:root{--ktt-brand:#bf9000;--ktt-navy:#15264b;--ktt-line:#e3e8f0;--ktt-muted:#6b7689;--ktt-bg:#f4f6fb;--ktt-ink:#1b2333}
body{font-family:"Segoe UI",Roboto,Arial,sans-serif;color:var(--ktt-ink);background:var(--ktt-bg);line-height:1.55}
a{color:var(--ktt-navy)}
.ktt-btn{display:inline-block;border:0;border-radius:10px;padding:10px 18px;font-weight:700;font-size:14px;cursor:pointer;transition:.15s}
.ktt-btn-lg{padding:13px 26px;font-size:15px}
.ktt-btn-block{display:block;width:100%;text-align:center;margin-top:6px}
.ktt-btn-gold{background:var(--ktt-brand);color:#fff}.ktt-btn-gold:hover{filter:brightness(1.08)}
.ktt-btn-navy{background:var(--ktt-navy);color:#fff}
.ktt-btn-ghost{background:#fff;color:var(--ktt-navy);border:1px solid var(--ktt-line)}
.ktt-btn-ghost-light{background:transparent;color:#fff;border:1px solid #ffffff66}
/* header */
.ktt-header{background:#fff;border-bottom:1px solid var(--ktt-line);position:sticky;top:0;z-index:50;box-shadow:0 1px 8px rgba(20,30,60,.05)}
.ktt-header-in{max-width:1160px;margin:0 auto;display:flex;align-items:center;gap:16px;padding:12px 18px}
.ktt-logo img{max-height:54px;width:auto}
.ktt-logo-text{font-weight:800;font-size:20px;color:var(--ktt-navy)}
.ktt-nav{flex:1}
.ktt-menu{display:flex;gap:8px;list-style:none;margin:0;padding:0;flex-wrap:wrap}
.ktt-menu a{display:block;padding:8px 12px;border-radius:8px;color:var(--ktt-navy);font-weight:600;font-size:14px}
.ktt-menu a:hover{background:#eef2fb}
.ktt-header-cta{display:flex;gap:8px}
/* hero */
.ktt-hero{background:linear-gradient(120deg,var(--ktt-navy),#243f78);color:#fff;background-size:cover;background-position:center}
.ktt-hero-in{max-width:1160px;margin:0 auto;padding:70px 18px}
.ktt-hero h1{font-size:42px;margin:0 0 10px;line-height:1.1}
.ktt-hero p{font-size:18px;max-width:640px;opacity:.92;margin:0 0 22px}
.ktt-hero-cta{display:flex;gap:12px;flex-wrap:wrap}
@media(max-width:640px){.ktt-hero h1{font-size:31px}}
/* auth */
.ktt-auth{max-width:1000px;margin:-44px auto 0;padding:0 18px 10px;position:relative;z-index:5}
.ktt-auth-grid{display:grid;grid-template-columns:1fr 1fr;gap:18px}
@media(max-width:760px){.ktt-auth-grid{grid-template-columns:1fr}}
.ktt-card{background:#fff;border:1px solid var(--ktt-line);border-radius:16px;padding:24px;box-shadow:0 10px 34px rgba(20,30,60,.10)}
.ktt-card h2{color:var(--ktt-navy);margin:0 0 4px;font-size:21px}
.ktt-muted{color:var(--ktt-muted);font-size:14px}
.ktt-form label{display:block;font-size:13px;color:var(--ktt-muted);font-weight:600;margin:12px 0 4px}
.ktt-form input{width:100%;padding:11px 12px;border:1px solid var(--ktt-line);border-radius:10px;font-size:15px}
.ktt-form input:focus{outline:none;border-color:var(--ktt-navy)}
.ktt-hp{position:absolute;left:-9999px;height:0;overflow:hidden}
.ktt-note{padding:9px 12px;border-radius:9px;font-size:13px;margin:10px 0;font-weight:600}
.ktt-note-err{background:#fde2e2;color:#9d2b2b}
.ktt-note-ok{background:#e2efda;color:#1f6e3b}
/* features */
.ktt-features{max-width:1160px;margin:40px auto;padding:0 18px}
.ktt-feat-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
@media(max-width:760px){.ktt-feat-grid{grid-template-columns:1fr}}
.ktt-feat{background:#fff;border:1px solid var(--ktt-line);border-radius:14px;padding:20px;text-align:center}
.ktt-feat-ic{font-size:34px}
.ktt-feat h3{color:var(--ktt-navy);margin:8px 0 6px}
/* content */
.ktt-container{max-width:860px;margin:30px auto;padding:0 18px}
.ktt-wide{max-width:1160px;margin:24px auto;padding:0 14px}
.ktt-page-title{color:var(--ktt-navy)}
.ktt-content{font-size:16px}
/* footer */
.ktt-footer{background:var(--ktt-navy);color:#dfe6f5;margin-top:50px}
.ktt-footer-in{max-width:1160px;margin:0 auto;padding:34px 18px;display:flex;justify-content:space-between;gap:24px;flex-wrap:wrap}
.ktt-foot-brand{font-weight:800;font-size:18px;color:#fff}
.ktt-foot-menu{list-style:none;margin:0;padding:0}
.ktt-foot-menu a{color:#dfe6f5}
.ktt-foot-muted{color:#aab6d6;font-size:13px}
.ktt-foot-bottom{border-top:1px solid #ffffff1f;text-align:center;padding:14px;font-size:13px;color:#aab6d6}