/* ===== Base ===== */
*{
  box-sizing:border-box;
}

html,body{
  min-height:100%;
}

body{
  margin:0;
  font-family:'Inter','Segoe UI',system-ui,sans-serif;
  color:var(--text);
  background:linear-gradient(135deg,#030304,#0b0b10);
}

:root{
  --radius:18px;
  --shadow:0 12px 40px rgba(0,0,0,.35);
}

/* ===== Cyber Dark Purple Theme ===== */
.dark-theme{
  --glass:rgba(22,15,35,.42);
  --text:#f2f3f7;
  --muted:#bcb2cc;
  --accent:#b56cff;
  --glow:rgba(181,108,255,.25);
  background:linear-gradient(135deg,#030304,#0d0815);
}

/* ===== Background ===== */
.bg-wrap{
  position:fixed;
  inset:0;
  overflow:hidden;
  z-index:-2;
}

.soft-noise{
  position:absolute;
  inset:0;
  opacity:.05;
  pointer-events:none;
  background-image:url('data:image/svg+xml;utf8,<svg xmlns="http://www.w3.org/2000/svg" width="160" height="160"><filter id="n"><feTurbulence type="fractalNoise" baseFrequency="0.8" numOctaves="2" stitchTiles="stitch"/></filter><rect width="100%" height="100%" filter="url(%23n)" opacity="0.4"/></svg>');
}

.blob{
  position:absolute;
  border-radius:50%;
  filter:blur(40px);
  opacity:.35;
  pointer-events:none;
}

.blob.b1{
  width:520px;
  height:520px;
  left:-120px;
  top:-120px;
  background:radial-gradient(circle at 30% 30%,#b56cff,transparent 60%);
}

.blob.b2{
  width:420px;
  height:420px;
  right:-80px;
  top:20%;
  background:radial-gradient(circle at 60% 40%,#ffffff22,transparent 60%);
}

.blob.b3{
  width:460px;
  height:460px;
  left:20%;
  bottom:-120px;
  background:radial-gradient(circle at 40% 60%,#b56cff55,transparent 60%);
}

/* ===== Glass ===== */
.glass-card{
  background:var(--glass);
  backdrop-filter:blur(20px) saturate(150%);
  -webkit-backdrop-filter:blur(20px) saturate(150%);
  border:1px solid rgba(255,255,255,.18);
  border-radius:var(--radius);
  box-shadow:var(--shadow);
}

/* ===== Header ===== */
.glass-header{
  position:fixed;
  top:14px;
  left:50%;
  width:calc(100% - 28px);
  max-width:1100px;
  margin:0;
  padding:14px 20px;
  display:flex;
  align-items:center;
  gap:14px;
  transform:translateX(-50%);
  z-index:1000;
  transition:opacity .25s ease,visibility .25s ease;
}

.glass-header.header-hidden{
  opacity:0;
  visibility:hidden;
  pointer-events:none;
}

.logo{
  font-weight:800;
  font-size:1.3rem;
  letter-spacing:.3px;
  color:var(--accent);
  text-shadow:0 0 20px var(--glow);
}

.glass-header nav{
  position:absolute;
  left:50%;
  transform:translateX(-50%);
}

nav ul{
  list-style:none;
  display:flex;
  gap:18px;
  margin:0;
  padding:0;
  white-space:nowrap;
}

nav a{
  text-decoration:none;
  color:var(--accent);
  font-weight:700;
  opacity:.95;
  padding:10px 14px;
  border-radius:12px;
  position:relative;
}

nav a:hover{
  color:#fff;
  background:var(--accent);
  box-shadow:0 0 0 999px rgba(255,255,255,.08) inset;
}

/* ===== Hero ===== */
.hero{
  max-width:1100px;
  margin:24px auto;
  padding:48px 28px;
  text-align:center;
}

.hero h1{
  font-size:clamp(2.2rem,4vw,3.6rem);
  margin:0 0 10px;
  color:var(--accent);
  text-shadow:0 0 24px var(--glow);
}

.hero p{
  color:var(--muted);
  margin:0 auto 22px;
  max-width:720px;
  font-size:1.05rem;
}

.cta-row{
  display:flex;
  gap:12px;
  justify-content:center;
}

.btn{
  display:inline-block;
  border-radius:14px;
  padding:12px 18px;
  text-decoration:none;
}

.btn.primary{
  background:var(--accent);
  color:#fff;
  box-shadow:0 8px 30px rgba(181,108,255,.22);
}

.btn.ghost{
  border:1px solid rgba(255,255,255,.25);
  color:var(--accent);
}

/* ===== Sections ===== */
.content-section{
  max-width:900px;
  margin:18px auto;
  padding:22px;
}

.section-header{
  display:flex;
  justify-content:space-between;
  align-items:center;
  gap:12px;
}

.section-header h2{
  margin:0;
  color:var(--accent);
}

.minimize-btn{
  background:none;
  border:none;
  font-size:1.2rem;
  color:var(--text);
  cursor:pointer;
  border-radius:10px;
  padding:6px 10px;
}

.section-body{
  overflow:hidden;
  transition:max-height .25s ease,opacity .2s ease;
  margin-top:10px;
}

.glass-footer{
  max-width:1100px;
  min-height:66px;
  margin:24px auto;
  padding:16px;
  text-align:center;
  display:flex;
  align-items:center;
  justify-content:center;
}

.glass-footer p{
  margin:0;
}

/* ===== No Body Hover Motion ===== */
.content-section:hover{
  transform:none;
}

.btn:hover{
  transform:none;
}

.minimize-btn:hover{
  transform:none;
}

/* ===== Ripple ===== */
.ripple{
  position:relative;
  overflow:hidden;
}

.ripple::after{
  content:"";
  position:absolute;
  border-radius:50%;
  transform:scale(0);
  opacity:.45;
  pointer-events:none;
  background:radial-gradient(closest-side,#fff,transparent);
}

.ripple.active::after{
  animation:ripple .6s ease-out;
}

@keyframes ripple{
  to{
    transform:scale(12);
    opacity:0;
  }
}

/* ===== Responsive ===== */
@media(max-width:900px){
  .glass-header{
    flex-wrap:wrap;
    justify-content:center;
  }

  .glass-header nav{
    position:static;
    transform:none;
  }

  nav ul{
    flex-wrap:wrap;
    justify-content:center;
    gap:6px;
  }

  .logo{
    width:100%;
    text-align:center;
  }
}

@media(max-width:600px){
  .hero{
    margin:18px 12px;
    padding:36px 18px;
  }

  .content-section{
    margin:18px 12px;
    padding:18px;
  }

  .glass-footer{
    margin:18px 12px;
  }

  nav a{
    padding:8px;
    font-size:.85rem;
  }
}