/* GULAG.online — Styles */
:root {
    --bg-dark: #0a0a0a;
    --card-bg: #1a1a1a;
    --accent: #6a6a6a;
    --accent-bright: #999999;
    --text-light: #c8c8c8;
    --text-accent: #8a8a8a;
    --danger: #555555;
    --border: #555555;
    --border-hover: #888888;
}

* { margin: 0; padding: 0; box-sizing: border-box; }

html, body {
    height: 100%;
    overflow: hidden;
    margin: 0;
    padding: 0;
}

body {
    background: #0d0d0d;
    color: var(--text-light);
    font-family: 'Courier New', 'Liberation Mono', monospace;
}

/* Screen container — 100dvh respects iOS keyboard without JS */
.screen {
    display: none;
    position: fixed;
    top: 0; left: 0;
    width: 100%;
    height: 100%;
    height: 100dvh; /* dynamic viewport: auto-adjusts for keyboard */
    overflow: hidden;
}
.screen.active {
    display: flex;
    align-items: center;
    justify-content: center;
}
/* Chat screen: column flex, fills full viewport */
#screen-chat.active {
    flex-direction: column;
    align-items: stretch;
    justify-content: flex-start;
}

/* === SCREEN 1: LOGIN === */
#screen-login {
    background: #0a0505 url('img/tower-bg.png') center/cover no-repeat;
}
#screen-login::before {
    content: '';
    position: absolute;
    inset: 0;
    background: rgba(0,0,0,0.55);
}

.login-card {
    background: rgba(20,12,8,0.95);
    border: 1px solid var(--accent);
    border-radius: 4px;
    padding: 48px 44px;
    width: 420px;
    max-width: 90vw;
    text-align: center;
    position: relative;
    z-index: 1;
    box-shadow: 0 0 60px rgba(0,0,0,0.7), inset 0 0 30px rgba(0,0,0,0.4);
}

.login-header h1 {
    font-size: 34px;
    color: var(--text-accent);
    letter-spacing: 5px;
    font-weight: bold;
    text-transform: uppercase;
    margin-bottom: 6px;
}
.login-subtitle {
    font-size: 12px;
    color: #777;
    letter-spacing: 4px;
    margin-bottom: 28px;
}

.login-title {
    color: var(--text-accent);
    font-size: 15px;
    letter-spacing: 8px;
    border-top: 1px solid var(--accent);
    border-bottom: 1px solid var(--accent);
    padding: 10px 0;
    margin-bottom: 32px;
}

.login-fields label {
    display: block;
    text-align: left;
    font-size: 12px;
    color: var(--text-accent);
    letter-spacing: 3px;
    margin-bottom: 6px;
    margin-top: 20px;
}
.login-fields input {
    width: 100%;
    padding: 14px 16px;
    background: #0d0808;
    border: 2px solid var(--accent);
    color: var(--text-light);
    font-family: inherit;
    font-size: 16px;
    outline: none;
    border-radius: 2px;
}
.login-fields input:focus {
    border-color: var(--accent-bright);
    box-shadow: 0 0 10px rgba(100,100,100,0.3);
}
.login-fields input::placeholder {
    color: #666;
    font-size: 14px;
}

.login-error {
    color: var(--text-accent);
    font-size: 13px;
    min-height: 24px;
    margin-top: 14px;
}

.btn-primary {
    width: 100%;
    padding: 16px;
    margin-top: 24px;
    background: #666;
    border: none;
    color: #fff;
    font-family: inherit;
    font-size: 17px;
    font-weight: bold;
    letter-spacing: 4px;
    cursor: pointer;
    border-radius: 3px;
    text-transform: uppercase;
}
.btn-primary:hover {
    background: #888;
}
.btn-primary:active {
    background: #555;
}
.btn-primary:disabled {
    opacity: 0.5;
    cursor: default;
}

.btn-secondary {
    width: 100%;
    padding: 12px;
    margin-top: 12px;
    background: transparent;
    border: 1px solid var(--accent);
    color: var(--text-accent);
    font-family: inherit;
    font-size: 13px;
    letter-spacing: 2px;
    cursor: pointer;
    border-radius: 3px;
}
.btn-secondary:hover {
    background: rgba(100,100,100,0.1);
}

/* === SCREEN 2: ROOMS === */
#screen-rooms {
    background: #1a1510 url('img/corridor-bg.png?v=17') center/cover no-repeat;
    filter: brightness(0.9);
}
#screen-rooms::after {
    content: '';
    position: absolute;
    inset: 0;
    background: rgba(0,0,0,0.05);
    pointer-events: none;
    z-index: 0;
}
.rooms-layout {
    display: flex;
    width: 100%;
    height: 100%;
    position: relative;
    z-index: 1;
}
.rooms-sidebar {
    width: 320px;
    background: rgba(12,12,12,0.80);
    border-right: 1px solid var(--accent);
    padding: 16px;
    overflow-y: auto;
}
.rooms-main {
    flex: 1;
    display: flex;
    align-items: center;
    justify-content: center;
}
.rooms-bg-text {
    font-size: 48px;
    color: rgba(100,100,100,0.15);
    letter-spacing: 12px;
    text-transform: uppercase;
}
.rooms-search {
    margin-bottom: 12px;
}
.rooms-search input {
    width: 100%;
    padding: 9px 12px;
    background: #0d0808;
    border: 1px solid var(--accent);
    color: var(--text-light);
    font-family: inherit;
    font-size: 13px;
    line-height: 1.5;
    border-radius: 2px;
    outline: none;
    box-sizing: border-box;
}
.rooms-search input:focus {
    border-color: var(--accent-bright);
    box-shadow: 0 0 8px rgba(100,100,100,0.3);
}
.rooms-stamps {
    display: flex;
    gap: 6px;
    margin: 12px 0;
}
.stamp {
    padding: 6px 14px;
    background: rgba(30,30,30,0.85);
    border: 1px solid var(--accent);
    color: var(--text-accent);
    font-family: inherit;
    font-size: 11px;
    letter-spacing: 1px;
    cursor: pointer;
    text-transform: uppercase;
    border-radius: 2px;
}
.stamp:hover { background: rgba(50,50,50,0.9); border-color: var(--accent-bright); color: var(--text-light); }
.stamp.active { background: rgba(60,60,60,0.5); border-color: var(--accent-bright); color: var(--text-light); }

.rooms-title {
    font-size: 14px;
    color: var(--text-accent);
    letter-spacing: 3px;
    border-bottom: 1px solid #444;
    padding-bottom: 8px;
    margin-bottom: 12px;
}
.room-item {
    display: flex;
    align-items: center;
    padding: 10px 0;
    cursor: pointer;
    border-bottom: 1px solid #333;
    gap: 10px;
}
.room-item:hover { background: rgba(80,80,80,0.1); }
.room-icon {
    width: 32px; height: 32px;
    background: #333;
    border: 2px solid var(--accent);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 16px;
    font-weight: bold;
    color: var(--accent);
    flex-shrink: 0;
    border-radius: 2px;
}
.room-name { flex: 1; font-size: 14px; }
.room-badge {
    background: var(--accent);
    color: #fff;
    padding: 2px 8px;
    font-size: 11px;
    border-radius: 2px;
}

.btn-add-room {
    width: 100%;
    padding: 10px;
    margin-top: 8px;
    background: rgba(80,80,80,0.3);
    border: 1px solid var(--accent-bright);
    color: var(--accent-bright);
    font-family: inherit;
    font-size: 12px;
    letter-spacing: 2px;
    cursor: pointer;
    border-radius: 2px;
}
.btn-add-room:hover { background: rgba(80,80,80,0.3); }

/* === SCREEN 3: ANKETA === */
#screen-anketa {
    background: #0a0505 url('img/tower-bg.png') center/cover no-repeat;
}
#screen-anketa::after {
    content: '';
    position: absolute;
    inset: 0;
    background: rgba(0,0,0,0.5);
    pointer-events: none;
}
.anketa-wrapper {
    display: flex;
    flex-direction: column;
    width: 100%; height: 100%;
    position: relative;
    z-index: 1;
}
.btn-back {
    padding: 8px 20px;
    background: transparent;
    border: 1px solid var(--accent);
    color: var(--text-accent);
    font-family: inherit;
    font-size: 13px;
    cursor: pointer;
    margin: 12px;
    align-self: flex-start;
    letter-spacing: 2px;
}
.btn-back:hover { background: rgba(80,80,80,0.15); }
.anketa-frame { flex: 1; width: 100%; border: none; }

.btn-back-mobile {
    padding: 4px 10px;
    background: transparent;
    border: 1px solid var(--accent);
    color: var(--text-accent);
    font-family: inherit;
    font-size: 12px;
    cursor: pointer;
    letter-spacing: 1px;
    margin-right: 8px;
    border-radius: 2px;
}

.btn-back-desktop {
    display: block;
    width: 100%;
    padding: 8px 12px;
    margin-bottom: 10px;
    background: rgba(80,80,80,0.3);
    border: 1px solid var(--accent);
    color: var(--text-accent);
    font-family: inherit;
    font-size: 12px;
    letter-spacing: 2px;
    cursor: pointer;
    border-radius: 2px;
    text-align: center;
}
.btn-back-desktop:hover { background: rgba(80,80,80,0.4); }

/* === SCREEN 4: CHAT === */
#screen-chat {
    background: #1a1510 url('img/cell-bg.png?v=19') center/cover no-repeat;
}
#screen-chat::after {
    content: '';
    position: absolute;
    inset: 0;
    background: rgba(0,0,0,0.5);
    pointer-events: none;
}
.chat-layout { display: flex; flex: 1; min-height: 0; overflow: hidden; width: 100%; position: relative; z-index: 1; }
.chat-sidebar {
    width: 280px;
    background: rgba(20,12,8,0.95);
    border-right: 1px solid var(--accent);
    padding: 16px;
    overflow-y: auto;
}
.chat-main {
    flex: 1;
    display: flex;
    flex-direction: column;
    position: relative;
    min-height: 0;       /* critical: allow flex shrink */
    overflow: hidden;    /* critical: contain children */
}
.chat-header {
    flex-shrink: 0;      /* critical: never shrink header */
    padding: 12px 16px;
    background: rgba(20,12,8,0.95);
    border-bottom: 1px solid var(--accent);
    font-size: 16px;
    font-weight: bold;
    letter-spacing: 2px;
    display: flex;
    align-items: center;
    gap: 12px;
}
.chat-room-name-click {
    cursor: pointer;
    border-bottom: 1px dashed var(--accent);
}
.chat-room-name-click:hover {
    color: var(--accent-bright);
}
.chat-messages {
    flex: 1;
    min-height: 0;                    /* critical: allow flex shrink */
    overflow-y: auto;
    -webkit-overflow-scrolling: touch; /* smooth iOS scroll */
    padding: 16px;
}
.chat-msg {
    padding: 6px 0;
    font-size: 14px;
    line-height: 1.5;
    border-bottom: 1px solid #333;
    position: relative;
}
.chat-msg:hover .chat-msg-actions {
    opacity: 1;
}
.chat-msg b { color: var(--text-accent); }
.chat-msg.notice { color: #999; font-size: 13px; }
.chat-msg-redacted { color: #777; font-style: italic; font-size: 12px; }
.chat-msg-own { background: rgba(30,20,10,0.3); }

.chat-msg-sender {
    display: block;
    margin-bottom: 2px;
}

.chat-ts {
    font-size: 10px;
    color: #777;
    margin-left: 6px;
    font-weight: normal;
}

.chat-msg-body {
    display: block;
    word-break: break-word;
}

.chat-msg-actions {
    position: absolute;
    right: 4px;
    top: 4px;
    display: flex;
    gap: 4px;
    opacity: 0;
    transition: opacity 0.15s;
}
.chat-msg-action {
    background: rgba(10,6,3,0.85);
    border: 1px solid #444;
    color: var(--text-light);
    width: 24px;
    height: 24px;
    font-size: 12px;
    cursor: pointer;
    border-radius: 2px;
    display: flex;
    align-items: center;
    justify-content: center;
}
.chat-msg-action:hover { background: rgba(60,60,60,0.8); }
.chat-msg-delete:hover { background: rgba(120,120,120,0.7); border-color: var(--accent); }
.chat-msg-reply:hover { background: rgba(80,80,80,0.7); border-color: var(--accent); }

/* Reply reference in message */
.chat-reply-ref {
    font-size: 11px;
    color: #999;
    border-left: 2px solid var(--accent);
    padding-left: 8px;
    margin: 2px 0;
    display: block;
}

/* Typing indicator */
.chat-typing-indicator {
    padding: 4px 16px;
    font-size: 11px;
    color: #999;
    font-style: italic;
    display: none;
}
.chat-typing-badge {
    font-size: 11px;
    color: var(--accent);
}

/* Reply bar */
.chat-reply-bar {
    display: flex;
    align-items: center;
    padding: 6px 12px;
    background: #1a1410;
    border-top: 1px solid var(--accent);
    gap: 8px;
}
.chat-reply-text {
    flex: 1;
    font-size: 12px;
    color: #999;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}
.chat-reply-close {
    background: transparent;
    border: none;
    color: var(--text-accent);
    cursor: pointer;
    font-size: 14px;
    padding: 2px 6px;
}

/* Chat input */
.chat-input {
    flex-shrink: 0;      /* critical: never shrink input bar */
    display: flex;
    gap: 6px;
    padding: 10px 12px;
    background: rgba(20,12,8,0.95);
    border-top: 1px solid var(--accent);
}
.chat-input input[type="text"] {
    flex: 1;
    padding: 10px 12px;
    background: #0d0808;
    border: 1px solid #444;
    color: var(--text-light);
    font-family: inherit;
    font-size: 14px;
    border-radius: 2px;
    outline: none;
}
.chat-btn {
    width: 40px; height: 40px;
    background: #1a1410;
    border: 1px solid var(--accent);
    color: var(--text-light);
    font-size: 16px;
    cursor: pointer;
    border-radius: 2px;
    display: flex;
    align-items: center;
    justify-content: center;
}
.chat-btn:hover { background: #333; }

/* Emoji picker */
.chat-emoji-picker {
    display: flex;
    flex-wrap: wrap;
    gap: 4px;
    padding: 8px 12px;
    background: #1a1410;
    border-top: 1px solid #3a2a1a;
    max-height: 160px;
    overflow-y: auto;
}
.emoji-item {
    font-size: 24px;
    cursor: pointer;
    padding: 4px;
    border-radius: 4px;
    line-height: 1;
}
.emoji-item:hover {
    background: #333;
}

/* === MODAL (via ui.js) === */
.gulag-modal-overlay {
    position: fixed;
    inset: 0;
    background: rgba(0,0,0,0.7);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 1000;
}
.gulag-modal {
    background: rgba(20,12,8,0.98);
    border: 1px solid var(--accent);
    border-radius: 4px;
    padding: 28px 32px;
    width: 400px;
    max-width: 90vw;
    box-shadow: 0 0 60px rgba(0,0,0,0.8);
}
.gulag-modal-title {
    font-size: 16px;
    color: var(--accent-bright);
    letter-spacing: 3px;
    border-bottom: 1px solid #444;
    padding-bottom: 12px;
    margin-bottom: 16px;
    text-align: center;
}
.gulag-modal-body {
    margin-bottom: 20px;
}
.gulag-modal-input {
    width: 100%;
    padding: 12px 14px;
    background: #0d0808;
    border: 1px solid #444;
    color: var(--text-light);
    font-family: inherit;
    font-size: 14px;
    border-radius: 2px;
    outline: none;
}
.gulag-modal-input:focus {
    border-color: var(--accent);
}
.gulag-modal-buttons {
    display: flex;
    gap: 10px;
    justify-content: flex-end;
}
.gulag-modal-btn {
    padding: 10px 20px;
    font-family: inherit;
    font-size: 13px;
    letter-spacing: 2px;
    cursor: pointer;
    border-radius: 2px;
    border: 1px solid var(--accent);
    background: transparent;
    color: var(--text-light);
}
.gulag-modal-btn:hover { background: rgba(80,80,80,0.15); }
.gulag-modal-btn.primary {
    background: #666;
    color: #fff;
    border-color: var(--accent-bright);
}
.gulag-modal-btn.primary:hover { background: #888; }
.gulag-modal-btn.danger {
    background: var(--danger);
    color: #fff;
    border-color: #777;
}
.gulag-modal-btn.danger:hover { background: #888; }
.gulag-modal-btn.secondary {
    border-color: #444;
    color: #999;
}

/* === TOAST === */
.gulag-toast {
    position: fixed;
    bottom: 80px;
    left: 50%;
    transform: translateX(-50%) translateY(20px);
    background: rgba(20,12,8,0.95);
    border: 1px solid var(--accent);
    color: var(--text-light);
    padding: 12px 24px;
    font-size: 13px;
    letter-spacing: 1px;
    z-index: 2000;
    opacity: 0;
    transition: opacity 0.3s, transform 0.3s;
    pointer-events: none;
    white-space: nowrap;
}
.gulag-toast.show {
    opacity: 1;
    transform: translateX(-50%) translateY(0);
}

/* === CONTEXT MENU === */
.gulag-context-menu {
    position: fixed;
    background: rgba(20,12,8,0.98);
    border: 1px solid var(--accent);
    border-radius: 3px;
    z-index: 2000;
    min-width: 180px;
    box-shadow: 0 4px 20px rgba(0,0,0,0.7);
}
.gulag-context-item {
    padding: 10px 16px;
    font-size: 13px;
    letter-spacing: 1px;
    cursor: pointer;
    border-bottom: 1px solid #333;
    color: var(--text-light);
}
.gulag-context-item:last-child { border-bottom: none; }
.gulag-context-item:hover { background: rgba(80,80,80,0.2); }
.gulag-context-item.danger { color: var(--accent-bright); }
.gulag-context-item.danger:hover { background: rgba(80,80,80,0.3); }

/* === MEMBER LIST === */
.gulag-member-list {
    max-height: 300px;
    overflow-y: auto;
}
.gulag-member-item {
    padding: 8px 4px;
    border-bottom: 1px solid #333;
    font-size: 14px;
}
.gulag-member-item:last-child { border-bottom: none; }
.gulag-member-id {
    color: #777;
    font-size: 11px;
    margin-left: 8px;
}

/* Image preview */
.chat-img-preview {
    max-width: 300px;
    max-height: 200px;
    border: 1px solid #444;
    border-radius: 2px;
    margin: 4px 0;
    cursor: pointer;
}
.chat-img-preview:hover { opacity: 0.85; }

/* File link */
.chat-file-link {
    color: var(--accent);
    text-decoration: none;
    font-size: 13px;
}
.chat-file-link:hover {
    color: var(--accent-bright);
    text-decoration: underline;
}

/* === MOBILE (max-width: 768px) === */
@media (max-width: 768px) {
    body { padding: env(safe-area-inset-top) 0 env(safe-area-inset-bottom) 0; }
    .login-card { width: 92vw; padding: 32px 24px; }
    .login-header h1 { font-size: 26px; letter-spacing: 3px; }
    .btn-primary { font-size: 15px; padding: 14px; }
    
    .rooms-layout { flex-direction: column; }
    .rooms-sidebar { width: 100%; height: 100%; border-right: none; border-bottom: 1px solid var(--accent); }
    .rooms-main { display: none; }
    
    .chat-layout { flex-direction: column; }
    .chat-sidebar { display: none; }
    .chat-main { flex: 1; min-height: 0; }
    .chat-header { flex-shrink: 0; font-size: 14px; padding: 10px 12px; }
    .chat-messages { flex: 1; min-height: 0; overflow-y: auto; -webkit-overflow-scrolling: touch; padding: 10px; font-size: 13px; }
    .chat-input { flex-shrink: 0; padding: 8px 10px; padding-bottom: calc(8px + env(safe-area-inset-bottom)); }
    .chat-input input[type="text"] { font-size: 16px; }
    .chat-btn { width: 36px; height: 36px; }
    
    .btn-back-mobile { display: inline-block; }
    
    .gulag-modal { width: 95vw; padding: 20px 16px; }
    .chat-img-preview { max-width: 200px; max-height: 150px; }
}
@media (min-width: 769px) {
    .btn-back-mobile { display: none; }
    .btn-back-desktop { display: block; }
}

/* === MOBILE SMALL (max-width: 400px) === */
@media (max-width: 400px) {
    .login-header h1 { font-size: 22px; }
    .rooms-sidebar { height: 100%; }
    .room-item { padding: 8px 6px; }
    .room-icon { width: 26px; height: 26px; font-size: 13px; }
    .room-badge { font-size: 10px; padding: 1px 6px; }
}

.room-item.active { background: rgba(80,80,80,0.2); }

.btn-logout {
    width: 100%;
    padding: 10px;
    margin-top: 16px;
    background: transparent;
    border: 1px solid var(--accent);
    color: var(--text-accent);
    font-family: inherit;
    font-size: 12px;
    letter-spacing: 2px;
    cursor: pointer;
}
.btn-logout:hover { background: rgba(139,32,32,0.15); }

/* === CALL BUTTON === */
.call-btn {
    margin-left: auto;
    width: 36px;
    height: 36px;
    background: rgba(30,20,10,0.9);
    border: 1px solid var(--accent-bright);
    color: var(--accent-bright);
    font-size: 16px;
    cursor: pointer;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    transition: background 0.2s, box-shadow 0.2s;
}
.call-btn:hover {
    background: rgba(139,32,32,0.4);
    box-shadow: 0 0 12px rgba(200,30,30,0.4);
}
.call-btn:active {
    transform: scale(0.95);
}

/* === JITSI MODAL === */
.jitsi-modal {
    display: none;
    position: fixed;
    inset: 0;
    background: #000;
    z-index: 3000;
    flex-direction: column;
}
.jitsi-modal-header {
    display: flex;
    align-items: center;
    padding: 8px 16px;
    background: #1a1410;
    border-bottom: 1px solid var(--accent);
    z-index: 3001;
}
.jitsi-modal-header span {
    flex: 1;
    font-size: 14px;
    font-weight: bold;
    letter-spacing: 2px;
    color: var(--text-light);
}
.jitsi-close-btn {
    width: 36px;
    height: 36px;
    background: transparent;
    border: 1px solid var(--accent-bright);
    color: var(--accent-bright);
    font-size: 16px;
    cursor: pointer;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
}
.jitsi-close-btn:hover {
    background: rgba(139,32,32,0.3);
}
.jitsi-iframe-wrap {
    flex: 1;
    position: relative;
}
.jitsi-iframe-wrap iframe {
    width: 100%;
    height: 100%;
    border: none;
}
.jitsi-controls {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 16px;
    padding: 12px 16px;
    padding-bottom: calc(12px + env(safe-area-inset-bottom));
    background: #1a1410;
    border-top: 1px solid var(--accent);
}
.jitsi-ctrl-btn {
    width: 44px;
    height: 44px;
    background: rgba(30,20,10,0.9);
    border: 1px solid var(--accent);
    color: var(--text-light);
    font-size: 18px;
    cursor: pointer;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: background 0.2s;
}
.jitsi-ctrl-btn:hover {
    background: rgba(60,40,20,0.8);
}
.jitsi-hangup-btn {
    padding: 10px 24px;
    background: #cc0000;
    border: none;
    color: #fff;
    font-family: inherit;
    font-size: 14px;
    font-weight: bold;
    letter-spacing: 2px;
    cursor: pointer;
    border-radius: 24px;
    display: flex;
    align-items: center;
    gap: 6px;
    transition: background 0.2s;
}
.jitsi-hangup-btn:hover {
    background: #dd2222;
}
.jitsi-hangup-btn:active {
    background: #aa0000;
}

.rooms-loading, .rooms-error, .rooms-empty, .chat-error {
    padding: 20px;
    text-align: center;
    color: #887766;
    font-size: 13px;
}
.rooms-error, .chat-error { color: var(--accent-bright); }