:root{
  --bg-top:#060912;
  --bg-mid:#0a0f1f;
  --navy-deep:#0d1430;
  --blue-glow-1:#1c3fb8;
  --blue-glow-2:#2e63e8;
  --blue-glow-3:#5b8cf2;
  --text-white:#f5f7fb;
  --text-dim:rgba(245,247,251,0.62);
  --text-faint:rgba(245,247,251,0.42);
  --nav-height:72px;
}

*{margin:0;padding:0;box-sizing:border-box;}

html,body{
  background:var(--bg-top);
  font-family:'Inter',sans-serif;
  color:var(--text-white);
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}

a{color:inherit;text-decoration:none;}
button{font-family:inherit;}

/* ===== NAVBAR ===== */
header.navbar{
  position:relative;
  z-index:50;
  display:flex;
  align-items:center;
  justify-content:space-between;
  height:var(--nav-height);
  padding:0 32px;
  background:rgba(5,8,16,0.55);
  backdrop-filter:blur(6px);
  border-bottom:1px solid rgba(255,255,255,0.06);
}

.logo-group{
  display:flex;
  align-items:center;
  gap:10px;
}

.logo-mark{
  width:34px;
  height:34px;
  flex-shrink:0;
}

.logo-text{
  font-family:'Plus Jakarta Sans',sans-serif;
  font-weight:800;
  font-size:22px;
  letter-spacing:-0.5px;
  color:var(--text-white);
}

.tagline{
  font-style:italic;
  font-weight:400;
  font-size:13px;
  color:var(--text-dim);
  margin-left:6px;
  white-space:nowrap;
}

nav.main-nav{
  display:flex;
  align-items:center;
  gap:34px;
}

.nav-item{
  display:flex;
  align-items:center;
  gap:5px;
  font-size:15px;
  font-weight:500;
  color:rgba(245,247,251,0.88);
  cursor:pointer;
  position:relative;
  padding:8px 2px;
  transition:color .15s ease;
}

.nav-item:hover{color:#ffffff;}

.nav-item svg{
  width:14px;
  height:14px;
  transition:transform .18s ease;
  opacity:0.75;
}

.nav-item.open svg{transform:rotate(180deg);}

.dropdown-panel{
  position:absolute;
  top:calc(100% + 14px);
  left:0;
  min-width:220px;
  background:#0c1226;
  border:1px solid rgba(255,255,255,0.08);
  border-radius:12px;
  padding:8px;
  box-shadow:0 18px 40px rgba(0,0,0,0.55);
  opacity:0;
  visibility:hidden;
  transform:translateY(-6px);
  transition:opacity .16s ease, transform .16s ease, visibility .16s ease;
}

.nav-item.open .dropdown-panel{
  opacity:1;
  visibility:visible;
  transform:translateY(0);
}

.dropdown-panel a{
  display:block;
  padding:10px 12px;
  font-size:14px;
  font-weight:500;
  color:rgba(245,247,251,0.82);
  border-radius:8px;
  cursor:pointer;
}

.dropdown-panel a:hover{
  background:rgba(255,255,255,0.06);
  color:#ffffff;
}

.icon-rail{
  display:flex;
  align-items:center;
  gap:18px;
}

.icon-btn{
  width:36px;
  height:36px;
  display:flex;
  align-items:center;
  justify-content:center;
  border-radius:8px;
  color:rgba(245,247,251,0.78);
  cursor:pointer;
  transition:background .15s ease, color .15s ease;
  border:none;
  background:transparent;
}

.icon-btn:hover{
  background:rgba(255,255,255,0.08);
  color:#ffffff;
}

.icon-btn svg{width:19px;height:19px;}

/* ===== HERO ===== */
.hero{
  position:relative;
  min-height:calc(100vh - var(--nav-height));
  display:flex;
  flex-direction:column;
  align-items:center;
  justify-content:center;
  text-align:center;
  padding:120px 24px 160px;
  overflow:hidden;
  background:
    radial-gradient(ellipse 1400px 700px at 50% 115%, var(--blue-glow-3) 0%, var(--blue-glow-2) 28%, var(--blue-glow-1) 48%, rgba(13,20,48,0.6) 68%, rgba(6,9,18,0) 85%),
    linear-gradient(to bottom, var(--bg-top) 0%, var(--bg-mid) 45%, var(--navy-deep) 100%);
}

.hero::before{
  content:"";
  position:absolute;
  inset:0;
  background:radial-gradient(ellipse 900px 420px at 50% 108%, rgba(255,255,255,0.18) 0%, rgba(255,255,255,0) 70%);
  pointer-events:none;
}

.hero h1{
  position:relative;
  z-index:2;
  font-family:'Plus Jakarta Sans',sans-serif;
  font-weight:800;
  letter-spacing:-1.5px;
  line-height:1.06;
  font-size:clamp(36px,6.4vw,92px);
  color:#ffffff;
  text-shadow:0 4px 30px rgba(0,0,0,0.25);
  max-width:1200px;
}

.cta-btn{
  position:relative;
  z-index:2;
  margin-top:56px;
  display:inline-flex;
  align-items:center;
  gap:10px;
  background:#ffffff;
  color:#0a0e1a;
  font-size:16px;
  font-weight:700;
  padding:18px 30px;
  border-radius:14px;
  border:none;
  cursor:pointer;
  box-shadow:0 12px 30px rgba(0,0,0,0.35);
  transition:transform .15s ease, box-shadow .15s ease;
}

.cta-btn:hover{
  transform:translateY(-2px);
  box-shadow:0 16px 36px rgba(0,0,0,0.45);
}

.cta-btn svg{width:20px;height:20px;}

/* ===== RESPONSIVE ===== */
@media (max-width:980px){
  nav.main-nav{display:none;}
  .tagline{display:none;}
}

@media (max-width:600px){
  header.navbar{padding:0 18px;}
  .icon-rail{gap:10px;}
  .hero{padding:90px 20px 120px;}
  .hero h1{letter-spacing:-0.5px;}
  .cta-btn{padding:16px 22px;font-size:14px;}
}

/* ===== OVERLAY BASE ===== */
.overlay{
  position:fixed;
  inset:0;
  z-index:200;
  display:flex;
  align-items:center;
  justify-content:center;
  opacity:0;
  visibility:hidden;
  transition:opacity .25s ease, visibility .25s ease;
}

.overlay.visible{
  opacity:1;
  visibility:visible;
}

/* ===== PRELOADER ===== */
#preloader{
  background:radial-gradient(ellipse 1200px 700px at 50% 100%, var(--blue-glow-2) 0%, var(--navy-deep) 55%, var(--bg-top) 100%);
  flex-direction:column;
  gap:26px;
}

.spinner{
  width:58px;
  height:58px;
  border-radius:50%;
  border:4px solid rgba(255,255,255,0.14);
  border-top-color:#ffffff;
  animation:spin .9s linear infinite;
}

@keyframes spin{
  to{transform:rotate(360deg);}
}

.preloader-text{
  font-size:15px;
  font-weight:500;
  color:var(--text-dim);
  letter-spacing:0.2px;
  transition:opacity .22s ease;
}

/* ===== MODAL ===== */
#modalOverlay{
  background:rgba(4,6,12,0.72);
  backdrop-filter:blur(4px);
  padding:24px;
}

.modal-card{
  position:relative;
  width:100%;
  max-width:440px;
  background:#0c1226;
  border:1px solid rgba(255,255,255,0.08);
  border-radius:20px;
  padding:40px 36px 36px;
  box-shadow:0 30px 70px rgba(0,0,0,0.55);
  transform:translateY(14px) scale(0.97);
  transition:transform .28s ease;
}

#modalOverlay.visible .modal-card{
  transform:translateY(0) scale(1);
}

.modal-close{
  position:absolute;
  top:18px;
  right:18px;
  width:32px;
  height:32px;
  display:flex;
  align-items:center;
  justify-content:center;
  border-radius:8px;
  background:transparent;
  border:none;
  color:var(--text-dim);
  cursor:pointer;
  transition:background .15s ease, color .15s ease;
}

.modal-close:hover{
  background:rgba(255,255,255,0.08);
  color:#ffffff;
}

.modal-close svg{width:18px;height:18px;}

.modal-logo-wrap{
  display:flex;
  align-items:center;
  gap:9px;
  margin-bottom:20px;
}

.modal-logo{
  width:32px;
  height:32px;
  flex-shrink:0;
}

.modal-logo-text{
  font-family:'Plus Jakarta Sans',sans-serif;
  font-weight:800;
  font-size:20px;
  letter-spacing:-0.5px;
  color:#ffffff;
}

.modal-title{
  font-family:'Plus Jakarta Sans',sans-serif;
  font-weight:800;
  font-size:28px;
  letter-spacing:-0.5px;
  color:#ffffff;
  margin-bottom:8px;
}

.modal-sub{
  font-size:14px;
  color:var(--text-dim);
  margin-bottom:28px;
}

.field-group{
  margin-bottom:18px;
}

.field-group label{
  display:block;
  font-size:13px;
  font-weight:600;
  color:var(--text-dim);
  margin-bottom:7px;
}

.field-group input,
.field-group textarea{
  width:100%;
  padding:12px 14px;
  border-radius:10px;
  border:1px solid rgba(255,255,255,0.12);
  background:rgba(255,255,255,0.04);
  color:#ffffff;
  font-size:14px;
  font-family:inherit;
  outline:none;
  transition:border-color .15s ease, background .15s ease;
}

.field-group input{height:46px;}

.field-group textarea{
  height:90px;
  resize:none;
  line-height:1.5;
}

.field-group input::placeholder,
.field-group textarea::placeholder{
  color:rgba(245,247,251,0.32);
}

.field-group input:focus,
.field-group textarea:focus{
  border-color:var(--blue-glow-3);
  background:rgba(255,255,255,0.06);
}

.modal-submit{
  width:100%;
  height:50px;
  margin-top:10px;
  background:#ffffff;
  color:#0a0e1a;
  font-size:15px;
  font-weight:700;
  border:none;
  border-radius:12px;
  cursor:pointer;
  display:flex;
  align-items:center;
  justify-content:center;
  gap:9px;
  transition:transform .15s ease, box-shadow .15s ease, background .2s ease, color .2s ease;
}

.modal-submit:hover:not(:disabled):not(.failed){
  transform:translateY(-1px);
  box-shadow:0 12px 26px rgba(0,0,0,0.4);
}

.modal-submit.loading{
  opacity:0.82;
  cursor:not-allowed;
}

.modal-submit.failed{
  background:#ef4444;
  color:#ffffff;
  cursor:default;
}

.btn-spinner{
  width:16px;
  height:16px;
  border-radius:50%;
  border:2px solid rgba(10,14,26,0.22);
  border-top-color:#0a0e1a;
  animation:spin .7s linear infinite;
  flex-shrink:0;
}

/* ===== ENHANCED PRELOADER ===== */
.preloader-content{
  display:flex;
  flex-direction:column;
  align-items:center;
  gap:20px;
  width:300px;
  text-align:center;
}

.preloader-logo{
  width:52px;
  height:52px;
  margin-bottom:4px;
}

.preloader-bar-wrap{
  width:100%;
  height:3px;
  background:rgba(255,255,255,0.1);
  border-radius:99px;
  overflow:hidden;
}

.preloader-bar{
  height:100%;
  width:0%;
  background:linear-gradient(90deg, var(--blue-glow-2), var(--blue-glow-3), #a5c4ff);
  border-radius:99px;
  transition:width .55s cubic-bezier(.4,0,.2,1);
}

.preloader-step{
  font-size:12px;
  color:var(--text-faint);
  letter-spacing:0.4px;
}