:root {
--dark: #111827;
--text: #273142;
--muted: #6b7280;
--light: #f5f7fb;
--white: #ffffff;
--blue: #2563eb;
--blue-dark: #1d4ed8;
--cyan: #22d3ee;
--line: #e5e7eb;
--green: #22c55e;
}

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

html {
scroll-behavior: smooth;
}

body {
background: var(--white);
color: var(--text);
font-family: Arial, Helvetica, sans-serif;
line-height: 1.6;
}

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

img {
max-width: 100%;
display: block;
}

.container {
width: min(1120px, calc(100% - 40px));
margin: 0 auto;
}

/* En-tête */

.site-header {
position: relative;
z-index: 10;
background: var(--white);
border-bottom: 1px solid var(--line);
}

.header-inner {
min-height: 82px;
display: flex;
align-items: center;
}

.brand {
display: flex;
align-items: center;
gap: 12px;
}

.brand-icon {
width: 42px;
height: 42px;
display: grid;
place-items: center;
border-radius: 11px;
background: var(--dark);
color: var(--cyan);
font-size: 20px;
font-weight: 900;
}

.brand strong {
display: block;
color: var(--dark);
font-size: 19px;
line-height: 1.1;
}

.brand small {
display: block;
margin-top: 2px;
color: var(--muted);
font-size: 10px;
}

.main-nav {
margin-left: auto;
display: flex;
gap: 8px;
}

.main-nav a {
padding: 10px 18px;
border-radius: 8px;
color: #4b5563;
font-size: 14px;
font-weight: 700;
}

.main-nav a:hover,
.main-nav a.active {
background: #eff6ff;
color: var(--blue);
}

/* Général */

.eyebrow {
margin-bottom: 15px;
color: var(--blue);
font-size: 11px;
font-weight: 800;
letter-spacing: .16em;
}

.button {
display: inline-flex;
align-items: center;
justify-content: center;
min-height: 48px;
padding: 0 23px;
border-radius: 8px;
font-size: 13px;
font-weight: 800;
transition: .2s ease;
}

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

.button-primary:hover {
background: var(--blue-dark);
transform: translateY(-2px);
}

.button-secondary {
border: 1px solid #cbd5e1;
background: var(--white);
color: var(--dark);
}

.button-secondary:hover {
border-color: var(--blue);
color: var(--blue);
}

.button-light {
background: var(--white);
color: var(--dark);
}

.button-light:hover {
background: var(--cyan);
transform: translateY(-2px);
}

.section {
padding: 100px 0;
}

/* Accueil */

.hero {
overflow: hidden;
padding: 95px 0 100px;
background:
linear-gradient(135deg, #f8fbff 0%, #eef5ff 100%);
}

.hero-grid {
display: grid;
grid-template-columns: 1fr 0.85fr;
align-items: center;
gap: 80px;
}

.hero h1 {
max-width: 650px;
color: var(--dark);
font-size: clamp(44px, 6vw, 68px);
letter-spacing: -.055em;
line-height: 1.02;
}

.hero h1 span,
.page-hero h1 span {
color: var(--blue);
}

.hero-text {
max-width: 570px;
margin-top: 25px;
color: var(--muted);
font-size: 17px;
}

.hero-buttons {
display: flex;
flex-wrap: wrap;
gap: 12px;
margin-top: 32px;
}

.advantages {
display: flex;
gap: 40px;
margin-top: 55px;
}

.advantages div {
display: flex;
flex-direction: column;
}

.advantages strong {
color: var(--dark);
font-size: 21px;
}

.advantages span {
color: var(--muted);
font-size: 11px;
}

.hero-image {
position: relative;
}

.hero-image img {
position: relative;
z-index: 2;
width: 100%;
max-width: 470px;
margin: auto;
}

.image-glow {
position: absolute;
width: 330px;
height: 330px;
top: 50%;
left: 50%;
border-radius: 50%;
background: var(--cyan);
opacity: .2;
filter: blur(65px);
transform: translate(-50%, -50%);
}

/* Fonctionnalités */

.section-title {
max-width: 680px;
margin-bottom: 55px;
}

.section-title h2 {
color: var(--dark);
font-size: clamp(35px, 5vw, 52px);
letter-spacing: -.045em;
line-height: 1.05;
}

.feature-grid {
display: grid;
grid-template-columns: repeat(3, 1fr);
gap: 20px;
}

.feature-card {
position: relative;
min-height: 260px;
padding: 35px;
border: 1px solid var(--line);
border-radius: 16px;
background: var(--white);
}

.feature-card:hover {
border-color: #bfdbfe;
box-shadow: 0 18px 45px rgba(37, 99, 235, .08);
}

.feature-number {
display: inline-block;
margin-bottom: 60px;
color: var(--blue);
font-size: 12px;
font-weight: 800;
}

.feature-card h3 {
margin-bottom: 10px;
color: var(--dark);
font-size: 21px;
}

.feature-card p {
color: var(--muted);
font-size: 14px;
}

/* CTA */

.cta {
padding: 80px 0;
background: var(--dark);
color: var(--white);
}

.cta-inner {
display: flex;
align-items: center;
justify-content: space-between;
gap: 50px;
}

.cta .eyebrow {
color: var(--cyan);
}

.cta h2 {
font-size: clamp(32px, 4vw, 48px);
letter-spacing: -.04em;
}

/* Page services */

.page-hero {
padding: 90px 0;
background: #f5f8ff;
border-bottom: 1px solid var(--line);
}

.page-hero h1 {
max-width: 780px;
color: var(--dark);
font-size: clamp(45px, 6vw, 67px);
letter-spacing: -.055em;
line-height: 1;
}

.page-hero > .container > p:last-child {
max-width: 650px;
margin-top: 25px;
color: var(--muted);
font-size: 17px;
}

/* Services */

.services {
background: var(--white);
}

.service-grid {
display: grid;
grid-template-columns: repeat(3, 1fr);
gap: 20px;
}

.service-card {
position: relative;
padding: 38px 32px;
border: 1px solid var(--line);
border-radius: 18px;
background: var(--white);
}

.service-card.featured {
border-color: var(--blue);
box-shadow: 0 20px 50px rgba(37, 99, 235, .1);
}

.popular {
position: absolute;
top: 20px;
right: 20px;
padding: 5px 9px;
border-radius: 5px;
background: #dbeafe;
color: var(--blue);
font-size: 9px;
font-weight: 900;
letter-spacing: .08em;
}

.service-icon {
display: grid;
width: 45px;
height: 45px;
margin-bottom: 55px;
place-items: center;
border-radius: 10px;
background: #eff6ff;
color: var(--blue);
font-size: 12px;
font-weight: 900;
}

.service-card h2 {
margin-bottom: 12px;
color: var(--dark);
font-size: 23px;
}

.service-card > p {
min-height: 72px;
color: var(--muted);
font-size: 14px;
}

.service-card ul {
margin-top: 25px;
padding-top: 22px;
border-top: 1px solid var(--line);
list-style: none;
}

.service-card li {
position: relative;
margin: 11px 0;
padding-left: 20px;
color: #4b5563;
font-size: 13px;
}

.service-card li::before {
position: absolute;
top: 8px;
left: 0;
width: 6px;
height: 6px;
border-radius: 50%;
background: var(--green);
content: "";
}

/* Contact */

.contact-section {
padding: 0 0 100px;
}

.contact-box {
display: flex;
align-items: center;
justify-content: space-between;
gap: 50px;
padding: 55px;
border-radius: 18px;
background: #eef6ff;
}

.contact-box h2 {
color: var(--dark);
font-size: 38px;
letter-spacing: -.04em;
}

.contact-box p:last-child {
margin-top: 10px;
color: var(--muted);
}

/* Pied de page */

.site-footer {
padding: 55px 0 30px;
background: #0f172a;
color: var(--white);
}

.footer-grid {
display: grid;
grid-template-columns: 1fr 2fr auto;
gap: 50px;
}

.footer-brand strong {
font-size: 20px;
}

.footer-brand p {
margin-top: 7px;
color: #94a3b8;
font-size: 12px;
}

.footer-contact {
display: flex;
gap: 45px;
}

.footer-contact p {
color: #94a3b8;
font-size: 12px;
}

.footer-contact strong {
color: var(--white);
}

.footer-contact a:hover {
color: var(--cyan);
}

.footer-copy {
display: flex;
align-items: flex-end;
color: #64748b;
font-size: 11px;
}

/* Mobile */

@media (max-width: 850px) {
.hero-grid,
.feature-grid,
.service-grid {
grid-template-columns: 1fr;
}

.hero {
    padding-top: 70px;
}

.hero-image {
    max-width: 520px;
    margin: 0 auto;
}

.cta-inner,
.contact-box {
    align-items: flex-start;
    flex-direction: column;
}

.footer-grid {
    grid-template-columns: 1fr;
    gap: 30px;
}

.footer-contact {
    flex-wrap: wrap;
}


}

@media (max-width: 600px) {
.container {
width: min(100% - 28px, 1120px);
}

.header-inner {
    min-height: 72px;
}

.brand small {
    display: none;
}

.main-nav a {
    padding: 8px 10px;
    font-size: 12px;
}

.hero {
    padding: 65px 0 75px;
}

.hero h1 {
    font-size: 45px;
}

.hero-text {
    font-size: 15px;
}

.advantages {
    flex-wrap: wrap;
    gap: 20px 30px;
}

.section {
    padding: 75px 0;
}

.feature-card {
    min-height: auto;
}

.page-hero {
    padding: 65px 0;
}

.page-hero h1 {
    font-size: 45px;
}

.contact-box {
    padding: 35px 25px;
}

.contact-box h2 {
    font-size: 32px;
}

.footer-contact {
    display: grid;
    grid-template-columns: 1fr;
    gap: 20px;
}


}