/* ═══════════════════════════════════════════════════════════
   AI Character Chat — Styles
   Premium dark mode with glassmorphism and micro-animations
   ═══════════════════════════════════════════════════════════ */

/* ── CSS Custom Properties ─────────────────────────────── */
:root {
    /* Base palette */
    --bg-primary: #121212;
    --bg-secondary: #191A1F;
    --bg-tertiary: #1E1F26;
    --bg-elevated: #262832;
    --bg-hover: #2E303A;

    /* Accent colors */
    --accent-primary: #A855F7;
    --accent-primary-glow: rgba(168, 85, 247, 0.25);
    --accent-secondary: #EC4899;
    --accent-gradient: linear-gradient(135deg, #9333EA 0%, #EC4899 100%);
    --accent-gradient-hover: linear-gradient(135deg, #A855F7 0%, #F472B6 100%);

    /* Text */
    --text-primary: #E8E6E3;
    --text-secondary: #A3A3AD;
    --text-muted: #6B6C76;
    --text-accent: #A855F7;

    /* Borders */
    --border-color: #2E303A;
    --border-hover: #3A3D49;
    --border-accent: rgba(168, 85, 247, 0.4);

    /* Glass */
    --glass-bg: rgba(25, 26, 31, 0.85);
    --glass-border: rgba(232, 230, 227, 0.08);

    /* Status */
    --success: #34D399;
    --warning: #FBBF24;
    --danger: #F87171;
    --danger-bg: rgba(248, 113, 113, 0.1);

    /* Chat bubbles */
    --bubble-user: linear-gradient(135deg, #9333EA 0%, #EC4899 100%);
    --bubble-assistant: #1E1F26;

    /* Shadows */
    --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.3);
    --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.4);
    --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.5);
    --shadow-glow: 0 0 20px rgba(168, 85, 247, 0.2);

    /* Sizing */
    --sidebar-width: 300px;
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 16px;
    --radius-xl: 20px;

    /* Transitions */
    --transition-fast: 150ms cubic-bezier(0.4, 0, 0.2, 1);
    --transition-normal: 250ms cubic-bezier(0.4, 0, 0.2, 1);
    --transition-slow: 400ms cubic-bezier(0.4, 0, 0.2, 1);
}

/* ── Reset ─────────────────────────────────────────────── */
*,
*::before,
*::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html,
body {
    height: 100%;
    height: 100dvh;
    overflow: hidden;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    background: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* ── App Layout ────────────────────────────────────────── */
#app {
    display: flex;
    height: 100vh;
    height: 100dvh;
    width: 100vw;
    overflow: hidden;
}

/* ═══════════════════════════════════════════════════════════
   SIDEBAR
   ═══════════════════════════════════════════════════════════ */
.sidebar {
    width: var(--sidebar-width);
    min-width: var(--sidebar-width);
    height: 100vh;
    height: 100dvh;
    background: var(--bg-secondary);
    border-right: 1px solid var(--border-color);
    display: flex;
    flex-direction: column;
    overflow: hidden;
    transition: transform var(--transition-normal), margin-left var(--transition-normal);
    z-index: 100;
}

.sidebar-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 16px 18px;
    border-bottom: 1px solid var(--border-color);
}

.logo {
    display: flex;
    align-items: center;
    gap: 10px;
}

.logo-icon {
    font-size: 1.5rem;
    background: var(--accent-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    animation: pulse-glow 3s ease-in-out infinite;
}

@keyframes pulse-glow {

    0%,
    100% {
        filter: brightness(1);
    }

    50% {
        filter: brightness(1.3);
    }
}

.logo-text {
    font-weight: 700;
    font-size: 1.1rem;
    letter-spacing: -0.02em;
}

.btn-new-character {
    margin: 14px 14px 8px;
    padding: 10px 16px;
    background: var(--accent-gradient);
    color: white;
    border: none;
    border-radius: var(--radius-md);
    font-family: inherit;
    font-size: 0.875rem;
    font-weight: 600;
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: 8px;
    justify-content: center;
    transition: all var(--transition-fast);
    box-shadow: var(--shadow-glow);
}

.btn-new-character:hover {
    background: var(--accent-gradient-hover);
    transform: translateY(-1px);
    box-shadow: 0 0 28px rgba(124, 92, 252, 0.35);
}

.sidebar-section-title {
    padding: 12px 18px 6px;
    font-size: 0.7rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--text-muted);
}

/* Character Search */
.sidebar-search {
    position: relative;
    display: flex;
    align-items: center;
    margin: 0 14px 10px;
}

.sidebar-search-icon {
    position: absolute;
    left: 11px;
    color: var(--text-muted);
    pointer-events: none;
    flex-shrink: 0;
}

.sidebar-search-input {
    width: 100%;
    padding: 9px 32px 9px 32px;
    background: var(--bg-tertiary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    color: var(--text-primary);
    font-family: inherit;
    font-size: 0.82rem;
    outline: none;
    transition: all var(--transition-fast);
}

.sidebar-search-input::placeholder {
    color: var(--text-muted);
}

.sidebar-search-input:focus {
    border-color: var(--accent-primary);
    box-shadow: 0 0 0 3px var(--accent-primary-glow);
}

.sidebar-search-clear {
    position: absolute;
    right: 6px;
    width: 22px;
    height: 22px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: transparent;
    border: none;
    border-radius: 50%;
    color: var(--text-muted);
    cursor: pointer;
    transition: all var(--transition-fast);
}

.sidebar-search-clear:hover {
    background: var(--bg-hover);
    color: var(--text-primary);
}

.character-list,
.chat-list {
    flex: 1;
    overflow-y: auto;
    padding: 4px 8px;
    scrollbar-width: thin;
    scrollbar-color: var(--bg-hover) transparent;
}

.character-list::-webkit-scrollbar,
.chat-list::-webkit-scrollbar {
    width: 4px;
}

.character-list::-webkit-scrollbar-thumb,
.chat-list::-webkit-scrollbar-thumb {
    background: var(--bg-hover);
    border-radius: 4px;
}

/* Character Item */
.character-item {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 10px 12px;
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: all var(--transition-fast);
    border: 1px solid transparent;
    margin-bottom: 2px;
}

.character-item:hover {
    background: var(--bg-hover);
    border-color: var(--border-hover);
}

.character-item.active {
    background: var(--accent-primary-glow);
    border-color: var(--border-accent);
}

.character-item-avatar {
    width: 38px;
    height: 38px;
    border-radius: 50%;
    background: var(--bg-tertiary);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.2rem;
    flex-shrink: 0;
    border: 2px solid var(--border-color);
}

.character-item.active .character-item-avatar {
    border-color: var(--accent-primary);
    box-shadow: 0 0 12px var(--accent-primary-glow);
}

.character-item-info {
    flex: 1;
    min-width: 0;
}

.character-item-name {
    font-weight: 600;
    font-size: 0.875rem;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.character-item-desc {
    font-size: 0.75rem;
    color: var(--text-secondary);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

/* Chat list items */
.chat-item {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 8px 12px;
    border-radius: var(--radius-sm);
    cursor: pointer;
    transition: all var(--transition-fast);
    border: 1px solid transparent;
    margin-bottom: 2px;
    font-size: 0.82rem;
}

.chat-item:hover {
    background: var(--bg-hover);
}

.chat-item.active {
    background: var(--accent-primary-glow);
    border-color: var(--border-accent);
}

.chat-item-icon {
    color: var(--text-muted);
    flex-shrink: 0;
}

.chat-item-title {
    flex: 1;
    min-width: 0;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    color: var(--text-secondary);
}

.chat-item.active .chat-item-title {
    color: var(--text-primary);
}

.chat-item-delete:hover {
    color: var(--danger);
    background: var(--danger-bg);
}

/* Sidebar Footer */
.sidebar-footer {
    padding: 12px 18px;
    border-top: 1px solid var(--border-color);
}

.connection-status {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 0.78rem;
    color: var(--text-secondary);
}

.status-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    flex-shrink: 0;
}

.status-dot.online {
    background: var(--success);
    box-shadow: 0 0 8px rgba(52, 211, 153, 0.5);
    animation: status-pulse 2s ease-in-out infinite;
}

.status-dot.offline {
    background: var(--text-muted);
}

.status-dot.error {
    background: var(--danger);
}

@keyframes status-pulse {

    0%,
    100% {
        opacity: 1;
    }

    50% {
        opacity: 0.5;
    }
}

/* ═══════════════════════════════════════════════════════════
   MAIN AREA
   ═══════════════════════════════════════════════════════════ */
.main-area {
    flex: 1;
    display: flex;
    flex-direction: column;
    height: 100vh;
    height: 100dvh;
    overflow: hidden;
    background: var(--bg-primary);
    position: relative;
}

/* Background decoration */
.main-area::before {
    content: '';
    position: absolute;
    top: -200px;
    right: -200px;
    width: 500px;
    height: 500px;
    background: radial-gradient(circle, rgba(124, 92, 252, 0.06) 0%, transparent 70%);
    pointer-events: none;
    z-index: 0;
}

.main-area::after {
    content: '';
    position: absolute;
    bottom: -100px;
    left: -100px;
    width: 400px;
    height: 400px;
    background: radial-gradient(circle, rgba(244, 114, 182, 0.04) 0%, transparent 70%);
    pointer-events: none;
    z-index: 0;
}

.view {
    display: none;
    flex-direction: column;
    height: 100%;
    position: relative;
    z-index: 1;
}

.view.active {
    display: flex;
}

/* ═══ WELCOME SCREEN ═══ */
.welcome-menu-btn {
    position: absolute;
    top: 16px;
    left: 16px;
    z-index: 10;
}

.welcome-container {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    height: 100%;
    text-align: center;
    padding: 40px;
    gap: 16px;
}

.welcome-icon {
    font-size: 4rem;
    background: var(--accent-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    animation: float 6s ease-in-out infinite;
    margin-bottom: 8px;
}

@keyframes float {

    0%,
    100% {
        transform: translateY(0);
    }

    50% {
        transform: translateY(-12px);
    }
}

.welcome-container h1 {
    font-size: 2.2rem;
    font-weight: 800;
    letter-spacing: -0.03em;
    background: var(--accent-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.welcome-subtitle {
    color: var(--text-secondary);
    font-size: 1.05rem;
    margin-bottom: 12px;
}

.welcome-steps {
    display: flex;
    flex-direction: column;
    gap: 14px;
    margin: 20px 0 30px;
    max-width: 420px;
    width: 100%;
}

.step {
    display: flex;
    align-items: flex-start;
    gap: 14px;
    padding: 14px 18px;
    background: var(--bg-elevated);
    border-radius: var(--radius-md);
    border: 1px solid var(--border-color);
    text-align: left;
    transition: all var(--transition-fast);
}

.step:hover {
    border-color: var(--border-accent);
    transform: translateX(4px);
}

.step-num {
    width: 28px;
    height: 28px;
    min-width: 28px;
    border-radius: 50%;
    background: var(--accent-gradient);
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: 0.8rem;
    color: white;
    margin-top: 2px;
}

.step-text {
    display: flex;
    flex-direction: column;
    gap: 2px;
}

.step-text strong {
    font-size: 0.9rem;
}

.step-text span {
    font-size: 0.8rem;
    color: var(--text-secondary);
}

/* ═══ CHAT VIEW ═══ */
.chat-header {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px 20px;
    background: var(--glass-bg);
    backdrop-filter: blur(16px);
    border-bottom: 1px solid var(--border-color);
    z-index: 10;
}

.chat-header-avatar {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: var(--accent-gradient);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.3rem;
    font-weight: 700;
    color: white;
    flex-shrink: 0;
}

.chat-header-info {
    flex: 1;
    min-width: 0;
}

.chat-header-info h2 {
    font-size: 1rem;
    font-weight: 700;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.chat-header-status {
    font-size: 0.75rem;
    color: var(--success);
}

.chat-header-actions {
    display: flex;
    gap: 4px;
}

/* .mobile-menu-btn is visible on desktop as well now */

/* ═══ MESSAGES ═══ */
.chat-messages {
    flex: 1;
    overflow-y: auto;
    overflow-x: hidden;
    padding: 20px;
    display: flex;
    flex-direction: column;
    gap: 16px;
    scrollbar-width: thin;
    scrollbar-color: var(--bg-hover) transparent;
}

.chat-messages::-webkit-scrollbar {
    width: 5px;
}

.chat-messages::-webkit-scrollbar-thumb {
    background: var(--bg-hover);
    border-radius: 4px;
}

.message {
    display: flex;
    gap: 10px;
    max-width: 78%;
    animation: messageIn 0.3s ease-out;
    transition: max-width 0.3s ease, width 0.3s ease;
}

.message.is-editing {
    max-width: 100%;
    width: 100%;
}

@keyframes messageIn {
    from {
        opacity: 0;
        transform: translateY(10px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.message.user {
    align-self: flex-end;
    flex-direction: row-reverse;
}

.message.assistant {
    align-self: flex-start;
}

.message-avatar {
    width: 32px;
    height: 32px;
    min-width: 32px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.9rem;
    margin-top: 4px;
}

.message.user .message-avatar {
    background: var(--bg-tertiary);
    border: 1px solid var(--border-color);
}

.message.assistant .message-avatar {
    background: var(--accent-gradient);
    color: white;
    font-weight: 700;
}

.message-bubble {
    padding: 12px 16px;
    border-radius: var(--radius-lg);
    line-height: 1.6;
    font-size: 0.9rem;
    word-break: break-word;
    position: relative;
}

.message.user .message-bubble {
    background: var(--bubble-user);
    color: white;
    border-bottom-right-radius: 4px;
}

.message-bubble-container {
    position: relative;
    display: flex;
    align-items: center;
    transition: transform 0.3s ease;
}

.message-bubble-container.swiped-left {
    transform: translateX(-45px);
}

.regenerate-btn {
    position: absolute;
    right: -40px;
    background: var(--accent-gradient);
    color: white;
    border: none;
    border-radius: 50%;
    width: 32px;
    height: 32px;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    box-shadow: 0 2px 5px rgba(0, 0, 0, 0.3);
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.3s ease;
}

.message-bubble-container.swiped-left .regenerate-btn {
    opacity: 1;
    pointer-events: auto;
}

@media (hover: hover) {
    .regenerate-btn {
        opacity: 1;
        pointer-events: auto;
    }
}

.alternate-nav {
    display: flex;
    align-items: center;
    gap: 8px;
    margin-top: 4px;
    font-size: 0.8rem;
    color: var(--text-muted);
}

.alternate-nav button {
    background: none;
    border: none;
    color: var(--text-muted);
    cursor: pointer;
    padding: 2px 6px;
}

.alternate-nav button:hover {
    color: var(--text-main);
}

.message.assistant .message-bubble {
    background: var(--bubble-assistant);
    border: 1px solid var(--border-color);
    border-bottom-left-radius: 4px;
    color: var(--text-primary);
}

.message-time {
    font-size: 0.65rem;
    color: var(--text-muted);
}

.message-meta {
    display: flex;
    align-items: center;
    gap: 8px;
    margin-top: 4px;
    justify-content: flex-end;
}

.message.assistant .message-meta {
    justify-content: flex-start;
}

.message-action-btn {
    background: none;
    border: none;
    cursor: pointer;
    font-size: 1.1rem;
    color: var(--text-muted);
    opacity: 0.6;
    transition: all var(--transition-fast);
}

.message-action-btn:hover {
    opacity: 1;
    transform: scale(1.1);
}

/* Edit Container */
.message-edit-container {
    display: flex;
    flex-direction: column;
    gap: 8px;
    width: 100%;
    margin-top: 4px;
}

.message-edit-textarea {
    width: 100%;
    min-height: 120px;
    background: var(--bg-tertiary);
    color: var(--text-primary);
    border: 1px solid var(--border-accent);
    border-radius: var(--radius-md);
    padding: 12px 14px;
    font-family: inherit;
    font-size: 0.95rem;
    line-height: 1.5;
    resize: none;
    outline: none;
    transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}

.message-edit-textarea:focus {
    border-color: var(--accent-secondary);
    box-shadow: 0 0 0 2px var(--accent-primary-glow);
}

.message-edit-actions {
    display: flex;
    justify-content: flex-end;
    gap: 8px;
}

/* First message / greeting */
.first-message {
    text-align: center;
    padding: 20px;
    color: var(--text-secondary);
    font-style: italic;
    font-size: 0.85rem;
}

/* Empty chat */
.empty-chat {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    height: 100%;
    gap: 12px;
    color: var(--text-muted);
}

.empty-chat-icon {
    font-size: 3rem;
    opacity: 0.3;
}

/* ═══ CHAT INPUT ═══ */
.chat-input-container {
    padding: 0 20px 20px;
    position: relative;
}

.typing-indicator {
    display: flex;
    align-items: center;
    gap: 6px;
    padding: 8px 16px;
    font-size: 0.8rem;
    color: var(--text-secondary);
}

.typing-dot {
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background: var(--accent-primary);
    animation: typingBounce 1.4s ease-in-out infinite;
}

.typing-dot:nth-child(2) {
    animation-delay: 0.2s;
}

.typing-dot:nth-child(3) {
    animation-delay: 0.4s;
}

@keyframes typingBounce {

    0%,
    60%,
    100% {
        transform: translateY(0);
        opacity: 0.4;
    }

    30% {
        transform: translateY(-6px);
        opacity: 1;
    }
}

.typing-text {
    margin-left: 4px;
}

.chat-input-form {
    display: flex;
    align-items: flex-end;
    gap: 10px;
    background: var(--bg-elevated);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-xl);
    padding: 8px 8px 8px 18px;
    transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}

.chat-input-form:focus-within {
    border-color: var(--accent-primary);
    box-shadow: 0 0 0 3px var(--accent-primary-glow);
}

#chat-input {
    flex: 1;
    background: none;
    border: none;
    color: var(--text-primary);
    font-family: inherit;
    font-size: 0.9rem;
    resize: none;
    outline: none;
    max-height: 150px;
    line-height: 1.5;
    padding: 6px 0;
}

#chat-input::placeholder {
    color: var(--text-muted);
}

.btn-send {
    width: 40px;
    height: 40px;
    min-width: 40px;
    border-radius: 50%;
    background: var(--accent-gradient);
    border: none;
    color: white;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all var(--transition-fast);
}

.btn-send:hover {
    transform: scale(1.05);
    box-shadow: var(--shadow-glow);
}

.btn-send:active {
    transform: scale(0.95);
}

.btn-send:disabled {
    opacity: 0.4;
    cursor: not-allowed;
    transform: none;
}

/* ═══════════════════════════════════════════════════════════
   BUTTONS
   ═══════════════════════════════════════════════════════════ */
.btn-icon {
    width: 36px;
    height: 36px;
    border-radius: var(--radius-sm);
    background: none;
    border: 1px solid transparent;
    color: var(--text-secondary);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all var(--transition-fast);
}

.btn-icon:hover {
    background: var(--bg-hover);
    color: var(--text-primary);
    border-color: var(--border-hover);
}

.btn-primary {
    padding: 10px 20px;
    background: var(--accent-gradient);
    color: white;
    border: none;
    border-radius: var(--radius-md);
    font-family: inherit;
    font-size: 0.875rem;
    font-weight: 600;
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: 8px;
    transition: all var(--transition-fast);
}

.btn-primary:hover {
    background: var(--accent-gradient-hover);
    transform: translateY(-1px);
    box-shadow: var(--shadow-glow);
}

.btn-secondary {
    padding: 10px 20px;
    background: var(--bg-tertiary);
    color: var(--text-primary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    font-family: inherit;
    font-size: 0.875rem;
    font-weight: 500;
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: 8px;
    transition: all var(--transition-fast);
}

.btn-secondary:hover {
    background: var(--bg-hover);
    border-color: var(--border-hover);
}

.btn-danger {
    padding: 10px 20px;
    background: var(--danger-bg);
    color: var(--danger);
    border: 1px solid rgba(248, 113, 113, 0.2);
    border-radius: var(--radius-md);
    font-family: inherit;
    font-size: 0.875rem;
    font-weight: 500;
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: 8px;
    transition: all var(--transition-fast);
}

.btn-danger:hover {
    background: rgba(248, 113, 113, 0.2);
    border-color: var(--danger);
}

/* ═══════════════════════════════════════════════════════════
   MODALS
   ═══════════════════════════════════════════════════════════ */
.modal-overlay {
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.6);
    backdrop-filter: blur(8px);
    display: none;
    align-items: center;
    justify-content: center;
    z-index: 1000;
    padding: 20px;
    animation: fadeIn 0.2s ease-out;
}

.modal-overlay.show {
    display: flex;
}

@keyframes fadeIn {
    from {
        opacity: 0;
    }

    to {
        opacity: 1;
    }
}

.modal {
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-xl);
    width: 100%;
    max-width: 500px;
    max-height: 85vh;
    overflow: hidden;
    display: flex;
    flex-direction: column;
    box-shadow: var(--shadow-lg);
    animation: slideUp 0.3s ease-out;
}

.modal-large {
    max-width: 640px;
}

@keyframes slideUp {
    from {
        opacity: 0;
        transform: translateY(20px) scale(0.98);
    }

    to {
        opacity: 1;
        transform: translateY(0) scale(1);
    }
}

.modal-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 18px 22px;
    border-bottom: 1px solid var(--border-color);
}

.modal-header h2 {
    font-size: 1.05rem;
    font-weight: 700;
}

.modal-body {
    padding: 22px;
    overflow-y: auto;
    flex: 1;
    scrollbar-width: thin;
    scrollbar-color: var(--bg-hover) transparent;
}

.modal-body::-webkit-scrollbar {
    width: 4px;
}

.modal-body::-webkit-scrollbar-thumb {
    background: var(--bg-hover);
    border-radius: 4px;
}

/* ═══════════════════════════════════════════════════════════
   FORMS
   ═══════════════════════════════════════════════════════════ */
.form-group {
    margin-bottom: 16px;
}

.form-group label {
    display: block;
    font-size: 0.82rem;
    font-weight: 600;
    color: var(--text-secondary);
    margin-bottom: 6px;
}

.form-input {
    width: 100%;
    padding: 10px 14px;
    background: var(--bg-tertiary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    color: var(--text-primary);
    font-family: inherit;
    font-size: 0.875rem;
    transition: all var(--transition-fast);
    outline: none;
}

.form-input:focus {
    border-color: var(--accent-primary);
    box-shadow: 0 0 0 3px var(--accent-primary-glow);
}

.form-input::placeholder {
    color: var(--text-muted);
}

textarea.form-input {
    resize: vertical;
    min-height: 60px;
    line-height: 1.5;
}

select.form-input {
    cursor: pointer;
    appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg width='10' height='6' viewBox='0 0 10 6' xmlns='http://www.w3.org/2000/svg'%3E%3Cpath d='M1 1l4 4 4-4' stroke='%239895a8' fill='none' stroke-width='1.5'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 12px center;
    padding-right: 32px;
}

.form-hint {
    display: block;
    font-size: 0.72rem;
    color: var(--text-muted);
    margin-top: 4px;
}

.form-row {
    display: flex;
    gap: 14px;
}

.flex-1 {
    flex: 1;
}

.form-actions {
    display: flex;
    gap: 10px;
    margin-top: 20px;
    align-items: center;
}

/* ═══ CONNECTION RESULT ═══ */
.connection-result {
    margin-top: 14px;
    padding: 12px 16px;
    border-radius: var(--radius-sm);
    font-size: 0.82rem;
    font-family: 'JetBrains Mono', monospace;
}

.connection-result.success {
    background: rgba(52, 211, 153, 0.1);
    border: 1px solid rgba(52, 211, 153, 0.3);
    color: var(--success);
}

.connection-result.error {
    background: var(--danger-bg);
    border: 1px solid rgba(248, 113, 113, 0.3);
    color: var(--danger);
}

/* ═══════════════════════════════════════════════════════════
   MEMORY VIEWER
   ═══════════════════════════════════════════════════════════ */
.memory-section {
    margin-bottom: 20px;
}

.memory-section h3 {
    font-size: 0.9rem;
    font-weight: 700;
    margin-bottom: 10px;
    padding-bottom: 6px;
    border-bottom: 1px solid var(--border-color);
}

.memory-items {
    display: flex;
    flex-direction: column;
    gap: 4px;
    margin-bottom: 10px;
}

.memory-item {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 8px 12px;
    background: var(--bg-tertiary);
    border-radius: var(--radius-sm);
    font-size: 0.82rem;
    border: 1px solid var(--border-color);
    transition: all var(--transition-fast);
}

.memory-item:hover {
    border-color: var(--border-hover);
}

.memory-item-text {
    flex: 1;
    word-break: break-word;
}

.memory-item-key {
    font-weight: 600;
    color: var(--accent-secondary);
    min-width: 70px;
}

.memory-item-delete {
    background: none;
    border: none;
    color: var(--text-muted);
    cursor: pointer;
    font-size: 0.9rem;
    padding: 2px 6px;
    border-radius: 4px;
    transition: all var(--transition-fast);
    opacity: 0;
}

.memory-item:hover .memory-item-delete {
    opacity: 1;
}

.memory-item-delete:hover {
    color: var(--danger);
    background: var(--danger-bg);
}

.memory-add-row {
    display: flex;
    gap: 8px;
    align-items: center;
}

.memory-add-row .form-input {
    flex: 1;
    padding: 8px 12px;
    font-size: 0.82rem;
}

.memory-add-row .btn-secondary {
    padding: 8px 14px;
    font-size: 0.78rem;
    white-space: nowrap;
}

/* ═══════════════════════════════════════════════════════════
   RESPONSIVE
   ═══════════════════════════════════════════════════════════ */
@media (min-width: 769px) {
    .sidebar.closed {
        margin-left: calc(var(--sidebar-width) * -1);
    }
}

@media (max-width: 768px) {
    .sidebar {
        position: fixed;
        left: 0;
        top: 0;
        transform: translateX(-100%);
    }

    .sidebar.open {
        transform: translateX(0);
        box-shadow: var(--shadow-lg);
    }

    .mobile-menu-btn {
        display: flex;
    }

    .message {
        max-width: 90%;
    }

    .modal {
        max-width: 100%;
        max-height: 95vh;
        border-radius: var(--radius-lg);
    }

    .welcome-container {
        padding: 20px;
    }

    .welcome-container h1 {
        font-size: 1.6rem;
    }

    .form-row {
        flex-direction: column;
    }
}

/* ═══ SCROLLBAR FOR MOBILE ═══ */
@media (hover: none) {
    .chat-messages {
        scrollbar-width: none;
    }

    .chat-messages::-webkit-scrollbar {
        display: none;
    }
}

/* ═══ Loading spinner ═══ */
.spinner {
    width: 18px;
    height: 18px;
    border: 2px solid transparent;
    border-top-color: currentColor;
    border-radius: 50%;
    animation: spin 0.6s linear infinite;
    display: inline-block;
}

@keyframes spin {
    to {
        transform: rotate(360deg);
    }
}

/* ═══ Toast notification ═══ */
.toast {
    position: fixed;
    bottom: 30px;
    right: 30px;
    padding: 14px 22px;
    background: var(--bg-elevated);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    color: var(--text-primary);
    font-size: 0.85rem;
    box-shadow: var(--shadow-lg);
    z-index: 2000;
    animation: toastIn 0.3s ease-out;
    max-width: 360px;
}

.toast.success {
    border-color: rgba(52, 211, 153, 0.4);
}

.toast.error {
    border-color: rgba(248, 113, 113, 0.4);
}

.toast.warning {
    border-color: rgba(251, 191, 36, 0.4);
}

@keyframes toastIn {
    from {
        opacity: 0;
        transform: translateY(20px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* ═══════════════════════════════════════════════════════════
   AVATAR UPLOAD
   ═══════════════════════════════════════════════════════════ */
.avatar-upload-group {
    width: 120px;
    flex-shrink: 0;
}

.avatar-upload-container {
    position: relative;
    width: 90px;
    height: 90px;
}

.avatar-file-input {
    display: none;
}

.avatar-preview {
    width: 90px;
    height: 90px;
    border-radius: 50%;
    background: var(--bg-tertiary);
    border: 2px dashed var(--border-hover);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 4px;
    cursor: pointer;
    transition: all var(--transition-fast);
    overflow: hidden;
    color: var(--text-muted);
    font-size: 0.7rem;
}

.avatar-preview:hover {
    border-color: var(--accent-primary);
    color: var(--accent-primary);
    background: var(--accent-primary-glow);
}

.avatar-preview.has-image {
    border-style: solid;
    border-color: var(--accent-primary);
    box-shadow: 0 0 12px var(--accent-primary-glow);
}

.avatar-preview.has-image:hover {
    border-color: var(--accent-secondary);
    box-shadow: 0 0 18px var(--accent-primary-glow);
}

.avatar-preview img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    border-radius: 50%;
}

.avatar-remove-btn {
    position: absolute;
    top: -4px;
    right: -4px;
    width: 22px;
    height: 22px;
    border-radius: 50%;
    background: var(--danger);
    color: white;
    border: 2px solid var(--bg-secondary);
    font-size: 0.65rem;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all var(--transition-fast);
    z-index: 2;
    line-height: 1;
}

.avatar-remove-btn:hover {
    transform: scale(1.15);
    background: #ef4444;
}

/* Avatar in character list (image support) */
.character-item-avatar img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    border-radius: 50%;
}

/* Avatar in chat header (image support) */
.chat-header-avatar img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    border-radius: 50%;
}

/* Avatar in messages (image support) */
.message-avatar img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    border-radius: 50%;
}

/* ═══════════════════════════════════════════════════════════
   CHAT ITEM RENAME
   ═══════════════════════════════════════════════════════════ */
.chat-item-actions {
    display: flex;
    gap: 2px;
    opacity: 0;
    transition: opacity var(--transition-fast);
    flex-shrink: 0;
}

.chat-item:hover .chat-item-actions,
.chat-item.active .chat-item-actions {
    opacity: 1;
}

.chat-item-edit,
.chat-item-delete {
    background: none;
    border: none;
    color: var(--text-muted);
    cursor: pointer;
    padding: 2px;
    border-radius: 4px;
    transition: all var(--transition-fast);
    font-size: 0.78rem;
    display: flex;
    align-items: center;
    justify-content: center;
    width: 22px;
    height: 22px;
}

.chat-item-edit:hover {
    color: var(--accent-primary);
    background: var(--accent-primary-glow);
}

.chat-item-rename-container {
    display: flex;
    align-items: center;
    gap: 6px;
    flex: 1;
    min-width: 0;
}

.chat-item-rename-input {
    flex: 1;
    min-width: 0;
    background: var(--bg-tertiary);
    border: 1px solid var(--accent-primary);
    border-radius: 6px;
    color: var(--text-primary);
    font-family: inherit;
    font-size: 0.8rem;
    padding: 4px 8px;
    outline: none;
    box-shadow: 0 0 0 2px var(--accent-primary-glow);
}

.chat-item-rename-actions {
    display: flex;
    gap: 2px;
    flex-shrink: 0;
}

.chat-item-rename-actions button {
    background: none;
    border: none;
    cursor: pointer;
    padding: 2px 4px;
    border-radius: 4px;
    font-size: 0.75rem;
    transition: all var(--transition-fast);
    display: flex;
    align-items: center;
    justify-content: center;
}

.chat-rename-save {
    color: var(--success);
}

.chat-rename-save:hover {
    background: rgba(52, 211, 153, 0.15);
}

.chat-rename-cancel {
    color: var(--text-muted);
}

.chat-rename-cancel:hover {
    color: var(--danger);
    background: var(--danger-bg);
}