:root{
    --primary:#0f4c81;
    --primary-dark:#0a3559;
    --secondary:#1f7a8c;
    --accent:#4cb5ae;
    --success:#1f8a4c;
    --warning:#c58b13;
    --danger:#c43d3d;
    --info:#0f7aa6;
    --dark:#1d2a38;
    --muted:#6b7786;
    --line:#d9e2ec;
    --bg:#f4f7fb;
    --card:#ffffff;
    --radius:18px;
    --shadow:0 14px 35px rgba(15,76,129,.10);
    --sidebar-width:280px;
    --font:'Inter',sans-serif;
}
*{box-sizing:border-box}
html,body{margin:0;padding:0;font-family:var(--font);background:var(--bg);color:var(--dark)}
a{color:var(--primary);text-decoration:none}
.layout{display:flex;min-height:100vh}
.sidebar{
    width:var(--sidebar-width);
    background:linear-gradient(180deg,#0d3960,#0f4c81 55%,#195b94);
    color:#fff;
    padding:26px 20px;
    position:sticky;top:0;height:100vh;
}
.brand{display:flex;gap:12px;align-items:center;margin-bottom:22px}
.brand-logo{
    width:52px;height:52px;border-radius:16px;
    background:rgba(255,255,255,.16);display:flex;align-items:center;justify-content:center;
    font-weight:800;font-size:18px
}
.brand-title{font-size:20px;font-weight:800}
.brand-subtitle{font-size:13px;opacity:.85}
.user-card{
    background:rgba(255,255,255,.10);border:1px solid rgba(255,255,255,.18);
    border-radius:16px;padding:14px;margin-bottom:18px;display:flex;flex-direction:column;gap:4px
}
.user-card small{opacity:.9}
.menu{display:flex;flex-direction:column;gap:8px}
.menu a{
    color:#fff;padding:12px 14px;border-radius:14px;
    background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.06)
}
.menu a:hover{background:rgba(255,255,255,.15)}
.content{flex:1;padding:28px}
.topbar{display:flex;justify-content:space-between;align-items:flex-start;gap:16px;margin-bottom:20px}
.topbar h1{margin:0 0 6px;font-size:30px}
.muted{color:var(--muted)}
.center{text-align:center}
.cards{
    display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:18px;margin-bottom:20px
}
.card{
    background:var(--card);border:1px solid #e7edf5;border-radius:var(--radius);
    padding:22px;box-shadow:var(--shadow);margin-bottom:20px
}
.stat span{display:block;color:var(--muted);margin-bottom:10px}
.stat strong{font-size:38px;line-height:1.1}
.btn{
    display:inline-flex;align-items:center;justify-content:center;gap:8px;
    padding:12px 18px;border-radius:14px;border:none;cursor:pointer;font-weight:700
}
.btn-primary{background:linear-gradient(180deg,var(--primary),var(--primary-dark));color:#fff}
.btn-light{background:#eef4fb;color:var(--primary)}
.btn-block{width:100%}
.form-grid{display:grid;gap:16px}
.form-grid.one{grid-template-columns:1fr}
.form-grid.two{grid-template-columns:repeat(2,1fr)}
.form-grid.three{grid-template-columns:repeat(3,1fr)}
.form-grid.four{grid-template-columns:repeat(4,1fr)}
.form-group{display:flex;flex-direction:column;gap:8px}
.form-group.full{grid-column:1/-1}
.form-group-end{display:flex;align-items:flex-end}
input,select,textarea{
    width:100%;padding:13px 14px;border:1px solid #ced7e2;border-radius:14px;
    background:#fff;font:inherit;color:var(--dark);outline:none
}
input:focus,select:focus,textarea:focus{border-color:var(--primary);box-shadow:0 0 0 3px rgba(15,76,129,.10)}
label{font-weight:700;color:#34495e}
textarea{resize:vertical;min-height:120px}
.table-responsive{overflow:auto}
.table{width:100%;border-collapse:collapse}
.table th,.table td{padding:14px 12px;border-bottom:1px solid var(--line);text-align:left;vertical-align:top}
.table th{font-size:13px;text-transform:uppercase;letter-spacing:.02em;color:#627181}
.badge{display:inline-block;padding:7px 10px;border-radius:999px;font-size:12px;font-weight:800;background:#eef4fb;color:#35506b}
.badge.warning{background:#fff3d9;color:#996100}
.badge.success{background:#dbf6e4;color:#176437}
.badge.primary{background:#dfeffd;color:#0f4c81}
.badge.info{background:#def6ff;color:#0f6f91}
.badge.secondary{background:#ece8ff;color:#5a46a8}
.badge.dark{background:#dce2ea;color:#344454}
.alert{padding:14px 16px;border-radius:14px;margin-bottom:16px;font-weight:600}
.alert.success{background:#e1f8e8;color:#15623a}
.alert.error{background:#fde3e3;color:#8a2020}
.alert.warning{background:#fff5db;color:#8c6200}
.ticket-grid{display:grid;grid-template-columns:1.2fr .9fr;gap:20px}
.detail-list{display:grid;gap:10px}
.timeline{display:flex;flex-direction:column;gap:14px}
.timeline-item{
    border:1px solid #e2eaf3;border-radius:16px;padding:16px;background:#fbfdff
}
.timeline-head{display:flex;flex-wrap:wrap;gap:10px;align-items:center;margin-bottom:10px;color:#516070}
.timeline-body{color:#233243}
.file-list{padding-left:18px}
.file-list li{margin-bottom:8px}
.justified{text-align:justify}
.checks{display:flex;flex-wrap:wrap;gap:12px}
.checks label{
    display:flex;align-items:center;gap:8px;padding:10px 12px;background:#f7fafd;border:1px solid #dce6f1;border-radius:12px
}
.color-box{display:inline-block;width:18px;height:18px;border-radius:4px;vertical-align:middle;margin-right:8px;border:1px solid #cfd8e2}
.login-page{
    background:radial-gradient(circle at top left,#d8e8fb,transparent 40%),linear-gradient(180deg,#f4f7fb,#e8f0f8);
    min-height:100vh;display:flex;align-items:center;justify-content:center;padding:24px
}
.login-wrapper{width:100%;max-width:520px}
.login-card{
    background:#fff;border:1px solid #e6edf5;border-radius:28px;padding:34px;box-shadow:0 20px 60px rgba(15,76,129,.15)
}
.login-brand{
    display:inline-block;background:#eaf3fb;color:var(--primary);font-weight:800;padding:8px 14px;border-radius:999px;margin-bottom:12px
}
.login-card h1{margin:0 0 8px;font-size:34px;text-align:center}
.login-note{
    margin-top:18px;padding:14px;border-radius:16px;background:#f7fafc;border:1px solid #e3ebf5;color:#4b5d6e
}
hr{border:none;border-top:1px solid var(--line);margin:18px 0}
@media (max-width: 1100px){
    .layout{display:block}
    .sidebar{width:auto;height:auto;position:relative}
    .content{padding:18px}
    .ticket-grid,.form-grid.two,.form-grid.three,.form-grid.four{grid-template-columns:1fr}
}


.btn-secondary{background:#eef4fb;color:var(--primary)}
.btn-success{background:linear-gradient(180deg,var(--success),#166534);color:#fff}
.btn-warning{background:linear-gradient(180deg,#d6a328,#b78007);color:#fff}
.btn-danger{background:linear-gradient(180deg,var(--danger),#992a2a);color:#fff}
.btn-sm{padding:9px 12px;border-radius:12px;font-size:13px}
.inline-form{display:inline}
.actions{display:flex;flex-wrap:wrap;gap:8px}
.section-title{margin:0 0 16px;font-size:22px}
.help-text{font-size:13px;color:var(--muted)}