:root{--primary-color: #1F6FEB;--secondary-color: #0D1117;--bg: #F5F7FA}*{box-sizing:border-box}body{margin:0;font-family:system-ui,-apple-system,Segoe UI,sans-serif;background:var(--bg);color:var(--secondary-color)}.home-screen{max-width:480px;margin:0 auto;padding:24px 16px 64px}.auth-screen{min-height:100vh;display:flex;align-items:center;justify-content:center;padding:24px 16px;background-color:var(--bg);background-size:cover;background-position:center}.auth-card{width:100%;max-width:400px;background:#fffffff5;border-radius:20px;padding:32px 24px;box-shadow:0 12px 32px #00000026}.auth-logo{display:block;max-height:64px;max-width:100%;margin:0 auto 16px}.auth-card h1{text-align:center;font-size:20px}.auth-card form{display:flex;flex-direction:column;gap:16px}.auth-card label{display:flex;flex-direction:column;gap:6px;font-size:14px;font-weight:600}.auth-card label.remember{flex-direction:row;align-items:center;gap:8px}.auth-card>a{display:block;text-align:center;margin-top:16px}input{padding:12px 14px;border-radius:10px;border:1px solid #D0D7E2;font-size:16px}.phone-input-group{display:flex;align-items:stretch;gap:8px}.phone-prefix{display:flex;align-items:center;justify-content:center;padding:0 14px;border-radius:10px;border:1px solid #D0D7E2;background:#eef3ff;color:var(--primary-color);font-weight:700;font-size:16px}.phone-input-group input{flex:1;min-width:0}button{padding:14px 18px;border:none;border-radius:12px;background:var(--primary-color);color:#fff;font-size:16px;font-weight:600;cursor:pointer}button.link,a.link{background:none;color:var(--primary-color);padding:0;font-size:14px;font-weight:600;text-decoration:none}.error{color:#d33;font-size:14px}.home-screen header,.history-screen header{display:flex;justify-content:space-between;align-items:center;margin-bottom:24px}.header-links{display:flex;align-items:center;gap:16px;margin-left:auto}.delivered-today-notice{background:#e6f9ec;color:#14532d;border-radius:10px;padding:14px;font-size:14px;font-weight:600;text-align:center}.child-ready-notice{display:flex;align-items:center;justify-content:space-between;gap:10px;background:#fff4e5;border:2px solid #FFB020;color:#8a6d3b;border-radius:10px;padding:12px 14px;margin-bottom:14px;font-size:14px;font-weight:700;animation:child-ready-pulse 1.4s ease-in-out infinite}.child-ready-notice button{background:#ff8a00;color:#fff;padding:6px 12px;font-size:12px;border-radius:8px;flex-shrink:0}@keyframes child-ready-pulse{0%,to{box-shadow:0 0 #ff8a0059}50%{box-shadow:0 0 0 8px #ff8a0000}}.student-card{background:#fff;border-radius:16px;padding:16px;margin-bottom:16px;box-shadow:0 1px 4px #00000014}.student-info{display:flex;align-items:center;gap:12px;margin-bottom:16px}.student-info img{width:56px;height:56px;border-radius:50%;object-fit:cover}.student-info span{display:block;color:#667;font-size:13px}.arrived-section{background:#fff4e5;border:2px solid #FFB020;border-radius:16px;padding:18px;text-align:center;margin-bottom:18px}.arrived-section button.arrived{width:100%;background:#ff8a00;color:#fff;padding:20px;font-size:20px;font-weight:800;box-shadow:0 4px 12px #ff8a0059}.arrived-hint{display:block;margin-top:8px;font-size:12px;color:#8a6d3b}.section-divider{display:flex;align-items:center;text-align:center;color:#99a;font-size:12px;font-weight:600;margin:4px 0 18px}.section-divider:before,.section-divider:after{content:"";flex:1;height:1px;background:#e1e4e8}.section-divider span{padding:0 10px}.eta-section{background:#f5f7fa;border-radius:16px;padding:16px}.eta-buttons{display:grid;grid-template-columns:repeat(2,1fr);gap:10px}.eta-buttons button{background:#eef3ff;color:var(--primary-color);padding:18px;font-size:18px}.custom-eta{margin-top:14px;padding:14px;background:#fff;border-radius:12px;border:1px solid #E1E4E8}.custom-eta-label{display:block;font-size:12px;font-weight:700;color:#667;text-transform:uppercase;letter-spacing:.04em;margin-bottom:10px}.custom-eta-row{display:flex;align-items:center;gap:10px}.custom-eta-stepper{display:flex;align-items:center;gap:12px;background:#fff;border-radius:10px;padding:6px 10px;border:1px solid #D0D7E2}.custom-eta-stepper button{width:36px;height:36px;padding:0;border-radius:8px;background:#eef3ff;color:var(--primary-color);font-size:20px;font-weight:700;line-height:1}.custom-eta-value{min-width:52px;text-align:center;font-size:16px;font-weight:700}.custom-eta-submit{flex:1;background:var(--primary-color);color:#fff;padding:14px}.sent-status{margin-top:12px;color:#1f9d55;font-weight:600;text-align:center}.verification-badge{margin-top:16px;padding:16px;border-radius:12px;background:#f5f7fa;text-align:center}.verification-badge canvas{margin:0 auto}.verification-badge p{margin:8px 0 0;font-size:13px;color:#667}.verification-badge .pin-code{font-size:40px;font-weight:800;letter-spacing:6px;color:var(--primary-color)}.notification-history{margin-top:16px;padding-top:12px;border-top:1px solid #E1E4E8}.history-title{font-size:12px;font-weight:700;color:#667;margin:0 0 8px;text-transform:uppercase;letter-spacing:.04em}.notification-history ul{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:6px}.notification-history li{display:flex;align-items:center;justify-content:space-between;gap:8px;font-size:13px;padding:6px 10px;background:#f5f7fa;border-radius:8px}.history-label{font-weight:700;color:var(--primary-color)}.history-time{color:#667}.history-elapsed{color:#999;font-size:12px}.history-screen{max-width:480px;margin:0 auto;padding:24px 16px 64px}.history-records{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:10px}.history-records li{background:#fff;border-radius:12px;padding:14px 16px;box-shadow:0 1px 4px #0000000f}.history-records-main{display:flex;justify-content:space-between;align-items:baseline;margin-bottom:6px}.history-records-main span{color:#667;font-size:13px}.history-records-meta{display:flex;flex-wrap:wrap;gap:12px;font-size:12px;color:#667}