/* ============================================================
   KEA SHARED DESIGN SYSTEM
   Karnataka Engineers Academy — AI Platform
   Competing with: Bengaluru Golf Club, Bowring Club, Chennaswamy Club
   ============================================================ */

@import url('https://fonts.googleapis.com/css2?family=Playfair+Display:ital,wght@0,400;0,600;0,700;1,400&family=Inter:wght@300;400;500;600&family=Cormorant+Garamond:ital,wght@0,300;0,400;1,300&display=swap');

:root {
  --navy:     #1B3A6B;
  --navy-dk:  #0d2247;
  --gold:     #C9A227;
  --gold-lt:  #E8C84A;
  --cream:    #F8F5EE;
  --white:    #FFFFFF;
  --dark:     #1A1A1A;
  --gray:     #6B7280;
  --light:    #F1EDE3;
  --border:   rgba(201,162,39,0.25);
  --shadow:   0 20px 60px rgba(27,58,107,0.12);
  --radius:   16px;
  --trans:    all 0.4s cubic-bezier(0.25,0.8,0.25,1);
}

*, *::before, *::after { box-sizing: border-box; margin:0; padding:0; }
html { scroll-behavior:smooth; font-size:16px; }
body { font-family:'Inter',sans-serif; background:var(--cream); color:var(--dark); overflow-x:hidden; }
img  { max-width:100%; display:block; }
a    { text-decoration:none; color:inherit; }

/* --- NAV --- */
nav {
  position:fixed; top:0; left:0; right:0; z-index:1000;
  padding:0 5%; display:flex; align-items:center;
  justify-content:space-between; height:80px; transition:var(--trans);
}
nav.scrolled {
  background:rgba(27,58,107,0.97); backdrop-filter:blur(20px);
  height:65px; box-shadow:0 4px 30px rgba(0,0,0,0.15);
}
nav.solid { background:var(--navy); height:72px; }

.nav-logo { display:flex; align-items:center; gap:14px; }
.nav-logo-icon {
  width:46px; height:46px;
  background:linear-gradient(135deg,var(--gold),var(--gold-lt));
  border-radius:50%; display:flex; align-items:center; justify-content:center;
  font-family:'Playfair Display',serif; font-weight:700; font-size:1.1rem;
  color:var(--navy); flex-shrink:0;
}
.nav-logo-text strong { display:block; font-family:'Playfair Display',serif; font-size:1.05rem; color:#fff; letter-spacing:1px; }
.nav-logo-text small  { font-size:0.65rem; color:var(--gold); letter-spacing:2px; text-transform:uppercase; }

.nav-links { display:flex; align-items:center; gap:30px; list-style:none; }
.nav-links a {
  font-size:0.8rem; font-weight:500; letter-spacing:1.5px;
  text-transform:uppercase; color:rgba(255,255,255,0.85); transition:var(--trans);
  position:relative;
}
.nav-links a::after { content:''; position:absolute; bottom:-4px; left:0; width:0; height:1.5px; background:var(--gold); transition:width 0.3s ease; }
.nav-links a:hover  { color:var(--gold); }
.nav-links a:hover::after { width:100%; }
.nav-links a.active { color:var(--gold); }
.nav-links a.active::after { width:100%; }

.nav-cta {
  background:linear-gradient(135deg,var(--gold),var(--gold-lt)) !important;
  color:var(--navy) !important; padding:10px 22px; border-radius:50px;
  font-weight:600 !important;
}
.nav-cta::after { display:none !important; }
.nav-cta:hover  { transform:translateY(-2px); box-shadow:0 8px 25px rgba(201,162,39,0.4); }

.nav-hamburger {
  display:none; flex-direction:column; gap:5px; cursor:pointer; padding:4px;
}
.nav-hamburger span { width:24px; height:2px; background:#fff; border-radius:2px; transition:var(--trans); }

.nav-mobile {
  display:none; position:fixed; inset:0; background:var(--navy);
  z-index:999; padding:100px 5% 40px; flex-direction:column; gap:8px;
}
.nav-mobile.open { display:flex; }
.nav-mobile a {
  font-size:1.4rem; font-family:'Playfair Display',serif;
  color:rgba(255,255,255,0.8); padding:12px 0;
  border-bottom:1px solid rgba(255,255,255,0.08); transition:var(--trans);
}
.nav-mobile a:hover { color:var(--gold); padding-left:10px; }

/* --- INNER PAGE HERO --- */
.page-hero {
  height:42vh; min-height:320px;
  background:linear-gradient(135deg, var(--navy) 0%, var(--navy-dk) 100%);
  display:flex; flex-direction:column;
  align-items:center; justify-content:center;
  text-align:center; padding:80px 5% 40px; position:relative; overflow:hidden;
}
.page-hero::before {
  content:''; position:absolute; inset:0;
  background:url("data:image/svg+xml,%3Csvg width='80' height='80' viewBox='0 0 80 80' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none'%3E%3Cg fill='%23C9A227' fill-opacity='0.05'%3E%3Cpath d='M0 0h40v40H0V0zm40 40h40v40H40V40zm0-40h2l-2 2V0zm0 4l4-4h2l-6 6V4zm0 4l8-8h2L40 10V8zm0 4L52 0h2L40 14v-2zm0 4L56 0h2L40 18v-2zm0 4L60 0h2L40 22v-2zm0 4L64 0h2L40 26v-2zm0 4L68 0h2L40 30v-2zm0 4L72 0h2L40 34v-2zm0 4L76 0h2l-2 2-34 34v-2zm4 4L80 0h2L44 42l-4-2zm4 4L80 4h2L48 46l-4-2zm4 4L80 8h2L52 50l-4-2zm4 4L80 12h2L56 54l-4-2zm4 4L80 16h2L60 58l-4-2zm4 4L80 20h2L64 62l-4-2zm4 4L80 24h2L68 66l-4-2zm4 4L80 28h2L72 70l-4-2zm4 4L80 32h2L76 74l-4-2zm4 4L80 36h2L80 40l-4 2-2-2zm-2 2L80 40v2l-2-2z'/%3E%3C/g%3E%3C/g%3E%3C/svg%3E");
}
.page-hero-tag {
  font-size:0.72rem; font-weight:600; letter-spacing:3px; text-transform:uppercase;
  color:var(--gold); margin-bottom:14px;
  display:inline-flex; align-items:center; gap:8px;
}
.page-hero-tag::before, .page-hero-tag::after { content:''; width:24px; height:1px; background:var(--gold); }
.page-hero h1 {
  font-family:'Playfair Display',serif; font-size:clamp(2.2rem,5vw,3.8rem);
  font-weight:700; color:#fff; position:relative; z-index:1;
}
.page-hero h1 em { font-style:italic; color:var(--gold-lt); }
.page-hero p {
  margin-top:14px; font-family:'Cormorant Garamond',serif;
  font-size:1.2rem; color:rgba(255,255,255,0.65); max-width:560px;
  position:relative; z-index:1;
}

/* --- SECTION COMMONS --- */
section { padding:90px 5%; }
.section-tag {
  display:inline-flex; align-items:center; gap:8px;
  font-size:0.72rem; font-weight:600; letter-spacing:3px;
  text-transform:uppercase; color:var(--gold); margin-bottom:14px;
}
.section-tag::before { content:''; width:28px; height:1.5px; background:var(--gold); }
.section-title {
  font-family:'Playfair Display',serif; font-size:clamp(1.8rem,3vw,2.8rem);
  font-weight:700; color:var(--navy); line-height:1.2;
}
.section-title em { font-style:italic; color:var(--gold); }
.section-sub { margin-top:14px; font-size:1rem; color:var(--gray); line-height:1.75; max-width:560px; }

/* --- BUTTONS --- */
.btn-primary {
  display:inline-flex; align-items:center; gap:8px;
  background:linear-gradient(135deg,var(--gold),var(--gold-lt));
  color:var(--navy); padding:14px 34px; border-radius:50px;
  font-weight:600; font-size:0.86rem; letter-spacing:1.5px;
  text-transform:uppercase; transition:var(--trans);
  box-shadow:0 8px 28px rgba(201,162,39,0.3); border:none; cursor:pointer;
}
.btn-primary:hover { transform:translateY(-3px); box-shadow:0 14px 38px rgba(201,162,39,0.5); }

.btn-ghost {
  display:inline-flex; align-items:center; gap:8px;
  background:transparent; color:var(--navy); padding:14px 34px;
  border-radius:50px; font-weight:600; font-size:0.86rem;
  letter-spacing:1.5px; text-transform:uppercase;
  border:2px solid var(--navy); transition:var(--trans); cursor:pointer;
}
.btn-ghost:hover { background:var(--navy); color:#fff; }

.btn-ghost-white {
  display:inline-flex; align-items:center; gap:8px;
  background:rgba(255,255,255,0.1); color:#fff; padding:14px 34px;
  border-radius:50px; font-weight:500; font-size:0.86rem;
  letter-spacing:1.5px; text-transform:uppercase;
  border:1.5px solid rgba(255,255,255,0.4);
  backdrop-filter:blur(8px); transition:var(--trans); cursor:pointer;
}
.btn-ghost-white:hover { background:rgba(255,255,255,0.2); transform:translateY(-2px); }

/* --- CARDS --- */
.card {
  background:#fff; border-radius:var(--radius);
  overflow:hidden; transition:var(--trans);
  box-shadow:0 2px 20px rgba(0,0,0,0.06);
}
.card:hover { transform:translateY(-7px); box-shadow:var(--shadow); }
.card-img { overflow:hidden; }
.card-img img { width:100%; object-fit:cover; transition:transform 0.6s ease; }
.card:hover .card-img img { transform:scale(1.07); }
.card-body { padding:24px; }

/* --- FOOTER --- */
footer {
  background:#0a1929; padding:60px 5% 28px;
}
.footer-top {
  display:grid; grid-template-columns:1.5fr 1fr 1fr 1fr;
  gap:48px; padding-bottom:44px;
  border-bottom:1px solid rgba(255,255,255,0.07);
}
.footer-brand p { margin-top:16px; font-size:0.85rem; color:rgba(255,255,255,0.4); line-height:1.75; max-width:280px; }
.footer-col h4 { font-size:0.7rem; font-weight:600; letter-spacing:2.5px; text-transform:uppercase; color:var(--gold); margin-bottom:18px; }
.footer-col ul { list-style:none; display:flex; flex-direction:column; gap:9px; }
.footer-col ul a { font-size:0.84rem; color:rgba(255,255,255,0.42); transition:color 0.3s; }
.footer-col ul a:hover { color:var(--gold); }
.footer-bottom { padding-top:24px; display:flex; justify-content:space-between; align-items:center; flex-wrap:wrap; gap:10px; }
.footer-bottom p, .footer-bottom span { font-size:0.78rem; color:rgba(255,255,255,0.25); }

/* --- KEVA CHATBOT --- */
#keva-btn {
  position:fixed; bottom:32px; right:32px; z-index:900;
  width:62px; height:62px; border-radius:50%;
  background:linear-gradient(135deg,var(--navy),#2a5298);
  border:2px solid var(--gold); cursor:pointer;
  display:flex; align-items:center; justify-content:center;
  box-shadow:0 8px 30px rgba(27,58,107,0.4);
  transition:var(--trans); animation:kevaPulse 3s ease-in-out infinite;
}
#keva-btn:hover { transform:scale(1.1); box-shadow:0 14px 40px rgba(201,162,39,0.4); }
@keyframes kevaPulse {
  0%,100% { box-shadow:0 8px 30px rgba(27,58,107,0.4),0 0 0 0 rgba(201,162,39,0.4); }
  50%      { box-shadow:0 8px 30px rgba(27,58,107,0.4),0 0 0 12px rgba(201,162,39,0); }
}
#keva-btn svg { width:28px; height:28px; fill:#fff; }
#keva-badge {
  position:absolute; top:-4px; right:-4px;
  width:18px; height:18px; background:var(--gold);
  border-radius:50%; font-size:0.6rem; font-weight:700;
  color:var(--navy); display:flex; align-items:center; justify-content:center;
}
#keva-panel {
  position:fixed; bottom:108px; right:32px; z-index:900;
  width:340px; background:#fff; border-radius:20px;
  box-shadow:0 24px 60px rgba(0,0,0,0.2);
  display:none; flex-direction:column; overflow:hidden;
  border:1px solid rgba(201,162,39,0.2);
}
#keva-panel.open { display:flex; animation:slideUp 0.3s ease; }
@keyframes slideUp { from { opacity:0; transform:translateY(20px); } to { opacity:1; transform:translateY(0); } }
.keva-head {
  background:linear-gradient(135deg,var(--navy),#2a5298);
  padding:18px 20px; display:flex; align-items:center; gap:12px;
}
.keva-avatar {
  width:42px; height:42px; border-radius:50%;
  background:linear-gradient(135deg,var(--gold),var(--gold-lt));
  display:flex; align-items:center; justify-content:center;
  font-family:'Playfair Display',serif; font-weight:700;
  font-size:1rem; color:var(--navy);
}
.keva-head-info strong { display:block; color:#fff; font-size:0.95rem; }
.keva-head-info small  { color:rgba(255,255,255,0.6); font-size:0.72rem; }
.keva-status { width:8px; height:8px; background:#4ade80; border-radius:50%; margin-left:auto; animation:blink 2s infinite; }
@keyframes blink { 0%,100%{opacity:1} 50%{opacity:0.3} }
.keva-msgs { padding:16px; height:220px; overflow-y:auto; display:flex; flex-direction:column; gap:10px; }
.keva-msg { max-width:82%; }
.keva-msg.bot { align-self:flex-start; }
.keva-msg.user { align-self:flex-end; }
.keva-msg-bubble {
  padding:10px 14px; border-radius:14px; font-size:0.84rem; line-height:1.5;
}
.keva-msg.bot  .keva-msg-bubble { background:var(--cream); color:var(--dark); border-radius:4px 14px 14px 14px; }
.keva-msg.user .keva-msg-bubble { background:var(--navy); color:#fff; border-radius:14px 4px 14px 14px; }
.keva-quick { padding:0 16px 12px; display:flex; flex-wrap:wrap; gap:6px; }
.keva-quick button {
  background:var(--cream); border:1px solid var(--border);
  border-radius:20px; padding:6px 12px; font-size:0.75rem;
  color:var(--navy); cursor:pointer; transition:var(--trans);
}
.keva-quick button:hover { background:var(--gold); color:var(--navy); border-color:var(--gold); }
.keva-input { padding:12px 16px; border-top:1px solid rgba(0,0,0,0.06); display:flex; gap:8px; }
.keva-input input {
  flex:1; border:1.5px solid #e5e7eb; border-radius:24px;
  padding:9px 16px; font-size:0.84rem; outline:none;
  transition:border-color 0.3s;
}
.keva-input input:focus { border-color:var(--gold); }
.keva-input button {
  width:38px; height:38px; border-radius:50%;
  background:linear-gradient(135deg,var(--gold),var(--gold-lt));
  border:none; cursor:pointer; display:flex;
  align-items:center; justify-content:center; flex-shrink:0;
}

/* --- WHATSAPP BUTTON --- */
#wa-btn {
  position:fixed; bottom:32px; right:108px; z-index:900;
  width:52px; height:52px; border-radius:50%;
  background:#25D366; display:flex; align-items:center;
  justify-content:center; box-shadow:0 6px 20px rgba(37,211,102,0.4);
  transition:var(--trans); cursor:pointer;
}
#wa-btn:hover { transform:scale(1.1); }
#wa-btn svg { width:26px; height:26px; fill:#fff; }

/* --- SCROLL TOP --- */
#scrollTop {
  position:fixed; bottom:32px; left:32px;
  width:46px; height:46px;
  background:linear-gradient(135deg,var(--gold),var(--gold-lt));
  color:var(--navy); border:none; border-radius:50%;
  font-size:1.1rem; cursor:pointer;
  display:flex; align-items:center; justify-content:center;
  box-shadow:0 6px 20px rgba(201,162,39,0.35);
  opacity:0; visibility:hidden; transition:var(--trans); z-index:500;
}
#scrollTop.visible { opacity:1; visibility:visible; }
#scrollTop:hover { transform:translateY(-3px); }

/* --- PRELOADER --- */
#preloader {
  position:fixed; inset:0; background:var(--navy); z-index:9999;
  display:flex; flex-direction:column; align-items:center;
  justify-content:center; gap:24px;
  transition:opacity 0.6s ease, visibility 0.6s ease;
}
#preloader.hidden { opacity:0; visibility:hidden; }
.pl-logo { font-family:'Playfair Display',serif; color:#fff; font-size:2rem; font-weight:700; letter-spacing:3px; animation:fadeUp 0.7s ease both; }
.pl-logo span { color:var(--gold); }
.pl-sub { font-size:0.7rem; color:rgba(255,255,255,0.5); letter-spacing:4px; text-transform:uppercase; animation:fadeUp 0.7s 0.15s ease both; }
.pl-bar { width:200px; height:2px; background:rgba(255,255,255,0.12); border-radius:2px; overflow:hidden; }
.pl-fill { height:100%; background:linear-gradient(90deg,var(--gold),var(--gold-lt)); width:0; animation:fillBar 2s ease forwards; }
@keyframes fillBar { to{width:100%} }
@keyframes fadeUp { from{opacity:0;transform:translateY(16px)} to{opacity:1;transform:translateY(0)} }

/* --- MARQUEE --- */
.marquee-strip { background:var(--navy); padding:16px 0; overflow:hidden; white-space:nowrap; }
.marquee-track  { display:inline-flex; animation:marquee 28s linear infinite; }
@keyframes marquee { from{transform:translateX(0)} to{transform:translateX(-50%)} }
.marquee-item { display:inline-flex; align-items:center; gap:12px; padding:0 32px; font-size:0.76rem; font-weight:600; letter-spacing:2.5px; text-transform:uppercase; color:rgba(255,255,255,0.6); }
.marquee-dot { color:var(--gold); }

/* --- RESPONSIVE --- */
@media(max-width:1100px){
  .footer-top { grid-template-columns:1fr 1fr; gap:36px; }
}
@media(max-width:900px){
  .nav-links { display:none; }
  .nav-hamburger { display:flex; }
}
@media(max-width:600px){
  section { padding:64px 5%; }
  #keva-panel { width:calc(100vw - 40px); right:20px; }
  #wa-btn { right:90px; bottom:28px; }
  #keva-btn { right:28px; bottom:28px; }
}