/* ========================================
   STYLES COMPLETS POUR A-PROPOS.HTML
   Page autonome - Ne necessite aucun CSS externe
   Date: 18/01/2026
======================================== */

/* ========================================
   1. VARIABLES CSS
======================================== */
:root {
    /* Couleurs principales */
    --color-primary: #ee7f08;
    --color-primary-light: #ff9b2d;
    --color-primary-dark: #d66f00;
    --color-text-dark: #2d2d2d;
    --color-text-medium: #5a5a5a;
    --color-text-light: #8a8a8a;
    --color-white: #ffffff;
    --color-background: #fafafa;
    --color-background-alt: #f5f5f5;
    --color-shadow: rgba(0, 0, 0, 0.08);
    --color-shadow-medium: rgba(0, 0, 0, 0.12);
    --color-shadow-strong: rgba(0, 0, 0, 0.16);
    
    /* Espacements */
    --spacing-xs: 0.75rem;
    --spacing-sm: 1.5rem;
    --spacing-md: 2rem;
    --spacing-lg: 3rem;
    --spacing-xl: 4rem;
    --spacing-xxl: 8rem;
    
    /* Typographie */
    --font-primary: 'Montserrat', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    --font-secondary: 'Comfortaa', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    --font-size-base: clamp(1rem, 1vw + 0.5rem, 1.125rem);
    --font-size-h2: clamp(1.75rem, 3vw + 1rem, 3rem);
    --line-height: 1.8;
    
    /* Transitions */
    --transition-fast: 0.2s ease;
    --transition-medium: 0.3s ease;
    --transition-slow: 0.5s ease;
    
    /* Dimensions */
    --max-width: 1200px;
    --border-radius: 15px;
    --border-radius-small: 8px;
}

/* ========================================
   2. RESET & STYLES GLOBAUX
======================================== */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-primary);
    font-size: var(--font-size-base);
    line-height: var(--line-height);
    color: var(--color-text-medium);
    background-color: var(--color-background);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

main {
    min-height: 80vh;
}

/* ========================================
   3. FIL D'ARIANE (BREADCRUMB)
======================================== */
.breadcrumb {
    padding: 1rem 2rem;
    font-size: 0.875rem;
    color: #666;
    max-width: 1200px;
    margin: 0 auto;
    min-height: 2rem;
}

.breadcrumb a {
    color: #ef7d00;
    text-decoration: none;
    transition: var(--transition-fast);
}

.breadcrumb a:hover {
    color: #d66f00;
    text-decoration: underline;
}

.breadcrumb-separator {
    margin: 0 0.5rem;
    color: #999;
}

.breadcrumb-current {
    color: #333;
    font-weight: 500;
}

/* ========================================
   4. SECTIONS
======================================== */
.section-encadré {
    padding: 4rem 2rem;
    background: #f5f7fa;
}

.section-non-encadré {
    padding: 4rem 2rem;
    background: white;
}

.container {
    max-width: var(--max-width);
    margin: 0 auto;
    width: 100%;
}

/* ========================================
   5. TYPOGRAPHIE
======================================== */
.page-title {
    font-family: var(--font-secondary);
    font-size: clamp(2rem, 4vw, 2.5rem);
    font-weight: 700;
    color: var(--color-text-dark);
    margin-bottom: 2rem;
    text-align: center;
}

.section-title {
    font-family: var(--font-secondary);
    font-size: var(--font-size-h2);
    font-weight: 700;
    color: var(--color-text-dark);
    margin-bottom: 2rem;
    text-align: center;
}

/* ========================================
   6. INTRODUCTION
======================================== */
.about-intro {
    max-width: 900px;
    margin: 0 auto 3rem auto;
    text-align: center;
}

.intro-text {
    font-size: 1.1rem;
    line-height: 1.8;
    color: var(--color-text-medium);
    margin-bottom: 1rem;
}

.intro-text strong {
    color: var(--color-text-dark);
    font-weight: 600;
}

/* ========================================
   7. SECTION ATOUTS
======================================== */
.atouts-container {
    max-width: 900px;
    margin: 3rem auto;
    display: flex;
    flex-direction: column;
    gap: 2rem;
}

.atout-item {
    display: flex;
    gap: 2rem;
    align-items: flex-start;
    padding: 2rem;
    background: white;
    border-radius: var(--border-radius);
    box-shadow: 0 4px 20px var(--color-shadow);
    transition: var(--transition-medium);
}

.atout-item:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 30px var(--color-shadow-medium);
}

.atout-number {
    font-family: var(--font-secondary);
    font-size: 3rem;
    font-weight: 700;
    color: var(--color-primary);
    line-height: 1;
    min-width: 80px;
    text-align: center;
}

.atout-content h3 {
    font-family: var(--font-secondary);
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--color-text-dark);
    margin-bottom: 0.75rem;
}

.atout-content p {
    font-size: 1rem;
    line-height: 1.7;
    color: var(--color-text-medium);
}

.atout-content strong {
    color: var(--color-primary);
    font-weight: 600;
}

/* ========================================
   8. SECTION PHILOSOPHIE
======================================== */
.philosophy-section {
    max-width: 900px;
    margin: 3rem auto;
}

.philosophy-box {
    background: white;
    padding: 3rem;
    border-radius: var(--border-radius);
    box-shadow: 0 4px 20px var(--color-shadow);
    border-left: 5px solid var(--color-primary);
}

.philosophy-quote {
    font-size: 1.2rem;
    line-height: 1.9;
    color: var(--color-text-medium);
    font-style: italic;
    margin-bottom: 1rem;
}

.philosophy-quote strong {
    color: var(--color-primary);
    font-weight: 700;
    font-style: normal;
}

/* ========================================
   9. CALL-TO-ACTION (CTA)
======================================== */
.about-cta {
    text-align: center;
    margin-top: 3rem;
}

.about-cta h2 {
    font-family: var(--font-secondary);
    font-size: 2rem;
    color: var(--color-text-dark);
    margin-bottom: 2rem;
}

.cta-buttons-small {
    display: flex;
    gap: 1.5rem;
    justify-content: center;
    flex-wrap: wrap;
}

.btn-contact,
.btn-realisations {
    display: inline-block;
    padding: 1rem 2.5rem;
    font-family: var(--font-primary);
    font-size: 1rem;
    font-weight: 600;
    text-decoration: none;
    border-radius: 50px;
    transition: var(--transition-medium);
    cursor: pointer;
}

.btn-contact {
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-light) 100%);
    color: white;
    box-shadow: 0 4px 15px rgba(238, 127, 8, 0.3);
}

.btn-contact:hover {
    transform: translateY(-3px);
    box-shadow: 0 6px 25px rgba(238, 127, 8, 0.4);
}

.btn-realisations {
    background: white;
    color: var(--color-primary);
    border: 2px solid var(--color-primary);
}

.btn-realisations:hover {
    background: var(--color-primary);
    color: white;
    transform: translateY(-3px);
}

/* ========================================
   10. RESPONSIVE - MOBILE
======================================== */
@media (max-width: 768px) {
    .breadcrumb {
        padding: 0.75rem 1rem;
        font-size: 0.8rem;
    }
    
    .section-encadré,
    .section-non-encadré {
        padding: 2.5rem 1.5rem;
    }
    
    .page-title {
        font-size: 1.75rem;
        margin-bottom: 1.5rem;
    }
    
    .section-title {
        font-size: 1.5rem;
        margin-bottom: 1.5rem;
    }
    
    .about-intro {
        margin-bottom: 2rem;
    }
    
    .intro-text {
        font-size: 1rem;
    }
    
    .atouts-container {
        gap: 1.5rem;
        margin: 2rem auto;
    }
    
    .atout-item {
        flex-direction: column;
        gap: 1rem;
        padding: 1.5rem;
    }
    
    .atout-number {
        font-size: 2.5rem;
        min-width: auto;
        text-align: left;
    }
    
    .atout-content h3 {
        font-size: 1.25rem;
    }
    
    .philosophy-box {
        padding: 2rem 1.5rem;
    }
    
    .philosophy-quote {
        font-size: 1.05rem;
    }
    
    .about-cta h2 {
        font-size: 1.5rem;
        margin-bottom: 1.5rem;
    }
    
    .cta-buttons-small {
        flex-direction: column;
        gap: 1rem;
    }
    
    .btn-contact,
    .btn-realisations {
        padding: 0.875rem 2rem;
        width: 100%;
        max-width: 300px;
    }
}

/* ========================================
   11. RESPONSIVE - TABLET
======================================== */
@media (min-width: 769px) and (max-width: 1024px) {
    .section-encadré,
    .section-non-encadré {
        padding: 3.5rem 2rem;
    }
    
    .atouts-container {
        gap: 1.75rem;
    }
    
    .atout-item {
        padding: 1.75rem;
    }
    
    .atout-number {
        font-size: 2.75rem;
    }
}

/* ========================================
   12. ACCESSIBILITY
======================================== */
@media (prefers-reduced-motion: reduce) {
    * {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
}

/* Focus visible pour accessibilité clavier */
a:focus-visible,
button:focus-visible {
    outline: 3px solid var(--color-primary);
    outline-offset: 2px;
}