@import url("https://fonts.googleapis.com/css2?family=Fraunces:opsz,wght@9..144,600;9..144,700&family=Space+Grotesk:wght@400;500;700&display=swap");

:root {
  --bg: #f7f4e8;
  --bg-accent: #efe7cd;
  --panel: #fffdfa;
  --ink: #11263b;
  --muted: #4f5c6a;
  --line: #d6caa0;
  --hot: #c0392b;
  --ok: #1e8a52;
  --gold: #f1b841;
  --radius: 18px;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  color: var(--ink);
  font-family: "Space Grotesk", "Avenir Next", "Segoe UI", sans-serif;
  background:
    radial-gradient(circle at 0% 0%, #ffe9b7 0%, transparent 45%),
    radial-gradient(circle at 100% 100%, #fbd39f 0%, transparent 42%),
    linear-gradient(140deg, var(--bg) 0%, var(--bg-accent) 100%);
  min-height: 100vh;
}

.layout {
  width: min(1100px, 92vw);
  margin: 2rem auto 3rem;
  display: grid;
  gap: 1rem;
}

.hero,
.panel {
  background: var(--panel);
  border: 2px solid var(--line);
  border-radius: var(--radius);
  box-shadow: 0 12px 28px rgba(17, 38, 59, 0.08);
  padding: 1.2rem;
}

.hero {
  position: relative;
  overflow: hidden;
}

.hero::after {
  content: "";
  position: absolute;
  inset: auto -8% -42% auto;
  width: 45%;
  height: 80%;
  border-radius: 50%;
  background: linear-gradient(180deg, rgba(241, 184, 65, 0.45), rgba(241, 184, 65, 0));
}

.hero-kicker {
  margin: 0;
  font-size: 0.82rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--muted);
}

h1,
h2 {
  font-family: "Fraunces", Georgia, serif;
  margin: 0 0 0.45rem;
}

h1 {
  font-size: clamp(1.6rem, 3.4vw, 2.5rem);
}

h2 {
  font-size: 1.25rem;
}

.hero p {
  margin: 0.2rem 0;
  max-width: 66ch;
}

.measurement-guide {
  display: flex;
  justify-content: center;
  margin: 0 0 1rem;
}

.measurement-guide-image {
  display: block;
  width: min(50%);
  height: auto;
}

form {
  display: grid;
  gap: 0.75rem;
}

.grid-head,
.measurement-row {
  display: grid;
  gap: 0.6rem;
  grid-template-columns: minmax(170px, 1.6fr) 1fr 1fr;
  align-items: center;
}

.grid-head {
  font-size: 0.84rem;
  color: var(--muted);
  letter-spacing: 0.02em;
}

.measurement-row {
  font-weight: 600;
}

.measurement-name {
  display: block;
}

.measurement-input-wrap {
  display: grid;
  gap: 0.24rem;
}

.side-label {
  display: none;
  font-size: 0.78rem;
  font-weight: 700;
  line-height: 1.1;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--muted);
}

.unit-controls {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  align-items: center;
  gap: 0.6rem;
}

.toggle-row {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-weight: 700;
  font-size: 0.95rem;
  color: var(--ink);
}

.toggle-row input[type="checkbox"] {
  width: 1.05rem;
  height: 1.05rem;
  margin: 0;
  accent-color: #20435f;
  box-shadow: none;
}

.unit-select-row {
  display: flex;
  align-items: center;
  gap: 0.45rem;
  font-weight: 700;
}

#sockForm.single-side .grid-head,
#sockForm.single-side .measurement-row {
  grid-template-columns: minmax(170px, 1.6fr) 1fr;
}

#sockForm.single-side .right-head,
#sockForm.single-side .right-input {
  display: none;
}

#sockForm.single-side .left-head {
  visibility: hidden;
}

input,
select {
  width: 100%;
  border: 2px solid var(--line);
  border-radius: 11px;
  padding: 0.62rem 0.72rem;
  color: var(--ink);
  background: #fff;
  font: inherit;
}

input:focus,
select:focus {
  outline: none;
  border-color: var(--gold);
  box-shadow: 0 0 0 3px rgba(241, 184, 65, 0.25);
}

#measurementUnit,
.needle-size-unit-select {
  width: auto;
}

#measurementUnit {
  min-width: 8.5rem;
}

.gauge-row {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 0.6rem;
}

.gauge-row label {
  grid-template-columns: 1fr;
  gap: 0.3rem;
}

.needle-size-controls {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 0.35rem;
  align-items: center;
}

.needle-size-unit-select {
  min-width: 5.1rem;
}

.button-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem;
}

button {
  border: 0;
  border-radius: 999px;
  padding: 0.62rem 1.15rem;
  font: inherit;
  font-weight: 700;
  cursor: pointer;
}

.btn-primary {
  color: #1e1705;
  background: linear-gradient(120deg, #f7c85a, #ef9d25);
}

.btn-secondary {
  color: #fff;
  background: #20435f;
}

button:hover {
  transform: translateY(-1px);
}

.error {
  margin: 0;
  color: var(--hot);
  min-height: 1.2em;
}

.pattern-output {
  background: #fff;
  border: 1px solid #d6d6d6;
  border-radius: 12px;
  padding: 1rem;
  min-height: 240px;
  white-space: normal;
  line-height: 1.45;
}

.pattern-output h1,
.pattern-output h2,
.pattern-output h3 {
  margin: 1rem 0 0.45rem;
}

.pattern-output h1:first-child,
.pattern-output h2:first-child,
.pattern-output h3:first-child {
  margin-top: 0;
}

.pattern-output p {
  margin: 0.5rem 0;
}

.pattern-output ul {
  margin: 0.35rem 0 0.6rem;
  padding-left: 1.2rem;
}

.pattern-output code {
  background: #f5f2e8;
  border: 1px solid #e6dbbb;
  border-radius: 6px;
  padding: 0.03rem 0.3rem;
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  font-size: 0.9em;
}

@media (max-width: 720px) {
  .layout {
    width: min(98vw, 580px);
    margin: 1rem auto 2rem;
  }

  .grid-head {
    display: none;
  }

  .measurement-row,
  .gauge-row label {
    grid-template-columns: 1fr;
    gap: 0.32rem;
    border: 1px solid var(--line);
    border-radius: 12px;
    padding: 0.56rem;
    background: #fffefb;
  }

  #sockForm:not(.single-side) .measurement-row .side-label {
    display: block;
  }

  .gauge-row {
    grid-template-columns: 1fr;
  }

  .unit-controls {
    align-items: stretch;
  }

}