:root {
  --color-bg: #fbfcff;
  --color-surface: #ffffff;
  --color-muted: #f4f7fb;
  --color-text: #172033;
  --color-soft-text: #607086;
  --color-primary: #2864e0;
  --color-primary-dark: #1748a8;
  --color-accent: #12a88a;
  --color-line: #e4eaf2;
  --shadow-soft: 0 18px 55px rgba(30, 46, 79, 0.1);
  --shadow-card: 0 10px 28px rgba(30, 46, 79, 0.08);
  --radius-sm: 12px;
  --radius-md: 18px;
  --radius-lg: 28px;
  --container: 1120px;
  --space-section: clamp(4rem, 8vw, 7rem);
  --font-main: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background: var(--color-bg);
  color: var(--color-text);
  font-family: var(--font-main);
  line-height: 1.6;
}

body.nav-open {
  overflow: hidden;
}

a {
  color: inherit;
  text-decoration: none;
}

img {
  display: block;
  max-width: 100%;
}

.container {
  width: min(100% - 2rem, var(--container));
  margin-inline: auto;
}

.section {
  padding-block: var(--space-section);
}

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

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  background: rgba(251, 252, 255, 0.88);
  border-bottom: 1px solid rgba(228, 234, 242, 0.75);
  backdrop-filter: blur(16px);
}

.nav {
  min-height: 76px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}

.logo {
  display: inline-flex;
  align-items: center;
  gap: 0.65rem;
  font-weight: 800;
  letter-spacing: 0;
}

.logo-mark {
  width: 34px;
  height: 34px;
  display: grid;
  place-items: center;
  border-radius: 10px;
  background: var(--color-text);
  color: white;
  font-size: 0.95rem;
}

.nav-menu {
  display: none;
  position: fixed;
  inset: 76px 1rem auto;
  padding: 1rem;
  background: var(--color-surface);
  border: 1px solid var(--color-line);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-card);
}

.nav-menu.is-open {
  display: grid;
}

.nav-menu a {
  padding: 0.8rem;
  color: var(--color-soft-text);
  font-weight: 650;
}

.nav-menu a:hover {
  color: var(--color-text);
}

.nav-toggle {
  width: 44px;
  height: 44px;
  display: inline-grid;
  place-content: center;
  gap: 5px;
  border: 1px solid var(--color-line);
  border-radius: 12px;
  background: var(--color-surface);
  cursor: pointer;
}

.nav-toggle span:not(.sr-only) {
  width: 18px;
  height: 2px;
  background: var(--color-text);
  border-radius: 99px;
}

.nav-cta {
  display: none;
}

.button,
.text-link {
  min-height: 48px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 999px;
  font-weight: 750;
}

.button {
  padding: 0.85rem 1.25rem;
  background: var(--color-primary);
  color: white;
  box-shadow: 0 10px 24px rgba(40, 100, 224, 0.22);
  transition: transform 180ms ease, background 180ms ease, box-shadow 180ms ease;
}

.button:hover {
  transform: translateY(-2px);
  background: var(--color-primary-dark);
  box-shadow: 0 14px 30px rgba(40, 100, 224, 0.26);
}

.button-small {
  min-height: 42px;
  padding: 0.7rem 1rem;
  font-size: 0.92rem;
}

.button-light {
  background: white;
  color: var(--color-primary-dark);
  box-shadow: none;
}

.button-light:hover {
  background: #edf4ff;
  color: var(--color-primary-dark);
}

.text-link {
  color: var(--color-primary-dark);
}

.hero {
  overflow: hidden;
  padding-top: clamp(4rem, 7vw, 6rem);
}

.hero-grid,
.benefits-grid,
.pricing-panel {
  display: grid;
  gap: clamp(2rem, 5vw, 4rem);
  align-items: center;
}

.eyebrow {
  margin: 0 0 0.85rem;
  color: var(--color-accent);
  font-size: 0.78rem;
  font-weight: 800;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

h1,
h2,
h3,
p {
  margin-top: 0;
}

h1 {
  max-width: 12ch;
  margin-bottom: 1.25rem;
  font-size: clamp(2.75rem, 9vw, 5.45rem);
  line-height: 0.96;
  letter-spacing: 0;
}

h2 {
  margin-bottom: 1rem;
  font-size: clamp(2rem, 5vw, 3.2rem);
  line-height: 1.05;
  letter-spacing: 0;
}

h3 {
  margin-bottom: 0.55rem;
  font-size: 1.1rem;
  line-height: 1.25;
}

.hero-text,
.section-heading p,
.benefits-copy > p,
.pricing-panel p,
.cta-panel p {
  color: var(--color-soft-text);
  font-size: 1.05rem;
}

.hero-text {
  max-width: 40rem;
  margin-bottom: 1.8rem;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem 1rem;
  align-items: center;
}

.app-mockup {
  width: min(100%, 430px);
  margin-inline: auto;
  padding: 0.9rem;
  border: 1px solid var(--color-line);
  border-radius: var(--radius-lg);
  background: linear-gradient(145deg, #ffffff 0%, #f2f7ff 100%);
  box-shadow: var(--shadow-soft);
}

.mockup-topbar {
  display: flex;
  gap: 0.45rem;
  padding: 0.65rem 0.65rem 1rem;
}

.mockup-topbar span {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: #c7d4e8;
}

.mockup-content {
  padding: 1rem;
  border-radius: 22px;
  background: var(--color-surface);
}

.mockup-header,
.habit-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}

.mockup-header {
  margin-bottom: 1rem;
}

.mockup-header p,
.habit-row small {
  margin: 0;
  color: var(--color-soft-text);
  font-size: 0.85rem;
}

.progress-ring {
  width: 62px;
  height: 62px;
  display: grid;
  place-items: center;
  border: 8px solid #dce8ff;
  border-top-color: var(--color-primary);
  border-radius: 50%;
  color: var(--color-primary-dark);
  font-weight: 800;
}

.habit-list {
  display: grid;
  gap: 0.7rem;
}

.habit-row {
  justify-content: flex-start;
  padding: 0.8rem;
  border: 1px solid var(--color-line);
  border-radius: 16px;
}

.check {
  width: 28px;
  height: 28px;
  flex: 0 0 auto;
  border: 2px solid #cfd9e8;
  border-radius: 50%;
}

.habit-row.complete .check {
  border-color: var(--color-accent);
  background: radial-gradient(circle at center, var(--color-accent) 0 42%, transparent 45%);
}

.mockup-chart {
  height: 118px;
  display: flex;
  align-items: end;
  gap: 0.65rem;
  margin-top: 1rem;
  padding: 1rem;
  border-radius: 18px;
  background: var(--color-muted);
}

.mockup-chart span {
  flex: 1;
  min-width: 18px;
  border-radius: 999px 999px 6px 6px;
  background: linear-gradient(180deg, var(--color-accent), #8fe6d6);
}

.section-heading {
  max-width: 640px;
  margin-bottom: 2.5rem;
}

.feature-grid,
.steps-grid {
  display: grid;
  gap: 1rem;
}

.card,
.step {
  border: 1px solid var(--color-line);
  border-radius: var(--radius-md);
  background: var(--color-surface);
}

.card {
  padding: 1.25rem;
  box-shadow: var(--shadow-card);
}

.feature-card p,
.step p,
.stat-card,
.footer-inner {
  color: var(--color-soft-text);
}

.icon-placeholder,
.step span {
  width: 44px;
  height: 44px;
  display: grid;
  place-items: center;
  margin-bottom: 1rem;
  border-radius: 14px;
  background: #edf4ff;
  color: var(--color-primary-dark);
  font-size: 0.85rem;
  font-weight: 850;
}

.benefit-list {
  display: grid;
  gap: 1rem;
  margin: 1.6rem 0 0;
  padding: 0;
  list-style: none;
}

.benefit-list li {
  display: flex;
  gap: 0.85rem;
  align-items: flex-start;
  color: var(--color-text);
  font-weight: 650;
}

.benefit-list span {
  width: 22px;
  height: 22px;
  flex: 0 0 auto;
  margin-top: 0.13rem;
  border-radius: 50%;
  background: var(--color-accent);
  box-shadow: inset 0 0 0 6px #dff8f3;
}

.stat-card {
  padding: clamp(1.35rem, 5vw, 2rem);
}

.stat-number {
  margin-bottom: 0.2rem;
  color: var(--color-text);
  font-size: clamp(3rem, 10vw, 5rem);
  font-weight: 850;
  line-height: 1;
}

.stat-label {
  margin-bottom: 1.5rem;
  color: var(--color-soft-text);
  font-weight: 650;
}

blockquote {
  margin: 0 0 0.85rem;
  color: var(--color-text);
  font-size: 1.15rem;
  line-height: 1.45;
}

cite {
  font-style: normal;
  font-weight: 750;
}

.step {
  padding: 1.25rem;
}

.pricing-section {
  padding-block: clamp(3rem, 6vw, 5rem);
}

.pricing-panel {
  padding: clamp(1.25rem, 4vw, 2rem);
  border: 1px solid var(--color-line);
  border-radius: var(--radius-lg);
  background: var(--color-surface);
  box-shadow: var(--shadow-card);
}

.pricing-panel h2 {
  font-size: clamp(1.8rem, 4vw, 2.6rem);
}

.price-card {
  padding: 1.4rem;
  border-radius: 22px;
  background: var(--color-muted);
}

.price-card p,
.price-card span {
  margin: 0;
  color: var(--color-soft-text);
  font-weight: 700;
}

.price-card strong {
  display: block;
  color: var(--color-text);
  font-size: 3rem;
  line-height: 1.1;
}

.final-cta {
  padding-top: 0;
}

.cta-panel {
  padding: clamp(2rem, 7vw, 4rem);
  border-radius: var(--radius-lg);
  background: linear-gradient(135deg, #16356f 0%, #2864e0 58%, #12a88a 100%);
  color: white;
  text-align: center;
}

.cta-panel h2 {
  max-width: 680px;
  margin-inline: auto;
}

.cta-panel p {
  max-width: 560px;
  margin-inline: auto;
  margin-bottom: 1.5rem;
  color: rgba(255, 255, 255, 0.82);
}

.site-footer {
  border-top: 1px solid var(--color-line);
  background: var(--color-surface);
}

.footer-inner {
  display: grid;
  gap: 1rem;
  padding-block: 1.5rem;
  font-size: 0.92rem;
}

.footer-inner p {
  margin: 0;
}

.footer-inner div {
  display: flex;
  flex-wrap: wrap;
  gap: 0.9rem;
}

.footer-inner a:hover {
  color: var(--color-primary-dark);
}

@media (min-width: 720px) {
  .feature-grid,
  .steps-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .footer-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
  }
}

@media (min-width: 900px) {
  .nav-toggle {
    display: none;
  }

  .nav-menu {
    position: static;
    display: flex;
    align-items: center;
    gap: 0.25rem;
    padding: 0;
    border: 0;
    background: transparent;
    box-shadow: none;
  }

  .nav-menu a {
    padding: 0.45rem 0.7rem;
    font-size: 0.95rem;
  }

  .nav-cta {
    display: inline-flex;
  }

  .hero-grid,
  .benefits-grid {
    grid-template-columns: minmax(0, 1.02fr) minmax(360px, 0.78fr);
  }

  .app-mockup {
    transform: rotate(1.5deg);
  }

  .feature-grid {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

  .steps-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .pricing-panel {
    grid-template-columns: 1fr 260px;
  }
}