* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

:root {
  --bg: #0e1117;
  --bg-card: #161b22;
  --border: #30363d;
  --text: #e6edf3;
  --text-muted: #7d8590;
  --accent: #58a6ff;
  --accent-hover: #79c0ff;
  --success: #3fb950;
  --danger: #f85149;
  --purple: #a371f7;
}

body {
  font-family:
    "Inter",
    system-ui,
    -apple-system,
    sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
  overflow-x: hidden;
}

a {
  color: var(--accent);
  text-decoration: none;
}
a:hover {
  text-decoration: underline;
}

.container {
  max-width: 960px;
  margin: 0 auto;
  padding: 0 1.5rem;
}

/* ── Nav ── */
nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: 56px;
  background: rgba(14, 17, 23, 0.85);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
  z-index: 100;
  display: flex;
  align-items: center;
}

nav .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
}

.nav-logo {
  font-size: 1.125rem;
  font-weight: 700;
  color: var(--text);
  text-decoration: none;
}

.nav-logo:hover {
  text-decoration: none;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 1.5rem;
}

.nav-links a {
  font-size: 0.875rem;
  color: var(--text-muted);
  font-weight: 500;
  transition: color 0.15s;
}

.nav-links a:hover {
  color: var(--text);
  text-decoration: none;
}

.btn-nav {
  display: inline-flex;
  align-items: center;
  padding: 0.45rem 1rem;
  background: var(--accent);
  color: var(--bg);
  border-radius: 6px;
  font-size: 0.8125rem;
  font-weight: 600;
  transition: background 0.15s;
  text-decoration: none;
}

.btn-nav:hover {
  background: var(--accent-hover);
  text-decoration: none;
}

.lang-switch {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 1.125rem;
}

.lang-switch a {
  opacity: 0.4;
  transition: opacity 0.15s;
  text-decoration: none;
}

.lang-switch a:hover {
  opacity: 0.7;
  text-decoration: none;
}
.lang-switch a.active {
  opacity: 1;
}

/* ── Hero ── */
.hero {
  padding: 10rem 0 6rem;
  text-align: center;
}

.hero-badge {
  display: inline-block;
  padding: 0.25rem 0.75rem;
  background: rgba(88, 166, 255, 0.1);
  border: 1px solid rgba(88, 166, 255, 0.2);
  border-radius: 999px;
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--accent);
  letter-spacing: 0.03em;
  margin-bottom: 1.5rem;
}

.hero h1 {
  font-size: 3.5rem;
  font-weight: 800;
  letter-spacing: -0.03em;
  line-height: 1.1;
  margin-bottom: 1rem;
}

.hero h1 .accent {
  color: var(--accent);
}

.hero p {
  font-size: 1.125rem;
  color: var(--text-muted);
  max-width: 520px;
  margin: 0 auto 2.5rem;
  line-height: 1.7;
}

.hero-buttons {
  display: flex;
  gap: 1rem;
  justify-content: center;
  flex-wrap: wrap;
}

.btn-hero {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.85rem 2rem;
  border-radius: 8px;
  font-size: 1rem;
  font-weight: 600;
  text-decoration: none;
  transition: all 0.15s;
}

.btn-hero:hover {
  text-decoration: none;
}

.btn-primary {
  background: var(--accent);
  color: var(--bg);
}

.btn-primary:hover {
  background: var(--accent-hover);
}

.btn-secondary {
  background: transparent;
  color: var(--text);
  border: 1px solid var(--border);
}

.btn-secondary:hover {
  border-color: var(--accent);
  color: var(--accent);
}

/* ── Screenshots ── */
.screenshots {
  padding: 0 0 5rem;
}

.screenshots-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1.5rem;
}

.screenshot-card {
  border-radius: 12px;
  overflow: hidden;
  border: 1px solid var(--border);
  background: var(--bg-card);
  transition:
    border-color 0.2s,
    transform 0.2s;
}

.screenshot-card:hover {
  border-color: var(--accent);
  transform: translateY(-2px);
}

.screenshot-card img {
  width: 100%;
  height: auto;
  display: block;
}

.screenshot-card .screenshot-label {
  padding: 0.75rem 1rem;
  font-size: 0.8125rem;
  font-weight: 600;
  color: var(--text-muted);
  text-align: center;
}

/* ── Features ── */
.features {
  padding: 5rem 0;
}

.section-label {
  text-align: center;
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--accent);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin-bottom: 0.75rem;
}

.section-title {
  text-align: center;
  font-size: 2rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  margin-bottom: 3rem;
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1.25rem;
}

.feature-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 2rem;
  transition: border-color 0.2s;
}

.feature-card:hover {
  border-color: var(--accent);
}

.feature-icon {
  font-size: 1.75rem;
  margin-bottom: 0.75rem;
}

.feature-card h3 {
  font-size: 1.0625rem;
  font-weight: 600;
  margin-bottom: 0.5rem;
}

.feature-card p {
  font-size: 0.875rem;
  color: var(--text-muted);
  line-height: 1.6;
}

/* ── How it works ── */
.how-it-works {
  padding: 5rem 0;
}

.steps {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
  margin-top: 3rem;
}

.step {
  text-align: center;
  padding: 2rem 1.5rem;
}

.step-number {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  background: rgba(88, 166, 255, 0.1);
  border: 1px solid rgba(88, 166, 255, 0.2);
  border-radius: 50%;
  font-size: 1rem;
  font-weight: 700;
  color: var(--accent);
  margin-bottom: 1rem;
}

.step h3 {
  font-size: 1rem;
  font-weight: 600;
  margin-bottom: 0.5rem;
}

.step p {
  font-size: 0.8125rem;
  color: var(--text-muted);
  line-height: 1.6;
}

/* ── Stats ── */
.stats {
  padding: 3rem 0;
}

.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1.25rem;
}

.stat-card {
  text-align: center;
  padding: 1.5rem;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 12px;
}

.stat-value {
  font-size: 1.75rem;
  font-weight: 800;
  color: var(--accent);
}

.stat-label {
  font-size: 0.75rem;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-top: 0.25rem;
}

/* ── CTA ── */
.cta {
  padding: 5rem 0 6rem;
  text-align: center;
}

.cta-box {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 4rem 2rem;
}

.cta-box h2 {
  font-size: 2rem;
  font-weight: 700;
  margin-bottom: 0.75rem;
}

.cta-box p {
  color: var(--text-muted);
  margin-bottom: 2rem;
  font-size: 1rem;
}

/* ── Footer ── */
footer {
  border-top: 1px solid var(--border);
  padding: 2rem 0;
  text-align: center;
  font-size: 0.8125rem;
  color: var(--text-muted);
}

/* ── Flag backgrounds ── */
.hero-flag-tr,
.hero-flag-br {
  position: relative;
  overflow: hidden;
}

.hero-flag-tr::before,
.hero-flag-br::before {
  content: "";
  position: absolute;
  inset: 0;
  background-size: cover;
  background-position: center;
  background-repeat: no-repeat;
  opacity: 0.07;
  pointer-events: none;
  z-index: 0;
  -webkit-mask-image: radial-gradient(
    ellipse 60% 80% at center,
    black 20%,
    transparent 80%
  );
  mask-image: radial-gradient(
    ellipse 60% 80% at center,
    black 20%,
    transparent 80%
  );
}

.hero-flag-tr::before {
  background-image: url("img/flag-tr.png");
}
.hero-flag-br::before {
  background-image: url("img/flag-br.png");
}

.hero-flag-tr .container,
.hero-flag-br .container {
  position: relative;
  z-index: 1;
}

/* ── Responsive ── */
@media (max-width: 768px) {
  .hero {
    padding: 8rem 0 4rem;
  }
  .hero h1 {
    font-size: 2.25rem;
  }
  .hero p {
    font-size: 1rem;
  }
  .features-grid {
    grid-template-columns: 1fr;
  }
  .steps {
    grid-template-columns: 1fr;
    gap: 0.5rem;
  }
  .screenshots-grid {
    grid-template-columns: 1fr;
  }
  .stats-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .cta-box {
    padding: 3rem 1.5rem;
  }
  .cta-box h2 {
    font-size: 1.5rem;
  }
  .nav-links a:not(.btn-nav):not(.lang-switch) {
    display: none;
  }
  .lang-switch {
    display: flex;
  }
}