/**
 * MegaPrice AI - Frontend Styles
 * Ladené s MegaPrice témou v6
 */

:root {
    --mpai-primary: #2563eb;
    --mpai-primary-dark: #1d4ed8;
    --mpai-primary-light: #3b82f6;
    --mpai-success: #16a34a;
    --mpai-warning: #f59e0b;
    --mpai-danger: #ef4444;
    --mpai-text: #1f2937;
    --mpai-text-light: #6b7280;
    --mpai-border: #e5e7eb;
    --mpai-bg: #ffffff;
    --mpai-bg-light: #f9fafb;
    --mpai-radius: 12px;
    --mpai-shadow: 0 4px 20px rgba(0, 0, 0, 0.1);
}

/* =================================================================
   CHAT WIDGET
   ================================================================= */

.mpai-chat-widget {
    position: fixed;
    bottom: 20px;
    right: 20px;
    z-index: 9999;
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
}

.mpai-chat-widget__toggle {
    width: 60px;
    height: 60px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--mpai-primary) 0%, var(--mpai-primary-dark) 100%);
    border: none;
    box-shadow: 0 4px 20px rgba(37, 99, 235, 0.4);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    transition: all 0.3s ease;
}

.mpai-chat-widget__toggle:hover {
    transform: scale(1.05);
    box-shadow: 0 6px 25px rgba(37, 99, 235, 0.5);
}

.mpai-chat-widget__badge {
    position: absolute;
    top: -4px;
    right: -4px;
    width: 20px;
    height: 20px;
    background: var(--mpai-danger);
    color: white;
    border-radius: 50%;
    font-size: 11px;
    font-weight: 700;
    display: flex;
    align-items: center;
    justify-content: center;
}

.mpai-chat-widget__panel {
    position: absolute;
    bottom: 70px;
    right: 0;
    width: 380px;
    max-width: calc(100vw - 40px);
    height: 520px;
    max-height: calc(100vh - 120px);
    background: var(--mpai-bg);
    border-radius: var(--mpai-radius);
    box-shadow: var(--mpai-shadow);
    display: flex;
    flex-direction: column;
    overflow: hidden;
    animation: mpai-slide-up 0.3s ease;
}

@keyframes mpai-slide-up {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.mpai-chat-widget__header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 16px;
    background: linear-gradient(135deg, var(--mpai-primary) 0%, var(--mpai-primary-dark) 100%);
    color: white;
}

.mpai-chat-widget__header-info {
    display: flex;
    align-items: center;
    gap: 12px;
}

.mpai-chat-widget__avatar {
    width: 40px;
    height: 40px;
    background: rgba(255, 255, 255, 0.2);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 20px;
}

.mpai-chat-widget__header-info strong {
    display: block;
    font-size: 15px;
}

.mpai-chat-widget__header-info small {
    display: block;
    font-size: 12px;
    opacity: 0.8;
}

.mpai-chat-widget__close {
    background: rgba(255, 255, 255, 0.1);
    border: none;
    border-radius: 50%;
    width: 32px;
    height: 32px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    cursor: pointer;
    transition: background 0.2s;
}

.mpai-chat-widget__close:hover {
    background: rgba(255, 255, 255, 0.2);
}

.mpai-chat-widget__messages {
    flex: 1;
    overflow-y: auto;
    padding: 16px;
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.mpai-chat-widget__message {
    display: flex;
    gap: 8px;
    max-width: 85%;
}

.mpai-chat-widget__message--bot {
    align-self: flex-start;
}

.mpai-chat-widget__message--user {
    align-self: flex-end;
    flex-direction: row-reverse;
}

.mpai-chat-widget__message-content {
    padding: 12px 16px;
    border-radius: 16px;
    font-size: 14px;
    line-height: 1.5;
}

.mpai-chat-widget__message--bot .mpai-chat-widget__message-content {
    background: var(--mpai-bg-light);
    color: var(--mpai-text);
    border-bottom-left-radius: 4px;
}

.mpai-chat-widget__message--user .mpai-chat-widget__message-content {
    background: var(--mpai-primary);
    color: white;
    border-bottom-right-radius: 4px;
}

.mpai-chat-widget__suggestions {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-top: 4px;
}

.mpai-chat-widget__suggestion {
    padding: 8px 14px;
    background: white;
    border: 1px solid var(--mpai-border);
    border-radius: 20px;
    font-size: 13px;
    color: var(--mpai-primary);
    cursor: pointer;
    transition: all 0.2s;
}

.mpai-chat-widget__suggestion:hover {
    background: var(--mpai-primary);
    color: white;
    border-color: var(--mpai-primary);
}

.mpai-chat-widget__input-wrap {
    display: flex;
    gap: 8px;
    padding: 12px 16px;
    border-top: 1px solid var(--mpai-border);
}

.mpai-chat-widget__input {
    flex: 1;
    padding: 12px 16px;
    border: 1px solid var(--mpai-border);
    border-radius: 24px;
    font-size: 14px;
    outline: none;
    transition: border-color 0.2s;
}

.mpai-chat-widget__input:focus {
    border-color: var(--mpai-primary);
}

.mpai-chat-widget__send {
    width: 44px;
    height: 44px;
    background: var(--mpai-primary);
    border: none;
    border-radius: 50%;
    color: white;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: background 0.2s;
}

.mpai-chat-widget__send:hover {
    background: var(--mpai-primary-dark);
}

.mpai-chat-widget__send:disabled {
    background: var(--mpai-border);
    cursor: not-allowed;
}

.mpai-chat-widget__footer {
    padding: 8px;
    text-align: center;
    font-size: 11px;
    color: var(--mpai-text-light);
    background: var(--mpai-bg-light);
}

.mpai-chat-widget__typing {
    display: flex;
    gap: 4px;
    padding: 12px 16px;
    background: var(--mpai-bg-light);
    border-radius: 16px;
    width: fit-content;
}

.mpai-chat-widget__typing span {
    width: 8px;
    height: 8px;
    background: var(--mpai-text-light);
    border-radius: 50%;
    animation: mpai-typing 1.4s infinite;
}

.mpai-chat-widget__typing span:nth-child(2) { animation-delay: 0.2s; }
.mpai-chat-widget__typing span:nth-child(3) { animation-delay: 0.4s; }

@keyframes mpai-typing {
    0%, 60%, 100% { transform: translateY(0); }
    30% { transform: translateY(-4px); }
}

/* =================================================================
   FAQ SECTION
   ================================================================= */

.mpai-faq {
    background: var(--mpai-bg);
    border-radius: var(--mpai-radius);
    padding: 24px;
    margin: 24px 0;
    border: 1px solid var(--mpai-border);
}

.mpai-faq__title {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 18px;
    font-weight: 700;
    color: var(--mpai-text);
    margin: 0 0 20px;
}

.mpai-faq__title svg {
    color: var(--mpai-primary);
}

.mpai-faq__list {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.mpai-faq__item {
    border: 1px solid var(--mpai-border);
    border-radius: 8px;
    overflow: hidden;
}

.mpai-faq__question {
    width: 100%;
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 14px 16px;
    background: var(--mpai-bg-light);
    border: none;
    font-size: 14px;
    font-weight: 600;
    color: var(--mpai-text);
    cursor: pointer;
    text-align: left;
    transition: background 0.2s;
}

.mpai-faq__question:hover {
    background: #f3f4f6;
}

.mpai-faq__icon {
    flex-shrink: 0;
    transition: transform 0.3s;
}

.mpai-faq__item.is-open .mpai-faq__icon {
    transform: rotate(180deg);
}

.mpai-faq__answer {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s ease;
}

.mpai-faq__item.is-open .mpai-faq__answer {
    max-height: 200px;
}

.mpai-faq__answer div {
    padding: 14px 16px;
    font-size: 14px;
    line-height: 1.6;
    color: var(--mpai-text-light);
}

/* =================================================================
   WHY BUY SECTION
   ================================================================= */

.mpai-why-buy {
    background: var(--mpai-bg);
    border-radius: var(--mpai-radius);
    padding: 24px;
    margin: 24px 0;
    border: 1px solid var(--mpai-border);
}

.mpai-why-buy__title {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 18px;
    font-weight: 700;
    color: var(--mpai-text);
    margin: 0 0 20px;
}

.mpai-why-buy__title svg {
    color: var(--mpai-primary);
}

.mpai-why-buy__grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 16px;
}

.mpai-why-buy__item {
    display: flex;
    gap: 14px;
    padding: 16px;
    background: var(--mpai-bg-light);
    border-radius: 10px;
    transition: transform 0.2s, box-shadow 0.2s;
}

.mpai-why-buy__item:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.08);
}

.mpai-why-buy__icon {
    width: 44px;
    height: 44px;
    background: linear-gradient(135deg, var(--mpai-primary) 0%, var(--mpai-primary-dark) 100%);
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    color: white;
}

.mpai-why-buy__content {
    flex: 1;
}

.mpai-why-buy__item-title {
    font-size: 15px;
    font-weight: 600;
    color: var(--mpai-text);
    margin: 0 0 4px;
}

.mpai-why-buy__item-desc {
    font-size: 13px;
    color: var(--mpai-text-light);
    margin: 0;
    line-height: 1.5;
}

/* =================================================================
   ALTERNATIVES SECTION
   ================================================================= */

.mpai-alternatives-section {
    background: var(--mpai-bg);
    border-radius: var(--mpai-radius);
    padding: 24px;
    margin: 24px 0;
    border: 1px solid var(--mpai-border);
}

.mpai-alternatives-section__header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    margin-bottom: 16px;
    flex-wrap: wrap;
}

.mpai-section-title {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 18px;
    font-weight: 700;
    color: var(--mpai-text);
    margin: 0;
}

.mpai-section-title svg {
    color: var(--mpai-primary);
}

.mpai-btn {
    padding: 10px 18px;
    border-radius: 8px;
    font-size: 14px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s;
    border: none;
}

.mpai-btn--primary {
    background: var(--mpai-primary);
    color: white;
}

.mpai-btn--primary:hover {
    background: var(--mpai-primary-dark);
}

.mpai-btn--outline {
    background: white;
    color: var(--mpai-primary);
    border: 2px solid var(--mpai-primary);
}

.mpai-btn--outline:hover {
    background: var(--mpai-primary);
    color: white;
}

.mpai-alternatives-section__hint {
    color: var(--mpai-text-light);
    font-size: 14px;
    text-align: center;
    padding: 20px;
}

.mpai-alternatives {
    margin-top: 16px;
}

.mpai-alternatives__summary {
    font-size: 14px;
    color: var(--mpai-text-light);
    margin-bottom: 16px;
}

.mpai-alternatives__grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 16px;
}

.mpai-alternatives__item {
    background: var(--mpai-bg-light);
    border-radius: 10px;
    padding: 16px;
    display: flex;
    flex-direction: column;
    transition: transform 0.2s, box-shadow 0.2s;
}

.mpai-alternatives__item:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 20px rgba(0, 0, 0, 0.1);
}

.mpai-alternatives__badge {
    display: flex;
    align-items: center;
    gap: 6px;
    font-size: 11px;
    font-weight: 600;
    text-transform: uppercase;
    margin-bottom: 12px;
}

.mpai-alternatives__item--budget .mpai-alternatives__badge { color: var(--mpai-success); }
.mpai-alternatives__item--similar .mpai-alternatives__badge { color: var(--mpai-primary); }
.mpai-alternatives__item--premium .mpai-alternatives__badge { color: var(--mpai-warning); }
.mpai-alternatives__item--different .mpai-alternatives__badge { color: #8b5cf6; }

.mpai-alternatives__img {
    width: 100%;
    aspect-ratio: 1;
    object-fit: contain;
    border-radius: 8px;
    background: white;
    margin-bottom: 12px;
}

.mpai-alternatives__name {
    font-size: 14px;
    font-weight: 600;
    margin: 0 0 4px;
}

.mpai-alternatives__name a {
    color: var(--mpai-text);
    text-decoration: none;
}

.mpai-alternatives__name a:hover {
    color: var(--mpai-primary);
}

.mpai-alternatives__price {
    font-size: 16px;
    font-weight: 700;
    color: var(--mpai-primary);
    margin-bottom: 8px;
}

.mpai-alternatives__reason {
    font-size: 13px;
    color: var(--mpai-text-light);
    margin: 0 0 4px;
    line-height: 1.4;
}

.mpai-alternatives__comparison {
    font-size: 12px;
    color: var(--mpai-text-light);
    margin: 0;
}

.mpai-alternatives__btn {
    display: block;
    margin-top: auto;
    padding: 10px;
    background: var(--mpai-primary);
    color: white;
    text-align: center;
    border-radius: 6px;
    font-size: 13px;
    font-weight: 600;
    text-decoration: none;
    transition: background 0.2s;
}

.mpai-alternatives__btn:hover {
    background: var(--mpai-primary-dark);
    color: white;
}

/* =================================================================
   COMPARATOR SECTION
   ================================================================= */

.mpai-comparator-section {
    background: var(--mpai-bg);
    border-radius: var(--mpai-radius);
    padding: 24px;
    margin: 24px 0;
    border: 1px solid var(--mpai-border);
}

.mpai-comparator-section__select p {
    font-size: 14px;
    color: var(--mpai-text-light);
    margin: 0 0 12px;
}

.mpai-comparator-section__products {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    gap: 12px;
}

.mpai-comparator-product {
    display: flex;
    flex-direction: column;
    align-items: center;
    padding: 12px;
    background: var(--mpai-bg-light);
    border: 2px solid transparent;
    border-radius: 10px;
    cursor: pointer;
    transition: all 0.2s;
}

.mpai-comparator-product:hover {
    border-color: var(--mpai-primary);
    background: white;
}

.mpai-comparator-product img {
    width: 80px;
    height: 80px;
    object-fit: contain;
    margin-bottom: 8px;
}

.mpai-comparator-product__name {
    font-size: 12px;
    color: var(--mpai-text);
    text-align: center;
    line-height: 1.3;
    margin-bottom: 4px;
}

.mpai-comparator-product__price {
    font-size: 14px;
    font-weight: 700;
    color: var(--mpai-primary);
}

.mpai-comparator-section__result {
    margin-top: 24px;
    padding-top: 24px;
    border-top: 1px solid var(--mpai-border);
}

.mpai-comparator-section__loading {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 12px;
    padding: 40px;
    color: var(--mpai-text-light);
}

.mpai-spinner {
    width: 24px;
    height: 24px;
    border: 3px solid var(--mpai-border);
    border-top-color: var(--mpai-primary);
    border-radius: 50%;
    animation: mpai-spin 1s linear infinite;
}

@keyframes mpai-spin {
    to { transform: rotate(360deg); }
}

/* Compare result styling */
.mpai-compare__header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 20px;
    flex-wrap: wrap;
    gap: 12px;
}

.mpai-compare__winner-badge {
    background: linear-gradient(135deg, var(--mpai-warning) 0%, #d97706 100%);
    color: white;
    padding: 8px 16px;
    border-radius: 20px;
    font-size: 14px;
    font-weight: 600;
}

.mpai-compare__products {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 16px;
    margin-bottom: 24px;
}

.mpai-compare__product {
    position: relative;
    background: var(--mpai-bg-light);
    border-radius: 10px;
    padding: 20px;
    text-align: center;
}

.mpai-compare__product--winner {
    border: 2px solid var(--mpai-warning);
}

.mpai-compare__product-badge {
    position: absolute;
    top: -10px;
    left: 50%;
    transform: translateX(-50%);
    background: var(--mpai-warning);
    color: white;
    padding: 4px 12px;
    border-radius: 12px;
    font-size: 12px;
    font-weight: 600;
}

.mpai-compare__product-img {
    width: 100px;
    height: 100px;
    object-fit: contain;
    margin-bottom: 12px;
}

.mpai-compare__product-name {
    font-size: 14px;
    font-weight: 600;
    margin: 0 0 8px;
}

.mpai-compare__product-price {
    font-size: 18px;
    font-weight: 700;
    color: var(--mpai-primary);
    margin-bottom: 12px;
}

.mpai-compare__product-link {
    display: inline-block;
    padding: 8px 16px;
    background: var(--mpai-primary);
    color: white;
    border-radius: 6px;
    font-size: 13px;
    text-decoration: none;
}

.mpai-compare__table-wrap {
    overflow-x: auto;
    margin-bottom: 24px;
}

.mpai-compare__table {
    width: 100%;
    border-collapse: collapse;
    font-size: 14px;
}

.mpai-compare__table th,
.mpai-compare__table td {
    padding: 12px;
    text-align: left;
    border-bottom: 1px solid var(--mpai-border);
}

.mpai-compare__table th {
    background: var(--mpai-bg-light);
    font-weight: 600;
}

.mpai-compare__cell--winner {
    background: rgba(37, 99, 235, 0.05);
    color: var(--mpai-primary);
    font-weight: 600;
}

.mpai-compare__pros-cons {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 16px;
    margin-bottom: 24px;
}

.mpai-compare__pros-cons-item h4 {
    font-size: 14px;
    margin: 0 0 12px;
}

.mpai-compare__pros,
.mpai-compare__cons {
    margin-bottom: 12px;
}

.mpai-compare__pros ul,
.mpai-compare__cons ul {
    margin: 8px 0 0;
    padding: 0 0 0 16px;
}

.mpai-compare__pros li { color: var(--mpai-success); }
.mpai-compare__cons li { color: var(--mpai-danger); }

.mpai-compare__recommendations {
    background: var(--mpai-bg-light);
    border-radius: 10px;
    padding: 16px;
}

.mpai-compare__recommendations h4 {
    margin: 0 0 12px;
    font-size: 16px;
}

.mpai-compare__recommendations-grid {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.mpai-compare__rec-item {
    display: flex;
    gap: 8px;
    font-size: 14px;
}

.mpai-compare__rec-label {
    font-weight: 600;
    white-space: nowrap;
}

.mpai-compare__rec-item--general {
    padding-top: 8px;
    border-top: 1px solid var(--mpai-border);
    margin-top: 4px;
}

/* =================================================================
   RESPONSIVE
   ================================================================= */

@media (max-width: 768px) {
    .mpai-chat-widget__panel {
        width: 100%;
        max-width: none;
        height: 100%;
        max-height: none;
        bottom: 0;
        right: 0;
        border-radius: 0;
    }
    
    .mpai-compare__products,
    .mpai-compare__pros-cons {
        grid-template-columns: 1fr;
    }
}