/* 기본 스타일 */
:root {
    --primary-color: #2563eb;
    --primary-hover: #1d4ed8;
    --success-color: #16a34a;
    --error-color: #dc2626;
    --warning-color: #f59e0b;
    --bg-color: #f8fafc;
    --card-bg: #ffffff;
    --text-color: #1e293b;
    --text-muted: #64748b;
    --border-color: #e2e8f0;
    --shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
}

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

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    background-color: var(--bg-color);
    color: var(--text-color);
    line-height: 1.6;
}

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

/* 헤더 */
.header {
    text-align: center;
    padding: 40px 20px;
    background: linear-gradient(135deg, var(--primary-color), #7c3aed);
    color: white;
    border-radius: 16px;
    margin-bottom: 24px;
}

.header h1 { font-size: 2rem; margin-bottom: 8px; }
.header .subtitle { opacity: 0.9; font-size: 1rem; }

/* 섹션 공통 */
section {
    background: var(--card-bg);
    border-radius: 12px;
    padding: 24px;
    margin-bottom: 20px;
    box-shadow: var(--shadow);
}

section h2 {
    font-size: 1.1rem;
    margin-bottom: 16px;
    color: var(--text-color);
}

/* 주문 조회 */
.lookup-section {
    background: #f1f5f9;
}

.lookup-form {
    display: flex;
    gap: 10px;
}

.lookup-form input {
    flex: 1;
    padding: 12px 16px;
    border: 2px solid var(--border-color);
    border-radius: 8px;
    font-size: 1rem;
}

.lookup-btn {
    padding: 12px 24px;
    background: var(--text-muted);
    color: white;
    border: none;
    border-radius: 8px;
    cursor: pointer;
    font-weight: 500;
}

.lookup-btn:hover { background: #475569; }

.lookup-result {
    margin-top: 16px;
}

.lookup-info {
    background: white;
    border-radius: 8px;
    padding: 16px;
}

.lookup-row {
    display: flex;
    justify-content: space-between;
    padding: 8px 0;
    border-bottom: 1px solid var(--border-color);
}

.lookup-row:last-child { border-bottom: none; }

.lookup-error {
    color: var(--error-color);
    text-align: center;
    padding: 16px;
}

/* 상품권 종류 선택 */
.voucher-types {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
    gap: 12px;
}

.voucher-type-btn {
    display: flex;
    flex-direction: column;
    align-items: center;
    padding: 16px 12px;
    background: var(--bg-color);
    border: 2px solid var(--border-color);
    border-radius: 12px;
    cursor: pointer;
    transition: all 0.2s;
}

.voucher-type-btn:hover {
    border-color: var(--primary-color);
    background: #eff6ff;
}

.voucher-type-btn.active {
    border-color: var(--primary-color);
    background: #dbeafe;
}

.voucher-name {
    font-size: 0.9rem;
    font-weight: 500;
    margin-bottom: 4px;
}

.voucher-rate {
    font-size: 1.2rem;
    font-weight: 700;
    color: var(--primary-color);
}

/* PIN 입력 */
.pin-form {
    display: flex;
    flex-direction: column;
    gap: 12px;
    margin-bottom: 16px;
}

.pin-row {
    display: flex;
    gap: 10px;
}

.pin-input {
    flex: 2;
    padding: 12px;
    border: 2px solid var(--border-color);
    border-radius: 8px;
    font-size: 1rem;
    font-family: monospace;
}

.amount-input {
    flex: 1;
    padding: 12px;
    border: 2px solid var(--border-color);
    border-radius: 8px;
    font-size: 1rem;
}

.pin-input:focus, .amount-input:focus {
    outline: none;
    border-color: var(--primary-color);
}

.add-row-btn, .remove-row-btn {
    width: 44px;
    height: 44px;
    border: none;
    border-radius: 8px;
    font-size: 1.5rem;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
}

.add-row-btn {
    background: var(--primary-color);
    color: white;
}

.remove-row-btn {
    background: var(--error-color);
    color: white;
}

.register-btn {
    width: 100%;
    padding: 14px;
    background: var(--success-color);
    color: white;
    border: none;
    border-radius: 8px;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
}

.register-btn:hover { background: #15803d; }

/* 등록된 상품권 테이블 */
.pin-table {
    width: 100%;
    border-collapse: collapse;
}

.pin-table th, .pin-table td {
    padding: 12px;
    text-align: left;
    border-bottom: 1px solid var(--border-color);
}

.pin-table th {
    background: var(--bg-color);
    font-weight: 500;
    font-size: 0.9rem;
}

.pin-cell { font-family: monospace; }
.amount-cell { font-weight: 500; }

.delete-btn {
    padding: 6px 12px;
    background: var(--error-color);
    color: white;
    border: none;
    border-radius: 4px;
    cursor: pointer;
    font-size: 0.8rem;
}

/* 금액 정보 */
.amount-info {
    background: var(--bg-color);
    border-radius: 8px;
    padding: 16px;
}

.amount-row {
    display: flex;
    justify-content: space-between;
    padding: 10px 0;
    border-bottom: 1px solid var(--border-color);
}

.amount-row:last-child { border-bottom: none; }

.amount-row.total {
    font-size: 1.2rem;
    font-weight: 700;
    color: var(--primary-color);
    padding-top: 16px;
    margin-top: 8px;
    border-top: 2px solid var(--primary-color);
    border-bottom: none;
}

/* 입금 정보 폼 */
.bank-form {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.form-group label {
    display: block;
    font-weight: 500;
    margin-bottom: 8px;
}

.form-group input, .form-group select {
    width: 100%;
    padding: 12px;
    border: 2px solid var(--border-color);
    border-radius: 8px;
    font-size: 1rem;
}

.form-group input:focus, .form-group select:focus {
    outline: none;
    border-color: var(--primary-color);
}

.form-group.checkbox {
    display: flex;
    align-items: center;
}

.form-group.checkbox label {
    display: flex;
    align-items: center;
    gap: 8px;
    margin-bottom: 0;
    cursor: pointer;
}

.form-group.checkbox input[type="checkbox"] {
    width: auto;
}

.form-group a {
    color: var(--primary-color);
}

.submit-btn {
    width: 100%;
    padding: 16px;
    background: var(--primary-color);
    color: white;
    border: none;
    border-radius: 8px;
    font-size: 1.1rem;
    font-weight: 600;
    cursor: pointer;
    margin-top: 16px;
}

.submit-btn:hover { background: var(--primary-hover); }
.submit-btn:disabled { background: var(--text-muted); cursor: not-allowed; }

/* 상태 표시 */
.status {
    padding: 4px 12px;
    border-radius: 20px;
    font-size: 0.85rem;
    font-weight: 500;
}

.status-pending { background: #fef3c7; color: #b45309; }
.status-processing { background: #dbeafe; color: #1d4ed8; }
.status-completed { background: #dcfce7; color: #16a34a; }
.status-rejected { background: #fee2e2; color: #dc2626; }

/* 안내사항 */
.info-list {
    list-style: none;
}

.info-list li {
    padding: 8px 0 8px 24px;
    position: relative;
    color: var(--text-muted);
}

.info-list li::before {
    content: '•';
    position: absolute;
    left: 8px;
    color: var(--primary-color);
}

/* 푸터 */
.footer {
    text-align: center;
    padding: 20px;
    color: var(--text-muted);
    font-size: 0.875rem;
}

/* 모달 */
.modal {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.5);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 1000;
    padding: 20px;
}

.modal-content {
    background: white;
    border-radius: 16px;
    padding: 24px;
    max-width: 500px;
    width: 100%;
    max-height: 80vh;
    overflow-y: auto;
    position: relative;
}

.modal-content h3 {
    margin-bottom: 16px;
    font-size: 1.2rem;
}

.close-btn {
    position: absolute;
    top: 16px;
    right: 20px;
    font-size: 1.5rem;
    cursor: pointer;
    color: var(--text-muted);
}

.close-btn:hover { color: var(--text-color); }

.modal-body p {
    margin-bottom: 12px;
    color: var(--text-muted);
    font-size: 0.9rem;
}

/* 결과 모달 */
.result-success, .result-error {
    text-align: center;
}

.result-success h3 { color: var(--success-color); }
.result-error h3 { color: var(--error-color); }

.result-success .order-no {
    font-size: 1.1rem;
    margin: 16px 0;
    padding: 16px;
    background: var(--bg-color);
    border-radius: 8px;
}

.result-success .order-no strong {
    color: var(--primary-color);
    font-family: monospace;
}

.result-success .note {
    color: var(--text-muted);
    font-size: 0.9rem;
    margin-top: 16px;
}

/* 반응형 */
@media (max-width: 600px) {
    .container { padding: 12px; }

    .header {
        padding: 30px 16px;
        border-radius: 12px;
    }

    .header h1 { font-size: 1.5rem; }

    .voucher-types {
        grid-template-columns: repeat(2, 1fr);
    }

    .pin-row {
        flex-wrap: wrap;
    }

    .pin-input { flex: 1 1 100%; }
    .amount-input { flex: 1; }

    .lookup-form {
        flex-direction: column;
    }

    .lookup-btn { width: 100%; }
}