* { margin:0; padding:0; box-sizing:border-box; }
.slide-body { font-family:'Inter',sans-serif; background:#0a0a1a; color:#fff; overflow:hidden; height:100vh; width:100vw; position:absolute; top:0; left:0; z-index:9999; }
.slide { display:none; flex-direction:column; justify-content:center; align-items:center; height:100vh; padding:60px 80px; position:relative; animation:fadeIn .5s ease; width: 100%; }
.slide.active { display:flex; }
@keyframes fadeIn { from { opacity:0; transform:translateY(20px); } to { opacity:1; transform:translateY(0); } }

/* Navigation */
.nav { position:fixed; bottom:30px; left:50%; transform:translateX(-50%); display:flex; gap:12px; z-index:10000; background:rgba(255,255,255,.08); backdrop-filter:blur(20px); padding:12px 24px; border-radius:50px; border:1px solid rgba(255,255,255,.1); }
.nav button, .nav a.btn-close-slide { display:flex; align-items:center; justify-content:center; background:none; border:2px solid rgba(255,255,255,.3); color:#fff; width:42px; height:42px; border-radius:50%; cursor:pointer; font-size:18px; transition:.3s; text-decoration:none; }
.nav button:hover, .nav a.btn-close-slide:hover { background:rgba(255,255,255,.15); border-color:#6366f1; }
.slide-counter { position:fixed; top:30px; right:40px; font-size:14px; color:rgba(255,255,255,.5); z-index:10000; font-weight:600; }
.progress { position:fixed; top:0; left:0; height:3px; background:linear-gradient(90deg,#6366f1,#8b5cf6,#ec4899); transition:width .4s ease; z-index:10000; }

/* Typography */
.slide-body h1 { font-size:clamp(36px,5vw,64px); font-weight:900; line-height:1.1; margin-bottom:20px; color:#fff; }
.slide-body h2 { font-size:clamp(28px,3.5vw,48px); font-weight:700; margin-bottom:16px; color:#fff; }
.slide-body h3 { font-size:24px; font-weight:600; margin-bottom:12px; color:#fff; }
.slide-body p, .slide-body .desc { font-size:18px; line-height:1.7; color:rgba(255,255,255,.7); max-width:800px; }
.highlight { background:linear-gradient(135deg,#6366f1,#ec4899); -webkit-background-clip:text; -webkit-text-fill-color:transparent; }
.tag { display:inline-block; padding:6px 16px; border-radius:20px; font-size:13px; font-weight:600; background:rgba(99,102,241,.15); color:#a5b4fc; border:1px solid rgba(99,102,241,.3); margin-bottom:20px; }

/* Layouts */
.two-col { display:grid; grid-template-columns:1fr 1fr; gap:60px; width:100%; max-width:1200px; align-items:center; }
.three-col { display:grid; grid-template-columns:repeat(3,1fr); gap:30px; width:100%; max-width:1100px; margin-top:30px; }
.card { background:rgba(255,255,255,.05); border:1px solid rgba(255,255,255,.08); border-radius:16px; padding:30px; transition:.3s; }
.card:hover { transform:translateY(-4px); border-color:rgba(99,102,241,.4); background:rgba(255,255,255,.08); }
.card h3 { font-size:20px; margin-bottom:8px; }
.card p { font-size:15px; color:rgba(255,255,255,.6); }
.card .icon { font-size:36px; margin-bottom:16px; display:inline-block; }
.img-container { border-radius:16px; overflow:hidden; border:1px solid rgba(255,255,255,.1); box-shadow:0 20px 60px rgba(0,0,0,.5); }
.img-container img { width:100%; display:block; }
.center { text-align:center; display:flex; flex-direction:column; align-items:center; }

/* Feature list */
.feat-list { list-style:none; margin-top:20px; text-align:left; padding-left:0; }
.feat-list li { padding:10px 0; font-size:17px; color:rgba(255,255,255,.75); border-bottom:1px solid rgba(255,255,255,.06); display:flex; align-items:center; gap:12px; }
.feat-list li::before { content:'✦'; color:#6366f1; font-size:14px; }

/* Architecture boxes */
.arch-row { display:flex; gap:20px; flex-wrap:wrap; justify-content:center; margin-top:24px; }
.arch-box { background:linear-gradient(135deg,rgba(99,102,241,.12),rgba(139,92,246,.08)); border:1px solid rgba(99,102,241,.25); border-radius:12px; padding:20px 28px; text-align:center; min-width:180px; }
.arch-box .label { font-size:13px; color:rgba(255,255,255,.5); margin-top:6px; }
.arch-box .val { font-size:20px; font-weight:700; color:#a5b4fc; margin-bottom:0; }

/* Backgrounds */
.bg-gradient { background:radial-gradient(ellipse at 30% 50%,rgba(99,102,241,.15) 0%,transparent 60%),radial-gradient(ellipse at 70% 80%,rgba(236,72,153,.1) 0%,transparent 50%),#0a0a1a; }
.bg-dark { background:radial-gradient(ellipse at 50% 0%,rgba(30,30,60,.8) 0%,#0a0a1a 70%); }
.bg-blue { background:radial-gradient(ellipse at 20% 30%,rgba(59,130,246,.15) 0%,transparent 60%),#0a0a1a; }
.bg-purple { background:radial-gradient(ellipse at 80% 20%,rgba(139,92,246,.15) 0%,transparent 50%),#0a0a1a; }

.brand-row { margin-bottom:32px; text-align:center; }
.brand-row .brand-name { font-size:52px; font-weight:900; letter-spacing:-1px; background:linear-gradient(135deg,#a5b4fc,#c4b5fd,#f9a8d4); -webkit-background-clip:text; -webkit-text-fill-color:transparent; }
.brand-row .brand-sub { font-size:16px; color:rgba(255,255,255,.5); font-weight:400; letter-spacing:3px; text-transform:uppercase; margin-top:6px; }
.step-num { display:inline-flex; align-items:center; justify-content:center; width:36px; height:36px; border-radius:50%; background:linear-gradient(135deg,#6366f1,#8b5cf6); font-weight:700; font-size:15px; margin-right:12px; flex-shrink:0; }

@media (max-width: 768px) {
    .slide-body {
        overflow-y: auto;
        overflow-x: hidden;
        height: 100vh;
    }
    .slide {
        height: auto;
        min-height: 100vh;
        padding: 80px 20px 100px;
        justify-content: flex-start;
    }
    .two-col {
        grid-template-columns: 1fr;
        gap: 30px;
    }
    .three-col {
        grid-template-columns: 1fr;
        gap: 20px;
        margin-top: 20px;
    }
    .slide-counter {
        top: 20px;
        right: 20px;
    }
    .nav {
        bottom: 20px;
        padding: 8px 16px;
        gap: 8px;
    }
    .nav button, .nav a.btn-close-slide {
        width: 36px;
        height: 36px;
        font-size: 14px;
    }
    .slide-body h1 {
        font-size: 2rem;
    }
    .slide-body h2 {
        font-size: 1.5rem;
    }
    .slide-body h3 {
        font-size: 1.25rem;
    }
    .slide-body p, .slide-body .desc {
        font-size: 1rem;
    }
}