:root {
    --brand-teal: #1c9a8b;
    --brand-yellow: #f9c533;
    --brand-orange: #f28c28;
    --ms-green: var(--brand-teal);
    --ms-dark: #0f172a;
    --ms-gray: #f6f8fb;
    --ms-light: #ffffff;
    --ms-blue: #0f4c81;
    --ms-border: rgba(15, 23, 42, 0.08);
}

body {
    font-family: 'Inter', system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    color: #0f172a;
    background: #ffffff;
}

.top-nav {
    background: #f7f9fc;
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--ms-border);
    position: sticky;
    top: 0;
    z-index: 200;
}

.top-nav__inner {
    gap: 1rem;
    position: relative;
    justify-content: space-between;
}

.top-nav .logo {
    font-weight: 800;
    color: var(--ms-dark);
    text-decoration: none;
    letter-spacing: -0.02em;
}

.nav-actions {
    display: flex;
    align-items: center;
    gap: 1rem;
    font-weight: 600;
    margin-left: auto;
}

.top-nav a {
    color: var(--ms-dark);
    text-decoration: none;
    display: inline-flex;
    align-items: center;
    gap: 0.35rem;
    transition: color 0.15s ease, opacity 0.15s ease;
}

.top-nav a i {
    color: #e11d48;
    font-size: 1rem;
}

.top-nav a:hover {
    color: var(--ms-blue);
}

.nav-toggle {
    display: none;
    width: 44px;
    height: 44px;
    border-radius: 999px;
    border: 1px solid var(--ms-border);
    background: #fff;
    flex-direction: column;
    justify-content: center;
    gap: 0.3rem;
}

.nav-toggle-bar {
    width: 22px;
    height: 2px;
    background: var(--ms-dark);
    border-radius: 4px;
}

.hero-cta {
    padding: 3.25rem 0 4rem;
    min-height: 320px;
    max-height: 420px;
    background-size: cover;
    background-position: center;
    position: relative;
    color: #fff;
    background-color: var(--brand-teal);
    background-blend-mode: multiply;
    overflow: hidden;
}

.hero-cta .hero-inner {
    max-width: 920px;
}

.hero-cta::after {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, rgba(28,154,139,0.82), rgba(249,197,51,0.62), rgba(242,140,40,0.55));
}

.hero-cta .container {
    position: relative;
    z-index: 2;
}

.hero-cta h1 {
    letter-spacing: -0.02em;
    text-transform: uppercase;
}

.hero-cta .btn {
    box-shadow: 0 12px 30px rgba(0, 0, 0, 0.15);
    transition: transform 0.2s ease, box-shadow 0.2s ease, background 0.2s ease, border-color 0.2s ease, color 0.2s ease;
}

.hero-cta .btn-success {
    background: var(--brand-teal);
    border-color: var(--brand-teal);
}

.hero-cta .btn-outline-light {
    border-color: rgba(255,255,255,0.8);
    color: #fff;
}

.hero-cta .btn:hover,
.hero-cta .btn:focus-visible {
    transform: translateY(-2px);
    box-shadow: 0 18px 40px rgba(0, 0, 0, 0.2);
}

.hero-cta .btn:active {
    transform: translateY(0);
    box-shadow: 0 10px 20px rgba(0, 0, 0, 0.18);
}

.nav-overlay {
    display: none;
}

.microsite-section {
    padding: 3rem 0;
}

.section-title {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 1.25rem;
}

.card {
    border: 1px solid var(--ms-border);
    border-radius: 16px;
    box-shadow: 0 20px 50px rgba(15, 23, 42, 0.06);
}

.badge-soft {
    background: #e6f0ff;
    color: var(--ms-blue);
    border-radius: 12px;
    padding: 4px 10px;
    font-size: 12px;
}

.gallery-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 1rem;
}

.gallery-tile {
    border-radius: 16px;
    overflow: hidden;
    position: relative;
    box-shadow: 0 15px 40px rgba(15, 23, 42, 0.12);
}

.gallery-tile img {
    width: 100%;
    height: 140px;
    object-fit: cover;
}

.gallery-tile span {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    padding: 0.5rem 0.75rem;
    background: linear-gradient(180deg, transparent, rgba(0,0,0,0.65));
    color: #fff;
    font-size: 0.9rem;
}

.gallery-placeholder {
    text-align: center;
    padding: 2rem;
    border-radius: 16px;
    border: 1px dashed rgba(15, 23, 42, 0.25);
    color: #64748b;
}

.microsite-footer {
    border-top: 1px solid var(--ms-border);
    padding: 1.5rem 0;
    background: #fff;
}

.highlight-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 1.25rem;
}

.highlight-card {
    background: #fff;
    border: 1px solid rgba(15,23,42,0.08);
    border-radius: 14px;
    padding: 1.25rem;
    box-shadow: 0 12px 26px rgba(15,23,42,0.08);
}

.book-stack {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
    gap: 1rem;
}

.book-stack figure {
    margin: 0;
    text-align: center;
}

.book-stack img {
    width: 100%;
    height: 180px;
    object-fit: cover;
    border-radius: 12px;
    box-shadow: 0 10px 24px rgba(0,0,0,0.12);
}

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

.list-simple li {
    padding: 0.65rem 0;
    border-bottom: 1px solid rgba(15,23,42,0.08);
}

.list-simple li:last-child {
    border-bottom: none;
}

.book-stack {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(120px, 1fr));
    gap: 1rem;
}

.book-stack figure {
    margin: 0;
    text-align: center;
}

.book-stack img {
    width: 100%;
    height: 170px;
    object-fit: cover;
    border-radius: 12px;
    box-shadow: 0 10px 24px rgba(0,0,0,0.12);
}

.info-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: 1.25rem;
}

@media (max-width: 991.98px) {
    .nav-toggle {
        display: flex;
    }
    .nav-actions {
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        margin: 0 1rem;
        flex-direction: column;
        background: #fff;
        border-radius: 16px;
        padding: 1rem;
        box-shadow: 0 18px 50px rgba(15, 23, 42, 0.2);
        z-index: 220;
        opacity: 0;
        pointer-events: none;
        transform: translateY(-10px);
    }
    .nav-actions.is-open {
        opacity: 1;
        pointer-events: auto;
        transform: translateY(0);
    }
    .nav-overlay {
        display: block;
        position: fixed;
        inset: 0;
        background: rgba(4, 6, 21, 0.25);
        backdrop-filter: none;
        opacity: 0;
        visibility: hidden;
        transition: opacity 0.25s ease;
        z-index: 150;
    }
    .nav-overlay.is-open {
        opacity: 1;
        visibility: visible;
    }
    .nav-open .nav-overlay {
        opacity: 1;
        visibility: visible;
    }
    .nav-actions a,
    .nav-actions .btn {
        width: 100%;
        margin: 0;
        text-align: left;
        padding: 0.6rem 0.25rem;
    }
    body.nav-open {
        overflow: hidden;
    }
    .hero-cta {
        text-align: center;
    }
    .hero-cta .hero-actions {
        justify-content: center;
    }
    .section-title {
        flex-direction: column;
        align-items: flex-start;
        gap: 0.5rem;
    }
}

@media (max-width: 576px) {
    .hero-cta h1 {
        font-size: 2rem;
    }
    .gallery-grid {
        grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
    }
}