/* ==========================================================================
   Chat Input Footer
   ========================================================================== */
.chat-footer {
    padding: 10px 20px 24px;
    display: flex;
    justify-content: center;
    background: linear-gradient(180deg, transparent 0%, var(--bg-main) 40%);
    position: relative;
    z-index: 10;
}

.input-area-container {
    max-width: 720px;
    width: 100%;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 8px;
}

/* Cozy pill-shaped chat container */
#chat-form {
    display: flex;
    gap: 12px;
    background-color: var(--bg-input);
    padding: 10px 12px 10px 24px;
    border-radius: 12px; /* Rectangle with curved corners */
    border: 1px solid var(--border-color);
    transition: var(--transition-m3);
    width: 100%;
    align-items: center;
    box-shadow: var(--shadow-m3-mid);
}

#chat-form:focus-within {
    border-color: var(--accent-color);
    box-shadow: 0 0 16px rgba(56, 189, 248, 0.2);
}

#user-input {
    flex: 1;
    background: transparent;
    border: none;
    outline: none;
    color: var(--text-primary);
    font-size: 0.975rem;
    padding: 8px 0;
    font-family: inherit;
    resize: none;
    overflow-y: auto;
    max-height: 150px;
    line-height: 1.5;
}

#user-input::placeholder {
    color: var(--text-secondary);
    opacity: 0.65;
}

/* Tactile Send Button */
#send-btn {
    background-color: var(--accent-color);
    border: none;
    width: 40px;
    height: 40px;
    border-radius: 8px; /* Curved corner square to match chatbox */
    display: flex;
    justify-content: center;
    align-items: center;
    color: var(--accent-text);
    cursor: pointer;
    transition: var(--transition-m3);
    box-shadow: 0 4px 10px rgba(56, 189, 248, 0.3);
}

#send-btn:hover {
    background-color: var(--accent-hover);
    color: var(--accent-text);
    box-shadow: 0 6px 14px rgba(56, 189, 248, 0.5);
    transform: scale(1.05);
}

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

#send-btn svg {
    width: 18px;
    height: 18px;
}

/* Stop Generation Button */
#stop-btn {
    background-color: #ef4444;
    border: none;
    width: 40px;
    height: 40px;
    border-radius: 8px; /* Curved corner square to match chatbox */
    display: flex;
    justify-content: center;
    align-items: center;
    color: #fff;
    cursor: pointer;
    transition: var(--transition-m3);
    box-shadow: 0 4px 10px rgba(239, 68, 68, 0.3);
    flex-shrink: 0;
}

#stop-btn:hover {
    background-color: #f87171;
    box-shadow: 0 6px 14px rgba(239, 68, 68, 0.5);
    transform: scale(1.05);
}

#stop-btn:active {
    transform: scale(0.95);
}

#stop-btn svg {
    width: 16px;
    height: 16px;
}

.input-disclaimer {
    font-size: 0.72rem;
    color: var(--text-muted);
}

/* ==========================================================================
   Material 3 Floating Model Dropdown Selector
   ========================================================================== */
.chat-config-row {
    display: flex;
    align-items: center;
    gap: 8px;
    margin-bottom: 8px;
    margin-left: 12px;
    align-self: flex-start;
    flex-wrap: wrap;
}

.model-select-wrapper {
    position: relative;
}

.model-dropdown-btn {
    height: 38px;
    box-sizing: border-box;
    background: linear-gradient(135deg, rgba(56, 189, 248, 0.1), rgba(168, 85, 247, 0.1));
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border: 1px solid rgba(56, 189, 248, 0.3);
    color: var(--text-primary);
    padding: 0 18px;
    border-radius: var(--border-radius-pill); /* Pill shaped buttons */
    font-size: 0.85rem;
    font-weight: 600;
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: 8px;
    transition: var(--transition-m3);
    font-family: inherit;
    outline: none;
    box-shadow: 0 4px 15px rgba(56, 189, 248, 0.15);
}

.model-dropdown-btn:hover {
    background: linear-gradient(135deg, rgba(56, 189, 248, 0.2), rgba(168, 85, 247, 0.2));
    color: #ffffff;
    border-color: rgba(56, 189, 248, 0.6);
    box-shadow: 0 6px 20px rgba(56, 189, 248, 0.25);
    transform: translateY(-1px);
}

.model-dropdown-btn:focus {
    border-color: var(--accent-color);
    box-shadow: 0 0 10px var(--accent-glow);
}

.model-dropdown-btn:active {
    transform: translateY(0);
    box-shadow: 0 2px 10px rgba(56, 189, 248, 0.15);
}

.dropdown-chevron {
    width: 14px;
    height: 14px;
    color: var(--text-secondary);
    transition: transform 0.2s ease;
}

/* Prompt Selector Button (pill, matches model dropdown pattern) */
.prompt-select-wrapper {
    position: relative;
}

.prompt-select-btn {
    height: 38px;
    box-sizing: border-box;
    display: flex;
    align-items: center;
    gap: 8px;
    background: linear-gradient(135deg, rgba(56, 189, 248, 0.1), rgba(168, 85, 247, 0.1));
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border: 1px solid rgba(56, 189, 248, 0.3);
    color: var(--text-primary);
    border-radius: var(--border-radius-pill);
    padding: 0 18px;
    font-family: inherit;
    font-size: 0.85rem;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition-m3);
    white-space: nowrap;
    max-width: 220px;
    overflow: hidden;
    text-overflow: ellipsis;
    box-shadow: 0 4px 15px rgba(56, 189, 248, 0.15);
    outline: none;
}

.prompt-select-btn:hover {
    background: linear-gradient(135deg, rgba(56, 189, 248, 0.2), rgba(168, 85, 247, 0.2));
    color: #ffffff;
    border-color: rgba(56, 189, 248, 0.6);
    box-shadow: 0 6px 20px rgba(56, 189, 248, 0.25);
    transform: translateY(-1px);
}

.prompt-select-btn:focus {
    border-color: var(--accent-color);
    box-shadow: 0 0 10px var(--accent-glow);
}

.prompt-select-btn:active {
    transform: translateY(0);
    box-shadow: 0 2px 10px rgba(56, 189, 248, 0.15);
}

.prompt-select-btn #active-prompt-name {
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.prompt-icon {
    opacity: 0.6;
    flex-shrink: 0;
}

.prompt-select-wrapper.open .dropdown-chevron {
    transform: rotate(180deg);
}

.model-select-wrapper.open .dropdown-chevron {
    transform: rotate(180deg);
}

.model-dropdown-menu {
    position: absolute;
    bottom: calc(100% + 8px);
    left: 0;
    background-color: var(--bg-sidebar); /* Slate-obsidian elegant menu */
    border: 1px solid var(--border-color);
    border-radius: 20px; /* Elevated Rounded Menu */
    padding: 8px;
    width: 280px;
    max-width: calc(100vw - 48px);
    box-shadow: var(--shadow-m3-mid);
    z-index: 200;
    display: flex;
    flex-direction: column;
    gap: 6px;
    animation: menuFadeUp 0.25s cubic-bezier(0.34, 1.56, 0.64, 1);
}

@keyframes menuFadeUp {
    from { opacity: 0; transform: translateY(8px) scale(0.95); }
    to { opacity: 1; transform: translateY(0) scale(1); }
}

.model-dropdown-menu.hidden {
    display: none;
}

/* System Prompt Dropdown (opens upward like model selector) */
.prompt-dropdown-menu {
    position: absolute;
    bottom: calc(100% + 8px);
    left: 0;
    min-width: 300px;
    max-height: 400px;
    overflow-y: auto;
    background: var(--bg-sidebar);
    border: 1px solid var(--border-color);
    border-radius: 20px;
    box-shadow: var(--shadow-m3-high);
    z-index: 200;
    padding: 6px;
    animation: menuFadeUp 0.25s cubic-bezier(0.34, 1.56, 0.64, 1);
}

.prompt-dropdown-menu.hidden {
    display: none;
}

.prompt-dropdown-menu .dropdown-category-header {
    padding: 8px 12px;
    font-size: 0.72rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--text-muted);
    cursor: pointer;
    user-select: none;
    display: flex;
    justify-content: space-between;
    align-items: center;
    border-radius: 8px;
    transition: background 0.15s, color 0.15s;
    margin-top: 4px;
}

.prompt-dropdown-menu .dropdown-category-header:hover {
    background: var(--accent-dim);
    color: var(--accent-color);
}

.prompt-dropdown-menu .dropdown-category-chevron {
    font-size: 0.65rem;
    opacity: 0.8;
    transition: transform 0.2s;
}

.prompt-dropdown-menu .dropdown-category-items {
    overflow: hidden;
    transition: max-height 0.25s cubic-bezier(0.4, 0, 0.2, 1), opacity 0.2s ease-out;
    max-height: 800px;
    opacity: 1;
}

.prompt-dropdown-menu .dropdown-category-items.collapsed {
    max-height: 0;
    opacity: 0;
    pointer-events: none;
}

.prompt-dropdown-menu .dropdown-divider {
    height: 1px;
    background: var(--border-color);
    margin: 6px 8px;
}

.prompt-dropdown-menu .dropdown-item {
    display: flex;
    align-items: center;
    width: 100%;
    padding: 8px 12px;
    border-radius: var(--border-radius-pill);
    font-family: 'Outfit', sans-serif;
    font-size: 0.85rem;
    color: var(--text-primary);
    background: transparent;
    border: none;
    cursor: pointer;
    transition: background 0.15s;
    text-align: left;
    gap: 6px;
}

.prompt-dropdown-menu .dropdown-item:hover {
    background: var(--accent-dim);
}

.prompt-dropdown-menu .dropdown-item.selected {
    color: var(--accent-color);
    font-weight: 500;
}

.prompt-dropdown-menu .dropdown-item-user {
    justify-content: space-between;
}

.prompt-dropdown-menu .user-prompt-actions {
    display: flex;
    gap: 4px;
    opacity: 0;
    transition: opacity 0.15s;
}

.prompt-dropdown-menu .dropdown-item:hover .user-prompt-actions {
    opacity: 1;
}

.prompt-dropdown-menu .user-prompt-action-btn {
    background: none;
    border: none;
    color: var(--text-muted);
    cursor: pointer;
    padding: 2px 4px;
    border-radius: 4px;
    font-size: 0.75rem;
    font-family: inherit;
    transition: color 0.15s, background 0.15s;
}

.prompt-dropdown-menu .user-prompt-action-btn:hover {
    color: var(--text-primary);
    background: rgba(255, 255, 255, 0.1);
}

.prompt-dropdown-menu .user-prompt-action-btn.delete:hover {
    color: var(--accent-danger);
    background: rgba(244, 63, 94, 0.15);
}

.create-prompt-item {
    color: var(--accent-color) !important;
    font-weight: 500;
}

.dropdown-item {
    background: transparent;
    border: 1px solid transparent;
    border-radius: 12px;
    padding: 10px 14px;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: space-between;
    text-align: left;
    transition: var(--transition-m3);
    width: 100%;
    font-family: inherit;
}

.dropdown-item:hover {
    background-color: rgba(255, 255, 255, 0.04);
}

.dropdown-item.active {
    background-color: var(--accent-dim);
    border-color: rgba(56, 189, 248, 0.2);
}

.item-info {
    display: flex;
    flex-direction: column;
    gap: 2px;
}

.item-name {
    font-size: 0.88rem;
    font-weight: 600;
    color: var(--text-primary);
}

.dropdown-item.active .item-name {
    color: var(--accent-color);
}

.item-desc {
    font-size: 0.72rem;
    color: var(--text-secondary);
}

.item-badge {
    font-size: 0.65rem;
    font-weight: 700;
    color: var(--text-secondary);
    border: 1px solid var(--border-color);
    background-color: rgba(255, 255, 255, 0.02);
    padding: 1px 6px;
    border-radius: 6px;
    text-transform: uppercase;
}

.dropdown-item.active .item-badge {
    color: var(--accent-color);
    border-color: var(--accent-dim);
    background-color: var(--accent-dim);
}

/* ==========================================================================
   Premium Glassmorphic Continue Button
   ========================================================================== */
.continue-btn {
    height: 38px;
    box-sizing: border-box;
    background: linear-gradient(135deg, rgba(56, 189, 248, 0.1), rgba(168, 85, 247, 0.1));
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border: 1px solid rgba(56, 189, 248, 0.3);
    color: var(--text-primary);
    padding: 0 18px;
    border-radius: var(--border-radius-pill);
    font-size: 0.85rem;
    font-weight: 600;
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: 8px;
    transition: var(--transition-m3);
    font-family: inherit;
    outline: none;
    box-shadow: 0 4px 15px rgba(56, 189, 248, 0.15);
}

.continue-btn:hover {
    background: linear-gradient(135deg, rgba(56, 189, 248, 0.2), rgba(168, 85, 247, 0.2));
    color: #ffffff;
    border-color: rgba(56, 189, 248, 0.6);
    box-shadow: 0 6px 20px rgba(56, 189, 248, 0.25);
    transform: translateY(-1px);
}

.continue-btn:active {
    transform: translateY(0);
    box-shadow: 0 2px 10px rgba(56, 189, 248, 0.15);
}

.continue-btn.hidden {
    display: none !important;
}

.continue-icon {
    stroke: var(--accent-color);
    transition: transform 0.2s ease;
}

.continue-btn:hover .continue-icon {
    transform: scale(1.1);
    filter: drop-shadow(0 0 4px var(--accent-glow));
}

/* Thinking Mode Toggle Button styling */
.thinking-toggle-btn {
    height: 38px;
    box-sizing: border-box;
    display: flex;
    align-items: center;
    gap: 8px;
    background: linear-gradient(135deg, rgba(56, 189, 248, 0.1), rgba(168, 85, 247, 0.1));
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border: 1px solid rgba(56, 189, 248, 0.3);
    color: var(--text-primary);
    border-radius: var(--border-radius-pill);
    padding: 0 18px;
    font-family: inherit;
    font-size: 0.85rem;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition-m3);
    white-space: nowrap;
    box-shadow: 0 4px 15px rgba(56, 189, 248, 0.15);
    outline: none;
}

.thinking-toggle-btn:hover {
    background: linear-gradient(135deg, rgba(56, 189, 248, 0.2), rgba(168, 85, 247, 0.2));
    color: #ffffff;
    border-color: rgba(56, 189, 248, 0.6);
    box-shadow: 0 6px 20px rgba(56, 189, 248, 0.25);
    transform: translateY(-1px);
}

.thinking-toggle-btn:focus {
    border-color: var(--accent-color);
    box-shadow: 0 0 10px var(--accent-glow);
}

.thinking-toggle-btn:active {
    transform: translateY(0);
    box-shadow: 0 2px 10px rgba(56, 189, 248, 0.15);
}

.thinking-toggle-btn.active {
    background: linear-gradient(135deg, rgba(56, 189, 248, 0.2), rgba(14, 165, 233, 0.2));
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-color: rgba(56, 189, 248, 0.5);
    color: #38bdf8;
    box-shadow: 0 4px 15px rgba(56, 189, 248, 0.25);
}

.thinking-toggle-btn.active:hover {
    background: linear-gradient(135deg, rgba(56, 189, 248, 0.3), rgba(14, 165, 233, 0.3));
    border-color: rgba(56, 189, 248, 0.75);
    color: #38bdf8;
    box-shadow: 0 6px 20px rgba(56, 189, 248, 0.35);
    transform: translateY(-1px);
}

.thinking-icon {
    flex-shrink: 0;
    opacity: 0.8;
}

.thinking-toggle-btn.active .thinking-icon {
    color: #38bdf8;
}