/* =========================================
   Teplomery — Main Stylesheet
   ========================================= */

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
    --bg:         #0f172a;
    --bg-card:    #1e293b;
    --bg-sidebar: #0f172a;
    --border:     #334155;
    --text:       #e2e8f0;
    --text-muted: #94a3b8;
    --primary:    #3b82f6;
    --primary-h:  #2563eb;
    --success:    #22c55e;
    --warning:    #f59e0b;
    --danger:     #ef4444;
    --cold:       #38bdf8;
    --hot:        #f97316;
    --radius:     10px;
    --sidebar-w:  240px;
}

body { font-family: system-ui, -apple-system, sans-serif; background: var(--bg); color: var(--text); font-size: 14px; line-height: 1.6; }
a { color: var(--primary); text-decoration: none; }
a:hover { text-decoration: underline; }
code { font-family: monospace; background: rgba(255,255,255,.08); padding: 2px 6px; border-radius: 4px; font-size: 12px; }

/* ---- Auth pages ---- */
.auth-page { display: flex; align-items: center; justify-content: center; min-height: 100vh; }
.auth-card { background: var(--bg-card); border: 1px solid var(--border); border-radius: var(--radius); padding: 40px; width: 100%; max-width: 400px; }
.auth-logo { display: flex; align-items: center; gap: 10px; margin-bottom: 28px; color: var(--primary); }
.auth-logo h1 { font-size: 22px; font-weight: 700; }
.auth-logo svg { flex-shrink: 0; }
.auth-subtitle { color: var(--text-muted); margin-bottom: 20px; font-size: 13px; }
.auth-links { margin-top: 18px; text-align: center; font-size: 13px; color: var(--text-muted); }

/* ---- App layout ---- */
.app-layout { display: flex; min-height: 100vh; }

.sidebar { width: var(--sidebar-w); background: var(--bg-sidebar); border-right: 1px solid var(--border); display: flex; flex-direction: column; position: fixed; top: 0; left: 0; height: 100vh; overflow-y: auto; z-index: 100; }
.sidebar-logo { display: flex; align-items: center; gap: 10px; padding: 20px 18px; color: var(--primary); font-weight: 700; font-size: 16px; border-bottom: 1px solid var(--border); }
.sidebar-nav { list-style: none; padding: 10px 0; flex: 1; }
.sidebar-nav .nav-label { padding: 12px 18px 4px; font-size: 11px; text-transform: uppercase; letter-spacing: .08em; color: var(--text-muted); }
.sidebar-nav li a { display: flex; align-items: center; gap: 10px; padding: 9px 18px; color: var(--text-muted); border-radius: 0; transition: background .15s, color .15s; }
.sidebar-nav li a svg { width: 16px; height: 16px; flex-shrink: 0; stroke: currentColor; fill: none; stroke-width: 2; }
.sidebar-nav li a:hover, .sidebar-nav li a.active { background: rgba(59,130,246,.12); color: var(--primary); text-decoration: none; }

.sidebar-footer { padding: 16px 18px; border-top: 1px solid var(--border); font-size: 13px; color: var(--text-muted); display: flex; justify-content: space-between; align-items: center; }
.btn-logout { color: var(--text-muted); font-size: 12px; }
.btn-logout:hover { color: var(--danger); }

.main-content { margin-left: var(--sidebar-w); flex: 1; padding: 28px 32px; }
.page-header { display: flex; align-items: center; justify-content: space-between; margin-bottom: 24px; gap: 16px; }
.page-header h2 { font-size: 20px; font-weight: 700; }
.header-meta { display: flex; align-items: center; gap: 12px; }
.refresh-indicator { font-size: 12px; color: var(--text-muted); background: var(--bg-card); border: 1px solid var(--border); padding: 4px 10px; border-radius: 20px; }

/* ---- Cards ---- */
.card { background: var(--bg-card); border: 1px solid var(--border); border-radius: var(--radius); padding: 20px; margin-bottom: 20px; }
.card-header { display: flex; align-items: center; justify-content: space-between; margin-bottom: 16px; }
.card-header h3 { font-size: 15px; font-weight: 600; }
.card-actions { display: flex; gap: 10px; }
.mt-4 { margin-top: 24px; }
.mb-3 { margin-bottom: 16px; }

/* ---- Stats grid ---- */
.stats-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(160px, 1fr)); gap: 16px; margin-bottom: 8px; }
.stat-card { background: var(--bg-card); border: 1px solid var(--border); border-radius: var(--radius); padding: 18px 20px; }
.stat-value { font-size: 28px; font-weight: 700; color: var(--primary); line-height: 1.1; }
.stat-label { color: var(--text-muted); font-size: 12px; margin-top: 4px; }
.stat-sub { font-size: 11px; color: var(--text-muted); margin-top: 2px; }

/* ---- Buttons ---- */
.btn { display: inline-flex; align-items: center; gap: 6px; padding: 8px 16px; border-radius: 7px; font-size: 13px; font-weight: 500; cursor: pointer; border: 1px solid transparent; transition: background .15s, opacity .15s; text-decoration: none; }
.btn:hover { opacity: .85; text-decoration: none; }
.btn-primary   { background: var(--primary); color: #fff; }
.btn-secondary { background: transparent; border-color: var(--border); color: var(--text); }
.btn-success   { background: var(--success); color: #fff; }
.btn-warning   { background: var(--warning); color: #000; }
.btn-danger    { background: var(--danger); color: #fff; }
.btn-full      { width: 100%; justify-content: center; }
.btn-sm        { padding: 5px 10px; font-size: 12px; }
.btn-rename    { background: none; border: none; cursor: pointer; color: var(--text-muted); padding: 2px 4px; border-radius: 4px; line-height: 1; }
.btn-rename:hover { color: var(--primary); background: rgba(59,130,246,.1); }

/* ---- Forms ---- */
.form-group { margin-bottom: 16px; }
.form-group label { display: block; margin-bottom: 6px; font-size: 13px; color: var(--text-muted); }
.form-group small { display: block; margin-top: 4px; font-size: 11px; color: var(--text-muted); }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.form-actions { display: flex; gap: 10px; margin-top: 20px; }
input[type=text], input[type=email], input[type=password], input[type=number], input[type=tel], input[type=date], select, textarea {
    width: 100%; background: var(--bg); border: 1px solid var(--border); border-radius: 7px; color: var(--text); padding: 9px 12px; font-size: 14px; transition: border-color .15s; outline: none;
}
input:focus, select:focus, textarea:focus { border-color: var(--primary); }
select option { background: var(--bg-card); }
.checkbox-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(180px, 1fr)); gap: 8px; margin-top: 6px; }
.checkbox-label { display: flex; align-items: center; gap: 8px; cursor: pointer; padding: 7px 10px; border: 1px solid var(--border); border-radius: 6px; font-size: 13px; }
.checkbox-label:hover { border-color: var(--primary); }
.checkbox-label input[type=checkbox] { width: auto; accent-color: var(--primary); }

/* ---- Alerts ---- */
.alert { padding: 12px 16px; border-radius: 8px; margin-bottom: 16px; font-size: 13px; border: 1px solid transparent; }
.alert-success { background: rgba(34,197,94,.12); border-color: rgba(34,197,94,.3); color: #86efac; }
.alert-error   { background: rgba(239,68,68,.12); border-color: rgba(239,68,68,.3); color: #fca5a5; }
.alert-info    { background: rgba(59,130,246,.12); border-color: rgba(59,130,246,.3); color: #93c5fd; }

/* ---- Badges ---- */
.badge { display: inline-block; padding: 2px 8px; border-radius: 20px; font-size: 11px; font-weight: 600; }
.badge-active   { background: rgba(34,197,94,.2); color: #86efac; }
.badge-pending  { background: rgba(245,158,11,.2); color: #fcd34d; }
.badge-disabled { background: rgba(100,116,139,.2); color: #94a3b8; }

/* ---- Table ---- */
.data-table { width: 100%; border-collapse: collapse; font-size: 13px; }
.data-table th { padding: 10px 14px; text-align: left; color: var(--text-muted); font-weight: 500; border-bottom: 1px solid var(--border); white-space: nowrap; }
.data-table td { padding: 10px 14px; border-bottom: 1px solid rgba(51,65,85,.5); vertical-align: middle; }
.data-table tr:last-child td { border-bottom: none; }
.data-table tr:hover td { background: rgba(255,255,255,.02); }
.actions { display: flex; gap: 6px; flex-wrap: wrap; }
.text-center { text-align: center; }
.text-muted { color: var(--text-muted); }

/* ---- Tabs ---- */
.tabs { display: flex; gap: 0; border-bottom: 1px solid var(--border); margin-bottom: 20px; }
.tab { padding: 10px 20px; color: var(--text-muted); font-size: 13px; font-weight: 500; border-bottom: 2px solid transparent; margin-bottom: -1px; transition: color .15s, border-color .15s; }
.tab:hover { color: var(--text); text-decoration: none; }
.tab.active { color: var(--primary); border-bottom-color: var(--primary); }

/* ---- Sensor cards ---- */
.sensor-card { background: var(--bg-card); border: 1px solid var(--border); border-radius: var(--radius); padding: 22px; margin-bottom: 22px; }
.sensor-card-header { display: flex; justify-content: space-between; align-items: flex-start; margin-bottom: 16px; }
.sensor-title { display: flex; align-items: center; gap: 8px; }
.sensor-title h3 { font-size: 16px; font-weight: 600; }
.sensor-meta { font-size: 12px; color: var(--text-muted); }

.sensor-values { display: flex; gap: 24px; margin-bottom: 18px; }
.value-block { text-align: center; background: rgba(255,255,255,.04); border-radius: 8px; padding: 14px 24px; min-width: 100px; border: 1px solid var(--border); }
.value-number { font-size: 36px; font-weight: 700; line-height: 1.1; }
.value-unit   { font-size: 16px; color: var(--text-muted); }
.value-label  { font-size: 11px; color: var(--text-muted); margin-top: 4px; text-transform: uppercase; letter-spacing: .06em; }
.temp-block.cold .value-number { color: var(--cold); }
.temp-block.hot  .value-number { color: var(--hot); }
.temp-block.normal .value-number { color: #4ade80; }
.humidity-block .value-number { color: #60a5fa; }

.chart-controls { display: flex; gap: 6px; margin-bottom: 12px; }
.range-btn { padding: 4px 12px; font-size: 12px; border-radius: 20px; border: 1px solid var(--border); background: transparent; color: var(--text-muted); cursor: pointer; transition: all .15s; }
.range-btn:hover, .range-btn.active { background: var(--primary); border-color: var(--primary); color: #fff; }
.chart-container { position: relative; height: 220px; }

/* ---- Modal ---- */
.modal { position: fixed; inset: 0; background: rgba(0,0,0,.6); display: flex; align-items: center; justify-content: center; z-index: 1000; }
.modal.hidden { display: none; }
.modal-box { background: var(--bg-card); border: 1px solid var(--border); border-radius: var(--radius); padding: 28px; width: 100%; max-width: 380px; }
.modal-box h3 { margin-bottom: 18px; font-size: 16px; }

/* ---- Empty state ---- */
.empty-state { text-align: center; padding: 60px 20px; color: var(--text-muted); }
.empty-state svg { display: block; margin: 0 auto 16px; opacity: .3; }

/* ---- Inline rename ---- */
.inline-edit { display: flex; gap: 6px; align-items: center; }
.inline-input { flex: 1; padding: 5px 10px; font-size: 13px; background: var(--bg); border: 1px solid var(--border); border-radius: 6px; color: var(--text); min-width: 160px; }
.inline-input:focus { border-color: var(--primary); outline: none; }

/* ---- Responsive ---- */
@media (max-width: 768px) {
    :root { --sidebar-w: 0px; }
    .sidebar { transform: translateX(-240px); width: 240px; transition: transform .2s; }
    .sidebar.open { transform: translateX(0); }
    .main-content { margin-left: 0; padding: 16px; }
    .form-row { grid-template-columns: 1fr; }
    .stats-grid { grid-template-columns: 1fr 1fr; }
    .sensor-values { gap: 12px; }
    .value-block { padding: 10px 14px; min-width: 80px; }
    .value-number { font-size: 28px; }
}