:root{--ink:#172033;--muted:#667085;--brand:#3461ed;--brand-dark:#2249c9;--line:#e4e7ec;--surface:#fff;--bg:#f5f7fb;--warn:#b54708}*{box-sizing:border-box}body{margin:0;color:var(--ink);background:var(--bg);font:16px/1.55 Inter,"Segoe UI",Arial,sans-serif}.site{min-height:100vh;display:flex;flex-direction:column}.container{width:min(1120px,calc(100% - 64px));margin:auto}header{background:#fff;border-bottom:1px solid var(--line)}.nav{height:104px;display:flex;align-items:center;justify-content:space-between}.logo{display:flex;align-items:center;gap:12px;color:var(--brand);font-size:26px;font-weight:800;text-decoration:none}.logoMark{display:grid;place-items:center;width:50px;height:50px;border-radius:14px;background:var(--brand);color:#fff}.navLinks{display:flex;gap:28px}.navLinks a{padding:8px 0;color:#475467;font-size:17px;font-weight:650;text-decoration:none}.navLinks a:hover{color:var(--brand)}main{flex:1;padding:72px 0}footer{padding:24px 0;border-top:1px solid var(--line);background:#fff;color:var(--muted);text-align:center}.eyebrow{margin:0 0 18px;color:var(--brand);font-size:14px;font-weight:800;letter-spacing:.08em}.sectionTitle{margin:0;font-size:56px;line-height:1.1;letter-spacing:-.04em}.sectionSub{margin:8px 0 38px;color:#63718a;font-size:23px}.homeHero{padding:25px 0 74px}.productGrid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px}.productCard{display:flex;min-height:575px;flex-direction:column;padding:30px;border:1px solid var(--line);border-radius:22px;background:#fff;color:var(--ink);box-shadow:0 12px 30px rgba(16,24,40,.05);text-decoration:none}.productCard.featured{border:3px solid var(--brand);padding:28px}.productCard h2{margin:0 0 20px;font-size:22px}.productCard p{margin:0 0 20px}.productCard ul{margin:0 0 20px;padding-left:25px;color:#65728c}.productCard b{color:var(--brand);margin-top:auto}.productCard .btn{align-self:flex-start;margin-top:28px}.page-head{margin-bottom:38px}.card{margin-bottom:28px;padding:36px;border:1px solid var(--line);border-radius:22px;background:var(--surface);box-shadow:0 12px 30px rgba(16,24,40,.05)}.stepCard h2{margin:0 0 24px;font-size:24px}.fileField,.field,.layoutFields input,.layoutFields select{width:100%;min-height:62px;padding:14px 18px;border:1px solid #d0d5dd;border-radius:12px;background:#fff;font:inherit}.hint,.status{color:#63718a}.layoutFields{display:grid;grid-template-columns:repeat(3,1fr);gap:26px}.layoutFields label{display:grid;gap:10px;font-weight:750}.btn,.button,button{display:inline-flex;align-items:center;justify-content:center;min-height:56px;padding:13px 30px;border:0;border-radius:12px;background:var(--brand);color:#fff;font:700 17px Inter,"Segoe UI",Arial,sans-serif;text-decoration:none;cursor:pointer}.btn:hover,button:hover{background:var(--brand-dark)}.btn:disabled,button:disabled{opacity:.55;cursor:not-allowed}.secondary{border:1px solid #d0d5dd;background:#fff;color:#344054}.toolbar{display:flex;gap:12px;flex-wrap:wrap;margin:0 0 28px}.toolbar button{min-height:48px;padding:9px 19px}.emptyColumns{min-height:170px;padding:45px 12px;color:#63718a}.columnList{display:grid;grid-template-columns:repeat(2,1fr);gap:10px;max-height:350px;overflow:auto}.columnOption{display:flex;align-items:center;gap:9px;padding:10px 12px;border:1px solid #eaecf0;border-radius:10px}.columnOption small{margin-left:auto;color:var(--warn)}.actionBar,.paidAction{display:flex;align-items:center;gap:20px}.actionBar p,.paidAction p{margin:0}.premiumBox{margin:0 0 36px;padding:38px;border:3px solid var(--brand);border-radius:24px}.premiumBox h2{margin:0 0 24px;font-size:24px}.premiumBox li{margin:7px 0;color:#65728c}.aboutCard h2{font-size:25px}.aboutCard p{font-size:18px}.result{max-width:820px;margin:auto}@media(max-width:900px){.container{width:min(100% - 32px,1120px)}.nav{height:auto;min-height:86px;align-items:flex-start;flex-direction:column;padding:18px 0}.navLinks{width:100%;gap:16px;overflow:auto;white-space:nowrap}.productGrid{grid-template-columns:repeat(2,1fr)}.layoutFields{grid-template-columns:1fr}.sectionTitle{font-size:44px}}@media(max-width:560px){main{padding:36px 0}.productGrid{grid-template-columns:1fr}.sectionTitle{font-size:38px}.sectionSub{font-size:19px}.card{padding:24px}.actionBar,.paidAction{align-items:flex-start;flex-direction:column}.columnList{grid-template-columns:1fr}}/* ===== LOADING SPINNER ===== */
.spinner-overlay {
    display: none;
    position: relative;
}
.spinner-overlay.active {
    display: inline-block;
}
.spinner {
    border: 3px solid rgba(0,0,0,0.1);
    border-radius: 50%;
    border-top: 3px solid #2563eb;
    width: 24px;
    height: 24px;
    animation: spin 0.8s linear infinite;
    display: inline-block;
    vertical-align: middle;
    margin-right: 8px;
}
@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}