:root {
  color-scheme: dark;
  --bg: #07080c;
  --card: #12141c;
  --border: #2a2e3b;
  --text: #f4f5f7;
  --muted: #9aa3b5;
  --accent: #6ea8ff;
  --danger: #ff7b8a;
  --input: #0c0e14;
  --hover: #1a1e29;
  font-family: "Segoe UI", system-ui, sans-serif;
}

* {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  min-height: 100%;
  background: var(--bg);
  color: var(--text);
}

body.login {
  display: flex;
  align-items: center;
  justify-content: center;
}

body.app {
  padding: 32px 16px 48px;
}

.card {
  width: min(420px, calc(100% - 32px));
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 32px 28px;
  box-shadow: 0 24px 80px rgba(0, 0, 0, 0.45);
}

.shell {
  width: min(1100px, 100%);
  margin: 0 auto;
  display: grid;
  gap: 20px;
}

.account-card,
.browser-card {
  width: 100%;
}

.account-card {
  padding: 28px;
}

.browser-card {
  padding: 28px;
}

h1 {
  margin: 0 0 24px;
  font-size: 1.75rem;
  font-weight: 650;
  letter-spacing: -0.03em;
  text-align: center;
}

h2 {
  margin: 0 0 14px;
  font-size: 1.05rem;
  font-weight: 650;
  letter-spacing: -0.02em;
  color: var(--text);
}

form {
  display: grid;
  gap: 14px;
}

label {
  display: grid;
  gap: 6px;
  font-size: 0.85rem;
  color: var(--muted);
}

input {
  width: 100%;
  border: 1px solid var(--border);
  background: var(--input);
  color: var(--text);
  border-radius: 10px;
  padding: 12px 14px;
  font-size: 1rem;
}

input:focus {
  outline: 2px solid var(--accent);
  border-color: transparent;
}

button {
  margin-top: 6px;
  border: 0;
  border-radius: 10px;
  padding: 12px 16px;
  background: var(--accent);
  color: #081018;
  font-size: 1rem;
  font-weight: 650;
  cursor: pointer;
}

button:disabled {
  opacity: 0.65;
  cursor: wait;
}

.error {
  min-height: 1.25rem;
  margin: 0;
  color: var(--danger);
  font-size: 0.9rem;
}

.status {
  min-height: 1.2rem;
  margin: 0 0 12px;
  color: var(--muted);
  font-size: 0.9rem;
}

.status.loading {
  color: var(--muted);
}

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

.meta {
  display: grid;
  gap: 10px;
  color: var(--muted);
}

.meta strong {
  color: var(--text);
  font-weight: 600;
}

.mailbox-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 12px;
  margin-bottom: 8px;
}

.mailbox-card {
  margin: 0;
  text-align: left;
  background: var(--input);
  color: var(--text);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 16px;
  font-size: 0.92rem;
  font-weight: 600;
  line-height: 1.35;
  box-shadow: none;
}

.mailbox-card:hover {
  background: var(--hover);
}

.mailbox-card.selected {
  border-color: var(--accent);
  box-shadow: 0 0 0 1px var(--accent);
}

.mailbox-address {
  display: block;
  overflow-wrap: break-word;
  word-break: break-word;
}

.folders-section,
.messages-section {
  margin-top: 28px;
}

.tabs {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.tab {
  margin: 0;
  background: var(--input);
  color: var(--muted);
  border: 1px solid var(--border);
  border-radius: 999px;
  padding: 8px 14px;
  font-size: 0.9rem;
  font-weight: 600;
}

.tab:hover {
  color: var(--text);
}

.tab.selected {
  background: var(--accent);
  color: #081018;
  border-color: var(--accent);
}

.table-wrap {
  overflow: auto;
  border: 1px solid var(--border);
  border-radius: 12px;
}

table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.95rem;
}

th,
td {
  padding: 12px 14px;
  text-align: left;
  border-bottom: 1px solid var(--border);
  vertical-align: top;
}

th {
  color: var(--muted);
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  background: var(--input);
}

tbody tr:last-child td {
  border-bottom: 0;
}

tbody tr:hover td {
  background: var(--hover);
}