/* Base design tokens */
:root {
    --color-primary: #b71c1c;
    --color-accent: #fbc02d;
    --color-dark: #212121;
    --color-text: #424242;
    --color-muted: #f5f5f5;
    --color-border: #e0e0e0;
    --color-white: #ffffff;
    --font-heading: 'Montserrat', sans-serif;
    --font-body: 'Open Sans', sans-serif;
    --container-width: 1140px;
    --shadow-medium: 0 20px 40px rgba(0, 0, 0, 0.08);
    --transition-base: all 0.3s ease;
}

* {
    box-sizing: border-box;
}

body {
    margin: 0;
    font-family: var(--font-body);
    font-size: 16px;
    line-height: 1.6;
    color: var(--color-text);
    background-color: var(--color-muted);
}

h1, h2, h3, h4, h5 {
    margin: 0;
    font-family: var(--font-heading);
    color: var(--color-dark);
}

p {
    margin: 0;
}

a {
    color: inherit;
    text-decoration: none;
}

img {
    max-width: 100%;
    display: block;
}

.container {
    width: min(100% - 2.5rem, var(--container-width));
    margin: 0 auto;
}

.section {
    padding: clamp(3.5rem, 6vw, 6rem) 0;
}

.section-heading {
    text-align: center;
    margin-bottom: clamp(2.5rem, 5vw, 4rem);
}

.section-heading span {
    display: inline-block;
    padding: 0.25rem 0.75rem;
    background: rgba(183, 28, 28, 0.1);
    color: var(--color-primary);
    font-weight: 600;
    border-radius: 999px;
    margin-bottom: 1rem;
}

.section-heading h2 {
    font-size: clamp(2rem, 4vw, 2.75rem);
    margin-bottom: 1rem;
}

.section-heading p {
    max-width: 720px;
    margin: 0 auto;
    color: #606060;
}

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    padding: 0.85rem 1.75rem;
    font-weight: 600;
    font-family: var(--font-heading);
    border-radius: 999px;
    border: 2px solid transparent;
    cursor: pointer;
    transition: var(--transition-base);
    text-transform: uppercase;
    font-size: 0.9rem;
    letter-spacing: 0.02em;
}

.btn svg {
    width: 1.1rem;
    height: 1.1rem;
}

.btn-primary {
    background: var(--color-primary);
    color: var(--color-white);
}

.btn-primary:hover {
    background: #8f1111;
}

.btn-outline {
    background: transparent;
    color: var(--color-primary);
    border-color: var(--color-primary);
}

.btn-outline:hover {
    background: var(--color-primary);
    color: var(--color-white);
}

.btn-light {
    background: var(--color-white);
    color: var(--color-dark);
}

.btn-light:hover {
    background: rgba(255, 255, 255, 0.9);
    transform: translateY(-2px);
}

.badge {
    display: inline-flex;
    align-items: center;
    gap: 0.35rem;
    padding: 0.35rem 0.75rem;
    border-radius: 999px;
    font-size: 0.75rem;
    font-weight: 600;
    background: rgba(251, 192, 45, 0.15);
    color: var(--color-primary);
}

.grid {
    display: grid;
    gap: clamp(1.5rem, 3vw, 2.5rem);
}

.grid-two {
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
}

.grid-three {
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
}

.grid-spacious {
    gap: 2.25rem;
}

.card {
    background: var(--color-white);
    border-radius: 1.25rem;
    padding: clamp(1.75rem, 3vw, 2.25rem);
    box-shadow: var(--shadow-medium);
    position: relative;
    overflow: hidden;
}

.card-media {
    margin: calc(-1 * clamp(1.75rem, 3vw, 2.25rem)) calc(-1 * clamp(1.75rem, 3vw, 2.25rem)) clamp(1.25rem, 2.5vw, 1.75rem);
    border-radius: calc(1.25rem - 0.25rem) calc(1.25rem - 0.25rem) 0 0;
    overflow: hidden;
    aspect-ratio: 16 / 9;
}

.card-media img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.hero > .container {
    position: relative;
    z-index: 1;
}

.card::before {
    content: '';
    position: absolute;
    inset: 0 0 auto 0;
    height: 4px;
    background: linear-gradient(90deg, var(--color-primary), var(--color-accent));
    pointer-events: none;
    z-index: 2;
}

.card::after {
    content: '';
    position: absolute;
    inset: auto -50px -65px;
    height: 140px;
    background: linear-gradient(135deg, rgba(183, 28, 28, 0.07), transparent 65%);
    transform: rotate(-6deg);
    pointer-events: none;
    z-index: 1;
}

.card-icon {
    width: 3.5rem;
    height: 3.5rem;
    border-radius: 18px;
    background: rgba(183, 28, 28, 0.12);
    display: grid;
    place-items: center;
    margin-bottom: 1.5rem;
}

.card h3 {
    font-size: 1.3rem;
    margin-bottom: 0.75rem;
}

.card p {
    color: #5f5f5f;
}

.hero {
    position: relative;
    min-height: 90vh;
    display: flex;
    align-items: center;
    color: var(--color-white);
    background: linear-gradient(rgba(33, 33, 33, 0.8), rgba(33, 33, 33, 0.8)), url('https://images.unsplash.com/photo-1541881856704-3a9710e2e1b1?auto=format&fit=crop&w=1600&q=80') center/cover;
}

/* Specific hero background for the accueil section (overrides default .hero) */
#accueil.hero {
    background-image: linear-gradient(rgba(33, 33, 33, 0.6), rgba(33, 33, 33, 0.6)), url("../img/fra-travaux-voies-ferrees-nationales-scaled.webp");
    background-position: center;
    background-size: cover;
}

.hero::after {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(to top, rgba(33, 33, 33, 0.65), transparent 55%);
}

@media (min-width: 1024px) {
    .hero > .container {
        padding-top: clamp(3.5rem, 8vw, 7rem);
        padding-bottom: clamp(3rem, 6vw, 5.5rem);
    }
}

.hero-content {
    max-width: 720px;
}

.hero h1 {
    font-size: clamp(2.5rem, 6vw, 3.75rem);
    margin-bottom: 1.25rem;
    color: var(--color-white);
}

.hero p {
    font-size: clamp(1.05rem, 2.5vw, 1.25rem);
    margin-bottom: 2rem;
    color: rgba(255, 255, 255, 0.85);
}

.hero-cta {
    display: flex;
    flex-wrap: wrap;
    gap: 1rem;
}

.hero-cta--compact {
    gap: 0.6rem;
}

.btn-sm {
    padding: 0.55rem 1.1rem;
    font-size: 0.85rem;
    border-radius: 999px;
}

.actions-centered {
    justify-content: center;
}

.section-cta {
    margin-top: 2.5rem;
}

.hero-stats {
    margin: clamp(2.5rem, 5vw, 4rem) 0 clamp(2.5rem, 5vw, 4rem);
    display: grid;
    gap: clamp(1.25rem, 3vw, 2rem);
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
}

.stat {
    background: rgba(33, 33, 33, 0.65);
    padding: 1.4rem 1.6rem;
    border-radius: 1rem;
    border: 1px solid rgba(251, 192, 45, 0.2);
}

.stat strong {
    display: block;
    font-size: 2rem;
    color: var(--color-accent);
}

.stat span {
    display: block;
    font-size: 0.9rem;
    letter-spacing: 0.04em;
    text-transform: uppercase;
}

.values {
    background: var(--color-dark);
    color: var(--color-white);
    border-radius: 1.5rem;
    display: grid;
    gap: 2.5rem;
    padding: clamp(2.5rem, 6vw, 3.5rem);
    box-shadow: var(--shadow-medium);
}

.values-list {
    display: grid;
    gap: 1.5rem;
}

.value-item {
    display: grid;
    gap: 0.5rem;
    border-left: 3px solid rgba(251, 192, 45, 0.45);
    padding-left: 1.25rem;
}

.value-item h3 {
    color: var(--color-white);
}

.highlight {
    display: grid;
    gap: clamp(2rem, 5vw, 3rem);
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    align-items: stretch;
    grid-auto-rows: 1fr;
}

.highlight-card {
    display: grid;
    gap: clamp(1.25rem, 3vw, 2rem);
    background: var(--color-white);
    padding: clamp(2.25rem, 5vw, 2.75rem);
    border-radius: 1.5rem;
    box-shadow: var(--shadow-medium);
    border: 1px solid rgba(0, 0, 0, 0.05);
    align-content: start;
    position: relative;
    overflow: hidden;
}

.highlight-card .hero-cta {
    display: flex;
    flex-wrap: wrap;
    gap: 1rem;
    margin-top: auto;
}

.highlight-card .hero-cta .btn {
    flex: 1 1 180px;
    justify-content: center;
}

.highlight-card .hero-cta .btn-light {
    border-color: var(--color-primary);
    color: var(--color-primary);
}

@media (max-width: 640px) {
    .highlight-card .hero-cta .btn {
        flex: 1 1 100%;
    }
}
.highlight-card::before,
.project-card::before,
.project-case::before,
.partner-card::before,
.metric-card::before,
.process-step::before,
.faq-item::before,
.certification-list li::before {
    content: '';
    position: absolute;
    inset: 0 0 auto 0;
    height: 4px;
    background: linear-gradient(90deg, var(--color-primary), var(--color-accent));
    pointer-events: none;
    z-index: 2;
}

.highlight-card h3,
.highlight-card p,
.highlight-card ul {
    margin: 0;
}

.highlight-card span {
    font-size: 0.75rem;
    font-weight: 700;
    letter-spacing: 0.25em;
    text-transform: uppercase;
    color: rgba(251, 192, 45, 0.8);
}

.services-grid {
    display: flex;
    flex-wrap: wrap;
    gap: clamp(1.5rem, 3vw, 2.5rem);
    align-items: stretch;
}

.services-grid > * {
    flex: 1 1 clamp(280px, 30%, 360px);
    display: flex;
}

.service-card {
    --service-card-padding: clamp(1.9rem, 3vw, 2.25rem);
    --service-card-radius: 1.5rem;
    background: var(--color-white);
    border-radius: var(--service-card-radius);
    padding: var(--service-card-padding);
    box-shadow: var(--shadow-medium);
    transition: var(--transition-base);
    border: 1px solid rgba(0, 0, 0, 0.05);
    position: relative;
    overflow: hidden;
    display: flex;
    flex-direction: column;
    gap: 1.1rem;
    width: 100%;
}

.service-card::before {
    content: '';
    position: absolute;
    inset: 0 0 auto 0;
    height: 4px;
    background: linear-gradient(90deg, var(--color-primary), var(--color-accent));
    pointer-events: none;
    z-index: 2;
}

.service-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 28px 45px rgba(0, 0, 0, 0.12);
}

.service-card::after {
    content: '';
    position: absolute;
    inset: auto -20px -80px;
    height: 160px;
    background: linear-gradient(135deg, rgba(251, 192, 45, 0.25), transparent 70%);
    transform: rotate(-8deg);
    pointer-events: none;
    z-index: 1;
}

.service-image {
    border-radius: var(--service-card-radius) var(--service-card-radius) 1rem 1rem;
    overflow: hidden;
    aspect-ratio: 4 / 3;
    background: rgba(183, 28, 28, 0.08);
    margin: calc(-1 * var(--service-card-padding)) calc(-1 * var(--service-card-padding)) 1.25rem;
}

.service-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
}

.service-card ul {
    margin: 0;
    padding: 0;
    list-style: none;
    display: grid;
    gap: 0.6rem;
    flex-grow: 1;
}

.service-card li {
    display: grid;
    grid-template-columns: auto 1fr;
    align-items: start;
    gap: 0.5rem;
    font-size: 0.95rem;
    color: #5d5d5d;
}

.service-card li svg {
    width: 1rem;
    height: 1rem;
    flex-shrink: 0;
    margin-top: 0.2rem;
}

.service-card .btn {
    margin-top: auto;
    align-self: start;
    justify-self: start;
}

.projects {
    background: var(--color-white);
}

.projects-grid {
    display: grid;
    gap: 1.75rem;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    align-items: stretch;
}

.project-card {
    border-radius: 1.25rem;
    overflow: hidden;
    box-shadow: var(--shadow-medium);
    background: var(--color-white);
    display: flex;
    flex-direction: column;
    position: relative;
}

.project-card img {
    height: 220px;
    object-fit: cover;
}

.project-card .project-info {
    padding: 1.5rem;
    display: flex;
    flex-direction: column;
    gap: 0.65rem;
    flex: 1;
}

.project-card .project-info p {
    margin: 0;
    flex: 1;
}

.project-meta {
    display: flex;
    gap: 0.85rem;
    flex-wrap: wrap;
    font-size: 0.8rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: #757575;
    margin-top: auto;
}

.project-meta span {
    display: inline-flex;
    align-items: center;
    gap: 0.35rem;
}

.impact {
    background: linear-gradient(135deg, rgba(183, 28, 28, 1), rgba(33, 33, 33, 0.95));
    color: var(--color-white);
    border-radius: 1.5rem;
    padding: clamp(2.75rem, 5vw, 3.5rem);
    display: grid;
    gap: clamp(2rem, 5vw, 3rem);
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    align-items: stretch;
    box-shadow: var(--shadow-medium);
}

.impact > div:first-child {
    display: grid;
    gap: clamp(1.25rem, 3vw, 2rem);
    align-content: start;
}

.impact h2 {
    color: var(--color-white);
}

.impact p {
    color: rgba(255, 255, 255, 0.86);
}

.impact .hero-cta {
    display: flex;
    flex-wrap: wrap;
    gap: 1rem;
    align-items: center;
}

.impact .hero-cta .btn {
    flex: 1 1 180px;
    justify-content: center;
}

.impact-stats {
    display: grid;
    gap: 1.5rem;
    grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
    align-items: stretch;
}

.impact-stats > div {
    display: grid;
    gap: 0.6rem;
    padding: 1.5rem;
    border-radius: 1.2rem;
    background: rgba(0, 0, 0, 0.18);
    border: 1px solid rgba(255, 255, 255, 0.1);
    text-align: center;
}

.impact-stats strong {
    font-size: clamp(2.2rem, 5vw, 2.8rem);
    color: var(--color-accent);
}

.impact-stats span {
    font-size: 0.95rem;
    color: rgba(255, 255, 255, 0.78);
    letter-spacing: 0.02em;
}

#contact-cta .impact {
    grid-template-columns: minmax(0, 1.2fr) minmax(0, 1fr);
    gap: clamp(2.5rem, 6vw, 3.5rem);
}

#contact-cta .impact-content {
    display: grid;
    gap: clamp(1.4rem, 3vw, 2.2rem);
    align-content: center;
    padding-block: clamp(0.75rem, 2vw, 1.5rem);
}

#contact-cta .impact-content h2 {
    margin: 0;
}

#contact-cta .impact-content p {
    margin: 0;
    color: rgba(255, 255, 255, 0.88);
}

#contact-cta .impact-content .hero-cta {
    gap: clamp(0.75rem, 2vw, 1.2rem);
}

#contact-cta .impact-metrics {
    gap: clamp(1.3rem, 3vw, 1.8rem);
}

#contact-cta .impact-metrics > div {
    padding: 1.85rem 1.75rem;
    border-radius: 1.35rem;
    background: rgba(0, 0, 0, 0.22);
    border: 1px solid rgba(255, 255, 255, 0.16);
    align-items: start;
}

#contact-cta .impact-metrics strong {
    text-align: left;
}

#contact-cta .impact-metrics span {
    text-align: left;
    line-height: 1.4;
}

@media (max-width: 768px) {
    #contact-cta .impact {
        grid-template-columns: 1fr;
        gap: 2rem;
    }

    #contact-cta .impact-content {
        gap: 1.4rem;
    }

    #contact-cta .impact-content .hero-cta {
        gap: 0.75rem;
    }
}

@media (max-width: 640px) {
    .impact .hero-cta .btn {
        flex: 1 1 100%;
    }
}

.contact-wrapper {
    display: grid;
    gap: clamp(2rem, 4vw, 3.5rem);
}

.contact-info {
    display: grid;
    gap: 1.5rem;
}

.info-item {
    display: grid;
    grid-template-columns: auto 1fr;
    gap: 1.5rem;
    align-items: center;
    padding: 1.75rem 2rem;
    background: var(--color-white);
    border-radius: 1.25rem;
    box-shadow: var(--shadow-medium);
}

.info-icon {
    width: 3.5rem;
    height: 3.5rem;
    border-radius: 1.1rem;
    background: rgba(183, 28, 28, 0.12);
    display: grid;
    place-items: center;
    color: var(--color-primary);
}

.info-icon svg {
    width: 1.8rem;
    height: 1.8rem;
}

.info-content {
    display: flex;
    align-items: center;
    gap: 1.25rem;
}

.info-text {
    display: grid;
    gap: 0.4rem;
    flex: 1;
}

.info-content .btn {
    margin-left: auto;
    white-space: nowrap;
}

.btn-soft {
    background: rgba(183, 28, 28, 0.12);
    color: var(--color-primary);
    border-color: rgba(183, 28, 28, 0.2);
}

.btn-soft:hover {
    background: rgba(183, 28, 28, 0.22);
    color: var(--color-primary);
    transform: translateY(-2px);
}

@media (max-width: 640px) {
    .info-item {
        grid-template-columns: 1fr;
        gap: 1rem;
        padding: 1.5rem;
    }

    .info-icon {
        width: 3rem;
        height: 3rem;
    }

    .info-content {
        flex-direction: column;
        align-items: stretch;
        gap: 1rem;
    }

    .info-content .btn {
        margin-left: 0;
        width: 100%;
        text-align: center;
    }
}

.contact-form {
    background: var(--color-white);
    padding: clamp(2rem, 4vw, 3rem);
    border-radius: 1.5rem;
    box-shadow: var(--shadow-medium);
}

.contact-form form {
    display: grid;
    gap: 1.5rem;
}

.form-row {
    display: grid;
    gap: 1.5rem;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
}

input, textarea, select {
    width: 100%;
    padding: 0.95rem 1.1rem;
    border: 1px solid var(--color-border);
    border-radius: 0.9rem;
    font-family: var(--font-body);
    font-size: 1rem;
    transition: var(--transition-base);
    background: #fcfcfc;
}

input:focus, textarea:focus, select:focus {
    outline: none;
    border-color: var(--color-primary);
    box-shadow: 0 0 0 4px rgba(183, 28, 28, 0.16);
    background: var(--color-white);
}

textarea {
    min-height: 160px;
    resize: vertical;
}

.map-frame {
    width: 100%;
    border: none;
    border-radius: 1.5rem;
    min-height: 360px;
    box-shadow: var(--shadow-medium);
}

/* Responsive map container to preserve aspect ratio and avoid stretching */
.map-embed {
    width: 100%;
    max-width: 100%;
    border-radius: 1.5rem;
    overflow: hidden;
    box-shadow: var(--shadow-medium);
    /* Use modern aspect-ratio when available */
    aspect-ratio: 16 / 9;
    background: var(--color-muted);
}

.map-embed .map-frame {
    width: 100%;
    height: 100%;
    min-height: 0; /* override previous min-height to allow aspect-ratio sizing */
    display: block;
}

/* Fallback for browsers that don't support aspect-ratio */
@supports not (aspect-ratio: 16 / 9) {
    .map-embed {
        position: relative;
        padding-top: 56.25%; /* 16:9 */
    }
    .map-embed .map-frame {
        position: absolute;
        top: 0;
        left: 0;
        width: 100%;
        height: 100%;
    }
}

.footer {
    background: var(--color-dark);
    color: rgba(255, 255, 255, 0.82);
    padding: clamp(3rem, 6vw, 4rem) 0;
}

.footer-top {
    display: grid;
    gap: clamp(2rem, 4vw, 3rem);
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
}

@media (min-width: 1100px) {
    .footer-top {
        grid-template-columns: minmax(260px, 2fr) repeat(4, minmax(170px, 1fr));
    }
}

.footer h4 {
    color: var(--color-white);
    margin-bottom: 1rem;
}

.footer-links {
    list-style: none;
    padding: 0;
    margin: 0;
    display: grid;
    gap: 0.65rem;
}

.footer-links a {
    color: rgba(255, 255, 255, 0.7);
    transition: var(--transition-base);
}

.footer-links a:hover {
    color: var(--color-accent);
}

.social-links {
    display: flex;
    gap: 0.75rem;
}

.social-links a {
    width: 2.5rem;
    height: 2.5rem;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.08);
    display: grid;
    place-items: center;
    border: 1px solid rgba(255, 255, 255, 0.1);
    transition: var(--transition-base);
}

.social-links a:hover {
    transform: translateY(-4px);
    background: rgba(251, 192, 45, 0.18);
    border-color: rgba(251, 192, 45, 0.45);
}

.footer-bottom {
    margin-top: clamp(2.5rem, 5vw, 3.5rem);
    padding-top: 2rem;
    border-top: 1px solid rgba(255, 255, 255, 0.08);
    text-align: center;
    font-size: 0.85rem;
}

.site-header {
    position: sticky;
    top: 0;
    z-index: 60;
    background: rgba(255, 255, 255, 0.96);
    backdrop-filter: blur(10px);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.06);
}

.highlight-card--actions .hero-cta {
    flex-wrap: nowrap;
    gap: 0.75rem;
}

.highlight-card--actions .hero-cta .btn {
    flex: 1 1 auto;
    min-width: 0;
}

@media (max-width: 560px) {
    .highlight-card--actions .hero-cta {
        flex-wrap: wrap;
    }

    .highlight-card--actions .hero-cta .btn {
        flex: 1 1 100%;
    }
}
.nav-container {
    display: grid;
    grid-template-columns: auto minmax(0, 1fr) auto;
    align-items: center;
    gap: clamp(1rem, 3vw, 2.4rem);
    padding-block: 0.95rem;
    position: relative;
}

.nav-main {
    display: flex;
    justify-content: center;
    min-width: 0;

.highlight-card--location {
    gap: clamp(1.4rem, 3vw, 2rem);
    background: linear-gradient(140deg, rgba(33, 33, 33, 0.95), rgba(183, 28, 28, 0.88));
    color: rgba(255, 255, 255, 0.9);
    border: 1px solid rgba(255, 255, 255, 0.18);
}

.highlight-card--location span {
    color: rgba(251, 192, 45, 0.85);
}

.highlight-card--location h3,
.highlight-card--location p {
    color: rgba(255, 255, 255, 0.92);
}

.highlight-card--location .card-list {
    margin-top: 0;
    gap: clamp(1rem, 3vw, 1.4rem);
    grid-template-columns: 1fr;
}

.location-list li {
    display: grid;
    grid-template-columns: auto minmax(0, 1fr);
    align-items: start;
    gap: 0.9rem;
    padding: clamp(1rem, 2.8vw, 1.35rem);
    border-radius: 1.1rem;
    background: rgba(255, 255, 255, 0.12);
    border: 1px solid rgba(255, 255, 255, 0.18);
    backdrop-filter: blur(6px);
}

.location-list svg {
    width: 2.5rem;
    height: 2.5rem;
    padding: 0.6rem;
    border-radius: 999px;
    background: rgba(251, 192, 45, 0.16);
    color: var(--color-accent);
}

.location-list div {
    display: grid;
    gap: 0.25rem;
}

.location-list strong {
    font-size: 0.95rem;
    color: var(--color-white);
}

.location-list span,
.location-list a {
    font-size: 0.88rem;
    color: rgba(255, 255, 255, 0.8);
}

.location-list a {
    font-weight: 600;
}

@media (min-width: 768px) {
    .highlight-card--location .card-list {
        grid-template-columns: repeat(2, minmax(220px, 1fr));
    }
}
    justify-self: center;
}

.brand {
    display: flex;
    align-items: center;
    gap: 0.9rem;
    font-family: var(--font-heading);
    flex-shrink: 0;
}

.brand img {
    height: 3rem;
    width: auto;
    display: block;
}

.brand-logo {
    max-height: 3rem;
    width: auto;
    display: block;
}

.brand-text span {
    display: block;
}

.brand-text strong {
    font-size: 1.1rem;
    color: var(--color-dark);
}

.brand-text small {
    font-size: 0.75rem;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    color: rgba(33, 33, 33, 0.65);
}

.footer .brand-text strong,
.footer .brand-text small {
    color: var(--color-white);
}

.nav-links {
    display: flex;
    align-items: center;
    gap: 1.5rem;
    list-style: none;
    padding: 0;
    margin: 0;
    font-family: var(--font-heading);
    font-size: 0.9rem;
    text-transform: uppercase;
    letter-spacing: 0.06em;
}

.nav-actions {
    display: flex;
    align-items: center;
    gap: 1rem;
    flex-shrink: 0;
    justify-self: end;
}

.nav-actions .btn {
    font-size: 0.8rem;
    padding-inline: 1.4rem;
    white-space: nowrap;
}

.nav-links a {
    position: relative;
    padding-bottom: 0.35rem;
}

.nav-links a::after {
    content: '';
    position: absolute;
    left: 0;
    bottom: 0;
    width: 0;
    height: 2px;
    background: var(--color-primary);
    transition: width 0.2s ease;
}

.nav-links a:hover::after,
.nav-links a.is-active::after {
    width: 100%;
}

.nav-toggle {
    display: none;
    background: none;
    border: none;
    cursor: pointer;
    padding: 0.25rem;
    justify-self: end;
    grid-column: 3;
}

.nav-toggle span,
.nav-toggle span::before,
.nav-toggle span::after {
    display: block;
    width: 26px;
    height: 2px;
    background: var(--color-dark);
    position: relative;
    transition: var(--transition-base);
}

.nav-toggle span::before,
.nav-toggle span::after {
    content: '';
    position: absolute;
    left: 0;
}

.nav-toggle span::before {
    top: -7px;
}

.nav-toggle span::after {
    top: 7px;
}

.nav-toggle.is-active span {
    background: transparent;
}

.nav-toggle.is-active span::before {
    transform: rotate(45deg);
    top: 0;
}

.nav-toggle.is-active span::after {
    transform: rotate(-45deg);
    top: 0;
}

.mobile-menu {
    position: absolute;
    top: calc(100% + 0.75rem);
    right: 0;
    width: min(320px, 90vw);
    padding: 1.75rem 1.6rem 2rem;
    background: rgba(255, 255, 255, 0.98);
    border-radius: 1.4rem;
    box-shadow: var(--shadow-medium);
    border: 1px solid rgba(0, 0, 0, 0.06);
    display: none;
    gap: 1.5rem;
    z-index: 40;
    max-height: calc(100vh - 2.5rem);
    overflow-y: auto;
    -webkit-overflow-scrolling: touch;
}

.mobile-menu-content {
    display: grid;
    gap: 1.5rem;
}

.mobile-menu-nav {
    display: grid;
    gap: 1rem;
}

.mobile-menu a {
    font-family: var(--font-heading);
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.06em;
}

.mobile-menu-actions {
    display: grid;
    gap: 0.75rem;
}

.mobile-menu-actions .btn {
    width: 100%;
    justify-content: center;
}

.mobile-menu-info {
    display: grid;
    gap: 0.35rem;
    font-size: 0.85rem;
    color: #616161;
}

.mobile-menu-info span {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.mobile-menu a[aria-current="page"] {
    color: var(--color-primary);
}

.mobile-menu.is-open {
    display: block;
}

.scroll-top {
    position: fixed;
    right: 1.5rem;
    bottom: 1.5rem;
    width: 3rem;
    height: 3rem;
    border-radius: 50%;
    border: none;
    background: var(--color-primary);
    color: var(--color-white);
    display: grid;
    place-items: center;
    cursor: pointer;
    box-shadow: var(--shadow-medium);
    opacity: 0;
    visibility: hidden;
    transition: var(--transition-base);
    z-index: 45;
}

.scroll-top.is-visible {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.scroll-top svg {
    width: 1.1rem;
    height: 1.1rem;
}

.reveal {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.6s ease, transform 0.6s ease;
}

.reveal.is-visible {
    opacity: 1;
    transform: translateY(0);
}

.card-list {
    list-style: none;
    margin: 1.5rem 0 0;
    padding: 0;
    display: grid;
    gap: 0.75rem;
}

.card-list li {
    display: grid;
    grid-template-columns: auto 1fr;
    align-items: start;
    gap: 0.6rem;
    color: #5d5d5d;
    font-size: 0.95rem;
}

.card-list svg {
    width: 1rem;
    height: 1rem;
    flex-shrink: 0;
    margin-top: 0.2rem;
}

.service-media {
    display: grid;
    gap: clamp(1.25rem, 2.8vw, 1.9rem);
    margin-top: clamp(1.75rem, 3vw, 2.5rem);
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
}

.media-slot {
    background: var(--color-white);
    border-radius: 1rem;
    padding: clamp(1.3rem, 2.6vw, 1.85rem);
    border: 1px solid rgba(15, 23, 42, 0.08);
    box-shadow: 0 18px 36px rgba(15, 23, 42, 0.06);
    display: grid;
    gap: 0.85rem;
}

.media-slot h4 {
    margin: 0;
    font-family: var(--font-heading);
    font-size: 1.05rem;
    color: var(--color-dark);
}

.media-frame {
    position: relative;
    aspect-ratio: 16 / 9;
    border-radius: 0.85rem;
    overflow: hidden;
    background: rgba(183, 28, 28, 0.08);
}

.media-frame img,
.media-frame iframe,
.media-frame video {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    border: 0;
}

.media-frame iframe {
    background: #000;
}

.media-note {
    margin: 0;
    font-size: 0.9rem;
    color: #616161;
}

.toast {
    position: fixed;
    bottom: 1.5rem;
    left: 50%;
    transform: translate(-50%, 20px);
    background: var(--color-dark);
    color: var(--color-white);
    padding: 1rem 1.5rem;
    border-radius: 999px;
    font-weight: 600;
    letter-spacing: 0.02em;
    box-shadow: var(--shadow-medium);
    opacity: 0;
    transition: var(--transition-base);
    z-index: 60;
}

.toast-success {
    background: var(--color-primary);
}

.toast-error {
    background: #d32f2f;
}

.toast-info {
    background: var(--color-dark);
}

.toast.is-visible {
    opacity: 1;
    transform: translate(-50%, 0);
}

.tablet-split {
    display: grid;
    gap: 2.5rem;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    align-items: center;
}

.timeline {
    position: relative;
    --timeline-marker: 1rem;
    --timeline-gap: 1.55rem;
    --timeline-track: 1.35rem;
    padding-left: calc(var(--timeline-track) + var(--timeline-gap));
    display: grid;
    gap: 1.75rem;
}

.timeline::before {
    content: '';
    position: absolute;
    top: calc(var(--timeline-marker) * 0.5);
    bottom: calc(var(--timeline-marker) * 0.5);
    left: var(--timeline-track);
    width: 2px;
    background: rgba(251, 192, 45, 0.35);
    transform: translateX(-50%);
}

.timeline-item {
    position: relative;
    position: relative;
    padding: 0; /* inner card will provide padding and background */
    background: transparent;
    border-radius: 0;
    box-shadow: none;
    overflow: visible;
}

.timeline-item::before {
    content: '';
    position: absolute;
    top: 1.5rem;
    left: calc(-1 * (var(--timeline-gap) + var(--timeline-marker) * 0.5));
    width: var(--timeline-marker);
    height: var(--timeline-marker);
    border-radius: 50%;
    background: var(--color-primary);
    border: 0.25rem solid var(--color-white);
    box-sizing: border-box;
    box-shadow: 0 0 0 0.25rem rgba(183, 28, 28, 0.15);
    z-index: 3;
}

.timeline-item::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, var(--color-primary), var(--color-accent));
    pointer-events: none;
    z-index: 1;
    display: none; /* moved to inner .timeline-card to match card styling */
}

.timeline-card {
    background: var(--color-white);
    border-radius: 1rem;
    padding: clamp(1.25rem, 2.5vw, 1.5rem);
    box-shadow: var(--shadow-medium);
    position: relative;
    overflow: hidden;
}

.timeline-card::before {
    content: '';
    position: absolute;
    inset: 0 0 auto 0;
    height: 4px;
    background: linear-gradient(90deg, var(--color-primary), var(--color-accent));
    pointer-events: none;
    z-index: 2;
    border-radius: 1rem 1rem 0 0;
}

.timeline-item strong {
    display: block;
    margin-bottom: 0.5rem;
    color: var(--color-primary);
    font-family: var(--font-heading);
}

.page-hero {
    position: relative;
    padding: clamp(6rem, 12vw, 8rem) 0;
    color: var(--color-white);
    background-position: center;
    background-size: cover;
    display: flex;
    align-items: center;
}

.page-hero::after {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, rgba(33, 33, 33, 0.78), rgba(33, 33, 33, 0.45));
}

.page-hero > .container {
    position: relative;
    z-index: 1;
    display: grid;
    gap: 1.5rem;
}

.page-hero h1 {
    color: var(--color-white);
    font-size: clamp(2.4rem, 5vw, 3.4rem);
    max-width: 780px;
}

.page-hero p {
    color: rgba(255, 255, 255, 0.85);
    max-width: 720px;
    font-size: clamp(1.05rem, 2.4vw, 1.25rem);
}

.page-hero .badge {
    background: rgba(251, 192, 45, 0.22);
    color: var(--color-white);
    width: fit-content;
}

.breadcrumbs {
    display: flex;
    align-items: center;
    gap: 0.65rem;
    font-size: 0.85rem;
    letter-spacing: 0.04em;
    text-transform: uppercase;
    color: rgba(255, 255, 255, 0.75);
}

.breadcrumbs a {
    color: inherit;
    font-weight: 600;
}

.breadcrumbs span {
    opacity: 0.7;
}

.section-heading.is-left {
    text-align: left;
}

.section-heading.is-left p {
    margin-left: 0;
}

.service-detail {
    display: grid;
    gap: clamp(2rem, 5vw, 3.5rem);
    grid-template-columns: minmax(0, 1.45fr) minmax(0, 1fr);
    align-items: start;
}

.service-detail-side {
    align-self: stretch;
    display: grid;
    gap: 1.5rem;
}

@media (min-width: 1025px) {
    .service-detail--reverse {
        grid-template-columns: minmax(0, 1fr) minmax(0, 1.45fr);
    }

    .service-detail--reverse .service-detail-side {
        order: 1;
    }

    .service-detail--reverse .service-detail-content {
        order: 2;
    }
}

.service-detail-side h4 {
    font-family: var(--font-heading);
    color: var(--color-dark);
    margin: 0;
    font-size: 1.05rem;
}

.service-detail + .service-detail {
    margin-top: clamp(2.5rem, 5vw, 3.5rem);
}

.service-gallery {
    margin-top: clamp(1.5rem, 3vw, 2.25rem);
    display: grid;
    gap: clamp(0.75rem, 2vw, 1.2rem);
    grid-template-columns: repeat(4, minmax(0, 1fr));
}

.service-gallery figure {
    margin: 0;
    border-radius: 1rem;
    overflow: hidden;
    aspect-ratio: 4 / 3;
    background: rgba(0, 0, 0, 0.05);
}

.service-gallery img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
}

.service-videos {
    margin-top: clamp(2rem, 4vw, 3rem);
    display: grid;
    gap: clamp(1.5rem, 3vw, 2.5rem);
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
}

.service-videos figure {
    margin: 0;
    background: var(--color-white);
    border-radius: 1.4rem;
    padding: clamp(1rem, 2.2vw, 1.5rem);
    box-shadow: var(--shadow-medium);
    display: block;
    overflow: hidden;
}

.service-videos video,
.service-videos iframe {
    width: 100%;
    aspect-ratio: 16 / 9;
    border: none;
    border-radius: 1rem;
    background: rgba(0, 0, 0, 0.08);
    display: block;
}

@media (max-width: 900px) {
    .service-gallery {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }
}

@media (max-width: 540px) {
    .service-gallery {
        grid-template-columns: 1fr;
    }
}

.metrics-grid {
    display: grid;
    gap: 1.5rem;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
}

.metric-card {
    background: var(--color-white);
    border-radius: 1rem;
    padding: 1.5rem;
    box-shadow: var(--shadow-medium);
    border: 1px solid rgba(183, 28, 28, 0.08);
    display: grid;
    gap: 0.5rem;
    position: relative;
    overflow: hidden;
}

.metric-card span {
    font-size: 0.8rem;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    color: #888;
}

.metric-card strong {
    font-size: 2rem;
    color: var(--color-primary);
}

.metric-card p {
    margin: 0;
    color: #555;
}

.process-steps {
    display: grid;
    gap: 1.5rem;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
}

.process-step {
    background: var(--color-white);
    border-radius: 1.2rem;
    padding: 1.6rem;
    box-shadow: var(--shadow-medium);
    position: relative;
    overflow: hidden;
}

.process-step span {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 2.25rem;
    height: 2.25rem;
    border-radius: 50%;
    background: rgba(183, 28, 28, 0.12);
    color: var(--color-primary);
    font-weight: 700;
    margin-bottom: 1rem;
}

.process-step h3 {
    font-size: 1.1rem;
    margin-bottom: 0.75rem;
}

.chip-list {
    display: flex;
    flex-wrap: wrap;
    gap: 0.75rem;
    justify-content: center;
}

.chip-list a {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0.55rem 1.35rem;
    border-radius: 999px;
    border: 1px solid rgba(183, 28, 28, 0.3);
    font-weight: 600;
    letter-spacing: 0.04em;
    text-transform: uppercase;
    font-size: 0.78rem;
    transition: var(--transition-base);
}

.chip-list a:hover {
    background: var(--color-primary);
    color: var(--color-white);
}

.project-case {
    display: grid;
    gap: 1.25rem;
    padding: clamp(1.8rem, 3vw, 2.4rem);
    border-radius: 1.5rem;
    background: var(--color-white);
    box-shadow: var(--shadow-medium);
    border: 1px solid rgba(0, 0, 0, 0.05);
    position: relative;
    overflow: hidden;
}

.project-case-header {
    display: flex;
    flex-wrap: wrap;
    gap: 0.75rem;
    align-items: center;
}

.project-case-meta {
    display: grid;
    gap: 1rem;
    grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
}

.project-case-meta span {
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    color: #7a7a7a;
}

.project-case-meta strong {
    font-size: 1.05rem;
    color: var(--color-dark);
}

.project-media {
    margin-top: clamp(1.25rem, 2.8vw, 1.85rem);
    display: grid;
    gap: clamp(0.85rem, 2vw, 1.25rem);
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
}

.project-media-item {
    position: relative;
    border-radius: 1.1rem;
    overflow: hidden;
    background: rgba(0, 0, 0, 0.06);
    aspect-ratio: 16 / 9;
    box-shadow: 0 15px 30px rgba(15, 23, 42, 0.08);
}

.project-media-item img,
.project-media-item iframe,
.project-media-item video {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    border: 0;
}

.project-media-item--video::after {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(180deg, rgba(0, 0, 0, 0.15), transparent 40%);
    pointer-events: none;
}

.project-gallery {
    display: grid;
    gap: clamp(1.25rem, 3vw, 2rem);
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
}

@media (min-width: 1280px) {
    .project-gallery {
        grid-template-columns: repeat(4, 1fr);
    }
}

.project-gallery-item {
    position: relative;
    border-radius: 1.25rem;
    overflow: hidden;
    aspect-ratio: 1 / 1;
    box-shadow: var(--shadow-medium);
    background: rgba(0, 0, 0, 0.05);
}

.project-gallery-item img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.8s ease;
}

.project-gallery-item::after {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, rgba(0, 0, 0, 0.1), transparent 55%);
    pointer-events: none;
}

.project-gallery-item:hover img {
    transform: scale(1.03);
}

.testimonial-card {
    background: var(--color-white);
    border-radius: 1.5rem;
    padding: clamp(1.8rem, 3vw, 2.4rem);
    box-shadow: var(--shadow-medium);
    position: relative;
    /* Use flex so we can push the author block to the bottom and make blockquote grow */
    display: flex;
    flex-direction: column;
    gap: 1.25rem;
    overflow: hidden;
}

.testimonial-card::before {
    content: '“';
    position: absolute;
    top: 1rem;
    left: 1.4rem;
    font-size: 3rem;
    color: rgba(183, 28, 28, 0.18);
    font-family: var(--font-heading);
}

.testimonial-card::after {
    content: '';
    position: absolute;
    inset: 0 0 auto 0;
    height: 4px;
    background: linear-gradient(90deg, var(--color-primary), var(--color-accent));
    pointer-events: none;
    z-index: 1;
}

.testimonial-card blockquote {
    margin: 0;
    color: #555;
    font-size: 1rem;
    line-height: 1.7;
    /* Let the quote expand to push the author to the bottom */
    flex: 1 1 auto;
}

.testimonial-author {
    display: flex;
    flex-direction: column;
    gap: 0.25rem;
    font-weight: 600;
    /* Ensure author block stays at the bottom of the card */
    margin-top: auto;
}

/* Make sure testimonial grid items stretch to equal heights */
#galerie-projets .container {
    width: min(100% - 1.5rem, 1480px);
}

@media (min-width: 1440px) {
    #galerie-projets .container {
        width: min(100% - 3rem, 1640px);
    }
}

#temoignages-clients .grid-three,
.grid.grid-three {
    align-items: stretch;
}

.testimonial-author span {
    font-size: 0.85rem;
    color: #7a7a7a;
    font-weight: 500;
}

.partner-grid {
    display: grid;
    gap: 1.5rem;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
}

.partner-card {
    background: var(--color-white);
    align-content: start;
    padding: 1.75rem;
    box-shadow: var(--shadow-medium);
    display: grid;
    gap: 0.85rem;
    border: 1px solid rgba(0, 0, 0, 0.05);
    align-content: start;
    position: relative;
    overflow: hidden;
}

.partner-logo {
    width: 100%;
    max-width: 13rem;
    margin: 0 auto;
    aspect-ratio: 3 / 1;
    padding: 0.75rem;
    display: grid;
    place-items: center;
}

.partner-logo img {
    width: 100%;
    height: auto;
    max-height: 3.25rem;
    object-fit: contain;
    opacity: 1;
}

.partner-logo.is-colored img {
    filter: none;
    opacity: 1;
}

.partner-card span {
    font-size: 0.8rem;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: #888;
}

.partner-card strong {
    font-size: 1.2rem;
    color: var(--color-dark);
}

.partner-card p {
    margin: 0;
    color: #575757;
}

.certification-list {
    display: grid;
    gap: 1rem;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
}

.certification-list li {
    background: var(--color-white);
    border-radius: 1rem;
    padding: 1.1rem 1.25rem;
    box-shadow: var(--shadow-medium);
    list-style: none;
    display: flex;
    gap: 0.6rem;
    align-items: center;
    color: #555;
    position: relative;
    overflow: hidden;
}

.certification-list svg {
    width: 1.1rem;
    height: 1.1rem;
    color: var(--color-primary);
    flex-shrink: 0;
}

.page-hero--services {
    background-image: url('https://img.freepik.com/free-photo/two-men-builder-architect-shake-hands-construction-site_839833-31658.jpg?t=st=1761130941~exp=1761134541~hmac=713f6deb023f0156ed4ab12aff386aa14d05752c28a834146504f648f688c30e&w=1480');
}

.page-hero--projects {
    background-image: url(../img/equipeGDA.jpeg);
}

.page-hero--references {
    background-image: url('../img/Equipe-GDA.jpeg');
}

.page-hero--partners {
    background-image: url('https://images.unsplash.com/photo-1500530855697-b586d89ba3ee?auto=format&fit=crop&w=1600&q=80');
}

.page-hero--contact {
    background-image: url(../img/Equipe-GDA-2.jpeg);
}

.page-hero--legal {
    background-image: url('https://images.unsplash.com/photo-1468078809804-4c7b3e60a478?auto=format&fit=crop&w=1600&q=80');
    background-position: center;
}

.contact-summary {
    display: grid;
    gap: 1.5rem;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
}

.contact-summary .card {
    display: grid;
    gap: 0.85rem;
    align-content: start;
}

.contact-summary strong {
    font-size: 1.1rem;
    color: var(--color-dark);
}

.faq {
    display: grid;
    gap: 1rem;
}

.faq-item {
    background: var(--color-white);
    border-radius: 1rem;
    padding: 1.5rem;
    box-shadow: var(--shadow-medium);
}

.faq-item h3 {
    font-size: 1.05rem;
    margin-bottom: 0.6rem;
}

.faq-item p {
    color: #575757;
    margin: 0;
}

.legal-content {
    position: relative;
    overflow: hidden;
    display: grid;
    gap: 2.5rem;
    max-width: 860px;
}

.legal-content article {
    display: grid;
    gap: 1rem;
    padding: clamp(1.75rem, 2.4vw, 2.25rem);
    background: var(--color-white);
    border-radius: 1.25rem;
    border: 1px solid rgba(15, 23, 42, 0.08);
    box-shadow: 0 18px 36px rgba(15, 23, 42, 0.07);
    position: relative;
    overflow: hidden;
}

.legal-content article::before {
    content: "";
    position: absolute;
    inset: 0 0 auto 0;
    height: 4px;
    background: linear-gradient(90deg, var(--color-primary), var(--color-accent));
}

.legal-content h2 {
    font-size: clamp(1.25rem, 2.5vw, 1.5rem);
    color: var(--color-dark);
}

.legal-content p {
    margin: 0;
    color: #4a4a4a;
    line-height: 1.6;
}

.legal-content ul {
    margin: 0;
    padding-left: 1.15rem;
    display: grid;
    gap: 0.5rem;
    color: #4a4a4a;
}

/* Lightbox */
body.lightbox-open {
    overflow: hidden;
}

.is-lightbox-target {
    cursor: zoom-in;
    outline: none;
}

.is-lightbox-target:focus-visible {
    outline: 3px solid var(--color-primary);
    outline-offset: 3px;
}

.lightbox {
    position: fixed;
    inset: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: clamp(1.5rem, 5vw, 3rem);
    background: rgba(0, 0, 0, 0.85);
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.3s ease;
    z-index: 1600;
}

.lightbox.is-visible {
    opacity: 1;
    pointer-events: auto;
}

.lightbox__content {
    position: relative;
    width: 100%;
    max-width: min(1100px, 95vw);
}

.lightbox__image {
    width: 100%;
    max-height: calc(100vh - 5rem);
    border-radius: 1.1rem;
    box-shadow: 0 30px 60px rgba(0, 0, 0, 0.35);
    object-fit: contain;
    background: rgba(255, 255, 255, 0.05);
}

.lightbox__close {
    position: absolute;
    top: 0.75rem;
    right: 0.75rem;
    width: 2.75rem;
    height: 2.75rem;
    border-radius: 999px;
    border: none;
    background: rgba(33, 33, 33, 0.75);
    color: var(--color-white);
    font-size: 1.35rem;
    cursor: pointer;
    display: grid;
    place-items: center;
    transition: background 0.2s ease, transform 0.2s ease;
}

.lightbox__close:hover,
.lightbox__close:focus-visible {
    background: rgba(183, 28, 28, 0.85);
    transform: scale(1.05);
}

@media (max-width: 640px) {
    .lightbox__image {
        border-radius: 0.85rem;
        max-height: calc(100vh - 4rem);
    }

    .lightbox__close {
        top: 0.5rem;
        right: 0.5rem;
        width: 2.5rem;
        height: 2.5rem;
        font-size: 1.1rem;
    }
}

@media (max-width: 1024px) {
    .nav-main {
        display: none;
    }

    .nav-actions {
        display: none;
    }

    .nav-toggle {
        display: block;
    }

    .hero {
        min-height: 80vh;
        padding: 5rem 0 4rem;
    }

    .page-hero {
        padding: 5.5rem 0;
    }

    .service-detail {
        grid-template-columns: 1fr;
    }

    .service-detail-side {
        order: -1;
    }

    .project-case {
        padding: 1.75rem;
    }
}

@media (max-width: 768px) {
    .hero-stats {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }

    .values {
        padding: 2.25rem;
    }

    .values,
    .impact {
        border-radius: 1.25rem;
    }

    .footer-top {
        grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
    }

    .breadcrumbs {
        flex-wrap: wrap;
    }

    .chip-list {
        justify-content: flex-start;
    }

    .process-steps {
        grid-template-columns: 1fr;
    }

    .partner-grid {
        grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
    }

    .project-gallery {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }
}

@media (max-width: 600px) {
    .container {
        width: min(100% - 1.75rem, var(--container-width));
    }

    .hero-stats {
        grid-template-columns: 1fr;
    }

    .scroll-top {
        right: 1rem;
        bottom: 1rem;
    }

    .section-heading span {
        margin-bottom: 0.75rem;
    }

    .project-case-meta {
        grid-template-columns: 1fr;
    }

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

    .section-cta {
        margin-top: 2rem;
    }
}

@supports not (gap: 1rem) {
    .nav-links li + li {
        margin-left: 1.5rem;
    }

    .nav-actions .btn + .btn {
        margin-left: 1rem;
    }

    .mobile-menu-nav a + a {
        margin-top: 1rem;
    }

    .mobile-menu-actions .btn + .btn {
        margin-top: 0.75rem;
    }

    .hero-stats .stat + .stat {
        margin-top: 1.4rem;
    }
}