/**
 * Kafanek Obchodnik - Chatbot Widget Styles
 *
 * Floating chat widget with customizable primary color via CSS variable.
 *
 * @package Kafanek_Obchodnik
 */

/* ── CSS Variables ────────────────────────────────────────────────── */

.ko-chatbot {
    --ko-chatbot-primary: #8B4513;
    --ko-chatbot-primary-dark: #6B3410;
    --ko-chatbot-primary-light: rgba(139, 69, 19, 0.1);
    --ko-chatbot-user-bg: #0073aa;
    --ko-chatbot-user-text: #ffffff;
    --ko-chatbot-assistant-bg: #f0f0f1;
    --ko-chatbot-assistant-text: #1d2327;
    --ko-chatbot-bg: #ffffff;
    --ko-chatbot-border: #e2e4e7;
    --ko-chatbot-text: #1d2327;
    --ko-chatbot-text-light: #757575;
    --ko-chatbot-radius: 16px;
    --ko-chatbot-shadow: 0 8px 32px rgba(0, 0, 0, 0.15);
    --ko-chatbot-z: 999999;

    position: fixed;
    z-index: var(--ko-chatbot-z);
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
    font-size: 14px;
    line-height: 1.5;
}

/* ── Positioning ──────────────────────────────────────────────────── */

.ko-chatbot--bottom-right {
    bottom: 20px;
    right: 20px;
}

.ko-chatbot--bottom-left {
    bottom: 20px;
    left: 20px;
}

/* ── Toggle Button ────────────────────────────────────────────────── */

.ko-chatbot__toggle {
    position: relative;
    width: 56px;
    height: 56px;
    border-radius: 50%;
    border: none;
    background: var(--ko-chatbot-primary);
    color: #ffffff;
    cursor: pointer;
    box-shadow: 0 4px 16px rgba(139, 69, 19, 0.35);
    transition: transform 0.2s ease, box-shadow 0.2s ease, background 0.2s ease;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 0;
    outline: none;
}

.ko-chatbot__toggle:hover {
    transform: scale(1.08);
    box-shadow: 0 6px 24px rgba(139, 69, 19, 0.45);
}

.ko-chatbot__toggle:focus-visible {
    outline: 2px solid var(--ko-chatbot-primary);
    outline-offset: 3px;
}

.ko-chatbot__toggle:active {
    transform: scale(0.96);
}

/* Toggle icon switching */
.ko-chatbot__toggle-icon--close {
    display: none;
}

.ko-chatbot--open .ko-chatbot__toggle-icon--open {
    display: none;
}

.ko-chatbot--open .ko-chatbot__toggle-icon--close {
    display: flex;
}

/* Badge (notification dot) */
.ko-chatbot__badge {
    position: absolute;
    top: -4px;
    right: -4px;
    width: 20px;
    height: 20px;
    border-radius: 50%;
    background: #d63638;
    color: #ffffff;
    font-size: 11px;
    font-weight: 700;
    display: flex;
    align-items: center;
    justify-content: center;
    border: 2px solid #ffffff;
    animation: ko-chatbot-pulse 2s ease-in-out infinite;
}

@keyframes ko-chatbot-pulse {
    0%, 100% { transform: scale(1); }
    50% { transform: scale(1.15); }
}

/* ── Chat Window ──────────────────────────────────────────────────── */

.ko-chatbot__window {
    position: absolute;
    bottom: 72px;
    width: 380px;
    height: 500px;
    max-height: calc(100vh - 120px);
    background: var(--ko-chatbot-bg);
    border-radius: var(--ko-chatbot-radius);
    box-shadow: var(--ko-chatbot-shadow);
    display: flex;
    flex-direction: column;
    overflow: hidden;
    opacity: 0;
    transform: translateY(16px) scale(0.95);
    pointer-events: none;
    transition: opacity 0.25s ease, transform 0.25s ease;
}

/* Position the window relative to the button */
.ko-chatbot--bottom-right .ko-chatbot__window {
    right: 0;
}

.ko-chatbot--bottom-left .ko-chatbot__window {
    left: 0;
}

/* Open state */
.ko-chatbot--open .ko-chatbot__window {
    opacity: 1;
    transform: translateY(0) scale(1);
    pointer-events: auto;
}

/* ── Header ───────────────────────────────────────────────────────── */

.ko-chatbot__header {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 14px 16px;
    background: var(--ko-chatbot-primary);
    color: #ffffff;
    flex-shrink: 0;
}

.ko-chatbot__header-avatar {
    width: 36px;
    height: 36px;
    flex-shrink: 0;
    display: flex;
    align-items: center;
    justify-content: center;
}

.ko-chatbot__header-info {
    flex: 1;
    min-width: 0;
}

.ko-chatbot__header-name {
    display: block;
    font-size: 15px;
    font-weight: 600;
    line-height: 1.2;
}

.ko-chatbot__header-status {
    display: flex;
    align-items: center;
    gap: 5px;
    font-size: 12px;
    opacity: 0.85;
}

.ko-chatbot__status-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: #4ade80;
    display: inline-block;
    animation: ko-chatbot-status-blink 3s ease-in-out infinite;
}

@keyframes ko-chatbot-status-blink {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.5; }
}

.ko-chatbot__close {
    width: 32px;
    height: 32px;
    border: none;
    background: rgba(255, 255, 255, 0.15);
    color: #ffffff;
    border-radius: 50%;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 0;
    transition: background 0.2s;
    flex-shrink: 0;
}

.ko-chatbot__close:hover {
    background: rgba(255, 255, 255, 0.3);
}

/* ── Messages ─────────────────────────────────────────────────────── */

.ko-chatbot__messages {
    flex: 1;
    overflow-y: auto;
    padding: 16px;
    display: flex;
    flex-direction: column;
    gap: 12px;
    scroll-behavior: smooth;
}

/* Scrollbar styling */
.ko-chatbot__messages::-webkit-scrollbar {
    width: 5px;
}

.ko-chatbot__messages::-webkit-scrollbar-track {
    background: transparent;
}

.ko-chatbot__messages::-webkit-scrollbar-thumb {
    background: var(--ko-chatbot-border);
    border-radius: 3px;
}

/* Message bubble */
.ko-chatbot__message {
    max-width: 82%;
    display: flex;
    flex-direction: column;
}

.ko-chatbot__message--user {
    align-self: flex-end;
}

.ko-chatbot__message--assistant {
    align-self: flex-start;
}

.ko-chatbot__message-content {
    padding: 10px 14px;
    border-radius: 14px;
    word-wrap: break-word;
    overflow-wrap: break-word;
    font-size: 14px;
    line-height: 1.5;
}

.ko-chatbot__message--user .ko-chatbot__message-content {
    background: var(--ko-chatbot-user-bg);
    color: var(--ko-chatbot-user-text);
    border-bottom-right-radius: 4px;
}

.ko-chatbot__message--assistant .ko-chatbot__message-content {
    background: var(--ko-chatbot-assistant-bg);
    color: var(--ko-chatbot-assistant-text);
    border-bottom-left-radius: 4px;
}

.ko-chatbot__message-content a {
    color: inherit;
    text-decoration: underline;
}

.ko-chatbot__message-time {
    font-size: 11px;
    color: var(--ko-chatbot-text-light);
    margin-top: 3px;
    padding: 0 4px;
}

.ko-chatbot__message--user .ko-chatbot__message-time {
    text-align: right;
}

/* ── Typing Indicator ─────────────────────────────────────────────── */

.ko-chatbot__typing {
    padding: 8px 16px;
    display: flex;
    align-items: center;
    flex-shrink: 0;
}

.ko-chatbot__typing-dots {
    display: flex;
    gap: 4px;
    padding: 10px 14px;
    background: var(--ko-chatbot-assistant-bg);
    border-radius: 14px;
}

.ko-chatbot__typing-dots span {
    width: 7px;
    height: 7px;
    border-radius: 50%;
    background: var(--ko-chatbot-text-light);
    animation: ko-chatbot-typing 1.4s ease-in-out infinite;
}

.ko-chatbot__typing-dots span:nth-child(2) {
    animation-delay: 0.2s;
}

.ko-chatbot__typing-dots span:nth-child(3) {
    animation-delay: 0.4s;
}

@keyframes ko-chatbot-typing {
    0%, 60%, 100% {
        opacity: 0.3;
        transform: translateY(0);
    }
    30% {
        opacity: 1;
        transform: translateY(-4px);
    }
}

/* ── Input Area ───────────────────────────────────────────────────── */

.ko-chatbot__input-area {
    display: flex;
    align-items: flex-end;
    gap: 8px;
    padding: 12px 16px;
    border-top: 1px solid var(--ko-chatbot-border);
    background: var(--ko-chatbot-bg);
    flex-shrink: 0;
}

.ko-chatbot__input {
    flex: 1;
    border: 1px solid var(--ko-chatbot-border);
    border-radius: 20px;
    padding: 8px 16px;
    font-size: 14px;
    font-family: inherit;
    line-height: 1.4;
    resize: none;
    overflow-y: auto;
    max-height: 120px;
    min-height: 38px;
    outline: none;
    transition: border-color 0.2s;
    color: var(--ko-chatbot-text);
    background: var(--ko-chatbot-bg);
}

.ko-chatbot__input:focus {
    border-color: var(--ko-chatbot-primary);
}

.ko-chatbot__input::placeholder {
    color: var(--ko-chatbot-text-light);
}

.ko-chatbot__send {
    width: 38px;
    height: 38px;
    border: none;
    background: var(--ko-chatbot-primary);
    color: #ffffff;
    border-radius: 50%;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 0;
    flex-shrink: 0;
    transition: background 0.2s, transform 0.1s;
}

.ko-chatbot__send:hover {
    background: var(--ko-chatbot-primary-dark);
}

.ko-chatbot__send:active {
    transform: scale(0.92);
}

/* ── Footer ───────────────────────────────────────────────────────── */

.ko-chatbot__footer {
    padding: 6px 16px 8px;
    text-align: center;
    flex-shrink: 0;
    background: var(--ko-chatbot-bg);
}

.ko-chatbot__footer-text {
    font-size: 10px;
    color: var(--ko-chatbot-text-light);
    letter-spacing: 0.3px;
}

/* ── Mobile Responsive ────────────────────────────────────────────── */

@media screen and (max-width: 767px) {
    .ko-chatbot__window {
        position: fixed;
        top: 0;
        left: 0;
        right: 0;
        bottom: 0;
        width: 100%;
        height: 100%;
        max-height: 100vh;
        border-radius: 0;
    }

    /* On mobile, the toggle button stays in its corner */
    .ko-chatbot--open .ko-chatbot__toggle {
        display: none;
    }

    .ko-chatbot__header {
        padding: 16px;
    }

    .ko-chatbot__close {
        width: 36px;
        height: 36px;
    }

    .ko-chatbot__message {
        max-width: 88%;
    }
}

/* ── Accessibility: Reduced Motion ────────────────────────────────── */

@media (prefers-reduced-motion: reduce) {
    .ko-chatbot__badge,
    .ko-chatbot__typing-dots span,
    .ko-chatbot__status-dot {
        animation: none;
    }

    .ko-chatbot__window {
        transition: opacity 0.1s;
        transform: none;
    }

    .ko-chatbot--open .ko-chatbot__window {
        transform: none;
    }

    .ko-chatbot__toggle {
        transition: none;
    }
}