:root{--color-bg: #0d0f14;--color-surface: #161a24;--color-surface-2: #1e2333;--color-border: rgba(255, 255, 255, .07);--color-primary: #5c6ef8;--color-primary-hover: #4a5de6;--color-success: #22c55e;--color-success-hover: #16a34a;--color-danger: #ef4444;--color-danger-hover: #dc2626;--color-text: #e8eaf6;--color-text-muted: #7c84a8;--color-accent: rgba(92, 110, 248, .15);--radius-sm: 8px;--radius-md: 14px;--radius-lg: 22px;--radius-full: 9999px;--shadow-card: 0 8px 32px rgba(0, 0, 0, .45);--shadow-button: 0 2px 8px rgba(92, 110, 248, .3);--font: "Inter", system-ui, sans-serif;--transition: .15s ease}*,*:before,*:after{box-sizing:border-box;margin:0;padding:0}html,body,#root{height:100%;font-family:var(--font);background-color:var(--color-bg);color:var(--color-text);-webkit-font-smoothing:antialiased}.btn{display:inline-flex;align-items:center;justify-content:center;gap:6px;border:none;border-radius:var(--radius-full);font-family:var(--font);font-weight:500;cursor:pointer;transition:background-color var(--transition),transform var(--transition),opacity var(--transition);padding:0 20px;height:44px;font-size:.9rem}.btn:disabled{opacity:.4;cursor:not-allowed}.btn:active:not(:disabled){transform:scale(.97)}.btn--primary{background-color:var(--color-primary);color:#fff;box-shadow:var(--shadow-button)}.btn--primary:hover:not(:disabled){background-color:var(--color-primary-hover)}.btn--success{background-color:var(--color-success);color:#fff}.btn--success:hover:not(:disabled){background-color:var(--color-success-hover)}.btn--danger{background-color:var(--color-danger);color:#fff}.btn--danger:hover:not(:disabled){background-color:var(--color-danger-hover)}.btn--sm{height:36px;padding:0 14px;font-size:.83rem}.btn--lg{height:52px;padding:0 32px;font-size:1rem}.registration-overlay{position:fixed;top:0;right:0;bottom:0;left:0;display:flex;align-items:center;justify-content:center;background:radial-gradient(ellipse at 60% 30%,rgba(92,110,248,.18),transparent 70%),var(--color-bg);padding:24px;z-index:10}.registration-card{background:var(--color-surface);border:1px solid var(--color-border);border-radius:var(--radius-lg);box-shadow:var(--shadow-card);padding:48px 40px;width:100%;max-width:420px;display:flex;flex-direction:column;align-items:center;gap:12px;animation:fadeInUp .35s ease both}.registration-card__logo{font-size:3rem;margin-bottom:4px}.registration-card__title{font-size:1.6rem;font-weight:700;letter-spacing:-.02em}.registration-card__subtitle{font-size:.95rem;color:var(--color-text-muted);margin-bottom:8px}.registration-card__form{display:flex;flex-direction:column;gap:12px;width:100%;margin-top:8px}.registration-card__input{width:100%;background:var(--color-surface-2);border:1px solid var(--color-border);border-radius:var(--radius-md);color:var(--color-text);font-family:var(--font);font-size:1rem;padding:14px 16px;outline:none;transition:border-color var(--transition)}.registration-card__input:focus{border-color:var(--color-primary)}.registration-card__input::placeholder{color:var(--color-text-muted)}.registration-card__error{color:var(--color-danger);font-size:.85rem}.app-layout{min-height:100%;display:flex;flex-direction:column;background:radial-gradient(ellipse at 70% 5%,rgba(92,110,248,.12),transparent 60%),var(--color-bg)}.app-header{display:flex;align-items:center;gap:10px;padding:18px 28px;border-bottom:1px solid var(--color-border);background:#161a24cc;-webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);position:sticky;top:0;z-index:5}.app-header__logo{font-size:1.5rem}.app-header__brand{font-size:1.15rem;font-weight:700;letter-spacing:-.01em;flex:1}.app-header__user{font-size:.9rem;color:var(--color-text-muted);background:var(--color-surface-2);border:1px solid var(--color-border);border-radius:var(--radius-full);padding:6px 14px}.directory{padding:32px 28px;max-width:700px;width:100%;margin:0 auto}.directory__title{font-size:1.1rem;font-weight:600;margin-bottom:20px;color:var(--color-text-muted);text-transform:uppercase;letter-spacing:.06em;font-size:.8rem}.directory__list{display:flex;flex-direction:column;gap:12px}.directory__empty{color:var(--color-text-muted);text-align:center;margin-top:48px}.user-card{display:flex;align-items:center;gap:16px;background:var(--color-surface);border:1px solid var(--color-border);border-radius:var(--radius-md);padding:16px 20px;transition:border-color var(--transition),box-shadow var(--transition)}.user-card:hover{border-color:#5c6ef84d;box-shadow:0 4px 20px #0000004d}.user-card__avatar{width:44px;height:44px;border-radius:var(--radius-full);background:linear-gradient(135deg,var(--color-primary),#8b5cf6);display:flex;align-items:center;justify-content:center;font-weight:700;font-size:1.1rem;flex-shrink:0}.user-card__info{flex:1;display:flex;flex-direction:column;gap:3px}.user-card__name{font-weight:600;font-size:.95rem}.user-card__status{font-size:.78rem;font-weight:500;display:flex;align-items:center;gap:5px}.user-card__status:before{content:"";width:7px;height:7px;border-radius:50%;display:inline-block}.user-card__status--available{color:var(--color-success)}.user-card__status--available:before{background-color:var(--color-success);box-shadow:0 0 6px var(--color-success)}.user-card__status--busy{color:var(--color-danger)}.user-card__status--busy:before{background-color:var(--color-danger)}.call-dialog-overlay{position:fixed;top:0;right:0;bottom:0;left:0;background:#0009;-webkit-backdrop-filter:blur(6px);backdrop-filter:blur(6px);display:flex;align-items:center;justify-content:center;z-index:50;padding:24px;animation:fadeIn .2s ease both}.call-dialog{background:var(--color-surface);border:1px solid var(--color-border);border-radius:var(--radius-lg);box-shadow:var(--shadow-card);padding:40px 36px;max-width:360px;width:100%;display:flex;flex-direction:column;align-items:center;gap:10px;animation:slideUp .25s ease both}.call-dialog__avatar{width:72px;height:72px;border-radius:var(--radius-full);background:linear-gradient(135deg,var(--color-primary),#8b5cf6);display:flex;align-items:center;justify-content:center;font-size:2rem;font-weight:700;margin-bottom:4px;animation:ring 1s ease infinite}@keyframes ring{0%,to{box-shadow:0 0 #5c6ef866}50%{box-shadow:0 0 0 12px #5c6ef800}}.call-dialog__title{font-size:.85rem;color:var(--color-text-muted);text-transform:uppercase;letter-spacing:.07em;font-weight:600}.call-dialog__name{font-size:1.3rem;font-weight:700}.call-dialog__name span{font-weight:400;color:var(--color-text-muted);font-size:1rem}.call-dialog__actions{display:flex;gap:16px;margin-top:16px;width:100%}.call-dialog__actions .btn{flex:1}.active-call{position:fixed;top:0;right:0;bottom:0;left:0;background:#000;display:flex;flex-direction:column;z-index:40}.video-grid{flex:1;position:relative;overflow:hidden}.video-grid__remote{width:100%;height:100%;object-fit:cover;display:block;background:#111}.video-grid__local{position:absolute;bottom:80px;right:16px;width:120px;height:90px;border-radius:var(--radius-md);object-fit:cover;border:2px solid rgba(255,255,255,.15);box-shadow:0 4px 16px #00000080;background:#222}@media (min-width: 600px){.video-grid__local{width:200px;height:150px;bottom:96px;right:24px}}.call-controls{position:absolute;bottom:0;left:50%;transform:translate(-50%);display:flex;align-items:center;gap:12px;padding:16px 24px;background:#161a24d9;-webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);border-top:1px solid var(--color-border);border-radius:var(--radius-lg) var(--radius-lg) 0 0;margin-bottom:0;width:100%;justify-content:center}.call-controls__btn{width:52px;height:52px;border-radius:var(--radius-full);border:1px solid var(--color-border);background:var(--color-surface-2);font-size:1.3rem;cursor:pointer;display:flex;align-items:center;justify-content:center;transition:background-color var(--transition),transform var(--transition),border-color var(--transition);flex-shrink:0}.call-controls__btn:hover{background:var(--color-accent);border-color:var(--color-primary)}.call-controls__btn:active{transform:scale(.92)}.call-controls__btn--active{background:var(--color-accent);border-color:var(--color-primary)}.call-controls__btn--hangup{background:var(--color-danger);border-color:transparent;color:#fff}.call-controls__btn--hangup:hover{background:var(--color-danger-hover);border-color:transparent}.active-call__chat-drawer{position:absolute;top:0;right:0;bottom:84px;width:320px;background:#161a24f2;-webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);border-left:1px solid var(--color-border);display:flex;flex-direction:column;animation:slideInRight .25s ease both}@media (max-width: 599px){.active-call__chat-drawer{width:100%;top:auto;bottom:84px;height:50%;border-left:none;border-top:1px solid var(--color-border);animation:slideUp .25s ease both}}.chat-box{display:flex;flex-direction:column;height:100%;padding:16px;gap:12px}.chat-box__title{font-weight:600;font-size:.9rem;color:var(--color-text-muted);text-transform:uppercase;letter-spacing:.07em}.chat-box__messages{flex:1;overflow-y:auto;display:flex;flex-direction:column;gap:8px;scrollbar-width:thin;scrollbar-color:var(--color-border) transparent}.chat-box__message{display:flex;flex-direction:column;gap:2px;max-width:85%}.chat-box__message--local{align-self:flex-end;align-items:flex-end}.chat-box__message--remote{align-self:flex-start;align-items:flex-start}.chat-box__message-label{font-size:.7rem;color:var(--color-text-muted);font-weight:600}.chat-box__message-text{background:var(--color-surface-2);border-radius:var(--radius-md);padding:8px 12px;font-size:.88rem;line-height:1.45;word-break:break-word}.chat-box__message--local .chat-box__message-text{background:var(--color-primary);color:#fff;border-radius:var(--radius-md) var(--radius-sm) var(--radius-md) var(--radius-md)}.chat-box__message--remote .chat-box__message-text{border-radius:var(--radius-sm) var(--radius-md) var(--radius-md) var(--radius-md)}.chat-box__form{display:flex;gap:8px}.chat-box__input{flex:1;background:var(--color-surface-2);border:1px solid var(--color-border);border-radius:var(--radius-md);color:var(--color-text);font-family:var(--font);font-size:.88rem;padding:10px 12px;outline:none;transition:border-color var(--transition)}.chat-box__input:focus{border-color:var(--color-primary)}.chat-box__input::placeholder{color:var(--color-text-muted)}@keyframes fadeIn{0%{opacity:0}to{opacity:1}}@keyframes fadeInUp{0%{opacity:0;transform:translateY(20px)}to{opacity:1;transform:translateY(0)}}@keyframes slideUp{0%{opacity:0;transform:translateY(16px)}to{opacity:1;transform:translateY(0)}}@keyframes slideInRight{0%{opacity:0;transform:translate(24px)}to{opacity:1;transform:translate(0)}}