@import url('https://fonts.googleapis.com/css2?family=Source+Sans+3:wght@400;500;600;700&display=swap');

:root {
  --bg: #f5f7f8;
  --surface: #ffffff;
  --surface-subtle: #eef4f7;
  --text: #1f2a30;
  --text-subtle: #5f6b72;
  --border: #cbd5da;
  --border-strong: #8b9aa3;
  --primary: #005b82;
  --primary-hover: #004967;
  --primary-soft: #e4f2f7;
  --accent: #006f5c;
  --accent-soft: #e7f4f0;
  --danger: #b42318;
  --warning-soft: #fff4d6;
  --shadow: 0 2px 8px rgba(31, 42, 48, 0.08);
  --radius: 12px;
  --radius-small: 8px;
  --content-max: 1120px;
  --reading-max: 760px;
  --focus: 3px solid #ffb703;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: 'Source Sans 3', Arial, sans-serif;
  font-size: 18px;
  line-height: 1.55;
}

img { max-width: 100%; display: block; }
button, input { font: inherit; }
button { cursor: pointer; }
button:disabled { cursor: not-allowed; opacity: 0.65; }

a { color: var(--primary); text-underline-offset: 3px; }
a:hover { color: var(--primary-hover); }
a:focus-visible,
button:focus-visible,
input:focus-visible,
summary:focus-visible {
  outline: var(--focus);
  outline-offset: 2px;
}

.skip-link {
  position: absolute;
  left: 12px;
  top: -60px;
  z-index: 100;
  background: var(--surface);
  color: var(--text);
  padding: 10px 14px;
  border: 2px solid var(--primary);
  border-radius: var(--radius-small);
}
.skip-link:focus { top: 12px; }

.container {
  width: min(var(--content-max), calc(100% - 32px));
  margin-inline: auto;
}
.reading {
  width: min(var(--reading-max), 100%);
}

.site-header {
  background: var(--surface);
  border-top: 4px solid var(--primary);
  border-bottom: 1px solid var(--border);
  position: sticky;
  top: 0;
  z-index: 50;
}
.header-inner {
  min-height: 76px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}
.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  color: var(--text);
  text-decoration: none;
  font-weight: 700;
  font-size: 24px;
}
.brand img { width: 44px; height: 44px; }
.brand:hover { color: var(--primary); }
.site-nav {
  display: flex;
  align-items: center;
  gap: 24px;
  font-size: 17px;
}
.site-nav a {
  color: var(--text);
  font-weight: 600;
  text-decoration: none;
  padding: 8px 0;
  border-bottom: 3px solid transparent;
}
.site-nav a[aria-current="page"] { border-bottom-color: var(--primary); color: var(--primary); }
.mobile-nav { display: none; }
.mobile-nav summary {
  list-style: none;
  border: 1px solid var(--border);
  padding: 7px 12px;
  border-radius: var(--radius-small);
  font-weight: 600;
  background: var(--surface);
}
.mobile-nav summary::-webkit-details-marker { display: none; }
.mobile-nav nav {
  position: absolute;
  right: 16px;
  top: 68px;
  width: min(260px, calc(100vw - 32px));
  padding: 10px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}
.mobile-nav a {
  display: block;
  padding: 10px;
  border-radius: var(--radius-small);
  text-decoration: none;
}
.mobile-nav a:hover { background: var(--primary-soft); }

main { min-height: 70vh; }
main > .container { padding-block: 44px 64px; }

.hero {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: clamp(24px, 4vw, 48px);
  box-shadow: var(--shadow);
  margin-bottom: 28px;
}
.hero h1 {
  font-size: clamp(32px, 5vw, 48px);
  line-height: 1.12;
  margin: 0 0 12px;
  max-width: 850px;
  letter-spacing: -0.02em;
}
.hero p { margin: 0; max-width: 760px; }
.hero .lede { font-size: 21px; color: var(--text-subtle); }

.section-heading { margin-bottom: 18px; }
.section-heading h2, .section-heading h3 { margin: 0 0 4px; line-height: 1.2; }
.section-heading p { margin: 0; color: var(--text-subtle); }

.alert {
  border: 1px solid var(--border);
  border-left: 6px solid var(--primary);
  background: var(--primary-soft);
  padding: 14px 16px;
  border-radius: var(--radius-small);
  margin-bottom: 28px;
}
.alert strong { display: block; margin-bottom: 2px; }

.practice-panel {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: clamp(20px, 3vw, 32px);
  box-shadow: var(--shadow);
}
.practice-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
  gap: 28px;
}
.panel-top {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  align-items: flex-start;
  margin-bottom: 18px;
}
.panel-top h2 { margin: 0 0 4px; font-size: 28px; }
.panel-top p { margin: 0; color: var(--text-subtle); }
.language-pill {
  white-space: nowrap;
  font-size: 15px;
  font-weight: 600;
  color: var(--primary);
  background: var(--primary-soft);
  padding: 6px 10px;
  border-radius: 999px;
}

.field { margin-bottom: 18px; }
.field label {
  display: block;
  font-weight: 600;
  margin-bottom: 6px;
}
.field-hint { margin: 4px 0 0; color: var(--text-subtle); font-size: 16px; }
.text-input {
  width: 100%;
  border: 2px solid var(--border-strong);
  border-radius: var(--radius-small);
  padding: 13px 14px;
  background: var(--surface);
  color: var(--text);
}
.text-input::placeholder { color: #71808a; }
.text-input:focus { border-color: var(--primary); }

.primary-button,
.secondary-button,
.link-button {
  min-height: 48px;
  border-radius: var(--radius-small);
  padding: 10px 16px;
  font-weight: 700;
  border: 2px solid transparent;
  transition: background-color 0.15s ease, border-color 0.15s ease, transform 0.05s ease;
}
.primary-button {
  color: #fff;
  background: var(--primary);
  width: 100%;
}
.primary-button:hover { background: var(--primary-hover); }
.primary-button:active, .secondary-button:active, .link-button:active { transform: translateY(1px); }
.secondary-button {
  background: var(--surface);
  color: var(--primary);
  border-color: var(--primary);
}
.secondary-button:hover { background: var(--primary-soft); }
.link-button {
  background: transparent;
  color: var(--primary);
  padding-inline: 0;
}

.status-row {
  display: flex;
  align-items: center;
  gap: 8px;
  min-height: 28px;
  margin-bottom: 12px;
  font-size: 16px;
  color: var(--text-subtle);
}
.status-dot { width: 10px; height: 10px; border-radius: 50%; background: #6b7c86; flex: 0 0 auto; }
.status-dot.is-ready { background: #167d45; }
.status-dot.is-busy { background: #a86000; }
.status-dot.is-error { background: var(--danger); }

.divider {
  display: flex;
  align-items: center;
  gap: 12px;
  margin: 18px 0;
  color: var(--text-subtle);
  font-size: 15px;
}
.divider::before, .divider::after { content: ''; height: 1px; background: var(--border); flex: 1; }
.form-row { display: flex; gap: 10px; }
.form-row .primary-button { width: auto; white-space: nowrap; }

.output-box {
  min-height: 285px;
  border: 1px solid var(--border);
  background: var(--surface-subtle);
  border-radius: var(--radius-small);
  padding: 18px;
  display: flex;
  flex-direction: column;
}
.output-box.is-empty { justify-content: center; }
.output-label {
  color: var(--text-subtle);
  font-size: 15px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}
.output-text {
  font-size: clamp(26px, 4vw, 36px);
  line-height: 1.2;
  margin: 10px 0 22px;
  overflow-wrap: anywhere;
}
.output-actions {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px;
  margin-top: auto;
}

.info-grid, .card-grid, .weather-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
}
.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 20px;
  box-shadow: var(--shadow);
}
.card h3 { margin: 0 0 8px; font-size: 22px; }
.card p { margin: 0; color: var(--text-subtle); }
.card .eyebrow { font-size: 14px; color: var(--primary); font-weight: 700; margin-bottom: 6px; }

.phrase-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 12px;
}
.phrase-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-small);
  padding: 14px;
}
.phrase-card .en { color: var(--text-subtle); font-size: 15px; }
.phrase-card .nb { font-weight: 700; font-size: 20px; margin: 4px 0 10px; }
.phrase-card button { width: 100%; }

.weather-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.weather-card { display: grid; grid-template-columns: auto 1fr; gap: 14px; align-items: start; }
.weather-icon { font-size: 34px; line-height: 1; }
.weather-temp { font-size: 34px; font-weight: 700; line-height: 1; margin: 4px 0; }
.weather-meta { color: var(--text-subtle); font-size: 16px; }
.weather-updated { margin-top: 18px; color: var(--text-subtle); font-size: 14px; }
.weather-error { color: var(--danger); background: #fff1f1; border: 1px solid #e6b3b3; padding: 12px 14px; border-radius: var(--radius-small); }

.faq details {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-small);
  margin-bottom: 10px;
  padding: 0 16px;
}
.faq summary { cursor: pointer; font-weight: 600; padding: 14px 0; }
.faq .answer { padding: 0 0 16px; color: var(--text-subtle); }

.page-title { margin: 0 0 10px; font-size: clamp(32px, 5vw, 44px); line-height: 1.15; }
.page-lede { margin: 0 0 28px; color: var(--text-subtle); font-size: 20px; }
.prose h2 { margin-top: 32px; font-size: 28px; line-height: 1.25; }
.prose h3 { margin-top: 24px; font-size: 22px; }
.prose p, .prose ul { max-width: var(--reading-max); }
.prose li { margin: 6px 0; }

.developer-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 20px; }
.developer-card img { width: 112px; height: 112px; border-radius: 12px; object-fit: cover; border: 1px solid var(--border); margin-bottom: 12px; }
.developer-card h2 { margin: 0 0 2px; }
.developer-role { color: var(--primary); font-weight: 600; margin: 0 0 10px; }
.skill-list { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 8px; }
.skill { background: var(--surface-subtle); border: 1px solid var(--border); border-radius: 999px; padding: 4px 9px; font-size: 15px; }

.site-footer {
  background: #073b4c;
  color: #fff;
  margin-top: 30px;
  padding: 32px 0;
}
.site-footer a { color: #fff; }
.footer-grid {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 24px;
  align-items: start;
}
.footer-links { display: flex; flex-wrap: wrap; gap: 16px 22px; }
.footer-small { color: #d8e5e9; font-size: 15px; }

.noscript {
  background: var(--warning-soft);
  border-bottom: 1px solid #e3c36a;
  padding: 10px 16px;
  text-align: center;
}

@media (max-width: 900px) {
  .practice-grid { grid-template-columns: 1fr; }
  .phrase-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .info-grid { grid-template-columns: 1fr; }
  .developer-grid { grid-template-columns: 1fr; }
}

@media (max-width: 700px) {
  body { font-size: 17px; }
  .container { width: min(var(--content-max), calc(100% - 24px)); }
  .site-nav { display: none; }
  .mobile-nav { display: block; }
  .header-inner { min-height: 68px; }
  .brand { font-size: 21px; }
  .brand img { width: 38px; height: 38px; }
  .form-row { flex-direction: column; }
  .form-row .primary-button { width: 100%; }
  .weather-grid { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; }
}

@media (max-width: 480px) {
  main > .container { padding-block: 28px 48px; }
  .phrase-grid { grid-template-columns: 1fr; }
  .output-actions { grid-template-columns: 1fr; }
  .hero, .practice-panel, .card { padding: 18px; }
}

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