:root {
    --color-brand: #1D2B33;
    --color-cta: #2B5F8A;
    --paper: #F5EFE2;
    --surface: #EFE7D7;
    --line: #C9C0AD;
    --muted: #7A7669;
    --ink: #14191C;
    --font-display: Impact, Haettenschweiler, 'Arial Narrow Bold', 'Franklin Gothic Medium', sans-serif;
    --font-mono: Consolas, 'Courier New', ui-monospace, monospace;
    --pad-l: clamp(24px, 8vw, 120px);
    --pad-r: clamp(24px, 4vw, 56px);
}

*,
*::before,
*::after {
    box-sizing: border-box;
}

html,
body {
    overflow-x: hidden;
}

body {
    background-color: var(--paper);
    color: var(--ink);
    font-size: 18px;
    line-height: 1.65;
    overflow-wrap: break-word;
    word-break: break-word;
}

img,
svg {
    max-width: 100%;
    height: auto;
    display: block;
}

.shell {
    width: 100%;
    max-width: 1320px;
    margin-inline: auto;
    padding-left: var(--pad-l);
    padding-right: var(--pad-r);
}

.skip-link {
    position: absolute;
    left: -9999px;
    top: 0;
    background-color: var(--color-brand);
    color: var(--paper);
    padding: 12px 20px;
    z-index: 100;
    text-decoration: none;
    font-size: 15px;
}

.skip-link:focus {
    left: 0;
}

.meta-line {
    font-family: var(--font-mono);
    font-size: 13px;
    line-height: 1.65;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    color: var(--muted);
    margin: 0;
}

.btn {
    display: inline-block;
    background-color: var(--color-cta);
    color: var(--paper);
    border: 1px solid var(--color-cta);
    border-radius: 0;
    padding: 14px 28px;
    font-size: 15px;
    line-height: 1.65;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.06em;
    text-decoration: none;
    cursor: pointer;
    transition: background-color 0.15s linear, border-color 0.15s linear, color 0.15s linear;
}

.btn:hover {
    background-color: var(--color-brand);
    border-color: var(--color-brand);
    color: var(--paper);
}

.btn:focus-visible {
    outline: 2px solid var(--color-brand);
    outline-offset: 2px;
}

.hero {
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
    background-color: var(--color-brand);
    background-image: url('/images/hero-bati-structure.jpg');
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
    border-bottom: 2px solid var(--color-brand);
    padding: 80px 0;
    min-height: 460px;
}

.hero-overlay {
    position: absolute;
    inset: 0;
    background: rgba(0, 0, 0, 0.55);
}

.hero-inner {
    position: relative;
    z-index: 2;
    width: 100%;
    max-width: 1320px;
    margin-inline: auto;
    padding-left: var(--pad-l);
    padding-right: var(--pad-r);
    text-align: center;
}

.hero-title {
    font-family: var(--font-display);
    font-size: clamp(52px, 7vw, 92px);
    line-height: 0.95;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: -0.01em;
    color: #fff;
    margin: 0 0 20px;
}

.hero-subtitle {
    font-size: 22px;
    line-height: 1.6;
    color: #fff;
    max-width: 62ch;
    margin: 0 auto 16px;
}

.hero .meta-line {
    color: var(--surface);
}

.hero-figure {
    font-family: var(--font-display);
    font-size: clamp(56px, 8vw, 120px);
    line-height: 0.9;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: -0.01em;
    color: #fff;
    text-shadow: 3px 3px 0 var(--color-brand);
    margin: 24px 0 0;
}

.hero-figure__label {
    font-family: var(--font-mono);
    font-size: 13px;
    line-height: 1.65;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    color: var(--surface);
    margin: 0 0 24px;
}

.hero-cta {
    display: flex;
    justify-content: center;
}

.hero h1,
.hero h2,
.hero h3,
.hero h4,
.hero p,
.hero span,
.hero label {
    color: #fff;
}

.hero .meta-line,
.hero .hero-figure__label {
    color: var(--surface);
}

.section {
    padding: 96px 0;
}

.section--surface {
    background-color: var(--surface);
}

.section-title {
    font-family: var(--font-display);
    font-size: clamp(34px, 4.2vw, 56px);
    line-height: 1.0;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: -0.01em;
    color: var(--color-brand);
    margin: 0 0 24px;
}

.section-lead {
    font-size: 22px;
    line-height: 1.6;
    color: var(--ink);
    max-width: 68ch;
    margin: 0 0 40px;
}

.prose {
    max-width: 68ch;
}

.prose p {
    margin: 0 0 24px;
}

.prose h3 {
    font-family: var(--font-display);
    font-size: clamp(24px, 2.4vw, 32px);
    line-height: 1.15;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: -0.01em;
    color: var(--color-brand);
    margin: 40px 0 16px;
}

.prose ul {
    margin: 0 0 24px;
    padding-left: 24px;
}

.prose li {
    margin-bottom: 8px;
}

.prose strong {
    font-weight: 700;
}

.article-list {
    margin: 0;
}

.article-row {
    display: grid;
    grid-template-columns: minmax(0, 320px) minmax(0, 1fr);
    gap: 32px;
    align-items: start;
    border-top: 2px solid var(--color-brand);
    padding: 32px 0;
}

.article-row__media {
    margin: 0;
    min-width: 0;
}

.article-row__media img {
    width: 100%;
    height: auto;
    border: 1px solid var(--line);
}

.article-row__body {
    min-width: 0;
}

.article-row__meta {
    margin: 0 0 12px;
    text-align: right;
}

.article-row__title {
    font-family: var(--font-display);
    font-size: clamp(26px, 2.8vw, 38px);
    line-height: 1.05;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: -0.01em;
    color: var(--color-brand);
    margin: 0 0 12px;
}

.article-row__title a {
    color: var(--color-brand);
    text-decoration: underline;
    text-decoration-thickness: 1px;
    text-underline-offset: 4px;
    transition: color 0.15s linear, text-decoration-color 0.15s linear;
}

.article-row__title a:hover {
    color: var(--ink);
    text-decoration-thickness: 2px;
    text-decoration-color: var(--line);
}

.article-row__title a:focus-visible {
    outline: 2px solid var(--color-brand);
    outline-offset: 3px;
}

.article-row__excerpt {
    font-size: 17px;
    line-height: 1.65;
    color: var(--ink);
    max-width: 68ch;
    margin: 0;
}

.figure {
    margin: 0;
    min-width: 0;
}

.figure img {
    width: 100%;
    height: auto;
    border: 1px solid var(--line);
}

.figure figcaption {
    font-family: var(--font-mono);
    font-size: 13px;
    line-height: 1.65;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    color: var(--muted);
    padding-top: 8px;
}

.bleed {
    margin-top: 40px;
    margin-bottom: 40px;
    margin-right: calc(-1 * var(--pad-r));
}

.figure-numbers {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 32px;
    border-top: 1px solid var(--line);
    border-bottom: 1px solid var(--line);
    padding: 40px 0;
}

.figure-number {
    min-width: 0;
}

.figure-number__value {
    font-family: var(--font-display);
    font-size: 72px;
    line-height: 0.9;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: -0.01em;
    color: var(--color-brand);
    text-shadow: 2px 2px 0 var(--line);
    margin: 0 0 8px;
}

.figure-number__label {
    font-family: var(--font-mono);
    font-size: 13px;
    line-height: 1.65;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    color: var(--muted);
    margin: 0 0 8px;
}

.figure-number__text {
    font-size: 16px;
    line-height: 1.65;
    color: var(--ink);
    margin: 0;
}

.exergue {
    border-top: 1px solid var(--line);
    border-bottom: 1px solid var(--line);
    padding: 24px 0;
    margin: 40px 0;
}

.exergue__value {
    font-family: var(--font-display);
    font-size: 72px;
    line-height: 0.9;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: -0.01em;
    color: var(--color-brand);
    text-shadow: 2px 2px 0 var(--line);
    margin: 0 0 6px;
}

.exergue__label {
    font-size: 17px;
    line-height: 1.65;
    color: var(--ink);
    margin: 0;
}

.table-wrap {
    width: 100%;
    max-width: 100%;
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
    margin: 0 0 40px;
}

.data-table {
    width: 100%;
    min-width: 640px;
    border-collapse: collapse;
    font-size: 16px;
    line-height: 1.65;
}

.data-table caption {
    text-align: left;
    font-family: var(--font-mono);
    font-size: 13px;
    line-height: 1.65;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    color: var(--muted);
    padding-bottom: 12px;
}

.data-table th,
.data-table td {
    text-align: left;
    vertical-align: top;
    padding: 14px 16px;
    border-bottom: 1px solid var(--line);
    color: var(--ink);
}

.data-table thead th {
    font-family: var(--font-display);
    font-size: 17px;
    font-weight: 700;
    text-transform: uppercase;
    color: var(--color-brand);
    border-bottom: 2px solid var(--color-brand);
}

.data-table tbody th {
    font-weight: 700;
    color: var(--color-brand);
}

.faq-list {
    border-top: 2px solid var(--color-brand);
}

.faq-item {
    border-bottom: 1px solid var(--line);
}

.faq-item summary {
    cursor: pointer;
    list-style: none;
    font-family: var(--font-display);
    font-size: clamp(20px, 2vw, 26px);
    line-height: 1.15;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: -0.01em;
    color: var(--color-brand);
    padding: 20px 40px 20px 0;
    position: relative;
    transition: color 0.15s linear;
}

.faq-item summary::-webkit-details-marker {
    display: none;
}

.faq-item summary::after {
    content: '+';
    position: absolute;
    right: 0;
    top: 18px;
    font-family: var(--font-mono);
    font-size: 24px;
    line-height: 1.65;
    color: var(--muted);
}

.faq-item[open] summary::after {
    content: '\00d7';
}

.faq-item summary:hover {
    color: var(--ink);
}

.faq-item summary:focus-visible {
    outline: 2px solid var(--color-brand);
    outline-offset: 3px;
}

.faq-item__content {
    max-width: 68ch;
    padding-bottom: 24px;
}

.faq-item__content p {
    margin: 0 0 16px;
}

.calc {
    display: grid;
    grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
    gap: 48px;
    align-items: start;
    margin-bottom: 40px;
}

.calc-form {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 20px;
}

.calc-field {
    display: flex;
    flex-direction: column;
    gap: 8px;
    min-width: 0;
}

.calc-field--submit {
    grid-column: 1 / -1;
}

.calc-field--submit .btn {
    width: auto;
}

.calc-field label,
.form-field label {
    font-family: var(--font-mono);
    font-size: 13px;
    line-height: 1.65;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    color: var(--muted);
}

.calc-field input,
.calc-field select,
.form-field input,
.form-field select,
.form-field textarea {
    width: 100%;
    max-width: 100%;
    height: 52px;
    padding: 0 14px;
    background-color: var(--surface);
    color: var(--ink);
    border: 1px solid var(--color-brand);
    border-radius: 0;
    font-family: inherit;
    font-size: 16px;
    line-height: 1.65;
}

.form-field textarea {
    height: auto;
    min-height: 140px;
    padding: 12px 14px;
    resize: vertical;
}

.calc-field input:focus-visible,
.calc-field select:focus-visible,
.form-field input:focus-visible,
.form-field select:focus-visible,
.form-field textarea:focus-visible {
    outline: 2px solid var(--color-brand);
    outline-offset: 2px;
}

.calc-result {
    border-top: 2px solid var(--color-brand);
    padding-top: 24px;
}

.calc-result__label {
    font-family: var(--font-mono);
    font-size: 13px;
    line-height: 1.65;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    color: var(--muted);
    margin: 0 0 8px;
}

.calc-result__value {
    font-family: var(--font-display);
    font-size: 56px;
    line-height: 0.95;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: -0.01em;
    color: var(--color-brand);
    text-shadow: 2px 2px 0 var(--line);
    margin: 0 0 16px;
    overflow-wrap: break-word;
}

.calc-result__text {
    font-size: 16px;
    line-height: 1.65;
    color: var(--ink);
    margin: 0 0 12px;
}

.calc-note {
    font-size: 15px;
    line-height: 1.65;
    color: var(--muted);
    max-width: 68ch;
    margin: 0;
}

.gallery {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: 24px;
}

.devis {
    border-top: 2px solid var(--color-brand);
}

.devis-grid {
    display: grid;
    grid-template-columns: minmax(0, 1.4fr) minmax(0, 1fr);
    gap: 48px;
    align-items: start;
}

.devis-form {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 20px;
}

.form-field {
    display: flex;
    flex-direction: column;
    gap: 8px;
    min-width: 0;
}

.form-field--full {
    grid-column: 1 / -1;
}

.form-actions {
    grid-column: 1 / -1;
}

.form-actions .btn {
    width: auto;
}

.devis-side {
    min-width: 0;
}

.devis-side .figure-number {
    padding: 24px 0;
    border-bottom: 1px solid var(--line);
}

.devis-side .meta-line {
    margin-bottom: 8px;
}

.disclaimer {
    font-size: 15px;
    line-height: 1.65;
    color: var(--muted);
    max-width: 68ch;
    margin: 40px 0 0;
}

@media (max-width: 768px) {
    .section {
        padding: 56px 0;
    }

    .hero {
        min-height: 340px;
        padding: 56px 0;
    }

    .article-row {
        grid-template-columns: minmax(0, 1fr);
        gap: 20px;
        padding: 24px 0;
    }

    .article-row__meta {
        text-align: left;
    }

    .figure-numbers {
        grid-template-columns: minmax(0, 1fr);
        gap: 24px;
        padding: 32px 0;
    }

    .calc,
    .devis-grid {
        grid-template-columns: minmax(0, 1fr);
        gap: 32px;
    }

    .calc-form,
    .devis-form {
        grid-template-columns: minmax(0, 1fr);
    }

    .bleed {
        margin-right: 0;
        margin-top: 32px;
        margin-bottom: 32px;
    }

    .data-table {
        min-width: 560px;
    }
}

@media (max-width: 480px) {
    .section {
        padding: 48px 0;
    }

    .hero-title {
        font-size: clamp(40px, 11vw, 56px);
    }

    .hero-subtitle {
        font-size: 19px;
    }

    .section-lead {
        font-size: 19px;
    }

    .btn {
        width: 100%;
    }

    .figure-number__value,
    .exergue__value {
        font-size: 56px;
    }

    .calc-result__value {
        font-size: 40px;
    }

    .data-table {
        min-width: 520px;
        font-size: 15px;
    }

    .data-table th,
    .data-table td {
        padding: 12px 12px;
    }
}

@media (prefers-reduced-motion: reduce) {
    .btn,
    .article-row__title a,
    .faq-item summary {
        transition: none;
    }
}