/*
 Theme Name: ESG Cooperation Hub Theme
 Theme URI: https://esghub.hk
 Author: ESG Cooperation Hub
 Description: ESG Cooperation Hub theme developed with WordPress Codex.
 Version: 1.0
 Text Domain: mycorp-theme
*/

@import url('https://fonts.googleapis.com/css2?family=Manrope:wght@400;600;700&family=Noto+Sans+SC:wght@400;600&display=swap');

:root {
  --bg: #f6f8f6;
  --card: #ffffff;
  --primary: #0f7a5a;
  --primary-dark: #0a4f3c;
  --accent: #67c5b0;
  --text: #0e1f18;
  --muted: #5b6d63;
  --border: #d8e2dc;
  --shadow: 0 16px 40px rgba(9, 36, 23, 0.08);
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: 'Manrope', 'Noto Sans SC', system-ui, -apple-system, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
}

a {
  color: var(--primary-dark);
  text-decoration: none;
}

a:hover { color: var(--primary); }

.container { width: min(1120px, 92%); margin: 0 auto; }

.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  background: rgba(246, 248, 246, 0.92);
  backdrop-filter: blur(6px);
  border-bottom: 1px solid #e5ede7;
}

.header__inner { display: flex; align-items: center; gap: 24px; padding: 14px 0; }

.brand { display: flex; align-items: center; gap: 14px; }

.brand__mark {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  border-radius: 12px;
  background: linear-gradient(145deg, #0f7a5a, #0d9f8c);
  color: #fff;
  font-weight: 700;
  letter-spacing: 0.08em;
}

.brand__title { font-size: 18px; font-weight: 700; color: var(--text); display: block; }

.brand__tagline { margin: 2px 0 0; color: var(--muted); font-size: 13px; }

.nav { margin-left: auto; max-width: 100%; }

.brand__mark-img {
  width: 44px;
  height: 44px;
  border-radius: 10px;
  object-fit: contain;
}

.site-header nav {
  display: flex;
  align-items: center;
}

.site-header .nav__list,
.site-header nav ul.nav__list {
  list-style: none;
  display: flex !important;
  flex-direction: row !important;
  align-items: center;
  gap: 12px;
  margin: 0;
  padding: 0;
  flex-wrap: nowrap;
  white-space: nowrap;
  overflow: visible;
}

.site-header .nav__list > li,
.site-header nav ul.nav__list > li {
  display: inline-flex !important;
  align-items: center;
  position: relative;
}

.site-header .nav__list > li > a,
.site-header nav ul.nav__list > li > a {
  display: inline-flex;
}

.nav ul,
.nav__list {
  list-style: none;
  display: flex;
  align-items: center;
  gap: 12px;
  margin: 0;
  padding: 0;
  flex-wrap: nowrap;
  white-space: nowrap;
  overflow: visible;
}

.nav__list > li,
.nav ul > li {
  display: flex;
  align-items: center;
}

.nav__list li a {
  padding: 10px 12px;
  border-radius: 10px;
  font-weight: 600;
  color: var(--text);
}

.nav__list li a:hover {
  background: rgba(15, 122, 90, 0.12);
  color: var(--primary-dark);
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 12px 18px;
  border-radius: 14px;
  background: linear-gradient(135deg, #0f7a5a, #0a4f3c);
  color: #fff;
  font-weight: 700;
  border: none;
  transition: transform 0.15s ease, box-shadow 0.2s ease;
  box-shadow: var(--shadow);
}

.btn:hover { transform: translateY(-1px); }

.btn--ghost {
  background: transparent;
  color: var(--primary-dark);
  border: 1px solid #cce3d9;
  box-shadow: none;
}

.btn--small { padding: 10px 14px; font-size: 14px; }

.hero {
  background: radial-gradient(120% 140% at 0% 30%, rgba(15, 122, 90, 0.08), transparent),
              linear-gradient(120deg, #0b3125 0%, #0f7a5a 70%, #0d9f8c 100%);
  color: #e8f5f1;
  padding: 72px 0 60px;
}

.hero__inner { display: grid; grid-template-columns: 3fr 2fr; gap: 32px; align-items: center; }

.hero__text h1 { margin: 10px 0 12px; font-size: 38px; line-height: 1.2; }

.lede { margin: 0 0 18px; color: #d5e8e0; max-width: 620px; }

.hero__actions { display: flex; gap: 12px; margin-bottom: 18px; }

.hero__actions .btn--ghost { color: #e8f5f1; border-color: rgba(232, 245, 241, 0.4); }

.hero__stats { display: flex; gap: 16px; margin-top: 12px; flex-wrap: wrap; }

.stat { padding: 12px 14px; border-radius: 12px; background: rgba(255, 255, 255, 0.08); min-width: 120px; }

.stat span { display: block; font-weight: 700; font-size: 18px; }

.stat small { color: #cfe4da; }

.hero__card {
  background: #0c1f18;
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 18px;
  padding: 22px 20px;
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.2);
}

.hero__card h3 { margin-top: 0; color: #e8f5f1; }

.hero__list { margin: 12px 0 18px; padding: 0; list-style: none; display: grid; gap: 8px; }

.hero__list li {
  padding: 10px 12px;
  border-radius: 12px;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(255, 255, 255, 0.06);
}

.section { padding: 56px 0; }

.section__header { max-width: 760px; }

.section__header h2 { margin: 8px 0 10px; font-size: 28px; }

.section__lede { color: var(--muted); margin: 0; }

.eyebrow {
  text-transform: uppercase;
  letter-spacing: 0.08em;
  font-size: 12px;
  color: var(--muted);
  margin: 0;
}

.card-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); gap: 16px; margin-top: 24px; }

.card { background: var(--card); border: 1px solid var(--border); border-radius: 18px; padding: 18px; box-shadow: var(--shadow); }

.card h3 { margin-top: 4px; }

.card p { color: var(--muted); }

.tag-list { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 12px; }

.tag-list span {
  background: #edf4ef;
  color: var(--primary-dark);
  padding: 6px 10px;
  border-radius: 12px;
  font-size: 13px;
  font-weight: 600;
}

.two-up { display: grid; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); gap: 18px; }

.panel { background: var(--card); border: 1px solid var(--border); border-radius: 18px; padding: 18px; box-shadow: var(--shadow); }

.panel__header { display: flex; justify-content: space-between; align-items: center; gap: 10px; margin-bottom: 12px; }

.link { font-weight: 700; color: var(--primary-dark); }

.link:hover { color: var(--primary); }

.list { list-style: none; margin: 0; padding: 0; display: grid; gap: 10px; }

.list li { background: #f5f9f6; border: 1px solid var(--border); border-radius: 12px; }

.list a { display: flex; justify-content: space-between; align-items: center; padding: 12px; color: var(--text); }

.list__title { font-weight: 700; }

.list__meta { color: var(--muted); font-size: 13px; }

.card-stack { display: grid; gap: 12px; }

.stack-card { border: 1px solid var(--border); border-radius: 12px; padding: 14px; background: #f7fbf8; }

.news-intro {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 18px;
  margin: 0 0 18px;
  box-shadow: var(--shadow);
}

.about-page {
  padding: 32px 0;
  display: grid;
  gap: 12px;
}

.about-page .section__header {
  background: linear-gradient(135deg, rgba(15, 122, 90, 0.08), rgba(10, 79, 60, 0.06));
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 18px;
  box-shadow: var(--shadow);
}

.page-wrapper {
  padding: 32px 0;
}

.page-card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 16px;
  box-shadow: var(--shadow);
  margin-bottom: 16px;
}

.about-page .page-card h2,
.about-page .page-card h3 {
  color: var(--primary-dark);
  margin-top: 0;
}

.about-page .page-card ul {
  padding-left: 18px;
}

.stack-card h4 { margin: 4px 0 6px; }

.stack-card p { margin: 0 0 8px; color: var(--muted); }

.card-grid--4 { grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); }

.card--pillar { position: relative; padding-top: 14px; }

.badge {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 72px;
  padding: 6px 10px;
  border-radius: 12px;
  background: #edf4ef;
  color: var(--primary-dark);
  font-weight: 700;
}

.badge--solid {
  background: linear-gradient(135deg, #0f7a5a, #0a4f3c);
  color: #eaf5ef;
  box-shadow: var(--shadow);
}

.cases__grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(260px, 1fr)); gap: 14px; }

.case-card h4 { margin: 4px 0 8px; }

.case-card p { margin: 0 0 12px; color: var(--muted); }

.timeline { list-style: none; margin: 14px 0 0; padding: 0; display: grid; gap: 10px; }

.timeline li { display: grid; grid-template-columns: 110px 1fr; gap: 12px; align-items: start; background: #f6f9f7; border: 1px solid var(--border); border-radius: 14px; padding: 12px; }

.timeline__body h4 { margin: 2px 0 4px; }

.timeline__body p { margin: 0; color: var(--muted); }

.cta { padding: 48px 0 72px; }

.cta__body {
  background: linear-gradient(135deg, #0f7a5a, #0a4f3c);
  color: #eaf5ef;
  border-radius: 20px;
  padding: 26px 28px;
  display: flex;
  justify-content: space-between;
  gap: 18px;
  align-items: center;
  box-shadow: var(--shadow);
}

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

.cta .btn--ghost { color: #eaf5ef; border-color: rgba(234, 245, 239, 0.5); }

.site-footer { padding: 28px 0 40px; border-top: 1px solid #e5ede7; background: #fff; }

.footer__inner { display: flex; justify-content: space-between; align-items: center; gap: 16px; }

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

.footer__links a { color: var(--muted); }

.footer__links a:hover { color: var(--primary-dark); }

.muted { color: var(--muted); }

@media (max-width: 900px) {
  .hero__inner { grid-template-columns: 1fr; }
  .header__inner { flex-wrap: wrap; }
  .nav ul,
  .nav__list { flex-wrap: wrap; white-space: normal; overflow: visible; }
  .site-header { position: sticky; }
}

/* Dropdown styling */
.site-header nav ul.sub-menu {
  display: none;
  position: absolute;
  top: 100%;
  left: 0;
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 12px;
  box-shadow: var(--shadow);
  padding: 8px 10px;
  flex-direction: column;
  gap: 6px;
  white-space: nowrap;
  min-width: 200px;
  z-index: 20;
}

.site-header nav ul.sub-menu li {
  display: block;
}

.site-header nav ul.sub-menu li a {
  display: block;
  padding: 8px 10px;
}

.site-header nav li:hover > ul.sub-menu {
  display: flex;
}