*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
:root{
--primary:#2563eb;--primary-dark:#1d4ed8;--primary-light:#dbeafe;
--success:#16a34a;--success-light:#dcfce7;
--danger:#dc2626;--danger-light:#fee2e2;
--warning:#d97706;--warning-light:#fef3c7;
--premium:#f59e0b;--premium-light:#fef3c7;
--live:#ef4444;--live-light:#fee2e2;
--bg:#f8fafc;--surface:#fff;--border:#e2e8f0;
--text:#0f172a;--text-secondary:#64748b;--text-muted:#94a3b8;
--radius:12px;--radius-sm:8px;--shadow:0 1px 3px rgba(0,0,0,.08);
--shadow-md:0 4px 12px rgba(0,0,0,.08);
--header-h:56px;--nav-h:64px;--safe-bottom:env(safe-area-inset-bottom,0px);
--font:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Oxygen,Ubuntu,sans-serif;
--transition:150ms ease;
}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{font-family:var(--font);background:var(--bg);color:var(--text);line-height:1.5;min-height:100dvh;padding-bottom:calc(var(--nav-h) + var(--safe-bottom));-webkit-font-smoothing:antialiased}
img,svg{display:block;max-width:100%}
a{color:var(--primary);text-decoration:none}
button,input,select,textarea{font:inherit;color:inherit}
button{cursor:pointer;border:none;background:none}

.site-header{position:sticky;top:0;z-index:100;background:var(--surface);border-bottom:1px solid var(--border);height:var(--header-h)}
.header-inner{display:flex;align-items:center;justify-content:space-between;padding:0 16px;height:100%;max-width:640px;margin:0 auto}
.logo{display:flex;align-items:center;gap:8px;color:var(--text);font-weight:700;font-size:18px}
.logo-icon{font-size:22px}
.header-user{display:flex;align-items:center;gap:6px}
.avatar-sm,.avatar-lg{display:flex;align-items:center;justify-content:center;background:var(--primary-light);color:var(--primary);font-weight:700;border-radius:50%;text-transform:uppercase}
.avatar-sm{width:36px;height:36px;font-size:14px}
.avatar-lg{width:72px;height:72px;font-size:28px}

.bottom-nav{position:fixed;bottom:0;left:0;right:0;z-index:100;display:flex;background:var(--surface);border-top:1px solid var(--border);padding-bottom:var(--safe-bottom);height:calc(var(--nav-h) + var(--safe-bottom))}
.nav-item{flex:1;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:2px;color:var(--text-muted);font-size:11px;font-weight:500;padding:8px 4px;transition:color var(--transition)}
.nav-item svg{width:22px;height:22px}
.nav-item.active{color:var(--primary)}

.main-content{max-width:640px;margin:0 auto;padding:16px;min-height:calc(100dvh - var(--header-h) - var(--nav-h))}
.site-footer{text-align:center;padding:16px;font-size:12px;color:var(--text-muted);max-width:640px;margin:0 auto}

.section-header{display:flex;align-items:center;justify-content:space-between;margin-bottom:12px}
.section-title{font-size:18px;font-weight:700;display:flex;align-items:center;gap:8px}
.section-desc{color:var(--text-secondary);font-size:14px;margin-bottom:16px}
.page-section{margin-bottom:24px}

.live-dot{width:8px;height:8px;background:var(--live);border-radius:50%;animation:pulse 1.5s infinite}
@keyframes pulse{0%,100%{opacity:1}50%{opacity:.4}}

.badge{display:inline-flex;align-items:center;padding:2px 8px;background:var(--border);border-radius:20px;font-size:12px;font-weight:600;color:var(--text-secondary)}
.badge-live{background:var(--live-light);color:var(--live)}
.badge-premium{background:var(--premium-light);color:var(--premium)}
.premium-badge{display:inline-flex;align-items:center;padding:2px 8px;background:linear-gradient(135deg,#f59e0b,#d97706);color:#fff;border-radius:20px;font-size:10px;font-weight:700;letter-spacing:.5px}
.premium-badge.lg{font-size:12px;padding:4px 12px}

.match-list,.coupon-list{display:flex;flex-direction:column;gap:10px}
.match-card{background:var(--surface);border-radius:var(--radius);padding:14px;box-shadow:var(--shadow);border:1px solid var(--border);transition:transform var(--transition)}
.match-card.status-live{border-left:3px solid var(--live)}
.match-league{display:flex;justify-content:space-between;align-items:center;margin-bottom:10px;font-size:12px;color:var(--text-secondary)}
.league-name{font-weight:500;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;max-width:70%}
.match-status{font-weight:700;font-size:12px}
.match-status.status-live{color:var(--live)}
.match-status.status-finished{color:var(--text-muted)}
.match-time{font-weight:600}

.match-teams{display:grid;grid-template-columns:1fr auto 1fr;align-items:center;gap:8px}
.team{display:flex;flex-direction:column;gap:2px}
.team.home{text-align:left}
.team.away{text-align:right}
.team-name{font-weight:600;font-size:14px;line-height:1.3}
.match-score{display:flex;align-items:center;gap:4px;font-weight:800;font-size:20px;min-width:60px;justify-content:center}
.score-sep{color:var(--text-muted);font-weight:400}
.vs{font-size:13px;color:var(--text-muted);font-weight:600}

.match-prediction{margin-top:10px;padding:10px;background:var(--bg);border-radius:var(--radius-sm);font-size:13px;position:relative;overflow:hidden}
.prediction-content{display:flex;align-items:center;gap:6px;flex-wrap:wrap}
.prediction-label{color:var(--text-secondary)}
.confidence{margin-left:auto;background:var(--primary-light);color:var(--primary);padding:1px 6px;border-radius:4px;font-size:11px;font-weight:600}

.premium-locked{min-height:44px}
.premium-overlay{display:flex;align-items:center;justify-content:center;gap:8px;padding:10px;background:linear-gradient(135deg,#fef3c7,#fde68a);border-radius:var(--radius-sm);color:#92400e;font-size:13px;font-weight:600}
.premium-overlay.coupon-overlay{flex-direction:column;text-align:center;padding:24px 16px;position:relative;z-index:2}
.premium-overlay h3{font-size:16px;margin-bottom:4px}
.premium-overlay p{font-size:13px;font-weight:400;margin-bottom:12px}
.coupon-preview{position:absolute;inset:0;padding:16px;opacity:.3}
.preview-line{height:40px;background:var(--border);border-radius:var(--radius-sm);margin-bottom:8px}

.match-actions{display:flex;justify-content:flex-end;margin-top:8px;padding-top:8px;border-top:1px solid var(--border)}
.btn-like{display:flex;align-items:center;gap:4px;color:var(--text-muted);padding:4px 8px;border-radius:var(--radius-sm);transition:color var(--transition),transform var(--transition)}
.btn-like:active{transform:scale(.95)}
.btn-like.liked{color:var(--danger)}
.like-count{font-size:13px;font-weight:600}

.coupon-card{background:var(--surface);border-radius:var(--radius);padding:16px;box-shadow:var(--shadow);border:1px solid var(--border)}
.coupon-header{display:flex;justify-content:space-between;align-items:flex-start;margin-bottom:8px}
.coupon-title{font-size:16px;font-weight:700}
.coupon-odds{background:var(--primary);color:#fff;padding:4px 10px;border-radius:var(--radius-sm);font-weight:700;font-size:14px}
.coupon-desc{color:var(--text-secondary);font-size:13px;margin-bottom:12px}
.coupon-items{position:relative;margin-bottom:12px}
.coupon-item{display:flex;align-items:flex-start;gap:10px;padding:10px 0;border-bottom:1px solid var(--border)}
.coupon-item:last-child{border-bottom:none}
.item-num{width:24px;height:24px;display:flex;align-items:center;justify-content:center;background:var(--primary-light);color:var(--primary);border-radius:50%;font-size:12px;font-weight:700;flex-shrink:0}
.item-content{flex:1;min-width:0}
.item-teams{font-weight:600;font-size:14px;margin-bottom:4px}
.item-pick{display:flex;align-items:center;gap:8px;font-size:13px;color:var(--text-secondary)}
.item-odds{background:var(--bg);padding:1px 6px;border-radius:4px;font-weight:600}
.item-time{font-size:11px;color:var(--text-muted);margin-top:2px}
.item-result{font-size:11px;font-weight:700;padding:2px 6px;border-radius:4px;flex-shrink:0}
.result-pending{background:var(--bg);color:var(--text-muted)}
.result-won{background:var(--success-light);color:var(--success)}
.result-lost{background:var(--danger-light);color:var(--danger)}
.coupon-footer{display:flex;align-items:center;justify-content:space-between;padding-top:10px;border-top:1px solid var(--border)}
.coupon-meta{font-size:12px;color:var(--text-muted)}

.date-nav{display:flex;align-items:center;justify-content:space-between;background:var(--surface);padding:8px 12px;border-radius:var(--radius);margin-bottom:12px;border:1px solid var(--border)}
.date-arrow{width:40px;height:40px;display:flex;align-items:center;justify-content:center;font-size:24px;color:var(--primary);border-radius:50%}
.date-display{text-align:center;flex:1}
.date-label{display:block;font-weight:600;font-size:14px}
.date-input{position:absolute;opacity:0;width:0;height:0}
.filter-chips{display:flex;gap:8px;overflow-x:auto;padding-bottom:12px;-webkit-overflow-scrolling:touch;scrollbar-width:none}
.filter-chips::-webkit-scrollbar{display:none}
.chip{display:inline-flex;padding:6px 14px;background:var(--surface);border:1px solid var(--border);border-radius:20px;font-size:13px;font-weight:500;color:var(--text-secondary);white-space:nowrap;transition:all var(--transition)}
.chip.active{background:var(--primary);color:#fff;border-color:var(--primary)}

.empty-state{text-align:center;padding:48px 24px;background:var(--surface);border-radius:var(--radius);border:1px solid var(--border)}
.empty-icon{font-size:48px;margin-bottom:12px}
.empty-state p{color:var(--text-secondary);margin-bottom:16px}

.btn{display:inline-flex;align-items:center;justify-content:center;gap:6px;padding:10px 20px;border-radius:var(--radius-sm);font-weight:600;font-size:14px;transition:all var(--transition);border:2px solid transparent}
.btn:active{transform:scale(.98)}
.btn-primary{background:var(--primary);color:#fff}
.btn-primary:hover{background:var(--primary-dark)}
.btn-outline{background:transparent;border-color:var(--border);color:var(--text)}
.btn-premium{background:linear-gradient(135deg,#f59e0b,#d97706);color:#fff}
.btn-sm{padding:6px 14px;font-size:13px}
.btn-xs{padding:4px 10px;font-size:11px}
.btn-block{width:100%}

.alert{padding:12px 16px;border-radius:var(--radius-sm);margin-bottom:16px;font-size:14px;font-weight:500}
.alert-success{background:var(--success-light);color:var(--success)}
.alert-error{background:var(--danger-light);color:var(--danger)}
.alert-warning{background:var(--warning-light);color:var(--warning)}

.auth-section{display:flex;align-items:center;justify-content:center;min-height:calc(100dvh - var(--header-h) - var(--nav-h) - 32px)}
.auth-card{background:var(--surface);padding:32px 24px;border-radius:var(--radius);box-shadow:var(--shadow-md);border:1px solid var(--border);width:100%;max-width:400px}
.auth-title{font-size:24px;font-weight:800;margin-bottom:4px}
.auth-subtitle{color:var(--text-secondary);margin-bottom:24px;font-size:14px}
.auth-form{display:flex;flex-direction:column;gap:16px}
.auth-footer{text-align:center;margin-top:20px;font-size:14px;color:var(--text-secondary)}

.form-group{display:flex;flex-direction:column;gap:6px}
.form-group label{font-size:13px;font-weight:600;color:var(--text-secondary)}
.form-group input,.form-group select,.form-group textarea{width:100%;padding:12px 14px;border:1px solid var(--border);border-radius:var(--radius-sm);background:var(--surface);font-size:16px;transition:border-color var(--transition)}
.form-group input:focus,.form-group select:focus,.form-group textarea:focus{outline:none;border-color:var(--primary);box-shadow:0 0 0 3px var(--primary-light)}
.form-card{background:var(--surface);padding:20px;border-radius:var(--radius);border:1px solid var(--border);margin-bottom:16px}

.account-header,.profile-header{display:flex;align-items:center;gap:16px;margin-bottom:20px}
.account-info h1,.profile-info h1{font-size:20px;font-weight:700}
.username{color:var(--text-secondary);font-size:14px}
.account-stats{display:flex;gap:16px;margin-bottom:20px}
.stat-item{flex:1;background:var(--surface);padding:16px;border-radius:var(--radius);text-align:center;border:1px solid var(--border)}
.stat-value{display:block;font-size:20px;font-weight:800}
.stat-label{font-size:12px;color:var(--text-secondary)}

.tabs{display:flex;gap:4px;margin-bottom:16px;background:var(--surface);padding:4px;border-radius:var(--radius);border:1px solid var(--border)}
.tab{flex:1;padding:10px;border-radius:var(--radius-sm);font-size:13px;font-weight:600;color:var(--text-secondary);transition:all var(--transition)}
.tab.active{background:var(--primary);color:#fff}
.tab-panel{display:none}
.tab-panel.active{display:block}

.settings-link{display:flex;justify-content:space-between;align-items:center;padding:14px 0;border-bottom:1px solid var(--border);color:var(--text);font-weight:500}
.settings-link:last-child{border-bottom:none}
.settings-link.danger{color:var(--danger)}

.profile-bio{color:var(--text-secondary);margin-bottom:8px;font-size:14px}
.profile-meta{font-size:13px;color:var(--text-muted);margin-bottom:16px}
.profile-actions{display:flex;gap:8px;margin-bottom:16px}

.premium-hero{text-align:center;padding:32px 16px;background:linear-gradient(135deg,#fef3c7,#fff);border-radius:var(--radius);margin-bottom:24px;border:1px solid #fde68a}
.premium-icon{color:var(--premium);margin-bottom:12px}
.premium-hero h1{font-size:24px;font-weight:800;margin-bottom:4px}
.premium-hero p{color:var(--text-secondary)}
.premium-features{display:flex;flex-direction:column;gap:12px;margin-bottom:24px}
.feature-item{display:flex;align-items:flex-start;gap:12px;padding:14px;background:var(--surface);border-radius:var(--radius);border:1px solid var(--border)}
.feature-item svg{color:var(--success);flex-shrink:0;margin-top:2px}
.feature-item strong{display:block;font-size:14px;margin-bottom:2px}
.feature-item p{font-size:13px;color:var(--text-secondary)}
.premium-pricing{margin-bottom:20px}
.price-card{text-align:center;padding:24px;background:var(--surface);border-radius:var(--radius);border:2px solid var(--premium)}
.price-amount{font-size:36px;font-weight:800;color:var(--premium)}
.price-period{color:var(--text-secondary);font-size:14px}
.premium-note{text-align:center;font-size:12px;color:var(--text-muted);margin-top:12px}

.modal{position:fixed;inset:0;z-index:200;display:flex;align-items:center;justify-content:center;padding:16px}
.modal[hidden]{display:none}
.modal-backdrop{position:absolute;inset:0;background:rgba(0,0,0,.4)}
.modal-content{position:relative;background:var(--surface);padding:24px;border-radius:var(--radius);width:100%;max-width:400px;box-shadow:var(--shadow-md)}
.modal-content h3{margin-bottom:16px;font-size:18px}
.modal-actions{display:flex;gap:8px;justify-content:flex-end;margin-top:16px}

@media(min-width:480px){
.main-content{padding:20px 24px}
.match-card{padding:16px}
.team-name{font-size:15px}
}
@media(min-width:768px){
.main-content,.header-inner,.site-footer{max-width:720px}
.bottom-nav{max-width:720px;left:50%;transform:translateX(-50%);border-radius:var(--radius) var(--radius) 0 0}
}