/*!
 * CSEC Design System v2.0 - Projects Module
 * Copyright (c) 2026 Civil and Structural Engineering Consultants (Pvt) Ltd.
 */

/* --- PROJECTS HERO & HALF-HEIGHT BANNER --- */
.projects-hero-section {
    position: relative;
    width: 100%;
    padding: 10rem 4rem 3rem 4rem;
    background-color: var(--fern-deep-forest);
}

.projects-hero-container {
    max-width: 1720px;
    margin: 0 auto;
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.projects-hero-title {
    font-size: 3.8rem;
    font-weight: 300;
    color: var(--text-warm-white);
}

.projects-hero-tagline {
    font-size: 1.15rem;
    color: var(--text-warm-muted);
    font-weight: 300;
    max-width: 800px;
}

.projects-video-banner {
    position: relative;
    width: 100%;
    height: 45vh;
    min-height: 320px;
    overflow: hidden;
    background-color: var(--fern-deep-forest);
    border-top: 1px solid rgba(255, 255, 255, 0.05);
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
}

.projects-video-banner video {
    width: 100%;
    height: 100%;
    object-fit: cover;
    filter: brightness(0.7);
}

.projects-video-dark-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: var(--warm-bay-bg, #f4f2ec);
    opacity: 0;
    transition: opacity 0.1s linear;
    z-index: 2;
    pointer-events: none;
}

.projects-video-banner .play-pause-btn {
    position: absolute;
    bottom: 2rem;
    left: 4rem;
    z-index: 10;
}

/* --- PROJECTS SECTION --- */
.projects-grid-section {
    position: relative;
    width: 100%;
    padding: 3.5rem 2rem 8rem 2rem;
    background-color: var(--warm-bay-bg, #f4f2ec);
    color: var(--fern-dark-green);
}

.projects-grid-container-wrapper {
    max-width: 1720px;
    margin: 0 auto;
    display: flex;
    flex-direction: column;
    gap: 3.5rem;
}

/* Streamlined All-Caps Category Navigation */
.filter-bar {
    display: flex;
    gap: 1.8rem 1.4rem;
    justify-content: center;
    align-items: center;
    flex-wrap: wrap;
    padding-bottom: 1.5rem;
    border-bottom: 1px solid rgba(55, 74, 56, 0.18);
}

.filter-link {
    font-size: 0.82rem;
    font-weight: 500;
    letter-spacing: 0.14em;
    text-transform: uppercase;
    color: var(--fern-dark-green);
    text-decoration: none;
    position: relative;
    padding: 0.4rem 0.2rem;
    transition: color 0.3s ease;
}

.filter-link::after {
    content: '';
    position: absolute;
    bottom: -2px;
    left: 0;
    width: 100%;
    height: 2px;
    background-color: var(--lime-green);
    transform: scaleX(0);
    transform-origin: left;
    transition: transform 0.3s cubic-bezier(0.77, 0, 0.175, 1);
}

.filter-link:hover, 
.filter-link.active {
    color: var(--fern-dark-green);
    font-weight: 600;
}

.filter-link:hover::after, 
.filter-link.active::after {
    transform: scaleX(1);
}

/* --- 4-COLUMN PROJECTS GRID --- */
.projects-grid-container {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 3.5rem 2.2rem;
    width: 100%;
}

.project-tile {
    flex: 0 1 calc(25% - 1.7rem);
    max-width: calc(25% - 1.7rem);
    min-width: 270px;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    background: transparent;
    box-sizing: border-box;
    cursor: pointer;
    position: relative;
}

/* Thin Crisp Vertical Divider */
@media (min-width: 1201px) {
    .project-tile:not(:nth-child(4n))::after {
        content: '';
        position: absolute;
        top: 4%;
        right: -1.1rem;
        width: 1px;
        height: 92%;
        background: linear-gradient(180deg, 
            transparent 0%, 
            var(--lime-green) 5%, 
            var(--lime-green) 95%, 
            transparent 100%
        );
        box-shadow: none;
        pointer-events: none;
    }
}

@media (min-width: 601px) and (max-width: 1200px) {
    .project-tile:not(:nth-child(2n))::after {
        content: '';
        position: absolute;
        top: 4%;
        right: -1.1rem;
        width: 1px;
        height: 92%;
        background: linear-gradient(180deg, 
            transparent 0%, 
            var(--lime-green) 5%, 
            var(--lime-green) 95%, 
            transparent 100%
        );
        box-shadow: none;
        pointer-events: none;
    }
}

/* Image Focus Bay */
.project-image-bay {
    position: relative;
    width: 100%;
    height: auto;
    background: transparent;
    overflow: hidden;
    border-radius: 0 !important;
    display: block;
    cursor: pointer;
}

.project-image-bay img {
    width: 100% !important;
    height: auto !important;
    display: block;
    border-radius: 0 !important;
    transition: transform 2s cubic-bezier(0.25, 1, 0.5, 1), filter 2s ease;
    filter: brightness(1);
}

.project-image-bay:hover img,
.project-image-bay.counting img {
    transform: scale(1.05);
    filter: brightness(0.85);
}

.project-category-tag {
    display: none !important;
}

/* Center-Out Circular Ripple */
.center-ripple-overlay {
    position: absolute;
    top: 50%;
    left: 50%;
    width: 20px;
    height: 20px;
    border-radius: 50%;
    background: radial-gradient(circle, rgba(0, 0, 0, 0.32) 0%, rgba(0, 0, 0, 0.15) 55%, transparent 75%);
    transform: translate(-50%, -50%) scale(0);
    opacity: 0;
    pointer-events: none;
    z-index: 4;
    transition: transform 0.2s ease, opacity 0.2s ease;
}

.project-image-bay:hover .center-ripple-overlay,
.project-image-bay.counting .center-ripple-overlay {
    opacity: 1;
    transform: translate(-50%, -50%) scale(35);
    transition: transform 2s cubic-bezier(0.1, 0.8, 0.3, 1), opacity 0.4s ease;
}

/* Details Below Image */
.project-details {
    display: flex;
    flex-direction: column;
    gap: 0.25rem;
    flex: 1;
    margin-top: 0.8rem;
}

.project-location {
    font-size: 0.74rem;
    text-transform: uppercase;
    letter-spacing: 0.12em;
    color: var(--fern-sage-green);
    font-weight: 600;
}

.project-name {
    font-size: 1.25rem;
    font-weight: 500;
    color: var(--fern-dark-green);
    line-height: 1.3;
    margin: 0.2rem 0 0.4rem 0;
    position: relative;
    display: inline-block;
    width: fit-content;
    transition: color 0.3s ease;
}

.project-name::after {
    content: '';
    position: absolute;
    bottom: -3px;
    left: 0;
    width: 100%;
    height: 2px;
    background-color: var(--proj-theme-accent, var(--lime-green));
    box-shadow: 0 0 6px rgba(164, 214, 94, 0.35);
    transform: scaleX(0);
    transform-origin: left;
    transition: transform 0.35s cubic-bezier(0.77, 0, 0.175, 1);
}

.project-tile:hover .project-name::after {
    transform: scaleX(1);
}

.project-short-desc {
    font-size: 0.86rem;
    line-height: 1.6;
    color: rgba(55, 74, 56, 0.78);
    font-weight: 300;
    display: -webkit-box;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.project-tile.pulse-highlight .project-image-bay {
    box-shadow: 0 0 35px var(--lime-neon-glow) !important;
    border: 2px solid var(--lime-green) !important;
}

.no-projects-msg {
    text-align: center;
    font-size: 1.15rem;
    color: var(--fern-dark-green);
    padding: 3rem 0;
    width: 100%;
}

/* ==========================================================================
   GLOBAL INTERACTIVE MAP
   ========================================================================== */
.map-showcase-wrapper,
.curated-showcase-block {
    display: flex;
    flex-direction: column;
    gap: 2.2rem;
    width: 100%;
}

.showcase-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-end;
    flex-wrap: wrap;
    gap: 1.2rem;
}

.showcase-header.text-center-header {
    flex-direction: column;
    align-items: center;
    text-align: center;
}

.showcase-kicker {
    font-size: 0.8rem;
    text-transform: uppercase;
    letter-spacing: 0.22em;
    color: var(--fern-dark-green);
    font-weight: 700;
}

.showcase-title {
    font-size: 2.4rem;
    font-weight: 300;
    color: var(--fern-dark-green);
    line-height: 1.15;
    margin-top: 0.3rem;
}

.showcase-desc {
    font-size: 1.05rem;
    line-height: 1.7;
    color: rgba(55, 74, 56, 0.85);
    font-weight: 300;
    max-width: 850px;
}

.showcase-desc.center-desc {
    text-align: center;
    margin: 0 auto;
}

.view-category-pill {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.55rem 1.4rem;
    border-radius: 30px;
    background-color: var(--card-dark-brown);
    color: var(--lime-green);
    font-size: 0.82rem;
    text-transform: uppercase;
    letter-spacing: 0.12em;
    font-weight: 600;
    text-decoration: none;
    border: 1px solid rgba(164, 214, 94, 0.3);
    transition: all 0.3s cubic-bezier(0.25, 1, 0.5, 1);
}

.view-category-pill:hover {
    background-color: var(--lime-green);
    color: var(--fern-dark-green);
    box-shadow: 0 0 15px var(--lime-neon-glow);
    transform: translateY(-2px);
}

/* --- THE GLOBAL MAP CARD --- */
.global-map-card {
    width: 100%;
    height: 700px;
    border-radius: 16px;
    overflow: hidden;
    background-color: #242424;
    border: 2px solid rgba(55, 74, 56, 0.35);
    box-shadow: 0 20px 50px rgba(0, 0, 0, 0.18);
    position: relative;
    z-index: 10;
}

.csec-interactive-map {
    width: 100% !important;
    height: 100% !important;
    min-height: 700px;
    background-color: #242424;
}

/* Converts official OpenStreetMap tiles to architectural dark mode */
.csec-interactive-map .leaflet-tile-pane {
    filter: invert(100%) hue-rotate(180deg) brightness(95%) contrast(90%);
}

/* Force markers and popups in front of the filtered tiles */
.csec-interactive-map .leaflet-marker-pane {
    z-index: 999 !important;
}

.csec-interactive-map .leaflet-popup-pane {
    z-index: 1000 !important;
}

/* Crisp Clean Droplet Pin (No Unnatural Blurry Glow) */
.custom-droplet-marker {
    background: transparent !important;
    border: none !important;
}

.lime-droplet-pin {
    width: 30px;
    height: 38px;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    /* Clean, crisp drop shadow without neon fuzz */
    filter: drop-shadow(0 2px 4px rgba(0, 0, 0, 0.5));
    transition: transform 0.25s cubic-bezier(0.25, 1, 0.5, 1);
}

.lime-droplet-pin:hover {
    transform: scale(1.25) translateY(-4px);
}

.droplet-svg {
    width: 100%;
    height: 100%;
}

/* Map Popup Card */
.leaflet-popup-content-wrapper {
    background-color: #121713 !important;
    color: #f4f2ec !important;
    border-radius: 12px !important;
    border: 1px solid var(--lime-green) !important;
    box-shadow: 0 15px 35px rgba(0, 0, 0, 0.5) !important;
    padding: 0 !important;
    overflow: hidden;
}

.leaflet-popup-tip {
    background-color: #121713 !important;
    border-top: 1px solid var(--lime-green);
}

.map-popup-card {
    display: flex;
    flex-direction: column;
    width: 250px;
    overflow: hidden;
}

.popup-thumb-box {
    width: 100%;
    height: height;
    overflow: hidden;
    background-color: #000;
}

.popup-thumb-box img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.popup-info-body {
    padding: 1rem 1.2rem;
    display: flex;
    flex-direction: column;
    gap: 0.3rem;
}

.popup-cat-badge {
    font-size: 0.68rem;
    text-transform: uppercase;
    letter-spacing: 0.15em;
    color: var(--lime-green);
    font-weight: 600;
}

.popup-title {
    font-size: 1.15rem;
    font-weight: 400;
    color: #ffffff;
    line-height: 1.2;
}

.popup-loc {
    font-size: 0.75rem;
    color: #b3a998;
}

.popup-action-link {
    margin-top: 0.5rem;
    font-size: 0.75rem;
    color: var(--lime-green);
    text-decoration: none;
    font-weight: 600;
    display: inline-flex;
    align-items: center;
    gap: 0.3rem;
}

.popup-action-link:hover {
    text-decoration: underline;
}

/* ==========================================================================
   EXPLORE SPECIALIZED PORTFOLIOS
   ========================================================================== */
.category-bays-grid {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 1.8rem;
    width: 100%;
    margin: 0 auto;
}

.category-bay-card {
    flex: 0 1 calc(25% - 1.8rem);
    min-width: 260px;
    max-width: 320px;
    background-color: var(--card-dark-brown);
    border: 1px solid rgba(55, 74, 56, 0.4);
    border-radius: 14px;
    padding: 2.2rem 1.8rem;
    text-decoration: none;
    color: var(--text-warm-white);
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    gap: 1.5rem;
    box-shadow: 0 12px 30px rgba(0, 0, 0, 0.14);
    transition: transform 0.35s cubic-bezier(0.25, 1, 0.5, 1), border-color 0.35s ease, box-shadow 0.35s ease;
}

.category-bay-card:hover {
    transform: scale(1.04) translateY(-6px);
    border-color: var(--lime-green);
    box-shadow: 0 20px 45px rgba(164, 214, 94, 0.25);
}

.bay-card-kicker {
    font-size: 0.72rem;
    text-transform: uppercase;
    letter-spacing: 0.18em;
    color: var(--text-warm-taupe);
    font-weight: 600;
}

.bay-card-title {
    font-size: 1.45rem;
    font-weight: 300;
    color: #ffffff;
    line-height: 1.25;
    transition: color 0.3s ease;
}

.category-bay-card:hover .bay-card-title {
    color: var(--lime-green);
}

.bay-card-footer {
    display: flex;
    justify-content: space-between;
    align-items: center;
    border-top: 1px solid rgba(255, 255, 255, 0.08);
    padding-top: 1rem;
}

.bay-count-badge {
    font-size: 0.8rem;
    color: var(--lime-green);
    font-weight: 500;
}

.bay-arrow {
    font-size: 1.4rem;
    color: var(--text-warm-muted);
    transition: transform 0.3s ease, color 0.3s ease;
}

.category-bay-card:hover .bay-arrow {
    transform: translateX(4px);
    color: var(--lime-green);
}

/* ==========================================================================
   FULLSCREEN MEGA PROJECTOR MODAL
   ========================================================================== */
.mega-projector-backdrop {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    background: rgba(10, 15, 11, 0.94);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    z-index: 300;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.4s ease;
}

.mega-projector-backdrop.active {
    opacity: 1;
    pointer-events: auto;
}

.mega-projector-modal {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    max-width: 100vw;
    max-height: 100vh;
    background-color: var(--proj-bg, #121713);
    border: none;
    border-radius: 0;
    box-shadow: none;
    z-index: 350;
    overflow: hidden;
    opacity: 0;
    visibility: hidden;
    pointer-events: none;
    transform: translate3d(0, 100%, 0);
    transition: transform 0.5s cubic-bezier(0.16, 1, 0.3, 1),
                opacity 0.4s ease,
                visibility 0.5s step-end;
}

.mega-projector-modal.active {
    transform: translate3d(0, 0, 0);
    opacity: 1;
    visibility: visible;
    pointer-events: auto;
    transition: transform 0.5s cubic-bezier(0.16, 1, 0.3, 1),
                opacity 0.4s ease,
                visibility 0s;
}

.mega-close-btn {
    position: fixed;
    top: 2rem;
    right: 2.5rem;
    z-index: 500;
}

.mega-projector-scroll-container {
    width: 100vw;
    height: 100vh;
    overflow-y: auto;
    overflow-x: hidden;
    scroll-behavior: smooth;
    background-color: var(--proj-bg, #121713);
    overscroll-behavior: contain;
}

.mega-projector-scroll-container::-webkit-scrollbar {
    width: 6px;
}
.mega-projector-scroll-container::-webkit-scrollbar-track {
    background: rgba(0, 0, 0, 0.3);
}
.mega-projector-scroll-container::-webkit-scrollbar-thumb {
    background: rgba(55, 74, 56, 0.85);
    border-radius: 3px;
}
.mega-projector-scroll-container::-webkit-scrollbar-thumb:hover {
    background: var(--proj-accent, var(--lime-green));
}

/* Master Hero Image */
.mega-master-hero {
    width: 100%;
    height: auto;
    max-height: 85vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: #000000;
    overflow: hidden;
}

.mega-master-hero img {
    width: 100%;
    height: auto;
    max-height: 85vh;
    object-fit: contain;
    display: block;
}

.mega-split-layout {
    display: grid;
    grid-template-columns: 360px minmax(0, 1fr);
    width: 100%;
    min-height: 100vh;
    position: relative;
    background-color: var(--proj-bg, #121713);
    border-top: 1px solid rgba(255, 255, 255, 0.08);
}

/* Left Sidebar */
.mega-left-sidebar {
    background-color: var(--proj-card-bg, #18201a);
    border-right: 1px solid rgba(255, 255, 255, 0.08);
    padding: 3rem 2.2rem 2.2rem 2.2rem;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    height: 100vh;
    position: sticky;
    top: 0;
    overflow: hidden;
    box-sizing: border-box;
    z-index: 40;
}

.sidebar-top-section {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
    overflow: hidden;
    flex: 1;
}

.sidebar-meta-header {
    flex-shrink: 0;
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
    margin-bottom: 1.2rem;
}

.meta-tag {
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.18em;
    color: var(--proj-accent, var(--lime-green));
    font-weight: 600;
}

.meta-title {
    font-size: 1.9rem;
    font-weight: 300;
    color: #ffffff;
    margin: 0.2rem 0 0.4rem 0;
    line-height: 1.2;
}

.sidebar-meta-header .lime-accent-line {
    margin-top: 0.2rem;
    margin-bottom: 0.8rem;
}

.project-facts-block {
    display: flex;
    flex-direction: column;
    flex: 1;
    min-height: 0;
    overflow: hidden;
    margin-top: 0.6rem;
    overscroll-behavior: contain;
}

.facts-heading {
    flex-shrink: 0;
    font-size: 0.82rem;
    text-transform: uppercase;
    letter-spacing: 0.15em;
    color: #ffffff;
    font-weight: 600;
    padding-bottom: 0.6rem;
    margin-bottom: 1.2rem;
    border-bottom: 1px solid rgba(255, 255, 255, 0.12);
}

.facts-list {
    display: flex;
    flex-direction: column;
    gap: 0.9rem;
    flex: 1;
    overflow-y: auto !important;
    overflow-x: hidden;
    padding-right: 0.6rem;
    margin: 0;
}

.facts-list::-webkit-scrollbar {
    width: 4px;
}
.facts-list::-webkit-scrollbar-track {
    background: rgba(0, 0, 0, 0.25);
    border-radius: 2px;
}
.facts-list::-webkit-scrollbar-thumb {
    background: rgba(55, 74, 56, 0.85);
    border-radius: 2px;
}
.facts-list::-webkit-scrollbar-thumb:hover {
    background: var(--proj-accent, var(--lime-green));
}

.fact-item {
    display: flex;
    flex-direction: column;
    gap: 0.2rem;
}

.fact-key {
    font-size: 0.72rem;
    text-transform: uppercase;
    letter-spacing: 0.12em;
    color: var(--text-warm-taupe);
}

.fact-val {
    font-size: 0.92rem;
    color: #ffffff;
    font-weight: 300;
    line-height: 1.4;
}

.portrait-video-wrapper {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
    width: 100%;
    flex-shrink: 0;
    margin-top: 1.5rem;
    padding-top: 1rem;
    border-top: 1px solid rgba(255, 255, 255, 0.08);
}

.portrait-video-box {
    position: relative;
    width: 100%;
    height: 190px;
    border-radius: 12px;
    overflow: hidden;
    background: #000;
    border: 1.5px solid var(--proj-accent, var(--lime-green));
    cursor: pointer;
}

.portrait-video-box video {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.expand-video-btn {
    position: absolute;
    bottom: 0.6rem;
    right: 0.6rem;
    background: rgba(0, 0, 0, 0.6);
    border: 1px solid rgba(255, 255, 255, 0.3);
    color: #fff;
    width: 32px;
    height: 32px;
    border-radius: 6px;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    font-size: 0.85rem;
    transition: background 0.3s ease, transform 0.2s ease;
    z-index: 10;
}

.expand-video-btn:hover {
    background: var(--proj-accent, var(--lime-green));
    color: #000;
    transform: scale(1.1);
}

.portrait-caption {
    font-size: 0.72rem;
    color: var(--text-warm-muted);
    display: flex;
    align-items: center;
    gap: 0.4rem;
}

.mega-left-sidebar.no-video {
    justify-content: flex-start;
}

.mega-left-sidebar.no-video.centered-facts {
    justify-content: center !important;
}

.mega-left-sidebar.no-video.centered-facts .sidebar-meta-header {
    margin-top: auto;
    margin-bottom: 1.5rem;
}

.mega-left-sidebar.no-video.centered-facts .project-facts-block {
    margin-bottom: auto;
    flex: 0 1 auto;
}

.mega-left-sidebar.no-video:not(.centered-facts) .project-facts-block {
    flex: 1;
    margin-bottom: 0;
}

/* Right Content Area */
.mega-right-wrapper {
    display: flex;
    flex-direction: column;
    min-width: 0;
    width: 100%;
    position: relative;
    background-color: var(--proj-bg, #121713);
    overflow: visible;
}

.sticky-chapter-nav {
    position: sticky;
    top: 0;
    left: 0;
    width: 100%;
    background-color: var(--proj-bg, #121713) !important;
    border-bottom: 1px solid rgba(255, 255, 255, 0.12);
    z-index: 85;
    padding: 0 3.5rem;
    opacity: 0;
    transform: translateY(-15px);
    transition: opacity 0.35s ease, transform 0.35s cubic-bezier(0.16, 1, 0.3, 1);
    pointer-events: none;
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.7);
}

.sticky-chapter-nav.visible {
    opacity: 1;
    transform: translateY(0);
    pointer-events: auto;
}

.chapter-nav-inner {
    display: flex;
    gap: 2rem;
    align-items: center;
    overflow-x: auto;
    white-space: nowrap;
    scrollbar-width: none;
    -webkit-overflow-scrolling: touch;
    padding: 0.2rem 0;
}

.chapter-nav-inner::-webkit-scrollbar {
    display: none;
}

.chapter-nav-btn {
    background: transparent;
    border: none;
    padding: 1rem 0;
    font-size: 0.85rem;
    text-transform: uppercase;
    letter-spacing: 0.15em;
    color: var(--text-warm-muted);
    cursor: pointer;
    position: relative;
    flex-shrink: 0;
    transition: color 0.3s ease;
}

.chapter-nav-btn::after {
    content: '';
    position: absolute;
    bottom: -1px;
    left: 0;
    width: 100%;
    height: 2px;
    background: var(--proj-accent, var(--lime-green));
    transform: scaleX(0);
    transform-origin: left;
    transition: transform 0.3s ease;
}

.chapter-nav-btn.active,
.chapter-nav-btn:hover {
    color: var(--proj-accent, var(--lime-green));
}

.chapter-nav-btn.active::after,
.chapter-nav-btn:hover::after {
    transform: scaleX(1);
}

.mega-right-content {
    width: 100%;
    min-width: 0;
    position: relative;
    background-color: var(--proj-bg, #121713);
    padding-bottom: 12rem;
}

.mega-story-container {
    padding: 3rem 3.5rem 4rem 3.5rem;
    display: flex;
    flex-direction: column;
    gap: 4.5rem;
    width: 100%;
    min-width: 0;
    box-sizing: border-box;
}

.mega-main-summary-block {
    max-width: 900px;
    display: flex;
    flex-direction: column;
    gap: 1.2rem;
}

.story-headline {
    font-size: 2.5rem;
    font-weight: 300;
    color: #ffffff;
    line-height: 1.2;
    overflow-wrap: break-word;
}

.story-lead-paragraph {
    font-size: 1.15rem;
    line-height: 1.85;
    color: var(--text-warm-muted);
    font-weight: 300;
    overflow-wrap: break-word;
}

/* Chapters Layout */
.editorial-chapters-list {
    display: flex;
    flex-direction: column;
    gap: 5rem;
    width: 100%;
    min-width: 0;
}

.chapter-row {
    display: grid;
    grid-template-columns: minmax(0, 1.1fr) minmax(0, 1fr);
    gap: 3rem;
    align-items: center;
    width: 100%;
    min-width: 0;
    box-sizing: border-box;
    scroll-margin-top: 90px;
}

.chapter-row.media-left {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1.1fr);
}

.chapter-text-block {
    display: flex;
    flex-direction: column;
    gap: 0.8rem;
    min-width: 0;
    width: 100%;
    opacity: 0;
    transform: translateY(35px);
    transition: opacity 0.7s cubic-bezier(0.25, 1, 0.5, 1), 
                transform 0.7s cubic-bezier(0.25, 1, 0.5, 1);
    will-change: opacity, transform;
    overflow-wrap: break-word;
}

.chapter-row.in-view .chapter-text-block {
    opacity: 1;
    transform: translateY(0);
}

.chapter-badge {
    font-size: 0.75rem;
    letter-spacing: 0.2em;
    text-transform: uppercase;
    color: var(--proj-accent, var(--lime-green));
    font-weight: 600;
}

.chapter-title {
    font-size: 1.8rem;
    font-weight: 300;
    color: #ffffff;
    line-height: 1.3;
    overflow-wrap: break-word;
}

.chapter-body {
    font-size: 1rem;
    line-height: 1.8;
    color: var(--text-warm-muted);
    font-weight: 300;
    overflow-wrap: break-word;
}

.chapter-media-card {
    position: relative;
    border-radius: 14px;
    overflow: hidden;
    background: #000;
    border: 1px solid rgba(255, 255, 255, 0.08);
    box-shadow: 0 16px 40px rgba(0, 0, 0, 0.4);
    height: 320px;
    max-height: 320px;
    width: 100%;
    min-width: 0;
    cursor: pointer;
    will-change: opacity, transform;
}

.chapter-row:not(.media-left) .chapter-media-card {
    opacity: 0;
    transform: translateX(50px);
    transition: opacity 0.8s cubic-bezier(0.16, 1, 0.3, 1) 0.1s, 
                transform 0.8s cubic-bezier(0.16, 1, 0.3, 1) 0.1s;
}

.chapter-row.media-left .chapter-media-card {
    opacity: 0;
    transform: translateX(-50px);
    transition: opacity 0.8s cubic-bezier(0.16, 1, 0.3, 1) 0.1s, 
                transform 0.8s cubic-bezier(0.16, 1, 0.3, 1) 0.1s;
}

.chapter-row.in-view .chapter-media-card {
    opacity: 1;
    transform: translateX(0);
}

.chapter-media-card img,
.chapter-media-card video {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
}

.media-caption-overlay {
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    padding: 0.8rem 1.2rem;
    background: rgba(0, 0, 0, 0.8);
    backdrop-filter: blur(8px);
    font-size: 0.75rem;
    color: var(--text-warm-muted);
}

.chapter-media-card .expand-media-btn,
.seq-frame .expand-media-btn {
    position: absolute;
    top: 0.8rem;
    right: 0.8rem;
    width: 32px;
    height: 32px;
    background: rgba(0, 0, 0, 0.65);
    border: 1px solid rgba(255, 255, 255, 0.25);
    color: #ffffff;
    border-radius: 6px;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    font-size: 0.85rem;
    opacity: 0;
    transition: opacity 0.25s ease, background 0.25s ease, color 0.25s ease, transform 0.2s ease;
    z-index: 20;
}

.chapter-media-card:hover .expand-media-btn,
.seq-frame:hover .expand-media-btn {
    opacity: 1;
}

.expand-media-btn:hover {
    background: var(--proj-accent, var(--lime-green));
    color: #000000;
    transform: scale(1.1);
}

/* Clamped Bottom Sequence Strip */
.project-sequence-strip {
    position: fixed;
    bottom: 0;
    right: 0;
    left: 360px;
    height: 150px;
    background-color: var(--proj-bg, #121713);
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    z-index: 90;
    display: flex;
    flex-direction: column;
    justify-content: center;
    overflow: hidden;
    padding: 0.4rem 0 0.8rem 0;
    box-shadow: 0 -10px 25px rgba(0, 0, 0, 0.6);
    opacity: 0;
    transform: translateY(100%);
    pointer-events: none;
    transition: opacity 0.4s ease, transform 0.4s cubic-bezier(0.16, 1, 0.3, 1);
}

.project-sequence-strip.visible {
    opacity: 1;
    transform: translateY(0);
    pointer-events: auto;
}

.seq-nav-btn {
    position: absolute;
    top: 45%;
    transform: translateY(-50%);
    width: 48px;
    height: 70%;
    background: rgba(18, 23, 19, 0.85);
    backdrop-filter: blur(6px);
    border: 1px solid rgba(255, 255, 255, 0.15);
    color: #ffffff;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    z-index: 80;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.3s ease, background-color 0.3s ease, color 0.3s ease;
}

.seq-nav-btn.seq-prev {
    left: 0;
    border-top-right-radius: 8px;
    border-bottom-right-radius: 8px;
}

.seq-nav-btn.seq-next {
    right: 0;
    border-top-left-radius: 8px;
    border-bottom-left-radius: 8px;
}

.project-sequence-strip:hover .seq-nav-btn,
.project-sequence-strip.touch-active .seq-nav-btn {
    opacity: 1;
    pointer-events: auto;
}

.seq-nav-btn:hover {
    background-color: var(--proj-accent, var(--lime-green));
    color: #000000;
}

.seq-scroll-track {
    width: 100%;
    height: 110px;
    display: flex;
    gap: 1rem;
    overflow-x: scroll !important;
    overflow-y: hidden;
    padding: 0 1.5rem;
    align-items: center;
    -webkit-overflow-scrolling: touch;
    scrollbar-width: none;
    -ms-overflow-style: none;
}

.seq-scroll-track::-webkit-scrollbar {
    display: none !important;
}

.seq-frame {
    position: relative;
    width: 195px;
    height: 100px;
    flex-shrink: 0;
    border-radius: 8px;
    overflow: hidden;
    border: 1.5px solid rgba(255, 255, 255, 0.1);
    background: #000;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.3);
    transition: transform 0.25s ease, border-color 0.25s ease;
    cursor: pointer;
}

.seq-frame:hover {
    transform: scale(1.05);
    border-color: var(--proj-accent, var(--lime-green));
}

.seq-frame img,
.seq-frame video {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
}

.seq-custom-scrollbar {
    width: 100%;
    padding: 0.3rem 1.5rem 0 1.5rem;
    display: flex;
    align-items: center;
    cursor: pointer;
}

.seq-scrollbar-track {
    position: relative;
    width: 100%;
    height: 4px;
    background: rgba(26, 38, 27, 0.85);
    border-radius: 2px;
}

.seq-scrollbar-thumb {
    position: absolute;
    top: 0;
    left: 0;
    height: 100%;
    width: 20%;
    background: rgba(55, 74, 56, 0.9);
    border-radius: 2px;
    transition: background-color 0.25s ease, box-shadow 0.25s ease, height 0.2s ease, top 0.2s ease;
    cursor: grab;
}

.project-sequence-strip:hover .seq-scrollbar-thumb,
.seq-custom-scrollbar:hover .seq-scrollbar-thumb,
.seq-scrollbar-thumb:hover {
    background: var(--proj-accent, var(--lime-green)) !important;
    box-shadow: 0 0 10px var(--lime-neon-glow);
    height: 6px;
    top: -1px;
}

/* ==========================================================================
   EXPANDED ZOOMED MEDIA LIGHTBOX
   ========================================================================== */
.media-expand-backdrop {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    background: rgba(0, 0, 0, 0.95);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    z-index: 600;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.35s ease;
}

.media-expand-backdrop.active {
    opacity: 1;
    pointer-events: auto;
}

.media-expand-modal {
    position: fixed;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%) scale(0.96);
    width: 90vw;
    max-width: 1200px;
    height: auto;
    max-height: 90vh;
    z-index: 650;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    opacity: 0;
    visibility: hidden;
    pointer-events: none;
    transition: transform 0.4s cubic-bezier(0.16, 1, 0.3, 1),
                opacity 0.35s ease,
                visibility 0.4s step-end;
    box-shadow: none !important;
    border: none !important;
}

.media-expand-modal.active {
    transform: translate(-50%, -50%) scale(1);
    opacity: 1;
    visibility: visible;
    pointer-events: auto;
    transition: transform 0.4s cubic-bezier(0.16, 1, 0.3, 1),
                opacity 0.35s ease,
                visibility 0s;
}

.media-expand-close {
    position: absolute;
    top: -3.5rem;
    right: 0;
    z-index: 660;
}

.media-expand-container {
    position: relative;
    width: 100%;
    height: 75vh;
    max-height: 80vh;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 12px;
    overflow: hidden;
    background: #000000;
    border: 1px solid rgba(255, 255, 255, 0.15);
    box-shadow: 0 25px 60px rgba(0, 0, 0, 0.9) !important;
}

.media-expand-container img,
.media-expand-container video {
    width: 100% !important;
    height: 100% !important;
    max-width: 100% !important;
    max-height: 75vh !important;
    object-fit: contain !important;
    display: block !important;
    background: #000000;
}

.media-expand-caption {
    margin-top: 1rem;
    font-size: 0.9rem;
    color: var(--text-warm-muted);
    text-align: center;
    max-width: 750px;
    font-weight: 300;
}

/* --- PAGINATION CONTROLS --- */
.pagination-container {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 1.8rem;
    margin-top: 2rem;
    padding-top: 2rem;
    border-top: 1px solid rgba(55, 74, 56, 0.2);
    width: 100%;
}

.page-nav-btn {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    text-decoration: none;
    color: var(--fern-dark-green);
    font-size: 0.9rem;
    text-transform: uppercase;
    letter-spacing: 0.12em;
    font-weight: 600;
    transition: color 0.3s ease, transform 0.3s ease;
}

.page-nav-btn:hover {
    color: var(--lime-green);
    transform: translateX(3px);
}

.page-numbers {
    display: flex;
    gap: 0.75rem;
    align-items: center;
}

.page-num {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    border-radius: 50%;
    border: 1px solid rgba(55, 74, 56, 0.3);
    color: var(--fern-dark-green);
    text-decoration: none;
    font-size: 0.95rem;
    font-weight: 500;
    transition: all 0.3s ease;
}

.page-num.active,
.page-num:hover {
    background-color: var(--lime-green);
    border-color: var(--lime-green);
    color: var(--fern-dark-green);
    box-shadow: 0 0 10px var(--lime-neon-glow);
}

/* --- DYNAMIC CROSS-DISCIPLINARY FOOTNOTES --- */
.related-project-footnotes {
    display: flex;
    flex-direction: column;
    gap: 1.8rem;
    padding-top: 3.5rem;
    margin-top: 2rem;
    border-top: 1px solid rgba(255, 255, 255, 0.12);
    width: 100%;
}

.footnote-kicker {
    font-size: 0.75rem;
    letter-spacing: 0.2em;
    text-transform: uppercase;
    color: var(--proj-accent, var(--lime-green));
    font-weight: 600;
}

.footnote-title {
    font-size: 1.9rem;
    font-weight: 300;
    color: #ffffff;
    margin-top: 0.3rem;
}

.related-footnotes-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 1.8rem;
    width: 100%;
}

.related-footnote-card {
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid rgba(255, 255, 255, 0.08);
    border-radius: 12px;
    padding: 1.8rem;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    gap: 1.2rem;
    cursor: pointer;
    transition: transform 0.35s cubic-bezier(0.25, 1, 0.5, 1), 
                border-color 0.35s ease, 
                background-color 0.35s ease,
                box-shadow 0.35s ease;
}

.related-footnote-card:hover {
    transform: translateY(-4px);
    border-color: var(--proj-accent, var(--lime-green));
    background: rgba(255, 255, 255, 0.06);
    box-shadow: 0 12px 30px rgba(0, 0, 0, 0.4);
}

.footnote-cat-badge {
    font-size: 0.72rem;
    text-transform: uppercase;
    letter-spacing: 0.15em;
    color: var(--proj-accent, var(--lime-green));
    font-weight: 600;
    margin-bottom: 0.4rem;
    display: inline-block;
}

.footnote-proj-name {
    font-size: 1.35rem;
    font-weight: 400;
    color: #ffffff;
    margin-bottom: 0.5rem;
}

.footnote-scope-snippet {
    font-size: 0.88rem;
    line-height: 1.6;
    color: var(--text-warm-muted);
    font-weight: 300;
}

.footnote-action {
    display: flex;
    align-items: center;
    padding-top: 0.8rem;
    border-top: 1px solid rgba(255, 255, 255, 0.06);
}

.view-scope-link {
    font-size: 0.82rem;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--proj-accent, var(--lime-green));
    font-weight: 500;
    display: flex;
    align-items: center;
    gap: 0.4rem;
    transition: transform 0.25s ease;
}

.related-footnote-card:hover .view-scope-link {
    transform: translateX(4px);
}

/* --- THUMBNAIL-ONLY CARD STYLING (NO MODAL TRIGGERS) --- */
.project-tile.thumbnail-only-card,
.project-tile.thumbnail-only-card .project-image-bay {
    cursor: default !important;
}

.project-tile.thumbnail-only-card .project-name::after {
    display: none !important; /* Disables green underline on hover */
}

.project-tile.thumbnail-only-card .center-ripple-overlay {
    display: none !important; /* Disables circular ripple animation */
}

.project-tile.thumbnail-only-card:hover .project-image-bay img {
    transform: none !important;
    filter: brightness(1) !important;
}

/* --- RESPONSIVE BREAKPOINTS --- */
@media (max-width: 1200px) {
    .projects-grid-container {
        gap: 2.5rem 1.4rem;
    }
    .project-tile {
        flex: 0 1 calc(50% - 0.7rem);
        max-width: calc(50% - 0.7rem);
    }
    .projects-hero-title { font-size: 2.8rem; }
    .projects-grid-section { padding: 3rem 2.5rem 5rem 2.5rem; }
    
    .mega-split-layout { 
        grid-template-columns: 1fr !important; 
    }
    
    .mega-left-sidebar { 
        display: none !important; 
    }

    .sticky-chapter-nav { 
        padding: 0 4.5rem 0 1.2rem;
    }

    .mega-story-container { 
        padding: 2.5rem 1.5rem 3rem 1.5rem; 
    }

    .chapter-row, .chapter-row.media-left { 
        grid-template-columns: 1fr; 
        gap: 2rem; 
    }

    .project-sequence-strip { 
        left: 0 !important; 
        height: 135px; 
    }

    .seq-frame { 
        width: 155px; 
        height: 90px; 
    }
}

@media (max-width: 600px) {
    .projects-grid-section { padding: 2.5rem 1.2rem 5rem 1.2rem; }
    .projects-grid-container { 
        gap: 2rem; 
    }
    .project-tile {
        flex: 0 1 100%;
        max-width: 100%;
    }
    .project-image-bay { height: 260px; }
    .project-name { font-size: 1.2rem; line-height: 1.35; }
    .filter-bar { gap: 1.2rem 0.9rem; }
    .filter-link { font-size: 0.76rem; }
    
    .pagination-container {
        gap: 0.5rem;
        padding-top: 1.5rem;
        margin-top: 1.5rem;
        width: 100%;
        justify-content: center;
        flex-wrap: nowrap;
    }
    .page-nav-btn { font-size: 0.75rem; letter-spacing: 0.05em; gap: 0.25rem; }
    .page-numbers { gap: 0.35rem; }
    .page-num { width: 32px; height: 32px; font-size: 0.82rem; }
}