/* ===================== VARIABLES ===================== */
:root {
  --color-bg: #ffffff;
  --color-bg-alt: #F7F9FC;
  --color-text: #1A1A1A;
  --color-text-secondary: #6B7280;
  --color-border: #E5E9F0;

  --color-primary: #185FA5;
  --color-primary-light: #E6F1FB;
  --color-primary-dark: #0C447C;

  --color-green: #3B6D11;
  --color-green-light: #EAF3DE;

  --color-amber: #854F0B;
  --color-amber-light: #FAEEDA;

  --radius-md: 8px;
  --radius-lg: 14px;
  --max-width: 1140px;

  --shadow-sm: 0 1px 2px rgba(16, 24, 40, 0.04);
  --shadow-md: 0 4px 16px rgba(16, 24, 40, 0.06);
}

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

html { scroll-behavior: smooth; }

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  color: var(--color-text);
  background: var(--color-bg);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

a { text-decoration: none; color: inherit; }
ul { list-style: none; }
button { font-family: inherit; cursor: pointer; border: none; background: none; }
img, svg { display: block; }

.container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 24px;
}

/* ===================== BUTTONS ===================== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 24px;
  border-radius: var(--radius-md);
  font-size: 15px;
  font-weight: 600;
  transition: all 0.15s ease;
  white-space: nowrap;
}

.btn--primary {
  background: var(--color-primary);
  color: #fff;
}
.btn--primary:hover {
  background: var(--color-primary-dark);
}

.btn--outline {
  background: transparent;
  color: var(--color-text);
  border: 1.5px solid var(--color-border);
}
.btn--outline:hover {
  border-color: var(--color-primary);
  color: var(--color-primary);
}

/* ===================== HEADER ===================== */
.header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(255, 255, 255, 0.85);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--color-border);
}

.header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
}

.logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 20px;
  font-weight: 700;
}

.logo__icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  border-radius: var(--radius-md);
  background: var(--color-primary);
  color: #fff;
  font-weight: 700;
  font-size: 18px;
}

.nav {
  display: flex;
  align-items: center;
  gap: 32px;
}

.nav__link {
  font-size: 15px;
  font-weight: 500;
  color: var(--color-text-secondary);
  transition: color 0.15s ease;
}
.nav__link:hover {
  color: var(--color-primary);
}

.header__cta { display: inline-flex; }

.burger {
  display: none;
  flex-direction: column;
  gap: 5px;
  padding: 8px;
}
.burger span {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--color-text);
  border-radius: 2px;
}

/* ===================== HERO ===================== */
.hero {
  padding: 96px 0 80px;
  text-align: center;
  background: linear-gradient(180deg, var(--color-primary-light) 0%, rgba(230,241,251,0) 100%);
}

.badge {
  display: inline-block;
  font-size: 13px;
  font-weight: 600;
  color: var(--color-primary);
  background: var(--color-primary-light);
  padding: 6px 16px;
  border-radius: 100px;
  margin-bottom: 24px;
}

.hero__title {
  font-size: 48px;
  font-weight: 700;
  line-height: 1.25;
  letter-spacing: -0.02em;
  margin-bottom: 20px;
}

.hero__text {
  font-size: 17px;
  color: var(--color-text-secondary);
  max-width: 560px;
  margin: 0 auto 36px;
}

.hero__actions {
  display: flex;
  gap: 14px;
  justify-content: center;
}

/* ===================== SECTIONS ===================== */
.section {
  padding: 80px 0;
}

.section--alt {
  background: var(--color-bg-alt);
}

.section__head {
  text-align: center;
  max-width: 600px;
  margin: 0 auto 48px;
}

.section__title {
  font-size: 32px;
  font-weight: 700;
  letter-spacing: -0.01em;
  margin-bottom: 12px;
}

.section__subtitle {
  font-size: 16px;
  color: var(--color-text-secondary);
}

.section__subtitle--left {
  margin: 12px 0 20px;
  max-width: 480px;
}

/* ===================== CARDS ===================== */
.cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 24px;
}

.card {
  background: #fff;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 32px;
  transition: box-shadow 0.2s ease, transform 0.2s ease;
}
.card:hover {
  box-shadow: var(--shadow-md);
  transform: translateY(-2px);
}

.card__icon {
  width: 48px;
  height: 48px;
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 20px;
}
.card__icon svg { width: 24px; height: 24px; }

.card__icon--blue  { background: var(--color-primary-light); color: var(--color-primary); }
.card__icon--green { background: var(--color-green-light);   color: var(--color-green); }
.card__icon--amber { background: var(--color-amber-light);   color: var(--color-amber); }

.card__title {
  font-size: 19px;
  font-weight: 600;
  margin-bottom: 10px;
}

.card__text {
  font-size: 15px;
  color: var(--color-text-secondary);
}

/* ===================== FEATURES ===================== */
.features {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 32px;
  text-align: center;
}

.feature__icon {
  width: 56px;
  height: 56px;
  margin: 0 auto 16px;
  border-radius: 50%;
  background: var(--color-primary-light);
  color: var(--color-primary);
  display: flex;
  align-items: center;
  justify-content: center;
}
.feature__icon svg { width: 26px; height: 26px; }

.feature__title {
  font-size: 16px;
  font-weight: 600;
  margin-bottom: 6px;
}

.feature__text {
  font-size: 14px;
  color: var(--color-text-secondary);
}

/* ===================== ABOUT ===================== */
.about {
  display: grid;
  grid-template-columns: 1.2fr 1fr;
  gap: 64px;
  align-items: center;
}

.about__list {
  display: flex;
  flex-direction: column;
  gap: 12px;
}
.about__list li {
  font-size: 15px;
  padding-left: 28px;
  position: relative;
}
.about__list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 7px;
  width: 16px;
  height: 16px;
  border-radius: 50%;
  background: var(--color-primary-light);
  border: 2px solid var(--color-primary);
}

.about__stats {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
}

.stat {
  background: var(--color-bg-alt);
  border-radius: var(--radius-lg);
  padding: 28px 20px;
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.stat__num {
  font-size: 30px;
  font-weight: 700;
  color: var(--color-primary);
}

.stat__label {
  font-size: 13px;
  color: var(--color-text-secondary);
}

/* ===================== CONTACT ===================== */
.contact {
  display: grid;
  grid-template-columns: 1.3fr 1fr;
  gap: 32px;
}

.contact__form {
  background: #fff;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 32px;
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.form__row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}

input, textarea {
  width: 100%;
  font-family: inherit;
  font-size: 15px;
  padding: 12px 16px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  background: var(--color-bg-alt);
  resize: vertical;
  transition: border-color 0.15s ease;
}
input:focus, textarea:focus {
  outline: none;
  border-color: var(--color-primary);
  background: #fff;
}

.contact__info {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.contact__item {
  display: flex;
  align-items: center;
  gap: 16px;
  background: #fff;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 20px;
}

.contact__icon {
  width: 44px;
  height: 44px;
  border-radius: var(--radius-md);
  background: var(--color-primary-light);
  color: var(--color-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}
.contact__icon svg { width: 20px; height: 20px; }

.contact__label {
  display: block;
  font-size: 13px;
  color: var(--color-text-secondary);
}

.contact__value {
  display: block;
  font-size: 15px;
  font-weight: 600;
}

/* ===================== FOOTER ===================== */
.footer {
  border-top: 1px solid var(--color-border);
  padding: 28px 0;
}

.footer__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 12px;
  font-size: 14px;
  color: var(--color-text-secondary);
}

.footer__links {
  display: flex;
  gap: 24px;
}
.footer__links a:hover { color: var(--color-primary); }

/* ===================== RESPONSIVE ===================== */
@media (max-width: 900px) {
  .about { grid-template-columns: 1fr; }
  .contact { grid-template-columns: 1fr; }
}

@media (max-width: 768px) {
  .nav { display: none; }
  .header__cta { display: none; }
  .burger { display: flex; }

  .hero__title { font-size: 34px; }
  .hero__text { font-size: 15px; }
  .section__title { font-size: 26px; }

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

  .nav--open {
    display: flex;
    flex-direction: column;
    position: absolute;
    top: 72px;
    left: 0;
    right: 0;
    background: #fff;
    border-bottom: 1px solid var(--color-border);
    padding: 16px 24px;
    gap: 16px;
  }
}