/* ===== input.css ===== */
/* Input container, content menu popover, dark mode input enhancement */

/* ===== Input Container ===== */
.input-container {
    padding: var(--space-2xl) var(--space-2xl) var(--space-lg);
    background: var(--color-bg-primary) !important;
    border-top: 0px solid var(--color-border) !important;
    display: flex;
    flex-direction: column;
    /*transition: transform var(--transition-base), opacity var(--transition-base);*/
    transform: translateY(0);
    opacity: 1;
}

.input-container.hidden {
    transform: translateY(100%);
    opacity: 0;
    pointer-events: none;
}

.input-status-row {
    max-width: 700px;
    width: 100%;
    margin: 8px auto 0;
    order: 2;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    min-height: 18px;
}

.lesson-context-status {
    min-width: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 6px;
    color: var(--color-text-secondary);
    font-size: 11px;
    font-weight: 600;
    letter-spacing: 0.02em;
    line-height: 1.3;
}

.lesson-context-status svg {
    flex: 0 0 auto;
    color: var(--color-accent);
}

.lesson-context-status[data-scope="off"] {
    opacity: 0.68;
}

.input-status-divider {
    width: 1px;
    height: 12px;
    flex: 0 0 auto;
    background: var(--color-border);
}

.ai-provider-status {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    min-width: 0;
    margin: -2px -5px;
    padding: 2px 5px;
    border: 0;
    border-radius: 999px;
    background: transparent;
    color: var(--color-text-secondary);
    font-family: var(--font-body);
    font-size: 11px;
    font-weight: 600;
    letter-spacing: 0.02em;
    line-height: 1.3;
    cursor: pointer;
    transition: color var(--transition-fast), background-color var(--transition-fast);
}

.ai-provider-status:hover {
    background: var(--color-bg-hover);
    color: var(--color-text-primary);
}

.ai-provider-status:focus-visible {
    outline: 2px solid var(--color-accent);
    outline-offset: 2px;
}

.ai-provider-dot {
    width: 7px;
    height: 7px;
    flex: 0 0 7px;
    border-radius: 50%;
    background: var(--color-accent);
    box-shadow: 0 0 0 2px var(--color-bg-primary);
}

.ai-provider-status[data-provider="anthropic"] .ai-provider-dot { background: #d97757; }
.ai-provider-status[data-provider="openai"] .ai-provider-dot { background: #10a37f; }
.ai-provider-status[data-provider="gemini"] .ai-provider-dot { background: #7c6fe4; }
.ai-provider-status[data-provider="xai"] .ai-provider-dot { background: #151515; }
.ai-provider-status[data-provider="deepseek"] .ai-provider-dot { background: #4d6bfe; }

.ai-provider-status[data-connected="false"] .ai-provider-dot {
    opacity: 0.45;
}

.ai-provider-label {
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

@media (max-width: 640px) {
    .input-status-row {
        flex-wrap: wrap;
        gap: 4px 7px;
    }

    .input-status-divider {
        display: none;
    }

    .lesson-context-status,
    .ai-provider-status {
        font-size: 10px;
    }
}

.input-wrapper {
    max-width: 700px;
    width: 100%;
    margin: 0 auto;
    order: 1;
    position: relative;
    background-color: var(--input-bg);
    border-radius: 40px;
    box-shadow: 0 2px 12px rgba(0, 0, 0, 0.08),
                0 1px 3px rgba(0, 0, 0, 0.06);
    border: 1px solid var(--color-border);
    padding: 8px;
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    transition: all var(--transition-base);
}

.input-wrapper:focus-within {
    border-color: var(--color-accent);
    box-shadow: 0 4px 24px rgba(0, 0, 0, 0.12),
                0 0 0 3px var(--color-accent-light);
}

#userInput {
    flex: 1;
    padding: 12px 16px;
    font-family: var(--font-body);
    font-size: 15px;
    line-height: 1.6;
    border: none;
    background-color: transparent;
    color: var(--color-text-primary);
    resize: none;
    min-height: 24px;
    max-height: 200px;
    transition: all var(--transition-base);
}

#userInput:focus {
    outline: none;
}

#userInput::placeholder {
    color: var(--color-text-tertiary);
}

/* Scrollbar styling for textarea */
#userInput::-webkit-scrollbar {
    width: 6px;
}

#userInput::-webkit-scrollbar-track {
    background: var(--color-bg-tertiary);
    border-radius: 3px;
}

#userInput::-webkit-scrollbar-thumb {
    background: var(--scrollbar);
    border-radius: 3px;
}

#userInput::-webkit-scrollbar-thumb:hover {
    background: var(--scrollbar-hover);
}

.add-content-btn {
    width: 40px;
    height: 40px;
    min-width: 40px;
    min-height: 40px;
    border-radius: 20px;
    background-color: var(--color-accent);
    color: white;
    border: none;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: all var(--transition-fast);
    flex-shrink: 0;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.15);
    position: relative;
}

.add-content-btn:hover:not(:disabled) {
    background-color: var(--color-accent-hover);
    transform: scale(1.05) rotate(90deg);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.2);
}

.add-content-btn:active:not(:disabled) {
    transform: scale(0.95) rotate(90deg);
}

.add-content-btn.active {
    transform: rotate(45deg);
    background-color: var(--color-accent-hover);
}

.add-content-btn:disabled {
    opacity: 0.4;
    cursor: not-allowed;
    background-color: var(--color-text-tertiary);
}

.add-content-btn svg {
    transition: transform var(--transition-fast);
}


/* ===== Premium Input Enhancement - Dark Mode ===== */
[data-theme="dark"] .input-wrapper {
    background-color: var(--input-bg);
    box-shadow: 0 2px 12px rgba(0, 0, 0, 0.4),
                0 1px 3px rgba(0, 0, 0, 0.3);
}

[data-theme="dark"] .input-wrapper:focus-within {
    box-shadow: 0 4px 24px rgba(0, 0, 0, 0.5),
                0 0 0 3px var(--color-accent-light);
}

/* Input container gradient for dark mode */
[data-theme="dark"] .input-container {
    background: linear-gradient(to top, var(--color-bg-secondary) 0%, var(--color-bg-primary) 100%);
}

/* Subtle animation on focus */
@keyframes input-focus-pulse {
    0% { box-shadow: 0 4px 24px rgba(0, 0, 0, 0.12), 0 0 0 3px var(--color-accent-light); }
    50% { box-shadow: 0 4px 28px rgba(0, 0, 0, 0.16), 0 0 0 4px var(--color-accent-light); }
    100% { box-shadow: 0 4px 24px rgba(0, 0, 0, 0.12), 0 0 0 3px var(--color-accent-light); }
}

.input-wrapper:focus-within {
    animation: input-focus-pulse 2s ease-in-out infinite;
}

/* Send button with icon sizing */
.send-btn svg {
    width: 20px;
    height: 20px;
    transition: transform var(--transition-fast);
}

.send-btn:hover:not(:disabled) svg {
    transform: translateX(2px);
}

/* Placeholder enhancement */
#userInput::placeholder {
    font-weight: 400;
    opacity: 0.6;
}

/* ===== Content Menu Popover ===== */
.content-menu {
    position: absolute;
    bottom: calc(100% + 12px);
    right: 8px; /* Align with button (accounting for wrapper padding) */
    min-width: 280px;
    background-color: var(--color-bg-primary);
    border-radius: 16px;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.12),
                0 2px 8px rgba(0, 0, 0, 0.08);
    border: 1px solid var(--color-border);
    padding: 8px;
    z-index: 1000;
    opacity: 0;
    transform: translateY(10px) scale(0.95);
    transition: all var(--transition-fast);
    pointer-events: none;
}

.content-menu:not(.hidden) {
    opacity: 1;
    transform: translateY(0) scale(1);
    pointer-events: all;
}

[data-theme="dark"] .content-menu {
    background-color: var(--color-bg-secondary);
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.4),
                0 2px 8px rgba(0, 0, 0, 0.3);
}

.content-menu-items {
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.content-menu-item {
    display: flex;
    align-items: center;
    gap: var(--space-md);
    padding: 12px 14px;
    background-color: transparent;
    border: none;
    border-radius: 10px;
    cursor: pointer;
    transition: all var(--transition-fast);
    text-align: left;
    width: 100%;
}

.content-menu-item:hover {
    background-color: var(--color-bg-hover);
}

.content-menu-item:active {
    transform: scale(0.98);
}

.menu-item-icon {
    width: 36px;
    height: 36px;
    min-width: 36px;
    min-height: 36px;
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
}

.menu-item-content {
    flex: 1;
}

.menu-item-label {
    font-size: 15px;
    font-weight: 600;
    color: var(--color-text-primary);
    margin-bottom: 2px;
}

.menu-item-hint {
    font-size: 13px;
    color: var(--color-text-secondary);
}

/* Arrow pointer for menu */
.content-menu::after {
    content: '';
    position: absolute;
    bottom: -8px;
    right: 20px; /* Point at button center (40px button width / 2) */
    width: 16px;
    height: 16px;
    background-color: var(--color-bg-primary);
    border-right: 1px solid var(--color-border);
    border-bottom: 1px solid var(--color-border);
    transform: rotate(45deg);
}

[data-theme="dark"] .content-menu::after {
    background-color: var(--color-bg-secondary);
}

/* Animation for menu items */
.content-menu:not(.hidden) .content-menu-item {
    animation: slideInMenuItem 0.2s ease-out backwards;
}

.content-menu:not(.hidden) .content-menu-item:nth-child(1) { animation-delay: 0.05s; }
.content-menu:not(.hidden) .content-menu-item:nth-child(2) { animation-delay: 0.08s; }
.content-menu:not(.hidden) .content-menu-item:nth-child(3) { animation-delay: 0.11s; }
.content-menu:not(.hidden) .content-menu-item:nth-child(4) { animation-delay: 0.14s; }
.content-menu:not(.hidden) .content-menu-item:nth-child(5) { animation-delay: 0.17s; }
.content-menu:not(.hidden) .content-menu-item:nth-child(6) { animation-delay: 0.20s; }
.content-menu:not(.hidden) .content-menu-item:nth-child(7) { animation-delay: 0.23s; }
.content-menu:not(.hidden) .content-menu-item:nth-child(8) { animation-delay: 0.26s; }

@keyframes slideInMenuItem {
    from {
        opacity: 0;
        transform: translateX(10px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

/* Input wrapper needs relative positioning for absolute menu */
.input-wrapper {
    position: relative;
}