/* ===== RESET & BASE ===== */
*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  background: #ffffff;
  color: #0f172a;
  font-size: 16px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

/* ===== CONTAINER ===== */
.container {
  width: 100%;
  max-width: 780px;
  margin: 0 auto;
  padding: 0 24px;
}

/* ===== BUTTONS ===== */
.btn {
  display: inline-block;
  padding: 12px 24px;
  border-radius: 8px;
  font-size: 15px;
  font-weight: 600;
  text-decoration: none;
  cursor: pointer;
  transition: background 0.15s ease, color 0.15s ease, border-color 0.15s ease;
  line-height: 1;
  white-space: nowrap;
}

.btn--primary {
  background: #2563EB;
  color: #ffffff;
  border: 2px solid #2563EB;
}

.btn--primary:hover {
  background: #1d4ed8;
  border-color: #1d4ed8;
}

.btn--outline {
  background: transparent;
  color: #2563EB;
  border: 2px solid #2563EB;
}

.btn--outline:hover {
  background: #2563EB;
  color: #ffffff;
}

/* ===== DIVIDER ===== */
.divider {
  width: 100%;
  height: 1px;
  background: #e2e8f0;
}

/* ===== SECTION TITLE ===== */
.section-title {
  font-size: 22px;
  font-weight: 700;
  color: #0f172a;
  margin-bottom: 32px;
  letter-spacing: -0.02em;
}

/* ===== NAV ===== */
.nav {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid #e2e8f0;
}

.nav__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: 16px;
  padding-bottom: 16px;
}

.nav__logo {
  font-size: 18px;
  font-weight: 700;
  color: #0f172a;
  letter-spacing: -0.02em;
}

/* ===== HERO ===== */
.hero {
  padding: 80px 0 88px;
}

.hero__inner {
  display: flex;
  flex-direction: row;
  align-items: center;
  justify-content: space-between;
  gap: 48px;
}

.hero__text {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 20px;
  flex: 1;
  min-width: 0;
}

.hero__photo {
  flex-shrink: 0;
}

.hero__img {
  width: 260px;
  height: 260px;
  object-fit: cover;
  object-position: center top;
  border-radius: 20px;
  display: block;
}

.hero__label {
  font-size: 14px;
  font-weight: 600;
  color: #2563EB;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.hero__name {
  font-size: clamp(40px, 6vw, 64px);
  font-weight: 700;
  color: #0f172a;
  letter-spacing: -0.03em;
  line-height: 1.1;
}

.hero__tagline {
  font-size: 18px;
  color: #475569;
  max-width: 520px;
  line-height: 1.65;
  font-weight: 400;
}

/* ===== CASES ===== */
.cases {
  padding: 72px 0;
}

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

.card {
  border: 1px solid #e2e8f0;
  border-radius: 12px;
  padding: 28px 28px 24px;
  background: #ffffff;
}

.card:hover {
  border-color: #bfdbfe;
}

.card__top {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 16px;
  margin-bottom: 14px;
}

.card__title {
  font-size: 18px;
  font-weight: 700;
  color: #0f172a;
  letter-spacing: -0.01em;
  line-height: 1.3;
}

.tag {
  flex-shrink: 0;
  display: inline-block;
  padding: 4px 10px;
  background: #eff6ff;
  color: #2563EB;
  border-radius: 6px;
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.01em;
  white-space: nowrap;
}

.card__desc {
  font-size: 15px;
  color: #475569;
  line-height: 1.65;
}

/* ===== CONTACT ===== */
.contact {
  padding: 80px 0 88px;
}

.contact__inner {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 16px;
}

.contact__title {
  font-size: clamp(28px, 4vw, 40px);
  font-weight: 700;
  color: #0f172a;
  letter-spacing: -0.02em;
  line-height: 1.15;
}

.contact__sub {
  font-size: 16px;
  color: #475569;
  max-width: 420px;
  line-height: 1.6;
  margin-bottom: 4px;
}

/* ===== FOOTER ===== */
.footer {
  border-top: 1px solid #e2e8f0;
  padding: 24px 0;
}

.footer__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  font-size: 14px;
  color: #94a3b8;
}

.footer__inner a {
  color: #64748b;
  text-decoration: none;
}

.footer__inner a:hover {
  color: #2563EB;
}

/* ===== REVIEWS ===== */
.reviews {
  padding: 72px 0;
}

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

.review-card {
  border: 1px solid #e2e8f0;
  border-radius: 12px;
  padding: 24px;
  background: #f8fafc;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.review-stars {
  color: #f59e0b;
  font-size: 16px;
  letter-spacing: 2px;
}

.review-text {
  font-size: 15px;
  color: #374151;
  line-height: 1.65;
  flex: 1;
}

.review-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
  margin-top: 4px;
}

.review-name {
  font-size: 14px;
  font-weight: 600;
  color: #0f172a;
}

.review-source {
  font-size: 12px;
  color: #94a3b8;
}

/* ===== RESPONSIVE ===== */
@media (max-width: 600px) {
  .hero {
    padding: 56px 0 64px;
  }

  .hero__inner {
    flex-direction: column-reverse;
    align-items: center;
    gap: 32px;
  }

  .hero__text {
    align-items: flex-start;
    width: 100%;
  }

  .hero__photo {
    width: 100%;
    display: flex;
    justify-content: center;
  }

  .hero__img {
    width: 200px;
    height: 200px;
    border-radius: 50%;
  }

  .hero__name {
    font-size: 40px;
  }

  .hero__tagline {
    font-size: 16px;
  }

  .cases {
    padding: 56px 0;
  }

  .contact {
    padding: 56px 0 64px;
  }

  .card {
    padding: 22px 20px 20px;
  }

  .card__top {
    flex-direction: column;
    gap: 10px;
  }

  .footer__inner {
    flex-direction: column;
    align-items: flex-start;
    gap: 8px;
  }

  .review-cards {
    grid-template-columns: 1fr;
  }

  .nav__inner {
    padding-top: 14px;
    padding-bottom: 14px;
  }
}