/* Bitcoin Pensioen — Standalone Stylesheet */

:root {
  --bg: #FAFAF7;
  --bg-warm: #F5F3EE;
  --card: #FFFFFF;
  --text: #1C1917;
  --text-secondary: #57534E;
  --muted: #A8A29E;
  --accent: #E8740C;
  --accent-hover: #D16A0B;
  --accent-soft: rgba(232, 116, 12, 0.08);
  --accent-softer: rgba(232, 116, 12, 0.04);
  --green: #15803D;
  --green-soft: rgba(21, 128, 61, 0.08);
  --green-text: #166534;
  --red: #B91C1C;
  --red-soft: rgba(185, 28, 28, 0.06);
  --storm: #B45309;
  --storm-border: #FDE68A;
  --border: #E7E5E4;
  --shadow-sm: 0 1px 2px rgba(0,0,0,0.04);
  --shadow-md: 0 4px 12px rgba(0,0,0,0.06);
  --radius: 16px;
  --radius-sm: 10px;
}

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

body {
  font-family: 'DM Sans', system-ui, -apple-system, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
  min-height: 100vh;
  -webkit-font-smoothing: antialiased;
}

/* === NAV === */
nav {
  position: sticky;
  top: 0;
  z-index: 100;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 32px;
  background: rgba(250, 250, 247, 0.88);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border);
}
.logo {
  display: flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
  color: var(--text);
}
.logo-mark {
  width: 32px; height: 32px;
  background: var(--accent);
  border-radius: 8px;
  display: flex; align-items: center; justify-content: center;
  color: white; font-weight: 700; font-size: 16px;
}
.logo-text {
  font-family: 'Source Serif 4', Georgia, serif;
  font-weight: 700; font-size: 17px;
  letter-spacing: -0.02em;
}
.nav-right {
  display: flex; align-items: center; gap: 16px;
  font-size: 13px; color: var(--muted);
}
.btc-price {
  display: flex; align-items: center; gap: 6px;
  font-family: 'JetBrains Mono', monospace;
  font-size: 12px; color: var(--text-secondary);
  background: var(--bg-warm);
  padding: 5px 12px; border-radius: 100px;
  border: 1px solid var(--border);
}
.btc-price .dot {
  width: 6px; height: 6px;
  background: var(--green); border-radius: 50%;
  animation: pulse 2s infinite;
}
@keyframes pulse {
  0%, 100% { opacity: 1; } 50% { opacity: 0.4; }
}

/* === LAYOUT === */
.page { max-width: 1120px; margin: 0 auto; padding: 0 24px; }

/* === HERO === */
.hero {
  text-align: center;
  padding: 52px 0 36px;
}
.hero h1 {
  font-family: 'Source Serif 4', Georgia, serif;
  font-size: 42px; font-weight: 700;
  letter-spacing: -0.03em; line-height: 1.15;
  margin-bottom: 10px;
}
.hero h1 em { font-style: normal; color: var(--accent); }
.hero p {
  font-size: 17px; color: var(--text-secondary);
  max-width: 440px; margin: 0 auto;
}
.disclaimer {
  display: inline-block; font-size: 11px; color: var(--muted);
  background: var(--bg-warm); border: 1px solid var(--border);
  padding: 3px 12px; border-radius: 100px; margin-top: 14px;
}

/* === MAIN GRID === */
.main-grid {
  display: grid;
  grid-template-columns: 360px 1fr;
  gap: 28px;
  align-items: start;
  margin-bottom: 48px;
}

/* === INPUT PANEL === */
.input-panel { position: sticky; top: 72px; }
.input-card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 28px;
  box-shadow: var(--shadow-md);
}
.input-card-title {
  font-size: 13px; font-weight: 600;
  text-transform: uppercase; letter-spacing: 0.06em;
  color: var(--muted); margin-bottom: 22px;
}

/* Number inputs */
.field-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
  margin-bottom: 16px;
}
.field-label {
  font-size: 12px; font-weight: 600;
  color: var(--text-secondary);
  margin-bottom: 6px;
}
.field-input {
  width: 100%;
  padding: 10px 14px;
  border: 1px solid var(--border);
  border-radius: 8px;
  font-family: 'JetBrains Mono', monospace;
  font-size: 15px; font-weight: 500;
  color: var(--text);
  background: var(--bg);
  outline: none;
  transition: border-color 0.15s;
}
.field-input:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(232, 116, 12, 0.08);
}
.field-input::placeholder { color: var(--muted); }
.field-suffix {
  font-size: 11px; color: var(--muted); margin-top: 3px;
}

/* Big slider */
.big-slider-group {
  margin-bottom: 16px;
}
.big-slider-label {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  margin-bottom: 10px;
}
.big-slider-label-text {
  font-size: 13px; font-weight: 600;
  color: var(--text);
}
.big-slider-label-value {
  font-family: 'JetBrains Mono', monospace;
  font-size: 16px; font-weight: 600;
  color: var(--accent);
}
.big-slider-context {
  font-size: 11px; color: var(--muted);
  margin-bottom: 8px;
}
input[type="range"] {
  width: 100%;
  -webkit-appearance: none;
  height: 6px;
  background: var(--border);
  border-radius: 100px;
  outline: none;
  cursor: pointer;
}
input[type="range"]::-webkit-slider-thumb {
  -webkit-appearance: none;
  width: 24px; height: 24px;
  border-radius: 50%;
  background: var(--accent);
  cursor: grab;
  box-shadow: 0 1px 4px rgba(232, 116, 12, 0.3), 0 0 0 3px rgba(232, 116, 12, 0.08);
  transition: box-shadow 0.15s;
}
input[type="range"]::-webkit-slider-thumb:hover {
  box-shadow: 0 2px 8px rgba(232, 116, 12, 0.4), 0 0 0 5px rgba(232, 116, 12, 0.1);
}
input[type="range"]::-webkit-slider-thumb:active { cursor: grabbing; }
input[type="range"]::-moz-range-thumb {
  width: 24px; height: 24px; border-radius: 50%;
  background: var(--accent); border: none; cursor: grab;
}

/* Fine-tune slider */
.fine-tune {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-top: 6px;
}
.fine-tune-label {
  font-size: 11px; color: var(--muted); white-space: nowrap;
}
.fine-tune input[type="range"] { height: 3px; flex: 1; }
.fine-tune input[type="range"]::-webkit-slider-thumb {
  width: 14px; height: 14px;
  box-shadow: 0 1px 3px rgba(0,0,0,0.15);
  background: var(--text-secondary);
}
.fine-tune-val {
  font-family: 'JetBrains Mono', monospace;
  font-size: 11px; color: var(--text-secondary);
  min-width: 28px; text-align: right;
}

/* Trend indicator */
.trend-indicator {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 11px;
  color: var(--text-secondary);
  background: rgba(21, 128, 61, 0.05);
  border: 1px solid rgba(21, 128, 61, 0.12);
  border-radius: 6px;
  padding: 6px 10px;
  margin-top: 8px;
  margin-bottom: 4px;
  line-height: 1.4;
}
.trend-indicator strong { color: var(--green-text); }
.trend-indicator.over {
  background: rgba(185, 28, 28, 0.04);
  border-color: rgba(185, 28, 28, 0.1);
}
.trend-indicator.over strong { color: var(--red); }
.trend-dot {
  width: 6px; height: 6px;
  border-radius: 50%;
  flex-shrink: 0;
}
.trend-dot.under { background: var(--green); }
.trend-dot.over { background: var(--red); }
.trend-dot.neutral { background: var(--muted); }

.divider { height: 1px; background: var(--border); margin: 20px 0; }

/* More options */
.more-options-btn {
  display: flex; align-items: center; gap: 6px;
  font-size: 12px; color: var(--muted);
  background: none; border: none; cursor: pointer;
  font-family: inherit; font-weight: 500;
  padding: 4px 0; transition: color 0.2s;
}
.more-options-btn:hover { color: var(--text-secondary); }
.more-options-btn svg { transition: transform 0.2s; }
.more-options-btn.open svg { transform: rotate(180deg); }
.extra-options { display: none; }
.extra-options.visible { display: block; }

/* Toggle row */
.toggle-row {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  margin-top: 14px;
  padding-top: 12px;
  border-top: 1px solid var(--border);
}
.toggle-switch {
  position: relative;
  flex-shrink: 0;
  margin-top: 1px;
}
.toggle-switch input { display: none; }
.toggle-track {
  display: block;
  width: 36px;
  height: 20px;
  background: var(--muted);
  border-radius: 10px;
  cursor: pointer;
  transition: background 0.2s;
  position: relative;
}
.toggle-thumb {
  position: absolute;
  top: 2px;
  left: 2px;
  width: 16px;
  height: 16px;
  background: #fff;
  border-radius: 50%;
  transition: transform 0.2s;
  box-shadow: 0 1px 2px rgba(0,0,0,0.15);
}
.toggle-switch input:checked + .toggle-track {
  background: var(--accent);
}
.toggle-switch input:checked + .toggle-track .toggle-thumb {
  transform: translateX(16px);
}

/* === VERDICT === */
.verdict {
  background: var(--accent-softer);
  border: 1px solid rgba(232, 116, 12, 0.12);
  border-radius: var(--radius-sm);
  padding: 20px;
  text-align: center;
  margin-top: 20px;
  transition: all 0.3s ease;
}
.verdict-badge {
  display: inline-flex; align-items: center; gap: 5px;
  font-size: 11px; font-weight: 600;
  text-transform: uppercase; letter-spacing: 0.08em;
  padding: 3px 10px; border-radius: 100px;
  margin-bottom: 8px;
}
.verdict-badge.good { background: var(--green-soft); color: var(--green-text); }
.verdict-badge.close { background: var(--accent-soft); color: var(--accent); }
.verdict-badge.risk { background: var(--red-soft); color: var(--red); }
.verdict-badge .dot {
  width: 5px; height: 5px; border-radius: 50%; background: currentColor;
}
.verdict h2 {
  font-family: 'Source Serif 4', Georgia, serif;
  font-size: 26px; font-weight: 700;
  letter-spacing: -0.02em; margin-bottom: 2px;
}
.verdict-sub {
  font-size: 13px; color: var(--text-secondary); margin-bottom: 10px;
}
.verdict-comparison {
  display: inline-flex; align-items: center; gap: 8px; font-size: 12px;
}
.comp-saved {
  font-weight: 700; color: var(--green-text);
  background: var(--green-soft);
  padding: 2px 10px; border-radius: 100px;
}
.comp-trad { color: var(--muted); }
.verdict-surplus {
  font-family: 'JetBrains Mono', monospace;
  font-size: 12px;
  margin-top: 8px;
}
.surplus-positive { color: var(--green-text); }
.surplus-negative { color: var(--red); }

/* === RESULTS PANEL === */
.results-panel {
  display: flex; flex-direction: column; gap: 20px;
}
.result-card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 24px 28px;
  box-shadow: var(--shadow-sm);
  transition: border-color 0.2s, box-shadow 0.2s;
  animation: fadeUp 0.4s ease both;
}
.result-card:hover { border-color: #D6D3D1; box-shadow: var(--shadow-md); }
.result-card:nth-child(1) { animation-delay: 0.05s; }
.result-card:nth-child(2) { animation-delay: 0.12s; }
.result-card:nth-child(3) { animation-delay: 0.19s; }
@keyframes fadeUp {
  from { opacity: 0; transform: translateY(12px); }
  to { opacity: 1; transform: translateY(0); }
}

.card-header {
  display: flex; justify-content: space-between;
  align-items: center; margin-bottom: 16px;
}
.card-title { font-size: 14px; font-weight: 600; }

/* === STORM & FOREVER === */
.sf-row {
  display: flex; gap: 0;
  border-radius: var(--radius-sm);
  overflow: hidden; border: 1px solid var(--border);
}
.sf-storm {
  flex: 0 0 40%;
  background: linear-gradient(135deg, #FFFBEB, #FEF3C7);
  border-right: 1px solid var(--storm-border);
  padding: 20px;
}
.sf-forever {
  flex: 1;
  background: linear-gradient(135deg, #F0FDF4, #DCFCE7);
  padding: 20px;
}
.phase-label {
  font-size: 10px; font-weight: 700;
  text-transform: uppercase; letter-spacing: 0.1em;
  margin-bottom: 8px;
  display: flex; align-items: center; gap: 5px;
}
.sf-storm .phase-label { color: var(--storm); }
.sf-forever .phase-label { color: var(--green); }
.phase-amount {
  font-family: 'Source Serif 4', Georgia, serif;
  font-size: 28px; font-weight: 700;
  letter-spacing: -0.02em;
}
.phase-detail {
  font-size: 12px; color: var(--text-secondary); margin-top: 2px;
}

/* === PERIOD BARS === */
.period-bars-legend {
  display: flex; gap: 14px; font-size: 11px; color: var(--muted);
}
.legend-dot {
  display: inline-block; width: 8px; height: 8px;
  border-radius: 2px; margin-right: 4px; vertical-align: middle;
}
.period-bars {
  display: flex; align-items: flex-end;
  gap: 8px; height: 160px; margin-bottom: 6px;
}
.period-bar-group {
  flex: 1; display: flex; flex-direction: column;
  align-items: center; height: 100%;
}
.period-bar-track {
  flex: 1; width: 100%;
  display: flex; flex-direction: column; justify-content: flex-end;
  border-radius: 4px 4px 0 0; overflow: hidden;
}
.period-bar-fill {
  width: 100%; border-radius: 4px 4px 0 0;
  transition: height 0.5s cubic-bezier(0.22, 1, 0.36, 1);
  min-height: 2px;
}
.storm-fill { background: linear-gradient(180deg, #F59E0B, #D97706); }
.forever-fill { background: linear-gradient(180deg, #22C55E, #16A34A); }
.period-bar-value {
  font-family: 'JetBrains Mono', monospace;
  font-size: 10px; font-weight: 500;
  color: var(--text-secondary); margin-top: 6px;
}
.period-bar-label {
  font-size: 10px; color: var(--muted); margin-top: 2px;
}
.period-insight {
  display: flex; align-items: flex-start; gap: 10px;
  background: var(--accent-softer);
  border: 1px solid rgba(232, 116, 12, 0.08);
  border-radius: var(--radius-sm);
  padding: 14px 16px; margin-top: 16px;
  font-size: 13px; color: var(--text-secondary); line-height: 1.5;
}
.period-insight strong { color: var(--text); }

/* === CTA === */
.cta-card {
  background: var(--card);
  border: 2px solid var(--accent);
  border-radius: var(--radius);
  padding: 36px; text-align: center;
  box-shadow: 0 4px 20px rgba(232, 116, 12, 0.08);
}
.cta-card h3 {
  font-family: 'Source Serif 4', Georgia, serif;
  font-size: 22px; font-weight: 700;
  letter-spacing: -0.02em; margin-bottom: 8px;
}
.cta-card p {
  font-size: 14px; color: var(--text-secondary);
  max-width: 420px; margin: 0 auto 24px; line-height: 1.55;
}
.cta-btn {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 14px 32px; background: var(--accent);
  color: white; border: none; border-radius: 100px;
  font-size: 15px; font-weight: 600; cursor: pointer;
  font-family: inherit; transition: all 0.2s; text-decoration: none;
}
.cta-btn:hover {
  background: var(--accent-hover);
  transform: translateY(-1px);
  box-shadow: 0 4px 16px rgba(232, 116, 12, 0.25);
}
.cta-details {
  display: flex; justify-content: center; gap: 24px;
  margin-top: 16px; font-size: 12px; color: var(--muted);
}
.cta-details span { display: flex; align-items: center; gap: 4px; }

/* === FOOTER === */
footer {
  padding: 32px 24px; text-align: center;
  font-size: 11px; color: var(--muted); line-height: 1.8;
  border-top: 1px solid var(--border); margin-top: 48px;
}
.footnote {
  max-width: 520px;
  margin: 0 auto 12px;
  font-size: 12px;
  color: var(--text-secondary);
  line-height: 1.6;
  text-align: center;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--border);
}
.footnote strong { color: var(--text); }

/* === RESPONSIVE === */
@media (max-width: 840px) {
  .main-grid { grid-template-columns: 1fr; }
  .input-panel { position: static; }
  .hero h1 { font-size: 32px; }
  nav { padding: 12px 16px; }
  .page { padding: 0 16px; }
  .sf-row { flex-direction: column; }
  .sf-storm { border-right: none; border-bottom: 1px solid var(--storm-border); }
  .field-row { grid-template-columns: 1fr; }
}