:root{--brand:#1877f2;--dark:#0f172a;--soft:#f3f7ff;--line:#e5e7eb;--danger:#dc2626;--muted:#64748b}
*{box-sizing:border-box}
body{margin:0;background:#f5f7fb;color:#172033;font-family:Inter,Segoe UI,Arial,sans-serif}
a{color:#0b5bd3;text-decoration:none}
.container{max-width:1180px}
.ls-nav{background:rgba(255,255,255,.96);border-bottom:1px solid var(--line);position:sticky;top:0;z-index:99;backdrop-filter:blur(16px)}
.nav-inner{display:flex;align-items:center;justify-content:space-between;min-height:66px;gap:18px}
.brand{font-size:28px;font-weight:900;text-decoration:none;color:var(--dark)}
.brand span{color:var(--brand)}
.nav-links{display:flex;gap:10px;align-items:center;flex-wrap:wrap}
.nav-links a{text-decoration:none;color:#334155;font-weight:650}
.nav-friends-link{position:relative;display:inline-flex;align-items:center;gap:6px}
.nav-badge{display:inline-flex;align-items:center;justify-content:center;min-width:20px;height:20px;padding:0 6px;border-radius:999px;background:#dc2626;color:#fff;font-size:12px;font-weight:900;line-height:1}
.btn-mini{border:1px solid var(--line);padding:8px 14px;border-radius:999px;background:#fff}
.btn-mini.primary{background:var(--brand);color:#fff;border-color:var(--brand)}
.btn-mini.danger{background:#fee2e2;color:#991b1b}
.hero{background:linear-gradient(135deg,#0b5bd3,#12b2a6);color:#fff;padding:66px 0 54px}
.hero h1{font-size:52px;font-weight:900;line-height:1.05;margin-bottom:16px}
.hero p{font-size:19px;opacity:.95;max-width:640px}
.hero-phone{background:#fff;color:#172033;border-radius:28px;padding:18px;box-shadow:0 24px 60px rgba(15,23,42,.28);max-width:390px;margin-left:auto}
.hero-cover{height:112px;border-radius:18px;background:linear-gradient(135deg,#22c55e,#2563eb)}
.hero-avatar{width:88px;height:88px;border:5px solid #fff;border-radius:50%;object-fit:cover;margin-top:-44px;background:#e0e7ff}
.hero-phone h4{font-weight:900;margin:8px 0 4px}
.hero-phone p{color:#475569;font-size:15px;margin-bottom:16px}
.hero-post{height:14px;border-radius:999px;background:#e2e8f0;margin-top:10px}
.hero-post.short{width:66%}
.auth-page{padding:26px 0}
.auth-card{max-width:680px;margin:0 auto}
.auth-head{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-bottom:14px}
.auth-head h2{font-weight:900;margin:0}
.google-btn{display:flex;align-items:center;justify-content:center;gap:10px;border:1px solid var(--line);border-radius:12px;padding:11px 14px;font-weight:900;color:#172033;background:#fff;text-decoration:none}
.google-mark{display:inline-flex;align-items:center;justify-content:center;width:24px;height:24px;border-radius:50%;color:#fff;background:#ea4335;font-weight:900}
.auth-divider{display:flex;align-items:center;gap:12px;color:var(--muted);font-size:13px;margin:12px 0}
.auth-divider:before,.auth-divider:after{content:"";height:1px;background:var(--line);flex:1}
.register-grid{display:grid;grid-template-columns:1fr 1fr;gap:12px}
.register-full{grid-column:1/-1}
.cardx{background:#fff;border:1px solid var(--line);border-radius:16px;box-shadow:0 10px 30px rgba(15,23,42,.06);padding:22px;margin-bottom:18px}
.form-control,.form-select{border-radius:12px;padding:12px;border-color:#d7dee9}
.form-control:focus,.form-select:focus{border-color:var(--brand);box-shadow:0 0 0 4px rgba(24,119,242,.12)}
.btn-main{background:var(--brand);color:#fff;border:0;border-radius:12px;padding:12px 20px;font-weight:800}
.btn-soft{background:#eef5ff;color:#0b5bd3;border:0;border-radius:12px;padding:10px 16px;font-weight:800;text-decoration:none}
.feed-layout{display:grid;grid-template-columns:280px minmax(0,1fr) 300px;gap:20px;margin-top:24px;align-items:start}
.composer textarea{resize:vertical}
.post-head{display:flex;gap:12px;align-items:center}
.avatar{width:48px;height:48px;border-radius:50%;object-fit:cover;background:#dbeafe;flex:0 0 auto}
.small-avatar{width:40px;height:40px}
.post-img,.post-video{width:100%;border-radius:16px;margin-top:14px;max-height:520px;object-fit:cover;background:#e2e8f0}
.post-actions{display:flex;gap:10px;border-top:1px solid var(--line);padding-top:12px;margin-top:12px;flex-wrap:wrap}
.comment-box{display:flex;gap:8px;margin-top:10px}
.inline-comments{border-top:1px solid var(--line);margin-top:12px;padding-top:12px}
.comment-item{background:#f8fafc;border-radius:12px;margin-top:10px;padding:10px 12px}
.comment-item p{margin:2px 0;color:#334155}
.comment-item small{color:var(--muted)}
.friends-grid{display:grid;grid-template-columns:1fr 1fr;gap:18px;align-items:start}
.friends-grid .cardx:first-child{grid-row:span 2}
.contact-search-card{margin-bottom:18px}
.search-row{display:grid;grid-template-columns:minmax(0,1fr) auto;gap:10px}
.search-result{display:grid;grid-template-columns:48px minmax(0,1fr) auto;gap:12px;align-items:center;background:#f8fafc;border:1px solid var(--line);border-radius:14px;margin-top:14px;padding:12px}
.invite-box{background:#f8fafc;border:1px solid var(--line);border-radius:14px;margin-top:14px;padding:14px}
.invite-box p{margin:0 0 10px;color:#334155}
.invite-actions{display:flex;gap:10px;flex-wrap:wrap}
.join-actions{display:flex;gap:10px;flex-wrap:wrap}
.friend-row{display:grid;grid-template-columns:48px minmax(0,1fr);gap:12px;align-items:center;border-bottom:1px solid var(--line);padding:12px 0}
.friend-row:last-child{border-bottom:0}
.friend-row.action-row{grid-template-columns:48px minmax(0,1fr) auto}
.empty-text{color:var(--muted);margin:12px 0 0}
.cover{height:260px;background:linear-gradient(135deg,#2563eb,#12b2a6);border-radius:0 0 28px 28px;background-size:cover;background-position:center}
.profile-top{margin-top:-82px}
.profile-card{display:flex;align-items:flex-end;gap:18px}
.profile-avatar{width:150px;height:150px;border:6px solid #fff;border-radius:50%;object-fit:cover;background:#e0e7ff;box-shadow:0 10px 24px rgba(15,23,42,.12)}
.profile-info{flex:1;min-width:0}
.profile-info h2{font-weight:900;margin:0 0 4px}
.profile-info p{color:var(--muted);margin:0}
.profile-actions{display:flex;gap:10px;flex-wrap:wrap}
.privacy-badge{display:inline-flex;margin-top:10px;border-radius:999px;background:#dcfce7;color:#166534;padding:5px 10px;font-size:12px;font-weight:900}
.privacy-badge.locked{background:#fee2e2;color:#991b1b}
.locked-card{text-align:center;color:#475569}
.locked-card h3{font-weight:900;color:#172033}
.mini-profile{text-align:center;padding:0 0 18px;overflow:hidden}
.mini-cover{height:82px;background:linear-gradient(135deg,#2563eb,#12b2a6);background-size:cover;background-position:center}
.mini-avatar{width:92px;height:92px;border:5px solid #fff;border-radius:50%;object-fit:cover;background:#e0e7ff;margin-top:-46px}
.mini-profile h5{font-weight:900;margin:8px 16px 14px}
.qr-box{text-align:center;overflow:hidden}
.qr-box img{max-width:220px;border:10px solid #fff;box-shadow:0 12px 30px rgba(0,0,0,.12);border-radius:18px}
.suggestion-row{display:grid;grid-template-columns:40px minmax(0,1fr) auto;gap:10px;align-items:center;margin-bottom:12px}
.suggestion-row a{font-weight:700;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.edit-shell{padding:32px 0}
.settings-shell{padding:32px 0}
.settings-card{max-width:760px;margin:0 auto}
.privacy-option{display:grid;grid-template-columns:24px minmax(0,1fr);gap:12px;align-items:flex-start;border:1px solid var(--line);border-radius:14px;padding:14px;margin-top:12px;background:#f8fafc}
.privacy-option input{margin-top:4px}
.privacy-option label{cursor:pointer}
.privacy-option span{display:block;color:var(--muted);margin-top:2px}
.edit-grid{display:grid;grid-template-columns:420px minmax(0,1fr);gap:22px;align-items:start}
.edit-preview{padding:0;overflow:hidden}
.edit-cover{height:210px;background:linear-gradient(135deg,#2563eb,#12b2a6);background-size:cover;background-position:center;position:relative}
.edit-avatar{position:absolute;left:24px;bottom:-56px;width:116px;height:116px;border:6px solid #fff;border-radius:50%;object-fit:cover;background:#e0e7ff}
.edit-preview-body{padding:68px 24px 24px}
.edit-preview-body h2{font-weight:900}
.edit-preview-body p{color:var(--muted)}
.section-head{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-bottom:18px}
.section-head h3{margin:0;font-weight:900}
.eyebrow{margin:0;color:var(--brand);font-weight:900;text-transform:uppercase;font-size:12px}
.upload-grid{display:grid;grid-template-columns:1fr 1fr;gap:14px}
.form-message{display:block;margin-bottom:12px;font-weight:800}
.form-message.success{color:#15803d}
.form-message.error{color:#b91c1c}
.input-help{display:block;color:var(--muted);margin-bottom:8px}
.group-badge{background:#dcfce7;color:#166534;border-radius:999px;padding:5px 10px;font-size:12px;font-weight:800}
.ls-footer{text-align:center;color:#64748b;padding:35px 0}
@media(max-width:992px){
 .feed-layout,.edit-grid{grid-template-columns:1fr}
 .friends-grid{grid-template-columns:1fr}
 .friends-grid .cardx:first-child{grid-row:auto}
 .nav-inner{height:auto;align-items:flex-start;padding:12px}
 .hero h1{font-size:38px}
 .hero-phone{margin:12px 0 0;max-width:none}
 .profile-card{align-items:center;flex-direction:column;text-align:center}
 .profile-actions{justify-content:center}
}
@media(max-width:576px){
 .brand{font-size:24px}
 .nav-links{gap:8px}
 .btn-mini,.btn-soft,.btn-main{padding:9px 12px}
 .hero{padding:46px 0}
 .hero h1{font-size:32px}
 .auth-page{padding:16px 0}
 .register-grid{grid-template-columns:1fr;gap:10px}
 .register-full{grid-column:auto}
 .auth-head{align-items:flex-start;flex-direction:column}
 .cardx{border-radius:12px;padding:16px}
 .cover{height:210px}
 .profile-avatar{width:124px;height:124px}
 .post-actions .btn-soft{flex:1;text-align:center}
 .comment-box{flex-direction:column}
 .search-row,.search-result{grid-template-columns:1fr}
 .join-actions .btn-soft,.join-actions .btn-main{width:100%;text-align:center}
 .friend-row.action-row{grid-template-columns:44px minmax(0,1fr)}
 .friend-row.action-row .btn-soft{grid-column:2}
 .upload-grid{grid-template-columns:1fr}
 .section-head{align-items:flex-start;flex-direction:column}
}