/* ==================================================================
 * Room Chat - reusable private room chat component
 * Dark neon brand tokens (adapted from the arcade theme), desktop
 * sidebar layout, mobile bottom-sheet drawer + floating button.
 * ================================================================== */

:root {
  --color-primary: #6c5ce7;
  --color-primary-hover: #5b4bd8;
  --color-surface: #101a30;
  --color-surface-muted: rgba(8, 13, 26, 0.72);
  --color-text: #e8f2ff;
  --color-text-muted: #90a6c3;
  --color-success: #33d17a;
  --color-danger: #ff4d6d;
  --color-border: #1f2d4d;
  --radius-sm: 8px;
  --radius-md: 14px;
  --radius-lg: 18px;
  --shadow-card: 0 16px 32px rgba(0, 0, 0, 0.35);
  --chat-accent: var(--accent, #39ff14);
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0 0 0 0);
  white-space: nowrap;
  border: 0;
}

/* ------------------------------------------------------------------
 * Wrapper (mount container fills its grid area).
 * ------------------------------------------------------------------ */

.room-chat-wrap {
  position: relative;
  display: flex;
  flex-direction: column;
  min-width: 0;
  min-height: 0;
}

/* ------------------------------------------------------------------
 * Panel
 * ------------------------------------------------------------------ */

.room-chat {
  display: flex;
  flex-direction: column;
  height: 100%;
  min-height: 420px;
  max-height: 70vh;
  border: 1px solid color-mix(in srgb, var(--chat-accent) 45%, var(--color-border) 55%);
  border-radius: var(--radius-lg);
  background: linear-gradient(150deg, rgba(10, 16, 32, 0.96), rgba(16, 24, 44, 0.94));
  box-shadow: var(--shadow-card), 0 0 24px color-mix(in srgb, var(--chat-accent) 16%, transparent);
  overflow: hidden;
  transition: transform 0.24s ease, box-shadow 0.24s ease;
}

.room-chat-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.6rem;
  padding: 0.7rem 0.85rem;
  border-bottom: 1px solid color-mix(in srgb, var(--chat-accent) 30%, var(--color-border) 70%);
  background: rgba(6, 10, 20, 0.55);
}

.room-chat-title {
  display: flex;
  flex-direction: column;
  gap: 0.15rem;
  min-width: 0;
}

.room-chat-title h3 {
  margin: 0;
  font-family: "Orbitron", sans-serif;
  font-size: 0.9rem;
  letter-spacing: 0.06em;
  color: var(--color-text);
}

.room-chat-online {
  color: var(--color-success);
  font-size: 0.78rem;
}

.room-chat-header-actions {
  display: flex;
  align-items: center;
  gap: 0.45rem;
}

.room-chat-conn {
  font-size: 0.74rem;
  color: var(--color-text-muted);
  border: 1px solid var(--color-border);
  border-radius: 999px;
  padding: 0.16rem 0.5rem;
  white-space: nowrap;
}

.room-chat-conn.online {
  color: var(--color-success);
  border-color: color-mix(in srgb, var(--color-success) 55%, var(--color-border) 45%);
}

.room-chat-conn.offline {
  color: var(--color-danger);
  border-color: color-mix(in srgb, var(--color-danger) 55%, var(--color-border) 45%);
}

.room-chat-collapse,
.room-chat-close {
  position: relative;
  display: inline-grid;
  place-items: center;
  width: 30px;
  height: 30px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  background: var(--color-surface-muted);
  color: var(--color-text-muted);
  cursor: pointer;
  font-size: 1rem;
  line-height: 1;
  transition: border-color 0.18s ease, color 0.18s ease, transform 0.18s ease;
}

.room-chat-collapse:hover,
.room-chat-close:hover {
  border-color: color-mix(in srgb, var(--chat-accent) 60%, var(--color-border) 40%);
  color: var(--color-text);
  transform: translateY(-1px);
}

.room-chat-collapse:focus-visible,
.room-chat-close:focus-visible,
.room-chat-send:focus-visible,
.room-chat-fab:focus-visible,
.room-chat-new:focus-visible {
  outline: 2px solid color-mix(in srgb, var(--chat-accent) 75%, #ffffff 25%);
  outline-offset: 2px;
}

.room-chat-chevron::before {
  content: "";
  display: block;
  width: 8px;
  height: 8px;
  border-right: 2px solid currentColor;
  border-bottom: 2px solid currentColor;
  transform: rotate(45deg);
  transition: transform 0.2s ease;
}

.room-chat-close {
  display: none;
}

.room-chat-collapse-badge {
  position: absolute;
  top: -7px;
  right: -7px;
  min-width: 17px;
  height: 17px;
  padding: 0 4px;
  border-radius: 999px;
  background: var(--color-danger);
  color: #fff;
  font-size: 0.68rem;
  font-weight: 700;
  line-height: 17px;
  text-align: center;
}

/* ------------------------------------------------------------------
 * Messages
 * ------------------------------------------------------------------ */

.room-chat-messages {
  flex: 1 1 auto;
  min-height: 0;
  overflow-y: auto;
  padding: 0.7rem 0.75rem;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  scroll-behavior: smooth;
}

.room-chat-msg {
  max-width: 88%;
  display: flex;
  flex-direction: column;
  gap: 0.12rem;
}

.room-chat-msg.mine {
  align-self: flex-end;
  align-items: flex-end;
}

.room-chat-msg.theirs {
  align-self: flex-start;
  align-items: flex-start;
}

.room-chat-msg.system {
  align-self: center;
  max-width: 100%;
}

.room-chat-msg-meta {
  display: flex;
  gap: 0.45rem;
  align-items: baseline;
  font-size: 0.72rem;
  color: var(--color-text-muted);
}

.room-chat-msg-name {
  font-weight: 700;
  color: color-mix(in srgb, var(--chat-accent) 80%, #ffffff 20%);
}

.room-chat-msg.mine .room-chat-msg-name {
  color: var(--color-text);
}

.room-chat-msg-text {
  margin: 0;
  padding: 0.5rem 0.68rem;
  border-radius: var(--radius-md);
  background: var(--color-surface-muted);
  border: 1px solid var(--color-border);
  color: var(--color-text);
  font-size: 0.95rem;
  line-height: 1.35;
  word-break: break-word;
  overflow-wrap: anywhere;
}

.room-chat-msg.mine .room-chat-msg-text {
  background: color-mix(in srgb, var(--chat-accent) 22%, rgba(8, 13, 26, 0.9));
  border-color: color-mix(in srgb, var(--chat-accent) 55%, var(--color-border) 45%);
}

.room-chat-msg.system {
  border: 1px dashed var(--color-border);
  border-radius: 999px;
  padding: 0.3rem 0.85rem;
  background: rgba(8, 13, 26, 0.55);
}

.room-chat-msg.system .room-chat-msg-text {
  border: none;
  background: transparent;
  padding: 0;
  color: var(--color-text-muted);
  font-size: 0.82rem;
  text-align: center;
}

/* Consecutive messages from the same sender: collapse the meta line. */
.room-chat-msg.grouped {
  margin-top: -0.32rem;
}

.room-chat-msg.grouped .room-chat-msg-meta {
  display: none;
}

.room-chat-new {
  position: sticky;
  bottom: 0.6rem;
  align-self: center;
  margin-top: -0.4rem;
  border: 1px solid color-mix(in srgb, var(--chat-accent) 60%, var(--color-border) 40%);
  border-radius: 999px;
  background: rgba(8, 13, 26, 0.95);
  color: var(--chat-accent, #39ff14);
  font-family: "Orbitron", sans-serif;
  font-size: 0.72rem;
  padding: 0.32rem 0.7rem;
  cursor: pointer;
  box-shadow: 0 6px 16px rgba(0, 0, 0, 0.35);
}

.room-chat-new:hover {
  filter: brightness(1.15);
}

.room-chat-typing {
  min-height: 1.05rem;
  margin: 0;
  padding: 0.1rem 0.85rem;
  color: var(--color-text-muted);
  font-size: 0.78rem;
  font-style: italic;
}

.room-chat-error {
  min-height: 0;
  margin: 0;
  padding: 0.1rem 0.85rem;
  color: var(--color-danger);
  font-size: 0.8rem;
}

/* ------------------------------------------------------------------
 * Input row
 * ------------------------------------------------------------------ */

.room-chat-form {
  display: flex;
  gap: 0.5rem;
  padding: 0.65rem 0.75rem 0.75rem;
  border-top: 1px solid var(--color-border);
  background: rgba(6, 10, 20, 0.55);
}

.room-chat-input-wrap {
  position: relative;
  flex: 1 1 auto;
  min-width: 0;
}

.room-chat-input {
  width: 100%;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 0.6rem 3.2rem 0.6rem 0.7rem;
  background: rgba(8, 13, 26, 0.92);
  color: var(--color-text);
  font-family: inherit;
  font-size: 0.95rem;
  outline: none;
  transition: border-color 0.18s ease, box-shadow 0.18s ease;
}

.room-chat-input:focus {
  border-color: color-mix(in srgb, var(--chat-accent) 65%, var(--color-border) 35%);
  box-shadow: 0 0 0 3px color-mix(in srgb, var(--chat-accent) 26%, transparent);
}

.room-chat-input:disabled {
  opacity: 0.55;
  cursor: not-allowed;
}

.room-chat-counter {
  position: absolute;
  right: 0.6rem;
  top: 50%;
  transform: translateY(-50%);
  color: var(--color-text-muted);
  font-size: 0.72rem;
  pointer-events: none;
}

.room-chat-send {
  align-self: stretch;
  border: 1px solid color-mix(in srgb, var(--chat-accent) 70%, #ffffff 30%);
  border-radius: var(--radius-md);
  background: linear-gradient(120deg, var(--chat-accent), color-mix(in srgb, var(--chat-accent) 55%, #ffffff 45%));
  color: #06070f;
  font-family: "Orbitron", sans-serif;
  font-size: 0.76rem;
  letter-spacing: 0.05em;
  padding: 0 0.9rem;
  cursor: pointer;
  transition: transform 0.16s ease, box-shadow 0.2s ease, filter 0.2s ease;
}

.room-chat-send:hover:not(:disabled) {
  transform: translateY(-1px);
  filter: brightness(1.08);
}

.room-chat-send:disabled {
  opacity: 0.5;
  cursor: not-allowed;
  transform: none;
}

/* ------------------------------------------------------------------
 * Floating button (mobile / collapsed desktop)
 * ------------------------------------------------------------------ */

.room-chat-fab {
  display: none;
  position: fixed;
  right: 1rem;
  bottom: 1rem;
  z-index: 45;
  align-items: center;
  gap: 0.45rem;
  border: 1px solid color-mix(in srgb, var(--chat-accent) 70%, #ffffff 30%);
  border-radius: 999px;
  background: linear-gradient(120deg, color-mix(in srgb, var(--chat-accent) 85%, #0a0f1f 15%), var(--chat-accent));
  color: #06070f;
  font-family: "Orbitron", sans-serif;
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  padding: 0.62rem 1rem;
  cursor: pointer;
  box-shadow: 0 10px 24px rgba(0, 0, 0, 0.45), 0 0 20px color-mix(in srgb, var(--chat-accent) 40%, transparent);
  transition: transform 0.18s ease, box-shadow 0.2s ease;
}

.room-chat-fab:hover {
  transform: translateY(-2px);
}

.room-chat-fab-icon {
  font-size: 1.1rem;
}

.room-chat-fab-badge {
  position: absolute;
  top: -6px;
  right: -6px;
  min-width: 20px;
  height: 20px;
  padding: 0 5px;
  border-radius: 999px;
  background: var(--color-danger);
  border: 2px solid #06080f;
  color: #fff;
  font-size: 0.7rem;
  font-weight: 700;
  line-height: 16px;
  text-align: center;
}

/* Desktop: collapsed panel shows only the header, FAB takes over. */
.room-chat-wrap.collapsed .room-chat-messages,
.room-chat-wrap.collapsed .room-chat-typing,
.room-chat-wrap.collapsed .room-chat-error,
.room-chat-wrap.collapsed .room-chat-form {
  display: none;
}

.room-chat-wrap.collapsed .room-chat {
  min-height: 0;
  max-height: none;
  height: auto;
}

.room-chat-wrap.collapsed .room-chat-chevron::before {
  transform: rotate(-135deg);
}

.room-chat-wrap.collapsed .room-chat-fab {
  display: inline-flex;
}

/* ------------------------------------------------------------------
 * Mobile: bottom-sheet drawer + floating button, game stays the focus.
 * ------------------------------------------------------------------ */

@media (max-width: 900px) {
  .room-chat-wrap {
    position: static;
  }

  .room-chat {
    position: fixed;
    left: 0.6rem;
    right: 0.6rem;
    bottom: 0.6rem;
    z-index: 60;
    max-height: min(78vh, 640px);
    min-height: 320px;
    box-shadow: 0 24px 48px rgba(0, 0, 0, 0.6), 0 0 26px color-mix(in srgb, var(--chat-accent) 20%, transparent);
    transform: translateY(calc(100% + 1rem));
    opacity: 0;
    pointer-events: none;
  }

  .room-chat-wrap.open .room-chat {
    transform: translateY(0);
    opacity: 1;
    pointer-events: auto;
  }

  .room-chat-close {
    display: inline-grid;
  }

  .room-chat-collapse {
    display: none;
  }

  .room-chat-fab {
    display: inline-flex;
  }

  /* Drawer covers the drawer, never the game. */
  .room-chat-wrap.open .room-chat-fab {
    display: none;
  }

  /* Keep the input reachable above the on-screen keyboard. */
  .room-chat-form {
    padding-bottom: max(0.75rem, env(safe-area-inset-bottom));
  }
}

/* ------------------------------------------------------------------
 * Reduced motion + zoom friendliness
 * ------------------------------------------------------------------ */

@media (prefers-reduced-motion: reduce) {
  .room-chat,
  .room-chat-fab,
  .room-chat-chevron::before,
  .room-chat-new,
  .room-chat-send {
    transition: none;
  }

  .room-chat-messages {
    scroll-behavior: auto;
  }
}

@media (max-width: 420px) {
  .room-chat-msg {
    max-width: 96%;
  }
}