/* ==========================================================================
   GTNS - Giới Thiệu Nhân Sự | Frontend Styles
   Version: 1.1.1
   Layout: Banner top, two-column (info left, timeline right)
   Colors matched to danguy theme (red + gold)
   All classes prefixed with .gtns- to avoid conflicts
   ========================================================================== */

/* ---------- CSS Variables - inherit from danguy theme via var(--dg-*) ---------- */
.gtns-biography {
    --gtns-primary: var(--dg-primary, #8B0000);
    --gtns-primary-light: var(--dg-primary-light, #c62828);
    --gtns-primary-dark: var(--dg-primary-dark, #6d0000);
    --gtns-accent: var(--dg-accent, #ffd54f);
    --gtns-accent-light: var(--dg-accent-light, #ffecb3);
    --gtns-accent-bg: var(--dg-accent-bg, #fffbe5);
    --gtns-bg: #ffffff;
    --gtns-bg-alt: #f7f9fc;
    --gtns-border: #e0e0e0;
    --gtns-text: #333333;
    --gtns-text-light: #666666;
    --gtns-text-white: #ffffff;
    --gtns-link: var(--dg-primary, #8B0000);
    --gtns-radius: 8px;
    --gtns-shadow: 0 2px 12px rgba(0, 0, 0, 0.08);
    --gtns-font: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;

    font-family: var(--gtns-font);
    color: var(--gtns-text);
    line-height: 1.6;
    max-width: 100%;
    margin: 0 auto;
    padding: 0;
    box-sizing: border-box;
}

.gtns-biography *,
.gtns-biography *::before,
.gtns-biography *::after {
    box-sizing: border-box;
}

/* ==========================================================================
   BANNER SECTION - Image only, full width
   ========================================================================== */

.gtns-banner {
    display: block;
    border-radius: var(--gtns-radius) var(--gtns-radius) 0 0;
    overflow: hidden;
    line-height: 0;
}

.gtns-banner__img {
    display: block;
    width: 100%;
    height: auto;
    object-fit: cover;
}

/* ==========================================================================
   BODY - TWO COLUMN LAYOUT
   ========================================================================== */

.gtns-body {
    display: flex;
    align-items: flex-start;
    gap: 0;
    background: var(--gtns-bg);
    border-radius: 0 0 var(--gtns-radius) var(--gtns-radius);
    box-shadow: var(--gtns-shadow);
    overflow: hidden;
}

.gtns-body__left {
    flex: 0 0 42%;
    max-width: 42%;
    border-right: 1px solid var(--gtns-border);
}

.gtns-body__right {
    flex: 1;
    min-width: 0;
}

/* ==========================================================================
   PERSONAL INFO TABLE (left column)
   ========================================================================== */

.gtns-personal-info__table {
    width: 100%;
    border-collapse: collapse;
    border-spacing: 0;
}

.gtns-personal-info__row {
    border-bottom: 1px solid var(--gtns-border);
}

.gtns-personal-info__row:last-child {
    border-bottom: none;
}

.gtns-personal-info__label {
    width: 160px;
    padding: 11px 14px;
    font-weight: 600;
    font-size: 0.88em;
    color: var(--gtns-text);
    background: var(--gtns-accent-bg);
    vertical-align: top;
    white-space: nowrap;
    border-right: 1px solid var(--gtns-border);
}

.gtns-personal-info__value {
    padding: 11px 14px;
    color: var(--gtns-text);
    font-size: 0.92em;
    line-height: 1.6;
    vertical-align: top;
}

/* Chức vụ list with icons */
.gtns-chucvu-list {
    list-style: none;
    margin: 0;
    padding: 0;
}

.gtns-chucvu-list li {
    position: relative;
    padding-left: 20px;
    margin-bottom: 5px;
    line-height: 1.5;
}

.gtns-chucvu-list li::before {
    content: '\2714';
    position: absolute;
    left: 0;
    top: 0;
    font-size: 0.85em;
    color: var(--gtns-primary);
}

.gtns-chucvu-list li:last-child {
    margin-bottom: 0;
}

/* ==========================================================================
   WORK HISTORY / TIMELINE (right column)
   ========================================================================== */

.gtns-work-history {
    padding: 20px 24px 24px;
}

.gtns-work-history__title {
    font-size: 1.1em;
    font-weight: 700;
    color: var(--gtns-text);
    margin: 0 0 20px 0;
    padding-bottom: 12px;
    border-bottom: 2px solid var(--gtns-primary);
    line-height: 1.4;
}

/* Timeline */
.gtns-timeline {
    position: relative;
    padding-left: 24px;
}

.gtns-timeline::before {
    content: '';
    position: absolute;
    left: 5px;
    top: 8px;
    bottom: 8px;
    width: 2px;
    background: var(--gtns-border);
}

.gtns-timeline__item {
    position: relative;
    padding-bottom: 28px;
    cursor: default;
}

.gtns-timeline__item:last-child {
    padding-bottom: 0;
}

.gtns-timeline__dot {
    position: absolute;
    left: -22px;
    top: 5px;
    width: 12px;
    height: 12px;
    border-radius: 50%;
    background: var(--gtns-primary);
    border: 2px solid var(--gtns-primary);
    z-index: 1;
    transition: transform 0.2s ease, background 0.2s ease, border-color 0.2s ease, box-shadow 0.2s ease;
}

.gtns-timeline__item:hover .gtns-timeline__dot {
    background: var(--gtns-accent);
    border-color: var(--gtns-primary);
    transform: scale(1.4);
    box-shadow: 0 0 0 4px var(--gtns-accent-light);
}

.gtns-timeline__content {
    padding: 0 0 0 4px;
    border-radius: 4px;
    transition: background 0.2s ease;
}

.gtns-timeline__item:hover .gtns-timeline__content {
    background: var(--gtns-accent-bg);
    padding: 6px 10px;
    margin: -6px -10px;
}

.gtns-timeline__date {
    display: block;
    font-weight: 700;
    color: var(--gtns-primary);
    font-size: 0.92em;
    margin-bottom: 2px;
    line-height: 1.4;
    transition: color 0.2s ease;
}

.gtns-timeline__item:hover .gtns-timeline__date {
    color: var(--gtns-primary-light);
}

.gtns-timeline__desc {
    margin: 0;
    color: var(--gtns-text);
    font-size: 0.9em;
    line-height: 1.55;
}

/* ==========================================================================
   RESPONSIVE DESIGN
   ========================================================================== */

/* Tablet */
@media (max-width: 900px) {
    .gtns-body__left {
        flex: 0 0 44%;
        max-width: 44%;
    }

    .gtns-personal-info__label {
        width: 140px;
        padding: 10px 10px;
        font-size: 0.84em;
    }

    .gtns-personal-info__value {
        padding: 10px 10px;
        font-size: 0.88em;
    }

    .gtns-work-history {
        padding: 16px 18px 20px;
    }
}

/* Small tablet / Large phone */
@media (max-width: 768px) {
    .gtns-body {
        flex-direction: column;
    }

    .gtns-body__left {
        flex: none;
        max-width: 100%;
        width: 100%;
        border-right: none;
        border-bottom: 1px solid var(--gtns-border);
    }

    .gtns-body__right {
        width: 100%;
    }
}

/* Mobile */
@media (max-width: 480px) {
    .gtns-personal-info__row {
        display: flex;
        flex-direction: column;
    }

    .gtns-personal-info__label {
        width: 100%;
        padding: 8px 12px 2px;
        border-right: none;
        border-bottom: none;
        font-size: 0.8em;
        color: var(--gtns-text-light);
        background: var(--gtns-bg);
    }

    .gtns-personal-info__value {
        padding: 2px 12px 10px;
        font-size: 0.9em;
    }

    .gtns-work-history {
        padding: 14px 14px 18px;
    }

    .gtns-work-history__title {
        font-size: 1em;
    }

    .gtns-timeline {
        padding-left: 20px;
    }

    .gtns-timeline::before {
        left: 4px;
    }

    .gtns-timeline__dot {
        left: -18px;
        width: 10px;
        height: 10px;
    }

    .gtns-timeline__date {
        font-size: 0.85em;
    }

    .gtns-timeline__desc {
        font-size: 0.85em;
    }
}

/* Print */
@media print {
    .gtns-biography {
        max-width: 100%;
    }

    .gtns-banner {
        -webkit-print-color-adjust: exact;
        print-color-adjust: exact;
    }

    .gtns-body {
        box-shadow: none;
        border: 1px solid #ccc;
    }
}