:root{--color-primary: #E11D48;--color-primary-hover: #BE123C;--color-secondary: #4F46E5;--color-background: #F3F4F6;--color-surface: #FFFFFF;--color-text-main: #1F2937;--color-text-secondary: #6B7280;--color-border: #E5E7EB;--color-success: #10B981;--color-error: #EF4444;--spacing-xs: 4px;--spacing-sm: 8px;--spacing-md: 16px;--spacing-lg: 24px;--spacing-xl: 32px;--radius-sm: 4px;--radius-md: 8px;--radius-lg: 12px;--radius-full: 9999px;--font-sans: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Oxygen, Ubuntu, Cantarell, "Open Sans", "Helvetica Neue", sans-serif;--shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, .05);--shadow-md: 0 4px 6px -1px rgba(0, 0, 0, .1), 0 2px 4px -1px rgba(0, 0, 0, .06);--shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, .1), 0 4px 6px -2px rgba(0, 0, 0, .05)}*,*:before,*:after{box-sizing:border-box;margin:0;padding:0}html,body{height:100%;width:100%}body{line-height:1.5;-webkit-font-smoothing:antialiased;background-color:var(--color-background);color:var(--color-text-main);font-family:var(--font-sans)}img,picture,video,canvas,svg{display:block;max-width:100%}input,button,textarea,select{font:inherit}button{cursor:pointer;background:none;border:none}a{text-decoration:none;color:inherit}ul,ol{list-style:none}.container{max-width:600px;margin:0 auto;padding:0 var(--spacing-md)}.landing-page{display:flex;flex-direction:column;align-items:center;justify-content:center;min-height:100vh;padding:var(--spacing-lg);background:linear-gradient(135deg,var(--color-primary),var(--color-secondary));color:#fff}.landing-header{margin-bottom:var(--spacing-xl);text-align:center}.landing-title{font-size:3rem;font-weight:800;margin-bottom:var(--spacing-sm)}.landing-subtitle{font-size:1.25rem;opacity:.9}.user-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(140px,1fr));gap:var(--spacing-md);width:100%;max-width:600px}.user-card-mini{background:#ffffffe6;padding:var(--spacing-md);border-radius:var(--radius-lg);cursor:pointer;transition:transform .2s,background .2s;text-align:center;color:var(--color-text-main);display:flex;flex-direction:column;align-items:center;box-shadow:var(--shadow-md)}.user-card-mini:hover{transform:translateY(-4px);background:#fff}.user-avatar{width:80px;height:80px;border-radius:50%;object-fit:cover;margin-bottom:var(--spacing-sm);border:3px solid var(--color-primary)}.user-name{font-weight:600;font-size:1.1rem}.bottom-nav{position:fixed;bottom:0;left:0;width:100%;height:60px;background:var(--color-surface);border-top:1px solid var(--color-border);display:flex;justify-content:space-around;align-items:center;z-index:1000;padding-bottom:env(safe-area-inset-bottom)}.nav-item{display:flex;flex-direction:column;align-items:center;justify-content:center;flex:1;height:100%;color:var(--color-text-secondary);font-size:.75rem;gap:4px;transition:color .2s;position:relative}.nav-item.active{color:var(--color-primary)}.nav-icon{width:24px;height:24px}.nav-badge{position:absolute;top:-2px;right:-2px;background-color:var(--color-primary);width:10px;height:10px;border-radius:50%;border:2px solid white}.user-card{position:relative;background:#fff;border-radius:var(--radius-lg);overflow:hidden;box-shadow:var(--shadow-lg);height:calc(100vh - 140px);display:flex;flex-direction:column;max-width:600px;margin:0 auto}.card-image-container{flex:1;position:relative;overflow:hidden;background-color:var(--color-text-secondary)}.card-image{width:100%;height:100%;object-fit:cover}.card-content{padding:var(--spacing-md);background:#fff}.card-header{display:flex;align-items:baseline;margin-bottom:var(--spacing-xs)}.card-name{font-size:1.5rem;font-weight:700}.card-age{font-size:1.5rem;font-weight:400;margin-left:8px}.card-info{color:var(--color-text-secondary);font-size:.9rem;display:flex;align-items:center;gap:4px;margin-bottom:var(--spacing-sm)}.card-bio{font-size:.95rem;color:var(--color-text-main);margin-bottom:var(--spacing-md);display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden}.card-interests{display:flex;flex-wrap:wrap;gap:4px;margin-bottom:var(--spacing-md)}.card-interest-tag{font-size:.8rem;background:var(--color-background);padding:4px 8px;border-radius:var(--radius-sm);color:var(--color-text-secondary)}.card-actions{display:flex;justify-content:center;gap:var(--spacing-xl);padding:var(--spacing-md);border-top:1px solid var(--color-border);background:#fff}.action-btn{width:60px;height:60px;border-radius:50%;display:flex;align-items:center;justify-content:center;box-shadow:var(--shadow-md);transition:transform .2s,background .2s}.action-btn:active{transform:scale(.95)}.btn-pass{background:#fff;color:var(--color-error);border:1px solid var(--color-border)}.btn-like{background:var(--color-primary);color:#fff}.discover-page{padding:var(--spacing-md);height:100%;display:flex;flex-direction:column;justify-content:center}.no-more-users{text-align:center;padding:var(--spacing-xl);color:var(--color-text-secondary);display:flex;flex-direction:column;align-items:center;gap:var(--spacing-md);justify-content:center;height:80vh}.refresh-icon{width:48px;height:48px;color:var(--color-primary)}.groups-page{padding:var(--spacing-md);padding-bottom:80px}.groups-header{margin-bottom:var(--spacing-lg)}.groups-list{display:flex;flex-direction:column;gap:var(--spacing-md)}.group-card{background:#fff;border-radius:var(--radius-lg);overflow:hidden;box-shadow:var(--shadow-sm);display:flex;min-height:140px}.group-image{width:120px;object-fit:cover}.group-content{flex:1;padding:var(--spacing-md);display:flex;flex-direction:column;justify-content:space-between;gap:8px}.group-name{font-weight:700;font-size:1.1rem;margin-bottom:2px;line-height:1.2}.group-category{font-size:.8rem;color:var(--color-primary);text-transform:uppercase;font-weight:600;margin-bottom:4px}.group-desc{font-size:.85rem;color:var(--color-text-secondary);display:-webkit-box;line-clamp:2;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;margin-bottom:auto}.group-footer{display:flex;justify-content:space-between;align-items:center;margin-top:4px;padding-bottom:2px}.group-members{font-size:.8rem;color:var(--color-text-secondary)}.btn-join{background:var(--color-secondary);color:#fff;padding:6px 16px;border-radius:var(--radius-full);font-size:.85rem;font-weight:600}.btn-joined{background:#fff;color:var(--color-success);border:1px solid var(--color-success);padding:6px 16px;border-radius:var(--radius-full);font-size:.85rem;font-weight:600}.matches-page{padding:var(--spacing-md)}.matches-header{margin-bottom:var(--spacing-lg)}.matches-list{display:flex;flex-direction:column;gap:var(--spacing-sm)}.match-item{display:flex;align-items:center;padding:var(--spacing-md);background:#fff;border-radius:var(--radius-md);cursor:pointer;box-shadow:var(--shadow-sm);transition:transform .1s}.match-item:active{transform:scale(.98)}.match-avatar{width:56px;height:56px;border-radius:50%;object-fit:cover;margin-right:var(--spacing-md);border:2px solid var(--color-primary)}.match-info{flex:1}.match-name{font-weight:600;font-size:1.1rem;margin-bottom:2px}.match-status{color:var(--color-text-secondary);font-size:.85rem}.profile-page{padding:var(--spacing-lg) var(--spacing-md);display:flex;flex-direction:column;align-items:center;min-height:calc(100vh - 60px)}.profile-header{display:flex;flex-direction:column;align-items:center;margin-bottom:var(--spacing-xl)}.profile-avatar{width:120px;height:120px;border-radius:50%;object-fit:cover;border:4px solid var(--color-primary);margin-bottom:var(--spacing-md)}.profile-name{font-size:1.5rem;font-weight:700;margin-bottom:var(--spacing-xs)}.profile-location{color:var(--color-text-secondary);font-size:.9rem;display:flex;align-items:center;gap:4px}.profile-section{width:100%;max-width:400px;margin-bottom:var(--spacing-lg)}.section-title{font-size:1.1rem;font-weight:600;margin-bottom:var(--spacing-sm);border-bottom:2px solid var(--color-background);padding-bottom:var(--spacing-xs)}.interests-grid{display:flex;flex-wrap:wrap;gap:var(--spacing-sm)}.interest-tag{background:var(--color-background);padding:4px 12px;border-radius:var(--radius-full);font-size:.9rem;color:var(--color-text-main)}.action-buttons{margin-top:auto;width:100%;max-width:400px}.btn-logout{width:100%;padding:var(--spacing-md);background:var(--color-background);color:var(--color-error);font-weight:600;border-radius:var(--radius-md);transition:background .2s}.btn-logout:hover{background:#fef2f2}.chat-page{display:flex;flex-direction:column;height:100vh;background:var(--color-background)}.chat-header{height:60px;background:#fff;border-bottom:1px solid var(--color-border);display:flex;align-items:center;padding:0 var(--spacing-md);position:sticky;top:0;z-index:10}.back-button{margin-right:var(--spacing-md)}.chat-user-info{display:flex;align-items:center}.chat-avatar{width:36px;height:36px;border-radius:50%;object-fit:cover;margin-right:var(--spacing-sm)}.chat-username{font-weight:600}.messages-list{flex:1;overflow-y:auto;padding:var(--spacing-md);display:flex;flex-direction:column;gap:var(--spacing-sm)}.chat-input-area{padding:var(--spacing-md);background:#fff;border-top:1px solid var(--color-border);display:flex;gap:var(--spacing-sm);align-items:center}.input-field{flex:1;padding:10px;border:1px solid var(--color-border);border-radius:var(--radius-full);outline:none}.btn-send,.btn-invite{width:40px;height:40px;border-radius:50%;display:flex;align-items:center;justify-content:center;color:#fff}.btn-send{background:var(--color-primary)}.btn-invite{background:var(--color-secondary)}.chat-bubble{max-width:75%;padding:10px 14px;border-radius:18px;font-size:.95rem;line-height:1.4;position:relative}.chat-bubble.sent{align-self:flex-end;background:var(--color-primary);color:#fff;border-bottom-right-radius:4px}.chat-bubble.received{align-self:flex-start;background:#fff;color:var(--color-text-main);border:1px solid var(--color-border);border-bottom-left-radius:4px}.invitation-card-bubble{width:100%;background:#fff;border-radius:var(--radius-lg);overflow:hidden;color:var(--color-text-main);box-shadow:0 2px 4px #0000001a;margin-top:4px}.invite-header{background:var(--color-secondary);color:#fff;padding:8px 12px;font-weight:600;font-size:.9rem;display:flex;align-items:center;gap:6px}.invite-content{padding:12px}.invite-row{display:flex;align-items:center;gap:8px;margin-bottom:6px;font-size:.9rem}.invite-actions{display:flex;border-top:1px solid var(--color-border)}.btn-invite-action{flex:1;padding:10px;font-weight:600;font-size:.9rem}.btn-accept{color:var(--color-success);border-right:1px solid var(--color-border)}.btn-decline{color:var(--color-error)}.bg-success{background-color:var(--color-success)!important}.bg-error{background-color:var(--color-error)!important}