/* ===== Дизайн-система: переменные ===== */
:root,
[data-theme="light"] {
  --bg: #eef1f6;
  --bg-2: #e3e7ef;
  --card: #ffffff;
  --card-2: #f6f8fb;
  --text: #1b1f27;
  --muted: #6b7280;
  --border: #e2e6ec;
  --accent: #2f6bff;
  --accent-fg: #ffffff;
  --accent-soft: rgba(47, 107, 255, 0.1);
  --ok: #12864a;
  --ok-soft: rgba(18, 134, 74, 0.12);
  --warn: #b06000;
  --warn-soft: #fff6e6;
  --danger: #d23a3a;
  --shadow: 0 1px 3px rgba(20, 25, 40, 0.08), 0 8px 24px rgba(20, 25, 40, 0.06);
}

[data-theme="dark"] {
  --bg: #0e1016;
  --bg-2: #0a0c11;
  --card: #171b23;
  --card-2: #1e232d;
  --text: #e6e9f0;
  --muted: #929aa8;
  --border: #262c37;
  --accent: #4d84ff;
  --accent-fg: #ffffff;
  --accent-soft: rgba(77, 132, 255, 0.16);
  --ok: #3ecf8e;
  --ok-soft: rgba(62, 207, 142, 0.14);
  --warn: #e0a44a;
  --warn-soft: rgba(224, 164, 74, 0.12);
  --danger: #ff6b6b;
  --shadow: 0 1px 2px rgba(0, 0, 0, 0.4), 0 10px 30px rgba(0, 0, 0, 0.35);
}

* {
  box-sizing: border-box;
}

html,
body,
#root {
  height: 100%;
  margin: 0;
}

body {
  font-family: Inter, "Segoe UI", Avenir, system-ui, sans-serif;
  font-size: 14px;
  line-height: 1.5;
  color: var(--text);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

/* ===== Кастомная шапка окна (frameless) ===== */
.window-root {
  display: flex;
  flex-direction: column;
  height: 100%;
}

.titlebar {
  height: 34px;
  flex-shrink: 0;
  display: flex;
  justify-content: flex-end;
  align-items: stretch;
  background: var(--bg-2);
  border-bottom: 1px solid var(--border);
  user-select: none;
}

.titlebar-controls {
  display: flex;
}

.titlebar-btn {
  width: 46px;
  height: 100%;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border: none;
  background: transparent;
  color: var(--muted);
  cursor: pointer;
  padding: 0;
  border-radius: 0;
  transition: background 0.15s ease, color 0.15s ease;
}

.titlebar-btn:hover {
  background: var(--card-2);
  color: var(--text);
}

.titlebar-btn.close:hover {
  background: var(--danger);
  color: #fff;
}

/* ===== Каркас: сайдбар + контент ===== */
.app {
  display: flex;
  flex: 1;
  min-height: 0;
}

.sidebar {
  width: 220px;
  flex-shrink: 0;
  background: var(--bg-2);
  border-right: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  padding: 1rem 0.75rem;
  gap: 1rem;
}

.brand {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  padding: 0.4rem 0.5rem;
  font-weight: 700;
  font-size: 1.15rem;
}

.brand-logo {
  width: 2rem;
  height: 2rem;
  object-fit: contain;
  border-radius: 0.4rem;
  flex-shrink: 0;
}

.nav {
  display: flex;
  flex-direction: column;
  gap: 0.2rem;
}

.nav-item {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  padding: 0.55rem 0.6rem;
  border: none;
  background: transparent;
  color: var(--muted);
  border-radius: 9px;
  font-size: 0.92rem;
  cursor: pointer;
  text-align: left;
  width: 100%;
}

.nav-item:hover {
  background: var(--card-2);
  color: var(--text);
}

.nav-item.active {
  background: var(--accent-soft);
  color: var(--accent);
  font-weight: 600;
}

.nav-icon {
  font-size: 1rem;
}

.nav-item .dot {
  margin-left: auto;
}

.sidebar-foot {
  margin-top: auto;
  padding: 0.4rem 0.5rem;
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 0.45rem;
}

.core-badge {
  font-size: 0.75rem;
  color: var(--muted);
}

.core-badge.err {
  color: var(--danger);
}

.update-button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.35rem;
  max-width: 100%;
  padding: 0.42rem 0.62rem;
  border: 1px solid var(--accent);
  border-radius: 8px;
  background: var(--accent-soft);
  color: var(--accent);
  font: inherit;
  font-size: 0.72rem;
  font-weight: 600;
  cursor: pointer;
}

.update-button:hover:not(:disabled) {
  filter: brightness(1.08);
}

.update-button:disabled {
  cursor: wait;
  opacity: 0.7;
}

.dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--muted);
  display: inline-block;
}

.dot.ok {
  background: var(--ok);
  box-shadow: 0 0 0 3px var(--ok-soft);
}

.dot.busy {
  background: var(--warn);
}

.dot.err {
  background: var(--danger);
}

.content {
  flex: 1;
  overflow-y: auto;
  padding: 1.5rem 1.75rem;
}

/* ===== Карточки ===== */
.card,
.core-card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 1.25rem 1.4rem;
  box-shadow: var(--shadow);
  max-width: 760px;
}

.connection-page {
  display: flex;
  flex-direction: column;
  gap: 0.8rem;
  max-width: 760px;
}

.profile-picker-card {
  display: flex;
  align-items: center;
  gap: 0.65rem;
  min-height: 58px;
  padding: 0.65rem 0.8rem;
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 12px;
  box-shadow: var(--shadow);
}

.profile-picker-card label {
  color: var(--muted);
  font-size: 0.82rem;
  font-weight: 600;
}

.profile-picker-card select {
  flex: 1;
  min-width: 0;
}

.profile-picker-actions,
.conn-profile-actions {
  display: flex;
  gap: 0.4rem;
}

.compact-editor,
.connection-share {
  max-width: none;
}

.conn-layout {
  display: flex;
  align-items: center;
  gap: 1.5rem;
}

.conn-info {
  flex: 1 1 auto;
  min-width: 0;
}

.conn-logo {
  flex: 0 0 auto;
  width: 190px;
  height: 190px;
  object-fit: contain;
  opacity: 0.85;
  filter: grayscale(0.35);
  transition:
    opacity 0.25s ease,
    filter 0.25s ease;
}

.conn-logo.on {
  opacity: 1;
  filter: none;
}

.card h2,
.core-card h2 {
  margin: 0 0 1rem;
  font-size: 1.05rem;
  font-weight: 650;
}

.panel-head {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 0.5rem;
}

.panel-head h2 {
  margin: 0;
}

.panel-head-actions {
  display: flex;
  gap: 0.4rem;
}

/* ===== Кнопки ===== */
button {
  font-family: inherit;
  font-size: 0.88rem;
  padding: 0.42rem 0.8rem;
  border-radius: 9px;
  border: 1px solid var(--border);
  background: var(--card-2);
  color: var(--text);
  cursor: pointer;
  transition: background 0.12s, border-color 0.12s;
}

button:hover:not(:disabled) {
  border-color: var(--accent);
  color: var(--accent);
}

button:disabled {
  opacity: 0.55;
  cursor: default;
}

button.danger,
button.danger:hover:not(:disabled) {
  color: var(--danger);
  border-color: transparent;
}

button.danger:hover:not(:disabled) {
  border-color: var(--danger);
}

button.big {
  padding: 0.7rem 1.6rem;
  font-size: 1rem;
  font-weight: 600;
  border-radius: 11px;
  min-width: 200px;
}

button.big.primary,
button.primary {
  background: var(--accent);
  color: var(--accent-fg);
  border-color: var(--accent);
}

button.big.primary:hover:not(:disabled),
button.primary:hover:not(:disabled) {
  filter: brightness(1.08);
  color: var(--accent-fg);
}

.warn-action {
  align-self: flex-start;
  background: var(--warn);
  color: #fff;
  border-color: var(--warn);
}

/* ===== Поля ввода ===== */
input[type="text"],
input[type="password"],
input[type="number"],
input:not([type]),
select,
textarea {
  font-family: inherit;
  font-size: 0.9rem;
  padding: 0.45rem 0.6rem;
  border-radius: 9px;
  border: 1px solid var(--border);
  background: var(--card-2);
  color: var(--text);
  outline: none;
}

input:focus,
select:focus,
textarea:focus {
  border-color: var(--accent);
}

/* ===== Формы ===== */
.settings,
.form-grid,
.profile-form {
  display: flex;
  flex-direction: column;
  gap: 0.8rem;
}

.settings label,
.form-grid label,
.profile-form label {
  display: flex;
  flex-direction: column;
  gap: 0.3rem;
  font-size: 0.85rem;
  color: var(--muted);
}

.settings label.checkbox,
.form-grid label.checkbox,
.profile-form label.checkbox {
  flex-direction: row;
  align-items: center;
  gap: 0.5rem;
  color: var(--text);
}

.form-grid input,
.form-grid select,
.settings select,
.profile-form input,
.profile-form select {
  color: var(--text);
}

.profile-actions {
  display: flex;
  gap: 0.4rem;
  flex-wrap: wrap;
}

.profile-actions button {
  padding: 0.3rem 0.6rem;
  font-size: 0.82rem;
}

.row-2 {
  display: flex;
  gap: 0.6rem;
}

.row-2 > * {
  flex: 1;
  min-width: 0;
}

.advanced {
  border: 1px solid var(--border);
  border-radius: 9px;
  padding: 0.6rem 0.8rem;
  background: var(--card-2);
}

.advanced summary {
  cursor: pointer;
  font-size: 0.85rem;
  color: var(--muted);
  user-select: none;
}

.advanced[open] summary {
  margin-bottom: 0.6rem;
}

.field-hint {
  font-size: 0.75rem;
  color: var(--muted);
  font-weight: 400;
}

/* ===== Текстовые статусы ===== */
.hint {
  color: var(--muted);
  font-size: 0.82rem;
}

.error {
  color: var(--danger);
  word-break: break-word;
}

.ok {
  color: var(--ok);
  font-weight: 600;
}

.warn {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  padding: 0.7rem 0.85rem;
  border: 1px solid var(--warn);
  background: var(--warn-soft);
  border-radius: 10px;
  font-size: 0.85rem;
  color: var(--warn);
}

/* ===== Список профилей / подписок ===== */
.profile-list {
  list-style: none;
  padding: 0;
  margin: 0.5rem 0 0;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  max-height: 60vh;
  overflow-y: auto;
}

.profile {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 0.75rem;
  padding: 0.65rem 0.8rem;
  border: 1px solid var(--border);
  border-radius: 11px;
  background: var(--card-2);
}

.profile.active {
  border-color: var(--ok);
  background: var(--ok-soft);
}

.profile-info {
  display: flex;
  flex-direction: column;
  gap: 0.15rem;
  min-width: 0;
}

.profile-name {
  font-weight: 600;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.profile-sub {
  color: var(--muted);
  font-size: 0.8rem;
}

.badge {
  font-size: 0.68rem;
  font-weight: 600;
  color: var(--ok);
  background: var(--ok-soft);
  border-radius: 6px;
  padding: 0.1rem 0.45rem;
}

.auth-badge {
  margin-left: 0.35rem;
  cursor: help;
}

/* ===== Подключение ===== */
.conn-profile {
  font-weight: 600;
  font-size: 1.15rem;
  margin: 0.25rem 0;
}

.conn-address {
  margin: 0.1rem 0 0.55rem;
  color: var(--muted);
  font-size: 0.82rem;
}

.conn-profile-actions {
  margin-bottom: 0.7rem;
}

.conn-status {
  font-size: 0.9rem;
  margin: 0.25rem 0 0.9rem;
  color: var(--muted);
}

.conn-status.connected {
  color: var(--ok);
  font-weight: 600;
}

.conn-status.error {
  color: var(--danger);
  font-weight: 600;
}

.conn-status.connecting,
.conn-status.disconnecting {
  color: var(--warn);
}

.traffic {
  margin-top: 1rem;
}

.traffic-speeds {
  display: flex;
  gap: 1.5rem;
  font-variant-numeric: tabular-nums;
}

.traffic-speeds .speed {
  font-size: 1.05rem;
  font-weight: 600;
}

.traffic-speeds .down {
  color: var(--accent);
}

.traffic-speeds .up {
  color: var(--ok);
}

.traffic-totals {
  margin-top: 0.35rem;
  font-size: 0.8rem;
  color: var(--muted);
  font-variant-numeric: tabular-nums;
}

/* ===== Импорт / поделиться / приложения ===== */
.import-input {
  font-family: ui-monospace, "Cascadia Code", Consolas, monospace;
  font-size: 0.85rem;
  resize: vertical;
}

.share-box {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  margin: 0.5rem 0;
  padding: 0.7rem 0.85rem;
  border: 1px solid var(--border);
  border-radius: 11px;
  background: var(--card-2);
}

.share-box .import-input {
  width: 100%;
}

.share-box button {
  align-self: flex-start;
}

.share-formats {
  display: flex;
  gap: 0.35rem;
}

.share-formats button {
  align-self: auto;
  padding: 0.25rem 0.7rem;
  font-size: 0.8rem;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: transparent;
  color: var(--muted);
}

.share-formats button.active {
  background: var(--accent);
  border-color: var(--accent);
  color: var(--accent-fg);
}

.share-head {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 0.85rem;
  color: var(--muted);
}

.apps {
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
}

.app-add {
  display: flex;
  gap: 0.4rem;
}

.app-add input {
  flex: 1;
  min-width: 0;
}

.app-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 0.3rem;
  max-height: 9.5rem;
  overflow-y: auto;
}

.app-list li {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 0.35rem 0.6rem;
  border: 1px solid var(--border);
  border-radius: 8px;
  font-size: 0.85rem;
  background: var(--card-2);
}

.app-list button.danger {
  padding: 0.1rem 0.45rem;
}