:root {
  --bg: #07111f;
  --bg-soft: #0d1b31;
  --surface: #ffffff;
  --surface-soft: #f4f8ff;
  --text: #0f1d2e;
  --muted: #637592;
  --line: #d7e2f2;
  --brand: #2f88ff;
  --brand-strong: #1f6fda;
  --brand-ink: #0f2c54;
  --focus: #ffb347;
  --radius: 16px;
  --shadow: 0 14px 32px rgba(14, 31, 53, 0.12);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: "Aptos", "Segoe UI", "Helvetica Neue", Helvetica, sans-serif;
  color: var(--text);
  background: linear-gradient(180deg, var(--bg) 0%, var(--bg-soft) 38%, #f2f7ff 38%, #f7fbff 100%);
  line-height: 1.5;
}

a {
  color: inherit;
  text-decoration: none;
}

.container {
  width: min(1120px, 92%);
  margin: 0 auto;
}

.site-header {
  position: sticky;
  top: 0;
  border-bottom: 1px solid rgba(174, 197, 231, 0.28);
  backdrop-filter: blur(10px);
  background: rgba(7, 17, 31, 0.7);
  z-index: 12;
}

.header-inner,
.footer-inner,
.final-cta-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}

.header-inner {
  padding: 0.95rem 0;
}

.brand {
  color: #f4f8ff;
  font-weight: 700;
  letter-spacing: 0.2px;
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 0.65rem;
}

.lang-label {
  color: #b5c9e8;
  font-size: 0.9rem;
}

.lang-select {
  border: 1px solid rgba(196, 217, 245, 0.42);
  background: rgba(255, 255, 255, 0.1);
  color: #eef5ff;
  border-radius: 10px;
  padding: 0.45rem 0.65rem;
  font-weight: 600;
}

.lang-select option {
  color: #0f1d2e;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 12px;
  padding: 0.76rem 1.05rem;
  font-weight: 700;
  border: 1px solid transparent;
  transition: transform 0.2s ease, box-shadow 0.2s ease, background-color 0.2s ease;
}

.btn:hover {
  transform: translateY(-1px);
}

.btn-primary {
  color: #ffffff;
  background: linear-gradient(135deg, var(--brand) 0%, #48a0ff 100%);
  box-shadow: 0 10px 22px rgba(47, 136, 255, 0.26);
}

.btn-primary:hover {
  background: linear-gradient(135deg, var(--brand-strong) 0%, #3b8fe5 100%);
}

.btn-secondary {
  background: #ffffff;
  border-color: var(--line);
}

.btn-secondary:hover {
  box-shadow: var(--shadow);
}

.hero {
  padding: 4.2rem 0 2.3rem;
}

/* BYMSA Patch: Premium dark hero ve dashboard preview ile modern ilk izlenim */
.hero-layout {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1rem;
}

.hero-copy,
.hero-preview {
  border-radius: 20px;
  border: 1px solid rgba(191, 213, 243, 0.28);
  box-shadow: 0 22px 44px rgba(6, 16, 30, 0.35);
}

.hero-copy {
  padding: clamp(1.2rem, 3vw, 2rem);
  background: linear-gradient(140deg, rgba(255, 255, 255, 0.13) 0%, rgba(255, 255, 255, 0.03) 100%);
}

.eyebrow {
  margin: 0;
  color: #90bcff;
  font-weight: 700;
}

h1 {
  margin: 0.66rem 0 0.82rem;
  max-width: 17ch;
  color: #f2f7ff;
  font-size: clamp(1.9rem, 5vw, 3rem);
  line-height: 1.12;
}

.hero-sub {
  margin: 0;
  color: #c3d5f0;
  max-width: 60ch;
}

.hero-ctas {
  margin-top: 1.22rem;
  display: flex;
  flex-wrap: wrap;
  gap: 0.8rem;
}

.hero-points {
  margin: 1rem 0 0;
  padding: 0;
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  gap: 0.55rem;
}

.hero-points li {
  background: rgba(112, 166, 244, 0.16);
  border: 1px solid rgba(166, 199, 247, 0.42);
  color: #e3efff;
  border-radius: 999px;
  padding: 0.3rem 0.68rem;
  font-size: 0.84rem;
  font-weight: 600;
}

.hero-preview {
  padding: 1rem;
  background: linear-gradient(145deg, #ffffff 0%, #eef5ff 100%);
}

.preview-title {
  margin: 0 0 0.8rem;
  color: var(--brand-ink);
  font-weight: 700;
}

.preview-stat-row {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0.6rem;
}

.preview-stat {
  border: 1px solid var(--line);
  border-radius: 12px;
  background: #fbfdff;
  padding: 0.7rem;
  display: grid;
  gap: 0.35rem;
}

.preview-stat span {
  color: var(--muted);
  font-size: 0.83rem;
}

.preview-stat strong {
  color: var(--brand-ink);
}

.preview-feed {
  margin: 0.9rem 0;
  display: grid;
  gap: 0.5rem;
}

.feed-line {
  height: 10px;
  border-radius: 999px;
  background: linear-gradient(90deg, #dbe9ff 0%, #ecf4ff 100%);
}

.feed-line.short {
  width: 70%;
}

.feed-line.mid {
  width: 84%;
}

.preview-link {
  color: var(--brand-strong);
  font-weight: 700;
}

section {
  padding: 1.9rem 0;
}

h2 {
  margin-top: 0;
  margin-bottom: 1rem;
  font-size: clamp(1.3rem, 3vw, 2rem);
  color: #0f2d55;
}

.grid {
  display: grid;
  gap: 1rem;
}

.benefits-grid,
.pricing-grid {
  grid-template-columns: 1fr;
}

.card {
  background: linear-gradient(180deg, #ffffff 0%, #f9fcff 100%);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 1.2rem;
  box-shadow: var(--shadow);
}

.card h3 {
  margin-top: 0;
  margin-bottom: 0.4rem;
  color: #12325c;
}

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

.pricing-card {
  display: flex;
  flex-direction: column;
  gap: 0.85rem;
}

.pricing-card ul {
  margin: 0;
  padding-left: 1rem;
  color: var(--muted);
  display: grid;
  gap: 0.35rem;
}

/* BYMSA Patch: Pro kartini premium sekilde one cikariyor */
.featured {
  border-color: #9cc4ff;
  background: linear-gradient(180deg, #ffffff 0%, #eef6ff 100%);
  box-shadow: 0 16px 36px rgba(47, 136, 255, 0.2);
  transform: translateY(-4px);
}

.badge {
  margin: 0;
  display: inline-block;
  width: fit-content;
  padding: 0.2rem 0.56rem;
  border-radius: 999px;
  background: #dcebff;
  color: var(--brand-strong);
  font-size: 0.8rem;
  font-weight: 700;
}

.final-cta {
  margin: 1.2rem 0 0;
}

.final-cta-inner {
  background: linear-gradient(125deg, #0f2339 0%, #1a4b79 100%);
  color: #f3f8ff;
  border-radius: var(--radius);
  padding: 1.2rem;
  box-shadow: 0 18px 36px rgba(12, 28, 48, 0.24);
}

.site-footer {
  border-top: 1px solid var(--line);
  margin-top: 2rem;
  background: #f7fbff;
}

.footer-inner {
  padding: 1rem 0 1.2rem;
  color: var(--muted);
  font-size: 0.92rem;
  flex-wrap: wrap;
}

.reveal {
  opacity: 0;
  transform: translateY(16px);
  transition: opacity 0.55s ease, transform 0.55s ease;
}

.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}

:focus-visible {
  outline: 3px solid var(--focus);
  outline-offset: 2px;
}

@media (min-width: 760px) {
  .hero-layout {
    grid-template-columns: 1.2fr 0.8fr;
    align-items: stretch;
    gap: 1rem;
  }

  .benefits-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .pricing-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    align-items: stretch;
  }

  .final-cta-inner {
    padding: 1.35rem 1.5rem;
  }
}

@media (max-width: 640px) {
  .header-inner,
  .final-cta-inner,
  .footer-inner {
    flex-direction: column;
    align-items: flex-start;
  }

  .header-actions {
    width: 100%;
    justify-content: space-between;
    flex-wrap: wrap;
  }
}