/* Light theme overrides */
:root {
  --bg-1: #f5f6fa;
  --bg-2: #ffffff;
  --border: #e2e5ee;
  --muted: #64748b;
  --text: #1e293b;
  --accent: #6366f1;
  --accent-2: #f59e0b;
  --accent-subtle: #eef2ff;
}

html, body {
  font-family: var(--font-sans);
  color: var(--text);
  background:
    radial-gradient(ellipse 800px 400px at 15% 0%, rgba(99, 102, 241, 0.04), transparent 70%),
    radial-gradient(ellipse 600px 350px at 85% 0%, rgba(245, 158, 11, 0.03), transparent 70%),
    radial-gradient(
      circle at 1px 1px,
      rgba(2, 6, 23, 0.05) 1px,
      transparent 1.6px
    ) 0 0/12px 12px,
    linear-gradient(180deg, #f8f9fe 0%, var(--bg-1) 50%, #f4f5fa 100%);
}

.card {
  background: var(--bg-2);
  border: 1px solid var(--border);
  border-radius: 10px;
  box-shadow:
    0 1px 2px rgba(16, 24, 40, 0.06),
    0 1px 3px rgba(16, 24, 40, 0.04);
}

.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 9px 12px;
  border-radius: 10px;
  border: 1px solid var(--border);
  background: #fff;
  color: var(--text);
  text-decoration: none;
  transition:
    transform 120ms ease,
    background-color 160ms ease,
    border-color 160ms ease,
    box-shadow 200ms ease;
  box-shadow:
    0 1px 2px rgba(16, 24, 40, 0.06),
    0 1px 3px rgba(16, 24, 40, 0.04);
}
.btn:hover {
  transform: translateY(-1px);
  border-color: #cfd5df;
  background-color: #fafafa;
  box-shadow: 0 6px 14px rgba(16, 24, 40, 0.08);
}
.btn:active {
  transform: translateY(0);
  box-shadow: inset 0 2px 6px rgba(16, 24, 40, 0.10);
}

.btn.primary {
  background: var(--accent);
  color: #ffffff;
  border-color: var(--accent);
  font-weight: 600;
}
.btn.primary:hover {
  background: #4f46e5;
  border-color: #4f46e5;
  color: #ffffff;
}

/* Ghost: quiet, minimal, harmonizes with card borders */
.btn.ghost {
  background: #fff;
  color: var(--text);
  border-color: var(--border);
}
.btn.ghost:hover {
  background: #fafafa;
  border-color: #cfd5df;
  box-shadow: 0 6px 14px rgba(16, 24, 40, 0.06);
}

/* fine-tune focus and interaction states for accessibility */

.btn:focus,
.btn:focus-visible {
  outline: 2px solid rgba(99, 102, 241, 0.4);
  outline-offset: 2px;
}
.btn.primary:focus,
.btn.primary:focus-visible {
  box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.25);
}

/* Primary active/pressed state */
.btn.primary:active {
  background: #4338ca;
  border-color: #4338ca;
}

/* Generic button focus ring while keeping black border */
/* Disabled states */
.btn:disabled,
.btn[disabled],
.btn[aria-disabled="true"] {
  opacity: 0.6;
  cursor: not-allowed;
  transform: none;
  box-shadow: none;
}
.btn.primary:disabled,
.btn.primary[disabled],
.btn.primary[aria-disabled="true"] {
  background: #a5b4fc;
  border-color: #a5b4fc;
  color: #ffffff;
}

/* Ensure any plain <button> text is dark */
button {
  color: var(--text);
}

.header .meta {
  color: var(--muted);
}
.header .avatar {
  border: 1px solid var(--border);
}

.message {
  background: #fff;
}
.message.user {
  background: #fff7ed;
  border: 1px solid #fdba74;
}
.message.assistant {
  background: #f5f3ff;
  border: 1px solid #c4b5fd;
}

.composer {
  border-top: 1px solid var(--border);
  background: #fff;
}
.composer textarea {
  background: #fff;
  color: var(--text);
  border: 1px solid var(--border);
}

.hero p {
  color: var(--muted);
}

/* Light theme username row */
.username-row {
  background: var(--bg-2);
  border: 1px solid var(--border);
  box-shadow: 0 12px 28px rgba(15, 23, 42, 0.08);
}

.username-avatar {
  border-color: var(--border);
  background: #fff;
}

.username-avatar.placeholder {
  background: #f8fafc;
}

.username-chip {
  border-color: var(--border);
  background: #fff;
}

.username-chip.filled {
  background: #f1f5f9;
}

.username-chip.empty {
  background: #fff;
  border-style: dashed;
}

.username-chip.active {
  border-color: var(--accent);
  box-shadow: none;
}

.username-handle {
  color: var(--text);
}

.reload-btn {
  color: #667085;
}

.reload-btn:hover:not(:disabled) {
  background: #eceff3;
  color: var(--text);
}

.reload-btn:disabled {
  color: #98a2b3;
  background: transparent;
}

.username-slot .btn.icon,
.reload-btn {
  border-color: var(--border);
}

.username-slot .btn.icon:hover,
.reload-btn:hover:not(:disabled) {
  border-color: #d0d5dd;
}

.username-input {
  background: #fff;
  border-color: var(--border);
  color: var(--text);
}

.username-input:focus {
  background: #fffbeb;
  border-color: #d6d3d1;
}

.chat-panel {
  background: transparent;
}

/* Send button tweaks: smaller, centered */
.composer .send-btn {
  min-width: auto;
  padding: 7px 10px;
  justify-self: center;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
}

/* Input focus rings */
input:focus,
textarea:focus,
select:focus {
  outline: 2px solid rgba(99, 102, 241, 0.4);
  outline-offset: 2px;
}

/* Active character card */
.character-summary.is-active {
  border-color: var(--accent);
  background: var(--accent-subtle);
  box-shadow: 0 2px 12px rgba(99, 102, 241, 0.12);
}

/* Game card hover */
.game-card:hover {
  border-color: rgba(99, 102, 241, 0.3);
  box-shadow: 0 4px 16px rgba(99, 102, 241, 0.08);
}

/* Landing CTA button */
.landing-cta-btn {
  background: var(--accent);
  color: #ffffff;
  border-color: var(--accent);
}
.landing-cta-btn:hover {
  background: #4f46e5;
  border-color: #4f46e5;
}

/* Milestone counter */
.inline-meta {
  color: var(--accent);
  font-weight: 600;
}

/* Header brand hover */
.header-brand:hover {
  opacity: 0.8;
}

/* Scrollbar styling */
.messages::-webkit-scrollbar,
.character-grid::-webkit-scrollbar {
  width: 6px;
}
.messages::-webkit-scrollbar-thumb,
.character-grid::-webkit-scrollbar-thumb {
  background: #d0d5dd;
  border-radius: 3px;
}
.messages::-webkit-scrollbar-thumb:hover,
.character-grid::-webkit-scrollbar-thumb:hover {
  background: #98a2b3;
}