/* Reset & Variables */
:root {
    --color-primary: #f59e0b;
    --color-primary-dark: #d97706;
    --color-secondary: #1f2937;
    --color-text: #374151;
    --color-text-light: #6b7280;
    --color-bg: #ffffff;
    --color-bg-alt: #f9fafb;
    --color-border: #e5e7eb;
    --max-width: 1200px;
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 2rem;
    --spacing-lg: 4rem;
    --spacing-xl: 6rem;
    --radius: 0.5rem;
    --shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 25px rgba(0, 0, 0, 0.1);
    --transition: 0.3s ease;
}

*, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    line-height: 1.6;
    color: var(--color-text);
    background-color: var(--color-bg);
    font-size: 16px;
}

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

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

ul {
    list-style: none;
}

/* Container */
.container {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 0 var(--spacing-sm);
}

/* Header & Navigation */
.header {
    position: sticky;
    top: 0;
    background-color: var(--color-bg);
    box-shadow: var(--shadow);
    z-index: 1000;
}

.nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--spacing-sm) var(--spacing-sm);
    min-height: 70px;
}

.nav__logo {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    font-weight: 700;
    font-size: 1.25rem;
    color: var(--color-primary);
}

.nav__logo svg {
    color: var(--color-primary);
}

.nav__toggle {
    display: flex;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: var(--spacing-xs);
}

.nav__toggle span {
    width: 25px;
    height: 3px;
    background-color: var(--color-secondary);
    transition: var(--transition);
    border-radius: 2px;
}

.nav__menu {
    position: fixed;
    top: 70px;
    left: -100%;
    width: 100%;
    height: calc(100vh - 70px);
    background-color: var(--color-bg);
    display: flex;
    flex-direction: column;
    padding: var(--spacing-md);
    gap: var(--spacing-sm);
    transition: left var(--transition);
    box-shadow: var(--shadow-lg);
}

.nav__menu.active {
    left: 0;
}

.nav__menu li a {
    display: block;
    padding: var(--spacing-sm);
    font-weight: 500;
    transition: color var(--transition);
}

.nav__menu li a:hover {
    color: var(--color-primary);
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-xs);
    padding: 0.75rem 1.5rem;
    border-radius: var(--radius);
    font-weight: 600;
    border: 2px solid transparent;
    cursor: pointer;
    transition: var(--transition);
    text-align: center;
}

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

.btn--primary:hover {
    background-color: var(--color-primary-dark);
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

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

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

.btn--large {
    padding: 1rem 2rem;
    font-size: 1.125rem;
}

/* Hero Section */
.hero {
    position: relative;
    min-height: 50vh;
    display: flex;
    align-items: center;
    overflow: hidden;
}

.hero__image {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 0;
}

.hero__image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    filter: brightness(0.6);
}

.hero__content {
    position: relative;
    z-index: 1;
    color: white;
    text-align: center;
    padding: var(--spacing-lg) var(--spacing-sm);
}

.hero__title {
    font-size: 2rem;
    font-weight: 800;
    margin-bottom: var(--spacing-sm);
    line-height: 1.2;
}

.hero__subtitle {
    font-size: 1.125rem;
    margin-bottom: var(--spacing-md);
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

.hero__cta {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
    align-items: center;
}

/* Section */
.section {
    padding: var(--spacing-lg) 0;
}

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

.section__title {
    font-size: 2rem;
    font-weight: 700;
    text-align: center;
    margin-bottom: var(--spacing-sm);
    color: var(--color-secondary);
}

.section__subtitle {
    text-align: center;
    color: var(--color-text-light);
    margin-bottom: var(--spacing-lg);
    font-size: 1.125rem;
}

/* Services */
.services__grid {
    display: grid;
    gap: var(--spacing-md);
    margin-top: var(--spacing-lg);
}

.service-card {
    background-color: var(--color-bg);
    padding: var(--spacing-md);
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    transition: var(--transition);
}

.service-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
}

.service-card__icon {
    color: var(--color-primary);
    margin-bottom: var(--spacing-sm);
}

.service-card h3 {
    font-size: 1.25rem;
    margin-bottom: var(--spacing-xs);
    color: var(--color-secondary);
}

.service-card p {
    color: var(--color-text-light);
}

/* Réalisations */
.realisations__grid {
    display: grid;
    gap: var(--spacing-md);
    margin-top: var(--spacing-lg);
}

.realisation-card {
    background-color: var(--color-bg);
    border-radius: var(--radius);
    overflow: hidden;
    box-shadow: var(--shadow);
    transition: var(--transition);
}

.realisation-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
}

.realisation-card img {
    width: 100%;
    height: 250px;
    object-fit: cover;
}

.realisation-card__content {
    padding: var(--spacing-md);
}

.realisation-card h3 {
    font-size: 1.25rem;
    margin-bottom: var(--spacing-xs);
    color: var(--color-secondary);
}

.realisation-card p {
    color: var(--color-text-light);
}

/* À propos */
.apropos__content {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-lg);
    align-items: center;
}

.apropos__text {
    max-width: 600px;
}

.apropos__text h2 {
    font-size: 2rem;
    margin-bottom: var(--spacing-sm);
    color: var(--color-secondary);
}

.lead {
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--color-primary);
    margin-bottom: var(--spacing-sm);
}

.apropos__text p {
    margin-bottom: var(--spacing-sm);
    color: var(--color-text-light);
}

.apropos__list {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
    margin-top: var(--spacing-md);
}

.apropos__list li {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    font-weight: 500;
}

.apropos__list svg {
    color: var(--color-primary);
    flex-shrink: 0;
}

.apropos__image {
    width: 100%;
    max-width: 400px;
}

.apropos__image img {
    border-radius: var(--radius);
    box-shadow: var(--shadow-lg);
}

/* Blog */
.blog__loading,
.blog__error {
    text-align: center;
    padding: var(--spacing-lg);
    color: var(--color-text-light);
}

.blog__error {
    color: #dc2626;
}

.blog__grid {
    display: grid;
    gap: var(--spacing-md);
    margin-top: var(--spacing-lg);
}

.blog-card {
    background-color: var(--color-bg);
    border-radius: var(--radius);
    overflow: hidden;
    box-shadow: var(--shadow);
    transition: var(--transition);
    display: flex;
    flex-direction: column;
}

.blog-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
}

.blog-card__image {
    width: 100%;
    height: 200px;
    overflow: hidden;
}

.blog-card__image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: var(--transition);
}

.blog-card:hover .blog-card__image img {
    transform: scale(1.05);
}

.blog-card__content {
    padding: var(--spacing-md);
    flex: 1;
    display: flex;
    flex-direction: column;
}

.blog-card__meta {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-xs);
    flex-wrap: wrap;
}

.blog-card__meta time {
    font-size: 0.875rem;
    color: var(--color-text-light);
}

.blog-card__category {
    font-size: 0.75rem;
    padding: 0.25rem 0.5rem;
    background-color: var(--color-primary);
    color: white;
    border-radius: 3px;
    font-weight: 600;
    text-transform: uppercase;
}

.blog-card__title {
    font-size: 1.25rem;
    margin-bottom: var(--spacing-sm);
    line-height: 1.3;
}

.blog-card__title a {
    color: var(--color-secondary);
    transition: color var(--transition);
}

.blog-card__title a:hover {
    color: var(--color-primary);
}

.blog-card__excerpt {
    color: var(--color-text-light);
    margin-bottom: var(--spacing-md);
    line-height: 1.6;
    flex: 1;
}

.blog-card__link {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-xs);
    color: var(--color-primary);
    font-weight: 600;
    transition: var(--transition);
    align-self: flex-start;
}

.blog-card__link:hover {
    gap: var(--spacing-sm);
}

.blog-card__link svg {
    transition: var(--transition);
}

.blog__more {
    text-align: center;
    margin-top: var(--spacing-lg);
}

/* Pagination */
.blog__pagination {
    display: flex;
    justify-content: center;
    margin-top: var(--spacing-lg);
}

.pagination {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    flex-wrap: wrap;
    justify-content: center;
}

.pagination__btn,
.pagination__number {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-xs);
    padding: 0.5rem 1rem;
    background-color: var(--color-bg);
    border: 2px solid var(--color-border);
    border-radius: var(--radius);
    cursor: pointer;
    font-weight: 600;
    color: var(--color-text);
    transition: var(--transition);
}

.pagination__btn:hover,
.pagination__number:hover {
    background-color: var(--color-primary);
    color: white;
    border-color: var(--color-primary);
}

.pagination__number--active {
    background-color: var(--color-primary);
    color: white;
    border-color: var(--color-primary);
    cursor: default;
}

.pagination__numbers {
    display: flex;
    gap: var(--spacing-xs);
}

.pagination__dots {
    padding: 0.5rem;
    color: var(--color-text-light);
}

/* Blog Detail */
.blog-detail__back {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-xs);
    padding: 0.75rem 1.5rem;
    background-color: var(--color-bg-alt);
    border: 2px solid var(--color-border);
    border-radius: var(--radius);
    cursor: pointer;
    font-weight: 600;
    color: var(--color-text);
    transition: var(--transition);
    margin-bottom: var(--spacing-lg);
}

.blog-detail__back:hover {
    background-color: var(--color-primary);
    color: white;
    border-color: var(--color-primary);
}

.blog-detail__content {
    max-width: 800px;
    margin: 0 auto;
}

.blog-detail__header {
    margin-bottom: var(--spacing-lg);
}

.blog-detail__image {
    width: 100%;
    margin-bottom: var(--spacing-md);
    border-radius: var(--radius);
    overflow: hidden;
}

.blog-detail__image img {
    width: 100%;
    height: auto;
    display: block;
}

.blog-detail__meta {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    flex-wrap: wrap;
    margin-bottom: var(--spacing-sm);
    color: var(--color-text-light);
}

.blog-detail__meta time {
    font-size: 0.875rem;
}

.blog-detail__categories {
    display: flex;
    gap: var(--spacing-xs);
}

.blog-detail__category {
    font-size: 0.75rem;
    padding: 0.25rem 0.75rem;
    background-color: var(--color-primary);
    color: white;
    border-radius: var(--radius);
    font-weight: 600;
    text-transform: uppercase;
}

.blog-detail__title {
    font-size: 2rem;
    line-height: 1.2;
    margin-bottom: var(--spacing-sm);
    color: var(--color-secondary);
}

.blog-detail__excerpt {
    font-size: 1.125rem;
    color: var(--color-text-light);
    line-height: 1.6;
    margin-bottom: var(--spacing-md);
}

.blog-detail__body {
    font-size: 1.0625rem;
    line-height: 1.8;
    color: var(--color-text);
}

.blog-detail__body h2,
.blog-detail__body h3,
.blog-detail__body h4 {
    margin-top: var(--spacing-lg);
    margin-bottom: var(--spacing-sm);
    color: var(--color-secondary);
}

.blog-detail__body h2 {
    font-size: 1.75rem;
}

.blog-detail__body h3 {
    font-size: 1.5rem;
}

.blog-detail__body h4 {
    font-size: 1.25rem;
}

.blog-detail__body p {
    margin-bottom: var(--spacing-md);
}

.blog-detail__body ul,
.blog-detail__body ol {
    margin-bottom: var(--spacing-md);
    padding-left: var(--spacing-lg);
}

.blog-detail__body li {
    margin-bottom: var(--spacing-xs);
    list-style: inherit;
}

.blog-detail__body img {
    max-width: 100%;
    height: auto;
    border-radius: var(--radius);
    margin: var(--spacing-md) 0;
}

.blog-detail__body blockquote {
    padding: var(--spacing-md);
    margin: var(--spacing-md) 0;
    border-left: 4px solid var(--color-primary);
    background-color: var(--color-bg-alt);
    border-radius: var(--radius);
    font-style: italic;
}

.blog-detail__body pre {
    background-color: var(--color-secondary);
    color: white;
    padding: var(--spacing-md);
    border-radius: var(--radius);
    overflow-x: auto;
    margin: var(--spacing-md) 0;
}

.blog-detail__body code {
    background-color: var(--color-bg-alt);
    padding: 0.125rem 0.375rem;
    border-radius: 3px;
    font-family: 'Courier New', monospace;
    font-size: 0.9em;
}

.blog-detail__body pre code {
    background-color: transparent;
    padding: 0;
}

.blog-detail__body a {
    color: var(--color-primary);
    text-decoration: underline;
}

.blog-detail__body a:hover {
    color: var(--color-primary-dark);
}

.blog-detail__footer {
    margin-top: var(--spacing-lg);
    padding-top: var(--spacing-lg);
    border-top: 2px solid var(--color-border);
}

.blog-detail__tags {
    display: flex;
    gap: var(--spacing-xs);
    flex-wrap: wrap;
    align-items: center;
}

.blog-detail__tag {
    display: inline-block;
    padding: 0.25rem 0.75rem;
    background-color: var(--color-bg-alt);
    color: var(--color-text);
    border-radius: var(--radius);
    font-size: 0.875rem;
    border: 1px solid var(--color-border);
}

/* Contact */
.contact__content {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-lg);
    margin-top: var(--spacing-lg);
}

.contact__form {
    background-color: var(--color-bg);
    padding: var(--spacing-md);
    border-radius: var(--radius);
    box-shadow: var(--shadow);
}

.form-group {
    margin-bottom: var(--spacing-md);
}

.form-group label {
    display: block;
    margin-bottom: var(--spacing-xs);
    font-weight: 600;
    color: var(--color-secondary);
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 0.75rem;
    border: 2px solid var(--color-border);
    border-radius: var(--radius);
    font-family: inherit;
    font-size: 1rem;
    transition: var(--transition);
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--color-primary);
}

.form-group textarea {
    resize: vertical;
    min-height: 120px;
}

.contact__info {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
}

.contact-card {
    display: flex;
    gap: var(--spacing-sm);
    padding: var(--spacing-md);
    background-color: var(--color-bg);
    border-radius: var(--radius);
    box-shadow: var(--shadow);
}

.contact-card svg {
    color: var(--color-primary);
    flex-shrink: 0;
}

.contact-card h3 {
    font-size: 1.125rem;
    margin-bottom: var(--spacing-xs);
    color: var(--color-secondary);
}

.contact-card p {
    color: var(--color-text-light);
}

.contact-card a {
    color: var(--color-primary);
    font-weight: 600;
}

.contact-card a:hover {
    text-decoration: underline;
}

.small {
    font-size: 0.875rem;
}

/* Footer */
.footer {
    background-color: var(--color-secondary);
    color: white;
    padding: var(--spacing-lg) 0 var(--spacing-md);
}

.footer__content {
    display: grid;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-md);
}

.footer__section h4 {
    margin-bottom: var(--spacing-sm);
    color: var(--color-primary);
}

.footer__section ul {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xs);
}

.footer__section a {
    color: rgba(255, 255, 255, 0.8);
    transition: var(--transition);
}

.footer__section a:hover {
    color: white;
}

.footer__bottom {
    text-align: center;
    padding-top: var(--spacing-md);
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    color: rgba(255, 255, 255, 0.7);
}

/* Responsive - Tablet */
@media (min-width: 640px) {
    .hero__title {
        font-size: 2.5rem;
    }

    .hero__cta {
        flex-direction: row;
        justify-content: center;
    }

    .services__grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .realisations__grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .blog__grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .contact__content {
        flex-direction: row;
        align-items: start;
    }

    .contact__form {
        flex: 1;
    }

    .contact__info {
        flex: 0 0 300px;
    }

    .footer__content {
        grid-template-columns: repeat(2, 1fr);
    }
}

/* Responsive - Desktop */
@media (min-width: 1024px) {
    .container {
        padding: 0 var(--spacing-md);
    }

    .nav__toggle {
        display: none;
    }

    .nav__menu {
        position: static;
        flex-direction: row;
        height: auto;
        width: auto;
        padding: 0;
        box-shadow: none;
        background: transparent;
    }

    .nav__menu li a {
        padding: var(--spacing-xs) var(--spacing-sm);
    }

    .hero {
        min-height: 60vh;
    }

    .hero__title {
        font-size: 3.5rem;
    }

    .hero__subtitle {
        font-size: 1.5rem;
    }

    .section {
        padding: var(--spacing-xl) 0;
    }

    .section__title {
        font-size: 2.5rem;
    }

    .services__grid {
        grid-template-columns: repeat(3, 1fr);
    }

    .realisations__grid {
        grid-template-columns: repeat(3, 1fr);
    }

    .blog__grid {
        grid-template-columns: repeat(3, 1fr);
    }

    .apropos__content {
        flex-direction: row;
        text-align: left;
    }

    .apropos__image {
        max-width: 500px;
    }

    .footer__content {
        grid-template-columns: repeat(4, 1fr);
    }
}

/* Optimisations éco-conception */
@media (prefers-reduced-motion: reduce) {
    * {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
}

/* Dark mode support */
@media (prefers-color-scheme: dark) {
    :root {
        --color-bg: #111827;
        --color-bg-alt: #1f2937;
        --color-text: #e5e7eb;
        --color-text-light: #9ca3af;
        --color-secondary: #f9fafb;
        --color-border: #374151;
    }
}

/* Print styles */
@media print {
    .header,
    .footer,
    .nav__toggle,
    .btn {
        display: none;
    }

    body {
        color: black;
        background: white;
    }
}