:root, [data-theme="dark"] {
    --bg-body: #1a1d23;
    --bg-sidebar: #21252b;
    --bg-card: #282c34;
    --bg-input: #2d3139;
    --bg-hover: #333842;
    --border: #3a3f47;
    --text: #e4e6eb;
    --text-dim: #8b949e;
    --accent: #4bc58f;
    --accent-hover: #3da876;
    --danger: #ff6b6b;
    --warning: #ffd43b;
    --info: #4dabf7;
    --shadow: 0 4px 24px rgba(0,0,0,.25);
    --radius: 10px;
}
[data-theme="light"] {
    --bg-body: #f0f2f5;
    --bg-sidebar: #ffffff;
    --bg-card: #ffffff;
    --bg-input: #f0f2f5;
    --bg-hover: #e9ecef;
    --border: #dce0e5;
    --text: #1a1d23;
    --text-dim: #6b7280;
    --accent: #3d766d;
    --accent-hover: #2d5a53;
    --danger: #e03131;
    --warning: #f59f00;
    --info: #1c7ed6;
    --shadow: 0 4px 24px rgba(0,0,0,.08);
}
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{font-size:14px}
body{font-family:'Inter',system-ui,sans-serif;background:var(--bg-body);color:var(--text);display:flex;min-height:100vh;transition:background .3s,color .3s}
a{color:var(--accent);text-decoration:none}
a:hover{color:var(--accent-hover)}
img{max-width:100%}
input,select,textarea,button{font-family:inherit;font-size:inherit}

/* ── Sidebar ── */
.sidebar{width:250px;background:var(--bg-sidebar);border-right:1px solid var(--border);display:flex;flex-direction:column;position:fixed;top:0;left:0;bottom:0;z-index:100;transition:transform .3s}
.sidebar-brand{display:flex;align-items:center;gap:12px;padding:20px 20px 10px}
.sidebar-logo{width:36px;height:36px;border-radius:8px}
.sidebar-brand-text{font-weight:700;font-size:1.15rem;letter-spacing:-.3px}
.sidebar-nav{flex:1;overflow-y:auto;padding:10px 8px}
.nav-link{display:flex;align-items:center;gap:12px;padding:10px 14px;border-radius:var(--radius);color:var(--text-dim);font-weight:500;transition:all .2s;margin-bottom:2px}
.nav-link i{font-size:1.3rem}
.nav-link:hover,.nav-link.active{background:var(--bg-hover);color:var(--accent)}
.nav-link.active{font-weight:600}

/* ── Sidebar Footer ── */
.sidebar-footer{border-top:1px solid var(--border);padding:14px}
.sidebar-user-card{display:flex;align-items:center;gap:10px;margin-bottom:12px}
.sidebar-avatar-wrap{position:relative;cursor:pointer;width:40px;height:40px;flex-shrink:0}
.sidebar-avatar{width:40px;height:40px;border-radius:50%;object-fit:cover;border:2px solid var(--accent)}
.avatar-overlay{position:absolute;inset:0;background:rgba(0,0,0,.5);border-radius:50%;display:none;align-items:center;justify-content:center;color:#fff;font-size:1rem}
.sidebar-avatar-wrap:hover .avatar-overlay{display:flex}
.sidebar-user-name{font-weight:600;font-size:.9rem;display:block;line-height:1.3}
.sidebar-user-role{font-size:.75rem;color:var(--text-dim)}
.sidebar-controls{display:flex;flex-direction:column;gap:8px}
.duty-selector{position:relative}
.duty-btn{width:100%;display:flex;align-items:center;gap:8px;padding:8px 12px;background:var(--bg-input);border:1px solid var(--border);border-radius:var(--radius);color:var(--text);cursor:pointer;font-size:.85rem}
.duty-btn .duty-dot{width:8px;height:8px;border-radius:50%;background:var(--duty-color);flex-shrink:0}
.duty-btn i{margin-left:auto}
.duty-dropdown{display:none;position:absolute;bottom:100%;left:0;right:0;background:var(--bg-card);border:1px solid var(--border);border-radius:var(--radius);padding:4px;margin-bottom:4px;box-shadow:var(--shadow);z-index:50}
.duty-dropdown.show{display:block}
.duty-option{display:flex;align-items:center;gap:8px;width:100%;padding:8px 12px;background:none;border:none;color:var(--text);cursor:pointer;border-radius:6px;font-size:.85rem}
.duty-option:hover,.duty-option.active{background:var(--bg-hover)}
.duty-option .duty-dot{width:8px;height:8px;border-radius:50%;flex-shrink:0}
.sidebar-action-btns{display:flex;gap:4px}
.sidebar-action-btn{flex:1;display:flex;align-items:center;justify-content:center;padding:8px;background:var(--bg-input);border:1px solid var(--border);border-radius:var(--radius);color:var(--text-dim);cursor:pointer;transition:all .2s;font-size:1.1rem}
.sidebar-action-btn:hover{color:var(--accent);background:var(--bg-hover)}

/* ── Main Content ── */
.main-content{margin-left:250px;flex:1;min-height:100vh;display:flex;flex-direction:column}
.topbar{display:none;padding:12px 20px;background:var(--bg-sidebar);border-bottom:1px solid var(--border)}
.sidebar-toggle{background:none;border:none;color:var(--text);font-size:1.5rem;cursor:pointer}
.page-inner{padding:28px;flex:1}
.page-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:24px;flex-wrap:wrap;gap:12px}
.page-title{font-size:1.6rem;font-weight:700;letter-spacing:-.3px}
.header-actions{display:flex;gap:8px;flex-wrap:wrap}

/* ── Buttons ── */
.btn{display:inline-flex;align-items:center;gap:6px;padding:9px 18px;border-radius:var(--radius);border:none;font-weight:600;font-size:.85rem;cursor:pointer;transition:all .2s}
.btn-primary{background:var(--accent);color:#fff}.btn-primary:hover{background:var(--accent-hover)}
.btn-danger{background:var(--danger);color:#fff}.btn-danger:hover{opacity:.85}
.btn-outline{background:transparent;border:1px solid var(--border);color:var(--text)}.btn-outline:hover{border-color:var(--accent);color:var(--accent)}
.btn-sm{padding:6px 12px;font-size:.8rem}
.btn-icon{background:none;border:none;color:var(--text-dim);cursor:pointer;padding:4px;font-size:1.1rem;transition:color .2s}
.btn-icon:hover{color:var(--accent)}
.btn-icon.danger:hover{color:var(--danger)}

/* ── Cards ── */
.grid{display:grid;gap:16px}
.grid-4{grid-template-columns:repeat(auto-fill,minmax(240px,1fr))}
.grid-3{grid-template-columns:repeat(auto-fill,minmax(300px,1fr))}
.grid-2{grid-template-columns:repeat(auto-fill,minmax(400px,1fr))}
.card{background:var(--bg-card);border:1px solid var(--border);border-radius:var(--radius);padding:20px;transition:box-shadow .2s}
.card:hover{box-shadow:var(--shadow)}
.stat-card{position:relative;overflow:hidden}
.stat-card::after{content:'';position:absolute;top:0;right:0;width:60px;height:60px;border-radius:0 0 0 60px;opacity:.1}
.stat-label{font-size:.8rem;color:var(--text-dim);font-weight:500;margin-bottom:8px;text-transform:uppercase;letter-spacing:.5px}
.stat-value{font-size:1.8rem;font-weight:800;line-height:1.2}
.stat-icon{position:absolute;top:16px;right:16px;font-size:1.8rem;color:var(--accent);opacity:.4}

/* ── Tables ── */
.table-container{background:var(--bg-card);border:1px solid var(--border);border-radius:var(--radius);overflow:hidden}
.table-toolbar{display:flex;justify-content:space-between;align-items:center;padding:16px;gap:12px;flex-wrap:wrap;border-bottom:1px solid var(--border)}
.table-filters{display:flex;gap:8px;flex-wrap:wrap;align-items:center}
.filter-input{padding:8px 12px;background:var(--bg-input);border:1px solid var(--border);border-radius:var(--radius);color:var(--text);font-size:.85rem;min-width:120px}
.filter-input:focus{outline:none;border-color:var(--accent)}
.table-scroll{overflow-x:auto}
table{width:100%;border-collapse:collapse}
th,td{padding:12px 16px;text-align:left;border-bottom:1px solid var(--border);white-space:nowrap}
th{font-weight:600;color:var(--text-dim);font-size:.8rem;text-transform:uppercase;letter-spacing:.5px;cursor:pointer;user-select:none;position:relative}
th:hover{color:var(--accent)}
th .sort-icon{margin-left:4px;font-size:.7rem}
tbody tr{transition:background .15s}
tbody tr:hover{background:var(--bg-hover)}
tbody tr:last-child td{border-bottom:none}
.badge{display:inline-block;padding:4px 10px;border-radius:20px;font-size:.75rem;font-weight:600}
.badge-success{background:rgba(75,197,143,.15);color:#4bc58f}
.badge-warning{background:rgba(255,212,59,.15);color:#ffd43b}
.badge-danger{background:rgba(255,107,107,.15);color:#ff6b6b}
.badge-info{background:rgba(77,171,247,.15);color:#4dabf7}

/* ── Modal ── */
.modal-backdrop{display:none;position:fixed;inset:0;background:rgba(0,0,0,.6);z-index:200;align-items:center;justify-content:center;backdrop-filter:blur(4px)}
.modal-backdrop.show{display:flex}
.modal{background:var(--bg-card);border:1px solid var(--border);border-radius:16px;width:90%;max-width:520px;max-height:90vh;overflow-y:auto;box-shadow:var(--shadow);animation:modalIn .25s ease}
@keyframes modalIn{from{opacity:0;transform:translateY(20px)}to{opacity:1;transform:translateY(0)}}
.modal-header{display:flex;justify-content:space-between;align-items:center;padding:20px 24px;border-bottom:1px solid var(--border)}
.modal-header h3{font-size:1.1rem;font-weight:700}
.modal-body{padding:24px}
.modal-footer{padding:16px 24px;border-top:1px solid var(--border);display:flex;justify-content:flex-end;gap:8px}

/* ── Forms ── */
.form-group{margin-bottom:16px}
.form-group label{display:block;font-weight:600;font-size:.85rem;margin-bottom:6px;color:var(--text-dim)}
.form-control{width:100%;padding:10px 14px;background:var(--bg-input);border:1px solid var(--border);border-radius:var(--radius);color:var(--text);transition:border-color .2s}
.form-control:focus{outline:none;border-color:var(--accent);box-shadow:0 0 0 3px rgba(75,197,143,.15)}
.form-row{display:grid;grid-template-columns:1fr 1fr;gap:12px}
select.form-control{cursor:pointer}
textarea.form-control{resize:vertical;min-height:80px}

/* ── Toast ── */
.toast{position:fixed;top:20px;right:20px;z-index:999;display:flex;align-items:center;gap:10px;padding:14px 20px;background:var(--bg-card);border:1px solid var(--border);border-radius:var(--radius);box-shadow:var(--shadow);animation:slideIn .3s ease}
.toast.success{border-left:4px solid var(--accent)}.toast.success i{color:var(--accent)}
.toast.error{border-left:4px solid var(--danger)}.toast.error i{color:var(--danger)}
.toast button{background:none;border:none;color:var(--text-dim);cursor:pointer}
@keyframes slideIn{from{opacity:0;transform:translateX(30px)}to{opacity:1;transform:translateX(0)}}

/* ── Auth Pages ── */
.auth-page{display:flex;align-items:center;justify-content:center;min-height:100vh;padding:20px}
.auth-card{background:var(--bg-card);border:1px solid var(--border);border-radius:16px;padding:40px;width:100%;max-width:420px;box-shadow:var(--shadow)}
.auth-logo{display:flex;flex-direction:column;align-items:center;gap:12px;margin-bottom:32px}
.auth-logo img{width:56px;height:56px;border-radius:12px}
.auth-logo h1{font-size:1.4rem;font-weight:800}
.auth-logo p{color:var(--text-dim);font-size:.9rem}
.auth-link{text-align:center;margin-top:20px;font-size:.85rem;color:var(--text-dim)}
.alert{padding:12px 16px;border-radius:var(--radius);margin-bottom:16px;font-size:.85rem;display:flex;align-items:center;gap:8px}
.alert-error{background:rgba(255,107,107,.1);color:var(--danger);border:1px solid rgba(255,107,107,.2)}
.alert-success{background:rgba(75,197,143,.1);color:var(--accent);border:1px solid rgba(75,197,143,.2)}

/* ── Landing Page ── */
.landing-nav{display:flex;justify-content:space-between;align-items:center;padding:16px 32px;background:var(--bg-sidebar);border-bottom:1px solid var(--border)}
.landing-logo{display:flex;align-items:center;gap:12px}
.landing-logo img{width:36px;height:36px;border-radius:8px}
.landing-logo span{font-weight:700;font-size:1.15rem}
.landing-actions{display:flex;gap:8px}
.landing-body{padding:32px;max-width:1200px;margin:0 auto;width:100%}
.landing-hero{text-align:center;padding:40px 0 32px}
.landing-hero h2{font-size:2rem;font-weight:800;margin-bottom:8px}
.landing-hero p{color:var(--text-dim);font-size:1rem}

/* ── Stars ── */
.star-picker{display:flex;gap:4px}
.star-picker .star{font-size:1.5rem;cursor:pointer;color:var(--border);transition:color .15s}
.star-picker .star.active{color:#ffd43b}

/* ── Responsive ── */
@media(max-width:768px){
    .sidebar{transform:translateX(-100%)}
    .sidebar.open{transform:translateX(0)}
    .main-content{margin-left:0}
    .topbar{display:flex!important}
    .grid-4{grid-template-columns:1fr 1fr}
    .form-row{grid-template-columns:1fr}
    .page-header{flex-direction:column;align-items:flex-start}
}
@media(max-width:480px){
    .grid-4{grid-template-columns:1fr}
}