/* ============================================================
   БЫСТРАЯ СМЕНА ЦВЕТОВ ТЕМЫ
   Поменяй значения ниже — и перекрасится всё приложение сразу:
   --accent1 / --accent2  — главный градиент (кнопки, свои сообщения, шапка)
   --bg-top / --bg-bottom — фоновый градиент экрана (сверху вниз)
   --bubble-other         — цвет чужих сообщений
   ============================================================ */
:root{
  --bg-top:#fbf1e4;
  --bg-bottom:#f5deb8;
  --panel:#fffaf4;
  --accent1:#ffb37b;
  --accent2:#ff7e47;
  --text:#4a3728;
  --muted:#a68a72;
  --border:#eddcc7;
  --bubble-other:#ececec;
  --bubble-other-text:#3d3d3d;
  --danger1:#f08a7a;
  --danger2:#e0533f;
  --accept1:#9fd9a0;
  --accept2:#5fb865;
  --online:#4caf50;
  --vh:1vh;
}
html[data-theme="dark"]{
  --bg-top:#241d18;
  --bg-bottom:#171310;
  --panel:#2b2320;
  --accent1:#ffb37b;
  --accent2:#ff7e47;
  --text:#f1e6da;
  --muted:#a08d7c;
  --border:#3c322b;
  --bubble-other:#3a322c;
  --bubble-other-text:#f1e6da;
  --danger1:#f08a7a;
  --danger2:#e0533f;
  --accept1:#9fd9a0;
  --accept2:#5fb865;
  --online:#4caf50;
}
*{box-sizing:border-box;-webkit-tap-highlight-color:transparent;}
button{font-family:inherit;-webkit-appearance:none;appearance:none;outline:none;}
button:focus-visible,input:focus-visible{outline:2px solid var(--accent2);outline-offset:2px;}

/* --- Viewport / scroll fix (mobile browser toolbar + PC bounce) --- */
html,body{
  height:100%;
  margin:0;
  overflow:hidden;
  overscroll-behavior:none;
  -webkit-overflow-scrolling:touch;
}
body{
  font-family:'Segoe UI',Roboto,'Helvetica Neue',Arial,sans-serif;color:var(--text);
  background:linear-gradient(180deg,var(--bg-top),var(--bg-bottom));background-attachment:fixed;
  transition:background .2s ease,color .2s ease;
}
.hidden{display:none !important;}
.screen{
  width:100vw;
  height:100vh;                              /* fallback */
  height:calc(var(--vh, 1vh) * 100);         /* corrected real viewport (mobile toolbar) */
  height:100dvh;                             /* modern browsers */
  overflow:hidden;
}

/* --- Auth --- */
#auth-screen{display:flex;align-items:center;justify-content:center;background:linear-gradient(160deg,#fbe7d0,#f7c99b 60%,#f3ac78);}
html[data-theme="dark"] #auth-screen{background:linear-gradient(160deg,#241d18,#1c1611 60%,#171310);}
.auth-box{background:var(--panel);padding:36px 32px;border-radius:22px;width:340px;max-width:90vw;box-shadow:0 20px 50px rgba(150,90,40,.18);max-height:90vh;overflow-y:auto;}
.logo{font-size:26px;font-weight:700;text-align:center;margin-bottom:18px;display:flex;align-items:center;justify-content:center;gap:8px;}
.logo-img{width:34px;height:34px;border-radius:9px;object-fit:cover;display:block;}
.logo-img.small{width:24px;height:24px;border-radius:6px;}
.tabs{display:flex;background:#f3e6d6;border-radius:12px;padding:4px;margin-bottom:20px;}
html[data-theme="dark"] .tabs{background:#201914;}
.tab{flex:1;border:none;background:none;padding:10px;border-radius:9px;cursor:pointer;font-weight:600;color:var(--muted);transition:.25s;}
.tab.active{background:linear-gradient(135deg,var(--accent1),var(--accent2));color:#fff;box-shadow:0 4px 12px rgba(255,126,71,.35);}
.auth-form{display:flex;flex-direction:column;gap:12px;}
.auth-form input{padding:12px 14px;border-radius:12px;border:1.5px solid var(--border);background:#fffdfa;font-size:14px;outline:none;transition:.2s;color:var(--text);}
html[data-theme="dark"] .auth-form input{background:#1f1813;}
.auth-form input:focus{border-color:var(--accent2);box-shadow:0 0 0 3px rgba(255,126,71,.15);}
.auth-error{color:var(--danger2);font-size:13px;min-height:16px;text-align:center;}

/* --- Buttons --- */
.btn-primary{background:linear-gradient(135deg,var(--accent1),var(--accent2));background-size:160% 160%;background-position:0% 50%;color:#fff;border:none;border-radius:12px;padding:12px 18px;font-weight:600;cursor:pointer;transition:transform .18s ease,background-position .4s ease,box-shadow .18s ease,opacity .2s;box-shadow:0 4px 14px rgba(255,126,71,.25);}
.btn-primary:hover{transform:translateY(-2px) scale(1.02);background-position:100% 50%;box-shadow:0 6px 18px rgba(255,126,71,.4);}
.btn-primary:active{transform:translateY(0) scale(.97);}
.btn-primary:disabled{opacity:.5;cursor:not-allowed;transform:none;box-shadow:none;}
.btn-primary.small{padding:8px 14px;}
.btn-primary.round{border-radius:50%;width:44px;height:44px;padding:0;font-size:16px;display:flex;align-items:center;justify-content:center;flex-shrink:0;}
.btn-danger{background:linear-gradient(135deg,var(--danger1),var(--danger2));color:#fff;border:none;border-radius:12px;padding:11px 16px;font-weight:600;cursor:pointer;width:100%;transition:.2s;}
.btn-danger:hover{transform:translateY(-2px);box-shadow:0 6px 16px rgba(224,83,63,.35);}
.btn-secondary{background:var(--bubble-other);color:var(--text);border:none;border-radius:12px;padding:11px 16px;font-weight:600;cursor:pointer;width:100%;transition:.2s;}
.btn-secondary:hover{transform:translateY(-2px);opacity:.85;}

/* --- Кастомное подтверждение (вместо системного confirm браузера) --- */
.confirm-box{width:300px;}
.confirm-text{margin:4px 0 20px;font-size:15px;line-height:1.45;color:var(--text);text-align:center;}
.confirm-actions{display:flex;gap:10px;}
.confirm-actions button{flex:1;margin:0;}

/* --- App layout --- */
#app-screen{display:flex;height:100%;overflow:hidden;}
.sidebar{width:320px;min-width:320px;background:var(--panel);display:flex;flex-direction:column;border-right:1px solid var(--border);}
.sidebar-header{padding:18px 16px 10px;}
.app-title{font-size:20px;font-weight:700;display:flex;align-items:center;gap:8px;}
.search-wrap{padding:0 14px 12px;}
#search-input{width:100%;padding:10px 14px;border-radius:20px;border:1.5px solid var(--border);background:#fffdfa;outline:none;font-size:14px;color:var(--text);}
html[data-theme="dark"] #search-input{background:#1f1813;}
#search-input:focus{border-color:var(--accent2);}
.search-results{max-height:200px;overflow-y:auto;overscroll-behavior:contain;border-bottom:1px solid var(--border);}
.chat-list{flex:1;overflow-y:auto;overscroll-behavior:contain;}
.chat-item,.result-item{display:flex;align-items:center;gap:12px;padding:11px 14px;cursor:pointer;transition:background .15s;}
.chat-item:hover,.result-item:hover{background:#fbe9d7;}
html[data-theme="dark"] .chat-item:hover,html[data-theme="dark"] .result-item:hover{background:#332a23;}
.chat-item.active{background:linear-gradient(135deg,#ffe3c4,#ffd2ac);}
html[data-theme="dark"] .chat-item.active{background:linear-gradient(135deg,#4a3626,#5a3f27);}
.chat-item-body{flex:1;min-width:0;}
.chat-item-top{display:flex;justify-content:space-between;font-size:14px;}
.chat-item-name{font-weight:600;}
.chat-item-time{color:var(--muted);font-size:11px;}
.chat-item-preview{color:var(--muted);font-size:12.5px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;}
.empty-state{margin:auto;text-align:center;color:var(--muted);font-size:14px;padding:40px 24px;line-height:1.5;}

.avatar{position:relative;width:42px;height:42px;border-radius:50%;background:linear-gradient(135deg,var(--accent1),var(--accent2));color:#fff;display:flex;align-items:center;justify-content:center;font-weight:700;flex-shrink:0;}
.avatar.big{width:76px;height:76px;font-size:28px;margin:0 auto 12px;}
.avatar.online::after{content:'';position:absolute;bottom:-1px;right:-1px;width:11px;height:11px;background:var(--online);border:2px solid var(--panel);border-radius:50%;}

.my-profile-bar{display:flex;align-items:center;gap:12px;padding:12px 14px;border-top:1px solid var(--border);cursor:pointer;transition:background .15s;}
.my-profile-bar:hover{background:#fbe9d7;}
html[data-theme="dark"] .my-profile-bar:hover{background:#332a23;}
.my-name{font-weight:600;}

.chat-area{flex:1;display:flex;flex-direction:column;background:#fdf6ee;position:relative;min-width:0;}
html[data-theme="dark"] .chat-area{background:#201812;}
.chat-placeholder{margin:auto;color:var(--muted);font-size:15px;text-align:center;padding:0 24px;}
.chat-window{display:flex;flex-direction:column;height:100%;overflow:hidden;}
.chat-header{display:flex;align-items:center;justify-content:space-between;padding:10px 16px;background:var(--panel);border-bottom:1px solid var(--border);min-height:64px;flex-shrink:0;}
.chat-header-info{display:flex;align-items:center;}
.back-btn{display:none;background:none;border:none;font-size:22px;cursor:pointer;padding:8px;margin-right:2px;border-radius:50%;color:var(--text);transition:background .15s;}
.back-btn:hover{background:#f6e2c9;}
.chat-header-clickable{display:flex;align-items:center;gap:12px;cursor:pointer;min-width:0;}
.chat-header-text{min-width:0;}
.chat-header-name{font-weight:700;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;}
.chat-header-status{font-size:12px;color:var(--muted);min-height:15px;}
.chat-header-actions{display:flex;align-items:center;gap:4px;position:relative;}
.icon-btn{background:none;border:none;font-size:19px;cursor:pointer;padding:9px;border-radius:50%;transition:background .18s,transform .18s,opacity .2s;display:flex;align-items:center;justify-content:center;}
.icon-btn:hover{background:#f6e2c9;transform:scale(1.08);}
.icon-btn:active{transform:scale(.94);}
.icon-btn:disabled{opacity:.35;cursor:not-allowed;transform:none;background:none;}
.dropdown{position:absolute;top:44px;right:0;background:var(--panel);border-radius:12px;box-shadow:0 10px 30px rgba(120,70,30,.2);overflow:hidden;min-width:210px;z-index:10;}
.dropdown button{display:block;width:100%;text-align:left;padding:12px 16px;border:none;background:none;cursor:pointer;font-size:14px;color:var(--text);transition:background .15s;}
.dropdown button:hover{background:#fbe9d7;}
html[data-theme="dark"] .dropdown button:hover{background:#332a23;}
.dropdown button:disabled{color:var(--muted);cursor:not-allowed;}

.messages{flex:1;overflow-y:auto;overscroll-behavior:contain;padding:18px;display:flex;flex-direction:column;gap:8px;}
.message{max-width:70%;padding:10px 14px;border-radius:16px;font-size:14.5px;line-height:1.4;position:relative;word-wrap:break-word;box-shadow:0 1px 3px rgba(90,50,20,.08);animation:msgIn .2s ease;}
@keyframes msgIn{from{opacity:0;transform:translateY(6px);}to{opacity:1;transform:translateY(0);}}
.message.other{align-self:flex-start;background:var(--bubble-other);color:var(--bubble-other-text);border-bottom-left-radius:4px;}
.message.mine{align-self:flex-end;background:linear-gradient(135deg,var(--accent1),var(--accent2));color:#fff;border-bottom-right-radius:4px;}
.message.deleted{font-style:italic;opacity:.6;}
.message .time{display:block;font-size:10.5px;opacity:.7;margin-top:3px;text-align:right;}
.typing-indicator{align-self:flex-start;color:var(--muted);font-size:13px;font-style:italic;padding:0 6px;}

.input-bar{display:flex;gap:10px;padding:14px;background:var(--panel);border-top:1px solid var(--border);align-items:center;flex-shrink:0;}
#message-input{flex:1;padding:12px 16px;border-radius:20px;border:1.5px solid var(--border);outline:none;font-size:14px;background:#fffdfa;color:var(--text);}
html[data-theme="dark"] #message-input{background:#1f1813;}
#message-input:focus{border-color:var(--accent2);}
.blocked-note{text-align:center;padding:12px;color:var(--danger2);font-weight:600;background:#fbeae6;}

/* --- Modals --- */
.modal{position:fixed;inset:0;background:rgba(74,55,40,.35);display:flex;align-items:center;justify-content:center;z-index:50;animation:fadeIn .15s ease;}
@keyframes fadeIn{from{opacity:0;}to{opacity:1;}}
.modal-box{background:var(--panel);border-radius:20px;padding:30px;width:320px;max-width:90vw;position:relative;box-shadow:0 20px 60px rgba(74,55,40,.25);text-align:center;animation:popIn .18s ease;max-height:85vh;max-height:calc(var(--vh,1vh)*85);overflow-y:auto;overscroll-behavior:contain;}
@keyframes popIn{from{opacity:0;transform:scale(.94);}to{opacity:1;transform:scale(1);}}
.modal-close{position:absolute;top:12px;right:14px;background:none;border:none;font-size:16px;cursor:pointer;color:var(--muted);padding:6px;border-radius:50%;transition:background .15s;}
.modal-close:hover{background:#f2e4d0;}
.modal-box label{display:block;text-align:left;font-size:12.5px;color:var(--muted);margin:10px 0 4px;}
.modal-box input{width:100%;padding:10px 12px;border-radius:10px;border:1.5px solid var(--border);font-size:14px;outline:none;background:#fffdfa;color:var(--text);}
html[data-theme="dark"] .modal-box input{background:#1f1813;}
.edit-row{display:flex;gap:8px;}
.edit-row input{flex:1;}
.modal-box hr{border:none;border-top:1px solid var(--border);margin:18px 0;}
.modal-box h3{text-align:left;font-size:14px;color:var(--muted);margin:0 0 10px;}
.muted{color:var(--muted);}

/* --- Settings rows (toggles / slider) --- */
.setting-row{display:flex;align-items:center;justify-content:space-between;padding:9px 0;font-size:14px;text-align:left;gap:12px;}
.setting-row.column{flex-direction:column;align-items:stretch;gap:6px;}
.setting-row-top{display:flex;justify-content:space-between;font-size:14px;}
.setting-value{color:var(--muted);font-size:12.5px;min-width:36px;text-align:right;}

.switch{position:relative;display:inline-block;width:42px;height:24px;flex-shrink:0;}
.switch input{opacity:0;width:0;height:0;}
.switch-slider{position:absolute;cursor:pointer;inset:0;background:var(--border);border-radius:999px;transition:.2s;}
.switch-slider::before{content:'';position:absolute;height:18px;width:18px;left:3px;top:3px;background:#fff;border-radius:50%;transition:.2s;box-shadow:0 1px 3px rgba(0,0,0,.25);}
.switch input:checked + .switch-slider{background:linear-gradient(135deg,var(--accent1),var(--accent2));}
.switch input:checked + .switch-slider::before{transform:translateX(18px);}

.slider{-webkit-appearance:none;appearance:none;width:100%;height:6px;border-radius:999px;background:var(--border);outline:none;cursor:pointer;}
.slider::-webkit-slider-thumb{-webkit-appearance:none;appearance:none;width:18px;height:18px;border-radius:50%;background:linear-gradient(135deg,var(--accent1),var(--accent2));box-shadow:0 1px 4px rgba(0,0,0,.25);cursor:pointer;border:2px solid #fff;}
.slider::-moz-range-thumb{width:18px;height:18px;border-radius:50%;background:linear-gradient(135deg,var(--accent1),var(--accent2));box-shadow:0 1px 4px rgba(0,0,0,.25);cursor:pointer;border:2px solid #fff;}

.call-box p{color:var(--muted);}
.call-actions{display:flex;justify-content:center;gap:20px;margin-top:18px;}
.round-btn{width:56px;height:56px;border-radius:50%;border:none;font-size:22px;cursor:pointer;background:#f0e2cf;transition:transform .18s,box-shadow .18s;display:flex;align-items:center;justify-content:center;}
html[data-theme="dark"] .round-btn{background:#3a322c;}
.round-btn:hover{transform:translateY(-2px) scale(1.05);}
.round-btn:active{transform:translateY(0) scale(.95);}
.round-btn.danger{background:linear-gradient(135deg,var(--danger1),var(--danger2));color:#fff;}
.round-btn.accept{background:linear-gradient(135deg,var(--accept1),var(--accept2));color:#fff;}
.round-btn.muted-state{background:linear-gradient(135deg,#d8d8d8,#b6b6b6);}

@keyframes pulse{0%{box-shadow:0 0 0 0 rgba(255,126,71,.45);}70%{box-shadow:0 0 0 20px rgba(255,126,71,0);}100%{box-shadow:0 0 0 0 rgba(255,126,71,0);}}
.pulsing{animation:pulse 1.6s infinite;}

.toast{position:fixed;top:20px;left:50%;transform:translateX(-50%);background:var(--text);color:var(--panel);padding:10px 18px;border-radius:10px;font-size:13.5px;z-index:100;box-shadow:0 8px 20px rgba(0,0,0,.2);animation:fadeIn .2s ease;}

/* --- Мобильная адаптация --- */
@media (max-width:768px){
  .sidebar{width:100%;min-width:100%;}
  .chat-area{position:fixed;inset:0;transform:translateX(100%);transition:transform .25s ease;z-index:5;}
  #app-screen.chat-open .chat-area{transform:translateX(0);}
  #app-screen.chat-open .sidebar{display:none;}
  .back-btn{display:flex;}
  .message{max-width:82%;}
  .modal-box{width:300px;}
}