:root, [data-theme="dark"] {
  --bg: #0a0a0f;
  --bg-card: #12121a;
  --border: #1e1e2e;
  --text: #e0e0e8;
  --text-muted: #6a6a7a;
  --accent: #7c6ff7;
  --green: #34d399;
  --red: #f87171;
  --radius: 12px;
}

[data-theme="light"] {
  --bg: #f5f5f7;
  --bg-card: #ffffff;
  --border: #e0e0e8;
  --text: #1a1a2e;
  --text-muted: #6a6a7a;
  --accent: #6a5ce0;
  --green: #22b783;
  --red: #e05555;
}

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

body {
  background: var(--bg);
  color: var(--text);
  font-family: "JetBrains Mono", "SF Mono", "Fira Code", "Cascadia Code", monospace;
  font-size: 14px;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

/* Header */
header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 20px 32px;
}

.header-tag {
  font-size: 11px;
  color: var(--text-muted);
  letter-spacing: 3px;
}

.header-right {
  display: flex;
  align-items: center;
  gap: 10px;
}

.theme-toggle {
  background: none;
  border: 1px solid var(--border);
  color: var(--text-muted);
  border-radius: 6px;
  padding: 6px 10px;
  font-size: 16px;
  cursor: pointer;
  transition: all 0.15s;
  font-family: inherit;
}

.theme-toggle:hover {
  border-color: var(--accent);
  color: var(--text);
}

.btn {
  background: none;
  border: 1px solid var(--border);
  color: var(--text-muted);
  border-radius: 6px;
  padding: 8px 16px;
  font-family: inherit;
  font-size: 11px;
  letter-spacing: 2px;
  cursor: pointer;
  transition: all 0.15s;
  text-decoration: none;
}

.btn:hover {
  border-color: var(--accent);
  color: var(--text);
  background: rgba(124, 111, 247, 0.1);
}

.btn-primary {
  background: var(--accent);
  border-color: var(--accent);
  color: #fff;
  font-weight: 600;
}

.btn-primary:hover {
  background: #6a5ce0;
  border-color: #6a5ce0;
  color: #fff;
}

/* Main */
main {
  flex: 1;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  padding: 40px 32px;
}

/* Hero */
.hero {
  text-align: center;
  margin-bottom: 60px;
}

.logo {
  font-size: clamp(48px, 12vw, 96px);
  font-weight: 300;
  letter-spacing: 4px;
  color: var(--text);
  line-height: 1;
  margin-bottom: 12px;
}

.dot {
  color: var(--accent);
}

.eye {
  display: inline-block;
  transform-origin: center 60%;
  animation: wink 5s infinite;
}

@keyframes wink {
  0%, 88%, 100% { transform: scaleY(1); }
  90% { transform: scaleY(0.08); }
  92% { transform: scaleY(1); }
  94% { transform: scaleY(0.08); }
  96% { transform: scaleY(1); }
}

.tagline {
  font-size: 13px;
  color: var(--text-muted);
  letter-spacing: 4px;
}

/* About */
.about {
  max-width: 600px;
  width: 100%;
}

.about-block {
  padding: 20px 0;
}

.about-block p {
  line-height: 1.7;
  color: var(--text-muted);
  font-size: 13px;
}

.about-block strong {
  color: var(--text);
}

.about-block em {
  color: var(--accent);
  font-style: normal;
}

.lang-label {
  font-size: 10px;
  letter-spacing: 3px;
  color: var(--accent);
  margin-bottom: 8px;
  font-weight: 600;
}

.pronunciation {
  margin-top: 8px;
  font-size: 12px;
  letter-spacing: 1px;
}

.about-divider {
  height: 1px;
  background: var(--border);
}

/* Footer */
footer {
  padding: 20px 32px;
  text-align: center;
}

.footer-text {
  font-size: 10px;
  color: var(--text-muted);
  letter-spacing: 4px;
}

/* Modal */
.modal-overlay {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.6);
  backdrop-filter: blur(4px);
  z-index: 100;
  justify-content: center;
  align-items: center;
}

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

.modal {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 32px;
  width: 100%;
  max-width: 360px;
}

.modal h2 {
  font-size: 14px;
  font-weight: 600;
  letter-spacing: 4px;
  margin-bottom: 24px;
  color: var(--text);
}

.modal input {
  width: 100%;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 10px 12px;
  color: var(--text);
  font-family: inherit;
  font-size: 13px;
  margin-bottom: 12px;
  outline: none;
  transition: border-color 0.15s;
}

.modal input:focus {
  border-color: var(--accent);
}

.modal input::placeholder {
  color: var(--text-muted);
}

.modal-actions {
  display: flex;
  gap: 8px;
  margin-top: 8px;
}

.login-msg {
  font-size: 11px;
  min-height: 16px;
  color: var(--red);
}

/* Responsive */
@media (max-width: 640px) {
  header { padding: 16px; }
  main { padding: 24px 16px; }
  .about { padding: 0 8px; }
}