:root{
  --primary:#2563EB; --primary-2:#1d4fd0;
  --secondary:#4F46E5; --accent:#06B6D4;
  --success:#16A34A; --danger:#ef4444;
  --bg:#F8FAFC; --bg-2:#ffffff;
  --text:#111827; --muted:#475569;
  --border:#E5E7EB; --card:#ffffff;
  --shadow: 0 10px 30px rgba(15,23,42,.08);
  --shadow-lg: 0 25px 60px rgba(15,23,42,.15);
  --radius:14px; --radius-lg:22px;
  --grad: linear-gradient(135deg,#2563EB 0%,#4F46E5 50%,#06B6D4 100%);
  --grad-soft: linear-gradient(135deg,rgba(37,99,235,.10),rgba(6,182,212,.10));
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;background:var(--bg);color:var(--text);
  font-family:'Inter',system-ui,-apple-system,Segoe UI,Roboto,sans-serif;
  line-height:1.65;-webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4,h5{font-family:'Poppins',sans-serif;color:var(--text);line-height:1.2;margin:0 0 .6em}
h1{font-size:clamp(2rem,4.6vw,3.4rem);font-weight:800;letter-spacing:-.02em}
h2{font-size:clamp(1.6rem,3vw,2.25rem);font-weight:700;letter-spacing:-.01em}
h3{font-size:1.25rem;font-weight:600}
p{margin:0 0 1em;color:var(--muted)}
a{color:var(--primary);text-decoration:none}
a:hover{text-decoration:underline}
img{max-width:100%;display:block}
.container{max-width:1180px;margin:0 auto;padding:0 22px}
.sr-only{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap}
.skip-link{position:absolute;left:-9999px;top:0;background:var(--primary);color:#fff;padding:8px 12px;z-index:9999}
.skip-link:focus{left:8px;top:8px}

.btn{display:inline-flex;align-items:center;gap:.5rem;border:0;border-radius:999px;
  padding:.85rem 1.4rem;font-weight:600;cursor:pointer;font-size:.95rem;transition:transform .15s ease,box-shadow .2s ease, background .2s;}
.btn-sm{padding:.55rem 1rem;font-size:.85rem}
.btn-primary{background:var(--grad);color:#fff;box-shadow:0 10px 24px rgba(37,99,235,.35)}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 14px 30px rgba(37,99,235,.45);text-decoration:none}
.btn-ghost{background:transparent;color:var(--text);border:1px solid var(--border)}
.btn-ghost:hover{background:#fff;text-decoration:none}
.icon-btn{background:transparent;border:1px solid var(--border);width:38px;height:38px;border-radius:10px;display:inline-grid;place-items:center;color:var(--text);cursor:pointer}
.icon-btn:hover{background:#fff;border-color:#cbd5e1}

.progress-bar{position:fixed;top:0;left:0;height:3px;width:0;background:var(--grad);z-index:1000;transition:width .1s}

.site-header{position:sticky;top:0;z-index:50;background:rgba(255,255,255,.78);backdrop-filter:saturate(160%) blur(16px);border-bottom:1px solid var(--border)}
.nav-wrap{display:flex;align-items:center;gap:1.2rem;padding:.9rem 22px}
.brand{display:inline-flex;align-items:center;gap:.55rem;font-family:'Poppins';font-weight:700;color:var(--text)}
.brand:hover{text-decoration:none}
.brand strong{color:var(--primary)}
.primary-nav{margin-left:auto}
.primary-nav ul{display:flex;list-style:none;gap:.4rem;margin:0;padding:0}
.primary-nav a{padding:.55rem .85rem;border-radius:999px;color:var(--text);font-weight:500;font-size:.92rem}
.primary-nav a:hover{background:var(--grad-soft);text-decoration:none}
.primary-nav a.active{background:var(--grad-soft);color:var(--primary)}
.nav-actions{display:flex;align-items:center;gap:.5rem}
.menu-btn{display:none}

.search-panel{border-top:1px solid var(--border);background:var(--bg-2);padding:1rem 0}
.search-panel input{width:100%;padding:1rem 1.2rem;border-radius:14px;border:1px solid var(--border);font-size:1rem;background:#fff}
.search-results{list-style:none;padding:0;margin:.6rem 0 0;max-height:300px;overflow:auto}
.search-results li a{display:block;padding:.7rem 1rem;border-radius:10px;color:var(--text)}
.search-results li a:hover{background:var(--grad-soft);text-decoration:none}

.breadcrumbs{padding:1rem 0;font-size:.85rem;color:var(--muted)}
.breadcrumbs ol{list-style:none;display:flex;gap:.5rem;flex-wrap:wrap;padding:0;margin:0}
.breadcrumbs li+li:before{content:"/";margin-right:.5rem;color:#94a3b8}
.breadcrumbs a{color:var(--muted)}

.hero{position:relative;padding:5rem 0 3rem;overflow:hidden}
.hero:before{content:"";position:absolute;inset:-20% -10% 40% -10%;background:
  radial-gradient(60% 50% at 20% 30%,rgba(79,70,229,.35),transparent 60%),
  radial-gradient(50% 40% at 80% 10%,rgba(6,182,212,.35),transparent 60%),
  radial-gradient(70% 60% at 50% 90%,rgba(37,99,235,.20),transparent 60%);
  filter:blur(20px);z-index:-1}
.hero-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:3rem;align-items:center}
.eyebrow{display:inline-flex;align-items:center;gap:.5rem;background:var(--grad-soft);color:var(--primary);font-weight:600;font-size:.8rem;padding:.4rem .8rem;border-radius:999px;margin-bottom:1rem}
.hero h1 span{background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent}
.hero p.lead{font-size:1.15rem;color:var(--muted);max-width:560px}
.hero-cta{display:flex;gap:.7rem;margin:1.5rem 0;flex-wrap:wrap}
.hero-stats{display:flex;gap:2rem;margin-top:1.5rem;flex-wrap:wrap}
.hero-stats div strong{font-family:'Poppins';font-size:1.5rem;color:var(--text);display:block}
.hero-stats div span{font-size:.85rem;color:var(--muted)}
.hero-mock{position:relative}
.hero-mock .frame{aspect-ratio:4/5;background:var(--grad);border-radius:30px;padding:18px;box-shadow:var(--shadow-lg);position:relative;overflow:hidden}
.hero-mock .frame:before{content:"";position:absolute;inset:0;background:
  radial-gradient(circle at 20% 20%,rgba(255,255,255,.25),transparent 40%);}
.hero-mock .strip{background:#0F172A;border-radius:20px;height:100%;padding:14px;display:grid;grid-template-rows:repeat(3,1fr);gap:10px}
.hero-mock .cell{border-radius:14px;background-size:cover;background-position:center;position:relative;overflow:hidden}
.hero-mock .cell:nth-child(1){background:linear-gradient(135deg,#f59e0b,#ef4444)}
.hero-mock .cell:nth-child(2){background:linear-gradient(135deg,#06B6D4,#2563EB)}
.hero-mock .cell:nth-child(3){background:linear-gradient(135deg,#4F46E5,#a855f7)}
.hero-mock .cell:after{content:"";position:absolute;inset:0;background:radial-gradient(circle at 50% 65%,rgba(255,255,255,.25) 0 18%,transparent 22%);}
.hero-mock .badge{position:absolute;top:-14px;right:-14px;background:#fff;border-radius:16px;padding:.6rem .9rem;font-weight:700;font-size:.85rem;box-shadow:var(--shadow);display:flex;align-items:center;gap:.4rem}

section{padding:4rem 0}
.section-head{text-align:center;max-width:760px;margin:0 auto 2.5rem}
.section-head .eyebrow{margin-bottom:.8rem}
.section-head p{font-size:1.05rem}

.grid{display:grid;gap:1.2rem}
.grid-3{grid-template-columns:repeat(3,1fr)}
.grid-4{grid-template-columns:repeat(4,1fr)}
.grid-2{grid-template-columns:repeat(2,1fr)}

.card{background:var(--card);border:1px solid var(--border);border-radius:var(--radius-lg);padding:1.6rem;box-shadow:var(--shadow);transition:transform .25s ease, box-shadow .25s}
.card:hover{transform:translateY(-4px);box-shadow:var(--shadow-lg)}
.card .ico{width:44px;height:44px;border-radius:12px;background:var(--grad-soft);color:var(--primary);display:grid;place-items:center;margin-bottom:1rem}
.card h3{margin-bottom:.4rem}
.card p{margin:0;font-size:.95rem}

.glass{background:rgba(255,255,255,.7);backdrop-filter:blur(18px);border:1px solid rgba(255,255,255,.5);border-radius:var(--radius-lg);box-shadow:var(--shadow)}

.toc{background:var(--card);border:1px solid var(--border);border-radius:var(--radius-lg);padding:1.4rem 1.6rem;box-shadow:var(--shadow);margin-bottom:2rem}
.toc h3{font-size:1rem;color:var(--muted);text-transform:uppercase;letter-spacing:.08em;margin-bottom:.6rem}
.toc ol{margin:0;padding-left:1.2rem;columns:2;column-gap:2rem}
.toc a{color:var(--text)}
.toc a:hover{color:var(--primary)}

table{width:100%;border-collapse:separate;border-spacing:0;background:var(--card);border:1px solid var(--border);border-radius:var(--radius-lg);overflow:hidden;box-shadow:var(--shadow);margin:1.5rem 0}
th,td{padding:.95rem 1rem;text-align:left;font-size:.94rem;border-bottom:1px solid var(--border)}
th{background:var(--grad-soft);font-family:'Poppins';color:var(--text)}
tr:last-child td{border-bottom:0}

.steps{counter-reset:s;display:grid;gap:1.2rem;grid-template-columns:repeat(4,1fr)}
.steps .step{counter-increment:s;background:var(--card);border:1px solid var(--border);border-radius:var(--radius-lg);padding:1.5rem;position:relative;box-shadow:var(--shadow)}
.steps .step:before{content:counter(s,decimal-leading-zero);position:absolute;top:-18px;left:18px;background:var(--grad);color:#fff;width:42px;height:42px;border-radius:12px;display:grid;place-items:center;font-family:'Poppins';font-weight:700;box-shadow:var(--shadow)}
.steps .step h3{margin-top:.6rem}

.filters-grid{display:grid;grid-template-columns:repeat(5,1fr);gap:1rem}
.filter-chip{background:var(--card);border:1px solid var(--border);border-radius:18px;padding:.8rem;text-align:center;box-shadow:var(--shadow);transition:transform .2s}
.filter-chip:hover{transform:translateY(-3px)}
.filter-chip .swatch{aspect-ratio:1;border-radius:12px;margin-bottom:.5rem;background:var(--grad)}
.filter-chip.s2 .swatch{filter:grayscale(1)}
.filter-chip.s3 .swatch{filter:sepia(1)}
.filter-chip.s4 .swatch{filter:saturate(.6) sepia(.5) hue-rotate(-20deg)}
.filter-chip.s5 .swatch{filter:saturate(1.4) hue-rotate(-10deg)}
.filter-chip.s6 .swatch{filter:saturate(1.2) hue-rotate(20deg) brightness(1.05)}
.filter-chip.s7 .swatch{filter:blur(2px)}
.filter-chip.s8 .swatch{filter:brightness(1.3)}
.filter-chip.s9 .swatch{filter:contrast(1.4)}
.filter-chip.s10 .swatch{filter:saturate(2)}

.template-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:1.2rem}
.template{background:var(--card);border:1px solid var(--border);border-radius:var(--radius-lg);padding:1rem;box-shadow:var(--shadow)}
.template .preview{background:#0F172A;border-radius:12px;padding:8px;display:grid;gap:6px;aspect-ratio:3/4;margin-bottom:.7rem}
.template.t2 .preview{grid-template-rows:repeat(2,1fr)}
.template.t3 .preview{grid-template-rows:repeat(3,1fr)}
.template.t4 .preview{grid-template-rows:repeat(4,1fr)}
.template.t6 .preview{grid-template:repeat(3,1fr)/repeat(2,1fr)}
.template .cell{border-radius:8px;background:linear-gradient(135deg,#2563EB,#06B6D4)}
.template .cell:nth-child(2n){background:linear-gradient(135deg,#4F46E5,#a855f7)}
.template h4{margin:.2rem 0;font-family:'Poppins';font-size:1rem}
.template p{font-size:.82rem;margin:0;color:var(--muted)}

.reviews{display:grid;grid-template-columns:repeat(3,1fr);gap:1.2rem}
.review{background:var(--card);border:1px solid var(--border);border-radius:var(--radius-lg);padding:1.5rem;box-shadow:var(--shadow)}
.review .stars{color:#f59e0b;margin-bottom:.5rem}
.review .who{display:flex;align-items:center;gap:.7rem;margin-top:1rem}
.review .avatar{width:38px;height:38px;border-radius:50%;background:var(--grad);color:#fff;display:grid;place-items:center;font-weight:700}

details.faq{background:var(--card);border:1px solid var(--border);border-radius:14px;padding:1rem 1.2rem;margin-bottom:.7rem;box-shadow:var(--shadow)}
details.faq summary{cursor:pointer;font-weight:600;list-style:none;display:flex;justify-content:space-between;align-items:center;gap:1rem}
details.faq summary::-webkit-details-marker{display:none}
details.faq summary:after{content:"+";font-size:1.4rem;color:var(--primary)}
details.faq[open] summary:after{content:"–"}
details.faq p{margin-top:.6rem}

.cta-block{background:var(--grad);color:#fff;border-radius:var(--radius-lg);padding:3rem;text-align:center;box-shadow:var(--shadow-lg);position:relative;overflow:hidden}
.cta-block:before{content:"";position:absolute;inset:0;background:radial-gradient(circle at 80% 20%,rgba(255,255,255,.3),transparent 50%);}
.cta-block h2{color:#fff}
.cta-block p{color:rgba(255,255,255,.85);max-width:560px;margin:0 auto 1.4rem}
.cta-block .btn-primary{background:#fff;color:var(--primary);box-shadow:none}
.cta-block .btn-primary:hover{background:#f1f5f9}

.posts-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:1.4rem}
.post-card{background:var(--card);border:1px solid var(--border);border-radius:var(--radius-lg);overflow:hidden;box-shadow:var(--shadow);display:flex;flex-direction:column;transition:transform .25s}
.post-card:hover{transform:translateY(-4px)}
.post-card .thumb{aspect-ratio:16/9;background:var(--grad);position:relative}
.post-card .thumb.v2{background:linear-gradient(135deg,#4F46E5,#06B6D4)}
.post-card .thumb.v3{background:linear-gradient(135deg,#06B6D4,#16A34A)}
.post-card .thumb.v4{background:linear-gradient(135deg,#ef4444,#f59e0b)}
.post-card .thumb.v5{background:linear-gradient(135deg,#a855f7,#2563EB)}
.post-card .thumb.v6{background:linear-gradient(135deg,#0F172A,#4F46E5)}
.post-card .body{padding:1.3rem;display:flex;flex-direction:column;flex:1}
.post-card .tag{font-size:.75rem;color:var(--primary);text-transform:uppercase;font-weight:700;letter-spacing:.06em}
.post-card h3{margin:.4rem 0 .5rem;font-size:1.15rem}
.post-card .meta{margin-top:auto;font-size:.8rem;color:var(--muted);display:flex;justify-content:space-between}

.newsletter{padding:2rem 0 4rem}
.newsletter .glass{display:grid;grid-template-columns:1.2fr 1fr;gap:2rem;padding:2rem;align-items:center}
.newsletter h2{margin:0 0 .4rem}
.newsletter-form{display:flex;gap:.6rem}
.newsletter-form input{flex:1;padding:.9rem 1rem;border-radius:999px;border:1px solid var(--border);background:#fff}

.site-footer{background:#0F172A;color:#cbd5e1;padding:3.5rem 0 1.5rem;margin-top:2rem}
.site-footer .brand{color:#fff}
.site-footer .brand strong{color:#06B6D4}
.site-footer h4{color:#fff;font-family:'Poppins';font-size:1rem;margin:0 0 .8rem}
.site-footer ul{list-style:none;padding:0;margin:0;display:grid;gap:.4rem}
.site-footer a{color:#94a3b8}
.site-footer a:hover{color:#fff}
.footer-grid{display:grid;grid-template-columns:1.4fr repeat(3,1fr);gap:2rem;padding-bottom:2rem;border-bottom:1px solid rgba(255,255,255,.08)}
.copyright{display:flex;justify-content:space-between;padding-top:1.2rem;color:#64748b;font-size:.85rem;flex-wrap:wrap;gap:.6rem}

.back-to-top{position:fixed;right:18px;bottom:18px;width:46px;height:46px;border-radius:50%;background:var(--grad);color:#fff;border:0;box-shadow:var(--shadow-lg);font-size:1.2rem;cursor:pointer;opacity:0;pointer-events:none;transition:opacity .25s, transform .25s}
.back-to-top.show{opacity:1;pointer-events:auto}
.back-to-top:hover{transform:translateY(-3px)}

/* Article */
.article{max-width:820px;margin:0 auto;padding:2rem 0 4rem}
.article h1{font-size:clamp(1.9rem,3.6vw,2.6rem)}
.article .meta{color:var(--muted);font-size:.9rem;margin-bottom:1.5rem}
.article h2{margin-top:2.2rem}
.article h3{margin-top:1.4rem}
.article ul,.article ol{padding-left:1.3rem;color:var(--muted)}
.article blockquote{border-left:4px solid var(--primary);padding:.5rem 1rem;background:var(--grad-soft);border-radius:0 12px 12px 0;margin:1.4rem 0;color:var(--text)}

/* Tool */
.tool-wrap{padding:2rem 0 4rem}
.tool-grid{display:grid;grid-template-columns:1fr 320px;gap:1.6rem}
.viewfinder{background:#0F172A;border-radius:var(--radius-lg);position:relative;aspect-ratio:4/3;overflow:hidden;box-shadow:var(--shadow-lg)}
.viewfinder video,.viewfinder canvas{position:absolute;inset:0;width:100%;height:100%;object-fit:cover}
.viewfinder .countdown{position:absolute;inset:0;display:none;align-items:center;justify-content:center;font-size:9rem;color:#fff;text-shadow:0 4px 30px rgba(0,0,0,.6);font-family:'Poppins';font-weight:800}
.viewfinder.flash:after{content:"";position:absolute;inset:0;background:#fff;animation:flash .4s ease}
@keyframes flash{from{opacity:1}to{opacity:0}}
.cam-controls{display:flex;flex-wrap:wrap;gap:.6rem;margin-top:1rem;align-items:center}
.cam-controls .pill{background:var(--card);border:1px solid var(--border);border-radius:999px;padding:.5rem .9rem;display:inline-flex;gap:.4rem;align-items:center;font-size:.88rem}
.cam-controls select,.cam-controls input[type="color"]{border:0;background:transparent;font:inherit;color:inherit}
.sidebar-panel{background:var(--card);border:1px solid var(--border);border-radius:var(--radius-lg);padding:1.2rem;box-shadow:var(--shadow)}
.sidebar-panel h3{font-size:1rem;font-family:'Poppins';margin:0 0 .6rem;color:var(--muted);text-transform:uppercase;letter-spacing:.08em}
.layout-pick,.filter-pick{display:grid;grid-template-columns:repeat(3,1fr);gap:.4rem;margin-bottom:1rem}
.layout-pick button,.filter-pick button{border:1px solid var(--border);background:#fff;border-radius:10px;padding:.55rem .4rem;font-size:.78rem;cursor:pointer;font-family:inherit;color:var(--text)}
.layout-pick button.active,.filter-pick button.active{background:var(--grad);color:#fff;border-color:transparent}
.timer-pick{display:flex;gap:.4rem;margin-bottom:1rem}
.timer-pick button{flex:1;padding:.55rem;border-radius:10px;border:1px solid var(--border);background:#fff;cursor:pointer;color:var(--text)}
.timer-pick button.active{background:var(--grad);color:#fff;border:0}
.strip-preview{margin-top:1.2rem;background:#0F172A;border-radius:12px;padding:10px;display:grid;gap:8px;min-height:220px}
.strip-preview .slot{border-radius:8px;background:#1e293b;aspect-ratio:4/3;position:relative;overflow:hidden;display:grid;place-items:center;color:#475569;font-size:.8rem}
.strip-preview .slot img{width:100%;height:100%;object-fit:cover;display:block}
.strip-preview .slot .del{position:absolute;top:4px;right:4px;background:rgba(0,0,0,.55);color:#fff;border:0;border-radius:50%;width:22px;height:22px;cursor:pointer;font-size:.85rem;display:none}
.strip-preview .slot:hover .del{display:block}
.tool-actions{display:grid;grid-template-columns:1fr 1fr;gap:.5rem;margin-top:.8rem}
.range-row{display:grid;grid-template-columns:80px 1fr 40px;gap:.5rem;align-items:center;font-size:.85rem;margin-bottom:.4rem}
.range-row input{width:100%}
.caption-input,.bg-input{width:100%;padding:.6rem .8rem;border-radius:10px;border:1px solid var(--border);background:#fff;color:var(--text);font:inherit;margin-bottom:.6rem}
.toggle-row{display:flex;justify-content:space-between;align-items:center;font-size:.9rem;margin:.4rem 0}
.switch{position:relative;width:38px;height:22px;background:#cbd5e1;border-radius:999px;cursor:pointer;transition:.2s}
.switch:before{content:"";position:absolute;top:2px;left:2px;width:18px;height:18px;background:#fff;border-radius:50%;transition:.2s}
.switch.on{background:var(--primary)}
.switch.on:before{left:18px}

/* Misc */
.tabs{display:flex;gap:.4rem;margin-bottom:1rem;flex-wrap:wrap}
.tabs button{border:1px solid var(--border);background:#fff;padding:.5rem 1rem;border-radius:999px;cursor:pointer;font:inherit;color:var(--text)}
.tabs button.active{background:var(--grad);color:#fff;border-color:transparent}

.related-list{display:grid;grid-template-columns:repeat(4,1fr);gap:1rem}
.related-list a{display:block;padding:1rem;background:var(--card);border:1px solid var(--border);border-radius:14px;color:var(--text);text-align:center;box-shadow:var(--shadow)}
.related-list a:hover{transform:translateY(-3px);text-decoration:none}

.contact-form{display:grid;gap:.8rem;max-width:620px;margin:0 auto}
.contact-form input,.contact-form textarea,.contact-form select{width:100%;padding:.85rem 1rem;border-radius:12px;border:1px solid var(--border);background:#fff;font:inherit;color:var(--text)}
.contact-form textarea{min-height:140px;resize:vertical}

.legal-page{max-width:820px;margin:0 auto;padding:1rem 0 4rem}
.legal-page h2{margin-top:2rem}

.notfound{min-height:60vh;display:grid;place-items:center;text-align:center;padding:4rem 1rem}
.notfound h1{font-size:8rem;background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent;margin:0}