:root {
  --bg: #0a0a0f;
  --panel: #12121a;
  --border: #2a2a3a;
  --accent: #00ffcc;
  --accent2: #7b61ff;
  --text: #e8e8f0;
  --muted: #5a5a7a;
  --danger: #ff4466;
  --mono: 'Space Mono', monospace;
  --sans: 'Noto Sans SC', sans-serif;
}

* { box-sizing: border-box; margin: 0; padding: 0; }

.warning-bar {
  position: fixed;
  top: 0; left: 0; right: 0;
  background: #ff4466;
  color: #fff;
  text-align: center;
  font-size: 13px;
  font-family: 'Noto Sans SC', sans-serif;
  font-weight: 700;
  padding: 8px 16px;
  z-index: 999;
  letter-spacing: 0.5px;
}

body {
  background: var(--bg);
  color: var(--text);
  font-family: var(--sans);
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: 80px 16px 60px;
  position: relative;
  overflow-x: hidden;
}

body::before {
  content: '';
  position: fixed;
  inset: 0;
  background-image:
    linear-gradient(var(--border) 1px, transparent 1px),
    linear-gradient(90deg, var(--border) 1px, transparent 1px);
  background-size: 40px 40px;
  opacity: 0.3;
  pointer-events: none;
  z-index: 0;
}

body::after {
  content: '';
  position: fixed;
  top: -200px;
  left: 50%;
  transform: translateX(-50%);
  width: 700px;
  height: 400px;
  background: radial-gradient(ellipse, rgba(0,255,204,0.07) 0%, transparent 70%);
  pointer-events: none;
  z-index: 0;
}

.container {
  width: 100%;
  max-width: 680px;
  position: relative;
  z-index: 1;
}

header {
  text-align: center;
  margin-bottom: 40px;
  animation: fadeDown 0.6s ease both;
}

.logo {
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 4px;
  color: var(--accent);
  text-transform: uppercase;
  margin-bottom: 10px;
  opacity: 0.8;
}

h1 {
  font-size: 32px;
  font-weight: 700;
  letter-spacing: -1px;
  color: var(--text);
}

h1 span { color: var(--accent); }

.subtitle {
  margin-top: 8px;
  font-size: 13px;
  color: var(--muted);
  font-weight: 300;
}

.card {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 28px;
  margin-bottom: 16px;
  animation: fadeUp 0.6s ease both;
}

.card:nth-child(2) { animation-delay: 0.1s; }
.card:nth-child(3) { animation-delay: 0.2s; }

.card-label {
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: 3px;
  color: var(--muted);
  text-transform: uppercase;
  margin-bottom: 14px;
}

.email-display {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-wrap: wrap;
}

.email-box {
  flex: 1;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 14px 18px;
  font-family: var(--mono);
  font-size: 17px;
  color: var(--accent);
  letter-spacing: 0.5px;
  min-width: 0;
  word-break: break-all;
  transition: border-color 0.3s;
  position: relative;
  overflow: hidden;
}

.email-box::before {
  content: '';
  position: absolute;
  left: 0; top: 0; bottom: 0;
  width: 3px;
  background: var(--accent);
  border-radius: 3px 0 0 3px;
}

.email-box.refreshing {
  opacity: 0.4;
  transform: scale(0.98);
  transition: all 0.15s;
}

.btn-row {
  display: flex;
  gap: 10px;
  flex-shrink: 0;
}

button {
  cursor: pointer;
  font-family: var(--sans);
  font-size: 13px;
  font-weight: 700;
  border: none;
  border-radius: 8px;
  padding: 12px 18px;
  transition: all 0.2s;
  white-space: nowrap;
}

button:disabled {
  opacity: 0.4;
  cursor: not-allowed;
}

.btn-copy {
  background: var(--accent);
  color: #000;
}

.btn-copy:hover:not(:disabled) {
  background: #00e6b8;
  transform: translateY(-1px);
}

.btn-copy.copied { background: #00cc99; }

.btn-refresh {
  background: transparent;
  color: var(--text);
  border: 1px solid var(--border);
}

.btn-refresh:hover:not(:disabled) {
  border-color: var(--accent2);
  color: var(--accent2);
  transform: translateY(-1px);
}

.btn-refresh svg {
  vertical-align: middle;
  margin-right: 4px;
}

.status-bar {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-top: 14px;
  font-size: 12px;
  color: var(--muted);
  font-family: var(--mono);
}

.dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--accent);
  animation: pulse 2s infinite;
}

.inbox-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 16px;
}

.badge {
  background: var(--accent2);
  color: #fff;
  font-size: 10px;
  font-family: var(--mono);
  padding: 3px 8px;
  border-radius: 20px;
}

.mail-list {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.mail-item {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 16px;
  cursor: pointer;
  transition: border-color 0.2s, transform 0.2s;
  animation: fadeUp 0.3s ease both;
}

.mail-item:hover {
  border-color: var(--accent2);
  transform: translateX(4px);
}

.mail-from {
  font-family: var(--mono);
  font-size: 12px;
  color: var(--accent);
  margin-bottom: 5px;
}

.mail-subject {
  font-size: 14px;
  font-weight: 700;
  margin-bottom: 4px;
}

.mail-preview {
  font-size: 12px;
  color: var(--muted);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.mail-time {
  font-family: var(--mono);
  font-size: 10px;
  color: var(--muted);
  float: right;
  margin-top: -30px;
}

.empty-state {
  text-align: center;
  padding: 40px 0;
  color: var(--muted);
}

.empty-state .icon {
  font-size: 36px;
  margin-bottom: 12px;
  opacity: 0.4;
}

.empty-state p {
  font-size: 13px;
  font-family: var(--mono);
}

.modal-overlay {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.7);
  backdrop-filter: blur(4px);
  z-index: 100;
  align-items: center;
  justify-content: center;
  padding: 20px;
}

.modal-overlay.show { display: flex; }

.modal {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 28px;
  width: 100%;
  max-width: 540px;
  max-height: 80vh;
  overflow-y: auto;
  animation: fadeUp 0.3s ease both;
}

.modal-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  margin-bottom: 20px;
}

.modal-from {
  font-family: var(--mono);
  font-size: 11px;
  color: var(--accent);
  margin-bottom: 6px;
}

.modal-subject {
  font-size: 18px;
  font-weight: 700;
}

.btn-close {
  background: transparent;
  color: var(--muted);
  font-size: 20px;
  padding: 4px 8px;
  border: 1px solid var(--border);
  border-radius: 6px;
  flex-shrink: 0;
}

.btn-close:hover { color: var(--danger); border-color: var(--danger); }

.modal-body {
  font-size: 14px;
  line-height: 1.8;
  color: var(--text);
  white-space: pre-wrap;
  word-break: break-word;
}

footer {
  margin-top: 40px;
  text-align: center;
  font-family: var(--mono);
  font-size: 11px;
  color: var(--muted);
  z-index: 1;
  position: relative;
}

@keyframes fadeDown {
  from { opacity: 0; transform: translateY(-16px); }
  to   { opacity: 1; transform: translateY(0); }
}
@keyframes fadeUp {
  from { opacity: 0; transform: translateY(16px); }
  to   { opacity: 1; transform: translateY(0); }
}
@keyframes pulse {
  0%, 100% { opacity: 1; }
  50%       { opacity: 0.3; }
}
@keyframes spin {
  from { transform: rotate(0deg); }
  to   { transform: rotate(360deg); }
}

.spinning { animation: spin 0.5s linear; }

@media (max-width: 480px) {
  .email-display { flex-direction: column; align-items: stretch; }
  .btn-row { justify-content: stretch; }
  .btn-row button { flex: 1; }
  .email-box { font-size: 14px; }
}