:root{--bg-primary: #0a0a0f;--bg-secondary: #12121a;--bg-card: rgba(255, 255, 255, .04);--bg-card-hover: rgba(255, 255, 255, .07);--bg-glass: rgba(255, 255, 255, .06);--bg-glass-strong: rgba(255, 255, 255, .1);--text-primary: #f0f0f5;--text-secondary: #8e8ea0;--text-tertiary: #5a5a6e;--text-accent: #7c5cff;--accent: #7c5cff;--accent-light: #9b7fff;--accent-glow: rgba(124, 92, 255, .3);--success: #34c759;--warning: #ff9500;--danger: #ff3b30;--info: #00c7be;--border: rgba(255, 255, 255, .08);--border-light: rgba(255, 255, 255, .04);--streak-spark: #FF9500;--streak-flame: #FF6B00;--streak-fire: #FF4500;--streak-blaze: #FF2D00;--streak-inferno: #FF0000;--streak-eternal: #CC0000;--streak-legendary: #FFD700;--ghost: #00d4ff;--ghost-glow: rgba(0, 212, 255, .2);--space-xs: 4px;--space-sm: 8px;--space-md: 16px;--space-lg: 24px;--space-xl: 32px;--space-2xl: 48px;--radius-sm: 8px;--radius-md: 12px;--radius-lg: 16px;--radius-xl: 20px;--radius-full: 9999px;--shadow-sm: 0 2px 8px rgba(0, 0, 0, .3);--shadow-md: 0 4px 16px rgba(0, 0, 0, .4);--shadow-lg: 0 8px 32px rgba(0, 0, 0, .5);--shadow-glow: 0 0 20px var(--accent-glow);--font: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;--font-mono: "SF Mono", "Fira Code", monospace;--transition-fast: .15s cubic-bezier(.4, 0, .2, 1);--transition-normal: .25s cubic-bezier(.4, 0, .2, 1);--transition-slow: .35s cubic-bezier(.4, 0, .2, 1);--safe-top: env(safe-area-inset-top, 0px);--safe-bottom: env(safe-area-inset-bottom, 0px)}*,*:before,*:after{box-sizing:border-box;margin:0;padding:0}html{font-size:16px;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}body{font-family:var(--font);background:var(--bg-primary);color:var(--text-primary);line-height:1.5;overflow-x:hidden;min-height:100vh;padding-top:var(--safe-top);padding-bottom:var(--safe-bottom)}#root{min-height:100vh;display:flex;flex-direction:column}a{color:var(--accent);text-decoration:none}img{max-width:100%;display:block}button{font-family:var(--font);cursor:pointer;border:none;outline:none;background:none;color:var(--text-primary)}input,textarea{font-family:var(--font);background:var(--bg-glass);border:1px solid var(--border);border-radius:var(--radius-md);color:var(--text-primary);padding:var(--space-sm) var(--space-md);outline:none;transition:border-color var(--transition-fast);width:100%;font-size:16px}input:focus,textarea:focus{border-color:var(--accent)}input::placeholder,textarea::placeholder{color:var(--text-tertiary)}.glass-card{background:var(--bg-glass);backdrop-filter:blur(20px);-webkit-backdrop-filter:blur(20px);border:1px solid var(--border);border-radius:var(--radius-lg);transition:all var(--transition-normal)}.glass-card:hover{background:var(--bg-card-hover);border-color:#ffffff1f}.page{flex:1;display:flex;flex-direction:column;padding:var(--space-md);max-width:100%;animation:fadeIn .3s ease-out}@keyframes fadeIn{0%{opacity:0;transform:translateY(8px)}to{opacity:1;transform:translateY(0)}}@keyframes slideUp{0%{opacity:0;transform:translateY(20px)}to{opacity:1;transform:translateY(0)}}@keyframes pulse{0%,to{opacity:1}50%{opacity:.5}}@keyframes glow{0%,to{box-shadow:0 0 5px var(--accent-glow)}50%{box-shadow:0 0 20px var(--accent-glow),0 0 40px var(--accent-glow)}}.header{display:flex;align-items:center;justify-content:space-between;padding:var(--space-md);background:var(--bg-glass);-webkit-backdrop-filter:blur(20px);backdrop-filter:blur(20px);border-bottom:1px solid var(--border);position:sticky;top:0;z-index:100}.header__title{font-size:1.25rem;font-weight:700;background:linear-gradient(135deg,var(--accent),var(--accent-light));-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}.header__icon{width:36px;height:36px;display:flex;align-items:center;justify-content:center;background:var(--bg-glass);border-radius:var(--radius-full);border:1px solid var(--border);font-size:1.1rem;transition:all var(--transition-fast)}.header__icon:hover{background:var(--bg-glass-strong);border-color:var(--accent)}.bottom-nav{display:flex;align-items:center;justify-content:space-around;padding:var(--space-sm) 0;padding-bottom:calc(var(--space-sm) + var(--safe-bottom));background:var(--bg-glass);-webkit-backdrop-filter:blur(20px);backdrop-filter:blur(20px);border-top:1px solid var(--border);position:sticky;bottom:0;z-index:100}.bottom-nav__item{display:flex;flex-direction:column;align-items:center;gap:2px;padding:var(--space-xs) var(--space-md);border-radius:var(--radius-md);transition:all var(--transition-fast);font-size:.7rem;color:var(--text-tertiary)}.bottom-nav__item--active{color:var(--accent)}.bottom-nav__item:hover{color:var(--text-primary)}.bottom-nav__icon{font-size:1.4rem;line-height:1}.chat-list{display:flex;flex-direction:column;gap:2px}.chat-item{display:flex;align-items:center;gap:var(--space-md);padding:var(--space-md);border-radius:var(--radius-lg);transition:all var(--transition-fast);cursor:pointer}.chat-item:hover{background:var(--bg-card-hover)}.chat-item:active{transform:scale(.98)}.chat-item__avatar{width:48px;height:48px;border-radius:var(--radius-full);background:linear-gradient(135deg,var(--accent),#ff6b9d);display:flex;align-items:center;justify-content:center;font-size:1.2rem;font-weight:600;flex-shrink:0;color:#fff}.chat-item__body{flex:1;min-width:0}.chat-item__top{display:flex;align-items:center;justify-content:space-between;gap:var(--space-sm)}.chat-item__name{font-weight:600;font-size:.95rem;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.chat-item__time{font-size:.75rem;color:var(--text-tertiary);flex-shrink:0}.chat-item__bottom{display:flex;align-items:center;justify-content:space-between;gap:var(--space-sm);margin-top:2px}.chat-item__preview{font-size:.85rem;color:var(--text-secondary);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.chat-item__badges{display:flex;align-items:center;gap:var(--space-xs);flex-shrink:0}.streak-badge{display:inline-flex;align-items:center;gap:3px;font-size:.75rem;font-weight:600;padding:2px 6px;border-radius:var(--radius-full);background:#ff950026;color:var(--streak-spark)}.streak-badge--flame{color:var(--streak-flame);background:#ff6b0026}.streak-badge--fire{color:var(--streak-fire);background:#ff450026}.streak-badge--blaze{color:var(--streak-blaze);background:#ff2d0026}.streak-badge--inferno{color:var(--streak-inferno);background:#ff000026}.streak-badge--eternal{color:var(--streak-eternal);background:#cc000026}.streak-badge--legendary{color:var(--streak-legendary);background:#ffd70026;animation:glow 2s ease-in-out infinite}.ghost-toggle{display:flex;align-items:center;gap:var(--space-sm);padding:var(--space-sm) var(--space-md);background:var(--bg-glass);border:1px solid var(--border);border-radius:var(--radius-full);font-size:.85rem;transition:all var(--transition-normal)}.ghost-toggle--active{background:var(--ghost-glow);border-color:var(--ghost);color:var(--ghost)}.ghost-toggle__dot{width:8px;height:8px;border-radius:var(--radius-full);background:var(--text-tertiary);transition:all var(--transition-normal)}.ghost-toggle--active .ghost-toggle__dot{background:var(--ghost);box-shadow:0 0 8px var(--ghost);animation:pulse 2s ease-in-out infinite}.message-list{display:flex;flex-direction:column;gap:var(--space-sm);padding:var(--space-md) 0}.message-bubble{max-width:80%;padding:var(--space-sm) var(--space-md);border-radius:var(--radius-lg);font-size:.9rem;line-height:1.45;animation:slideUp .2s ease-out;position:relative}.message-bubble--incoming{align-self:flex-start;background:var(--bg-glass-strong);border:1px solid var(--border);border-bottom-left-radius:4px}.message-bubble--outgoing{align-self:flex-end;background:linear-gradient(135deg,var(--accent),#6a4fd4);border-bottom-right-radius:4px}.message-bubble__meta{display:flex;align-items:center;justify-content:flex-end;gap:var(--space-xs);margin-top:4px;font-size:.7rem;color:var(--text-tertiary)}.message-bubble--outgoing .message-bubble__meta{color:#fff9}.badge{display:inline-flex;align-items:center;gap:3px;padding:2px 8px;border-radius:var(--radius-full);font-size:.7rem;font-weight:600}.badge--deleted{background:#ff3b3026;color:var(--danger)}.badge--edited{background:#ff950026;color:var(--warning)}.badge--view-once{background:#7c5cff26;color:var(--accent)}.badge--ghost{background:var(--ghost-glow);color:var(--ghost)}.search-bar{position:relative;margin-bottom:var(--space-md)}.search-bar__icon{position:absolute;left:var(--space-md);top:50%;transform:translateY(-50%);color:var(--text-tertiary);font-size:1rem;pointer-events:none}.search-bar__input{padding-left:40px;height:44px;border-radius:var(--radius-xl);background:var(--bg-glass)}.media-player{background:var(--bg-glass);border:1px solid var(--border);border-radius:var(--radius-lg);padding:var(--space-md);display:flex;align-items:center;gap:var(--space-md)}.media-player__play{width:44px;height:44px;border-radius:var(--radius-full);background:linear-gradient(135deg,var(--accent),var(--accent-light));display:flex;align-items:center;justify-content:center;font-size:1.2rem;flex-shrink:0;transition:all var(--transition-fast)}.media-player__play:hover{transform:scale(1.05);box-shadow:var(--shadow-glow)}.media-player__waveform{flex:1;height:30px;display:flex;align-items:center;gap:2px}.media-player__bar{width:3px;background:var(--accent);border-radius:2px;opacity:.5;transition:height .1s ease}.media-player__bar--active{opacity:1}.media-player__time{font-size:.8rem;color:var(--text-secondary);font-variant-numeric:tabular-nums;flex-shrink:0}.settings-group{margin-bottom:var(--space-lg)}.settings-group__title{font-size:.75rem;font-weight:600;color:var(--text-tertiary);text-transform:uppercase;letter-spacing:.05em;padding:0 var(--space-md);margin-bottom:var(--space-sm)}.settings-item{display:flex;align-items:center;justify-content:space-between;padding:var(--space-md);transition:background var(--transition-fast);cursor:pointer}.settings-item:hover{background:var(--bg-card-hover)}.settings-item__left{display:flex;align-items:center;gap:var(--space-md)}.settings-item__icon{width:36px;height:36px;border-radius:var(--radius-md);display:flex;align-items:center;justify-content:center;font-size:1.1rem}.settings-item__label{font-size:.95rem}.settings-item__value{font-size:.85rem;color:var(--text-tertiary)}.toggle{width:48px;height:28px;border-radius:14px;background:var(--bg-glass-strong);border:1px solid var(--border);position:relative;transition:all var(--transition-normal);cursor:pointer}.toggle--active{background:var(--accent);border-color:var(--accent)}.toggle__knob{width:22px;height:22px;border-radius:var(--radius-full);background:#fff;position:absolute;top:2px;left:2px;transition:transform var(--transition-normal);box-shadow:var(--shadow-sm)}.toggle--active .toggle__knob{transform:translate(20px)}.skeleton{background:linear-gradient(90deg,var(--bg-glass) 25%,var(--bg-glass-strong) 50%,var(--bg-glass) 75%);background-size:200% 100%;animation:skeleton-loading 1.5s ease-in-out infinite;border-radius:var(--radius-md)}@keyframes skeleton-loading{0%{background-position:200% 0}to{background-position:-200% 0}}.btn{display:inline-flex;align-items:center;justify-content:center;gap:var(--space-sm);padding:var(--space-sm) var(--space-lg);border-radius:var(--radius-full);font-weight:600;font-size:.9rem;transition:all var(--transition-fast)}.btn--primary{background:linear-gradient(135deg,var(--accent),var(--accent-light));color:#fff}.btn--primary:hover{box-shadow:var(--shadow-glow);transform:translateY(-1px)}.btn--ghost{background:var(--ghost-glow);color:var(--ghost);border:1px solid var(--ghost)}::-webkit-scrollbar{width:4px}::-webkit-scrollbar-track{background:transparent}::-webkit-scrollbar-thumb{background:var(--border);border-radius:2px}::-webkit-scrollbar-thumb:hover{background:var(--text-tertiary)}.empty-state{display:flex;flex-direction:column;align-items:center;justify-content:center;padding:var(--space-2xl);text-align:center;gap:var(--space-md)}.empty-state__icon{font-size:3rem;opacity:.5}.empty-state__title{font-size:1.1rem;font-weight:600}.empty-state__text{font-size:.85rem;color:var(--text-secondary);max-width:280px}