/* =========================================================
   YUVA BBN Global 1-2-1 Conclave — Site Stylesheet
   Palette: Navy #1a2a52 / Gold #e0a530 / Slate text on navy
   ========================================================= */

:root{
  --navy-deep:   #16213e;
  --navy:        #1a2a52;
  --navy-light:  #24345f;
  --navy-border: #33436e;
  --gold:        #e0a530;
  --gold-soft:   #f4c95d;
  --ink:         #16213e;
  --ink-soft:    #55617a;
  --paper:       #f7f8fb;
  --white:       #ffffff;
  --line:        #e6e9f2;
  --success:     #2e8b57;
  --error:       #c0392b;

  --font-display: 'Poppins', 'Segoe UI', system-ui, sans-serif;
  --font-body:    'Inter', 'Segoe UI', system-ui, sans-serif;

  --radius-sm: 8px;
  --radius-md: 14px;
  --radius-lg: 20px;
  --shadow-card: 0 8px 30px rgba(22,33,62,0.08);
  --shadow-pop:  0 14px 40px rgba(22,33,62,0.16);
}

*{ box-sizing:border-box; }
html{ scroll-behavior:smooth; }
body{
  margin:0;
  font-family:var(--font-body);
  color:var(--ink);
  background:var(--paper);
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4{ font-family:var(--font-display); margin:0; color:var(--navy); }
p{ margin:0; line-height:1.6; }
a{ color:inherit; text-decoration:none; }
img{ max-width:100%; display:block; }
button{ font-family:inherit; cursor:pointer; }

.container{
  max-width:1180px;
  margin:0 auto;
  padding:0 24px;
}

/* ---------- Skip link / focus ---------- */
.skip-link{
  position:absolute; left:-999px; top:0; background:var(--gold); color:var(--navy);
  padding:10px 16px; z-index:999; border-radius:0 0 8px 0; font-weight:600;
}
.skip-link:focus{ left:0; }
:focus-visible{ outline:3px solid var(--gold-soft); outline-offset:2px; }

/* ---------- Navbar ---------- */
.navbar{
  position:sticky; top:0; z-index:100;
  background:var(--white);
  border-bottom:1px solid var(--line);
}
.navbar .container{
  display:flex; align-items:center; justify-content:space-between;
  padding-top:14px; padding-bottom:14px;
}
.brand{ display:flex; align-items:center; gap:10px; }
.brand img{ height:40px; width:auto; }
.brand-text{ font-weight:700; font-size:0.95rem; color:var(--navy); line-height:1.1; }
.nav-links{ display:flex; align-items:center; gap:14px; }
.btn{
  display:inline-flex; align-items:center; justify-content:center; gap:8px;
  padding:11px 22px; border-radius:999px; font-weight:600; font-size:0.95rem;
  border:1px solid transparent; transition:transform .15s ease, box-shadow .15s ease, background .15s ease;
  white-space:nowrap;
}
.btn:hover{ transform:translateY(-1px); }
.btn-primary{ background:var(--navy); color:var(--white); }
.btn-primary:hover{ background:var(--navy-light); box-shadow:var(--shadow-card); }
.btn-gold{ background:var(--gold); color:var(--navy); }
.btn-gold:hover{ background:var(--gold-soft); box-shadow:0 10px 26px rgba(224,165,48,0.35); }
.btn-outline{ background:var(--paper); color:var(--navy); border-color:var(--line); }
.btn-outline:hover{ background:var(--white); border-color:var(--navy-border); }
.btn-block{ width:100%; }
.btn:disabled{ opacity:.55; cursor:not-allowed; transform:none; }

/* ---------- Hero ---------- */
.hero{
  background:linear-gradient(160deg, var(--navy) 0%, var(--navy-deep) 100%);
  position:relative; overflow:hidden;
  padding:88px 0 76px;
}
.hero::after{
  content:""; position:absolute; right:-120px; top:-120px;
  width:420px; height:420px; border-radius:50%;
  background:radial-gradient(circle, rgba(224,165,48,0.14), transparent 70%);
}
.hero .container{ position:relative; z-index:1; text-align:center; }
.eyebrow{
  display:inline-block; padding:7px 18px; border-radius:999px;
  background:rgba(224,165,48,0.14); border:1px solid rgba(224,165,48,0.4);
  color:var(--gold-soft); font-size:0.8rem; font-weight:600; letter-spacing:.03em;
  margin-bottom:22px;
}
.hero h1{
  color:var(--white); font-size:clamp(2.2rem, 5vw, 3.4rem); font-weight:700;
  letter-spacing:-0.01em; margin-bottom:14px;
}
.hero .sub-gold{ color:var(--gold); font-size:clamp(1.2rem, 2.6vw, 1.6rem); font-weight:600; margin-bottom:8px; }
.hero .sub-muted{ color:#aab3c9; font-size:1.05rem; margin-bottom:34px; }

.info-grid{
  display:grid; grid-template-columns:repeat(2, 1fr); gap:14px; max-width:760px; margin:0 auto;
}
@media(min-width:640px){ .info-grid{ grid-template-columns:repeat(2, 1fr); } }
.info-card{
  display:flex; gap:12px; align-items:flex-start; text-align:left;
  background:rgba(255,255,255,0.05); border:1px solid var(--navy-border);
  border-radius:var(--radius-md); padding:16px 18px;
}
.info-card .icon{
  flex-shrink:0; width:34px; height:34px; border-radius:9px;
  background:rgba(224,165,48,0.15); display:flex; align-items:center; justify-content:center;
  color:var(--gold);
}
.info-card strong{ display:block; color:var(--white); font-size:0.95rem; font-weight:600; }
.info-card span{ display:block; color:#9aa4bc; font-size:0.82rem; margin-top:2px; }

.hero-cta{ margin-top:36px; }

/* ---------- Stats strip ---------- */
.stats{
  background:var(--white); border-bottom:1px solid var(--line);
  padding:40px 0;
}
.stats-grid{
  display:grid; grid-template-columns:repeat(2,1fr); gap:28px; text-align:center;
}
@media(min-width:768px){ .stats-grid{ grid-template-columns:repeat(4,1fr); } }
.stat-num{ font-size:2.1rem; font-weight:700; color:var(--navy); font-family:var(--font-display); }
.stat-label{ font-size:0.85rem; color:var(--ink-soft); margin-top:4px; }

/* ---------- Section shell ---------- */
.section{ padding:76px 0; }
.section-head{ text-align:center; max-width:680px; margin:0 auto 44px; }
.section-eyebrow{
  display:inline-block; font-size:0.78rem; font-weight:700; letter-spacing:.08em;
  text-transform:uppercase; color:var(--ink-soft); margin-bottom:10px;
}
.section-head h2{ font-size:clamp(1.6rem, 3.4vw, 2.2rem); }
.section-head p{ color:var(--ink-soft); margin-top:12px; font-size:1.02rem; }

/* ---------- About layout ---------- */
.about-grid{
  display:grid; grid-template-columns:1fr; gap:34px; align-items:start;
}
@media(min-width:900px){ .about-grid{ grid-template-columns:1.5fr 1fr; } }
.about-copy p{ color:var(--ink-soft); margin-bottom:16px; }
.about-copy strong{ color:var(--navy); }

.mission-card{
  background:var(--navy); border-radius:var(--radius-lg); padding:28px;
  color:#cdd4e6;
}
.mission-card h3{ color:var(--white); display:flex; align-items:center; gap:10px; font-size:1.1rem; margin-bottom:12px; }
.mission-card p{ font-size:0.95rem; line-height:1.65; margin-bottom:18px; }
.mission-divider{ border-top:1px solid var(--navy-border); padding-top:16px; margin-top:4px; }
.mission-label{ font-size:0.72rem; letter-spacing:.08em; text-transform:uppercase; color:#8b96b3; margin-bottom:10px; }
.mission-detail{ display:flex; gap:10px; align-items:flex-start; font-size:0.88rem; margin-bottom:9px; color:#dfe4f0; }
.mission-detail .ic{ color:var(--gold); flex-shrink:0; }

/* ---------- Why attend cards ---------- */
.why-grid{
  display:grid; grid-template-columns:1fr; gap:18px; margin-top:44px;
}
@media(min-width:700px){ .why-grid{ grid-template-columns:1fr 1fr; } }
.why-card{
  background:var(--white); border:1px solid var(--line); border-radius:var(--radius-md);
  padding:22px; display:flex; gap:16px; box-shadow:var(--shadow-card);
}
.why-card .icon{
  flex-shrink:0; width:42px; height:42px; border-radius:10px;
  background:#eef1fa; display:flex; align-items:center; justify-content:center; color:var(--navy);
}
.why-card h4{ font-size:1.02rem; margin-bottom:6px; }
.why-card p{ color:var(--ink-soft); font-size:0.9rem; }

/* ---------- Registration form ---------- */
.reg-section{ background:var(--paper); }
.reg-shell{
  max-width:600px; margin:0 auto;
  background:var(--white); border:1px solid var(--line);
  border-radius:var(--radius-lg); box-shadow:var(--shadow-pop); overflow:hidden;
}
.reg-header{ padding:26px 30px; border-bottom:1px solid var(--line); }
.reg-header h2{ font-size:1.35rem; }
.reg-header p{ color:var(--ink-soft); font-size:0.88rem; margin-top:4px; }
.reg-body{ padding:26px 30px 30px; }

.field{ margin-bottom:20px; }
.field label{ display:block; font-weight:600; font-size:0.9rem; margin-bottom:7px; color:var(--navy); }
.field label .req{ color:var(--error); }
.field label .mr{ font-weight:400; color:var(--ink-soft); }
.field input[type=text],
.field input[type=tel],
.field input[type=email],
.field textarea,
.field select{
  width:100%; padding:12px 14px; border:1px solid #d7dbe8; border-radius:var(--radius-sm);
  font-size:0.95rem; font-family:inherit; color:var(--ink); background:var(--white);
  transition:border-color .15s ease, box-shadow .15s ease;
}
.field input:focus, .field textarea:focus, .field select:focus{
  border-color:var(--gold); box-shadow:0 0 0 3px rgba(224,165,48,0.18); outline:none;
}
.field .hint{ font-size:0.78rem; color:var(--ink-soft); margin-top:6px; }
.field .counter{ float:right; font-weight:400; color:var(--ink-soft); }
.field .error-msg{ font-size:0.78rem; color:var(--error); margin-top:6px; display:none; }
.field.invalid input, .field.invalid textarea{ border-color:var(--error); }
.field.invalid .error-msg{ display:block; }

.phone-input{ display:flex; }
.phone-prefix{
  display:flex; align-items:center; padding:0 12px; border:1px solid #d7dbe8; border-right:0;
  border-radius:var(--radius-sm) 0 0 var(--radius-sm); background:#f3f4f8; color:var(--ink-soft); font-size:0.9rem;
}
.phone-input input{ border-radius:0 var(--radius-sm) var(--radius-sm) 0; }

/* Payment block */
.pay-box{
  background:var(--paper); border:1px dashed #cdd3e6; border-radius:var(--radius-md);
  padding:20px; text-align:center; margin-bottom:22px;
}
.pay-box img.qr{ width:170px; height:170px; object-fit:contain; margin:0 auto 12px; border-radius:8px; background:var(--white); padding:8px; border:1px solid var(--line); }
.pay-box .upi{ font-weight:700; color:var(--navy); font-size:0.95rem; }
.pay-box .note{ font-size:0.82rem; color:var(--ink-soft); margin-top:8px; }

.file-drop{
  border:2px dashed #cdd3e6; border-radius:var(--radius-sm); padding:22px; text-align:center;
  cursor:pointer; transition:border-color .15s ease, background .15s ease; background:var(--paper);
}
.file-drop:hover, .file-drop.dragover{ border-color:var(--gold); background:#fdf6e6; }
.file-drop input{ display:none; }
.file-drop .fd-icon{ color:var(--ink-soft); margin-bottom:8px; }
.file-drop .fd-text{ font-size:0.88rem; color:var(--ink-soft); }
.file-drop .fd-filename{ font-weight:600; color:var(--navy); margin-top:8px; font-size:0.88rem; word-break:break-all; }
.file-preview{ margin-top:12px; }
.file-preview img{ max-height:140px; border-radius:8px; margin:0 auto; border:1px solid var(--line); }

.submit-note{ text-align:center; font-size:0.78rem; color:var(--ink-soft); margin-top:14px; }

.form-msg{
  border-radius:var(--radius-sm); padding:13px 16px; font-size:0.9rem; margin-bottom:18px; display:none;
}
.form-msg.show{ display:block; }
.form-msg.success{ background:#e8f6ee; color:var(--success); border:1px solid #bfe6cf; }
.form-msg.error{ background:#fbeaea; color:var(--error); border:1px solid #f0c3c0; }

.spinner{
  width:16px; height:16px; border:2px solid rgba(255,255,255,0.4); border-top-color:#fff;
  border-radius:50%; animation:spin .7s linear infinite; display:none;
}
.spinner.show{ display:inline-block; }
@keyframes spin{ to{ transform:rotate(360deg); } }

.closed-box{
  text-align:center; padding:40px 20px; color:var(--ink-soft);
}
.closed-box .icon{ font-size:2.4rem; margin-bottom:10px; }

/* Success screen */
.success-screen{ text-align:center; padding:16px 4px 6px; }
.success-screen .check{
  width:64px; height:64px; border-radius:50%; background:#e8f6ee; color:var(--success);
  display:flex; align-items:center; justify-content:center; margin:0 auto 18px; font-size:1.8rem;
}
.success-screen h3{ font-size:1.2rem; margin-bottom:8px; }
.success-screen p{ color:var(--ink-soft); font-size:0.92rem; margin-bottom:6px; }

/* ---------- Footer ---------- */
.site-footer{
  background:var(--navy-deep); color:#9aa4bc; padding:36px 0; text-align:center; font-size:0.85rem;
}
.site-footer a{ color:var(--gold-soft); }
.wa-float{
  position:fixed; bottom:22px; right:22px; z-index:200;
  width:56px; height:56px; border-radius:50%; background:#25D366; color:#fff;
  display:flex; align-items:center; justify-content:center; box-shadow:0 8px 22px rgba(0,0,0,0.25);
}
.wa-float:hover{ transform:scale(1.06); }

@media(max-width:640px){
  .nav-links .btn-outline{ display:none; }
  .section{ padding:56px 0; }
  .hero{ padding:64px 0 52px; }
}