:root{
  --blue:#4f6ef2;
  --blue-dark:#3b5bdb;
  --bg:#eef0f4;
  --card:#fff;
  --text:#222;
  --muted:#8a94a6;
  --line:#e6e8ee;
  --danger:#e8590c;
  --radius:10px;
}
*{box-sizing:border-box;-webkit-tap-highlight-color:transparent}
html,body{margin:0;padding:0}
body{
  font-family:"Segoe UI",Tahoma,"Sarabun",sans-serif;
  background:var(--bg);color:var(--text);
  max-width:480px;margin:0 auto;min-height:100vh;position:relative;
  padding-bottom:70px;
}

/* Top bar */
.appbar{
  background:var(--blue);color:#fff;display:flex;align-items:center;gap:10px;
  padding:12px 14px;position:sticky;top:0;z-index:20;
}
.appbar .avatar{width:32px;height:32px;border-radius:50%;background:#fff2;flex:0 0 auto;
  display:flex;align-items:center;justify-content:center;font-size:16px}
.appbar h1{font-size:17px;margin:0;font-weight:600;flex:1}
.appbar a,.appbar button{color:#fff;background:none;border:none;font-size:18px;cursor:pointer;text-decoration:none}

/* Cards */
.card{position:relative;background:var(--card);border-radius:var(--radius);margin:12px;box-shadow:0 1px 3px #0001;overflow:hidden}
.pad{padding:14px}

/* Car hero */
.car-hero{position:relative}
.car-hero img{width:100%;display:block;object-fit:cover;max-height:260px}
.car-hero .overlay{position:absolute;inset:0;display:flex;flex-direction:column;
  align-items:center;justify-content:center;color:#fff;text-shadow:0 2px 6px #000a;text-align:center}
.car-hero .overlay .plate{font-size:30px;font-weight:800}
.car-hero .overlay .model{font-size:19px;font-weight:600;margin-top:4px}

.field{padding:12px 16px;border-bottom:1px solid var(--line)}
.field:last-child{border-bottom:none}
.field label{display:block;font-size:12px;color:var(--muted);margin-bottom:2px}
.field .val{font-size:18px}

/* Usage list */
.log-item{display:flex;gap:12px;padding:12px 14px;border-bottom:1px solid var(--line);align-items:center;background:#fff}
.log-item .thumb{width:64px;height:48px;border-radius:6px;object-fit:cover;background:#dde;flex:0 0 auto}
.log-item .info{flex:1;min-width:0}
.log-item .date{color:var(--blue);font-weight:700;font-size:16px}
.log-item .driver{color:#333;font-size:14px}
.log-item .mile{color:var(--blue);font-weight:700;font-size:16px;margin-left:auto;text-align:right}
.log-item .mile .dist{display:block;color:#e8590c;font-weight:600;font-size:12px;margin-top:2px}
.log-item .acts{display:flex;gap:14px;margin-top:6px}
.log-item .acts a{color:var(--danger);font-size:18px;text-decoration:none}
.log-item .acts a.edit{color:var(--blue)}

/* Bottom nav */
.bottomnav{
  position:fixed;bottom:0;left:50%;transform:translateX(-50%);
  width:100%;max-width:480px;background:#fff;display:flex;border-top:1px solid var(--line);z-index:20;
}
.bottomnav a{flex:1;text-align:center;padding:8px 0;color:var(--muted);text-decoration:none;font-size:12px}
.bottomnav a.active{color:var(--blue)}
.bottomnav a .ic{display:block;font-size:20px;margin-bottom:2px}

/* FAB */
.fab{position:fixed;bottom:82px;left:50%;margin-left:150px;transform:translateX(-50%);
  width:56px;height:56px;border-radius:50%;background:var(--blue);color:#fff;
  display:flex;align-items:center;justify-content:center;font-size:28px;
  box-shadow:0 3px 8px #0003;text-decoration:none;z-index:25}

/* Forms */
.form{padding:16px}
.form h2{margin:0 0 16px;font-size:16px}
.form label.q{display:block;margin:16px 0 6px;font-size:14px;font-weight:600}
.form label.q .req{color:var(--danger)}
.form input[type=text],.form input[type=date],.form input[type=number],.form textarea{
  width:100%;padding:11px;border:1px solid var(--line);border-radius:8px;font-size:15px;font-family:inherit;background:#fff}
.form textarea{min-height:70px;resize:vertical}

/* toggle buttons (บริษัท/ส่วนตัว, เติม/ไม่เติม) */
.toggle{display:flex;gap:10px}
.toggle button{flex:1;padding:12px;border:1px solid var(--line);background:#fff;border-radius:8px;
  font-size:15px;cursor:pointer;font-family:inherit}
.toggle button.on{background:var(--blue);color:#fff;border-color:var(--blue)}

/* number stepper */
.stepper{display:flex;align-items:center;gap:8px}
.stepper input{flex:1;text-align:left}
.stepper button{width:44px;height:44px;border:1px solid var(--line);background:#fff;border-radius:8px;font-size:20px;cursor:pointer}

.section-box{border:1px solid var(--blue);border-radius:10px;padding:12px;margin:16px 0}

/* form footer */
.form-footer{display:flex;border-top:1px solid var(--line);position:sticky;bottom:0;background:#fff}
.form-footer button{flex:1;padding:15px;border:none;background:#fff;font-size:16px;cursor:pointer;font-family:inherit}
.form-footer button.save{color:var(--blue);font-weight:700}
.form-footer button.cancel{color:#555}

/* Login */
.login-wrap{padding:20px}
.login-card{background:#fff;border:2px solid var(--blue);border-radius:10px;padding:18px;margin-top:10px}
.login-banner{width:100%;border-radius:8px;background:#3a4a5a;color:#fff;padding:26px 16px;text-align:center;margin-bottom:20px}
.login-banner .t1{font-size:22px;font-weight:800;letter-spacing:1px}
.login-banner .t2{font-size:13px;opacity:.85}
.btn-primary{display:block;width:100%;padding:13px;background:var(--blue);color:#fff;border:none;border-radius:8px;font-size:16px;cursor:pointer}
.alert{background:#fdeaea;color:#c0392b;padding:10px 12px;border-radius:8px;margin:10px 0;font-size:14px}

.empty{text-align:center;color:var(--muted);padding:40px 20px}
.file-drop{border:1px dashed var(--line);border-radius:8px;padding:18px;text-align:center;color:var(--muted);cursor:pointer}
.file-drop img{max-width:100%;border-radius:6px;margin-top:8px}