/* Calculator prototype — WAS-inspired styling */

:root {
  --c-bg: #0b0d0c;
  --c-bg-2: #14181a;
  --c-fg: #f4efe6;
  --c-muted: #b9b1a3;
  --c-accent: #e7c66a;
  --c-accent-2: #6fb27a;
  --font-brand: "Asap Condensed", Impact, sans-serif;
  --font-body: "Poppins", system-ui, sans-serif;
  --maxw: 1100px;
}

* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
body {
  background: var(--c-bg);
  color: var(--c-fg);
  font-family: var(--font-body);
  font-weight: 300;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

a { color: var(--c-accent); text-decoration: none; }
a:hover { color: var(--c-fg); }

/* Nav */
.calc-nav {
  position: absolute;
  top: 0; left: 0; right: 0;
  z-index: 20;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1.6rem 2.5rem;
  color: var(--c-fg);
}
.calc-nav__brand {
  font-family: var(--font-brand);
  font-weight: 800;
  font-size: 1.4rem;
  letter-spacing: 0.04em;
  color: var(--c-fg);
  text-transform: uppercase;
}
.calc-nav__links a {
  margin-left: 1.5rem;
  color: var(--c-fg);
  font-size: 0.9rem;
  letter-spacing: 0.05em;
  text-transform: uppercase;
}
.calc-nav__links a:hover { color: var(--c-accent); }

/* Hero */
.calc-hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: flex-end;
  background:
    radial-gradient(ellipse at 70% 30%, rgba(231,198,106,0.15), transparent 60%),
    linear-gradient(180deg, #1c2620 0%, #0b0d0c 100%);
  overflow: hidden;
}
.calc-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background:
    radial-gradient(circle at 20% 80%, rgba(111,178,122,0.18), transparent 50%),
    radial-gradient(circle at 85% 70%, rgba(231,198,106,0.10), transparent 55%);
  pointer-events: none;
}
.calc-hero__scrim {
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, transparent 50%, var(--c-bg) 100%);
  pointer-events: none;
}
.calc-hero__inner {
  position: relative;
  z-index: 2;
  width: 100%;
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 6rem 2.5rem 8rem;
  text-align: center;
}
.calc-hero__eyebrow {
  font-family: var(--font-brand);
  font-size: 0.95rem;
  letter-spacing: 0.4em;
  text-transform: uppercase;
  color: var(--c-accent);
  margin: 0 0 1rem;
}
.calc-hero__title {
  font-family: var(--font-brand);
  font-weight: 800;
  font-size: clamp(3.5rem, 10vw, 8rem);
  line-height: 0.95;
  margin: 0 0 1.5rem;
  letter-spacing: -0.01em;
}
.calc-hero__lede {
  font-size: clamp(1.1rem, 1.6vw, 1.4rem);
  color: var(--c-muted);
  max-width: 38rem;
  margin: 0 auto 2.5rem;
}
.calc-hero__cta {
  display: inline-block;
  padding: 0.9rem 2rem;
  border: 1px solid var(--c-accent);
  border-radius: 999px;
  color: var(--c-accent);
  font-family: var(--font-brand);
  font-size: 1rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  transition: background 0.2s, color 0.2s;
}
.calc-hero__cta:hover {
  background: var(--c-accent);
  color: var(--c-bg);
}

/* Main */
.calc-main { display: block; }

.calc-section {
  padding: 8rem 2.5rem;
  max-width: var(--maxw);
  margin: 0 auto;
}
.calc-section--alt {
  max-width: none;
  background: var(--c-bg-2);
  padding-left: 0;
  padding-right: 0;
}
.calc-section--alt > .calc-inner {
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 0 2.5rem;
}

.calc-eyebrow {
  font-family: var(--font-brand);
  font-size: 0.85rem;
  letter-spacing: 0.4em;
  text-transform: uppercase;
  color: var(--c-accent);
  margin: 0 0 1rem;
}
.calc-h2 {
  font-family: var(--font-brand);
  font-weight: 700;
  font-size: clamp(2.2rem, 5vw, 3.6rem);
  line-height: 1.05;
  margin: 0 0 1.5rem;
}
.calc-p {
  font-size: 1.05rem;
  color: var(--c-muted);
  max-width: 38rem;
}

/* Tool block */
.calc-tool {
  margin-top: 3rem;
  background: linear-gradient(180deg, rgba(255,255,255,0.03), rgba(255,255,255,0.01));
  border: 1px solid rgba(255,255,255,0.08);
  border-radius: 14px;
  padding: 2.5rem;
}
.calc-tool__row {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 1.5rem;
  align-items: center;
  padding: 1rem 0;
  border-bottom: 1px solid rgba(255,255,255,0.06);
}
.calc-tool__row:last-child { border-bottom: 0; }
.calc-tool__label {
  font-size: 0.95rem;
  color: var(--c-fg);
}
.calc-tool__input {
  width: 11rem;
  padding: 0.6rem 0.9rem;
  background: rgba(0,0,0,0.4);
  border: 1px solid rgba(255,255,255,0.12);
  border-radius: 8px;
  color: var(--c-fg);
  font-family: var(--font-body);
  font-size: 1rem;
  text-align: right;
}
.calc-tool__input:focus {
  outline: none;
  border-color: var(--c-accent);
}
.calc-tool__result {
  margin-top: 2rem;
  padding-top: 1.5rem;
  border-top: 1px solid rgba(255,255,255,0.12);
  display: flex;
  justify-content: space-between;
  align-items: baseline;
}
.calc-tool__result-label {
  font-family: var(--font-brand);
  font-size: 1.1rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--c-muted);
}
.calc-tool__result-value {
  font-family: var(--font-brand);
  font-weight: 800;
  font-size: clamp(2rem, 5vw, 3rem);
  color: var(--c-accent);
}

/* Reveal */
.reveal {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.8s ease, transform 0.8s ease;
}
.reveal.is-visible {
  opacity: 1;
  transform: none;
}

/* Footer */
.calc-foot {
  padding: 3rem 2.5rem;
  text-align: center;
  color: var(--c-muted);
  font-size: 0.85rem;
  border-top: 1px solid rgba(255,255,255,0.06);
}

@media (max-width: 640px) {
  .calc-nav { padding: 1rem 1.25rem; }
  .calc-nav__links a { margin-left: 0.9rem; font-size: 0.8rem; }
  .calc-section { padding: 5rem 1.25rem; }
  .calc-tool { padding: 1.5rem; }
  .calc-tool__row { grid-template-columns: 1fr; gap: 0.5rem; }
  .calc-tool__input { width: 100%; }
}