:root {
    /* Cloudflare Yellow Theme */
    --cf-yellow: #FBAD41;
    --cf-yellow-dark: #F49D0C;
    --cf-yellow-light: #FFC266;
    --cf-yellow-glow: rgba(251, 173, 65, 0.3);

    /* Light Theme Colors */
    --bg-primary: #FFFFFF;
    --bg-secondary: #F9FAFB;
    --bg-card: #FFFFFF;
    --bg-elevated: #F3F4F6;

    /* Text Colors */
    --text-primary: #1F2937;
    --text-secondary: #6B7280;
    --text-muted: #9CA3AF;

    /* Border & Divider */
    --border-color: #E5E7EB;
    --border-light: #F3F4F6;

    /* Status Colors */
    --success: #10B981;
    --danger: #EF4444;
    --warning: #F59E0B;

    /* Shadows */
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1);
    --shadow-glow: 0 0 20px var(--cf-yellow-glow);
}

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

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    background: linear-gradient(135deg, #FFFFFF 0%, #F9FAFB 100%);
    color: var(--text-primary);
    line-height: 1.6;
    min-height: 100vh;
}

/* ========== Login Page ========== */
.login-page {
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 100vh;
    padding: 1rem;
    background: linear-gradient(135deg, #FFF8E7 0%, #FFFBF0 100%);
    position: relative;
    overflow: hidden;
}

.login-page::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -50%;
    width: 100%;
    height: 100%;
    background: radial-gradient(circle, rgba(251, 173, 65, 0.1) 0%, transparent 70%);
    animation: float 20s ease-in-out infinite;
}

@keyframes float {

    0%,
    100% {
        transform: translate(0, 0) rotate(0deg);
    }

    50% {
        transform: translate(-20px, 20px) rotate(5deg);
    }
}

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

.login-card {
    background: var(--bg-card);
    padding: 2.5rem;
    border-radius: 1rem;
    border: 1px solid var(--border-color);
    box-shadow: var(--shadow-xl), 0 0 40px rgba(251, 173, 65, 0.15);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.login-card:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-xl), 0 0 50px rgba(251, 173, 65, 0.2);
}

.login-header {
    text-align: center;
    margin-bottom: 2rem;
}

.login-header h1 {
    background: linear-gradient(135deg, var(--cf-yellow-dark) 0%, var(--cf-yellow) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    font-size: 1.75rem;
    font-weight: 700;
    margin-bottom: 0.5rem;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
}

.login-header h1::before {
    content: "☁";
    font-size: 2rem;
    filter: drop-shadow(0 0 8px var(--cf-yellow-glow));
    -webkit-text-fill-color: initial;
    background: none;
}

.login-header p {
    color: var(--text-secondary);
    font-size: 0.875rem;
}

/* Login form specific styles */
.login-page input {
    transition: all 0.3s ease;
}

.login-page input:hover {
    border-color: var(--cf-yellow-light);
}

.login-page .btn-primary {
    margin-top: 0.5rem;
    font-size: 1rem;
    padding: 0.875rem 1.5rem;
}

/* ========== Dashboard Layout ========== */
.app-container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 1.5rem;
}

header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 2rem;
    padding: 1rem 1.5rem;
    background: var(--bg-card);
    border-radius: 0.75rem;
    border: 1px solid var(--border-color);
    box-shadow: var(--shadow-md);
}

.logo {
    font-size: 1.5rem;
    font-weight: 700;
    background: linear-gradient(135deg, var(--cf-yellow-dark) 0%, var(--cf-yellow) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.logo::before {
    content: "☁";
    font-size: 1.75rem;
    filter: drop-shadow(0 0 8px var(--cf-yellow-glow));
}

/* Mobile Menu Toggle */
.mobile-menu-toggle {
    display: none;
    background: transparent;
    border: 1px solid var(--border-color);
    color: var(--text-primary);
    padding: 0.5rem 0.75rem;
    border-radius: 0.5rem;
    cursor: pointer;
    font-size: 1.25rem;
    transition: all 0.2s;
}

.mobile-menu-toggle:hover {
    background: var(--bg-elevated);
    border-color: var(--cf-yellow);
}

/* Grid Layout */
.dashboard-grid {
    display: grid;
    grid-template-columns: 300px 1fr;
    gap: 1.5rem;
}

/* ========== Sidebar ========== */
.sidebar {
    position: relative;
}

.domain-list {
    background: var(--bg-card);
    border-radius: 0.75rem;
    overflow: hidden;
    border: 1px solid var(--border-color);
    box-shadow: var(--shadow-md);
    position: sticky;
    top: 1.5rem;
}

.domain-list-header {
    padding: 1.25rem;
    background: linear-gradient(135deg, rgba(251, 173, 65, 0.15) 0%, rgba(251, 173, 65, 0.08) 100%);
    font-weight: 600;
    display: flex;
    justify-content: space-between;
    align-items: center;
    border-bottom: 1px solid var(--border-color);
}

.domain-item {
    padding: 1rem 1.25rem;
    cursor: pointer;
    display: flex;
    justify-content: space-between;
    align-items: center;
    border-bottom: 1px solid var(--border-color);
    transition: all 0.2s ease;
    position: relative;
}

.domain-item:last-child {
    border-bottom: none;
}

.domain-item::before {
    content: '';
    position: absolute;
    left: 0;
    top: 0;
    bottom: 0;
    width: 3px;
    background: var(--cf-yellow);
    transform: scaleY(0);
    transition: transform 0.2s ease;
}

.domain-item:hover {
    background: rgba(251, 173, 65, 0.1);
}

.domain-item:hover::before {
    transform: scaleY(1);
}

.domain-item.active {
    background: linear-gradient(90deg, rgba(251, 173, 65, 0.2) 0%, rgba(251, 173, 65, 0.08) 100%);
}

.domain-item.active::before {
    transform: scaleY(1);
}

.delete-icon {
    color: var(--text-muted);
    padding: 0.375rem;
    border-radius: 0.375rem;
    transition: all 0.2s;
    opacity: 0.6;
}

.delete-icon:hover {
    color: var(--danger);
    background: rgba(239, 68, 68, 0.15);
    opacity: 1;
}

/* ========== Main Content Area ========== */
.content-area {
    background: var(--bg-card);
    border-radius: 0.75rem;
    padding: 2rem;
    border: 1px solid var(--border-color);
    box-shadow: var(--shadow-md);
    min-height: 500px;
}

.content-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 2rem;
    padding-bottom: 1rem;
    border-bottom: 1px solid var(--border-color);
}

.current-domain {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--cf-yellow-dark);
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.current-domain::before {
    content: "🌐";
    font-size: 1.25rem;
}

/* ========== Tables ========== */
table {
    width: 100%;
    border-collapse: collapse;
}

thead {
    background: rgba(251, 173, 65, 0.08);
}

th {
    text-align: left;
    padding: 1rem;
    color: var(--text-secondary);
    border-bottom: 2px solid var(--border-color);
    font-size: 0.875rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

td {
    padding: 1rem;
    border-bottom: 1px solid var(--border-color);
    color: var(--text-primary);
}

tr {
    transition: background 0.2s;
}

tbody tr:hover {
    background: rgba(251, 173, 65, 0.05);
}

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

/* ========== Forms ========== */
.form-group {
    margin-bottom: 1.25rem;
}

label {
    display: block;
    margin-bottom: 0.5rem;
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--text-secondary);
}

input,
select {
    width: 100%;
    padding: 0.75rem 1rem;
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: 0.5rem;
    color: var(--text-primary);
    font-family: inherit;
    font-size: 0.9375rem;
    transition: all 0.2s;
}

input:focus,
select:focus {
    outline: none;
    border-color: var(--cf-yellow);
    box-shadow: 0 0 0 3px var(--cf-yellow-glow);
    background: var(--bg-primary);
}

input::placeholder {
    color: var(--text-muted);
}

/* ========== Buttons ========== */
.btn {
    padding: 0.625rem 1.25rem;
    border-radius: 1.25rem;
    border: none;
    cursor: pointer;
    font-weight: 600;
    font-family: inherit;
    font-size: 0.9375rem;
    transition: all 0.2s ease;
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    white-space: nowrap;
}

.btn-primary {
    background: linear-gradient(135deg, var(--cf-yellow) 0%, var(--cf-yellow-dark) 100%);
    color: #1F2937;
    box-shadow: 0 4px 12px rgba(251, 173, 65, 0.3);
    border-radius: 0.75rem;
    padding: 0.625rem 0.75rem;
    border: none;
    cursor: pointer;
    font-weight: 600;
    font-family: inherit;
    font-size: 0.9375rem;
    transition: all 0.2s ease;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    white-space: nowrap;
}

.btn-primary:hover {
    background: linear-gradient(135deg, var(--cf-yellow-light) 0%, var(--cf-yellow) 100%);
    box-shadow: 0 6px 16px rgba(251, 173, 65, 0.4);
    transform: translateY(-1px);
}

.btn-primary:active {
    transform: translateY(0);
}

.btn-sm {
    padding: 0.375rem 0.75rem;
    font-size: 0.875rem;
}

.btn-outline {
    background: transparent;
    border: 1px solid var(--border-color);
    color: var(--text-primary);
}

.btn-outline:hover {
    border-color: var(--cf-yellow);
    background: rgba(251, 173, 65, 0.1);
    color: var(--cf-yellow-dark);
}

.full-width {
    width: 100%;
    justify-content: center;
}

/* ========== Modal ========== */
.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.5);
    display: none;
    align-items: center;
    justify-content: center;
    z-index: 1000;
    backdrop-filter: blur(8px);
}

.modal-overlay[style*="display: block"] {
    display: flex !important;
}

.modal {
    background: var(--bg-card);
    padding: 2rem;
    border-radius: 1rem;
    width: 90%;
    max-width: 540px;
    border: 1px solid var(--border-color);
    box-shadow: var(--shadow-xl);
    max-height: 90vh;
    overflow-y: auto;
}

.modal-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1.5rem;
    padding-bottom: 1rem;
    border-bottom: 1px solid var(--border-color);
}

.modal-header h3 {
    font-size: 1.25rem;
    color: var(--cf-yellow-dark);
}

.modal-actions {
    display: flex;
    justify-content: flex-end;
    gap: 0.75rem;
    margin-top: 1.5rem;
    padding-top: 1rem;
    border-top: 1px solid var(--border-color);
}

/* ========== Status Badges ========== */
.badge {
    padding: 0.25rem 0.75rem;
    border-radius: 1rem;
    font-size: 0.75rem;
    font-weight: 600;
    display: inline-flex;
    align-items: center;
    gap: 0.375rem;
}

.badge-orange {
    background: rgba(251, 173, 65, 0.2);
    color: var(--cf-yellow-dark);
    border: 1px solid rgba(251, 173, 65, 0.3);
}

.badge-orange::before {
    content: "☁";
    font-size: 0.875rem;
}

.badge-gray {
    background: rgba(156, 163, 175, 0.15);
    color: var(--text-secondary);
    border: 1px solid var(--border-color);
}

/* ========== Utility Classes ========== */
.text-center {
    text-align: center;
}

.error-msg {
    color: var(--danger);
    font-size: 0.875rem;
    margin-bottom: 1rem;
    padding: 0.75rem;
    background: rgba(239, 68, 68, 0.1);
    border-radius: 0.5rem;
    border-left: 3px solid var(--danger);
}

.error-msg:empty {
    display: none;
    margin-bottom: 0;
    padding: 0;
}

.empty-state {
    padding: 4rem 2rem;
    text-align: center;
    color: var(--text-muted);
}

.empty-state h3 {
    color: var(--text-secondary);
    margin-bottom: 0.5rem;
}

/* ========== Mobile Responsive ========== */
@media (max-width: 768px) {
    .app-container {
        padding: 1rem;
    }

    header {
        padding: 0.75rem 1rem;
        margin-bottom: 1rem;
    }

    .logo {
        font-size: 1.125rem;
    }

    .mobile-menu-toggle {
        display: block;
    }

    .dashboard-grid {
        grid-template-columns: 1fr;
        gap: 1rem;
    }

    .sidebar {
        position: fixed;
        top: 0;
        left: -100%;
        width: 280px;
        height: 100vh;
        background: var(--bg-primary);
        z-index: 999;
        transition: left 0.3s ease;
        padding: 1rem;
        overflow-y: auto;
    }

    .sidebar.mobile-open {
        left: 0;
        box-shadow: 4px 0 20px rgba(0, 0, 0, 0.15);
    }

    .domain-list {
        position: static;
    }

    .content-area {
        padding: 1.25rem;
    }

    .content-header {
        flex-direction: column;
        align-items: flex-start;
        gap: 1rem;
    }

    .current-domain {
        font-size: 1.25rem;
    }

    /* Mobile Table - Compact Horizontal Scroll */
    .content-area {
        padding: 1rem;
    }

    table {
        display: table;
        width: 100%;
        min-width: 600px;
        font-size: 0.875rem;
    }

    thead {
        display: table-header-group;
    }

    tbody {
        display: table-row-group;
    }

    tr {
        display: table-row;
    }

    th,
    td {
        display: table-cell;
        padding: 0.75rem 0.5rem;
        white-space: nowrap;
    }

    th {
        font-size: 0.75rem;
        position: sticky;
        top: 0;
        background: rgba(251, 173, 65, 0.08);
        z-index: 10;
    }

    /* 让内容列可以换行 */
    td:nth-child(3) {
        white-space: normal;
        max-width: 150px;
        word-break: break-all;
    }

    /* 操作列按钮优化 */
    td:last-child {
        white-space: nowrap;
    }

    td:last-child .btn {
        padding: 0.375rem 0.625rem;
        font-size: 0.75rem;
        margin: 0 0.125rem;
    }

    /* 添加横向滚动容器 */
    .content-area>div {
        overflow-x: auto;
        -webkit-overflow-scrolling: touch;
    }

    .modal {
        width: 95%;
        padding: 1.5rem;
    }

    .modal-actions {
        flex-direction: column;
    }

    .modal-actions .btn {
        width: 100%;
    }
}

/* Mobile Overlay */
.mobile-overlay {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.3);
    z-index: 998;
    backdrop-filter: blur(4px);
}

.mobile-overlay.active {
    display: block;
}

@media (max-width: 480px) {
    .login-card {
        padding: 1.5rem;
    }

    .btn {
        padding: 0.75rem 1rem;
    }
}

/* Modal Close Button */
.close-modal {
    border-radius: 0.5rem;
}

/* Domain Action Buttons */
.domain-actions {
    display: flex;
    gap: 0.5rem;
}

.edit-icon,
.delete-icon {
    padding: 0.25rem 0.5rem;
    border-radius: 0.375rem;
    font-size: 0.75rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s ease;
    border: 1px solid;
}

.edit-icon {
    color: #3b82f6;
    border-color: #3b82f6;
    background: rgba(59, 130, 246, 0.1);
}

.edit-icon:hover {
    background: rgba(59, 130, 246, 0.2);
    transform: translateY(-1px);
}

.delete-icon {
    color: #ef4444;
    border-color: #ef4444;
    background: rgba(239, 68, 68, 0.1);
}

.delete-icon:hover {
    background: rgba(239, 68, 68, 0.2);
    transform: translateY(-1px);
}

/* Drag Handle */
.drag-handle {
    cursor: move;
    color: var(--text-muted);
    padding: 0 0.75rem 0 0;
    margin-left: -0.5rem;
    font-size: 1.1rem;
    user-select: none;
    display: inline-flex;
    align-items: center;
    transition: color 0.2s ease;
}

.drag-handle:hover {
    color: var(--cf-yellow);
}

.domain-name {
    flex: 1;
}

/* Domain item drag state */
.domain-item.dragging {
    opacity: 0.5;
    transform: scale(0.95);
    transition: all 0.2s ease;
}

.domain-item {
    transition: transform 0.2s ease, opacity 0.2s ease;
}