/* ==========================================================================
   EventTitans Knowledge Base / Help Center
   Self-contained styles for the KB content area. Namespaced with .kb- so it
   never collides with the site's global bootstrap / eventtitans.css.
   Brand tokens taken from the EventTitans design system.
   ========================================================================== */

:root {
    --kb-blue: #4c699e;
    --kb-darkblue: #002c62;
    --kb-indigo: #1446a3;
    --kb-lightblue: #4470ec;
    --kb-ink: #16233d;
    --kb-body: #3f4b60;
    --kb-muted: #6b7794;
    --kb-line: #e5e9f2;
    --kb-bg: #f5f7fb;
    --kb-card: #ffffff;
    --kb-green: #1fa49a;
    --kb-amber: #f0a13a;
    --kb-radius: 16px;
    --kb-radius-sm: 10px;
    --kb-shadow: 0 1px 2px rgba(16, 34, 71, .04), 0 10px 30px rgba(16, 34, 71, .06);
    --kb-shadow-hover: 0 6px 14px rgba(16, 34, 71, .08), 0 18px 46px rgba(16, 34, 71, .12);
    --kb-maxw: 1180px;
}

.kb {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    color: var(--kb-body);
    background: var(--kb-bg);
    -webkit-font-smoothing: antialiased;
    line-height: 1.65;
}
.kb *, .kb *::before, .kb *::after { box-sizing: border-box; }
.kb img { max-width: 100%; }
.kb a { color: var(--kb-indigo); text-decoration: none; transition: color .15s ease; }
.kb a:hover { color: var(--kb-lightblue); }
.kb__wrap { max-width: var(--kb-maxw); margin: 0 auto; padding: 0 20px; }

/* ------------------------------ Hero ------------------------------------ */
.kb-hero {
    position: relative;
    padding: 62px 20px 120px;
    background:
        radial-gradient(1200px 400px at 85% -10%, rgba(68, 112, 236, .35), transparent 60%),
        radial-gradient(900px 360px at 5% 0%, rgba(31, 164, 154, .25), transparent 55%),
        linear-gradient(135deg, #06214d 0%, #0b2f6b 45%, #17408f 100%);
    color: #fff;
    text-align: center;
    overflow: hidden;
}
.kb-hero::after {
    content: "";
    position: absolute; left: 0; right: 0; bottom: -1px; height: 70px;
    background: var(--kb-bg);
    -webkit-mask: radial-gradient(60% 70px at 50% 0, transparent 68%, #000 70%);
            mask: radial-gradient(60% 70px at 50% 0, transparent 68%, #000 70%);
}
.kb-hero__inner { position: relative; z-index: 2; max-width: 820px; margin: 0 auto; }
.kb-hero__eyebrow {
    display: inline-flex; align-items: center; gap: 8px;
    font-size: 12.5px; font-weight: 700; letter-spacing: .12em; text-transform: uppercase;
    color: #bcd3ff; background: rgba(255, 255, 255, .08);
    border: 1px solid rgba(255, 255, 255, .16);
    padding: 6px 14px; border-radius: 999px; margin-bottom: 18px;
}
.kb-hero h1 {
    margin: 0 0 12px; font-size: clamp(28px, 4.4vw, 44px); font-weight: 800;
    line-height: 1.12; letter-spacing: -.02em; color: #fff;
}
.kb-hero p { margin: 0 auto; max-width: 620px; font-size: 17px; color: #d7e2f7; }

/* Search */
.kb-search {
    position: relative; max-width: 640px; margin: 26px auto 0;
}
.kb-search input {
    width: 100%; height: 62px; border: 0; border-radius: 14px;
    padding: 0 20px 0 56px; font-size: 16.5px; color: var(--kb-ink);
    background: #fff; box-shadow: 0 18px 50px rgba(3, 18, 46, .35);
    outline: none;
}
.kb-search input::placeholder { color: #9aa6bd; }
.kb-search .kb-search__icon {
    position: absolute; left: 20px; top: 50%; transform: translateY(-50%);
    width: 22px; height: 22px; opacity: .5; pointer-events: none;
}
.kb-search__hint { margin-top: 12px; font-size: 13px; color: #b9c9e6; }
.kb-search__hint a { color: #fff; border-bottom: 1px dashed rgba(255,255,255,.5); }

/* Live search results dropdown */
.kb-search__results {
    position: absolute; left: 0; right: 0; top: calc(100% + 10px);
    background: #fff; border-radius: 14px; box-shadow: var(--kb-shadow-hover);
    text-align: left; overflow: hidden; z-index: 30; display: none;
    max-height: 60vh; overflow-y: auto;
}
.kb-search__results.is-open { display: block; }
.kb-search__result {
    display: block; padding: 13px 18px; border-bottom: 1px solid var(--kb-line);
    color: var(--kb-ink);
}
.kb-search__result:last-child { border-bottom: 0; }
.kb-search__result:hover, .kb-search__result.is-active { background: #f3f6fd; }
.kb-search__result .kb-r-cat { display: block; font-size: 11.5px; font-weight: 700; letter-spacing: .06em; text-transform: uppercase; color: var(--kb-blue); margin-bottom: 2px; }
.kb-search__result .kb-r-title { font-size: 14.5px; color: var(--kb-ink); }
.kb-search__result .kb-r-type { float: right; font-size: 11px; font-weight: 700; color: var(--kb-muted); background: #eef2fa; border-radius: 6px; padding: 2px 8px; }
.kb-search__empty { padding: 18px; color: var(--kb-muted); font-size: 14px; text-align: center; }

/* --------------------------- Section shells ----------------------------- */
.kb-section { padding: 6px 0 56px; margin-top: -66px; position: relative; z-index: 3; }
.kb-section--flat { margin-top: 0; padding-top: 40px; }
.kb-sec-head { text-align: center; max-width: 680px; margin: 44px auto 26px; }
.kb-sec-head h2 { font-size: clamp(22px, 3vw, 30px); font-weight: 800; color: var(--kb-ink); letter-spacing: -.01em; margin: 0 0 8px; }
.kb-sec-head p { margin: 0; color: var(--kb-muted); font-size: 15.5px; }

/* --------------------------- Category grid ------------------------------ */
.kb-cats { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
@media (max-width: 980px) { .kb-cats { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 620px) { .kb-cats { grid-template-columns: 1fr; } }

.kb-cat {
    display: flex; flex-direction: column; gap: 6px;
    background: var(--kb-card); border: 1px solid var(--kb-line);
    border-radius: var(--kb-radius); padding: 24px 22px;
    box-shadow: var(--kb-shadow); transition: transform .18s ease, box-shadow .18s ease, border-color .18s ease;
}
.kb-cat:hover { transform: translateY(-4px); box-shadow: var(--kb-shadow-hover); border-color: #cfdcf5; }
.kb-cat__icon {
    width: 50px; height: 50px; border-radius: 13px; display: flex; align-items: center; justify-content: center;
    font-size: 24px; margin-bottom: 12px; color: #fff;
    background: linear-gradient(135deg, var(--kb-lightblue), var(--kb-indigo));
}
.kb-cat__icon svg { width: 26px; height: 26px; }
.kb-cat h3 { margin: 0 0 4px; font-size: 18px; font-weight: 700; color: var(--kb-ink); }
.kb-cat p { margin: 0 0 12px; font-size: 14px; color: var(--kb-muted); flex: 1; }
.kb-cat__meta { display: flex; align-items: center; gap: 12px; font-size: 12.5px; color: var(--kb-blue); font-weight: 600; }
.kb-cat__meta .kb-dot { width: 4px; height: 4px; border-radius: 50%; background: #c3cfe6; }
.kb-cat__more { margin-top: 4px; font-size: 13.5px; font-weight: 700; color: var(--kb-indigo); }
.kb-cat:hover .kb-cat__more { color: var(--kb-lightblue); }

/* icon color variants */
.kb-cat--a .kb-cat__icon { background: linear-gradient(135deg, #4470ec, #1446a3); }
.kb-cat--b .kb-cat__icon { background: linear-gradient(135deg, #1fa49a, #0f766e); }
.kb-cat--c .kb-cat__icon { background: linear-gradient(135deg, #f0a13a, #e0781a); }
.kb-cat--d .kb-cat__icon { background: linear-gradient(135deg, #8b5cf6, #6d28d9); }
.kb-cat--e .kb-cat__icon { background: linear-gradient(135deg, #ec4899, #be185d); }
.kb-cat--f .kb-cat__icon { background: linear-gradient(135deg, #0ea5e9, #0369a1); }
.kb-cat--g .kb-cat__icon { background: linear-gradient(135deg, #10b981, #047857); }
.kb-cat--h .kb-cat__icon { background: linear-gradient(135deg, #f43f5e, #be123c); }

/* --------------------------- Category page ------------------------------ */
.kb-cpage { padding: 0 0 64px; }
.kb-breadcrumb { font-size: 13px; color: #b9c9e6; margin-bottom: 14px; }
.kb-breadcrumb a { color: #e4ecfb; }
.kb-breadcrumb span { color: #fff; }

.kb-layout { display: grid; grid-template-columns: 264px 1fr; gap: 34px; align-items: start; }
@media (max-width: 900px) { .kb-layout { grid-template-columns: 1fr; } }

/* sidebar */
.kb-side { position: sticky; top: 18px; }
@media (max-width: 900px) { .kb-side { position: static; } }
.kb-side__card { background: var(--kb-card); border: 1px solid var(--kb-line); border-radius: var(--kb-radius); box-shadow: var(--kb-shadow); overflow: hidden; }
.kb-side__title { font-size: 12px; font-weight: 700; letter-spacing: .08em; text-transform: uppercase; color: var(--kb-muted); padding: 16px 18px 8px; }
.kb-side__list { list-style: none; margin: 0; padding: 0 8px 10px; }
.kb-side__list a {
    display: flex; align-items: center; gap: 10px; padding: 9px 12px; border-radius: 9px;
    font-size: 14px; color: var(--kb-body); font-weight: 500;
}
.kb-side__list a:hover { background: #f3f6fd; color: var(--kb-indigo); }
.kb-side__list a.is-current { background: #eef3ff; color: var(--kb-indigo); font-weight: 700; }
.kb-side__list a .kb-side__ic { width: 16px; height: 16px; opacity: .6; flex: none; }

/* main column */
.kb-main { min-width: 0; }
.kb-cpage__intro { background: var(--kb-card); border: 1px solid var(--kb-line); border-radius: var(--kb-radius); box-shadow: var(--kb-shadow); padding: 26px 28px; margin-bottom: 22px; }
.kb-cpage__intro h1 { margin: 0 0 8px; font-size: clamp(24px, 3.4vw, 32px); font-weight: 800; color: var(--kb-ink); letter-spacing: -.01em; }
.kb-cpage__intro p { margin: 0; color: var(--kb-body); font-size: 15.5px; }

/* segmented toggle: Guides / FAQs */
.kb-toggle { display: inline-flex; padding: 5px; background: #eaeffb; border-radius: 12px; gap: 4px; margin: 4px 0 26px; }
.kb-toggle button {
    border: 0; background: transparent; cursor: pointer;
    font-size: 14px; font-weight: 700; color: var(--kb-muted);
    padding: 9px 20px; border-radius: 9px; transition: all .15s ease;
    display: inline-flex; align-items: center; gap: 8px; font-family: inherit;
}
.kb-toggle button .kb-count { font-size: 12px; font-weight: 700; background: #d9e2f7; color: var(--kb-indigo); border-radius: 999px; padding: 1px 9px; }
.kb-toggle button.is-active { background: #fff; color: var(--kb-ink); box-shadow: 0 2px 8px rgba(16,34,71,.10); }
.kb-toggle button.is-active .kb-count { background: var(--kb-indigo); color: #fff; }

.kb-panel { display: none; }
.kb-panel.is-active { display: block; animation: kbfade .25s ease; }
@keyframes kbfade { from { opacity: 0; transform: translateY(6px); } to { opacity: 1; transform: none; } }

/* ------------------------------ Guides ---------------------------------- */
.kb-guide {
    background: var(--kb-card); border: 1px solid var(--kb-line); border-radius: var(--kb-radius);
    box-shadow: var(--kb-shadow); margin-bottom: 18px; overflow: hidden;
    scroll-margin-top: 90px;
}
.kb-guide__head {
    display: flex; align-items: flex-start; gap: 14px; padding: 20px 24px; cursor: pointer;
    user-select: none;
}
.kb-guide__num {
    flex: none; width: 34px; height: 34px; border-radius: 10px;
    background: linear-gradient(135deg, #4470ec, #1446a3); color: #fff;
    display: flex; align-items: center; justify-content: center; font-weight: 700; font-size: 14px;
}
.kb-guide__t { flex: 1; }
.kb-guide__t h3 { margin: 0; font-size: 17.5px; font-weight: 700; color: var(--kb-ink); line-height: 1.35; }
.kb-guide__t .kb-guide__sub { margin: 3px 0 0; font-size: 13.5px; color: var(--kb-muted); }
.kb-guide__chev { flex: none; width: 22px; height: 22px; color: #9aa6bd; transition: transform .2s ease; margin-top: 6px; }
.kb-guide.is-open .kb-guide__chev { transform: rotate(180deg); }
.kb-guide__body { display: none; padding: 0 24px 6px 72px; }
.kb-guide.is-open .kb-guide__body { display: block; }

.kb-steps { counter-reset: kbstep; list-style: none; margin: 0 0 18px; padding: 0; }
.kb-steps li {
    position: relative; counter-increment: kbstep; padding: 0 0 16px 40px; font-size: 15px; color: var(--kb-body);
}
.kb-steps li::before {
    content: counter(kbstep); position: absolute; left: 0; top: -2px;
    width: 26px; height: 26px; border-radius: 50%; background: #eef3ff; color: var(--kb-indigo);
    font-size: 12.5px; font-weight: 700; display: flex; align-items: center; justify-content: center;
    border: 1px solid #d9e4fb;
}
.kb-steps li::after {
    content: ""; position: absolute; left: 13px; top: 26px; bottom: 2px; width: 2px; background: #e6ecf9;
}
.kb-steps li:last-child { padding-bottom: 2px; }
.kb-steps li:last-child::after { display: none; }
.kb-steps strong { color: var(--kb-ink); font-weight: 600; }
.kb-steps code, .kb-faq__a code, .kb-callout code {
    background: #eef2fa; color: #1c3a73; padding: 1px 6px; border-radius: 5px; font-size: 13px;
    font-family: "SFMono-Regular", Consolas, "Liberation Mono", Menlo, monospace;
}

.kb-callout {
    display: flex; gap: 10px; align-items: flex-start;
    background: #fff8ec; border: 1px solid #f5e2bd; border-left: 3px solid var(--kb-amber);
    border-radius: 10px; padding: 12px 15px; margin: 0 0 18px; font-size: 14px; color: #7a5a1e;
}
.kb-callout svg { flex: none; width: 18px; height: 18px; margin-top: 1px; color: var(--kb-amber); }
.kb-callout--tip { background: #eefaf7; border-color: #bfe8e1; border-left-color: var(--kb-green); color: #12645c; }
.kb-callout--tip svg { color: var(--kb-green); }

/* ------------------------------- FAQs ----------------------------------- */
.kb-faq {
    background: var(--kb-card); border: 1px solid var(--kb-line); border-radius: 12px;
    box-shadow: var(--kb-shadow); margin-bottom: 12px; overflow: hidden; scroll-margin-top: 90px;
}
.kb-faq__q {
    display: flex; align-items: center; gap: 14px; width: 100%; text-align: left;
    background: transparent; border: 0; cursor: pointer; padding: 18px 22px;
    font-size: 16px; font-weight: 600; color: var(--kb-ink); font-family: inherit; line-height: 1.45;
}
.kb-faq__q .kb-faq__plus { flex: none; width: 22px; height: 22px; position: relative; }
.kb-faq__q .kb-faq__plus::before, .kb-faq__q .kb-faq__plus::after {
    content: ""; position: absolute; background: var(--kb-blue); border-radius: 2px;
    transition: transform .2s ease, opacity .2s ease;
}
.kb-faq__q .kb-faq__plus::before { left: 10px; top: 3px; width: 2px; height: 16px; }
.kb-faq__q .kb-faq__plus::after { left: 3px; top: 10px; width: 16px; height: 2px; }
.kb-faq.is-open .kb-faq__plus::before { transform: rotate(90deg); opacity: 0; }
.kb-faq__q > span:first-child { flex: 1; }
.kb-faq__a { display: none; padding: 0 22px 20px 58px; font-size: 15px; color: var(--kb-body); }
.kb-faq.is-open .kb-faq__a { display: block; animation: kbfade .2s ease; }
.kb-faq__a p { margin: 0 0 10px; }
.kb-faq__a p:last-child { margin-bottom: 0; }
.kb-faq__a strong { color: var(--kb-ink); }

/* empty state when filtering */
.kb-noresults { display: none; text-align: center; padding: 40px 20px; color: var(--kb-muted); }
.kb-noresults.is-shown { display: block; }

/* --------------------------- CTA / footer band -------------------------- */
.kb-cta {
    background: linear-gradient(135deg, #06214d 0%, #123a86 100%); border-radius: 20px;
    color: #fff; text-align: center; padding: 44px 30px; margin: 20px 0 0;
    box-shadow: var(--kb-shadow);
}
.kb-cta h2 { color: #fff; margin: 0 0 8px; font-size: 26px; font-weight: 800; }
.kb-cta p { color: #cdd9f0; margin: 0 auto 22px; max-width: 520px; font-size: 15.5px; }
.kb-cta__btns { display: flex; gap: 12px; justify-content: center; flex-wrap: wrap; }
.kb-btn {
    display: inline-flex; align-items: center; gap: 9px; font-weight: 700; font-size: 15px;
    padding: 13px 26px; border-radius: 12px; transition: transform .15s ease, box-shadow .15s ease; cursor: pointer; border: 0;
}
.kb-btn--primary { background: #fff; color: var(--kb-darkblue); }
.kb-btn--primary:hover { transform: translateY(-2px); box-shadow: 0 12px 26px rgba(0,0,0,.25); color: var(--kb-darkblue); }
.kb-btn--ghost { background: rgba(255,255,255,.1); color: #fff; border: 1px solid rgba(255,255,255,.28); }
.kb-btn--ghost:hover { background: rgba(255,255,255,.18); color: #fff; }

/* related links row on category pages */
.kb-related { margin-top: 34px; }
.kb-related h2 { font-size: 20px; font-weight: 800; color: var(--kb-ink); margin: 0 0 16px; }
.kb-related__grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 14px; }
@media (max-width: 760px) { .kb-related__grid { grid-template-columns: 1fr; } }
.kb-related__grid a {
    display: block; background: var(--kb-card); border: 1px solid var(--kb-line); border-radius: 12px;
    padding: 16px 18px; box-shadow: var(--kb-shadow); color: var(--kb-ink); font-weight: 600; font-size: 14.5px;
    transition: transform .15s ease, box-shadow .15s ease;
}
.kb-related__grid a:hover { transform: translateY(-3px); box-shadow: var(--kb-shadow-hover); color: var(--kb-indigo); }
.kb-related__grid a small { display: block; font-weight: 500; color: var(--kb-muted); font-size: 12.5px; margin-top: 3px; }

/* popular chips on hub */
.kb-popular { display: flex; flex-wrap: wrap; gap: 10px; justify-content: center; margin-top: 8px; }
.kb-popular a {
    background: #fff; border: 1px solid var(--kb-line); border-radius: 999px; padding: 8px 16px;
    font-size: 13.5px; font-weight: 600; color: var(--kb-body); box-shadow: var(--kb-shadow);
}
.kb-popular a:hover { color: var(--kb-indigo); border-color: #cddbf7; }

/* utility */
.kb-hide { display: none !important; }