:root{
    --bg:#05070c;
    --bg-soft:#09101b;
    --bg-deep:#02050a;
    --panel:rgba(10,16,27,.9);
    --panel-2:rgba(14,22,37,.96);
    --panel-3:rgba(18,28,46,.96);
    --panel-light:#f5f9ff;
    --panel-light-2:#ebf3ff;
    --text:#eef4ff;
    --text-dark:#101829;
    --muted:#9aa9c6;
    --muted-strong:#c5d3ee;
    --muted-dark:#51617f;
    --line:rgba(255,255,255,.08);
    --line-strong:rgba(255,255,255,.14);
    --line-light:rgba(16,24,41,.1);
    --accent:#006bd9;
    --accent-2:#2a9cff;
    --accent-3:#7bc2ff;
    --accent-soft:rgba(0,107,217,.14);
    --accent-rgb:0,107,217;
    --success:#3ddc84;
    --danger:#ff7e92;
    --shadow:0 24px 70px rgba(0,0,0,.4);
    --shadow-soft:0 18px 45px rgba(0,0,0,.26);
    --radius:24px;
    --radius-md:18px;
    --radius-sm:14px;
    --container:1200px;
}

*{
    box-sizing:border-box;
    margin:0;
    padding:0;
}

html{
    scroll-behavior:smooth;
    scroll-padding-top:96px;
}

body{
    min-height:100vh;
    font-family:'Inter', system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    color:var(--text);
    background:
        radial-gradient(920px 560px at 10% -5%, rgba(var(--accent-rgb),.16), rgba(5,7,12,0)),
        radial-gradient(760px 520px at 92% 0%, rgba(42,156,255,.12), rgba(5,7,12,0)),
        linear-gradient(180deg, #04070d 0%, #08101a 36%, #05070c 100%);
}

body::before{
    content:"";
    position:fixed;
    inset:0;
    pointer-events:none;
    background-image:linear-gradient(rgba(255,255,255,.02) 1px, transparent 1px), linear-gradient(90deg, rgba(255,255,255,.02) 1px, transparent 1px);
    background-size:48px 48px;
    mask-image:linear-gradient(180deg, rgba(0,0,0,.45), rgba(0,0,0,0));
    opacity:.15;
    z-index:0;
}

.site-shell{
    position:relative;
    z-index:1;
    overflow:hidden;
}

img{
    max-width:100%;
    display:block;
}

a{
    color:inherit;
    text-decoration:none;
}

button,
input,
textarea{
    font:inherit;
}

button{
    border:none;
    background:none;
}

::selection{
    background:rgba(var(--accent-rgb),.28);
    color:#fff;
}

::-moz-selection{
    background:rgba(var(--accent-rgb),.28);
    color:#fff;
}

:focus-visible{
    outline:none;
    box-shadow:0 0 0 4px rgba(var(--accent-rgb),.22);
    border-radius:12px;
}

.container{
    width:min(var(--container), calc(100% - 40px));
    margin:0 auto;
}

/* Header */
.header{
    position:sticky;
    top:0;
    z-index:60;
    border-bottom:1px solid rgba(255,255,255,.06);
    background:rgba(4,8,14,.78);
    backdrop-filter:blur(14px);
}

.navbar{
    min-height:88px;
    display:flex;
    align-items:center;
    justify-content:space-between;
    gap:24px;
}

.brand{
    display:flex;
    align-items:center;
    gap:18px;
    min-width:0;
    flex-shrink:0;
}

.brand-logo{
    width:auto;
    height:52px;
    object-fit:contain;
}

.brand-copy{
    display:flex;
    flex-direction:column;
    gap:6px;
}

.brand-sub{
    font-size:.86rem;
    color:var(--muted);
    font-weight:700;
    letter-spacing:.08em;
    text-transform:uppercase;
}

.nav,
.nav-actions{
    display:flex;
    align-items:center;
    gap:20px;
}

.nav{
    flex-wrap:wrap;
    justify-content:center;
}

.nav-link{
    position:relative;
    font-weight:600;
    color:var(--muted);
    transition:color .2s ease;
}

.nav-link::after{
    content:"";
    position:absolute;
    left:0;
    right:0;
    bottom:-10px;
    height:2px;
    border-radius:999px;
    background:linear-gradient(90deg, var(--accent), var(--accent-2));
    transform:scaleX(0);
    transform-origin:left;
    transition:transform .2s ease;
}

.nav-link:hover,
.nav-link.is-active{
    color:var(--text);
}

.nav-link:hover::after,
.nav-link.is-active::after{
    transform:scaleX(1);
}

.btn{
    display:inline-flex;
    align-items:center;
    justify-content:center;
    min-height:50px;
    padding:0 20px;
    border-radius:999px;
    font-weight:700;
    font-size:.96rem;
    cursor:pointer;
    transition:transform .2s ease, box-shadow .2s ease, border-color .2s ease, background .2s ease, color .2s ease;
    border:1px solid transparent;
    text-align:center;
}

.btn:hover{
    transform:translateY(-1px);
}

.btn-primary{
    color:#fff;
    background:linear-gradient(135deg, #005dcb 0%, #228df4 100%);
    box-shadow:0 18px 40px rgba(var(--accent-rgb),.28);
}

.btn-primary:hover{
    box-shadow:0 22px 46px rgba(var(--accent-rgb),.34);
}

.btn-secondary{
    color:var(--text);
    border-color:rgba(255,255,255,.14);
    background:rgba(255,255,255,.03);
}

.btn-secondary:hover{
    border-color:rgba(255,255,255,.24);
    background:rgba(255,255,255,.05);
}

.btn-light{
    color:var(--text-dark);
    border-color:transparent;
    background:#fff;
    box-shadow:0 16px 40px rgba(12,21,36,.08);
}

.btn-light:hover{
    box-shadow:0 20px 50px rgba(12,21,36,.12);
}

.btn-block{
    width:100%;
}

.nav-toggle{
    display:none;
    width:48px;
    height:48px;
    border-radius:14px;
    border:1px solid rgba(255,255,255,.16);
    background:rgba(255,255,255,.04);
    flex-direction:column;
    justify-content:center;
    align-items:center;
    gap:4px;
    cursor:pointer;
}

.nav-toggle span{
    width:18px;
    height:2px;
    background:var(--text);
    border-radius:999px;
    display:block;
}

.mobile-menu{
    display:none;
    padding:0 0 18px;
    border-top:1px solid rgba(255,255,255,.06);
}

.mobile-menu.open{
    display:block;
}

.mobile-menu .nav-link{
    display:block;
    padding:12px 0;
}

.mobile-actions{
    display:flex;
    gap:12px;
    flex-wrap:wrap;
    margin-top:16px;
}

/* Main layout */
.site-main{
    position:relative;
    z-index:1;
}

.section{
    padding:88px 0;
}

.section-alt{
    background:linear-gradient(180deg, rgba(255,255,255,.02), rgba(255,255,255,.015));
    border-top:1px solid rgba(255,255,255,.05);
    border-bottom:1px solid rgba(255,255,255,.05);
}

.section-tight{
    padding:70px 0;
}

.section-head{
    display:flex;
    justify-content:space-between;
    align-items:flex-end;
    gap:28px;
    margin-bottom:28px;
}

.section-head-copy{
    max-width:720px;
}

.eyebrow{
    display:inline-flex;
    align-items:center;
    gap:10px;
    margin-bottom:18px;
    color:var(--accent-3);
    font-weight:700;
    font-size:.84rem;
    letter-spacing:.1em;
    text-transform:uppercase;
}

.eyebrow::before{
    content:"";
    width:36px;
    height:1px;
    background:linear-gradient(90deg, rgba(var(--accent-rgb),0), rgba(var(--accent-rgb),1));
}

.h1,
.h2,
.h3-display{
    letter-spacing:-.04em;
    line-height:1.02;
}

.h1{
    font-size:clamp(2.75rem, 6vw, 5rem);
    max-width:13ch;
    font-weight:800;
}

.h2{
    font-size:clamp(2rem, 4vw, 3rem);
    font-weight:800;
}

.h3-display{
    font-size:1.4rem;
    font-weight:800;
}

.accent{
    color:var(--accent-2);
}

.lead{
    margin-top:22px;
    color:var(--muted-strong);
    font-size:1.06rem;
    line-height:1.8;
    max-width:68ch;
}

.section-intro{
    color:var(--muted);
    line-height:1.8;
    max-width:72ch;
    font-size:1rem;
}

.light-copy{
    color:var(--muted-dark);
}

/* Hero */
.hero{
    position:relative;
    overflow:hidden;
    padding:94px 0 78px;
}

.hero::after{
    content:"";
    position:absolute;
    inset:auto 0 0 0;
    height:120px;
    background:linear-gradient(180deg, rgba(5,7,12,0), rgba(5,7,12,1));
    pointer-events:none;
}

.hero-grid{
    display:grid;
    grid-template-columns:minmax(0, 1.08fr) minmax(320px, .92fr);
    gap:34px;
    align-items:center;
}

.hero-copy{
    position:relative;
    z-index:1;
}

.hero-actions{
    display:flex;
    gap:14px;
    flex-wrap:wrap;
    margin-top:30px;
}

.hero-points{
    margin-top:28px;
    display:grid;
    gap:14px;
}

.hero-points li{
    list-style:none;
    display:flex;
    gap:14px;
    align-items:flex-start;
    color:var(--muted-strong);
    line-height:1.7;
}

.point-icon{
    width:24px;
    height:24px;
    border-radius:999px;
    background:rgba(61,220,132,.12);
    border:1px solid rgba(61,220,132,.24);
    display:flex;
    align-items:center;
    justify-content:center;
    color:var(--success);
    font-weight:800;
    flex:0 0 auto;
    margin-top:2px;
}

.hero-visual{
    position:relative;
}

.visual-card{
    position:relative;
    padding:28px;
    background:linear-gradient(180deg, rgba(15,23,37,.98), rgba(9,14,22,.96));
    border:1px solid rgba(255,255,255,.09);
    border-radius:30px;
    box-shadow:var(--shadow);
    overflow:hidden;
}

.visual-card::before{
    content:"";
    position:absolute;
    inset:-20% auto auto 60%;
    width:320px;
    height:320px;
    border-radius:50%;
    background:radial-gradient(circle, rgba(var(--accent-rgb),.32), rgba(var(--accent-rgb),0) 70%);
    pointer-events:none;
}

.visual-header{
    display:flex;
    align-items:center;
    justify-content:space-between;
    gap:18px;
    margin-bottom:24px;
    position:relative;
    z-index:1;
}

.visual-title{
    font-weight:800;
    letter-spacing:-.02em;
    font-size:1.2rem;
}

.visual-sub{
    display:block;
    margin-top:6px;
    color:var(--muted);
    font-weight:500;
    font-size:.95rem;
}

.shield-pulse{
    width:62px;
    height:62px;
    border-radius:22px;
    background:linear-gradient(135deg, rgba(var(--accent-rgb),.24), rgba(42,156,255,.18));
    border:1px solid rgba(255,255,255,.12);
    display:flex;
    align-items:center;
    justify-content:center;
    box-shadow:0 0 0 8px rgba(var(--accent-rgb),.08);
    font-size:1.4rem;
}

.visual-grid{
    display:grid;
    gap:14px;
    position:relative;
    z-index:1;
}

.visual-row{
    display:flex;
    justify-content:space-between;
    align-items:center;
    gap:16px;
    padding:15px 16px;
    border-radius:18px;
    background:rgba(255,255,255,.04);
    border:1px solid rgba(255,255,255,.07);
}

.visual-row strong{
    font-size:1rem;
    letter-spacing:-.02em;
}

.visual-row small{
    display:block;
    margin-top:3px;
    color:var(--muted);
}

.pill{
    display:inline-flex;
    align-items:center;
    justify-content:center;
    min-width:84px;
    min-height:36px;
    padding:0 12px;
    border-radius:999px;
    font-size:.82rem;
    font-weight:800;
    letter-spacing:.08em;
    text-transform:uppercase;
}

.pill-blue{
    color:#dceeff;
    background:rgba(var(--accent-rgb),.22);
    border:1px solid rgba(var(--accent-rgb),.24);
}

.pill-green{
    color:#dfffee;
    background:rgba(61,220,132,.16);
    border:1px solid rgba(61,220,132,.24);
}

.visual-metrics{
    margin-top:18px;
    display:grid;
    grid-template-columns:repeat(3, minmax(0, 1fr));
    gap:12px;
    position:relative;
    z-index:1;
}

.metric{
    padding:16px;
    border-radius:18px;
    background:rgba(255,255,255,.03);
    border:1px solid rgba(255,255,255,.06);
}

.metric-value{
    font-weight:800;
    font-size:1.2rem;
    letter-spacing:-.03em;
}

.metric-label{
    display:block;
    margin-top:6px;
    color:var(--muted);
    font-size:.88rem;
    line-height:1.5;
}

.badge-row{
    display:flex;
    flex-wrap:wrap;
    gap:10px;
    margin-top:22px;
}

.badge{
    display:inline-flex;
    align-items:center;
    gap:10px;
    padding:10px 14px;
    border-radius:999px;
    background:rgba(255,255,255,.04);
    border:1px solid rgba(255,255,255,.08);
    color:var(--muted-strong);
    font-weight:600;
    font-size:.92rem;
}

/* Cards */
.grid-2,
.grid-3,
.grid-4{
    display:grid;
    gap:18px;
}

.grid-2{
    grid-template-columns:repeat(2, minmax(0,1fr));
}

.grid-3{
    grid-template-columns:repeat(3, minmax(0,1fr));
}

.grid-4{
    grid-template-columns:repeat(4, minmax(0,1fr));
}

.card{
    background:linear-gradient(180deg, rgba(14,22,37,.95), rgba(10,16,27,.92));
    border:1px solid rgba(255,255,255,.08);
    border-radius:24px;
    padding:24px;
    box-shadow:var(--shadow-soft);
    min-height:100%;
}

.card-light{
    background:linear-gradient(180deg, #ffffff 0%, #f4f8ff 100%);
    border:1px solid rgba(16,24,41,.08);
    color:var(--text-dark);
    box-shadow:0 18px 45px rgba(8,16,27,.08);
}

.card-accent{
    background:linear-gradient(180deg, rgba(var(--accent-rgb),.2) 0%, rgba(13,22,38,.96) 100%);
    border:1px solid rgba(var(--accent-rgb),.2);
}

.card-icon{
    width:48px;
    height:48px;
    border-radius:16px;
    display:flex;
    align-items:center;
    justify-content:center;
    background:rgba(var(--accent-rgb),.14);
    border:1px solid rgba(var(--accent-rgb),.2);
    color:var(--accent-3);
    font-weight:800;
    font-size:1.15rem;
    margin-bottom:18px;
}

.card h3,
.card h4{
    font-size:1.16rem;
    letter-spacing:-.02em;
    font-weight:800;
    margin-bottom:10px;
}

.card p,
.card li{
    color:var(--muted);
    line-height:1.75;
}

.card-light p,
.card-light li{
    color:var(--muted-dark);
}

.card-list{
    display:grid;
    gap:10px;
    margin-top:16px;
}

.card-list li{
    list-style:none;
    padding-left:28px;
    position:relative;
}

.card-list li::before{
    content:"✓";
    position:absolute;
    left:0;
    top:0;
    color:var(--success);
    font-weight:800;
}

.kicker{
    display:inline-flex;
    margin-bottom:12px;
    color:var(--accent-3);
    font-size:.84rem;
    font-weight:700;
    letter-spacing:.08em;
    text-transform:uppercase;
}

.stat-strip{
    display:grid;
    grid-template-columns:repeat(3, minmax(0,1fr));
    gap:18px;
    margin-top:28px;
}

.stat-card{
    padding:20px;
    border-radius:22px;
    background:rgba(255,255,255,.03);
    border:1px solid rgba(255,255,255,.08);
}

.stat-card strong{
    display:block;
    font-size:2rem;
    letter-spacing:-.05em;
    margin-bottom:6px;
}

.stat-card span{
    color:var(--muted);
    line-height:1.6;
}

.split-panel{
    display:grid;
    grid-template-columns:minmax(0, 1.12fr) minmax(320px, .88fr);
    gap:22px;
    align-items:start;
}

.stack{
    display:grid;
    gap:16px;
}

.stack-card{
    padding:20px 22px;
    border-radius:20px;
    background:rgba(255,255,255,.04);
    border:1px solid rgba(255,255,255,.08);
}

.stack-card strong{
    display:block;
    font-size:1.08rem;
    letter-spacing:-.02em;
    margin-bottom:8px;
}

.stack-card p{
    color:var(--muted);
    line-height:1.7;
}

.checklist{
    display:grid;
    gap:12px;
    margin-top:18px;
}

.check-item{
    display:flex;
    gap:12px;
    align-items:flex-start;
    padding:14px 16px;
    border-radius:18px;
    background:rgba(255,255,255,.04);
    border:1px solid rgba(255,255,255,.08);
}

.check-item span:last-child{
    color:var(--muted-strong);
    line-height:1.7;
}

.platform-grid{
    display:grid;
    grid-template-columns:repeat(2, minmax(0,1fr));
    gap:14px;
}

.platform-pill{
    padding:16px 18px;
    border-radius:18px;
    background:rgba(255,255,255,.04);
    border:1px solid rgba(255,255,255,.08);
    color:var(--muted-strong);
    font-weight:700;
    text-align:center;
}

/* Page hero */
.page-hero{
    padding:72px 0 46px;
    position:relative;
}

.page-hero::after{
    content:"";
    position:absolute;
    inset:auto 0 0 0;
    height:80px;
    background:linear-gradient(180deg, rgba(5,7,12,0), rgba(5,7,12,.92));
    pointer-events:none;
}

.page-hero-grid{
    display:grid;
    grid-template-columns:minmax(0, 1fr) minmax(290px, .78fr);
    gap:22px;
    align-items:end;
}

.page-hero-copy .h1{
    max-width:12ch;
}

.page-hero-copy .lead{
    max-width:62ch;
    margin-top:18px;
}

.page-hero-panel{
    padding:24px;
    border-radius:24px;
    background:linear-gradient(180deg, rgba(15,23,37,.95), rgba(9,14,22,.92));
    border:1px solid rgba(255,255,255,.08);
    box-shadow:var(--shadow-soft);
}

.page-hero-panel h3{
    font-size:1.05rem;
    letter-spacing:-.02em;
    font-weight:800;
    margin-bottom:12px;
}

.page-hero-panel p{
    color:var(--muted);
    line-height:1.7;
}

.mini-list{
    display:grid;
    gap:10px;
    margin-top:14px;
}

.mini-list li{
    list-style:none;
    display:flex;
    justify-content:space-between;
    gap:14px;
    color:var(--muted-strong);
    padding:10px 0;
    border-bottom:1px solid rgba(255,255,255,.07);
}

.mini-list li:last-child{
    border-bottom:none;
}

.mini-list span:first-child{
    color:var(--muted);
}

/* Forms */
.form-grid{
    display:grid;
    grid-template-columns:minmax(0, 1.08fr) minmax(300px, .92fr);
    gap:22px;
    align-items:start;
}

.form-card{
    padding:26px;
    border-radius:26px;
    background:linear-gradient(180deg, rgba(14,22,37,.98), rgba(10,16,27,.94));
    border:1px solid rgba(255,255,255,.08);
    box-shadow:var(--shadow-soft);
}

.form-card-light{
    background:linear-gradient(180deg, #ffffff 0%, #f4f8ff 100%);
    border:1px solid rgba(16,24,41,.08);
    color:var(--text-dark);
}

.form-card h2,
.form-card h3{
    font-size:1.35rem;
    letter-spacing:-.02em;
    font-weight:800;
    margin-bottom:10px;
}

.form-card p{
    color:var(--muted);
    line-height:1.75;
}

.form-card-light p{
    color:var(--muted-dark);
}

.form-row-2{
    display:grid;
    grid-template-columns:repeat(2, minmax(0,1fr));
    gap:14px;
}

.form-fields{
    display:grid;
    gap:14px;
    margin-top:18px;
}

label{
    display:block;
    margin-bottom:8px;
    font-size:.94rem;
    font-weight:700;
    color:var(--text);
}

.form-card-light label{
    color:var(--text-dark);
}

.input,
textarea,
input[type="text"],
input[type="email"],
input[type="number"]{
    width:100%;
    border-radius:16px;
    border:1px solid rgba(255,255,255,.1);
    background:rgba(255,255,255,.05);
    color:var(--text);
    padding:14px 15px;
    outline:none;
}

.form-card-light .input,
.form-card-light textarea,
.form-card-light input[type="text"],
.form-card-light input[type="email"],
.form-card-light input[type="number"]{
    background:#fff;
    border:1px solid rgba(16,24,41,.12);
    color:var(--text-dark);
}

textarea{
    min-height:160px;
    resize:vertical;
}

.input:focus,
textarea:focus,
input[type="text"]:focus,
input[type="email"]:focus,
input[type="number"]:focus{
    border-color:rgba(var(--accent-rgb),.5);
    box-shadow:0 0 0 4px rgba(var(--accent-rgb),.14);
}

.form-helper{
    margin-top:8px;
    color:var(--muted);
    font-size:.84rem;
    line-height:1.6;
}

.form-card-light .form-helper{
    color:var(--muted-dark);
}

.checkbox-row{
    display:flex;
    gap:12px;
    align-items:flex-start;
    margin-top:18px;
    color:var(--muted-strong);
    line-height:1.7;
}

.form-card-light .checkbox-row{
    color:var(--muted-dark);
}

.checkbox-row input{
    margin-top:4px;
}

.status{
    display:none;
    margin-top:14px;
    border-radius:14px;
    padding:12px 14px;
    border:1px solid rgba(255,255,255,.08);
    background:rgba(255,255,255,.04);
    color:var(--muted-strong);
    line-height:1.6;
}

.form-card-light .status{
    background:#eef5ff;
    border-color:rgba(16,24,41,.08);
    color:#25415f;
}

.status.is-error{
    display:block;
    color:#ffd8df;
    border-color:rgba(255,126,146,.22);
    background:rgba(255,126,146,.08);
}

.status.is-success{
    display:block;
    color:#dfffee;
    border-color:rgba(61,220,132,.22);
    background:rgba(61,220,132,.1);
}

.math-row{
    display:flex;
    align-items:center;
    gap:10px;
    flex-wrap:wrap;
}

.math-badge{
    display:inline-flex;
    align-items:center;
    min-height:48px;
    padding:0 14px;
    border-radius:16px;
    background:rgba(255,255,255,.05);
    border:1px solid rgba(255,255,255,.08);
    color:var(--muted-strong);
    font-weight:700;
}

.form-card-light .math-badge{
    background:#fff;
    border-color:rgba(16,24,41,.1);
    color:var(--text-dark);
}

.spinner{
    width:18px;
    height:18px;
    border-radius:50%;
    border:2px solid rgba(255,255,255,.26);
    border-top-color:#fff;
    display:inline-block;
    animation:spin 1s linear infinite;
}

.spinner-dark{
    border-color:rgba(16,24,41,.18);
    border-top-color:var(--text-dark);
}

@keyframes spin{
    to{ transform:rotate(360deg); }
}

/* Pricing */
.pricing-grid{
    display:grid;
    grid-template-columns:repeat(2, minmax(0,1fr));
    gap:20px;
    align-items:stretch;
}

.price-card{
    display:flex;
    flex-direction:column;
    gap:18px;
    padding:28px;
    border-radius:28px;
    background:linear-gradient(180deg, rgba(15,23,37,.98), rgba(10,16,27,.94));
    border:1px solid rgba(255,255,255,.08);
    box-shadow:var(--shadow-soft);
}

.price-card-featured{
    background:linear-gradient(180deg, rgba(var(--accent-rgb),.24), rgba(12,19,32,.98));
    border-color:rgba(var(--accent-rgb),.28);
}

.price-top{
    display:flex;
    align-items:flex-start;
    justify-content:space-between;
    gap:18px;
}

.price-top h3{
    font-size:1.4rem;
    letter-spacing:-.03em;
    font-weight:800;
}

.price-note{
    color:var(--muted);
    line-height:1.7;
}

.price{
    font-size:3rem;
    line-height:1;
    font-weight:800;
    letter-spacing:-.05em;
}

.price small{
    display:block;
    margin-top:8px;
    font-size:.95rem;
    color:var(--muted);
    font-weight:600;
    letter-spacing:0;
}

.price-card .card-list{
    margin-top:0;
    flex:1;
}

.price-actions{
    display:flex;
    gap:12px;
    flex-wrap:wrap;
    margin-top:auto;
}

/* Download cards */
.dual-panel{
    display:grid;
    grid-template-columns:minmax(0, 1.04fr) minmax(320px, .96fr);
    gap:22px;
    align-items:start;
}

.download-highlight{
    padding:28px;
    border-radius:28px;
    background:linear-gradient(180deg, rgba(var(--accent-rgb),.22), rgba(11,17,28,.96));
    border:1px solid rgba(var(--accent-rgb),.24);
    box-shadow:var(--shadow);
}

.download-highlight h2{
    font-size:1.6rem;
    letter-spacing:-.03em;
    font-weight:800;
    margin-bottom:12px;
}

.download-meta{
    display:grid;
    grid-template-columns:repeat(3, minmax(0,1fr));
    gap:12px;
    margin-top:20px;
}

.download-meta .metric{
    background:rgba(255,255,255,.05);
}

.info-list{
    display:grid;
    gap:10px;
    margin-top:16px;
}

.info-list li{
    list-style:none;
    padding-left:28px;
    position:relative;
    color:var(--muted-strong);
    line-height:1.7;
}

.info-list li::before{
    content:"✓";
    position:absolute;
    left:0;
    top:0;
    color:var(--success);
    font-weight:800;
}

/* FAQ */
.search-shell{
    margin-top:22px;
    margin-bottom:18px;
    display:flex;
    flex-wrap:wrap;
    gap:14px;
    align-items:center;
}

.search-box{
    display:flex;
    gap:12px;
    align-items:center;
    flex:1 1 520px;
    padding:14px 16px;
    border-radius:20px;
    background:rgba(255,255,255,.04);
    border:1px solid rgba(255,255,255,.08);
}

.search-box input{
    flex:1;
    border:none;
    background:transparent;
    color:var(--text);
    outline:none;
    font-size:1rem;
}

.search-box input::placeholder{
    color:var(--muted);
}

.tag-row{
    display:flex;
    flex-wrap:wrap;
    gap:10px;
}

.filter-tag{
    display:inline-flex;
    align-items:center;
    justify-content:center;
    min-height:38px;
    padding:0 14px;
    border-radius:999px;
    background:rgba(255,255,255,.04);
    border:1px solid rgba(255,255,255,.08);
    color:var(--muted-strong);
    font-size:.9rem;
    font-weight:700;
    cursor:pointer;
    transition:background .2s ease, border-color .2s ease, color .2s ease;
}

.filter-tag.is-active,
.filter-tag:hover{
    background:rgba(var(--accent-rgb),.18);
    border-color:rgba(var(--accent-rgb),.24);
    color:#fff;
}

.faq-list{
    display:grid;
    gap:14px;
    margin-top:18px;
}

.faq-item{
    border-radius:22px;
    background:linear-gradient(180deg, rgba(14,22,37,.96), rgba(10,16,27,.93));
    border:1px solid rgba(255,255,255,.08);
    overflow:hidden;
}

.faq-button{
    width:100%;
    display:flex;
    align-items:center;
    justify-content:space-between;
    gap:18px;
    padding:20px 22px;
    text-align:left;
    color:var(--text);
    cursor:pointer;
}

.faq-button span{
    font-size:1.06rem;
    letter-spacing:-.02em;
    font-weight:700;
}

.faq-button strong{
    width:38px;
    height:38px;
    border-radius:14px;
    border:1px solid rgba(255,255,255,.08);
    display:flex;
    align-items:center;
    justify-content:center;
    background:rgba(255,255,255,.04);
    font-size:1.3rem;
    font-weight:500;
    transition:transform .2s ease;
}

.faq-item.is-open .faq-button strong{
    transform:rotate(45deg);
}

.faq-panel{
    display:none;
    padding:0 22px 22px;
    color:var(--muted);
    line-height:1.8;
}

.faq-item.is-open .faq-panel{
    display:block;
}

.faq-panel p + p{
    margin-top:10px;
}

.example-box{
    margin-top:14px;
    border-radius:16px;
    border:1px solid rgba(255,255,255,.08);
    background:rgba(255,255,255,.03);
    padding:14px 16px;
    color:var(--muted-strong);
    font-family:ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
    font-size:.9rem;
    white-space:pre-wrap;
    word-break:break-word;
}

/* CTA */
.cta-panel{
    position:relative;
    overflow:hidden;
    padding:30px;
    border-radius:30px;
    background:linear-gradient(135deg, rgba(var(--accent-rgb),.26), rgba(13,21,35,.98) 62%);
    border:1px solid rgba(var(--accent-rgb),.26);
    box-shadow:var(--shadow);
}

.cta-panel::after{
    content:"";
    position:absolute;
    right:-60px;
    bottom:-60px;
    width:220px;
    height:220px;
    border-radius:50%;
    background:radial-gradient(circle, rgba(42,156,255,.28), rgba(42,156,255,0) 70%);
}

.cta-panel .section-intro{
    margin-top:10px;
    color:#d4e5ff;
}

.cta-actions{
    display:flex;
    flex-wrap:wrap;
    gap:14px;
    margin-top:24px;
}

/* Footer */
.footer{
    border-top:1px solid rgba(255,255,255,.06);
    background:rgba(3,5,9,.92);
    margin-top:40px;
}

.footer-grid{
    display:grid;
    grid-template-columns:1.2fr .8fr .8fr .9fr;
    gap:26px;
    padding:38px 0 24px;
}

.footer-logo{
    height:42px;
    width:auto;
    object-fit:contain;
}

.footer-copy{
    margin-top:16px;
    color:var(--muted);
    line-height:1.8;
    max-width:40ch;
}

.footer h3{
    font-size:1rem;
    font-weight:800;
    margin-bottom:14px;
}

.footer-list{
    display:grid;
    gap:10px;
    list-style:none;
    color:var(--muted);
}

.footer-list a:hover{
    color:var(--text);
}

.footer-bottom{
    padding:18px 0 28px;
    border-top:1px solid rgba(255,255,255,.06);
    display:flex;
    justify-content:space-between;
    gap:18px;
    color:var(--muted);
    font-size:.92rem;
    flex-wrap:wrap;
}

/* Utility */
.center{
    text-align:center;
}

.mt-12{ margin-top:12px; }
.mt-18{ margin-top:18px; }
.mt-22{ margin-top:22px; }
.mt-28{ margin-top:28px; }
.mt-36{ margin-top:36px; }

.hidden{
    display:none !important;
}

/* Responsive */
@media (max-width: 1160px){
    .nav{
        gap:16px;
    }

    .brand-logo{
        height:48px;
    }

    .footer-grid{
        grid-template-columns:repeat(2, minmax(0,1fr));
    }
}

@media (max-width: 1024px){
    .hero-grid,
    .page-hero-grid,
    .split-panel,
    .dual-panel,
    .form-grid{
        grid-template-columns:1fr;
    }

    .hero{
        padding-top:76px;
    }

    .page-hero{
        padding-top:58px;
    }

    .grid-4{
        grid-template-columns:repeat(2, minmax(0,1fr));
    }

    .visual-metrics,
    .download-meta,
    .stat-strip{
        grid-template-columns:repeat(3, minmax(0,1fr));
    }
}

@media (max-width: 920px){
    .nav,
    .nav-actions{
        display:none;
    }

    .nav-toggle{
        display:flex;
    }

    .brand-sub{
        display:none;
    }

    .navbar{
        min-height:78px;
    }

    .section{
        padding:74px 0;
    }

    .section-head{
        flex-direction:column;
        align-items:flex-start;
    }

    .grid-3,
    .pricing-grid{
        grid-template-columns:1fr;
    }

    .platform-grid{
        grid-template-columns:1fr 1fr;
    }
}

@media (max-width: 720px){
    .container{
        width:min(var(--container), calc(100% - 28px));
    }

    .hero,
    .page-hero{
        padding-bottom:42px;
    }

    .hero::after,
    .page-hero::after{
        height:60px;
    }

    .hero-actions,
    .cta-actions{
        flex-direction:column;
        align-items:stretch;
    }

    .visual-card,
    .card,
    .form-card,
    .price-card,
    .download-highlight,
    .cta-panel{
        padding:22px;
    }

    .grid-2,
    .grid-4,
    .stat-strip,
    .download-meta,
    .visual-metrics{
        grid-template-columns:1fr;
    }

    .form-row-2,
    .platform-grid{
        grid-template-columns:1fr;
    }

    .price{
        font-size:2.5rem;
    }

    .footer-grid{
        grid-template-columns:1fr;
    }

    .footer-bottom{
        flex-direction:column;
    }

    .brand{
        gap:12px;
    }

    .brand-logo{
        height:44px;
        max-width:190px;
    }
}

@media (max-width: 520px){
    .btn,
    .mobile-actions .btn{
        width:100%;
    }

    .search-shell{
        align-items:stretch;
    }

    .search-box{
        flex-basis:100%;
    }

    .math-row{
        flex-direction:column;
        align-items:stretch;
    }

    .math-row .btn{
        width:100%;
    }
}