:root {
  --bg: #f8f7ff;
  --bg-soft: #f0eeff;
  --surface: #ffffff;
  --ink: #171725;
  --muted: #6b6b7a;
  --line: #ddd8f3;
  --primary: #6c5ce7;
  --primary-dark: #4734d9;
  --accent: #ff7675;
  --shadow: 0 18px 40px rgba(41, 33, 86, 0.10);
  --radius: 18px;
  --font: "Plus Jakarta Sans", "Segoe UI", sans-serif;
  --display: "Fraunces", Georgia, serif;
}

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

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-height: 100vh;
  font-family: var(--font);
  color: var(--ink);
  background:
    radial-gradient(circle at top left, rgba(108, 92, 231, 0.14), transparent 34%),
    radial-gradient(circle at bottom right, rgba(255, 118, 117, 0.10), transparent 30%),
    linear-gradient(180deg, var(--bg) 0%, #efeaff 100%);
  line-height: 1.65;
}

a {
  color: var(--primary-dark);
  text-decoration-thickness: 1px;
  text-underline-offset: 3px;
}

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

.home {
  min-height: 100vh;
  display: grid;
  place-items: center;
  padding: 32px 20px;
}

.home-card {
  width: min(100%, 520px);
  text-align: center;
}

.mark {
  width: 72px;
  height: 72px;
  margin: 0 auto 18px;
  border-radius: 20px;
  box-shadow: var(--shadow);
}

.home h1 {
  margin: 0;
  font-family: var(--display);
  font-size: clamp(2.4rem, 6vw, 3.2rem);
  font-weight: 700;
  letter-spacing: -0.03em;
  color: var(--primary-dark);
}

.home .tagline {
  margin: 10px 0 0;
  color: var(--muted);
  font-size: 1.05rem;
}

.nav-links {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 12px;
  margin: 36px 0 48px;
}

.nav-links a {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 48px;
  padding: 12px 22px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: var(--surface);
  color: var(--primary-dark);
  text-decoration: none;
  font-weight: 650;
  box-shadow: 0 8px 18px rgba(41, 33, 86, 0.04);
  transition: transform 0.18s ease, border-color 0.18s ease, box-shadow 0.18s ease;
}

.nav-links a:hover {
  transform: translateY(-1px);
  border-color: #c7bff5;
  box-shadow: var(--shadow);
  color: var(--primary-dark);
}

.footer-note {
  margin: 0;
  color: var(--muted);
  font-size: 0.88rem;
}

.page {
  width: min(100%, 820px);
  margin: 0 auto;
  padding: 28px 20px 64px;
}

.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  margin-bottom: 28px;
}

.brand-link {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  color: inherit;
  text-decoration: none;
  font-weight: 700;
}

.brand-link img {
  width: 42px;
  height: 42px;
  border-radius: 12px;
}

.back-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 8px 14px;
  border-radius: 999px;
  border: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.72);
  text-decoration: none;
  color: var(--muted);
  font-size: 0.92rem;
  font-weight: 600;
}

.hero-panel,
.info-card,
.section {
  background: rgba(255, 255, 255, 0.86);
  border: 1px solid rgba(221, 216, 243, 0.9);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}

.hero-panel {
  padding: 28px 26px;
  margin-bottom: 18px;
}

.hero-panel .eyebrow {
  margin: 0 0 10px;
  color: var(--primary);
  font-size: 0.84rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.hero-panel h1 {
  margin: 0;
  font-family: var(--display);
  font-size: clamp(1.8rem, 4vw, 2.4rem);
  line-height: 1.15;
  letter-spacing: -0.03em;
}

.hero-panel .lead {
  margin: 12px 0 0;
  color: var(--muted);
  font-size: 1.02rem;
}

.meta {
  margin-top: 18px;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 12px;
  border-radius: 999px;
  background: var(--bg-soft);
  color: var(--muted);
  font-size: 0.88rem;
  font-weight: 600;
}

.info-grid {
  display: grid;
  gap: 12px;
  margin: 18px 0 28px;
}

@media (min-width: 720px) {
  .info-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

.info-card {
  padding: 18px 18px 16px;
}

.info-card .label {
  margin: 0 0 6px;
  color: var(--muted);
  font-size: 0.82rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

.info-card .value {
  margin: 0;
  font-size: 1.02rem;
  font-weight: 650;
}

.info-card a {
  word-break: break-word;
}

.intro {
  margin: 0 0 24px;
  padding: 18px 20px;
  border-left: 4px solid var(--primary);
  background: rgba(108, 92, 231, 0.08);
  border-radius: 0 14px 14px 0;
}

.section {
  padding: 22px 22px 20px;
  margin-bottom: 14px;
}

.section-head {
  display: flex;
  gap: 14px;
  align-items: flex-start;
  margin-bottom: 12px;
}

.num {
  flex: 0 0 auto;
  width: 34px;
  height: 34px;
  display: grid;
  place-items: center;
  border-radius: 11px;
  background: var(--primary);
  color: #fff;
  font-weight: 800;
}

.section h2 {
  margin: 2px 0 0;
  font-size: 1.18rem;
  line-height: 1.3;
}

.section p,
.section li {
  color: #3d3a55;
}

.section ul {
  margin: 10px 0 0;
  padding-left: 1.15rem;
}

.section li + li {
  margin-top: 6px;
}

.page-footer {
  margin-top: 36px;
  padding-top: 18px;
  border-top: 1px solid var(--line);
  color: var(--muted);
  font-size: 0.9rem;
}

.page-footer strong {
  color: var(--ink);
}

.invite-wrap {
  min-height: 100vh;
  display: grid;
  place-items: center;
  padding: 32px 20px;
}

.invite-card {
  width: min(92vw, 440px);
  background: rgba(255, 255, 255, 0.92);
  border: 1px solid var(--line);
  border-radius: 28px;
  padding: 28px;
  box-shadow: var(--shadow);
  text-align: center;
}

.invite-card h1 {
  margin: 0 0 8px;
  font-family: var(--display);
  font-size: 1.7rem;
}

.invite-card p {
  margin: 0 0 18px;
  color: var(--muted);
}

.invite-card a,
.invite-card button {
  appearance: none;
  display: block;
  width: 100%;
  box-sizing: border-box;
  border: 0;
  border-radius: 16px;
  padding: 14px 16px;
  margin-top: 10px;
  background: var(--primary);
  color: white;
  font-size: 16px;
  font-weight: 700;
  text-decoration: none;
  cursor: pointer;
  font-family: inherit;
}

.invite-card a.secondary,
.invite-card button.secondary {
  background: white;
  color: var(--primary);
  border: 1px solid rgba(108, 92, 231, 0.24);
}

.invite-card small {
  display: block;
  margin-top: 18px;
  color: #8b8b98;
}

.lang-switch {
  display: inline-flex;
  gap: 4px;
  padding: 4px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.8);
}

.lang-switch button {
  appearance: none;
  border: 0;
  background: transparent;
  color: var(--muted);
  font: inherit;
  font-size: 0.82rem;
  font-weight: 700;
  padding: 8px 12px;
  border-radius: 999px;
  cursor: pointer;
}

.lang-switch button[aria-pressed="true"] {
  background: var(--primary);
  color: #fff;
}

html[data-lang="en"] .lang-tr {
  display: none !important;
}

html[data-lang="tr"] .lang-en {
  display: none !important;
}

.home-top {
  position: absolute;
  top: 20px;
  right: 20px;
}

.topbar .lang-switch {
  margin-left: auto;
}

@media (max-width: 560px) {
  .topbar .lang-switch {
    margin-left: 0;
  }
}