/* ========================================
   仓库管理系统 - 现代化设计风格
   Modern Minimalist Design System
   ======================================== */

/* ========== CSS Variables ========== */
:root {
    /* 主色调 */
    --bg-primary: #FAF9F7;
    --bg-card: #FFFFFF;
    --bg-secondary: #F5F3F0;
    --bg-accent: #F0EBE5;
    
    /* 文字颜色 */
    --text-primary: #2D2D2D;
    --text-secondary: #8B8680;
    --text-muted: #A5A09A;
    
    /* 强调色 */
    --accent-primary: #C17F59;
    --accent-success: #7FB069;
    --accent-warning: #E6A571;
    --accent-info: #8B9DC3;
    --accent-danger: #D46A6A;
    
    /* 边框 */
    --border-color: #E8E4DE;
    --border-light: #F0EBE5;
    
    /* 阴影 */
    --shadow-soft: 0 4px 20px rgba(0, 0, 0, 0.04);
    --shadow-medium: 0 8px 40px rgba(0, 0, 0, 0.08);
    --shadow-hover: 0 12px 48px rgba(0, 0, 0, 0.12);
    
    /* 圆角 */
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 16px;
    --radius-xl: 20px;
    
    /* 间距 */
    --nav-height: 72px;
    --sidebar-width: 280px;
}

/* ========== Base Styles ========== */
body {
    background-color: var(--bg-primary) !important;
    color: var(--text-primary);
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', sans-serif;
    letter-spacing: -0.01em;
    padding-bottom: 80px !important;
}

body.login-bg {
    background: linear-gradient(135deg, var(--bg-primary) 0%, var(--bg-accent) 100%) !important;
}

/* ========== Typography ========== */
h1, h2, h3, h4, h5, h6 {
    font-weight: 600;
    color: var(--text-primary);
}

.navbar-brand {
    font-weight: 600;
    color: var(--text-primary) !important;
    font-size: 1.25rem;
}

.card-title {
    font-weight: 600;
}

/* ========== Navigation ========== */
.navbar {
    background-color: var(--bg-card) !important;
    box-shadow: var(--shadow-soft);
    padding: 0.75rem 1.5rem;
    border-bottom: 1px solid var(--border-color);
}

.navbar-dark {
    background: linear-gradient(135deg, #2D2D2D 0%, #1a1a1a 100%) !important;
    box-shadow: var(--shadow-soft);
}

.navbar-dark .navbar-brand {
    color: white !important;
}

.navbar-dark .navbar-nav .nav-link {
    color: rgba(255, 255, 255, 0.8);
    padding: 0.75rem 1.25rem;
    border-radius: var(--radius-sm);
    transition: all 0.2s ease;
    font-weight: 500;
}

.navbar-dark .navbar-nav .nav-link:hover {
    color: white;
    background-color: rgba(255, 255, 255, 0.1);
}

.navbar-dark .navbar-nav .nav-link.active {
    color: white !important;
    background-color: var(--accent-primary);
}

/* 导航栏内的白色文本 */
.navbar-dark .text-white {
    color: white !important;
}

.navbar-toggler {
    border: 1px solid rgba(255, 255, 255, 0.3);
    padding: 0.5rem;
}

.navbar-dark .navbar-toggler {
    border-color: rgba(255, 255, 255, 0.3);
}

.navbar-toggler-icon {
    background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 30 30'%3e%3cpath stroke='rgba(255, 255, 255, 0.8)' stroke-linecap='round' stroke-miterlimit='10' stroke-width='2' d='M4 7h22M4 15h22M4 23h22'/%3e%3c/svg%3e");
}

/* ========== Cards ========== */
.card {
    background-color: var(--bg-card);
    border: 1px solid var(--border-light);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-soft);
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    overflow: hidden;
}

.card:hover {
    box-shadow: var(--shadow-medium);
    transform: translateY(-2px);
}

.card-header {
    background-color: var(--bg-card) !important;
    border-bottom: 1px solid var(--border-light);
    padding: 1.25rem 1.5rem;
    font-weight: 600;
    color: var(--text-primary);
}

.card-body {
    padding: 1.5rem;
}

/* Dashboard Cards */
.dashboard-card {
    background-color: var(--bg-card);
    border: 1px solid var(--border-light);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-soft);
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.dashboard-card:hover {
    box-shadow: var(--shadow-hover);
    transform: translateY(-4px);
}

.dashboard-card .card-body {
    padding: 2rem;
}

.dashboard-card h2 {
    font-size: 2.5rem;
    font-weight: 700;
    margin: 0.5rem 0;
}

.dashboard-card .card-title {
    color: rgba(255, 255, 255, 0.9);
    font-weight: 500;
    font-size: 1rem;
}

/* Page Header */
.page-header {
    background: linear-gradient(135deg, var(--accent-primary) 0%, #D4956F 100%);
    color: white;
    padding: 2rem;
    border-radius: var(--radius-xl);
    margin-bottom: 2rem;
    box-shadow: var(--shadow-medium);
}

.welcome-header {
    background: linear-gradient(135deg, var(--accent-primary) 0%, #D4956F 100%);
    color: white;
    padding: 2.5rem;
    border-radius: var(--radius-xl);
    margin-bottom: 2rem;
    box-shadow: var(--shadow-medium);
}

.welcome-header h1, .welcome-header .display-6 {
    font-weight: 700;
    margin-bottom: 0.5rem;
}

.welcome-header .lead {
    opacity: 0.95;
    font-weight: 400;
}

/* ========== Buttons ========== */
.btn {
    font-weight: 600;
    padding: 0.625rem 1.5rem;
    border-radius: var(--radius-sm);
    transition: all 0.2s ease;
    border: none;
}

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

.btn-primary:hover {
    background: #B06F49;
    transform: translateY(-2px);
    box-shadow: 0 8px 24px rgba(193, 127, 89, 0.3);
}

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

.btn-success:hover {
    background: #6FA059;
    transform: translateY(-2px);
    box-shadow: 0 8px 24px rgba(127, 176, 105, 0.3);
}

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

.btn-warning:hover {
    background: #D69561;
    transform: translateY(-2px);
    box-shadow: 0 8px 24px rgba(230, 165, 113, 0.3);
}

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

.btn-info:hover {
    background: #7B8DB3;
    transform: translateY(-2px);
    box-shadow: 0 8px 24px rgba(139, 157, 195, 0.3);
}

.btn-outline-primary {
    color: var(--accent-primary);
    border: 2px solid var(--accent-primary);
    background: transparent;
}

.btn-outline-primary:hover {
    background: var(--accent-primary);
    color: white;
    transform: translateY(-2px);
}

.btn-outline-success {
    color: var(--accent-success);
    border: 2px solid var(--accent-success);
    background: transparent;
}

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

.btn-outline-warning {
    color: var(--accent-warning);
    border: 2px solid var(--accent-warning);
    background: transparent;
}

.btn-outline-warning:hover {
    background: var(--accent-warning);
    color: white;
}

.btn-outline-light {
    color: var(--text-primary);
    border-color: var(--border-color);
}

.btn-outline-light:hover {
    background-color: var(--bg-secondary);
    border-color: var(--border-color);
    color: var(--text-primary);
}

.btn-sm {
    padding: 0.4rem 0.75rem;
    font-size: 0.875rem;
}

/* ========== Tables ========== */
.table {
    margin-bottom: 0;
}

.table thead th {
    background-color: var(--bg-secondary) !important;
    font-weight: 600;
    color: var(--text-primary);
    border-bottom: 2px solid var(--border-color);
    padding: 1rem 1.25rem;
    font-size: 0.875rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

/* 设置页面表格表头特殊样式 */
.settings-card .table thead th {
    background-color: var(--bg-accent) !important;
    color: var(--text-primary);
    font-weight: 600;
}

.table tbody tr {
    transition: all 0.2s ease;
}

.table tbody tr:hover {
    background-color: var(--bg-secondary) !important;
}

.table td {
    padding: 1rem 1.25rem;
    vertical-align: middle;
}

.table tfoot {
    font-weight: 600;
    background-color: var(--bg-secondary);
}

.table-hover tbody tr:hover {
    background-color: var(--bg-secondary) !important;
}

/* ========== Forms ========== */
.form-control, .form-select {
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    padding: 0.75rem 1rem;
    background-color: var(--bg-card);
    transition: all 0.2s ease;
}

.form-control:focus, .form-select:focus {
    border-color: var(--accent-primary);
    box-shadow: 0 0 0 3px rgba(193, 127, 89, 0.1);
    outline: none;
}

.form-label {
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 0.5rem;
}

.input-group-text {
    background-color: var(--bg-secondary);
    border: 1px solid var(--border-color);
    color: var(--text-secondary);
}

.form-group {
    margin-bottom: 1.25rem;
}

/* ========== Badges ========== */
.badge {
    font-weight: 600;
    padding: 0.4rem 0.75rem;
    border-radius: 20px;
    font-size: 0.75rem;
}

.bg-primary {
    background-color: var(--accent-primary) !important;
}

.bg-success {
    background-color: var(--accent-success) !important;
}

.bg-warning {
    background-color: var(--accent-warning) !important;
}

.bg-info {
    background-color: var(--accent-info) !important;
}

.bg-danger {
    background-color: var(--accent-danger) !important;
}

.text-primary {
    color: var(--accent-primary) !important;
}

.text-success {
    color: var(--accent-success) !important;
}

.text-warning {
    color: var(--accent-warning) !important;
}

.text-info {
    color: var(--accent-info) !important;
}

.text-danger {
    color: var(--accent-danger) !important;
}

/* ========== Sidebar ========== */
.offcanvas {
    background-color: var(--bg-card);
    border-right: 1px solid var(--border-color);
    width: var(--sidebar-width) !important;
}

.offcanvas-body .nav-link {
    color: var(--text-secondary);
    padding: 1rem 1.5rem;
    border-left: 3px solid transparent;
    transition: all 0.2s ease;
    font-weight: 500;
}

.offcanvas-body .nav-link:hover {
    color: var(--accent-primary);
    background-color: var(--bg-secondary);
    border-left-color: var(--accent-primary);
}

.offcanvas-body .nav-link.active {
    color: var(--accent-primary) !important;
    background-color: var(--bg-accent);
    border-left-color: var(--accent-primary);
}

/* ========== Nav Pills (Settings Page) ========== */
.nav-pills {
    gap: 0.5rem;
}

.nav-pills .nav-link {
    color: var(--text-secondary);
    background-color: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    padding: 0.75rem 1.25rem;
    font-weight: 500;
    transition: all 0.2s ease;
}

.nav-pills .nav-link:hover {
    color: var(--accent-primary);
    background-color: var(--bg-accent);
    border-color: var(--accent-primary);
}

.nav-pills .nav-link.active {
    color: white !important;
    background-color: var(--accent-primary) !important;
    border-color: var(--accent-primary);
    box-shadow: 0 4px 12px rgba(193, 127, 89, 0.3);
}

/* ========== Login Page ========== */
.login-container {
    max-width: 440px;
    margin: 0 auto;
    width: 100%;
}

.login-card {
    background: var(--bg-card);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-medium);
    overflow: hidden;
    border: none;
}

.login-header {
    background: linear-gradient(135deg, var(--accent-primary) 0%, #D4956F 100%);
    color: white;
    padding: 2.5rem;
    text-align: center;
}

.login-header h2 {
    font-weight: 700;
    margin-bottom: 0.5rem;
}

.login-body {
    padding: 2.5rem;
}

.login-footer {
    background-color: rgba(193, 127, 89, 0.1);
    padding: 1rem;
}

/* ========== Modals ========== */
.modal-content {
    background-color: var(--bg-card);
    border: 1px solid var(--border-light);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-medium);
}

.modal-header {
    border-bottom: 1px solid var(--border-light);
    padding: 1.5rem;
}

.modal-header .btn-close {
    opacity: 0.5;
}

.modal-header .btn-close:hover {
    opacity: 1;
}

.modal-title {
    font-weight: 700;
}

.modal-body {
    padding: 1.5rem;
}

.modal-footer {
    border-top: 1px solid var(--border-light);
    padding: 1rem 1.5rem;
}

/* ========== Alerts ========== */
.alert {
    border-radius: var(--radius-md);
    border: none;
    padding: 1rem 1.25rem;
}

.alert-info {
    background-color: rgba(139, 157, 195, 0.1);
    color: var(--accent-info);
}

.alert-success {
    background-color: rgba(127, 176, 105, 0.1);
    color: var(--accent-success);
}

.alert-warning {
    background-color: rgba(230, 165, 113, 0.1);
    color: #C68642;
}

.alert-danger {
    background-color: rgba(212, 106, 106, 0.1);
    color: var(--accent-danger);
}

/* ========== Footer ========== */
footer {
    background-color: var(--bg-card) !important;
    border-top: 1px solid var(--border-color);
    padding: 1rem 0;
    text-align: center;
    color: var(--text-secondary);
    font-size: 0.875rem;
}

footer a {
    color: var(--accent-primary);
    text-decoration: none;
    transition: color 0.2s ease;
}

footer a:hover {
    color: var(--text-primary);
}

/* ========== Utility Classes ========== */
.main-content {
    padding: 2rem;
}

.border-primary {
    border-color: var(--accent-primary) !important;
}

.border-success {
    border-color: var(--accent-success) !important;
}

.border-warning {
    border-color: var(--accent-warning) !important;
}

.border-info {
    border-color: var(--accent-info) !important;
}

.btn-action {
    margin-right: 0.5rem;
}

/* ========== Responsive Design ========== */
@media (min-width: 768px) {
    .main-content {
        margin-left: 0;
        width: 100%;
    }
    
    .offcanvas {
        position: fixed;
        top: var(--nav-height);
        left: 0;
        height: calc(100vh - var(--nav-height));
        transform: none !important;
        visibility: visible !important;
        box-shadow: var(--shadow-soft);
        z-index: 1020;
    }
    
    .offcanvas-header {
        display: none;
    }
    
    /* 移除会导致导航栏偏移的样式 */
    /* .navbar {
        left: var(--sidebar-width);
    } */
    
    body {
        padding-left: 0;
    }
}

@media (max-width: 767.98px) {
    .welcome-header {
        padding: 1.5rem;
    }
    
    .welcome-header h1, .welcome-header .display-6 {
        font-size: 1.5rem;
    }
    
    .dashboard-card .card-body {
        padding: 1.5rem;
    }
    
    .dashboard-card h2 {
        font-size: 2rem;
    }
    
    .card-body {
        padding: 1rem;
    }
    
    .table thead th,
    .table td {
        padding: 0.75rem;
    }
}

/* ========== Animations ========== */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

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

.card, .dashboard-card {
    animation: fadeInUp 0.5s ease-out;
}

/* ========== Custom Scrollbar ========== */
::-webkit-scrollbar {
    width: 8px;
    height: 8px;
}

::-webkit-scrollbar-track {
    background: var(--bg-secondary);
}

::-webkit-scrollbar-thumb {
    background: var(--border-color);
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--text-muted);
}

/* ========== Selection ========== */
::selection {
    background-color: var(--accent-primary);
    color: white;
}