:root {
    --colors-scale1: #161616;
    --colors-scale2: #1c1c1c;
    --colors-scale3: #232323;
    --colors-scale4: #282828;
    --colors-scale5: #2e2e2e;
    --colors-scale6: #343434;
    --colors-scale7: #3e3e3e;
    --colors-scale8: #505050;
    --colors-scale9: #707070;
    --colors-scale10: #878787;
    --colors-scale11: #a0a0a0;
    --colors-scale12: #ededed;

    --colors-brand: #3ecf8e;
    --colors-brand-hover: #34b27b;

    --sidebar-width: 260px;
    --header-height: 60px;
}

* {
    box-sizing: border-box;
}

body {
    margin: 0;
    padding: 0;
    background-color: var(--colors-scale2);
    color: var(--colors-scale12);
    font-family: 'Inter', sans-serif;
    font-size: 14px;
    overflow: hidden;
}

a {
    text-decoration: none;
    color: inherit;
}

.app-container {
    display: flex;
    height: 100vh;
    width: 100vw;
}

.page-loader {
    position: absolute;
    inset: 0;
    display: none;
    place-items: center;
    background: rgba(22, 22, 22, 0.7);
    color: #3ecf8e;
    z-index: 5;
    opacity: 0;
    transition: opacity 0.2s ease;
}

.page-loader.visible {
    display: grid;
    opacity: 1;
}

.page-loader.hidden {
    opacity: 0;
}

.loader {
    width: 64px;
    height: 64px;
}

.loader-svg {
    width: 100%;
    height: 100%;
    display: block;
}

.loader-stroke {
    fill: none;
    stroke: currentColor;
    stroke-width: 2.5;
    stroke-linecap: square;
    stroke-linejoin: miter;
    stroke-miterlimit: 10;
    stroke-dasharray: 230;
    stroke-dashoffset: 0;
    animation: w-elastic 2s ease-in-out infinite;
}

@keyframes w-elastic {
    0% {
        stroke-dasharray: 0, 230;
        stroke-dashoffset: 0;
    }

    50% {
        stroke-dasharray: 230, 230;
        stroke-dashoffset: 0;
    }

    100% {
        stroke-dasharray: 0, 230;
        stroke-dashoffset: -230;
    }
}

.main-content {
    flex: 1;
    display: flex;
    flex-direction: column;
    overflow: hidden;
    background-color: var(--colors-scale2);
    position: relative;
}

.top-header {
    height: var(--header-height);
    border-bottom: 1px solid var(--colors-scale4);
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 32px;
    background-color: var(--colors-scale2);
    gap: 16px;
}

.page-title {
    font-size: 16px;
    font-weight: 600;
    color: var(--colors-scale12);
}

.toolbar-controls {
    display: flex;
    align-items: center;
    gap: 10px;
}

.search-box {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    height: 38px;
    min-width: 260px;
    padding: 0 12px;
    border-radius: 8px;
    border: 1px solid var(--colors-scale5);
    background: var(--colors-scale3);
    color: var(--colors-scale10);
}

.search-box input {
    border: none;
    outline: none;
    background: transparent;
    color: var(--colors-scale12);
    font: inherit;
    width: 100%;
}

.search-box input::placeholder {
    color: var(--colors-scale9);
}

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-height: 38px;
    gap: 8px;
    padding: 8px 14px;
    border-radius: 8px;
    border: 1px solid transparent;
    font-size: 13px;
    font-weight: 600;
    line-height: 1;
    cursor: pointer;
    transition: all 0.15s ease;
}

.btn-primary {
    background: var(--colors-brand);
    color: #111;
    border-color: var(--colors-brand);
}

.btn-primary:hover {
    background: var(--colors-brand-hover);
    border-color: var(--colors-brand-hover);
}

.btn-secondary {
    background: var(--colors-scale3);
    color: var(--colors-scale12);
    border-color: var(--colors-scale6);
}

.btn-secondary:hover {
    background: var(--colors-scale4);
    border-color: var(--colors-scale8);
}

.btn-danger {
    background: transparent;
    color: #ef4444;
    border-color: #ef4444;
}

.btn-danger:hover {
    background: rgba(239, 68, 68, 0.1);
}

.content-scroll {
    flex: 1;
    overflow-y: auto;
    padding: 32px;
    display: grid;
    gap: 20px;
    align-content: start;
    scrollbar-width: thin;
    scrollbar-color: var(--colors-scale6) transparent;
}

.content-scroll::-webkit-scrollbar {
    width: 6px;
}

.content-scroll::-webkit-scrollbar-track {
    background: transparent;
}

.content-scroll::-webkit-scrollbar-thumb {
    background-color: var(--colors-scale6);
    border-radius: 999px;
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: 16px;
}

.card {
    background-color: var(--colors-scale3);
    border: 1px solid var(--colors-scale5);
    border-radius: 8px;
    padding: 20px;
}

.kpi-card {
    display: flex;
    align-items: center;
    gap: 14px;
    padding: 14px 16px;
    min-height: 86px;
}

.kpi-icon {
    width: 46px;
    height: 46px;
    border-radius: 10px;
    background: var(--colors-scale4);
    border: 1px solid var(--colors-scale5);
    display: grid;
    place-items: center;
    color: var(--colors-brand);
    flex-shrink: 0;
}

.kpi-icon svg {
    width: 22px;
    height: 22px;
}

.kpi-data {
    display: flex;
    flex-direction: column;
}

.kpi-value {
    font-size: 26px;
    line-height: 1;
    font-weight: 700;
    color: var(--colors-scale12);
}

.kpi-label {
    margin-top: 6px;
    color: var(--colors-scale10);
    font-size: 12px;
}

.panel {
    padding: 0;
}

.panel-head {
    padding: 16px 20px;
    border-bottom: 1px solid var(--colors-scale5);
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
}

.panel-head h3 {
    margin: 0;
    font-size: 15px;
    font-weight: 600;
}

.badge {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 28px;
    height: 24px;
    padding: 0 8px;
    border-radius: 999px;
    font-size: 12px;
    font-weight: 600;
    color: var(--colors-scale10);
    border: 1px solid var(--colors-scale6);
    background: var(--colors-scale4);
}

.table-responsive {
    width: 100%;
    overflow-x: auto;
}

.articles-table {
    width: 100%;
    border-collapse: collapse;
    min-width: 800px;
    table-layout: auto;
}

.articles-table th {
    text-align: left;
    padding: 12px 20px;
    background-color: var(--colors-scale4);
    color: var(--colors-scale10);
    font-weight: 500;
    border-bottom: 1px solid var(--colors-scale5);
    font-size: 12px;
    text-transform: uppercase;
    letter-spacing: 0.04em;
    white-space: nowrap;
}

.articles-table td {
    padding: 14px 20px;
    border-bottom: 1px solid var(--colors-scale4);
    color: var(--colors-scale11);
    vertical-align: middle;
}

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

.articles-table tr:hover td {
    background-color: var(--colors-scale4);
    color: var(--colors-scale12);
}

.article-title {
    display: block;
    font-weight: 600;
    color: var(--colors-scale12);
    margin-bottom: 4px;
}

.tag {
    display: inline-flex;
    align-items: center;
    padding: 3px 9px;
    border-radius: 999px;
    font-size: 11px;
    font-weight: 600;
    border: 1px solid var(--colors-scale6);
    background: var(--colors-scale4);
    color: var(--colors-scale10);
}

.tag.active {
    background: rgba(62, 207, 142, 0.1);
    border-color: rgba(62, 207, 142, 0.25);
    color: var(--colors-brand);
}

.action-btn {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 6px 10px;
    border-radius: 6px;
    font-size: 12px;
    font-weight: 600;
    border: 1px solid var(--colors-scale6);
    background: var(--colors-scale3);
    color: var(--colors-scale12);
    cursor: pointer;
    margin-right: 6px;
}

.action-btn:hover {
    background: var(--colors-scale4);
    border-color: var(--colors-brand);
    color: var(--colors-brand);
}

.action-btn.delete:hover {
    border-color: #ef4444;
    color: #ef4444;
}

.empty-state {
    text-align: center;
    color: var(--colors-scale10);
    padding: 26px;
}

.modal {
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.6);
    backdrop-filter: blur(2px);
    z-index: 1000;
    display: none;
    place-items: center;
    padding: 20px;
}

.modal.visible {
    display: grid;
}

.modal-dialog {
    width: 100%;
    max-width: 600px;
    background: var(--colors-scale2);
    border: 1px solid var(--colors-scale5);
    border-radius: 12px;
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.5);
    overflow: hidden;
    display: flex;
    flex-direction: column;
}

.modal-header {
    padding: 16px 20px;
    border-bottom: 1px solid var(--colors-scale4);
    display: flex;
    justify-content: space-between;
    align-items: center;
    background: var(--colors-scale3);
}

.modal-title {
    margin: 0;
    font-size: 16px;
    font-weight: 600;
    color: var(--colors-scale12);
}

.btn-close {
    background: transparent;
    border: none;
    color: var(--colors-scale9);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 4px;
    border-radius: 4px;
}

.btn-close:hover {
    background: var(--colors-scale4);
    color: var(--colors-scale12);
}

.modal-body {
    padding: 20px;
    overflow-y: auto;
    max-height: 60vh;
}

.modal-footer {
    padding: 16px 20px;
    border-top: 1px solid var(--colors-scale4);
    display: flex;
    justify-content: flex-end;
    gap: 12px;
    background: var(--colors-scale2);
}

.form-group {
    margin-bottom: 16px;
}

.form-group:last-child {
    margin-bottom: 0;
}

.form-group label {
    display: block;
    margin-bottom: 8px;
    font-weight: 500;
    color: var(--colors-scale11);
}

.form-group .required {
    color: #ef4444;
}

.form-control {
    width: 100%;
    padding: 10px 12px;
    background: var(--colors-scale1);
    border: 1px solid var(--colors-scale5);
    border-radius: 6px;
    color: var(--colors-scale12);
    font-family: inherit;
    font-size: 14px;
    transition: border-color 0.2s;
}

.form-control:focus {
    outline: none;
    border-color: var(--colors-brand);
}

.form-control::placeholder {
    color: var(--colors-scale8);
}

textarea.form-control {
    resize: vertical;
    min-height: 100px;
}

.row-checkbox {
    display: flex;
    align-items: center;
    gap: 10px;
}

.row-checkbox label {
    margin-bottom: 0;
}

@media (max-width: 900px) {
    .app-container {
        flex-direction: column;
    }

    .toolbar-controls {
        width: 100%;
    }

    .search-box {
        flex: 1;
        min-width: 180px;
    }

    .content-scroll {
        padding: 16px;
    }
}