.hero-section {
    text-align: center;
    padding: 3rem 1.5rem 2rem;
    background: linear-gradient(135deg, rgba(0,81,90,0.04), rgba(200,169,110,0.04));
    border-radius: var(--mc-radius, 14px);
    margin-bottom: 0.5rem;
}
.hero-section h1 {
    font-weight: 700;
    font-size: 2.1rem;
    color: var(--mc-text-dark);
    letter-spacing: -0.02em;
    margin-bottom: 0.5rem;
}
.hero-section p {
    color: var(--mc-text-muted);
    font-size: 1.05rem;
    max-width: 580px;
    margin: 0 auto;
    line-height: 1.6;
}

.tool-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 1rem;
    padding: 1rem 0;
    max-width: 960px;
    margin-left: auto;
    margin-right: auto;
}

.tool-card {
    background: var(--mc-bg-card);
    border: 1px solid var(--mc-border);
    border-radius: var(--mc-radius, 14px);
    padding: 1.75rem 1.25rem;
    text-align: center;
    text-decoration: none;
    color: var(--mc-text-dark);
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: .75rem;
    cursor: pointer;
    position: relative;
    overflow: hidden;
}
.tool-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: linear-gradient(90deg, var(--mc-primary), var(--mc-gold));
    opacity: 0;
    transition: opacity 0.3s ease;
}
.tool-card:hover {
    transform: translateY(-6px);
    box-shadow: 0 12px 32px rgba(0,81,90,0.1), 0 4px 12px rgba(0,0,0,0.04);
    border-color: rgba(0,81,90,0.15);
    color: var(--mc-text-dark);
    text-decoration: none;
}
.tool-card:hover::before {
    opacity: 1;
}
.tool-card .tool-icon {
    width: 60px;
    height: 60px;
    border-radius: 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.7rem;
    color: #fff;
    flex-shrink: 0;
    box-shadow: 0 4px 12px rgba(0,0,0,0.15);
    transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}
.tool-card:hover .tool-icon {
    transform: scale(1.1);
}
.tool-card .tool-name { font-weight: 700; font-size: 0.95rem; color: var(--mc-text-dark); }
.tool-card .tool-desc { font-size: .8rem; color: var(--mc-text-muted); line-height: 1.5; }

.bg-outlook { background: linear-gradient(135deg, #0078d4, #2b88d8); }
.bg-teams { background: linear-gradient(135deg, #5b5fc7, #7b83eb); }
.bg-onedrive { background: linear-gradient(135deg, #0078d4, #28a8ea); }
.bg-sharepoint { background: linear-gradient(135deg, #038387, #06a4a9); }
.bg-onenote { background: linear-gradient(135deg, #7719aa, #9b3fc7); }
.bg-planner { background: linear-gradient(135deg, #31752f, #4ba34a); }
.bg-files { background: linear-gradient(135deg, #d83b01, #f05a28); }
.bg-tipps { background: linear-gradient(135deg, #b8922e, var(--mc-gold)); }

.section-card {
    background: var(--mc-bg-card);
    border: 1px solid var(--mc-border);
    border-radius: var(--mc-radius, 14px);
    padding: 1.5rem;
    margin-bottom: 1.5rem;
    transition: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
}
.section-card:hover {
    box-shadow: 0 8px 24px rgba(0,0,0,0.06);
}
.section-card h3 {
    font-size: 1.1rem;
    font-weight: 700;
    color: var(--mc-text-dark);
    margin-bottom: 1rem;
    display: flex;
    align-items: center;
    gap: .5rem;
}
.section-card h3 i { color: var(--mc-primary); }

.page-header {
    display: flex;
    align-items: center;
    gap: 1rem;
    margin-bottom: 1.5rem;
    padding-bottom: 1rem;
    border-bottom: 1px solid var(--mc-border);
}
.page-header .page-icon {
    width: 52px;
    height: 52px;
    border-radius: 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    color: #fff;
    flex-shrink: 0;
    box-shadow: 0 4px 12px rgba(0,0,0,0.15);
}
.page-header h1 { font-size: 1.5rem; font-weight: 700; color: var(--mc-text-dark); margin: 0; letter-spacing: -0.02em; }
.page-header p { margin: .25rem 0 0; color: var(--mc-text-muted); font-size: .9rem; }

.tip-box {
    background: linear-gradient(135deg, var(--mc-primary), var(--mc-primary-light));
    color: #fff;
    border-radius: var(--mc-radius, 14px);
    padding: 1.15rem 1.5rem;
    margin: 1.25rem 0;
    font-size: .9rem;
    line-height: 1.6;
    box-shadow: 0 4px 16px rgba(0,81,90,0.2);
}
.tip-box strong { color: var(--mc-gold); }

.key-point {
    display: flex;
    gap: .75rem;
    padding: .85rem 0;
    border-bottom: 1px solid var(--mc-border);
    transition: all 0.2s ease;
}
.key-point:hover { padding-left: 0.5rem; }
.key-point:last-child { border-bottom: none; }
.key-point .kp-icon {
    width: 38px;
    height: 38px;
    border-radius: 10px;
    background: linear-gradient(135deg, var(--mc-primary), var(--mc-primary-light));
    color: #fff;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    font-size: 1rem;
    box-shadow: 0 2px 8px rgba(0,81,90,0.15);
}
.key-point .kp-text h4 { font-size: .95rem; font-weight: 600; margin: 0 0 .2rem; color: var(--mc-text-dark); }
.key-point .kp-text p { margin: 0; font-size: .85rem; color: var(--mc-text); line-height: 1.5; }

.connection-map {
    display: flex;
    flex-wrap: wrap;
    gap: 1rem;
    justify-content: center;
    padding: 1.5rem 0;
}
.conn-node {
    text-align: center;
    padding: 1rem 1.25rem;
    border-radius: var(--mc-radius, 14px);
    border: 2px solid var(--mc-border);
    min-width: 120px;
    background: var(--mc-bg-card);
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    cursor: default;
}
.conn-node:hover { border-color: var(--mc-primary); transform: scale(1.05); box-shadow: 0 8px 20px rgba(0,81,90,0.1); }
.conn-node i { font-size: 2rem; display: block; margin-bottom: .5rem; color: var(--mc-primary); }
.conn-node span { font-size: .8rem; font-weight: 600; }
.conn-arrow {
    display: flex;
    align-items: center;
    color: var(--mc-primary);
    font-size: 1.5rem;
}

.nav-bottom {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-top: 1.5rem;
    margin-top: 2rem;
    border-top: 1px solid var(--mc-border);
}
.nav-bottom a {
    color: var(--mc-primary);
    text-decoration: none;
    font-weight: 600;
    font-size: .9rem;
    display: flex;
    align-items: center;
    gap: .4rem;
    transition: all 0.2s ease;
}
.nav-bottom a:hover { gap: .6rem; }

/* ---- Overview CTA Button ---- */
.mc-overview-btn {
    display: inline-flex;
    align-items: center;
    gap: .6rem;
    padding: .85rem 2rem;
    background: linear-gradient(135deg, var(--mc-primary, #00515A), var(--mc-primary-light, #39747A));
    color: #fff !important;
    border-radius: var(--mc-radius-pill, 30px);
    font-size: .92rem;
    font-weight: 600;
    text-decoration: none !important;
    transition: all 0.3s cubic-bezier(0.4,0,0.2,1);
    box-shadow: 0 4px 14px rgba(0,81,90,0.2);
    letter-spacing: 0.01em;
}
.mc-overview-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 24px rgba(0,81,90,0.3);
    background: linear-gradient(135deg, var(--mc-primary-dark, #003d44), var(--mc-primary, #00515A));
    color: #fff !important;
}
.mc-overview-btn i {
    font-size: 1.1rem;
}

[data-theme="dark"] .mc-overview-btn {
    background: linear-gradient(135deg, #2a4a50, #3a6068);
    box-shadow: 0 4px 14px rgba(0,0,0,0.3);
}
[data-theme="dark"] .mc-overview-btn:hover {
    background: linear-gradient(135deg, #3a6068, #4a7a82);
    box-shadow: 0 8px 24px rgba(0,0,0,0.4);
}

@media (max-width: 900px) {
    .tool-grid { grid-template-columns: repeat(3, 1fr); }
}
@media (max-width: 768px) {
    .tool-grid { grid-template-columns: repeat(2, 1fr); gap: .75rem; }
    .tool-card { padding: 1.25rem .75rem; }
    .hero-section h1 { font-size: 1.5rem; }
    .hero-section { padding: 2rem 1rem 1.5rem; }
    .connection-map { flex-direction: column; align-items: center; }
    .conn-arrow { transform: rotate(90deg); }
    .mc-overview-btn { padding: .75rem 1.5rem; font-size: .85rem; }
}