/**
 * Xeosol Blog — hub, tag lists, and article pages (scoped under .xeosol-blog)
 */

.xeosol-blog {
    --xeo-navy: #07182F;
    --xeo-navy-mid: #0E2342;
    --xeo-orange: #F5A623;
    --xeo-orange-dark: #e09410;
    --xeo-surface: #F5F7FB;
    --xeo-text: #0f1a2e;
    --xeo-muted: #5a6778;
    --xeo-border: rgba(15, 26, 46, 0.08);
    --xeo-shadow: 0 8px 32px rgba(7, 24, 47, 0.08);
    --xeo-shadow-lg: 0 20px 48px rgba(7, 24, 47, 0.12);
    --xeo-radius: 12px;
    --xeo-radius-lg: 16px;
    --xeo-site-header-h: 118px;
    --xb-max: 1120px;
    overflow-x: hidden;
}

.xeosol-blog * { box-sizing: border-box; }

html:has(.xeosol-blog) { scroll-behavior: smooth; }

.page-wrapper:has(.xeosol-blog) .main-footer { margin-top: 0; }

.page-wrapper:has(.xeosol-blog) .main-header.header-style-four .header-lower {
    background: transparent;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}
.page-wrapper:has(.xeosol-blog) .main-header.header-style-four .main-menu .navigation > li > a {
    color: rgba(255, 255, 255, 0.88);
}
.page-wrapper:has(.xeosol-blog) .main-header.header-style-four .main-menu .navigation > li.current > a,
.page-wrapper:has(.xeosol-blog) .main-header.header-style-four .main-menu .navigation > li > a:hover {
    color: var(--xeo-orange);
}
.page-wrapper:has(.xeosol-blog:not(.xeosol-blog--past-hero)) .main-header .site-logo--light,
.page-wrapper:has(.xeosol-blog:not(.xeosol-blog--past-hero)) .sticky-header .site-logo--light { display: block; }
.page-wrapper:has(.xeosol-blog:not(.xeosol-blog--past-hero)) .main-header .site-logo--dark,
.page-wrapper:has(.xeosol-blog:not(.xeosol-blog--past-hero)) .sticky-header .site-logo--dark { display: none; }
.page-wrapper:has(.xeosol-blog) .sticky-header.fixed-header {
    background: rgba(7, 24, 47, 0.98);
    backdrop-filter: blur(12px);
}

.page-wrapper:has(.xeosol-blog--past-hero) .main-header.header-style-four .header-lower {
    background: rgba(255, 255, 255, 0.98);
    border-bottom: 1px solid var(--xeo-border);
}
.page-wrapper:has(.xeosol-blog--past-hero) .main-header .site-logo--light,
.page-wrapper:has(.xeosol-blog--past-hero) .sticky-header .site-logo--light { display: none; }
.page-wrapper:has(.xeosol-blog--past-hero) .main-header .site-logo--dark,
.page-wrapper:has(.xeosol-blog--past-hero) .sticky-header .site-logo--dark { display: block; }
.page-wrapper:has(.xeosol-blog--past-hero) .main-header.header-style-four .main-menu .navigation > li > a,
.page-wrapper:has(.xeosol-blog--past-hero) .sticky-header.fixed-header .main-menu .navigation > li > a {
    color: var(--xeo-text);
}
.page-wrapper:has(.xeosol-blog--past-hero) .main-header.header-style-four .main-menu .navigation > li.current > a,
.page-wrapper:has(.xeosol-blog--past-hero) .main-header.header-style-four .main-menu .navigation > li > a:hover,
.page-wrapper:has(.xeosol-blog--past-hero) .sticky-header.fixed-header .main-menu .navigation > li.current > a,
.page-wrapper:has(.xeosol-blog--past-hero) .sticky-header.fixed-header .main-menu .navigation > li > a:hover {
    color: var(--xeo-orange-dark);
}
.page-wrapper:has(.xeosol-blog--past-hero) .sticky-header.fixed-header {
    background: rgba(255, 255, 255, 0.98);
    box-shadow: 0 1px 0 var(--xeo-border);
}

.xb-shell {
    width: 100%;
    max-width: var(--xb-max);
    margin: 0 auto;
    padding: 0 24px;
}

.xb-heading {
    font-size: clamp(1.75rem, 3vw, 2.5rem);
    font-weight: 700;
    line-height: 1.2;
    letter-spacing: -0.02em;
    color: var(--xeo-text);
    margin: 0 0 16px;
}

.xb-lead {
    font-size: 1.05rem;
    line-height: 1.65;
    color: var(--xeo-muted);
    margin: 0;
}

.xb-lead--light { color: rgba(255, 255, 255, 0.72); }

.xb-eyebrow {
    display: inline-block;
    font-size: 12px;
    font-weight: 700;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    color: var(--xeo-orange);
    margin-bottom: 14px;
}

.xb-section-head {
    text-align: center;
    max-width: 720px;
    margin: 0 auto 48px;
}

.xb-reveal {
    opacity: 0;
    transform: translateY(20px);
    transition: opacity 0.55s ease, transform 0.55s ease;
}
.xb-reveal.is-visible { opacity: 1; transform: none; }

.xb-btn-primary {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    padding: 14px 28px;
    border-radius: 10px;
    background: linear-gradient(135deg, var(--xeo-orange) 0%, var(--xeo-orange-dark) 100%);
    color: var(--xeo-navy);
    font-size: 14px;
    font-weight: 700;
    text-decoration: none;
    transition: transform 0.2s ease, box-shadow 0.2s ease;
}
.xb-btn-primary:hover {
    color: var(--xeo-navy);
    text-decoration: none;
    transform: translateY(-1px);
    box-shadow: 0 8px 24px rgba(245, 166, 35, 0.35);
}

.xb-btn-ghost {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 14px 24px;
    border-radius: 10px;
    border: 1px solid rgba(255, 255, 255, 0.25);
    color: #fff;
    font-size: 14px;
    font-weight: 600;
    text-decoration: none;
    transition: border-color 0.2s ease, background 0.2s ease;
}
.xb-btn-ghost:hover {
    color: #fff;
    text-decoration: none;
    border-color: rgba(245, 166, 35, 0.5);
    background: rgba(245, 166, 35, 0.08);
}

.xb-btn-ghost--dark {
    border-color: rgba(15, 26, 46, 0.15);
    color: var(--xeo-text);
}
.xb-btn-ghost--dark:hover {
    color: var(--xeo-text);
    border-color: rgba(245, 166, 35, 0.45);
    background: rgba(245, 166, 35, 0.06);
}

/* Hero */
.xb-hero {
    position: relative;
    padding: calc(var(--xeo-site-header-h) + 48px) 0 88px;
    color: #fff;
    overflow: hidden;
    isolation: isolate;
    background:
        linear-gradient(180deg, rgba(147, 197, 253, 0.06) 0%, transparent 38%),
        radial-gradient(ellipse 54% 58% at 78% 44%, rgba(59, 154, 230, 0.22) 0%, transparent 62%),
        radial-gradient(ellipse 46% 42% at 10% 88%, rgba(245, 166, 35, 0.08) 0%, transparent 55%),
        linear-gradient(168deg, #040810 0%, #07182f 48%, #0e2342 100%);
}

.xb-hero__orb {
    position: absolute;
    border-radius: 50%;
    filter: blur(90px);
    pointer-events: none;
    z-index: 0;
    animation: xb-float 8s ease-in-out infinite;
}
.xb-hero__orb--1 { width: 400px; height: 400px; background: rgba(59, 154, 230, 0.22); top: -6%; right: -4%; }
.xb-hero__orb--2 { width: 280px; height: 280px; background: rgba(245, 166, 35, 0.1); bottom: 8%; left: -6%; animation-delay: -3s; }

@keyframes xb-float {
    0%, 100% { transform: translate(0, 0) scale(1); }
    50% { transform: translate(18px, -22px) scale(1.04); }
}

.xb-hero__inner { position: relative; z-index: 2; max-width: 820px; }

.xb-hero__badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 6px 14px;
    border-radius: 100px;
    background: rgba(255, 255, 255, 0.04);
    border: 1px solid rgba(255, 255, 255, 0.1);
    font-size: 11px;
    font-weight: 600;
    letter-spacing: 0.06em;
    text-transform: uppercase;
    color: rgba(255, 255, 255, 0.55);
    margin-bottom: 28px;
}

.xb-hero__badge-dot {
    width: 6px; height: 6px; border-radius: 50%;
    background: var(--xeo-orange);
    box-shadow: 0 0 8px rgba(245, 166, 35, 0.55);
}

.xeosol-blog .xb-hero .xb-hero__title {
    font-size: clamp(2rem, 4.2vw, 3.25rem);
    font-weight: 700;
    line-height: 1.12;
    letter-spacing: -0.03em;
    margin: 0 0 18px;
    color: #fff;
}

.xeosol-blog .xb-hero .xb-hero__title em {
    font-style: normal;
    color: var(--xeo-orange);
}

.xb-hero__meta {
    display: flex;
    flex-wrap: wrap;
    gap: 16px;
    align-items: center;
    font-size: 14px;
    color: rgba(255, 255, 255, 0.62);
    margin-top: 8px;
}

.xb-hero__meta span {
    display: inline-flex;
    align-items: center;
    gap: 8px;
}

.xb-hero__meta i { color: var(--xeo-orange); }

.xb-hero__actions { display: flex; flex-wrap: wrap; gap: 14px; margin-top: 28px; }

.xb-hero--detail {
    padding-bottom: 64px;
    background:
        linear-gradient(180deg, rgba(7, 24, 47, 0.82) 0%, rgba(7, 24, 47, 0.94) 100%),
        var(--xb-hero-image, linear-gradient(168deg, #040810 0%, #07182f 48%, #0e2342 100%));
    background-size: cover;
    background-position: center;
}

.xb-hero--detail .xb-hero__inner { max-width: 900px; }

.xb-crumbs {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    align-items: center;
    margin-bottom: 20px;
    font-size: 13px;
    color: rgba(255, 255, 255, 0.45);
}
.xb-crumbs a { color: rgba(255, 255, 255, 0.65); text-decoration: none; }
.xb-crumbs a:hover { color: var(--xeo-orange); }

/* Filters */
.xb-filters {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    justify-content: center;
    margin-bottom: 40px;
}

.xb-filters a {
    padding: 10px 20px;
    border-radius: 100px;
    font-size: 13px;
    font-weight: 600;
    text-decoration: none;
    color: var(--xeo-muted);
    border: 1px solid var(--xeo-border);
    background: #fff;
    transition: all 0.2s ease;
}
.xb-filters a:hover,
.xb-filters a.is-active {
    color: var(--xeo-navy);
    border-color: rgba(245, 166, 35, 0.45);
    background: rgba(245, 166, 35, 0.08);
}

/* Grid */
.xb-grid-section {
    padding: 72px 0 88px;
    background: var(--xeo-surface);
}

.xb-grid-section--alt { background: #fff; }

.xb-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 28px;
}

/* Card */
.xb-card {
    display: flex;
    flex-direction: column;
    height: 100%;
    border-radius: var(--xeo-radius-lg);
    background: #fff;
    border: 1px solid var(--xeo-border);
    box-shadow: var(--xeo-shadow);
    text-decoration: none;
    color: inherit;
    overflow: hidden;
    transition: transform 0.25s ease, box-shadow 0.25s ease;
}

.xb-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--xeo-shadow-lg);
    text-decoration: none;
    color: inherit;
}

.xb-card__media {
    position: relative;
    aspect-ratio: 16 / 10;
    overflow: hidden;
    background: var(--xeo-navy);
}

.xb-card__media img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.4s ease;
}

.xb-card:hover .xb-card__media img { transform: scale(1.04); }

.xb-card__date {
    position: absolute;
    top: 14px;
    left: 14px;
    padding: 8px 12px;
    border-radius: 8px;
    background: rgba(7, 24, 47, 0.88);
    color: #fff;
    font-size: 12px;
    font-weight: 700;
    line-height: 1.2;
    text-align: center;
}

.xb-card__body {
    display: flex;
    flex-direction: column;
    flex: 1;
    padding: 22px 22px 20px;
}

.xb-card__tag {
    display: inline-block;
    font-size: 11px;
    font-weight: 700;
    letter-spacing: 0.06em;
    text-transform: uppercase;
    color: var(--xeo-orange-dark);
    margin-bottom: 10px;
}

.xb-card__body h3 {
    font-size: 1.1rem;
    font-weight: 700;
    line-height: 1.35;
    color: var(--xeo-text);
    margin: 0 0 12px;
}

.xb-card__excerpt {
    font-size: 0.92rem;
    line-height: 1.55;
    color: var(--xeo-muted);
    margin: 0 0 16px;
    display: -webkit-box;
    -webkit-line-clamp: 3;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.xb-card__foot {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    margin-top: auto;
    padding-top: 14px;
    border-top: 1px solid var(--xeo-border);
    font-size: 13px;
}

.xb-card__author {
    color: var(--xeo-muted);
    display: inline-flex;
    align-items: center;
    gap: 6px;
}

.xb-card__link {
    font-weight: 700;
    color: var(--xeo-navy);
    display: inline-flex;
    align-items: center;
    gap: 6px;
}

.xb-card:hover .xb-card__link { color: var(--xeo-orange-dark); }

/* Article layout */
.xb-article-section {
    padding: 56px 0 88px;
    background: #fff;
}

.xb-article-layout {
    display: grid;
    grid-template-columns: minmax(0, 1fr) 320px;
    gap: 40px;
    align-items: start;
}

.xb-article__body {
    min-width: 0;
    font-size: 1.02rem;
    line-height: 1.75;
    color: var(--xeo-text);
}

.xb-article__body h3,
.xb-article__body h4,
.xb-article__body h5 {
    color: var(--xeo-navy);
    font-weight: 700;
    line-height: 1.3;
    margin: 2em 0 0.75em;
}

.xb-article__body h3 { font-size: 1.45rem; }
.xb-article__body h4 { font-size: 1.2rem; }
.xb-article__body h5 { font-size: 1.05rem; }

.xb-article__body p { margin: 0 0 1.1em; }

.xb-article__body ul,
.xb-article__body ol {
    margin: 0 0 1.25em;
    padding-left: 1.4em;
}

.xb-article__body li { margin-bottom: 0.45em; }

.xb-article__body a {
    color: var(--xeo-orange-dark);
    font-weight: 600;
    text-decoration: underline;
    text-underline-offset: 2px;
}

.xb-article__body a:hover { color: var(--xeo-navy); }

.xb-article__body .text-yellow,
.xb-article__body em strong { color: var(--xeo-orange-dark); }

.xb-article__body figure,
.xb-article__body img {
    max-width: 100%;
    height: auto;
    border-radius: var(--xeo-radius);
}

.xb-article__body table {
    width: 100%;
    border-collapse: collapse;
    margin: 1.5em 0;
    font-size: 0.95rem;
}

.xb-article__body table th,
.xb-article__body table td {
    border: 1px solid var(--xeo-border);
    padding: 12px 14px;
    text-align: left;
    vertical-align: top;
}

.xb-article__body table th {
    background: var(--xeo-surface);
    color: var(--xeo-navy);
    font-weight: 700;
}

/* Table of contents */
.xb-toc {
    margin: 0 0 2em;
    padding: 20px 22px;
    border-radius: var(--xeo-radius);
    background: var(--xeo-surface);
    border: 1px solid var(--xeo-border);
}

.xb-toc h4 {
    margin: 0 0 14px;
    font-size: 1rem;
    font-weight: 700;
    color: var(--xeo-navy);
}

.xb-toc ul {
    list-style: none;
    margin: 0;
    padding: 0;
    max-height: 360px;
    overflow: auto;
}

.xb-toc li { margin: 0; }

.xb-toc a {
    display: block;
    padding: 8px 0;
    color: var(--xeo-text);
    text-decoration: none;
    font-size: 0.95rem;
    border-bottom: 1px solid var(--xeo-border);
}

.xb-toc a:hover { color: var(--xeo-orange-dark); }

.xb-toc .accordion-box { list-style: none; margin: 0; padding: 0; }

.xb-toc .acc-btn,
.xb-toc a .acc-btn {
    display: block;
    padding: 8px 0;
    color: var(--xeo-text);
    font-weight: 600;
}

.xb-toc .acc-content { padding-left: 12px; }

.xb-article__body .content-article { margin: 0; }

.xb-sidebar {
    position: sticky;
    top: calc(var(--xeo-site-header-h) + 24px);
    display: flex;
    flex-direction: column;
    gap: 24px;
}

.xb-sidebar__panel {
    padding: 22px;
    border-radius: var(--xeo-radius-lg);
    background: var(--xeo-surface);
    border: 1px solid var(--xeo-border);
}

.xb-sidebar__panel h3 {
    font-size: 1rem;
    font-weight: 700;
    color: var(--xeo-navy);
    margin: 0 0 16px;
}

.xb-sidebar__posts { list-style: none; margin: 0; padding: 0; }

.xb-sidebar__posts li + li { margin-top: 14px; }

.xb-sidebar__posts a {
    display: grid;
    grid-template-columns: 64px 1fr;
    gap: 12px;
    align-items: center;
    text-decoration: none;
    color: var(--xeo-text);
}

.xb-sidebar__posts a:hover h4 { color: var(--xeo-orange-dark); }

.xb-sidebar__posts img {
    width: 64px;
    height: 64px;
    object-fit: cover;
    border-radius: 8px;
}

.xb-sidebar__posts h4 {
    font-size: 0.9rem;
    font-weight: 600;
    line-height: 1.35;
    margin: 0;
}

.xb-sidebar__cta {
    text-align: center;
}

.xb-sidebar__cta p {
    font-size: 0.95rem;
    color: var(--xeo-muted);
    margin: 0 0 16px;
}

/* CTA */
.xb-cta {
    padding: 72px 0;
    background:
        radial-gradient(ellipse 60% 50% at 50% 0%, rgba(245, 166, 35, 0.08) 0%, transparent 60%),
        var(--xeo-navy);
    color: #fff;
    text-align: center;
}

.xb-cta .xb-heading { color: #fff; }
.xb-cta .xb-lead { color: rgba(255, 255, 255, 0.68); max-width: 560px; margin: 0 auto 28px; }

.xb-cta__actions {
    display: flex;
    flex-wrap: wrap;
    gap: 14px;
    justify-content: center;
}

@media (max-width: 991px) {
    .xb-grid { grid-template-columns: repeat(2, 1fr); }
    .xb-article-layout { grid-template-columns: 1fr; }
    .xb-sidebar { position: static; }
}

@media (max-width: 640px) {
    .xb-grid { grid-template-columns: 1fr; }
    .xb-hero { padding-bottom: 64px; }
    .xb-filters a { font-size: 12px; padding: 8px 14px; }
}