/* Visual Overview - Graphical One-Page Summary */
.vo-hero {
    text-align: center;
    padding: 60px 20px;
    background: linear-gradient(135deg, #1a1a2e 0%, #16213e 50%, #0f3460 100%);
    border-radius: 16px;
    margin: -20px -20px 40px -20px;
    color: white;
}
.vo-hero h1 {
    font-size: 4rem;
    font-weight: 800;
    letter-spacing: -3px;
    margin-bottom: 10px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 50%, #f093fb 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}
.vo-hero .tagline {
    font-size: 1.2rem;
    opacity: 0.8;
    margin-bottom: 20px;
}
.vo-hero .version {
    display: inline-block;
    background: rgba(255,255,255,0.1);
    padding: 8px 20px;
    border-radius: 20px;
    font-size: 0.9rem;
}

/* Section Headers */
.vo-section {
    margin: 60px 0;
    padding: 40px;
    background: var(--md-code-bg-color);
    border-radius: 12px;
    border-left: 4px solid #667eea;
}
.vo-section h2 {
    font-size: 2rem;
    margin-bottom: 30px;
    display: flex;
    align-items: center;
    gap: 15px;
}
.vo-section h2::before {
    content: attr(data-num);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 50px;
    height: 50px;
    background: linear-gradient(135deg, #667eea, #764ba2);
    color: white;
    border-radius: 12px;
    font-size: 1.5rem;
    font-weight: 700;
}

/* Metric Cards */
.vo-metrics {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    gap: 20px;
    margin: 30px 0;
}
.vo-metric {
    background: linear-gradient(135deg, #667eea22, #764ba222);
    padding: 25px;
    border-radius: 12px;
    text-align: center;
    border: 1px solid #667eea44;
}
.vo-metric .value {
    font-size: 2.5rem;
    font-weight: 800;
    color: #667eea;
    line-height: 1;
}
.vo-metric .label {
    font-size: 0.85rem;
    opacity: 0.7;
    margin-top: 8px;
    text-transform: uppercase;
    letter-spacing: 1px;
}

/* Flow Diagram */
.vo-flow {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 15px;
    flex-wrap: wrap;
    margin: 30px 0;
    padding: 30px;
    background: var(--md-default-bg-color);
    border-radius: 12px;
}
.vo-flow-box {
    padding: 20px 30px;
    border-radius: 10px;
    text-align: center;
    min-width: 140px;
    background: var(--md-code-bg-color);
    border: 2px solid var(--md-default-fg-color--lightest);
    transition: all 0.3s;
}
.vo-flow-box:hover {
    border-color: #667eea;
    transform: translateY(-3px);
}
.vo-flow-box.active {
    background: linear-gradient(135deg, #667eea, #764ba2);
    color: white;
    border-color: transparent;
}
.vo-flow-box .icon { font-size: 1.5rem; margin-bottom: 8px; }
.vo-flow-box .title { font-weight: 600; font-size: 0.95rem; }
.vo-flow-box .sub { font-size: 0.75rem; opacity: 0.7; margin-top: 4px; }
.vo-flow-arrow { font-size: 1.5rem; color: #667eea; }

/* Strategy Cards */
.vo-strategies {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 25px;
    margin: 30px 0;
}
.vo-strategy {
    padding: 30px;
    border-radius: 12px;
    background: var(--md-default-bg-color);
    border: 2px solid transparent;
    position: relative;
    overflow: hidden;
}
.vo-strategy.spear {
    border-color: #f59e0b;
}
.vo-strategy.spear::before {
    content: '🗡️';
    position: absolute;
    top: 20px;
    right: 20px;
    font-size: 2rem;
}
.vo-strategy.shield {
    border-color: #10b981;
}
.vo-strategy.shield::before {
    content: '🛡️';
    position: absolute;
    top: 20px;
    right: 20px;
    font-size: 2rem;
}
.vo-strategy h3 {
    font-size: 1.3rem;
    margin-bottom: 5px;
}
.vo-strategy .type {
    font-size: 0.85rem;
    opacity: 0.6;
    margin-bottom: 20px;
}
.vo-strategy table {
    width: 100%;
    font-size: 0.9rem;
}
.vo-strategy td {
    padding: 8px 0;
    border-bottom: 1px solid var(--md-default-fg-color--lightest);
}
.vo-strategy td:last-child {
    text-align: right;
    font-weight: 600;
}

/* Roadmap */
.vo-roadmap {
    display: flex;
    gap: 3px;
    margin: 30px 0;
    overflow-x: auto;
}
.vo-roadmap-item {
    flex: 1;
    min-width: 120px;
    padding: 25px 15px;
    text-align: center;
    background: var(--md-code-bg-color);
    position: relative;
}
.vo-roadmap-item.current {
    background: linear-gradient(135deg, #667eea, #764ba2);
    color: white;
}
.vo-roadmap-item .version {
    font-size: 1.8rem;
    font-weight: 800;
}
.vo-roadmap-item .capital {
    font-size: 0.9rem;
    margin-top: 5px;
}
.vo-roadmap-item .feature {
    font-size: 0.75rem;
    opacity: 0.7;
    margin-top: 10px;
    line-height: 1.4;
}

/* Data Sources */
.vo-sources {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 15px;
    margin: 30px 0;
}
.vo-source {
    display: flex;
    align-items: center;
    gap: 15px;
    padding: 20px;
    background: var(--md-default-bg-color);
    border-radius: 10px;
    border-left: 4px solid #10b981;
}
.vo-source .icon {
    font-size: 1.5rem;
    width: 40px;
    text-align: center;
}
.vo-source .info .name {
    font-weight: 600;
    font-size: 0.95rem;
}
.vo-source .info .desc {
    font-size: 0.8rem;
    opacity: 0.6;
}
.vo-source .status {
    margin-left: auto;
    background: #10b981;
    color: white;
    padding: 4px 10px;
    border-radius: 10px;
    font-size: 0.7rem;
    font-weight: 600;
}

/* Archive Section */
.vo-archive-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
    gap: 15px;
    margin: 30px 0;
}
.vo-archive-item {
    padding: 20px;
    background: linear-gradient(135deg, #10b98122, #10b98111);
    border-radius: 10px;
    text-align: center;
    border: 1px solid #10b98144;
}
.vo-archive-item .icon { font-size: 2rem; margin-bottom: 10px; }
.vo-archive-item .name { font-weight: 600; font-size: 0.95rem; }
.vo-archive-item .freq { font-size: 0.8rem; opacity: 0.6; margin-top: 5px; }

/* Schedule Timeline */
.vo-timeline {
    position: relative;
    padding-left: 30px;
    margin: 30px 0;
}
.vo-timeline::before {
    content: '';
    position: absolute;
    left: 10px;
    top: 0;
    bottom: 0;
    width: 3px;
    background: linear-gradient(180deg, #667eea, #764ba2, #f093fb);
    border-radius: 3px;
}
.vo-timeline-item {
    position: relative;
    padding: 15px 0 15px 25px;
}
.vo-timeline-item::before {
    content: '';
    position: absolute;
    left: -24px;
    top: 20px;
    width: 14px;
    height: 14px;
    background: #667eea;
    border-radius: 50%;
    border: 3px solid var(--md-default-bg-color);
}
.vo-timeline-item .time {
    font-weight: 700;
    color: #667eea;
    font-size: 0.95rem;
}
.vo-timeline-item .event {
    font-size: 0.9rem;
    opacity: 0.8;
}

/* Status Badge */
.vo-badge {
    display: inline-block;
    padding: 4px 12px;
    border-radius: 4px;
    font-size: 0.7rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}
.vo-badge.done { background: #10b981; color: white; }
.vo-badge.progress { background: #f59e0b; color: white; }
.vo-badge.pending { background: var(--md-default-fg-color--lightest); }

/* Footer */
.vo-footer {
    text-align: center;
    padding: 40px;
    opacity: 0.6;
    font-size: 0.85rem;
}