:root {
  --ink: #14221c;
  --ink-soft: #3d4a43;
  --paper: #f4f1ea;
  --card: #fffcf7;
  --pine: #0e3d2c;
  --pine-mid: #1b5c42;
  --line: #e4d9cc;
  --copper: #7a3414;
  --copper-deep: #5e270f;
  --sand: #f7f3ec;
  --ok: #0f5c40;
  --warn: #8a4b12;
  --bad: #7c2430;
  --focus: #0b6b86;
  --header: 4.75rem;
  --measure: 68rem;
  --shadow: 0 18px 40px rgba(20, 34, 28, 0.08);
  color-scheme: light;
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  scroll-padding-top: var(--header);
}

body {
  margin: 0;
  color: var(--ink);
  background:
    radial-gradient(1100px 460px at 0% -8%, #e5f0e8 0%, transparent 58%),
    radial-gradient(820px 380px at 100% 0%, #f8e6d8 0%, transparent 52%),
    var(--paper);
  font-family: "Segoe UI", Candara, "Trebuchet MS", sans-serif;
  font-size: 1.0625rem;
  line-height: 1.65;
}

img {
  max-width: 100%;
  height: auto;
}

a {
  color: var(--pine-mid);
  text-decoration-thickness: 1px;
  text-underline-offset: 0.18em;
}

a:hover {
  color: var(--pine);
}

:focus-visible {
  outline: 3px solid var(--focus);
  outline-offset: 3px;
}

.skip {
  position: absolute;
  left: 1rem;
  top: 0;
  transform: translateY(-120%);
  background: var(--pine);
  color: #fff;
  padding: 0.7rem 1rem;
  z-index: 20;
}

.skip:focus {
  transform: none;
}

.wrap {
  width: min(var(--measure), calc(100% - 2rem));
  margin-inline: auto;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  height: var(--header);
  display: flex;
  align-items: center;
  background: rgba(244, 241, 234, 0.92);
  border-bottom: 1px solid var(--line);
  backdrop-filter: blur(10px);
}

.header-bar {
  width: min(var(--measure), calc(100% - 2rem));
  margin-inline: auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}

.brand {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  color: var(--ink);
  text-decoration: none;
  font-family: Palatino, "Palatino Linotype", Georgia, serif;
  font-weight: 700;
  letter-spacing: -0.02em;
}

.brand img {
  width: 40px;
  height: 40px;
}

.nav-toggle {
  display: none;
  border: 1px solid var(--pine);
  background: transparent;
  color: var(--pine);
  border-radius: 999px;
  min-height: 2.75rem;
  padding: 0 1rem;
  font: inherit;
}

.site-nav ul {
  display: flex;
  gap: 0.35rem 1rem;
  list-style: none;
  margin: 0;
  padding: 0;
}

.site-nav a {
  color: var(--ink);
  text-decoration: none;
  font-size: 0.98rem;
}

.site-nav a:hover,
.site-nav a[aria-current="true"] {
  color: var(--pine-mid);
  text-decoration: underline;
}

.hero {
  padding: 2.5rem 0 3rem;
}

.hero-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.05fr) minmax(0, 0.95fr);
  gap: 2rem;
  align-items: center;
}

h1,
h2,
h3,
h4 {
  font-family: Palatino, "Palatino Linotype", Georgia, serif;
  line-height: 1.2;
  letter-spacing: -0.02em;
  margin: 0 0 0.75rem;
}

h1 {
  font-size: clamp(2rem, 4vw, 3.35rem);
}

h2 {
  font-size: clamp(1.6rem, 2.4vw, 2.15rem);
}

h3 {
  font-size: 1.3rem;
}

h4 {
  font-size: 1.08rem;
}

.kicker {
  margin: 0 0 0.8rem;
  color: var(--copper);
  font-weight: 700;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  font-size: 0.82rem;
}

.lede {
  font-size: 1.12rem;
  color: var(--ink-soft);
}

.meta-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin: 1.2rem 0 1.4rem;
  padding: 0;
  list-style: none;
}

.meta-row li {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 999px;
  padding: 0.25rem 0.75rem;
  font-size: 0.92rem;
}

.actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 3rem;
  padding: 0.65rem 1.15rem;
  border-radius: 999px;
  text-decoration: none;
  font-weight: 700;
  border: 2px solid transparent;
}

.button-primary {
  background: var(--copper);
  color: #fff;
}

.button-primary:hover {
  background: var(--copper-deep);
  color: #fff;
}

.button-secondary {
  background: transparent;
  color: var(--pine);
  border-color: var(--pine);
}

.hero-visual {
  margin: 0;
  background: var(--card);
  border-radius: 1.25rem;
  box-shadow: var(--shadow);
  overflow: hidden;
}

.hero-visual img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 1200 / 800;
}

.hero-visual figcaption {
  padding: 0.8rem 1rem 1rem;
  color: var(--ink-soft);
  font-size: 0.92rem;
}

.section {
  padding: 1rem 0 3.2rem;
}

.section-head {
  max-width: 46rem;
  margin-bottom: 1.4rem;
}

.panel {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 1.1rem;
  box-shadow: var(--shadow);
  padding: 1.1rem;
}

.table-scroll {
  position: relative;
  overflow-x: auto;
}

.data-table {
  width: 100%;
  border-collapse: collapse;
  min-width: 42rem;
}

.data-table caption {
  text-align: left;
  font-weight: 700;
  padding-bottom: 0.8rem;
}

.data-table th,
.data-table td {
  text-align: left;
  vertical-align: top;
  padding: 0.8rem 0.7rem;
  border-top: 1px solid var(--line);
}

.data-table th {
  font-size: 0.92rem;
}

.fact-grid,
.step-grid,
.source-list {
  display: grid;
  gap: 0.9rem;
}

.fact-grid {
  grid-template-columns: repeat(3, minmax(0, 1fr));
  margin-top: 1rem;
}

.fact-grid article,
.step-grid article,
.author-card,
.policy {
  background: var(--sand);
  border: 1px solid var(--line);
  border-radius: 1rem;
  padding: 1rem;
}

.fact-grid p,
.step-grid p,
.policy p,
.author-card p {
  margin: 0.35rem 0 0;
}

.domain-layout {
  display: grid;
  grid-template-columns: minmax(0, 0.9fr) minmax(0, 1.1fr);
  gap: 1rem;
}

.domain-form {
  display: grid;
  gap: 0.7rem;
}

label {
  font-weight: 700;
}

input,
textarea {
  width: 100%;
  border: 1px solid #cbbfae;
  background: #fff;
  color: var(--ink);
  border-radius: 0.8rem;
  padding: 0.8rem 0.9rem;
  font: inherit;
  font-size: 1rem;
}

textarea {
  min-height: 8rem;
  resize: vertical;
}

.hint {
  margin: 0;
  color: var(--ink-soft);
  font-size: 0.95rem;
}

.result {
  min-height: 16rem;
}

.result[data-state="uygun"] {
  box-shadow: inset 4px 0 0 var(--ok);
}

.result[data-state="uyari"] {
  box-shadow: inset 4px 0 0 var(--warn);
}

.result[data-state="gecersiz"] {
  box-shadow: inset 4px 0 0 var(--bad);
}

.result h3 {
  margin-top: 0;
}

.result dl {
  display: grid;
  grid-template-columns: 9rem 1fr;
  gap: 0.45rem 0.8rem;
  margin: 0;
}

.result dt {
  font-weight: 700;
}

.result dd {
  margin: 0;
}

.check-list {
  margin: 0.8rem 0 0;
  padding-left: 1.1rem;
}

.step-grid {
  grid-template-columns: 1fr;
}

.checklist {
  margin: 0.4rem 0 0;
  padding-left: 1.15rem;
}

.author-layout {
  display: grid;
  grid-template-columns: minmax(0, 0.85fr) minmax(0, 1.15fr);
  gap: 1rem;
}

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

.source-list a {
  font-weight: 700;
}

.site-footer {
  background: var(--pine);
  color: #f4f1ea;
  padding: 2.5rem 0 2rem;
}

.site-footer a {
  color: #f3d7c4;
}

.footer-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1rem;
}

.site-footer .policy {
  background: rgba(255, 255, 255, 0.04);
  border-color: rgba(244, 241, 234, 0.18);
}

.site-footer h2 {
  font-size: 1.35rem;
}

.legal-form {
  display: grid;
  gap: 0.7rem;
}

.footnote {
  margin-top: 1rem;
  color: #d9e4dd;
  font-size: 0.92rem;
}

@media (max-width: 860px) {
  .nav-toggle {
    display: inline-flex;
  }

  .site-nav {
    display: none;
    position: absolute;
    top: var(--header);
    left: 0;
    right: 0;
    background: var(--paper);
    border-bottom: 1px solid var(--line);
    padding: 0.6rem 1rem 1rem;
  }

  .site-nav.is-open {
    display: block;
  }

  .site-nav ul {
    flex-direction: column;
  }

  .hero-grid,
  .domain-layout,
  .author-layout,
  .fact-grid,
  .footer-grid {
    grid-template-columns: 1fr;
  }

  .data-table {
    min-width: 0;
  }

  .data-table thead {
    position: absolute;
    width: 1px;
    height: 1px;
    overflow: hidden;
    clip: rect(0 0 0 0);
  }

  .data-table tr {
    display: block;
    border-top: 1px solid var(--line);
    padding: 0.4rem 0 0.7rem;
  }

  .data-table td {
    display: grid;
    grid-template-columns: 8.5rem 1fr;
    gap: 0.4rem;
    border: 0;
    padding: 0.28rem 0;
  }

  .data-table td::before {
    content: attr(data-label);
    font-weight: 700;
  }
}

@media (max-width: 560px) {
  .result dl,
  .data-table td {
    grid-template-columns: 1fr;
  }
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }
}