/* ==========================================================================
   Cardiac Society of Rwanda (CSR) -- Website Stylesheet
   Brand colors sampled from the official CSR logo.
   ========================================================================== */

:root {
  --csr-red: #C62B1A;
  --csr-red-dark: #A0230F;
  --csr-red-light: #FBEAE7;
  --csr-black: #1A1A1A;
  --csr-gray-900: #262626;
  --csr-gray-700: #4D4D4D;
  --csr-gray-400: #9A9A9A;
  --csr-gray-200: #E5E5E5;
  --csr-gray-100: #F5F5F3;
  --csr-white: #FFFFFF;
  --max-width: 1160px;
  --radius: 6px;
  --shadow: 0 2px 14px rgba(0, 0, 0, 0.08);
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  font-family: "Segoe UI", Arial, Helvetica, sans-serif;
  color: var(--csr-gray-900);
  background: var(--csr-white);
  line-height: 1.65;
}

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

a { color: var(--csr-red); text-decoration: none; }
a:hover { color: var(--csr-red-dark); text-decoration: underline; }

h1, h2, h3, h4 {
  font-family: Arial, Helvetica, sans-serif;
  font-weight: 800;
  color: var(--csr-black);
  line-height: 1.25;
  margin: 0 0 0.6em 0;
}

h1 { font-size: 2.4rem; }
h2 { font-size: 1.8rem; }
h3 { font-size: 1.3rem; }

p { margin: 0 0 1em 0; }

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

.section { padding: 64px 0; }
.section-alt { background: var(--csr-gray-100); }
.section-dark { background: var(--csr-black); color: var(--csr-gray-200); }
.section-dark h1, .section-dark h2, .section-dark h3 { color: var(--csr-white); }

.eyebrow {
  text-transform: uppercase;
  letter-spacing: 0.08em;
  font-size: 0.8rem;
  font-weight: 700;
  color: var(--csr-red);
  margin-bottom: 10px;
  display: block;
}

/* ---------- Buttons ---------- */
.btn {
  display: inline-block;
  padding: 13px 28px;
  border-radius: var(--radius);
  font-weight: 700;
  font-size: 0.95rem;
  border: 2px solid var(--csr-red);
  cursor: pointer;
  transition: background 0.15s ease, color 0.15s ease, border-color 0.15s ease;
}
.btn-primary { background: var(--csr-red); color: var(--csr-white); }
.btn-primary:hover { background: var(--csr-red-dark); border-color: var(--csr-red-dark); color: var(--csr-white); text-decoration: none; }
.btn-outline { background: transparent; color: var(--csr-red); }
.btn-outline:hover { background: var(--csr-red); color: var(--csr-white); text-decoration: none; }
.btn-white { background: var(--csr-white); color: var(--csr-red); border-color: var(--csr-white); }
.btn-white:hover { background: transparent; color: var(--csr-white); text-decoration: none; }

/* ---------- Header / Nav ---------- */
.site-header { position: sticky; top: 0; z-index: 100; background: var(--csr-white); border-bottom: 1px solid var(--csr-gray-200); }
.nav-wrap { max-width: var(--max-width); margin: 0 auto; padding: 10px 24px; display: flex; align-items: center; justify-content: space-between; position: relative; }
.brand { display: flex; align-items: center; gap: 10px; font-weight: 800; font-size: 1.1rem; color: var(--csr-black); }
.brand img { height: 46px; width: auto; }
.brand:hover { text-decoration: none; color: var(--csr-black); }

.nav-toggle { display: none; flex-direction: column; gap: 5px; background: none; border: none; cursor: pointer; padding: 6px; }
.nav-toggle span { width: 26px; height: 3px; background: var(--csr-black); border-radius: 2px; }

.main-nav ul { list-style: none; display: flex; gap: 6px; margin: 0; padding: 0; }
.main-nav a { color: var(--csr-gray-900); font-weight: 600; font-size: 0.95rem; padding: 10px 14px; border-radius: var(--radius); display: block; }
.main-nav a:hover, .main-nav a.active { color: var(--csr-red); background: var(--csr-red-light); text-decoration: none; }

/* ---------- Hero ---------- */
.hero { background: linear-gradient(180deg, var(--csr-gray-100) 0%, var(--csr-white) 100%); padding: 72px 0 64px; }
.hero-grid { display: grid; grid-template-columns: 1.1fr 0.9fr; gap: 48px; align-items: center; }
.hero h1 { margin-bottom: 18px; }
.hero p.lead { font-size: 1.15rem; color: var(--csr-gray-700); margin-bottom: 28px; }
.hero-actions { display: flex; gap: 14px; flex-wrap: wrap; }
.hero-photo img { border-radius: var(--radius); box-shadow: var(--shadow); width: 100%; height: 340px; object-fit: cover; }

/* ---------- Cards / Grids ---------- */
.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 28px; }
.grid-2 { display: grid; grid-template-columns: repeat(2, 1fr); gap: 32px; }
.card { background: var(--csr-white); border: 1px solid var(--csr-gray-200); border-radius: var(--radius); padding: 28px; height: 100%; }
.card .icon-mark { width: 44px; height: 44px; border-radius: 50%; background: var(--csr-red-light); color: var(--csr-red); display: flex; align-items: center; justify-content: center; font-weight: 800; margin-bottom: 16px; }

.values-row { display: flex; gap: 14px; flex-wrap: wrap; margin-top: 8px; }
.value-pill { background: var(--csr-red-light); color: var(--csr-red-dark); font-weight: 700; padding: 10px 20px; border-radius: 999px; font-size: 0.95rem; }

ul.check-list, ul.plain-list { padding-left: 0; list-style: none; margin: 0; }
ul.check-list li, ul.plain-list li { padding: 8px 0 8px 30px; position: relative; border-bottom: 1px solid var(--csr-gray-200); }
ul.check-list li:last-child, ul.plain-list li:last-child { border-bottom: none; }
ul.check-list li::before { content: "\2713"; position: absolute; left: 0; top: 8px; color: var(--csr-red); font-weight: 800; }
ul.plain-list li::before { content: "\2022"; position: absolute; left: 8px; top: 8px; color: var(--csr-red); font-weight: 800; }

/* ---------- Leadership ---------- */
.leader-card { display: flex; gap: 20px; align-items: flex-start; background: var(--csr-white); border: 1px solid var(--csr-gray-200); border-radius: var(--radius); padding: 26px; }
.leader-avatar { flex-shrink: 0; width: 68px; height: 68px; border-radius: 50%; background: var(--csr-red); color: var(--csr-white); display: flex; align-items: center; justify-content: center; font-weight: 800; font-size: 1.4rem; }
.leader-card h3 { margin-bottom: 2px; }
.leader-title { color: var(--csr-red); font-weight: 700; font-size: 0.92rem; margin-bottom: 10px; }

/* ---------- Photo gallery ---------- */
.gallery-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 20px; }
.gallery-item { border-radius: var(--radius); overflow: hidden; box-shadow: var(--shadow); }
.gallery-item img { width: 100%; height: 300px; object-fit: cover; transition: transform 0.3s ease; }
.gallery-item:hover img { transform: scale(1.04); }
.gallery-caption { background: var(--csr-white); padding: 12px 16px; font-size: 0.9rem; color: var(--csr-gray-700); border: 1px solid var(--csr-gray-200); border-top: none; }

/* ---------- News / events ---------- */
.news-item { display: grid; grid-template-columns: 260px 1fr; gap: 26px; padding: 30px 0; border-bottom: 1px solid var(--csr-gray-200); }
.news-item:last-child { border-bottom: none; }
.news-item img { border-radius: var(--radius); height: 170px; object-fit: cover; width: 100%; }
.news-date { display: inline-block; color: var(--csr-red); font-weight: 700; font-size: 0.85rem; margin-bottom: 8px; }

/* ---------- Tables ---------- */
table.member-table { width: 100%; border-collapse: collapse; margin: 20px 0; }
table.member-table th, table.member-table td { text-align: left; padding: 14px 16px; border: 1px solid var(--csr-gray-200); vertical-align: top; }
table.member-table th { background: var(--csr-gray-100); color: var(--csr-black); }

/* ---------- Contact ---------- */
.contact-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 44px; }
.contact-detail { display: flex; gap: 14px; margin-bottom: 22px; }
.contact-detail .icon-mark { width: 40px; height: 40px; border-radius: 50%; background: var(--csr-red-light); color: var(--csr-red); display: flex; align-items: center; justify-content: center; flex-shrink: 0; font-weight: 800; }
form.contact-form label { display: block; font-weight: 700; font-size: 0.9rem; margin-bottom: 6px; color: var(--csr-gray-900); }
form.contact-form input, form.contact-form select, form.contact-form textarea { width: 100%; padding: 12px 14px; border: 1px solid var(--csr-gray-200); border-radius: var(--radius); font-family: inherit; font-size: 0.95rem; margin-bottom: 18px; background: var(--csr-white); }
form.contact-form textarea { resize: vertical; min-height: 130px; }

/* ---------- CTA banner ---------- */
.cta-banner { background: var(--csr-red); color: var(--csr-white); border-radius: var(--radius); padding: 44px; text-align: center; }
.cta-banner h2 { color: var(--csr-white); }
.cta-banner p { color: rgba(255,255,255,0.9); }

/* ---------- Footer ---------- */
.site-footer { background: var(--csr-black); color: var(--csr-gray-400); padding: 48px 0 24px; }
.footer-grid { display: grid; grid-template-columns: 1.4fr 1fr 1fr; gap: 40px; margin-bottom: 32px; }
.footer-brand { display: flex; align-items: center; gap: 10px; margin-bottom: 14px; }
.footer-brand img { height: 40px; }
.footer-brand span { color: var(--csr-white); font-weight: 800; font-size: 1.05rem; }
.site-footer h4 { color: var(--csr-white); font-size: 1rem; margin-bottom: 14px; }
.site-footer a { color: var(--csr-gray-400); }
.site-footer a:hover { color: var(--csr-white); }
.footer-links { list-style: none; padding: 0; margin: 0; }
.footer-links li { margin-bottom: 10px; }
.footer-bottom { border-top: 1px solid #333; padding-top: 20px; font-size: 0.85rem; display: flex; justify-content: space-between; flex-wrap: wrap; gap: 10px; }

/* ---------- Page header (inner pages) ---------- */
.page-header { background: var(--csr-black); color: var(--csr-white); padding: 56px 0; text-align: center; }
.page-header h1 { color: var(--csr-white); margin-bottom: 10px; }
.page-header p { color: var(--csr-gray-400); max-width: 640px; margin: 0 auto; }

/* ---------- Responsive ---------- */
@media (max-width: 900px) {
  .hero-grid { grid-template-columns: 1fr; }
  .hero-photo { order: -1; }
  .grid-3 { grid-template-columns: 1fr; }
  .grid-2 { grid-template-columns: 1fr; }
  .contact-grid { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; gap: 28px; }
  .gallery-grid { grid-template-columns: 1fr; }
  .news-item { grid-template-columns: 1fr; }
  .news-item img { height: 200px; }
}

@media (max-width: 760px) {
  .nav-toggle { display: flex; }
  .main-nav { position: absolute; top: 100%; left: 0; right: 0; background: var(--csr-white); border-bottom: 1px solid var(--csr-gray-200); display: none; }
  .main-nav.open { display: block; }
  .main-nav ul { flex-direction: column; padding: 10px 24px 20px; gap: 2px; }
  .main-nav a { padding: 12px 8px; }
  h1 { font-size: 1.9rem; }
  .leader-card { flex-direction: column; }
}