/* ClimateTogether — demogui statik tanıtım sayfası. Harici font/CDN yok. */
:root {
  --ink: #0b2340;
  --text: #2b3a4a;
  --muted: #5b6b7a;
  --teal: #0e7c6b;
  --teal-dark: #0a6457;
  --green: #0f8a6c;
  --line: #e7edf0;
  --soft: #f5f8f7;
  --banner: #0b4b50;
  --radius: 10px;
  --font: "Inter", "Segoe UI", system-ui, -apple-system, "Helvetica Neue", Arial, sans-serif;
}

*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body { margin: 0; font-family: var(--font); color: var(--text); background: #fff; line-height: 1.5; }
img { max-width: 100%; height: auto; display: block; }
a { color: inherit; text-decoration: none; }
h1, h2, h3 { color: var(--ink); margin: 0; }
ul { list-style: none; margin: 0; padding: 0; }
.sprite { display: none; }

.container { width: 100%; max-width: 1180px; margin: 0 auto; padding: 0 28px; }

/* ikonlar */
svg { width: 24px; height: 24px; fill: none; stroke: currentColor; stroke-width: 1.6; stroke-linecap: round; stroke-linejoin: round; flex: none; }
.ico-xs { width: 14px; height: 14px; }
.ico-sm { width: 18px; height: 18px; }
.ico-md { width: 30px; height: 30px; }
.ico-lg { width: 52px; height: 52px; stroke-width: 1.3; }
.ico-stat { width: 38px; height: 38px; color: var(--teal); }
.filled { fill: currentColor; stroke: none; }
.teal { color: var(--teal); }
.green { color: #2f9a54; }
.deep { color: var(--teal-dark); }
.violet { color: #5b4aa8; }
.orange { color: #e8902c; }
.blue { color: #2b78d0; }

/* butonlar */
.btn { display: inline-flex; align-items: center; gap: 10px; padding: 14px 22px; border-radius: 8px; font-weight: 600; font-size: 15px; border: 1.5px solid transparent; transition: background .15s, color .15s; }
.btn-sm { padding: 9px 16px; font-size: 14px; }
.btn-primary { background: var(--teal); color: #fff; }
.btn-primary:hover { background: var(--teal-dark); }
.btn-outline { border-color: var(--teal); color: var(--teal); background: #fff; }
.btn-outline:hover { background: var(--soft); }
.btn-light { background: #fff; color: var(--teal-dark); }

/* üst menü */
.site-header { background: #fff; position: relative; z-index: 2; }
.header-inner { display: flex; align-items: center; gap: 28px; height: 84px; }
.brand { display: flex; align-items: center; gap: 10px; }
.brand-text { display: flex; flex-direction: column; line-height: 1.15; }
.brand-text strong { color: var(--ink); font-size: 21px; letter-spacing: -.01em; white-space: nowrap; }
.brand-text small { color: var(--ink); font-size: 10.5px; opacity: .85; white-space: nowrap; }
.main-nav { display: flex; gap: 26px; margin-left: auto; font-size: 14px; color: var(--ink); white-space: nowrap; }
.main-nav a:hover { color: var(--teal); }
.header-actions { display: flex; align-items: center; gap: 18px; white-space: nowrap; }
.lang { display: inline-flex; align-items: center; gap: 6px; font-size: 14px; color: var(--ink); }

/* hero */
.hero { position: relative; overflow: hidden; min-height: 430px; }
.hero-media { position: absolute; right: 0; top: 0; height: 100%; width: 56%; object-fit: cover; object-position: left center;
  -webkit-mask-image: linear-gradient(to right, transparent 0, #000 22%); mask-image: linear-gradient(to right, transparent 0, #000 22%); }
.hero-inner { position: relative; padding-top: 44px; padding-bottom: 72px; }
.hero-copy { max-width: 520px; }
.hero h1 { font-size: clamp(34px, 4.6vw, 52px); line-height: 1.06; letter-spacing: -.02em; font-weight: 800; }
.hero h1 .accent { color: var(--green); }
.hero p { font-size: 15.5px; margin: 22px 0 26px; max-width: 470px; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 10px; }

/* paydaş kartları */
.network { padding: 20px 0 8px; text-align: center; }
.network h2, .impact h2 { font-size: 21px; }
.lead { margin: 6px 0 22px; font-size: 14px; color: var(--text); }
.cards { display: grid; grid-template-columns: repeat(7, 1fr); gap: 12px; }
.card { background: #fff; border: 1px solid var(--line); border-radius: var(--radius); padding: 22px 10px 24px; box-shadow: 0 2px 10px rgba(11, 35, 64, .04); display: flex; flex-direction: column; align-items: center; }
.card svg { margin-bottom: 14px; }
.card h3 { font-size: 13px; font-weight: 600; min-height: 34px; display: flex; align-items: center; }
.card p { margin: 6px 0 0; font-size: 11px; color: var(--muted); }
.link-more { display: inline-flex; align-items: center; gap: 8px; margin-top: 18px; color: var(--teal); font-size: 14px; font-weight: 600; }

/* ilkeler */
.principles { display: grid; grid-template-columns: repeat(4, 1fr); background: var(--soft); border-radius: var(--radius); padding: 26px 20px; margin: 22px 0; }
.principles li { display: flex; align-items: center; gap: 16px; padding: 0 22px; color: var(--ink); font-size: 14.5px; }
.principles li + li { border-left: 1px solid var(--line); }
.badge { width: 58px; height: 58px; border-radius: 50%; background: #fff; border: 1px solid var(--line); display: grid; place-items: center; color: var(--teal); }

/* istatistikler */
.impact { margin: 6px 0 22px; }
.impact-inner { text-align: center; padding-top: 24px; padding-bottom: 8px; }
.stats { display: grid; grid-template-columns: repeat(6, 1fr); gap: 12px; text-align: left; }
.stats li { display: flex; align-items: center; gap: 10px; background: #fff; border: 1px solid var(--line); border-radius: var(--radius); padding: 18px 10px; box-shadow: 0 2px 10px rgba(11, 35, 64, .04); }
.stats span { font-size: 11px; color: var(--muted); line-height: 1.35; }
.stats strong { display: block; color: var(--ink); font-size: 19px; font-weight: 700; margin-bottom: 2px; white-space: nowrap; }

/* COP31 bandı */
.banner { display: flex; align-items: center; gap: 28px; background: var(--banner); color: #fff; border-radius: var(--radius); padding: 26px 50px 26px 26px; margin: 12px 0 22px; }
.banner-globe { width: 62px; height: 62px; stroke-width: 1; opacity: .85; }
.banner h2 { color: #fff; font-size: 22px; }
.banner p { margin: 6px 0 0; font-size: 13px; max-width: 470px; opacity: .92; }
.banner .btn { margin-left: auto; font-size: 14px; }

/* footer */
.site-footer { padding-bottom: 10px; }
.footer-box { display: grid; grid-template-columns: 1.3fr 2.6fr 1.2fr; gap: 28px; background: var(--soft); border-radius: var(--radius); padding: 28px; }
.footer-brand p { font-size: 12px; margin: 14px 0 18px; max-width: 220px; }
.social { display: flex; gap: 10px; }
.social a { width: 26px; height: 26px; border-radius: 50%; background: var(--ink); color: #fff; display: grid; place-items: center; font-size: 11px; font-weight: 700; }
.footer-cols { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; }
.footer-cols h3 { font-size: 13px; margin-bottom: 10px; }
.footer-cols a { display: block; font-size: 12px; color: var(--text); margin: 0 0 6px; }
.footer-cols a:hover, .footer-bottom a:hover { color: var(--teal); }
.footer-partners { border-left: 1px solid var(--line); padding-left: 22px; }
.footer-partners p { font-size: 11px; margin: 0 0 12px; }
.footer-partners img + img { margin-top: 14px; padding-top: 14px; border-top: 1px solid var(--line); }
.footer-bottom { display: flex; align-items: center; justify-content: space-between; gap: 16px; font-size: 11px; color: var(--muted); padding-top: 14px; padding-bottom: 6px; }
.footer-bottom-links { display: flex; gap: 40px; }

/* duyarlı */
@media (max-width: 1180px) {
  .header-inner { gap: 20px; }
  .main-nav { gap: 18px; font-size: 13.5px; }
}
@media (max-width: 960px) {
  .cards { grid-template-columns: repeat(4, 1fr); }
  .stats { grid-template-columns: repeat(3, 1fr); }
}
@media (max-width: 900px) {
  .main-nav { display: none; }
  .header-actions { margin-left: auto; }
  .hero-media { position: relative; width: 100%; height: auto; -webkit-mask-image: none; mask-image: none; }
  .hero-inner { padding-top: 28px; padding-bottom: 36px; }
  .principles { grid-template-columns: repeat(2, 1fr); row-gap: 22px; }
  .principles li:nth-child(3) { border-left: 0; }
  .banner { flex-wrap: wrap; padding: 24px; }
  .banner .btn { margin-left: 0; }
  .footer-box { grid-template-columns: 1fr; }
  .footer-partners { border-left: 0; padding-left: 0; }
}
@media (max-width: 560px) {
  .container { padding: 0 18px; }
  .cards { grid-template-columns: repeat(2, 1fr); }
  .stats { grid-template-columns: repeat(2, 1fr); }
  .principles { grid-template-columns: 1fr; }
  .principles li + li { border-left: 0; }
  .footer-cols { grid-template-columns: repeat(2, 1fr); }
  .footer-bottom { flex-direction: column; align-items: flex-start; }
  .header-actions .lang { display: none; }
  .brand-text strong { font-size: 18px; }
  .brand-text small { font-size: 9.5px; }
}