:root{
  --bg:#05060a;
  --glass:rgba(255,255,255,0.06);
  --border:rgba(255,255,255,0.12);
  --text:#fff;
  --muted:#a9b0c0;
  --accent:#007aff;
}

*{
  margin:0;
  padding:0;
  box-sizing:border-box;
  font-family:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto;
}

body{
  background:var(--bg);
  color:var(--text);
  overflow-x:hidden;
}

/* ===== BACKGROUND ===== */
.bg{
  position:fixed;
  inset:0;
  z-index:0;
  background:
    radial-gradient(circle at 20% 20%, rgba(0,122,255,0.25), transparent 40%),
    radial-gradient(circle at 80% 30%, rgba(168,85,247,0.25), transparent 40%),
    radial-gradient(circle at 50% 80%, rgba(255,64,129,0.15), transparent 40%);
  filter:blur(80px);
}

/* ================= NAVBAR UPGRADE ================= */

.navbar{
  position:fixed;
  top:0;
  width:100%;
  display:flex;
  justify-content:space-between;
  align-items:center;
  padding:12px 20px;
  backdrop-filter:blur(20px);
  background:rgba(0,0,0,0.55);
  border-bottom:1px solid var(--border);
  z-index:1000;
}

/* LINKS (desktop) */
.nav-links{
  display:flex;
  gap:14px;
}

.nav-links a{
  color:var(--muted);
  text-decoration:none;
  transition:0.3s;
}

.nav-links a:hover{
  color:var(--accent);
}

/* HAMBURGER ICON */
.menu-toggle{
  display:none;
  font-size:26px;
  cursor:pointer;
  color:white;
}

/* ================= MOBILE DRAWER ================= */
@media (max-width:768px){

  .menu-toggle{
    display:block;
  }

  .nav-links{
    position:fixed;
    top:0;
    right:-100%;
    height:100vh;
    width:260px;
    flex-direction:column;
    background:rgba(10,10,15,0.95);
    backdrop-filter:blur(25px);
    padding:80px 20px;
    gap:18px;
    transition:0.35s ease;
    border-left:1px solid var(--border);
  }

  .nav-links.open{
    right:0;
  }

  .nav-links a{
    font-size:1.1rem;
  }
}

/* ===== HERO ===== */
.hero{
  height:100vh;
  display:flex;
  align-items:center;
  justify-content:center;
  text-align:center;
  padding:20px;
  position:relative;
  z-index:2;
}

.hero-content{max-width:800px;}

.hero h1{
  font-size:4rem;
  font-weight:700;
  background:linear-gradient(90deg,#fff,#a5b4fc);
  -webkit-background-clip:text;
  -webkit-text-fill-color:transparent;
}

.subtitle{
  margin-top:12px;
  color:var(--muted);
  line-height:1.6;
}

.hero-actions{
  margin-top:20px;
  display:flex;
  gap:12px;
  justify-content:center;
  flex-wrap:wrap;
}

.btn{
  padding:10px 16px;
  border-radius:999px;
  border:1px solid var(--border);
  background:rgba(255,255,255,0.06);
  color:#fff;
  text-decoration:none;
  transition:0.3s;
}

.btn:hover{
  transform:translateY(-2px);
  border-color:var(--accent);
}

/* ===== SECTIONS ===== */
section{
  padding:30px 20px;
  max-width:1000px;
  margin:auto;
  position:relative;
  z-index:2;
}

h2{
  margin-bottom:12px;
}

.card{
  background:var(--glass);
  border:1px solid var(--border);
  border-radius:14px;
  padding:20px;
  margin-bottom:15px;
}
.card{
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: 14px;
  padding: 20px;
  margin-bottom: 15px;

  backdrop-filter: blur(18px);
  -webkit-backdrop-filter: blur(18px);

  position: relative;
  transform-style: preserve-3d;
  perspective: 1000px;

  transition: transform 0.35s ease, box-shadow 0.35s ease, border-color 0.35s ease;
  will-change: transform;
}

/* 3D hover effect */
.card:hover{
  border-color: rgba(0, 122, 255, 0.7);

  transform:
    perspective(1000px)
    rotateX(8deg)
    rotateY(-8deg)
    translateY(-10px)
    scale(1.03);

  box-shadow:
    0 25px 60px rgba(0,0,0,0.5),
    inset 0 0 15px rgba(255,255,255,0.06);
}

/* shine layer */
.card::before{
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(
    120deg,
    transparent 20%,
    rgba(255,255,255,0.12),
    transparent 60%
  );
  transform: translateX(-120%) skewX(-20deg);
  transition: transform 0.6s ease;
  pointer-events: none;
}

.card:hover::before{
  transform: translateX(120%) skewX(-20deg);
}

/* subtle depth for inner content */
.card > *{
  transform: translateZ(20px);
}
/* ===== TAGS ===== */
.tag{
  display:inline-block;
  padding:6px 10px;
  border-radius:999px;
  border:1px solid var(--border);
  margin:4px;
  font-size:0.8rem;
}

/* ===== CONTACT LINKS ===== */
a{
  color:#fff;
  text-decoration:underline;
}

/* ===== AI BUTTON (RIGHT SIDE FIXED) ===== */
.ai-btn{
  position:fixed;
  bottom:20px;
  right:20px;
  width:52px;
  height:52px;
  border-radius:50%;

  background:rgba(255,255,255,0.08);
  border:1px solid rgba(255,255,255,0.15);
  backdrop-filter:blur(20px);

  display:flex;
  align-items:center;
  justify-content:center;

  color:#fff;
  font-weight:600;
  cursor:pointer;
  z-index:9999;

  transition:0.3s ease;
}

.ai-btn:hover{
  transform:scale(1.08);
  border-color:rgba(255,255,255,0.3);
}

/* ===== AI BOX ===== */
.ai-box{
  position:fixed;
  bottom:85px;
  right:20px;
  width:320px;

  background:rgba(10,10,15,0.75);
  border:1px solid rgba(255,255,255,0.12);
  backdrop-filter:blur(22px);

  border-radius:16px;
  padding:10px;
  display:none;
  z-index:9999;

  box-shadow:0 20px 50px rgba(0,0,0,0.5);
}

.chat-log{
  height:200px;
  overflow:auto;
  font-size:0.85rem;
  margin-bottom:10px;
  color:#a9b0c0;
  display:flex;
  flex-direction:column;
  gap:8px;
}

.msg{
  padding:8px 10px;
  border-radius:10px;
  max-width:90%;
}

.user{
  align-self:flex-end;
  background:#007aff;
  color:#fff;
}

.bot{
  align-self:flex-start;
  background:rgba(255,255,255,0.08);
}

.ai-box input{
  width:100%;
  padding:10px;
  border:none;
  border-radius:8px;
  background:#111;
  color:#fff;
}