:root {
  --bg: #f4f7fb;
  --surface: rgba(255, 255, 255, 0.88);
  --surface-strong: #ffffff;
  --text: #172033;
  --muted: #5f6b85;
  --primary: #4f46e5;
  --primary-dark: #3730a3;
  --secondary: #14b8a6;
  --accent: #f59e0b;
  --border: rgba(120, 136, 177, 0.2);
  --shadow: 0 24px 70px rgba(31, 41, 55, 0.12);
  --radius-lg: 28px;
  --radius-md: 18px;
  --radius-sm: 12px;
  --container: 1180px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: "Segoe UI", Arial, sans-serif;
  color: var(--text);
  background:
    radial-gradient(circle at top left, rgba(79, 70, 229, 0.18), transparent 28%),
    radial-gradient(circle at top right, rgba(20, 184, 166, 0.2), transparent 25%),
    linear-gradient(180deg, #f9fbff 0%, #eef3fb 100%);
  line-height: 1.6;
}

body::before {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  background-image:
    linear-gradient(rgba(255, 255, 255, 0.5) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.45) 1px, transparent 1px);
  background-size: 60px 60px;
  opacity: 0.2;
}

.container {
  width: min(calc(100% - 32px), var(--container));
  margin: 0 auto;
}

.hero {
  padding: 110px 0 70px;
  position: relative;
}

.hero__content {
  max-width: 780px;
  background: var(--surface);
  border: 1px solid rgba(255, 255, 255, 0.7);
  backdrop-filter: blur(18px);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow);
  padding: 56px;
}

.hero__badge,
.success-card__badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 10px 18px;
  border-radius: 999px;
  background: rgba(79, 70, 229, 0.1);
  color: var(--primary-dark);
  font-weight: 700;
  letter-spacing: 0.03em;
  margin-bottom: 18px;
}

h1,
h2,
h3 {
  margin-top: 0;
  line-height: 1.15;
}

h1 {
  font-size: clamp(2.4rem, 4vw, 4.4rem);
  margin-bottom: 18px;
}

h2 {
  font-size: clamp(1.8rem, 3vw, 2.6rem);
  margin-bottom: 12px;
}

.hero__text,
.section-title p,
.card p,
.price-card p,
.success-card p {
  color: var(--muted);
  font-size: 1.05rem;
}

.hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  margin-top: 30px;
}

.button {
  display: inline-flex;
  justify-content: center;
  align-items: center;
  padding: 15px 24px;
  border-radius: 14px;
  text-decoration: none;
  font-weight: 700;
  transition:
    transform 0.2s ease,
    box-shadow 0.2s ease,
    background 0.2s ease;
  border: none;
  cursor: pointer;
  font-size: 1rem;
}

.button:hover {
  transform: translateY(-2px);
}

.button--primary {
  background: linear-gradient(135deg, var(--primary), #6d63ff);
  color: #fff;
  box-shadow: 0 18px 35px rgba(79, 70, 229, 0.28);
}

.button--secondary {
  background: rgba(255, 255, 255, 0.75);
  color: var(--text);
  border: 1px solid var(--border);
}

.button--full {
  width: 100%;
}

.features,
.contact {
  padding: 30px 0 80px;
}

.section-title {
  text-align: center;
  max-width: 700px;
  margin: 0 auto 34px;
}

.section-title--left {
  text-align: left;
  margin: 0 0 24px;
}

.section-title--light h2,
.section-title--light p {
  color: #fff;
}

.features__grid,
.pricing__grid {
  display: grid;
  gap: 22px;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
}

.card,
.price-card,
.form,
.success-card {
  border-radius: var(--radius-md);
  background: var(--surface-strong);
  box-shadow: var(--shadow);
}

.card,
.price-card {
  padding: 28px;
  border: 1px solid var(--border);
}

.card h3,
.price-card h3 {
  margin-bottom: 10px;
  font-size: 1.3rem;
}

.pricing {
  margin: 20px 0 40px;
  padding: 80px 0;
  background: linear-gradient(135deg, #1f2a44 0%, #253a7a 55%, #1d7f74 100%);
}

.price-card__value {
  font-size: 2rem;
  font-weight: 800;
  color: var(--accent);
  margin: 8px 0 14px;
}

.contact {
  display: grid;
  gap: 28px;
  grid-template-columns: 1fr;
  align-items: start;
}

.form {
  padding: 30px;
  border: 1px solid var(--border);
}

.form__grid {
  display: grid;
  gap: 20px;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  margin-bottom: 24px;
}

.form__field {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.form__field--full {
  grid-column: 1 / -1;
}

.form__field span {
  font-weight: 700;
}

.form input,
.form select,
.form textarea {
  width: 100%;
  padding: 14px 16px;
  border-radius: var(--radius-sm);
  border: 1px solid rgba(131, 145, 173, 0.35);
  background: #fdfdff;
  font: inherit;
  color: var(--text);
  outline: none;
  transition:
    border-color 0.2s ease,
    box-shadow 0.2s ease;
}

.form input:focus,
.form select:focus,
.form textarea:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 4px rgba(79, 70, 229, 0.12);
}

.success-page {
  min-height: 100vh;
  display: grid;
  place-items: center;
  padding: 24px;
}

.success-card {
  width: min(100%, 760px);
  padding: 42px;
  border: 1px solid var(--border);
}

.success-card__details {
  margin: 28px 0;
  padding: 22px;
  border-radius: var(--radius-md);
  background: #f7f9ff;
  border: 1px solid rgba(79, 70, 229, 0.12);
}

.success-card__details ul {
  list-style: none;
  padding: 0;
  margin: 0;
}

.success-card__details li + li {
  margin-top: 10px;
}

.admin-page {
  padding: 60px 0 80px;
}

.admin-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 20px;
  margin-bottom: 28px;
}

.admin-header__text {
  color: var(--muted);
  max-width: 700px;
}

.admin-table-wrapper,
.admin-empty {
  background: var(--surface-strong);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow);
  border: 1px solid var(--border);
}

.admin-table-wrapper {
  overflow-x: auto;
}

.admin-table {
  width: 100%;
  border-collapse: collapse;
  min-width: 980px;
}

.admin-table th,
.admin-table td {
  padding: 16px 18px;
  border-bottom: 1px solid rgba(131, 145, 173, 0.18);
  text-align: left;
  vertical-align: top;
}

.admin-table th {
  background: #f6f8ff;
  font-size: 0.95rem;
}

.admin-table tr:hover td {
  background: rgba(79, 70, 229, 0.03);
}

.admin-empty {
  padding: 32px;
}

@media (max-width: 768px) {
  .hero {
    padding-top: 70px;
  }

  .hero__content,
  .form,
  .success-card {
    padding: 28px 22px;
  }

  .admin-header {
    flex-direction: column;
  }

  .form__grid {
    grid-template-columns: 1fr;
  }

  .form__field--full {
    grid-column: auto;
  }

  h1 {
    font-size: 2.4rem;
  }
}