/* ═══════════════════════════════════════════════════════════════
   MURATTI SESSIONS — Studio CSS
   v1 — Full Rebuild: Glassmorphism Dark, Animations, Design System
═══════════════════════════════════════════════════════════════ */

/* ── Design Tokens ─────────────────────────────────────────── */
:root {
  /* Colors */
  --ms-bg:             #0a0a0f;
  --ms-surface:        #13141a;
  --ms-surface-2:      #1c1d26;
  --ms-surface-3:      #252631;
  --ms-border:         rgba(255,255,255,0.07);
  --ms-border-strong:  rgba(255,255,255,0.12);
  --ms-text:           #f1f2f6;
  --ms-text-2:         #9899a6;
  --ms-text-3:         #5c5d6e;

  /* Accent */
  --ms-accent:         #6366f1;
  --ms-accent-2:       #8b5cf6;
  --ms-accent-glow:    rgba(99,102,241,0.35);
  --ms-accent-subtle:  rgba(99,102,241,0.12);

  /* Status */
  --ms-success:        #10b981;
  --ms-success-bg:     rgba(16,185,129,0.12);
  --ms-danger:         #ef4444;
  --ms-danger-bg:      rgba(239,68,68,0.12);
  --ms-warning:        #f59e0b;
  --ms-warning-bg:     rgba(245,158,11,0.12);

  /* Glass */
  --ms-glass-bg:       rgba(19,20,26,0.7);
  --ms-glass-border:   rgba(255,255,255,0.08);
  --ms-glass-blur:     blur(20px) saturate(180%);
  -webkit-backdrop-filter: var(--ms-glass-blur);

  /* Shadows */
  --ms-shadow-sm:      0 1px 3px rgba(0,0,0,0.4), 0 1px 2px rgba(0,0,0,0.3);
  --ms-shadow-md:      0 4px 16px rgba(0,0,0,0.5), 0 2px 4px rgba(0,0,0,0.4);
  --ms-shadow-lg:      0 20px 40px rgba(0,0,0,0.6), 0 8px 16px rgba(0,0,0,0.4);
  --ms-shadow-glow:    0 0 40px var(--ms-accent-glow);

  /* Radii */
  --ms-r-sm:    6px;
  --ms-r-md:    10px;
  --ms-r-lg:    16px;
  --ms-r-xl:    24px;
  --ms-r-full:  9999px;

  /* Motion */
  --ms-ease-out:   cubic-bezier(0.16, 1, 0.3, 1);
  --ms-ease-in:    cubic-bezier(0.5, 0, 0.84, 0);
  --ms-spring:     cubic-bezier(0.34, 1.56, 0.64, 1);
  --ms-dur-fast:   120ms;
  --ms-dur-norm:   220ms;
  --ms-dur-slow:   360ms;

  /* Sidebar */
  --ms-panel-w:   340px;
}

/* ── Reset & Base ───────────────────────────────────────────── */
.ms-body {
  margin: 0;
  padding: 0;
  background: var(--ms-bg);
  color: var(--ms-text);
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, system-ui, sans-serif;
  font-size: 14px;
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
  min-height: 100vh;
  min-height: 100dvh;
  overflow: hidden;
}

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

/* ── Shell ──────────────────────────────────────────────────── */
.ms-shell {
  position: fixed;
  inset: 0;
  overflow: hidden;
}

/* ── Screens ────────────────────────────────────────────────── */
.ms-screen {
  position: absolute;
  inset: 0;
  display: flex;
  flex-direction: column;
  overflow: hidden;
  opacity: 1;
  transform: none;
  transition:
    opacity var(--ms-dur-slow) var(--ms-ease-out),
    transform var(--ms-dur-slow) var(--ms-ease-out);
  visibility: visible;
}

/* Hidden screens: keep in DOM for transitions, just invisible */
.ms-screen.ms-screen--hidden {
  pointer-events: none;
  opacity: 0;
  transform: translateY(16px) scale(0.98);
  visibility: hidden;
}

/* JS controls visibility — override default hidden attr */
.ms-screen[hidden] {
  display: flex !important;
}
.ms-screen.ms-screen--hidden {
  pointer-events: none !important;
}

/* ── Brand ──────────────────────────────────────────────────── */
.ms-brand {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  text-decoration: none;
  color: var(--ms-text);
}
.ms-brand-logo { color: var(--ms-accent); }
.ms-brand-name {
  font-size: 15px;
  font-weight: 700;
  letter-spacing: -0.4px;
}
.ms-brand-dot { color: var(--ms-accent); }
.ms-brand--sm .ms-brand-name { font-size: 13px; }

/* ═══════════════════════════════════════════════
   LOBBY SCREEN
═══════════════════════════════════════════════ */

/* Ambient background */
.ms-lobby-bg {
  position: absolute;
  inset: 0;
  overflow: hidden;
  pointer-events: none;
  z-index: 0;
}

.ms-lobby-grid {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(99,102,241,0.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(99,102,241,0.04) 1px, transparent 1px);
  background-size: 48px 48px;
  mask-image: radial-gradient(ellipse 80% 80% at 50% 50%, black 30%, transparent 100%);
}

.ms-lobby-orb {
  position: absolute;
  border-radius: 50%;
  filter: blur(80px);
  pointer-events: none;
  animation: ms-orb-float 8s ease-in-out infinite;
}
.ms-lobby-orb--1 {
  width: 600px; height: 600px;
  background: radial-gradient(circle, rgba(99,102,241,0.25) 0%, transparent 70%);
  top: -200px; left: -100px;
  animation-delay: 0s;
}
.ms-lobby-orb--2 {
  width: 500px; height: 500px;
  background: radial-gradient(circle, rgba(139,92,246,0.2) 0%, transparent 70%);
  bottom: -150px; right: -100px;
  animation-delay: -3s;
}
.ms-lobby-orb--3 {
  width: 300px; height: 300px;
  background: radial-gradient(circle, rgba(16,185,129,0.12) 0%, transparent 70%);
  top: 50%; left: 60%;
  animation-delay: -6s;
}

@keyframes ms-orb-float {
  0%, 100% { transform: translate(0, 0) scale(1); }
  33%       { transform: translate(20px, -30px) scale(1.05); }
  66%       { transform: translate(-15px, 15px) scale(0.95); }
}

/* Lobby layout */
.ms-lobby {
  justify-content: flex-start;
  background: var(--ms-bg);
}

.ms-lobby-header {
  position: relative;
  z-index: 10;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 20px 32px;
}

.ms-lobby-header-auth { display: flex; align-items: center; gap: 12px; }

.ms-lobby-main {
  position: relative;
  z-index: 10;
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 0 24px 60px;
  gap: 48px;
}

/* Hero text */
.ms-lobby-hero { text-align: center; max-width: 540px; }

.ms-lobby-eyebrow {
  display: flex;
  justify-content: center;
  margin-bottom: 20px;
}

.ms-lobby-badge {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  padding: 5px 12px;
  border-radius: var(--ms-r-full);
  background: var(--ms-accent-subtle);
  border: 1px solid rgba(99,102,241,0.25);
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: rgba(180,181,255,0.9);
  animation: ms-fade-up 0.6s var(--ms-ease-out) both;
}

.ms-lobby-badge-dot {
  width: 6px; height: 6px;
  border-radius: 50%;
  background: var(--ms-success);
  box-shadow: 0 0 8px var(--ms-success);
  animation: ms-pulse 2s ease-in-out infinite;
}

.ms-lobby-title {
  margin: 0 0 12px;
  font-size: clamp(36px, 5vw, 56px);
  font-weight: 800;
  letter-spacing: -1.5px;
  line-height: 1.1;
  color: var(--ms-text);
  animation: ms-fade-up 0.6s var(--ms-ease-out) 0.1s both;
}

.ms-lobby-name {
  background: linear-gradient(135deg, #a5b4fc, #818cf8, #c4b5fd);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.ms-lobby-subtitle {
  margin: 0;
  font-size: 16px;
  color: var(--ms-text-2);
  line-height: 1.6;
  max-width: 420px;
  margin: 0 auto;
  animation: ms-fade-up 0.6s var(--ms-ease-out) 0.2s both;
}

/* Action cards */
.ms-action-cards {
  display: flex;
  gap: 16px;
  animation: ms-fade-up 0.6s var(--ms-ease-out) 0.3s both;
  width: 100%;
  max-width: 560px;
}

.ms-action-card {
  position: relative;
  flex: 1;
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 20px 20px 20px 20px;
  background: var(--ms-surface);
  border: 1px solid var(--ms-border);
  border-radius: var(--ms-r-lg);
  cursor: pointer;
  text-align: left;
  overflow: hidden;
  transition:
    border-color var(--ms-dur-norm) var(--ms-ease-out),
    transform var(--ms-dur-norm) var(--ms-spring),
    box-shadow var(--ms-dur-norm) var(--ms-ease-out);
  color: var(--ms-text);
}

.ms-action-card:hover {
  border-color: var(--ms-border-strong);
  transform: translateY(-3px);
  box-shadow: var(--ms-shadow-md);
}

.ms-action-card:active {
  transform: translateY(-1px) scale(0.99);
}

.ms-action-card-glow {
  position: absolute;
  inset: 0;
  opacity: 0;
  transition: opacity var(--ms-dur-slow) var(--ms-ease-out);
  pointer-events: none;
}
.ms-action-card-glow--host {
  background: radial-gradient(ellipse 80% 60% at 20% 50%, rgba(99,102,241,0.15), transparent);
}
.ms-action-card-glow--join {
  background: radial-gradient(ellipse 80% 60% at 20% 50%, rgba(139,92,246,0.15), transparent);
}
.ms-action-card:hover .ms-action-card-glow { opacity: 1; }

.ms-action-card-icon {
  flex-shrink: 0;
  width: 44px; height: 44px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--ms-r-md);
  background: var(--ms-surface-2);
  border: 1px solid var(--ms-border);
  transition: background var(--ms-dur-norm), border-color var(--ms-dur-norm);
}
.ms-action-card-icon--host { color: #a5b4fc; }
.ms-action-card-icon--join { color: #c4b5fd; }
.ms-action-card:hover .ms-action-card-icon {
  background: var(--ms-accent-subtle);
  border-color: rgba(99,102,241,0.3);
}

.ms-action-card-body { flex: 1; min-width: 0; }
.ms-action-card-title {
  margin: 0 0 3px;
  font-size: 14px;
  font-weight: 600;
  color: var(--ms-text);
}
.ms-action-card-desc {
  margin: 0;
  font-size: 12px;
  color: var(--ms-text-2);
}

.ms-action-card-arrow {
  flex-shrink: 0;
  color: var(--ms-text-3);
  transition: color var(--ms-dur-norm), transform var(--ms-dur-norm) var(--ms-spring);
}
.ms-action-card:hover .ms-action-card-arrow {
  color: var(--ms-accent);
  transform: translateX(4px);
}

/* Feature tags */
.ms-feature-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  justify-content: center;
  animation: ms-fade-up 0.6s var(--ms-ease-out) 0.4s both;
}

.ms-tag {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  padding: 4px 10px;
  border-radius: var(--ms-r-full);
  background: var(--ms-surface);
  border: 1px solid var(--ms-border);
  font-size: 11px;
  color: var(--ms-text-2);
  letter-spacing: 0.01em;
}

/* ═══════════════════════════════════════════════
   PREFLIGHT SCREEN
═══════════════════════════════════════════════ */

.ms-preflight {
  background: var(--ms-bg);
  overflow-y: auto;
}

.ms-preflight-bg {
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 0;
}

.ms-preflight-topbar {
  position: relative;
  z-index: 10;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px 24px;
  border-bottom: 1px solid var(--ms-border);
  background: rgba(10,10,15,0.8);
  -webkit-backdrop-filter: blur(12px);
  backdrop-filter: blur(12px);
  flex-shrink: 0;
}

.ms-preflight-layout {
  position: relative;
  z-index: 10;
  flex: 1;
  display: grid;
  grid-template-columns: 1fr 420px;
  gap: 0;
  min-height: 0;
  overflow: hidden;
}

@media (max-width: 900px) {
  .ms-preflight-layout { grid-template-columns: 1fr; }
}

/* Camera pane */
.ms-preflight-cam-pane {
  padding: 32px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--ms-surface);
  border-right: 1px solid var(--ms-border);
}

.ms-cam-frame {
  position: relative;
  width: 100%;
  max-width: 500px;
  /* aspect-ratio fallback for Safari < 15 */
  padding-top: 56.25%; /* 9/16 = 56.25% */
  height: 0;
  aspect-ratio: 16/9;
  border-radius: var(--ms-r-xl);
  overflow: hidden;
  background: var(--ms-surface-2);
  border: 1px solid var(--ms-border);
  box-shadow: var(--ms-shadow-lg);
}

/* When aspect-ratio IS natively supported, reset the padding hack */
@supports (aspect-ratio: 1) {
  .ms-cam-frame {
    padding-top: 0;
    height: auto;
  }
}

.ms-cam-video {
  position: absolute;
  inset: 0;
  width: 100%; height: 100%;
  object-fit: cover;
  transform: scaleX(-1);
  display: block;
}

.ms-cam-empty {
  position: absolute;
  inset: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 12px;
  color: var(--ms-text-3);
}
.ms-cam-empty p { font-size: 13px; text-align: center; margin: 0; }

/* Mic bars indicator */
.ms-cam-mic-indicator {
  position: absolute;
  bottom: 56px;
  left: 50%;
  transform: translateX(-50%);
  background: rgba(0,0,0,0.6);
  -webkit-backdrop-filter: blur(8px);
  backdrop-filter: blur(8px);
  border-radius: var(--ms-r-full);
  padding: 6px 12px;
  opacity: 0;
  transition: opacity var(--ms-dur-norm);
}
.ms-cam-mic-indicator.is-active { opacity: 1; }

.ms-cam-mic-bars {
  display: flex;
  align-items: center;
  gap: 2px;
  height: 14px;
}
.ms-cam-mic-bars span {
  width: 3px;
  border-radius: 2px;
  background: var(--ms-success);
  height: 4px;
  transition: height 80ms ease;
}

/* Camera controls */
.ms-cam-controls {
  position: absolute;
  bottom: 16px;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  gap: 8px;
  white-space: nowrap;
}

.ms-cam-pill {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 7px 12px;
  border-radius: var(--ms-r-full);
  background: rgba(0,0,0,0.6);
  -webkit-backdrop-filter: blur(12px);
  backdrop-filter: blur(12px);
  border: 1px solid rgba(255,255,255,0.12);
  color: var(--ms-text-2);
  font-size: 12px;
  font-weight: 500;
  cursor: pointer;
  transition:
    background var(--ms-dur-norm),
    border-color var(--ms-dur-norm),
    color var(--ms-dur-norm);
}
.ms-cam-pill.is-active {
  background: rgba(99,102,241,0.25);
  border-color: rgba(99,102,241,0.5);
  color: #a5b4fc;
}
.ms-cam-pill:hover { border-color: rgba(255,255,255,0.25); }

/* Settings panel */
.ms-preflight-settings {
  overflow-y: auto;
  padding: 0;
}

.ms-preflight-settings-inner {
  padding: 32px 28px;
  display: flex;
  flex-direction: column;
  gap: 20px;
  min-height: 100%;
}

.ms-preflight-header { }
.ms-preflight-title {
  margin: 0 0 6px;
  font-size: 22px;
  font-weight: 700;
  letter-spacing: -0.4px;
  color: var(--ms-text);
}
.ms-preflight-desc {
  margin: 0;
  font-size: 13px;
  color: var(--ms-text-2);
}

/* Room card */
.ms-room-card-wrap { }
.ms-room-card {
  padding: 16px;
  background: var(--ms-surface-2);
  border-radius: var(--ms-r-md);
  border: 1px solid var(--ms-border);
}

.ms-room-card-loading {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 13px;
  color: var(--ms-text-2);
}

.ms-room-card-ready { display: flex; flex-direction: column; gap: 10px; }
.ms-room-card-label { font-size: 11px; font-weight: 600; text-transform: uppercase; letter-spacing: 0.06em; color: var(--ms-text-3); }

.ms-room-link-row {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 8px 12px;
  background: var(--ms-surface-3);
  border-radius: var(--ms-r-sm);
  border: 1px solid var(--ms-border);
}
.ms-room-link-text {
  flex: 1;
  font-family: 'JetBrains Mono', monospace;
  font-size: 11px;
  color: var(--ms-text-2);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.ms-copy-btn {
  flex-shrink: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 28px; height: 28px;
  border-radius: var(--ms-r-sm);
  background: transparent;
  border: 1px solid var(--ms-border);
  color: var(--ms-text-2);
  cursor: pointer;
  transition:
    background var(--ms-dur-fast),
    border-color var(--ms-dur-fast),
    color var(--ms-dur-fast);
}
.ms-copy-btn:hover {
  background: var(--ms-accent-subtle);
  border-color: rgba(99,102,241,0.4);
  color: #a5b4fc;
}

.ms-room-code-row {
  display: flex;
  align-items: center;
  gap: 8px;
}
.ms-room-code-label { font-size: 11px; color: var(--ms-text-3); }
.ms-room-code {
  font-family: 'JetBrains Mono', monospace;
  font-size: 13px;
  font-weight: 600;
  color: var(--ms-accent);
  letter-spacing: 0.1em;
}

/* Devices grid */
.ms-devices-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
}
.ms-devices-grid .ms-field-group--full { grid-column: 1 / -1; }

/* Preflight actions */
.ms-preflight-actions { margin-top: 4px; }

/* ═══════════════════════════════════════════════
   SESSION SCREEN
═══════════════════════════════════════════════ */

.ms-session {
  background: var(--ms-bg);
  flex-direction: column;
  overflow: hidden;
}

/* Top bar */
.ms-session-topbar {
  flex-shrink: 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 16px;
  height: 52px;
  background: rgba(10,10,15,0.85);
  -webkit-backdrop-filter: blur(16px);
  backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--ms-border);
  z-index: 20;
}

.ms-session-topbar-left,
.ms-session-topbar-right {
  display: flex;
  align-items: center;
  gap: 12px;
}

.ms-session-info {
  display: flex;
  align-items: center;
  gap: 8px;
}

.ms-session-status-dot {
  width: 7px; height: 7px;
  border-radius: 50%;
  background: var(--ms-success);
  box-shadow: 0 0 8px var(--ms-success);
  animation: ms-pulse 2.5s ease-in-out infinite;
}
.ms-session-status-dot[data-state="connecting"] {
  background: var(--ms-warning);
  box-shadow: 0 0 8px var(--ms-warning);
}
.ms-session-status-dot[data-state="error"] {
  background: var(--ms-danger);
  box-shadow: 0 0 8px var(--ms-danger);
  animation: none;
}

.ms-session-room-id {
  font-family: 'JetBrains Mono', monospace;
  font-size: 12px;
  color: var(--ms-text-2);
  letter-spacing: 0.05em;
}

.ms-session-timer {
  font-family: 'JetBrains Mono', monospace;
  font-size: 12px;
  color: var(--ms-text-3);
  letter-spacing: 0.08em;
  min-width: 40px;
}

/* Presence */
.ms-session-presence {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 4px 10px 4px 6px;
  background: var(--ms-surface);
  border: 1px solid var(--ms-border);
  border-radius: var(--ms-r-full);
}

.ms-presence-avatars {
  display: flex;
  align-items: center;
}
.ms-presence-avatar {
  width: 22px; height: 22px;
  border-radius: 50%;
  background: var(--ms-accent);
  border: 1.5px solid var(--ms-bg);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 9px;
  font-weight: 700;
  color: white;
  margin-left: -6px;
  overflow: hidden;
  flex-shrink: 0;
}
.ms-presence-avatar:first-child { margin-left: 0; }

.ms-presence-count { font-size: 12px; font-weight: 600; color: var(--ms-text-2); }

/* Stage */
.ms-stage {
  flex: 1;
  position: relative;
  overflow: hidden;
  min-height: 0;
}

/* Video grid */
.ms-video-grid {
  position: absolute;
  inset: 12px;
  display: grid;
  gap: 10px;
  transition: all var(--ms-dur-slow) var(--ms-ease-out);
}

.ms-video-grid[data-count="1"] {
  grid-template-columns: 1fr;
  grid-template-rows: 1fr;
}
.ms-video-grid[data-count="2"] {
  grid-template-columns: 1fr 1fr;
  grid-template-rows: 1fr;
}
.ms-video-grid[data-count="3"],
.ms-video-grid[data-count="4"] {
  grid-template-columns: 1fr 1fr;
  grid-template-rows: 1fr 1fr;
}
.ms-video-grid[data-count="5"],
.ms-video-grid[data-count="6"] {
  grid-template-columns: 1fr 1fr 1fr;
  grid-template-rows: 1fr 1fr;
}

/* Video tile */
.ms-tile {
  position: relative;
  border-radius: var(--ms-r-lg);
  overflow: hidden;
  background: var(--ms-surface);
  border: 1px solid var(--ms-border);
  animation: ms-tile-in var(--ms-dur-slow) var(--ms-ease-out) both;
  transition: border-color var(--ms-dur-norm);
}

.ms-tile.is-speaking {
  border-color: var(--ms-success);
  box-shadow: 0 0 0 2px rgba(16,185,129,0.3);
}

.ms-tile.is-local .ms-tile-video { transform: scaleX(-1); }

.ms-tile-video {
  width: 100%; height: 100%;
  object-fit: cover;
  display: block;
  background: var(--ms-surface-2);
}

.ms-tile-placeholder {
  position: absolute;
  inset: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 10px;
  background: var(--ms-surface-2);
}

.ms-tile-avatar {
  width: 56px; height: 56px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--ms-accent), var(--ms-accent-2));
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 22px;
  font-weight: 700;
  color: white;
  box-shadow: 0 4px 16px rgba(99,102,241,0.4);
}

.ms-tile-name-badge {
  position: absolute;
  bottom: 12px;
  left: 12px;
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 4px 10px;
  background: rgba(0,0,0,0.7);
  -webkit-backdrop-filter: blur(8px);
  backdrop-filter: blur(8px);
  border-radius: var(--ms-r-full);
  font-size: 12px;
  font-weight: 500;
  color: white;
}

.ms-tile-muted-badge {
  position: absolute;
  top: 10px;
  right: 10px;
  width: 28px; height: 28px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(0,0,0,0.7);
  -webkit-backdrop-filter: blur(8px);
  backdrop-filter: blur(8px);
  border-radius: 50%;
  color: var(--ms-danger);
}

/* Screen overlay */
.ms-screen-overlay {
  position: absolute;
  inset: 0;
  background: var(--ms-bg);
  display: flex;
  flex-direction: column;
  z-index: 15;
  animation: ms-fade-in var(--ms-dur-norm) var(--ms-ease-out);
}

.ms-screen-overlay[hidden] {
  display: none;
}

.ms-screen-overlay-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 10px 16px;
  background: rgba(10,10,15,0.9);
  -webkit-backdrop-filter: blur(12px);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--ms-border);
  flex-shrink: 0;
}

.ms-screen-overlay-info { display: flex; align-items: center; gap: 10px; }

.ms-screen-badge {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  padding: 3px 9px;
  background: var(--ms-danger-bg);
  border: 1px solid rgba(239,68,68,0.3);
  border-radius: var(--ms-r-full);
  font-size: 11px;
  font-weight: 600;
  color: var(--ms-danger);
}

.ms-screen-sharer { font-size: 13px; color: var(--ms-text-2); }
.ms-screen-overlay-actions { display: flex; align-items: center; gap: 8px; }

.ms-control-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 4px 10px;
  background: var(--ms-success-bg);
  border: 1px solid rgba(16,185,129,0.3);
  border-radius: var(--ms-r-full);
  font-size: 11px;
  font-weight: 600;
  color: var(--ms-success);
}

.ms-control-badge-dot {
  width: 5px; height: 5px;
  border-radius: 50%;
  background: var(--ms-success);
  box-shadow: 0 0 6px var(--ms-success);
  animation: ms-pulse 1.5s ease-in-out infinite;
}

.ms-screen-canvas-wrap {
  flex: 1;
  position: relative;
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
}

.ms-screen-video {
  max-width: 100%; max-height: 100%;
  object-fit: contain;
  display: block;
  user-select: none;
}
.ms-screen-video.rc-active { cursor: none; }

/* Remote cursor */
.ms-rc-cursor {
  position: absolute;
  pointer-events: none;
  z-index: 100;
  transform: translate(-2px, -2px);
  filter: drop-shadow(0 2px 4px rgba(0,0,0,0.5));
  transition: left 40ms linear, top 40ms linear;
}

/* Controls bar */
.ms-controls {
  flex-shrink: 0;
  padding: 12px 16px;
  background: rgba(10,10,15,0.85);
  -webkit-backdrop-filter: blur(16px);
  backdrop-filter: blur(16px);
  border-top: 1px solid var(--ms-border);
  z-index: 20;
}

.ms-controls-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  max-width: 100%;
}

.ms-controls-left,
.ms-controls-right { flex: 1; display: flex; align-items: center; }
.ms-controls-right { justify-content: flex-end; }

.ms-controls-center {
  display: flex;
  align-items: center;
  gap: 4px;
}

/* Control button */
.ms-ctrl-btn {
  position: relative;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 4px;
  padding: 8px 14px;
  border-radius: var(--ms-r-md);
  background: transparent;
  border: 1px solid transparent;
  color: var(--ms-text-2);
  cursor: pointer;
  transition:
    background var(--ms-dur-fast),
    border-color var(--ms-dur-fast),
    color var(--ms-dur-fast),
    transform var(--ms-dur-fast) var(--ms-spring);
  min-width: 60px;
}

.ms-ctrl-btn:hover {
  background: var(--ms-surface-2);
  border-color: var(--ms-border);
  color: var(--ms-text);
}

.ms-ctrl-btn:active { transform: scale(0.95); }

.ms-ctrl-btn[aria-pressed="true"] {
  color: var(--ms-text);
}

.ms-ctrl-btn[aria-pressed="true"] .ms-icon-off { display: none; }
.ms-ctrl-btn[aria-pressed="false"] .ms-icon-on { display: none; }
.ms-ctrl-btn[aria-pressed="false"] {
  color: var(--ms-text-3);
}
.ms-ctrl-btn[aria-pressed="false"]:hover { color: var(--ms-text-2); }

/* Active state for non-boolean controls */
.ms-ctrl-btn.is-active {
  background: var(--ms-accent-subtle);
  border-color: rgba(99,102,241,0.3);
  color: #a5b4fc;
}

.ms-ctrl-btn-icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 36px; height: 36px;
  border-radius: var(--ms-r-sm);
  background: var(--ms-surface);
  border: 1px solid var(--ms-border);
  transition: background var(--ms-dur-fast), border-color var(--ms-dur-fast);
}
.ms-ctrl-btn.is-active .ms-ctrl-btn-icon,
.ms-ctrl-btn[aria-pressed="true"] .ms-ctrl-btn-icon {
  background: var(--ms-surface-2);
}

.ms-ctrl-btn-label { font-size: 10px; font-weight: 500; letter-spacing: 0.02em; }

.ms-ctrl-btn-badge {
  position: absolute;
  top: 3px; right: 6px;
  min-width: 16px; height: 16px;
  padding: 0 4px;
  border-radius: var(--ms-r-full);
  background: var(--ms-danger);
  color: white;
  font-size: 9px;
  font-weight: 700;
  display: flex;
  align-items: center;
  justify-content: center;
  animation: ms-bounce-in var(--ms-dur-norm) var(--ms-spring);
}

/* Quality indicator */
.ms-quality-indicator {
  display: flex;
  align-items: center;
  gap: 7px;
  padding: 4px 10px;
  background: var(--ms-surface);
  border: 1px solid var(--ms-border);
  border-radius: var(--ms-r-full);
}

.ms-quality-bars { display: flex; align-items: flex-end; gap: 2px; height: 14px; }
.ms-quality-bar {
  width: 3px;
  border-radius: 2px;
  background: var(--ms-text-3);
  transition: background var(--ms-dur-norm), height var(--ms-dur-norm);
}
.ms-quality-bars[data-quality="good"] .ms-quality-bar { background: var(--ms-success); }
.ms-quality-bars[data-quality="medium"] .ms-quality-bar { background: var(--ms-warning); }
.ms-quality-bars[data-quality="poor"] .ms-quality-bar { background: var(--ms-danger); }

.ms-quality-bar:nth-child(1) { height: 5px; }
.ms-quality-bar:nth-child(2) { height: 8px; }
.ms-quality-bar:nth-child(3) { height: 12px; }

.ms-quality-label { font-size: 11px; color: var(--ms-text-2); font-weight: 500; }

/* More popup */
.ms-more-popup {
  position: absolute;
  bottom: calc(100% + 8px);
  left: 50%;
  transform: translateX(-50%);
  width: 200px;
  background: var(--ms-surface-2);
  border: 1px solid var(--ms-border-strong);
  border-radius: var(--ms-r-md);
  padding: 6px;
  box-shadow: var(--ms-shadow-lg);
  z-index: 30;
  animation: ms-dropdown-in var(--ms-dur-norm) var(--ms-ease-out) both;
}

.ms-more-popup[hidden] { display: none; }

.ms-more-item {
  display: flex;
  align-items: center;
  gap: 10px;
  width: 100%;
  padding: 8px 10px;
  border-radius: var(--ms-r-sm);
  background: none;
  border: none;
  color: var(--ms-text-2);
  font-size: 13px;
  cursor: pointer;
  text-align: left;
  transition: background var(--ms-dur-fast), color var(--ms-dur-fast);
}
.ms-more-item:hover { background: var(--ms-surface-3); color: var(--ms-text); }
.ms-more-item--danger:hover { background: var(--ms-danger-bg); color: var(--ms-danger); }
.ms-more-separator { height: 1px; background: var(--ms-border); margin: 4px 0; }

/* ═══════════════════════════════════════════════
   SIDE PANELS (Chat + DAW Bridge)
═══════════════════════════════════════════════ */

.ms-side-panel {
  position: absolute;
  top: 0;
  right: 0;
  bottom: 0;
  width: var(--ms-panel-w);
  background: var(--ms-glass-bg);
  -webkit-backdrop-filter: var(--ms-glass-blur);
  -webkit-backdrop-filter: var(--ms-glass-blur);
  backdrop-filter: var(--ms-glass-blur);
  border-left: 1px solid var(--ms-glass-border);
  display: flex;
  flex-direction: column;
  z-index: 25;
  transform: translateX(100%);
  transition: transform var(--ms-dur-slow) var(--ms-ease-out);
  will-change: transform;
}

.ms-side-panel[data-open="true"] {
  transform: translateX(0);
  box-shadow: -20px 0 60px rgba(0,0,0,0.4);
}

.ms-side-panel-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px 20px;
  border-bottom: 1px solid var(--ms-border);
  flex-shrink: 0;
}

.ms-side-panel-title {
  margin: 0;
  font-size: 14px;
  font-weight: 600;
  color: var(--ms-text);
}

.ms-side-panel-close {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 28px; height: 28px;
  border-radius: var(--ms-r-sm);
  background: none;
  border: none;
  color: var(--ms-text-3);
  cursor: pointer;
  transition: background var(--ms-dur-fast), color var(--ms-dur-fast);
}
.ms-side-panel-close:hover { background: var(--ms-surface-2); color: var(--ms-text); }

/* Chat */
.ms-chat-messages {
  flex: 1;
  overflow-y: auto;
  padding: 16px;
  display: flex;
  flex-direction: column;
  gap: 12px;
  scroll-behavior: smooth;
}

.ms-chat-messages::-webkit-scrollbar { width: 4px; }
.ms-chat-messages::-webkit-scrollbar-track { background: transparent; }
.ms-chat-messages::-webkit-scrollbar-thumb { background: var(--ms-surface-3); border-radius: 4px; }

.ms-chat-empty {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 10px;
  color: var(--ms-text-3);
  padding: 32px;
}
.ms-chat-empty p { font-size: 13px; margin: 0; text-align: center; }

/* Chat message bubble */
.ms-chat-msg {
  display: flex;
  flex-direction: column;
  gap: 3px;
  animation: ms-fade-up 0.2s var(--ms-ease-out) both;
}
.ms-chat-msg.is-mine { align-items: flex-end; }

.ms-chat-msg-meta {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 11px;
  color: var(--ms-text-3);
}
.ms-chat-msg.is-mine .ms-chat-msg-meta { flex-direction: row-reverse; }

.ms-chat-msg-name { font-weight: 600; color: var(--ms-text-2); }

.ms-chat-msg-bubble {
  max-width: 240px;
  padding: 8px 12px;
  border-radius: 12px;
  font-size: 13px;
  line-height: 1.5;
  word-break: break-word;
}

.ms-chat-msg.is-mine .ms-chat-msg-bubble {
  background: var(--ms-accent);
  color: white;
  border-bottom-right-radius: 4px;
}
.ms-chat-msg:not(.is-mine) .ms-chat-msg-bubble {
  background: var(--ms-surface-2);
  color: var(--ms-text);
  border-bottom-left-radius: 4px;
  border: 1px solid var(--ms-border);
}

.ms-chat-input-row {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 12px 16px;
  border-top: 1px solid var(--ms-border);
  flex-shrink: 0;
}

.ms-chat-input {
  flex: 1;
  padding: 8px 12px;
  background: var(--ms-surface-2);
  border: 1px solid var(--ms-border);
  border-radius: var(--ms-r-md);
  color: var(--ms-text);
  font-size: 13px;
  outline: none;
  transition: border-color var(--ms-dur-fast), box-shadow var(--ms-dur-fast);
  font-family: inherit;
}
.ms-chat-input:focus {
  border-color: rgba(99,102,241,0.5);
  box-shadow: 0 0 0 3px rgba(99,102,241,0.12);
}
.ms-chat-input::placeholder { color: var(--ms-text-3); }

.ms-chat-send {
  flex-shrink: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 34px; height: 34px;
  border-radius: var(--ms-r-sm);
  background: var(--ms-accent);
  border: none;
  color: white;
  cursor: pointer;
  transition: background var(--ms-dur-fast), transform var(--ms-dur-fast) var(--ms-spring);
}
.ms-chat-send:hover { background: #4f52e8; }
.ms-chat-send:active { transform: scale(0.9); }

/* DAW panel */
.ms-daw-body {
  flex: 1;
  overflow-y: auto;
  padding: 20px 16px;
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.ms-daw-status {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 10px 14px;
  background: var(--ms-surface-2);
  border-radius: var(--ms-r-md);
  border: 1px solid var(--ms-border);
}

.ms-daw-status-dot {
  width: 8px; height: 8px;
  border-radius: 50%;
  background: var(--ms-text-3);
  transition: background var(--ms-dur-norm), box-shadow var(--ms-dur-norm);
}
.ms-daw-status-dot[data-state="active"] {
  background: var(--ms-success);
  box-shadow: 0 0 8px var(--ms-success);
  animation: ms-pulse 2s ease-in-out infinite;
}
.ms-daw-status-dot[data-state="streaming"] {
  background: var(--ms-danger);
  box-shadow: 0 0 8px var(--ms-danger);
  animation: ms-pulse 1s ease-in-out infinite;
}

.ms-daw-status-label { font-size: 13px; font-weight: 500; color: var(--ms-text-2); }

.ms-daw-info {
  font-size: 12px;
  color: var(--ms-text-2);
  line-height: 1.6;
  margin: 0;
  padding: 10px 12px;
  background: var(--ms-surface-2);
  border-radius: var(--ms-r-sm);
  border-left: 3px solid var(--ms-accent);
}

/* VU Meter */
.ms-vu-meter {
  background: var(--ms-surface-2);
  border: 1px solid var(--ms-border);
  border-radius: var(--ms-r-md);
  padding: 14px 14px 8px;
}

.ms-vu-bars {
  display: flex;
  align-items: flex-end;
  gap: 3px;
  height: 48px;
  margin-bottom: 6px;
}

.ms-vu-bar {
  flex: 1;
  height: var(--h, 20%);
  background: linear-gradient(180deg, #ef4444 0%, #f59e0b 40%, #10b981 100%);
  border-radius: 2px;
  transition: height 80ms ease;
  transform-origin: bottom;
}

.ms-vu-labels {
  display: flex;
  justify-content: space-between;
  font-family: 'JetBrains Mono', monospace;
  font-size: 9px;
  color: var(--ms-text-3);
}

/* DAW guide */
.ms-daw-guide {
  border-radius: var(--ms-r-md);
  border: 1px solid var(--ms-border);
  overflow: hidden;
}

.ms-daw-guide-summary {
  padding: 10px 14px;
  font-size: 12px;
  font-weight: 600;
  color: var(--ms-text-2);
  cursor: pointer;
  background: var(--ms-surface-2);
  list-style: none;
  display: flex;
  align-items: center;
  justify-content: space-between;
  user-select: none;
}
.ms-daw-guide-summary::-webkit-details-marker { display: none; }
.ms-daw-guide-summary::after {
  content: '›';
  font-size: 16px;
  transition: transform var(--ms-dur-norm);
}
.ms-daw-guide[open] .ms-daw-guide-summary::after { transform: rotate(90deg); }

.ms-daw-guide-body {
  padding: 14px;
  display: flex;
  flex-direction: column;
  gap: 12px;
  background: var(--ms-surface);
}

.ms-daw-step {
  display: flex;
  gap: 10px;
  align-items: flex-start;
}

.ms-daw-step-num {
  flex-shrink: 0;
  width: 22px; height: 22px;
  border-radius: 50%;
  background: var(--ms-accent-subtle);
  border: 1px solid rgba(99,102,241,0.3);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 11px;
  font-weight: 700;
  color: #a5b4fc;
  margin-top: 1px;
}

.ms-daw-step strong { display: block; font-size: 12px; color: var(--ms-text); margin-bottom: 2px; }
.ms-daw-step p { margin: 0; font-size: 11px; color: var(--ms-text-2); line-height: 1.5; }

/* ═══════════════════════════════════════════════
   DIALOGS (Incoming call, Remote control request)
═══════════════════════════════════════════════ */

.ms-dialog {
  position: absolute;
  inset: 0;
  z-index: 50;
  display: flex;
  align-items: center;
  justify-content: center;
}

.ms-dialog[hidden] { display: none; }

.ms-dialog-backdrop {
  position: absolute;
  inset: 0;
  background: rgba(0,0,0,0.7);
  -webkit-backdrop-filter: blur(4px);
  backdrop-filter: blur(4px);
  animation: ms-fade-in var(--ms-dur-norm) var(--ms-ease-out);
}

.ms-dialog-panel {
  position: relative;
  z-index: 1;
  width: 100%;
  max-width: 360px;
  background: var(--ms-surface-2);
  border: 1px solid var(--ms-border-strong);
  border-radius: var(--ms-r-xl);
  padding: 28px 24px 24px;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 14px;
  box-shadow: var(--ms-shadow-lg);
  text-align: center;
  animation: ms-dialog-in var(--ms-dur-slow) var(--ms-spring) both;
}

.ms-dialog-icon {
  width: 56px; height: 56px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--ms-r-lg);
  background: var(--ms-surface-3);
  border: 1px solid var(--ms-border);
  color: var(--ms-accent);
}

.ms-dialog-title {
  margin: 0;
  font-size: 18px;
  font-weight: 700;
  letter-spacing: -0.3px;
  color: var(--ms-text);
}

.ms-dialog-desc {
  margin: 0;
  font-size: 13px;
  color: var(--ms-text-2);
  line-height: 1.6;
  max-width: 280px;
}

.ms-dialog-actions {
  display: flex;
  gap: 10px;
  width: 100%;
  margin-top: 4px;
}
.ms-dialog-actions .ms-btn { flex: 1; justify-content: center; }

/* Incoming call panel */
.ms-incoming-panel { max-width: 300px; }

.ms-incoming-avatar {
  width: 64px; height: 64px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--ms-accent), var(--ms-accent-2));
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 24px;
  font-weight: 700;
  color: white;
  box-shadow: 0 0 0 8px rgba(99,102,241,0.15), 0 0 0 16px rgba(99,102,241,0.07);
  animation: ms-incoming-pulse 2s ease-in-out infinite;
}

/* Toast */
.ms-toasts {
  position: absolute;
  bottom: 80px;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  z-index: 60;
  pointer-events: none;
}

.ms-toast {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 10px 16px;
  background: var(--ms-surface-2);
  border: 1px solid var(--ms-border-strong);
  border-radius: var(--ms-r-full);
  font-size: 13px;
  color: var(--ms-text);
  box-shadow: var(--ms-shadow-md);
  white-space: nowrap;
  animation: ms-toast-in var(--ms-dur-norm) var(--ms-spring) both;
  pointer-events: auto;
}

.ms-toast--success { border-color: rgba(16,185,129,0.4); }
.ms-toast--error   { border-color: rgba(239,68,68,0.4); }
.ms-toast--info    { border-color: rgba(99,102,241,0.4); }

/* ═══════════════════════════════════════════════
   SHARED FORM COMPONENTS
═══════════════════════════════════════════════ */

.ms-field-group {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.ms-field-group--full { grid-column: 1 / -1; }

.ms-field-label {
  display: flex;
  align-items: center;
  gap: 5px;
  font-size: 11px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--ms-text-3);
}

.ms-field-label-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.ms-field-value { font-size: 11px; color: var(--ms-text-2); font-weight: 500; }

.ms-field-hint {
  font-size: 11px;
  color: var(--ms-text-3);
  min-height: 16px;
}
.ms-field-hint.is-error { color: var(--ms-danger); }
.ms-field-hint.is-success { color: var(--ms-success); }

.ms-input, .ms-select {
  width: 100%;
  padding: 9px 11px;
  background: var(--ms-surface-2);
  border: 1px solid var(--ms-border);
  border-radius: var(--ms-r-sm);
  color: var(--ms-text);
  font-size: 13px;
  font-family: inherit;
  outline: none;
  appearance: none;
  transition: border-color var(--ms-dur-fast), box-shadow var(--ms-dur-fast), background var(--ms-dur-fast);
}

.ms-input:focus, .ms-select:focus {
  border-color: rgba(99,102,241,0.5);
  box-shadow: 0 0 0 3px rgba(99,102,241,0.12);
  background: var(--ms-surface-3);
}

.ms-input::placeholder { color: var(--ms-text-3); }

.ms-select {
  background-image: url("data:image/svg+xml,%3Csvg width='10' height='6' viewBox='0 0 10 6' fill='none' xmlns='http://www.w3.org/2000/svg'%3E%3Cpath d='M1 1l4 4 4-4' stroke='%235c5d6e' stroke-width='1.5' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 10px center;
  padding-right: 28px;
  cursor: pointer;
}

.ms-select option { background: var(--ms-surface-2); color: var(--ms-text); }

.ms-range {
  width: 100%;
  appearance: none;
  height: 4px;
  border-radius: 4px;
  background: var(--ms-surface-3);
  outline: none;
  cursor: pointer;
}
.ms-range::-webkit-slider-thumb {
  appearance: none;
  width: 16px; height: 16px;
  border-radius: 50%;
  background: var(--ms-accent);
  border: 2px solid var(--ms-bg);
  box-shadow: 0 0 8px var(--ms-accent-glow);
  cursor: grab;
  transition: transform var(--ms-dur-fast) var(--ms-spring);
}
.ms-range::-webkit-slider-thumb:active { cursor: grabbing; transform: scale(1.2); }

/* ═══════════════════════════════════════════════
   BUTTONS
═══════════════════════════════════════════════ */

.ms-btn {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  padding: 8px 16px;
  border-radius: var(--ms-r-sm);
  font-size: 13px;
  font-weight: 600;
  font-family: inherit;
  cursor: pointer;
  border: 1px solid transparent;
  transition:
    background var(--ms-dur-fast),
    border-color var(--ms-dur-fast),
    color var(--ms-dur-fast),
    transform var(--ms-dur-fast) var(--ms-spring),
    box-shadow var(--ms-dur-fast);
  text-decoration: none;
  white-space: nowrap;
}

.ms-btn:active { transform: scale(0.97); }

.ms-btn--primary {
  background: var(--ms-accent);
  color: white;
  box-shadow: 0 2px 12px rgba(99,102,241,0.4);
}
.ms-btn--primary:hover {
  background: #4f52e8;
  box-shadow: 0 4px 20px rgba(99,102,241,0.5);
}

.ms-btn--danger {
  background: var(--ms-danger-bg);
  color: var(--ms-danger);
  border-color: rgba(239,68,68,0.25);
}
.ms-btn--danger:hover {
  background: var(--ms-danger);
  color: white;
  border-color: transparent;
}

.ms-btn--success {
  background: var(--ms-success-bg);
  color: var(--ms-success);
  border-color: rgba(16,185,129,0.25);
}
.ms-btn--success:hover {
  background: var(--ms-success);
  color: white;
  border-color: transparent;
}

.ms-btn--ghost {
  background: transparent;
  color: var(--ms-text-2);
  border-color: var(--ms-border);
}
.ms-btn--ghost:hover { background: var(--ms-surface-2); color: var(--ms-text); }

.ms-btn--glass {
  background: rgba(255,255,255,0.06);
  color: var(--ms-text-2);
  border-color: var(--ms-border);
  -webkit-backdrop-filter: blur(8px);
  backdrop-filter: blur(8px);
}
.ms-btn--glass:hover { background: rgba(255,255,255,0.1); color: var(--ms-text); }

.ms-btn--sm { padding: 5px 12px; font-size: 12px; }
.ms-btn--lg { padding: 11px 22px; font-size: 14px; }
.ms-btn--full { width: 100%; justify-content: center; }

/* Spinner */
.ms-spinner {
  width: 18px; height: 18px;
  border-radius: 50%;
  border: 2px solid var(--ms-border-strong);
  border-top-color: var(--ms-accent);
  animation: ms-spin 0.7s linear infinite;
  flex-shrink: 0;
}
.ms-spinner--sm { width: 14px; height: 14px; border-width: 1.5px; }

/* ═══════════════════════════════════════════════
   KEYFRAMES
═══════════════════════════════════════════════ */

@keyframes ms-fade-in {
  from { opacity: 0; }
  to   { opacity: 1; }
}

@keyframes ms-fade-up {
  from { opacity: 0; transform: translateY(16px); }
  to   { opacity: 1; transform: translateY(0); }
}

@keyframes ms-spin {
  to { transform: rotate(360deg); }
}

@keyframes ms-pulse {
  0%, 100% { opacity: 1; transform: scale(1); }
  50%       { opacity: 0.6; transform: scale(0.9); }
}

@keyframes ms-incoming-pulse {
  0%, 100% { box-shadow: 0 0 0 8px rgba(99,102,241,0.15), 0 0 0 16px rgba(99,102,241,0.07); }
  50%       { box-shadow: 0 0 0 12px rgba(99,102,241,0.2), 0 0 0 24px rgba(99,102,241,0.05); }
}

@keyframes ms-tile-in {
  from { opacity: 0; transform: scale(0.94); }
  to   { opacity: 1; transform: scale(1); }
}

@keyframes ms-bounce-in {
  0%   { transform: scale(0); }
  60%  { transform: scale(1.2); }
  100% { transform: scale(1); }
}

@keyframes ms-dialog-in {
  from { opacity: 0; transform: scale(0.94) translateY(10px); }
  to   { opacity: 1; transform: scale(1) translateY(0); }
}

@keyframes ms-dropdown-in {
  from { opacity: 0; transform: translateX(-50%) translateY(6px); }
  to   { opacity: 1; transform: translateX(-50%) translateY(0); }
}

@keyframes ms-toast-in {
  from { opacity: 0; transform: translateY(8px) scale(0.96); }
  to   { opacity: 1; transform: translateY(0) scale(1); }
}

/* ═══════════════════════════════════════════════
   SCROLLBAR
═══════════════════════════════════════════════ */
* { scrollbar-width: thin; scrollbar-color: var(--ms-surface-3) transparent; }
*::-webkit-scrollbar { width: 5px; height: 5px; }
*::-webkit-scrollbar-track { background: transparent; }
*::-webkit-scrollbar-thumb { background: var(--ms-surface-3); border-radius: 4px; }

/* ═══════════════════════════════════════════════
   REDUCED MOTION
═══════════════════════════════════════════════ */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 1ms !important;
    transition-duration: 1ms !important;
  }
  .ms-lobby-orb { animation: none; }
}