:root {
  --bg:         #1a1a2e;
  --border-mid: #f7f7ff44;
  --text:       #f7f7ff;
  --text-dim:   #f7f7ff66;
  --green:      #00ff00;
  --red:        #ff0000;
}

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

html, body {
  height: 100%;
  background: var(--bg);
  color: var(--text);
  font-family: sans-serif;
  overflow: hidden;
}

/* ── Layout ───────────────────────────────────────────────── */
.login-wrap {
  height: 100%;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 1.5rem;
  padding: 2rem;
}

.login-wrap > .field,
.login-wrap > #playBtn {
  width: 100%;
  max-width: 340px;
}

.login-wrap > .login-header {
  margin-bottom: 1rem;
}

/* ── Header ───────────────────────────────────────────────── */
.login-header { text-align: center; }

.wordmark {
  font-family: sans-serif;
  font-weight: 900;
  font-size: clamp(2.8rem, 8vw, 5rem);
  letter-spacing: 0.25em;
  color: var(--text);
}

/* ── Avatar ───────────────────────────────────────────────── */
.avatar-ring {
  width: 96px;
  height: 96px;
  border-radius: 50%;
  border: 1px solid var(--text);
  transition: border-color 0.2s, box-shadow 0.2s;
}

.avatar-ring.loading {
  border-color: var(--green);
  animation: ringPulse 1.2s ease-in-out infinite;
}

.avatar-ring.loaded {
  border-color: var(--green);
  box-shadow: 0 0 12px #00ff0066;
}

@keyframes ringPulse {
  0%, 100% { box-shadow: 0 0 0 0 #00ff0000; }
  50%      { box-shadow: 0 0 12px 2px #00ff0066; }
}

#avatar {
  width: 100%;
  height: 100%;
  border-radius: 50%;
  display: none;
  object-fit: cover;
}

#avatar.visible { display: block; }

.avatar-placeholder {
  width: 100%;
  height: 100%;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 2rem;
  color: var(--text);
}

.avatar-placeholder.hidden { display: none; }

/* ── Field ────────────────────────────────────────────────── */
.field {
  width: 100%;
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
}

input[type="text"] {
  width: 100%;
  background: transparent;
  border: 1px solid var(--text);
  border-radius: 2px;
  color: var(--text);
  font-family: sans-serif;
  font-size: 0.95rem;
  padding: 0.65rem 0.85rem;
  outline: none;
  transition: border-color 0.2s;
  letter-spacing: 0.05em;
}

input[type="text"]::placeholder { color: var(--text-dim); }

input[type="text"]:focus {
  border-color: var(--text);
}

input[type="text"].error {
  border-color: var(--red);
}

.error-msg {
  font-size: 0.72rem;
  color: var(--red);
  min-height: 1em;
  letter-spacing: 0.04em;
}

/* ── Play button ──────────────────────────────────────────── */
button#playBtn {
  width: 100%;
  background: transparent;
  border: 1px solid var(--text);
  border-radius: 2px;
  color: var(--text);
  font-family: sans-serif;
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.2em;
  padding: 0.75rem 1rem;
  cursor: pointer;
  text-transform: uppercase;
  transition: background 0.2s, color 0.2s, box-shadow 0.2s;
}

button#playBtn:hover {
  background: var(--text);
  color: var(--bg);
  box-shadow: 0 0 24px #f7f7ff44;
}

button#playBtn:disabled {
  display: none;
}