:root{--primary:#176b6b;--primary-dark:#104c4c;--background:#eef5f4;--surface:#ffffff;--text:#1f2937;--text-light:#64748b;--success:#159957;--border:#d5e2e0;--radius:8px;--shadow:0 2px 8px rgba(0,0,0,.08);}
*{margin:0;padding:0;box-sizing:border-box;}
html,body{height:100%;font-family:Segoe UI,Arial,sans-serif;background:var(--background);color:var(--text);font-size:15px;}
body{min-height:100vh;}
a{text-decoration:none;color:inherit;}
ul{list-style:none;}
img{max-width:100%;display:block;}
header {display: flex;align-items: center;justify-content: space-between;gap: 24px;padding: 16px 28px;background: #fff;border-bottom: 1px solid #e8edf2;}
header h1{font-size:26px;margin-bottom:15px;}
header nav ul{display:flex;gap:20px;}
header nav a:hover{color:var(--primary);}
header .main-nav {flex: 1;min-width: 0;}
header .main-nav ul {display:flex;align-items:center;justify-content:flex-start;flex-wrap:wrap;gap:6px;margin:0;padding: 0;list-style:none;}
header .main-nav ul li a {display:inline-flex;align-items: center;justify-content: center;padding: 11px 14px;border: 1px solid transparent;border-radius: 999px;color: #183149;font-size: 14px;font-weight: 600;text-decoration:none;white-space: nowrap;transition:background-color .2s ease,color .2s ease,border-color .2s ease,transform .2s ease;}
header .main-nav ul li a:hover {background:#f0f5f9;border-color: #e2eaf1;color: #0877bd;transform: translateY(-1px);}
header .main-nav ul li a[href*="login"] {border-color: #d7e0e8;background: #fff;}
header .main-nav ul li a[href*="register"] {padding: 12px 19px;border-color: #ffbd24;background: #ffbd24;color: #102238;font-weight: 750;box-shadow: 0 4px 12px rgb(16 34 56 / 10%);}
header .main-nav ul li a[href*="register"]:hover {background: #ffca4d;border-color: #ffca4d;color: #102238;box-shadow: 0 7px 18px rgb(16 34 56 / 16%);transform: translateY(-2px);}
header .site-logo {display: inline-flex;align-items: center;justify-content: flex-end;flex-shrink: 0;}
header .site-logo img {display:block;width:110px;height:auto;max-width:100%;object-fit:contain;}
main{padding:30px;}
footer{background:var(--surface);border-top:1px solid var(--border);padding:20px 30px;text-align:center;color:var(--text-light);}
header {display: flex;align-items: center;justify-content: space-between;gap:24px;}


.btn{display:inline-flex;align-items:center;justify-content:center;padding:10px 18px;border-radius:var(--radius);font-weight:600;border:none;cursor:pointer;}
.btn-primary{background:var(--primary);color:#fff;}
.btn-primary:hover{background:var(--primary-dark);}
.btn-success{background:var(--success);color:#fff;}
.btn-success:hover{filter:brightness(1.1);}
.hero-home{display:flex;align-items:center;justify-content:center;min-height:350px;padding:60px 30px;background:linear-gradient(135deg,var(--primary),var(--primary-dark));color:#fff;text-align:center;border-radius:var(--radius);box-shadow:var(--shadow);}
.hero-content{max-width:900px;}
.hero-content h1{font-size:42px;color:#fff;margin-bottom:25px;}
.hero-text{font-size:20px;margin-bottom:20px;line-height:1.6;}
.hero-content p{line-height:1.8;}
.hero-actions{display:flex;justify-content:center;gap:15px;margin-top:30px;}
.home-features{margin-top:40px;}
.feature-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(250px,1fr));gap:25px;}
.feature-card{display:block;color:var(--text);background:var(--surface);padding:25px;border:1px solid var(--border);border-radius:var(--radius);box-shadow:var(--shadow);}
.feature-card h2{color:var(--primary);margin-bottom:15px;}
.feature-card p{line-height:1.7;color:var(--text-light);}
.home-info{margin-top:40px;padding:30px;background:var(--surface);border-radius:var(--radius);box-shadow:var(--shadow);}
.home-info h2{margin-bottom:15px;color:var(--primary);}
.home-info p{line-height:1.8;color:var(--text-light);}
.feature-card span{display:block;margin-top:20px;color:var(--primary);font-weight:600;}
.feature-card:hover span{text-decoration:underline;}

.login-page{display:flex;align-items:center;justify-content:center;min-height:100vh;padding:30px;background:linear-gradient(135deg,var(--primary),var(--primary-dark));}
.login-card{width:100%;max-width:420px;padding:40px;background:var(--surface);border-radius:var(--radius);box-shadow:var(--shadow);}
.login-logo{text-align:center;font-size:36px;font-weight:700;color:var(--primary);margin-bottom:20px;}
.login-card h1{text-align:center;margin-bottom:10px;color:var(--text);}
.login-subtitle{text-align:center;color:var(--text-light);margin-bottom:30px;}
.login-card form{display:flex;flex-direction:column;gap:12px;}
.login-card label{font-weight:600;color:var(--text);}
.login-card input{padding:12px;border:1px solid var(--border);border-radius:var(--radius);}
.login-card input:focus{outline:none;border-color:var(--primary);}
.login-card button{margin-top:15px;}
.login-register {margin-top:20px;margin-bottom:12px;text-align:center;font-size:0.9rem;color:#666;}
.login-register a {color:#0d6efd;font-weight:600;text-decoration:none;margin-left:5px;transition:color 0.2s ease;}
.login-register a:hover {color:#084298;text-decoration:underline;}

.account-type-choice{margin:4px 0 8px;}
.account-type-choice>p{margin:0 0 12px;font-size:15px;font-weight:600;color:var(--text);}
.account-type-options{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:12px;}
.account-type-option{position:relative;display:flex;align-items:flex-start;gap:12px;min-width:0;padding:16px;border:1px solid var(--border);border-radius:12px;background:#fff;cursor:pointer;transition:border-color .2s ease,background-color .2s ease,box-shadow .2s ease,transform .2s ease;}
.account-type-option:hover{border-color:#9eb5ca;background:#f8fbfd;transform:translateY(-1px);box-shadow:0 5px 14px rgba(15,23,42,.08);}
.account-type-option input{position:absolute;width:1px;height:1px;margin:-1px;padding:0;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0;}
.account-type-option>span{display:flex;flex-direction:column;gap:5px;min-width:0;padding-left:30px;position:relative;}
.account-type-option>span::before{content:"";position:absolute;left:0;top:2px;width:18px;height:18px;border:2px solid #b7c3ce;border-radius:50%;background:#fff;box-sizing:border-box;transition:border-color .2s ease,box-shadow .2s ease,background-color .2s ease;}
.account-type-option>span::after{content:"";position:absolute;left:5px;top:7px;width:8px;height:8px;border-radius:50%;background:#fff;transform:scale(0);transition:transform .2s ease;}
.account-type-option strong{font-size:16px;color:#173a5b;line-height:1.3;}
.account-type-option small{font-size:13px;line-height:1.45;color:var(--text-light);}
.account-type-option:has(input:checked){border-color:var(--primary);background:#f1f6fa;box-shadow:0 0 0 2px rgba(31,78,121,.10);}
.account-type-option:has(input:checked)>span::before{border-color:var(--primary);background:var(--primary);box-shadow:0 0 0 3px rgba(31,78,121,.10);}
.account-type-option:has(input:checked)>span::after{transform:scale(1);}
.account-type-option:has(input:focus-visible){outline:2px solid var(--primary);outline-offset:2px;}

.login-back{display:block;text-align:center;margin-top:25px;color:var(--primary);font-weight:600;}
.password-field{position:relative}
.password-field input{width:100%;padding-right:40px}
.password-toggle{position:absolute;right:12px;top:50%;transform:translateY(-50%);width:32px!important;height:32px!important;margin:0!important;padding:5px!important;border:0;background:none;cursor:pointer;opacity:.7;display:flex;align-items:center;justify-content:center;}
.password-toggle:hover{opacity:1;}
.password-toggle svg{width:20px;height:20px;display:block;fill:none;stroke:#1f4e79;stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round;}
.password-info{margin:-15px 0 10px 0;color:#021222;font-size:0.8rem;line-height:1.3;}
.password-info ul{margin:10px 0;padding-left:12px;}
.password-info strong{font-weight:700;}
#password-strength{margin-top:15px;font-size:0.9rem;}
.password-strength-title{font-weight:600;margin-bottom:8px;}
.password-strength-bar{height:8px;background:#ddd;border-radius:5px;overflow:hidden;}
#password-strength-bar{height:100%;width:0;background:#dc3545;transition:width .3s ease,background .3s ease;}
#password-strength-text{margin-top:8px;font-weight:600;}
.password-checks{padding-left:20px;margin-top:10px;}
.password-checks li{color:#777;}
.password-checks li.valid{color:#198754;font-weight:600;}
.password-checks li.valid::before{content:'✓ ';}
.password-checks li:not(.valid)::before{content:'○ ';}
.registration-offer{margin:0 0 22px;padding:14px 16px;background:#f0f7f5;border:1px solid #c9e2da;border-radius:var(--radius);text-align:center}
.registration-offer p{margin:4px 0;color:var(--text);font-size:14px;line-height:1.5}

.alert-error{padding:12px;margin-bottom:20px;background:#fee2e2;color:#991b1b;border-radius:var(--radius);}
.sitelock-trust-seal {display:flex;justify-content:center;align-items:center;width:100%;margin-top:10px;}

.action-button{display:inline-block;padding:14px 22px;border-radius:6px;font-weight:600;text-decoration:none;transition:0.2s;}
.action-button.secondary{background:#25872b;color:#def;margin-top:20px;}
.action-button.secondary:hover{background:#31d54b;}

/* Accueil IDN Immo */
.hero-home{padding:clamp(42px,6vw,76px) 24px;min-height:380px}
.hero-content{width:100%;max-width:900px;margin:0 auto}
.hero-content h1{max-width:780px;margin:0 auto 22px;font-size:clamp(32px,4vw,46px);line-height:1.15;letter-spacing:-.5px}
.hero-content .hero-text{max-width:760px;margin:0 auto 18px;font-size:clamp(17px,2vw,20px);line-height:1.7}
.hero-content>p{margin-top:12px}
.hero-content .hero-professional{font-size:14px;line-height:1.7}
.hero-actions{flex-wrap:wrap;gap:12px;margin-top:26px}
.home-features{margin-top:32px}
.home-features>.container>h2,.home-info>.container>h2{margin-bottom:22px;font-size:clamp(22px,2.5vw,28px);line-height:1.3}
.feature-grid{gap:20px}
.feature-card{height:100%;padding:24px;transition:transform .2s ease,box-shadow .2s ease}
.feature-card h2,.feature-card h3{margin-bottom:12px;line-height:1.35}
.feature-card p{line-height:1.75}
.home-info{margin-top:28px;padding:clamp(22px,3vw,36px)}
.home-cta{margin-top:32px;padding:36px 24px;text-align:center;background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);box-shadow:var(--shadow)}
.home-cta h2{margin-bottom:16px;color:var(--primary);font-size:clamp(24px,3vw,32px);line-height:1.3}
.home-cta p{max-width:780px;margin:0 auto 12px;line-height:1.75}
.home-cta .hero-actions{margin-top:24px}

.faq-page-header{background:linear-gradient(135deg,var(--primary),var(--primary-dark));color:#fff;border-radius:var(--radius);box-shadow:var(--shadow);padding:52px 30px;text-align:center}
.faq-page-header .container{max-width:900px;margin:0 auto}
.faq-page-header h1{color:#fff;font-size:clamp(28px,4vw,42px);line-height:1.2;margin:8px 0 18px}
.faq-page-header p{color:#fff;line-height:1.8;max-width:760px;margin:0 auto}
.faq-page-header .faq-eyebrow{font-size:13px;font-weight:700;letter-spacing:.12em;text-transform:uppercase;opacity:.85}
.faq-section{margin-top:30px}
.faq-section-heading{max-width:850px;margin:0 auto 24px;text-align:center}
.faq-section-heading h2{color:var(--primary);margin-bottom:10px}
.faq-section-heading p{color:var(--text-light);line-height:1.8}
.faq-accordion{display:grid;grid-template-columns:1fr;gap:12px;max-width:1000px;margin:0 auto}
.faq-item{background:var(--surface);border:1px solid var(--border);border-radius:12px;box-shadow:var(--shadow);overflow:hidden}
.faq-item summary{position:relative;display:flex;align-items:center;min-height:64px;padding:18px 56px 18px 22px;cursor:pointer;list-style:none;font-weight:700;color:var(--text);line-height:1.5}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::after{content:"+";position:absolute;right:22px;top:50%;transform:translateY(-50%);display:flex;align-items:center;justify-content:center;width:28px;height:28px;border-radius:50%;background:var(--background);color:var(--primary);font-size:22px;font-weight:400}
.faq-item[open] summary{color:var(--primary);border-bottom:1px solid var(--border)}
.faq-item[open] summary::after{content:"−"}
.faq-answer{padding:18px 22px 22px;color:var(--text-light);line-height:1.8}
.faq-answer p+p{margin-top:12px}
.faq-item summary:focus-visible{outline:3px solid var(--primary);outline-offset:-3px}
.faq-cta{margin-top:30px;padding:40px 30px;background:var(--surface);border-radius:var(--radius);box-shadow:var(--shadow);text-align:center}
.faq-cta h2{color:var(--primary);margin-bottom:12px}
.faq-cta p{color:var(--text-light);line-height:1.8;max-width:760px;margin:0 auto}

.footer-social{display:flex;align-items:center;justify-content:center;gap:14px;width:100%;margin:12px 0}
.footer-social a{display:inline-flex;align-items:center;justify-content:center;width:40px;height:40px;border-radius:8px;color:#102238;transition:background-color .2s,color .2s}
.footer-social a:hover{background-color:#102238;color:#fff}
.footer-social svg{display:block;width:24px;height:24px}
.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}

@media(hover:hover){.feature-card:hover{transform:translateY(-2px);box-shadow:0 8px 22px rgba(0,0,0,.09)}}
@media(prefers-reduced-motion:reduce){.feature-card{transition:none}header .main-nav ul li a {transition: none;}}
@media(max-width:576px){
    .login-page{padding:20px;}.login-card{padding:25px;}.account-type-options{grid-template-columns:1fr;}.account-type-option{padding:14px;}.account-type-options{grid-template-columns:1fr;}.account-type-option{padding:14px;}.faq-page-header{padding:36px 20px}.faq-section{padding:22px 18px;margin-top:20px}.faq-item summary{padding:16px 48px 16px 16px}.faq-item summary::after{right:14px}.faq-answer{padding:16px}.faq-cta{padding:30px 20px}.faq-cta .hero-actions{flex-direction:column;align-items:stretch}header {align-items: flex-start;flex-direction: column-reverse;}header .site-logo {align-self: flex-end;}header .main-nav {width: 100%;}header .main-nav ul {justify-content: flex-start;gap: 5px;}header .main-nav ul li a {white-space: normal;}
}
@media(max-width:768px){
    header{padding:20px;}header nav ul{flex-direction:column;gap:10px;}main{padding:15px;}.hero-home{padding:40px 20px;}.hero-content h1{font-size:32px;}.hero-actions{flex-direction:column;}main>.btn,.page-actions>.btn,.action-bar>.btn{width:100%;}.hero-home{min-height:auto;padding:42px 20px}.hero-content h1{font-size:clamp(29px,7vw,36px)}.hero-actions{flex-direction:column;align-items:stretch}.hero-actions .btn{width:100%}.feature-grid{grid-template-columns:1fr;gap:16px}.home-info{padding:22px 18px}.home-cta{padding:28px 18px}
}
@media (max-width: 900px) {
    header {gap: 12px;padding: 12px 16px;}header .main-nav ul {justify-content: center;}header .main-nav ul li a {padding: 9px 11px;font-size: 13px;} header .site-logo img {width: 82px;}
}