/* =====================================================================
   Congress Seva Dal – Young Brigade Mobilisation Portal
   Palette (Indian flag):
     saffron #FF9933 · white #FFFFFF · green #138808 · navy/chakra #000080
   ===================================================================== */
:root{
  --saffron:#FF9933;
  --green:#138808;
  --navy:#000080;
  --navy-deep:#05052e;
  --ink:#141433;
  --paper:#ffffff;
  --paper-2:#f6f7fb;
  --line:#e3e5ee;
  --muted:#5b5f77;
  --radius:14px;
  --shadow:0 10px 30px rgba(0,0,64,.10);
  --wrap:1140px;
  --serif:"Merriweather",Georgia,"Times New Roman",serif;
  --sans:"Inter",-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Arial,sans-serif;
}

*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;font-family:var(--sans);color:var(--ink);
  background:var(--paper-2);line-height:1.65;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block}
a{color:var(--navy);text-decoration:none}
.wrap{max-width:var(--wrap);margin:0 auto;padding:0 20px}

/* ---- tricolor signature band ---- */
.tricolor{height:6px;display:flex}
.tricolor span{flex:1}
.tricolor span:nth-child(1){background:var(--saffron)}
.tricolor span:nth-child(2){background:#fff}
.tricolor span:nth-child(3){background:var(--green)}

/* ---------- Header / Nav ---------- */
.site-header{position:sticky;top:0;z-index:50;background:rgba(255,255,255,.96);
  backdrop-filter:blur(8px);border-bottom:1px solid var(--line)}
.nav{display:flex;align-items:center;gap:18px;padding:12px 0}
.brand{display:flex;align-items:center;gap:12px;margin-right:auto}
.brand img{width:52px;height:52px}
.brand b{font-family:var(--serif);color:var(--navy);font-size:1.05rem;line-height:1.15;display:block}
.brand small{color:var(--muted);font-size:.72rem;letter-spacing:.02em}
.nav a.link{color:var(--ink);font-weight:600;font-size:.93rem;padding:8px 6px;border-radius:8px}
.nav a.link:hover{color:var(--navy);background:var(--paper-2)}
.nav a.link.ext{color:var(--green);font-weight:700}
.nav a.link.ext:hover{color:#0e6606;background:#eaf6ea}
.nav .cta{background:var(--navy);color:#fff;padding:10px 18px;border-radius:999px;font-weight:700}
.nav .cta:hover{background:#000063}
.menu-btn{display:none;background:none;border:1px solid var(--line);border-radius:8px;padding:8px 10px;font-size:1.2rem}

/* ---------- Hero + Carousel ---------- */
.hero{background:linear-gradient(180deg,var(--navy-deep),#0a0a45);color:#fff;overflow:hidden}
.hero-inner{display:grid;grid-template-columns:1.05fr 1fr;gap:36px;align-items:center;
  padding:54px 20px 60px}
.hero h1{font-family:var(--serif);font-size:2.5rem;line-height:1.14;margin:.2em 0 .35em}
.hero .eyebrow{display:inline-flex;align-items:center;gap:8px;color:#ffd39a;
  font-weight:700;letter-spacing:.04em;font-size:.82rem;text-transform:uppercase}
.hero p.lead{color:#d7d9f2;font-size:1.05rem;max-width:52ch}
.hero .btns{display:flex;gap:12px;flex-wrap:wrap;margin-top:22px}
.btn{display:inline-block;padding:13px 22px;border-radius:999px;font-weight:700;border:2px solid transparent}
.btn-saffron{background:var(--saffron);color:#3a1e00}
.btn-saffron:hover{background:#ffab5c}
.btn-ghost{border-color:rgba(255,255,255,.4);color:#fff}
.btn-ghost:hover{border-color:#fff;background:rgba(255,255,255,.08)}

/* carousel (auto scroll right -> left) */
.carousel{position:relative;border-radius:var(--radius);overflow:hidden;
  box-shadow:var(--shadow);border:3px solid rgba(255,255,255,.15)}
.carousel-track{display:flex;width:100%;transition:transform .8s cubic-bezier(.6,.02,.2,1)}
.carousel-slide{min-width:100%;position:relative}
.carousel-slide img{width:100%;height:340px;object-fit:cover}
.carousel-dots{position:absolute;bottom:12px;left:0;right:0;display:flex;
  gap:8px;justify-content:center}
.carousel-dots button{width:10px;height:10px;border-radius:50%;border:0;
  background:rgba(255,255,255,.5);cursor:pointer}
.carousel-dots button.active{background:var(--saffron);width:26px;border-radius:6px}
.carousel-arrow{position:absolute;top:50%;transform:translateY(-50%);
  background:rgba(0,0,64,.55);color:#fff;border:0;width:40px;height:40px;
  border-radius:50%;font-size:1.2rem;cursor:pointer}
.carousel-arrow:hover{background:var(--navy)}
.carousel-arrow.prev{left:12px}
.carousel-arrow.next{right:12px}

/* ---------- Generic section ---------- */
section{padding:64px 0}
.section-head{max-width:720px;margin-bottom:34px}
.kicker{color:var(--green);font-weight:800;font-size:.82rem;letter-spacing:.06em;
  text-transform:uppercase;display:flex;align-items:center;gap:10px}
.kicker::before{content:"";width:26px;height:3px;background:var(--saffron);border-radius:2px}
h2.title{font-family:var(--serif);font-size:2rem;color:var(--navy);margin:.35em 0 .2em;line-height:1.2}
.lead-muted{color:var(--muted);font-size:1.05rem}

/* leadership cards */
.leaders{display:grid;grid-template-columns:repeat(2,1fr);gap:22px}
.leader{background:#fff;border:1px solid var(--line);border-radius:var(--radius);
  padding:26px;display:flex;gap:18px;align-items:center;box-shadow:var(--shadow)}
.leader .avatar{width:76px;height:76px;border-radius:50%;flex:none;
  background:conic-gradient(var(--saffron),#fff,var(--green),var(--navy),var(--saffron));
  display:grid;place-items:center;color:var(--navy);font-family:var(--serif);
  font-weight:700;font-size:1.5rem;border:3px solid #fff;box-shadow:0 0 0 2px var(--line)}
.leader h3{margin:0;font-family:var(--serif);color:var(--navy);font-size:1.15rem}
.leader span{color:var(--green);font-weight:700;font-size:.85rem}
.leader p{margin:.3em 0 0;color:var(--muted);font-size:.9rem}

/* document blocks: proposal / letter / agenda */
.doc{background:#fff;border:1px solid var(--line);border-radius:var(--radius);
  box-shadow:var(--shadow);overflow:hidden}
.doc-head{display:flex;align-items:center;gap:14px;padding:20px 26px;
  background:linear-gradient(90deg,var(--navy),#0a0a55);color:#fff}
.doc-head img{width:44px;height:44px}
.doc-head h3{margin:0;font-family:var(--serif);font-size:1.2rem}
.doc-body{padding:26px 30px}
.doc-body p{margin:0 0 1em}
.doc-body .meta{color:var(--muted);font-size:.9rem;border-left:3px solid var(--saffron);
  padding-left:12px;margin-bottom:18px}
.sign-off{margin-top:26px;padding-top:18px;border-top:1px dashed var(--line);
  display:flex;justify-content:space-between;flex-wrap:wrap;gap:16px}
.sign-off div b{display:block;font-family:var(--serif);color:var(--navy)}
.sign-off div span{color:var(--muted);font-size:.85rem}

/* agenda list */
.agenda{list-style:none;margin:0;padding:0;counter-reset:a}
.agenda li{counter-increment:a;display:flex;gap:16px;padding:16px 0;
  border-bottom:1px solid var(--line)}
.agenda li:last-child{border-bottom:0}
.agenda li::before{content:counter(a,decimal-leading-zero);flex:none;
  width:40px;height:40px;border-radius:10px;background:var(--paper-2);
  color:var(--navy);font-weight:800;display:grid;place-items:center;
  border:1px solid var(--line)}
.agenda li b{color:var(--navy);font-family:var(--serif)}
.agenda li p{margin:.2em 0 0;color:var(--muted);font-size:.94rem}

/* two-column layout helper */
.split{display:grid;grid-template-columns:1fr 1fr;gap:26px;align-items:start}

/* gallery grid */
.gallery-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(220px,1fr));
  gap:16px}
.gallery-item{margin:0;background:#fff;border:1px solid var(--line);
  border-radius:12px;overflow:hidden;box-shadow:var(--shadow)}
.gallery-item img,.gallery-item video{width:100%;height:190px;object-fit:cover;
  display:block;background:#000}
.gallery-item figcaption{padding:10px 12px;font-size:.85rem}
.gallery-item figcaption b{display:block;color:var(--navy);font-family:var(--serif)}
.gallery-item figcaption span{color:var(--muted)}

/* news list */
.news-list{display:grid;grid-template-columns:repeat(auto-fill,minmax(300px,1fr));
  gap:18px}
.news-card{background:#fff;border:1px solid var(--line);border-radius:12px;
  padding:22px;box-shadow:var(--shadow);border-top:4px solid var(--saffron)}
.news-card time{color:var(--green);font-weight:700;font-size:.8rem;
  text-transform:uppercase;letter-spacing:.04em}
.news-card h3{font-family:var(--serif);color:var(--navy);margin:.35em 0 .4em;
  font-size:1.15rem}
.news-card p{color:var(--muted);margin:0 0 .6em}
.news-card a{font-weight:700}

/* register form */
.form-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);
  box-shadow:var(--shadow);padding:30px}
.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.field{display:flex;flex-direction:column;gap:6px}
.field.full{grid-column:1/-1}
.field label{font-weight:600;font-size:.88rem;color:var(--ink)}
.field input,.field select,.field textarea{padding:12px 14px;border:1px solid var(--line);
  border-radius:10px;font:inherit;background:var(--paper-2)}
.field input:focus,.field select:focus,.field textarea:focus{outline:2px solid var(--navy);
  background:#fff}
.field textarea{min-height:96px;resize:vertical}
.form-submit{margin-top:8px}
.alert{padding:14px 18px;border-radius:10px;margin-bottom:18px;font-weight:600}
.alert.ok{background:#e7f6e7;color:#0f6b0f;border:1px solid #b6e3b6}
.alert.err{background:#fdeaea;color:#a11;border:1px solid #f2c2c2}
.info-side{background:var(--navy-deep);color:#e8e9ff;border-radius:var(--radius);
  padding:28px;box-shadow:var(--shadow)}
.info-side h3{font-family:var(--serif);color:#fff;margin-top:0}
.info-side ul{padding-left:18px;margin:0}
.info-side li{margin:.5em 0;color:#c9cbf2}

/* ---------- Footer ---------- */
.footer{background:var(--navy-deep);color:#c9cbf2;padding:44px 0 20px}
.footer .cols{display:grid;grid-template-columns:1.4fr 1fr 1fr;gap:26px}
.footer h4{color:#fff;font-family:var(--serif);margin:0 0 12px}
.footer a{color:#c9cbf2;display:block;padding:3px 0}
.footer a:hover{color:var(--saffron)}
.footer .brand-f{display:flex;gap:12px;align-items:center;margin-bottom:12px}
.footer .brand-f img{width:54px}
.footer-bottom{border-top:1px solid rgba(255,255,255,.12);margin-top:26px;
  padding-top:16px;font-size:.85rem;color:#9a9cd0;text-align:center}

/* ---------- Responsive ---------- */
@media (max-width:900px){
  .hero-inner{grid-template-columns:1fr;text-align:left}
  .split,.form-grid,.leaders,.footer .cols{grid-template-columns:1fr}
  .nav .links{display:none;position:absolute;top:100%;left:0;right:0;
    background:#fff;border-bottom:1px solid var(--line);flex-direction:column;
    padding:10px 20px;gap:4px}
  .nav .links.open{display:flex}
  .nav{position:relative}
  .menu-btn{display:inline-block}
  .hero h1{font-size:2rem}
}
@media (prefers-reduced-motion:reduce){
  *{scroll-behavior:auto}
  .carousel-track{transition:none}
}