/* Operation International Gift of Knowledge — shared styles
   Palette: warm browns, oranges & green. Supports light + dark mode.
   Theme variable names kept stable; only values change between modes. */
:root{
  /* ORANGE (primary) */
  --clay:#C85A28;        /* burnt orange */
  --clay-dark:#A6431E;
  /* AMBER / GOLD-ORANGE */
  --gold:#DD8413;
  --gold-soft:#F4A93F;
  /* GREEN (accent — formerly teal) */
  --teal:#5E7A34;
  --teal-dark:#46602A;
  /* BROWN + NEUTRALS */
  --cream:#FBF4E8;       /* page bg */
  --cream-2:#F2E5D1;     /* alt section bg */
  --surface:#FFFFFF;     /* cards */
  --ink:#3C2A1A;         /* espresso-brown text */
  --ink-soft:#7A6248;    /* soft brown text */
  --line:#E7D6BC;
  --white:#fff;
  /* component tints */
  --tag-bg:#E7EFD9; --tag-ink:#46602A;
  --header-bg:rgba(251,244,232,.92);
  --note-bg:#FFF7E6; --note-border:#F4A93F;
  --grad-green:linear-gradient(135deg,#5E7A34,#3F5722);
  --grad-orange:linear-gradient(135deg,#C85A28,#9C3F18);
  --grad-brown:linear-gradient(135deg,#6E4A2A,#46301A);
  --shadow:0 14px 40px rgba(85,52,24,.16);
  --shadow-sm:0 6px 18px rgba(85,52,24,.10);
  --radius:18px;
  --maxw:1140px;
  --serif:"Fraunces",Georgia,"Times New Roman",serif;
  --sans:"Inter",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
}
[data-theme="dark"]{
  --clay:#E2723A;
  --clay-dark:#C85A28;
  --gold:#E89A2A;
  --gold-soft:#F6BB5A;
  --teal:#8DA85A;
  --teal-dark:#2A3A18;
  --cream:#1B130C;       /* deep espresso bg */
  --cream-2:#241A11;
  --surface:#2A1F15;
  --ink:#F3E8D7;
  --ink-soft:#C8B499;
  --line:#3D2E1E;
  --tag-bg:#33421F; --tag-ink:#CBE0A4;
  --header-bg:rgba(20,14,9,.94);
  --note-bg:#2E2512; --note-border:#7A5E22;
  --grad-green:linear-gradient(135deg,#4C6429,#2F4019);
  --grad-orange:linear-gradient(135deg,#B14E22,#7E3214);
  --grad-brown:linear-gradient(135deg,#553720,#352213);
  --shadow:0 16px 44px rgba(0,0,0,.55);
  --shadow-sm:0 8px 22px rgba(0,0,0,.45);
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;font-family:var(--sans);color:var(--ink);background:var(--cream);
  line-height:1.65;-webkit-font-smoothing:antialiased;transition:background .3s ease,color .3s ease;
  overflow-x:hidden;
}
html{overflow-x:hidden}
img{max-width:100%;display:block}
a{color:var(--clay);text-decoration:none}
a:hover{text-decoration:underline}
h1,h2,h3,h4{font-family:var(--serif);line-height:1.12;color:var(--ink);font-weight:600;margin:0 0 .5em}
h1{font-size:clamp(2.2rem,5vw,3.6rem)}
h2{font-size:clamp(1.7rem,3.4vw,2.6rem)}
h3{font-size:1.35rem}
p{margin:0 0 1.1em}
.wrap{max-width:var(--maxw);margin:0 auto;padding:0 22px}
.eyebrow{font-family:var(--sans);font-weight:700;letter-spacing:.14em;text-transform:uppercase;
  font-size:.78rem;color:var(--clay);margin-bottom:.6em}
.center{text-align:center}
.lead{font-size:1.2rem;color:var(--ink-soft)}

/* ---------- buttons ---------- */
.btn{display:inline-flex;align-items:center;gap:.5em;font-family:var(--sans);font-weight:700;
  font-size:1rem;padding:.85em 1.6em;border-radius:999px;border:2px solid transparent;
  cursor:pointer;transition:transform .15s ease,box-shadow .15s ease,background .15s;text-decoration:none}
.btn:hover{text-decoration:none;transform:translateY(-2px)}
.btn-primary{background:var(--clay);color:#fff;box-shadow:var(--shadow-sm)}
.btn-primary:hover{background:var(--clay-dark);color:#fff}
.btn-gold{background:var(--gold);color:#3a2412;box-shadow:var(--shadow-sm)}
.btn-gold:hover{background:var(--gold-soft);color:#3a2412}
.btn-ghost{background:transparent;color:#fff;border-color:rgba(255,255,255,.7)}
.btn-ghost:hover{background:rgba(255,255,255,.14);color:#fff}
.btn-outline{background:var(--surface);color:var(--teal);border-color:var(--teal)}
.btn-outline:hover{background:var(--teal);color:#fff}
.btn-lg{font-size:1.1rem;padding:1em 2em}

/* ---------- header ---------- */
.site-header{position:sticky;top:0;z-index:50;background:var(--header-bg);
  backdrop-filter:blur(8px);border-bottom:1px solid var(--line);transition:background .3s}
.nav{display:flex;align-items:center;justify-content:space-between;gap:16px;
  max-width:var(--maxw);margin:0 auto;padding:10px 22px}
.brand{display:flex;align-items:center;gap:12px;font-family:var(--serif);font-weight:600;
  color:var(--ink);font-size:1.02rem;line-height:1.1}
.brand:hover{text-decoration:none}
.brand img{width:46px;height:46px}
.brand small{display:block;font-family:var(--sans);font-weight:600;color:var(--ink-soft);
  font-size:.7rem;letter-spacing:.04em}
.nav-links{display:flex;align-items:center;gap:6px;list-style:none;margin:0;padding:0}
.nav-links a{color:var(--ink);font-weight:600;font-size:.93rem;padding:.5em .7em;border-radius:8px}
.nav-links a:hover{background:var(--cream-2);text-decoration:none}
.nav-links a.active{color:var(--clay)}
.nav-cta{margin-left:4px}
.menu-toggle{display:none;background:none;border:0;cursor:pointer;padding:8px}
.menu-toggle span{display:block;width:24px;height:2.5px;background:var(--ink);margin:5px 0;border-radius:2px;transition:.2s}

/* theme toggle */
.nav-theme{display:flex;align-items:center}
.theme-toggle{width:40px;height:40px;border-radius:50%;background:var(--cream-2);border:1px solid var(--line);
  color:var(--ink);cursor:pointer;display:grid;place-items:center;padding:0;transition:background .15s,transform .15s}
.theme-toggle:hover{transform:translateY(-2px);background:var(--gold-soft);color:#3a2412}
.theme-toggle svg{width:20px;height:20px;fill:none;stroke:currentColor;stroke-width:2;stroke-linecap:round;stroke-linejoin:round}
.theme-toggle .icon-sun{display:none}
.theme-toggle .icon-moon{display:block;fill:currentColor;stroke:none}
[data-theme="dark"] .theme-toggle .icon-moon{display:none}
[data-theme="dark"] .theme-toggle .icon-sun{display:block}

/* ---------- hero ---------- */
.hero{position:relative;background:var(--grad-brown);color:#fff;overflow:hidden;isolation:isolate}
.hero-track{position:absolute;top:0;left:0;bottom:0;display:flex;width:600%;z-index:0;animation:heroSlide 32s infinite;will-change:transform}
.hero-slide{flex:0 0 16.6667%;width:16.6667%;height:100%;object-fit:cover;object-position:center}
@keyframes heroSlide{
  0%,14%{transform:translateX(0)}
  19%,33%{transform:translateX(-16.6667%)}
  38%,52%{transform:translateX(-33.3333%)}
  57%,71%{transform:translateX(-50%)}
  76%,90%{transform:translateX(-66.6667%)}
  95%,100%{transform:translateX(-83.3333%)}
}
@media (prefers-reduced-motion:reduce){.hero-track{animation:none}}
.hero-shade{position:absolute;inset:0;z-index:1;background:linear-gradient(95deg,rgba(38,22,10,.95) 0%,rgba(46,26,12,.82) 38%,rgba(46,26,12,.5) 68%,rgba(46,26,12,.22) 100%)}
.hero-inner{position:relative;z-index:2;max-width:var(--maxw);margin:0 auto;padding:104px 22px 118px}
.hero-inner h1{font-size:clamp(2.6rem,6vw,4.4rem);max-width:15ch;text-shadow:0 2px 20px rgba(0,0,0,.35);margin-bottom:.35em}
.hero-inner .lead{max-width:620px;text-shadow:0 1px 12px rgba(0,0,0,.3)}
.hero-inner .eyebrow{text-shadow:0 1px 10px rgba(0,0,0,.4)}
@media(max-width:680px){.hero-shade{background:linear-gradient(180deg,rgba(38,22,10,.78) 0%,rgba(46,26,12,.86) 100%)}.hero-inner{padding:72px 22px 84px}}
.hero-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:40px;align-items:center;
  max-width:var(--maxw);margin:0 auto;padding:64px 22px 72px}
.hero h1{color:#fff}
.hero .lead{color:rgba(255,255,255,.9)}
.hero-art{border-radius:22px;overflow:hidden;box-shadow:0 22px 60px rgba(0,0,0,.3);border:5px solid rgba(255,255,255,.15)}
.hero-art img{width:100%;height:100%;object-fit:cover}
.hero-cta{display:flex;flex-wrap:wrap;gap:14px;margin-top:26px}
.hero-stats{display:flex;gap:28px;margin-top:34px;flex-wrap:wrap}
.hero-stats div{min-width:90px}
.hero-stats b{font-family:var(--serif);font-size:1.9rem;display:block;color:var(--gold-soft)}
.hero-stats span{font-size:.85rem;color:rgba(255,255,255,.8)}
.hero::after{content:"";position:absolute;left:0;right:0;bottom:-1px;height:60px;
  background:radial-gradient(120% 100% at 50% 0,transparent 60%,var(--cream) 61%)}

/* ---------- sections ---------- */
section{padding:64px 0}
.section-alt{background:var(--cream-2)}
.section-teal{background:var(--grad-green);color:#fff}
.section-teal h2,.section-teal h3{color:#fff}
.section-clay{background:var(--grad-orange);color:#fff}
.section-clay h2,.section-clay p{color:#fff}
.section-brown{background:var(--grad-brown);color:#fff}
.section-brown h2,.section-brown h3,.section-brown p{color:#fff}
.narrow{max-width:760px;margin:0 auto}

/* ---------- cards / grids ---------- */
.grid{display:grid;gap:26px}
.g-3{grid-template-columns:repeat(3,1fr)}
.g-2{grid-template-columns:repeat(2,1fr)}
.g-4{grid-template-columns:repeat(4,1fr)}
.card{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);padding:30px;
  box-shadow:var(--shadow-sm);transition:transform .18s ease,box-shadow .18s ease}
.card:hover{transform:translateY(-4px);box-shadow:var(--shadow)}
.card .ico{width:58px;height:58px;border-radius:14px;display:grid;place-items:center;margin-bottom:16px;
  background:var(--cream-2)}
.card .ico svg{width:30px;height:30px}
.card h3{margin-bottom:.4em}
.card p{color:var(--ink-soft);margin:0}

/* impact stat band */
.stats-band{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;text-align:center}
.stat b{font-family:var(--serif);font-size:clamp(2rem,4vw,2.8rem);color:var(--gold);display:block;line-height:1}
.stat span{font-size:.92rem;color:var(--ink-soft)}
.section-teal .stat span{color:rgba(255,255,255,.82)}
.section-teal .stat b{color:var(--gold-soft)}

/* story cards */
.story{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;
  box-shadow:var(--shadow-sm);display:flex;flex-direction:column}
.story .portrait{aspect-ratio:4/3;width:100%}
.story .body{padding:24px}
.story .body h3{margin-bottom:.2em}
.story .tag{display:inline-block;font-size:.75rem;font-weight:700;letter-spacing:.06em;text-transform:uppercase;
  color:var(--tag-ink);background:var(--tag-bg);padding:.25em .7em;border-radius:999px;margin-bottom:.7em}
.story blockquote{margin:0 0 1em;font-family:var(--serif);font-style:italic;font-size:1.05rem;color:var(--ink)}

/* steps */
.steps{counter-reset:step;display:grid;gap:22px}
.step{display:flex;gap:18px;align-items:flex-start;background:var(--surface);border:1px solid var(--line);
  border-radius:var(--radius);padding:24px;box-shadow:var(--shadow-sm)}
.step .num{flex:none;width:46px;height:46px;border-radius:50%;background:var(--clay);color:#fff;
  font-family:var(--serif);font-weight:700;font-size:1.3rem;display:grid;place-items:center}
.step h3{margin:.1em 0 .3em}
.step p{margin:0;color:var(--ink-soft)}

/* sponsorship cost breakdown */
.breakdown{display:grid;gap:14px}
.bd-row{display:flex;align-items:center;gap:14px;background:var(--surface);border:1px solid var(--line);
  border-radius:14px;padding:14px 18px}
.bd-row .ico{width:42px;height:42px;border-radius:10px;background:var(--cream-2);display:grid;place-items:center;flex:none}
.bd-row .ico svg{width:24px;height:24px}
.bd-row b{font-family:var(--serif)}
.bd-row .amt{margin-left:auto;font-weight:700;color:var(--clay)}

/* CTA band */
.cta-band{text-align:center}
.cta-band .btn{margin:8px}

/* price card */
.price-card{background:var(--surface);border:2px solid var(--gold);border-radius:24px;padding:38px;text-align:center;
  box-shadow:var(--shadow);max-width:420px;margin:0 auto}
.price-card .amount{font-family:var(--serif);font-size:3.4rem;color:var(--clay);line-height:1}
.price-card .amount span{font-size:1.1rem;color:var(--ink-soft);font-family:var(--sans)}
.price-card ul{list-style:none;padding:0;margin:18px 0;text-align:left}
.price-card li{padding:.45em 0 .45em 30px;position:relative;border-bottom:1px dashed var(--line)}
.price-card li:before{content:"";position:absolute;left:0;top:.85em;width:16px;height:9px;
  border-left:3px solid var(--teal);border-bottom:3px solid var(--teal);transform:rotate(-45deg)}

/* donate options */
.donate-tier{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);padding:26px;text-align:center;
  box-shadow:var(--shadow-sm)}
.donate-tier .amt{font-family:var(--serif);font-size:2.2rem;color:var(--clay)}
.donate-tier.featured{border:2px solid var(--clay);position:relative}
.donate-tier.featured:before{content:"Most impact";position:absolute;top:-13px;left:50%;transform:translateX(-50%);
  background:var(--clay);color:#fff;font-size:.7rem;font-weight:700;letter-spacing:.06em;text-transform:uppercase;
  padding:.3em .9em;border-radius:999px}

.note{background:var(--note-bg);border:1px solid var(--note-border);border-radius:14px;padding:18px 20px;font-size:.95rem;color:var(--ink-soft)}
.callout{background:var(--cream-2);border-left:5px solid var(--clay);border-radius:0 12px 12px 0;padding:20px 24px;margin:24px 0}

/* about / founder */
.founder{display:grid;grid-template-columns:280px 1fr;gap:36px;align-items:center}
.founder .photo{border-radius:20px;overflow:hidden;box-shadow:var(--shadow);background:var(--teal)}
.founder .photo img{width:100%;height:100%;object-fit:cover;display:block}
.commit{display:grid;gap:16px}
.commit li{list-style:none;background:var(--surface);color:var(--ink);border:1px solid var(--line);border-radius:14px;padding:18px 20px;
  display:flex;gap:14px}
.commit li .chk{flex:none;width:30px;height:30px;border-radius:50%;background:var(--teal);color:#fff;
  display:grid;place-items:center;font-weight:700}
.commit ul{padding:0;margin:0}

/* contact */
.contact-grid{display:grid;grid-template-columns:1fr 1fr;gap:36px}
.contact-card{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);padding:28px;box-shadow:var(--shadow-sm)}
.field{margin-bottom:16px}
.field label{display:block;font-weight:600;font-size:.9rem;margin-bottom:6px}
.field input,.field textarea{width:100%;padding:12px 14px;border:1px solid var(--line);border-radius:10px;
  font-family:inherit;font-size:1rem;background:var(--cream);color:var(--ink)}
.field textarea{min-height:120px;resize:vertical}

/* footer */
.site-footer{background:#46301A;color:#ece1d3;padding:54px 0 26px;margin-top:10px}
[data-theme="dark"] .site-footer{background:#140E08;border-top:1px solid var(--line)}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr;gap:36px}
.site-footer h4{color:#fff;font-size:1.05rem}
.site-footer a{color:#d8e2c4}
.site-footer a:hover{color:#fff}
.footer-links{list-style:none;padding:0;margin:0;line-height:2}
.social{display:flex;gap:12px;margin-top:14px}
.social a{width:40px;height:40px;border-radius:50%;background:rgba(255,255,255,.12);display:grid;place-items:center}
.social a:hover{background:var(--clay)}
.social svg{width:20px;height:20px;fill:#fff}
.footer-bottom{border-top:1px solid rgba(255,255,255,.16);margin-top:30px;padding-top:18px;
  display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;font-size:.85rem;color:#bcc7a6}

/* page hero (interior) */
.page-hero{background:var(--grad-brown);color:#fff;padding:56px 0 64px;position:relative}
.page-hero h1{color:#fff;margin-bottom:.2em}