/* ===== Design tokens ===== */
:root {
  --color-primary: #0b3d59;
  --color-primary-dark: #082b3f;
  --color-accent: #1c7a5e;
  --color-accent-light: #2f9e60;
  --color-text: #1f2937;
  --color-text-muted: #5b6472;
  --color-bg: #ffffff;
  --color-bg-alt: #f4f7f9;
  --color-border: #e2e8f0;
  --font-heading: 'Poppins', Arial, sans-serif;
  --font-body: 'Inter', Arial, sans-serif;
  --radius: 12px;
  --shadow: 0 4px 20px rgba(11, 61, 89, 0.08);
  --shadow-hover: 0 10px 30px rgba(11, 61, 89, 0.14);
  --max-width: 1160px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: var(--font-body);
  color: var(--color-text);
  background: var(--color-bg);
  line-height: 1.65;
}
h1, h2, h3, h4 { font-family: var(--font-heading); color: var(--color-primary); margin: 0 0 0.5em; line-height: 1.25; }
p { margin: 0 0 1em; color: var(--color-text-muted); }
a { color: var(--color-accent); text-decoration: none; }
img { max-width: 100%; display: block; }

.container { max-width: var(--max-width); margin: 0 auto; padding: 0 24px; }
.container.narrow { max-width: 760px; }
.section { padding: 72px 0; }
.section-alt { background: var(--color-bg-alt); }
.section-heading { font-size: 2rem; text-align: center; margin-bottom: 1.2rem; }
.section-heading-left { font-size: 1.75rem; margin-bottom: 1rem; }
.section-text-centered { max-width: 720px; margin: 0 auto 0.5em; text-align: center; font-size: 1.05rem; }
.centered-cta { text-align: center; margin-top: 2rem; }
.cta-row { display: flex; gap: 16px; justify-content: center; flex-wrap: wrap; margin-top: 1.5rem; }

.two-col { display: grid; grid-template-columns: 1fr 1.3fr; gap: 56px; align-items: center; }
.two-col.reverse { grid-template-columns: 0.9fr 1.3fr; }
@media (max-width: 800px) {
  .two-col, .two-col.reverse { grid-template-columns: 1fr; }
}

/* ===== Buttons ===== */
.btn {
  display: inline-block;
  padding: 13px 28px;
  border-radius: 999px;
  font-weight: 600;
  font-size: 0.95rem;
  border: 2px solid transparent;
  cursor: pointer;
  transition: transform 0.15s ease, box-shadow 0.15s ease, background 0.15s ease;
}
.btn-primary { background: var(--color-accent); color: #fff; }
.btn-primary:hover { background: var(--color-accent-light); transform: translateY(-2px); box-shadow: var(--shadow-hover); }
.btn-outline { background: transparent; color: var(--color-primary); border-color: var(--color-primary); }
.btn-outline:hover { background: var(--color-primary); color: #fff; }
.btn-block { width: 100%; text-align: center; }

/* ===== Header / Nav ===== */
.site-header { position: sticky; top: 0; z-index: 100; background: #fff; box-shadow: 0 2px 10px rgba(0,0,0,0.06); }
.header-inner { display: flex; align-items: center; justify-content: space-between; padding: 14px 24px; }
.brand { display: flex; align-items: center; gap: 10px; }
.brand-logo { height: 40px; width: auto; }
.brand-name { font-family: var(--font-heading); font-weight: 700; font-size: 1.2rem; color: var(--color-primary); }

.main-nav { display: flex; align-items: center; gap: 8px; }
.main-nav > a, .nav-dropdown > a {
  padding: 10px 16px; font-weight: 500; color: var(--color-text); border-radius: 8px; position: relative;
}
.main-nav > a:hover, .nav-dropdown > a:hover, .main-nav > a.active, .nav-dropdown > a.active { color: var(--color-accent); background: var(--color-bg-alt); }
.nav-cta { background: var(--color-primary) !important; color: #fff !important; padding: 10px 22px !important; border-radius: 999px; }
.nav-cta:hover { background: var(--color-primary-dark) !important; }

.nav-dropdown { position: relative; }
.dropdown-menu {
  position: absolute; top: 100%; left: 0; background: #fff; box-shadow: var(--shadow);
  border-radius: 10px; padding: 8px; min-width: 200px; opacity: 0; visibility: hidden;
  transform: translateY(8px); transition: all 0.15s ease;
}
.nav-dropdown:hover .dropdown-menu { opacity: 1; visibility: visible; transform: translateY(0); }
.dropdown-menu a { display: block; padding: 10px 14px; border-radius: 6px; color: var(--color-text); }
.dropdown-menu a:hover { background: var(--color-bg-alt); color: var(--color-accent); }

.nav-toggle { display: none; flex-direction: column; gap: 5px; background: none; border: none; cursor: pointer; padding: 8px; }
.nav-toggle span { width: 26px; height: 2px; background: var(--color-primary); }

@media (max-width: 900px) {
  .nav-toggle { display: flex; }
  .main-nav {
    position: absolute; top: 100%; left: 0; right: 0; background: #fff; flex-direction: column;
    align-items: stretch; padding: 12px; box-shadow: var(--shadow); display: none;
  }
  .main-nav.open { display: flex; }
  .dropdown-menu { position: static; box-shadow: none; opacity: 1; visibility: visible; transform: none; display: none; padding-left: 16px; }
  .nav-dropdown.open .dropdown-menu { display: block; }
}

/* ===== Hero slider ===== */
.hero-slider { position: relative; height: 82vh; min-height: 480px; max-height: 760px; overflow: hidden; }
.hero-slide {
  position: absolute; inset: 0; background-size: cover; background-position: center;
  opacity: 0; transition: opacity 0.9s ease; display: flex; align-items: center;
}
.hero-slide.active { opacity: 1; }
.hero-overlay { position: absolute; inset: 0; background: linear-gradient(90deg, rgba(11,61,89,0.75) 0%, rgba(11,61,89,0.35) 60%, rgba(11,61,89,0.15) 100%); }
.hero-content { position: relative; color: #fff; max-width: 640px; }
.hero-content h1 { color: #fff; font-size: 2.6rem; margin-bottom: 0.5em; }
.hero-content p { color: rgba(255,255,255,0.9); font-size: 1.15rem; margin-bottom: 1.5em; }
.hero-dots { position: absolute; bottom: 28px; left: 50%; transform: translateX(-50%); display: flex; gap: 10px; z-index: 2; }
.hero-dot { width: 10px; height: 10px; border-radius: 50%; border: 2px solid #fff; background: transparent; cursor: pointer; padding: 0; }
.hero-dot.active { background: #fff; }

/* ===== Highlights ===== */
.highlight-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(180px, 1fr)); gap: 24px; }
.highlight-card { background: #fff; border-radius: var(--radius); padding: 28px 20px; text-align: center; box-shadow: var(--shadow); }
.highlight-value { font-family: var(--font-heading); font-size: 2rem; font-weight: 700; color: var(--color-accent); }
.highlight-label { color: var(--color-text-muted); margin-top: 6px; font-size: 0.95rem; }

/* ===== Page banner ===== */
.page-banner { background: linear-gradient(120deg, var(--color-primary), var(--color-accent)); padding: 56px 0; }
.page-banner h1 { color: #fff; margin: 0; }

/* ===== Team ===== */
.team-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); gap: 28px; }
.team-card { text-align: center; background: #fff; border-radius: var(--radius); box-shadow: var(--shadow); padding: 24px 16px; transition: transform 0.15s ease, box-shadow 0.15s ease; }
.team-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-hover); }
.team-card img { width: 120px; height: 120px; object-fit: cover; border-radius: 50%; margin: 0 auto 16px; }
.team-card h3 { font-size: 1.05rem; margin-bottom: 2px; }
.team-card p { margin: 0; color: var(--color-accent); font-weight: 500; }

/* ===== Photos / quotes ===== */
.rounded-photo { border-radius: var(--radius); box-shadow: var(--shadow); width: 100%; object-fit: cover; }
.quote-mark { font-size: 3rem; color: var(--color-border); font-family: Georgia, serif; margin: 0; height: 0; }
.chairman-signoff { color: var(--color-text); margin-top: 1.5em; }
.lead { font-size: 1.15rem; color: var(--color-text); font-weight: 500; }

/* ===== Accordion (FAQ) ===== */
.accordion-item { border: 1px solid var(--color-border); border-radius: 10px; margin-bottom: 12px; padding: 16px 20px; }
.accordion-item summary { font-weight: 600; cursor: pointer; color: var(--color-primary); }
.accordion-body { margin-top: 10px; }

/* ===== Tables / spec blocks ===== */
.spec-block { margin-bottom: 20px; padding: 16px 20px; background: var(--color-bg-alt); border-radius: 10px; }
.spec-block h4 { margin-bottom: 6px; font-size: 1rem; }
.spec-table { width: 100%; border-collapse: collapse; }
.spec-table tr { border-bottom: 1px solid var(--color-border); }
.spec-table th, .spec-table td { text-align: left; padding: 12px 8px; font-weight: 500; }
.spec-table th { color: var(--color-text); width: 45%; }
.spec-table td { color: var(--color-text-muted); }
.spec-table.centered { max-width: 600px; margin: 0 auto; }
.coordinates { text-align: center; color: var(--color-text); }

/* ===== Components grid ===== */
.component-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); gap: 24px; }
.component-card { background: #fff; border-radius: var(--radius); box-shadow: var(--shadow); overflow: hidden; transition: transform 0.15s ease, box-shadow 0.15s ease; }
.component-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-hover); }
.component-card img { height: 170px; width: 100%; object-fit: cover; }
.component-card h3, .component-card p, .component-card .link-arrow { padding: 0 20px; }
.component-card h3 { margin-top: 16px; }
.component-card .link-arrow { display: block; padding-bottom: 20px; font-weight: 600; color: var(--color-accent); }

/* ===== Reports ===== */
.filter-tabs { display: flex; gap: 10px; margin-bottom: 32px; flex-wrap: wrap; }
.filter-tabs a { padding: 8px 18px; border-radius: 999px; border: 2px solid var(--color-border); color: var(--color-text); font-weight: 500; text-transform: capitalize; }
.filter-tabs a.active, .filter-tabs a:hover { border-color: var(--color-accent); color: var(--color-accent); }
.report-list { display: flex; flex-direction: column; gap: 16px; }
.report-item { display: flex; justify-content: space-between; align-items: center; gap: 20px; background: var(--color-bg-alt); border-radius: var(--radius); padding: 20px 24px; flex-wrap: wrap; }
.report-item h3 { margin: 4px 0; font-size: 1.1rem; }
.report-category { text-transform: uppercase; font-size: 0.75rem; font-weight: 700; color: var(--color-accent); letter-spacing: 0.04em; }
.report-date { color: var(--color-text-muted); font-size: 0.9rem; }
.empty-state { text-align: center; color: var(--color-text-muted); padding: 40px 0; }

/* ===== News ===== */
.news-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(260px, 1fr)); gap: 26px; }
.news-card { background: #fff; border-radius: var(--radius); overflow: hidden; box-shadow: var(--shadow); transition: transform 0.15s ease, box-shadow 0.15s ease; }
.news-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-hover); }
.news-card img { height: 170px; width: 100%; object-fit: cover; }
.news-card-body { padding: 18px 20px; }
.news-card-body h3 { font-size: 1.05rem; margin: 6px 0; }
.news-date { color: var(--color-accent); font-size: 0.85rem; font-weight: 600; }
.news-detail-image { border-radius: var(--radius); margin: 16px 0; width: 100%; max-height: 420px; object-fit: cover; }
.news-preview-list { display: flex; flex-direction: column; gap: 16px; }
.news-preview-item { display: flex; gap: 14px; align-items: center; background: var(--color-bg-alt); border-radius: 10px; padding: 12px; }
.news-preview-item img { width: 64px; height: 64px; object-fit: cover; border-radius: 8px; flex-shrink: 0; }
.news-preview-item .news-title { color: var(--color-text); font-weight: 500; margin-top: 2px; }

/* ===== Contact ===== */
.contact-line { color: var(--color-text); margin-bottom: 10px; }
.map-embed { margin-top: 20px; border-radius: var(--radius); overflow: hidden; box-shadow: var(--shadow); }
.contact-form { display: flex; flex-direction: column; gap: 16px; }
.contact-form label { font-weight: 600; font-size: 0.9rem; color: var(--color-text); display: flex; flex-direction: column; gap: 6px; }
.contact-form input, .contact-form textarea {
  font-family: var(--font-body); padding: 12px 14px; border: 1px solid var(--color-border);
  border-radius: 8px; font-size: 1rem; font-weight: 400;
}
.contact-form input:focus, .contact-form textarea:focus { outline: none; border-color: var(--color-accent); }
.alert { padding: 14px 18px; border-radius: 8px; margin-bottom: 16px; font-weight: 500; }
.alert-success { background: #e6f7ee; color: #1c7a5e; }
.alert-error { background: #fdecea; color: #b3261e; }

/* ===== Footer ===== */
.site-footer { background: var(--color-primary-dark); color: rgba(255,255,255,0.85); margin-top: 40px; }
.footer-inner { display: grid; grid-template-columns: 1.4fr 1fr 1fr; gap: 40px; padding: 56px 24px; }
@media (max-width: 700px) { .footer-inner { grid-template-columns: 1fr; } }
.footer-logo { height: 36px; margin-bottom: 14px; filter: brightness(0) invert(1); }
.footer-col h4 { color: #fff; font-size: 1rem; margin-bottom: 14px; }
.footer-col p, .footer-col a { color: rgba(255,255,255,0.75); display: block; margin-bottom: 8px; }
.footer-col a:hover { color: #fff; }
.footer-bottom { border-top: 1px solid rgba(255,255,255,0.12); padding: 18px 0; text-align: center; font-size: 0.85rem; color: rgba(255,255,255,0.6); }