@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700&display=swap');

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
:root {
    --bg: #f8f9fb; --surface: #ffffff; --border: #e4e7ec;
    --text: #0f1520; --muted: #5a6478; --accent: #2563eb;
    --accent-light: #eff4ff; --radius: 12px;
}
html { scroll-behavior: smooth; }
body { font-family: 'Inter', system-ui, sans-serif; background: var(--bg); color: var(--text); line-height: 1.6; font-size: 16px; }

.sr-only { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0,0,0,0); white-space: nowrap; border: 0; }

/* FOCUS VISIBLE */
:focus-visible {
    outline: 2px solid var(--accent);
    outline-offset: 3px;
    border-radius: 4px;
}

/* HEADER / NAV */
header {
    position: sticky; top: 0; z-index: 100;
    background: rgba(248,249,251,0.92); backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--border);
}
nav {
    padding: 0; height: 64px;
    display: flex; align-items: center; justify-content: space-between;
    max-width: 900px; margin: 0 auto;
}
@media (max-width: 768px) { nav { height: auto; padding: .5rem 1.5rem; } }
.nav-brand { font-weight: 700; font-size: 1rem; letter-spacing: 0.02em; color: var(--text); text-decoration: none; display: flex; flex-direction: column; gap: 0; }
.nav-brand span { color: var(--accent); }
.nav-brand-sub { font-size: .7rem; font-weight: 400; color: var(--muted); letter-spacing: 0.06em; }
@media (max-width: 768px) { .nav-cta { display: none; } }
.nav-cta { background: var(--accent); color: #fff; padding: .45rem 1.1rem; border-radius: 8px; font-size: .875rem; font-weight: 600; text-decoration: none; transition: opacity .2s; }
.nav-cta:hover { opacity: .85; }

section { padding: clamp(4rem, 8vw, 7rem) clamp(1.5rem, 5vw, 4rem); }
.container { max-width: 900px; margin: 0 auto; }

/* HERO */
#hero { min-height: calc(100vh - 64px); display: flex; align-items: center; background: var(--surface); border-bottom: 1px solid var(--border); }
.hero-inner { display: grid; grid-template-columns: 1fr 220px; align-items: center; gap: 4rem; width: 100%; }
@media (max-width: 768px) { .hero-inner { grid-template-columns: 1fr; } .hero-photo { display: none; } }
.hero-text { max-width: 620px; }
.hero-photo { width: 220px; height: 300px; border-radius: 16px; overflow: hidden; border: 1px solid var(--border); background: var(--bg); flex-shrink: 0; }
.hero-photo img { width: 100%; height: 100%; object-fit: cover; object-position: center top; display: block; }

h1 { font-size: clamp(2.2rem, 5vw, 3.5rem); font-weight: 700; letter-spacing: -0.03em; line-height: 1.15; }
h1 em { font-style: normal; color: var(--accent); }
.hero-sub { margin-top: 1.25rem; font-size: 1.125rem; color: var(--muted); max-width: 560px; }
.hero-actions { margin-top: 2rem; display: flex; gap: 1rem; flex-wrap: wrap; }
.btn-primary { background: var(--accent); color: #fff; padding: .75rem 1.75rem; border-radius: 9px; font-size: 1rem; font-weight: 600; text-decoration: none; transition: opacity .2s, transform .15s; }
.btn-primary:hover { opacity: .88; transform: translateY(-1px); }
.btn-secondary { background: transparent; color: var(--text); border: 1.5px solid var(--border); padding: .75rem 1.75rem; border-radius: 9px; font-size: 1rem; font-weight: 600; text-decoration: none; transition: border-color .2s; }
.btn-secondary:hover { border-color: var(--accent); color: var(--accent); }

.section-label { font-size: .78rem; font-weight: 700; letter-spacing: .1em; text-transform: uppercase; color: var(--accent); margin-bottom: .75rem; }
h2 { font-size: clamp(1.6rem, 3.5vw, 2.4rem); font-weight: 700; letter-spacing: -0.025em; line-height: 1.2; margin-bottom: 1rem; }
.section-intro { color: var(--muted); max-width: 580px; font-size: 1.05rem; }

/* SERVICE CARDS */
.services-grid { margin-top: 3rem; display: grid; grid-template-columns: repeat(auto-fit, minmax(260px, 1fr)); gap: 1.5rem; }
.service-card { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); padding: 2rem; transition: box-shadow .2s, transform .2s; }
.service-card:hover { box-shadow: 0 8px 32px rgba(37,99,235,.08); transform: translateY(-3px); }
.service-icon { width: 44px; height: 44px; background: var(--accent-light); border-radius: 10px; display: flex; align-items: center; justify-content: center; font-size: 1.35rem; margin-bottom: 1.25rem; }
.service-card h3 { font-size: 1.1rem; font-weight: 700; margin-bottom: .5rem; }
.service-card p { color: var(--muted); font-size: .95rem; }

/* PARTNERS */
.partners-grid { margin-top: 2.5rem; display: grid; grid-template-columns: repeat(auto-fit, minmax(180px, 1fr)); gap: 1rem; }
.partner-card { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); padding: 1.5rem 1rem; text-align: center; transition: box-shadow .2s, transform .2s; }
.partner-card:hover { box-shadow: 0 8px 32px rgba(37,99,235,.08); transform: translateY(-3px); }
.partner-card .service-icon { margin: 0 auto 1rem; }
.partner-card h4 { font-weight: 700; margin-bottom: .4rem; font-size: .975rem; }
.partner-card p { font-size: .875rem; color: var(--muted); }

/* POUR QUI */
.targets-grid { margin-top: 2.5rem; display: grid; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); gap: 1rem; }
.target-card { background: var(--bg); border: 1px solid var(--border); border-radius: var(--radius); padding: 1.5rem; text-align: center; }
.target-icon { width: 44px; height: 44px; background: var(--accent-light); border-radius: 10px; display: flex; align-items: center; justify-content: center; font-size: 1.35rem; margin: 0 auto .75rem; }
.target-card h4 { font-weight: 700; margin-bottom: .4rem; }
.target-card p { font-size: .875rem; color: var(--muted); }

/* POURQUOI */
.args-grid { margin-top: 2.5rem; display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); gap: 1.25rem; }
.arg { display: flex; gap: 1rem; align-items: flex-start; background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); padding: 1.5rem; }
.arg-icon { flex-shrink: 0; width: 36px; height: 36px; background: var(--accent-light); border-radius: 9px; display: flex; align-items: center; justify-content: center; font-size: 1.1rem; }
.arg h4 { font-weight: 700; margin-bottom: .3rem; font-size: .975rem; }
.arg p { font-size: .875rem; color: var(--muted); }

/* CONTACT */
label .req { color: var(--accent); margin-left: .2rem; }
.checkbox-row { display: flex; align-items: flex-start; gap: .75rem; }
.checkbox-row input[type="checkbox"] { width: 16px; height: 16px; margin-top: .2rem; flex-shrink: 0; accent-color: var(--accent); cursor: pointer; }
.checkbox-row span { font-size: .875rem; color: var(--muted); }
.contact-email { display: inline-flex; align-items: center; gap: .6rem; color: var(--accent); font-weight: 600; text-decoration: none; font-size: 1rem; }
.contact-email:hover { text-decoration: underline; }
form { display: flex; flex-direction: column; gap: 1rem; }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 1rem; }
@media (max-width: 480px) { .form-row { grid-template-columns: 1fr; } }
label { font-size: .85rem; font-weight: 600; margin-bottom: .3rem; display: block; }
input[type="text"], input[type="email"], input[type="tel"], textarea {
    width: 100%; background: var(--bg); border: 1.5px solid var(--border); border-radius: 8px;
    padding: .65rem .9rem; font-size: .95rem; font-family: inherit; color: var(--text);
    transition: border-color .2s; outline: none;
}
input[type="text"]:focus, input[type="email"]:focus, input[type="tel"]:focus, textarea:focus { border-color: var(--accent); background: var(--surface); }
textarea { resize: vertical; min-height: 160px; }
.form-submit { background: var(--accent); color: #fff; padding: .75rem 1.5rem; border: none; border-radius: 9px; font-size: 1rem; font-weight: 600; cursor: pointer; font-family: inherit; transition: opacity .2s, transform .15s; align-self: flex-start; }
.form-submit:hover { opacity: .88; transform: translateY(-1px); }

/* FLOATING BUTTON */
.fab {
    position: fixed; bottom:3rem; right: 2rem; z-index: 200;
    background: var(--accent); color: #fff;
    padding: .75rem 1.25rem; border-radius: 999px;
    font-size: .9rem; font-weight: 600; font-family: inherit;
    border: none; cursor: pointer;
    box-shadow: 0 4px 20px rgba(37,99,235,.35);
    transition: opacity .2s, transform .2s;
    display: flex; align-items: center; gap: .5rem;
}
.fab:hover { opacity: .9; transform: translateY(-2px); }

/* MODAL */
.modal-overlay {
    display: none; position: fixed; inset: 0; z-index: 300;
    background: rgba(15,21,32,.45); backdrop-filter: blur(4px);
    align-items: center; justify-content: center;
}
.modal-overlay.open { display: flex; }
.modal {
    background: var(--surface); border-radius: 16px; border: 1px solid var(--border);
    padding: 2rem; width: 100%; max-width: 400px; margin: 1rem;
    box-shadow: 0 16px 48px rgba(15,21,32,.15);
}
.modal-header { display: flex; justify-content: space-between; align-items: flex-start; margin-bottom: 1.25rem; }
.modal-header h3 { font-size: 1.15rem; font-weight: 700; letter-spacing: -0.01em; }
.modal-close { background: none; border: none; cursor: pointer; font-size: 1.25rem; color: var(--muted); line-height: 1; padding: .25rem; border-radius: 4px; }
.modal-close:hover { color: var(--text); }
.modal p { font-size: .9rem; color: var(--muted); margin-bottom: 1.25rem; }
.modal label { font-size: .85rem; font-weight: 600; display: block; margin-bottom: .3rem; }
.modal input[type="tel"] { width: 100%; background: var(--bg); border: 1.5px solid var(--border); border-radius: 8px; padding: .65rem .9rem; font-size: .95rem; font-family: inherit; color: var(--text); outline: none; transition: border-color .2s; margin-bottom: 1rem; }
.modal input[type="tel"]:focus { border-color: var(--accent); background: var(--surface); }
.modal .form-submit { width: 100%; }

footer { border-top: 1px solid var(--border); padding: 1.5rem clamp(1.5rem, 5vw, 4rem); display: flex; align-items: center; justify-content: space-between; flex-wrap: wrap; gap: 1rem; background: var(--bg); }
footer p { font-size: .85rem; color: var(--muted); }
footer a { color: var(--accent); text-decoration: none; font-size: .85rem; }