/* ==========================================================================
   LIQUID GLASS THEME (DARK & LIGHT MODE)
   ========================================================================== */

:root {
    --bg-main: #060c0a;
    --text-primary: #f1f5f9;
    --text-muted: #94a3b8;
    --glass-bg: rgba(12, 24, 19, 0.65);
    --glass-border: rgba(52, 211, 153, 0.18);
    --glass-border-glow: rgba(52, 211, 153, 0.45);
    --glass-card-bg: rgba(18, 36, 29, 0.5);
    --glass-input-bg: rgba(5, 14, 10, 0.65);
    --glass-header-bg: rgba(9, 19, 15, 0.45);
    --emerald-glow: rgba(16, 185, 129, 0.25);
    
    --blob-1: radial-gradient(circle, #059669 0%, #047857 60%, transparent 100%);
    --blob-2: radial-gradient(circle, #10b981 0%, #064e3b 70%, transparent 100%);
    --blob-3: radial-gradient(circle, #34d399 0%, #14b8a6 60%, transparent 100%);
    --wave-bg: radial-gradient(ellipse at center, rgba(16, 185, 129, 0.08) 0%, transparent 70%);
}

/* ==========================================================================
   СВЕТЛАЯ ТЕМА В СТИЛЕ СБЕРБАНКА (SBER MINT LIGHT THEME)
   ========================================================================== */
html.light {
    --bg-main: #f3f6f4;
    --text-primary: #0f172a;
    --text-muted: #64748b;
    --glass-bg: rgba(255, 255, 255, 0.82);
    --glass-border: rgba(33, 160, 56, 0.2);
    --glass-border-glow: rgba(40, 200, 83, 0.4);
    --glass-card-bg: rgba(255, 255, 255, 0.92);
    --glass-input-bg: #ffffff;
    --glass-header-bg: rgba(255, 255, 255, 0.88);
    --emerald-glow: rgba(40, 200, 83, 0.25);

    --blob-1: radial-gradient(circle, rgba(40, 200, 83, 0.35) 0%, rgba(33, 160, 56, 0.12) 60%, transparent 100%);
    --blob-2: radial-gradient(circle, rgba(33, 160, 56, 0.25) 0%, rgba(16, 185, 129, 0.1) 70%, transparent 100%);
    --blob-3: radial-gradient(circle, rgba(210, 248, 220, 0.6) 0%, rgba(40, 200, 83, 0.18) 60%, transparent 100%);
    --wave-bg: radial-gradient(ellipse at center, rgba(40, 200, 83, 0.12) 0%, transparent 70%);
}

/* Аватар бота в стиле Сбера */
.bot-avatar-bg {
    background: linear-gradient(135deg, #34d399 0%, #059669 100%);
    color: #022c22;
    box-shadow: 0 4px 12px rgba(16, 185, 129, 0.3);
}

html.light .bot-avatar-bg {
    background: #e2f7e8;
    color: #21a038;
    box-shadow: 0 4px 12px rgba(33, 160, 56, 0.18);
}

/* Зеленая кнопка в стиле Сбербанка */
html.light .glass-button-primary {
    background: linear-gradient(135deg, #28c853 0%, #1fa843 100%);
    color: #ffffff !important;
    font-weight: 600;
    border: 1px solid rgba(33, 160, 56, 0.3);
    box-shadow: 0 4px 15px rgba(40, 200, 83, 0.3);
}

html.light .glass-button-primary:hover:not(:disabled) {
    background: linear-gradient(135deg, #2ed95c 0%, #21b84a 100%);
    box-shadow: 0 6px 20px rgba(40, 200, 83, 0.42);
}

html.light .text-emerald-400 {
    color: #21a038 !important;
}

body.bg-liquid-theme {
    background-color: var(--bg-main);
    color: var(--text-primary);
    font-family: system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
}

.text-theme { color: var(--text-primary); }
.text-muted { color: var(--text-muted); }
.border-theme { border-color: var(--glass-border); }

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

.liquid-blob {
    position: absolute;
    border-radius: 50%;
    filter: blur(85px);
    opacity: 0.65;
    animation: floatBlob 20s infinite ease-in-out alternate;
}

.blob-1 {
    width: 550px;
    height: 550px;
    background: var(--blob-1);
    top: -100px;
    left: -100px;
}

.blob-2 {
    width: 600px;
    height: 600px;
    background: var(--blob-2);
    bottom: -150px;
    right: -100px;
    animation-delay: -7s;
}

.blob-3 {
    width: 450px;
    height: 450px;
    background: var(--blob-3);
    top: 35%;
    left: 30%;
    opacity: 0.45;
    animation-delay: -14s;
}

.liquid-lines-wave {
    position: absolute;
    width: 200%;
    height: 200%;
    top: -50%;
    left: -50%;
    background: var(--wave-bg);
    border-radius: 40%;
    animation: rotateWave 28s infinite linear;
}

@keyframes floatBlob {
    0% { transform: translate(0, 0) scale(1); }
    50% { transform: translate(50px, 30px) scale(1.08); }
    100% { transform: translate(-30px, 60px) scale(0.95); }
}

@keyframes rotateWave {
    from { transform: rotate(0deg); }
    to { transform: rotate(360deg); }
}

/* --------------------------------------------------------------------------
   БЕЗУПРЕЧНО ПЛАВНАЯ GRID-АНИМАЦИЯ ВЫДВИЖЕНИЯ ПАНЕЛИ И ЧАТА
   -------------------------------------------------------------------------- */

#main-container {
    grid-template-columns: 0px 1fr;
    gap: 0px;
    transition: grid-template-columns 0.45s cubic-bezier(0.16, 1, 0.3, 1),
                gap 0.45s cubic-bezier(0.16, 1, 0.3, 1);
}

#main-container.sidebar-is-open {
    grid-template-columns: 320px 1fr;
    gap: 16px;
}

#sidebar {
    overflow: hidden;
    opacity: 0;
    transform: translateX(-15px);
    transition: opacity 0.35s ease,
                transform 0.45s cubic-bezier(0.16, 1, 0.3, 1),
                border-color 0.45s ease;
    pointer-events: none;
}

#main-container.sidebar-is-open #sidebar {
    opacity: 1;
    transform: translateX(0);
    pointer-events: auto;
}

#sidebar-toggle {
    transition: opacity 0.35s ease,
                transform 0.35s cubic-bezier(0.16, 1, 0.3, 1),
                background 0.2s ease,
                border-color 0.2s ease,
                box-shadow 0.2s ease;
}

#sidebar-toggle.toggle-hidden {
    opacity: 0 !important;
    pointer-events: none !important;
    transform: translateX(-20px) scale(0.92);
}

/* Liquid Glass Cards & Panels */
.glass-panel {
    background: var(--glass-bg);
    backdrop-filter: blur(20px) saturate(170%);
    -webkit-backdrop-filter: blur(20px) saturate(170%);
    border: 1px solid var(--glass-border);
    border-radius: 1.25rem;
    box-shadow: 
        inset 0 1px 1px 0 rgba(255, 255, 255, 0.1),
        0 15px 35px rgba(0, 0, 0, 0.08);
    transition: background 0.3s ease, border-color 0.3s ease;
}

.glass-card {
    background: var(--glass-card-bg);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border: 1px solid var(--glass-border);
    box-shadow: inset 0 1px 0 0 rgba(255, 255, 255, 0.2);
    transition: background 0.3s ease, border-color 0.3s ease;
    overflow-wrap: break-word;
    word-break: break-word;
}

.glass-header, .glass-footer {
    background: var(--glass-header-bg);
    backdrop-filter: blur(10px);
}

/* Inputs & Buttons */
.glass-input {
    background: var(--glass-input-bg);
    border: 1px solid var(--glass-border);
    border-radius: 0.75rem;
    color: var(--text-primary);
    transition: border-color 0.25s ease, box-shadow 0.25s ease;
}

.glass-input:focus {
    border-color: var(--glass-border-glow);
    box-shadow: 0 0 15px var(--emerald-glow);
}

.glass-button {
    background: var(--glass-card-bg);
    border: 1px solid var(--glass-border);
    color: var(--text-primary);
    transition: all 0.2s ease;
}

.glass-button:hover {
    border-color: rgba(40, 200, 83, 0.5);
    box-shadow: 0 0 12px var(--emerald-glow);
}

.glass-button-primary {
    background: linear-gradient(135deg, #10b981 0%, #059669 100%);
    color: #ffffff;
    font-weight: 600;
    border: 1px solid rgba(110, 231, 183, 0.4);
    box-shadow: 0 4px 15px rgba(16, 185, 129, 0.3);
    transition: background 0.25s ease, box-shadow 0.25s ease;
}

.glass-button-primary:hover:not(:disabled) {
    background: linear-gradient(135deg, #34d399 0%, #10b981 100%);
    box-shadow: 0 6px 20px rgba(16, 185, 129, 0.45);
}

.glass-button-primary:disabled {
    opacity: 0.85;
    cursor: not-allowed;
}

.glass-button-danger {
    background: rgba(239, 68, 68, 0.15);
    border: 1px solid rgba(239, 68, 68, 0.3);
    color: #f87171;
}

.glass-button-danger:hover {
    background: rgba(239, 68, 68, 0.3);
}

/* Исключение браузерного дёргания скролла */
#chat-box {
    overflow-anchor: none;
}

.message-appear {
    will-change: transform, opacity;
    animation: slideUpSoft 0.35s ease-out forwards;
}

@keyframes slideUpSoft {
    0% {
        opacity: 0;
        transform: translateY(10px);
    }
    100% {
        opacity: 1;
        transform: translateY(0);
    }
}

.word-reveal {
    display: inline;
    opacity: 0;
    animation: wordFadeIn 0.2s cubic-bezier(0, 0, 0.2, 1) forwards;
}

@keyframes wordFadeIn {
    0% { opacity: 0; }
    100% { opacity: 1; }
}

.custom-scrollbar::-webkit-scrollbar {
    width: 5px;
}

.custom-scrollbar::-webkit-scrollbar-track {
    background: transparent;
}

.custom-scrollbar::-webkit-scrollbar-thumb {
    background: rgba(40, 200, 83, 0.3);
    border-radius: 10px;
}

.custom-scrollbar::-webkit-scrollbar-thumb:hover {
    background: rgba(40, 200, 83, 0.5);
}

/* Базовые стили сообщений пользователя (Dark Mode) */
.user-msg-bubble {
    background: linear-gradient(135deg, #059669 0%, #047857 100%);
    color: #ffffff;
    box-shadow: 0 4px 15px rgba(16, 185, 129, 0.2);
}

.user-avatar-bg {
    background: #059669;
    color: #022c22;
    box-shadow: 0 4px 12px rgba(16, 185, 129, 0.3);
}

/* Стили в светлой теме (совпадают с .glass-button-primary) */
html.light .user-msg-bubble {
    background: linear-gradient(135deg, #28c853 0%, #1fa843 100%);
    border: 1px solid rgba(33, 160, 56, 0.3);
    box-shadow: 0 4px 15px rgba(40, 200, 83, 0.3);
    color: #ffffff;
}

html.light .user-avatar-bg {
    background: linear-gradient(135deg, #28c853 0%, #1fa843 100%);
    color: #ffffff;
    box-shadow: 0 4px 12px rgba(40, 200, 83, 0.25);
}

/* ==========================================================================
   ПРОГРЕСС-БАРЫ (DARK & LIGHT СТИЛИ + АНИМАЦИЯ)
   ========================================================================== */

/* Трек шкалы (Dark Mode) */
.progress-track {
    background: rgba(5, 14, 10, 0.75);
    border: 1px solid rgba(52, 211, 153, 0.15);
    box-shadow: inset 0 1px 3px rgba(0, 0, 0, 0.5);
    border-radius: 9999px;
    height: 7px;
    overflow: hidden;
    position: relative;
}

/* Заполнение полосы (Dark Mode) */
.progress-fill {
    height: 100%;
    border-radius: 9999px;
    background: linear-gradient(90deg, #059669 0%, #10b981 50%, #34d399 100%);
    box-shadow: 0 0 10px rgba(16, 185, 129, 0.45);
    transition: width 0.8s cubic-bezier(0.2, 0.8, 0.2, 1);
}

/* Вспышка-блик при увеличении прогресса */
.progress-fill.updated {
    animation: progressFlashDark 0.9s ease-out;
}

@keyframes progressFlashDark {
    0% { filter: brightness(1); }
    35% { filter: brightness(1.75); box-shadow: 0 0 16px rgba(52, 211, 153, 0.9); }
    100% { filter: brightness(1); }
}

/* Трек шкалы (Light Mode — стиль Сбербанка) */
html.light .progress-track {
    background: #e3eae5;
    border: 1px solid rgba(33, 160, 56, 0.2);
    box-shadow: inset 0 1px 2px rgba(0, 0, 0, 0.08);
}

/* Заполнение полосы (Light Mode) */
html.light .progress-fill {
    background: linear-gradient(90deg, #1fa843 0%, #28c853 100%);
    box-shadow: 0 2px 8px rgba(40, 200, 83, 0.35);
}

html.light .progress-fill.updated {
    animation: progressFlashLight 0.9s ease-out;
}

@keyframes progressFlashLight {
    0% { filter: brightness(1); }
    35% { filter: brightness(1.35); box-shadow: 0 0 14px rgba(40, 200, 83, 0.8); }
    100% { filter: brightness(1); }
}


/* ==========================================================================
   АДАПТАЦИЯ МОДАЛЬНОГО ОКНА И АВТОРИЗАЦИИ ДЛЯ СВЕТЛОЙ ТЕМЫ
   ========================================================================== */

/* Подложка вкладок «Вход / Регистрация» */
.auth-tabs-nav {
    display: flex;
    border-radius: 0.75rem;
    background: rgba(15, 23, 42, 0.65);
    padding: 0.25rem;
    border: 1px solid var(--glass-border);
}

html.light .auth-tabs-nav {
    background: #e8eee9;
    border-color: rgba(33, 160, 56, 0.18);
}

/* Кнопки вкладок */
.auth-tab {
    flex: 1;
    padding: 0.5rem 0;
    border-radius: 0.5rem;
    font-size: 0.75rem;
    font-weight: 600;
    transition: all 0.2s ease;
    color: var(--text-muted);
}

.auth-tab.active {
    background: rgba(16, 185, 129, 0.2);
    color: #34d399;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.2);
}

html.light .auth-tab.active {
    background: #ffffff;
    color: #1fa843;
    box-shadow: 0 2px 6px rgba(0, 0, 0, 0.08);
}

/* Ошибки аутентификации */
.auth-error-box {
    font-size: 0.75rem;
    padding: 0.65rem;
    border-radius: 0.75rem;
    background: rgba(239, 68, 68, 0.12);
    border: 1px solid rgba(239, 68, 68, 0.25);
    color: #f87171;
}

html.light .auth-error-box {
    background: #fef2f2;
    border-color: #fecaca;
    color: #dc2626;
}

/* Выпадающие списки (select option) */
.glass-input option {
    background-color: #0b1511;
    color: #f1f5f9;
}

html.light .glass-input option {
    background-color: #ffffff;
    color: #0f172a;
}

/* Кнопка сброса (Danger) в светлой теме */
html.light .glass-button-danger {
    background: #fee2e2;
    border: 1px solid rgba(239, 68, 68, 0.3);
    color: #dc2626;
}

html.light .glass-button-danger:hover {
    background: #fca5a5;
    color: #991b1b;
}

/* Плейсхолдеры в светлой теме */
html.light .glass-input::placeholder {
    color: #94a3b8;
}

/* Кнопки переключения режима аутентификации */
.auth-btn {
    cursor: pointer;
    background: var(--glass-card-bg);
    border: 1px solid var(--glass-border);
    color: var(--text-muted);
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.15);
    transition: all 0.2s cubic-bezier(0.16, 1, 0.3, 1);
}

.auth-btn:hover:not(.active) {
    border-color: rgba(52, 211, 153, 0.45);
    color: var(--text-primary);
    transform: translateY(-1px);
}

.auth-btn:active {
    transform: scale(0.96);
}

/* Активная кнопка (Dark Mode) */
.auth-btn.active {
    background: linear-gradient(135deg, #10b981 0%, #059669 100%);
    border-color: rgba(110, 231, 183, 0.45);
    color: #ffffff !important;
    box-shadow: 0 4px 14px rgba(16, 185, 129, 0.35);
}

/* Стили кнопок для светлой темы */
html.light .auth-btn {
    background: rgba(255, 255, 255, 0.9);
    border: 1px solid rgba(33, 160, 56, 0.2);
    color: #64748b;
    box-shadow: 0 2px 6px rgba(0, 0, 0, 0.05);
}

html.light .auth-btn:hover:not(.active) {
    border-color: rgba(40, 200, 83, 0.5);
    color: #0f172a;
}

/* Активная кнопка (Light Mode) */
html.light .auth-btn.active {
    background: linear-gradient(135deg, #28c853 0%, #1fa843 100%);
    border-color: rgba(33, 160, 56, 0.35);
    color: #ffffff !important;
    box-shadow: 0 4px 14px rgba(40, 200, 83, 0.32);
}

/* ==========================================================================
   КНОПКИ РЕЖИМА АУТЕНТИФИКАЦИИ (ВХОД / РЕГИСТРАЦИЯ)
   ========================================================================== */

.auth-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    padding: 0.7rem 1rem;
    border-radius: 0.75rem;
    font-size: 0.875rem;
    font-weight: 600;
    cursor: pointer;
    outline: none;
    transition: all 0.2s cubic-bezier(0.16, 1, 0.3, 1);

    /* Неактивное состояние (Dark Mode) */
    background: var(--glass-card-bg);
    border: 1px solid var(--glass-border);
    color: var(--text-muted);
    box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.05);
}

.auth-btn:hover:not(.active) {
    border-color: rgba(52, 211, 153, 0.4);
    color: var(--text-primary);
    transform: translateY(-1px);
}

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

/* Активное состояние (Dark Mode) — стиль glass-button-primary */
.auth-btn.active {
    background: linear-gradient(135deg, #10b981 0%, #059669 100%);
    border: 1px solid rgba(110, 231, 183, 0.4);
    color: #ffffff !important;
    box-shadow: 0 4px 15px rgba(16, 185, 129, 0.35);
}

/* Неактивное состояние (Light Mode) */
html.light .auth-btn {
    background: #ffffff;
    border: 1px solid rgba(33, 160, 56, 0.25);
    color: #64748b;
    box-shadow: 0 2px 6px rgba(0, 0, 0, 0.05);
}

html.light .auth-btn:hover:not(.active) {
    background: #f8faf9;
    border-color: rgba(40, 200, 83, 0.5);
    color: #0f172a;
}

/* Активное состояние (Light Mode) — идентично кнопке "Войти" */
html.light .auth-btn.active {
    background: linear-gradient(135deg, #28c853 0%, #1fa843 100%);
    border: 1px solid rgba(33, 160, 56, 0.3);
    color: #ffffff !important;
    box-shadow: 0 4px 15px rgba(40, 200, 83, 0.3);
}

.auth-btn svg {
    stroke: currentColor;
    flex-shrink: 0;
}