/* ============================================================
   PHÒNG TRUYỀN THỐNG PAGE – SPECIFIC STYLES
============================================================ */

/* Hero — Ban cán sự Gen 7 */
#hero.heritage-hero {
    background: #06351f;
    isolation: isolate;
}

.heritage-hero-background {
    position: absolute;
    inset: 0;
    z-index: 0;
    overflow: hidden;
    pointer-events: none;
}

.heritage-hero-background::after {
    content: '';
    position: absolute;
    inset: 0;
    background:
        linear-gradient(90deg, rgba(4, 47, 29, .92) 0%, rgba(4, 47, 29, .77) 38%, rgba(4, 47, 29, .42) 72%, rgba(4, 47, 29, .58) 100%),
        linear-gradient(180deg, rgba(4, 39, 25, .34) 0%, rgba(4, 39, 25, .08) 46%, rgba(4, 39, 25, .72) 100%);
}

.heritage-hero-background img {
    width: 100%;
    height: 100%;
    display: block;
    object-fit: cover;
    object-position: center;
    filter: saturate(.86) contrast(1.04);
    transform: scale(1.02);
}

#hero.heritage-hero::before,
#hero.heritage-hero::after {
    z-index: 1;
}

#hero.heritage-hero .hero-content {
    z-index: 3;
}

#hero.heritage-hero .hero-desc {
    color: rgba(239, 249, 242, .82);
    text-shadow: 0 2px 18px rgba(0, 0, 0, .28);
}

@media (max-width: 768px) {
    .heritage-hero-background::after {
        background:
            linear-gradient(90deg, rgba(4, 47, 29, .82), rgba(4, 47, 29, .68)),
            linear-gradient(180deg, rgba(4, 39, 25, .52) 0%, rgba(4, 39, 25, .25) 42%, rgba(4, 39, 25, .88) 100%);
    }
}
/* Timeline Section */
#milestones {
    background:
        linear-gradient(90deg, rgba(5, 40, 31, .94), rgba(7, 71, 43, .88) 48%, rgba(4, 38, 31, .95)),
        linear-gradient(135deg, #082d27 0%, #075c35 52%, #05261f 100%) !important;
    overflow: hidden;
}

#milestones .container {
    position: relative;
}

#milestones .section-label {
    color: var(--white);
    letter-spacing: .04em;
    margin-bottom: .7rem;
}

#milestones .section-title {
    font-size: clamp(2rem, 4.6vw, 3.35rem);
    line-height: 1.05;
    margin-bottom: clamp(3rem, 6vw, 4.8rem);
}

.timeline-container {
    position: relative;
    padding: .5rem 0 1rem;
    --timeline-progress: 0;
}

.timeline-container::before {
    content: '';
    position: absolute;
    inset: -5rem -12vw -4rem;
    pointer-events: none;
    background:
        linear-gradient(rgba(255,255,255,.025) 1px, transparent 1px),
        linear-gradient(90deg, rgba(255,255,255,.018) 1px, transparent 1px);
    background-size: 72px 72px;
    mask-image: linear-gradient(to bottom, transparent, #000 15%, #000 86%, transparent);
}

.timeline-rail {
    position: absolute;
    left: 50%;
    top: -1rem;
    bottom: -1rem;
    width: 8px;
    transform: translateX(-50%);
    border-radius: 99px;
    background: rgba(236, 252, 241, .9);
    box-shadow:
        0 0 0 1px rgba(255,255,255,.18),
        0 0 22px rgba(100,255,146,.24);
    overflow: hidden;
}

.timeline-rail-progress {
    position: absolute;
    left: 0;
    right: 0;
    top: 0;
    height: var(--timeline-fill, 0%);
    border-radius: inherit;
    background: linear-gradient(180deg, var(--green-neon), var(--amber));
    box-shadow: 0 0 18px rgba(100,255,146,.58);
}

.timeline-train {
    position: absolute;
    z-index: 5;
    top: 0;
    left: 50%;
    width: 58px;
    transform: translate(-50%, var(--timeline-y, 0px)) translateY(-8px);
    filter: drop-shadow(0 8px 10px rgba(0,0,0,.48));
    will-change: transform;
    pointer-events: none;
}

.timeline-train svg { display: block; width: 100%; overflow: visible; }
.train-body, .train-cabin { fill: #1cc964; stroke: #a6ffc2; stroke-width: 2; }
.train-window { fill: #083323; stroke: #d8f5df; stroke-width: 1.5; }
.train-light { fill: #fff7b8; filter: drop-shadow(0 0 7px rgba(255,247,184,.85)); }
.train-cowcatcher { fill: #0d8d47; stroke: #9ef0b8; stroke-width: 2; }
.train-wheel { fill: #06351f; stroke: #d8f5df; stroke-width: 2; }
.train-smoke { fill: none; stroke: rgba(216,245,223,.68); stroke-width: 3; stroke-linecap: round; }

.timeline-item {
    position: relative;
    z-index: 1;
    margin-bottom: clamp(2.2rem, 4.6vw, 4.8rem);
    display: grid;
    grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
    gap: clamp(4.6rem, 9vw, 7rem);
    align-items: center;
    min-height: 118px;
}

.timeline-item:last-child {
    margin-bottom: 0;
}

.timeline-item:nth-child(odd) .timeline-marker {
    grid-column: 1;
    grid-row: 1;
}

.timeline-item:nth-child(odd) .timeline-content {
    grid-column: 2;
    grid-row: 1;
    justify-self: start;
}

.timeline-item:nth-child(even) .timeline-marker {
    grid-column: 2;
    grid-row: 1;
}

.timeline-item:nth-child(even) .timeline-content {
    grid-column: 1;
    grid-row: 1;
    justify-self: end;
}

.timeline-marker {
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 80px;
}

.timeline-dot {
    width: 34px;
    height: 34px;
    border-radius: 50%;
    border: 2px solid var(--green-neon);
    background:
        radial-gradient(circle, transparent 0 4px, rgba(100,255,146,.3) 4px 5px, transparent 5px),
        conic-gradient(from 0deg, transparent 0 11%, var(--green-neon) 11% 13%, transparent 13% 24%, var(--green-neon) 24% 26%, transparent 26% 36%, var(--green-neon) 36% 38%, transparent 38% 49%, var(--green-neon) 49% 51%, transparent 51% 62%, var(--green-neon) 62% 64%, transparent 64% 74%, var(--green-neon) 74% 76%, transparent 76% 87%, var(--green-neon) 87% 89%, transparent 89% 100%);
    position: relative;
    z-index: 2;
    box-shadow:
        0 0 0 1px rgba(100,255,146,.16),
        0 0 20px rgba(100,255,146,.46);
}

.timeline-dot::before,
.timeline-dot::after {
    content: '';
    position: absolute;
    left: 50%;
    top: 50%;
    width: 38px;
    height: 2px;
    border-radius: 99px;
    background: var(--green-neon);
    transform: translate(-50%, -50%);
}

.timeline-dot::after {
    transform: translate(-50%, -50%) rotate(90deg);
}

.timeline-item:nth-child(3n) .timeline-dot {
    transform: rotate(45deg);
}

.timeline-content {
    width: min(100%, 490px);
    min-height: 116px;
    display: flex;
    flex-direction: column;
    justify-content: center;
    background:
        linear-gradient(135deg, rgba(7, 92, 53, .68), rgba(15, 122, 73, .88)),
        rgba(47, 214, 111, .12);
    border: 3px solid var(--green-neon);
    border-radius: 24px;
    padding: 1.15rem 1.55rem;
    box-shadow:
        0 18px 34px rgba(0, 0, 0, .25),
        inset 0 0 26px rgba(100,255,146,.11),
        0 0 18px rgba(100,255,146,.34);
    transition: var(--transition);
}

.timeline-content:hover {
    transform: translateY(-3px);
    border-color: #b5ffca;
    box-shadow:
        0 22px 42px rgba(0, 0, 0, .3),
        inset 0 0 30px rgba(100,255,146,.16),
        0 0 24px rgba(100,255,146,.5);
}

.timeline-content h3 {
    font-family: var(--font-display);
    font-size: clamp(.82rem, 1.35vw, 1rem);
    line-height: 1.25;
    font-weight: 800;
    text-transform: uppercase;
    color: var(--white);
    margin-bottom: .55rem;
}

.timeline-content p {
    font-size: clamp(.78rem, 1.08vw, .9rem);
    font-weight: 600;
    font-style: italic;
    color: var(--text-light);
    line-height: 1.45;
}
/* ================================
   LEADER PANEL + ORG TREE
================================ */

.leader-panel {
    display: none;
}

.leader-panel.active {
    display: block;
}

/* Tabs */
.leaders-tabs-nav {
    display: flex;
    gap: .75rem;
    margin-bottom: 2rem;
    flex-wrap: wrap;
}

.leader-tab-btn {
    padding: .5rem 1.2rem;
    border-radius: 99px;
    font-size: .85rem;
    font-weight: 600;
    cursor: pointer;
    border: 1.5px solid rgba(255, 255, 255, .15);
    background: transparent;
    color: var(--text-muted);
    transition: var(--transition);
    font-family: var(--font-display);
}

.leader-tab-btn.active {
    background: var(--amber);
    color: var(--navy);
    border-color: var(--amber);
}

.leader-tab-btn:hover:not(.active) {
    border-color: rgba(245, 166, 35, .5);
    color: var(--text-light);
}

/* Default panels for older GENs */
.leader-banner {
    border: 1px solid rgba(245, 166, 35, .2);
    border-radius: var(--radius-md);
    padding: 1.5rem 2rem;
    background: rgba(245, 166, 35, .04);
    margin-bottom: 2rem;
}

.leader-banner h3 {
    font-family: var(--font-display);
    font-size: 1.15rem;
    font-weight: 700;
    color: var(--amber);
    margin-bottom: .4rem;
}

.leader-banner p {
    font-size: .9rem;
    color: var(--text-muted);
    line-height: 1.7;
}

.leader-panel:not(.leader-verde) .org-tree {
    display: flex;
    flex-direction: column;
    gap: 1.25rem;
}

.leader-panel:not(.leader-verde) .org-level {
    position: relative;
    display: grid;
    gap: 1rem;
}

.leader-panel:not(.leader-verde) .org-level.level-1 {
    grid-template-columns: minmax(240px, 320px);
    justify-content: center;
}

.leader-panel:not(.leader-verde) .org-level.level-2 {
    grid-template-columns: repeat(2, minmax(220px, 1fr));
}

.leader-panel:not(.leader-verde) .org-level.level-3 {
    grid-template-columns: repeat(3, minmax(200px, 1fr));
}

.leader-panel:not(.leader-verde) .org-level.level-4 {
    grid-template-columns: repeat(4, minmax(180px, 1fr));
}

.leader-panel:not(.leader-verde) .org-level:not(.level-1) {
    padding-top: 1.25rem;
}

.leader-panel:not(.leader-verde) .org-level:not(.level-1)::before {
    content: '';
    position: absolute;
    top: 0;
    left: 10%;
    right: 10%;
    height: 1px;
    background: rgba(245, 166, 35, .35);
}

.leader-panel:not(.leader-verde) .org-node {
    position: relative;
    background: rgba(255, 255, 255, .04);
    border: 1px solid rgba(255, 255, 255, .09);
    border-radius: var(--radius-md);
    padding: .95rem 1rem;
    transition: var(--transition);
}

.leader-panel:not(.leader-verde) .org-level:not(.level-1) .org-node::before {
    content: '';
    position: absolute;
    top: -1.25rem;
    left: 50%;
    width: 1px;
    height: 1.25rem;
    background: rgba(245, 166, 35, .35);
    transform: translateX(-50%);
}

.leader-panel:not(.leader-verde) .org-node:hover {
    border-color: rgba(245, 166, 35, .4);
    background: rgba(245, 166, 35, .07);
    transform: translateY(-2px);
}

.leader-panel:not(.leader-verde) .org-role {
    display: block;
    color: var(--amber);
    font-size: .72rem;
    font-weight: 700;
    letter-spacing: .02em;
    margin-bottom: .35rem;
    text-transform: uppercase;
}

.leader-panel:not(.leader-verde) .org-avatar {
    width: 64px;
    height: 64px;
    border-radius: 50%;
    overflow: hidden;
    border: 2px solid rgba(245, 166, 35, .45);
    margin-bottom: .6rem;
}

.leader-panel:not(.leader-verde) .org-avatar img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.leader-panel:not(.leader-verde) .org-node strong {
    display: block;
    font-family: var(--font-display);
    font-size: .95rem;
    color: var(--text-light);
}

.leader-panel:not(.leader-verde) .org-node p {
    margin-top: .35rem;
    font-size: .82rem;
    color: var(--text-muted);
    line-height: 1.55;
}

/* ================================
   GEN 7 VERDE - MATCH DESIGN IMAGE
================================ */

.leader-verde {
    position: relative;
    width: min(100%, 960px);
    height: 710px;
    min-height: 710px;
    margin: 0 auto;
    padding: 0;
    overflow: hidden;
    border-radius: 0;
    /* isolation: isolate;
    background:
        radial-gradient(circle at 16% 50%, rgba(20, 119, 78, .52) 0, rgba(20, 119, 78, .28) 18%, transparent 38%),
        radial-gradient(circle at 96% 36%, rgba(31, 148, 91, .42) 0, rgba(31, 148, 91, .18) 18%, transparent 35%),
        radial-gradient(circle at 56% 118%, rgba(23, 117, 78, .42) 0, rgba(23, 117, 78, .22) 22%, transparent 42%),
        linear-gradient(90deg, #082d27 0%, #063228 43%, #05261f 100%); */
}

.leader-verde::before {
    content: "";
    position: absolute;
    inset: 0;
    z-index: -2;
    opacity: .45;
    pointer-events: none;
    /* background:
        linear-gradient(90deg, rgba(255, 255, 255, .018) 1px, transparent 1px),
        linear-gradient(0deg, rgba(255, 255, 255, .014) 1px, transparent 1px);
    background-size: 48px 48px;
    mask-image: radial-gradient(circle at 50% 48%, #000 0 62%, transparent 100%); */
}

.leader-verde::after {
    content: "";
    position: absolute;
    right: -175px;
    top: 92px;
    z-index: -1;
    width: 430px;
    height: 430px;
    border-radius: 50%;
    /* background: rgba(37, 255, 131, .11);
    filter: blur(82px); */
    pointer-events: none;
}

.leader-verde .verde-heading {
    position: absolute;
    top: 31px;
    left: 44px;
    z-index: 3;
    margin: 0;
    padding: 0;
    border: 0;
    background: transparent;
}

.leader-verde .verde-heading h3 {
    margin: 0;
    font-family: var(--font-display), Montserrat, sans-serif;
    font-size: 38px;
    line-height: .92;
    font-weight: 900;
    letter-spacing: .045em;
    color: #fff;
    text-transform: none;
    text-shadow:
        0 1px 0 rgba(255, 255, 255, .2),
        0 8px 24px rgba(0, 0, 0, .28);
}

.leader-verde .verde-heading h3 span {
    color: #3cff77;
}

.leader-verde .verde-heading p {
    margin-top: .5rem;
    font-family: var(--font-display), Montserrat, sans-serif;
    font-size: 29px;
    line-height: 1;
    font-weight: 900;
    font-style: italic;
    color: #3cff77;
    text-shadow: 0 8px 22px rgba(0, 0, 0, .25);
}

.leader-verde .org-tree {
    position: relative;
    z-index: 2;
    width: 100%;
    height: 100%;
    min-height: 710px;
    padding: 0;
}

.leader-verde .org-level {
    display: contents;
}

.leader-verde .org-level::before,
.leader-verde .org-node::before {
    display: none !important;
}

/* Member nodes */
.leader-verde .org-node {
    position: absolute;
    width: 150px;
    padding: 0;
    border: 0;
    background: transparent;
    box-shadow: none;
    text-align: center;
    display: flex;
    flex-direction: column;
    align-items: center;
    transform: translateX(-50%);
    transition: transform .25s ease, filter .25s ease;
}

.leader-verde .org-node:hover {
    background: transparent;
    border-color: transparent;
    transform: translateX(-50%) translateY(-5px);
    filter: drop-shadow(0 13px 16px rgba(0, 0, 0, .22));
}

.leader-verde .org-avatar {
    position: relative;
    order: 1;
    width: 88px;
    height: 88px;
    margin: 0 0 8px;
    border-radius: 50%;
    overflow: hidden;
    border: 0;
    background: linear-gradient(180deg, #dcf7ff 0 58%, #d8e990 58% 73%, #93b900 73% 100%);
    box-shadow:
        0 8px 18px rgba(0, 0, 0, .18),
        inset 0 0 0 1px rgba(255, 255, 255, .55);
}

.leader-verde .org-avatar img {
    position: absolute;
    inset: 0;
    z-index: 3;
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
}

.leader-verde .org-avatar--placeholder::before {
    content: "";
    position: absolute;
    left: 26px;
    top: 14px;
    width: 38px;
    height: 18px;
    border-radius: 999px;
    background:
        radial-gradient(circle at 22% 53%, #fff 0 9px, transparent 10px),
        radial-gradient(circle at 48% 35%, #fff 0 11px, transparent 12px),
        radial-gradient(circle at 75% 58%, #fff 0 8px, transparent 9px),
        linear-gradient(#fff, #fff);
}

.leader-verde .org-avatar--placeholder::after {
    content: "";
    position: absolute;
    left: -8px;
    right: -8px;
    bottom: 10px;
    height: 34px;
    background:
        radial-gradient(ellipse at 70% 82%, #8fb800 0 45%, transparent 46%),
        radial-gradient(ellipse at 36% 85%, #b9da52 0 50%, transparent 51%);
}

.leader-verde .org-node strong {
    order: 2;
    display: block;
    max-width: 150px;
    font-family: var(--font-display), Montserrat, sans-serif;
    font-size: 12.5px;
    line-height: 1.05;
    font-weight: 900;
    color: #fff;
    letter-spacing: -.02em;
    text-shadow: 0 3px 8px rgba(0, 0, 0, .45);
}

.leader-verde .org-role {
    order: 3;
    display: block;
    margin-top: 2px;
    max-width: 150px;
    color: #fff;
    font-family: var(--font-display), Montserrat, sans-serif;
    font-size: 12px;
    line-height: 1.08;
    font-weight: 800;
    font-style: italic;
    letter-spacing: -.03em;
    text-transform: none;
    text-shadow: 0 3px 8px rgba(0, 0, 0, .45);
}

.leader-verde .org-node p {
    display: none;
}

/* GEN 6 BLUE THEME */
.leader-blue {
    isolation: isolate;
    overflow: visible;
    background: transparent;
    box-shadow: none;
}

.leader-blue::before {
    content: "";
    position: absolute;
    top: 0;
    bottom: 0;
    left: 50%;
    z-index: -2;
    width: 100vw;
    transform: translateX(-50%);
    opacity: 1;
    pointer-events: none;
    background:
        radial-gradient(circle at 72% 12%, rgba(88, 135, 220, .46) 0, rgba(88, 135, 220, .22) 23%, transparent 46%),
        radial-gradient(circle at 14% 58%, rgba(46, 55, 118, .56) 0, rgba(46, 55, 118, .2) 28%, transparent 52%),
        linear-gradient(112deg, #12152f 0%, #202a5b 53%, #365fa4 100%);
    box-shadow: inset 0 0 90px rgba(4, 8, 25, .34);
}

.leader-blue::after {
    right: max(-120px, calc(50% - 50vw));
    top: -110px;
    z-index: -1;
    background: rgba(113, 161, 255, .18);
    filter: blur(88px);
}

.leader-blue .verde-heading {
    top: 42%;
    left: 50%;
    z-index: 1;
    transform: translate(-50%, -50%);
    text-align: center;
    pointer-events: none;
}

.leader-blue .verde-heading h3 {
    font-size: clamp(1.85rem, 4vw, 2.45rem);
    line-height: 1;
    letter-spacing: .02em;
    white-space: nowrap;
    color: #fff;
    text-shadow:
        3px 3px 0 rgba(28, 43, 106, .85),
        0 18px 32px rgba(4, 9, 30, .34);
}

.leader-blue .verde-heading h3 span {
    color: #a9c8ff;
}

.leader-blue .org-avatar {
    background: linear-gradient(180deg, #e8f1ff 0 58%, #b9cdfb 58% 73%, #5c7fd7 73% 100%);
    box-shadow:
        0 8px 18px rgba(3, 8, 28, .26),
        inset 0 0 0 1px rgba(255, 255, 255, .62);
}

.leader-blue .org-avatar--placeholder::after {
    background:
        radial-gradient(ellipse at 70% 82%, #526fc8 0 45%, transparent 46%),
        radial-gradient(ellipse at 36% 85%, #7f9eef 0 50%, transparent 51%);
}

.leader-blue .org-node strong,
.leader-blue .org-role {
    text-shadow: 0 3px 8px rgba(4, 9, 30, .58);
}

/* Exact desktop positions based on the supplied 960x626 design */
.leader-verde .level-1 .org-node {
    left: 52.2%;
    top: 32px;
}

.leader-verde .level-2 .org-node:nth-child(1) {
    left: 21%;
    top: 204px;
}

.leader-verde .level-2 .org-node:nth-child(2) {
    left: 52.2%;
    top: 204px;
}

.leader-verde .level-2 .org-node:nth-child(3) {
    left: 81%;
    top: 204px;
}

.leader-verde .level-3 .org-node:nth-child(1) {
    left: 21%;
    top: 375px;
}

.leader-verde .level-3 .org-node:nth-child(2) {
    left: 52.2%;
    top: 375px;
}

.leader-verde .level-3 .org-node:nth-child(3) {
    left: 82%;
    top: 375px;
}

.leader-verde .level-4 .org-node {
    top: 532px;
    width: 132px;
}

.leader-verde .level-4 .org-node strong,
.leader-verde .level-4 .org-node .org-role {
    display: block;
    max-width: 132px;
}

.leader-verde .level-4 .org-avatar {
    width: 88px;
    height: 88px;
    margin-bottom: 8px;
}

.leader-verde .level-4 .org-node:nth-child(6) .org-avatar img {
    object-position: center 16%;
}

.leader-verde .level-4 .org-node:nth-child(1) {
    left: 10.3%;
}

.leader-verde .level-4 .org-node:nth-child(2) {
    left: 28.2%;
}

.leader-verde .level-4 .org-node:nth-child(3) {
    left: 42.3%;
}

.leader-verde .level-4 .org-node:nth-child(4) {
    left: 60.4%;
}

.leader-verde .level-4 .org-node:nth-child(5) {
    left: 74.4%;
}

.leader-verde .level-4 .org-node:nth-child(6) {
    left: 90.3%;
}

/* GEN 1-5 NOVALOTUS POSTERS */
.leader-history {
    --history-accent: #ff83ef;
    --history-deep: #240019;
    isolation: isolate;
    height: auto;
    min-height: 710px;
    overflow: visible;
    padding: 20px 0 24px;
}

.leader-history::before {
    content: "";
    position: absolute;
    inset: 0 50%;
    z-index: -2;
    width: 100vw;
    transform: translateX(-50%);
    opacity: 1;
    background:
        radial-gradient(ellipse at 50% 58%, color-mix(in srgb, var(--history-accent) 23%, transparent) 0, transparent 57%),
        radial-gradient(circle at 12% 90%, color-mix(in srgb, var(--history-accent) 18%, transparent) 0, transparent 34%),
        linear-gradient(120deg, var(--history-deep), #08060f 66%, var(--history-deep));
    box-shadow: inset 0 0 90px rgba(0, 0, 0, .48);
}

.leader-history::after {
    content: "";
    position: absolute;
    left: 50%;
    top: 58px;
    right: auto;
    z-index: -1;
    width: min(1120px, 112vw);
    height: 650px;
    transform: translateX(-50%);
    border: 2px solid transparent;
    border-top-color: var(--history-accent);
    border-radius: 50%;
    background: transparent;
    box-shadow:
        0 -8px 24px color-mix(in srgb, var(--history-accent) 50%, transparent),
        inset 0 12px 32px color-mix(in srgb, var(--history-accent) 14%, transparent);
    filter: none;
    opacity: .9;
}

.leader-history--gen5 {
    --history-accent: #ff78eb;
    --history-deep: #350020;
}

.leader-history--gen4 {
    --history-accent: #ffe226;
    --history-deep: #252100;
}

.leader-history--gen3 {
    --history-accent: #ff782e;
    --history-deep: #351300;
}

.leader-history--gen2 {
    --history-accent: #18f3dc;
    --history-deep: #003d38;
}

.leader-history--gen1 {
    --history-accent: #b961ff;
    --history-deep: #28003b;
}

.leader-history .verde-heading {
    top: 24px;
    left: 28px;
}

.leader-history .verde-heading h3 {
    font-size: clamp(1.75rem, 3.3vw, 2.35rem);
    letter-spacing: .015em;
}

.leader-history .verde-heading h3 span,
.leader-history .verde-heading p {
    color: var(--history-accent);
}

.leader-history .verde-heading p {
    margin-top: .35rem;
    font-size: clamp(1.4rem, 2.7vw, 1.9rem);
}

.leader-history .org-tree {
    display: flex;
    flex-direction: column;
    gap: 16px;
    height: auto;
    min-height: 666px;
    padding: 0 4px;
}

.leader-history .org-level {
    display: grid;
    width: 100%;
    margin: 0 auto;
    align-items: start;
    justify-content: center;
    justify-items: center;
    gap: 12px 18px;
}

.leader-history .history-cols-1 {
    grid-template-columns: minmax(120px, 150px);
}

.leader-history .history-cols-2 {
    max-width: 600px;
    grid-template-columns: repeat(2, minmax(120px, 150px));
    justify-content: space-around;
}

.leader-history .history-cols-3 {
    max-width: 820px;
    grid-template-columns: repeat(3, minmax(120px, 150px));
    justify-content: space-between;
}

.leader-history .history-cols-4 {
    max-width: 850px;
    grid-template-columns: repeat(4, minmax(115px, 145px));
    justify-content: space-between;
}

.leader-history .history-cols-6 {
    grid-template-columns: repeat(6, minmax(105px, 132px));
    justify-content: space-between;
    gap: 10px;
}

.leader-history .org-node,
.leader-history .level-1 .org-node,
.leader-history .level-2 .org-node,
.leader-history .level-3 .org-node,
.leader-history .level-4 .org-node {
    position: static;
    left: auto;
    top: auto;
    width: 100%;
    max-width: 150px;
    transform: none;
}

.leader-history .org-node:hover {
    transform: translateY(-5px);
}

.leader-history .level-4 .org-node {
    max-width: 132px;
}

.leader-history .org-avatar,
.leader-history .level-4 .org-avatar {
    width: 82px;
    height: 82px;
    margin-bottom: 7px;
}

.leader-history .org-avatar--placeholder::before {
    left: 23px;
    top: 13px;
}

.leader-history .org-node strong,
.leader-history .org-role,
.leader-history .level-4 .org-node strong,
.leader-history .level-4 .org-node .org-role {
    display: block;
    max-width: 100%;
}

.leader-history .org-node strong {
    min-height: 13px;
}

.leader-history .org-role {
    min-height: 25px;
}

/* Responsive: chuyển từ layout poster sang layout thẻ để không vỡ trên mobile */
@media (max-width: 980px) {
    .leader-verde {
        height: auto;
        min-height: 0;
        padding: 2rem 1.2rem 2.4rem;
        border-radius: var(--radius-md);
    }

    .leader-verde .verde-heading {
        position: relative;
        top: auto;
        left: auto;
        margin-bottom: 2.2rem;
    }

    .leader-verde .verde-heading h3 {
        font-size: clamp(2.25rem, 8vw, 3.25rem);
    }

    .leader-verde .verde-heading p {
        font-size: clamp(1.55rem, 6vw, 2.15rem);
    }

    .leader-verde .org-tree {
        height: auto;
        min-height: 0;
        display: flex;
        flex-direction: column;
        gap: 2.2rem;
    }

    .leader-verde .org-level {
        display: flex;
        justify-content: center;
        flex-wrap: wrap;
        gap: 2rem 2.5rem;
    }

    .leader-verde .org-node,
    .leader-verde .level-1 .org-node,
    .leader-verde .level-2 .org-node,
    .leader-verde .level-3 .org-node,
    .leader-verde .level-4 .org-node {
        position: static;
        left: auto;
        top: auto;
        width: 135px;
        transform: none;
    }

    .leader-verde .org-node:hover {
        transform: translateY(-5px);
    }

    .leader-verde .level-4 .org-node strong,
    .leader-verde .level-4 .org-node .org-role {
        display: block;
    }
}

@media (max-width: 768px) {
    .leader-panel:not(.leader-verde) .org-level.level-2,
    .leader-panel:not(.leader-verde) .org-level.level-3,
    .leader-panel:not(.leader-verde) .org-level.level-4 {
        grid-template-columns: repeat(2, minmax(160px, 1fr));
    }

    .leader-panel:not(.leader-verde) .org-level:not(.level-1)::before {
        left: 15%;
        right: 15%;
    }
}
@media (max-width: 480px) {
    .leaders-tabs-nav {
        flex-direction: column;
    }

    .leader-tab-btn {
        width: 100%;
        text-align: left;
    }

    .leader-verde {
        padding: 1.6rem 1rem 2rem;
    }

    .leader-verde .org-level {
        gap: 1.8rem;
    }

    .leader-verde .org-avatar,
    .leader-verde .level-4 .org-avatar {
        width: 78px;
        height: 78px;
    }

    .leader-verde .org-node strong {
        font-size: .8rem;
    }

    .leader-verde .org-role {
        font-size: .74rem;
    }

    .leader-panel:not(.leader-verde) .org-level.level-1,
    .leader-panel:not(.leader-verde) .org-level.level-2,
    .leader-panel:not(.leader-verde) .org-level.level-3,
    .leader-panel:not(.leader-verde) .org-level.level-4 {
        grid-template-columns: 1fr;
    }

    .leader-panel:not(.leader-verde) .org-level:not(.level-1)::before {
        display: none;
    }

    .leader-panel:not(.leader-verde) .org-level:not(.level-1) .org-node::before {
        left: 1rem;
        transform: none;
    }
}


/* Achievements Grid */
.achievement-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1.5rem;
}

.achievement-card {
    background: rgba(255, 255, 255, .04);
    border: 1px solid rgba(255, 255, 255, .07);
    border-radius: var(--radius-md);
    padding: 2rem 1.5rem;
    text-align: center;
    transition: var(--transition);
}

.achievement-card:hover {
    border-color: rgba(245, 166, 35, .3);
    background: rgba(245, 166, 35, .06);
    transform: translateY(-4px);
}

.achievement-icon {
    font-size: 2.5rem;
    margin-bottom: 1rem;
}

.achievement-card h3 {
    font-family: var(--font-display);
    font-size: 1rem;
    font-weight: 700;
    color: var(--white);
    margin-bottom: .6rem;
}

.achievement-card p {
    font-size: .85rem;
    color: var(--text-muted);
    line-height: 1.6;
}

/* Gallery Grid */
.gallery-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1rem;
}

.gallery-item {
    position: relative;
    overflow: hidden;
    border-radius: var(--radius-md);
    aspect-ratio: 1;
    background: var(--navy-mid);
    cursor: pointer;
}

.gallery-item img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform var(--transition);
}

.gallery-item:hover img {
    transform: scale(1.05);
}

.gallery-caption {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    background: linear-gradient(to top, rgba(6, 53, 31, .95), transparent);
    padding: 1.5rem 1rem 1rem;
    color: white;
    opacity: 0;
    transition: opacity var(--transition);
}

.gallery-item:hover .gallery-caption {
    opacity: 1;
}

.gallery-caption h4 {
    font-family: var(--font-display);
    font-size: .95rem;
    font-weight: 700;
    color: var(--amber);
    margin-bottom: .2rem;
}

.gallery-caption p {
    font-size: .75rem;
    color: var(--text-light);
}

/* Contact Cards */
.contact-cards {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1.5rem;
}

.contact-card {
    background: rgba(255, 255, 255, .04);
    border: 1px solid rgba(255, 255, 255, .07);
    border-radius: var(--radius-md);
    padding: 2rem 1.5rem;
    text-align: center;
    transition: var(--transition);
}

.contact-card:hover {
    border-color: rgba(245, 166, 35, .3);
    background: rgba(245, 166, 35, .06);
}

.contact-card h3 {
    font-family: var(--font-display);
    font-size: 1rem;
    font-weight: 700;
    color: var(--amber);
    margin-bottom: 1rem;
}

.contact-card p {
    font-size: .9rem;
    color: var(--text-muted);
    line-height: 1.7;
}

.contact-card a {
    color: var(--amber);
    transition: color var(--transition);
}

.contact-card a:hover {
    color: var(--white);
}

/* ============================================================
   RESPONSIVE – PHÒNG TRUYỀN THỐNG
============================================================ */
@media (max-width: 768px) {
    #milestones .section-title {
        margin-bottom: 2.5rem;
    }

    .timeline-container {
        padding-left: .25rem;
    }

    .timeline-rail {
        left: 18px;
        width: 6px;
    }

    .timeline-train {
        left: 18px;
        width: 44px;
    }

    .timeline-item {
        grid-template-columns: 40px minmax(0, 1fr);
        gap: 1rem;
        min-height: 0;
        margin-bottom: 1.5rem;
    }

    .timeline-item:nth-child(odd) .timeline-marker,
    .timeline-item:nth-child(even) .timeline-marker {
        grid-column: 1;
        grid-row: 1;
    }

    .timeline-item:nth-child(odd) .timeline-content,
    .timeline-item:nth-child(even) .timeline-content {
        grid-column: 2;
        grid-row: 1;
        justify-self: stretch;
    }

    .timeline-marker {
        justify-content: flex-start;
        min-height: 68px;
    }

    .timeline-dot {
        width: 30px;
        height: 30px;
    }

    .timeline-dot::before,
    .timeline-dot::after {
        width: 34px;
    }

    .timeline-content {
        min-height: 0;
        border-width: 2px;
        border-radius: 18px;
        padding: 1rem 1.05rem;
    }

    .achievement-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .gallery-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .contact-cards {
        grid-template-columns: 1fr;
    }
}
@media (max-width: 480px) {
    .achievement-grid {
        grid-template-columns: 1fr;
    }

    .gallery-grid {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 980px) {
    .leader-blue .verde-heading {
        transform: none;
        text-align: center;
        pointer-events: auto;
    }
}

/* Enhanced hover feedback for the heritage page */
@media (hover: hover) and (pointer: fine) {
    .achievement-icon,
    .gallery-caption,
    .contact-card h3 {
        transition: transform var(--transition), color var(--transition), text-shadow var(--transition);
    }

    .achievement-card:hover {
        border-color: rgba(100, 255, 146, .42);
        box-shadow: 0 18px 34px rgba(0, 0, 0, .22), 0 0 20px rgba(47, 214, 111, .1);
    }

    .achievement-card:hover .achievement-icon {
        transform: translateY(-4px) rotate(-5deg) scale(1.12);
    }

    .gallery-item {
        transition: transform var(--transition), box-shadow var(--transition);
    }

    .gallery-caption {
        transform: translateY(12px);
    }

    .gallery-item:hover {
        box-shadow: 0 20px 38px rgba(0, 0, 0, .28), 0 0 20px rgba(47, 214, 111, .12);
        transform: translateY(-5px);
    }

    .gallery-item:hover .gallery-caption {
        transform: translateY(0);
    }

    .contact-card:hover {
        border-color: rgba(100, 255, 146, .42);
        box-shadow: 0 18px 34px rgba(0, 0, 0, .2);
        transform: translateY(-5px);
    }

    .contact-card:hover h3 {
        color: var(--green-neon);
        text-shadow: 0 0 16px rgba(100, 255, 146, .35);
    }

    .timeline-content:hover h3 {
        color: var(--green-neon);
    }
}

@media (prefers-reduced-motion: reduce) {
    .achievement-icon,
    .gallery-item,
    .gallery-caption,
    .contact-card h3 {
        transition: none;
    }
}