:root {
    --bg-color: #e6f0fa;
    --planet-1-bg: linear-gradient(135deg, #f8fafc 0%, #cbd5e0 80%);
    --planet-1-shadow: rgba(0, 0, 0, 0.05);
    --planet-2-bg: linear-gradient(135deg, #e2e8f0 0%, #94a3b8 80%);
    --planet-2-shadow: rgba(0, 0, 0, 0.08);
    --planet-2-opacity: 0.7;
    --particle-color: #4a5568;
    --stars-opacity: 0.5;

    --title-color: #0056B3;
    --text-main: #1a202c;
    --desc-color: #333333;
    --nav-bg: linear-gradient(to bottom, rgba(255,255,255,0.9), transparent);
    --nav-scrolled-bg: rgba(255, 255, 255, 0.95);
    --nav-link-color: #333333;
    --nav-shadow: rgba(0, 0, 0, 0.08);

    --footer-bg-mode: #e6f0fa;
    --footer-text-mode: #333333;
    --footer-heading-mode: #0056B3;
    --footer-accred-heading-mode: #0056B3;
    --footer-accred-text-mode: #555555;
    --footer-wave-1: rgba(0,0,0,0.03);
    --footer-wave-2: rgba(0,0,0,0.02);
    --footer-arc-line: rgba(0,0,0,0.03);

    --timeline-track: rgba(0,0,0,0.1);
    --timeline-node-bg: #f8fafc;
    --timeline-node-border: rgba(0,0,0,0.2);
    --indicator-color: #333333;
    --icon-shadow: none;
    --scene6-shadow: none;

    --brand-navy: #082567; 
    --blue-600: #0056B3; 
    --transition-sharp: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    --t-fast: 0.3s ease;
}

body.dark-mode {
    --bg-color: #030508;
    --planet-1-bg: linear-gradient(135deg, #2a2a72 0%, #000000 80%);
    --planet-1-shadow: rgba(42, 42, 114, 0.6);
    --planet-2-bg: linear-gradient(135deg, #2a2540 0%, #0a0a12 80%);
    --planet-2-shadow: rgba(42, 37, 64, 0.8);
    --planet-2-opacity: 0.85;
    --particle-color: #ffffff;
    --stars-opacity: 0.15;

    --title-color: #00CCFF;
    --text-main: #f5f5f5;
    --desc-color: #f5f5f5;
    --nav-bg: linear-gradient(to bottom, rgba(0,0,0,0.85), transparent);
    --nav-scrolled-bg: rgba(3, 5, 8, 0.95);
    --nav-link-color: #e0e0e0;
    --nav-shadow: rgba(0, 0, 0, 0.5);

    --footer-bg-mode: #060F26;
    --footer-text-mode: #bee0ff;
    --footer-heading-mode: #00afff;
    --footer-accred-heading-mode: #00afff;
    --footer-accred-text-mode: #bee0ff;
    --footer-wave-1: rgba(255,255,255,0.028);
    --footer-wave-2: rgba(255,255,255,0.016);
    --footer-arc-line: rgba(255,255,255,0.03);

    --timeline-track: rgba(255, 255, 255, 0.15);
    --timeline-node-bg: #030508;
    --timeline-node-border: rgba(255, 255, 255, 0.3);
    --indicator-color: #F2F2F2;
    --icon-shadow: 0 0 10px rgba(0, 204, 255, 0.6);
    --scene6-shadow: 0 0 30px rgba(0, 204, 255, 0.5);
}

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

body {
    background-color: var(--bg-color); 
    font-family: Helvetica, Arial, sans-serif;
    color: var(--text-main);
    overflow-x: hidden;
    transition: background-color 0.8s ease, color 0.8s ease;
}

.parallax-spacer {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 750vh; 
    z-index: -10;
}

nav {
    display: flex; justify-content: space-between; align-items: center;
    padding: 0.8rem 5%; position: fixed; width: 100%; top: 0; 
    z-index: 9999; 
    transition: background 0.8s ease, box-shadow 0.3s ease;
    background: var(--nav-bg);
}

nav.scrolled {
    background: var(--nav-scrolled-bg); 
    box-shadow: 0 4px 20px var(--nav-shadow);
}

.nav-left {
    display: flex;
    align-items: center;
    gap: 1.5rem;
}

.logo-box { text-decoration: none; display: flex; align-items: center; justify-content: center; transition: var(--transition-sharp); }

.nav-logo-img {
    height: 60px;
    width: auto;
    display: block;
    transition: var(--transition-sharp);
}
.white-logo { display: none; }
.color-logo { display: block; }
body.dark-mode .white-logo { display: block; }
body.dark-mode .color-logo { display: none; }

.nav-right { display: flex; align-items: center; gap: 2rem; }
.nav-links { display: flex; gap: 2rem; list-style: none; font-weight: 700; font-size: 15px; text-transform: uppercase; letter-spacing: 0.5px;}
.nav-links a { display: flex; align-items: center; gap: 6px; color: var(--nav-link-color); padding: 0.5rem 0; position: relative; transition: color 0.8s ease; text-decoration: none; }
.nav-links a::after { content: ''; position: absolute; bottom: 0; left: 0; width: 0%; height: 2px; background-color: var(--blue-600); transition: var(--transition-sharp); }
body.dark-mode .nav-links a::after { background-color: #FFFFFF; }
.nav-links a:hover { color: var(--blue-600); }
body.dark-mode .nav-links a:hover { color: #FFFFFF; }
.nav-links a:hover::after { width: 100%; }

.mobile-home-link {
    display: none; 
    color: var(--nav-link-color);
    font-size: 15px;
    font-weight: 700;
    text-transform: uppercase;
    text-decoration: none;
    align-items: center;
    gap: 6px;
    transition: color 0.8s ease;
}
.mobile-home-link i { color: var(--nav-link-color); transition: color 0.8s ease; font-size: 1.1rem; }
.mobile-home-link:hover, .mobile-home-link:hover i { color: var(--blue-600); }
body.dark-mode .mobile-home-link:hover, body.dark-mode .mobile-home-link:hover i { color: #FFFFFF; }

.mobile-sign-in-li { display: none; }

.menu-toggle { display: none; font-size: 1.8rem; color: var(--nav-link-color); cursor: pointer; transition: color 0.8s ease; }
.menu-toggle i { transition: transform 0.3s ease-in-out; }
.menu-toggle i.fa-xmark { transform: rotate(90deg); }

.sign-in-btn {
    display: flex; align-items: center; justify-content: center; gap: 0.6rem;
    background-color: #BDBDBD; color: #0E2A47; border: none; font-weight: 800; font-size: 14px; text-transform: uppercase;
    padding: 0.8rem 1.8rem; border-radius: 50px; cursor: pointer; transition: var(--transition-sharp);
}
.sign-in-btn:hover { background-color: #0868B2 !important; color: #f2f2f2 !important; }
body.dark-mode .sign-in-btn:hover { background-color: #f2f2f2 !important; color: #0868B2 !important; }

.theme-switch-wrapper { display: flex; align-items: center; margin-right: 0.5rem; }
.theme-icon-toggle { cursor: pointer; display: inline-flex; align-items: center; justify-content: center; width: 35px; height: 35px; position: relative; }
.theme-icon-toggle input { display: none; }
.icon-container { position: relative; display: flex; align-items: center; justify-content: center; width: 100%; height: 100%; font-size: 1.4rem; }

.sun-icon { 
    color: #FF7F00; 
    position: absolute; 
    opacity: 1; 
    transform: rotate(0) scale(1); 
    transition: transform 0.4s ease, opacity 0.4s ease; 
}
.moon-stars { 
    color: var(--nav-link-color); 
    position: absolute; 
    opacity: 0; 
    transform: rotate(-90deg) scale(0.5); 
    transition: transform 0.4s ease, opacity 0.4s ease, color 0.8s ease; 
}
.moon-stars .moon-icon { font-size: 1.4rem; }
.moon-stars .star { position: absolute; color: inherit; }
.moon-stars .star-1 { font-size: 6px; top: -2px; left: -8px; }
.moon-stars .star-2 { font-size: 4px; bottom: 0; right: -5px; }

input:checked ~ .icon-container .sun-icon { 
    opacity: 0; 
    transform: rotate(90deg) scale(0.5); 
}
input:checked ~ .icon-container .moon-stars { 
    opacity: 1; 
    transform: rotate(0) scale(1); 
}

.br-mobile { display: inline; }

.timeline-container {
    position: fixed; 
    right: 40px;
    top: 20vh;
    height: 60vh;
    width: 3px; 
    background: var(--timeline-track);
    z-index: 100; 
    transition: background 0.8s ease;
}

.timeline-progress {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: var(--scroll-progress, 0%); 
    background: linear-gradient(to bottom, #00E5FF, #0056B3);
    box-shadow: 0 0 15px rgba(0, 86, 179, 0.8);
    transition: height 0.15s ease-out, width 0.15s ease-out;
}

.timeline-node {
    position: absolute;
    left: 50%;
    transform: translateX(-50%);
    width: 14px;
    height: 14px;
    border-radius: 50%;
    background: var(--timeline-node-bg);
    border: 2px solid var(--timeline-node-border);
    transition: all 0.3s ease, background 0.8s ease, border-color 0.8s ease;
}

.timeline-node.active {
    background: #0089FF;
    border-color: #FFFFFF;
    box-shadow: 0 0 20px #0089FF;
    transform: translateX(-50%) scale(1.3);
}

.node-label {
    position: absolute;
    right: 30px; 
    top: 50%;
    transform: translateY(-50%);
    color: var(--desc-color);
    font-size: 0.8rem;
    text-transform: uppercase;
    letter-spacing: 2px;
    white-space: nowrap;
    opacity: 0;
    transition: all 0.4s ease, color 0.8s ease;
    font-weight: 700;
    font-style: oblique;
}

.timeline-node.active .node-label {
    opacity: 1;
    color: var(--text-main);
    right: 25px; 
}

.viewport {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100vh;
    overflow: hidden;
    display: flex;
    align-items: center;
    justify-content: center;
    perspective: 1200px; 
    z-index: 1;
}

.layer {
    position: absolute;
    width: 100%;
    height: 100%;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    text-align: center;
    will-change: transform, opacity, filter;
    pointer-events: none; 
    transform-style: preserve-3d;
}

.bg-layer { z-index: 1; }

.planet {
    position: absolute;
    border-radius: 50%;
    will-change: transform;
}

#planet-1 {
    width: 350px;
    height: 350px;
    background: var(--planet-1-bg);
    box-shadow: -20px 20px 60px var(--planet-1-shadow);
    transition: background 0.8s ease, box-shadow 0.8s ease;
}

#planet-2 {
    background: var(--planet-2-bg);
    box-shadow: 20px -20px 80px var(--planet-2-shadow);
    opacity: var(--planet-2-opacity);
    transition: background 0.8s ease, box-shadow 0.8s ease, opacity 0.8s ease;
}

.stars-layer {
    z-index: 2;
    background-image: radial-gradient(var(--particle-color) 1px, transparent 1px);
    background-size: 80px 80px;
    opacity: var(--stars-opacity);
    transition: background-image 0.8s ease, opacity 0.8s ease;
}

.scene {
    z-index: 3;
    opacity: 0; 
}

#scene-1 { opacity: 1; } 

h1, h2 {
    font-weight: 800;
    margin-top: 3rem; 
    margin-bottom: 3rem;
    line-height: 1.1;
    text-transform: uppercase;
    letter-spacing: 1px;
    color: var(--title-color); 
    font-style: oblique;
    transition: color 0.8s ease;
}

.intro-desc {
    max-width: 980px;
    margin: 0 auto 1.5rem auto;
    font-size: 1.15rem;
    color: #000000;
    font-weight: 500;
    line-height: 1.6;
    transition: color 0.8s ease;
}
body.dark-mode .intro-desc {
    color: #f2f2f2;
}

.logo-transition {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 2.5rem;
    margin-top: 1.5rem;
    width: 100%;
}

.logo-block {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.8rem;
    flex: 1;
    max-width: 220px;
}

.logo-transition img {
    height: 80px;
    width: auto;
    border-radius: 12px;
    box-shadow: 0 10px 25px rgba(0,0,0,0.15);
    background: #ffffff;
    padding: 12px 18px;
    object-fit: contain;
}
body.dark-mode .logo-transition img {
    box-shadow: 0 10px 25px rgba(0,0,0,0.4);
}

.logo-year {
    font-size: 1rem;
    font-weight: 800;
    color: var(--title-color);
    text-transform: uppercase;
    letter-spacing: 2px;
}

.transition-arrow {
    font-size: 2.5rem;
    color: var(--title-color);
    opacity: 0.8;
    margin-bottom: 1.2rem; 
    animation: moveArrow 2s infinite ease-in-out;
}

@keyframes moveArrow {
    0%, 100% { transform: translateX(-5px); }
    50% { transform: translateX(5px); }
}

.legacy-list {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 1.2rem;
    text-align: left;
    max-width: 800px;
    margin: 0 auto;
}

.legacy-list li {
    font-size: 1.15rem;
    color: var(--desc-color);
    line-height: 1.6;
    font-weight: 400;
    position: relative;
    padding-left: 24px; 
    transition: color 0.8s ease;
}

.legacy-list li strong { 
    color: var(--title-color); 
    font-style: oblique;
    transition: color 0.8s ease;
}

.legacy-list li i { 
    position: absolute;
    left: 0;
    top: 11px; 
    font-size: 5px; 
    color: var(--title-color);
    text-shadow: var(--icon-shadow); 
    transition: color 0.8s ease, text-shadow 0.8s ease;
}

#scene-7 h2 { 
    white-space: nowrap; 
    text-shadow: var(--scene6-shadow);
    transition: color 0.8s ease, text-shadow 0.8s ease;
}

.scroll-indicator {
    margin-top: 6rem;
    text-transform: uppercase;
    letter-spacing: 2px;
    color: var(--indicator-color);
    opacity: 0.8;
    animation: bounce 2s infinite ease-in-out;
    font-style: oblique;
    transition: color 0.8s ease;
}

@keyframes bounce {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(10px); }
}

/* --- Footer Integration --- */
.footer-wrapper {
    position: absolute;
    top: 750vh; 
    width: 100%;
    z-index: 9000;
    background: var(--footer-bg-mode);
    transition: background 0.8s ease;
}

footer {
    background: var(--footer-bg-mode); 
    color: var(--footer-text-mode); 
    padding: 5rem 5% 1.5rem; 
    font-size: 0.95rem; 
    position: relative; 
    overflow: hidden;
    min-height: 90vh; 
    display: flex;
    flex-direction: column;
    transition: background 0.8s ease, color 0.8s ease;
}

footer > *:not(.footer-wave-bg) { position: relative; z-index: 1; }
.footer-wave-bg { position: absolute; inset: 0; pointer-events: none; z-index: 0; }
.footer-wave { position: absolute; bottom: 0; left: 0; width: 100%; height: 65%; transition: fill 0.8s ease; }
.footer-wave-1 { fill: var(--footer-wave-1); }
.footer-wave-2 { fill: var(--footer-wave-2); height: 50%; }
.footer-arc-lines { position: absolute; top: 0; right: 0; width: 55%; height: 100%; }
.footer-arc-g { stroke: var(--footer-arc-line); transition: stroke 0.8s ease; }

.footer-grid { 
    display: grid; 
    grid-template-columns: 2fr 1fr 1fr 1fr; 
    gap: 4rem; 
    margin-bottom: 2.5rem; 
    margin-top: auto; 
}

.footer-col-main { 
    display: flex; 
    flex-direction: column; 
    align-items: flex-start; 
    text-align: left; 
}

.footer-logo-img { 
    width: 200px; 
    height: auto; 
    display: block; 
    margin: 0 0 1.25rem 0; 
    background: transparent; 
    padding: 10px 14px; 
    border-radius: 16px; 
    transition: background 0.8s ease;
}
body.dark-mode .footer-logo-img { 
    background: #ffffff; 
}

.footer-col-main p { 
    color: #0E2A47; 
    font-size: 1rem; 
    font-family: Helvetica, Arial, sans-serif;
    font-weight: 700; 
    font-style: oblique;
    line-height: 1.65; 
    max-width: 200px; 
    margin: 0; 
    text-align: left;
    transition: color 0.8s ease; 
}
body.dark-mode .footer-col-main p {
    color: #f2f2f2;
}

.footer-col-main .social-links { display: flex; gap: 0.8rem; align-items: center; margin-top: 1.5rem; }
.social-btn {
    width: 2.5rem; height: 2.5rem; border-radius: 8px; 
    background: rgba(125,125,125,0.06); 
    display: flex; align-items: center; justify-content: center;
    color: var(--footer-text-mode); font-size: 1.2rem; 
    border: 1px solid rgba(0,0,0,0.1); 
    transition: all var(--t-fast);
    text-decoration: none !important; 
}
body.dark-mode .social-btn { 
    background: rgba(255,255,255,0.06); 
    border-color: rgba(255,255,255,0.06); 
}
.social-btn.facebook:hover  { color: #1877F2; background: rgba(24,119,242,0.12);  border-color: rgba(24,119,242,0.35);  transform: translateY(-3px); box-shadow: 0 0 14px 3px rgba(24,119,242,0.45);  }
.social-btn.instagram:hover { color: #E1306C; background: rgba(225,48,108,0.12);  border-color: rgba(225,48,108,0.35);  transform: translateY(-3px); box-shadow: 0 0 14px 3px rgba(225,48,108,0.45);  }
.social-btn.whatsapp:hover  { color: #25D366; background: rgba(37,211,102,0.12);  border-color: rgba(37,211,102,0.35);  transform: translateY(-3px); box-shadow: 0 0 14px 3px rgba(37,211,102,0.45);  }
.social-btn.youtube:hover   { color: #FF0000; background: rgba(255,0,0,0.12);     border-color: rgba(255,0,0,0.35);     transform: translateY(-3px); box-shadow: 0 0 14px 3px rgba(255,0,0,0.45);     }
.social-btn.twitter:hover   { color: var(--text-main); background: rgba(125,125,125,0.10); border-color: rgba(125,125,125,0.30); transform: translateY(-3px); box-shadow: 0 0 14px 3px rgba(125,125,125,0.25); }
.social-btn.linkedin:hover  { color: #0A66C2; background: rgba(10,102,194,0.12);  border-color: rgba(10,102,194,0.35);  transform: translateY(-3px); box-shadow: 0 0 14px 3px rgba(10,102,194,0.45);  }

.footer-links h3 { 
    color: var(--footer-heading-mode); 
    font-size: 1.2rem; 
    font-weight: 800; 
    letter-spacing: 0.06em; 
    text-transform: uppercase; 
    margin-bottom: 1.25rem; 
    font-style: oblique; 
    transition: color 0.8s ease; 
}
body.dark-mode .footer-links h3 {
    color: #ffffff;
}

.footer-links ul { list-style: none; }
.footer-links ul li { margin-bottom: 0.7rem; }

.footer-links ul li a { 
    color: var(--footer-text-mode); 
    font-size: 1rem; 
    font-weight: 400; 
    transition: color var(--t-fast), padding-left var(--t-fast); 
    text-decoration: none !important; 
}
.footer-links ul li a:hover { color: var(--footer-heading-mode); padding-left: 4px; }
body.dark-mode .footer-links ul li a:hover { color: #fff; }

.footer-accreditations { padding: 1.25rem 0 2rem; margin-bottom: 1.75rem; position: relative; }
.footer-accreditations::before { content: ''; display: block; width: 280px; max-width: 60%; height: 0; border-top: 2px dashed rgba(125,125,125,0.28); margin: 0 auto 1.75rem; transition: border-top 0.8s ease; }
body.dark-mode .footer-accreditations::before { border-top-color: rgba(255,255,255,0.28); }

.accred-row { display: flex; align-items: center; justify-content: center; gap: 1.25rem; flex-wrap: wrap; }
.accred-label { font-size: 0.92rem; font-weight: 800; letter-spacing: 0.1em; text-transform: uppercase; color: var(--footer-accred-heading-mode); white-space: nowrap; flex-shrink: 0; font-style: oblique; transition: color 0.8s ease; }
.accred-pipe { color: var(--footer-accred-text-mode); font-size: 1.1rem; flex-shrink: 0; transition: color 0.8s ease; }
.accred-badges { display: flex; align-items: center; flex-wrap: wrap; gap: 1rem 2.5rem; }
.accred-badge { display: flex; flex-direction: row; align-items: center; gap: 0.75rem; color: var(--footer-accred-text-mode); font-size: 0.75rem; font-weight: 700; letter-spacing: 0.04em; text-transform: uppercase; transition: color var(--t-fast); }
.accred-badge:hover { color: var(--footer-accred-heading-mode); }

.accred-logo-wrap { 
    height: 46px; 
    min-width: 80px; 
    max-width: 120px; 
    padding: 0.5rem 0.9rem; 
    background: rgba(255,255,255,0.92); 
    border-radius: 10px; 
    border: 1px solid rgba(0,0,0,0.1); 
    display: flex; 
    align-items: center; 
    justify-content: center; 
    flex-shrink: 0; 
    transition: background var(--t-fast), transform var(--t-fast), box-shadow var(--t-fast), border-color 0.8s ease; 
    box-shadow: 0 2px 8px rgba(0,0,0,0.18); 
}
body.dark-mode .accred-logo-wrap { border-color: rgba(255,255,255,0.15); }
.accred-logo-wrap img { height: 28px; width: auto; max-width: 100px; object-fit: contain; }

.accred-logo-dhl { 
    padding: 0 !important; 
    overflow: hidden; 
    background: transparent !important;
}
.accred-logo-dhl img { 
    height: 100% !important; 
    width: 100% !important; 
    max-width: 100% !important; 
    object-fit: cover !important; 
    display: block;
    border-radius: 9px;
}

.accred-badge:hover .accred-logo-wrap { background: #fff; transform: translateY(-3px); box-shadow: 0 6px 18px rgba(0,0,0,0.22); }
.accred-badge:hover .accred-logo-dhl { background: transparent !important; }

.accred-badge + .accred-badge { position: relative; }
.accred-badge + .accred-badge::before { content: ''; position: absolute; left: -1.25rem; top: 50%; transform: translateY(-50%); width: 1px; height: 28px; background: rgba(125,125,125,0.15); transition: background 0.8s ease; }
body.dark-mode .accred-badge + .accred-badge::before { background: rgba(255,255,255,0.15); }

.footer-bottom { 
    border-top: 1px solid rgba(0,0,0,0.10); 
    padding-top: 1.5rem; 
    text-align: center; 
    color: var(--footer-text-mode); 
    font-size: 0.88rem; 
    margin-top: auto; 
    transition: color 0.8s ease, border-top 0.8s ease;
}
body.dark-mode .footer-bottom { border-top-color: rgba(255,255,255,0.20); }


/* ========================================================= */
/* STRICT RESPONSIVE MEDIA QUERIES                           */
/* ========================================================= */

@media (max-width: 767px) {
    .timeline-container { 
        display: block; 
        position: fixed; 
        top: auto; 
        bottom: 30px; 
        left: 5%; 
        right: 5%; 
        width: 90%; 
        height: 3px; 
        z-index: 100;
    }
    .timeline-progress {
        height: 100% !important; 
        width: var(--scroll-progress, 0%) !important; 
        background: linear-gradient(to right, #00E5FF, #0056B3);
        transition: width 0.15s ease-out;
    }
    
    .timeline-node {
        top: 50% !important;
        transform: translateY(-50%) !important;
    }
    .timeline-node.active {
        transform: translateY(-50%) scale(1.3) !important;
    }

    #node-1 { left: 0%; }
    #node-2 { left: 20%; }
    #node-3 { left: 40%; }
    #node-4 { left: 60%; }
    #node-5 { left: 80%; }
    #node-6 { left: 100%; }
    
    .node-label {
        white-space: nowrap;
        text-align: center;
        width: auto;
        line-height: 1.1;
        font-size: 0.65rem;
        top: -40px !important;
        left: 50% !important;
        transform: translateX(-50%) !important;
    }
    
    #node-1 .node-label, #node-1.active .node-label {
        left: -5px !important;
        transform: none !important;
        text-align: left;
    }
    
    #node-6 .node-label, #node-6.active .node-label {
        left: auto !important;
        right: -5px !important;
        transform: none !important;
        text-align: right;
    }

    .nav-logo-img { height: 40px; }
    
    .mobile-home-link { display: flex; font-size: 1.2rem; }
    .desktop-home-li { display: none !important; }
    .home-text { display: none; }
    .nav-right { gap: 1.2rem; }

    .desktop-sign-in { display: none; } 
    .mobile-sign-in-li { display: block; margin-top: 2rem; border-top: 1px solid rgba(125,125,125,0.1); padding-top: 2rem; }
    body.dark-mode .mobile-sign-in-li { border-top-color: rgba(255,255,255,0.1); }
    
    .nav-links a { color: #0868b2 !important; }
    body.dark-mode .nav-links a { color: #f2f2f2 !important; }
    
    .sign-in-btn { width: 100%; padding: 1.2rem; }
    .nav-links { display: none; margin: 0; width: 100%; } 
    .menu-toggle { display: block; }
    
    .scene { padding: 0 8vw; padding-bottom: 50px; } 
    h1, h2 { font-size: 1.25rem !important; margin-top: 0; margin-bottom: 1.5rem; line-height: 1.2;} 
    
    .intro-desc { font-size: 0.95rem; margin-bottom: 1.5rem; }
    .logo-transition { flex-direction: row; gap: 1rem; margin-top: 1rem; flex-wrap: nowrap; justify-content: center;}
    .logo-block { max-width: 140px; }
    .logo-transition img { height: 50px; padding: 8px 12px; }
    .logo-year { font-size: 0.85rem; margin-top: 0; }
    .transition-arrow { font-size: 1.5rem; margin-bottom: 0; }

    .legacy-list { gap: 0.9rem; max-width: 100%; width: 100%; margin: 0 auto; }
    .legacy-list li { font-size: 0.85rem !important; max-width: 100%; line-height: 1.4; padding-left: 20px;}
    .legacy-list li i { top: 6px; font-size: 4px; } 
    .scroll-indicator { font-size: 0.75rem; margin-top: 3rem; }

    .footer-col-main { align-items: center; text-align: center; } 
    .footer-grid { grid-template-columns: 1fr; gap: 2.5rem; text-align: center; }
    .footer-col-main img { margin-left: auto; margin-right: auto; }
    .footer-col-main p { margin-left: auto; margin-right: auto; text-align: left; max-width: 200px; }
    .footer-links h3, .footer-links ul li { text-align: center; }
    .footer-links ul li a:hover { padding-left: 0; }
    .social-links { justify-content: center; }
    .accred-row { flex-direction: column; gap: 0.8rem; }
    .accred-pipe { display: none; }
    .accred-badges { justify-content: center; gap: 1rem; flex-direction: column; }
    .accred-badge + .accred-badge::before { display: none; }
}

@media (min-width: 768px) and (max-width: 1024px) {
    .timeline-container { right: 20px; }
    .node-label { display: none; }
    
    .mobile-home-link { display: flex; }
    .desktop-home-li { display: none !important; }

    .desktop-sign-in { display: none; } 
    .mobile-sign-in-li { display: block; margin-top: 2rem; border-top: 1px solid rgba(125,125,125,0.1); padding-top: 2rem; }
    body.dark-mode .mobile-sign-in-li { border-top-color: rgba(255,255,255,0.1); }
    
    .nav-links a { color: #0868b2 !important; }
    body.dark-mode .nav-links a { color: #f2f2f2 !important; }
    
    .sign-in-btn { width: 100%; padding: 1.2rem; }
    .nav-links { display: none; margin: 0; width: 100%; } 
    .menu-toggle { display: block; }

    .scene { padding: 0 10%; }
    h1, h2 { font-size: 2.2rem !important; margin-top: 1rem; margin-bottom: 2rem; }
    .legacy-list li { font-size: 1.05rem !important; max-width: 600px; }
    .scroll-indicator { margin-top: 5rem; }
    
    .footer-grid { grid-template-columns: 1fr 1fr; gap: 2.5rem; }
}

@media screen and (min-width: 1024px) {
    .footer-col-main, 
    .footer-col-main p, 
    .footer-links, 
    .footer-links h3, 
    .footer-links ul li {
        text-align: left;
    }
    .footer-col-main {
        align-items: flex-start;
    }
}

@media (min-width: 1025px) and (max-width: 1440px) {
    .timeline-container { right: 30px; }
    .node-label { font-size: 0.75rem; right: 20px; }
    .timeline-node.active .node-label { right: 20px; }
    
    .scene { padding-left: 5%; padding-right: 180px; }
    h1, h2 { font-size: 2.6rem !important; }
    .legacy-list li { font-size: 1.1rem !important; max-width: 750px; }
}

@media (min-width: 1441px) and (max-width: 1600px) {
    .timeline-container { right: 40px; }
    .node-label { font-size: 0.8rem; right: 25px; }
    .timeline-node.active .node-label { right: 25px; }
    
    .scene { padding-left: 5%; padding-right: 220px; }
    h1, h2 { font-size: 2.8rem !important; }
    .legacy-list li { font-size: 1.15rem !important; max-width: 850px; }
}

@media (min-width: 1601px) and (max-width: 1920px) {
    .timeline-container { right: 50px; }
    .node-label { font-size: 0.85rem; right: 30px; }
    .timeline-node.active .node-label { right: 30px; }
    
    .scene { padding-left: 5%; padding-right: 250px; }
    h1, h2 { font-size: 3.2rem !important; }
    .legacy-list li { font-size: 1.2rem !important; max-width: 950px; }
}

@media (min-width: 1921px) {
    .timeline-container { right: 60px; }
    .node-label { font-size: 0.9rem; right: 35px; }
    .timeline-node.active .node-label { right: 35px; }
    
    .scene { padding-left: 5%; padding-right: 300px; }
    h1, h2 { font-size: 3.8rem !important; }
    .legacy-list li { font-size: 1.35rem !important; max-width: 1100px; }
}

/* Sign In is now an <a href="/login"> into the app; keep the original button look. */
a.sign-in-btn,
.nav-links a.sign-in-btn { text-decoration: none; }
.nav-links a.sign-in-btn::after { display: none; }
.nav-links a.sign-in-btn { color: #0E2A47 !important; }
.nav-links a.sign-in-btn:hover { color: #f2f2f2 !important; }
body.dark-mode .nav-links a.sign-in-btn:hover { color: #0868B2 !important; }