/* ============================================================
   VARIABLES — edit these to retheme the entire dashboard
   ============================================================ */
:root {
  --bg:           #0a0a0a;
  --bg-surface:   #0f0f0f;
  --bg-card:      #141414;
  --bg-hover:     #1e1e1e;
  --bg-input:     #0c0c0c;
  --border:       #2e2e2e;
  --border-focus: #555555;
  --text:         #ebebeb;
  --text-muted:   #999999;
  --text-dim:     #555555;
  --accent:       #ffffff;
  --ok:           #6aaa6a;
  --warn:         #c8953a;
  --crit:         #c05050;
  --danger:       #e05555;
  --font:         'Courier New', Courier, monospace;
  --radius:       3px;
  --gap:          14px;
  --gap-lg:       22px;
}

/* ============================================================
   RESET & BASE
   ============================================================ */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html, body {
  height: 100%;
  background: var(--bg);
  color: var(--text);
  font-family: var(--font);
  font-size: 17px;
  line-height: 1.6;
}

a { color: var(--text); text-decoration: none; }
code { font-family: var(--font); }

/* ============================================================
   UTILITY
   ============================================================ */
.hidden { display: none !important; }

.ok   { color: var(--ok); }
.warn { color: var(--warn); }
.crit { color: var(--crit); }

/* ============================================================
   BUTTONS
   ============================================================ */
.btn {
  display: inline-block;
  padding: 7px 16px;
  background: transparent;
  border: 1px solid var(--border);
  color: var(--text);
  font-family: var(--font);
  font-size: 13px;
  letter-spacing: 0.08em;
  cursor: pointer;
  border-radius: var(--radius);
  transition: background 0.12s, border-color 0.12s;
  white-space: nowrap;
}
.btn:hover  { background: var(--bg-hover); border-color: var(--border-focus); }
.btn:active { background: #2a2a2a; }
.btn:disabled { opacity: 0.35; cursor: not-allowed; }

.btn-primary {
  background: var(--accent);
  border-color: var(--accent);
  color: var(--bg);
}
.btn-primary:hover { background: #cccccc; border-color: #cccccc; color: var(--bg); }

.btn-danger {
  border-color: #553333;
  color: var(--danger);
}
.btn-danger:hover  { background: #1a0a0a; border-color: #774444; }
.btn-danger:disabled { opacity: 0.3; }

.btn-sm { padding: 4px 10px; font-size: 12px; }

/* ============================================================
   FORMS
   ============================================================ */
.field-group {
  display: flex;
  flex-direction: column;
  gap: 5px;
}
.field-group label {
  font-size: 12px;
  letter-spacing: 0.1em;
  color: var(--text-muted);
}
.field-group input,
.field-group select,
.field-group textarea {
  background: var(--bg-input);
  border: 1px solid var(--border);
  color: var(--text);
  font-family: var(--font);
  font-size: 15px;
  padding: 8px 11px;
  border-radius: var(--radius);
  outline: none;
  width: 100%;
  transition: border-color 0.15s;
}
.field-group input:focus,
.field-group select:focus,
.field-group textarea:focus {
  border-color: var(--border-focus);
}
.field-group select option { background: var(--bg-card); }
.field-group textarea { resize: vertical; }

.form-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--gap);
  margin-bottom: var(--gap);
}
.field-full { grid-column: 1 / -1; }

.form-actions {
  display: flex;
  gap: var(--gap);
  align-items: center;
}

.form-result {
  margin-top: var(--gap);
  padding: 9px 13px;
  border: 1px solid var(--border);
  font-size: 14px;
}
.form-result.success { border-color: #3a5a3a; color: var(--ok); }
.form-result.error   { border-color: #5a3333; color: var(--crit); }

/* ============================================================
   LOGIN
   ============================================================ */
.login-overlay {
  position: fixed;
  inset: 0;
  background: var(--bg);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 1000;
}

.login-box {
  width: 380px;
  border: 1px solid var(--border);
  padding: 44px;
  background: var(--bg-card);
}

.login-title {
  font-size: 17px;
  letter-spacing: 0.3em;
  font-weight: normal;
  text-align: center;
  margin-bottom: 34px;
  color: var(--text);
}

.login-box form {
  display: flex;
  flex-direction: column;
  gap: var(--gap);
}

.login-error {
  padding: 9px 13px;
  border: 1px solid #5a3333;
  color: var(--crit);
  font-size: 14px;
  margin-bottom: 4px;
  line-height: 1.5;
}

.login-lockout {
  padding: 9px 13px;
  border: 1px solid #6a4a22;
  color: var(--warn);
  font-size: 14px;
  margin-bottom: 4px;
  line-height: 1.5;
}

.otp-boxes {
  display: flex;
  gap: 10px;
}
.otp-digit {
  width: 44px;
  height: 54px;
  text-align: center;
  font-size: 24px;
  font-family: var(--font);
  background: var(--bg-surface);
  border: 1px solid var(--border);
  color: var(--text);
  border-radius: var(--radius);
  caret-color: transparent;
}
.otp-digit:focus {
  outline: none;
  border-color: var(--accent);
}

/* ============================================================
   HEADER
   ============================================================ */
.header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 11px 22px;
  border-bottom: 1px solid var(--border);
  background: var(--bg-surface);
  position: sticky;
  top: 0;
  z-index: 100;
}

.header-left  { display: flex; align-items: center; gap: 18px; }
.header-right { display: flex; align-items: center; gap: 16px; }

.header-title {
  font-size: 14px;
  letter-spacing: 0.28em;
  font-weight: bold;
  color: var(--text);
}

.header-hostname {
  font-size: 14px;
  color: var(--text-muted);
  letter-spacing: 0.05em;
}

.header-time,
.header-uptime {
  font-size: 13px;
  color: var(--text-muted);
  letter-spacing: 0.05em;
}

/* ============================================================
   NAV TABS
   ============================================================ */
.nav-tabs {
  display: flex;
  flex-wrap: wrap;
  gap: 0;
  border-bottom: 1px solid var(--border);
  background: var(--bg-surface);
  padding: 0 14px;
  position: sticky;
  top: 45px;
  z-index: 99;
  overflow-x: auto;
}

.nav-tab {
  padding: 11px 17px;
  background: transparent;
  border: none;
  border-bottom: 2px solid transparent;
  color: var(--text-muted);
  font-family: var(--font);
  font-size: 13px;
  letter-spacing: 0.1em;
  cursor: pointer;
  white-space: nowrap;
  transition: color 0.12s, border-color 0.12s;
  margin-bottom: -1px;
}
.nav-tab:hover  { color: var(--text); }
.nav-tab.active { color: var(--accent); border-bottom-color: var(--accent); }

/* ============================================================
   MAIN CONTENT
   ============================================================ */
.app {
  display: flex;
  flex-direction: column;
  min-height: 100vh;
}

.main-content {
  flex: 1;
  padding: var(--gap-lg);
  max-width: 1600px;
  width: 100%;
  margin: 0 auto;
}

.section { display: none; }
.section.active { display: block; }

.section-header {
  display: flex;
  align-items: baseline;
  gap: 16px;
  margin-bottom: var(--gap-lg);
  border-bottom: 1px solid var(--border);
  padding-bottom: 11px;
}

.section-header h2 {
  font-size: 15px;
  font-weight: bold;
  letter-spacing: 0.2em;
  color: var(--text);
}

.updated-time {
  font-size: 12px;
  color: var(--text-dim);
  letter-spacing: 0.05em;
}

/* ============================================================
   GRID
   ============================================================ */
.grid {
  display: grid;
  gap: var(--gap);
  margin-bottom: var(--gap);
}
.grid-2 { grid-template-columns: repeat(2, 1fr); }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-4 { grid-template-columns: repeat(4, 1fr); }

@media (max-width: 1200px) {
  .grid-4 { grid-template-columns: repeat(2, 1fr); }
  .grid-3 { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 700px) {
  .grid-2, .grid-3, .grid-4 { grid-template-columns: 1fr; }
  .form-grid { grid-template-columns: 1fr; }
}

/* ============================================================
   CARDS
   ============================================================ */
.card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  padding: 18px 20px;
  border-radius: var(--radius);
}

.card-title {
  font-size: 12px;
  letter-spacing: 0.14em;
  color: var(--text-muted);
  margin-bottom: 12px;
  text-transform: uppercase;
}

.card-value {
  font-size: 28px;
  font-weight: bold;
  letter-spacing: 0.02em;
  line-height: 1.1;
}

.card-sub {
  font-size: 14px;
  color: var(--text-muted);
  margin-top: 5px;
}

.card-value.ok   { color: var(--ok); }
.card-value.warn { color: var(--warn); }
.card-value.crit { color: var(--crit); }

/* ============================================================
   PROGRESS BAR
   ============================================================ */
.progress-wrap {
  margin-top: 10px;
}
.progress-label {
  display: flex;
  justify-content: space-between;
  font-size: 13px;
  color: var(--text-muted);
  margin-bottom: 5px;
}
.progress-bar {
  height: 5px;
  background: var(--border);
  border-radius: 3px;
  overflow: hidden;
}
.progress-fill {
  height: 100%;
  background: var(--text-muted);
  transition: width 0.4s ease;
  border-radius: 3px;
}
.progress-fill.warn { background: var(--warn); }
.progress-fill.crit { background: var(--crit); }

/* ============================================================
   TABLES
   ============================================================ */
.table-wrap {
  overflow-x: auto;
  margin-bottom: var(--gap);
}

table {
  width: 100%;
  border-collapse: collapse;
  font-size: 15px;
}

th {
  text-align: left;
  padding: 7px 12px;
  font-size: 12px;
  letter-spacing: 0.1em;
  color: var(--text-muted);
  border-bottom: 1px solid var(--border);
  white-space: nowrap;
}

td {
  padding: 9px 12px;
  border-bottom: 1px solid var(--bg-hover);
  vertical-align: middle;
  color: var(--text);
}

tr:last-child td { border-bottom: none; }
tr:hover td { background: var(--bg-hover); }

.td-mono { font-family: var(--font); font-size: 14px; color: var(--text-muted); }
.td-pill { display: inline-block; padding: 2px 9px; border: 1px solid var(--border); border-radius: 10px; font-size: 12px; letter-spacing: 0.05em; }
.td-pill.up     { border-color: #3a6a3a; color: var(--ok); }
.td-pill.down   { border-color: #6a2222; color: var(--crit); }
.td-pill.warn   { border-color: #6a4a22; color: var(--warn); }
.td-pill.crit   { border-color: #6a2222; color: var(--crit); }
.td-pill.valid  { border-color: #3a6a3a; color: var(--ok); }
.td-pill.expiring { border-color: #6a4a22; color: var(--warn); }
.td-pill.expired  { border-color: #6a2222; color: var(--crit); }

/* ============================================================
   LOG BLOCKS
   ============================================================ */
.log-block {
  background: var(--bg-input);
  border: 1px solid var(--border);
  padding: 11px 13px;
  font-size: 14px;
  line-height: 1.75;
  color: var(--text-muted);
  font-family: var(--font);
  max-height: 300px;
  overflow-y: auto;
  word-break: break-all;
}

.log-line { display: block; }
.log-line:hover { color: var(--text); }
.log-line.ok   { color: var(--ok); }
.log-line.warn { color: var(--warn); }
.log-line.crit { color: var(--crit); }

/* ============================================================
   BAR CHARTS (inline horizontal)
   ============================================================ */
.bar-row {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 7px;
}
.bar-label {
  width: 90px;
  font-size: 14px;
  color: var(--text-muted);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.bar-track {
  flex: 1;
  height: 6px;
  background: var(--border);
  border-radius: 3px;
  overflow: hidden;
}
.bar-fill {
  height: 100%;
  background: #555;
  border-radius: 3px;
  transition: width 0.3s ease;
}
.bar-fill.warn { background: var(--warn); }
.bar-fill.crit { background: var(--crit); }
.bar-val { font-size: 14px; color: var(--text-muted); min-width: 38px; text-align: right; }

/* ============================================================
   CORE GRID (CPU cores)
   ============================================================ */
.core-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(64px, 1fr));
  gap: 7px;
  margin-top: 10px;
}
.core-item {
  text-align: center;
  font-size: 13px;
}
.core-label { color: var(--text-muted); margin-bottom: 3px; }
.core-val   { font-size: 16px; font-weight: bold; }
.core-val.warn { color: var(--warn); }
.core-val.crit { color: var(--crit); }

/* ============================================================
   SECTION-SPECIFIC: STORAGE
   ============================================================ */
.mount-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  padding: 16px 18px;
  margin-bottom: var(--gap);
  border-radius: var(--radius);
}
.mount-header {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  margin-bottom: 8px;
}
.mount-path { font-size: 15px; font-family: var(--font); color: var(--text); }
.mount-device { font-size: 13px; color: var(--text-muted); }
.mount-stats {
  display: flex;
  gap: 24px;
  font-size: 14px;
  color: var(--text-muted);
  margin-top: 8px;
}

/* ============================================================
   SECTION-SPECIFIC: DOCKER
   ============================================================ */
.docker-table td:first-child { font-weight: bold; }
.port-list { display: flex; flex-wrap: wrap; gap: 4px; }
.port-tag {
  font-size: 12px;
  padding: 1px 7px;
  border: 1px solid var(--border);
  border-radius: 2px;
  color: var(--text-muted);
  font-family: var(--font);
}

/* ============================================================
   SECTION-SPECIFIC: USERS
   ============================================================ */
.action-bar {
  display: flex;
  gap: var(--gap);
  margin-bottom: var(--gap);
  flex-wrap: wrap;
}

.form-panel {
  background: var(--bg-card);
  border: 1px solid var(--border);
  padding: 22px;
  margin-bottom: var(--gap-lg);
  border-radius: var(--radius);
}
.form-panel h3 {
  font-size: 13px;
  letter-spacing: 0.15em;
  margin-bottom: 16px;
  color: var(--text-muted);
}

.user-row-actions { display: flex; gap: 6px; flex-wrap: wrap; }

/* ============================================================
   SECTION-SPECIFIC: REBOOT
   ============================================================ */
.reboot-panel {
  max-width: 480px;
  display: flex;
  flex-direction: column;
  gap: var(--gap-lg);
}

.reboot-warning {
  border: 1px solid var(--border);
  padding: 16px;
  color: var(--text-muted);
  font-size: 15px;
  line-height: 1.75;
  border-radius: var(--radius);
}

.reboot-countdown {
  margin-top: var(--gap-lg);
  padding: 44px;
  border: 1px solid var(--border);
  text-align: center;
  border-radius: var(--radius);
}

.countdown-message { font-size: 15px; color: var(--text-muted); margin-bottom: 22px; }
.countdown-timer   { font-size: 66px; font-weight: bold; letter-spacing: 0.1em; line-height: 1; }
.countdown-status  { font-size: 14px; color: var(--text-muted); margin-top: 22px; }

/* ============================================================
   MODAL
   ============================================================ */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.88);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 500;
}

.modal {
  background: var(--bg-card);
  border: 1px solid var(--border);
  width: 460px;
  max-width: 95vw;
  border-radius: var(--radius);
}

.modal-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 15px 18px;
  border-bottom: 1px solid var(--border);
  font-size: 13px;
  letter-spacing: 0.12em;
  color: var(--text-muted);
}

.modal-body {
  padding: 22px 18px;
  font-size: 15px;
  line-height: 1.75;
  color: var(--text-muted);
}

.modal-footer {
  display: flex;
  gap: var(--gap);
  justify-content: flex-end;
  padding: 13px 18px;
  border-top: 1px solid var(--border);
}

/* ============================================================
   TERMINAL MODAL
   ============================================================ */
.terminal-modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.92);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 600;
}
.terminal-modal {
  background: #0a0a0a;
  border: 1px solid var(--border);
  width: 860px;
  max-width: 98vw;
  display: flex;
  flex-direction: column;
  border-radius: var(--radius);
}
.terminal-modal-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 11px 15px;
  border-bottom: 1px solid var(--border);
  font-size: 13px;
  letter-spacing: 0.1em;
  color: var(--text-muted);
  background: var(--bg-card);
}
.terminal-modal-header span { color: var(--text); }
#terminal-container {
  padding: 8px;
  min-height: 400px;
}
.terminal-modal-footer {
  padding: 11px 15px;
  border-top: 1px solid var(--border);
  display: flex;
  justify-content: flex-end;
  background: var(--bg-card);
}

/* ============================================================
   DEMO BANNER
   ============================================================ */
.demo-banner {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  background: var(--bg-surface);
  border-top: 1px solid var(--border);
  padding: 7px 22px;
  font-size: 13px;
  color: var(--text-muted);
  text-align: center;
  z-index: 200;
  letter-spacing: 0.04em;
}

/* ============================================================
   SSL / FIREWALL / MISC SPECIFICS
   ============================================================ */
.ssl-table .days-low  { color: var(--crit); }
.ssl-table .days-mid  { color: var(--warn); }

.blocked-ip-row td:first-child { font-family: var(--font); font-size: 14px; }

.stat-number {
  font-size: 30px;
  font-weight: bold;
}
.stat-label {
  font-size: 12px;
  color: var(--text-muted);
  letter-spacing: 0.1em;
  margin-top: 4px;
}

/* SSH keys fingerprint */
.key-fp {
  font-size: 12px;
  color: var(--text-dim);
  word-break: break-all;
  font-family: var(--font);
}

/* ============================================================
   NO HARDWARE INDICATORS (GPU, CPU temp sensor)
   ============================================================ */
.no-hw-badge {
  font-size: 12px;
  color: var(--text-muted);
  border: 1px solid #772222;
  letter-spacing: 0.08em;
  padding: 1px 7px;
  border-radius: 2px;
  vertical-align: middle;
}
.no-hw-msg {
  font-size: 14px;
  color: var(--text-dim);
  padding: 10px 0 4px;
}

/* CPU temp — no sensor */
.no-sensor-text {
  font-size: 22px;
  font-weight: bold;
  color: #cc3333;
  letter-spacing: 0.05em;
}
.no-sensor-reason {
  display: block;
  font-size: 13px;
  font-weight: bold;
  color: var(--text);
  line-height: 1.5;
  margin-top: 2px;
}

/* ============================================================
   SPARKLINES / IO HISTORY
   ============================================================ */
.io-sparklines {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--gap);
  margin-bottom: 4px;
}
.sparkline-wrap {
  display: flex;
  flex-direction: column;
  gap: 4px;
}
.sparkline-label {
  font-size: 12px;
  color: var(--text-muted);
  letter-spacing: 0.06em;
}
.sparkline-svg {
  display: block;
  width: 100%;
  overflow: visible;
}
.sparkline-empty {
  font-size: 13px;
  color: var(--text-dim);
  padding: 16px 0;
}

@media (max-width: 700px) {
  .io-sparklines { grid-template-columns: 1fr; }
}

/* ============================================================
   SPEEDTEST
   ============================================================ */
.speedtest-controls {
  display: flex;
  align-items: center;
  gap: 16px;
  margin-bottom: 16px;
}
.speedtest-status {
  font-size: 14px;
  color: var(--text-muted);
  letter-spacing: 0.05em;
}
.network-left-col {
  display: flex;
  flex-direction: column;
}
.speedtest-result {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--gap);
  padding: 16px 0 8px;
  border-top: 1px solid var(--border);
}
.speedtest-metric { text-align: center; }
.speedtest-val {
  font-size: 34px;
  font-weight: bold;
  letter-spacing: 0.02em;
  line-height: 1.1;
}
.speedtest-label {
  font-size: 12px;
  color: var(--text-muted);
  letter-spacing: 0.1em;
  margin-top: 4px;
}
@media (max-width: 700px) {
  .speedtest-result { grid-template-columns: repeat(2, 1fr); }
}

/* ============================================================
   NGINX — PLAIN ENGLISH
   ============================================================ */
.nginx-health {
  font-size: 15px;
  line-height: 1.75;
  padding: 11px 15px;
  border-left: 3px solid var(--border);
  color: var(--text);
  border-radius: 0 var(--radius) var(--radius) 0;
  background: var(--bg-surface);
}
.nginx-health.warn { border-color: var(--warn); }
.nginx-health.crit { border-color: var(--crit); }

.nginx-legend {
  display: flex;
  flex-wrap: wrap;
  gap: 12px 24px;
  margin-top: 12px;
}
.legend-item {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 14px;
  color: var(--text-muted);
}
.legend-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--text-muted);
  flex-shrink: 0;
}
.legend-dot.ok   { background: var(--ok); }
.legend-dot.warn { background: var(--warn); }
.legend-dot.crit { background: var(--crit); }

.nginx-code-bars { margin-top: 4px; }

/* ============================================================
   Scrollbar (webkit)
   ============================================================ */
::-webkit-scrollbar       { width: 6px; height: 6px; }
::-webkit-scrollbar-track { background: var(--bg); }
::-webkit-scrollbar-thumb { background: var(--border); border-radius: 3px; }
::-webkit-scrollbar-thumb:hover { background: var(--border-focus); }