/**
 * KB Assistant - Стилове
 * Цветова гама с CSS променливи за лесна персонализация
 */

/* ========================================
   CSS Променливи за цветове
   ======================================== */

:root {
    /* Основни цветове на асистента
    --kb-primary-color: #48b7a2;
    --kb-primary-dark: #3a9688; */
    --kb-primary-color: #f59e0b;
    --kb-primary-dark: #d97706;
    --kb-primary-light: #5cc9b3;

    /* Акцентни цветове */
    --kb-accent-color: #48b7a2;
    --kb-accent-hover: #3a9688;

    /* Фонови цветове */
    --kb-bg-light: #2d3748;
    --kb-bg-white: #1a202c;
    --kb-bg-gray: #2d3748;

    /* Текстови цветове */
    --kb-text-primary: #2d3748;
    --kb-text-secondary: #cbd5e0;
    --kb-text-light: #a0aec0;

    /* Граници */
    --kb-border-color: #4a5568;
    --kb-border-light: #edf2f7;

    /* Сенки */
    --kb-shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.08);
    --kb-shadow-md: 0 4px 12px rgba(72, 183, 162, 0.3);
    --kb-shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.12);

    /* Scrollbar */
    --kb-scrollbar-thumb: #cbd5e0;
    --kb-scrollbar-thumb-hover: #a0aec0;
}

/* ========================================
   FAB Button (Floating Action Button)
   ======================================== */

.kb-fab {
    position: fixed;
    bottom: 10px;
    right: 10px;
    width: 60px;
    height: 60px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--kb-primary-color) 0%, var(--kb-primary-dark) 100%);
    color: white;
    font-size: 28px;
    border: none;
    cursor: pointer;
    box-shadow: var(--kb-shadow-md);
    z-index: 9998;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    display: flex;
    align-items: center;
    justify-content: center;
}

.kb-fab:hover {
    transform: scale(1.1);
    box-shadow: 0 6px 20px rgba(72, 183, 162, 0.6);
}

.kb-fab:active {
    transform: scale(0.95);
}

.kb-fab-hidden {
    opacity: 0;
    pointer-events: none;
    transform: scale(0);
}

/* ========================================
   Chat Container
   ======================================== */
.kb-assistant-container {
    position: fixed;
    bottom: 15px;
    right: 15px;
    width: 380px;
    max-width: calc(100vw - 48px);
    height: 600px;
    max-height: calc(100vh - 100px);
    background: var(--kb-bg-white);
    border-radius: 16px;
    border: 5px solid var(--kb-primary-color);
    box-shadow: var(--kb-shadow-lg);
    z-index: 9999;
    display: flex;
    flex-direction: column;
    overflow: hidden;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    transform-origin: bottom right;
}

.kb-assistant-container.kb-hidden {
    opacity: 0;
    pointer-events: none;
    transform: scale(0.8) translateY(20px);
}

/* ========================================
   Header
   ======================================== */

.kb-header {
    background: linear-gradient(135deg, var(--kb-primary-color) 0%, var(--kb-primary-dark) 100%);
    color: white;
    padding: 10px 20px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-shrink: 0;
    border-bottom: 1px solid black;
}

.kb-header-title {
    display: flex;
    align-items: center;
    gap: 10px;
    font-weight: 600;
    font-size: 16px;
}

.kb-icon {
    font-size: 24px;
}

.kb-close-btn {
    background: rgba(255, 255, 255, 0.2);
    border: none;
    color: white;
    width: 32px;
    height: 32px;
    border-radius: 50%;
    font-size: 24px;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: background 0.2s;
    line-height: 1;
}

.kb-close-btn:hover {
    background: rgba(255, 255, 255, 0.3);
}

.kb-reload-btn {
    background: rgba(255, 255, 255, 0.2);
    border: none;
    color: white;
    width: 32px;
    height: 32px;
    border-radius: 50%;
    font-size: 18px;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: background 0.2s;
    line-height: 1;
}

.kb-reload-btn:hover {
    background: rgba(255, 255, 255, 0.3);
}

.kb-spin {
    animation: kbSpin 1s linear infinite;
}

@keyframes kbSpin {
    from {
        transform: rotate(0deg);
    }

    to {
        transform: rotate(360deg);
    }
}

/* ========================================
   Chat Messages
   ======================================== */

.kb-chat-messages {
    flex: 1;
    overflow-y: auto;
    padding: 16px;
    display: flex;
    flex-direction: column;
    gap: 12px;
    background: var(--kb-bg-light);
    overscroll-behavior: contain;
}

.kb-chat-messages::-webkit-scrollbar {
    width: 6px;
}

.kb-chat-messages::-webkit-scrollbar-track {
    background: transparent;
}

.kb-chat-messages::-webkit-scrollbar-thumb {
    background: var(--kb-scrollbar-thumb);
    border-radius: 3px;
}

.kb-chat-messages::-webkit-scrollbar-thumb:hover {
    background: var(--kb-scrollbar-thumb-hover);
}

/* ========================================
   Messages
   ======================================== */

.kb-message {
    display: flex;
    gap: 10px;
    animation: messageSlideIn 0.3s ease-out;
}

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

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

.kb-message-icon {
    width: 32px;
    height: 32px;
    border-radius: 50%;
    background: var(--kb-bg-light);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 18px;
    flex-shrink: 0;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}

.kb-message-content {
    flex: 1;
    background: var(--kb-border-color);
    padding: 12px 16px;
    border-radius: 12px;
    box-shadow: var(--kb-shadow-sm);
    line-height: 1.5;
    font-size: 14px;
    color: #e2e8f0;
}

.kb-message-user .kb-message-content {
    background: linear-gradient(135deg, var(--kb-primary-color) 0%, var(--kb-primary-dark) 100%);
    color: #e2e8f0;
}

.kb-message-user {
    flex-direction: row-reverse;
}

/* ========================================
   Answer Components
   ======================================== */

.kb-answer {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.kb-answer-text {
    line-height: 1.6;
}

.kb-answer-location {
    font-size: 12px;
    color: var(--kb-text-secondary);
    padding: 6px 10px;
    background: var(--kb-bg-gray);
    border-radius: 6px;
    border-left: 3px solid var(--kb-accent-color);
}

.kb-show-me-btn {
    background: linear-gradient(135deg, var(--kb-primary-color) 0%, var(--kb-primary-dark) 100%);
    color: white;
    border: none;
    padding: 8px 16px;
    border-radius: 8px;
    font-size: 13px;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.2s;
    align-self: flex-start;
}

.kb-show-me-btn:hover {
    transform: translateX(4px);
    box-shadow: var(--kb-shadow-md);
}

/* ========================================
   Related Topics
   ======================================== */

.kb-related {
    margin-top: 8px;
    padding-top: 10px;
    border-top: 1px solid var(--kb-border-color);
}

.kb-related-title {
    font-size: 12px;
    color: var(--kb-text-secondary);
    margin-bottom: 6px;
    font-weight: 500;
}

.kb-related-items {
    display: flex;
    flex-wrap: wrap;
    gap: 6px;
}

.kb-related-item {
    font-size: 11px;
    padding: 4px 10px;
    background: var(--kb-bg-light);
    border-radius: 12px;
    color: var(--kb-text-secondary);
    cursor: pointer;
    transition: all 0.2s;
}

.kb-related-item:hover {
    background: var(--kb-border-color);
    color: var(--kb-text-primary);
}

/* ========================================
   Additional Results
   ======================================== */

.kb-additional-results {
    margin-top: 0px;
}

.kb-additional-title {
    font-size: 11px;
    color: var(--kb-primary-color);
    margin-bottom: 3px;
    font-weight: 500;
}

.kb-additional-item {
    font-size: 12px;
    padding: 2px 4px;
    background: var(--kb-bg-gray);
    border-radius: 6px;
    margin-bottom: 2px;
    cursor: pointer;
    transition: all 0.2s;
    border-left: 2px solid transparent;
    line-height: 1.2;
    color: #e2e8f0;
}

.kb-additional-item:hover {
    background: var(--kb-border-color) !important;
    border-left-color: var(--kb-primary-dark) !important;
    color: white !important;
}

/* ========================================
   Loading Animation
   ======================================== */

.kb-loading-dots {
    display: flex;
    gap: 4px;
    align-items: center;
}

.kb-loading-dots span {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: var(--kb-scrollbar-thumb);
    animation: loadingBounce 1.4s infinite ease-in-out both;
}

.kb-loading-dots span:nth-child(1) {
    animation-delay: -0.32s;
}

.kb-loading-dots span:nth-child(2) {
    animation-delay: -0.16s;
}

@keyframes loadingBounce {

    0%,
    80%,
    100% {
        transform: scale(0);
        opacity: 0.5;
    }

    40% {
        transform: scale(1);
        opacity: 1;
    }
}

/* ========================================
   Suggestions
   ======================================== */

.kb-suggestions {
    padding: 6px 12px 8px 12px;
    background: #1a202c;
    border-top: 1px solid var(--kb-border-color);
    flex-shrink: 0;
    max-height: 250px;
    overflow-y: auto;
    overscroll-behavior: contain;
}

.kb-suggestions-title {
    font-size: 11px;
    color: var(--kb-primary-color);
    margin-bottom: 4px;
    font-weight: 500;
}

.kb-suggestions-list {
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.kb-suggestion-item {
    font-size: 12px;
    padding: 6px 10px;
    background: var(--kb-bg-gray);
    border-radius: 6px;
    cursor: pointer;
    transition: all 0.2s;
    border-left: 2px solid transparent;
    line-height: 1.3;
    color: #e2e8f0;
}

.kb-suggestion-item:hover {
    background: var(--kb-border-color);
    border-left-color: var(--kb-accent-color);
    transform: translateX(3px);
}

/* ========================================
   Input Container
   ======================================== */

.kb-input-container {
    display: flex;
    gap: 8px;
    padding: 16px;
    background: #1a202c;
    border-top: 1px solid var(--kb-border-color);
    flex-shrink: 0;
}

.kb-input {
    flex: 1;
    min-width: 0;
    /* Allows flex item to shrink below content size */
    background: var(--kb-bg-light);
    color: #e2e8f0;
    padding: 10px 14px;
    border: 2px solid var(--kb-border-color);
    border-radius: 10px;
    font-size: 14px;
    outline: none;
    transition: all 0.2s;
}

.kb-input::placeholder {
    color: #718096;
}


.kb-input:focus {
    border-color: var(--kb-accent-color);
    box-shadow: 0 0 0 3px rgba(72, 183, 162, 0.1);
}

.kb-send-btn {
    width: 40px;
    height: 40px;
    border-radius: 10px;
    background: linear-gradient(135deg, var(--kb-primary-color) 0%, var(--kb-primary-dark) 100%);
    color: white;
    border: none;
    font-size: 20px;
    cursor: pointer;
    transition: all 0.2s;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

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

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

/* ========================================
   Highlight Effect
   ======================================== */

.kb-highlight {
    animation: kbPulse 1s ease-in-out 3;
    outline: 3px solid var(--kb-accent-color) !important;
    outline-offset: 4px;
    border-radius: 4px;
}

@keyframes kbPulse {

    0%,
    100% {
        outline-color: var(--kb-accent-color);
        outline-width: 3px;
    }

    50% {
        outline-color: var(--kb-accent-hover);
        outline-width: 5px;
    }
}

/* Компактен padding за допълнителни резултати */
.kb-compact-padding {
    padding: 6px 10px !important;
}

/* ========================================
   Responsive Design
   ======================================== */

@media (max-width: 480px) {
    .kb-assistant-container {
        width: calc(100vw - 32px);
        height: calc(100vh - 80px);
        bottom: 16px;
        right: 16px;
    }

    .kb-fab {
        bottom: 10px;
        right: 10px;
        width: 60px;
        height: 60px;
        font-size: 20px;
    }
}

.kb-history-item:hover {
    background: var(--kb-primary-color) !important;
    border-left-color: var(--kb-primary-dark) !important;
    color: white !important;
}

/* ========================================
   Pointer Image
   ======================================== */

.kb-pointer-image {
    position: fixed;
    z-index: 10000;
    width: 100px;
    max-width: none;
    transform-origin: top right;
    height: auto;
    pointer-events: auto;
    cursor: pointer;
    transition: opacity 0.3s ease;
    filter: drop-shadow(0 0 2px black) drop-shadow(2px 4px 6px rgba(0, 0, 0, 0.5));
    animation: kbPopIn 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275) forwards;
}

@keyframes kbPopIn {
    from {
        opacity: 0;
        transform: translateX(-100%) scale(0.5) translateX(20px);
    }

    to {
        opacity: 1;
        transform: translateX(-100%) scale(1) translateX(0);
    }
}

/* Clear Button */
.kb-clear-btn {
    width: 40px;
    height: 40px;
    border-radius: 10px;
    background: linear-gradient(135deg, var(--kb-primary-color) 0%, var(--kb-primary-dark) 100%);
    color: white;
    border: 2px solid var(--kb-border-color);
    font-size: 20px;
    cursor: pointer;
    transition: all 0.2s;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.kb-clear-btn:hover {
    background: var(--kb-bg-gray);
    color: var(--kb-primary-color);
    transform: scale(1.05);
}

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

/* History Items Styling */
.kb-history-item {
    font-size: 12px;
    padding: 2px 4px !important;
    background: var(--kb-bg-gray) !important;
    border-radius: 6px;
    margin-bottom: 2px;
    cursor: pointer;
    transition: all 0.2s;
    border-left: 2px solid transparent;
    line-height: 1.2;
    color: var(--kb-text-primary) !important;
    border: none;
    width: 100%;
    text-align: left;
    display: block;
    font-family: inherit;
}

/* Full screen suggestions mode */
.kb-assistant-container.kb-full-mode .kb-chat-messages {
    display: none;
}

.kb-assistant-container.kb-full-mode .kb-suggestions {
    flex: 1;
    max-height: none;
    overflow-y: auto;
    border-top: none;
}