/* Aether Stream — Dark Slate / Violet / Cyan Tech */
:root {
  --slate: #0f1419;
  --slate-mid: #1a2332;
  --slate-light: #243044;
  --violet: #7c3aed;
  --violet-glow: #a78bfa;
  --cyan: #06b6d4;
  --cyan-bright: #22d3ee;
  --text: #e2e8f0;
  --muted: #94a3b8;
  --font-display: 'Space Grotesk', system-ui, sans-serif;
  --font-mono: 'JetBrains Mono', monospace;
  --sidebar: 260px;
}
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{font-family:var(--font-display);color:var(--text);background:var(--slate);line-height:1.65;display:flex;min-height:100vh}
a{color:var(--cyan);text-decoration:none;transition:.2s}
a:hover{color:var(--cyan-bright)}

/* Sidebar layout */
.sidebar{width:var(--sidebar);background:var(--slate-mid);border-right:1px solid var(--slate-light);position:fixed;top:0;left:0;bottom:0;display:flex;flex-direction:column;padding:28px 20px;z-index:200}
.sidebar-brand{font-size:1.15rem;font-weight:700;margin-bottom:8px;background:linear-gradient(90deg,var(--cyan),var(--violet));-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}
.sidebar-tag{font-family:var(--font-mono);font-size:.7rem;color:var(--muted);margin-bottom:32px}
.sidebar-nav{display:flex;flex-direction:column;gap:4px;flex:1}
.sidebar-nav a{padding:10px 14px;border-radius:8px;color:var(--muted);font-size:.9rem;font-weight:500}
.sidebar-nav a:hover,.sidebar-nav a.active{background:var(--slate-light);color:var(--cyan-bright)}
.sidebar-contact{margin-top:auto;font-size:.8rem;color:var(--muted)}
.sidebar-contact a{display:block;margin-top:6px;font-size:.85rem}
.menu-toggle{display:none;position:fixed;top:16px;left:16px;z-index:300;background:var(--slate-mid);border:1px solid var(--slate-light);color:var(--text);padding:10px 14px;border-radius:8px;cursor:pointer;font-size:1.2rem}

.main{margin-left:var(--sidebar);flex:1;min-width:0}
.topbar{background:var(--slate-mid);border-bottom:1px solid var(--slate-light);padding:10px 32px;font-size:.85rem;color:var(--muted);display:flex;justify-content:space-between;flex-wrap:wrap;gap:8px}
.topbar a{color:var(--cyan)}

/* Mesh gradient hero */
.hero-mesh{position:relative;padding:80px 48px 100px;overflow:hidden}
.hero-mesh::before{content:'';position:absolute;inset:0;background:
  radial-gradient(ellipse 80% 60% at 20% 40%, rgba(124,58,237,.35), transparent),
  radial-gradient(ellipse 60% 50% at 80% 20%, rgba(6,182,212,.25), transparent),
  radial-gradient(ellipse 50% 40% at 60% 80%, rgba(124,58,237,.2), transparent);
  pointer-events:none}
.hero-mesh::after{content:'';position:absolute;inset:0;background:url("data:image/svg+xml,%3Csvg width='60' height='60' xmlns='http://www.w3.org/2000/svg'%3E%3Cpath d='M0 0h1v1H0z' fill='%23ffffff' fill-opacity='.03'/%3E%3C/svg%3E");pointer-events:none}
.hero-inner{position:relative;max-width:720px}
.hero-badge{display:inline-flex;align-items:center;gap:8px;font-family:var(--font-mono);font-size:.75rem;color:var(--cyan);background:rgba(6,182,212,.1);border:1px solid rgba(6,182,212,.25);padding:6px 14px;border-radius:20px;margin-bottom:24px}
.hero-badge::before{content:'';width:6px;height:6px;background:var(--cyan);border-radius:50%;animation:pulse 2s infinite}
@keyframes pulse{0%,100%{opacity:1}50%{opacity:.4}}
.hero-mesh h1{font-size:clamp(2.2rem,4vw,3.2rem);font-weight:700;line-height:1.15;margin-bottom:20px}
.hero-mesh h1 span{background:linear-gradient(90deg,var(--cyan-bright),var(--violet-glow));-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}
.hero-mesh p{color:var(--muted);font-size:1.1rem;margin-bottom:32px;max-width:540px}
.hero-actions{display:flex;gap:14px;flex-wrap:wrap}
.btn{padding:12px 28px;border-radius:8px;font-weight:600;font-size:.9rem;border:none;cursor:pointer;font-family:inherit;transition:.2s}
.btn-cyan{background:linear-gradient(135deg,var(--cyan),var(--violet));color:var(--slate)}
.btn-cyan:hover{transform:translateY(-2px);box-shadow:0 8px 32px rgba(6,182,212,.3)}
.btn-ghost{background:transparent;border:1px solid var(--slate-light);color:var(--text)}
.btn-ghost:hover{border-color:var(--cyan);color:var(--cyan)}

section{padding:64px 48px}
.section-tag{font-family:var(--font-mono);font-size:.75rem;color:var(--violet-glow);text-transform:uppercase;letter-spacing:.1em;margin-bottom:10px}
.section-title{font-size:clamp(1.6rem,2.5vw,2.2rem);font-weight:700;margin-bottom:12px}
.section-desc{color:var(--muted);max-width:520px;margin-bottom:40px}

.svc-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
.svc-card{background:var(--slate-mid);border:1px solid var(--slate-light);border-radius:12px;padding:28px;transition:.3s}
.svc-card:hover{border-color:var(--violet);transform:translateY(-4px);box-shadow:0 12px 40px rgba(124,58,237,.15)}
.svc-icon{font-family:var(--font-mono);color:var(--cyan);font-size:.85rem;margin-bottom:14px}
.svc-card h3{font-size:1.05rem;margin-bottom:8px}
.svc-card p{color:var(--muted);font-size:.88rem}

.about-panel{background:var(--slate-mid);border:1px solid var(--slate-light);border-radius:16px;padding:48px;display:grid;grid-template-columns:1fr 1fr;gap:40px}
.about-panel p{color:var(--muted);margin-bottom:12px}

.metrics{display:grid;grid-template-columns:repeat(4,1fr);gap:16px;margin-top:48px}
.metric{background:var(--slate-light);border-radius:10px;padding:24px;text-align:center}
.metric strong{font-size:2rem;display:block;background:linear-gradient(90deg,var(--cyan),var(--violet-glow));-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}
.metric span{font-size:.8rem;color:var(--muted)}

.contact-panel{background:var(--slate-mid);border-radius:16px;padding:40px;display:grid;grid-template-columns:1fr 1.2fr;gap:40px;border:1px solid var(--slate-light)}
.form-group{margin-bottom:16px}
.form-group label{display:block;font-size:.85rem;color:var(--muted);margin-bottom:6px}
.form-group input,.form-group textarea{width:100%;padding:12px 14px;background:var(--slate);border:1px solid var(--slate-light);border-radius:8px;color:var(--text);font-family:inherit;font-size:.95rem}
.form-group input:focus,.form-group textarea:focus{outline:none;border-color:var(--cyan)}
.form-group textarea{min-height:120px;resize:vertical}
.form-check{display:flex;gap:10px;font-size:.85rem;color:var(--muted);align-items:flex-start}
.form-msg{margin-top:12px;padding:12px;border-radius:8px;font-size:.9rem;display:none}
.form-msg.show{display:block}
.form-msg.ok{background:rgba(6,182,212,.15);color:var(--cyan-bright)}
.form-msg.err{background:rgba(239,68,68,.15);color:#f87171}

.footer{margin-left:var(--sidebar);background:var(--slate-mid);border-top:1px solid var(--slate-light);padding:32px 48px;display:flex;justify-content:space-between;flex-wrap:wrap;gap:16px;font-size:.85rem;color:var(--muted)}
.footer a{color:var(--muted);margin-right:16px}
.footer a:hover{color:var(--cyan)}

.page-head{padding:48px;border-bottom:1px solid var(--slate-light)}
.page-head h1{font-size:2rem}
.page-body{padding:48px;max-width:760px}
.page-body h2{font-size:1.2rem;margin:28px 0 10px;color:var(--violet-glow)}
.page-body p{color:var(--muted);margin-bottom:10px}

.reveal{opacity:0;transform:translateY(20px);transition:.6s}
.reveal.visible{opacity:1;transform:none}

@media(max-width:1024px){
  .svc-grid{grid-template-columns:1fr 1fr}
  .about-panel,.contact-panel{grid-template-columns:1fr}
  .metrics{grid-template-columns:repeat(2,1fr)}
}
@media(max-width:768px){
  .menu-toggle{display:block}
  .sidebar{transform:translateX(-100%);transition:.3s}
  .sidebar.open{transform:none}
  .main,.footer{margin-left:0}
  section{padding:48px 24px}
  .hero-mesh{padding:60px 24px 80px}
  .svc-grid,.metrics{grid-template-columns:1fr}
}