-card h2 {
  margin: 0.25rem 0 0.75rem;
  color: var(--white);
}

.strandposten-card p {
  color: #E2E8F0;
  max-width: 780px;
  margin-bottom: 1.5rem;
}

.strandpaal-badges {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 1rem;
}

.strandpaal-badge {
  background: #FEF3C7;
  color: var(--navy);
  border: 3px solid #D97706;
  border-radius: 0.6rem;
  padding: 0.75rem 1rem;
  display: flex;
  flex-direction: column;
  gap: 0.3rem;
  box-shadow: 0 4px 10px rgba(0, 0, 0, 0.2);
}

.paal-name {
  font-weight: 900;
  font-size: 0.9rem;
  letter-spacing: 0.04em;
}

.paal-status {
  font-size: 0.82rem;
  font-weight: 700;
  padding: 0.2rem 0.5rem;
  border-radius: 0.3rem;
}

.status-calm { background: #DCFCE7; color: #166534; }
.status-mod { background: #FEF08A; color: #854D0E; }
.status-strong { background: #FFE4E6; color: #9F1239; }

/* Footer */
.site-footer {
  background: var(--navy);
  color: #CBD5E1;
  padding: 2rem 0;
  font-size: 0.9rem;
}

.footer-inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 1rem;
}

.site-footer a {
  color: #38BDF8;
  text-decoration: none;
}

.footer-note {
  margin: 0.3rem 0 0;
  font-size: 0.82rem;
  color: #94A3B8;
}

@media (max-width: 960px) {
  .hero-grid {
    grid-template-columns: 1fr;
  }
  .steps-grid {
    grid-template-columns: 1fr;
  }
  .philosophy-card {
    grid-template-columns: 1fr;
    text-align: center;
  }
  .camion-controls {
    grid-template-columns: 1fr;
  }
}