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

:root {
  --primary:    #0D1B2A;
  --primary-lt: #1a2f45;
  --bg:         #F5F6F8;
  --white:      #ffffff;
  --grey-100:   #f0f1f3;
  --grey-300:   #d1d5db;
  --grey-500:   #6b7280;
  --grey-700:   #374151;
  --radius:     12px;
  --radius-sm:  8px;
}

html { scroll-behavior: smooth; }

body {
  font-family: 'Inter', system-ui, sans-serif;
  background: var(--bg);
  color: var(--grey-700);
  line-height: 1.6;
}

/* ── CONTAINER ── */
.container {
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 24px;
}

/* ── BUTTONS ── */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: var(--primary);
  color: var(--white);
  padding: 12px 24px;
  border-radius: var(--radius-sm);
  font-weight: 600;
  font-size: 15px;
  text-decoration: none;
  transition: background .2s;
}
.btn:hover { background: var(--primary-lt); }

.btn--sm { padding: 8px 18px; font-size: 14px; }

.btn--outline {
  background: transparent;
  color: var(--primary);
  border: 1.5px solid var(--primary);
}
.btn--outline:hover { background: var(--grey-100); }

.btn--light {
  background: var(--white);
  color: var(--primary);
}
.btn--light:hover { background: var(--grey-100); }

/* ── NAV ── */
.nav {
  background: var(--primary);
  position: sticky;
  top: 0;
  z-index: 100;
  box-shadow: 0 1px 0 rgba(255,255,255,.08);
}
.nav__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 60px;
}
.nav__logo {
  color: var(--white);
  font-weight: 700;
  font-size: 17px;
  letter-spacing: .2px;
}

/* ── HERO ── */
.hero {
  background: var(--primary);
  color: var(--white);
  padding: 80px 0 60px;
}
.hero__inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: center;
}
.hero__title {
  font-size: clamp(2rem, 4vw, 2.8rem);
  font-weight: 700;
  line-height: 1.2;
  margin-bottom: 20px;
}
.hero__subtitle {
  font-size: 17px;
  color: rgba(255,255,255,.75);
  margin-bottom: 36px;
  max-width: 440px;
}
.hero__actions { display: flex; gap: 12px; flex-wrap: wrap; }

/* ── PHONE MOCKUP ── */
.hero__graphic { display: flex; justify-content: center; }

.phone-mockup {
  width: 240px;
  background: #1a2f45;
  border-radius: 28px;
  padding: 12px;
  box-shadow: 0 24px 64px rgba(0,0,0,.4);
}
.phone-mockup__screen {
  background: var(--bg);
  border-radius: 18px;
  overflow: hidden;
  min-height: 380px;
}
.mock-appbar {
  background: var(--primary);
  color: var(--white);
  font-size: 13px;
  font-weight: 600;
  padding: 14px 16px;
}
.mock-card {
  background: var(--white);
  margin: 10px;
  border-radius: 10px;
  padding: 12px;
  border: 1px solid var(--grey-300);
}
.mock-tag {
  font-size: 10px;
  font-weight: 600;
  color: var(--grey-500);
  text-transform: uppercase;
  letter-spacing: .5px;
  margin-bottom: 4px;
}
.mock-title {
  font-size: 12px;
  font-weight: 600;
  color: var(--primary);
  margin-bottom: 8px;
}
.mock-status {
  display: inline-block;
  font-size: 10px;
  font-weight: 600;
  padding: 2px 8px;
  border-radius: 4px;
}
.mock-status.new      { background: #FFB3BA; color: #7a1a26; }
.mock-status.progress { background: #FFFFBA; color: #7a6800; }
.mock-status.resolved { background: #BAFFC9; color: #1a5c30; }
.mock-status.closed   { background: #BAE1FF; color: #1a4d7a; }

/* ── SECTION TYPOGRAPHY ── */
.section-title {
  font-size: clamp(1.6rem, 3vw, 2rem);
  font-weight: 700;
  color: var(--primary);
  text-align: center;
  margin-bottom: 12px;
}
.section-subtitle {
  text-align: center;
  color: var(--grey-500);
  font-size: 16px;
  margin-bottom: 48px;
}

/* ── FEATURES ── */
.features { padding: 80px 0; }

.features__grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 20px;
}
.feature-card {
  background: var(--white);
  border: 1px solid var(--grey-300);
  border-radius: var(--radius);
  padding: 28px 24px;
}
.feature-card__icon { font-size: 28px; margin-bottom: 14px; }
.feature-card__title {
  font-size: 16px;
  font-weight: 600;
  color: var(--primary);
  margin-bottom: 8px;
}
.feature-card__desc { font-size: 14px; color: var(--grey-500); line-height: 1.6; }

/* ── STEPS ── */
.steps {
  background: var(--white);
  border-top: 1px solid var(--grey-300);
  border-bottom: 1px solid var(--grey-300);
  padding: 80px 0;
}
.steps__grid {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 24px;
  flex-wrap: wrap;
}
.step {
  text-align: center;
  max-width: 220px;
}
.step__number {
  width: 48px;
  height: 48px;
  background: var(--primary);
  color: var(--white);
  border-radius: 50%;
  font-size: 20px;
  font-weight: 700;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 16px;
}
.step__title {
  font-size: 16px;
  font-weight: 600;
  color: var(--primary);
  margin-bottom: 8px;
}
.step__desc { font-size: 14px; color: var(--grey-500); }
.step__arrow { font-size: 24px; color: var(--grey-300); }

/* ── DOWNLOAD ── */
.download {
  background: var(--primary);
  color: var(--white);
  padding: 80px 0;
  text-align: center;
}
.download__title {
  font-size: clamp(1.5rem, 3vw, 2rem);
  font-weight: 700;
  margin-bottom: 12px;
  max-width: 560px;
  margin-left: auto;
  margin-right: auto;
}
.download__subtitle {
  color: rgba(255,255,255,.7);
  font-size: 16px;
  margin-bottom: 36px;
}
.download__actions { display: flex; justify-content: center; gap: 12px; flex-wrap: wrap; }

/* ── FOOTER ── */
.footer {
  background: #080f18;
  color: rgba(255,255,255,.4);
  padding: 24px 0;
}
.footer__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 8px;
}
.footer__brand { color: rgba(255,255,255,.7); font-weight: 600; font-size: 14px; }
.footer__copy { font-size: 13px; }

/* ── RESPONSIVE ── */
@media (max-width: 720px) {
  .hero__inner { grid-template-columns: 1fr; }
  .hero__graphic { display: none; }
  .hero { padding: 60px 0 48px; }
  .step__arrow { transform: rotate(90deg); }
  .steps__grid { flex-direction: column; gap: 16px; }
}