:root {
  --ink: #101418;
  --ink-soft: #3d4752;
  --mute: #6b7580;
  --line: rgba(16, 20, 24, 0.12);
  --line-strong: rgba(16, 20, 24, 0.22);
  --paper: #f4f6f3;
  --paper-2: #e8eef0;
  --surface: rgba(255, 255, 255, 0.62);
  --accent: #0b7a72;
  --accent-ink: #06554f;
  --accent-wash: rgba(11, 122, 114, 0.1);
  --warn: #8a4d16;
  --warn-bg: rgba(255, 236, 210, 0.85);
  --up: #0b7a4b;
  --down: #b42318;
  --display: "Archivo Black", "Arial Black", Impact, sans-serif;
  --sans: "Familjen Grotesk", "Segoe UI", sans-serif;
  font-family: var(--sans);
  color: var(--ink);
  line-height: 1.45;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  min-height: 100vh;
  color: var(--ink);
  background:
    radial-gradient(900px 520px at 92% -8%, #c9e5e2 0%, transparent 58%),
    radial-gradient(720px 480px at -8% 12%, #d7e4f2 0%, transparent 52%),
    linear-gradient(165deg, #f7f8f5 0%, var(--paper) 45%, var(--paper-2) 100%);
  overflow-x: hidden;
}

body::before {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  opacity: 0.35;
  background-image:
    linear-gradient(rgba(16, 20, 24, 0.035) 1px, transparent 1px),
    linear-gradient(90deg, rgba(16, 20, 24, 0.035) 1px, transparent 1px);
  background-size: 48px 48px;
  mask-image: linear-gradient(180deg, #000 0%, transparent 78%);
}

a {
  color: var(--accent-ink);
  text-underline-offset: 0.18em;
}
a:hover { color: var(--ink); }

.shell {
  width: min(1080px, calc(100% - 2rem));
  margin: 0 auto;
  position: relative;
}

.nav {
  display: flex;
  justify-content: flex-end;
  gap: 1.25rem;
  padding: 1.35rem 0 0.25rem;
  font-size: 0.92rem;
  font-weight: 500;
  color: var(--mute);
  animation: enter 0.6s ease both;
}
.nav a {
  color: inherit;
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: color 0.15s ease, border-color 0.15s ease;
}
.nav a:hover {
  color: var(--ink);
  border-bottom-color: var(--line-strong);
}

.hero {
  padding: 3.2rem 0 2rem;
  max-width: 18ch;
  animation: enter 0.7s ease 0.05s both;
}
.brand {
  margin: 0;
  font-family: var(--display);
  font-size: clamp(3.4rem, 9.5vw, 5.8rem);
  font-weight: 400; /* Archivo Black is a single heavy cut */
  letter-spacing: -0.02em;
  line-height: 0.92;
  font-feature-settings: "liga" 0, "clig" 0;
}
.lede {
  margin: 1.15rem 0 0;
  max-width: 28rem;
  font-size: 1.14rem;
  color: var(--ink-soft);
  letter-spacing: -0.01em;
}
.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.85rem;
  margin-top: 1.6rem;
  align-items: center;
}
.btn {
  appearance: none;
  border: 1px solid var(--ink);
  background: var(--ink);
  color: #f5f7f4;
  padding: 0.8rem 1.15rem;
  font: inherit;
  font-weight: 600;
  letter-spacing: -0.01em;
  text-decoration: none;
  cursor: pointer;
  transition: transform 0.15s ease, background 0.15s ease, color 0.15s ease;
}
.btn:hover { background: #243039; }
.btn:active { transform: translateY(1px); }
.btn-ghost {
  background: transparent;
  color: var(--ink);
}
.btn-ghost:hover { background: rgba(16, 20, 24, 0.05); }

.disclaimer {
  margin: 0 0 1.5rem;
  padding: 0.75rem 0;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  color: var(--warn);
  font-size: 0.9rem;
  animation: enter 0.6s ease 0.12s both;
}
.disclaimer strong { color: #6d3b0f; }

.workspace {
  display: grid;
  grid-template-columns: 1.05fr 0.95fr;
  gap: 1.5rem 2rem;
  padding-bottom: 3rem;
  align-items: start;
  animation: enter 0.7s ease 0.16s both;
}
@media (max-width: 860px) {
  .workspace { grid-template-columns: 1fr; }
  .hero { max-width: none; padding-top: 2.2rem; }
}

.form-block h2,
.results-block h2 {
  margin: 0 0 0.85rem;
  font-family: var(--sans);
  font-size: 1.4rem;
  font-weight: 700;
  letter-spacing: -0.03em;
}

.meta {
  margin: -0.35rem 0 1.1rem;
  color: var(--mute);
  font-size: 0.88rem;
}

.fields {
  display: grid;
  gap: 0.85rem;
}
.field {
  display: grid;
  gap: 0.4rem;
}
.field label {
  font-size: 0.88rem;
  font-weight: 600;
  color: var(--ink-soft);
}
.field input,
.field select {
  width: 100%;
  border: 1px solid var(--line-strong);
  border-radius: 0;
  background: #fff;
  padding: 0.7rem 0.8rem;
  font: inherit;
  font-size: 1rem;
  font-weight: 500;
  letter-spacing: -0.01em;
  color: var(--ink);
  font-variant-numeric: tabular-nums;
  transition: border-color 0.15s ease, box-shadow 0.15s ease;
}
.field select {
  appearance: none;
  background-image:
    linear-gradient(45deg, transparent 50%, var(--mute) 50%),
    linear-gradient(135deg, var(--mute) 50%, transparent 50%);
  background-position:
    calc(100% - 16px) calc(50% - 3px),
    calc(100% - 10px) calc(50% - 3px);
  background-size: 6px 6px, 6px 6px;
  background-repeat: no-repeat;
  padding-right: 2rem;
}
.field input:hover,
.field select:hover {
  border-color: rgba(16, 20, 24, 0.35);
}
.field input:focus,
.field select:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-wash);
}
.field input::placeholder {
  color: #9aa3ad;
  font-weight: 400;
}

.form-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.85rem;
  align-items: center;
  margin-top: 1.2rem;
}
.hint {
  margin: 0;
  color: var(--mute);
  font-size: 0.86rem;
}

.results-block {
  position: sticky;
  top: 1rem;
  padding: 1.25rem 1.3rem 1.35rem;
  background: var(--surface);
  backdrop-filter: blur(14px);
  border: 1px solid var(--line);
}
.results-block[data-empty="true"] .board {
  opacity: 0.45;
}

.board {
  display: grid;
  gap: 1rem;
}
.metric {
  padding-bottom: 0.9rem;
  border-bottom: 1px solid var(--line);
}
.metric:last-child {
  border-bottom: 0;
  padding-bottom: 0;
}
.metric .label {
  margin: 0;
  font-size: 0.78rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--mute);
}
.metric .value {
  margin: 0.2rem 0 0;
  font-family: var(--display);
  font-size: clamp(2.15rem, 4.3vw, 2.8rem);
  font-weight: 400;
  letter-spacing: -0.02em;
  line-height: 1;
  font-variant-numeric: tabular-nums;
  transition: color 0.2s ease;
}
.metric .sub {
  margin: 0.35rem 0 0;
  color: var(--mute);
  font-size: 0.9rem;
}
.metric .value.up { color: var(--up); }
.metric .value.down { color: var(--down); }

.notes {
  margin: 1.1rem 0 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 0.3rem;
  color: var(--mute);
  font-size: 0.84rem;
}
.notes li::before {
  content: "· ";
  color: var(--accent);
}

.error {
  margin-top: 1rem;
  padding: 0.8rem 0.9rem;
  border: 1px solid rgba(180, 35, 24, 0.25);
  background: rgba(180, 35, 24, 0.06);
  color: var(--down);
  font-size: 0.92rem;
}
.error[hidden] { display: none !important; }

.page {
  padding: 2rem 0 3.5rem;
  animation: enter 0.55s ease both;
}
.page-panel {
  max-width: 42rem;
}
.page-panel h1 {
  margin: 0 0 0.9rem;
  font-family: var(--display);
  font-size: clamp(2.3rem, 5vw, 3.1rem);
  font-weight: 400;
  letter-spacing: -0.02em;
  line-height: 1;
}
.page-panel h2 {
  margin: 1.5rem 0 0.4rem;
  font-size: 1.05rem;
  letter-spacing: -0.02em;
}
.page-panel p,
.page-panel li {
  color: var(--ink-soft);
}
.back {
  display: inline-block;
  margin-bottom: 1rem;
  color: var(--mute);
  text-decoration: none;
  font-weight: 500;
}
.back:hover { color: var(--ink); }

footer {
  padding: 0 0 2.75rem;
  color: var(--mute);
  font-size: 0.86rem;
}
footer p { margin: 0; }

@keyframes enter {
  from {
    opacity: 0;
    transform: translateY(14px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes pop {
  from {
    opacity: 0;
    transform: translateY(8px) scale(0.985);
  }
  to {
    opacity: 1;
    transform: translateY(0) scale(1);
  }
}

.metric.is-live {
  animation: pop 0.35s ease both;
}

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