/* ===== Базовые переменные тем ===== */
:root[data-theme="light"] {
  --bg: #f4f6f9;
  --surface: #ffffff;
  --surface-2: #f1f3f6;
  --surface-3: #e8ebf0;
  --border: #e1e5ea;
  --border-strong: #c9d0d8;
  --text: #1a1f2e;
  --text-muted: #5a6478;
  --text-dim: #8892a4;
  --accent: #4361ee;
  --accent-hover: #3a4fd1;
  --success: #2da44e;
  --success-bg: #dcfce7;
  --danger: #d62b3a;
  --danger-bg: #fde8ea;
  --warning: #d97706;
  --shadow: 0 1px 3px rgba(0,0,0,0.06), 0 1px 2px rgba(0,0,0,0.04);
  --shadow-lg: 0 4px 12px rgba(0,0,0,0.08);
}

:root[data-theme="dark"] {
  --bg: #0f1419;
  --surface: #161b22;
  --surface-2: #1c232c;
  --surface-3: #232b36;
  --border: #2d3441;
  --border-strong: #3d4654;
  --text: #e6eaf0;
  --text-muted: #9aa5b8;
  --text-dim: #6c7689;
  --accent: #5a72ff;
  --accent-hover: #7587ff;
  --success: #3fb950;
  --success-bg: rgba(63, 185, 80, 0.15);
  --danger: #f85149;
  --danger-bg: rgba(248, 81, 73, 0.15);
  --warning: #f0b232;
  --shadow: 0 1px 3px rgba(0,0,0,0.4), 0 1px 2px rgba(0,0,0,0.3);
  --shadow-lg: 0 4px 16px rgba(0,0,0,0.5);
}

/* ===== Reset ===== */
* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  font-size: 14px;
  line-height: 1.5;
  color: var(--text);
  background: var(--bg);
  min-height: 100vh;
}

h1, h2, h3, h4 { margin: 0; font-weight: 600; }
h1 { font-size: 22px; }
h2 { font-size: 18px; }
h3 { font-size: 15px; }

button {
  font: inherit;
  cursor: pointer;
}

input, textarea, select {
  font: inherit;
  color: inherit;
}

a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }

code {
  font-family: ui-monospace, "SF Mono", Menlo, Monaco, Consolas, monospace;
  font-size: 0.9em;
  background: var(--surface-2);
  padding: 1px 5px;
  border-radius: 3px;
}

/* ===== Layout ===== */
.container {
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 20px;
}

.app-header {
  background: var(--surface);
  border-bottom: 1px solid var(--border);
  position: sticky;
  top: 0;
  z-index: 50;
}
.header-inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-top: 16px;
  padding-bottom: 16px;
  gap: 12px;
}
.app-title { font-size: 18px; }
.header-right { display: flex; gap: 8px; align-items: center; }

.main {
  padding-top: 24px;
  padding-bottom: 64px;
  display: flex;
  flex-direction: column;
  gap: 20px;
}

/* ===== Card ===== */
.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 10px;
  box-shadow: var(--shadow);
}
.card-header {
  padding: 16px 20px;
  border-bottom: 1px solid var(--border);
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 12px;
  flex-wrap: wrap;
}
.card-header-actions {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-wrap: wrap;
}
.card-body {
  padding: 20px;
}
.section-title {
  margin-top: 20px;
  margin-bottom: 10px;
  font-size: 13px;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--text-muted);
}

/* ===== Buttons ===== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  padding: 8px 14px;
  border-radius: 6px;
  border: 1px solid var(--border-strong);
  background: var(--surface);
  color: var(--text);
  transition: background 0.15s, border-color 0.15s, opacity 0.15s;
  font-size: 13px;
  font-weight: 500;
  white-space: nowrap;
}
.btn:hover:not(:disabled) { background: var(--surface-2); }
.btn:disabled { opacity: 0.5; cursor: not-allowed; }
.btn-primary {
  background: var(--accent);
  border-color: var(--accent);
  color: #fff;
}
.btn-primary:hover:not(:disabled) { background: var(--accent-hover); border-color: var(--accent-hover); }
.btn-danger {
  background: var(--danger);
  border-color: var(--danger);
  color: #fff;
}
.btn-danger:hover:not(:disabled) { opacity: 0.9; }
.btn-ghost {
  background: transparent;
  border-color: transparent;
}
.btn-ghost:hover:not(:disabled) { background: var(--surface-2); }
.btn-block { width: 100%; }
.btn-sm {
  padding: 5px 10px;
  font-size: 12px;
}

.theme-toggle .theme-icon-dark { display: none; }
[data-theme="dark"] .theme-toggle .theme-icon-light { display: none; }
[data-theme="dark"] .theme-toggle .theme-icon-dark { display: inline; }

/* ===== Form ===== */
.field { display: flex; flex-direction: column; gap: 6px; }
.field-label { font-size: 12px; color: var(--text-muted); font-weight: 500; }
.input {
  padding: 8px 12px;
  border-radius: 6px;
  border: 1px solid var(--border-strong);
  background: var(--surface);
  color: var(--text);
  outline: none;
  transition: border-color 0.15s, box-shadow 0.15s;
}
.input:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px color-mix(in srgb, var(--accent) 20%, transparent);
}
.input-sm { padding: 6px 10px; width: 100px; }
.input-thread { width: 140px; padding: 4px 8px; font-size: 12px; }

.row {
  display: flex;
  gap: 12px;
  align-items: flex-end;
  flex-wrap: wrap;
}

.checkbox-inline, .radio {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  cursor: pointer;
  user-select: none;
}
.checkbox-inline input, .radio input { cursor: pointer; }

/* ===== Login ===== */
.login-wrap {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 20px;
}
.login-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 32px;
  width: 100%;
  max-width: 380px;
  box-shadow: var(--shadow-lg);
}
.login-title { text-align: center; margin-bottom: 4px; }
.login-subtitle {
  text-align: center;
  color: var(--text-muted);
  margin-top: 0;
  margin-bottom: 24px;
}
.login-card .field { margin-bottom: 16px; }

/* ===== Alerts ===== */
.alert {
  padding: 10px 14px;
  border-radius: 6px;
  margin-bottom: 16px;
  font-size: 13px;
}
.alert-error {
  background: var(--danger-bg);
  color: var(--danger);
  border: 1px solid color-mix(in srgb, var(--danger) 30%, transparent);
}

/* ===== Servers grid ===== */
.server-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
  gap: 10px;
}
.server-card {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 10px 14px;
  border: 1.5px solid var(--border);
  border-radius: 10px;
  background: var(--surface);
  transition: all 0.15s;
}
.server-card.active {
  border-color: var(--success);
  background: var(--success-bg);
}
.server-card.inactive {
  opacity: 0.55;
}
.server-card.inactive .server-flag { filter: grayscale(80%); }
.server-flag {
  font-size: 28px;
  line-height: 1;
  flex-shrink: 0;
}
.server-info {
  display: flex;
  flex-direction: column;
  gap: 2px;
  min-width: 0;
  flex: 1;
}
.server-city {
  font-weight: 600;
  font-size: 14px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.server-country {
  font-size: 12px;
  color: var(--text-muted);
}
.server-link {
  font-size: 11px;
  margin-left: auto;
  padding-left: 4px;
}

/* ===== Channel ===== */
.channel-item {
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 12px 14px;
  margin-bottom: 10px;
  background: var(--surface-2);
}
.channel-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
}
.channel-name {
  font-weight: 600;
  font-size: 14px;
}
.channel-info {
  display: flex;
  flex-direction: column;
  gap: 4px;
  min-width: 0;
  flex: 1;
}
.channel-thread {
  margin-top: 2px;
}
.thread-edit {
  display: inline-flex;
  align-items: center;
  gap: 6px;
}
.channel-meta {
  font-size: 12px;
  color: var(--text-muted);
}
.channel-badge {
  display: inline-block;
  padding: 2px 8px;
  font-size: 11px;
  border-radius: 4px;
  background: var(--accent);
  color: #fff;
  margin-left: 6px;
  font-weight: 500;
}
.channel-badge.guest { background: var(--text-dim); }
.channel-actions { display: flex; gap: 6px; flex-wrap: wrap; }
.subs-grid {
  margin-top: 10px;
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(140px, 1fr));
  gap: 6px;
}
.sub-chip {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 5px 10px;
  border: 1px solid var(--border);
  border-radius: 6px;
  background: var(--surface);
  cursor: pointer;
  font-size: 12px;
  user-select: none;
}
.sub-chip input { cursor: pointer; margin: 0; }

.add-channel { margin-top: 12px; }
.add-channel summary {
  list-style: none;
  display: inline-flex;
}
.add-channel summary::-webkit-details-marker { display: none; }
.add-channel-form {
  display: flex;
  gap: 8px;
  margin-top: 10px;
  flex-wrap: wrap;
}
.add-channel-form .input { flex: 1; min-width: 180px; }

/* ===== Logs ===== */
.log-filters {
  display: flex;
  gap: 16px;
  margin-bottom: 12px;
  font-size: 13px;
}
.log-window {
  height: 360px;
  overflow-y: auto;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: var(--surface-2);
  font-family: ui-monospace, "SF Mono", Menlo, Monaco, monospace;
  font-size: 12.5px;
}
.log-entry {
  padding: 6px 12px;
  border-bottom: 1px solid var(--border);
  display: flex;
  gap: 10px;
  align-items: center;
}
.log-entry:last-child { border-bottom: none; }
.log-entry.active { color: var(--success); }
.log-entry.inactive { color: var(--danger); }
.log-entry.error, .log-entry.recovered { color: var(--warning); }
.log-time { color: var(--text-muted); flex-shrink: 0; }
.log-flag { font-size: 16px; flex-shrink: 0; }
.log-status {
  margin-left: auto;
  font-size: 11px;
  text-transform: uppercase;
  font-weight: 600;
  padding: 2px 8px;
  border-radius: 4px;
}
.log-entry.active .log-status { background: var(--success-bg); }
.log-entry.inactive .log-status { background: var(--danger-bg); }

/* ===== Blocked IPs ===== */
.blocked-list { margin-top: 10px; }
.blocked-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 8px 12px;
  border: 1px solid var(--border);
  border-radius: 6px;
  background: var(--surface-2);
  margin-bottom: 6px;
  font-size: 13px;
}

/* ===== Misc ===== */
.muted { color: var(--text-muted); font-size: 13px; }
.small { font-size: 12px; }
.spinner {
  display: inline-block;
  width: 14px;
  height: 14px;
  border: 2px solid transparent;
  border-top-color: currentColor;
  border-radius: 50%;
  animation: spin 0.7s linear infinite;
}
@keyframes spin { to { transform: rotate(360deg); } }

.toast {
  position: fixed;
  bottom: 20px;
  right: 20px;
  background: var(--surface);
  border: 1px solid var(--border-strong);
  box-shadow: var(--shadow-lg);
  padding: 12px 18px;
  border-radius: 8px;
  font-size: 13px;
  max-width: 360px;
  z-index: 100;
  animation: slideIn 0.2s ease-out;
}
.toast.success { border-color: var(--success); color: var(--success); }
.toast.error { border-color: var(--danger); color: var(--danger); }
@keyframes slideIn {
  from { transform: translateY(20px); opacity: 0; }
  to { transform: translateY(0); opacity: 1; }
}

@media (max-width: 640px) {
  .container { padding: 0 12px; }
  .card-header { flex-direction: column; align-items: stretch; }
  .card-header-actions { justify-content: flex-end; }
  .server-grid { grid-template-columns: 1fr; }
}