/* Acquisition Analyzer — premium financial UI, no external assets */

:root {
  --ink: #0c1a17;
  --ink-soft: #1e332e;
  --forest: #243f38;
  --mist: #d7e4df;
  --paper: #eef4f1;
  --brass: #a67c4a;
  --brass-deep: #8a6438;
  --copper: #c4895a;
  --line: rgba(12, 26, 23, 0.12);
  --muted: #5c7069;
  --danger: #8b2e2e;
  --danger-bg: #f7e8e8;
  --ok-tint: rgba(36, 63, 56, 0.06);
  --radius: 2px;
  --font-display: "Palatino Linotype", Palatino, "Book Antiqua", Georgia, serif;
  --font-body: Candara, "Segoe UI", Calibri, sans-serif;
  --font-num: "Cascadia Mono", Consolas, "Courier New", monospace;
  --space: clamp(1rem, 2.5vw, 2rem);
  --max: 72rem;
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  color: var(--ink);
  font-family: var(--font-body);
  font-size: 1.05rem;
  line-height: 1.55;
  background:
    radial-gradient(ellipse 90% 60% at 10% -10%, rgba(166, 124, 74, 0.18), transparent 55%),
    radial-gradient(ellipse 70% 50% at 95% 15%, rgba(36, 63, 56, 0.16), transparent 50%),
    linear-gradient(165deg, #e8f0ec 0%, #d4e2dc 42%, #c9d8d1 100%);
  min-height: 100vh;
}

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

a {
  color: var(--brass-deep);
}

a:hover {
  color: var(--ink);
}

/* ---- Atmosphere layer ---- */
.atmosphere {
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 0;
  background:
    linear-gradient(120deg, transparent 40%, rgba(255, 255, 255, 0.25) 50%, transparent 60%);
  background-size: 200% 200%;
  animation: sheen 18s ease-in-out infinite;
  opacity: 0.55;
}

@keyframes sheen {
  0%,
  100% {
    background-position: 0% 40%;
  }
  50% {
    background-position: 100% 60%;
  }
}

.page {
  position: relative;
  z-index: 1;
}

/* ---- Hero (one composition, brand-first, compact — reach calculator sooner) ---- */
.hero {
  min-height: 0;
  display: grid;
  align-items: end;
  padding: clamp(1.1rem, 2.8vw, 2rem);
  position: relative;
  overflow: hidden;
}

.hero-plane {
  position: absolute;
  inset: 0;
  background:
    linear-gradient(180deg, rgba(12, 26, 23, 0.15) 0%, rgba(12, 26, 23, 0.72) 55%, rgba(12, 26, 23, 0.92) 100%),
    linear-gradient(105deg, #1a3530 0%, #2a4a42 35%, #3d5c4f 70%, #1e332e 100%);
  z-index: 0;
}

.hero-plane::after {
  content: "";
  position: absolute;
  inset: 0;
  background:
    repeating-linear-gradient(
      -18deg,
      transparent,
      transparent 14px,
      rgba(255, 255, 255, 0.015) 14px,
      rgba(255, 255, 255, 0.015) 15px
    );
  opacity: 0.9;
}

.hero-glow {
  position: absolute;
  width: min(55vw, 34rem);
  height: min(55vw, 34rem);
  border-radius: 50%;
  background: radial-gradient(circle, rgba(196, 137, 90, 0.28), transparent 68%);
  top: 8%;
  right: -8%;
  z-index: 1;
  animation: drift 12s ease-in-out infinite alternate;
}

@keyframes drift {
  from {
    transform: translate(0, 0) scale(1);
  }
  to {
    transform: translate(-4%, 6%) scale(1.06);
  }
}

.hero-inner {
  position: relative;
  z-index: 2;
  max-width: var(--max);
  width: 100%;
  margin: 0 auto;
  padding-top: clamp(1.5rem, 4vh, 2.75rem);
  padding-bottom: clamp(1.25rem, 3.5vh, 2.25rem);
  color: #f3f7f5;
}

.brand {
  font-family: var(--font-display);
  font-size: clamp(2.35rem, 6.5vw, 4.35rem);
  font-weight: 400;
  letter-spacing: -0.02em;
  line-height: 0.95;
  margin: 0 0 0.75rem;
  animation: rise-in 0.9s ease-out both;
}

.brand span {
  display: block;
  color: var(--copper);
  font-size: 0.42em;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  margin-bottom: 0.4rem;
  font-family: var(--font-body);
  font-weight: 600;
}

.hero h1 {
  font-family: var(--font-display);
  font-size: clamp(1.35rem, 3vw, 1.95rem);
  font-weight: 400;
  line-height: 1.2;
  max-width: 22ch;
  margin: 0 0 0.65rem;
  color: #f8faf9;
  animation: rise-in 0.9s ease-out 0.12s both;
}

.hero-lead {
  max-width: 38ch;
  margin: 0 0 1.15rem;
  color: rgba(243, 247, 245, 0.82);
  font-size: 1.02rem;
  animation: rise-in 0.9s ease-out 0.22s both;
}

.cta-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem 1rem;
  animation: rise-in 0.9s ease-out 0.32s both;
}

@keyframes rise-in {
  from {
    opacity: 0;
    transform: translateY(1.1rem);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.4rem;
  font-family: var(--font-body);
  font-size: 0.98rem;
  font-weight: 600;
  text-decoration: none;
  border: 1px solid transparent;
  padding: 0.78rem 1.35rem;
  cursor: pointer;
  transition: background 0.2s ease, color 0.2s ease, border-color 0.2s ease,
    transform 0.2s ease;
}

.btn:active {
  transform: translateY(1px);
}

.btn-primary {
  background: var(--brass);
  color: #0c1a17;
  border-color: var(--brass);
}

.btn-primary:hover {
  background: #b88a52;
  color: #0c1a17;
}

.btn-ghost {
  background: transparent;
  color: #f3f7f5;
  border-color: rgba(243, 247, 245, 0.45);
}

.btn-ghost:hover {
  border-color: #f3f7f5;
  color: #fff;
}

.btn-secondary {
  background: transparent;
  color: var(--ink-soft);
  border-color: rgba(12, 26, 23, 0.28);
}

.btn-secondary:hover {
  border-color: var(--brass-deep);
  color: var(--ink);
  background: rgba(166, 124, 74, 0.1);
}

.btn:disabled {
  opacity: 0.45;
  cursor: not-allowed;
}

/* ---- Sections ---- */
.section {
  padding: clamp(2.25rem, 5.5vw, 4rem) var(--space);
}

#calculator.section {
  padding-top: clamp(1.75rem, 4vw, 2.75rem);
}

.section-inner {
  max-width: var(--max);
  margin: 0 auto;
}

.section-kicker {
  font-size: 0.78rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--brass-deep);
  font-weight: 700;
  margin: 0 0 0.5rem;
}

.section h2 {
  font-family: var(--font-display);
  font-size: clamp(1.75rem, 3.2vw, 2.4rem);
  font-weight: 400;
  line-height: 1.15;
  margin: 0 0 0.65rem;
  max-width: 22ch;
}

.section-lead {
  margin: 0 0 2rem;
  color: var(--muted);
  max-width: 48ch;
}

.reveal {
  opacity: 0;
  transform: translateY(1.25rem);
  transition: opacity 0.7s ease, transform 0.7s ease;
}

.reveal.is-visible {
  opacity: 1;
  transform: translateY(0);
}

/* ---- Calculator ---- */
.calc-layout {
  display: grid;
  gap: 2rem;
}

@media (min-width: 900px) {
  .calc-layout {
    grid-template-columns: minmax(0, 1.05fr) minmax(0, 0.95fr);
    align-items: start;
    gap: 2.5rem;
  }
}

.field-grid {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.field-pair {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1rem;
  min-width: 0;
}

/* Desktop: subgrid keeps label / input / hint rows aligned across each pair */
@media (min-width: 560px) {
  .field-pair {
    grid-template-columns: 1fr 1fr;
    grid-template-rows: auto auto auto;
    column-gap: 1.25rem;
    row-gap: 0.35rem;
  }

  .field-pair > .field {
    display: grid;
    grid-template-rows: subgrid;
    grid-row: 1 / span 3;
    gap: 0;
    min-width: 0;
  }
}

.field {
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
  min-width: 0;
}

.field.full {
  width: 100%;
}

.field label {
  font-size: 0.88rem;
  font-weight: 600;
  line-height: 1.35;
  color: var(--ink-soft);
}

.field .hint,
.metric-help,
.example-note {
  font-size: 0.78rem;
  line-height: 1.4;
  color: var(--muted);
}

.field .hint {
  display: block;
}

.metric-help {
  display: block;
  margin-top: 0.2rem;
  max-width: 28rem;
  font-weight: 400;
}

.example-note {
  margin: 0.65rem 0 0;
  max-width: 42rem;
}

.field input {
  font-family: var(--font-num);
  font-size: 1rem;
  line-height: 1.25;
  padding: 0.7rem 0.8rem;
  min-height: 2.85rem;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: rgba(255, 255, 255, 0.72);
  color: var(--ink);
  width: 100%;
}

.field input:focus {
  outline: 2px solid rgba(166, 124, 74, 0.55);
  outline-offset: 1px;
  border-color: var(--brass);
}

.form-actions {
  margin-top: 1.25rem;
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
}

.errors {
  margin: 0 0 1.25rem;
  padding: 1rem 1.1rem;
  background: var(--danger-bg);
  border-left: 3px solid var(--danger);
  color: var(--danger);
  font-size: 0.95rem;
}

.errors ul {
  margin: 0.4rem 0 0;
  padding-left: 1.2rem;
}

.results-panel {
  padding: 0;
}

.results-panel[hidden] {
  display: none;
}

.metric-list {
  list-style: none;
  margin: 0;
  padding: 0;
  border-top: 1px solid var(--line);
}

.metric-list li {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: 1rem;
  padding: 0.85rem 0;
  border-bottom: 1px solid var(--line);
}

.metric-list .label {
  color: var(--muted);
  font-size: 0.92rem;
  flex: 1;
  min-width: 0;
}

.metric-list .value {
  font-family: var(--font-num);
  font-size: 1.02rem;
  font-weight: 600;
  text-align: right;
  color: var(--ink);
}

.subhead {
  font-family: var(--font-display);
  font-size: 1.35rem;
  margin: 2rem 0 0.75rem;
  font-weight: 400;
}

.stress-block {
  margin-top: 0.5rem;
  padding-top: 0.25rem;
  background: var(--ok-tint);
  margin-left: -0.75rem;
  margin-right: -0.75rem;
  padding-left: 0.75rem;
  padding-right: 0.75rem;
  padding-bottom: 0.5rem;
}

.download-row {
  margin-top: 1.5rem;
}

/* ---- Premium / Interest / Assumptions ---- */
.premium {
  background: linear-gradient(160deg, var(--ink) 0%, var(--forest) 100%);
  color: #eef4f1;
}

.premium .section-kicker {
  color: var(--copper);
}

.premium .section-lead {
  color: rgba(238, 244, 241, 0.75);
}

.premium-price {
  font-family: var(--font-display);
  font-size: clamp(2.5rem, 5vw, 3.5rem);
  margin: 0 0 0.35rem;
  color: #fff;
}

.premium-price small {
  font-size: 0.4em;
  font-family: var(--font-body);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--copper);
  margin-left: 0.35rem;
}

.premium-list {
  margin: 1.25rem 0 0;
  padding: 0;
  list-style: none;
  max-width: 36rem;
}

.premium-list li {
  padding: 0.65rem 0;
  border-bottom: 1px solid rgba(238, 244, 241, 0.12);
  color: rgba(238, 244, 241, 0.88);
}

.premium-list li::before {
  content: "—";
  color: var(--copper);
  margin-right: 0.65rem;
}

.badge-soon {
  display: inline-block;
  margin-top: 1.25rem;
  font-size: 0.75rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  font-weight: 700;
  color: var(--ink);
  background: var(--brass);
  padding: 0.4rem 0.75rem;
}

.placeholder-banner {
  margin-bottom: 1.25rem;
  padding: 0.85rem 1rem;
  border: 1px dashed rgba(12, 26, 23, 0.35);
  background: rgba(255, 255, 255, 0.45);
  font-size: 0.92rem;
  color: var(--ink-soft);
}

.interest-fields-note {
  margin: 0 0 1rem;
  max-width: 36rem;
  font-size: 0.95rem;
  color: var(--muted);
}

.interest-tally-link {
  display: inline-flex;
  text-decoration: none;
}

.interest-tally-link.is-disabled,
.interest-tally-link[aria-disabled="true"] {
  pointer-events: none;
  opacity: 0.45;
}

.interest-note {
  margin-top: 1rem;
  font-size: 0.95rem;
  color: var(--brass-deep);
  font-weight: 600;
}

.privacy {
  background: rgba(255, 255, 255, 0.28);
  border-top: 1px solid var(--line);
}

.privacy-list {
  margin: 0;
  padding-left: 1.2rem;
  color: var(--muted);
  max-width: 48rem;
}

.privacy-list li {
  margin-bottom: 0.65rem;
}

.assumptions {
  background: rgba(255, 255, 255, 0.35);
  border-top: 1px solid var(--line);
}

.assumptions ul {
  margin: 0;
  padding-left: 1.2rem;
  color: var(--muted);
  max-width: 48rem;
}

.assumptions li {
  margin-bottom: 0.5rem;
}

.site-footer {
  padding: 2rem var(--space) 3rem;
  border-top: 1px solid var(--line);
  color: var(--muted);
  font-size: 0.9rem;
}

.site-footer .section-inner {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 1rem;
}

.site-footer strong {
  font-family: var(--font-display);
  font-weight: 400;
  color: var(--ink-soft);
  font-size: 1.15rem;
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation: none !important;
    transition: none !important;
  }

  .reveal {
    opacity: 1;
    transform: none;
  }
}