/* ==========================================================================
   Original theme — classic Qinger look (from OG backup).
   Flat Telegram-style dark grays with #2b5278 blue sent bubbles.
   Scoped under [data-theme="original"] / :root[data-theme="original"].
   ========================================================================== */

:root[data-theme="original"] {
    /* Core surfaces */
    --bg: #212121;
    --surface: #1f1f1f;
    --surface-2: #2f2f2f;
    --surface-3: #2a2a2a;
    --hairline: #2c2c2c;
    --hairline-strong: #3a3a3a;

    /* Brand / accent — flat Telegram blue, no purple/teal gradient */
    --accent: #2b5278;
    --accent-2: #2b5278;
    --accent-3: #1a3a5f;
    --accent-gradient: linear-gradient(135deg, #2b5278 0%, #2b5278 100%);
    --accent-gradient-soft: rgba(43, 82, 120, 0.35);
    --accent-glow: rgba(43, 82, 120, 0.25);

    /* Text */
    --text: #ffffff;
    --text-secondary: #8a8a8a;

    /* Bubbles */
    --bubble-sent: #2b5278;
    --bubble-received: #2f2f2f;

    /* Shape & elevation — simpler, less rounded */
    --radius-sm: 4px;
    --radius: 10px;
    --radius-lg: 10px;
    --shadow: 0 2px 10px rgba(0, 0, 0, 0.2);
    --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.15);

    /* Legacy --tg-* aliases */
    --tg-background: var(--bg);
    --tg-sidebar-background: var(--surface);
    --tg-chat-background: var(--bg);
    --tg-text-primary: var(--text);
    --tg-text-secondary: var(--text-secondary);
    --tg-message-sent: #2b5278;
    --tg-message-received: #2f2f2f;
    --tg-input-background: var(--bg);
    --mobile-nav-height: 56px;
}

/* Flat body — no Modern blue/purple radial glow */
[data-theme="original"] body {
    background-color: var(--bg);
    background-image: none;
    color: var(--text);
}

[data-theme="original"] #sidebar {
    border-right-color: #2c2c2c;
}

[data-theme="original"] #sidebar-header {
    border-bottom-color: #2c2c2c;
}

[data-theme="original"] #chat-header {
    padding: 15px;
    background-color: var(--surface);
    backdrop-filter: none;
    -webkit-backdrop-filter: none;
    border-bottom-color: #2c2c2c;
}

[data-theme="original"] #messages-container {
    background-color: var(--bg);
    background-image: none;
    scrollbar-color: #333 #1a1a1a;
}

[data-theme="original"] #messages-container::-webkit-scrollbar-track {
    background: #1a1a1a;
}

[data-theme="original"] #messages-container::-webkit-scrollbar-thumb {
    background: #333;
}

[data-theme="original"] #messages-container::-webkit-scrollbar-thumb:hover {
    background: #444;
}

/* Chat list — OG flat hover/active, no accent bar */
[data-theme="original"] .chat-item {
    padding: 15px;
    margin: 0;
    border-radius: 0;
}

[data-theme="original"] .chat-item:hover {
    background-color: #2a2a2a;
}

[data-theme="original"] .chat-item.active {
    background-color: #2b5278;
    background-image: none;
    box-shadow: none;
}

[data-theme="original"] .chat-item.active::before {
    display: none;
}

[data-theme="original"] #search-input {
    background-color: #2f2f2f;
    border: none;
    color: #ffffff;
    padding: 10px;
    border-radius: 10px;
    box-shadow: none;
}

[data-theme="original"] #search-input:focus {
    background-color: #2f2f2f;
    border: none;
    box-shadow: none;
}

[data-theme="original"] .search-icon:hover {
    color: var(--text);
}

/* Message bubbles — solid colors, squarer corners */
[data-theme="original"] .message {
    border-radius: 6px;
    box-shadow: none;
}

[data-theme="original"] .message.sent {
    background-color: var(--tg-message-sent);
    background-image: none;
    border-bottom-right-radius: 4px;
}

[data-theme="original"] .message.received {
    background-color: var(--tg-message-received);
    border: none;
    border-bottom-left-radius: 4px;
}

[data-theme="original"] .message.sent .message-header,
[data-theme="original"] .message.sent .message-sender,
[data-theme="original"] .message.sent .message-time {
    color: var(--text-secondary);
}

[data-theme="original"] #message-input-container {
    padding: 15px;
    background-color: var(--tg-input-background);
    backdrop-filter: none;
    -webkit-backdrop-filter: none;
    gap: 0;
}

[data-theme="original"] #message-input {
    background-color: #2f2f2f;
    border: none;
    color: #ffffff;
    padding: 10px;
    border-radius: 10px;
    margin-right: 15px;
    box-shadow: none;
}

[data-theme="original"] #message-input:focus {
    background-color: #2f2f2f;
    border: none;
    box-shadow: none;
}

[data-theme="original"] #send-button {
    background-color: #4a4a4a;
    background-image: none;
    width: 40px;
    height: 40px;
    box-shadow: none;
}

[data-theme="original"] #send-button:hover,
[data-theme="original"] #send-button:active {
    transform: none;
    box-shadow: none;
}

/* Sidebar footer — OG gray action circles */
[data-theme="original"] #sidebar-footer {
    background-color: #2a2a2a;
    border-top-color: #3a3a3a;
}

[data-theme="original"] .sidebar-action-icon {
    background-color: #3a3a3a;
}

[data-theme="original"] .sidebar-action-icon:hover {
    background-color: #4a4a4a;
}

[data-theme="original"] .sidebar-action-icon.active {
    color: var(--text);
    background-color: #4a4a4a;
}

[data-theme="original"] .settings-tab:hover {
    background-color: #2a2a2a;
}

[data-theme="original"] .settings-tab.active {
    background-color: #2b5278;
    background-image: none;
    box-shadow: none;
}

[data-theme="original"] .theme-option {
    background-color: #2f2f2f;
    border-color: #2c2c2c;
}

[data-theme="original"] .theme-option:hover {
    background-color: #2a2a2a;
    border-color: #3a3a3a;
}

[data-theme="original"] .theme-option.active {
    background-color: #2b5278;
    background-image: none;
    border-color: #2b5278;
    box-shadow: none;
}

[data-theme="original"] .theme-option.active .theme-option-check {
    background-color: rgba(255, 255, 255, 0.2);
}

[data-theme="original"] .profile-header {
    border-bottom-color: #2c2c2c;
}

[data-theme="original"] .modal {
    backdrop-filter: none;
    -webkit-backdrop-filter: none;
}

[data-theme="original"] .modal-content {
    background-color: #2a2a2a;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
}

[data-theme="original"] .search-dropdown {
    border-color: #2c2c2c;
}

[data-theme="original"] .search-dropdown-item:hover {
    background-color: #2a2a2a;
}

[data-theme="original"] .input-group input {
    background-color: #2f2f2f;
    border: none;
    color: #ffffff;
    border-radius: 4px;
    box-shadow: none;
}

[data-theme="original"] .input-group input:focus {
    border: none;
    box-shadow: none;
}

[data-theme="original"] #create-qing-button {
    background-color: #2b5278;
    background-image: none;
    border-radius: 4px;
    font-weight: normal;
}

[data-theme="original"] #create-qing-button:hover:not(:disabled) {
    background-color: #1a3a5f;
    box-shadow: none;
    transform: none;
}

[data-theme="original"] #create-qing-button:disabled {
    background-color: #3a3a3a;
    color: var(--text-secondary);
}

[data-theme="original"] .cover-charge-overlay {
    background-color: rgba(33, 33, 33, 0.96);
    backdrop-filter: none;
    -webkit-backdrop-filter: none;
    border-top-color: #2c2c2c;
}

[data-theme="original"] .cover-charge-content button {
    background-color: #2b5278;
    background-image: none;
    border-radius: 4px;
    font-weight: normal;
}

[data-theme="original"] .cover-charge-content button:hover {
    background-color: #1a3a5f;
    box-shadow: none;
    transform: none;
}

[data-theme="original"] .admin-panel-input-group input {
    background-color: #2f2f2f;
    border: none;
}

[data-theme="original"] .admin-panel-input-group button {
    background-color: #2b5278;
}

[data-theme="original"] .admin-panel-input-group button:hover {
    background-color: #1a3a5f;
}

[data-theme="original"] .exchange-info {
    background-color: #2f2f2f;
    border-left-color: #2b5278;
}

[data-theme="original"] .mobile-panel {
    background-color: var(--surface);
}

[data-theme="original"] .panel-header {
    border-bottom-color: #2c2c2c;
    background-color: var(--surface);
}

[data-theme="original"] .profile-section {
    border-bottom-color: #2c2c2c;
}

[data-theme="original"] .section-value input {
    background-color: #2f2f2f;
    border: none;
}

[data-theme="original"] .section-value input:read-only {
    background-color: #1a1a1a;
}

[data-theme="original"] .chat-avatar {
    box-shadow: none;
}

[data-theme="original"] .message-avatar {
    background-color: #2b5278;
}

[data-theme="original"] .message.sent .message-avatar {
    background-color: #1a3a5f;
}