:root {
  --navy:   #0B1E3D;
  --navy2:  #132848;
  --blue:   #1565C0;
  --accent: #00B4D8;
  --green:  #00C896;
  --orange: #FF8C00;
  --red:    #E53935;
  --gray1:  #F4F7FB;
  --gray2:  #E8EDF5;
  --gray3:  #C5CFE0;
  --gray4:  #8899BB;
  --text:   #1A2B4A;
  --white:  #FFFFFF;
}
*{box-sizing:border-box;margin:0;padding:0;}
body{font-family:'Noto Sans KR',sans-serif;background:var(--gray1);color:var(--text);font-size:14px;min-height:100vh;}

/* ── NAV ── */
.nav{background:var(--navy);color:white;padding:0 24px;height:54px;display:flex;align-items:center;justify-content:space-between;position:sticky;top:0;z-index:100;box-shadow:0 2px 8px rgba(0,0,0,.3);}
.nav-brand{font-size:16px;font-weight:700;color:var(--accent);}
.nav-user{font-size:13px;color:rgba(255,255,255,.7);display:flex;align-items:center;gap:12px;}
.nav-user a{color:rgba(255,255,255,.7);text-decoration:none;cursor:pointer;}
.nav-user a:hover{color:white;}

/* ── SIDEBAR (admin/mechanic) ── */
.layout{display:flex;min-height:calc(100vh - 54px);}
.sidebar{background:var(--navy2);width:200px;flex-shrink:0;padding:16px 0;}
.sidebar a{display:block;padding:10px 20px;color:rgba(255,255,255,.7);text-decoration:none;font-size:13px;border-left:3px solid transparent;transition:all .15s;}
.sidebar a:hover,.sidebar a.active{color:white;background:rgba(255,255,255,.06);border-left-color:var(--accent);}
.sidebar-section{font-size:10px;letter-spacing:2px;color:rgba(255,255,255,.3);padding:14px 20px 6px;text-transform:uppercase;}
.main{flex:1;padding:28px;overflow-x:auto;}

/* ── CARD ── */
.card{background:white;border-radius:10px;padding:22px;box-shadow:0 2px 8px rgba(0,0,0,.06);margin-bottom:20px;}
.card-title{font-size:15px;font-weight:700;color:var(--navy);border-left:4px solid var(--accent);padding-left:10px;margin-bottom:16px;}

/* ── STAT CARDS ── */
.stats{display:grid;grid-template-columns:repeat(auto-fill,minmax(150px,1fr));gap:14px;margin-bottom:24px;}
.stat{background:white;border-radius:10px;padding:18px;box-shadow:0 2px 8px rgba(0,0,0,.06);text-align:center;}
.stat-num{font-size:32px;font-weight:900;color:var(--navy);}
.stat-label{font-size:12px;color:var(--gray4);margin-top:4px;}
.stat.warn .stat-num{color:var(--orange);}
.stat.danger .stat-num{color:var(--red);}
.stat.good .stat-num{color:var(--green);}

/* ── TABLE ── */
.tbl-wrap{overflow-x:auto;border-radius:8px;box-shadow:0 2px 6px rgba(0,0,0,.06);}
table{width:100%;border-collapse:collapse;font-size:13px;background:white;}
thead tr{background:var(--navy);color:white;}
th{padding:10px 12px;text-align:left;font-weight:600;font-size:12px;white-space:nowrap;}
td{padding:9px 12px;border-bottom:1px solid var(--gray2);vertical-align:middle;}
tr:nth-child(even) td{background:var(--gray1);}
tr:hover td{background:#EBF5FF;cursor:pointer;}
.no-hover:hover td{background:inherit;cursor:default;}

/* ── FORMS ── */
.form-group{margin-bottom:14px;}
.form-group label{display:block;font-size:12px;font-weight:600;color:var(--navy2);margin-bottom:5px;}
.form-group label .req{color:var(--red);}
input[type=text],input[type=password],input[type=number],input[type=tel],
input[type=date],input[type=datetime-local],select,textarea{
  width:100%;padding:9px 12px;border:1px solid var(--gray3);border-radius:6px;
  font-size:13px;font-family:inherit;color:var(--text);background:white;
  transition:border-color .15s;}
input:focus,select:focus,textarea:focus{outline:none;border-color:var(--accent);}
textarea{resize:vertical;min-height:80px;}
.form-row{display:grid;grid-template-columns:1fr 1fr;gap:14px;}
.form-row-3{display:grid;grid-template-columns:1fr 1fr 1fr;gap:14px;}

/* ── CHECKBOXES ── */
.check-group{display:flex;flex-wrap:wrap;gap:8px;}
.check-item{display:flex;align-items:center;gap:6px;padding:7px 12px;background:var(--gray1);
  border:1px solid var(--gray3);border-radius:6px;cursor:pointer;font-size:13px;}
.check-item input{accent-color:var(--accent);}
.check-item:has(input:checked){background:#E3EDFF;border-color:var(--accent);}

/* ── BUTTONS ── */
.btn{display:inline-flex;align-items:center;gap:6px;padding:9px 18px;border-radius:7px;
  font-size:13px;font-weight:600;cursor:pointer;border:none;transition:all .15s;text-decoration:none;}
.btn-primary{background:var(--blue);color:white;}
.btn-primary:hover{background:#1251A3;}
.btn-accent{background:var(--accent);color:white;}
.btn-accent:hover{background:#009BBF;}
.btn-success{background:var(--green);color:white;}
.btn-danger{background:var(--red);color:white;}
.btn-outline{background:white;color:var(--navy);border:1px solid var(--gray3);}
.btn-outline:hover{background:var(--gray1);}
.btn-sm{padding:5px 12px;font-size:12px;}
.btn-lg{padding:13px 28px;font-size:15px;width:100%;}

/* ── BADGE / STATUS ── */
.badge{display:inline-block;padding:2px 8px;border-radius:12px;font-size:11px;font-weight:700;}
.s-pending_approval{background:#FFF3CD;color:#856404;}
.s-pending{background:#DBEAFE;color:#1565C0;}
.s-in_progress{background:#FEF3C7;color:#B45309;}
.s-done{background:#D1FAE5;color:#065F46;}
.s-waiting{background:#FFE4E4;color:#C0392B;}
.s-revisit{background:#EDE9FE;color:#5B21B6;}
.s-registered{background:#E0F7F1;color:#00875A;}
.s-reviewing{background:#DBEAFE;color:#1565C0;}
.s-developing{background:#FEF3C7;color:#B45309;}
.s-deployed{background:#D1FAE5;color:#065F46;}
.s-cost-pending{background:#FFF3CD;color:#856404;}
.s-cost-billed{background:#DBEAFE;color:#1565C0;}
.s-cost-waived{background:#F0F0F0;color:#555;}
.s-cost-settled{background:#D1FAE5;color:#065F46;}

/* ── ALERTS ── */
.alert{padding:12px 16px;border-radius:6px;margin-bottom:14px;font-size:13px;}
.alert-info{background:#E3EDFF;border-left:4px solid var(--accent);color:var(--navy);}
.alert-warn{background:#FFF8E6;border-left:4px solid var(--orange);color:#5A4000;}
.alert-success{background:#E8F8F2;border-left:4px solid var(--green);color:#00531A;}
.alert-danger{background:#FFE4E4;border-left:4px solid var(--red);color:#7A0000;}

/* ── PHOTO PREVIEW ── */
.photo-preview{display:flex;flex-wrap:wrap;gap:8px;margin-top:8px;}
.photo-preview img{width:80px;height:80px;object-fit:cover;border-radius:6px;border:1px solid var(--gray3);}

/* ── MODAL ── */
.modal-bg{position:fixed;inset:0;background:rgba(0,0,0,.5);z-index:200;display:flex;align-items:center;justify-content:center;padding:20px;}
.modal{background:white;border-radius:12px;padding:28px;max-width:600px;width:100%;max-height:90vh;overflow-y:auto;}
.modal-title{font-size:17px;font-weight:700;color:var(--navy);margin-bottom:18px;}
.modal-actions{display:flex;gap:10px;justify-content:flex-end;margin-top:20px;}
.hidden{display:none!important;}

/* ── PHOTO UPLOAD ── */
.upload-area{border:2px dashed var(--gray3);border-radius:8px;padding:18px;text-align:center;cursor:pointer;color:var(--gray4);transition:border-color .15s;}
.upload-area:hover{border-color:var(--accent);}

/* ── TIMELINE ── */
.timeline{padding-left:16px;border-left:2px solid var(--gray2);}
.tl-item{position:relative;padding:0 0 16px 16px;}
.tl-item::before{content:'';position:absolute;left:-6px;top:4px;width:10px;height:10px;border-radius:50%;background:var(--accent);}
.tl-time{font-size:11px;color:var(--gray4);margin-bottom:2px;}
.tl-text{font-size:13px;}

/* ── LOADING ── */
.spinner{display:inline-block;width:18px;height:18px;border:2px solid var(--gray3);border-top-color:var(--accent);border-radius:50%;animation:spin .7s linear infinite;}
@keyframes spin{to{transform:rotate(360deg);}}

/* ── RESPONSIVE ── */
@media(max-width:768px){
  .form-row,.form-row-3{grid-template-columns:1fr;}
  .sidebar{display:none;}
  .main{padding:16px;}
  .stats{grid-template-columns:repeat(2,1fr);}
}