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

:root {
  --sek-text: #1b1430;
  --sek-muted: rgba(27, 20, 48, 0.65);
  --sek-surface: rgba(255, 255, 255, 0.86);
  --sek-border: rgba(77, 30, 130, 0.12);
  --sek-purple: rgba(77, 30, 130, 0.86);
  --sek-purple-light: #f4efff;
  --sek-field-bg: #ede5ff;
  --sek-yellow: #ffd84d;
  --sek-pink: #ff2daa;
  --sek-radius: 22px;
  --sek-radius-sm: 14px;
}

html {
  font-family: 'Inter', system-ui, -apple-system, sans-serif;
  color: var(--sek-text);
  background: var(--sek-purple-light);
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
}

body {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  background: radial-gradient(
    1200px 700px at 15% 10%,
    #ffffff 0%,
    #fbf8ff 40%,
    #f4efff 100%
  );
}

.container {
  max-width: 980px;
  margin: 0 auto;
  padding: 0 24px;
  width: 100%;
}

/* ─── Header ─── */
.header {
  padding: 16px 0;
  background: rgba(255, 255, 255, 0.7);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--sek-border);
  position: sticky;
  top: 0;
  z-index: 100;
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.logo {
  font-size: 1.35rem;
  font-weight: 900;
  color: var(--sek-text);
  text-decoration: none;
  letter-spacing: 0.2px;
}

.header-cta {
  display: inline-flex;
  align-items: center;
  padding: 8px 20px;
  border-radius: 999px;
  background: linear-gradient(
    90deg,
    var(--sek-yellow) 0%,
    var(--sek-pink) 100%
  );
  color: var(--sek-text);
  font-size: 0.85rem;
  font-weight: 700;
  text-decoration: none;
  transition: transform 0.06s ease, box-shadow 0.15s ease;
}

.header-cta:hover {
  transform: translateY(-1px);
  box-shadow: 0 4px 14px rgba(255, 45, 170, 0.25);
}

.header-cta:active {
  transform: translateY(1px);
}

/* ─── Hero ─── */
.hero {
  padding: 80px 0 64px;
  text-align: center;
}

.hero-inner {
  display: flex;
  flex-direction: column;
  align-items: center;
}

.hero-badge {
  display: inline-block;
  padding: 6px 16px;
  border-radius: 999px;
  background: rgba(77, 30, 130, 0.08);
  color: var(--sek-purple);
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 0.3px;
  margin-bottom: 24px;
}

.hero h1 {
  font-size: clamp(2rem, 5vw, 3rem);
  font-weight: 900;
  line-height: 1.15;
  letter-spacing: -0.5px;
  margin-bottom: 20px;
  color: var(--sek-text);
}

.hero-sub {
  font-size: 1.1rem;
  color: var(--sek-muted);
  max-width: 520px;
  margin: 0 auto 36px;
  line-height: 1.65;
}

.hero-sub strong {
  color: var(--sek-text);
  font-weight: 700;
}

.hero-actions {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
  justify-content: center;
}

/* ─── Buttons ─── */
.btn-primary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  height: 48px;
  padding: 0 32px;
  border: none;
  border-radius: 999px;
  background: linear-gradient(
    90deg,
    var(--sek-yellow) 0%,
    var(--sek-pink) 100%
  );
  color: var(--sek-text);
  font-size: 1rem;
  font-weight: 700;
  font-family: inherit;
  cursor: pointer;
  text-decoration: none;
  transition: transform 0.06s ease, box-shadow 0.15s ease;
  white-space: nowrap;
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(255, 45, 170, 0.25);
}

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

/* ─── Section shared styles ─── */
.section-sub {
  text-align: center;
  color: var(--sek-muted);
  font-size: 0.95rem;
  margin-top: -24px;
  margin-bottom: 40px;
  line-height: 1.5;
}

/* ─── Features ─── */
.features {
  padding: 72px 0;
}

.features h2 {
  text-align: center;
  font-size: 1.7rem;
  font-weight: 800;
  margin-bottom: 32px;
  color: var(--sek-text);
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}

.feature-card {
  padding: 32px 24px;
  background: var(--sek-surface);
  border: 1px solid var(--sek-border);
  border-radius: var(--sek-radius);
  box-shadow: 0 8px 20px -12px rgba(27, 20, 48, 0.12);
  text-align: center;
  transition: transform 0.15s ease, box-shadow 0.15s ease;
}

.feature-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 14px 32px -12px rgba(27, 20, 48, 0.18);
}

.feature-icon {
  width: 52px;
  height: 52px;
  margin: 0 auto 18px;
  background: rgba(77, 30, 130, 0.08);
  color: var(--sek-purple);
  border-radius: 16px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.feature-card h3 {
  font-size: 1.05rem;
  font-weight: 700;
  margin-bottom: 10px;
  color: var(--sek-text);
}

.feature-card p {
  font-size: 0.9rem;
  color: var(--sek-muted);
  line-height: 1.55;
}

/* ─── Levels ─── */
.levels {
  padding: 72px 0;
}

.levels h2 {
  text-align: center;
  font-size: 1.7rem;
  font-weight: 800;
  margin-bottom: 32px;
  color: var(--sek-text);
}

.levels-grid {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 12px;
}

.level-badge {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 68px;
  padding: 12px 22px;
  background: var(--sek-surface);
  border: 1.5px solid var(--sek-border);
  border-radius: var(--sek-radius-sm);
  font-weight: 700;
  font-size: 0.95rem;
  color: var(--sek-purple);
  box-shadow: 0 4px 12px -6px rgba(27, 20, 48, 0.1);
  transition: all 0.15s ease;
  cursor: default;
}

.level-badge:hover {
  background: rgba(77, 30, 130, 0.08);
  border-color: rgba(77, 30, 130, 0.28);
  transform: translateY(-2px);
  box-shadow: 0 6px 18px -6px rgba(27, 20, 48, 0.16);
}

/* ─── Waitlist ─── */
.waitlist-section {
  padding: 72px 0;
}

.waitlist-card {
  max-width: 560px;
  margin: 0 auto;
  background: var(--sek-surface);
  border: 1px solid var(--sek-border);
  border-radius: var(--sek-radius);
  box-shadow: 0 12px 28px -16px rgba(27, 20, 48, 0.16);
  padding: 40px 32px;
  text-align: center;
}

.waitlist-card h2 {
  font-size: 1.5rem;
  font-weight: 800;
  margin-bottom: 10px;
  color: var(--sek-text);
}

.waitlist-sub {
  font-size: 0.92rem;
  color: var(--sek-muted);
  line-height: 1.55;
  margin-bottom: 24px;
}

.waitlist-form {
  display: flex;
  gap: 10px;
}

.waitlist-form input {
  flex: 1;
  padding: 12px 16px;
  border: 1.5px solid var(--sek-border);
  border-radius: var(--sek-radius-sm);
  background: var(--sek-field-bg);
  font-size: 0.95rem;
  font-family: inherit;
  color: var(--sek-text);
  outline: none;
  transition: border-color 0.15s ease, background 0.15s ease;
}

.waitlist-form input::placeholder {
  color: rgba(27, 20, 48, 0.32);
}

.waitlist-form input:focus {
  border-color: rgba(77, 30, 130, 0.5);
  background: #e6d8ff;
}

.waitlist-form button {
  padding: 12px 24px;
  background: linear-gradient(
    90deg,
    var(--sek-yellow) 0%,
    var(--sek-pink) 100%
  );
  color: var(--sek-text);
  border: none;
  border-radius: 999px;
  font-size: 0.95rem;
  font-weight: 700;
  font-family: inherit;
  cursor: pointer;
  transition: transform 0.06s ease, box-shadow 0.15s ease;
  white-space: nowrap;
}

.waitlist-form button:hover {
  transform: translateY(-1px);
  box-shadow: 0 4px 14px rgba(255, 45, 170, 0.25);
}

.waitlist-form button:active {
  transform: translateY(1px);
}

.waitlist-form button:disabled {
  opacity: 0.5;
  cursor: not-allowed;
  transform: none;
  box-shadow: none;
}

.form-message {
  margin-top: 14px;
  font-size: 0.88rem;
  font-weight: 600;
  line-height: 1.4;
}

.form-message.success {
  color: #27ae60;
}

.form-message.error {
  color: rgba(239, 68, 68, 0.9);
}

/* ─── Footer ─── */
.footer {
  margin-top: auto;
  padding: 32px 0;
  border-top: 1px solid var(--sek-border);
}

.footer-inner {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 6px;
}

.footer-brand {
  font-weight: 900;
  font-size: 1rem;
  color: var(--sek-text);
  letter-spacing: 0.2px;
}

.footer p {
  font-size: 0.8rem;
  color: var(--sek-muted);
}

/* ─── Responsive: tablet ─── */
@media (max-width: 768px) {
  .features-grid {
    grid-template-columns: 1fr;
    gap: 16px;
    max-width: 400px;
    margin: 0 auto;
  }

  .hero {
    padding: 56px 0 48px;
  }

  .hero h1 {
    font-size: 1.8rem;
  }
}

/* ─── Responsive: mobile ─── */
@media (max-width: 500px) {
  .hero {
    padding: 40px 0 36px;
  }

  .hero h1 {
    font-size: 1.55rem;
  }

  .hero-sub {
    font-size: 0.95rem;
  }

  .waitlist-form {
    flex-direction: column;
  }

  .waitlist-form button {
    width: 100%;
    padding: 14px;
  }

  .waitlist-card {
    padding: 28px 20px;
  }

  .level-badge {
    min-width: 56px;
    padding: 10px 16px;
    font-size: 0.85rem;
  }

  .features,
  .levels,
  .waitlist-section {
    padding: 48px 0;
  }

  .section-sub {
    margin-top: -16px;
    margin-bottom: 28px;
  }
}