:root{--bg:#f7f7fb;--surface:#fff;--surface2:#f0f1f7;--text:#16172b;--muted:#76788d;--border:#e5e6ee;--purple:#6d5ef5;--cyan:#22d3ee;--shadow:0 18px 50px #2a246113;color-scheme:light}[data-mode=dark]{--bg:#0b0b14;--surface:#161622;--surface2:#20202f;--text:#f6f5ff;--muted:#aaaac3;--border:#303042;--shadow:0 20px 60px #0006;color-scheme:dark}*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;font-family:'Be Vietnam Pro',sans-serif;background:var(--bg);color:var(--text);line-height:1.7}button,input,select,textarea{font:inherit}button{cursor:pointer}a{color:inherit;text-decoration:none}[hidden]{display:none!important}.wrap{max-width:1240px;width:calc(100% - 44px);margin:auto}.topbar{position:sticky;top:0;z-index:40;background:color-mix(in srgb,var(--surface) 82%,transparent);border-bottom:1px solid var(--border);backdrop-filter:blur(18px)}.top-inner{display:flex;align-items:center;gap:30px;min-height:74px}.brand{font-size:17px;font-weight:700;display:flex;align-items:center;gap:9px;white-space:nowrap;background:none;border:0;color:var(--text);padding:0}.brand b{color:var(--purple)}.brand-icon{background:linear-gradient(140deg,#6d5ef5,#22d3ee);color:white;border-radius:11px;display:inline-grid;place-items:center;width:34px;height:34px;font-size:22px}.top-inner nav{display:flex;gap:23px;margin-left:auto;align-items:center}.top-inner nav button,.top-inner nav a{background:none;border:0;color:var(--muted);font-size:13px}.top-inner nav button:hover,.top-inner nav a:hover{color:var(--purple)}.icon-btn{border:1px solid var(--border);background:var(--surface);border-radius:11px;color:var(--text);min-width:36px;height:36px}.btn{border:1px solid var(--border);background:var(--surface);color:var(--text);border-radius:12px;padding:12px 20px;display:inline-flex;gap:8px;align-items:center;justify-content:center;font-weight:700;font-size:13px;transition:.22s}.btn:hover{transform:translateY(-2px);box-shadow:var(--shadow)}.btn.primary{border:0;background:linear-gradient(115deg,#6d5ef5,#7969ef 65%,#5a8bf5);color:#fff;box-shadow:0 8px 28px #6d5ef54d}.btn.ghost{background:transparent}.btn.small{padding:8px 12px;font-size:11px}.btn.full{width:100%}.hero{text-align:center;position:relative;padding:110px 0 65px;overflow:hidden}.hero-glow{position:absolute;width:440px;height:440px;filter:blur(85px);opacity:.14;border-radius:50%;z-index:-1;animation:float 11s ease-in-out infinite}.glow-a{background:#6d5ef5;top:0;left:-100px}.glow-b{background:#22d3ee;right:-120px;top:80px;animation-delay:-6s}@keyframes float{50%{transform:translateY(55px)}}.eyebrow{font-size:11px;letter-spacing:2px;font-weight:800;color:var(--purple);text-transform:uppercase}.hero h1{font-size:clamp(42px,5.4vw,74px);letter-spacing:-3.5px;line-height:1.18;margin:22px auto;max-width:900px}.gradient-text{background:linear-gradient(110deg,#6d5ef5,#22bfd9);color:transparent;background-clip:text}.lead{color:var(--muted);max-width:710px;margin:0 auto 34px;font-size:15px}.hero-form{max-width:780px;margin:auto;padding:12px;background:var(--surface);border:1px solid var(--border);border-radius:20px;box-shadow:var(--shadow);text-align:left}.hero-form textarea{border:0;background:none;width:100%;padding:18px;outline:0;resize:vertical;color:var(--text);font-size:15px}.hero-actions{display:flex;align-items:center;justify-content:space-between;gap:10px;padding:0 5px 4px}.hero-actions span{font-size:12px;color:var(--muted)}.example-line{margin:23px auto;display:flex;justify-content:center;gap:10px;flex-wrap:wrap;align-items:center;font-size:12px;color:var(--muted)}.example{border:1px solid var(--border);background:var(--surface);color:var(--text);padding:7px 11px;border-radius:24px;font-size:11px}.example:hover{border-color:var(--purple)}.hero-preview{width:min(980px,100%);margin:74px auto 0;background:var(--surface);padding:12px;display:grid;grid-template-columns:120px 1fr 85px;gap:12px;border-radius:24px;border:1px solid var(--border);box-shadow:0 32px 100px #5b538b20;transform:perspective(1200px) rotateX(4deg)}.preview-sidebar,.preview-tools{background:var(--surface2);border-radius:13px;padding:18px 12px;display:flex;flex-direction:column;gap:13px}.mini-sl{aspect-ratio:16/9;background:linear-gradient(140deg,#181d46,#744cdd);border-radius:5px;opacity:.55}.mini-sl.active{outline:2px solid #7868ed;outline-offset:3px;opacity:1}.preview-main{aspect-ratio:16/9;position:relative;overflow:hidden;background:#151c43;color:#fff;text-align:left;padding:10%;border-radius:14px}.preview-main small{color:#9baaf2;letter-spacing:3px;font-size:10px}.preview-main h2{font-size:clamp(22px,3.3vw,49px);line-height:1.22;position:relative;z-index:2}.preview-main h2 em{font-style:normal;color:#a29bff}.preview-main p{font-size:11px;color:#b5c3ea}.mock-circle{position:absolute;width:48%;aspect-ratio:1;background:linear-gradient(140deg,#6442e3,#23d4e8);border-radius:50%;right:-10%;bottom:-20%;filter:blur(1px);opacity:.8}.preview-tools div{height:28px;border-radius:8px;background:var(--border)}.section{padding:105px 0}.section-head{text-align:center;margin-bottom:40px}.section-head h2{font-size:clamp(29px,3.5vw,44px);letter-spacing:-1.7px;line-height:1.2;margin:14px 0}.section-head p{font-size:14px;color:var(--muted)}.feature-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}.feature-grid article,.panel,.project-card{background:var(--surface);border:1px solid var(--border);border-radius:20px;box-shadow:var(--shadow)}.feature-grid article{padding:29px;transition:.2s}.feature-grid article:hover{transform:translateY(-5px)}.feature-grid article 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spin{to{transform:rotate(360deg)}}.shimmer{width:100%;height:8px;border-radius:10px;background:linear-gradient(90deg,var(--surface2),#6d5ef577,var(--surface2));background-size:200%;animation:shine 1.3s linear infinite;margin-top:25px}@keyframes shine{to{background-position:-200%}}#toast{position:fixed;z-index:200;bottom:25px;left:50%;transform:translate(-50%,130px);background:#27243f;color:white;padding:14px 22px;border-radius:12px;box-shadow:var(--shadow);font-size:12px;transition:.25s;max-width:85vw}#toast.show{transform:translate(-50%,0)}#toast.bad{background:#93354b}#present{position:fixed;inset:0;background:#070711;z-index:150;display:grid;place-items:center}#present-canvas{width:min(94vw,calc(93vh * 16/9));aspect-ratio:16/9}.present-close{position:absolute;right:22px;top:20px;border:0;background:#ffffff26;color:white;padding:10px 15px;border-radius:10px;z-index:2}.present-nav{position:absolute;bottom:12px;display:flex;gap:10px}.present-nav button{background:#ffffff26;color:white;border:0;padding:9px 20px;border-radius:8px}#print-area{display:none}@media(max-width:1100px){.editor-shell{grid-template-columns:145px minmax(0,1fr) 220px}.editor-center{padding:14px}.slide-list,.properties{padding:10px}.theme-grid{grid-template-columns:1fr 1fr}.hero-preview{grid-template-columns:90px 1fr 60px}}@media(max-width:760px){.wrap{width:calc(100% - 26px)}.top-inner{gap:8px;min-height:61px}.brand{font-size:13px}.brand-icon{width:28px;height:28px}.top-inner nav{gap:12px}.top-inner nav a{display:none}.top-inner nav button{font-size:11px}.hero{padding-top:75px}.hero h1{letter-spacing:-2px}.hero-preview{grid-template-columns:45px 1fr 0;gap:7px;padding:6px;margin-top:45px}.preview-tools{display:none}.preview-sidebar{padding:10px 5px}.preview-main{padding:9%}.preview-main h2{font-size:clamp(17px,5vw,29px)}.feature-grid,.create-grid,.projects-grid{grid-template-columns:1fr}.section{padding:65px 0}.hero-actions{flex-wrap:wrap}.hero-actions .btn{width:100%}.panel{padding:17px}.outline-row{grid-template-columns:15px 20px minmax(0,1fr) 35px;gap:5px}.outline-row select{grid-column:3;grid-row:2}.outline-row input{min-width:0}.outline-row .remove{grid-column:4;grid-row:1}.editor-toolbar{flex-wrap:wrap;padding:8px;gap:5px}.editor-toolbar input{width:43vw;font-size:12px}.save-status{display:none}.editor-shell{display:flex;flex-direction:column}.slide-list{order:2;border-right:0;border-top:1px solid var(--border)}#thumbnails{display:flex;gap:10px;overflow-x:auto}.thumb{min-width:135px;max-width:135px}.editor-center{order:1}.properties{order:3;border-left:0;border-top:1px solid var(--border)}.properties .theme-grid{grid-template-columns:repeat(2,1fr)}.canvas-wrap{border-radius:6px}.below-canvas{justify-content:center}.below-canvas span{width:100%}.canvas-top{padding:0 2px}.editor-toolbar .toolbar-spacer{flex-basis:20px}.outline-actions .btn{flex:1}.footer{padding:27px 0}}@media print{body>*{display:none!important}#print-area{display:block!important}#print-area .slide-surface{page-break-after:always;break-after:page;width:13.333in!important;height:7.5in!important;print-color-adjust:exact;-webkit-print-color-adjust:exact}@page{size:13.333in 7.5in;margin:0}}