:root {
  --color-bg: #f7f8f6;
  --color-bg-alt: #f0f2ee;
  --color-surface: #ffffff;
  --color-ink: #1a2624;
  --color-ink-muted: #5c6b68;
  --color-primary: #16535c;
  --color-primary-dark: #0b363e;
  --color-primary-light: #eaf2f1;
  --color-accent: #d99a3d;
  --color-accent-dark: #b97f28;
  --color-green: #2f7d4f;
  --color-green-bg: #eaf5ee;
  --color-border: #e4e7e2;
  --radius-sm: 10px;
  --radius: 18px;
  --radius-lg: 26px;
  --shadow: 0 10px 30px -12px rgba(11, 54, 62, 0.18);
  --shadow-sm: 0 4px 14px rgba(11, 54, 62, 0.08);
  --max-width: 1120px;
  font-size: 16px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  /* Keep anchor targets clear of the sticky header (~70px tall), which would
     otherwise cover the heading you just jumped to. On #top the offset is
     larger than the hero's distance from the page start, so the browser
     clamps it to 0 and the link really does return to the very top. */
  scroll-padding-top: 80px;
}

body {
  margin: 0;
  font-family: "Inter", system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  background: var(--color-bg);
  color: var(--color-ink);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

h1, h2, h3 {
  font-family: "Sora", "Inter", system-ui, sans-serif;
  letter-spacing: -0.01em;
}

a {
  color: var(--color-primary);
}

img {
  max-width: 100%;
}

.container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 24px;
}

/* Navigation */
.site-header {
  background: rgba(255, 255, 255, 0.9);
  backdrop-filter: saturate(180%) blur(10px);
  border-bottom: 1px solid var(--color-border);
  position: sticky;
  top: 0;
  z-index: 10;
}

.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px 24px;
  max-width: var(--max-width);
  margin: 0 auto;
}

.nav__logo {
  font-weight: 700;
  font-size: 1.1rem;
  color: var(--color-primary-dark);
  text-decoration: none;
  display: flex;
  align-items: center;
  gap: 10px;
  font-family: "Sora", sans-serif;
}

.nav__logo-mark {
  display: block;
  width: 34px;
  height: 34px;
  border-radius: 10px;
  box-shadow: var(--shadow-sm);
}

.nav__links {
  display: flex;
  align-items: center;
  gap: 22px;
  row-gap: 8px;
  flex-wrap: wrap;
  list-style: none;
  margin: 0;
  padding: 0;
}

.nav__links a {
  text-decoration: none;
  color: var(--color-ink);
  font-weight: 500;
  font-size: 0.93rem;
  padding-bottom: 4px;
  border-bottom: 2px solid transparent;
  transition: color 0.15s ease, border-color 0.15s ease;
}

.nav__links a:hover {
  color: var(--color-primary);
}

.nav__links a.is-active {
  color: var(--color-primary);
  font-weight: 700;
  border-bottom-color: var(--color-accent);
}

.nav__toggle {
  display: none;
  background: none;
  border: none;
  font-size: 1.6rem;
  cursor: pointer;
  color: var(--color-primary-dark);
}

/* Hero */
.hero {
  position: relative;
  overflow: hidden;
  background: radial-gradient(120% 140% at 15% 0%, #1c6b73 0%, var(--color-primary) 42%, var(--color-primary-dark) 100%);
  color: #fff;
  padding: 44px 0 48px;
}

.hero::after {
  content: "";
  position: absolute;
  inset: 0;
  background-image: radial-gradient(rgba(255, 255, 255, 0.08) 1px, transparent 1px);
  background-size: 22px 22px;
  opacity: 0.5;
  pointer-events: none;
}

.hero .container {
  position: relative;
}

.hero__grid {
  display: grid;
  grid-template-columns: 1.25fr 1fr;
  gap: 32px;
  align-items: start;
}

.hero h1 {
  font-size: clamp(1.6rem, 2.6vw, 2.2rem);
  line-height: 1.18;
  margin: 0 0 10px;
}

.hero p {
  color: #d7e7e4;
  font-size: 0.98rem;
  margin: 0 0 20px;
}

.hero p.fineprint {
  font-size: 0.78rem;
  color: rgba(255, 255, 255, 0.6);
  margin: -10px 0 20px;
}

.fineprint a {
  color: rgba(255, 255, 255, 0.8);
  text-decoration: underline;
}

/* Compact rate overview in the hero */
.quick-rates {
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid rgba(255, 255, 255, 0.18);
  border-radius: 16px;
  padding: 16px 20px;
}

.quick-rates__head {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 8px;
  font-size: 0.8rem;
  color: #dcece9;
  margin-bottom: 8px;
}

.quick-rates__head a {
  color: #f2d9a8;
  text-decoration: underline;
  font-weight: 600;
}

.quick-rates__list {
  list-style: none;
  margin: 0;
  padding: 0;
}

.quick-rates__list li {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 8px 0;
  border-top: 1px solid rgba(255, 255, 255, 0.14);
  font-size: 0.92rem;
}

.quick-rates__list li:first-child {
  border-top: none;
}

.qr-rate {
  font-weight: 700;
  font-family: "Sora", sans-serif;
}

.tag-green {
  font-style: normal;
  font-size: 0.62rem;
  font-weight: 700;
  background: rgba(127, 191, 143, 0.25);
  color: #bfe8cb;
  padding: 2px 7px;
  border-radius: 999px;
  margin-left: 7px;
}

.tag-green--light {
  background: var(--color-green-bg);
  color: var(--color-green);
}

/* Channels card in the hero */
.channels-card.hero__channels-card {
  padding: 22px;
}

.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 13px 24px;
  border-radius: 999px;
  font-weight: 600;
  font-size: 0.95rem;
  text-decoration: none;
  border: 2px solid transparent;
  cursor: pointer;
  transition: transform 0.15s ease, box-shadow 0.15s ease, background 0.15s ease;
}

.btn--primary {
  background: var(--color-accent);
  color: #241705;
  box-shadow: 0 8px 20px -6px rgba(217, 154, 61, 0.55);
}

.btn--primary:hover {
  background: var(--color-accent-dark);
  transform: translateY(-1px);
}

.btn--ghost {
  background: rgba(255, 255, 255, 0.06);
  border-color: rgba(255, 255, 255, 0.55);
  color: #fff;
}

.btn--ghost:hover {
  background: rgba(255, 255, 255, 0.14);
  transform: translateY(-1px);
}

@media (max-width: 860px) {
  .hero__grid {
    grid-template-columns: 1fr;
  }
}

/* Sections */
section {
  padding: 64px 0;
}

section:nth-of-type(even) {
  background: var(--color-bg-alt);
}

.section-heading {
  margin-bottom: 8px;
  display: flex;
  align-items: baseline;
  gap: 14px;
  flex-wrap: wrap;
}

.section-heading h2 {
  font-size: 1.8rem;
  margin: 0;
  color: var(--color-primary-dark);
}

.section-heading .last-updated {
  color: var(--color-ink-muted);
  font-size: 0.9rem;
  background: var(--color-primary-light);
  padding: 5px 12px;
  border-radius: 999px;
}

.section-intro {
  color: var(--color-ink-muted);
  max-width: 680px;
  margin: 14px 0 36px;
}

.rate-group {
  margin-bottom: 44px;
}

.rate-group h3 {
  font-size: 1.15rem;
  margin: 0 0 18px;
  color: var(--color-ink);
  display: flex;
  align-items: center;
  gap: 10px;
}

.rate-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(210px, 1fr));
  gap: 20px;
}

.rate-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 24px;
  box-shadow: var(--shadow-sm);
  position: relative;
  transition: transform 0.18s ease, box-shadow 0.18s ease;
  overflow: hidden;
}

.rate-card::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: linear-gradient(90deg, var(--color-primary), var(--color-accent));
}

.rate-card--green::before {
  background: linear-gradient(90deg, var(--color-green), #7fbf8f);
}

.rate-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow);
}

.rate-card__icon {
  width: 38px;
  height: 38px;
  border-radius: 10px;
  background: var(--color-primary-light);
  color: var(--color-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 14px;
}

.rate-card--green .rate-card__icon {
  background: var(--color-green-bg);
  color: var(--color-green);
}

.rate-card__term {
  color: var(--color-ink-muted);
  font-size: 0.9rem;
  margin-bottom: 6px;
}

.rate-card__rate {
  font-size: 2.2rem;
  font-weight: 700;
  color: var(--color-primary-dark);
  font-family: "Sora", sans-serif;
}

.rate-card__rate span {
  font-size: 1rem;
  font-weight: 500;
  color: var(--color-ink-muted);
  margin-left: 4px;
  font-family: "Inter", sans-serif;
}

.badge-green {
  position: absolute;
  top: 20px;
  right: 20px;
  background: var(--color-green-bg);
  color: var(--color-green);
  font-size: 0.7rem;
  font-weight: 700;
  padding: 4px 10px;
  border-radius: 999px;
  letter-spacing: 0.04em;
}

.rate-card--green {
  border-color: #cfe9d8;
}

/* Rate history */
.history-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 20px;
}

.history-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 20px;
  box-shadow: var(--shadow-sm);
}

.history-card--green {
  border-color: #cfe9d8;
}

.history-card__head {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 10px;
  font-weight: 600;
}

.history-card__current {
  font-family: "Sora", sans-serif;
  color: var(--color-primary-dark);
}

.history-card--green .history-card__current {
  color: var(--color-green);
}

.history-chart {
  width: 100%;
  height: auto;
  display: block;
}

.history-chart .axis {
  stroke: var(--color-border);
  stroke-width: 1;
}

.history-chart .point {
  fill: var(--color-primary);
}

.history-chart .point--green {
  fill: var(--color-green);
}

.history-chart .point--muted {
  fill: var(--color-border);
}

.history-chart .history-line {
  stroke: var(--color-primary);
  stroke-width: 2;
}

.history-card--green .history-chart .history-line {
  stroke: var(--color-green);
}

.history-chart text {
  fill: var(--color-ink-muted);
  font-family: "Inter", sans-serif;
}

.history-card__note {
  margin: 8px 0 0;
  font-size: 0.8rem;
  color: var(--color-ink-muted);
}

/* Info / About */
.card-plain {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 32px;
  box-shadow: var(--shadow-sm);
}

.card-plain h2 {
  margin-top: 0;
}

/* Subscription channels card (newsletter / RSS) */
.channels-card {
  background: linear-gradient(135deg, var(--color-surface) 0%, var(--color-primary-light) 130%);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 28px;
  text-align: left;
  box-shadow: var(--shadow-sm);
}

.channels-card h2 {
  margin: 0 0 4px;
  font-size: 1.3rem;
  color: var(--color-primary-dark);
}

.channels-card .channels-intro {
  color: var(--color-ink-muted);
  font-size: 0.85rem;
  margin: 0 0 18px;
}

.channel-list {
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.channel {
  display: flex;
  gap: 12px;
  padding: 14px;
  border: 1px solid var(--color-border);
  border-radius: 12px;
  background: var(--color-surface);
}

.channel__icon {
  flex-shrink: 0;
  width: 34px;
  height: 34px;
  border-radius: 9px;
  background: var(--color-primary-light);
  color: var(--color-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1rem;
}

.channel__body {
  flex: 1;
  min-width: 0;
}

.channel__head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
  margin-bottom: 4px;
}

.channel__title {
  font-weight: 600;
  color: var(--color-ink);
  font-size: 0.92rem;
}

.channels-card .channel__desc {
  color: var(--color-ink-muted);
  font-size: 0.72rem;
  line-height: 1.4;
  margin: 0 0 10px;
}

.channel__action {
  display: flex;
  justify-content: flex-end;
  gap: 8px;
}

.channel__action input[type="email"] {
  flex: 1;
  min-width: 0;
  padding: 9px 12px;
  border-radius: 8px;
  border: 1px solid var(--color-border);
  font-size: 0.82rem;
  background: #f1f2ef;
  color: var(--color-ink-muted);
}

.channel__button {
  display: inline-block;
  width: 150px;
  padding: 9px 14px;
  border-radius: 8px;
  border: none;
  font-size: 0.82rem;
  font-weight: 600;
  text-decoration: none;
  text-align: center;
  white-space: nowrap;
  cursor: pointer;
  background: var(--color-accent);
  color: #241705;
  transition: background 0.15s ease;
}

.channel__button:hover {
  background: var(--color-accent-dark);
}

.channel__button:disabled {
  cursor: not-allowed;
}

.channels-card .form-note {
  font-size: 0.8rem;
  color: var(--color-ink-muted);
  margin: 16px 0 0;
}

/* Disclaimer */
.disclaimer-box {
  background: #fbf6ea;
  border: 1px solid #edd9a3;
  border-radius: var(--radius);
  padding: 30px 32px;
}

.disclaimer-box h2 {
  margin-top: 0;
  color: var(--color-primary-dark);
}

.disclaimer-box p {
  color: #4a4030;
  font-size: 0.95rem;
}

/* Footer */
.site-footer {
  background: var(--color-primary-dark);
  color: #cfe0dd;
  padding: 44px 0 30px;
  font-size: 0.85rem;
}

.footer__top {
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 24px;
  padding-bottom: 24px;
  margin-bottom: 20px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.12);
}

.footer__brand {
  display: flex;
  align-items: center;
  gap: 10px;
  color: #fff;
  font-family: "Sora", sans-serif;
  font-weight: 700;
  font-size: 1.05rem;
}

.site-footer a {
  color: #f2d9a8;
}

.footer__links {
  display: flex;
  gap: 22px;
  list-style: none;
  padding: 0;
  margin: 0;
  flex-wrap: wrap;
}

.footer__disclaimer {
  color: #9db6b1;
  max-width: 760px;
  margin: 0 0 12px;
}

.footer__contact {
  color: #cfe0dd;
  margin: 0 0 12px;
}

/* Imprint / Privacy page */
.legal-page dl {
  display: grid;
  grid-template-columns: 200px 1fr;
  gap: 12px 20px;
}

.legal-page dt {
  font-weight: 600;
  color: var(--color-ink-muted);
}

.legal-page dd {
  margin: 0;
}

.placeholder {
  background: #fff3d6;
  padding: 1px 6px;
  border-radius: 4px;
  color: #6b4d00;
}

.legal-page h2 {
  color: var(--color-primary-dark);
  margin-top: 36px;
}

.legal-page h2:first-of-type {
  margin-top: 0;
}

.legal-note {
  background: var(--color-primary-light);
  border: 1px solid #cfe2df;
  border-radius: var(--radius-sm);
  padding: 16px 20px;
  color: var(--color-ink-muted);
  font-size: 0.92rem;
}

@media (max-width: 720px) {
  .nav__links {
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: var(--color-surface);
    flex-direction: column;
    align-items: flex-start;
    padding: 16px 24px;
    border-bottom: 1px solid var(--color-border);
    display: none;
    gap: 16px;
  }

  .nav__links.is-open {
    display: flex;
  }

  .nav__toggle {
    display: block;
  }

  .legal-page dl {
    grid-template-columns: 1fr;
  }

  .legal-page dt {
    margin-top: 12px;
  }
}