/* ===== RESET & BASE ===== */
* { margin:0; padding:0; box-sizing:border-box; }
body { font-family:'Inter', sans-serif; background:#fafafa; color:#1e1e2a; line-height:1.6; }
a { text-decoration:none; color:inherit; }
.container { max-width:1200px; margin:0 auto; padding:0 20px; }
img { max-width:100%; display:block; }

/* ===== NAVBAR ===== */
.navbar { background:#fff; box-shadow:0 2px 10px rgba(0,0,0,0.05); position:sticky; top:0; z-index:1000; }
.nav-container { display:flex; justify-content:space-between; align-items:center; padding:14px 20px; max-width:1200px; margin:0 auto; }
.nav-logo a { font-size:1.6rem; font-weight:800; color:#1e1e2a; }
.nav-logo i { margin-right:6px; }
.nav-links { display:flex; list-style:none; gap:28px; align-items:center; }
.nav-links li a { font-weight:500; color:#4a4a5a; transition:0.2s; display:flex; align-items:center; gap:8px; }
.nav-links li a:hover, .nav-links li a.active { color:#e74c3c; }
.btn-nav-auth { background:#e74c3c; color:#fff !important; padding:8px 18px; border-radius:30px; transition:0.2s; }
.btn-nav-auth:hover { background:#c0392b; color:#fff !important; }
.nav-toggle { display:none; font-size:1.5rem; cursor:pointer; }

/* ===== BUTTONS ===== */
.btn { display:inline-block; padding:12px 28px; border-radius:50px; font-weight:600; border:none; cursor:pointer; transition:0.2s; font-size:1rem; }
.btn-primary { background:#e74c3c; color:#fff; }
.btn-primary:hover { background:#c0392b; transform:translateY(-2px); box-shadow:0 8px 20px rgba(231,76,60,0.3); }
.btn-secondary { background:#ecf0f1; color:#1e1e2a; }
.btn-secondary:hover { background:#d5dbdb; transform:translateY(-2px); }
.btn-large { padding:16px 40px; font-size:1.2rem; }
.btn-sm { padding:6px 16px; font-size:0.85rem; }
.btn-block { width:100%; text-align:center; }

/* ===== HERO ===== */
.hero { position:relative; background:url('https://picsum.photos/seed/hero/1600/600') center/cover no-repeat; min-height:600px; display:flex; align-items:center; text-align:center; }
.hero-overlay { position:absolute; inset:0; background:rgba(0,0,0,0.5); }
.hero-content { position:relative; z-index:2; max-width:700px; margin:0 auto; color:#fff; padding:20px; }
.hero-content h1 { font-size:3.5rem; font-weight:800; margin-bottom:20px; }
.hero-content h1 span { color:#e74c3c; }
.hero-content p { font-size:1.2rem; opacity:0.9; margin-bottom:30px; }
.hero-buttons { display:flex; gap:16px; justify-content:center; flex-wrap:wrap; }
.hero-stats { display:flex; gap:40px; justify-content:center; margin-top:40px; }
.hero-stats div { font-size:1rem; opacity:0.9; }
.hero-stats span { font-size:2rem; font-weight:700; display:block; color:#fff; }

/* ===== FEATURES ===== */
.features { padding:80px 0; background:#fff; }
.section-header { text-align:center; margin-bottom:50px; }
.section-header h2 { font-size:2.4rem; font-weight:700; }
.section-header p { color:#6b6b7a; font-size:1.1rem; }
.features-grid { display:grid; grid-template-columns:repeat(auto-fit,minmax(240px,1fr)); gap:30px; }
.feature-card { background:#f8f9fa; padding:30px 20px; border-radius:16px; text-align:center; transition:0.2s; }
.feature-card:hover { transform:translateY(-6px); box-shadow:0 12px 30px rgba(0,0,0,0.06); }
.feature-icon { font-size:2.8rem; color:#e74c3c; margin-bottom:15px; }
.feature-card h3 { font-size:1.3rem; margin-bottom:10px; }

/* ===== TESTIMONIALS ===== */
.testimonials { padding:80px 0; background:#fafafa; }
.testimonial-grid { display:grid; grid-template-columns:repeat(auto-fit,minmax(280px,1fr)); gap:30px; }
.testimonial-card { background:#fff; padding:30px; border-radius:16px; box-shadow:0 4px 12px rgba(0,0,0,0.04); }
.testimonial-stars { color:#f1c40f; margin-bottom:12px; }
.testimonial-card p { font-style:italic; margin-bottom:16px; }
.testimonial-author { display:flex; align-items:center; gap:14px; }
.testimonial-author img { width:50px; height:50px; border-radius:50%; object-fit:cover; }
.testimonial-author strong { display:block; font-weight:600; }
.testimonial-author span { font-size:0.85rem; color:#6b6b7a; }

/* ===== CTA ===== */
.cta-section { background:#e74c3c; color:#fff; padding:80px 0; text-align:center; }
.cta-section h2 { font-size:2.6rem; }
.cta-section p { font-size:1.2rem; margin:10px 0 30px; opacity:0.9; }
.cta-section .btn { background:#fff; color:#e74c3c; }
.cta-section .btn:hover { background:#f0f0f0; }

/* ===== FOOTER ===== */
.footer { background:#1e1e2a; color:#b0b0c0; padding:60px 0 20px; }
.footer-grid { display:grid; grid-template-columns:repeat(auto-fit,minmax(180px,1fr)); gap:40px; margin-bottom:30px; }
.footer-col h3, .footer-col h4 { color:#fff; margin-bottom:16px; }
.footer-col ul { list-style:none; }
.footer-col ul li { margin-bottom:8px; }
.footer-col ul li a:hover { color:#e74c3c; }
.footer-social { display:flex; gap:12px; margin-top:12px; }
.footer-social a { background:#2c2c3a; width:40px; height:40px; border-radius:50%; display:flex; align-items:center; justify-content:center; color:#fff; transition:0.2s; }
.footer-social a:hover { background:#e74c3c; }
.footer-bottom { border-top:1px solid #2c2c3a; padding-top:20px; text-align:center; font-size:0.9rem; }

/* ===== BROWSE ===== */
.page-header { padding:40px 0 20px; background:#fff; border-bottom:1px solid #eee; }
.page-header h1 { font-size:2.2rem; }
.page-header p { color:#6b6b7a; }

.browse-filters { padding:30px 0; background:#fff; border-bottom:1px solid #eee; }
.filter-bar { display:flex; flex-wrap:wrap; gap:14px; align-items:center; }
.filter-bar input, .filter-bar select { padding:12px 16px; border:1px solid #ddd; border-radius:40px; flex:1; min-width:160px; font-size:0.95rem; outline:none; }
.filter-bar input:focus, .filter-bar select:focus { border-color:#e74c3c; }
.filter-bar .btn { padding:10px 24px; }

.member-grid { display:grid; grid-template-columns:repeat(auto-fill,minmax(280px,1fr)); gap:30px; margin:40px 0; }
.member-card { background:#fff; border-radius:16px; overflow:hidden; box-shadow:0 4px 12px rgba(0,0,0,0.06); transition:0.2s; }
.member-card:hover { transform:translateY(-4px); box-shadow:0 8px 25px rgba(0,0,0,0.08); }
.member-card img { height:200px; object-fit:cover; width:100%; }
.member-info { padding:18px; }
.member-info h3 { font-size:1.2rem; display:flex; justify-content:space-between; align-items:center; }
.member-info h3 span { font-size:0.75rem; color:#2ecc71; font-weight:400; }
.member-info .member-bio { font-size:0.9rem; color:#4a4a5a; margin:8px 0; }
.member-tags { display:flex; flex-wrap:wrap; gap:6px; margin:8px 0 14px; }
.member-tags span { background:#ecf0f1; padding:4px 12px; border-radius:20px; font-size:0.75rem; }
.member-info .btn-sm { margin-top:6px; }

.pagination { display:flex; justify-content:center; gap:8px; margin:30px 0; }
.pagination a { padding:8px 16px; border:1px solid #ddd; border-radius:30px; color:#1e1e2a; transition:0.2s; }
.pagination a.active { background:#e74c3c; color:#fff; border-color:#e74c3c; }
.pagination a:hover:not(.active) { background:#ecf0f1; }

/* ===== MESSAGES ===== */
.messages-layout { display:grid; grid-template-columns:300px 1fr; gap:0; background:#fff; border-radius:16px; overflow:hidden; box-shadow:0 4px 20px rgba(0,0,0,0.06); margin:30px 0; }
.conversation-list { border-right:1px solid #eee; max-height:600px; overflow-y:auto; }
.conversation-item { display:flex; align-items:center; gap:14px; padding:16px 20px; cursor:pointer; transition:0.2s; border-bottom:1px solid #f5f5f5; }
.conversation-item:hover { background:#f8f9fa; }
.conversation-item.active { background:#f0f2f5; }
.conversation-item img { width:48px; height:48px; border-radius:50%; object-fit:cover; }
.conversation-info { flex:1; }
.conversation-info h4 { font-size:1rem; margin-bottom:2px; }
.conversation-info p { font-size:0.85rem; color:#6b6b7a; white-space:nowrap; overflow:hidden; text-overflow:ellipsis; }
.conversation-info .time { font-size:0.7rem; color:#aaa; float:right; }

.chat-window { display:flex; flex-direction:column; height:600px; }
.chat-header { display:flex; align-items:center; gap:14px; padding:16px 24px; border-bottom:1px solid #eee; }
.chat-header img { width:44px; height:44px; border-radius:50%; object-fit:cover; }
.chat-header h3 { font-size:1.1rem; }
.chat-header span { font-size:0.8rem; color:#2ecc71; }
.chat-actions { margin-left:auto; display:flex; gap:16px; color:#6b6b7a; cursor:pointer; }
.chat-messages { flex:1; padding:24px; overflow-y:auto; display:flex; flex-direction:column; gap:12px; background:#fafafa; }
.message { max-width:70%; padding:10px 16px; border-radius:16px; position:relative; }
.message.received { align-self:flex-start; background:#fff; box-shadow:0 1px 4px rgba(0,0,0,0.06); }
.message.sent { align-self:flex-end; background:#e74c3c; color:#fff; }
.message span { font-size:0.7rem; opacity:0.7; display:block; margin-top:4px; text-align:right; }
.chat-input { display:flex; padding:16px 24px; border-top:1px solid #eee; background:#fff; }
.chat-input input { flex:1; padding:12px 18px; border:1px solid #ddd; border-radius:30px; outline:none; font-size:0.95rem; }
.chat-input input:focus { border-color:#e74c3c; }
.chat-input button { margin-left:12px; background:#e74c3c; color:#fff; border:none; width:48px; border-radius:50%; cursor:pointer; transition:0.2s; }
.chat-input button:hover { background:#c0392b; }

/* ===== PROFILE ===== */
.profile-container { margin:30px 0; }
.profile-card { background:#fff; border-radius:16px; overflow:hidden; box-shadow:0 4px 20px rgba(0,0,0,0.06); position:relative; }
.profile-cover img { width:100%; height:180px; object-fit:cover; }
.profile-avatar { position:relative; width:130px; height:130px; margin:-60px auto 0; border:4px solid #fff; border-radius:50%; overflow:hidden; background:#fff; }
.profile-avatar img { width:100%; height:100%; object-fit:cover; }
.btn-edit-avatar { position:absolute; bottom:4px; right:4px; background:#e74c3c; color:#fff; border:none; border-radius:50%; width:32px; height:32px; cursor:pointer; }
.profile-details { text-align:center; padding:20px 30px 30px; }
.profile-details h2 { font-size:1.8rem; }
.profile-details h2 span { font-size:0.9rem; color:#2ecc71; font-weight:400; }
.profile-location { color:#6b6b7a; margin:4px 0 8px; }
.profile-bio { max-width:500px; margin:0 auto 12px; color:#4a4a5a; }
.profile-interests { display:flex; flex-wrap:wrap; gap:8px; justify-content:center; }
.profile-interests span { background:#ecf0f1; padding:6px 16px; border-radius:30px; font-size:0.85rem; }
.profile-actions { display:flex; gap:16px; justify-content:center; padding:0 30px 30px; flex-wrap:wrap; }

.profile-edit-section { background:#fff; padding:30px; border-radius:16px; margin-top:30px; box-shadow:0 4px 20px rgba(0,0,0,0.06); }
.profile-edit-section h3 { margin-bottom:20px; }
.profile-edit-section form label { display:block; font-weight:600; margin-top:16px; }
.profile-edit-section form input, .profile-edit-section form textarea { width:100%; padding:12px 16px; border:1px solid #ddd; border-radius:10px; margin-top:6px; font-family:inherit; font-size:0.95rem; outline:none; }
.profile-edit-section form input:focus, .profile-edit-section form textarea:focus { border-color:#e74c3c; }
.profile-edit-section form .btn { margin-top:20px; }

/* ===== AUTH ===== */
.auth-section { padding:60px 0; display:flex; justify-content:center; }
.auth-box { background:#fff; border-radius:20px; padding:40px; max-width:480px; width:100%; box-shadow:0 8px 40px rgba(0,0,0,0.06); }
.auth-tabs { display:flex; gap:10px; margin-bottom:30px; border-bottom:2px solid #eee; }
.tab-btn { background:none; border:none; padding:12px 24px; font-size:1rem; font-weight:600; color:#6b6b7a; cursor:pointer; transition:0.2s; border-bottom:3px solid transparent; }
.tab-btn.active { color:#e74c3c; border-bottom-color:#e74c3c; }
.auth-form { display:none; }
.auth-form.active { display:block; }
.auth-form h2 { font-size:1.8rem; }
.auth-form p { color:#6b6b7a; margin-bottom:20px; }
.auth-form form label { display:block; font-weight:600; margin-top:14px; }
.auth-form form input { width:100%; padding:12px 16px; border:1px solid #ddd; border-radius:10px; margin-top:4px; font-size:0.95rem; outline:none; }
.auth-form form input:focus { border-color:#e74c3c; }
.auth-options { display:flex; justify-content:space-between; align-items:center; margin:16px 0; font-size:0.9rem; }
.auth-options a { color:#e74c3c; }
.auth-form .btn-block { margin-top:10px; }
.auth-social { text-align:center; margin-top:24px; }
.auth-social p { color:#6b6b7a; margin-bottom:10px; }
.social-icons { display:flex; gap:16px; justify-content:center; }
.social-icons a { background:#ecf0f1; width:44px; height:44px; border-radius:50%; display:flex; align-items:center; justify-content:center; font-size:1.2rem; color:#1e1e2a; transition:0.2s; }
.social-icons a:hover { background:#e74c3c; color:#fff; }

/* ===== RESPONSIVE ===== */
@media (max-width:768px) {
    .nav-links { display:none; flex-direction:column; width:100%; background:#fff; padding:20px 0; position:absolute; top:70px; left:0; box-shadow:0 8px 20px rgba(0,0,0,0.05); }
    .nav-links.active { display:flex; }
    .nav-toggle { display:block; }
    .hero-content h1 { font-size:2.2rem; }
    .hero-stats { flex-wrap:wrap; gap:20px; }
    .messages-layout { grid-template-columns:1fr; }
    .conversation-list { max-height:300px; border-right:none; border-bottom:1px solid #eee; }
    .chat-window { height:450px; }
    .filter-bar { flex-direction:column; align-items:stretch; }
    .member-grid { grid-template-columns:1fr 1fr; }
    .profile-card { margin:0 10px; }
    .auth-box { padding:30px 20px; }
}
@media (max-width:480px) {
    .member-grid { grid-template-columns:1fr; }
    .hero-content h1 { font-size:1.8rem; }
}