.hamburger-btn { touch-action: manipulation; }

.container        { width: 100%; max-width: var(--max-w); margin: 0 auto; padding: 0 var(--space-8); }

.container-narrow { width: 100%; max-width: var(--max-w-narrow); margin: 0 auto; padding: 0 var(--space-8); }

.main-header {
    position: fixed; top: 0; left: 0; right: 0; z-index: 1000; padding: 0;
    transition: background var(--dur-med) var(--ease-out), box-shadow var(--dur-med) var(--ease-out);
}

.main-header.scrolled {
    background: rgba(245,247,250,0.93);
    backdrop-filter: blur(20px) saturate(180%);
    -webkit-backdrop-filter: blur(20px) saturate(180%);
    box-shadow: 0 1px 0 rgba(16,21,28,0.07);
}

.nav-inner {
    display: flex; align-items: center; justify-content: space-between;
    width: 100%;
    max-width: var(--max-w); margin: 0 auto;
    padding: var(--space-5) var(--space-8); gap: var(--space-6);
}

.nav-logo { display: flex; align-items: center; gap: var(--space-3); flex-shrink: 0; }

.logo-mark {
    width: 34px; height: 34px; border-radius: 50%;
    display: flex; align-items: center; justify-content: center;
    overflow: hidden; background: transparent;
}

.logo-mark img { width: 100%; height: 100%; object-fit: cover; }

.brand-wordmark {
    font-family: var(--serif);
    font-size: 1.2rem;
    font-weight: 400;
    letter-spacing: -0.025em;
    color: var(--ink);
}

.desktop-nav { position: relative; display: flex; align-items: center; gap: var(--space-1); }

.nav-link {
    position: relative;
    z-index: 1;
    display: inline-block;
    font-size: 0.8125rem; font-weight: 400; letter-spacing: 0.04em;
    color: var(--ink-muted); padding: var(--space-2) var(--space-3);
    border-radius: var(--radius); transition: color var(--dur-fast) var(--ease-out);
}

.nav-link:hover, .nav-link.active { color: var(--ink); }

.nav-actions { display: flex; align-items: center; gap: var(--space-3); }

.nav-cta {
    display: inline-flex; align-items: center; justify-content: center;
    font-family: var(--sans); font-size: 0.8125rem; font-weight: 500;
    line-height: 1; letter-spacing: 0.01em;
    color: var(--white); background: var(--ink);
    padding: 10px 20px; border-radius: var(--radius-pill);
    border: 1.5px solid var(--ink);
    box-shadow: none;
    transition: background-color var(--dur-med) var(--ease-out), border-color var(--dur-med) var(--ease-out), color var(--dur-med) var(--ease-out), box-shadow var(--dur-med) var(--ease-out), opacity var(--dur-med) var(--ease-out), transform var(--dur-med) var(--ease-out);
    white-space: nowrap;
    box-sizing: border-box;
    gap: 8px;
}

.main-header--home:not(.scrolled) .nav-cta {
    opacity: 0;
    pointer-events: none;
    transform: translateY(-5px);
}

.main-header--home.scrolled .nav-cta {
    opacity: 1;
    pointer-events: auto;
    transform: translateY(0);
}

@media (hover: hover) and (pointer: fine) {
    .nav-cta:hover {
        background: var(--accent); border-color: var(--accent);
        box-shadow: var(--shadow-md);
        transform: translateY(-2px);
    }
}

.nav-cta svg.lucide {
    width: 15px !important; height: 15px !important; margin-left: 0 !important; stroke-width: 1.75; transform: none;
}

.nav-cta-ghost {
    display: inline-flex; align-items: center; justify-content: center;
    font-size: 0.8125rem; font-weight: 500; letter-spacing: 0.02em;
    color: var(--ink); background: transparent; border: 1.5px solid var(--surface-3);
    padding: 8px var(--space-5); border-radius: var(--radius-pill);
    transition: background var(--dur-fast), color var(--dur-fast), border-color var(--dur-fast), transform var(--dur-fast);
    white-space: nowrap;
}

.nav-cta-ghost:hover {
    background: var(--ink); color: var(--white); border-color: var(--ink);
    transform: none;
}

.hamburger-btn {
    display: none; flex-direction: column; gap: 6px;
    width: 44px; height: 44px; min-width: 44px; min-height: 44px;
    justify-content: center; align-items: center;
    padding: 0; background: transparent !important;
    border: none !important; outline: none; cursor: pointer;
    -webkit-appearance: none;
    appearance: none;
}

.hamburger-btn span {
    width: 24px !important; display: block !important; height: 2px !important;
    background: var(--ink); border-radius: 2px; flex-shrink: 0;
    transition: transform 300ms var(--ease-out), opacity var(--dur-fast) var(--ease-out); transform-origin: center;
}

.hamburger-btn.is-active span:nth-child(1) { transform: translateY(4px) rotate(45deg); }

.hamburger-btn.is-active span:nth-child(2) { transform: translateY(-4px) rotate(-45deg); }

.hamburger-btn.is-active span { background: var(--white); }

.mobile-menu {
    position: fixed; inset: 0; 
    background: var(--ink);
    z-index: 999;
    display: flex; flex-direction: column; align-items: flex-start; text-align: left;
    height: 100dvh; padding: 80px var(--space-5) var(--space-6);
    opacity: 0; pointer-events: none; transform: translateY(-10px);
    transition: opacity var(--dur-med) var(--ease-out), transform var(--dur-med) var(--ease-out);
    overflow-y: auto; -webkit-overflow-scrolling: touch;
}

.mobile-menu.is-active {
    opacity: 1; pointer-events: auto; transform: translateY(0);
    transition: opacity var(--dur-med) var(--ease-out), transform var(--dur-med) var(--ease-out);
}

.mobile-nav-links { 
    display: flex; flex-direction: column; align-items: flex-start; margin-top: var(--space-8); flex: 1; width: 100%;
    justify-content: flex-start; gap: var(--space-3);
}

.mobile-link {
    font-family: var(--serif); font-size: clamp(1.75rem, 8vw, 2.25rem); 
    color: rgba(255,255,255,0.6); padding: var(--space-1) 0; 
    border-bottom: none;
    display: flex; align-items: center; min-height: 44px; 
    line-height: 1.1; width: 100%;
    opacity: 0; transform: translateY(18px);
    will-change: transform, opacity;
    transition: color var(--dur-fast), transform var(--dur-fast), opacity 380ms ease;
}

.mobile-menu.is-active .mobile-link {
    opacity: 1; transform: translateY(0);
}

.mobile-menu.is-active .mobile-link:nth-child(1) { transition-delay: 0ms, 70ms, 70ms; }
.mobile-menu.is-active .mobile-link:nth-child(2) { transition-delay: 0ms, 120ms, 120ms; }
.mobile-menu.is-active .mobile-link:nth-child(3) { transition-delay: 0ms, 170ms, 170ms; }
.mobile-menu.is-active .mobile-link:nth-child(4) { transition-delay: 0ms, 220ms, 220ms; }
.mobile-menu.is-active .mobile-link:nth-child(5) { transition-delay: 0ms, 270ms, 270ms; }
.mobile-menu.is-active .mobile-link:nth-child(6) { transition-delay: 0ms, 320ms, 320ms; }

.mobile-link:hover, .mobile-link.active { color: var(--white); }

.mobile-cta {
    font-family: var(--serif); font-size: clamp(1.75rem, 7vw, 2rem);
    color: var(--white) !important; border-color: transparent !important; background: transparent !important;
    border-bottom: none; margin-top: var(--space-4);
    display: inline-flex; align-items: center; justify-content: flex-start;
    opacity: 0; transform: translateY(18px);
    will-change: transform, opacity;
    transition: color var(--dur-fast), opacity 380ms ease, transform 380ms ease;
    transition-delay: 0ms, 370ms, 370ms;
}

.mobile-menu.is-active .mobile-cta {
    opacity: 1; transform: translateY(0);
}

.mobile-cta:hover { color: rgba(255, 255, 255, 0.7) !important; }

.mobile-menu .nav-cta-ghost, .mobile-menu .hire-btn {
    color: var(--white) !important; border-color: transparent !important; background: transparent !important;
}

.mobile-menu-footer {
    margin-top: auto;
    padding-top: var(--space-8);
    display: flex; justify-content: flex-start; gap: var(--space-4) var(--space-6); flex-wrap: wrap;
    width: 100%;
}

.mobile-menu-footer a {
    position: relative;
    display: inline-block;
    font-family: var(--sans); font-size: 0.75rem; font-weight: 600; letter-spacing: 0.04em;
    text-transform: uppercase; color: rgba(255,255,255,0.55);
    transition: color var(--dur-fast);
}

.mobile-menu-footer a::before {
    content: '';
    position: absolute;
    top: 50%; left: 0; right: 0;
    height: 44px;
    transform: translateY(-50%);
}

.mobile-menu-footer a:hover { color: var(--white); }

section[id] { scroll-margin-top: calc(var(--nav-h) + 16px); }

.main-header { height: var(--nav-h); display: flex; align-items: center; }

.site-footer { position: relative; z-index: 2;
    background: var(--ink); padding: var(--space-16) 0 var(--space-12); color: var(--white); }

.footer-grid {
    display: grid; grid-template-columns: repeat(3, 1fr);
    gap: var(--space-8); margin-bottom: var(--space-12);
}

.footer-col { display: flex; flex-direction: column; gap: var(--space-3); }

.footer-col .footer-title {
    font-family: var(--mono);
    font-size: 0.8125rem; font-weight: 600; letter-spacing: 0.06em;
    text-transform: uppercase; color: var(--white); margin-bottom: var(--space-3);
}

.footer-col a { font-size: 0.8125rem; color: rgba(255,255,255,0.6); transition: color var(--dur-fast); }

.footer-col a:hover { color: var(--white); }

.footer-bottom-container { display: flex; flex-direction: column; align-items: stretch; }

.footer-divider { width: 100%; height: 1px; background: rgba(255,255,255,0.09); margin-bottom: var(--space-8); }

.footer-bottom-bar {
    display: flex; align-items: center; justify-content: space-between;
    width: 100%; position: relative; min-height: 40px;
}

.footer-copyright {
    font-size: 0.875rem; color: rgba(255,255,255,0.55); margin: 0;
    display: block;
}

.footer-brand-name {
    font-family: var(--sans); font-size: 0.875rem; font-weight: 500;
    color: var(--white); margin-right: 6px; letter-spacing: 0.03em;
}

.footer-social-row { display: flex; align-items: center; gap: var(--space-4); }

.footer-social-link {
    display: inline-flex; align-items: center; justify-content: center;
    width: 44px; height: 44px; border-radius: 50%;
    color: rgba(255,255,255,0.45); border: 1px solid rgba(255,255,255,0.12);
    transition: background-color var(--dur-fast), border-color var(--dur-fast), color var(--dur-fast);
}

.footer-social-link:hover { color: var(--white); border-color: rgba(255,255,255,0.35); background: rgba(255,255,255,0.06); }

.floating-btt {
    position: fixed;
    bottom: var(--space-8);
    right: var(--space-8);
    z-index: 900;
    width: 44px;
    height: 44px;
    border-radius: 50%;
    background: var(--ink);
    color: var(--white);
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    pointer-events: none;
    transform: translateY(12px);
    transition: background-color var(--dur-med) var(--ease-out), transform var(--dur-med) var(--ease-out), box-shadow var(--dur-med) var(--ease-out), opacity var(--dur-med) var(--ease-out);
    box-shadow: var(--shadow-md);
    border: none;
    cursor: pointer;
}

.floating-btt.is-visible {
    opacity: 1;
    pointer-events: auto;
    transform: translateY(0);
}

@media (hover: hover) and (pointer: fine) {
    .floating-btt:hover {
        background: var(--accent);
        transform: translateY(-3px);
        box-shadow: var(--shadow-lg);
    }
}

@media (max-width: 640px) {
    .floating-btt {
        bottom: calc(var(--space-5) + env(safe-area-inset-bottom, 0px));
        right: var(--space-5);
    }
}

.back-to-top {
    font-family: var(--sans);
    font-size: 0.8125rem;
    color: var(--ink-muted);
    text-decoration: none;
    display: inline-flex;
    align-items: center;
    transition: color var(--dur-fast, 0.2s);
    background: transparent;
    border: none;
    cursor: pointer;
}

.back-to-top:hover {
    color: var(--ink);
    background: transparent;
    border-color: transparent;
}

@media (max-width: 860px) {
    .desktop-only-arrows { display: none !important; }
    .mobile-carousel-grid {
        display: flex !important; flex-wrap: nowrap !important;
        overflow-x: auto !important; scroll-snap-type: x mandatory;
        gap: var(--space-4) !important; padding-bottom: var(--space-4) !important;
        scrollbar-width: none; -ms-overflow-style: none;
    }
    .mobile-carousel-grid::-webkit-scrollbar { display: none; }
    .mobile-carousel-grid > article {
        flex: 0 0 92% !important; scroll-snap-align: center; max-width: 92vw;
    }
    .viz-swipe-hint {
        display: flex !important;
    }
}

.site-footer a:focus-visible, .mobile-menu a:focus-visible, .mobile-menu button:focus-visible { 
    outline-color: var(--white); 
}

@media (max-width: 860px) {
    #global-reach { display: none !important; }
    :root { --space-24: 4.5rem; --space-20: 3.5rem; } 
    .desktop-nav, .nav-cta, .nav-cta-ghost { display: none; }
    .hamburger-btn { display: flex; }

    .mobile-optimize-header {
        display: flex !important;
        flex-direction: column;
        align-items: stretch;
        gap: var(--space-4);
    }
    .mobile-optimize-header .header-text-block { padding-right: 0; }
    .mobile-optimize-header .projects-controls-right {
        display: flex;
        width: 100%;
        padding-bottom: 0;
    }

.about-left { grid-template-columns: 1fr; gap: 0; }
.about-image-frame { aspect-ratio: 4/3; }
.insights-search-box { width: 100%; min-width: unset; }

    .footer-bottom-bar { flex-direction: column; align-items: center; text-align: center; gap: var(--space-5); }
    .footer-copyright { justify-content: center; }
}

@media print {
    .main-header, .scroll-progress-bar { display: none; }
    body { background: white; color: black; }
}

.desktop-only { display: inline; }

.mobile-only { display: none; }

@media (max-width: 640px) {
    .desktop-only { display: none; }
    .mobile-only { display: inline; }
    .exp-item { grid-template-columns: 1fr; gap: 4px; }
    .exp-item::before { display: none; }
    .exp-item .exp-period { padding-top: 0; font-size: 0.75rem; color: var(--accent); margin-bottom: 2px; white-space: nowrap; }
    .exp-item .exp-detail strong { font-size: 0.8125rem; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
    .exp-item .exp-detail span, .exp-item .exp-detail .exp-org-link { font-size: 0.75rem; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
    @media (max-width: 400px) {
        .exp-item { gap: 2px; }
    }
}

.footer-col a[href$=".pdf"]::after {
    content: ' ↗';
    font-size: 0.6em;
    opacity: 0.45;
}

.site-wrapper {
    max-width: var(--max-w);
    margin: 0 auto;
    padding-top: calc(var(--nav-h, 80px) + var(--space-8, 32px));
    padding-right: var(--space-8, 32px);
    padding-bottom: var(--space-24, 96px);
    padding-left: var(--space-8, 32px);
}

.controls-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-top: 0;
    margin-bottom: var(--space-8, 32px);
    padding-bottom: var(--space-5, 20px);
    border-bottom: 1px solid var(--surface-3, #e5e5e5);
}

.layout-grid {
    display: flex;

    align-items: stretch;
    gap: var(--space-12, 48px);
    position: relative;
}

.media-col {
    flex: 1;
    min-width: 0;
    display: flex;
    flex-direction: column;
    gap: var(--space-6, 24px);
}

.media-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--space-6, 24px);
    width: 100%;
    align-items: start;
}

.media-item {
    background: var(--surface-2);
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: var(--radius);
    width: 100%;
}

.media-item.full-width {
    grid-column: 1 / -1;
}

.media-item img {
    width: 100%;
    height: auto;
    display: block;
    object-fit: cover;
    border-radius: var(--radius);
    pointer-events: none !important;
    -webkit-user-drag: none !important;
    user-select: none !important;
}

.sidebar-wrap {
    width: clamp(340px, 42vw, 520px);
    flex-shrink: 0;
    overflow: clip;
    position: relative;
    transition: transform 0.4s cubic-bezier(0.16, 1, 0.3, 1);
}

.sidebar-wrap.is-collapsed {
    transform: translateX(-100%);
    position: absolute;
    pointer-events: none;
}

.text-col-inner {

    position: sticky;
    top: calc(var(--nav-h, 80px) + var(--space-6, 24px));
    height: max-content;
    max-height: calc(100vh - var(--nav-h, 80px) - var(--space-8, 32px));

    width: clamp(340px, 42vw, 520px);
    padding-right: var(--space-4, 16px);
    opacity: 1;
    overflow-y: auto;
    scrollbar-width: none;
    transition: opacity 0.3s ease;
}

.text-col-inner::-webkit-scrollbar {
    display: none;
}

.sidebar-wrap.is-collapsed .text-col-inner {
    opacity: 0;
    pointer-events: none;
}

@media (max-width: 1024px) {

    .controls-row .btn-wrapper { display: none !important; }

    .layout-grid { display: block; }
    .media-grid { grid-template-columns: repeat(2, 1fr); }

    .btn-wrapper-mobile {
        display: flex !important;
        position: fixed;
        bottom: 32px;
        left: 50%;
        transform: translateX(-50%);
        z-index: 120 !important;
        transition: opacity 0.3s ease, transform 0.3s ease;
    }

    .btn-wrapper-mobile .about-btn {
        box-shadow: 0 4px 16px rgba(0,0,0,0.15);
    }

    .sidebar-wrap {
        position: fixed !important;
        top: 0 !important;
        left: 0 !important;
        right: 0 !important;
        bottom: 0 !important;
        height: 100vh !important;
        height: 100dvh !important;
        margin: 0 !important;
        background-color: var(--surface-2, #ffffff) !important;
        z-index: 9998 !important;
        transform: translateY(100%);
        transition: transform 0.4s cubic-bezier(0.16, 1, 0.3, 1);
        pointer-events: none;
        max-width: none !important;
    }

.sidebar-wrap.is-open-mobile {
        transform: translateY(0);
        pointer-events: auto;
        overscroll-behavior: none !important;
        touch-action: pan-y;
    }

    .text-col-inner {
        position: static !important;
        width: 100% !important;
        height: 100vh !important;
        height: 100dvh !important;
        max-height: none !important;
        padding: calc(var(--nav-h, 72px) + 24px) 24px calc(80px + env(safe-area-inset-bottom, 40px)) 24px !important;
        overflow-y: auto !important;
        overscroll-behavior: none !important;
        -webkit-overflow-scrolling: touch !important;
    }

    #mobileFloatBtn {
        z-index: 9999 !important;
        position: relative !important;
    }
}

@media (max-width: 640px) {
    .media-grid {
        grid-template-columns: 1fr;
    }
}

@media (min-width: 1025px) {
    .btn-wrapper-mobile {
        display: none !important;
    }

    .controls-row .btn-wrapper {
        position: fixed;
        bottom: var(--space-8, 32px);
        left: 50%;
        transform: translate(-50%, 0);
        z-index: 120;
        transition: opacity 0.3s ease, transform 0.3s ease;
    }

    .controls-row .btn-wrapper .about-btn {
        box-shadow: 0 4px 16px rgba(0,0,0,0.15);
    }
}

.cookie-banner {
    position: fixed;
    bottom: var(--space-6);
    left: var(--space-6);
    max-width: 380px;
    background: var(--white);
    border: 1px solid var(--surface-3);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-xl);
    padding: var(--space-5);
    z-index: 9999;
    font-family: var(--sans);
}

.cookie-content p {
    font-size: 0.8125rem;
    color: var(--ink-muted);
    line-height: 1.6;
    margin-bottom: var(--space-4);
}

.cookie-content a {
    color: var(--ink);
    text-decoration: underline;
    text-decoration-color: var(--surface-3);
    text-underline-offset: 3px;
    transition: color var(--dur-fast), text-decoration-color var(--dur-fast);
    font-weight: 500;
}

.cookie-content a:hover {
    color: var(--accent);
    text-decoration-color: var(--accent);
}

.cookie-actions {
    display: flex;
    gap: var(--space-3);
}

@media (max-width: 640px) {
    .cookie-banner {
        bottom: var(--space-4);
        left: var(--space-4);
        right: calc(var(--space-4) + 60px);
        max-width: none;
    }
}

.expand-action-wrapper {
    text-align: center;
    margin-top: var(--space-8);
    width: 100%;
    display: flex;
    justify-content: center;
    gap: 12px;
    pointer-events: none;
    overflow-anchor: none;
}

.expand-action-wrapper button {
    pointer-events: auto;
    overflow-anchor: none;
}

.floating-action-wrapper {
    position: fixed !important;
    bottom: calc(var(--space-8) + 60px);
    left: 0;
    width: 100%;
    z-index: 900;
    padding-top: var(--space-4);
    pointer-events: none;
    opacity: 0;
    transform: translateY(10px);
    transition: opacity var(--dur-med) var(--ease-out), transform var(--dur-med) var(--ease-out);
}

.floating-action-wrapper.is-visible {
    opacity: 1;
    transform: translateY(0);
}

.floating-action-wrapper.is-docked {
    position: absolute !important;
    bottom: 24px;
}

.floating-action-wrapper button {
    box-shadow: 0 8px 24px rgba(10, 15, 23, 0.12) !important;
    pointer-events: auto;
    background: var(--white) !important;
    border-color: var(--surface-3) !important;
}

@media (prefers-reduced-motion: reduce) {
    .floating-action-wrapper {
        transition: none;
    }
}

@media (max-width: 640px) {
    .floating-action-wrapper {
        position: fixed !important;
        bottom: var(--space-4);
        padding-top: 0;
    }
    .floating-action-wrapper.is-docked {
        position: absolute !important;
        bottom: var(--space-4);
    }
    .scroll-progress-bar {
        display: none !important;
    }
}

body.project-modal-open .main-header {
    opacity: 1 !important;
    visibility: visible !important;
    background: rgba(245,247,250,0.93) !important;
    backdrop-filter: blur(20px) saturate(180%) !important;
    -webkit-backdrop-filter: blur(20px) saturate(180%) !important;
    box-shadow: 0 1px 0 rgba(16,21,28,0.07) !important;
}

body.project-modal-open .main-header .brand-wordmark {
    color: var(--ink) !important;
}

body.modal-open:not(.project-modal-open) .main-header {
    background: transparent !important;
    backdrop-filter: none !important;
    -webkit-backdrop-filter: none !important;
    box-shadow: none !important;
}

body.modal-open:not(.project-modal-open) .main-header .brand-wordmark {
    color: var(--white) !important;
}