:root {
    --bg: #0b0f14;
    --panel: rgba(18, 20, 23, 0.6);
    --surface: rgba(255,255,255,0.03);
    --accent: #00d6ff;
    --muted: #9aa4ad;
    --text: #e6eef6;
    --border: rgba(255,255,255,0.05);
    --glass: rgba(255,255,255,0.04);
    --shadow: 0 8px 30px rgba(2,6,23,0.6);
    --radius: 12px;
    --transition: 300ms cubic-bezier(.2,.9,.2,1);
}

/* Green theme override — apply by setting: document.documentElement.setAttribute('data-theme','green') */
html[data-theme="green"] {
    --bg: #0f1215;
    --panel: rgba(25, 28, 30, 0.6);
    --surface: rgba(255, 255, 255, 0.03);
    --accent: #3adb7f;
    --muted: #8a9199;
    --text: #e6f0e8;
    --border: rgba(58, 219, 127, 0.1);
    --glass: rgba(255, 255, 255, 0.04);
    --shadow: 0 8px 30px rgba(2, 6, 15, 0.6);
    --radius: 12px;
    --transition: 300ms cubic-bezier(.2,.9,.2,1);
}

*{box-sizing:border-box;margin:0;padding:0}
html,body{height:100%}
body{
    font-family: 'Inter', system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial;
    background:
      radial-gradient(900px 600px at 10% 10%, rgba(0,214,255,0.04), transparent 10%),
      radial-gradient(700px 500px at 90% 90%, rgba(176,38,255,0.03), transparent 8%),
      var(--bg);
    color:var(--text);
    -webkit-font-smoothing:antialiased;
    -moz-osx-font-smoothing:grayscale;
    min-height:100vh;
}


.sidebar {
    position:fixed;
    left:24px;
    top:24px;
    bottom:24px;
    width:260px;
    padding:1.6rem;
    background: linear-gradient(180deg, rgba(255,255,255,0.02), rgba(255,255,255,0.01));
    border-radius: calc(var(--radius) - 2px);
    border: 1px solid var(--border);
    backdrop-filter: blur(8px) saturate(120%);
    box-shadow: var(--shadow);
    display:flex;
    flex-direction:column;
    gap:1rem;
    z-index:1000;
    transition: transform var(--transition), opacity var(--transition);
}


.sidebar h1{
    font-family: 'JetBrains Mono', monospace;
    color:var(--accent);
    font-size:1.05rem;
    letter-spacing:1px;
    margin-bottom:0.2rem;
}


.sidebar .brand-sub {
    color:var(--muted);
    font-size:0.8rem;
    margin-bottom:0.8rem;
}

/* Nav */
.nav-menu{
    list-style:none;
    display:flex;
    flex-direction:column;
    gap:0.4rem;
    padding:0;
    margin:0;
}

.nav-menu a{
    display:flex;
    align-items:center;
    gap:0.75rem;
    padding:0.6rem 0.8rem;
    border-radius:10px;
    color:var(--text);
    text-decoration:none;
    font-weight:600;
    font-size:0.95rem;
    background:transparent;
    border:1px solid transparent;
    transition:all var(--transition);
    position:relative;
    overflow:hidden;
}

.nav-menu a i{
    color:var(--accent);
    min-width:20px;
    text-align:center;
    font-size:0.95rem;
}

.nav-menu a::before{
    content:'';
    position:absolute;
    left:0;
    top:0;
    height:100%;
    width:4px;
    background:linear-gradient(180deg,var(--accent),#7cfaff);
    transform:scaleY(0);
    transform-origin:top;
    transition:transform var(--transition);
    border-top-left-radius:8px;
    border-bottom-left-radius:8px;
}

.nav-menu a:hover{
    background:rgba(0,214,255,0.04);
    color:var(--accent);
    transform:translateY(-2px);
}

.nav-menu a:hover::before{
    transform:scaleY(1);
}
.nav-menu a.active{
    background:linear-gradient(90deg, rgba(0,214,255,0.03), transparent);
    color:var(--accent);
    box-shadow:0 6px 20px rgba(0,214,255,0.03);
}
.nav-menu a.active::before{
    transform:scaleY(1);
}

.sidebar-toggle{
    position:fixed;
    left:18px;
    top:18px;
    z-index:1201;
    border:0;
    background:transparent;
    color:var(--accent);
    font-size:1.25rem;
    padding:.5rem;
    border-radius:8px;
    display:none;
    cursor:pointer;
}

.sidebar-toggle:focus{
    outline:none;
    box-shadow:0 0 0 4px rgba(0,214,255,0.06);
}


.content{
    margin-left:calc(260px + 48px);
    padding:48px 5%;
    transition:margin-left var(--transition), padding var(--transition);
    min-height:100vh;
}


.admin-card{
    background:linear-gradient(180deg, rgba(255,255,255,0.02), rgba(255,255,255,0.01));
    border:1px solid var(--border);
    padding:1.25rem;
    border-radius:12px;
    box-shadow:0 6px 20px rgba(2,6,23,0.45);
    color:var(--text);
}


.admin-grid{
    display:grid;
    grid-template-columns:repeat(3,1fr);
    gap:1rem;
}   
@media (max-width:1100px){ .admin-grid{grid-template-columns:repeat(2,1fr)} }
@media (max-width:700px){ .admin-grid{grid-template-columns:1fr} }


.stat{
    display:flex;
    flex-direction:column;
    gap:.5rem;
    padding:1rem;
    border-radius:10px;
    background:linear-gradient(180deg, rgba(255,255,255,0.015), transparent);
    border:1px solid rgba(255,255,255,0.02);
}

.stat h3{
    font-size:0.95rem;color:var(--muted)
}
.stat .value{
    font-weight:800;
    font-size:1.6rem;
    color:var(--accent)
}


.badge{
    display:inline-block;
    padding:.25rem .5rem;
    border-radius:999px;
    background:rgba(255,255,255,0.03);
    color:var(--muted);
    font-weight:700;
    font-size:.8rem;
}


h2{
    margin:0 0 .5rem 0;
}

p{
    margin:0;
}


@media (max-width:900px){
    .sidebar{transform:translateX(-120%);left:12px;top:12px;bottom:auto;height:auto;width:86%;max-width:360px;border-radius:10px;padding:1rem;position:fixed}
    .sidebar.open{transform:translateX(0)}
    .sidebar-toggle{display:block}
    .content{margin-left:0;padding:2.5rem 4%}
}


@media (max-width:420px){
    .sidebar{width:92%}
    .nav-menu a{font-size:0.9rem;padding:.55rem .7rem}
    .content{padding:2rem 3%}
}


@media (prefers-reduced-motion: reduce){
    *{transition:none!important;animation:none!important}
}


.hidden { display: none !important; }

.input-inline {
    background: transparent;
    border: 1px solid rgba(255,255,255,0.04);
    color: var(--text);
    padding: 0.6rem 0.75rem;
    border-radius: 8px;
    font-size: 0.95rem;
    width: 100%;
    max-width: 420px;
}

.btn {
    background: linear-gradient(135deg, rgba(0,214,255,0.08), rgba(124,250,255,0.02));
    border: 1px solid rgba(0,214,255,0.06);
    color: var(--text);
    padding: 0.55rem 0.75rem;
    border-radius: 8px;
    cursor: pointer;
    font-weight:700;
    transition: transform var(--transition), box-shadow var(--transition);
}
.btn:hover { transform: translateY(-2px); box-shadow: 0 8px 30px rgba(0,214,255,0.03); }
.btn.ghost { background:transparent; border:1px dashed rgba(255,255,255,0.03); color:var(--muted) }
.btn.small{padding:.35rem .5rem;font-size:.85rem;border-radius:6px}


.table{width:100%;border-collapse:collapse;margin-top:0.5rem}
.table thead th{text-align:left;padding:.6rem .75rem;color:var(--muted);font-size:.85rem;border-bottom:1px solid rgba(255,255,255,0.02)}
.table tbody td{padding:.6rem .75rem;border-bottom:1px dashed rgba(255,255,255,0.02);font-size:.95rem}


.recent-activity{list-style:none;padding:0;margin:0;display:flex;flex-direction:column;gap:.5rem}
.recent-activity li{color:var(--text);font-size:.95rem}
.recent-activity .muted{color:var(--muted);font-size:.85rem;margin-right:.5rem}


.health-row{display:flex;flex-direction:column;gap:.4rem;margin-bottom:.6rem}
.health-row label{font-size:.9rem;color:var(--muted)}
.progress{height:10px;background:rgba(255,255,255,0.02);border-radius:999px;overflow:hidden;border:1px solid rgba(255,255,255,0.02)}
.progress-bar{height:100%;background:linear-gradient(90deg,var(--accent),#7cfaff);transition:width 600ms cubic-bezier(.2,.9,.2,1)}


.form-row{display:flex;flex-direction:column;gap:.35rem}
.form-row span{color:var(--muted);font-weight:700;font-size:.9rem}


.toast{
    position:fixed;right:24px;bottom:24px;background:rgba(0,0,0,0.6);color:var(--text);padding:.6rem .9rem;border-radius:10px;border:1px solid rgba(255,255,255,0.04);
    box-shadow:0 8px 30px rgba(2,6,23,0.6);z-index:1400;transition:transform 240ms ease,opacity 240ms ease;
}
.toast.hidden{opacity:0;transform:translateY(8px);pointer-events:none}
.toast:not(.hidden){opacity:1;transform:translateY(0)}


@media (max-width:900px){
    .admin-grid{grid-template-columns:repeat(2,1fr)}
}
@media (max-width:700px){
    .content{padding:20px 4%}
    .admin-grid{grid-template-columns:1fr}
    .admin-card .admin-grid{grid-template-columns:1fr}
}