@import url("https://fonts.googleapis.com/css2?family=Space+Grotesk:wght@400;500;600;700&display=swap");

* {
  box-sizing: border-box;
}

:root {
  --brand-primary: #ffc700;
  --brand-on-primary: #111827;
  --brand-secondary: #0b1220;
  --brand-accent: #2f80ff;

  --surface-bg: #f7f8fa;
  --surface-card: #ffffff;
  --line: #e5e7eb;
  --text-primary: #0b1220;
  --text-secondary: #4b5563;
  --text-muted: #9ca3af;
  --danger: #ef4444;
}

body {
  margin: 0;
  min-height: 100vh;
  font-family: "Space Grotesk", "SF Pro Text", "Segoe UI", sans-serif;
  color: var(--text-primary);
  background:
    radial-gradient(1200px circle at 6% -8%, rgba(255, 199, 0, 0.16), transparent 45%),
    radial-gradient(900px circle at 100% 0%, rgba(47, 128, 255, 0.11), transparent 42%),
    var(--surface-bg);
}

body.auth-pending #loginView,
body.auth-pending #mailLayout {
  display: none !important;
}

#app {
  min-height: 100vh;
  padding: 20px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.card {
  background: var(--surface-card);
  border: 1px solid var(--line);
  border-radius: 18px;
  box-shadow: 0 18px 36px rgba(11, 18, 32, 0.08);
}

.hidden {
  display: none !important;
}

.login-view {
  width: min(420px, 96vw);
  padding: 22px;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 4px;
}

.brand h1 {
  margin: 0;
  font-size: 26px;
}

.brand p {
  margin: 4px 0 0;
  color: var(--text-secondary);
  font-size: 14px;
}

.brand-mark {
  width: 44px;
  height: 44px;
  border-radius: 14px;
  display: grid;
  place-items: center;
  font-size: 22px;
  background: linear-gradient(135deg, #ffe26f, var(--brand-primary));
  color: var(--brand-on-primary);
}

label {
  display: flex;
  flex-direction: column;
  gap: 6px;
  font-size: 13px;
  color: var(--text-secondary);
}

input,
textarea,
button {
  font: inherit;
}

input,
textarea {
  width: 100%;
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 11px 12px;
  background: #fff;
  color: var(--text-primary);
}

input:focus,
textarea:focus {
  outline: 2px solid rgba(47, 128, 255, 0.2);
  border-color: var(--brand-accent);
}

button {
  border: 0;
  border-radius: 12px;
  padding: 10px 14px;
  cursor: pointer;
  background: var(--brand-primary);
  color: var(--brand-on-primary);
  font-weight: 600;
}

button:disabled {
  opacity: 0.6;
  cursor: wait;
}

.secondary-btn {
  background: #f8fafc;
  color: var(--text-primary);
  border: 1px solid var(--line);
}

.error {
  min-height: 18px;
  color: var(--danger);
  font-size: 13px;
}

.layout {
  width: min(1360px, 100%);
  display: grid;
  grid-template-columns: 280px minmax(0, 1fr);
  gap: 16px;
}

.sidebar {
  padding: 16px;
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.sidebar-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
}

.brand-small {
  font-size: 20px;
  font-weight: 700;
}

.folder-nav {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.folder {
  width: 100%;
  text-align: left;
  background: #ffffff;
  color: var(--text-primary);
  border: 1px solid var(--line);
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.folder.active {
  border-color: rgba(255, 199, 0, 0.65);
  background: rgba(255, 199, 0, 0.18);
}

.badge {
  min-width: 22px;
  height: 22px;
  border-radius: 999px;
  padding: 0 7px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 12px;
  font-weight: 700;
  background: var(--brand-secondary);
  color: #fff;
}

.sidebar-footer {
  margin-top: auto;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.profile-email {
  font-size: 13px;
  color: var(--text-secondary);
  word-break: break-word;
}

.logout-btn {
  background: #fff;
  color: var(--text-primary);
  border: 1px solid var(--line);
}

.mail-main {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.mail-header {
  padding: 14px 16px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}

.mail-header h2 {
  margin: 0;
  font-size: 20px;
}

.mail-grid {
  display: grid;
  grid-template-columns: 380px minmax(0, 1fr);
  gap: 12px;
  min-height: calc(100vh - 140px);
}

.message-list-card {
  padding: 14px;
  display: flex;
  flex-direction: column;
  gap: 12px;
  min-height: 0;
}

.list-meta {
  color: var(--text-secondary);
  font-size: 13px;
}

.message-list {
  display: flex;
  flex-direction: column;
  gap: 8px;
  overflow: auto;
  padding-right: 4px;
}

.message-item {
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 10px;
  background: #fff;
  cursor: pointer;
}

.message-item:hover {
  border-color: rgba(47, 128, 255, 0.45);
}

.message-item.active {
  border-color: rgba(255, 199, 0, 0.72);
  background: rgba(255, 199, 0, 0.16);
}

.message-item.unread .message-subject {
  font-weight: 700;
}

.message-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  margin-bottom: 6px;
  font-size: 12px;
  color: var(--text-secondary);
}

.message-subject {
  margin: 0;
  font-size: 15px;
}

.message-preview {
  margin: 6px 0 0;
  color: var(--text-secondary);
  font-size: 13px;
  line-height: 1.4;
}

.detail-card {
  padding: 14px 16px;
  min-height: 0;
  overflow: auto;
}

.empty {
  color: var(--text-muted);
  font-size: 15px;
  min-height: 280px;
  display: grid;
  place-items: center;
  text-align: center;
}

.detail-header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 10px;
}

.detail-header h3 {
  margin: 0;
  font-size: 22px;
}

.detail-actions {
  display: flex;
  gap: 8px;
}

.detail-meta {
  margin-top: 12px;
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 10px 12px;
  display: grid;
  gap: 7px;
  font-size: 13px;
}

.detail-body {
  margin: 12px 0 0;
  white-space: pre-wrap;
  font-family: "Space Grotesk", "SF Pro Text", "Segoe UI", sans-serif;
  line-height: 1.6;
  font-size: 15px;
  color: var(--text-primary);
}

.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(11, 18, 32, 0.45);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 20px;
  z-index: 40;
  backdrop-filter: blur(5px);
}

.compose-card {
  width: min(780px, 98vw);
  padding: 18px;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.compose-header h3 {
  margin: 0;
  font-size: 22px;
}

.compose-actions {
  display: flex;
  justify-content: flex-end;
  gap: 8px;
}

@media (max-width: 1200px) {
  .mail-grid {
    grid-template-columns: 340px minmax(0, 1fr);
  }
}

@media (max-width: 960px) {
  #app {
    padding: 12px;
  }

  .layout {
    grid-template-columns: 1fr;
  }

  .mail-grid {
    grid-template-columns: 1fr;
    min-height: auto;
  }

  .message-list-card {
    max-height: 46vh;
  }
}