/* ============================================
   Tokens
   ============================================ */
:root {
  --color-primary: #007991;
  --color-primary-dark: #005f70;
  --color-primary-foreground: #ffffff;
  --color-accent: #a1d2bb;
  --color-accent-dark: #7ab89b;

  --color-ink: #142125;
  --color-ink-soft: #4b5b60;
  --color-bg: #ffffff;
  --color-bg-soft: #f4f9f9;
  --color-border: #e2e9e9;

  --font-body: "Raleway", sans-serif;

  --max-width: 1160px;
  --radius-sm: 8px;
  --radius-md: 14px;
  --radius-lg: 24px;

  --shadow-sm: 0 1px 3px rgba(20, 33, 37, 0.06);
  --shadow-md: 0 12px 30px rgba(20, 33, 37, 0.08);
  --shadow-lg: 0 24px 60px rgba(20, 33, 37, 0.12);

  --transition: all 300ms ease;
}

/* ============================================
   Reset & base
   ============================================ */
* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }
  * {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
}

body {
  margin: 0;
  font-family: var(--font-body);
  color: var(--color-ink);
  background: var(--color-bg);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

h1, h2, h3, h4 {
  font-weight: 700;
  line-height: 1.2;
  margin: 0 0 0.6em;
  letter-spacing: -0.01em;
}

p {
  margin: 0 0 1em;
  color: var(--color-ink-soft);
}

ul {
  list-style: none;
  margin: 0;
  padding: 0;
}

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

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

.container {
  width: 100%;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 24px;
}

.skip-link {
  position: absolute;
  left: -999px;
  top: 0;
  background: var(--color-primary);
  color: #fff;
  padding: 12px 20px;
  border-radius: 0 0 var(--radius-sm) 0;
  z-index: 1000;
}

.skip-link:focus {
  left: 0;
}

:focus-visible {
  outline: 2px solid var(--color-primary);
  outline-offset: 3px;
}

/* ============================================
   Buttons
   ============================================ */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 24px;
  border-radius: var(--radius-sm);
  font-family: var(--font-body);
  font-weight: 600;
  font-size: 0.95rem;
  border: 1px solid transparent;
  cursor: pointer;
  transition: var(--transition);
  white-space: nowrap;
}

.btn-primary {
  background: var(--color-primary);
  color: var(--color-primary-foreground);
}

.btn-primary:hover {
  background: var(--color-primary-dark);
  transform: translateY(-1px);
  box-shadow: var(--shadow-sm);
}

.btn-secondary {
  background: transparent;
  color: var(--color-primary);
  border-color: var(--color-border);
}

.btn-secondary:hover {
  border-color: var(--color-primary);
  background: var(--color-bg-soft);
  transform: translateY(-1px);
}

.btn-lg {
  padding: 14px 28px;
  font-size: 1rem;
}

.btn-block {
  width: 100%;
}

/* ============================================
   Header
   ============================================ */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(255, 255, 255, 0.85);
  backdrop-filter: saturate(180%) blur(12px);
  border-bottom: 1px solid transparent;
  transition: var(--transition);
}

.site-header.is-scrolled {
  border-bottom-color: var(--color-border);
  box-shadow: var(--shadow-sm);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 76px;
}

.logo {
  display: flex;
  align-items: center;
  gap: 10px;
}

.logo-text {
  font-weight: 800;
  font-size: 1.25rem;
  color: var(--color-ink);
}

.logo-text-light {
  color: #fff;
}

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

.nav-links {
  display: flex;
  align-items: center;
  gap: 28px;
}

.nav-links a {
  font-weight: 600;
  font-size: 0.95rem;
  color: var(--color-ink-soft);
  transition: var(--transition);
  position: relative;
}

.nav-links a:hover {
  color: var(--color-primary);
}

.nav-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 40px;
  height: 40px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 0;
}

.nav-toggle span {
  display: block;
  height: 2px;
  width: 100%;
  background: var(--color-ink);
  border-radius: 2px;
  transition: var(--transition);
}

/* ============================================
   Hero
   ============================================ */
.hero {
  padding: 96px 0 80px;
  background: linear-gradient(180deg, var(--color-bg-soft) 0%, var(--color-bg) 100%);
  overflow: hidden;
}

.hero-inner {
  display: grid;
  grid-template-columns: 1.05fr 0.95fr;
  gap: 56px;
  align-items: center;
}

.hero h1 {
  font-size: clamp(2.1rem, 4vw, 3.1rem);
  color: var(--color-ink);
  max-width: 22ch;
}

.hero-sub {
  font-size: 1.1rem;
  max-width: 46ch;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  margin: 28px 0 16px;
}

.hero-note {
  font-size: 0.85rem;
  color: var(--color-ink-soft);
  margin: 0;
}

.hero-visual {
  position: relative;
  min-height: 380px;
}

.blob {
  position: absolute;
  border-radius: 50%;
  filter: blur(6px);
  opacity: 0.55;
}

.blob-a {
  width: 260px;
  height: 260px;
  background: var(--color-accent);
  top: -40px;
  right: -20px;
}

.blob-b {
  width: 180px;
  height: 180px;
  background: var(--color-primary);
  opacity: 0.12;
  bottom: -30px;
  left: 10px;
}

.mock-card {
  position: relative;
  background: #fff;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
  padding: 24px;
  max-width: 400px;
  margin: 20px auto 0;
  border: 1px solid var(--color-border);
}

.mock-card-header {
  display: flex;
  align-items: center;
  gap: 6px;
  margin-bottom: 18px;
}

.mock-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--color-border);
}

.mock-title {
  margin-left: 10px;
  font-weight: 700;
  font-size: 0.85rem;
  color: var(--color-ink);
}

.mock-row {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 12px 0;
  border-top: 1px solid var(--color-border);
}

.mock-row:first-of-type {
  border-top: none;
}

.mock-avatar {
  width: 34px;
  height: 34px;
  border-radius: 50%;
  background: var(--color-bg-soft);
  border: 1px solid var(--color-border);
  flex-shrink: 0;
}

.mock-lines {
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.mock-lines span {
  display: block;
  height: 8px;
  border-radius: 4px;
  background: var(--color-bg-soft);
}

.mock-lines .short {
  width: 60%;
}

.mock-tag {
  font-size: 0.72rem;
  font-weight: 700;
  padding: 4px 10px;
  border-radius: 999px;
  white-space: nowrap;
}

.mock-tag-done {
  background: rgba(161, 210, 187, 0.4);
  color: #1f5c40;
}

.mock-tag-next {
  background: rgba(0, 121, 145, 0.12);
  color: var(--color-primary);
}

.mock-tag-upcoming {
  background: var(--color-bg-soft);
  color: var(--color-ink-soft);
}

/* ============================================
   Section shared
   ============================================ */
section {
  padding: 96px 0;
}

.section-head {
  max-width: 640px;
  margin: 0 auto 56px;
  text-align: center;
}

.section-head h2 {
  font-size: clamp(1.7rem, 3vw, 2.3rem);
}

.section-sub {
  font-size: 1.05rem;
}

/* ============================================
   Features
   ============================================ */
.features-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
}

.feature-card {
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 32px 28px;
  transition: var(--transition);
}

.feature-card:hover {
  box-shadow: var(--shadow-md);
  transform: translateY(-4px);
  border-color: transparent;
}

.feature-icon {
  width: 52px;
  height: 52px;
  border-radius: var(--radius-sm);
  background: rgba(0, 121, 145, 0.1);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 20px;
}

.feature-icon svg {
  width: 26px;
  height: 26px;
}

.feature-card h3 {
  font-size: 1.15rem;
  margin-bottom: 10px;
}

.feature-card p {
  margin: 0;
  font-size: 0.98rem;
}

/* ============================================
   About
   ============================================ */
.about {
  background: var(--color-bg-soft);
}

.about-inner {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 56px;
  align-items: center;
}

.trust-badges {
  display: flex;
  flex-direction: column;
  gap: 14px;
  margin-top: 24px;
}

.trust-badges li {
  display: flex;
  align-items: center;
  gap: 12px;
  font-weight: 600;
  color: var(--color-ink);
  font-size: 0.95rem;
}

.badge-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--color-accent);
  border: 2px solid var(--color-primary);
  flex-shrink: 0;
}

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

.stat-card {
  background: var(--color-primary);
  color: #fff;
  border-radius: var(--radius-lg);
  padding: 32px;
  box-shadow: var(--shadow-md);
}

.stat-card-alt {
  background: #fff;
  color: var(--color-ink);
  border: 1px solid var(--color-border);
}

.stat-number {
  display: block;
  font-size: 2.4rem;
  font-weight: 800;
  margin-bottom: 6px;
}

.stat-label {
  font-size: 0.95rem;
  opacity: 0.9;
}

.stat-card-alt .stat-label {
  color: var(--color-ink-soft);
  opacity: 1;
}

/* ============================================
   Contact
   ============================================ */
.contact {
  background: var(--color-bg-soft);
}

.contact-email-wrap {
  display: flex;
  justify-content: center;
}

/* ============================================
   Footer
   ============================================ */
.site-footer {
  background: var(--color-ink);
  color: rgba(255, 255, 255, 0.7);
  padding-top: 72px;
}

.footer-top {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr 1fr 1fr;
  gap: 32px;
  padding-bottom: 56px;
}

.footer-brand p {
  color: rgba(255, 255, 255, 0.6);
  font-size: 0.9rem;
  margin-top: 14px;
  max-width: 26ch;
}

.footer-col h3 {
  color: #fff;
  font-size: 0.9rem;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  margin-bottom: 18px;
}

.footer-col ul {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.footer-col a {
  font-size: 0.92rem;
  color: rgba(255, 255, 255, 0.65);
  transition: var(--transition);
}

.footer-col a:hover {
  color: var(--color-accent);
}

.footer-bottom {
  display: flex;
  justify-content: space-between;
  align-items: center;
  border-top: 1px solid rgba(255, 255, 255, 0.12);
  padding: 24px 0;
  font-size: 0.85rem;
}

.footer-bottom p {
  margin: 0;
  color: rgba(255, 255, 255, 0.5);
}

/* ============================================
   Scroll fade-in
   ============================================ */
.fade-in {
  opacity: 0;
  transform: translateY(16px);
  transition: opacity 700ms ease, transform 700ms ease;
}

.fade-in.is-visible {
  opacity: 1;
  transform: translateY(0);
}

/* ============================================
   Responsive
   ============================================ */
@media (max-width: 960px) {
  .hero-inner,
  .about-inner {
    grid-template-columns: 1fr;
  }

  .hero-visual {
    order: -1;
    min-height: 320px;
  }

  .footer-top {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 760px) {
  section {
    padding: 64px 0;
  }

  .hero {
    padding: 48px 0 56px;
  }

  .nav-toggle {
    display: flex;
  }

  .primary-nav {
    position: fixed;
    top: 76px;
    left: 0;
    right: 0;
    background: #fff;
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    padding: 12px 24px 28px;
    border-bottom: 1px solid var(--color-border);
    box-shadow: var(--shadow-md);
    transform: translateY(-12px);
    opacity: 0;
    pointer-events: none;
    transition: var(--transition);
  }

  .primary-nav.is-open {
    transform: translateY(0);
    opacity: 1;
    pointer-events: auto;
  }

  .nav-links {
    flex-direction: column;
    align-items: flex-start;
    gap: 4px;
    width: 100%;
  }

  .nav-links a {
    display: block;
    width: 100%;
    padding: 12px 0;
    border-bottom: 1px solid var(--color-border);
  }

  .nav-cta {
    margin-top: 16px;
    width: 100%;
  }

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

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

  .footer-bottom {
    flex-direction: column;
    gap: 8px;
    text-align: center;
  }
}

@media (max-width: 480px) {
  .hero-actions {
    flex-direction: column;
  }

  .hero-actions .btn {
    width: 100%;
  }
}