/* ======================================
   Police Rounded Elegance
   ====================================== */

@font-face {
    font-family: 'Rounded Elegance';
    src: url('https://db.onlinewebfonts.com/t/21c892a7f38e340a2c73f61f1bb86c34.eot');
    src: url('https://db.onlinewebfonts.com/t/21c892a7f38e340a2c73f61f1bb86c34.eot?#iefix') format('embedded-opentype'),
         url('https://db.onlinewebfonts.com/t/21c892a7f38e340a2c73f61f1bb86c34.woff2') format('woff2'),
         url('https://db.onlinewebfonts.com/t/21c892a7f38e340a2c73f61f1bb86c34.woff') format('woff'),
         url('https://db.onlinewebfonts.com/t/21c892a7f38e340a2c73f61f1bb86c34.ttf') format('truetype');
    font-weight: normal;
    font-style: normal;
    font-display: swap;
}

/* ======================================
   Reset et styles de base
   ====================================== */

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

:root {
    /* Palette de couleurs sobres */
    --color-primary: #2c3e50;
    --color-secondary: #7f8c8d;
    --color-accent: #95a5a6;
    --color-bg: #ffffff;
    --color-bg-alt: #f8f9fa;
    --color-text: #333333;
    --color-text-light: #6c757d;
    --color-border: #dee2e6;
    --color-frame-olive: #676746;
    
    /* Typographie */
    --font-main: 'Rounded Elegance', 'Segoe UI', Tahoma, sans-serif;
    --font-heading: 'Rounded Elegance', Georgia, serif;
    
    /* Espacements */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 2rem;
    --spacing-lg: 4rem;
    --spacing-xl: 6rem;
    
    /* Autres */
    --border-radius: 4px;
    --transition: all 0.3s ease;
    --header-height: 70px;
}

body {
    font-family: var(--font-main);
    color: var(--color-text);
    line-height: 1.6;
    background-color: var(--color-bg);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    padding-top: var(--header-height);
}

img {
    max-width: 100%;
    display: block;
    height: auto;
    border-radius: 0;
}

a {
    text-decoration: none;
    color: inherit;
    transition: var(--transition);
}

/* ======================================
   Header & Navigation
   ====================================== */

header {
    background-color: var(--color-bg);
    border-bottom: 1px solid var(--color-border);
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.05);
    transform: translateY(0);
    transition: transform 0.3s ease;
}

header.header--hidden {
    transform: translateY(-100%);
}

header .container {
    max-width: 1200px;
    margin: 0 auto;
    padding: var(--spacing-sm) var(--spacing-md);
    display: grid;
    grid-template-columns: 1fr auto 1fr;
    align-items: center;
    column-gap: var(--spacing-lg);
}

.header-title {
    font-family: var(--font-heading);
    font-size: 1.6rem;
    font-weight: 600;
    color: var(--color-primary);
    text-align: center;
}

nav ul {
    list-style: none;
    display: flex;
    gap: var(--spacing-md);
}

.nav-left ul {
    justify-content: flex-start;
}

.nav-right ul {
    justify-content: flex-end;
}

nav a {
    color: var(--color-text);
    font-weight: 500;
    padding: var(--spacing-xs) var(--spacing-sm);
    border-radius: var(--border-radius);
}

nav a:hover {
    color: var(--color-primary);
    background-color: var(--color-bg-alt);
}

nav a.active {
    color: var(--color-primary);
    font-weight: 600;
}

/* ======================================
   Hero (page Réalisations)
   ====================================== */

.hero {
    width: 100%;
    height: calc(100vh - var(--header-height));
    min-height: 400px;
    background-image: url('../assets/images/hero.jpg');
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
    background-color: var(--color-bg-alt);
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
}

.hero::before {
    content: '';
    position: absolute;
    inset: 0;
    background: rgba(0, 0, 0, 0.35);
    z-index: 0;
}

.hero-content {
    position: relative;
    z-index: 1;
    text-align: center;
}

.hero-title {
    font-family: var(--font-heading);
    font-size: 3rem;
    color: white;
    margin-bottom: var(--spacing-sm);
    line-height: 1.2;
    text-shadow: 0 2px 8px rgba(0, 0, 0, 0.4);
}

.hero-subtitle {
    font-size: 1.25rem;
    color: white;
    font-weight: 500;
    letter-spacing: 0.15em;
    text-transform: lowercase;
    text-shadow: 0 1px 4px rgba(0, 0, 0, 0.4);
}

/* ======================================
   Footer
   ====================================== */

footer {
    background-color: var(--color-bg-alt);
    border-top: 1px solid var(--color-border);
    padding: var(--spacing-lg) var(--spacing-md);
    margin-top: var(--spacing-lg);
}

footer .container {
    max-width: 1200px;
    margin: 0 auto;
    text-align: center;
}

.footer-content {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
    color: var(--color-text-light);
    font-size: 0.9rem;
}

.footer-name {
    font-weight: 600;
    color: var(--color-primary);
    font-size: 1.1rem;
}

.social-links {
    display: flex;
    justify-content: center;
    gap: var(--spacing-md);
    margin-top: var(--spacing-sm);
}

.social-links a {
    color: var(--color-secondary);
    font-size: 1.2rem;
    transition: var(--transition);
}

.social-links a:hover {
    color: var(--color-primary);
    transform: translateY(-2px);
}

/* ======================================
   Main & Sections
   ====================================== */

main {
    max-width: 1200px;
    margin: 0 auto;
    padding: var(--spacing-lg) var(--spacing-md);
}

section {
    margin-bottom: var(--spacing-xl);
}

section:last-child {
    margin-bottom: 0;
}

/* Titres */
h1 {
    font-family: var(--font-heading);
    font-size: 2.5rem;
    color: var(--color-primary);
    margin-bottom: var(--spacing-md);
    line-height: 1.2;
    text-align: center;
}

h2 {
    font-family: var(--font-heading);
    font-size: 2rem;
    color: var(--color-primary);
    margin-bottom: var(--spacing-md);
    line-height: 1.3;
    text-align: left;
}

h3 {
    font-family: var(--font-heading);
    font-size: 1.5rem;
    color: var(--color-primary);
    margin-bottom: var(--spacing-sm);
    line-height: 1.4;
    text-align: left;
}

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

/* ======================================
   CTA (Call To Action)
   ====================================== */

.cta {
    display: inline-block;
    padding: var(--spacing-sm) var(--spacing-md);
    background-color: var(--color-primary);
    color: white;
    border-radius: var(--border-radius);
    font-weight: 600;
    text-align: center;
    transition: var(--transition);
    border: 2px solid var(--color-primary);
    cursor: pointer;
}

.cta:hover {
    background-color: transparent;
    color: var(--color-primary);
}

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

/* ======================================
   Sections spécifiques - Index
   ====================================== */

#presentation,
#method {
    background-color: var(--color-bg);
    padding: var(--spacing-md);
    border-radius: var(--border-radius);
}

#method {
    background-color: var(--color-bg-alt);
}

/* Section Concours */
#contest {
    background-color: var(--color-bg);
    padding: var(--spacing-md);
    border-radius: var(--border-radius);
}

.contest-content {
    display: grid;
    grid-template-columns: 1fr 2fr;
    gap: var(--spacing-md);
    align-items: center;
    margin-bottom: var(--spacing-md);
}

.contest-image img {
    width: 100%;
    height: auto;
    object-fit: cover;
}

.contest-text p {
    margin-bottom: 0;
    font-size: 1.1rem;
    line-height: 1.8;
}

.contest-results {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-md);
}

.contest-results img {
    width: 100%;
    height: auto;
    object-fit: cover;
}

.section-intro {
    font-size: 1.1rem;
    line-height: 1.8;
    color: var(--color-text);
}

/* ======================================
   Sections spécifiques - Projects (galerie)
   ====================================== */

#projects-gallery {
    width: 100vw;
    position: relative;
    left: 50%;
    right: 50%;
    margin-left: -50vw;
    margin-right: -50vw;
    padding: var(--spacing-lg) var(--spacing-md);
    box-sizing: border-box;
}

.projects-gallery-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--spacing-xl) var(--spacing-xl);
    margin: var(--spacing-lg) auto 0;
    max-width: 1100px;
}

.project-item {
    background-color: transparent;
    padding: 0;
    border-radius: 0;
    text-align: left;
    margin: 0;
}

.project-image-wrapper {
    position: relative;
    aspect-ratio: 1;
    overflow: hidden;
    margin-bottom: var(--spacing-sm);
}

.project-image-wrapper img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    border-radius: 0;
    display: block;
}

.project-image-wrapper .project-after {
    position: relative;
    z-index: 1;
}

.project-image-wrapper .project-before {
    position: absolute;
    top: 0;
    left: 0;
    z-index: 2;
    opacity: 0;
    transition: opacity 0.3s ease;
}

.project-image-wrapper:hover .project-before,
.project-image-wrapper.show-before .project-before {
    opacity: 1;
}

/* Projets avec image "avant" : curseur pointer pour indiquer le clic */
.project-item:not(.project-item--no-before) .project-image-wrapper {
    cursor: pointer;
}

/* Projets sans image "avant" : pas d'animation au survol */
.project-item--no-before .project-image-wrapper {
    cursor: default;
}

.project-item figcaption {
    font-style: normal;
    color: #000000;
    font-size: 0.85rem;
    text-align: left;
}

/* ======================================
   Sections spécifiques - Services
   ====================================== */

.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: var(--spacing-md);
    margin-top: var(--spacing-md);
}

.service-block {
    background-color: var(--color-bg-alt);
    padding: var(--spacing-md);
    border-radius: var(--border-radius);
    border: 1px solid var(--color-border);
}

.service-block__title {
    color: var(--color-primary);
    margin-bottom: var(--spacing-sm);
    font-size: 1.3rem;
}

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

.service-block ul {
    list-style: none;
    padding-left: 0;
}

.service-block ul li {
    padding: var(--spacing-xs) 0;
    color: var(--color-text);
}

.service-block ul li::before {
    content: "✓ ";
    color: var(--color-primary);
    font-weight: bold;
    margin-right: var(--spacing-xs);
}

.process-steps {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: var(--spacing-md);
    margin-top: var(--spacing-md);
}

.process-step {
    text-align: center;
    padding: var(--spacing-md);
    background-color: var(--color-bg-alt);
    border-radius: var(--border-radius);
}

.process-step__number {
    display: inline-block;
    width: 50px;
    height: 50px;
    line-height: 50px;
    background-color: var(--color-primary);
    color: white;
    border-radius: 50%;
    font-size: 1.5rem;
    font-weight: bold;
    margin-bottom: var(--spacing-sm);
}

.process-step__title {
    font-weight: 600;
    margin-bottom: var(--spacing-xs);
    color: var(--color-primary);
}

/* ======================================
   Formulaire de contact
   ====================================== */

.contact-section {
    max-width: 600px;
    margin: 0 auto;
}

.contact-info {
    background-color: var(--color-bg-alt);
    padding: var(--spacing-md);
    border-radius: var(--border-radius);
    margin-bottom: var(--spacing-md);
}

.contact-info--simple {
    max-width: 400px;
    margin: var(--spacing-md) auto 0;
    text-align: center;
}

.contact-info p {
    margin-bottom: var(--spacing-sm);
}

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

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

form {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

.form-group {
    display: flex;
    flex-direction: column;
}

label {
    font-weight: 600;
    margin-bottom: var(--spacing-xs);
    color: var(--color-primary);
}

input,
textarea {
    padding: var(--spacing-sm);
    border: 1px solid var(--color-border);
    border-radius: var(--border-radius);
    font-family: var(--font-main);
    font-size: 1rem;
    transition: var(--transition);
}

input:focus,
textarea:focus {
    outline: none;
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px rgba(44, 62, 80, 0.1);
}

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

button[type="submit"] {
    padding: var(--spacing-sm) var(--spacing-md);
    background-color: var(--color-primary);
    color: white;
    border: 2px solid var(--color-primary);
    border-radius: var(--border-radius);
    font-weight: 600;
    font-size: 1rem;
    cursor: pointer;
    transition: var(--transition);
}

button[type="submit"]:hover {
    background-color: transparent;
    color: var(--color-primary);
}

/* ======================================
   Responsive
   ====================================== */

@media (max-width: 768px) {
    :root {
        --header-height: 120px;
    }
    
    header .container {
        grid-template-columns: 1fr;
        justify-items: center;
        row-gap: var(--spacing-sm);
    }
    
    nav ul {
        flex-direction: column;
        gap: var(--spacing-xs);
        text-align: center;
    }

    .nav-left ul,
    .nav-right ul {
        justify-content: center;
    }
    
    h1 {
        font-size: 2rem;
    }
    
    h2 {
        font-size: 1.6rem;
    }
    
    h3 {
        font-size: 1.3rem;
    }
    
    main {
        padding: var(--spacing-md) var(--spacing-sm);
    }
    
    section {
        margin-bottom: var(--spacing-md);
    }
    
    .services-grid,
    .process-steps {
        grid-template-columns: 1fr;
    }
    
    .projects-gallery-grid {
        grid-template-columns: 1fr;
    }
    
    .contest-results {
        grid-template-columns: 1fr;
    }
    
    #projects-gallery {
        padding-left: var(--spacing-sm);
        padding-right: var(--spacing-sm);
    }
    
    .hero-title {
        font-size: 2rem;
    }
    
    .hero-subtitle {
        font-size: 1rem;
    }
}

@media (max-width: 480px) {
    :root {
        --spacing-lg: 2rem;
        --spacing-xl: 3rem;
        --header-height: 140px;
    }
    
    .contest-content {
        grid-template-columns: 1fr;
    }
    
    .hero-title {
        font-size: 2rem;
    }
    
    h1 {
        font-size: 1.75rem;
    }
    
    h2 {
        font-size: 1.4rem;
    }
}