/* ============================================================
   SIA "Dovlet" — Stylesheet
   Clean, minimal, professional · Dark navy / white
   ============================================================ */

/* ── Reset & Base ── */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

:root {
  --navy:        #0f2544;
  --navy-mid:    #1a3a6b;
  --navy-dark:   #091b35;
  --accent:      #2b7fff;
  --accent-dark: #1a6df0;
  --white:       #ffffff;
  --off-white:   #f4f7fc;
  --border:      #e2e8f4;
  --muted:       #64748b;
  --text:        #0f1f3d;

  --font:        'Segoe UI', system-ui, -apple-system, sans-serif;
  --radius:      10px;
  --ease:        0.2s ease;

  --max-w:       1100px;
  --pad-section: 88px 24px;
}

html {
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: var(--font);
  font-size: 16px;
  line-height: 1.65;
  color: var(--text);
  background: var(--white);
}

a   { color: inherit; text-decoration: none; }
ul, ol { list-style: none; }
address { font-style: normal; }
img { max-width: 100%; display: block; }

/* ── Layout helpers ── */
.container {
  max-width: var(--max-w);
  margin: 0 auto;
  padding: var(--pad-section);
}

.container--narrow {
  max-width: 740px;
}

/* ── Buttons ── */
.btn {
  display: inline-block;
  padding: 13px 28px;
  border-radius: var(--radius);
  font-size: 15px;
  font-weight: 600;
  border: 2px solid transparent;
  cursor: pointer;
  transition:
    background var(--ease),
    border-color var(--ease),
    color var(--ease);
  white-space: nowrap;
  line-height: 1;
}

.btn--primary {
  background: var(--accent);
  color: var(--white);
  border-color: var(--accent);
}
.btn--primary:hover,
.btn--primary:focus-visible {
  background: var(--accent-dark);
  border-color: var(--accent-dark);
}

.btn--ghost {
  background: transparent;
  color: var(--white);
  border-color: rgba(255, 255, 255, 0.45);
}
.btn--ghost:hover,
.btn--ghost:focus-visible {
  border-color: var(--white);
  background: rgba(255, 255, 255, 0.08);
}

.btn--nav {
  background: var(--accent);
  color: var(--white);
  padding: 9px 20px;
  font-size: 14px;
  border-radius: 8px;
  border-color: var(--accent);
}
.btn--nav:hover,
.btn--nav:focus-visible {
  background: var(--accent-dark);
  border-color: var(--accent-dark);
}

/* ── Navigation ── */
.nav {
  position: sticky;
  top: 0;
  z-index: 200;
  background: var(--navy);
  border-bottom: 1px solid rgba(255, 255, 255, 0.07);
}

.nav__inner {
  display: flex;
  align-items: center;
  gap: 32px;
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 0 24px;
  height: 64px;
  position: relative;
}

.nav__logo {
  font-size: 17px;
  font-weight: 700;
  color: var(--white);
  letter-spacing: 0.01em;
  flex-shrink: 0;
}

.nav__links {
  display: flex;
  align-items: center;
  gap: 28px;
  margin-left: auto;
}

.nav__links a {
  color: rgba(255, 255, 255, 0.78);
  font-size: 14px;
  font-weight: 500;
  transition: color var(--ease);
}
.nav__links a:hover,
.nav__links a:focus-visible {
  color: var(--white);
}

.nav__toggle {
  display: none;
  background: none;
  border: none;
  color: var(--white);
  font-size: 22px;
  cursor: pointer;
  padding: 4px;
  margin-left: auto;
  line-height: 1;
}

/* ── Hero ── */
.hero {
  background: var(--navy);
  color: var(--white);
}

.hero__container {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  gap: 24px;
  padding-top: 96px;
  padding-bottom: 96px;
}

.hero__tag {
  display: inline-block;
  background: rgba(43, 127, 255, 0.18);
  color: #93c5fd;
  border: 1px solid rgba(43, 127, 255, 0.3);
  border-radius: 50px;
  padding: 5px 18px;
  font-size: 12.5px;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.hero__title {
  font-size: clamp(36px, 6vw, 62px);
  font-weight: 800;
  line-height: 1.1;
  letter-spacing: -0.025em;
  max-width: 680px;
}

.hero__subtitle {
  font-size: clamp(16px, 2vw, 19px);
  color: rgba(255, 255, 255, 0.72);
  max-width: 580px;
  line-height: 1.65;
}

.hero__cta-group {
  display: flex;
  gap: 14px;
  flex-wrap: wrap;
  justify-content: center;
}

.hero__markets {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
  justify-content: center;
  margin-top: 8px;
}

.hero__markets span {
  background: rgba(255, 255, 255, 0.07);
  border: 1px solid rgba(255, 255, 255, 0.11);
  border-radius: 6px;
  padding: 4px 13px;
  font-size: 13px;
  color: rgba(255, 255, 255, 0.65);
}

/* ── Section shells ── */
.section--light { background: var(--off-white); color: var(--text); }
.section--dark  { background: var(--navy);      color: var(--white); }
.section--navy  { background: var(--navy-dark); color: var(--white); }

.section__title {
  font-size: clamp(24px, 3.5vw, 36px);
  font-weight: 700;
  text-align: center;
  letter-spacing: -0.02em;
  margin-bottom: 12px;
}

.section__lead {
  text-align: center;
  font-size: 17px;
  color: rgba(255, 255, 255, 0.68);
  max-width: 580px;
  margin: 0 auto 52px;
  line-height: 1.65;
}

.section__lead--muted {
  color: var(--muted);
}

/* ── Problem cards ── */
.cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 24px;
  margin-top: 48px;
}

.card {
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 32px 28px;
  box-shadow: 0 2px 14px rgba(15, 37, 68, 0.06);
}

.card__icon {
  font-size: 36px;
  margin-bottom: 16px;
  line-height: 1;
}

.card__title {
  font-size: 18px;
  font-weight: 700;
  margin-bottom: 10px;
}

.card p {
  font-size: 15px;
  color: #4a5568;
  line-height: 1.65;
}

/* ── Solution split ── */
.split {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 56px;
  margin-top: 52px;
}

.split__heading {
  font-size: 19px;
  font-weight: 700;
  margin-bottom: 22px;
  padding-bottom: 14px;
  border-bottom: 2px solid rgba(255, 255, 255, 0.12);
}

.split__note {
  margin-top: 22px;
  font-size: 14px;
  color: rgba(255, 255, 255, 0.46);
  line-height: 1.65;
  font-style: italic;
}

/* ── Checklists ── */
.checklist {
  display: flex;
  flex-direction: column;
  gap: 13px;
}

.checklist li {
  position: relative;
  padding-left: 28px;
  font-size: 15px;
  line-height: 1.55;
  color: rgba(255, 255, 255, 0.82);
}

.checklist--yes li::before {
  content: '✓';
  position: absolute;
  left: 0;
  color: #4ade80;
  font-weight: 700;
}

.checklist--no li::before {
  content: '✗';
  position: absolute;
  left: 0;
  color: #f87171;
  font-weight: 700;
}

/* ── Steps ── */
.steps {
  display: flex;
  align-items: flex-start;
  gap: 0;
  margin-top: 52px;
  flex-wrap: wrap;
}

.step {
  flex: 1;
  min-width: 220px;
  text-align: center;
  padding: 0 28px;
}

.step__number {
  width: 56px;
  height: 56px;
  border-radius: 50%;
  background: var(--accent);
  color: var(--white);
  font-size: 22px;
  font-weight: 800;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 20px;
}

.step__title {
  font-size: 18px;
  font-weight: 700;
  margin-bottom: 10px;
  color: var(--text);
}

.step__body {
  font-size: 15px;
  color: var(--muted);
  line-height: 1.65;
}

.step__connector {
  flex-shrink: 0;
  width: 56px;
  height: 2px;
  background: var(--border);
  margin-top: 28px;
  align-self: flex-start;
}

/* ── Pricing ── */
.pricing-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 24px;
  margin-top: 52px;
}

.pricing-card {
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: var(--radius);
  padding: 32px 28px;
  display: flex;
  flex-direction: column;
  gap: 12px;
  position: relative;
  transition: border-color var(--ease);
}

.pricing-card:hover {
  border-color: rgba(255, 255, 255, 0.22);
}

.pricing-card--featured {
  border-color: var(--accent);
  background: rgba(43, 127, 255, 0.09);
}

.pricing-card--featured:hover {
  border-color: #5a9eff;
}

.pricing-card__badge {
  position: absolute;
  top: -13px;
  left: 50%;
  transform: translateX(-50%);
  background: var(--accent);
  color: var(--white);
  font-size: 11.5px;
  font-weight: 700;
  padding: 4px 14px;
  border-radius: 50px;
  white-space: nowrap;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.pricing-card__tier {
  font-size: 17px;
  font-weight: 700;
}

.pricing-card__scale {
  font-size: 28px;
  font-weight: 800;
  color: #93c5fd;
  line-height: 1.1;
}

.pricing-card p {
  font-size: 14.5px;
  color: rgba(255, 255, 255, 0.6);
  line-height: 1.65;
  flex: 1;
}

.pricing-card .btn {
  margin-top: 8px;
  text-align: center;
}

.pricing-note {
  text-align: center;
  margin-top: 32px;
  font-size: 14px;
  color: rgba(255, 255, 255, 0.46);
  max-width: 540px;
  margin-left: auto;
  margin-right: auto;
  line-height: 1.6;
}

/* ── About ── */
.about__text {
  font-size: 16px;
  color: #4a5568;
  line-height: 1.75;
  text-align: center;
  margin-bottom: 20px;
}

.about__services {
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 30px 36px;
  margin-top: 44px;
  box-shadow: 0 2px 14px rgba(15, 37, 68, 0.06);
}

.about__services h3 {
  font-size: 17px;
  font-weight: 700;
  margin-bottom: 12px;
  color: var(--text);
}

.about__services p {
  font-size: 15px;
  color: #4a5568;
  line-height: 1.7;
}

/* ── Contact ── */
.contact-list {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
  margin-top: 52px;
}

.contact-item {
  display: flex;
  align-items: center;
  gap: 14px;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(255, 255, 255, 0.09);
  border-radius: var(--radius);
  padding: 20px 24px;
  font-size: 15px;
  transition: border-color var(--ease);
}

.contact-item:hover {
  border-color: rgba(255, 255, 255, 0.2);
}

.contact-item__icon {
  font-size: 22px;
  flex-shrink: 0;
  line-height: 1;
}

.contact-item a {
  color: #93c5fd;
  text-decoration: underline;
  text-decoration-color: transparent;
  transition: text-decoration-color var(--ease);
}

.contact-item a:hover,
.contact-item a:focus-visible {
  text-decoration-color: #93c5fd;
}

.contact-item address {
  color: rgba(255, 255, 255, 0.75);
}

/* ── Footer ── */
.footer {
  background: var(--navy-dark);
  color: rgba(255, 255, 255, 0.38);
  border-top: 1px solid rgba(255, 255, 255, 0.06);
}

.footer__inner {
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 24px;
  text-align: center;
  font-size: 13px;
}

/* ── Focus visible (accessibility) ── */
:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 3px;
  border-radius: 4px;
}

/* ── Responsive — tablet ── */
@media (max-width: 800px) {
  :root {
    --pad-section: 64px 20px;
  }

  .split {
    grid-template-columns: 1fr;
    gap: 40px;
  }

  .steps {
    flex-direction: column;
    align-items: center;
    gap: 0;
  }

  .step {
    min-width: auto;
    width: 100%;
    max-width: 400px;
    padding: 0 16px;
  }

  .step__connector {
    width: 2px;
    height: 36px;
    margin: 0 auto;
  }

  .contact-list {
    grid-template-columns: 1fr;
  }
}

/* ── Responsive — mobile ── */
@media (max-width: 640px) {
  :root {
    --pad-section: 52px 18px;
  }

  .nav__links {
    display: none;
    position: absolute;
    top: 64px;
    left: 0;
    right: 0;
    background: var(--navy);
    flex-direction: column;
    align-items: flex-start;
    gap: 18px;
    padding: 20px 24px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.08);
    z-index: 199;
  }

  .nav__links.is-open {
    display: flex;
  }

  .nav__toggle {
    display: block;
  }

  .hero__container {
    padding-top: 64px;
    padding-bottom: 72px;
  }

  .hero__cta-group {
    flex-direction: column;
    align-items: center;
    width: 100%;
  }

  .hero__cta-group .btn {
    width: 100%;
    max-width: 320px;
    text-align: center;
  }

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

  .about__services {
    padding: 24px 22px;
  }
}