body {
    font-family: 'Hiragino Kaku Gothic ProN', 'ヒラギノ角ゴ ProN W3', Meiryo, メイリオ, sans-serif;
}

.gradient-btn {
    background: linear-gradient(135deg, #177ac3 0%, #1266a8 100%);
    position: relative;
    overflow: hidden;
}

.gradient-btn::before {
    content: '';
    display: block;
    position: absolute;
    width: 100%;
    height: 100%;
    top: 0;
    left: -100%;
    background-image: linear-gradient(
        130deg,
        rgba(255,255,255,0) 25%,
        rgba(255,255,255,0.5) 50%,
        rgba(255,255,255,0) 75%
    );
    pointer-events: none;
}

.gradient-btn:hover:not(:disabled)::before {
    animation: shine 0.5s forwards;
}

@keyframes shine {
    100% { left: 100%; }
}

.gradient-nav {
    background: linear-gradient(135deg, #094078 0%, #063260 100%);
}

/* モーダルオーバーレイ */
.modal-overlay {
    display: none;
    position: fixed;
    inset: 0;
    background: rgba(0,0,0,0.5);
    z-index: 1000;
    align-items: center;
    justify-content: center;
    padding: 16px;
}

.modal-overlay.active {
    display: flex;
}

.modal-body {
    background: #fff;
    border-radius: 12px;
    max-width: 660px;
    width: 100%;
    max-height: 80vh;
    display: flex;
    flex-direction: column;
    box-shadow: 0 20px 60px rgba(0,0,0,0.3);
}

.modal-header {
    padding: 20px 24px 16px;
    border-bottom: 1px solid #e5e7eb;
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-shrink: 0;
}

.modal-content {
    overflow-y: auto;
    padding: 24px;
    flex: 1;
    font-size: 14px;
    line-height: 1.7;
    color: #374151;
}

.modal-footer {
    padding: 16px 24px;
    border-top: 1px solid #e5e7eb;
    text-align: center;
    flex-shrink: 0;
}

.step-indicator {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0;
    margin-bottom: 32px;
}

.step-item {
    display: flex;
    align-items: center;
}

.step-circle {
    width: 32px;
    height: 32px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 13px;
    font-weight: 700;
    flex-shrink: 0;
}

.step-circle.active {
    background: #177ac3;
    color: #fff;
}

.step-circle.done {
    background: #16a34a;
    color: #fff;
}

.step-circle.inactive {
    background: #e5e7eb;
    color: #9ca3af;
}

.step-label {
    font-size: 12px;
    margin-left: 6px;
    white-space: nowrap;
}

.step-label.active { color: #177ac3; font-weight: 600; }
.step-label.done   { color: #16a34a; font-weight: 600; }
.step-label.inactive { color: #9ca3af; }

.step-line {
    width: 40px;
    height: 2px;
    background: #e5e7eb;
    margin: 0 4px;
    flex-shrink: 0;
}

.step-line.done { background: #16a34a; }