:root {
    --brand-primary: #0a4ea6;
    --brand-secondary: #2a72d6;
    --brand-soft: #eaf2ff;
    --brand-dark: #08306b;
    --surface: #f7faff;
    --text-main: #1e293b;
}

/* ============================================================
   ANIMATIONS
   ============================================================ */

@keyframes fadeIn {
    from {
        opacity: 0;
    }
    to {
        opacity: 1;
    }
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes slideInRight {
    from {
        opacity: 0;
        transform: translateX(100px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

@keyframes slideInDown {
    from {
        opacity: 0;
        transform: translateY(-20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes skeletonShimmer {
    0% {
        transform: translateX(-100%);
    }
    100% {
        transform: translateX(100%);
    }
}

@keyframes pulse {
    0%, 100% {
        opacity: 1;
    }
    50% {
        opacity: 0.5;
    }
}

@keyframes bounce {
    0%, 100% {
        transform: translateY(0);
    }
    50% {
        transform: translateY(-10px);
    }
}

.fade-in {
    animation: fadeIn 0.5s ease-in-out;
}

.fade-in-up {
    animation: fadeInUp 0.6s ease-out;
}

.fade-in-active {
    animation: fadeInUp 0.7s ease-out !important;
}

.slide-in-down {
    animation: slideInDown 0.4s ease-out;
}

.pulse {
    animation: pulse 2s ease-in-out infinite;
}

.bounce {
    animation: bounce 1s ease-in-out infinite;
}

html {
    scroll-behavior: smooth;
}

body {
    background: linear-gradient(180deg, #f8fbff 0%, #eef5ff 100%);
    color: var(--text-main);
}

.public-page {
    position: relative;
    min-height: 100vh;
    font-family: 'Manrope', sans-serif;
    background:
        radial-gradient(circle at top left, rgba(34, 197, 94, 0.14), transparent 28%),
        radial-gradient(circle at top right, rgba(59, 130, 246, 0.2), transparent 34%),
        radial-gradient(circle at 20% 80%, rgba(14, 165, 233, 0.14), transparent 26%),
        linear-gradient(180deg, #f5fbff 0%, #edf4ff 38%, #f9fcff 100%);
}

.public-page::before,
.public-page::after {
    content: "";
    position: fixed;
    inset: auto;
    z-index: 0;
    pointer-events: none;
    filter: blur(16px);
}

.public-page::before {
    top: 5rem;
    left: -5rem;
    width: 16rem;
    height: 16rem;
    border-radius: 999px;
    background: radial-gradient(circle, rgba(56, 189, 248, 0.24), rgba(56, 189, 248, 0));
}

.public-page::after {
    right: -4rem;
    bottom: 4rem;
    width: 18rem;
    height: 18rem;
    border-radius: 999px;
    background: radial-gradient(circle, rgba(59, 130, 246, 0.2), rgba(59, 130, 246, 0));
}

.public-page .navbar,
.public-page .public-shell,
.public-page footer {
    position: relative;
    z-index: 1;
}

.public-page .navbar {
    background: rgba(255, 255, 255, 0.7) !important;
    border-bottom: 1px solid rgba(148, 163, 184, 0.18) !important;
    backdrop-filter: blur(16px);
    box-shadow: 0 14px 32px rgba(15, 56, 116, 0.06);
    z-index: 1200;
}

.public-page .public-shell,
.public-page footer {
    z-index: 1;
}

.public-page .navbar .dropdown-menu {
    z-index: 1300;
}

.public-page .navbar-brand,
.public-page .section-title {
    font-family: 'Space Grotesk', sans-serif;
}

.public-page .navbar-brand {
    color: #0b4fc2 !important;
    text-shadow: 0 8px 24px rgba(11, 79, 194, 0.14);
}

.public-page .nav-link {
    color: rgba(15, 23, 42, 0.76);
    font-weight: 600;
}

.public-page .nav-link.active,
.public-page .nav-link:hover {
    color: #0b4fc2 !important;
}

.public-page .nav-link.active {
    position: relative;
}

.public-page .nav-link.active::after {
    content: "";
    position: absolute;
    left: 0.25rem;
    right: 0.25rem;
    bottom: -0.15rem;
    height: 0.2rem;
    border-radius: 999px;
    background: linear-gradient(90deg, #0ea5e9, #2563eb);
}

.public-shell {
    padding-top: 2.2rem !important;
}

.public-page {
    --accent-1: #0ea5e9;
    --accent-2: #2563eb;
    --accent-3: #22c55e;
    --accent-ink: #0b4fc2;
}

.public-page .navbar-brand {
    color: var(--accent-ink) !important;
}

.public-page .nav-link.active,
.public-page .nav-link:hover {
    color: var(--accent-ink) !important;
}

.public-page .nav-link.active::after {
    background: linear-gradient(90deg, var(--accent-1), var(--accent-2));
}

.public-page .hero-slide::before {
    background:
        linear-gradient(115deg, rgba(7, 32, 84, 0.82), color-mix(in srgb, var(--accent-2) 52%, transparent)),
        linear-gradient(180deg, color-mix(in srgb, var(--accent-1) 20%, transparent), color-mix(in srgb, var(--accent-3) 14%, transparent));
}

.public-page .section-kicker {
    color: var(--accent-1);
}

.public-page .blue-badge {
    color: color-mix(in srgb, var(--accent-2) 80%, #0f172a);
    border-color: color-mix(in srgb, var(--accent-1) 24%, transparent);
    background: color-mix(in srgb, var(--accent-1) 14%, white);
}

.public-page .btn-primary {
    background: linear-gradient(135deg, var(--accent-1), var(--accent-2) 58%, color-mix(in srgb, var(--accent-2) 70%, #0f172a));
}

.public-page .btn-primary:hover,
.public-page .btn-primary:focus {
    background: linear-gradient(135deg, color-mix(in srgb, var(--accent-1) 82%, #000), color-mix(in srgb, var(--accent-2) 90%, #000));
}

@keyframes contactFabPulseRing {
    0% {
        transform: scale(0.92);
        opacity: 0;
    }
    30% {
        opacity: 0.28;
    }
    100% {
        transform: scale(1.38);
        opacity: 0;
    }
}

.contact-fab {
    position: fixed;
    right: 1.25rem;
    bottom: 1.5rem;
    z-index: 1080;
    display: flex;
    flex-direction: column;
    align-items: flex-end;
    gap: 0.85rem;
    pointer-events: none;
}

.contact-fab-trigger,
.contact-fab-meta {
    pointer-events: auto;
}

.contact-fab-meta {
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.contact-fab-panel {
    width: min(320px, calc(100vw - 2rem));
    padding: 1rem;
    border-radius: 1rem;
    background: rgba(255, 255, 255, 0.96);
    color: #0f172a;
    border: 1px solid rgba(15, 76, 129, 0.15);
    box-shadow: 0 18px 50px rgba(15, 76, 129, 0.18);
    opacity: 0;
    transform: translateY(12px) scale(0.96);
    pointer-events: none;
    transform-origin: bottom right;
    transition: opacity 0.24s ease, transform 0.24s ease;
    backdrop-filter: blur(14px);
}

.contact-fab-panel .text-muted {
    color: #475569 !important;
}

.contact-fab-panel .fw-semibold {
    color: #0f172a;
}

.contact-fab.is-open .contact-fab-panel {
    opacity: 1;
    transform: translateY(0) scale(1);
    pointer-events: auto;
}

.contact-fab-trigger {
    width: 64px;
    height: 64px;
    border: 0;
    border-radius: 999px;
    background: linear-gradient(135deg, #0f4c81, #35a7ff);
    color: #fff;
    box-shadow: 0 16px 40px rgba(15, 76, 129, 0.28);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0;
    position: relative;
    transition: transform 0.22s ease, box-shadow 0.22s ease, background 0.22s ease;
}

.contact-fab.is-attention .contact-fab-trigger::after {
    content: '';
    position: absolute;
    inset: -0.2rem;
    border-radius: 999px;
    background: rgba(53, 167, 255, 0.34);
    z-index: -1;
    animation: contactFabPulseRing 1.9s ease-out infinite;
}

.contact-fab-trigger:hover {
    transform: translateY(-2px) scale(1.02);
    box-shadow: 0 20px 48px rgba(15, 76, 129, 0.34);
}

.contact-fab.is-open .contact-fab-trigger {
    transform: rotate(8deg) scale(1.03);
    background: linear-gradient(135deg, #0b3d67, #1e88e5);
}

.contact-fab-tooltip {
    position: absolute;
    right: calc(100% + 0.7rem);
    top: 50%;
    transform: translateY(-50%) translateX(8px);
    padding: 0.5rem 0.8rem;
    border-radius: 999px;
    background: rgba(255, 255, 255, 0.96);
    color: #0f4c81;
    font-size: 0.78rem;
    font-weight: 700;
    line-height: 1;
    letter-spacing: 0.01em;
    border: 1px solid rgba(15, 76, 129, 0.12);
    box-shadow: 0 10px 24px rgba(15, 76, 129, 0.12);
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.18s ease, transform 0.18s ease;
    white-space: nowrap;
}

.contact-fab-trigger:hover .contact-fab-tooltip,
.contact-fab-trigger:focus-visible .contact-fab-tooltip {
    opacity: 1;
    transform: translateY(-50%) translateX(0);
}

.contact-fab-link {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1rem;
    padding: 0.85rem 1rem;
    border-radius: 0.9rem;
    text-decoration: none;
    color: #1f2937;
    border: 1px solid rgba(15, 76, 129, 0.08);
    background: linear-gradient(180deg, rgba(255, 255, 255, 0.98), rgba(240, 247, 255, 0.92));
    color: #0f172a !important;
    transition: transform 0.2s ease, box-shadow 0.2s ease, border-color 0.2s ease;
}

.contact-fab-link:visited,
.contact-fab-link:hover,
.contact-fab-link:focus {
    color: #0f172a !important;
}

.contact-fab-link:hover {
    transform: translateY(-1px);
    border-color: rgba(15, 76, 129, 0.18);
    box-shadow: 0 12px 28px rgba(15, 76, 129, 0.12);
}

.contact-fab-link.contact-fab-link-whatsapp:hover {
    border-color: rgba(37, 211, 102, 0.32);
    box-shadow: 0 14px 30px rgba(37, 211, 102, 0.14);
}

.contact-fab-link.contact-fab-link-email:hover,
.contact-fab-link.contact-fab-link-linkedin:hover {
    border-color: rgba(53, 167, 255, 0.32);
    box-shadow: 0 14px 30px rgba(53, 167, 255, 0.14);
}

.contact-fab-link.contact-fab-link-github:hover {
    border-color: rgba(71, 85, 105, 0.28);
    box-shadow: 0 14px 30px rgba(71, 85, 105, 0.14);
}

.contact-fab-copy {
    flex: 1;
    min-width: 0;
}

.contact-fab-copy strong {
    display: block;
    color: #0f3557;
    font-size: 0.95rem;
}

.contact-fab-copy span {
    display: block;
    font-size: 0.82rem;
    color: #334155;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.contact-fab-badge {
    width: 2.65rem;
    height: 2.65rem;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    border-radius: 999px;
    background: rgba(15, 76, 129, 0.08);
    color: #0f4c81;
    flex-shrink: 0;
}

.contact-fab-badge-whatsapp {
    color: #25d366;
    background: rgba(37, 211, 102, 0.12);
}

.contact-fab-badge-email,
.contact-fab-badge-linkedin {
    color: #0f4c81;
    background: rgba(53, 167, 255, 0.12);
}

.contact-fab-badge-github {
    color: #1f2937;
    background: rgba(148, 163, 184, 0.18);
}

.contact-fab-badge svg,
.contact-fab-trigger svg {
    width: 1.2rem;
    height: 1.2rem;
    display: block;
}

.contact-fab-status {
    display: inline-flex;
    align-items: center;
    gap: 0.45rem;
    margin-top: 0.15rem;
    color: #64748b;
    font-size: 0.76rem;
    font-weight: 600;
}

.contact-fab-status::before {
    content: '';
    width: 0.48rem;
    height: 0.48rem;
    border-radius: 999px;
    background: #22c55e;
    box-shadow: 0 0 0 0.18rem rgba(34, 197, 94, 0.16);
}

@media (max-width: 767.98px) {
    .contact-fab {
        right: 1rem;
        bottom: 1rem;
    }

    .contact-fab-trigger {
        width: 58px;
        height: 58px;
    }

    .contact-fab-tooltip {
        display: none;
    }
}

.public-page .btn-outline-primary {
    color: var(--accent-ink);
    border-color: color-mix(in srgb, var(--accent-1) 28%, transparent);
}

.public-page .btn-outline-primary:hover,
.public-page .btn-outline-primary:focus {
    background: linear-gradient(135deg, var(--accent-1), var(--accent-2));
}

.section-decor {
    position: relative;
    overflow: hidden;
    isolation: isolate;
}

.decor-orb {
    position: absolute;
    width: 13rem;
    height: 13rem;
    border-radius: 999px;
    pointer-events: none;
    filter: blur(8px);
    opacity: 0.28;
    z-index: 0;
    will-change: transform;
}

.decor-orb-a {
    top: -6.4rem;
    right: -4.4rem;
    background: radial-gradient(circle, color-mix(in srgb, var(--accent-1) 58%, white), transparent 66%);
}

.decor-orb-b {
    bottom: -7rem;
    left: -4.8rem;
    background: radial-gradient(circle, color-mix(in srgb, var(--accent-2) 44%, white), transparent 68%);
}

.decor-orb-c {
    top: 35%;
    right: -5.2rem;
    background: radial-gradient(circle, color-mix(in srgb, var(--accent-3) 42%, white), transparent 70%);
}

.section-decor > *:not(.decor-orb) {
    position: relative;
    z-index: 1;
}

.featured-article-card {
    display: grid;
    grid-template-columns: minmax(0, 1.25fr) minmax(0, 1fr);
    gap: 1.1rem;
    align-items: stretch;
}

.featured-article-media {
    height: 100%;
    min-height: 250px;
    border-radius: 1rem;
    overflow: hidden;
    aspect-ratio: 16 / 9;
}

.featured-article-media img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.45s ease;
}

.featured-article-card:hover .featured-article-media img {
    transform: scale(1.05);
}

.blog-filter-shell {
    background:
        linear-gradient(160deg, rgba(255, 255, 255, 0.98), rgba(239, 246, 255, 0.94)),
        radial-gradient(circle at top right, rgba(14, 165, 233, 0.12), transparent 45%);
}

.blog-tag-chip,
.blog-inline-tag {
    display: inline-flex;
    align-items: center;
    gap: 0.35rem;
    text-decoration: none;
    border-radius: 999px;
    font-size: 0.78rem;
    font-weight: 700;
}

.blog-tag-chip {
    padding: 0.42rem 0.78rem;
    color: #0b4fc2;
    border: 1px solid rgba(37, 99, 235, 0.16);
    background: rgba(255, 255, 255, 0.86);
}

.blog-tag-chip span {
    color: #64748b;
}

.blog-tag-chip.is-active,
.blog-tag-chip:hover,
.blog-tag-chip:focus {
    color: #ffffff;
    border-color: transparent;
    background: linear-gradient(135deg, #0ea5e9, #2563eb);
}

.blog-tag-chip.is-active span,
.blog-tag-chip:hover span,
.blog-tag-chip:focus span {
    color: rgba(255, 255, 255, 0.86);
}

.blog-inline-tag {
    padding: 0.24rem 0.62rem;
    color: #0b4fc2;
    background: rgba(14, 165, 233, 0.1);
}

.blog-inline-tag:hover,
.blog-inline-tag:focus {
    color: #ffffff;
    background: linear-gradient(135deg, #0ea5e9, #2563eb);
}

.blog-toc-shell {
    position: sticky;
    top: 5.5rem;
}

.blog-toc-list {
    display: grid;
    gap: 0.55rem;
}

.blog-toc-link {
    color: #0f3557;
    text-decoration: none;
    font-weight: 600;
    line-height: 1.4;
}

.blog-toc-link.is-sub {
    padding-left: 1rem;
    font-size: 0.92rem;
    color: #475569;
}

.blog-toc-link:hover,
.blog-toc-link:focus {
    color: #0b4fc2;
}

.related-post-card {
    padding: 1rem;
    border-radius: 1rem;
    border: 1px solid rgba(37, 99, 235, 0.12);
    background: rgba(248, 251, 255, 0.92);
    transition: transform 0.24s ease, box-shadow 0.24s ease;
}

.related-post-card:hover {
    transform: translateY(-2px);
    box-shadow: 0 12px 28px rgba(37, 99, 235, 0.12);
}

.featured-article-card .share-dropdown {
    align-self: end;
}

.navbar-brand {
    letter-spacing: 0.06em;
    font-weight: 700;
}

.hero-shell {
    border-radius: 1.25rem;
    overflow: hidden;
    box-shadow: 0 20px 45px rgba(8, 48, 107, 0.2);
    max-height: 280px;
}

.hero-shell .carousel-inner {
    max-height: 280px;
}

.public-page .hero-shell {
    border: 1px solid rgba(255, 255, 255, 0.68);
    box-shadow: 0 28px 60px rgba(20, 73, 148, 0.2);
}

.hero-slide {
    min-height: 280px;
    max-height: 280px;
    background-size: cover;
    background-position: center;
    position: relative;
    overflow: hidden;
}

.hero-slide img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.hero-shell .carousel-indicators.hero-indicators {
    bottom: 0.9rem;
    margin-bottom: 0;
    z-index: 6;
    gap: 0.5rem;
}

.hero-shell .carousel-indicators.hero-indicators [data-bs-target] {
    width: 0.62rem;
    height: 0.62rem;
    margin: 0;
    border: 0;
    border-radius: 999px;
    background: rgba(255, 255, 255, 0.5);
    opacity: 1;
    transition: transform 0.2s ease, background-color 0.2s ease, width 0.2s ease;
}

.hero-shell .carousel-indicators.hero-indicators .active {
    width: 1.7rem;
    background: #ffffff;
}

.hero-shell .carousel-indicators.hero-indicators [data-bs-target]:hover {
    transform: translateY(-1px);
    background: rgba(255, 255, 255, 0.78);
}

.hero-slide::before {
    content: "";
    position: absolute;
    inset: 0;
    background: linear-gradient(120deg, rgba(10, 78, 166, 0.8), rgba(42, 114, 214, 0.55));
}

.public-page .hero-slide::before {
    background:
        linear-gradient(115deg, rgba(7, 32, 84, 0.82), rgba(11, 79, 194, 0.5)),
        linear-gradient(180deg, rgba(14, 165, 233, 0.18), rgba(34, 197, 94, 0.1));
}

.hero-content {
    position: relative;
    z-index: 2;
    max-width: 680px;
}

.public-page .hero-content .display-5,
.public-page .hero-content .display-6 {
    letter-spacing: -0.04em;
    line-height: 1.1;
    max-width: 25ch;
    font-size: clamp(1.3rem, 4vw, 1.8rem);
}

.public-page .hero-content .lead {
    max-width: 52ch;
    color: rgba(255, 255, 255, 0.92);
    font-size: clamp(0.88rem, 2vw, 0.95rem);
}

.public-page .hero-content .btn {
    font-size: clamp(0.8rem, 1.8vw, 0.88rem);
    padding: clamp(0.25rem, 0.8vw, 0.5rem) clamp(0.5rem, 1.5vw, 1rem);
}

.public-page .insight-ribbon {
    background:
        linear-gradient(120deg, rgba(255, 255, 255, 0.95), rgba(247, 251, 255, 0.92)),
        radial-gradient(circle at top right, rgba(14, 165, 233, 0.14), transparent 55%);
}

.insight-label {
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;
    padding: 0.45rem 0.85rem;
    border-radius: 999px;
    font-size: 0.82rem;
    letter-spacing: 0.02em;
    text-transform: uppercase;
    font-weight: 800;
    color: #075985;
    background: rgba(14, 165, 233, 0.12);
}

.insight-pill {
    display: inline-flex;
    align-items: center;
    gap: 0.3rem;
    padding: 0.42rem 0.78rem;
    border-radius: 999px;
    font-size: 0.82rem;
    font-weight: 600;
    color: #1e3a8a;
    border: 1px solid rgba(37, 99, 235, 0.14);
    background: rgba(255, 255, 255, 0.82);
}

.insight-link {
    text-decoration: none;
    transition: transform 0.18s ease, box-shadow 0.18s ease, border-color 0.18s ease;
}

.insight-link:hover,
.insight-link:focus {
    color: #1e3a8a;
    border-color: rgba(37, 99, 235, 0.26);
    box-shadow: 0 8px 18px rgba(37, 99, 235, 0.14);
    transform: translateY(-1px);
}

.insight-pill strong {
    color: #0b4fc2;
}

.section-header-group {
    gap: 1rem;
}

.section-kicker {
    display: inline-block;
    margin-bottom: 0.45rem;
    font-size: 0.78rem;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    font-weight: 800;
    color: #0ea5e9;
}

.public-intro-panel {
    background:
        linear-gradient(120deg, rgba(255, 255, 255, 0.96), rgba(246, 251, 255, 0.96)),
        radial-gradient(circle at top left, rgba(56, 189, 248, 0.14), transparent 48%);
}

.public-article-card,
.public-portfolio-card {
    isolation: isolate;
}

.public-article-card::after,
.public-portfolio-card::after {
    content: "";
    position: absolute;
    inset: auto -20% -45% -20%;
    height: 52%;
    z-index: -1;
    border-radius: 50%;
    background: radial-gradient(circle, rgba(14, 165, 233, 0.16), rgba(14, 165, 233, 0));
    opacity: 0;
    transition: opacity 0.24s ease;
    pointer-events: none;
}

.public-article-card:hover::after,
.public-portfolio-card:hover::after {
    opacity: 1;
}

.public-page .public-article-card h5,
.public-page .public-portfolio-card h5 {
    line-height: 1.35;
    margin-bottom: 0.55rem;
}

.public-page .public-article-card p,
.public-page .public-portfolio-card p {
    color: #475569;
}

.public-page .public-article-card a.text-decoration-none,
.public-page .public-article-card a.text-primary,
.public-page .public-portfolio-card a.text-decoration-none,
.public-page .public-portfolio-card a.text-primary {
    font-weight: 700;
}

.portfolio-media-wrap {
    overflow: hidden;
    border-radius: 0.9rem 0.9rem 0 0;
    aspect-ratio: 16 / 9;
    width: 100%;
}

.article-media-wrap {
    overflow: hidden;
    border-radius: 0.9rem 0.9rem 0 0;
    aspect-ratio: 16 / 9;
    width: 100%;
}

.article-media-wrap img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.4s ease;
}

.public-page .public-article-card:hover .article-media-wrap img {
    transform: scale(1.04);
}

.public-page .portfolio-media-wrap img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.4s ease;
}

.public-page .public-portfolio-card:hover .portfolio-media-wrap img {
    transform: scale(1.06);
}

.clean-card {
    border: 0;
    border-radius: 1rem;
    background: #ffffff;
    box-shadow: 0 10px 25px rgba(15, 56, 116, 0.08);
}

.public-page .clean-card,
.public-page .soft-panel {
    position: relative;
    overflow: hidden;
    border: 1px solid rgba(255, 255, 255, 0.72);
    box-shadow: 0 18px 40px rgba(10, 78, 166, 0.08);
}

.public-page .clean-card::before,
.public-page .soft-panel::before {
    content: "";
    position: absolute;
    inset: 0 0 auto 0;
    height: 0.28rem;
    background: linear-gradient(90deg, rgba(14, 165, 233, 0.95), rgba(37, 99, 235, 0.82), rgba(34, 197, 94, 0.72));
    pointer-events: none;
}

.public-page article.clean-card,
.public-page .clean-card.auth-card,
.public-page .soft-panel {
    transition: transform 0.24s ease, box-shadow 0.24s ease, border-color 0.24s ease;
}

.public-page article.clean-card:hover,
.public-page .soft-panel:hover {
    transform: translateY(-4px);
    box-shadow: 0 24px 56px rgba(10, 78, 166, 0.14);
    border-color: rgba(14, 165, 233, 0.24);
}

.section-title {
    color: var(--brand-dark);
    font-weight: 700;
}

.public-page .section-title {
    color: #0f172a;
    letter-spacing: -0.03em;
}

.blue-badge {
    background: var(--brand-soft);
    color: var(--brand-primary);
    border: 1px solid rgba(10, 78, 166, 0.15);
}

.public-page .blue-badge {
    background: rgba(14, 165, 233, 0.12);
    color: #0369a1;
    border-color: rgba(14, 165, 233, 0.18);
    backdrop-filter: blur(10px);
}

.soft-panel {
    background: radial-gradient(circle at top right, rgba(42, 114, 214, 0.2), rgba(255, 255, 255, 1));
    border: 1px solid rgba(10, 78, 166, 0.12);
    border-radius: 1rem;
}

.public-page .soft-panel {
    background:
        radial-gradient(circle at top right, rgba(14, 165, 233, 0.2), rgba(255, 255, 255, 0.95)),
        linear-gradient(180deg, rgba(255, 255, 255, 0.95), rgba(247, 251, 255, 0.98));
}

.public-page .btn-primary {
    background: linear-gradient(135deg, #0ea5e9, #2563eb 58%, #1d4ed8);
    border-color: transparent;
    box-shadow: 0 14px 30px rgba(37, 99, 235, 0.22);
}

.public-page .btn-primary:hover,
.public-page .btn-primary:focus {
    background: linear-gradient(135deg, #0284c7, #1d4ed8 58%, #1e40af);
    border-color: transparent;
    box-shadow: 0 18px 38px rgba(29, 78, 216, 0.26);
}

.public-page .btn-outline-primary {
    border-color: rgba(14, 165, 233, 0.18);
    color: #0b4fc2;
    background: rgba(255, 255, 255, 0.82);
    box-shadow: 0 10px 22px rgba(10, 78, 166, 0.06);
}

.public-page .btn-outline-primary:hover,
.public-page .btn-outline-primary:focus {
    color: #ffffff;
    border-color: transparent;
    background: linear-gradient(135deg, #0ea5e9, #2563eb);
}

.public-page .alert {
    border: 1px solid rgba(14, 165, 233, 0.16);
    border-radius: 1rem;
    background: rgba(255, 255, 255, 0.84);
    box-shadow: 0 12px 28px rgba(10, 78, 166, 0.06);
}

.public-page .footer-note {
    color: #54627d;
}

.public-page .share-dropdown .dropdown-menu {
    background: rgba(255, 255, 255, 0.92);
    backdrop-filter: blur(14px);
    box-shadow: 0 18px 34px rgba(15, 56, 116, 0.12);
}

.public-page .share-dropdown .dropdown-item:hover,
.public-page .share-dropdown .dropdown-item:focus {
    background: rgba(14, 165, 233, 0.08);
    color: #0b4fc2;
}

.fade-in-up {
    animation: fadeInUp 0.7s ease forwards;
}

[data-fade-in] {
    opacity: 1;
    transform: none;
}

.js-fade [data-fade-in] {
    opacity: 0;
    transform: translateY(18px);
}

.js-fade [data-fade-in].fade-in-active {
    opacity: 1;
    transform: translateY(0);
    animation: fadeInUp 0.7s ease forwards;
}

.fade-delay-1 { animation-delay: 0.1s; }
.fade-delay-2 { animation-delay: 0.2s; }
.fade-delay-3 { animation-delay: 0.3s; }

@keyframes fadeInUp {
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.admin-stat {
    border-left: 4px solid var(--brand-secondary);
}

.footer-note {
    color: #5b6a87;
    font-size: 0.9rem;
}

.auth-card {
    border-top: 6px solid var(--brand-secondary);
    box-shadow: 0 16px 35px rgba(15, 56, 116, 0.14);
}

.rich-content img {
    max-width: 100%;
    height: auto;
    border-radius: 0.5rem;
}

/* ---- Image Crop Preview Modal ---- */
.crop-preview-modal {
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.8);
    z-index: 1500;
    display: none;
    align-items: center;
    justify-content: center;
    padding: 1rem;
    backdrop-filter: blur(4px);
}

.crop-preview-modal.is-active {
    display: flex;
}

.crop-preview-container {
    background: white;
    border-radius: 1rem;
    overflow: hidden;
    max-width: 800px;
    width: 100%;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3);
}

.crop-preview-header {
    padding: 1.5rem;
    border-bottom: 1px solid rgba(0, 0, 0, 0.1);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.crop-preview-header h5 {
    margin: 0;
    font-weight: 700;
    color: #0f172a;
}

.crop-preview-close {
    background: none;
    border: none;
    font-size: 1.5rem;
    cursor: pointer;
    color: #666;
    padding: 0;
    width: 2rem;
    height: 2rem;
    display: flex;
    align-items: center;
    justify-content: center;
}

.crop-preview-close:hover {
    color: #0b4fc2;
}

.crop-preview-canvas {
    background: #f5f5f5;
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 400px;
    position: relative;
    overflow: hidden;
}

.crop-preview-image {
    max-width: 100%;
    max-height: 400px;
    object-fit: contain;
}

.crop-preview-overlay {
    position: absolute;
    inset: 0;
    border: 2px dashed rgba(11, 79, 194, 0.3);
    pointer-events: none;
}

.crop-preview-footer {
    padding: 1.5rem;
    display: flex;
    gap: 0.75rem;
    justify-content: flex-end;
    border-top: 1px solid rgba(0, 0, 0, 0.1);
}

.crop-preview-btn {
    padding: 0.6rem 1.5rem;
    border: 1px solid #ddd;
    border-radius: 0.5rem;
    cursor: pointer;
    font-weight: 600;
    font-size: 0.95rem;
    transition: all 0.2s ease;
}

.crop-preview-btn-cancel {
    background: #f5f5f5;
    color: #333;
}

.crop-preview-btn-cancel:hover {
    background: #e8e8e8;
}

.crop-preview-btn-apply {
    background: linear-gradient(135deg, #0ea5e9, #2563eb);
    color: white;
    border-color: transparent;
}

.crop-preview-btn-apply:hover {
    box-shadow: 0 8px 16px rgba(37, 99, 235, 0.3);
    transform: translateY(-1px);
}

.rich-content iframe,
.rich-content video {
    width: 100%;
    min-height: 360px;
    border: 0;
    border-radius: 0.75rem;
    margin: 0.75rem 0;
}

.image-skeleton {
    position: relative;
    overflow: hidden;
    background: #e6edf7;
}

.image-skeleton::before {
    content: "";
    position: absolute;
    inset: 0;
    transform: translateX(-100%);
    background: linear-gradient(90deg, rgba(255, 255, 255, 0) 0%, rgba(255, 255, 255, 0.7) 50%, rgba(255, 255, 255, 0) 100%);
    animation: skeletonShimmer 1.2s infinite;
    z-index: 1;
    pointer-events: none;
}

.section-header-group,
.pagination-shell {
    position: relative;
    z-index: 8;
}

.section-header-group a,
.pagination-shell a,
.pagination-shell button {
    position: relative;
    z-index: 9;
    pointer-events: auto;
}

.image-skeleton > img.js-skeleton-image {
    opacity: 0;
    transition: opacity 0.28s ease;
}

.image-skeleton.is-loaded::before {
    opacity: 0;
    animation: none;
}

.image-skeleton.is-loaded > img.js-skeleton-image {
    opacity: 1;
}

.rich-content pre {
    background: #0f172a;
    color: #f8fafc;
    border-radius: 0.75rem;
    padding: 0.9rem;
    overflow-x: auto;
}

.share-dropdown .share-trigger {
    border-radius: 999px;
    padding: 0.35rem 0.9rem;
    font-weight: 600;
}

.share-dropdown .dropdown-menu {
    border: 1px solid rgba(10, 78, 166, 0.18);
    border-radius: 0.75rem;
    min-width: 12rem;
}

.share-dropdown .dropdown-item {
    font-size: 0.92rem;
}

.pagination-shell nav {
    display: flex;
    justify-content: center;
}

.pagination-shell .pagination {
    gap: 0.45rem;
    margin-bottom: 0;
    padding: 0.55rem 0.7rem;
    border-radius: 999px;
    background: rgba(255, 255, 255, 0.78);
    box-shadow: 0 14px 34px rgba(8, 48, 107, 0.1);
    backdrop-filter: blur(10px);
}

.pagination-shell .page-item {
    display: flex;
}

.pagination-shell .page-link {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 2.75rem;
    height: 2.75rem;
    padding: 0 0.9rem;
    border: 1px solid rgba(10, 78, 166, 0.12);
    border-radius: 999px;
    color: var(--brand-primary);
    background: rgba(255, 255, 255, 0.92);
    font-weight: 600;
    line-height: 1;
    text-align: center;
    box-shadow: 0 6px 16px rgba(15, 56, 116, 0.05);
    transition: transform 0.18s ease, box-shadow 0.18s ease, background-color 0.18s ease, color 0.18s ease, border-color 0.18s ease;
}

.pagination-shell .page-link:hover,
.pagination-shell .page-link:focus {
    color: var(--brand-dark);
    background: #ffffff;
    border-color: rgba(10, 78, 166, 0.28);
    box-shadow: 0 10px 24px rgba(15, 56, 116, 0.12);
    transform: translateY(-1px);
}

.pagination-shell .page-item.active .page-link {
    background: linear-gradient(135deg, var(--brand-primary), var(--brand-secondary));
    border-color: transparent;
    color: #ffffff;
    box-shadow: 0 14px 28px rgba(10, 78, 166, 0.28);
}

.pagination-shell .page-item.active .page-link:focus,
.pagination-shell .page-item.active .page-link:hover {
    color: #ffffff;
}

.pagination-shell .page-item.disabled .page-link {
    color: #9aa8bf;
    background: rgba(255, 255, 255, 0.72);
    border-color: rgba(148, 163, 184, 0.16);
    box-shadow: none;
    opacity: 0.9;
}

.pagination-shell .page-link svg,
.pagination-shell .page-link img {
    width: 1rem;
    height: 1rem;
    max-width: 1rem;
    max-height: 1rem;
    vertical-align: middle;
}

@media (max-width: 991.98px) {
    .navbar .navbar-collapse {
        background: #ffffff;
        border-radius: 0.75rem;
        margin-top: 0.75rem;
        padding: 0.75rem;
        box-shadow: 0 10px 25px rgba(15, 56, 116, 0.1);
    }

    .public-page .navbar .navbar-collapse {
        background: rgba(255, 255, 255, 0.88);
        backdrop-filter: blur(12px);
    }

    .navbar .nav-link {
        padding: 0.55rem 0.25rem;
    }

    .hero-shell {
        max-height: 220px;
    }

    .hero-shell .carousel-inner {
        max-height: 220px;
    }

    .hero-slide {
        min-height: 220px;
        max-height: 220px;
    }

    .hero-shell .carousel-indicators.hero-indicators {
        bottom: 0.75rem;
        gap: 0.42rem;
    }

    .public-page .nav-link.active::after {
        display: none;
    }

    .clean-card,
    .soft-panel {
        border-radius: 0.9rem;
    }

    .insight-ribbon .d-flex {
        gap: 0.55rem !important;
    }

    .featured-article-card {
        grid-template-columns: 1fr;
        gap: 0.9rem;
    }

    .featured-article-media {
        min-height: 210px;
    }

    .decor-orb {
        width: 10rem;
        height: 10rem;
        opacity: 0.2;
    }
}

@media (max-width: 767.98px) {
    main.container {
        padding-top: 1rem !important;
        padding-bottom: 1.5rem !important;
    }

    .hero-shell {
        border-radius: 0.85rem;
        max-height: 180px;
    }

    .hero-shell .carousel-inner {
        max-height: 180px;
    }

    .hero-slide {
        min-height: 180px;
        max-height: 180px;
        padding: 0.75rem !important;
    }

    .hero-shell .carousel-indicators.hero-indicators {
        bottom: 0.6rem;
        gap: 0.36rem;
    }

    .hero-shell .carousel-indicators.hero-indicators [data-bs-target] {
        width: 0.54rem;
        height: 0.54rem;
    }

    .hero-shell .carousel-indicators.hero-indicators .active {
        width: 1.45rem;
    }

    .hero-content {
        max-width: 100%;
    }

    .hero-content .display-5,
    .hero-content .display-6 {
        max-width: 100%;
    }

    .hero-content .lead {
        max-width: 100%;
    }

    .public-page::before,
    .public-page::after {
        opacity: 0.65;
    }

    .public-page .hero-content .display-5,
    .public-page .hero-content .display-6 {
        max-width: 100%;
    }

    .section-title {
        font-size: 1.25rem;
    }

    .section-kicker {
        font-size: 0.72rem;
        margin-bottom: 0.35rem;
    }

    .insight-label,
    .insight-pill {
        font-size: 0.74rem;
    }

    .public-intro-panel {
        padding: 1.2rem !important;
    }

    .featured-article-media {
        min-height: 180px;
    }

    .decor-orb {
        opacity: 0.14;
    }

    .share-dropdown .share-trigger {
        width: 100%;
    }

    .rich-content iframe,
    .rich-content video {
        min-height: 220px;
    }

    .pagination-shell .pagination {
        gap: 0.35rem;
        padding: 0.45rem 0.5rem;
        border-radius: 1.1rem;
    }

    .pagination-shell .page-link {
        min-width: 2.35rem;
        height: 2.35rem;
        padding: 0 0.75rem;
        font-size: 0.92rem;
    }
}

/* ============================================================
   DARK MODE  — follows OS / device prefers-color-scheme
   Bootstrap 5.3 components auto-adapt via [data-bs-theme="dark"].
   Rules below handle only custom / overridden components.
   ============================================================ */

[data-bs-theme="dark"] {
    --brand-primary:   #38bdf8;
    --brand-secondary: #60a5fa;
    --brand-dark:      #bae6fd;
    --surface:         #0f172a;
    --text-main:       #e2e8f0;
}

[data-bs-theme="dark"] body {
    background: linear-gradient(180deg, #0f172a 0%, #111827 100%);
    color: #e2e8f0;
}

/* ---- Public page background ---- */
[data-bs-theme="dark"] .public-page {
    background:
        radial-gradient(circle at top left, rgba(34, 197, 94, 0.07), transparent 28%),
        radial-gradient(circle at top right, rgba(59, 130, 246, 0.1), transparent 34%),
        radial-gradient(circle at 20% 80%, rgba(14, 165, 233, 0.07), transparent 26%),
        linear-gradient(180deg, #0f172a 0%, #0d1b35 38%, #111827 100%);
}

[data-bs-theme="dark"] .public-page::before {
    background: radial-gradient(circle, rgba(56, 189, 248, 0.1), rgba(56, 189, 248, 0));
}

[data-bs-theme="dark"] .public-page::after {
    background: radial-gradient(circle, rgba(59, 130, 246, 0.08), rgba(59, 130, 246, 0));
}

/* ---- Navbar ---- */
[data-bs-theme="dark"] .public-page .navbar {
    background: rgba(15, 23, 42, 0.88) !important;
    border-bottom: 1px solid rgba(148, 163, 184, 0.1) !important;
    box-shadow: 0 14px 32px rgba(0, 0, 0, 0.35);
}

[data-bs-theme="dark"] .public-page .navbar-brand {
    color: #38bdf8 !important;
    text-shadow: 0 8px 24px rgba(56, 189, 248, 0.22);
}

[data-bs-theme="dark"] .public-page .nav-link {
    color: rgba(226, 232, 240, 0.8);
}

[data-bs-theme="dark"] .public-page .nav-link.active,
[data-bs-theme="dark"] .public-page .nav-link:hover {
    color: #38bdf8 !important;
}

[data-bs-theme="dark"] .public-page .nav-link.active::after {
    background: linear-gradient(90deg, #38bdf8, #60a5fa);
}

[data-bs-theme="dark"] .navbar .navbar-collapse {
    background: #1a2234;
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.25);
}

[data-bs-theme="dark"] .public-page .navbar .navbar-collapse {
    background: rgba(15, 23, 42, 0.97);
    backdrop-filter: blur(14px);
}

[data-bs-theme="dark"] .contact-fab-panel {
    background: rgba(15, 23, 42, 0.96);
    color: #e2e8f0;
    border-color: rgba(148, 163, 184, 0.2);
    box-shadow: 0 18px 50px rgba(0, 0, 0, 0.45);
}

[data-bs-theme="dark"] .contact-fab-link {
    background: linear-gradient(180deg, rgba(30, 41, 59, 0.96), rgba(15, 23, 42, 0.92));
    border-color: rgba(148, 163, 184, 0.22);
    color: #e2e8f0 !important;
}

[data-bs-theme="dark"] .contact-fab-link:visited,
[data-bs-theme="dark"] .contact-fab-link:hover,
[data-bs-theme="dark"] .contact-fab-link:focus {
    color: #f8fafc !important;
}

[data-bs-theme="dark"] .contact-fab-panel .text-muted,
[data-bs-theme="dark"] .contact-fab-copy span {
    color: #cbd5e1 !important;
}

[data-bs-theme="dark"] .contact-fab-panel .fw-semibold,
[data-bs-theme="dark"] .contact-fab-copy strong {
    color: #f8fafc;
}

/* ---- Cards ---- */
[data-bs-theme="dark"] .clean-card {
    background: #1e293b;
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.3);
}

[data-bs-theme="dark"] .public-page .clean-card,
[data-bs-theme="dark"] .public-page .soft-panel {
    background: #1e293b;
    border-color: rgba(255, 255, 255, 0.07);
    box-shadow: 0 18px 40px rgba(0, 0, 0, 0.3);
}

[data-bs-theme="dark"] .public-page .clean-card::before,
[data-bs-theme="dark"] .public-page .soft-panel::before {
    background: linear-gradient(90deg, rgba(56, 189, 248, 0.8), rgba(96, 165, 250, 0.7), rgba(34, 197, 94, 0.6));
}

[data-bs-theme="dark"] .public-page article.clean-card:hover,
[data-bs-theme="dark"] .public-page .soft-panel:hover {
    box-shadow: 0 24px 56px rgba(0, 0, 0, 0.4);
    border-color: rgba(56, 189, 248, 0.2);
}

[data-bs-theme="dark"] .soft-panel {
    background: radial-gradient(circle at top right, rgba(42, 114, 214, 0.1), rgba(30, 41, 59, 1));
    border-color: rgba(255, 255, 255, 0.06);
}

[data-bs-theme="dark"] .public-page .soft-panel {
    background:
        radial-gradient(circle at top right, rgba(56, 189, 248, 0.1), rgba(30, 41, 59, 0.98)),
        linear-gradient(180deg, rgba(30, 41, 59, 0.98), rgba(17, 24, 39, 0.99));
}

/* ---- Insight ribbon ---- */
[data-bs-theme="dark"] .public-page .insight-ribbon {
    background:
        linear-gradient(120deg, rgba(30, 41, 59, 0.97), rgba(17, 24, 39, 0.95)),
        radial-gradient(circle at top right, rgba(56, 189, 248, 0.08), transparent 55%);
}

[data-bs-theme="dark"] .insight-label {
    color: #38bdf8;
    background: rgba(56, 189, 248, 0.1);
}

[data-bs-theme="dark"] .insight-pill {
    color: #bae6fd;
    border-color: rgba(96, 165, 250, 0.18);
    background: rgba(30, 41, 59, 0.82);
}

[data-bs-theme="dark"] .insight-link:hover,
[data-bs-theme="dark"] .insight-link:focus {
    color: #bae6fd;
    border-color: rgba(96, 165, 250, 0.3);
    box-shadow: 0 8px 18px rgba(0, 0, 0, 0.24);
}

[data-bs-theme="dark"] .insight-pill strong {
    color: #38bdf8;
}

[data-bs-theme="dark"] .blog-filter-shell,
[data-bs-theme="dark"] .related-post-card,
[data-bs-theme="dark"] .blog-toc-shell {
    background:
        linear-gradient(180deg, rgba(30, 41, 59, 0.97), rgba(15, 23, 42, 0.95));
    border-color: rgba(96, 165, 250, 0.12);
}

[data-bs-theme="dark"] .blog-tag-chip {
    color: #93c5fd;
    border-color: rgba(96, 165, 250, 0.22);
    background: rgba(30, 41, 59, 0.9);
}

[data-bs-theme="dark"] .blog-tag-chip span,
[data-bs-theme="dark"] .blog-toc-link.is-sub {
    color: #cbd5e1;
}

[data-bs-theme="dark"] .blog-inline-tag,
[data-bs-theme="dark"] .blog-toc-link {
    color: #93c5fd;
}

[data-bs-theme="dark"] .blog-inline-tag {
    background: rgba(56, 189, 248, 0.12);
}

/* ---- Intro panel ---- */
[data-bs-theme="dark"] .public-intro-panel {
    background:
        linear-gradient(120deg, rgba(30, 41, 59, 0.97), rgba(15, 23, 42, 0.97)),
        radial-gradient(circle at top left, rgba(56, 189, 248, 0.09), transparent 48%);
}

/* ---- Typography ---- */
[data-bs-theme="dark"] .public-page .section-title {
    color: #f0f6ff;
}

[data-bs-theme="dark"] .section-kicker,
[data-bs-theme="dark"] .public-page .section-kicker {
    color: #38bdf8;
}

[data-bs-theme="dark"] .public-page .public-article-card p,
[data-bs-theme="dark"] .public-page .public-portfolio-card p {
    color: #94a3b8;
}

[data-bs-theme="dark"] .public-page .public-article-card a.text-decoration-none,
[data-bs-theme="dark"] .public-page .public-article-card a.text-primary,
[data-bs-theme="dark"] .public-page .public-portfolio-card a.text-decoration-none,
[data-bs-theme="dark"] .public-page .public-portfolio-card a.text-primary {
    color: #60a5fa !important;
}

[data-bs-theme="dark"] .footer-note,
[data-bs-theme="dark"] .public-page .footer-note {
    color: #4b5563;
}

/* ---- Badges ---- */
[data-bs-theme="dark"] .blue-badge,
[data-bs-theme="dark"] .public-page .blue-badge {
    background: rgba(56, 189, 248, 0.1);
    color: #38bdf8;
    border-color: rgba(56, 189, 248, 0.18);
}

/* ---- Buttons ---- */
[data-bs-theme="dark"] .public-page .btn-outline-primary {
    color: #38bdf8;
    border-color: rgba(56, 189, 248, 0.24);
    background: rgba(30, 41, 59, 0.7);
}

[data-bs-theme="dark"] .public-page .btn-outline-primary:hover,
[data-bs-theme="dark"] .public-page .btn-outline-primary:focus {
    color: #ffffff;
    background: linear-gradient(135deg, #0284c7, #2563eb);
    border-color: transparent;
}

/* ---- Alert ---- */
[data-bs-theme="dark"] .public-page .alert {
    background: rgba(30, 41, 59, 0.88);
    border-color: rgba(56, 189, 248, 0.14);
    color: #e2e8f0;
}

/* ---- Share dropdown ---- */
[data-bs-theme="dark"] .public-page .share-dropdown .dropdown-menu {
    background: rgba(30, 41, 59, 0.96);
    border-color: rgba(56, 189, 248, 0.14);
    box-shadow: 0 18px 34px rgba(0, 0, 0, 0.3);
    color: #e2e8f0;
}

[data-bs-theme="dark"] .public-page .share-dropdown .dropdown-item {
    color: #e2e8f0;
}

[data-bs-theme="dark"] .public-page .share-dropdown .dropdown-item:hover,
[data-bs-theme="dark"] .public-page .share-dropdown .dropdown-item:focus {
    background: rgba(56, 189, 248, 0.1);
    color: #38bdf8;
}

/* ---- Pagination ---- */
[data-bs-theme="dark"] .pagination-shell .pagination {
    background: rgba(30, 41, 59, 0.85);
    box-shadow: 0 14px 34px rgba(0, 0, 0, 0.22);
}

[data-bs-theme="dark"] .pagination-shell .page-link {
    color: #60a5fa;
    background: rgba(30, 41, 59, 0.92);
    border-color: rgba(96, 165, 250, 0.14);
    box-shadow: 0 6px 16px rgba(0, 0, 0, 0.14);
}

[data-bs-theme="dark"] .pagination-shell .page-link:hover,
[data-bs-theme="dark"] .pagination-shell .page-link:focus {
    color: #bae6fd;
    background: rgba(51, 65, 85, 0.95);
    border-color: rgba(96, 165, 250, 0.3);
    box-shadow: 0 10px 24px rgba(0, 0, 0, 0.2);
}

[data-bs-theme="dark"] .pagination-shell .page-item.active .page-link {
    background: linear-gradient(135deg, #0ea5e9, #2563eb);
    border-color: transparent;
    color: #ffffff;
}

[data-bs-theme="dark"] .pagination-shell .page-item.disabled .page-link {
    color: #475569;
    background: rgba(30, 41, 59, 0.6);
    border-color: rgba(148, 163, 184, 0.08);
}

/* ---- Hero shell ---- */
[data-bs-theme="dark"] .public-page .hero-shell {
    border-color: rgba(255, 255, 255, 0.08);
    box-shadow: 0 28px 60px rgba(0, 0, 0, 0.55);
}

[data-bs-theme="dark"] .hero-shell .carousel-indicators.hero-indicators [data-bs-target] {
    background: rgba(148, 163, 184, 0.5);
}

[data-bs-theme="dark"] .hero-shell .carousel-indicators.hero-indicators .active {
    background: #38bdf8;
}

/* ---- Rich content ---- */
[data-bs-theme="dark"] .rich-content pre {
    background: #0d1117;
    color: #e2e8f0;
}

/* ---- Auth card ---- */
[data-bs-theme="dark"] .auth-card {
    background: #1e293b;
    box-shadow: 0 16px 35px rgba(0, 0, 0, 0.4);
}

/* ---- Decor orbs ---- */
[data-bs-theme="dark"] .decor-orb-a {
    background: radial-gradient(circle, rgba(56, 189, 248, 0.2), transparent 66%);
}

[data-bs-theme="dark"] .decor-orb-b {
    background: radial-gradient(circle, rgba(96, 165, 250, 0.16), transparent 68%);
}

[data-bs-theme="dark"] .decor-orb-c {
    background: radial-gradient(circle, rgba(34, 197, 94, 0.16), transparent 70%);
}

/* ---- Admin page overrides ---- */
/* Bootstrap data-bs-theme="dark" handles most BS components.   */
/* These rules cover remaining custom / utility pieces.          */

[data-bs-theme="dark"] body.admin-page {
    background: linear-gradient(180deg, #0f172a 0%, #111827 100%) !important;
}

[data-bs-theme="dark"] .admin-page .bg-white {
    background-color: #1e293b !important;
    color: #e2e8f0;
}

[data-bs-theme="dark"] .admin-page .navbar {
    background-color: #1e293b !important;
    border-bottom-color: rgba(255, 255, 255, 0.07) !important;
}

[data-bs-theme="dark"] .admin-page .navbar-brand {
    color: #38bdf8 !important;
}

[data-bs-theme="dark"] .admin-page .nav-link {
    color: rgba(226, 232, 240, 0.78);
}

[data-bs-theme="dark"] .admin-stat {
    background: #1e293b !important;
    border-left-color: var(--brand-secondary) !important;
}

[data-bs-theme="dark"] .admin-page .footer-note {
    color: #4b5563;
}

/* ============================================================
   FORM VALIDATION & INTERACTIVE ELEMENTS
   ============================================================ */

.form-control.is-invalid,
.form-control.is-invalid:focus,
.form-select.is-invalid,
.form-select.is-invalid:focus {
    border-color: #dc3545;
    box-shadow: 0 0 0 0.25rem rgba(220, 53, 69, 0.25);
}

.form-control.is-valid,
.form-control.is-valid:focus,
.form-select.is-valid,
.form-select.is-valid:focus {
    border-color: #198754;
    box-shadow: 0 0 0 0.25rem rgba(25, 135, 84, 0.25);
}

.invalid-feedback {
    display: block;
    font-size: 0.875rem;
    color: #dc3545;
    animation: slideInDown 0.3s ease-out;
}

/* Scroll to Top Button */
#scroll-to-top-btn {
    position: fixed;
    bottom: 2rem;
    right: 2rem;
    width: 3rem;
    height: 3rem;
    border-radius: 50%;
    background: var(--brand-primary);
    color: white;
    border: none;
    cursor: pointer;
    opacity: 0;
    pointer-events: none;
    transition: all 0.3s ease;
    box-shadow: 0 8px 24px rgba(10, 78, 166, 0.3);
    z-index: 999;
}

#scroll-to-top-btn:hover {
    transform: translateY(-4px);
    box-shadow: 0 12px 32px rgba(10, 78, 166, 0.4);
}

#scroll-to-top-btn:active {
    transform: translateY(-2px);
}

@media (max-width: 768px) {
    #scroll-to-top-btn {
        width: 2.5rem;
        height: 2.5rem;
        bottom: 1rem;
        right: 1rem;
        font-size: 0.9rem;
    }
}

/* Toast Styling Enhancement */
#toast-container .toast {
    border-radius: 0.75rem;
    overflow: hidden;
}

#toast-container .toast .btn-close {
    opacity: 0.7;
    transition: opacity 0.2s ease;
}

#toast-container .toast .btn-close:hover {
    opacity: 1;
}

/* Loading Skeleton */
.skeleton {
    background: linear-gradient(90deg, #f0f0f0 25%, #e0e0e0 50%, #f0f0f0 75%);
    background-size: 200% 100%;
    animation: loading 1.5s infinite;
}

@keyframes loading {
    0% {
        background-position: 200% 0;
    }
    100% {
        background-position: -200% 0;
    }
}

/* Smooth Transitions */
* {
    transition: background-color 0.2s ease, color 0.2s ease, border-color 0.2s ease;
}

button,
a,
input,
select,
textarea {
    transition: all 0.2s ease;
}

/* Enhanced Button Styles */
.btn {
    position: relative;
    overflow: hidden;
}

.btn::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 0;
    height: 0;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.3);
    transform: translate(-50%, -50%);
    transition: width 0.6s, height 0.6s;
}

.btn:hover::before,
.btn:focus::before {
    width: 300px;
    height: 300px;
}