/* ===== Whiteboard AI Input Bar ===== */
/* Styled to match the main input bar at input.css */

.whiteboard-ai-input-container {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    padding: var(--space-xl) var(--space-2xl);
    padding-bottom: var(--space-2xl);
    background: transparent;
    border-top: 0px solid var(--color-border);
    transition: transform var(--transition-base), opacity var(--transition-base);
    transform: translateY(0);
    opacity: 1;
    z-index: 100;
}

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

.whiteboard-ai-input-wrapper {
    max-width: 700px;
    margin: 0 auto;
    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);
    min-height: 70px !important; /* Force minimum height: 40px button + 16px padding */
}

.whiteboard-ai-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);
}

.whiteboard-ai-input {
    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;
    height: 24px ; /* Explicit initial height */
    min-height: 24px !important;
    max-height: 200px;
    transition: all var(--transition-base);
    overflow-y: auto;
}

.whiteboard-ai-input:focus {
    outline: none;
}

.whiteboard-ai-input::placeholder {
    color: var(--color-text-tertiary);
}

/* Scrollbar styling for textarea */
.whiteboard-ai-input::-webkit-scrollbar {
    width: 6px;
}

.whiteboard-ai-input::-webkit-scrollbar-track {
    background: transparent;
}

.whiteboard-ai-input::-webkit-scrollbar-thumb {
    background: var(--scrollbar);
    border-radius: 3px;
}

.whiteboard-ai-input::-webkit-scrollbar-thumb:hover {
    background: var(--scrollbar-hover);
}

.whiteboard-ai-send-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);
}

.whiteboard-ai-send-btn:hover:not(:disabled) {
    background-color: var(--color-accent-hover);
    transform: scale(1.05);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.2);
}

.whiteboard-ai-send-btn:active:not(:disabled) {
    transform: scale(0.95);
}

.whiteboard-ai-send-btn:disabled {
    opacity: 0.6;
    cursor: not-allowed;
    background-color: var(--color-text-tertiary);
}

.whiteboard-ai-send-btn svg {
    transition: transform var(--transition-fast);
}

/* Loading spinner animation */
@keyframes ai-spinner {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

.ai-loading-spinner {
    animation: ai-spinner 1s linear infinite;
}

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

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

[data-theme="dark"] .whiteboard-ai-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); }
}

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