/* ================================
   APEX Ingénierie - Styles Principaux
   ================================ */


/* ===== VARIABLES CSS ===== */
:root {
    /* Couleurs Primaires */
    --color-primary: #1a2a4d;           /* Bleu nuit profond */
    --color-primary-light: #2a3a5d;     /* Variante plus claire */
    --color-primary-dark: #0f1a2f;      /* Variante plus foncée */
    
    /* Couleur d'Accent */
    --color-accent: #33ff99;             /* Vert lime électrique */
    --color-accent-hover: #29e68a;       /* Vert lime au survol */
    --color-accent-light: rgba(51, 255, 153, 0.1); /* Vert lime transparent */
    
    /* Couleurs Neutres */
    --color-white: #ffffff;
    --color-background: #f4f6f8;         /* Gris très clair */
    --color-text-primary: #333333;       /* Gris foncé */
    --color-text-secondary: #666666;     /* Gris moyen */
    --color-text-light: #888888;         /* Gris clair */
    --color-border: #e5e8eb;             /* Bordures subtiles */
    
    /* Typographie */
    --font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    --font-weight-light: 300;
    --font-weight-regular: 400;
    --font-weight-medium: 500;
    --font-weight-semibold: 600;
    --font-weight-bold: 700;
    
    /* Espacements */
    --spacing-xs: 0.5rem;     /* 8px */
    --spacing-sm: 1rem;       /* 16px */
    --spacing-md: 1.5rem;     /* 24px */
    --spacing-lg: 2rem;       /* 32px */
    --spacing-xl: 3rem;       /* 48px */
    --spacing-2xl: 4rem;      /* 64px */
    --spacing-3xl: 6rem;      /* 96px */
    
    /* Dimensions */
    --container-max-width: 1200px;
    --container-padding: 2rem;
    
    /* Transitions */
    --transition-fast: 0.2s ease-out;
    --transition-normal: 0.3s ease-out;
    --transition-slow: 0.5s ease-out;
    
    /* Shadows */
    --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.1);
    --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 25px rgba(0, 0, 0, 0.1);
    --shadow-xl: 0 20px 40px rgba(0, 0, 0, 0.1);
    
    /* Border Radius */
    --radius-sm: 4px;
    --radius-md: 8px;
    --radius-lg: 12px;
    --radius-xl: 16px;
}


/* ===== RESET & BASE ===== */
*,
*::before,
*::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}


html {
    scroll-behavior: smooth;
    overflow-x: hidden;
}


body {
    font-family: var(--font-family);
    font-weight: var(--font-weight-regular);
    line-height: 1.6;
    color: var(--color-text-primary);
    background-color: var(--color-white);
    overflow-x: hidden;
}


/* ===== UTILITAIRES ===== */
.container {
    max-width: var(--container-max-width);
    margin: 0 auto;
    padding: 0 var(--container-padding);
}


.section {
    padding: var(--spacing-3xl) 0;
}


.section-header {
    text-align: center;
    margin-bottom: var(--spacing-2xl);
}


.section-title {
    font-size: clamp(2.5rem, 5vw, 3.5rem);
    font-weight: var(--font-weight-bold);
    color: var(--color-primary);
    margin-top: 6rem; /* augmente la marge au-dessus du titre */
    margin-bottom: var(--spacing-md);
    line-height: 1.2;
}


.section-subtitle {
    font-size: 1.25rem;
    color: var(--color-text-secondary);
    max-width: 600px;
    margin: 0 auto;
    line-height: 1.5;
}


/* ===== BOUTONS ===== */
.btn {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-xs);
    padding: 1rem 2rem;
    font-size: 1rem;
    font-weight: var(--font-weight-medium);
    text-decoration: none;
    border: 2px solid transparent;
    border-radius: var(--radius-lg);
    cursor: pointer;
    transition: all var(--transition-normal);
    position: relative;
    overflow: hidden;
}


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


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


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


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


.btn-tertiary {
    background-color: var(--color-accent);
    color: var(--color-primary);
    border-color: var(--color-accent);
}


.btn-tertiary:hover {
    background-color: transparent;
    color: var(--color-accent);
    border-color: var(--color-accent);
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}


.btn-icon {
    width: 18px;
    height: 18px;
    margin-right: 8px;
    flex-shrink: 0;
}


.btn-contact,
.btn-phone {
    display: flex;
    align-items: center;
    justify-content: center;
}


/* ===== NAVIGATION ===== */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background: transparent;
    z-index: 1000;
    transition: all var(--transition-normal);
}


.nav-container {
    max-width: var(--container-max-width);
    margin: 0 auto;
    padding: 0 var(--container-padding);
    display: flex;
    align-items: center;
    justify-content: flex-end;
    height: 80px;
}


.nav-cta-only {
    background-color: var(--color-accent);
    color: var(--color-primary);
    padding: 0.75rem 1.5rem;
    border-radius: var(--radius-md);
    font-weight: var(--font-weight-semibold);
    text-decoration: none;
    transition: all var(--transition-normal);
}


.nav-cta-only:hover {
    background-color: var(--color-accent-hover);
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}


/* ===== HERO SECTION ===== */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    overflow: hidden;
}


.hero-background {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    z-index: 1;
}


.hero-image-bg {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-image: url('../images/accueil/usine_hs_fleur.jpeg');
    background-size: cover;
    background-position: center center;
    background-repeat: no-repeat;
    background-attachment: scroll;
}


.hero-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(
        rgba(26, 42, 77, 0.35),
        rgba(26, 42, 77, 0.35)
    );
}


.hero-container {
    max-width: var(--container-max-width);
    margin: 0 auto;
    padding: 0 var(--container-padding);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    text-align: center;
    position: relative;
    z-index: 2;
}


.hero-content {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--spacing-xl);
}


.hero-logo {
    margin-bottom: 0;
    z-index: 10;
    position: relative;
    margin-top: -2rem; /* remonte le logo */
}
.hero-title {
    margin-top: -5rem; /* remonte encore plus le slogan */
}


.hero-logo-img {
    width: 400px;
    height: auto;
}





.title-line-1 {
    color: var(--color-white);
}


.hero-accent {
    color: var(--color-accent);
    position: relative;
    display: block;
}


.hero-actions {
    display: flex;
    gap: var(--spacing-md);
    justify-content: center;
}


.hero-scroll {
    position: absolute;
    bottom: var(--spacing-lg);
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--spacing-xs);
    color: var(--color-white);
    font-size: 0.9rem;
    z-index: 2;
}


.scroll-indicator {
    width: 6px;
    height: 30px;
    background-color: var(--color-accent);
    border-radius: 1px;
    animation: scrollBounce 2s ease-in-out infinite;
}


@keyframes scrollBounce {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(10px); }
}


/* ===== EXPERTISES SECTION ===== */
.expertises {
    padding: 0 0 var(--spacing-3xl) 0;
    position: relative;
    overflow: hidden;
    z-index: 2;
    margin-top: 0;
    background: transparent !important;
}


.expertises-background {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    height: 100%;
    z-index: 1;
    background: transparent !important;
}


.expertises-image-bg {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 100vh;
    background-image: url('../images/accueil/usine_hs_tvx.jpeg');
    background-size: cover;
    background-position: center top;
    background-repeat: no-repeat;
    z-index: 0;
}


.expertises-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(
        135deg, 
        rgba(255, 255, 255, 0.6) 0%, 
        rgba(244, 246, 248, 0.5) 50%,
        rgba(255, 255, 255, 0.6) 100%
    );
}


.expertises .container {
    position: relative;
    z-index: 2;
}


.expertises-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--spacing-lg);
    margin-top: var(--spacing-2xl);
}


.expertise-card {
    background-color: rgba(255, 255, 255, 0.95);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-xl);
    padding: var(--spacing-xl);
    transition: all var(--transition-normal);
    position: relative;
    overflow: hidden;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
}


.expertise-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, var(--color-accent), var(--color-primary));
    transform: scaleX(0);
    transition: transform var(--transition-normal);
}


.expertise-card:hover::before {
    transform: scaleX(1);
}


.expertise-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-xl);
    border-color: var(--color-accent);
}


.card-icon {
    width: 60px;
    height: 60px;
    background-color: var(--color-accent-light);
    border-radius: var(--radius-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: var(--spacing-md);
    transition: all var(--transition-normal);
}


.card-icon .icon {
    width: 30px;
    height: 30px;
    color: var(--color-accent);
    transition: color var(--transition-normal);
}


.expertise-card:hover .card-icon {
    background-color: var(--color-accent);
}


.expertise-card:hover .card-icon .icon {
    color: var(--color-primary);
}


.card-title {
    font-size: 1.5rem;
    font-weight: var(--font-weight-semibold);
    color: var(--color-primary);
    margin-bottom: var(--spacing-sm);
    line-height: 1.3;
}


.card-description {
    color: var(--color-text-secondary);
    margin-bottom: var(--spacing-md);
    line-height: 1.6;
}


.card-link {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    color: var(--color-accent);
    font-weight: var(--font-weight-medium);
    cursor: pointer;
    transition: all var(--transition-normal);
}


.card-link:hover {
    gap: var(--spacing-sm);
}


.card-link .arrow {
    width: 16px;
    height: 16px;
    transition: transform var(--transition-normal);
}


.card-link:hover .arrow {
    transform: translate(4px, -4px);
}


/* ===== METHODOLOGY SECTION ===== */
.methodology {
    padding: var(--spacing-3xl) 0;
    background-color: var(--color-white);
}


.methodology-process {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    gap: var(--spacing-xl);
    margin-top: var(--spacing-2xl);
    position: relative;
}


.methodology-process::before {
    content: '';
    position: absolute;
    top: 60px;
    left: 10%;
    right: 10%;
    height: 2px;
    background: linear-gradient(90deg, var(--color-accent), var(--color-primary), var(--color-accent));
    z-index: 1;
}


.process-step {
    flex: 1;
    text-align: center;
    position: relative;
    z-index: 2;
}


.step-number {
    width: 80px;
    height: 80px;
    background: linear-gradient(135deg, var(--color-accent), var(--color-primary));
    color: var(--color-white);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    font-weight: var(--font-weight-bold);
    margin: 0 auto var(--spacing-md);
    position: relative;
}


.step-number::after {
    content: '';
    position: absolute;
    top: -4px;
    left: -4px;
    right: -4px;
    bottom: -4px;
    border: 2px solid var(--color-accent-light);
    border-radius: 50%;
    animation: pulse 2s ease-in-out infinite;
}


.step-title {
    font-size: 1.5rem;
    font-weight: var(--font-weight-semibold);
    color: var(--color-primary);
    margin-bottom: var(--spacing-sm);
}


.step-description {
    color: var(--color-text-secondary);
    line-height: 1.6;
    max-width: 300px;
    margin: 0 auto;
}


/* ===== CTA SECTION ===== */
.cta {
    padding: var(--spacing-3xl) 0;
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-light) 100%);
    color: var(--color-white);
    position: relative;
    overflow: hidden;
}


.cta-background {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
}


.cta-pattern {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    opacity: 0.1;
    background-image: 
        linear-gradient(90deg, var(--color-accent) 1px, transparent 1px),
        linear-gradient(var(--color-accent) 1px, transparent 1px);
    background-size: 60px 60px;
}


.cta-content {
    text-align: center;
    position: relative;
    z-index: 2;
}


.cta-title {
    font-size: clamp(2rem, 4vw, 3rem);
    font-weight: var(--font-weight-bold);
    margin-bottom: var(--spacing-md);
    line-height: 1.2;
}


.cta-subtitle {
    font-size: 1.25rem;
    opacity: 0.9;
    margin-bottom: var(--spacing-xl);
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
    line-height: 1.6;
}


.cta-actions {
    display: flex;
    justify-content: center;
    gap: var(--spacing-md);
    flex-wrap: wrap;
}


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


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


/* ===== FOOTER ===== */
.footer {
    padding: var(--spacing-2xl) 0 var(--spacing-lg);
    background-color: var(--color-primary-dark);
    color: var(--color-white);
}

.footer .container {
    max-width: none;
    width: 100%;
    padding: 0 var(--spacing-xl);
}


.footer-content {
    display: flex;
    justify-content: flex-start;
    align-items: center;
    flex-direction: row;
    text-align: left;
    margin-bottom: var(--spacing-xl);
    width: 100%;
    gap: var(--spacing-xl);
}

.footer-brand {
    display: flex;
    align-items: center;
    gap: var(--spacing-xl);
    width: 100%;
    margin: 0;
}

.footer-logo {
    height: 160px;
    width: auto;
    filter: brightness(0) invert(1);
    flex-shrink: 0;
    margin: 0;
}

.footer-description {
    color: rgba(255, 255, 255, 0.8);
    line-height: 1.6;
    max-width: none;
    flex: 1;
    margin: 0;
}


.footer-bottom {
    display: flex;
    justify-content: center;
    align-items: center;
    padding-top: var(--spacing-lg);
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    flex-direction: column;
    gap: var(--spacing-md);
}


.footer-copyright {
    color: rgba(255, 255, 255, 0.6);
    font-size: 0.9rem;
    line-height: 1.6;
    text-align: center;
}


.footer-social {
    display: flex;
    gap: var(--spacing-md);
}


.social-link {
    width: 40px;
    height: 40px;
    background-color: rgba(255, 255, 255, 0.1);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: rgba(255, 255, 255, 0.8);
    transition: all var(--transition-normal);
}


.social-link:hover {
    background-color: var(--color-accent);
    color: var(--color-primary);
    transform: translateY(-2px);
}


.social-link svg {
    width: 20px;
    height: 20px;
}


/* ===== ANIMATIONS & ÉTATS ===== */
@media (prefers-reduced-motion: reduce) {
    *,
    *::before {
        transition: none !important;
        animation-duration: 0s !important;
        animation-delay: 0s !important;
    }
}

html {
    scroll-padding-top: 80px;
}


/* États de focus pour l'accessibilité */
button:focus,
a:focus,
input:focus,
textarea:focus {
    outline: 2px solid var(--color-accent);
    outline-offset: 2px;
}


/* ===== PAGE HEADER ===== */
.page-header {
    padding: calc(80px + var(--spacing-3xl)) 0 var(--spacing-3xl) 0;
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-light) 100%);
    color: var(--color-white);
    text-align: center;
}


.page-title {
    font-size: clamp(2.5rem, 5vw, 3.5rem);
    font-weight: var(--font-weight-bold);
    margin-bottom: var(--spacing-md);
    line-height: 1.2;
}


.page-subtitle {
    font-size: 1.25rem;
    color: rgba(255, 255, 255, 0.8);
    max-width: 600px;
    margin: 0 auto;
    line-height: 1.5;
}


/* ===== LEGAL CONTENT ===== */
.legal-content {
    padding: var(--spacing-3xl) 0;
    background-color: var(--color-white);
}


.legal-sections {
    max-width: 800px;
    margin: 0 auto;
}


.legal-section {
    margin-bottom: var(--spacing-2xl);
    padding: var(--spacing-xl);
    background-color: var(--color-background);
    border-radius: var(--radius-lg);
    border-left: 4px solid var(--color-accent);
}


.legal-section h2 {
    font-size: 1.5rem;
    font-weight: var(--font-weight-semibold);
    color: var(--color-primary);
    margin-bottom: var(--spacing-md);
}


.legal-section p {
    margin-bottom: var(--spacing-md);
    line-height: 1.6;
    color: var(--color-text-primary);
}


.legal-section p:last-child {
    margin-bottom: 0;
}


.legal-section a {
    color: var(--color-accent);
    text-decoration: none;
    transition: color var(--transition-normal);
}


.legal-section a:hover {
    color: var(--color-accent-hover);
}


.legal-actions {
    text-align: center;
    margin-top: var(--spacing-2xl);
}


/* ===== NAVIGATION LOGO FOR LEGAL PAGE ===== */
.nav-logo-link {
    display: flex;
    align-items: center;
}


.nav-logo {
    height: 50px;
    width: auto;
    transition: transform var(--transition-normal);
}


.nav-logo:hover {
    transform: scale(1.05);
}


/* ===== PAGE HEADER ===== */
.page-header {
    padding: calc(80px + var(--spacing-xl)) 0 var(--spacing-xl) 0;
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-light) 100%);
    color: var(--color-white);
    text-align: center;
}


.page-title {
    font-size: clamp(2.5rem, 5vw, 3.5rem);
    font-weight: var(--font-weight-bold);
    margin-bottom: var(--spacing-md);
    line-height: 1.2;
}


.page-subtitle {
    font-size: 1.25rem;
    color: rgba(255, 255, 255, 0.8);
    max-width: 600px;
    margin: 0 auto;
    line-height: 1.5;
}


/* ===== LEGAL CONTENT ===== */
.legal-content {
    padding: var(--spacing-3xl) 0;
    background-color: var(--color-white);
}


.legal-sections {
    max-width: 800px;
    margin: 0 auto;
}


.legal-section {
    margin-bottom: var(--spacing-2xl);
    padding: var(--spacing-xl);
    background-color: var(--color-background);
    border-radius: var(--radius-lg);
    border-left: 4px solid var(--color-accent);
}


.legal-section h2 {
    font-size: 1.5rem;
    font-weight: var(--font-weight-semibold);
    color: var(--color-primary);
    margin-bottom: var(--spacing-md);
}


.legal-section p {
    margin-bottom: var(--spacing-md);
    line-height: 1.6;
    color: var(--color-text-primary);
}


.legal-section p:last-child {
    margin-bottom: 0;
}


.legal-section a {
    color: var(--color-accent);
    text-decoration: none;
    transition: color var(--transition-normal);
}


.legal-section a:hover {
    color: var(--color-accent-hover);
}


.legal-actions {
    text-align: center;
    margin-top: var(--spacing-2xl);
}




/* ===== NAVIGATION FOR LEGAL PAGE ===== */
.nav-container-center {
    justify-content: center !important;
}

/* ===== PAGE HEADER WITHOUT NAVBAR ===== */

body.no-navbar .page-header {
    padding: var(--spacing-3xl) 0 var(--spacing-3xl) 0;
}