/* ============ Design tokens ============ */
:root {
  --primary: #0f4c81;
  --primary-50: #eef5fb;
  --primary-100: #d6e6f3;
  --primary-200: #aed0e8;
  --primary-700: #0a355b;
  --navy: #0a2540;
  --navy-800: #0a2540;
  --emerald: #00a86b;
  --emerald-50: #e6f8ef;
  --emerald-600: #009660;
  --surface: #f8fafc;
  --ink: #0f172a;
  --muted: #64748b;
  --border-color: #e2e8f0;
  --red-600: #dc2626;
  --shadow-soft:
    0 2px 8px -2px rgba(10, 37, 64, 0.08),
    0 4px 16px -4px rgba(10, 37, 64, 0.06);
  --shadow-card:
    0 1px 2px rgba(10, 37, 64, 0.04), 0 8px 24px -8px rgba(10, 37, 64, 0.08);
  --shadow-hover: 0 12px 32px -8px rgba(10, 37, 64, 0.16);
  --shadow-glow:
    0 0 0 1px rgba(0, 168, 107, 0.15), 0 8px 24px -8px rgba(0, 168, 107, 0.25);
}

* {
  box-sizing: border-box;
}
html {
  scroll-behavior: smooth;
}
body {
  margin: 0;
  font-family: "Inter", ui-sans-serif, system-ui, sans-serif;
  background: var(--surface);
  color: var(--ink);
  -webkit-font-smoothing: antialiased;
}
img,
svg {
  display: block;
  max-width: 100%;
}
a {
  color: inherit;
  text-decoration: none;
}
ul {
  list-style: none;
  margin: 0;
  padding: 0;
}
button {
  font: inherit;
  cursor: pointer;
}
::selection {
  background-color: var(--emerald);
  color: #fff;
}
:focus-visible {
  outline: 2px solid var(--emerald);
  outline-offset: 2px;
}

.container {
  width: 100%;
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 1.5rem;
}
@media (min-width: 768px) {
  .container {
    padding: 0 2.5rem;
  }
}
@media (min-width: 1024px) {
  .container {
    padding: 0 4rem;
  }
}

.section {
  padding: 5rem 0;
}
.section-tight {
  padding: 5rem 0 0;
}
.section-white {
  background: #fff;
}
@media (min-width: 768px) {
  .section {
    padding: 7rem 0;
  }
  .section-tight {
    padding: 7rem 0 0;
  }
}

.icon-sm svg,
.icon-sm {
  width: 16px;
  height: 16px;
}
.icon-md svg,
.icon-md {
  width: 28px;
  height: 28px;
}
[data-lucide] {
  width: 1.15em;
  height: 1.15em;
  stroke-width: 2;
  vertical-align: -2px;
}

/* ============ Buttons ============ */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.75rem 1.5rem;
  border-radius: 0.75rem;
  font-weight: 600;
  font-size: 0.9rem;
  border: 1px solid transparent;
  transition: all 0.3s ease;
  white-space: nowrap;
}
.btn-lg {
  padding: 0.95rem 2rem;
  font-size: 1rem;
}
.btn-sm {
  padding: 0.5rem 1rem;
  font-size: 0.825rem;
}
.btn-primary {
  background: var(--primary);
  color: #fff;
}
.btn-primary:hover {
  background: var(--primary-700);
}
.btn-emerald {
  background: var(--emerald);
  color: #fff;
}
.btn-emerald:hover {
  background: var(--emerald-600);
}
.btn-outline {
  background: #fff;
  color: var(--ink);
  border-color: var(--border-color);
}
.btn-outline:hover {
  border-color: var(--primary);
  color: var(--primary);
}
.btn-ghost {
  background: transparent;
  color: var(--ink);
}
.btn-ghost:hover {
  background: var(--primary-50);
  color: var(--primary);
}
.btn-link {
  background: none;
  color: var(--primary);
  padding: 0;
  font-weight: 600;
}
.btn[disabled] {
  opacity: 0.6;
  pointer-events: none;
}
.btn-full {
  width: 100%;
}

/* ============ Badges ============ */
.badge {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  padding: 0.3rem 0.85rem;
  border-radius: 999px;
  font-size: 1.5rem;
  font-weight: 700;
}
.badge-emerald {
  background: var(--emerald-50);
  color: var(--emerald-600);
}
.badge-primary {
  background: var(--primary-50);
  color: var(--primary);
}
.badge-outline {
  background: #fff;
  border: 1px solid var(--border-color);
  color: var(--ink);
}

/* ============ Card ============ */
.card {
  background: #fff;
  border-radius: 1rem;
  border: 1px solid var(--border-color);
  box-shadow: var(--shadow-card);
}
.card-hover {
  transition: all 0.3s ease;
}
.card-hover:hover {
  box-shadow: var(--shadow-hover);
  transform: translateY(-4px);
}
.card-pad {
  padding: 1.75rem;
}

/* ============ Header / Navbar ============ */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 50;
  background: rgba(255, 255, 255, 0.85);
  backdrop-filter: blur(8px);
  transition: all 0.3s ease;
}
.site-header.scrolled {
  background: rgba(255, 255, 255, 0.95);
  box-shadow: var(--shadow-soft);
  border-bottom: 1px solid rgba(226, 232, 240, 0.6);
}
.navbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 5rem;
}
.brand {
  display: flex;
  align-items: center;
  gap: 0.65rem;
  font-weight: 700;
  font-size: 1.1rem;
  color: var(--navy);
  flex-shrink: 0;
}
.brand img {
  display: flex;
  height: 7rem;
  width: 7rem;
  align-items: center;
  justify-content: center;
  margin-top: .5rem;
}
.nav-links {
  display: none;
  align-items: center;
  gap: 0.25rem;
}
.nav-link {
  padding: 0.65rem 1rem;
  border-radius: 0.5rem;
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--ink);
  transition: color 0.3s ease;
  background: none;
  border: none;
  display: inline-flex;
  align-items: center;
  gap: 0.25rem;
}
.nav-link:hover,
.nav-link.active {
  color: var(--primary);
}
.chevron {
  width: 16px;
  height: 16px;
  transition: transform 0.3s ease;
}
.nav-mega {
  position: relative;
}
.nav-mega.open .chevron {
  transform: rotate(180deg);
}
.mega-panel {
  position: absolute;
  left: 50%;
  transform: translateX(-50%);
  top: 100%;
  padding-top: 0.75rem;
  width: 640px;
  max-width: 90vw;
  opacity: 0;
  visibility: hidden;
  translate: 0 8px;
  transition: all 0.2s ease;
}
.nav-mega.open .mega-panel,
.nav-mega:hover .mega-panel {
  opacity: 1;
  visibility: visible;
  translate: 0 0;
}
.mega-grid {
  border-radius: 1rem;
  border: 1px solid var(--border-color);
  background: #fff;
  box-shadow: var(--shadow-hover);
  padding: 1.5rem;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.5rem;
}
.mega-item {
  display: flex;
  align-items: flex-start;
  gap: 0.75rem;
  border-radius: 0.75rem;
  padding: 0.75rem;
  transition: background 0.3s ease;
}
.mega-item:hover {
  background: var(--surface);
}
.mega-icon {
  display: flex;
  height: 2.25rem;
  width: 2.25rem;
  flex-shrink: 0;
  align-items: center;
  justify-content: center;
  border-radius: 0.5rem;
  background: var(--primary-50);
  color: var(--primary);
}
.mega-item-title {
  display: block;
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--ink);
}
.mega-item-desc {
  display: block;
  font-size: 0.75rem;
  color: var(--muted);
  margin-top: 0.125rem;
}
.mega-cta {
  border-radius: 1rem;
  border: 1px solid var(--border-color);
  background: rgba(238, 245, 251, 0.6);
  margin-top: 0.5rem;
  padding: 1rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.mega-cta a {
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--primary);
  display: inline-flex;
  align-items: center;
  gap: 0.25rem;
}
.nav-actions {
  display: none;
  align-items: center;
  gap: 0.75rem;
}
.user-pill {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--ink);
}
.user-pill-icon {
  display: flex;
  height: 2rem;
  width: 2rem;
  align-items: center;
  justify-content: center;
  border-radius: 999px;
  background: var(--primary-50);
  color: var(--primary);
}
.mobile-toggle {
  display: inline-flex;
  padding: 0.5rem;
  border-radius: 0.5rem;
  background: none;
  border: none;
  color: var(--ink);
}
.mobile-menu {
  display: none;
  overflow: hidden;
  background: #fff;
  border-top: 1px solid var(--border-color);
  flex-direction: column;
  padding: 1rem 1.5rem;
  gap: 0.25rem;
}
.mobile-menu.open {
  display: flex;
}
.mobile-link {
  padding: 0.85rem 0.75rem;
  border-radius: 0.5rem;
  font-weight: 500;
}
.mobile-link.active {
  background: var(--primary-50);
  color: var(--primary);
}
.mobile-actions {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  margin-top: 0.75rem;
  padding-top: 0.75rem;
  border-top: 1px solid var(--border-color);
}

@media (min-width: 1024px) {
  .nav-links {
    display: flex;
  }
  .nav-actions {
    display: flex;
  }
  .mobile-toggle {
    display: none;
  }
  .mobile-menu {
    display: none !important;
  }
}

.site-main {
  display: block;
  min-height: 60vh;
}

/* ============ Hero ============ */
.hero {
  position: relative;
  padding: 8rem 0 5rem;
  overflow: hidden;
}
.hero::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: -1;
  background: linear-gradient(
    to bottom,
    rgba(238, 245, 251, 0.6),
    var(--surface) 60%,
    var(--surface)
  );
}
.hero-grid {
  display: grid;
  gap: 3.5rem;
  align-items: center;
}
.hero-title {
  margin-top: 1.5rem;
  font-size: 2.5rem;
  line-height: 1.1;
  font-weight: 800;
  letter-spacing: -0.02em;
  color: var(--ink);
}
.hero-title .danger {
  color: var(--red-600);
}
.hero-desc {
  margin-top: 1.5rem;
  font-size: 1.125rem;
  color: var(--muted);
  line-height: 1.7;
  max-width: 36rem;
}
.hero-actions {
  margin-top: 2.25rem;
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
}
.hero-trust {
  margin-top: 3rem;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 1.5rem;
  font-size: 0.9rem;
  color: var(--muted);
}
.hero-trust-logos {
  display: flex;
  gap: 1.25rem;
  font-weight: 600;
  color: rgba(15, 23, 42, 0.7);
  flex-wrap: wrap;
}
@media (min-width: 1024px) {
  .hero {
    padding: 10rem 0 7rem;
  }
  .hero-grid {
    grid-template-columns: 1fr 1fr;
  }
  .hero-title {
    font-size: 3.4rem;
  }
}

.hero-graphic {
  position: relative;
  width: 100%;
  max-width: 480px;
  margin: 0 auto;
  aspect-ratio: 1 / 1;
}

/* ============ Page hero (inner pages) ============ */
.page-hero {
  position: relative;
  padding: 8rem 0 4rem;
  text-align: center;
  background: linear-gradient(
    to bottom,
    rgba(238, 245, 251, 0.5),
    var(--surface)
  );
}
.page-hero-inner {
  max-width: 48rem;
  margin: 0 auto;
}
.page-hero h1 {
  margin-top: 1.25rem;
  font-size: 2.4rem;
  font-weight: 800;
  letter-spacing: -0.02em;
  color: var(--ink);
}
.page-hero p {
  margin-top: 1.25rem;
  font-size: 1.1rem;
  color: var(--muted);
  line-height: 1.7;
}
@media (min-width: 768px) {
  .page-hero {
    padding: 10rem 0 5rem;
  }
  .page-hero h1 {
    font-size: 3rem;
  }
}

/* ============ Section headers ============ */
.eyebrow {
  font-size: 1.3rem;
  font-weight: 700;
  color: var(--emerald-600);
  text-transform: uppercase;
  letter-spacing: 0.08em;
}
.section-head {
  text-align: center;
  max-width: 42rem;
  margin: 0 auto;
}
.section-head h2 {
  margin-top: 0.75rem;
  font-size: 1.9rem;
  font-weight: 800;
  letter-spacing: -0.02em;
  color: var(--ink);
}
.section-head p {
  margin-top: 1rem;
  color: var(--muted);
}
@media (min-width: 768px) {
  .section-head h2 {
    font-size: 2.5rem;
  }
}

/* ============ Logo strip / marquee ============ */
.logo-strip {
  padding: 3.5rem 0;
  border-top: 1px solid var(--border-color);
  border-bottom: 1px solid var(--border-color);
  background: #fff;
  overflow: hidden;
}
.logo-strip-label {
  text-align: center;
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--muted);
  text-transform: uppercase;
  letter-spacing: 0.1em;
}
.marquee-track {
  margin-top: 2rem;
  display: flex;
  gap: 4rem;
  width: max-content;
  animation: marquee 30s linear infinite;
}
.marquee-track span {
  font-size: 1.25rem;
  font-weight: 700;
  color: #cbd5e1;
  white-space: nowrap;
}
@keyframes marquee {
  from {
    transform: translateX(0);
  }
  to {
    transform: translateX(-50%);
  }
}

/* ============ Grids ============ */
.grid-2 {
  display: grid;
  gap: 4rem;
  align-items: center;
}
.grid-cards {
  display: grid;
  gap: 1.5rem;
  margin-top: 3.5rem;
}
.cols-2 {
  grid-template-columns: 1fr;
}
.cols-3 {
  grid-template-columns: 1fr;
}
.cols-4 {
  grid-template-columns: 1fr;
}
@media (min-width: 640px) {
  .cols-2,
  .cols-3,
  .cols-4 {
    grid-template-columns: 1fr 1fr;
  }
}
@media (min-width: 1024px) {
  .grid-2 {
    grid-template-columns: 1fr 1fr;
  }
  .cols-3 {
    grid-template-columns: repeat(3, 1fr);
  }
  .cols-4 {
    grid-template-columns: repeat(4, 1fr);
  }
}

.icon-tile {
  display: flex;
  height: 3rem;
  width: 3rem;
  align-items: center;
  justify-content: center;
  border-radius: 0.75rem;
  background: var(--primary-50);
  color: var(--primary);
}
.feature-card h3 {
  margin-top: 1.25rem;
  font-size: 1.1rem;
  font-weight: 700;
}
.feature-card p {
  margin-top: 0.5rem;
  font-size: 0.9rem;
  color: var(--muted);
  line-height: 1.6;
}

.checklist {
  margin-top: 1.75rem;
  display: flex;
  flex-direction: column;
  gap: 0.9rem;
}
.checklist li {
  display: flex;
  align-items: flex-start;
  gap: 0.75rem;
}
.checklist svg,
.checklist [data-lucide] {
  color: var(--emerald);
  flex-shrink: 0;
  margin-top: 0.15rem;
}

/* ============ Service cards (grid + detail) ============ */
.service-card {
  padding: 1.75rem;
  display: flex;
  flex-direction: column;
  transition: all 0.3s ease;
}
.service-card:hover {
  border-color: var(--primary-200);
}
.service-card-top {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
}
.service-card .icon-tile {
  transition: all 0.3s ease;
}
.service-card:hover .icon-tile {
  background: var(--emerald);
  color: #fff;
}
.service-card h3 {
  margin-top: 1.25rem;
  font-size: 1.1rem;
  font-weight: 700;
}
.service-card p {
  margin-top: 0.5rem;
  font-size: 0.9rem;
  color: var(--muted);
  line-height: 1.6;
}

.service-detail {
  border-radius: 1rem;
  border: 1px solid var(--border-color);
  background: #fff;
  box-shadow: var(--shadow-card);
  overflow: hidden;
  scroll-margin-top: 7rem;
  margin-bottom: 2rem;
}
.service-detail-head {
  padding: 1.75rem;
  border-bottom: 1px solid #f1f5f9;
  display: flex;
  gap: 1.25rem;
  align-items: flex-start;
}
.service-detail-head .icon-tile {
  width: 3.5rem;
  height: 3.5rem;
  flex-shrink: 0;
}
.service-detail-head .num {
  font-size: 0.75rem;
  font-weight: 700;
  color: var(--emerald-600);
  text-transform: uppercase;
  letter-spacing: 0.06em;
}
.service-detail-head h3 {
  margin-top: 0.25rem;
  font-size: 1.4rem;
  font-weight: 800;
}
.service-detail-head p {
  margin-top: 0.5rem;
  color: var(--muted);
}
.service-detail-body {
  padding: 1.75rem;
  display: grid;
  gap: 2rem;
}
@media (min-width: 768px) {
  .service-detail-body {
    grid-template-columns: 1fr 1fr;
  }
  .service-detail-head,
  .service-detail-body {
    padding: 2.25rem;
  }
}
.detail-block {
  margin-bottom: 1.5rem;
}
.detail-block-label {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.875rem;
  font-weight: 700;
}
.detail-block-label.problem svg,
.detail-block-label.problem [data-lucide] {
  color: #ef4444;
}
.detail-block-label.solution svg,
.detail-block-label.solution [data-lucide] {
  color: var(--primary);
}
.detail-block-label.deliverables svg,
.detail-block-label.deliverables [data-lucide] {
  color: var(--emerald);
}
.detail-block-label.benefits svg,
.detail-block-label.benefits [data-lucide] {
  color: var(--emerald);
}
.detail-block p {
  margin-top: 0.5rem;
  font-size: 0.9rem;
  color: var(--muted);
  line-height: 1.6;
}
.tag-list {
  margin-top: 0.65rem;
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}
.benefit-list {
  margin-top: 0.65rem;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}
.benefit-list li {
  display: flex;
  align-items: flex-start;
  gap: 0.5rem;
  font-size: 0.9rem;
}
.benefit-list li::before {
  content: "";
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--emerald);
  margin-top: 0.55rem;
  flex-shrink: 0;
}

/* ============ Roadmap / journey ============ */
.roadmap-wrap {
  margin-top: 4rem;
  position: relative;
}
.roadmap-line {
  display: none;
  position: absolute;
  top: 1.75rem;
  left: 0;
  right: 0;
  height: 2px;
  background: var(--border-color);
}
.roadmap-line-fill {
  height: 100%;
  background: var(--emerald);
  transition: width 0.5s ease;
}
.roadmap-steps {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 2.5rem 1rem;
  position: relative;
}
@media (min-width: 768px) {
  .roadmap-line {
    display: block;
  }
  .roadmap-steps {
    grid-template-columns: repeat(6, 1fr);
  }
}
.roadmap-step {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  background: none;
  border: none;
}
.roadmap-dot {
  position: relative;
  z-index: 1;
  display: flex;
  height: 3.5rem;
  width: 3.5rem;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  border: 2px solid #cbd5e1;
  background: #fff;
  color: var(--muted);
  transition: all 0.3s ease;
}
.roadmap-step:hover .roadmap-dot {
  border-color: var(--primary);
  color: var(--primary);
}
.roadmap-step.active .roadmap-dot {
  background: var(--emerald);
  border-color: var(--emerald);
  color: #fff;
  box-shadow: var(--shadow-glow);
  transform: scale(1.1);
}
.roadmap-step.past .roadmap-dot {
  background: var(--emerald-50);
  border-color: var(--emerald);
  color: var(--emerald);
}
.roadmap-step-label {
  margin-top: 0.75rem;
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--ink);
}
.roadmap-step.active .roadmap-step-label {
  color: var(--emerald-600);
}
.roadmap-detail {
  margin-top: 3rem;
  max-width: 36rem;
  margin-left: auto;
  margin-right: auto;
  text-align: center;
  border-radius: 1rem;
  border: 1px solid var(--border-color);
  background: rgba(238, 245, 251, 0.5);
  padding: 1.75rem;
}
.roadmap-detail h3 {
  font-size: 1.25rem;
  font-weight: 700;
}
.roadmap-detail p {
  margin-top: 0.5rem;
  color: var(--muted);
}

/* ============ FAQ accordion ============ */
.accordion {
  max-width: 48rem;
  margin: 3rem auto 0;
}
.accordion-item {
  border-bottom: 1px solid var(--border-color);
}
.accordion-trigger {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 1.25rem 0;
  background: none;
  border: none;
  text-align: left;
  font-weight: 600;
  font-size: 1rem;
  color: var(--ink);
}
.accordion-trigger .chevron {
  flex-shrink: 0;
  transition: transform 0.25s ease;
  color: var(--muted);
}
.accordion-item.open .accordion-trigger .chevron {
  transform: rotate(180deg);
}
.accordion-panel {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.25s ease;
}
.accordion-panel-inner {
  padding-bottom: 1.25rem;
  color: var(--muted);
  line-height: 1.7;
  font-size: 0.95rem;
}

/* ============ CTA banner ============ */
.cta-section {
  padding: 4rem 0 5rem;
}
.cta-banner {
  position: relative;
  overflow: hidden;
  border-radius: 1.5rem;
  background: linear-gradient(135deg, var(--navy), var(--primary-700));
  padding: 3.5rem 2rem;
  text-align: center;
}
.cta-banner h2 {
  position: relative;
  font-size: 1.9rem;
  font-weight: 800;
  color: #fff;
  max-width: 38rem;
  margin: 0 auto;
}
.cta-banner p {
  position: relative;
  margin-top: 1rem;
  color: #cbd5e1;
  max-width: 32rem;
  margin-left: auto;
  margin-right: auto;
}
.cta-banner-actions {
  position: relative;
  margin-top: 2.25rem;
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  justify-content: center;
}
.cta-banner .btn-outline {
  background: transparent;
  border-color: rgba(255, 255, 255, 0.3);
  color: #fff;
}
.cta-banner .btn-outline:hover {
  background: rgba(255, 255, 255, 0.1);
}
@media (min-width: 768px) {
  .cta-banner {
    padding: 5rem 4rem;
  }
  .cta-banner h2 {
    font-size: 2.4rem;
  }
}

/* ============ Blog ============ */
.blog-filters {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  justify-content: center;
}
.filter-pill {
  padding: 0.5rem 1rem;
  border-radius: 999px;
  font-size: 0.85rem;
  font-weight: 600;
  border: 1px solid var(--border-color);
  background: #fff;
  color: var(--ink);
  transition: all 0.3s ease;
}
.filter-pill:hover {
  border-color: var(--primary);
}
.filter-pill.active {
  background: var(--primary);
  border-color: var(--primary);
  color: #fff;
}
.blog-grid {
  margin-top: 3rem;
  display: grid;
  gap: 1.75rem;
  grid-template-columns: 1fr;
}
@media (min-width: 640px) {
  .blog-grid {
    grid-template-columns: 1fr 1fr;
  }
}
@media (min-width: 1024px) {
  .blog-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}
.blog-card {
  overflow: hidden;
  height: 100%;
  display: flex;
  flex-direction: column;
}
.blog-thumb {
  height: 11rem;
  width: 100%;
  position: relative;
}
.blog-thumb svg {
  width: 100%;
  height: 100%;
}
.blog-card-body {
  padding: 1.5rem;
  flex: 1;
  display: flex;
  flex-direction: column;
}
.blog-card-body h3 {
  margin-top: 0.75rem;
  font-size: 1.1rem;
  font-weight: 700;
  line-height: 1.4;
}
.blog-card-body p {
  margin-top: 0.5rem;
  font-size: 0.875rem;
  color: var(--muted);
  line-height: 1.6;
  flex: 1;
}
.blog-meta-row {
  margin-top: 1.25rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 0.75rem;
  color: var(--muted);
}
.blog-meta-row span {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
}
.read-more {
  margin-top: 1rem;
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--primary);
}

.article-wrap {
  padding: 9rem 0 5rem;
  max-width: 48rem;
  margin: 0 auto;
}
.back-link {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--primary);
  margin-bottom: 2rem;
}
.article-head-row {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}
.article-title {
  margin-top: 1rem;
  font-size: 2rem;
  font-weight: 800;
  letter-spacing: -0.02em;
  line-height: 1.25;
}
.article-meta {
  margin-top: 1.25rem;
  display: flex;
  align-items: center;
  gap: 1.25rem;
  font-size: 0.9rem;
  color: var(--muted);
}
.article-meta span {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
}
.article-thumb {
  margin-top: 2.25rem;
  height: 18rem;
  border-radius: 1rem;
  overflow: hidden;
}
.article-thumb svg {
  width: 100%;
  height: 100%;
}
.article-body {
  margin-top: 2.5rem;
  color: var(--muted);
  line-height: 1.75;
}
.article-body .lead {
  font-size: 1.1rem;
  color: var(--ink);
}
.article-body h2 {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--ink);
  padding-top: 1.5rem;
  padding-bottom: 0.25rem;
}
.article-body p {
  margin: 0.75rem 0;
}
.article-cta {
  margin-top: 3rem;
  border-radius: 1rem;
  border: 1px solid var(--border-color);
  background: rgba(238, 245, 251, 0.5);
  padding: 1.75rem;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 1.25rem;
}
.article-cta h3 {
  font-weight: 700;
}
.article-cta p {
  margin-top: 0.25rem;
  font-size: 0.9rem;
  color: var(--muted);
}
@media (min-width: 768px) {
  .article-title {
    font-size: 2.5rem;
  }
}

/* ============ Timeline (enforcement) ============ */
.timeline-wrap {
  margin-top: 4rem;
  max-width: 56rem;
  margin-left: auto;
  margin-right: auto;
  position: relative;
}
.timeline-spine {
  position: absolute;
  left: 1.75rem;
  top: 0;
  bottom: 0;
  width: 2px;
  background: var(--border-color);
}
.timeline-items {
  display: flex;
  flex-direction: column;
  gap: 3rem;
}
.timeline-row {
  position: relative;
  display: flex;
  flex-direction: column;
}
.timeline-dot {
  position: relative;
  z-index: 1;
  display: flex;
  height: 3.5rem;
  width: 3.5rem;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  border: 4px solid #fff;
  background: #e2e8f0;
  color: #64748b;
  flex-shrink: 0;
}
.timeline-dot.active {
  background: var(--emerald);
  color: #fff;
}
.timeline-content {
  margin-left: 5rem;
  margin-top: -3.4rem;
}
.timeline-card {
  border-radius: 1rem;
  border: 1px solid var(--border-color);
  background: var(--surface);
  padding: 1.5rem;
  box-shadow: var(--shadow-card);
}
.timeline-tag-row {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  flex-wrap: wrap;
}
.timeline-phase {
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--emerald-600);
}
.timeline-date {
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--muted);
}
.timeline-active-pill {
  font-size: 0.7rem;
  font-weight: 600;
  padding: 0.15rem 0.55rem;
  border-radius: 999px;
  background: var(--emerald-50);
  color: var(--emerald-600);
}
.timeline-card h3 {
  margin-top: 0.5rem;
  font-size: 1.1rem;
  font-weight: 700;
}
.timeline-card p {
  margin-top: 0.35rem;
  font-size: 0.9rem;
  color: var(--muted);
  line-height: 1.6;
}
@media (min-width: 768px) {
  .timeline-spine {
    left: 50%;
    transform: translateX(-50%);
  }
  .timeline-row {
    flex-direction: row;
    align-items: center;
  }
  .timeline-row.reverse {
    flex-direction: row-reverse;
  }
  .timeline-dot {
    position: absolute;
    left: 50%;
    transform: translateX(-50%);
  }
  .timeline-content {
    margin: 0;
    width: 50%;
  }
  .timeline-row:not(.reverse) .timeline-content {
    margin-left: auto;
    padding-left: 3rem;
  }
  .timeline-row.reverse .timeline-content {
    margin-right: auto;
    padding-right: 3rem;
    text-align: right;
  }
  .timeline-row.reverse .timeline-tag-row {
    justify-content: flex-end;
  }
}

/* ============ Penalties & rights ============ */
.penalty-rights-grid {
  display: grid;
  gap: 2rem;
  grid-template-columns: 1fr;
}
@media (min-width: 1024px) {
  .penalty-rights-grid {
    grid-template-columns: 1fr 1fr;
  }
}
.panel {
  height: 100%;
  border-radius: 1rem;
  padding: 2rem;
}
.panel-danger {
  border: 1px solid #fecaca;
  background: #fef2f2;
}
.panel-danger .icon-tile {
  background: #fee2e2;
  color: #dc2626;
}
.panel-danger h3 {
  margin-top: 1.25rem;
  font-size: 1.5rem;
  font-weight: 800;
  color: #b91c1c;
}
.panel-danger p {
  margin-top: 0.75rem;
  font-size: 0.9rem;
  color: rgba(185, 28, 28, 0.8);
  line-height: 1.6;
}
.panel-light {
  border: 1px solid var(--border-color);
  background: #fff;
}
.panel-light .icon-tile {
  background: var(--emerald-50);
  color: var(--emerald);
}
.panel-light h3 {
  margin-top: 1.25rem;
  font-size: 1.5rem;
  font-weight: 800;
}
.panel-light ul {
  margin-top: 1rem;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}
.panel-light li {
  display: flex;
  align-items: flex-start;
  gap: 0.75rem;
  font-size: 0.9rem;
}
.panel-light li [data-lucide] {
  color: var(--emerald);
  flex-shrink: 0;
  margin-top: 0.15rem;
}

/* ============ Whitepapers ============ */
.whitepaper-card {
  padding: 1.75rem;
  display: flex;
  flex-direction: column;
  height: 100%;
}
.whitepaper-card h3 {
  margin-top: 1.25rem;
  font-size: 1rem;
  font-weight: 700;
  line-height: 1.4;
}
.whitepaper-card .meta {
  margin-top: 0.35rem;
  font-size: 0.75rem;
  color: var(--muted);
}
.whitepaper-card .btn {
  margin-top: 1.25rem;
  width: 100%;
}

/* ============ Forms ============ */
.form-group {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  margin-bottom: 1.25rem;
}
.form-row {
  display: grid;
  gap: 1.25rem;
  grid-template-columns: 1fr;
}
@media (min-width: 640px) {
  .form-row {
    grid-template-columns: 1fr 1fr;
  }
}
label {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--ink);
}
input,
textarea {
  width: 100%;
  padding: 0.7rem 0.9rem;
  border-radius: 0.6rem;
  border: 1px solid var(--border-color);
  font: inherit;
  font-size: 0.9rem;
  color: var(--ink);
  background: #fff;
  transition: border-color 0.2s ease;
}
input:focus,
textarea:focus {
  outline: none;
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(15, 76, 129, 0.12);
}
textarea {
  min-height: 9rem;
  resize: vertical;
}
.input-icon-wrap {
  position: relative;
}
.input-icon-wrap [data-lucide] {
  position: absolute;
  left: 0.9rem;
  top: 50%;
  transform: translateY(-50%);
  color: var(--muted);
}
.input-icon-wrap input {
  padding-left: 2.6rem;
}
.input-icon-wrap input.has-toggle {
  padding-right: 2.6rem;
}
.input-toggle {
  position: absolute;
  right: 0.9rem;
  top: 50%;
  transform: translateY(-50%);
  background: none;
  border: none;
  color: var(--muted);
  padding: 0;
}
.form-alert {
  display: flex;
  align-items: flex-start;
  gap: 0.6rem;
  border-radius: 0.6rem;
  border: 1px solid #fecaca;
  background: #fef2f2;
  padding: 0.8rem 1rem;
  font-size: 0.875rem;
  color: #b91c1c;
  margin-bottom: 1.25rem;
}
.form-alert [data-lucide] {
  flex-shrink: 0;
  margin-top: 0.15rem;
}
.form-success {
  text-align: center;
  padding: 3rem 0;
}
.form-success .icon-circle {
  display: inline-flex;
  height: 4rem;
  width: 4rem;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  background: var(--emerald-50);
  color: var(--emerald);
}
.form-success h3 {
  margin-top: 1.25rem;
  font-size: 1.25rem;
  font-weight: 700;
}
.form-success p {
  margin-top: 0.5rem;
  color: var(--muted);
}
.form-hint {
  font-size: 0.75rem;
  color: var(--muted);
  line-height: 1.6;
}

/* ============ Contact page ============ */
.contact-grid {
  display: grid;
  gap: 2.5rem;
  grid-template-columns: 1fr;
}
@media (min-width: 1024px) {
  .contact-grid {
    grid-template-columns: 3fr 2fr;
  }
}
.contact-info-card {
  padding: 1.75rem;
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
}
.contact-info-item {
  display: flex;
  align-items: flex-start;
  gap: 0.9rem;
}
.contact-info-item .icon-tile {
  width: 2.5rem;
  height: 2.5rem;
  flex-shrink: 0;
}
.contact-info-item h4 {
  font-weight: 600;
}
.contact-info-item p {
  margin-top: 0.15rem;
  font-size: 0.9rem;
  color: var(--muted);
}
.contact-map {
  margin-top: 1.5rem;
  border-radius: 1rem;
  overflow: hidden;
  border: 1px solid var(--border-color);
  height: 14rem;
}
.contact-map iframe {
  width: 100%;
  height: 100%;
  border: 0;
}

/* ============ Login page ============ */
.auth-screen {
  min-height: 100vh;
  display: grid;
  grid-template-columns: 1fr;
}
@media (min-width: 1024px) {
  .auth-screen {
    grid-template-columns: 1fr 1fr;
  }
}
.auth-visual {
  display: none;
  position: relative;
  background: var(--navy);
  align-items: center;
  justify-content: center;
  overflow: hidden;
}
.auth-visual::before,
.auth-visual::after {
  content: "";
  position: absolute;
  border-radius: 50%;
  filter: blur(60px);
}
.auth-visual::before {
  top: -8rem;
  left: -8rem;
  height: 24rem;
  width: 24rem;
  background: rgba(15, 76, 129, 0.2);
}
.auth-visual::after {
  bottom: -8rem;
  right: -5rem;
  height: 24rem;
  width: 24rem;
  background: rgba(0, 168, 107, 0.15);
}
@media (min-width: 1024px) {
  .auth-visual {
    display: flex;
  }
}
.auth-visual-inner {
  position: relative;
  z-index: 1;
  max-width: 28rem;
  padding: 0 3rem;
  text-align: center;
}
.auth-visual-inner .icon-circle {
  display: inline-flex;
  height: 4rem;
  width: 4rem;
  align-items: center;
  justify-content: center;
  border-radius: 1rem;
  background: rgba(255, 255, 255, 0.1);
  color: var(--emerald);
}
.auth-visual-inner h2 {
  margin-top: 1.75rem;
  font-size: 1.9rem;
  font-weight: 800;
  color: #fff;
}
.auth-visual-inner p {
  margin-top: 1rem;
  color: #cbd5e1;
  line-height: 1.7;
}
.auth-form-side {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 8rem 1.5rem 5rem;
}
.auth-form-inner {
  width: 100%;
  max-width: 26rem;
}
.auth-mobile-brand {
  display: flex;
  align-items: center;
  gap: 0.65rem;
  font-weight: 700;
  font-size: 1.1rem;
  color: var(--navy);
  margin-bottom: 2.5rem;
}
@media (min-width: 1024px) {
  .auth-mobile-brand {
    display: none;
  }
}
.auth-tabs {
  display: grid;
  grid-template-columns: 1fr 1fr;
  border-radius: 0.65rem;
  background: #f1f5f9;
  padding: 0.25rem;
  gap: 0.25rem;
}
.auth-tab-btn {
  padding: 0.6rem;
  border-radius: 0.5rem;
  border: none;
  background: none;
  font-weight: 600;
  font-size: 0.9rem;
  color: var(--muted);
}
.auth-tab-btn.active {
  background: #fff;
  color: var(--ink);
  box-shadow: var(--shadow-soft);
}
.auth-panel {
  display: none;
  margin-top: 1.75rem;
}
.auth-panel.active {
  display: block;
}
.auth-panel h1 {
  font-size: 1.5rem;
  font-weight: 800;
}
.auth-panel > p {
  margin-top: 0.35rem;
  font-size: 0.9rem;
  color: var(--muted);
}
.auth-panel form {
  margin-top: 1.75rem;
}
.forgot-link {
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--primary);
}
.field-row-between {
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.auth-terms {
  margin-top: 2rem;
  text-align: center;
  font-size: 0.75rem;
  color: var(--muted);
}

/* ============ 404 ============ */
.not-found {
  min-height: 70vh;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 1.5rem;
}
.not-found .icon-circle {
  display: inline-flex;
  height: 4rem;
  width: 4rem;
  align-items: center;
  justify-content: center;
  border-radius: 1rem;
  background: var(--primary-50);
  color: var(--primary);
}
.not-found h1 {
  margin-top: 1.5rem;
  font-size: 1.9rem;
  font-weight: 800;
}
.not-found p {
  margin-top: 0.75rem;
  color: var(--muted);
}
.not-found .btn {
  margin-top: 1.75rem;
}

/* ============ Footer ============ */
.site-footer {
  background: var(--navy);
  color: #fff;
  border-top: 1px solid rgba(255, 255, 255, 0.05);
}
.footer-grid {
  display: grid;
  gap: 2.5rem;
  grid-template-columns: 1fr;
  padding: 4rem 0;
}
@media (min-width: 768px) {
  .footer-grid {
    grid-template-columns: repeat(5, 1fr);
  }
  .footer-brand {
    grid-column: span 2;
  }
}
.brand-light {
  color: #fff;
}
.footer-tagline {
  margin-top: 1rem;
  font-size: 0.9rem;
  color: #cbd5e1;
  max-width: 24rem;
  line-height: 1.7;
}
.footer-social {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  margin-top: 1.5rem;
}
.social-btn {
  display: flex;
  height: 2.25rem;
  width: 2.25rem;
  align-items: center;
  justify-content: center;
  border-radius: 0.5rem;
  background: rgba(255, 255, 255, 0.05);
  transition: background 0.3s ease;
}
.social-btn:hover {
  background: rgba(255, 255, 255, 0.1);
}
.footer-col h4 {
  font-size: 0.9rem;
  font-weight: 600;
  margin-bottom: 1rem;
}
.footer-col ul {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}
.footer-col a {
  font-size: 0.9rem;
  color: #cbd5e1;
  transition: color 0.3s ease;
}
.footer-col a:hover {
  color: var(--emerald);
}
.footer-contact-row {
  display: grid;
  gap: 1.3rem;
  grid-template-columns: 1fr;
  padding: 2rem 0;
  margin-top: 1rem;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  font-size: 0.875rem;
  color: #cbd5e1;
}
@media (min-width: 768px) {
  .footer-contact-row {
    grid-template-columns: repeat(3, 1fr);
  }
}
.footer-contact-item {
  display: flex;
  align-items: flex-start;
  gap: 0.6rem;
}
.footer-contact-item [data-lucide] {
  color: var(--emerald);
  flex-shrink: 0;
  margin-top: 0.15rem;
}
.footer-bottom {
  display: flex;
  flex-direction: column;
  gap: 1rem;
  align-items: center;
  padding: 1.25rem 0 2rem;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  font-size: 0.75rem;
  color: #94a3b8;
}
@media (min-width: 640px) {
  .footer-bottom {
    flex-direction: row;
    justify-content: space-between;
  }
}
.footer-bottom-links {
  display: flex;
  gap: 1.5rem;
}
.footer-bottom-links a:hover {
  color: #fff;
}

/* ============ Floating actions ============ */
.floating-actions {
  position: fixed;
  bottom: 1.5rem;
  right: 1.5rem;
  z-index: 40;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.75rem;
}
.scroll-top-btn {
  display: none;
  height: 2.75rem;
  width: 2.75rem;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  background: var(--navy);
  color: #fff;
  border: none;
  box-shadow: var(--shadow-hover);
}
.scroll-top-btn.visible {
  display: flex;
}
.whatsapp-btn {
  display: flex;
  height: 3.5rem;
  width: 3.5rem;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  background: #25d366;
  box-shadow: var(--shadow-hover);
}
.whatsapp-btn:hover {
  background: #1ebe5b;
}

/* ============ Utility ============ */
.text-center {
  text-align: center;
}
.mt-2 {
  margin-top: 2rem;
}
.max-w-3xl {
  max-width: 48rem;
  margin-left: auto;
  margin-right: auto;
}
.reveal {
  opacity: 0;
  transform: translateY(24px);
  transition:
    opacity 0.6s ease,
    transform 0.6s ease;
}
.reveal.in-view {
  opacity: 1;
  transform: translateY(0);
}
@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    transition-duration: 0.01ms !important;
  }
}

.spin {
  animation: spin 1s linear infinite;
}
@keyframes spin {
  to {
    transform: rotate(360deg);
  }
}

@media print {
  .site-header,
  .site-footer,
  .floating-actions {
    display: none !important;
  }
}

::-webkit-scrollbar {
  width: 10px;
}
::-webkit-scrollbar-track {
  background: transparent;
}
::-webkit-scrollbar-thumb {
  background: #cbd5e1;
  border-radius: 999px;
}

/* ============ Toast notifications ============ */
#toast-container {
  position: fixed;
  bottom: 6rem;
  left: 50%;
  transform: translateX(-50%);
  z-index: 9999;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.6rem;
  pointer-events: none;
  min-width: 20rem;
  max-width: 90vw;
}
.toast {
  display: flex;
  align-items: flex-start;
  gap: 0.75rem;
  background: #1e293b;
  color: #fff;
  border-radius: 0.75rem;
  padding: 0.85rem 1.15rem;
  font-size: 0.9rem;
  width: 100%;
  pointer-events: all;
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.25);
  border-left: 4px solid transparent;
  opacity: 0;
  transform: translateY(16px) scale(0.97);
  transition:
    opacity 0.28s ease,
    transform 0.28s ease;
}
.toast-in {
  opacity: 1;
  transform: translateY(0) scale(1);
}
.toast-out {
  opacity: 0;
  transform: translateY(-8px) scale(0.97);
}
.toast-success {
  border-color: var(--emerald);
}
.toast-error {
  border-color: #ef4444;
}
.toast-warning {
  border-color: #f59e0b;
}
.toast-info {
  border-color: var(--primary);
}
.toast-icon {
  flex-shrink: 0;
  margin-top: 0.1rem;
}
.toast-success .toast-icon {
  color: var(--emerald);
}
.toast-error .toast-icon {
  color: #ef4444;
}
.toast-warning .toast-icon {
  color: #f59e0b;
}
.toast-info .toast-icon {
  color: #60a5fa;
}
.toast-msg {
  flex: 1;
  line-height: 1.5;
}
.toast-close {
  background: none;
  border: none;
  color: #94a3b8;
  font-size: 1.1rem;
  cursor: pointer;
  padding: 0 0 0 0.5rem;
  line-height: 1;
}
.toast-close:hover {
  color: #fff;
}

/* ============ Spinner ============ */
.spinner {
  display: inline-block;
  width: 1em;
  height: 1em;
  margin-right: 0.25rem;
  border: 2px solid rgba(255, 255, 255, 0.4);
  border-top-color: #fff;
  border-radius: 50%;
  animation: spin 0.7s linear infinite;
  vertical-align: -2px;
}
@keyframes spin {
  to {
    transform: rotate(360deg);
  }
}

/* ============ Field validation ============ */
.field-error {
  display: block;
  font-size: 0.78rem;
  color: #ef4444;
  margin-top: 0.3rem;
}
input.input-error,
textarea.input-error {
  border-color: #ef4444 !important;
  box-shadow: 0 0 0 3px rgba(239, 68, 68, 0.12) !important;
}

/* ============ Stats / count-up section ============ */
.stats-grid {
  display: grid;
  gap: 1.5rem;
  grid-template-columns: repeat(2, 1fr);
  margin-top: 3.5rem;
  padding: 2.5rem;
  border-radius: 1.25rem;
  background: linear-gradient(135deg, var(--navy) 0%, var(--primary-700) 100%);
}
@media (min-width: 768px) {
  .stats-grid {
    grid-template-columns: repeat(4, 1fr);
  }
}
.stat-item {
  text-align: center;
}
.stat-value {
  display: block;
  font-size: 2.4rem;
  font-weight: 800;
  color: #fff;
  letter-spacing: -0.03em;
  line-height: 1;
}
@media (min-width: 768px) {
  .stat-value {
    font-size: 2.8rem;
  }
}
.stat-label {
  display: block;
  margin-top: 0.5rem;
  font-size: 0.85rem;
  color: #94a3b8;
}

/* ============ Roadmap detail transition ============ */
.roadmap-detail {
  transition:
    opacity 0.2s ease,
    transform 0.2s ease;
}

/* ============ Mobile menu animation ============ */
.mobile-menu {
  animation: slideDown 0.25s ease;
}
@keyframes slideDown {
  from {
    opacity: 0;
    transform: translateY(-8px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* ============ Print styles for whitepaper page ============ */
@media print {
  .site-header,
  .site-footer,
  .floating-actions,
  #toast-container,
  .pdf-actions {
    display: none !important;
  }
}

/* Mobile menu: hidden attribute override (JS toggles .hidden attribute) */
#mobile-menu {
  display: none;
}
#mobile-menu:not([hidden]) {
  display: flex;
  flex-direction: column;
}