/* =========================================================
   Marsoa — Charte graphique v2
   Pro · Sobre · Élégant
   ========================================================= */

/* ---------- Reset minimal ---------- */
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{-webkit-text-size-adjust:100%;text-rendering:optimizeLegibility;scroll-behavior:smooth}
body{min-height:100vh;line-height:1.6}
img,picture,svg{display:block;max-width:100%;height:auto}
button,input,select,textarea{font:inherit;color:inherit}
a{color:inherit;text-decoration:none}
ul{list-style:none}

/* ---------- Tokens ---------- */
:root{
    /* Palette — nouvelle charte sobré/professionnelle */
    --primary:     #1f2937;        /* gris foncé — texte principal */
    --secondary:   #f59e0b;        /* amber/orange — accent principal */
    --accent:      #6b7280;        /* gris neutre — texte secondaire */
    --accent-dark: #4b5563;        /* gris plus foncé */
    --accent-light:#9ca3af;        /* gris plus clair */

    --paper:       #ffffff;        /* fond blanc pur */
    --paper-alt:   #f9fafb;        /* sections alternées - gris clair */
    --paper-elev:  #ffffff;        /* cartes */
    --border:      #e5e7eb;        /* séparateurs légers */
    --border-dark: #d1d5db;        /* séparateurs plus marqués */

    /* Typographie */
    --font-serif: 'Fraunces','Cormorant Garamond',Georgia,serif;
    --font-sans:  'Inter',-apple-system,BlinkMacSystemFont,'Segoe UI',sans-serif;

    /* Espacements (8-pt grid) */
    --s-1: .25rem; --s-2: .5rem;  --s-3: .75rem; --s-4: 1rem;
    --s-5: 1.5rem; --s-6: 2rem;   --s-7: 3rem;   --s-8: 4rem;
    --s-9: 6rem;   --s-10: 8rem;

    /* Mises en forme */
    --container: 1140px;
    --radius:    4px;
    --radius-lg: 8px;
    --transition: 200ms cubic-bezier(.2,.6,.2,1);
}

/* ---------- Base ---------- */
body{
    font-family: var(--font-sans);
    font-size: 17px;
    color: var(--primary);
    background: var(--paper);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

h1,h2,h3,h4{
    font-family: var(--font-serif);
    font-weight: 400;
    color: var(--primary);
    letter-spacing: -0.01em;
    line-height: 1.15;
    font-variation-settings: "opsz" 144;
}

h1{ font-size: clamp(2.5rem, 5vw, 4rem); font-weight: 400; }
h2{ font-size: clamp(1.875rem, 3.2vw, 2.5rem); }
h3{ font-size: 1.375rem; font-weight: 500; line-height: 1.3; }
h4{ font-size: 1.125rem; font-weight: 500; }

p{ color: var(--accent); line-height: 1.7; }
p + p{ margin-top: var(--s-4); }

::selection{ background: var(--primary); color: var(--paper); }

/* ---------- Container ---------- */
.container{
    width: 100%;
    max-width: var(--container);
    margin-inline: auto;
    padding-inline: var(--s-5);
}
@media (min-width: 768px){
    .container{ padding-inline: var(--s-7); }
}

/* ---------- Header ---------- */
.site-header{
    position: sticky;
    top: 0;
    z-index: 50;
    background: rgba(255,255,255,.92);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--border);
}
.nav{
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 72px;
}
.nav .brand{
    font-family: var(--font-serif);
    font-size: 1.375rem;
    font-weight: 500;
    color: var(--primary);
    letter-spacing: -0.02em;
    margin-right: auto;
}
.nav-menu{
    display: flex;
    gap: var(--s-6);
    align-items: center;
    list-style: none;
    margin: 0;
    padding: 0;
}
.nav-menu a{
    font-size: 0.975rem;
    font-weight: 500;
    color: var(--accent);
    transition: color var(--transition);
    position: relative;
}
.nav-menu a:hover,
.nav-menu a.active{
    color: var(--secondary);
}
.nav-toggle{
    display: none;
    flex-direction: column;
    background: none;
    border: none;
    cursor: pointer;
    padding: var(--s-2);
    width: 32px;
    height: 32px;
}
.nav-toggle svg{
    width: 24px;
    height: 24px;
    stroke: var(--primary);
}

/* Mobile menu */
.nav-mobile{
    display: none;
    position: absolute;
    top: 72px;
    left: 0;
    right: 0;
    background: var(--paper);
    border-bottom: 1px solid var(--border);
    padding: var(--s-4);
}
.nav-mobile ul{
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: var(--s-3);
}
.nav-mobile a{
    display: block;
    color: var(--accent);
    padding: var(--s-3) 0;
    border-bottom: 1px solid var(--border);
}

@media (max-width: 640px){
    .nav-toggle{ display: flex; }
    .nav-menu{ display: none; }
    .site-header.open .nav-mobile{ display: block; }
}

/* ---------- Hero ---------- */
.hero{
    padding: var(--s-9) var(--s-5) var(--s-8);
}
@media (min-width: 768px){
    .hero{ padding: var(--s-10) var(--s-7) var(--s-9); }
}

.hero-grid{
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--s-8);
    align-items: center;
}
@media (min-width: 768px){
    .hero-grid{ grid-template-columns: 1fr 1fr; }
}

.hero h1{
    margin-bottom: var(--s-5);
    line-height: 1.2;
}
.hero h1 em{
    font-style: normal;
    color: var(--secondary);
    font-weight: 500;
}

.eyebrow{
    display: block;
    font-size: 0.875rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--secondary);
    margin-bottom: var(--s-4);
}

.lead{
    font-size: 1.125rem;
    line-height: 1.8;
    color: var(--accent);
    margin-bottom: var(--s-6);
}

.hero-cta{
    display: flex;
    gap: var(--s-4);
    flex-wrap: wrap;
}

.hero-illustration{
    width: 100%;
    max-width: 460px;
    margin: 0 auto;
}

/* ---------- Buttons ---------- */
.btn{
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 12px 24px;
    border-radius: var(--radius-lg);
    font-weight: 600;
    font-size: 0.95rem;
    cursor: pointer;
    border: none;
    transition: all var(--transition);
    text-decoration: none;
    text-transform: none;
}

.btn-primary{
    background: var(--secondary);
    color: white !important;
    font-weight: 600;
    letter-spacing: 0.02em;
}
.btn-primary:hover{
    background: #d97706;
    transform: translateY(-2px);
    box-shadow: 0 8px 16px rgba(245, 158, 11, 0.3);
    color: white !important;
}

.btn-secondary{
    background: var(--paper-alt);
    color: var(--primary);
    border: 1px solid var(--border-dark);
}
.btn-secondary:hover{
    background: var(--border);
    border-color: var(--accent);
}

.btn-ghost{
    background: transparent;
    color: var(--secondary);
    padding: 0;
    font-weight: 600;
    text-decoration: underline;
    text-underline-offset: 4px;
}
.btn-ghost:hover{
    color: #d97706;
}

/* ---------- Stat band ---------- */
.stat-band{
    background: var(--paper-alt);
    padding: var(--s-8) var(--s-5);
}

.stat-grid{
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: var(--s-7);
    text-align: center;
}

.stat-grid .num{
    display: block;
    font-family: var(--font-serif);
    font-size: clamp(2rem, 4vw, 3.5rem);
    font-weight: 400;
    color: var(--secondary);
    line-height: 1;
    margin-bottom: var(--s-3);
}

.stat-grid .lbl{
    display: block;
    font-size: 0.95rem;
    color: var(--accent);
    font-weight: 500;
}

/* ---------- Section ---------- */
section{
    padding: var(--s-8) var(--s-5);
}
@media (min-width: 768px){
    section{ padding: var(--s-10) var(--s-7); }
}

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

.section-head{
    text-align: center;
    max-width: 720px;
    margin: 0 auto var(--s-8);
}
.section-head h2{
    margin-bottom: var(--s-4);
}
.section-head p{
    font-size: 1.05rem;
}

/* ---------- Services Grid ---------- */
.services-grid{
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: var(--s-6);
}

.service-card{
    background: var(--paper-elev);
    padding: var(--s-6);
    border-radius: var(--radius-lg);
    border: 1px solid var(--border);
    transition: all var(--transition);
}
.service-card:hover{
    border-color: var(--secondary);
    transform: translateY(-4px);
    box-shadow: 0 12px 24px rgba(31, 41, 55, 0.1);
}

.service-icon{
    width: 48px;
    height: 48px;
    margin-bottom: var(--s-5);
    color: var(--secondary);
}
.service-icon svg{
    width: 100%;
    height: 100%;
}

.service-card .num{
    display: block;
    font-family: var(--font-serif);
    font-size: 1.875rem;
    color: var(--secondary);
    margin-bottom: var(--s-3);
    line-height: 1;
}

.service-card h3{
    margin-bottom: var(--s-3);
    color: var(--primary);
}

.service-card p{
    margin-bottom: var(--s-5);
    font-size: 0.95rem;
}

/* ---------- Process ---------- */
.process-intro{
    text-align: center;
    max-width: 720px;
    margin: 0 auto var(--s-8);
}

.process-grid{
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: var(--s-7);
}

.process-step{
    display: grid;
    grid-template-columns: auto 1fr;
    gap: var(--s-6);
    align-items: flex-start;
}

.step-num{
    font-family: var(--font-serif);
    font-size: 2rem;
    font-weight: 400;
    color: var(--secondary);
    line-height: 1;
    min-width: 60px;
}

.process-step h3{
    margin-bottom: var(--s-2);
    color: var(--primary);
}

.process-step p{
    font-size: 0.95rem;
}

/* ---------- Audience ---------- */
.audience-grid{
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: var(--s-6);
}

.audience-card{
    background: var(--paper-elev);
    padding: var(--s-6);
    border-radius: var(--radius-lg);
    border: 1px solid var(--border);
    transition: all var(--transition);
}
.audience-card:hover{
    border-color: var(--secondary);
    transform: translateY(-4px);
    box-shadow: 0 12px 24px rgba(31, 41, 55, 0.1);
}

.audience-icon{
    width: 48px;
    height: 48px;
    margin-bottom: var(--s-5);
    color: var(--secondary);
}
.audience-icon svg{
    width: 100%;
    height: 100%;
}

.audience-tag{
    display: inline-block;
    font-size: 0.75rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    color: var(--secondary);
    margin-bottom: var(--s-3);
}

.audience-card h3{
    margin-bottom: var(--s-3);
    color: var(--primary);
}

.audience-card p{
    margin-bottom: var(--s-4);
    font-size: 0.95rem;
}

.audience-card ul{
    list-style: none;
    padding: 0;
    margin: 0;
}
.audience-card li{
    padding: var(--s-2) 0;
    font-size: 0.9rem;
    color: var(--accent);
    border-bottom: 1px solid var(--border);
}
.audience-card li:last-child{
    border-bottom: none;
}

/* ---------- Split layout (Approche) ---------- */
.split{
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--s-8);
    align-items: start;
}
@media (max-width: 768px){
    .split{ grid-template-columns: 1fr; }
}

.split h2{
    margin-bottom: var(--s-5);
}

.values{
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--s-5);
}

.value-item h3{
    margin-bottom: var(--s-2);
    color: var(--primary);
    font-size: 1.1rem;
}

.value-item p{
    font-size: 0.95rem;
    color: var(--accent);
}

/* ---------- CTA band ---------- */
.cta-band{
    background: linear-gradient(135deg, var(--primary) 0%, #111827 100%);
    color: white;
    text-align: center;
    padding: var(--s-8) var(--s-5);
}
@media (min-width: 768px){
    .cta-band{ padding: var(--s-10) var(--s-7); }
}

.cta-band h2{
    color: white;
    margin-bottom: var(--s-4);
}

.cta-band p{
    color: rgba(255, 255, 255, 0.85);
    max-width: 600px;
    margin: 0 auto var(--s-6);
    font-size: 1.05rem;
}

.cta-band .btn{
    margin: 0 auto;
}

/* ---------- Footer ---------- */
.site-footer{
    background: var(--primary);
    color: rgba(255, 255, 255, 0.8);
    padding: var(--s-8) var(--s-5) var(--s-6);
}
@media (min-width: 768px){
    .site-footer{ padding: var(--s-9) var(--s-7) var(--s-6); }
}

.footer-grid{
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: var(--s-8);
    margin-bottom: var(--s-7);
}

.footer-brand{
    font-family: var(--font-serif);
    font-size: 1.375rem;
    font-weight: 400;
    color: white;
    margin-bottom: var(--s-3);
}

.footer-brand-desc{
    font-size: 0.9rem;
    color: rgba(255, 255, 255, 0.7);
}

.footer-col h4{
    color: white;
    margin-bottom: var(--s-3);
    font-size: 1rem;
}

.footer-col ul{
    list-style: none;
    padding: 0;
    margin: 0;
}
.footer-col li{
    margin-bottom: var(--s-3);
}

.footer-col a{
    color: rgba(255, 255, 255, 0.7);
    font-size: 0.9rem;
    transition: color var(--transition);
}
.footer-col a:hover{
    color: var(--secondary);
}

.footer-bottom{
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    padding-top: var(--s-5);
    display: flex;
    justify-content: space-between;
    font-size: 0.85rem;
    color: rgba(255, 255, 255, 0.6);
}
@media (max-width: 640px){
    .footer-bottom{ flex-direction: column; gap: var(--s-3); }
}

/* ---------- Formulaire ---------- */
.form {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--s-5);
}

.form label {
    display: flex;
    flex-direction: column;
    gap: var(--s-2);
    font-weight: 500;
    color: var(--primary);
    font-size: 0.95rem;
}

.form input,
.form select,
.form textarea {
    padding: var(--s-3) var(--s-4);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    font-size: 0.95rem;
    font-family: var(--font-sans);
    background: white;
    color: var(--primary);
    transition: all var(--transition);
}

.form input:focus,
.form select:focus,
.form textarea:focus {
    outline: none;
    border-color: var(--secondary);
    box-shadow: 0 0 0 3px rgba(245, 158, 11, 0.1);
    background: white;
}

.form textarea {
    min-height: 160px;
    resize: vertical;
}

.form select {
    cursor: pointer;
    appearance: none;
    padding-right: 40px;
    background-image: url('data:image/svg+xml;utf8,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2"><polyline points="6 9 12 15 18 9"></polyline></svg>');
    background-repeat: no-repeat;
    background-position: right var(--s-3) center;
    background-size: 20px;
    padding-right: 40px;
}

.form .check {
    flex-direction: row;
    gap: var(--s-3);
    align-items: flex-start;
    font-weight: 400;
    padding: var(--s-4);
    background: var(--paper-alt);
    border-radius: var(--radius-lg);
}

.form .check input[type="checkbox"] {
    width: 20px;
    height: 20px;
    min-width: 20px;
    cursor: pointer;
    margin-top: 2px;
}

.form .check a {
    color: var(--secondary);
    text-decoration: underline;
    text-underline-offset: 4px;
}

.form .check a:hover {
    color: #d97706;
}

.form button {
    align-self: flex-start;
}

.service-hero {
    padding: var(--s-9) var(--s-5) var(--s-8);
}

.service-hero h1 {
    margin-bottom: var(--s-5);
    line-height: 1.2;
}

.service-hero .lead {
    font-size: 1.125rem;
    line-height: 1.8;
    color: var(--accent);
    max-width: 720px;
}

.breadcrumb {
    display: block;
    font-size: 0.875rem;
    color: var(--accent-light);
    margin-bottom: var(--s-6);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    font-weight: 500;
}

.breadcrumb a {
    color: var(--accent);
    transition: color var(--transition);
}

.breadcrumb a:hover {
    color: var(--secondary);
}

/* ---------- Service Pages Layout ---------- */
.service-body {
    display: grid;
    grid-template-columns: 1fr 300px;
    gap: var(--s-8);
    align-items: start;
}

@media (max-width: 1024px) {
    .service-body {
        grid-template-columns: 1fr;
        gap: var(--s-6);
    }
}

.sidebar {
    order: 2;
}

.sidebar-card {
    background: var(--paper-alt);
    padding: var(--s-6);
    border-radius: var(--radius-lg);
    border: 1px solid var(--border);
    position: sticky;
    top: 100px;
}

.sidebar-card h4 {
    font-size: 0.85rem;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--secondary);
    margin-bottom: var(--s-3);
    font-weight: 700;
}

.sidebar-card p {
    font-size: 0.95rem;
    color: var(--accent);
    margin-bottom: var(--s-5);
}

.sidebar-card .btn {
    margin-top: var(--s-4);
}

/* Service page main content */
.service-body > div:first-child h2 {
    margin-top: var(--s-8);
    margin-bottom: var(--s-4);
    font-size: 1.5rem;
}

.service-body > div:first-child h2:first-child {
    margin-top: 0;
}

.service-body > div:first-child h3 {
    margin-top: var(--s-6);
    margin-bottom: var(--s-3);
    font-size: 1.125rem;
}

.service-body > div:first-child p {
    margin-bottom: var(--s-4);
    line-height: 1.8;
}

.checks {
    list-style: none;
    margin: var(--s-5) 0;
    padding: 0;
}

.checks li {
    padding-left: var(--s-6);
    margin-bottom: var(--s-3);
    position: relative;
    color: var(--accent);
    line-height: 1.7;
}

.checks li::before {
    content: "✓";
    position: absolute;
    left: 0;
    color: var(--secondary);
    font-weight: 700;
    font-size: 1.1em;
}

/* ---------- Portfolio Grid ---------- */
.portfolio-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(500px, 1fr));
    gap: var(--s-9);
    padding: var(--s-8) 0;
    align-items: center;
}

@media (max-width: 1024px) {
    .portfolio-grid {
        grid-template-columns: 1fr;
        gap: var(--s-8);
    }
}

.portfolio-item {
    display: flex;
    flex-direction: column;
    gap: var(--s-5);
}

.portfolio-image {
    width: 100%;
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
    transition: transform var(--transition), box-shadow var(--transition);
}

.portfolio-image:hover {
    transform: translateY(-4px);
    box-shadow: 0 15px 40px rgba(0, 0, 0, 0.15);
}

.portfolio-image img {
    width: 100%;
    height: auto;
    display: block;
}

.portfolio-content h3 {
    color: var(--primary);
    margin-bottom: var(--s-3);
    font-size: 1.5rem;
}

.portfolio-tag {
    display: inline-block;
    background: var(--secondary);
    color: white;
    padding: 6px 14px;
    border-radius: 20px;
    font-size: 0.75rem;
    font-weight: 700;
    margin-bottom: var(--s-4);
    text-transform: uppercase;
    letter-spacing: 0.08em;
}

.portfolio-content p {
    color: var(--accent);
    font-size: 1rem;
    margin-bottom: var(--s-3);
    line-height: 1.8;
}

.portfolio-link {
    display: inline-block;
    padding: 10px 20px;
    background: var(--primary);
    color: white;
    text-decoration: none;
    border-radius: var(--radius);
    font-weight: 600;
    transition: all var(--transition);
    font-size: 0.95rem;
    width: fit-content;
}

.portfolio-link:hover {
    background: var(--secondary);
    color: var(--primary);
    transform: translateX(4px);
}

.portfolio-meta {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
    gap: var(--s-4);
    padding-top: var(--s-5);
    margin-top: var(--s-5);
    border-top: 1px solid var(--border);
}

.portfolio-meta h4 {
    font-size: 0.7rem;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--secondary);
    margin-bottom: var(--s-2);
    font-weight: 700;
}

.portfolio-meta p {
    color: var(--accent);
    font-size: 0.9rem;
    margin: 0;
}

/* ---------- Utilities ---------- */
.muted{ color: var(--accent-light); }

/* ---------- Animations ---------- */
@media (prefers-reduced-motion: no-preference) {
    * { scroll-behavior: smooth; }
}