/* ========================================
   收款码管理系统 - 样式表
   ======================================== */

/* 全局重置与基础样式 */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --primary-color: #4f46e5;
    --primary-hover: #4338ca;
    --primary-light: #eef2ff;
    --success-color: #10b981;
    --success-light: #d1fae5;
    --danger-color: #ef4444;
    --danger-light: #fee2e2;
    --warning-color: #f59e0b;
    --warning-light: #fef3c7;
    --gray-50: #f9fafb;
    --gray-100: #f3f4f6;
    --gray-200: #e5e7eb;
    --gray-300: #d1d5db;
    --gray-400: #9ca3af;
    --gray-500: #6b7280;
    --gray-600: #4b5563;
    --gray-700: #374151;
    --gray-800: #1f2937;
    --gray-900: #111827;
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow: 0 1px 3px 0 rgba(0, 0, 0, 0.1), 0 1px 2px 0 rgba(0, 0, 0, 0.06);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
    --radius-sm: 6px;
    --radius: 8px;
    --radius-lg: 12px;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, "Noto Sans SC", sans-serif;
    background-color: var(--gray-50);
    color: var(--gray-800);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* 登录页面 - 科技感背景 */
.login-page {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, #0f0c29 0%, #302b63 50%, #24243e 100%);
    padding: 20px;
    position: relative;
    overflow: hidden;
}

/* 科技感网格背景 */
.login-page::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-image: 
        linear-gradient(rgba(0, 255, 255, 0.03) 1px, transparent 1px),
        linear-gradient(90deg, rgba(0, 255, 255, 0.03) 1px, transparent 1px);
    background-size: 50px 50px;
    animation: gridMove 20s linear infinite;
    pointer-events: none;
}

/* 浮动光点效果 */
.login-page::after {
    content: '';
    position: absolute;
    width: 200%;
    height: 200%;
    top: -50%;
    left: -50%;
    background: radial-gradient(circle, rgba(0, 255, 255, 0.1) 1px, transparent 1px);
    background-size: 100px 100px;
    animation: floatParticles 30s linear infinite;
    pointer-events: none;
}

@keyframes gridMove {
    0% { transform: translate(0, 0); }
    100% { transform: translate(50px, 50px); }
}

@keyframes floatParticles {
    0% { transform: rotate(0deg) translate(0, 0); }
    100% { transform: rotate(360deg) translate(-50px, -50px); }
}

.login-container {
    width: 100%;
    max-width: 420px;
    position: relative;
    z-index: 1;
}

.login-box {
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    padding: 48px 40px;
    border-radius: var(--radius-lg);
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3), 
                0 0 0 1px rgba(255, 255, 255, 0.1);
    border: 1px solid rgba(255, 255, 255, 0.2);
    position: relative;
    overflow: hidden;
}

/* 顶部装饰线 */
.login-box::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: linear-gradient(90deg, 
        transparent 0%, 
        #00ffff 20%, 
        #0080ff 50%, 
        #00ffff 80%, 
        transparent 100%);
    animation: scanLine 3s ease-in-out infinite;
}

@keyframes scanLine {
    0%, 100% { opacity: 0.5; }
    50% { opacity: 1; }
}

.login-box h1 {
    text-align: center;
    color: var(--gray-900);
    font-size: 26px;
    font-weight: 700;
    margin-bottom: 8px;
}

.login-box .subtitle {
    text-align: center;
    color: var(--gray-500);
    font-size: 14px;
    margin-bottom: 32px;
}

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

.login-form label {
    display: block;
    margin-bottom: 6px;
    color: var(--gray-700);
    font-size: 14px;
    font-weight: 500;
}

.login-form input {
    width: 100%;
    padding: 10px 14px;
    border: 1px solid var(--gray-300);
    border-radius: var(--radius);
    font-size: 14px;
    color: var(--gray-800);
    transition: all 0.2s;
    background: white;
}

.login-form input:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(79, 70, 229, 0.1);
}

.login-form input::placeholder {
    color: var(--gray-400);
}

.login-footer {
    margin-top: 24px;
    text-align: center;
    font-size: 14px;
    color: var(--gray-500);
}

.login-footer a {
    color: var(--primary-color);
    text-decoration: none;
    font-weight: 500;
}

.login-footer a:hover {
    text-decoration: underline;
}

.login-footer p {
    margin-bottom: 12px;
    font-size: 13px;
    color: var(--gray-400);
}

/* 按钮样式 */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 10px 18px;
    border: none;
    border-radius: var(--radius);
    font-size: 14px;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.2s;
    text-decoration: none;
    gap: 6px;
    line-height: 1.5;
}

.btn:active {
    transform: scale(0.98);
}

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

.btn-primary:hover {
    background: var(--primary-hover);
}

.btn-secondary {
    background: var(--gray-100);
    color: var(--gray-700);
    border: 1px solid var(--gray-300);
}

.btn-secondary:hover {
    background: var(--gray-200);
}

.btn-success {
    background: var(--success-color);
    color: white;
}

.btn-success:hover {
    background: #059669;
}

.btn-danger {
    background: var(--danger-color);
    color: white;
}

.btn-danger:hover {
    background: #dc2626;
}

.btn-sm {
    padding: 6px 12px;
    font-size: 13px;
}

.btn-block {
    width: 100%;
}

/* 警告框 */
.alert {
    padding: 12px 16px;
    border-radius: var(--radius);
    margin-bottom: 20px;
    font-size: 14px;
}

.alert-error {
    background: var(--danger-light);
    color: #991b1b;
    border: 1px solid #fecaca;
}

.alert-success {
    background: var(--success-light);
    color: #065f46;
    border: 1px solid #a7f3d0;
}

/* 导航栏 */
.navbar {
    background: white;
    border-bottom: 1px solid var(--gray-200);
    padding: 0 24px;
    box-shadow: var(--shadow-sm);
    position: sticky;
    top: 0;
    z-index: 100;
}

.navbar-content {
    max-width: 1280px;
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 64px;
}

.navbar-brand {
    color: var(--gray-900);
    font-size: 18px;
    font-weight: 600;
    text-decoration: none;
    display: flex;
    align-items: center;
    gap: 8px;
}

.navbar-links {
    display: flex;
    gap: 8px;
    align-items: center;
}

.navbar-user {
    color: var(--gray-600);
    font-size: 14px;
    padding: 8px 12px;
}

.navbar-links a {
    color: var(--gray-600);
    text-decoration: none;
    padding: 8px 14px;
    border-radius: var(--radius);
    font-size: 14px;
    font-weight: 500;
    transition: all 0.2s;
}

.navbar-links a:hover {
    background: var(--gray-100);
    color: var(--gray-900);
}

/* 主内容区 */
.main-content {
    max-width: 1280px;
    margin: 0 auto;
    padding: 24px;
}

/* 工具栏 */
.toolbar {
    background: white;
    padding: 16px 20px;
    border-radius: var(--radius-lg);
    margin-bottom: 20px;
    box-shadow: var(--shadow);
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 16px;
    border: 1px solid var(--gray-200);
}

.search-box {
    display: flex;
    gap: 10px;
    flex: 1;
    min-width: 250px;
    max-width: 480px;
}

.search-box input {
    flex: 1;
    padding: 10px 14px;
    border: 1px solid var(--gray-300);
    border-radius: var(--radius);
    font-size: 14px;
    color: var(--gray-800);
    transition: all 0.2s;
}

.search-box input:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(79, 70, 229, 0.1);
}

.search-box input::placeholder {
    color: var(--gray-400);
}

.filter-group {
    display: flex;
    gap: 10px;
    align-items: center;
}

.filter-group select {
    padding: 10px 14px;
    border: 1px solid var(--gray-300);
    border-radius: var(--radius);
    font-size: 14px;
    color: var(--gray-700);
    background: white;
    cursor: pointer;
    transition: all 0.2s;
}

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

/* 表格样式 */
.table-container {
    background: white;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow);
    overflow: hidden;
    border: 1px solid var(--gray-200);
}

.table-responsive {
    overflow-x: auto;
}

table {
    width: 100%;
    border-collapse: collapse;
}

thead {
    background: var(--gray-50);
    border-bottom: 1px solid var(--gray-200);
}

th {
    padding: 14px 16px;
    text-align: left;
    font-size: 13px;
    font-weight: 600;
    color: var(--gray-600);
    text-transform: uppercase;
    letter-spacing: 0.025em;
    white-space: nowrap;
}

td {
    padding: 16px;
    border-bottom: 1px solid var(--gray-100);
    vertical-align: middle;
    font-size: 14px;
    color: var(--gray-700);
}

tbody tr {
    transition: background 0.15s;
}

tbody tr:hover {
    background: var(--gray-50);
}

tbody tr:last-child td {
    border-bottom: none;
}

.qrcode-thumb {
    width: 56px;
    height: 56px;
    object-fit: cover;
    border-radius: var(--radius);
    cursor: pointer;
    transition: all 0.2s;
    border: 1px solid var(--gray-200);
}

.qrcode-thumb:hover {
    transform: scale(1.05);
    box-shadow: var(--shadow-md);
}

.status-badge {
    display: inline-flex;
    align-items: center;
    padding: 4px 10px;
    border-radius: 20px;
    font-size: 12px;
    font-weight: 500;
}

.status-active {
    background: var(--success-light);
    color: #065f46;
}

.status-inactive {
    background: var(--gray-100);
    color: var(--gray-600);
}

.actions {
    display: flex;
    gap: 8px;
}

/* 空状态 */
.empty-state {
    text-align: center;
    padding: 60px 20px;
}

.empty-state-icon {
    font-size: 48px;
    margin-bottom: 16px;
    opacity: 0.4;
}

.empty-state-text {
    font-size: 16px;
    color: var(--gray-500);
    margin-bottom: 20px;
}

/* 模态框 */
.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.5);
    backdrop-filter: blur(4px);
    display: none;
    justify-content: center;
    align-items: center;
    z-index: 1000;
    padding: 20px;
    animation: fadeIn 0.2s ease;
}

@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

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

.modal {
    background: white;
    border-radius: var(--radius-lg);
    width: 100%;
    max-width: 520px;
    max-height: 85vh;
    overflow-y: auto;
    box-shadow: var(--shadow-lg);
    animation: slideUp 0.3s ease;
}

@keyframes slideUp {
    from { 
        opacity: 0;
        transform: translateY(20px);
    }
    to { 
        opacity: 1;
        transform: translateY(0);
    }
}

.modal-header {
    padding: 20px 24px;
    border-bottom: 1px solid var(--gray-200);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.modal-header h2 {
    font-size: 18px;
    font-weight: 600;
    color: var(--gray-900);
}

.modal-close {
    background: none;
    border: none;
    font-size: 24px;
    cursor: pointer;
    color: var(--gray-400);
    padding: 0;
    width: 32px;
    height: 32px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: var(--radius);
    transition: all 0.2s;
}

.modal-close:hover {
    background: var(--gray-100);
    color: var(--gray-600);
}

.modal-body {
    padding: 24px;
}

.modal-footer {
    padding: 16px 24px;
    border-top: 1px solid var(--gray-200);
    display: flex;
    justify-content: flex-end;
    gap: 10px;
    background: var(--gray-50);
    border-radius: 0 0 var(--radius-lg) var(--radius-lg);
}

/* 表单样式 */
.form-group {
    margin-bottom: 20px;
}

.form-group label {
    display: block;
    margin-bottom: 6px;
    color: var(--gray-700);
    font-size: 14px;
    font-weight: 500;
}

.form-group input[type="text"],
.form-group input[type="email"],
.form-group textarea,
.form-group select {
    width: 100%;
    padding: 10px 14px;
    border: 1px solid var(--gray-300);
    border-radius: var(--radius);
    font-size: 14px;
    color: var(--gray-800);
    transition: all 0.2s;
    background: white;
}

.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(79, 70, 229, 0.1);
}

.form-group textarea {
    min-height: 80px;
    resize: vertical;
    font-family: inherit;
}

.form-group input::placeholder,
.form-group textarea::placeholder {
    color: var(--gray-400);
}

/* 图片上传预览 */
.image-upload {
    border: 2px dashed var(--gray-300);
    border-radius: var(--radius);
    padding: 24px;
    text-align: center;
    cursor: pointer;
    transition: all 0.2s;
    background: var(--gray-50);
}

.image-upload:hover {
    border-color: var(--primary-color);
    background: var(--primary-light);
}

.image-upload input[type="file"] {
    display: none;
}

.image-preview {
    max-width: 180px;
    max-height: 180px;
    margin: 0 auto;
    border-radius: var(--radius);
    border: 1px solid var(--gray-200);
}

.image-placeholder {
    color: var(--gray-400);
    font-size: 14px;
}

.image-placeholder::before {
    content: "+";
    display: block;
    font-size: 32px;
    margin-bottom: 8px;
    color: var(--gray-300);
}

/* 图片查看模态框 */
.image-modal {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.9);
    display: none;
    justify-content: center;
    align-items: center;
    z-index: 2000;
    cursor: pointer;
    animation: fadeIn 0.2s ease;
}

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

.image-modal img {
    max-width: 90%;
    max-height: 90%;
    border-radius: var(--radius);
    box-shadow: var(--shadow-lg);
}

/* 展示页面 */
.display-page {
    min-height: 100vh;
    background: var(--gray-50);
}

.display-header {
    background: white;
    border-bottom: 1px solid var(--gray-200);
    padding: 16px 24px;
}

.header-content {
    max-width: 1280px;
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 20px;
    flex-wrap: wrap;
}

.header-left {
    display: flex;
    align-items: center;
    gap: 16px;
}

.display-header h1 {
    font-size: 20px;
    font-weight: 700;
    color: var(--gray-900);
}

.header-link {
    color: var(--primary-color);
    text-decoration: none;
    font-weight: 500;
    font-size: 14px;
    padding: 6px 12px;
    border-radius: var(--radius);
    transition: all 0.2s;
}

.header-link:hover {
    background: var(--primary-light);
    text-decoration: none;
}

.display-search {
    min-width: 280px;
    max-width: 400px;
}

.display-search input {
    width: 100%;
    padding: 8px 14px;
    border: 1px solid var(--gray-300);
    border-radius: var(--radius);
    font-size: 14px;
    color: var(--gray-800);
    transition: all 0.2s;
    background: white;
}

.display-search input:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(79, 70, 229, 0.1);
}

.display-search input::placeholder {
    color: var(--gray-400);
}

.qrcode-grid {
    max-width: 1280px;
    margin: 24px auto;
    padding: 0 24px;
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 16px;
}

.qrcode-card {
    background: white;
    border-radius: var(--radius);
    overflow: hidden;
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--gray-200);
    transition: all 0.2s;
    cursor: pointer;
}

.qrcode-card:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-md);
    border-color: var(--primary-color);
}

.qrcode-card-image {
    width: 100%;
    aspect-ratio: 1 / 1;
    object-fit: cover;
    background: var(--gray-100);
    display: block;
}

.qrcode-card-body {
    padding: 12px;
}

.qrcode-card-title {
    font-size: 15px;
    font-weight: 600;
    margin-bottom: 8px;
    color: var(--gray-900);
    line-height: 1.3;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.qrcode-card-info {
    font-size: 13px;
    color: var(--gray-600);
    margin-bottom: 4px;
    line-height: 1.4;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.qrcode-card-info strong {
    color: var(--gray-700);
    font-weight: 500;
}

/* 响应式设计 */
@media (max-width: 768px) {
    .navbar-content {
        flex-direction: column;
        height: auto;
        padding: 12px 0;
        gap: 8px;
    }

    .navbar-brand {
        font-size: 16px;
    }

    .main-content {
        padding: 16px;
    }

    .toolbar {
        flex-direction: column;
        align-items: stretch;
        padding: 14px;
    }

    .search-box {
        order: 1;
        max-width: none;
    }

    .filter-group {
        order: 2;
        justify-content: space-between;
    }

    th, td {
        padding: 12px;
        font-size: 13px;
    }

    .qrcode-thumb {
        width: 48px;
        height: 48px;
    }

    .actions {
        flex-direction: column;
        gap: 6px;
    }

    .qrcode-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 12px;
        padding: 0 16px;
        margin: 16px auto;
    }

    .qrcode-card-title {
        font-size: 14px;
    }

    .qrcode-card-info {
        font-size: 12px;
    }

    .qrcode-card-body {
        padding: 10px;
    }

    .login-box {
        padding: 32px 24px;
    }

    .modal {
        max-height: 90vh;
        margin: 10px;
    }

    .modal-body {
        padding: 20px;
    }
}

@media (max-width: 480px) {
    .qrcode-grid {
        grid-template-columns: 1fr;
    }

    .header-content {
        flex-direction: column;
        align-items: stretch;
    }

    .header-left {
        justify-content: space-between;
    }

    .display-search {
        max-width: none;
    }

    .filter-group {
        flex-direction: column;
    }

    .filter-group select,
    .filter-group .btn {
        width: 100%;
    }
}