/* ============================================================
   TOPBAR
   ============================================================ */
.topbar {
  position: sticky;
  top: 0;
  z-index: 1100;
  background: rgba(255, 255, 255, 0.85);
  backdrop-filter: blur(20px) saturate(180%);
  -webkit-backdrop-filter: blur(20px) saturate(180%);
  border-bottom: 1px solid rgba(223, 232, 241, 0.6);
  transition: all var(--transition);
}

.topbar.scrolled {
  box-shadow: var(--shadow-md);
  background: rgba(255, 255, 255, 0.95);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 12px 0;
  max-width: 1280px;
  margin: 0 auto;
  padding-left: 24px;
  padding-right: 24px;
}

/* Brand */
.brand {
  display: flex;
  align-items: center;
}

.brand-logo {
  height: 42px;
  width: auto;
  object-fit: contain;
  display: block;
  transition: transform var(--transition);
}

.brand-logo:hover {
  transform: scale(1.03);
}

/* Nav */
.nav {
  display: flex;
  gap: 8px;
  align-items: center;
}

.nav-link {
  position: relative;
  color: var(--text-secondary);
  text-decoration: none;
  padding: 10px 20px;
  border-radius: var(--radius-sm);
  font-weight: 600;
  font-size: 14px;
  transition: all var(--transition);
  border: 1px solid transparent;
  letter-spacing: 0.01em;
}

.nav-link:hover {
  color: var(--navy);
  background: rgba(30, 58, 95, 0.05);
  border-color: var(--border);
}

.nav-link.active {
  color: #fff;
  background: var(--grad-brand);
  border-color: transparent;
  box-shadow: 0 4px 16px rgba(30, 58, 95, 0.2);
}

.page-title {
  margin: 32px 0 16px;
  font-size: 28px;
  font-weight: 800;
  color: var(--navy);
  letter-spacing: -0.02em;
  animation: fadeInUp 0.5s ease-out;
}

/* ============================================================
   HERO
   ============================================================ */
.hero {
  position: relative;
  display: flex;
  gap: 48px;
  align-items: center;
  margin-top: 32px;
  padding: 56px 48px;
  border-radius: 24px;
  background: var(--grad-surface);
  border: 1px solid var(--border);
  box-shadow: var(--shadow-lg);
  overflow: hidden;
}

/* Animated background blobs */
.hero::before,
.hero::after {
  content: '';
  position: absolute;
  border-radius: 50%;
  filter: blur(80px);
  opacity: 0.15;
  z-index: 0;
  pointer-events: none;
}

.hero::before {
  width: 400px;
  height: 400px;
  background: var(--green);
  top: -100px;
  right: -80px;
  animation: blob-move 15s ease-in-out infinite;
}

.hero::after {
  width: 350px;
  height: 350px;
  background: var(--navy);
  bottom: -120px;
  left: -60px;
  animation: blob-move 18s ease-in-out infinite reverse;
}

.hero-content {
  flex: 1;
  position: relative;
  z-index: 1;
  animation: slideInLeft 0.8s ease-out;
}

.hero h1 {
  margin: 0;
  font-size: 40px;
  font-weight: 900;
  letter-spacing: -0.03em;
  line-height: 1.15;
  background: var(--grad-brand);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.subtitle {
  margin: 12px 0 28px;
  color: var(--text-secondary);
  font-size: 17px;
  font-weight: 500;
  line-height: 1.5;
}

.hero-actions {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
}

/* Hero stats */
.hero-stats {
  display: flex;
  gap: 32px;
  margin-top: 32px;
  flex-wrap: wrap;
}

.hero-stat {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.hero-stat .stat-value {
  font-size: 24px;
  font-weight: 800;
  color: var(--navy);
  letter-spacing: -0.02em;
}

.hero-stat .stat-label {
  font-size: 13px;
  color: var(--text-muted);
  font-weight: 500;
}

.hero-illustration {
  width: 340px;
  flex-shrink: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  z-index: 1;
  animation: slideInRight 0.8s ease-out;
}

.hero-logo {
  max-width: 300px;
  width: 100%;
  display: block;
  animation: float 6s ease-in-out infinite;
  filter: drop-shadow(0 20px 40px rgba(30, 58, 95, 0.12));
}


/* ============================================================
   FEATURE CARDS
   ============================================================ */
.features {
  display: grid;
  gap: 20px;
  grid-template-columns: repeat(3, 1fr);
  margin: 40px 0;
}

.card {
  position: relative;
  background: var(--surface);
  border: 1px solid var(--border);
  padding: 28px 24px;
  border-radius: var(--radius);
  box-shadow: var(--shadow-sm);
  transition: all var(--transition);
  overflow: hidden;
  animation: fadeInUp 0.6s ease-out both;
}

.card:nth-child(1) { animation-delay: 0.1s; }
.card:nth-child(2) { animation-delay: 0.2s; }
.card:nth-child(3) { animation-delay: 0.3s; }

.card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: var(--grad-green);
  opacity: 0;
  transition: opacity var(--transition);
}

.card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-lg);
  border-color: var(--border-hover);
}

.card:hover::before {
  opacity: 1;
}

.card-icon {
  width: 48px;
  height: 48px;
  border-radius: 12px;
  background: linear-gradient(135deg, rgba(76, 175, 80, 0.1), rgba(30, 58, 95, 0.08));
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 16px;
  color: var(--green);
  transition: all var(--transition);
}

.card:hover .card-icon {
  background: var(--grad-green);
  color: #fff;
  transform: scale(1.05);
}

.card-icon svg {
  width: 24px;
  height: 24px;
}

.card h3 {
  margin: 0 0 8px;
  font-size: 18px;
  font-weight: 700;
  color: var(--navy);
}

.card p {
  color: var(--text-secondary);
  font-size: 14px;
  line-height: 1.6;
}

/* ============================================================
   LONG ARTICLE / WHO CAN USE
   ============================================================ */
.long-article {
  margin: 48px 0 56px;
}

.article-inner {
  padding: 40px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 24px;
  box-shadow: var(--shadow-md);
}

.long-article h2 {
  font-size: 32px;
  font-weight: 900;
  color: var(--navy);
  letter-spacing: -0.03em;
  margin-bottom: 8px;
}

.long-article .lead {
  color: var(--text-secondary);
  font-size: 16px;
  margin-bottom: 28px;
  line-height: 1.7;
  max-width: 800px;
}

/* Info cards grid */
.cards-row {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
  margin-bottom: 28px;
}

.info-card {
  position: relative;
  padding: 24px 24px 24px 28px;
  border-radius: var(--radius);
  background: var(--grad-surface);
  border: 1px solid var(--border);
  box-shadow: var(--shadow-sm);
  transition: all var(--transition);
  display: flex;
  flex-direction: column;
  overflow: hidden;
}

.info-card::before {
  content: '';
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 4px;
  background: var(--grad-green);
  transition: width var(--transition);
}

.info-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
  border-color: var(--border-hover);
}

.info-card:hover::before {
  width: 5px;
}

.info-card h3 {
  margin: 0 0 8px;
  font-size: 17px;
  font-weight: 700;
  color: var(--navy);
}

.info-card .brief {
  color: var(--text-secondary);
  margin-bottom: 8px;
  line-height: 1.6;
  font-size: 14px;
}

.info-card .full-text {
  color: var(--text-secondary);
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.4s cubic-bezier(0.4, 0, 0.2, 1), padding 0.3s ease;
  padding-top: 0;
  font-size: 14px;
  line-height: 1.6;
}

.info-card .full-text.open {
  max-height: 300px;
  padding-top: 8px;
}

/* Article separators and blocks */
.article-sep {
  height: 1px;
  background: var(--border);
  border: none;
  margin: 28px 0;
}

.article-block h3 {
  margin-top: 0;
  font-size: 22px;
  font-weight: 800;
  color: var(--navy);
  letter-spacing: -0.01em;
}

.summary ul {
  margin: 14px 0 10px 20px;
  color: var(--text-secondary);
  line-height: 1.8;
  font-size: 15px;
}

.summary li {
  margin: 4px 0;
}

.full-article {
  color: var(--text-secondary);
  line-height: 1.7;
  font-size: 15px;
}

.full-article p {
  margin-bottom: 14px;
}

/* Tips */
.tips h3 {
  margin-top: 10px;
  font-size: 20px;
  font-weight: 800;
  color: var(--navy);
}

.tips ol {
  margin-left: 20px;
  color: var(--text);
  line-height: 1.8;
  font-size: 15px;
}

.tips li {
  margin: 6px 0;
  padding-left: 4px;
}

/* ============================================================
   FOOTER
   ============================================================ */
.site-footer {
  background: rgb(21, 45, 74);
  color: #c8d8ec;
  padding: 64px 0 32px;
  margin-top: 64px;
  position: relative;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.footer-columns {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr;
  gap: 48px;
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 24px;
  align-items: start;
}

.brand-col {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.footer-brand-logo {
  height: 36px;
  object-fit: contain;
}

.brand-desc {
  font-size: 14px;
  line-height: 1.6;
  color: #a0b4cc;
  max-width: 380px;
}

.site-footer .col h4 {
  margin: 0 0 20px;
  color: #ffffff;
  font-size: 15px;
  font-weight: 700;
  letter-spacing: 0.03em;
  text-transform: uppercase;
}

.site-footer .col ul {
  list-style: none;
  padding: 0;
  margin: 0;
  color: #a0b4cc;
  line-height: 2.2;
  font-size: 14px;
}

.site-footer .col ul li a {
  color: #a0b4cc;
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  transition: all var(--transition);
}

.site-footer .col ul li a:hover {
  color: #ffffff;
  transform: translateX(4px);
}

.footer-link-icon {
  width: 16px;
  height: 16px;
  stroke-width: 2px;
  opacity: 0.7;
  transition: opacity var(--transition);
}

.site-footer .col ul li a:hover .footer-link-icon {
  opacity: 1;
}

/* Footer bottom */
.footer-bottom {
  max-width: 1280px;
  margin: 0 auto;
  padding: 24px 24px 0;
  border-top: 1px solid rgba(255, 255, 255, 0.06);
  margin-top: 48px;
}

.footer-bottom-inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 16px;
}

.copyright {
  font-size: 13px;
  color: #8fa4bc;
}

.copyright strong {
  color: #ffffff;
}

.footer-pills-container {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-wrap: wrap;
}

.status-pill,
.email-pill {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  background: rgba(255, 255, 255, 0.04);
  padding: 8px 16px;
  border-radius: 99px;
  border: 1px solid rgba(255, 255, 255, 0.08);
  font-size: 13px;
  color: #c8d8ec;
  transition: all var(--transition);
}

.email-pill:hover {
  background: rgba(255, 255, 255, 0.08);
  border-color: rgba(255, 255, 255, 0.15);
}

.status-dot-green {
  width: 8px;
  height: 8px;
  background-color: var(--green);
  border-radius: 50%;
  box-shadow: 0 0 0 0 rgba(76, 175, 80, 0.4);
  animation: pulse-ring 2s infinite;
}

.status-text {
  font-weight: 600;
  color: #ffffff;
  font-size: 12px;
  letter-spacing: 0.02em;
  text-transform: uppercase;
}

.email-pill .email-link {
  color: var(--green-light);
  text-decoration: none;
  font-weight: 500;
  transition: color var(--transition);
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

.email-pill .email-link:hover {
  color: #ffffff;
}

/* ============================================================
   RESPONSIVE (Layout)
   ============================================================ */
@media (max-width: 1100px) {
  .hero {
    flex-direction: column;
    padding: 40px 32px;
    gap: 32px;
    text-align: center;
  }

  .hero-actions {
    justify-content: center;
  }

  .hero-content {
    order: 2;
  }

  .hero-illustration {
    order: 1;
    width: 240px;
  }

  .hero-stats {
    justify-content: center;
  }

  .hero h1 {
    font-size: 32px;
  }

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

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

  .footer-columns {
    grid-template-columns: repeat(2, 1fr);
    gap: 28px;
  }
}

@media (max-width: 700px) {
  .hero {
    padding: 32px 20px;
    margin-top: 16px;
    border-radius: 16px;
  }

  .hero h1 {
    font-size: 26px;
  }

  .hero-illustration {
    width: 180px;
  }

  .hero-stats {
    gap: 20px;
  }

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

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

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

  .article-inner {
    padding: 24px 18px;
  }

  .page-title {
    font-size: 22px;
  }

  .header-inner {
    padding-left: 16px;
    padding-right: 16px;
  }
}

@media (max-width: 480px) {
  .hero-stats {
    flex-direction: column;
    gap: 12px;
    align-items: center;
  }

  .brand-logo {
    height: 36px;
  }

  .nav-link {
    padding: 8px 14px;
    font-size: 13px;
  }
}