/* ================= hero: dusk sky over the canyon ================= */
.hero {
  position: relative;
  overflow: hidden;
  color: var(--on-dusk);
  background:
    radial-gradient(ellipse 60% 45% at 76% 70%, rgba(229, 154, 106, 0.55), transparent 70%),
    radial-gradient(ellipse 40% 30% at 15% 0%, rgba(120, 140, 220, 0.25), transparent 70%),
    linear-gradient(180deg, var(--dusk-1) 0%, var(--dusk-2) 58%, var(--dusk-3) 100%);
  padding-block: var(--space-7) var(--space-8);
}
.hero::after {
  content: "";
  position: absolute;
  inset: auto 0 0 0;
  height: 90px;
  background: linear-gradient(180deg, transparent, rgba(20, 33, 58, 0.35));
  pointer-events: none;
}
.hero-grid { position: relative; z-index: 1; display: grid; gap: var(--space-6); align-items: start; }
.hero .eyebrow { color: var(--on-dusk-2); }
.hero h1 { color: var(--on-dusk); font-size: var(--fs-h1); max-width: 14ch; }
.hero h1 em { font-style: normal; background: linear-gradient(90deg, var(--tier-1), var(--dusk-glow) 55%, var(--tier-3)); -webkit-background-clip: text; background-clip: text; color: transparent; }
.hero .lede { color: var(--on-dusk-2); }
.hero a { color: var(--on-dusk); }
@media (min-width: 1080px) {
  .hero { padding-block: var(--space-8) var(--space-9); }
  .hero-grid { grid-template-columns: minmax(0, 1fr) minmax(0, 1.08fr); gap: var(--space-7); }
  .hero-visual { position: sticky; top: 96px; }
}

/* ================= calculator card ================= */
.calculator {
  margin-top: var(--space-5);
  background: var(--paper);
  color: var(--ink);
  border-radius: var(--radius-card);
  padding: var(--space-5);
  box-shadow: var(--shadow-lift);
  display: grid;
  gap: var(--space-4);
}
.calculator .field-row { display: grid; gap: var(--space-4); }
@media (min-width: 560px) {
  .calculator .field-row { grid-template-columns: 1fr 1fr; }
}
.calculator fieldset { border: 0; padding: 0; margin: 0; min-width: 0; }
.calculator[aria-busy="true"] { opacity: 0.75; }
.calc-status { margin: 0; font-size: var(--fs-small); color: var(--ink-2); }
.privacy-note { display: flex; gap: var(--space-2); align-items: center; margin: 0; font-size: var(--fs-small); color: var(--ink-2); }
.privacy-note::before { content: ""; flex: none; width: 10px; height: 10px; border-radius: 50%; background: var(--safe); box-shadow: 0 0 0 4px rgba(35, 112, 76, 0.18); }

/* ================= the 3D canyon ================= */
.canyon {
  --w: 52px;
  --d: 96px;
  position: relative;
  height: 360px;
  perspective: 1500px;
  perspective-origin: 50% 20%;
}
@media (min-width: 560px) { .canyon { --w: 82px; --d: 140px; height: 420px; } }
@media (min-width: 1080px) { .canyon { --w: 86px; --d: 150px; height: 470px; } }
.canyon-plane {
  position: absolute;
  left: 50%;
  top: 64%;
  width: calc(var(--count, 6) * var(--w));
  height: var(--d);
  margin-left: calc(var(--count, 6) * var(--w) / -2);
  margin-top: calc(var(--d) / -2);
  transform-style: preserve-3d;
  transform: rotateX(58deg) rotateZ(-32deg);
  animation: canyon-rise var(--motion-slow) var(--ease-out) both;
}
@keyframes canyon-rise {
  from { transform: rotateX(70deg) rotateZ(-14deg) scale(0.92); }
  to { transform: rotateX(58deg) rotateZ(-32deg); }
}
.canyon-plane::before {
  content: "";
  position: absolute;
  inset: -46px -70px;
  border-radius: 28px;
  background:
    repeating-radial-gradient(ellipse at 30% 60%, transparent 0 16px, rgba(244, 241, 255, 0.09) 16px 17.5px),
    rgba(20, 33, 58, 0.35);
  transform: translateZ(-1px);
}
.mesa { position: absolute; top: 0; left: calc(var(--i) * var(--w)); width: var(--w); height: var(--d); transform-style: preserve-3d; }
.mesa[hidden] { display: none; }
.mesa .face { position: absolute; }
.mesa .top {
  inset: 0;
  transform: translateZ(var(--h, 40px));
  background: color-mix(in oklab, var(--c) 78%, white);
  box-shadow: inset 0 0 0 1px rgba(255, 255, 255, 0.25);
  transition: transform var(--motion-slow) var(--ease-out), box-shadow 300ms ease;
}
.mesa .front {
  left: 0;
  width: 100%;
  bottom: 0;
  height: var(--h, 40px);
  transform-origin: bottom;
  transform: rotateX(-90deg);
  background:
    repeating-linear-gradient(180deg, rgba(20, 33, 58, 0.14) 0 2px, transparent 2px 13px),
    var(--c);
  transition: height var(--motion-slow) var(--ease-out);
}
.mesa .side {
  top: 0;
  left: 0;
  width: var(--h, 40px);
  height: 100%;
  transform-origin: left;
  transform: rotateY(-90deg);
  background:
    repeating-linear-gradient(90deg, rgba(20, 33, 58, 0.18) 0 2px, transparent 2px 13px),
    color-mix(in oklab, var(--c) 70%, black);
  transition: width var(--motion-slow) var(--ease-out);
}
.mesa.is-current .top { box-shadow: inset 0 0 0 3px var(--paper), 0 0 40px rgba(255, 255, 255, 0.45); }
.mesa.is-current.is-crossed .side { background: repeating-linear-gradient(90deg, rgba(20, 33, 58, 0.2) 0 2px, transparent 2px 13px), var(--cliff); }
.mesa-label {
  position: absolute;
  left: 50%;
  bottom: -36px;
  transform: translateX(-50%) rotateZ(32deg);
  font-family: var(--font-mono);
  font-size: 16px;
  font-weight: 500;
  color: var(--on-dusk);
  white-space: nowrap;
}
.hiker {
  position: absolute;
  left: calc(var(--pos, 0.5) * var(--w));
  top: 50%;
  width: 0;
  height: 0;
  transform-style: preserve-3d;
  transform: translateZ(var(--z, 40px));
  transition: left 650ms var(--ease-out), transform 650ms var(--ease-out);
}
.hiker[hidden] { display: none; }
.hiker::before {
  content: "";
  position: absolute;
  left: -18px;
  top: -10px;
  width: 36px;
  height: 20px;
  border-radius: 50%;
  background: radial-gradient(closest-side, rgba(20, 33, 58, 0.55), transparent);
}
.hiker-stand { position: absolute; left: 0; bottom: 0; transform-origin: 0 100%; transform: rotateZ(32deg) rotateX(-58deg); }
.hiker-pole { position: absolute; left: -2px; bottom: 0; width: 4px; height: 64px; border-radius: 2px; background: var(--paper); }
.hiker-pole::after { content: ""; position: absolute; left: -7px; bottom: -9px; width: 18px; height: 18px; border-radius: 50%; background: var(--paper); box-shadow: 0 0 0 6px rgba(255, 255, 255, 0.25), 0 0 24px rgba(255, 255, 255, 0.8); animation: pulse 2.4s ease-in-out infinite; }
@keyframes pulse { 50% { box-shadow: 0 0 0 12px rgba(255, 255, 255, 0.08), 0 0 30px rgba(255, 255, 255, 0.9); } }
.hiker-tag {
  position: absolute;
  bottom: 64px;
  left: 0;
  transform: translateX(-50%);
  min-width: 190px;
  padding: var(--space-3) var(--space-4);
  border-radius: 14px;
  background: var(--paper);
  color: var(--ink);
  box-shadow: var(--shadow-lift);
  text-align: center;
  line-height: 1.3;
}
.hiker-tag strong { display: block; font-family: var(--font-display); font-size: 22px; font-weight: 800; letter-spacing: -0.02em; }
.hiker-tag span { display: block; font-size: 16px; color: var(--ink-2); }
.hiker-tag::after { content: ""; position: absolute; left: 50%; bottom: -7px; width: 14px; height: 14px; background: var(--paper); transform: translateX(-50%) rotate(45deg); }
.hiker[data-tier="0"] .hiker-tag strong { color: var(--safe); }
.canyon-caption { position: relative; z-index: 1; margin: 0; text-align: center; font-size: var(--fs-small); color: var(--on-dusk-2); }

/* ================= results ================= */
.results-band { position: relative; z-index: 2; margin-top: calc(-1 * var(--space-7)); }
.result { padding: var(--space-6) var(--space-5); }
.result-empty { margin: 0; font-size: 20px; color: var(--ink-2); }
.result-head { display: flex; flex-wrap: wrap; align-items: baseline; justify-content: space-between; gap: var(--space-3); }
.result-head h2 { margin: 0; padding: 0; font-size: var(--fs-h3); }
.result-head h2::before { display: none; }
.tier-chip { display: inline-flex; align-items: center; gap: var(--space-2); padding: var(--space-1) var(--space-4); border-radius: var(--radius-pill); font-weight: 700; font-size: var(--fs-small); background: var(--mist); }
.tier-chip i { width: 14px; height: 14px; border-radius: 4px; background: var(--chip, var(--tier-0)); }
.stats { list-style: none; padding: 0; margin: var(--space-5) 0 0; display: grid; gap: var(--space-3); grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); }
.stats li + li { margin-top: 0; }
.stat { padding: var(--space-4); border-radius: 14px; background: var(--mist); }
.stat-label { display: block; font-size: var(--fs-small); color: var(--ink-2); }
.stat-value { display: block; margin-top: var(--space-1); font-family: var(--font-display); font-weight: 800; font-size: 32px; letter-spacing: -0.02em; line-height: 1.1; font-variant-numeric: tabular-nums; }
.stat-note { display: block; margin-top: var(--space-1); font-size: var(--fs-small); color: var(--ink-2); }
.stat-safe { background: rgba(35, 112, 76, 0.1); }
.stat-safe .stat-value { color: var(--safe); }
.stat-cliff { background: rgba(179, 54, 43, 0.08); }
.stat-cliff .stat-value { color: var(--cliff); }
.result .badge-projected { margin-top: var(--space-4); }

/* ================= 2D elevation profile ================= */
.chart-card { margin-top: var(--space-5); padding: var(--space-5); background: var(--paper); border-radius: var(--radius-card); box-shadow: var(--shadow-card); }
.chart-card h2 { margin: 0; padding: 0; font-size: var(--fs-h3); }
.chart-card h2::before { display: none; }
.chart-card > p { margin-top: var(--space-2); color: var(--ink-2); font-size: var(--fs-small); }
#cliff-chart { margin-top: var(--space-4); }
.irmaa-chart { width: 100%; height: auto; overflow: visible; }
.band { fill-opacity: 0.32; }
.band-0 { fill: var(--tier-0); } .band-1 { fill: var(--tier-1); } .band-2 { fill: var(--tier-2); }
.band-3 { fill: var(--tier-3); } .band-4 { fill: var(--tier-4); } .band-5 { fill: var(--tier-5); }
.step { stroke: var(--ink); stroke-width: 4; stroke-linecap: round; fill: none; }
.step[data-tier="0"] { stroke: var(--safe); }
.cliff { stroke: var(--line); stroke-width: 2; stroke-dasharray: 5 5; }
.cliff.crossed { stroke: var(--cliff); stroke-width: 3; stroke-dasharray: none; }
.headroom { fill: var(--safe); fill-opacity: 0.15; }
.axis { stroke: var(--control-border); stroke-width: 1.5; }
.tick { font-family: var(--font-mono); font-size: 16px; fill: var(--ink-2); }
.marker { fill: var(--trail); stroke: var(--paper); stroke-width: 3; transform-box: fill-box; transform-origin: center; animation: marker-in var(--motion-fast) var(--ease-out); }
.marker-label { font-size: 16px; font-weight: 700; fill: var(--ink); paint-order: stroke; stroke: var(--paper); stroke-width: 5px; stroke-linejoin: round; }
.ghost { stroke: var(--trail); stroke-width: 3; stroke-dasharray: 6 6; fill: none; }
.ghost-dot { fill: var(--paper); stroke: var(--trail); stroke-width: 3; }
@keyframes marker-in { from { transform: scale(0.6); opacity: 0; } to { transform: scale(1); opacity: 1; } }
.legend { list-style: none; padding: 0; margin: var(--space-4) 0 0; display: flex; flex-wrap: wrap; gap: var(--space-2) var(--space-4); font-size: var(--fs-small); color: var(--ink-2); }
.legend li + li { margin-top: 0; }
.legend i { display: inline-block; width: 14px; height: 14px; border-radius: 4px; margin-right: var(--space-2); vertical-align: -1px; }

/* ================= Roth headroom tool ================= */
.headroom-answer { margin-top: var(--space-4); font-size: 21px; }
.headroom-answer strong { color: var(--safe); font-family: var(--font-display); font-size: 28px; }

/* ================= SSA-44 checklist ================= */
.choice-list { list-style: none; padding: 0; margin: var(--space-3) 0 0; display: grid; gap: var(--space-2); }
.choice-list li + li { margin-top: 0; }
.choice { display: flex; gap: var(--space-3); align-items: flex-start; padding: var(--space-3) var(--space-4); min-height: 48px; border: 1.5px solid var(--line); border-radius: var(--radius-control); cursor: pointer; transition: border-color 150ms ease, background-color 150ms ease; }
.choice input { margin-top: 4px; width: 20px; height: 20px; accent-color: var(--trail); flex: none; }
.choice:has(input:checked) { border-color: var(--trail); background: rgba(29, 95, 209, 0.06); }
.choice-group-title { margin-top: var(--space-4); font-weight: 700; font-size: var(--fs-small); color: var(--ink-2); }
.checklist { margin-top: var(--space-5); }
.checklist h2 { margin-top: 0; }
.checklist ol, .checklist ul { padding-left: 1.3em; }
.verdict { padding: var(--space-4) var(--space-5); border-radius: 14px; font-weight: 700; font-size: 20px; }
.verdict-yes { background: rgba(35, 112, 76, 0.12); color: var(--safe); }
.verdict-no { background: rgba(179, 54, 43, 0.08); color: var(--cliff); }

/* ================= sections below the tool ================= */
.section-wide { margin-top: var(--space-8); }
.tier-strip { display: grid; grid-template-columns: repeat(6, 1fr); gap: 4px; margin-top: var(--space-5); align-items: end; height: 120px; }
.tier-strip span { border-radius: 8px 8px 2px 2px; }

/* ================= print ================= */
@media print {
  .site-header, nav, .site-footer, .ad-slot, form, .hero-visual, .no-print { display: none !important; }
  body { background: #fff; }
  .checklist { width: 100%; max-width: none; box-shadow: none; }
  .hero { background: none; color: #000; padding: 0; }
  .hero h1, .hero .lede { color: #000; }
}

/* ================= compact hero (tool pages) ================= */
.hero-compact { padding-block: var(--space-7) var(--space-8); }
.hero-compact h1 { max-width: 18ch; }
.hero-compact .badge-projected { margin-top: var(--space-4); background: rgba(215, 182, 90, 0.18); color: var(--on-dusk); border-color: var(--tier-1); }
.hero-compact .canyon { height: 300px; }
@media (min-width: 1080px) { .hero-compact .canyon { height: 380px; } }

/* stacked strata tower: yearly cost per tier as rising columns */
.strata-tower {
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  grid-template-rows: 100%;
  align-items: end;
  gap: 6px;
  height: 300px;
  padding: var(--space-5) var(--space-4) 0;
  perspective: 900px;
}
.strata-tower span {
  position: relative;
  height: var(--h);
  border-radius: 10px 10px 3px 3px;
  background-image: repeating-linear-gradient(180deg, rgba(20, 33, 58, 0.16) 0 2px, transparent 2px 14px);
  box-shadow: inset -10px 0 0 rgba(20, 33, 58, 0.18), 0 18px 30px -18px rgba(0, 0, 0, 0.6);
  transform-origin: bottom;
  animation: tower-rise var(--motion-slow) var(--ease-out) both;
}
.strata-tower span:nth-child(2) { animation-delay: 60ms; }
.strata-tower span:nth-child(3) { animation-delay: 120ms; }
.strata-tower span:nth-child(4) { animation-delay: 180ms; }
.strata-tower span:nth-child(5) { animation-delay: 240ms; }
.strata-tower span:nth-child(6) { animation-delay: 300ms; }
.strata-tower b {
  position: absolute;
  top: -30px;
  left: 50%;
  transform: translateX(-50%);
  font-family: var(--font-mono);
  font-size: 16px;
  font-weight: 500;
  color: var(--on-dusk);
  white-space: nowrap;
}
@keyframes tower-rise { from { transform: scaleY(0.2); } to { transform: scaleY(1); } }
@media (max-width: 559px) { .strata-tower b { display: none; } .strata-tower { height: 200px; } }

/* two columns on the checklist tool */
.tool-columns { display: grid; gap: var(--space-5); align-items: start; }
.tool-columns .calculator { margin-top: 0; }
@media (min-width: 1080px) { .tool-columns { grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); } }