/* ============================================
   Base Reset & Variables
   ============================================ */
:root {
  --color-primary: #0a6e8a;
  --color-primary-dark: #064a5e;
  --color-accent: #ff7a45;
  --color-accent-dark: #e5612a;
  --color-bg: #f7fafc;
  --color-surface: #ffffff;
  --color-text: #1a202c;
  --color-muted: #4a5568;
  --color-border: #e2e8f0;
  --radius: 10px;
  --radius-lg: 16px;
  --shadow-sm: 0 2px 6px rgba(0, 0, 0, 0.05);
  --shadow-md: 0 6px 20px rgba(0, 0, 0, 0.08);
  --shadow-lg: 0 12px 32px rgba(0, 0, 0, 0.1);
  --transition: 0.25s ease;
  --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
  --max-width: 1120px;
}

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

html { scroll-behavior: smooth; scroll-padding-top: 80px; }

body {
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.7;
  color: var(--color-text);
  background: var(--color-bg);
  -webkit-font-smoothing: antialiased;
}

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

a {
  color: var(--color-primary);
  text-decoration: none;
  transition: color var(--transition);
}
a:hover, a:focus { color: var(--color-accent); }

.container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 1.25rem;
}

.eyebrow {
  display: inline-block;
  font-size: 0.8rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--color-primary);
  font-weight: 600;
  margin-bottom: 0.75rem;
}

/* ============================================
   Header / Nav
   ============================================ */
.site-header {
  position: sticky;
  top: 0;
  background: rgba(255, 255, 255, 0.96);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--color-border);
  z-index: 1000;
}

.nav-wrap {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.85rem 1.25rem;
  gap: 1rem;
}

.brand {
  display: flex;
  align-items: center;
  gap: 0.7rem;
  color: var(--color-text);
  font-weight: 700;
  font-size: 1rem;
}
.brand:hover { color: var(--color-text); }
.brand-mark {
  width: 38px; height: 38px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--color-primary), var(--color-accent));
  color: #fff;
  display: grid;
  place-items: center;
  font-weight: 800;
  font-size: 0.9rem;
}
.brand-name small {
  display: block;
  font-size: 0.72rem;
  color: var(--color-muted);
  font-weight: 500;
}

.main-nav {
  display: flex;
  gap: 1.6rem;
}
.main-nav a {
  color: var(--color-text);
  font-weight: 500;
  font-size: 0.95rem;
  padding: 0.35rem 0;
  position: relative;
}
.main-nav a::after {
  content: '';
  position: absolute;
  left: 0; bottom: 0;
  width: 0; height: 2px;
  background: var(--color-accent);
  transition: width var(--transition);
}
.main-nav a:hover::after { width: 100%; }

.cta-btn {
  display: inline-block;
  padding: 0.75rem 1.4rem;
  border-radius: var(--radius);
  font-weight: 600;
  font-size: 0.95rem;
  cursor: pointer;
  border: none;
  transition: all var(--transition);
  text-align: center;
}
.cta-btn--primary {
  background: var(--color-accent);
  color: #fff;
  box-shadow: 0 4px 12px rgba(255, 122, 69, 0.3);
}
.cta-btn--primary:hover {
  background: var(--color-accent-dark);
  transform: translateY(-2px);
  color: #fff;
  box-shadow: 0 6px 16px rgba(255, 122, 69, 0.4);
}
.cta-btn--ghost {
  background: transparent;
  color: var(--color-primary);
  border: 2px solid var(--color-primary);
}
.cta-btn--ghost:hover {
  background: var(--color-primary);
  color: #fff;
}
.cta-btn--header {
  background: var(--color-primary);
  color: #fff;
  padding: 0.55rem 1.1rem;
  font-size: 0.9rem;
}
.cta-btn--header:hover { background: var(--color-primary-dark); color: #fff; }

.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 0.5rem;
}
.nav-toggle span {
  width: 24px; height: 2px;
  background: var(--color-text);
  transition: transform var(--transition);
}

/* ============================================
   Hero
   ============================================ */
.hero {
  background:
    radial-gradient(circle at 20% 30%, rgba(255, 122, 69, 0.12) 0%, transparent 50%),
    radial-gradient(circle at 80% 70%, rgba(10, 110, 138, 0.15) 0%, transparent 50%),
    linear-gradient(135deg, #f0f9fc 0%, #ffffff 100%);
  padding: 5rem 0 4rem;
  border-bottom: 1px solid var(--color-border);
}

.hero-inner { text-align: center; max-width: 820px; margin: 0 auto; }

.hero-title {
  font-size: clamp(2rem, 5vw, 3.25rem);
  line-height: 1.15;
  color: var(--color-text);
  font-weight: 800;
  letter-spacing: -0.02em;
  margin: 0.5rem 0 1.25rem;
}

.hero-sub {
  font-size: 1.15rem;
  color: var(--color-muted);
  margin-bottom: 2rem;
}

.hero-ctas {
  display: flex;
  gap: 0.9rem;
  justify-content: center;
  flex-wrap: wrap;
  margin-bottom: 2.5rem;
}

.hero-badges {
  list-style: none;
  display: flex;
  gap: 1.5rem;
  justify-content: center;
  flex-wrap: wrap;
  color: var(--color-muted);
  font-size: 0.95rem;
}
.hero-badges li a {
  color: var(--color-primary);
  font-weight: 500;
}

/* ============================================
   Article
   ============================================ */
.article {
  max-width: 780px;
  padding: 4rem 1.25rem 3rem;
}

.article h2 {
  font-size: clamp(1.5rem, 3vw, 1.95rem);
  color: var(--color-text);
  margin: 2.5rem 0 1rem;
  font-weight: 700;
  letter-spacing: -0.01em;
  border-left: 4px solid var(--color-accent);
  padding-left: 1rem;
}

.article h3 {
  font-size: 1.3rem;
  margin: 2rem 0 0.75rem;
  color: var(--color-primary-dark);
}

.article p {
  margin-bottom: 1.15rem;
  color: var(--color-text);
}

.article ul {
  margin: 1rem 0 1.5rem 1.5rem;
}
.article ul li {
  margin-bottom: 0.4rem;
  color: var(--color-text);
}
.article ul li::marker { color: var(--color-accent); }

.article strong { color: var(--color-primary-dark); }

.article a {
  color: var(--color-primary);
  font-weight: 600;
  border-bottom: 1px dashed var(--color-primary);
  padding-bottom: 1px;
}
.article a:hover {
  color: var(--color-accent);
  border-bottom-color: var(--color-accent);
}

.article-cta {
  margin-top: 3rem;
  padding: 2rem;
  background: linear-gradient(135deg, #e8f4f9 0%, #f7fafc 100%);
  border-radius: var(--radius-lg);
  text-align: center;
  border: 1px solid var(--color-border);
}
.article-cta h3 {
  color: var(--color-primary-dark);
  margin-bottom: 0.5rem;
}
.article-cta p {
  color: var(--color-muted);
  margin-bottom: 1.25rem;
}

/* ============================================
   Contact
   ============================================ */
.contact {
  padding: 4rem 0;
  background: linear-gradient(180deg, #ffffff 0%, #f0f9fc 100%);
  border-top: 1px solid var(--color-border);
}

.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 3rem;
  align-items: start;
}

.contact-info h2 {
  font-size: clamp(1.6rem, 3vw, 2.1rem);
  margin-bottom: 1rem;
  color: var(--color-text);
  line-height: 1.25;
}

.contact-info > p {
  color: var(--color-muted);
  margin-bottom: 2rem;
}

.contact-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 1rem;
  margin-bottom: 2rem;
}
.contact-list li {
  display: flex;
  gap: 1rem;
  align-items: flex-start;
  padding: 1rem;
  background: var(--color-surface);
  border-radius: var(--radius);
  border: 1px solid var(--color-border);
  box-shadow: var(--shadow-sm);
  transition: all var(--transition);
}
.contact-list li:hover {
  border-color: var(--color-primary);
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}
.contact-icon {
  font-size: 1.4rem;
  min-width: 2rem;
  text-align: center;
}
.contact-list strong {
  color: var(--color-primary-dark);
  font-size: 0.8rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}
.contact-list a {
  font-size: 1.05rem;
  font-weight: 600;
  color: var(--color-text);
}
.contact-list a:hover { color: var(--color-accent); }

.contact-form {
  background: var(--color-surface);
  padding: 2rem;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-md);
  border: 1px solid var(--color-border);
}
.contact-form h3 {
  margin-bottom: 1.5rem;
  color: var(--color-primary-dark);
  font-size: 1.3rem;
}
.form-row { margin-bottom: 1rem; }
.form-row label {
  display: block;
  font-size: 0.88rem;
  font-weight: 600;
  margin-bottom: 0.35rem;
  color: var(--color-text);
}
.form-row input,
.form-row textarea {
  width: 100%;
  padding: 0.75rem 0.9rem;
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  font-family: inherit;
  font-size: 0.98rem;
  transition: border-color var(--transition), box-shadow var(--transition);
  background: #fff;
}
.form-row input:focus,
.form-row textarea:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(10, 110, 138, 0.15);
}
.contact-form .cta-btn { width: 100%; margin-top: 0.5rem; }

.form-status {
  margin-top: 0.75rem;
  font-size: 0.9rem;
  min-height: 1.2em;
}
.form-status.success { color: #16a34a; }
.form-status.error { color: #dc2626; }

/* ============================================
   FAQ
   ============================================ */
.faq {
  padding: 4rem 0;
  background: var(--color-bg);
}
.section-title {
  font-size: clamp(1.6rem, 3vw, 2.1rem);
  text-align: center;
  margin-bottom: 2.5rem;
  color: var(--color-text);
}

.faq-list {
  max-width: 780px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}
.faq-item {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 1rem 1.25rem;
  transition: box-shadow var(--transition);
}
.faq-item[open] {
  box-shadow: var(--shadow-sm);
  border-color: var(--color-primary);
}
.faq-item summary {
  cursor: pointer;
  font-weight: 600;
  color: var(--color-primary-dark);
  list-style: none;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 1rem;
  padding: 0.25rem 0;
}
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary::after {
  content: '+';
  font-size: 1.4rem;
  font-weight: 300;
  color: var(--color-accent);
  transition: transform var(--transition);
}
.faq-item[open] summary::after {
  content: '–';
  transform: rotate(180deg);
}
.faq-item p {
  margin-top: 0.75rem;
  color: var(--color-muted);
}

/* ============================================
   Footer
   ============================================ */
.site-footer {
  background: #0f2d3a;
  color: #d1dce1;
  padding: 3rem 0 1rem;
}
.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr;
  gap: 2.5rem;
  margin-bottom: 2rem;
}
.site-footer h4 {
  color: #fff;
  margin-bottom: 1rem;
  font-size: 1.05rem;
}
.site-footer p, .site-footer li {
  font-size: 0.93rem;
  color: #a8bcc4;
  line-height: 1.6;
}
.site-footer ul {
  list-style: none;
}
.site-footer ul li { margin-bottom: 0.5rem; }
.site-footer a { color: #d1dce1; }
.site-footer a:hover { color: var(--color-accent); }

.footer-bottom {
  text-align: center;
  padding-top: 1.5rem;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  font-size: 0.85rem;
  color: #8aa1aa;
}

/* ============================================
   Scroll-to-top
   ============================================ */
.scroll-top {
  position: fixed;
  bottom: 24px;
  right: 24px;
  width: 48px; height: 48px;
  background: var(--color-primary);
  color: #fff;
  border-radius: 50%;
  display: grid;
  place-items: center;
  text-decoration: none;
  font-size: 1.3rem;
  box-shadow: var(--shadow-md);
  opacity: 0;
  pointer-events: none;
  transform: translateY(10px);
  transition: all var(--transition);
  z-index: 500;
}
.scroll-top.visible {
  opacity: 1;
  pointer-events: auto;
  transform: translateY(0);
}
.scroll-top:hover {
  background: var(--color-accent);
  color: #fff;
  transform: translateY(-4px);
}

/* ============================================
   Animations
   ============================================ */
.fade-in {
  opacity: 0;
  transform: translateY(16px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}
.fade-in.visible {
  opacity: 1;
  transform: translateY(0);
}

/* ============================================
   Responsive
   ============================================ */
@media (max-width: 900px) {
  .contact-grid { grid-template-columns: 1fr; gap: 2rem; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 720px) {
  .nav-toggle { display: flex; }
  .main-nav, .cta-btn--header { display: none; }
  .main-nav.open {
    display: flex;
    flex-direction: column;
    position: absolute;
    top: 100%;
    left: 0; right: 0;
    background: #fff;
    padding: 1rem 1.25rem;
    box-shadow: var(--shadow-md);
    border-top: 1px solid var(--color-border);
    gap: 0.5rem;
  }
  .main-nav.open a {
    padding: 0.75rem 0;
    border-bottom: 1px solid var(--color-border);
  }
  .main-nav.open a:last-child { border-bottom: none; }

  .hero { padding: 3rem 0; }
  .hero-ctas { flex-direction: column; align-items: stretch; max-width: 320px; margin-left: auto; margin-right: auto; }
  .hero-badges { flex-direction: column; gap: 0.5rem; }
  .footer-grid { grid-template-columns: 1fr; gap: 2rem; }
  .contact-form { padding: 1.5rem; }
}

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