/* 관리자 하위 페이지 공통 스타일 (대시보드·상품 관리와 동일 톤) */

.ch-admin-page {
    min-height: 100vh;
    background:
        radial-gradient(ellipse 80% 50% at 50% -20%, rgba(99, 102, 241, 0.15), transparent),
        radial-gradient(ellipse 50% 40% at 100% 0%, rgba(59, 130, 246, 0.08), transparent),
        #0f1117;
    color: #e2e8f0;
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Noto Sans KR", sans-serif;
}

.ch-admin-shell {
    max-width: 960px;
    margin: 0 auto;
    padding: 0 24px 48px;
}

.ch-admin-shell--wide {
    max-width: 1400px;
}

.ch-admin-loading,
.ch-admin-error-screen {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    min-height: 100vh;
    gap: 16px;
    color: #94a3b8;
    font-size: 15px;
}

.ch-admin-spinner {
    width: 40px;
    height: 40px;
    border: 3px solid #1e293b;
    border-top-color: #818cf8;
    border-radius: 50%;
    animation: ch-admin-spin 0.75s linear infinite;
}

@keyframes ch-admin-spin {
    to { transform: rotate(360deg); }
}

.ch-admin-topbar {
    padding: 24px 0 20px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.06);
    margin-bottom: 24px;
}

.ch-admin-topbar-nav {
    margin-bottom: 16px;
}

.ch-admin-back {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 10px 16px;
    background: rgba(255, 255, 255, 0.06);
    border: 1px solid rgba(255, 255, 255, 0.12);
    border-radius: 10px;
    color: #e2e8f0;
    font-size: 14px;
    font-weight: 600;
    text-decoration: none;
    line-height: 1;
    cursor: pointer;
    font-family: inherit;
    transition: background 0.15s, border-color 0.15s, transform 0.15s;
}

.ch-admin-back:hover {
    background: rgba(255, 255, 255, 0.1);
    border-color: rgba(165, 180, 252, 0.35);
    color: #f8fafc;
    transform: translateX(-2px);
}

.ch-admin-back-icon {
    font-size: 16px;
    font-weight: 700;
    color: #a5b4fc;
}

.ch-admin-topbar-row {
    display: flex;
    justify-content: space-between;
    align-items: flex-end;
    flex-wrap: wrap;
    gap: 16px;
}

.ch-admin-topbar-left {
    display: flex;
    flex-direction: column;
    gap: 6px;
}

.ch-admin-topbar h1 {
    margin: 0;
    font-size: 26px;
    font-weight: 700;
    color: #f8fafc;
    letter-spacing: -0.02em;
}

.ch-admin-topbar-actions {
    display: flex;
    gap: 10px;
    align-items: center;
    flex-wrap: wrap;
}

.ch-admin-card {
    background: #161b26;
    border: 1px solid rgba(255, 255, 255, 0.07);
    border-radius: 16px;
    padding: 28px;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.25);
}

.ch-admin-card + .ch-admin-card {
    margin-top: 20px;
}

.ch-admin-section-title {
    margin: 0 0 16px;
    font-size: 15px;
    font-weight: 600;
    color: #f1f5f9;
}

.ch-admin-section-sub {
    margin: -8px 0 20px;
    font-size: 13px;
    color: #64748b;
    line-height: 1.5;
}

.ch-alert {
    padding: 14px 16px;
    border-radius: 12px;
    margin-bottom: 20px;
    font-size: 14px;
    line-height: 1.5;
    border: 1px solid transparent;
}

.ch-alert--success {
    background: rgba(16, 185, 129, 0.12);
    color: #6ee7b7;
    border-color: rgba(16, 185, 129, 0.25);
}

.ch-alert--error {
    background: rgba(248, 113, 113, 0.12);
    color: #fca5a5;
    border-color: rgba(248, 113, 113, 0.25);
}

.ch-alert--warning {
    background: rgba(245, 158, 11, 0.12);
    color: #fcd34d;
    border-color: rgba(245, 158, 11, 0.25);
}

.ch-form-group {
    margin-bottom: 20px;
}

.ch-form-group label {
    display: block;
    margin-bottom: 8px;
    font-size: 13px;
    font-weight: 600;
    color: #94a3b8;
}

.ch-form-input {
    width: 100%;
    padding: 12px 14px;
    background: rgba(0, 0, 0, 0.25);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 10px;
    color: #f1f5f9;
    font-size: 15px;
    box-sizing: border-box;
    transition: border-color 0.2s, box-shadow 0.2s;
}

.ch-form-input::placeholder {
    color: #475569;
}

.ch-form-input:focus {
    outline: none;
    border-color: #6366f1;
    box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.2);
}

.ch-form-input:disabled {
    opacity: 0.6;
    cursor: not-allowed;
}

.ch-form-hint {
    display: block;
    margin-top: 6px;
    font-size: 12px;
    color: #64748b;
    line-height: 1.45;
}

.ch-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 6px;
    padding: 10px 18px;
    border: none;
    border-radius: 10px;
    font-size: 14px;
    font-weight: 600;
    cursor: pointer;
    transition: transform 0.15s, opacity 0.15s, background 0.15s;
}

.ch-btn:disabled {
    opacity: 0.55;
    cursor: not-allowed;
}

.ch-btn-primary {
    background: linear-gradient(135deg, #6366f1, #8b5cf6);
    color: #fff;
}

.ch-btn-primary:hover:not(:disabled) {
    transform: translateY(-1px);
    opacity: 0.95;
}

.ch-btn-secondary {
    background: rgba(255, 255, 255, 0.06);
    color: #e2e8f0;
    border: 1px solid rgba(255, 255, 255, 0.1);
}

.ch-btn-secondary:hover:not(:disabled) {
    background: rgba(255, 255, 255, 0.1);
}

.ch-status-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 8px 16px;
    border-radius: 999px;
    font-size: 13px;
    font-weight: 600;
}

.ch-status-badge--ok {
    background: rgba(16, 185, 129, 0.15);
    color: #6ee7b7;
    border: 1px solid rgba(16, 185, 129, 0.3);
}

.ch-status-badge--warn {
    background: rgba(245, 158, 11, 0.15);
    color: #fcd34d;
    border: 1px solid rgba(245, 158, 11, 0.3);
}

.ch-status-date {
    margin: 10px 0 0;
    font-size: 13px;
    color: #64748b;
}

.ch-divider {
    height: 1px;
    background: rgba(255, 255, 255, 0.06);
    margin: 24px 0;
    border: none;
}

@media (max-width: 768px) {
    .ch-admin-shell {
        padding: 0 16px 32px;
    }

    .ch-admin-topbar-row {
        flex-direction: column;
        align-items: flex-start;
    }

    .ch-admin-topbar-actions {
        width: 100%;
    }

    .ch-admin-card {
        padding: 20px;
    }
}