:root {
        --primary-color: #005A9C;
        --primary-dark: #003570;
        --secondary-color: #FFC107;
        --light-bg: #f9faff;
        --dark-text: #2c3e50;
        --light-text: #7f8c8d;
        --white: #ffffff;
        --border-color: #ecf0f1;
        --line: rgba(44, 62, 80, 0.12);
        --shadow: 0 4px 15px rgba(0, 0, 0, 0.05);
        --shadow-lg: 0 8px 25px rgba(0, 0, 0, 0.1);
        --radius: 12px;
        --transition: all 0.3s ease;
    }

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

    html {
        scroll-behavior: smooth;
    }

    body {
        font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
        background: var(--light-bg);
        color: var(--dark-text);
        line-height: 1.6;
    }

    img {
        max-width: 100%;
        display: block;
    }

    .container {
        max-width: 1200px;
        margin: 0 auto;
        padding: 20px;
    }

    /* Header */
    .page-header {
        background: linear-gradient(135deg, var(--primary-color), var(--primary-dark));
        color: var(--white);
        padding: 40px 30px;
        border-radius: var(--radius);
        margin-bottom: 30px;
        position: relative;
        overflow: hidden;
        box-shadow: var(--shadow);
    }

    .page-header::before {
        content: '';
        position: absolute;
        inset: 0;
        background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 100 100"><defs><pattern id="grain" width="100" height="100" patternUnits="userSpaceOnUse"><circle cx="20" cy="20" r="1" fill="rgba(255,255,255,0.1)"/><circle cx="80" cy="80" r="1" fill="rgba(255,255,255,0.1)"/><circle cx="50" cy="50" r="1" fill="rgba(255,255,255,0.1)"/></pattern></defs><rect width="100" height="100" fill="url(%23grain)"/></svg>');
        opacity: 0.3;
        pointer-events: none;
    }

    .page-title {
        position: relative;
        font-size: 2.5rem;
        font-weight: 700;
        margin-bottom: 15px;
        line-height: 1.2;
        display: flex;
        align-items: center;
        gap: 12px;
    }

    .page-subtitle {
        position: relative;
        font-size: 1.15rem;
        opacity: 0.92;
        max-width: 760px;
    }

    /* Layout */
    .page-content {
        display: grid;
        grid-template-columns: 1fr;
        gap: 30px;
        animation: fadeIn 0.6s ease-out;
    }

    @media (min-width: 992px) {
        .page-content {
            grid-template-columns: 1fr 350px;
        }
    }

    .main-content {
        background: var(--white);
        padding: 30px;
        border-radius: var(--radius);
        box-shadow: var(--shadow);
    }

    .sidebar {
        background: var(--white);
        padding: 25px;
        border-radius: var(--radius);
        box-shadow: var(--shadow);
        height: fit-content;
        position: sticky;
        top: 100px;
    }

    /* Navigation */
    .sidebar-nav {
        margin-bottom: 25px;
    }

    .sidebar-title {
        font-size: 1.3rem;
        font-weight: 600;
        margin-bottom: 20px;
        color: var(--primary-color);
        display: flex;
        align-items: center;
        gap: 12px;
    }

    .nav-list {
        list-style: none;
    }

    .nav-item {
        margin-bottom: 8px;
    }

    .nav-link {
        display: flex;
        align-items: center;
        gap: 12px;
        padding: 12px 16px;
        border-radius: var(--radius);
        text-decoration: none;
        color: var(--dark-text);
        background: var(--light-bg);
        transition: var(--transition);
        font-weight: 500;
    }

    .nav-link:hover,
    .nav-link.active {
        background: var(--primary-color);
        color: var(--white);
        transform: translateX(5px);
    }

    .nav-link i {
        width: 18px;
        text-align: center;
    }

    /* Sections */
    .content-section {
        margin-bottom: 30px;
    }

    .content-section:last-child {
        margin-bottom: 0;
    }

    .section-title {
        font-size: 1.8rem;
        font-weight: 600;
        margin-bottom: 14px;
        color: var(--primary-color);
        display: flex;
        align-items: center;
        gap: 12px;
    }

    .section-lead {
        color: var(--light-text);
        font-size: 1rem;
        margin-bottom: 24px;
        line-height: 1.7;
    }

    /* ========= STAFF NEW STYLE ========= */
    .staff-list {
        margin-top: 18px;
        border-top: 1px solid var(--line);
    }

    .staff-row {
        display: grid;
        grid-template-columns: minmax(0, 1fr) 220px;
        gap: 24px;
        align-items: center;
        padding: 24px 0;
        border-bottom: 1px solid var(--line);
        transition: var(--transition);
    }

    .staff-row:hover {
        background: linear-gradient(90deg, rgba(0, 90, 156, 0.03), rgba(0, 90, 156, 0));
    }

    .staff-main {
        min-width: 0;
    }

    .staff-title {
        margin: 0;
        font-size: 2.05rem;
        font-weight: 700;
        line-height: 1.05;
        color: var(--dark-text);
        text-transform: uppercase;
        letter-spacing: -0.02em;
        word-break: break-word;
    }

    .staff-admin .staff-title {
        font-size: 1.7rem;
    }

    .staff-side {
        display: flex;
        flex-direction: column;
        align-items: flex-end;
        justify-content: center;
        gap: 10px;
        text-align: right;
        min-width: 0;
    }

    .staff-person {
        font-size: 0.94rem;
        font-weight: 700;
        color: var(--dark-text);
        text-transform: uppercase;
        letter-spacing: 0.03em;
        word-break: break-word;
    }

    .staff-role {
        display: inline-flex;
        align-items: center;
        justify-content: center;
        padding: 7px 12px;
        color: #475569;
        border: 1px solid #475569;
        border-radius: 2px;
        font-size: 0.78rem;
        font-weight: 600;
        line-height: 1.2;
        text-align: center;
        max-width: 220px;
    }

    /* Documents */
    .document-list {
        display: flex;
        flex-direction: column;
        gap: 15px;
    }

    .doc-item {
        display: flex;
        align-items: center;
        gap: 20px;
        background: var(--white);
        border-radius: var(--radius);
        padding: 20px;
        box-shadow: var(--shadow);
        transition: var(--transition);
        border: 1px solid var(--border-color);
    }

    .doc-item:hover {
        box-shadow: var(--shadow-lg);
        transform: translateY(-2px);
    }

    .doc-icon {
        width: 60px;
        height: 80px;
        flex-shrink: 0;
        display: flex;
        align-items: center;
        justify-content: center;
        background: var(--light-bg);
        border-radius: 8px;
        font-size: 2rem;
    }

    .doc-icon.pdf {
        color: #dc3545;
    }

    .doc-icon.word {
        color: #2b5797;
    }

    .doc-icon.excel {
        color: #1e7145;
    }

    .doc-icon.ppt {
        color: #d1442d;
    }

    .doc-icon.image {
        color: #6c5ce7;
    }

    .doc-icon.other {
        color: var(--light-text);
    }

    .doc-content {
        flex: 1;
    }

    .doc-content h4 {
        margin: 0 0 8px;
        font-size: 1.1rem;
        color: var(--dark-text);
        display: flex;
        align-items: center;
        gap: 10px;
    }

    .doc-content p {
        margin: 0 0 15px;
        font-size: 0.9rem;
        color: var(--light-text);
        line-height: 1.5;
    }

    .doc-actions {
        display: flex;
        gap: 10px;
        flex-wrap: wrap;
    }

    .doc-button {
        display: inline-flex;
        align-items: center;
        gap: 8px;
        padding: 8px 16px;
        background: var(--primary-color);
        color: var(--white);
        text-decoration: none;
        border-radius: var(--radius);
        font-weight: 500;
        font-size: 0.9rem;
        transition: var(--transition);
        border: none;
        cursor: pointer;
    }

    .doc-button.view {
        background: var(--primary-color);
    }

    .doc-button.download {
        background: var(--primary-dark);
    }

    .doc-button:hover {
        opacity: 0.9;
        transform: translateY(-2px);
    }

    .doc-button i {
        font-size: 1rem;
    }

    .doc-button.disabled {
        background: var(--light-text);
        cursor: not-allowed;
        opacity: 0.7;
    }

    .doc-button.disabled:hover {
        transform: none;
    }

    /* Modal */
    .modal-overlay {
        position: fixed;
        top: 0;
        left: 0;
        right: 0;
        bottom: 0;
        background: rgba(0, 0, 0, 0.8);
        z-index: 9999;
        display: none;
        justify-content: center;
        align-items: center;
        padding: 20px;
    }

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

    .modal-container {
        background: var(--white);
        border-radius: var(--radius);
        width: 100%;
        max-width: 1000px;
        height: 90vh;
        display: flex;
        flex-direction: column;
        overflow: hidden;
        box-shadow: var(--shadow-lg);
    }

    .modal-header {
        display: flex;
        justify-content: space-between;
        align-items: center;
        padding: 15px 20px;
        background: var(--primary-color);
        color: var(--white);
    }

    .modal-header h3 {
        margin: 0;
        font-size: 1.2rem;
        display: flex;
        align-items: center;
        gap: 10px;
    }

    .modal-close {
        background: none;
        border: none;
        color: var(--white);
        font-size: 1.5rem;
        cursor: pointer;
        width: 40px;
        height: 40px;
        display: flex;
        align-items: center;
        justify-content: center;
        border-radius: 50%;
        transition: var(--transition);
    }

    .modal-close:hover {
        background: rgba(255, 255, 255, 0.2);
        transform: rotate(90deg);
    }

    .modal-body {
        flex: 1;
        background: #f5f5f5;
        position: relative;
    }

    .document-viewer {
        width: 100%;
        height: 100%;
        border: none;
    }

    .viewer-placeholder {
        position: absolute;
        top: 50%;
        left: 50%;
        transform: translate(-50%, -50%);
        text-align: center;
        color: var(--light-text);
    }

    .viewer-placeholder i {
        font-size: 4rem;
        margin-bottom: 15px;
        display: block;
    }

    /* Vacancies */
    .vacancy-list {
        display: flex;
        flex-direction: column;
        gap: 20px;
    }

    .vacancy-item {
        background: var(--light-bg);
        border-radius: var(--radius);
        padding: 20px;
        border-left: 4px solid var(--primary-color);
    }

    .vacancy-item h3 {
        margin: 0 0 12px;
        color: var(--dark-text);
        display: flex;
        align-items: center;
        gap: 10px;
    }

    .vacancy-item p {
        margin: 0;
        line-height: 1.6;
        color: var(--light-text);
    }

    /* Achievements */
    .achievement-list {
        display: flex;
        flex-direction: column;
        gap: 30px;
    }

    .achievement-item {
        display: flex;
        align-items: stretch;
        background: var(--white);
        border-radius: var(--radius);
        overflow: hidden;
        box-shadow: var(--shadow);
        transition: var(--transition);
    }

    .achievement-item:hover {
        box-shadow: var(--shadow-lg);
        transform: translateY(-3px);
    }

    .achievement-image-container {
        flex: 0 0 40%;
        overflow: hidden;
    }

    .achievement-image {
        width: 100%;
        height: 100%;
        object-fit: cover;
    }

    .achievement-content {
        flex: 1;
        padding: 25px;
        display: flex;
        flex-direction: column;
    }

    .achievement-month {
        background: var(--secondary-color);
        color: var(--dark-text);
        padding: 6px 12px;
        border-radius: 4px;
        font-weight: 600;
        font-size: 0.85rem;
        text-transform: uppercase;
        margin-bottom: 15px;
        display: inline-block;
        align-self: flex-start;
    }

    .achievement-title {
        font-size: 1.6rem;
        font-weight: 700;
        margin-bottom: 20px;
        line-height: 1.3;
    }

    .achievement-desc {
        font-size: 1rem;
        line-height: 1.7;
        color: var(--dark-text);
        flex-grow: 1;
        margin-bottom: 20px;
    }

    .achievement-person {
        font-size: 1rem;
        font-style: italic;
        color: var(--primary-color);
        text-align: right;
    }

    /* Empty */
    .empty-state {
        text-align: center;
        padding: 60px 20px;
        background: rgba(249, 250, 255, 0.6);
        border-radius: var(--radius);
        border: 1px dashed var(--border-color);
    }

    /* Responsive */
    @media (max-width: 768px) {
        .container {
            padding: 15px;
        }

        .page-header {
            padding: 30px 20px;
            margin-bottom: 20px;
        }

        .page-title {
            font-size: 2rem;
        }

        .page-content {
            grid-template-columns: 1fr;
            gap: 20px;
        }

        .main-content,
        .sidebar {
            padding: 20px;
        }

        .staff-row {
            grid-template-columns: 1fr;
            gap: 14px;
            padding: 20px 0;
        }

        .staff-title {
            font-size: 1.5rem;
        }

        .staff-admin .staff-title {
            font-size: 1.35rem;
        }

        .staff-side {
            align-items: flex-start;
            text-align: left;
        }

        .staff-role {
            max-width: 100%;
        }

        .doc-item {
            flex-direction: column;
            text-align: center;
            gap: 15px;
        }

        .doc-content h4 {
            justify-content: center;
        }

        .doc-actions {
            justify-content: center;
        }

        .achievement-item {
            flex-direction: column;
        }

        .achievement-image-container {
            height: 250px;
        }

        .modal-container {
            height: 95vh;
        }
    }

    @keyframes fadeIn {
        from {
            opacity: 0;
            transform: translateY(20px);
        }

        to {
            opacity: 1;
            transform: translateY(0);
        }
    }