:root {
  color-scheme: light;
  --brand: #f5ad18;
  --brand-strong: #bc7600;
  --accent: #1d6f7c;
  --accent-soft: #dff4f6;
  --background: #f8f7f2;
  --surface: #ffffff;
  --surface-muted: #f0eee6;
  --text: #1d252c;
  --muted: #63707a;
  --border: #ddd8c9;
  --shadow: 0 18px 50px rgba(29, 37, 44, 0.12);
  --max-width: 1120px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background:
    radial-gradient(circle at 18% 8%, rgba(29, 111, 124, 0.12), transparent 30rem),
    linear-gradient(180deg, var(--background), var(--surface-muted));
  color: var(--text);
  font-family: Inter, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  line-height: 1.6;
}

body::selection {
  background: var(--brand);
  color: #111;
}

a {
  color: inherit;
}

img {
  max-width: 100%;
  display: block;
}

.skip-link {
  position: absolute;
  left: 1rem;
  top: 1rem;
  z-index: 20;
  transform: translateY(-150%);
  background: var(--text);
  color: var(--background);
  padding: 0.65rem 0.85rem;
  border-radius: 8px;
  text-decoration: none;
}

.skip-link:focus {
  transform: translateY(0);
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: center;
  gap: 1rem;
  width: min(100% - 2rem, var(--max-width));
  margin: 0 auto;
  padding: 0.85rem 0;
  backdrop-filter: blur(18px);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 0.65rem;
  color: var(--text);
  font-weight: 800;
  text-decoration: none;
}

.brand img {
  width: 42px;
  height: 42px;
  object-fit: contain;
}

.site-nav {
  justify-self: center;
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 0.35rem;
  padding: 0.35rem;
  border: 1px solid color-mix(in srgb, var(--border), transparent 15%);
  border-radius: 8px;
  background: color-mix(in srgb, var(--surface), transparent 10%);
  box-shadow: 0 8px 30px rgba(29, 37, 44, 0.08);
}

.site-nav a {
  min-height: 38px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.45rem 0.8rem;
  border-radius: 6px;
  color: var(--muted);
  font-size: 0.92rem;
  font-weight: 700;
  text-decoration: none;
  transition: background 160ms ease, color 160ms ease;
}

.site-nav a:hover,
.site-nav a:focus-visible,
.site-nav a[aria-current="page"] {
  background: var(--accent-soft);
  color: var(--text);
  outline: none;
}

.language-switcher {
  display: inline-grid;
  grid-template-columns: repeat(2, minmax(42px, 1fr));
  gap: 0.25rem;
  padding: 0.25rem;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: color-mix(in srgb, var(--surface), transparent 4%);
  box-shadow: 0 8px 25px rgba(29, 37, 44, 0.08);
}

.language-switcher button {
  min-width: 42px;
  min-height: 38px;
  border: 0;
  border-radius: 6px;
  background: transparent;
  color: var(--muted);
  cursor: pointer;
  font: inherit;
  font-size: 0.9rem;
  font-weight: 800;
}

.language-switcher button[aria-pressed="true"] {
  background: var(--accent-soft);
  color: var(--text);
}

.language-switcher button:focus-visible,
.button:focus-visible,
.store-link:focus-visible,
.back-link:focus-visible {
  outline: 3px solid color-mix(in srgb, var(--accent), transparent 40%);
  outline-offset: 3px;
}

.language-panel[hidden] {
  display: none;
}

[data-lang-inline] {
  display: none;
}

body[data-language="tr"] [data-lang-panel="en"],
body[data-language="en"] [data-lang-panel="tr"] {
  display: none;
}

body[data-language="tr"] [data-lang-inline="en"],
body[data-language="en"] [data-lang-inline="tr"] {
  display: none;
}

body[data-language="tr"] [data-lang-inline="tr"],
body[data-language="en"] [data-lang-inline="en"] {
  display: inline;
}

.hero {
  min-height: min(700px, 78svh);
  position: relative;
  display: grid;
  align-items: center;
  overflow: hidden;
  border-top: 1px solid transparent;
}

.hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background:
    linear-gradient(90deg, color-mix(in srgb, var(--background), transparent 4%) 0%, color-mix(in srgb, var(--background), transparent 12%) 45%, color-mix(in srgb, var(--background), transparent 45%) 100%),
    url("duck-logo.png") right 8% center / min(46vw, 520px) auto no-repeat;
  opacity: 0.95;
}

.hero::after {
  content: "";
  position: absolute;
  inset: auto 0 0;
  height: 1px;
  background: var(--border);
}

.hero__content {
  position: relative;
  z-index: 1;
  width: min(100% - 2rem, var(--max-width));
  margin: 0 auto;
  padding: clamp(3.5rem, 8vw, 6.5rem) 0;
}

.eyebrow {
  margin: 0 0 0.8rem;
  color: var(--accent);
  font-size: 0.78rem;
  font-weight: 800;
  letter-spacing: 0;
  text-transform: uppercase;
}

h1,
h2,
h3,
p {
  overflow-wrap: anywhere;
}

h1,
h2,
h3 {
  margin: 0;
  line-height: 1.05;
}

h1 {
  max-width: 10ch;
  font-size: clamp(4rem, 11vw, 8.5rem);
  font-weight: 800;
}

h2 {
  max-width: 13ch;
  font-size: clamp(2rem, 5vw, 4rem);
  font-weight: 800;
}

h3 {
  font-size: 1.2rem;
}

.hero__lead {
  max-width: 620px;
  margin: 1.2rem 0 0;
  color: var(--muted);
  font-size: clamp(1.1rem, 2vw, 1.35rem);
}

.hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin-top: 2rem;
}

.button {
  min-height: 48px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.75rem 1.05rem;
  border: 1px solid transparent;
  border-radius: 8px;
  font-weight: 800;
  text-decoration: none;
}

.button--primary {
  background: var(--text);
  color: var(--background);
}

.button--secondary {
  background: var(--surface);
  border-color: var(--border);
  color: var(--text);
}

.section {
  width: min(100% - 2rem, var(--max-width));
  margin: 0 auto;
  padding: clamp(3rem, 6vw, 5rem) 0;
}

.section--tight {
  padding-top: clamp(2.5rem, 5vw, 4rem);
}

.section--split {
  display: grid;
  grid-template-columns: minmax(0, 0.85fr) minmax(320px, 1.15fr);
  gap: clamp(2rem, 5vw, 5rem);
  align-items: start;
  border-top: 1px solid var(--border);
}

.section__header {
  display: grid;
  gap: 0.2rem;
  margin-bottom: 1.4rem;
}

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

.feature-card,
.content-panel,
.embed-panel,
.store-link {
  border: 1px solid var(--border);
  border-radius: 8px;
  background: color-mix(in srgb, var(--surface), transparent 3%);
  box-shadow: var(--shadow);
}

.feature-card {
  min-height: 250px;
  display: flex;
  flex-direction: column;
  gap: 0.9rem;
  padding: 1.3rem;
}

.feature-card__icon {
  width: 52px;
  height: 52px;
  display: inline-grid;
  place-items: center;
  border-radius: 8px;
  background: var(--accent-soft);
  color: var(--accent);
  font-size: 0.86rem;
  font-weight: 800;
}

.feature-card p,
.content-panel p,
.content-panel li,
.store-card p {
  color: var(--muted);
}

.feature-card p {
  margin: 0;
}

.steps {
  display: grid;
  gap: 0.75rem;
  margin: 0;
  padding: 0;
  list-style: none;
}

.steps li {
  display: grid;
  grid-template-columns: 42px 1fr;
  gap: 0.85rem;
  align-items: center;
  min-height: 72px;
  padding: 1rem;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: var(--surface);
}

.steps li > span {
  width: 42px;
  height: 42px;
  display: inline-grid;
  place-items: center;
  border-radius: 50%;
  background: var(--brand);
  color: #171717;
  font-weight: 800;
}

.steps p {
  min-width: 0;
  margin: 0;
  color: var(--text);
  font-weight: 700;
}

.embed-panel {
  min-height: 180px;
  padding: 1rem;
  overflow: hidden;
}

.content-hero {
  width: min(100% - 2rem, 860px);
  margin: 0 auto;
  padding: clamp(3rem, 7vw, 5rem) 0 1.5rem;
  text-align: center;
}

.content-hero h1 {
  max-width: none;
  font-size: clamp(2.4rem, 7vw, 4.8rem);
}

.content-hero p {
  max-width: 640px;
  margin: 1rem auto 0;
  color: var(--muted);
}

.content-panel {
  width: min(100% - 2rem, 860px);
  margin: 0 auto;
  padding: clamp(1.4rem, 4vw, 2.2rem);
}

.content-panel + .content-panel {
  margin-top: 1rem;
}

.content-panel h2 {
  max-width: none;
  margin-top: 2rem;
  font-size: 1.25rem;
}

.content-panel h2:first-child {
  margin-top: 0;
}

.content-panel p,
.content-panel ul {
  margin: 0.6rem 0 0;
}

.content-panel ul {
  padding-left: 1.2rem;
}

.content-panel strong {
  color: var(--text);
}

.support-list {
  display: grid;
  gap: 1rem;
  margin-top: 1.3rem;
}

.support-item {
  padding-top: 1rem;
  border-top: 1px solid var(--border);
}

.support-item:first-child {
  padding-top: 0;
  border-top: 0;
}

.store-page {
  min-height: 100svh;
  display: grid;
  place-items: center;
  padding: 1rem;
}

.store-card {
  width: min(100%, 560px);
  padding: clamp(1.5rem, 6vw, 3rem);
  border: 1px solid var(--border);
  border-radius: 8px;
  background: var(--surface);
  box-shadow: var(--shadow);
  text-align: center;
}

.store-card img {
  width: 120px;
  height: 120px;
  margin: 0 auto 1rem;
  object-fit: contain;
}

.store-card h1 {
  max-width: none;
  font-size: clamp(2.4rem, 8vw, 4rem);
}

.store-links {
  display: grid;
  gap: 0.75rem;
  margin-top: 1.5rem;
}

.store-link {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  padding: 1rem;
  color: var(--text);
  font-weight: 800;
  text-decoration: none;
}

.back-link {
  display: inline-flex;
  margin-top: 1.3rem;
  color: var(--muted);
  font-weight: 700;
  text-decoration: none;
}

.site-footer {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  width: min(100% - 2rem, var(--max-width));
  margin: 0 auto;
  padding: 2rem 0;
  border-top: 1px solid var(--border);
  color: var(--muted);
  font-size: 0.92rem;
}

.site-footer p {
  margin: 0;
}

.site-footer nav {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
}

.site-footer a {
  color: var(--muted);
  font-weight: 700;
  text-decoration: none;
}

@media (max-width: 820px) {
  .site-header {
    grid-template-columns: 1fr auto;
  }

  .site-nav {
    grid-column: 1 / -1;
    justify-self: stretch;
    overflow-x: auto;
  }

  .hero {
    min-height: 74svh;
  }

  .hero::before {
    background:
      linear-gradient(180deg, color-mix(in srgb, var(--background), transparent 2%) 0%, color-mix(in srgb, var(--background), transparent 18%) 55%, color-mix(in srgb, var(--background), transparent 35%) 100%),
      url("duck-logo.png") center bottom 8% / min(72vw, 360px) auto no-repeat;
    opacity: 0.9;
  }

  .hero__content {
    align-self: start;
    padding-top: 3rem;
  }

  .feature-grid,
  .section--split {
    grid-template-columns: 1fr;
  }

  .feature-card {
    min-height: auto;
  }
}

@media (max-width: 520px) {
  .brand span {
    font-size: 0.95rem;
  }

  .site-nav {
    justify-content: flex-start;
  }

  .site-nav a {
    padding-inline: 0.7rem;
    font-size: 0.86rem;
  }

  .hero__actions,
  .button {
    width: 100%;
  }

  .site-footer {
    align-items: flex-start;
    flex-direction: column;
  }
}