/* ===== CSS Reset & Base ===== */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  --c-bg: #0f1117;
  --c-surface: #1a1d27;
  --c-surface-2: #222633;
  --c-border: #2e3340;
  --c-text: #e4e6ed;
  --c-text-muted: #8b8fa3;
  --c-accent: #6c8cff;
  --c-accent-light: #8da6ff;
  --c-accent-bg: rgba(108, 140, 255, 0.1);
  --c-green: #4ade80;
  --c-green-bg: rgba(74, 222, 128, 0.1);
  --c-yellow: #fbbf24;
  --c-yellow-bg: rgba(251, 191, 36, 0.1);
  --c-red: #f87171;
  --c-red-bg: rgba(248, 113, 113, 0.1);
  --radius: 12px;
  --radius-sm: 8px;
  --shadow: 0 4px 24px rgba(0,0,0,0.3);
  --font: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --transition: 0.2s ease;
}

html { scroll-behavior: smooth; font-size: 16px; }
body {
  font-family: var(--font);
  background: var(--c-bg);
  color: var(--c-text);
  line-height: 1.6;
  min-height: 100vh;
}

a { color: var(--c-accent-light); text-decoration: none; transition: color var(--transition); }
a:hover, a:focus-visible { color: var(--c-accent); text-decoration: underline; }

img, svg { display: block; max-width: 100%; }

.container { width: 100%; max-width: 1200px; margin: 0 auto; padding: 0 20px; }

.skip-link {
  position: absolute; top: -100%; left: 16px; z-index: 9999;
  background: var(--c-accent); color: #000; padding: 8px 16px;
  border-radius: var(--radius-sm); font-weight: 600;
}
.skip-link:focus { top: 16px; }

/* ===== Header ===== */
.site-header {
  position: sticky; top: 0; z-index: 100;
  background: rgba(15, 17, 23, 0.92);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--c-border);
}
.header-inner {
  display: flex; align-items: center; justify-content: space-between;
  height: 60px; padding: 0 20px;
}
.logo {
  display: flex; align-items: center; gap: 10px;
  color: var(--c-text); text-decoration: none; font-weight: 700; font-size: 1.15rem;
}
.logo:hover, .logo:focus-visible { text-decoration: none; color: var(--c-text); }
.logo-icon { color: var(--c-accent); }
.logo-accent { color: var(--c-accent); }

.main-nav ul { display: flex; list-style: none; gap: 24px; }
.main-nav a {
  color: var(--c-text-muted); font-size: 0.9rem; font-weight: 500;
  padding: 4px 0; border-bottom: 2px solid transparent;
}
.main-nav a:hover, .main-nav a:focus-visible {
  color: var(--c-text); border-bottom-color: var(--c-accent); text-decoration: none;
}

.nav-toggle {
  display: none; flex-direction: column; gap: 5px;
  background: none; border: none; cursor: pointer; padding: 4px;
}
.nav-toggle span { display: block; width: 22px; height: 2px; background: var(--c-text); border-radius: 2px; }

.mobile-nav {
  background: var(--c-surface); border-bottom: 1px solid var(--c-border);
}
.mobile-nav ul { list-style: none; padding: 12px 20px; }
.mobile-nav li { padding: 8px 0; }
.mobile-nav a { color: var(--c-text-muted); font-weight: 500; }
.mobile-nav a:hover { color: var(--c-text); }

/* ===== Buttons ===== */
.btn {
  display: inline-flex; align-items: center; justify-content: center;
  gap: 8px; padding: 10px 20px; border-radius: var(--radius-sm);
  font-family: var(--font); font-size: 0.9rem; font-weight: 600;
  border: 2px solid transparent; cursor: pointer;
  transition: all var(--transition); text-decoration: none; line-height: 1.4;
}
.btn:hover, .btn:focus-visible { text-decoration: none; }
.btn-primary { background: var(--c-accent); color: #000; }
.btn-primary:hover, .btn-primary:focus-visible { background: var(--c-accent-light); }
.btn-secondary { background: var(--c-surface-2); color: var(--c-text); border-color: var(--c-border); }
.btn-secondary:hover, .btn-secondary:focus-visible { background: var(--c-border); }
.btn-ghost { background: transparent; color: var(--c-text-muted); border-color: var(--c-border); }
.btn-ghost:hover, .btn-ghost:focus-visible { color: var(--c-text); border-color: var(--c-text-muted); }
.btn-sm { padding: 6px 14px; font-size: 0.82rem; }
.btn-lg { padding: 14px 28px; font-size: 1rem; }
.btn-icon {
  background: none; border: none; color: var(--c-text-muted);
  font-size: 1.3rem; cursor: pointer; padding: 4px; line-height: 1;
  border-radius: 4px; transition: all var(--transition);
}
.btn-icon:hover, .btn-icon:focus-visible { color: var(--c-red); background: var(--c-red-bg); }

/* ===== Hero ===== */
.hero {
  padding: 80px 0 60px;
  background: linear-gradient(180deg, var(--c-surface) 0%, var(--c-bg) 100%);
}
.hero-content { max-width: 640px; }
.hero h1 {
  font-size: clamp(2rem, 5vw, 2.8rem);
  font-weight: 800; line-height: 1.15; margin-bottom: 16px;
  letter-spacing: -0.02em;
}
.hero-sub {
  font-size: 1.1rem; color: var(--c-text-muted);
  margin-bottom: 28px; max-width: 520px;
}
.hero-actions { display: flex; gap: 12px; flex-wrap: wrap; margin-bottom: 16px; }
.hero-note { font-size: 0.82rem; color: var(--c-text-muted); }

/* ===== Section Styles ===== */
section { padding: 60px 0; }
section:nth-child(even) { background: var(--c-surface); }
.section-desc {
  color: var(--c-text-muted); margin-bottom: 32px; max-width: 600px;
  font-size: 0.95rem;
}
h2 { font-size: 1.6rem; font-weight: 700; margin-bottom: 8px; letter-spacing: -0.01em; }

/* ===== Planner Layout ===== */
.planner-layout {
  display: grid; grid-template-columns: 1fr 320px; gap: 32px; align-items: start;
}
.planner-sidebar {
  position: sticky; top: 80px;
  display: flex; flex-direction: column; gap: 20px;
}

/* ===== Goal Cards ===== */
.goals-list { display: flex; flex-direction: column; gap: 16px; margin-bottom: 20px; }
.goal-card {
  background: var(--c-surface); border: 1px solid var(--c-border);
  border-radius: var(--radius); padding: 20px;
}
.goal-card-header {
  display: flex; align-items: center; justify-content: space-between;
  margin-bottom: 16px;
}
.goal-name-display { font-size: 1.05rem; font-weight: 600; }
.goal-fields {
  display: grid; grid-template-columns: 2fr 1fr 1fr 1fr 1fr; gap: 12px;
}
.field { display: flex; flex-direction: column; gap: 4px; }
.field label { font-size: 0.78rem; color: var(--c-text-muted); font-weight: 500; text-transform: uppercase; letter-spacing: 0.04em; }
.field input, .field select {
  background: var(--c-bg); border: 1px solid var(--c-border);
  color: var(--c-text); padding: 8px 10px; border-radius: var(--radius-sm);
  font-family: var(--font); font-size: 0.9rem;
  transition: border-color var(--transition);
}
.field input:focus, .field select:focus {
  outline: none; border-color: var(--c-accent);
  box-shadow: 0 0 0 3px var(--c-accent-bg);
}
.goal-result {
  display: flex; align-items: center; gap: 16px; margin-top: 16px;
  padding-top: 16px; border-top: 1px solid var(--c-border);
}
.goal-months {
  font-size: 1.2rem; font-weight: 700; color: var(--c-green);
}
.goal-date { font-size: 0.85rem; color: var(--c-text-muted); }

.add-goal-btn { margin-bottom: 28px; }

/* ===== Trade-off Panel ===== */
.tradeoff-panel {
  background: var(--c-surface); border: 1px solid var(--c-border);
  border-radius: var(--radius); padding: 20px;
}
.tradeoff-panel h3 { font-size: 1.05rem; margin-bottom: 4px; }
.tradeoff-panel > p { font-size: 0.85rem; color: var(--c-text-muted); margin-bottom: 16px; }
.tradeoff-controls { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; margin-bottom: 16px; }
.tradeoff-results { display: flex; flex-direction: column; gap: 8px; }
.tradeoff-row {
  display: flex; justify-content: space-between;
  font-size: 0.9rem; padding: 6px 0;
}
.tradeoff-diff { border-top: 1px solid var(--c-border); color: var(--c-accent-light); font-weight: 600; }

/* ===== Sidebar Summary ===== */
.summary-card {
  background: var(--c-surface); border: 1px solid var(--c-border);
  border-radius: var(--radius); padding: 20px;
}
.summary-card h2 { font-size: 1.05rem; margin-bottom: 12px; }
.summary-row {
  display: flex; justify-content: space-between; align-items: center;
  padding: 8px 0; font-size: 0.9rem; border-bottom: 1px solid var(--c-border);
}
.summary-row:last-child { border-bottom: none; }
.summary-highlight { color: var(--c-green); }
.summary-highlight strong { font-size: 1.1rem; }

.summary-actions {
  display: flex; flex-direction: column; gap: 8px;
}
.summary-actions .btn { width: 100%; }

/* ===== Timeline Viz ===== */
.timeline-viz {
  background: var(--c-surface); border: 1px solid var(--c-border);
  border-radius: var(--radius); padding: 20px;
}
.timeline-viz h3 { font-size: 0.95rem; margin-bottom: 12px; }
.timeline-bar-group { margin-bottom: 10px; }
.timeline-bar-label {
  display: flex; justify-content: space-between;
  font-size: 0.78rem; color: var(--c-text-muted); margin-bottom: 4px;
}
.timeline-bar-track {
  height: 8px; background: var(--c-bg); border-radius: 4px; overflow: hidden;
}
.timeline-bar-fill {
  height: 100%; border-radius: 4px; background: var(--c-accent);
  transition: width 0.4s ease;
}
.timeline-bar-fill.green { background: var(--c-green); }

/* ===== Presets ===== */
.preset-grid {
  display: grid; grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
  gap: 16px;
}
.preset-card {
  background: var(--c-surface); border: 1px solid var(--c-border);
  border-radius: var(--radius); padding: 20px; cursor: pointer;
  transition: all var(--transition);
}
.preset-card:hover, .preset-card:focus-visible {
  border-color: var(--c-accent); transform: translateY(-2px);
  box-shadow: var(--shadow); outline: none;
}
.preset-icon { font-size: 2rem; margin-bottom: 12px; }
.preset-card h3 { font-size: 1rem; margin-bottom: 6px; }
.preset-card p { font-size: 0.82rem; color: var(--c-text-muted); margin-bottom: 10px; }
.preset-price {
  font-size: 0.9rem; font-weight: 700; color: var(--c-accent);
}

/* ===== Comparison Table ===== */
.comparison-table-wrapper {
  overflow-x: auto; margin-bottom: 20px;
}
.comparison-table {
  width: 100%; border-collapse: collapse;
  font-size: 0.88rem;
}
.comparison-table th, .comparison-table td {
  padding: 12px 16px; text-align: left;
  border-bottom: 1px solid var(--c-border);
}
.comparison-table th {
  background: var(--c-surface-2); font-weight: 600;
  font-size: 0.82rem; text-transform: uppercase; letter-spacing: 0.04em;
  color: var(--c-text-muted);
}
.comparison-table th:first-child, .comparison-table td:first-child {
  font-weight: 600; color: var(--c-text); white-space: nowrap;
}
.comparison-table tbody tr:hover { background: var(--c-surface-2); }
.comparison-note {
  background: var(--c-yellow-bg); border: 1px solid rgba(251,191,36,0.2);
  border-radius: var(--radius-sm); padding: 16px;
}
.comparison-note p { font-size: 0.88rem; color: var(--c-yellow); }

/* ===== Scenario ===== */
.scenario-steps {
  display: flex; flex-direction: column; gap: 0;
  margin-bottom: 32px;
}
.scenario-step {
  display: flex; gap: 20px; padding: 24px 0;
  border-bottom: 1px solid var(--c-border);
}
.scenario-step:last-child { border-bottom: none; }
.step-num {
  flex-shrink: 0; width: 36px; height: 36px;
  background: var(--c-accent-bg); color: var(--c-accent);
  border-radius: 50%; display: flex; align-items: center; justify-content: center;
  font-weight: 700; font-size: 0.9rem;
}
.step-content h3 { font-size: 1rem; margin-bottom: 4px; }
.step-content p { font-size: 0.9rem; color: var(--c-text-muted); }
.scenario-takeaway {
  background: var(--c-green-bg); border: 1px solid rgba(74,222,128,0.2);
  border-radius: var(--radius); padding: 20px;
}
.scenario-takeaway h3 { font-size: 1rem; margin-bottom: 8px; color: var(--c-green); }
.scenario-takeaway p { font-size: 0.9rem; color: var(--c-text-muted); }

/* ===== Mistakes ===== */
.mistakes-grid {
  display: grid; grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 16px;
}
.mistake-card {
  background: var(--c-surface); border: 1px solid var(--c-border);
  border-radius: var(--radius); padding: 20px;
}
.mistake-card h3 {
  font-size: 0.95rem; margin-bottom: 8px; color: var(--c-yellow);
}
.mistake-card p { font-size: 0.88rem; color: var(--c-text-muted); }

/* ===== Tracker ===== */
.tracker-controls {
  display: flex; align-items: flex-end; gap: 12px; flex-wrap: wrap;
  margin-bottom: 24px;
}
.tracker-controls .field { min-width: 200px; }
.tracker-output {
  background: var(--c-surface); border: 1px solid var(--c-border);
  border-radius: var(--radius); padding: 24px;
}
.tracker-chart {
  display: flex; flex-direction: column; gap: 6px;
}
.tracker-month {
  display: flex; align-items: center; gap: 12px;
}
.tracker-month-label {
  width: 80px; font-size: 0.78rem; color: var(--c-text-muted);
  text-align: right; flex-shrink: 0;
}
.tracker-month-bar {
  height: 24px; background: var(--c-accent); border-radius: 4px;
  display: flex; align-items: center; justify-content: flex-end;
  padding-right: 8px; font-size: 0.72rem; font-weight: 600; color: #000;
  transition: width 0.3s ease; min-width: 30px;
}
.tracker-month-bar.complete { background: var(--c-green); }
.tracker-goal-line {
  border-top: 2px dashed var(--c-yellow); margin: 8px 0;
  padding-top: 8px; font-size: 0.82rem; color: var(--c-yellow);
}

/* ===== Footer ===== */
.site-footer {
  background: var(--c-surface); border-top: 1px solid var(--c-border);
  padding: 40px 0;
}
.footer-inner {
  display: grid; grid-template-columns: 1fr 1fr 1fr; gap: 32px;
}
.footer-brand p { font-size: 0.85rem; color: var(--c-text-muted); margin-top: 8px; }
.footer-links ul, .footer-legal ul { list-style: none; }
.footer-links li, .footer-legal li { margin-bottom: 6px; }
.footer-links a, .footer-legal a { font-size: 0.85rem; color: var(--c-text-muted); }
.footer-links a:hover, .footer-legal a:hover { color: var(--c-text); }
.footer-copy { font-size: 0.78rem; color: var(--c-text-muted); margin-top: 12px; }

/* ===== Print Styles ===== */
@media print {
  .site-header, .site-footer, .hero-actions, .hero-note,
  .summary-actions, .tracker-controls, .nav-toggle,
  .add-goal-btn, .goal-remove, .tradeoff-panel { display: none !important; }
  body { background: #fff; color: #000; }
  .goal-card, .summary-card, .timeline-viz, .tracker-output,
  .preset-card, .mistake-card, .tradeoff-panel {
    border: 1px solid #ccc; background: #fff; break-inside: avoid;
  }
  .goal-months, .summary-highlight strong { color: #16a34a; }
  .tracker-month-bar { background: #333; color: #fff; }
  .tracker-month-bar.complete { background: #16a34a; }
  section { padding: 20px 0; }
  .planner-layout { display: block; }
  .planner-sidebar { position: static; }
}

/* ===== Responsive ===== */
@media (max-width: 900px) {
  .planner-layout { grid-template-columns: 1fr; }
  .planner-sidebar { position: static; }
  .goal-fields { grid-template-columns: 1fr 1fr; }
  .footer-inner { grid-template-columns: 1fr; gap: 20px; }
}

@media (max-width: 640px) {
  .main-nav { display: none; }
  .nav-toggle { display: flex; }
  .hero { padding: 48px 0 36px; }
  .hero h1 { font-size: 1.7rem; }
  .goal-fields { grid-template-columns: 1fr; }
  .tradeoff-controls { grid-template-columns: 1fr; }
  .comparison-table { font-size: 0.8rem; }
  .comparison-table th, .comparison-table td { padding: 8px 10px; }
  .tracker-month-label { width: 60px; font-size: 0.7rem; }
}

/* ===== Focus Styles ===== */
*:focus-visible {
  outline: 2px solid var(--c-accent);
  outline-offset: 2px;
}

/* ===== Toast ===== */
.toast {
  position: fixed; bottom: 24px; right: 24px; z-index: 9999;
  background: var(--c-surface-2); border: 1px solid var(--c-border);
  color: var(--c-text); padding: 12px 20px; border-radius: var(--radius-sm);
  font-size: 0.88rem; box-shadow: var(--shadow);
  animation: toastIn 0.3s ease, toastOut 0.3s ease 2.7s forwards;
}
@keyframes toastIn { from { opacity: 0; transform: translateY(12px); } to { opacity: 1; transform: translateY(0); } }
@keyframes toastOut { from { opacity: 1; } to { opacity: 0; } }

/* ===== Empty State ===== */
.empty-state {
  text-align: center; padding: 40px 20px; color: var(--c-text-muted);
}
.empty-state p { font-size: 0.9rem; }



/* Factory-injected deployment helpers. The AI owns the site design above this block. */
.ad-unit {
  width: min(100%, 720px);
  min-height: 120px;
  margin: 24px auto;
  display: block;
}

.legal-page {
  width: min(900px, calc(100% - 32px));
  margin: 40px auto;
}

.factory-fallback-nav {
  width: min(900px, calc(100% - 32px));
  margin: 24px auto 0;
  display: flex;
  flex-wrap: wrap;
  gap: 10px 16px;
  align-items: center;
  font-size: 0.95rem;
}

.factory-fallback-nav a {
  color: inherit;
  text-decoration: none;
  border-bottom: 1px solid currentColor;
}