/* ECO AI — ecoai.site | Dark Forest Green */
:root {
  --bg-deep:        #030905;
  --bg-dark:        #071009;
  --bg-card:        #0D1E0F;
  --bg-card-hover:  #112614;
  --border:         rgba(34,197,94,.15);
  --border-strong:  rgba(34,197,94,.30);
  --accent:         #22C55E;
  --accent-light:   #4ADE80;
  --accent-dark:    #16A34A;
  --glow:           rgba(34,197,94,.10);
  --glow-strong:    rgba(34,197,94,.22);
  --text:           #FFFFFF;
  --text-secondary: #CBD5E1;
  --text-muted:     #64748B;
  --text-green:     #86EFAC;
  --red:            #EF4444;
  --orange:         #F97316;
  --radius:         12px;
  --radius-lg:      20px;
  --max-width:      1200px;
  --shadow-card:    0 4px 24px rgba(0,0,0,.45);
  --shadow-green:   0 0 40px rgba(34,197,94,.12);
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  background: var(--bg-deep);
  color: var(--text);
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', sans-serif;
  font-size: 16px;
  line-height: 1.65;
  min-height: 100vh;
}
a { color: var(--accent); text-decoration: none; transition: color .2s; }
a:hover { color: var(--accent-light); }
img { max-width: 100%; height: auto; display: block; }
button { cursor: pointer; font-family: inherit; }

/* ── Layout ─────────────────────────────────────── */
.container { max-width: var(--max-width); margin: 0 auto; padding: 0 24px; }
section { padding: 80px 24px; }
section.tight { padding: 56px 24px; }

/* ── Navigation ──────────────────────────────────── */
nav {
  position: sticky; top: 0; z-index: 100;
  background: rgba(3,9,5,.93);
  backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--border);
}
.nav-inner {
  max-width: var(--max-width); margin: 0 auto; padding: 0 24px;
  display: flex; align-items: center; gap: 32px; height: 64px;
}
.nav-logo {
  display: flex; align-items: center; gap: 10px;
  font-size: 18px; font-weight: 700; color: var(--text); letter-spacing: -.4px;
  flex-shrink: 0;
}
.nav-logo svg { flex-shrink: 0; }
.nav-links { display: flex; align-items: center; gap: 6px; flex: 1; }
.nav-links a {
  color: var(--text-secondary); font-size: 14.5px; font-weight: 500;
  padding: 6px 12px; border-radius: 8px;
  transition: color .2s, background .2s;
}
.nav-links a:hover { color: var(--accent); background: var(--glow); }
.nav-links a.active { color: var(--accent); }
.nav-cta {
  margin-left: auto; flex-shrink: 0;
  background: var(--accent); color: #030905;
  padding: 9px 22px; border-radius: 8px;
  font-size: 14px; font-weight: 600;
  transition: background .2s, transform .15s;
}
.nav-cta:hover { background: var(--accent-light); color: #030905; transform: translateY(-1px); }
.nav-mobile-btn { display: none; background: none; border: none; color: var(--text); font-size: 24px; padding: 4px 8px; }

/* ── Language Switcher ───────────────────────── */
.lang-switcher {
  display: flex; align-items: center; gap: 6px;
  margin-left: auto; flex-shrink: 0;
  font-size: 13px; font-weight: 600;
}
.lang-switcher a {
  color: var(--text-muted); padding: 4px 8px; border-radius: 6px;
  transition: color .2s, background .2s;
  text-decoration: none;
}
.lang-switcher a:hover { color: var(--accent); }
.lang-switcher a.lang-active { color: var(--accent); background: var(--glow); }
.lang-switcher .sep { color: var(--border-strong); user-select: none; }

/* ── Footer ──────────────────────────────────────── */
footer {
  background: var(--bg-dark);
  border-top: 1px solid var(--border);
  padding: 52px 24px 28px;
  margin-top: 0;
}
.footer-inner { max-width: var(--max-width); margin: 0 auto; }
.footer-grid {
  display: grid; grid-template-columns: 1.8fr 1fr 1fr 1fr; gap: 40px;
  margin-bottom: 40px;
}
.footer-brand p { color: var(--text-muted); font-size: 14px; margin-top: 14px; max-width: 260px; line-height: 1.7; }
.footer-col h4 {
  font-size: 11.5px; font-weight: 700; color: var(--text-green);
  text-transform: uppercase; letter-spacing: .08em; margin-bottom: 14px;
}
.footer-col ul { list-style: none; }
.footer-col ul li { margin-bottom: 9px; }
.footer-col ul li a { color: var(--text-secondary); font-size: 14px; transition: color .2s; }
.footer-col ul li a:hover { color: var(--accent); }
.footer-bottom {
  border-top: 1px solid var(--border); padding-top: 22px;
  display: flex; align-items: center; justify-content: space-between; flex-wrap: wrap; gap: 12px;
}
.footer-bottom p { color: var(--text-muted); font-size: 13px; }
.footer-social { display: flex; gap: 10px; }
.footer-social a {
  display: flex; align-items: center; justify-content: center;
  width: 36px; height: 36px; border-radius: 8px;
  border: 1px solid var(--border); color: var(--text-muted);
  transition: border-color .2s, color .2s, background .2s;
}
.footer-social a:hover { border-color: var(--accent); color: var(--accent); background: var(--glow); }

/* ── Buttons ─────────────────────────────────────── */
.btn {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 13px 28px; border-radius: 10px;
  font-size: 15px; font-weight: 600; border: none;
  transition: all .2s; cursor: pointer; text-decoration: none;
}
.btn-primary { background: var(--accent); color: #030905; }
.btn-primary:hover { background: var(--accent-light); color: #030905; transform: translateY(-2px); box-shadow: 0 6px 20px rgba(34,197,94,.3); }
.btn-outline { background: transparent; color: var(--text); border: 1.5px solid var(--border-strong); }
.btn-outline:hover { border-color: var(--accent); color: var(--accent); }
.btn-sm { padding: 9px 20px; font-size: 14px; border-radius: 8px; }

/* ── Badges ──────────────────────────────────────── */
.badge {
  display: inline-flex; align-items: center; gap: 5px;
  padding: 4px 10px; border-radius: 20px; font-size: 12px; font-weight: 500;
  background: var(--glow); border: 1px solid var(--border); color: var(--text-green);
  white-space: nowrap;
}
.badge-orange { background: rgba(249,115,22,.1); border-color: rgba(249,115,22,.25); color: #FED7AA; }
.badge-red    { background: rgba(239,68,68,.1);  border-color: rgba(239,68,68,.25);  color: #FCA5A5; }

/* ── Section Header ──────────────────────────────── */
.section-header { text-align: center; margin-bottom: 52px; }
.section-tag {
  display: inline-flex; align-items: center; gap: 8px;
  color: var(--accent); font-size: 12px; font-weight: 700;
  text-transform: uppercase; letter-spacing: .1em; margin-bottom: 14px;
}
.section-header h2 {
  font-size: clamp(26px, 4vw, 40px); font-weight: 800;
  letter-spacing: -.5px; line-height: 1.2; margin-bottom: 14px;
}
.section-header p { color: var(--text-secondary); font-size: 17px; max-width: 560px; margin: 0 auto; }

/* ── Report Card ─────────────────────────────────── */
.report-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: border-color .2s, transform .2s, box-shadow .2s;
  display: flex; flex-direction: column;
}
.report-card-photo {
  height: 180px; position: relative; overflow: hidden;
  background: #040D06;
  flex-shrink: 0;
}
.report-card-photo img {
  position: absolute; inset: 0; width: 100%; height: 100%;
  object-fit: cover; object-position: center 20%;
  display: block;
}
.report-card-photo-overlay {
  position: absolute; inset: 0; z-index: 1;
  background: linear-gradient(
    to bottom,
    rgba(3,9,5,.1) 0%,
    rgba(3,9,5,.0) 40%,
    rgba(3,9,5,.5) 100%
  );
}
.report-card:hover {
  border-color: var(--border-strong);
  transform: translateY(-3px);
  box-shadow: var(--shadow-card), var(--shadow-green);
}
.report-card-header { padding: 22px 22px 16px; flex: 1; }
.report-card-meta {
  display: flex; align-items: center; gap: 8px; flex-wrap: wrap; margin-bottom: 12px;
}
.report-card h3 { font-size: 18px; font-weight: 700; line-height: 1.3; }
.report-card-subtitle { color: var(--accent); font-size: 13px; font-weight: 500; margin-top: 5px; }
.report-metrics {
  display: grid; grid-template-columns: 1fr 1fr;
  gap: 1px; background: var(--border); border-top: 1px solid var(--border);
}
.metric-box { background: var(--bg-card); padding: 14px 16px; }
.metric-icon { font-size: 20px; margin-bottom: 4px; }
.metric-label { font-size: 11px; color: var(--text-muted); font-weight: 500; text-transform: uppercase; letter-spacing: .05em; }
.metric-value { font-size: 15px; font-weight: 700; color: var(--text); margin-top: 2px; }
.metric-unit { font-size: 11px; color: var(--text-muted); font-weight: 400; }
.report-card-footer {
  padding: 14px 22px;
  border-top: 1px solid var(--border);
  display: flex; align-items: center; justify-content: space-between;
}
.report-card-footer .read-more {
  color: var(--accent); font-size: 13px; font-weight: 600;
  display: flex; align-items: center; gap: 4px;
}
.preliminary {
  font-size: 11px; padding: 3px 8px; border-radius: 4px;
  background: rgba(249,115,22,.12); color: #FDBA74;
  border: 1px solid rgba(249,115,22,.25); font-weight: 500;
}

/* ── Cards Grid ──────────────────────────────────── */
.cards-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(340px, 1fr)); gap: 24px; }

/* ── Divider ─────────────────────────────────────── */
.divider { width: 60px; height: 3px; background: var(--accent); border-radius: 2px; margin: 20px auto 0; }

/* ── Feature List ────────────────────────────────── */
.features-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(300px, 1fr)); gap: 20px; }
.feature-card {
  background: var(--bg-card); border: 1px solid var(--border);
  border-radius: var(--radius); padding: 24px;
  transition: border-color .2s;
}
.feature-card:hover { border-color: var(--border-strong); }
.feature-icon {
  width: 44px; height: 44px; border-radius: 10px;
  background: var(--glow); border: 1px solid var(--border);
  display: flex; align-items: center; justify-content: center;
  font-size: 22px; margin-bottom: 14px;
}
.feature-card h3 { font-size: 16px; font-weight: 700; margin-bottom: 8px; }
.feature-card p { color: var(--text-secondary); font-size: 14px; line-height: 1.6; }

/* ── Form ────────────────────────────────────────── */
.form-group { margin-bottom: 18px; }
.form-group label { display: block; font-size: 14px; font-weight: 500; color: var(--text-secondary); margin-bottom: 7px; }
.form-group input,
.form-group select,
.form-group textarea {
  width: 100%;
  background: rgba(255,255,255,.04);
  border: 1.5px solid var(--border);
  border-radius: 8px;
  padding: 12px 16px;
  color: var(--text); font-size: 15px; font-family: inherit;
  transition: border-color .2s, box-shadow .2s;
  outline: none;
}
.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(34,197,94,.12);
}
.form-group select { cursor: pointer; }
.form-group select option { background: #0D1E0F; }
.form-group textarea { resize: vertical; min-height: 100px; }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.form-note { font-size: 12px; color: var(--text-muted); margin-top: 12px; }
.form-success {
  display: none; text-align: center; padding: 32px;
  background: var(--glow); border: 1px solid var(--border-strong);
  border-radius: var(--radius); margin-top: 24px;
}
.form-success.visible { display: block; }
.form-success h3 { font-size: 20px; margin-bottom: 8px; }
.form-success p { color: var(--text-secondary); }

/* ── Filter Bar ──────────────────────────────────── */
.filter-bar {
  background: var(--bg-dark); border: 1px solid var(--border);
  border-radius: var(--radius); padding: 20px 24px;
  display: flex; align-items: center; gap: 16px; flex-wrap: wrap;
  margin-bottom: 36px;
}
.filter-bar label { font-size: 13px; color: var(--text-muted); font-weight: 500; white-space: nowrap; }
.filter-bar select, .filter-bar input {
  background: rgba(255,255,255,.04); border: 1px solid var(--border);
  border-radius: 8px; padding: 9px 14px; color: var(--text);
  font-size: 14px; font-family: inherit; outline: none; cursor: pointer;
  transition: border-color .2s;
}
.filter-bar select:focus, .filter-bar input:focus { border-color: var(--accent); }
.filter-bar select option { background: #0D1E0F; }
.filter-group { display: flex; align-items: center; gap: 8px; }
.filter-count { margin-left: auto; font-size: 13px; color: var(--text-muted); white-space: nowrap; }

/* ── Timeline ────────────────────────────────────── */
.timeline { position: relative; padding-left: 28px; }
.timeline::before { content: ''; position: absolute; left: 8px; top: 4px; bottom: 4px; width: 2px; background: var(--border); border-radius: 1px; }
.timeline-item { position: relative; margin-bottom: 36px; }
.timeline-item::before {
  content: ''; position: absolute; left: -24px; top: 5px;
  width: 12px; height: 12px; border-radius: 50%;
  background: var(--bg-card); border: 2.5px solid var(--accent);
}
.timeline-item .year { font-size: 12px; color: var(--accent); font-weight: 700; margin-bottom: 4px; text-transform: uppercase; letter-spacing: .08em; }
.timeline-item h3 { font-size: 17px; font-weight: 700; margin-bottom: 6px; }
.timeline-item p { color: var(--text-secondary); font-size: 14.5px; line-height: 1.65; }

/* ── How it works steps ──────────────────────────── */
.steps { display: flex; flex-direction: column; gap: 0; position: relative; }
.steps::before { content: ''; position: absolute; left: 22px; top: 44px; bottom: 44px; width: 2px; background: var(--border); }
.step { display: flex; gap: 20px; align-items: flex-start; position: relative; padding-bottom: 28px; }
.step:last-child { padding-bottom: 0; }
.step-num {
  flex-shrink: 0; width: 44px; height: 44px; border-radius: 50%;
  background: var(--accent); color: #030905; font-weight: 800; font-size: 16px;
  display: flex; align-items: center; justify-content: center; position: relative; z-index: 1;
}
.step-content h3 { font-size: 16px; font-weight: 700; margin-bottom: 5px; margin-top: 9px; }
.step-content p { color: var(--text-secondary); font-size: 14.5px; }

/* ── Glow Stat ───────────────────────────────────── */
.stat-card {
  background: var(--bg-card); border: 1px solid var(--border);
  border-radius: var(--radius); padding: 28px 24px; text-align: center;
}
.stat-card .stat-num { font-size: 40px; font-weight: 800; color: var(--accent); letter-spacing: -1px; }
.stat-card .stat-label { font-size: 14px; color: var(--text-secondary); margin-top: 6px; }
.stats-row { display: grid; grid-template-columns: repeat(auto-fill, minmax(200px, 1fr)); gap: 20px; margin: 48px 0; }

/* ── Partners ────────────────────────────────────── */
.partners-grid { display: flex; flex-wrap: wrap; gap: 12px; justify-content: center; }
.partner-pill {
  background: var(--bg-card); border: 1px solid var(--border);
  border-radius: 8px; padding: 10px 18px;
  font-size: 13px; color: var(--text-secondary);
  transition: border-color .2s, color .2s;
}
.partner-pill:hover { border-color: var(--border-strong); color: var(--text); }

/* ── Responsive ──────────────────────────────────── */
@media (max-width: 900px) {
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .footer-brand { grid-column: 1 / -1; }
}
@media (max-width: 768px) {
  .nav-links { display: none; }
  .nav-mobile-btn { display: block; }
  section { padding: 56px 16px; }
  .form-row { grid-template-columns: 1fr; }
  .filter-bar { flex-direction: column; align-items: stretch; }
  .filter-count { margin-left: 0; }
}
@media (max-width: 600px) {
  .cards-grid { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; }
  .features-grid { grid-template-columns: 1fr; }
  .nav-cta { display: none; }
}