/* === DESIGN SYSTEM === */
:root {
  --dark-bg: #0a0f1c;
  --dark-card: #131b2e;
  --dark-border: #1e2a42;
  --light-bg: #f5f7f6;
  --light-card: #ffffff;
  --light-border: #e2e8e4;
  --green: #4a7c59;
  --green-light: #6b9e7a;
  --green-pale: #e8f0eb;
  --blue: #3b5bdb;
  --blue-light: #4c6ef5;
  --gold: #d4a843;
  --gold-light: #e8c36a;
  --text-dark: #e8ecf1;
  --text-light: #1a2332;
  --text-muted-dark: #8a95a8;
  --text-muted-light: #5a6672;
  --font-body: 'Inter', -apple-system, sans-serif;
  --font-heading: 'Playfair Display', Georgia, serif;
  --max-width: 1140px;
  --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

/* === RESET === */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; font-size: 16px; }
body { font-family: var(--font-body); line-height: 1.6; color: var(--text-light); overflow-x: hidden; }
a { text-decoration: none; color: inherit; }
img { max-width: 100%; display: block; }
ul { list-style: none; }
table { border-collapse: collapse; width: 100%; }

/* === LAYOUT === */
.container { max-width: var(--max-width); margin: 0 auto; padding: 0 24px; }
.section { padding: 100px 0; position: relative; }
.section.dark { background: var(--dark-bg); color: var(--text-dark); }
.section.light { background: var(--light-bg); color: var(--text-light); }

/* === NAVBAR === */
.navbar { position: fixed; top: 0; left: 0; right: 0; z-index: 1000; padding: 16px 0; transition: var(--transition); background: transparent; }
.navbar.scrolled { background: rgba(10,15,28,0.95); backdrop-filter: blur(12px); box-shadow: 0 2px 20px rgba(0,0,0,0.3); padding: 10px 0; }
.nav-container { max-width: var(--max-width); margin: 0 auto; padding: 0 24px; display: flex; align-items: center; justify-content: space-between; }
.nav-logo { font-family: var(--font-heading); font-size: 1.5rem; font-weight: 700; color: #fff; }
.nav-logo span { color: var(--green-light); }
.nav-menu { display: flex; gap: 28px; align-items: center; }
.nav-menu a { color: var(--text-muted-dark); font-size: 0.9rem; font-weight: 500; transition: var(--transition); }
.nav-menu a:hover { color: #fff; }
.nav-cta { background: var(--green); color: #fff !important; padding: 8px 20px; border-radius: 8px; font-weight: 600 !important; }
.nav-cta:hover { background: var(--green-light); }
.nav-toggle { display: none; background: none; border: none; cursor: pointer; padding: 4px; }
.nav-toggle span { display: block; width: 24px; height: 2px; background: #fff; margin: 5px 0; transition: var(--transition); }

/* === TYPOGRAPHY === */
.section-title { font-family: var(--font-heading); font-size: 2.8rem; font-weight: 700; margin-bottom: 16px; line-height: 1.2; }
.section-subtitle { font-size: 1.15rem; opacity: 0.8; max-width: 600px; margin: 0 auto 48px; text-align: center; }
.section-text { font-size: 1.1rem; opacity: 0.85; line-height: 1.8; margin-bottom: 32px; }
.highlight-green { color: var(--green-light); }
.gold-text { color: var(--gold); }

/* === BUTTONS === */
.btn { display: inline-block; padding: 14px 32px; border-radius: 10px; font-weight: 600; font-size: 1rem; transition: var(--transition); cursor: pointer; border: none; font-family: var(--font-body); }
.btn-primary { background: var(--green); color: #fff; }
.btn-primary:hover { background: var(--green-light); transform: translateY(-2px); box-shadow: 0 8px 24px rgba(74,124,89,0.3); }
.btn-outline { border: 2px solid var(--green-light); color: var(--green-light); background: transparent; }
.btn-outline:hover { background: var(--green-light); color: #fff; }
.btn-gold { background: linear-gradient(135deg, var(--gold), var(--gold-light)); color: var(--dark-bg); font-weight: 700; }
.btn-gold:hover { transform: translateY(-2px); box-shadow: 0 8px 24px rgba(212,168,67,0.4); }

/* === HERO === */
.hero { min-height: 100vh; display: flex; align-items: center; text-align: center; overflow: hidden; }
.hero .container { position: relative; z-index: 2; }
.hero-gradient { position: absolute; inset: 0; background: radial-gradient(ellipse at 50% 80%, rgba(74,124,89,0.15) 0%, transparent 60%), radial-gradient(ellipse at 80% 20%, rgba(59,91,219,0.1) 0%, transparent 50%); pointer-events: none; }
.hero-badge { display: inline-block; background: rgba(74,124,89,0.2); border: 1px solid var(--green); color: var(--green-light); padding: 8px 24px; border-radius: 50px; font-size: 0.85rem; font-weight: 600; letter-spacing: 1px; text-transform: uppercase; margin-bottom: 28px; }
.hero-title { font-family: var(--font-heading); font-size: 4rem; font-weight: 800; line-height: 1.1; margin-bottom: 24px; }
.hero-subtitle { font-size: 1.2rem; color: var(--text-muted-dark); max-width: 600px; margin: 0 auto 48px; line-height: 1.7; }
.hero-stats { display: flex; justify-content: center; gap: 48px; margin-bottom: 48px; }
.stat { text-align: center; }
.stat-number { display: block; font-family: var(--font-heading); font-size: 2.5rem; font-weight: 700; color: var(--green-light); }
.stat-label { font-size: 0.85rem; color: var(--text-muted-dark); }

/* === CARDS === */
.cards-grid { display: grid; gap: 24px; }
.five-cards { grid-template-columns: repeat(5, 1fr); }
.four-cards { grid-template-columns: repeat(4, 1fr); }
.three-cards { grid-template-columns: repeat(3, 1fr); }
.card { background: var(--light-card); border: 1px solid var(--light-border); border-radius: 16px; padding: 32px 24px; transition: var(--transition); }
.dark .card { background: var(--dark-card); border-color: var(--dark-border); }
.card:hover { transform: translateY(-4px); box-shadow: 0 12px 32px rgba(0,0,0,0.08); }
.dark .card:hover { box-shadow: 0 12px 32px rgba(0,0,0,0.3); }
.card h3 { font-size: 1.1rem; font-weight: 600; margin-bottom: 8px; }
.card p { font-size: 0.9rem; opacity: 0.75; line-height: 1.6; }
.card-icon { width: 48px; height: 48px; margin-bottom: 16px; color: var(--green); }
.card-icon.accent { color: var(--blue); }
.card-icon svg { width: 100%; height: 100%; }
.card-icon-top { text-align: center; }
.card-icon-top .card-icon { margin: 0 auto 16px; }

/* === SPLIT LAYOUT === */
.split-layout { display: grid; grid-template-columns: 1fr 1fr; gap: 64px; align-items: center; }
.checklist { list-style: none; }
.checklist li { padding: 12px 0; font-size: 1.05rem; display: flex; align-items: center; gap: 12px; border-bottom: 1px solid var(--dark-border); }
.check { color: var(--green-light); font-weight: 700; font-size: 1.2rem; flex-shrink: 0; }
.efficiency-badge { background: linear-gradient(135deg, var(--dark-card), #1a2d40); border: 2px solid var(--green); border-radius: 50%; width: 280px; height: 280px; display: flex; flex-direction: column; align-items: center; justify-content: center; margin: 0 auto; }
.efficiency-number { font-family: var(--font-heading); font-size: 5rem; font-weight: 800; color: var(--green-light); line-height: 1; }
.efficiency-label { font-size: 0.85rem; color: var(--text-muted-dark); text-align: center; max-width: 160px; margin-top: 8px; }

/* === CASE TABLE === */
.case-header { text-align: center; margin-bottom: 48px; }
.case-badge { display: inline-block; background: var(--green); color: #fff; padding: 6px 20px; border-radius: 50px; font-size: 0.8rem; font-weight: 700; text-transform: uppercase; letter-spacing: 1px; margin-bottom: 16px; }
.case-table-wrapper { overflow-x: auto; margin-bottom: 32px; }
.case-table { width: 100%; max-width: 700px; margin: 0 auto; border-radius: 12px; overflow: hidden; }
.case-table th, .case-table td { padding: 16px 24px; text-align: center; }
.case-table thead { background: var(--dark-card); }
.case-table th { font-weight: 600; font-size: 0.9rem; text-transform: uppercase; letter-spacing: 0.5px; }
.case-table tbody tr { border-bottom: 1px solid var(--dark-border); }
.case-table tbody tr:hover { background: rgba(74,124,89,0.1); }
.highlight-col { background: rgba(74,124,89,0.15); color: var(--green-light); }
.case-conclusion { text-align: center; font-size: 1.05rem; max-width: 700px; margin: 0 auto; }

/* === ESG === */
.esg-pillars { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; margin-bottom: 64px; }
.esg-pillar { background: var(--blue); color: #fff; padding: 32px; border-radius: 16px; }
.esg-pillar h3 { font-size: 1.2rem; margin-bottom: 12px; font-weight: 700; }
.esg-pillar p { opacity: 0.9; font-size: 0.95rem; }
.carbon-stats { text-align: center; }
.carbon-title { font-family: var(--font-heading); font-size: 1.8rem; margin-bottom: 32px; }
.carbon-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 32px; }
.carbon-stat { text-align: center; }
.carbon-number, .money-counter { font-family: var(--font-heading); font-size: 3.5rem; font-weight: 700; color: var(--green); }
.carbon-unit { font-size: 1.5rem; color: var(--green); }
.carbon-label { display: block; font-size: 0.9rem; color: var(--text-muted-light); margin-top: 4px; }

/* === MARKET === */
.market-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 32px; margin-bottom: 64px; text-align: center; }
.market-big-number { padding: 32px; }
.market-value { font-family: var(--font-heading); font-size: 4rem; font-weight: 800; color: var(--green-light); }
.market-suffix { font-family: var(--font-heading); font-size: 2rem; color: var(--green-light); }
.market-label { display: block; font-size: 0.9rem; color: var(--text-muted-dark); margin-top: 8px; }
.market-segments { text-align: center; }
.market-segments h3 { font-size: 1.2rem; margin: 24px 0 16px; color: var(--text-muted-dark); }
.segments-list { display: flex; flex-wrap: wrap; justify-content: center; gap: 12px; }
.segment { background: var(--dark-card); border: 1px solid var(--dark-border); padding: 8px 20px; border-radius: 50px; font-size: 0.85rem; }
.segment.future { border-color: var(--blue); color: var(--blue-light); }

/* === DIFFERENTIAL === */
.differential { border-left: 4px solid var(--green); }
.dark .differential { border-left-color: var(--green-light); }

/* === GATE === */
.gate-section { padding: 120px 0; }
.gate-box { max-width: 520px; margin: 0 auto; text-align: center; background: var(--dark-card); border: 1px solid var(--dark-border); border-radius: 24px; padding: 64px 48px; }
.gate-icon { width: 64px; height: 64px; margin: 0 auto 24px; color: var(--gold); }
.gate-icon svg { width: 100%; height: 100%; }
.gate-title { font-family: var(--font-heading); font-size: 1.8rem; margin-bottom: 12px; }
.gate-text { font-size: 0.95rem; color: var(--text-muted-dark); margin-bottom: 32px; line-height: 1.7; }
.gate-input-group { display: flex; gap: 12px; justify-content: center; }
.gate-input { background: var(--dark-bg); border: 2px solid var(--dark-border); color: #fff; padding: 14px 20px; border-radius: 10px; font-size: 1rem; width: 240px; font-family: var(--font-body); outline: none; transition: var(--transition); }
.gate-input:focus { border-color: var(--gold); }
.gate-error { color: #e74c3c; font-size: 0.85rem; margin-top: 16px; }

/* === PROTECTED === */
.protected-hidden { display: none; }
.protected-visible { display: block; animation: fadeInUp 0.8s ease; }

/* === BUSINESS CARDS === */
.business-price { font-family: var(--font-heading); font-size: 1.8rem; font-weight: 700; color: var(--green); margin-bottom: 12px; }
.esg-price { color: var(--blue); font-size: 1.4rem; }

/* === FINANCE === */
.finance-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; margin-bottom: 64px; }
.finance-card { background: var(--dark-card); border: 1px solid var(--dark-border); border-radius: 16px; padding: 32px 20px; text-align: center; }
.finance-value { display: block; font-family: var(--font-heading); font-size: 2.2rem; font-weight: 700; color: var(--green-light); margin-bottom: 8px; }
.finance-label { font-size: 0.85rem; color: var(--text-muted-dark); }

/* === REVENUE CHART === */
.revenue-chart { text-align: center; }
.revenue-chart h3 { margin-bottom: 32px; font-size: 1.2rem; }
.chart-bars { display: flex; align-items: flex-end; justify-content: center; gap: 16px; height: 240px; }
.chart-bar { width: 60px; background: linear-gradient(to top, var(--green), var(--green-light)); border-radius: 8px 8px 0 0; height: var(--h); display: flex; flex-direction: column; justify-content: flex-start; align-items: center; padding-top: 8px; transition: height 1s ease; position: relative; }
.bar-label { font-size: 0.7rem; color: #fff; font-weight: 600; }
.bar-val { font-size: 0.65rem; color: rgba(255,255,255,0.7); position: absolute; top: -22px; white-space: nowrap; }

/* === INVEST === */
.invest-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; margin-bottom: 64px; }
.invest-card { background: var(--light-card); border: 1px solid var(--light-border); border-radius: 16px; padding: 40px 20px; text-align: center; }
.invest-card.main { border: 2px solid var(--green); }
.invest-card.highlight { border: 2px solid var(--gold); }
.invest-value { display: block; font-family: var(--font-heading); font-size: 2.2rem; font-weight: 700; color: var(--text-light); margin-bottom: 8px; }
.invest-label { font-size: 0.85rem; color: var(--text-muted-light); }
.use-of-funds h3 { text-align: center; font-family: var(--font-heading); font-size: 1.6rem; margin-bottom: 32px; }
.funds-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.fund-item { background: var(--light-card); border: 1px solid var(--light-border); border-radius: 12px; padding: 24px; }
.fund-item strong { color: var(--green); }
.fund-item p { font-size: 0.85rem; color: var(--text-muted-light); margin-top: 4px; }

/* === REASONS === */
.reasons-list { max-width: 700px; margin: 0 auto; }
.reason { display: flex; gap: 20px; align-items: flex-start; padding: 20px 0; border-bottom: 1px solid var(--dark-border); }
.reason-check { flex-shrink: 0; width: 32px; height: 32px; background: var(--green); color: #fff; border-radius: 50%; display: flex; align-items: center; justify-content: center; font-weight: 700; font-size: 1rem; }

/* === TIMELINE === */
.timeline { max-width: 600px; margin: 0 auto; position: relative; padding-left: 60px; }
.timeline::before { content: ''; position: absolute; left: 24px; top: 0; bottom: 0; width: 3px; background: var(--green); border-radius: 3px; }
.timeline-item { margin-bottom: 40px; position: relative; }
.timeline-marker { position: absolute; left: -60px; width: 48px; height: 48px; background: var(--green); color: #fff; border-radius: 50%; display: flex; align-items: center; justify-content: center; font-family: var(--font-heading); font-weight: 700; font-size: 1.2rem; z-index: 1; }
.timeline-content h3 { font-size: 1.1rem; margin-bottom: 4px; }
.timeline-content p { font-size: 0.9rem; color: var(--text-muted-light); }

/* === BARRIERS === */
.barriers-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.barrier { background: var(--dark-card); border: 1px solid var(--dark-border); border-radius: 12px; padding: 28px; border-top: 3px solid var(--gold); }
.barrier strong { display: block; margin-bottom: 8px; font-size: 1rem; }
.barrier p { font-size: 0.85rem; color: var(--text-muted-dark); }

/* === FOOTER === */
.footer { text-align: center; padding: 100px 0 48px; }
.footer-title { font-family: var(--font-heading); font-size: 2.5rem; margin-bottom: 16px; }
.footer-text { font-size: 1.05rem; color: var(--text-muted-dark); margin-bottom: 32px; }
.footer-ctas { display: flex; gap: 16px; justify-content: center; margin-bottom: 64px; }
.footer-brand { border-top: 1px solid var(--dark-border); padding-top: 32px; }
.footer-logo { font-size: 1.8rem; display: block; margin-bottom: 12px; }
.copyright { font-size: 0.8rem; color: var(--text-muted-dark); }

/* === ANIMATIONS === */
.reveal { opacity: 0; transform: translateY(30px); transition: opacity 0.7s ease, transform 0.7s ease; }
.reveal.visible { opacity: 1; transform: translateY(0); }
@keyframes fadeInUp { from { opacity: 0; transform: translateY(40px); } to { opacity: 1; transform: translateY(0); } }

/* === RESPONSIVE === */
@media (max-width: 992px) {
  .five-cards { grid-template-columns: repeat(3, 1fr); }
  .hero-title { font-size: 3rem; }
  .section-title { font-size: 2.2rem; }
  .split-layout { grid-template-columns: 1fr; gap: 40px; }
  .finance-grid, .invest-grid { grid-template-columns: repeat(2, 1fr); }
  .barriers-grid { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 768px) {
  .section { padding: 64px 0; }
  .nav-menu { display: none; position: fixed; top: 0; right: 0; width: 280px; height: 100vh; background: var(--dark-bg); flex-direction: column; padding: 80px 32px 32px; gap: 20px; box-shadow: -4px 0 20px rgba(0,0,0,0.3); }
  .nav-menu.open { display: flex; }
  .nav-toggle { display: block; }
  .hero-title { font-size: 2.4rem; }
  .hero-stats { gap: 24px; }
  .stat-number { font-size: 2rem; }
  .five-cards, .four-cards, .three-cards { grid-template-columns: 1fr; }
  .esg-pillars { grid-template-columns: 1fr; }
  .carbon-grid, .market-grid { grid-template-columns: 1fr; }
  .finance-grid, .invest-grid { grid-template-columns: 1fr; }
  .funds-grid { grid-template-columns: 1fr; }
  .barriers-grid { grid-template-columns: 1fr; }
  .efficiency-badge { width: 200px; height: 200px; }
  .efficiency-number { font-size: 3.5rem; }
  .gate-input-group { flex-direction: column; align-items: center; }
  .gate-input { width: 100%; }
  .gate-box { padding: 40px 24px; }
  .chart-bars { gap: 8px; }
  .chart-bar { width: 36px; }
  .footer-ctas { flex-direction: column; align-items: center; }
  .market-value { font-size: 3rem; }
}
@media (max-width: 480px) {
  .hero-title { font-size: 1.8rem; }
  .hero-subtitle { font-size: 1rem; }
  .section-title { font-size: 1.8rem; }
  .hero-stats { flex-direction: column; gap: 16px; }
}