/* ============================================================
   DIGITALSTREETZ — PORTFOLIO PAGE + CASE STUDY
   portfolio.css
   ============================================================ */

/* ============================================================
   PORTFOLIO PAGE
   ============================================================ */

/* Hero */
.portfolio-page-hero {
    min-height: 100vh;
    background: var(--black);
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    overflow: hidden;
    position: relative;
}

/* Full-bleed background image */
.portfolio-hero-bg {
    position: absolute;
    inset: 0;
    z-index: 0;
}

.portfolio-hero-bg img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    object-position: center;
    opacity: 0.55;
    transition: transform 0.12s linear;
    will-change: transform;
}

/* Gradient overlay: heavy at bottom (text), fades to top */
.portfolio-hero-overlay {
    position: absolute;
    inset: 0;
    z-index: 1;
    background:
        linear-gradient(to top,  rgba(8,8,8,0.98) 0%,  rgba(8,8,8,0.65) 35%, rgba(8,8,8,0.2)  70%, rgba(8,8,8,0.05) 100%),
        linear-gradient(to right, rgba(8,8,8,0.5)  0%, transparent 60%);
}

/* Accent vertical line — left edge marker, above the image overlay */
.portfolio-page-hero::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 3px;
    height: 100%;
    background: var(--accent);
    z-index: 3;
}

/* Top area — eyebrow + project count */
.portfolio-hero-top {
    position: relative;
    z-index: 3;
    padding: 140px var(--gutter) 0;
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
}

.portfolio-hero-top .eyebrow {
    color: var(--accent);
    letter-spacing: var(--tracking-widest);
}

.portfolio-hero-project-count {
    font-family: var(--font-display);
    font-size: var(--text-xs);
    font-weight: 600;
    letter-spacing: var(--tracking-widest);
    text-transform: uppercase;
    color: rgba(255,255,255,0.25);
    display: flex;
    align-items: center;
    gap: var(--space-3);
}

.portfolio-hero-project-count strong {
    font-size: var(--text-2xl);
    color: rgba(255,255,255,0.12);
    letter-spacing: var(--tracking-tight);
    font-weight: 700;
    line-height: 1;
}

/* Bottom area — main headline + sub */
.portfolio-hero-content {
    position: relative;
    z-index: 3;
    padding: 0 var(--gutter) var(--space-20);
}

.portfolio-hero-content .display-hero {
    margin-bottom: var(--space-6);
    max-width: 900px;
    color: var(--white);
}

.portfolio-hero-content .display-hero em {
    color: var(--accent);
    font-style: italic;
}

.portfolio-hero-content .hero-sub {
    font-size: var(--text-md);
    color: rgba(255,255,255,0.45);
    max-width: 480px;
    line-height: var(--leading-normal);
    margin-bottom: var(--space-10);
}

/* Stats bar pinned to hero bottom */
.portfolio-hero-stats {
    display: flex;
    gap: 0;
    border-top: 1px solid rgba(255,255,255,0.08);
    margin-top: var(--space-10);
}

.portfolio-hero-stat {
    flex: 1;
    padding: var(--space-5) 0;
    border-right: 1px solid rgba(255,255,255,0.08);
    padding-right: var(--space-6);
}

.portfolio-hero-stat:last-child { border-right: none; }

.portfolio-hero-stat__num {
    font-family: var(--font-display);
    font-size: var(--text-2xl);
    font-weight: 700;
    color: var(--white);
    letter-spacing: var(--tracking-tight);
    line-height: 1;
    display: block;
    margin-bottom: 4px;
}

.portfolio-hero-stat__label {
    font-size: var(--text-xs);
    letter-spacing: var(--tracking-widest);
    text-transform: uppercase;
    color: rgba(255,255,255,0.3);
}

/* Filters */
.portfolio-filters {
    min-height: 72px;
    background: var(--cream);
    display: flex;
    align-items: center;
    border-bottom: 2px solid var(--border-light);
    position: sticky;
    top: 80px;
    z-index: 50;
}

.filter-tabs {
    display: flex;
    gap: 0;
    flex-wrap: wrap;
}

.filter-tab {
    font-family: var(--font-body);
    font-size: var(--text-xs);
    font-weight: 600;
    letter-spacing: var(--tracking-widest);
    text-transform: uppercase;
    color: var(--text-muted-dark);
    padding: var(--space-5) var(--space-6);
    cursor: pointer;
    border: none;
    background: none;
    border-bottom: 3px solid transparent;
    transition: all var(--t-fast);
    text-decoration: none;
    display: inline-block;
}

.filter-tab:hover {
    color: var(--black);
    background: var(--cream-2);
}

.filter-tab.active,
.filter-tab[aria-current="true"] {
    color: var(--accent);
    border-bottom-color: var(--accent);
}

/* ---- Mouse lens / crosshair ---- */
.portfolio-hero-lens {
    position: absolute;
    inset: 0;
    z-index: 2;
    pointer-events: none;
    background: radial-gradient(
        circle 300px at var(--lx, -400px) var(--ly, -400px),
        rgba(255, 255, 255, 0.13) 0%,
        rgba(255, 45,  0,  0.05) 45%,
        transparent 70%
    );
}

.portfolio-hero-ring {
    position: absolute;
    width: 200px;
    height: 200px;
    border-radius: 50%;
    border: 1px solid rgba(255, 255, 255, 0.22);
    pointer-events: none;
    z-index: 3;
    transform: translate(-50%, -50%);
    opacity: 0;
    transition: opacity 0.35s ease;
}

.portfolio-hero-ring.is-visible { opacity: 1; }

/* Crosshair lines inside ring */
.portfolio-hero-ring::before,
.portfolio-hero-ring::after {
    content: '';
    position: absolute;
    background: rgba(255, 255, 255, 0.15);
}
.portfolio-hero-ring::before { width: 1px; height: 100%; left: 50%; top: 0; transform: translateX(-50%); }
.portfolio-hero-ring::after  { height: 1px; width: 100%; top: 50%; left: 0; transform: translateY(-50%); }

/* Smooth parallax on bg img */
.portfolio-hero-bg img {
    transition: transform 0.1s linear;
}

/* ---- Portfolio list section ---- */
.portfolio-page-section {
    background: var(--off-white);
    padding: var(--space-16) 0 var(--space-24);
}

.portfolio-page-intro {
    display: flex;
    align-items: flex-end;
    justify-content: space-between;
    gap: var(--space-6);
    margin-bottom: 0;
    padding-bottom: var(--space-8);
    border-bottom: 1px solid var(--border-light);
}

.portfolio-page-intro__left .display-sm {
    color: var(--black);
}

/* ---- Portfolio list (editorial) ---- */
.portfolio-list {
    border-top: none; /* already has border from intro */
}

.portfolio-page-item {
    display: block;
}

.portfolio-page-item.hidden {
    display: none;
}

.portfolio-list-item {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--space-8);
    padding: var(--space-10) 0;
    border-bottom: 1px solid var(--border-light);
    text-decoration: none;
    color: inherit;
    cursor: pointer;
    transition: background var(--t-fast);
    position: relative;
}

.portfolio-list-item::before {
    content: '';
    position: absolute;
    left: calc(-1 * var(--gutter));
    right: calc(-1 * var(--gutter));
    top: 0;
    bottom: 0;
    background: var(--cream);
    opacity: 0;
    transition: opacity var(--t-fast);
    z-index: 0;
    pointer-events: none;
}

.portfolio-list-item:hover::before {
    opacity: 1;
}

.portfolio-list-item__left {
    display: flex;
    align-items: center;
    gap: var(--space-8);
    flex: 1;
    min-width: 0;
    position: relative;
    z-index: 1;
}

.portfolio-list-item__num {
    font-family: var(--font-display);
    font-size: var(--text-sm);
    font-weight: 700;
    color: rgba(0,0,0,0.15);
    width: 2.2em;
    flex-shrink: 0;
    letter-spacing: -0.02em;
}

.portfolio-list-item__text {
    min-width: 0;
}

.portfolio-list-item__cat {
    display: block;
    margin-bottom: var(--space-1);
    color: var(--text-muted-dark);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.portfolio-list-item__title {
    font-family: var(--font-display);
    font-size: clamp(1.15rem, 2.2vw, 1.9rem);
    font-weight: 700;
    color: var(--black);
    letter-spacing: -0.025em;
    line-height: 1.15;
    transition: color var(--t-fast);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.portfolio-list-item:hover .portfolio-list-item__title {
    color: var(--accent);
}

.portfolio-list-item__right {
    display: flex;
    align-items: center;
    gap: var(--space-6);
    flex-shrink: 0;
    position: relative;
    z-index: 1;
}

.portfolio-list-item__meta {
    font-size: var(--text-xs);
    letter-spacing: var(--tracking-widest);
    text-transform: uppercase;
    color: rgba(0,0,0,0.3);
    white-space: nowrap;
}

.portfolio-list-item__img {
    width: 110px;
    height: 72px;
    overflow: hidden;
    flex-shrink: 0;
    background: var(--cream-3);
    position: relative;
}

.portfolio-list-item__img img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.55s var(--ease-expo);
    display: block;
}

.portfolio-list-item:hover .portfolio-list-item__img img {
    transform: scale(1.10);
}

.portfolio-list-item__arrow {
    font-family: var(--font-display);
    font-size: var(--text-xl);
    font-weight: 300;
    color: var(--accent);
    line-height: 1;
    opacity: 0;
    transform: translateX(-6px);
    transition: opacity var(--t-fast), transform var(--t-fast);
}

.portfolio-list-item:hover .portfolio-list-item__arrow {
    opacity: 1;
    transform: translateX(0);
}

/* Portfolio CTA — high conversion */
.portfolio-cta-strip {
    background: var(--accent);
    padding: var(--space-24) 0;
}

.portfolio-cta-inner {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-16);
    align-items: center;
}

.portfolio-cta-title {
    font-family: var(--font-display);
    font-size: clamp(2.2rem, 4.5vw, 4rem);
    font-weight: 700;
    color: var(--black);
    letter-spacing: var(--tracking-tight);
    line-height: var(--leading-tight);
    margin-bottom: var(--space-10);
}

.portfolio-cta-title em {
    font-style: italic;
    color: rgba(0,0,0,0.55);
}

.portfolio-cta-proof {
    display: flex;
    gap: var(--space-8);
    border-top: 1px solid rgba(0,0,0,0.15);
    padding-top: var(--space-8);
}

.portfolio-cta-proof__item {
    display: flex;
    flex-direction: column;
    gap: var(--space-1);
}

.portfolio-cta-proof__item strong {
    font-family: var(--font-display);
    font-size: var(--text-2xl);
    font-weight: 700;
    color: var(--black);
    letter-spacing: var(--tracking-tight);
    line-height: 1;
}

.portfolio-cta-proof__item span {
    font-size: var(--text-xs);
    letter-spacing: var(--tracking-widest);
    text-transform: uppercase;
    color: rgba(0,0,0,0.45);
}

.portfolio-cta-lead {
    font-size: var(--text-md);
    color: rgba(0,0,0,0.6);
    line-height: var(--leading-normal);
    margin-bottom: var(--space-8);
}

.portfolio-cta-actions {
    display: flex;
    align-items: center;
    gap: var(--space-5);
    margin-bottom: var(--space-6);
    flex-wrap: wrap;
}

.portfolio-cta-btn-primary {
    flex-shrink: 0;
}

.portfolio-cta-wa {
    display: inline-flex;
    align-items: center;
    gap: var(--space-2);
    font-family: var(--font-display);
    font-size: var(--text-sm);
    font-weight: 700;
    color: var(--black);
    text-decoration: none;
    border-bottom: 2px solid rgba(0,0,0,0.2);
    padding-bottom: 2px;
    transition: border-color var(--t-fast), color var(--t-fast);
}

.portfolio-cta-wa:hover {
    color: var(--black);
    border-bottom-color: var(--black);
}

.portfolio-cta-note {
    font-size: var(--text-xs);
    color: rgba(0,0,0,0.40);
    letter-spacing: var(--tracking-wide);
    display: flex;
    align-items: center;
    gap: var(--space-2);
    flex-wrap: wrap;
}

.portfolio-cta-note svg {
    color: rgba(0,0,0,0.5);
    flex-shrink: 0;
}

/* ============================================================
   CASE STUDY
   ============================================================ */

/* ============================================================
   CASE STUDY — HERO
============================================================ */
.cs-hero {
    min-height: 100vh;
    position: relative;
    overflow: hidden;
    display: flex;
    align-items: flex-end;
    background: var(--black);
}

.cs-hero-bg {
    position: absolute;
    inset: 0;
    z-index: 0;
}

.cs-hero-bg img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    object-position: center center;
    opacity: 0.35;
}

.cs-hero-overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(to top, rgba(8,8,8,0.98) 20%, rgba(8,8,8,0.5) 60%, rgba(8,8,8,0.2) 100%);
    z-index: 1;
}

.cs-hero-content {
    position: relative;
    z-index: 2;
    padding: var(--space-20) 0;
    width: 100%;
}

/* Back link */
.cs-back-link {
    display: inline-flex;
    align-items: center;
    gap: var(--space-2);
    font-size: var(--text-xs);
    font-weight: 600;
    letter-spacing: var(--tracking-widest);
    text-transform: uppercase;
    color: rgba(255,255,255,0.45);
    text-decoration: none;
    margin-bottom: var(--space-12);
    transition: color var(--t-fast);
}

.cs-back-link:hover { color: var(--white); }
.cs-back-link svg { transition: transform var(--t-fast); }
.cs-back-link:hover svg { transform: translateX(-3px); }

/* Meta bar — pill tags above title */
.cs-hero-meta {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-3);
    margin-bottom: var(--space-8);
}

.cs-meta-item {
    display: flex;
    flex-direction: column;
    gap: 4px;
    padding: var(--space-3) var(--space-5);
    background: rgba(255,255,255,0.08);
    border: 1px solid rgba(255,255,255,0.12);
}

.cs-meta-item .eyebrow {
    margin-bottom: 0;
    color: rgba(255,255,255,0.45);
    font-size: 0.6rem;
}

.cs-meta-value {
    font-family: var(--font-display);
    font-size: var(--text-sm);
    font-weight: 600;
    color: var(--white);
    line-height: 1.2;
}

.cs-hero-title {
    font-family: var(--font-display);
    font-size: clamp(2.8rem, 7vw, 6.5rem);
    font-weight: 700;
    color: var(--white);
    letter-spacing: var(--tracking-tight);
    line-height: var(--leading-tight);
    margin-bottom: var(--space-6);
    max-width: 900px;
}

.cs-hero-subtitle {
    color: rgba(255,255,255,0.65);
    font-size: var(--text-lg);
    max-width: 600px;
    line-height: var(--leading-normal);
}

/* ============================================================
   CASE STUDY — DESAFIO + SOLUÇÃO  (LIGHT section)
============================================================ */
.cs-narrative {
    background: var(--cream);
    padding: var(--space-20) 0;
}

.cs-narrative-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 2px;
    background: var(--cream-3);
}

.cs-narrative-block {
    padding: var(--space-12) var(--space-10);
    background: var(--off-white);
}

.cs-narrative-block:first-child {
    border-top: 3px solid var(--accent);
}
.cs-narrative-block:last-child {
    border-top: 3px solid var(--cyan);
}

.cs-narrative-block .eyebrow {
    display: block;
    margin-bottom: var(--space-5);
}

/* Adjust cyan eyebrow for light background readability */
.cs-narrative-block .eyebrow--cyan {
    color: #009B87;
}

.cs-narrative-block h2 {
    font-family: var(--font-display);
    font-size: clamp(1.6rem, 3vw, 2.2rem);
    font-weight: 700;
    color: var(--black);
    margin-bottom: var(--space-6);
    line-height: var(--leading-snug);
    letter-spacing: -0.02em;
}

.cs-narrative-block p {
    color: var(--text-muted-dark);
    font-size: var(--text-md);
    line-height: 1.7;
}

/* ============================================================
   CASE STUDY — RESULTADOS
============================================================ */
.cs-results {
    background: var(--black);
    padding: var(--space-24) 0;
}

.cs-results-header {
    margin-bottom: var(--space-16);
}

.cs-results-header .eyebrow {
    display: block;
    color: var(--accent);
    margin-bottom: var(--space-4);
}

.cs-results-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 1px;
    background: rgba(255,255,255,0.08);
}

.cs-result-card {
    background: var(--dark);
    padding: var(--space-10) var(--space-8);
    display: flex;
    flex-direction: column;
    gap: var(--space-4);
    border-bottom: 3px solid transparent;
    transition: border-color var(--t-base), background var(--t-base);
}

.cs-result-card:hover {
    background: var(--dark-2);
    border-bottom-color: var(--accent);
}

.cs-result-value {
    display: flex;
    align-items: baseline;
    gap: 4px;
}

.cs-result-number {
    font-family: var(--font-display);
    font-size: clamp(3rem, 5vw, 4.5rem);
    font-weight: 700;
    color: var(--white);
    letter-spacing: var(--tracking-tight);
    line-height: 1;
}

.cs-result-unit {
    font-family: var(--font-display);
    font-size: var(--text-xl);
    font-weight: 700;
    color: var(--accent);
}

.cs-result-label {
    font-family: var(--font-body);
    font-size: var(--text-sm);
    color: rgba(255,255,255,0.55);
    line-height: var(--leading-snug);
}

/* ============================================================
   CASE STUDY — GALERIA  (LIGHT section)
============================================================ */
.cs-gallery {
    background: var(--cream-2);
    padding: var(--space-20) 0;
}

.cs-gallery .eyebrow {
    display: block;
    color: var(--text-muted-dark);
    margin-bottom: var(--space-8);
}

.cs-gallery-header {
    margin-bottom: var(--space-8);
}

.cs-gallery-header .eyebrow {
    margin-bottom: var(--space-2);
}

.cs-gallery-header h2 {
    font-family: var(--font-display);
    font-size: clamp(1.8rem, 3.5vw, 2.8rem);
    font-weight: 700;
    color: var(--black);
    letter-spacing: var(--tracking-tight);
    line-height: var(--leading-snug);
}

.cs-gallery-grid {
    display: grid;
    grid-template-columns: repeat(12, 1fr);
    gap: 4px;
}

.cs-gallery-item:nth-child(1) { grid-column: span 8; }
.cs-gallery-item:nth-child(2) { grid-column: span 4; }
.cs-gallery-item:nth-child(3) { grid-column: span 4; }
.cs-gallery-item:nth-child(4) { grid-column: span 8; }
.cs-gallery-item:only-child   { grid-column: span 12; }

.cs-gallery-item {
    overflow: hidden;
    aspect-ratio: 16/10;
    background: var(--cream-3);
    cursor: zoom-in;
}

.cs-gallery-item img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.6s var(--ease-expo);
}

.cs-gallery-item:hover img {
    transform: scale(1.04);
}

/* ============================================================
   CASE STUDY — CTA
============================================================ */
.cs-cta {
    min-height: 50vh;
    background: var(--accent);
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    padding: var(--space-20) var(--gutter);
}

.cs-cta-inner {
    max-width: 640px;
}

.cs-cta-inner .eyebrow {
    color: rgba(0,0,0,0.5);
    display: block;
    margin-bottom: var(--space-5);
}

.cs-cta-title {
    font-family: var(--font-display);
    font-size: clamp(2.5rem, 5vw, 4.5rem);
    font-weight: 700;
    color: var(--black);
    letter-spacing: var(--tracking-tight);
    line-height: var(--leading-tight);
    margin-bottom: var(--space-10);
}

/* ============================================================
   CASE STUDY — NEXT PROJECT
============================================================ */
.cs-next-project {
    background: var(--dark);
    border-top: 1px solid rgba(255,255,255,0.08);
    padding: var(--space-12) 0;
}

.cs-next-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--space-6);
}

.cs-next-label {
    font-size: var(--text-xs);
    letter-spacing: var(--tracking-widest);
    text-transform: uppercase;
    color: rgba(255,255,255,0.35);
    display: block;
    margin-bottom: var(--space-2);
}

.cs-next-title {
    font-family: var(--font-display);
    font-size: var(--text-2xl);
    font-weight: 700;
    color: var(--white);
    transition: color var(--t-fast);
}

.cs-next-link {
    text-decoration: none;
}

.cs-next-link:hover .cs-next-title {
    color: var(--accent);
}

/* ============================================================
   LIGHTBOX
   ============================================================ */
.lightbox {
    position: fixed;
    inset: 0;
    background: rgba(0,0,0,0.97);
    z-index: 9000;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.25s ease;
}

.lightbox.open {
    opacity: 1;
    pointer-events: all;
}

.lightbox__img-wrap {
    position: relative;
    max-width: 90vw;
    max-height: 85vh;
    display: flex;
    align-items: center;
    justify-content: center;
}

.lightbox__img {
    max-width: 90vw;
    max-height: 85vh;
    width: auto;
    height: auto;
    object-fit: contain;
    display: block;
    transition: opacity 0.2s ease;
}

.lightbox__caption {
    position: absolute;
    bottom: -2.5rem;
    left: 0;
    right: 0;
    text-align: center;
    font-size: var(--text-xs);
    color: rgba(255,255,255,0.45);
    letter-spacing: var(--tracking-wide);
    text-transform: uppercase;
}

.lightbox__close {
    position: fixed;
    top: var(--space-6);
    right: var(--space-6);
    width: 48px;
    height: 48px;
    background: rgba(255,255,255,0.08);
    border: 1px solid rgba(255,255,255,0.15);
    color: var(--white);
    font-size: 1.5rem;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: background var(--t-fast);
    z-index: 9001;
}

.lightbox__close:hover { background: rgba(255,255,255,0.18); }

.lightbox__btn {
    position: fixed;
    top: 50%;
    transform: translateY(-50%);
    width: 48px;
    height: 56px;
    background: rgba(255,255,255,0.06);
    border: 1px solid rgba(255,255,255,0.12);
    color: var(--white);
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: background var(--t-fast);
    z-index: 9001;
}

.lightbox__btn:hover { background: rgba(255,255,255,0.16); }
.lightbox__btn--prev { left: var(--space-6); }
.lightbox__btn--next { right: var(--space-6); }

.lightbox__counter {
    position: fixed;
    bottom: var(--space-6);
    left: 50%;
    transform: translateX(-50%);
    font-size: var(--text-xs);
    color: rgba(255,255,255,0.35);
    letter-spacing: var(--tracking-widest);
    text-transform: uppercase;
}

/* ============================================================
   RESPONSIVE
   ============================================================ */
@media (max-width: 1023px) {
    .portfolio-hero-stats { display: grid; grid-template-columns: 1fr 1fr; }
    .portfolio-hero-stat  { border-right: none; border-bottom: 1px solid rgba(255,255,255,0.08); }
    .portfolio-hero-stat:nth-child(odd)  { border-right: 1px solid rgba(255,255,255,0.08); }
    .portfolio-hero-stat:nth-last-child(-n+2) { border-bottom: none; }
    .portfolio-list-item__img { width: 80px; height: 54px; }
    .portfolio-list-item__meta { display: none; }
    .portfolio-cta-inner  { grid-template-columns: 1fr; gap: var(--space-10); }
    .portfolio-cta-proof  { flex-wrap: wrap; gap: var(--space-6); }
    .cs-narrative-grid    { grid-template-columns: 1fr; gap: 2px; }
    .cs-results-grid      { grid-template-columns: repeat(2, 1fr); }
    .cs-gallery-item:nth-child(n) { grid-column: span 6; }
    .cs-next-inner        { flex-direction: column; align-items: flex-start; }
}

@media (max-width: 767px) {
    .portfolio-hero-top       { flex-direction: column; gap: var(--space-4); }
    .portfolio-hero-project-count { display: none; }
    .portfolio-hero-stats     { grid-template-columns: 1fr 1fr; display: grid; }
    .portfolio-hero-stat      { border-right: none; border-bottom: 1px solid rgba(255,255,255,0.08); }
    .portfolio-hero-stat:nth-child(odd)  { border-right: 1px solid rgba(255,255,255,0.08); }
    .portfolio-hero-stat:nth-last-child(-n+2) { border-bottom: none; }
    .portfolio-page-intro     { flex-direction: column; align-items: flex-start; gap: var(--space-3); }
    .portfolio-list-item      { gap: var(--space-4); padding: var(--space-6) 0; }
    .portfolio-list-item__num { display: none; }
    .portfolio-list-item__img { width: 64px; height: 44px; }
    .portfolio-list-item__arrow { display: none; }
    .portfolio-list-item__left { gap: var(--space-4); }
    .portfolio-list-item__title { font-size: 1rem; white-space: normal; }
    .portfolio-cta-inner  { grid-template-columns: 1fr; gap: var(--space-8); }
    .portfolio-cta-proof  { gap: var(--space-5); }
    .portfolio-cta-actions { flex-direction: column; align-items: flex-start; }
    .cs-results-grid          { grid-template-columns: 1fr 1fr; }
    .filter-tabs              { gap: 0; }
    .filter-tab               { padding: var(--space-4); font-size: 10px; }
    .cs-hero-meta             { flex-wrap: wrap; gap: var(--space-3); }
    .cs-gallery-item:nth-child(n) { grid-column: span 12; }
    .cs-narrative-block       { padding: var(--space-8) var(--space-6); }
    .cs-result-card           { padding: var(--space-8) var(--space-6); }
    .cs-gallery-header h2     { font-size: 1.6rem; }

    /* Lightbox mobile */
    .lightbox__btn--prev  { left: var(--space-3); }
    .lightbox__btn--next  { right: var(--space-3); }
    .lightbox__img        { max-width: 96vw; max-height: 75vh; }
    .lightbox__close      { top: var(--space-3); right: var(--space-3); }
}