* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Segoe UI', system-ui, sans-serif;
    background: #f5f7fa;
    color: #1e4b69;
    min-height: 100vh;
}

.container {
    max-width: 800px;
    margin: 0 auto;
    padding: 24px 20px;
}

h1 {
    text-align: center;
    color: #1e4b69;
    font-size: 1.5rem;
    margin-bottom: 4px;
}

.subtitle {
    text-align: center;
    color: #6b7280;
    font-size: 0.88rem;
    margin-bottom: 28px;
}

.pyramid {
    display: flex;
    flex-direction: column;
    gap: 8px;
    align-items: center;
}

.level {
    width: 100%;
    cursor: pointer;
}

.level-bar {
    border-radius: 12px;
    padding: 16px 20px;
    transition: transform 0.2s, box-shadow 0.2s;
    position: relative;
}

.level-bar:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(0, 0, 0, 0.12);
}

.level.active .level-bar {
    box-shadow: 0 6px 24px rgba(0, 0, 0, 0.15);
}

/* Level 5 - narrowest at top (Visionary) */
.level[data-level="5"] { max-width: 55%; }
.level-5 {
    background: linear-gradient(135deg, #f5f3ff, #ede9fe);
    border: 2px solid #c4b5fd;
}
.level-5 .level-badge { background: #7c3aed; }

/* Level 4 */
.level[data-level="4"] { max-width: 68%; }
.level-4 {
    background: linear-gradient(135deg, #fffbeb, #fef3c7);
    border: 2px solid #fcd34d;
}
.level-4 .level-badge { background: #f59e0b; }

/* Level 3 */
.level[data-level="3"] { max-width: 80%; }
.level-3 {
    background: linear-gradient(135deg, #f0fdf4, #dcfce7);
    border: 2px solid #86efac;
}
.level-3 .level-badge { background: #22c55e; }

/* Level 2 */
.level[data-level="2"] { max-width: 90%; }
.level-2 {
    background: linear-gradient(135deg, #eff6ff, #dbeafe);
    border: 2px solid #93c5fd;
}
.level-2 .level-badge { background: #3b82f6; }

/* Level 1 - widest at bottom (Foundational) */
.level[data-level="1"] { max-width: 100%; }
.level-1 {
    background: linear-gradient(135deg, #f9fafb, #f3f4f6);
    border: 2px solid #d1d5db;
}
.level-1 .level-badge { background: #6b7280; }

.level-content {
    display: flex;
    align-items: center;
    gap: 12px;
    flex-wrap: wrap;
}

.level-badge {
    color: #fff;
    font-size: 0.7rem;
    font-weight: 700;
    padding: 4px 10px;
    border-radius: 6px;
    white-space: nowrap;
    flex-shrink: 0;
}

.level-info {
    display: flex;
    align-items: center;
    gap: 10px;
    flex: 1;
    min-width: 180px;
}

.level-info h3 {
    font-size: 1rem;
    color: #1e4b69;
}

.timeframe {
    font-size: 0.75rem;
    font-weight: 600;
    color: #6b7280;
    background: rgba(255, 255, 255, 0.7);
    padding: 2px 8px;
    border-radius: 10px;
    white-space: nowrap;
}

.level-desc {
    font-size: 0.82rem;
    color: #4b5563;
    line-height: 1.4;
    width: 100%;
    margin-top: 4px;
}

.level-detail {
    display: none;
    padding: 14px 20px;
    background: rgba(255, 255, 255, 0.6);
    border-radius: 0 0 10px 10px;
    margin-top: 10px;
    animation: slideDown 0.3s ease;
}

.level-detail.visible {
    display: block;
}

@keyframes slideDown {
    from { opacity: 0; transform: translateY(-8px); }
    to { opacity: 1; transform: translateY(0); }
}

.level-detail h4 {
    font-size: 0.88rem;
    color: #1e4b69;
    margin-bottom: 10px;
}

.level-detail ul {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 5px;
}

.level-detail li {
    font-size: 0.84rem;
    color: #374151;
    padding: 7px 10px;
    background: rgba(255, 255, 255, 0.8);
    border-radius: 6px;
    line-height: 1.4;
}

.level-detail li::before {
    content: '\25A0';
    margin-right: 8px;
    font-size: 0.6rem;
    vertical-align: middle;
}

.level[data-level="5"] .level-detail li::before { color: #7c3aed; }
.level[data-level="4"] .level-detail li::before { color: #f59e0b; }
.level[data-level="3"] .level-detail li::before { color: #22c55e; }
.level[data-level="2"] .level-detail li::before { color: #3b82f6; }
.level[data-level="1"] .level-detail li::before { color: #6b7280; }

.tooltip {
    display: none;
    position: fixed;
    background: #1e293b;
    color: #fff;
    padding: 10px 14px;
    border-radius: 8px;
    font-size: 0.82rem;
    line-height: 1.5;
    max-width: 320px;
    z-index: 1000;
    pointer-events: none;
    box-shadow: 0 4px 16px rgba(0, 0, 0, 0.2);
}

@media (max-width: 600px) {
    .level[data-level="5"] { max-width: 70%; }
    .level[data-level="4"] { max-width: 80%; }
    .level[data-level="3"] { max-width: 88%; }
    .level[data-level="2"] { max-width: 94%; }
    .level[data-level="1"] { max-width: 100%; }

    .level-content {
        gap: 8px;
    }

    .level-info {
        min-width: 140px;
    }

    .level-info h3 {
        font-size: 0.9rem;
    }
}