/* =========================================
   VZDELKO AI CHATBOT WIDGET
   ========================================= */

/* --- Floating Bubble --- */
#vzdelko-bubble {
    position: fixed;
    bottom: 24px;
    right: 24px;
    width: 60px;
    height: 60px;
    border-radius: 50%;
    background: linear-gradient(135deg, #0ea5e9, #8b5cf6);
    border: none;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 8px 32px rgba(14, 165, 233, 0.4);
    z-index: 9999;
    transition: transform 0.3s cubic-bezier(0.16, 1, 0.3, 1), box-shadow 0.3s ease;
    color: white;
}

#vzdelko-bubble:hover {
    transform: scale(1.1);
    box-shadow: 0 12px 40px rgba(14, 165, 233, 0.5);
}

#vzdelko-bubble:active {
    transform: scale(0.95);
}

.vzdelko-pulse {
    position: absolute;
    width: 100%;
    height: 100%;
    border-radius: 50%;
    background: linear-gradient(135deg, #0ea5e9, #8b5cf6);
    animation: vzdelkoPulse 2s ease-in-out infinite;
    z-index: -1;
}

@keyframes vzdelkoPulse {
    0% { transform: scale(1); opacity: 0.5; }
    50% { transform: scale(1.4); opacity: 0; }
    100% { transform: scale(1); opacity: 0; }
}

/* --- Chat Panel --- */
#vzdelko-panel {
    position: fixed;
    bottom: 100px;
    right: 24px;
    width: 380px;
    max-height: 520px;
    background: var(--bg-card, #ffffff);
    border: 1px solid var(--border-color, #e2e8f0);
    border-radius: 20px;
    box-shadow: 0 25px 60px rgba(0, 0, 0, 0.15);
    z-index: 9998;
    display: flex;
    flex-direction: column;
    overflow: hidden;
    opacity: 0;
    transform: translateY(20px) scale(0.95);
    pointer-events: none;
    transition: opacity 0.3s cubic-bezier(0.16, 1, 0.3, 1),
                transform 0.3s cubic-bezier(0.16, 1, 0.3, 1);
}

#vzdelko-panel.vzdelko-open {
    opacity: 1;
    transform: translateY(0) scale(1);
    pointer-events: auto;
}

body.dark-mode #vzdelko-panel {
    background: rgba(10, 15, 30, 0.95);
    border-color: rgba(255, 255, 255, 0.08);
    box-shadow: 0 25px 60px rgba(0, 0, 0, 0.5);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
}

/* --- Header --- */
.vzdelko-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 16px 20px;
    background: linear-gradient(135deg, #0ea5e9, #7c3aed);
    color: white;
    flex-shrink: 0;
}

.vzdelko-header-info {
    display: flex;
    align-items: center;
    gap: 12px;
}

.vzdelko-avatar {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.2);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.3rem;
    backdrop-filter: blur(8px);
}

.vzdelko-name {
    font-weight: 800;
    font-size: 1.05rem;
    letter-spacing: -0.3px;
}

.vzdelko-status {
    font-size: 0.75rem;
    opacity: 0.85;
    font-weight: 500;
}

.vzdelko-close-btn {
    background: rgba(255, 255, 255, 0.15);
    border: none;
    color: white;
    cursor: pointer;
    width: 32px;
    height: 32px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: background 0.2s ease;
}

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

/* --- Messages Area --- */
.vzdelko-messages {
    flex: 1;
    overflow-y: auto;
    padding: 16px;
    display: flex;
    flex-direction: column;
    gap: 12px;
    min-height: 280px;
    max-height: 350px;
    scrollbar-width: thin;
    scrollbar-color: var(--border-color, #e2e8f0) transparent;
}

.vzdelko-messages::-webkit-scrollbar {
    width: 4px;
}

.vzdelko-messages::-webkit-scrollbar-thumb {
    background: var(--border-color, #e2e8f0);
    border-radius: 2px;
}

/* --- Message Bubbles --- */
.vzdelko-msg {
    display: flex;
    opacity: 0;
    transform: translateY(8px);
    transition: opacity 0.3s ease, transform 0.3s ease;
}

.vzdelko-msg.vzdelko-msg-visible {
    opacity: 1;
    transform: translateY(0);
}

.vzdelko-msg-bot {
    justify-content: flex-start;
}

.vzdelko-msg-user {
    justify-content: flex-end;
}

.vzdelko-msg-content {
    max-width: 85%;
    padding: 10px 14px;
    border-radius: 16px;
    font-size: 0.9rem;
    line-height: 1.5;
    font-weight: 500;
    word-wrap: break-word;
}

.vzdelko-msg-bot .vzdelko-msg-content {
    background: var(--bg-main, #f1f5f9);
    color: var(--text-dark, #1e293b);
    border-bottom-left-radius: 4px;
}

body.dark-mode .vzdelko-msg-bot .vzdelko-msg-content {
    background: rgba(255, 255, 255, 0.06);
    color: #e2e8f0;
}

.vzdelko-msg-user .vzdelko-msg-content {
    background: linear-gradient(135deg, #0ea5e9, #7c3aed);
    color: white;
    border-bottom-right-radius: 4px;
}

/* --- Typing Indicator --- */
.vzdelko-dots {
    display: flex;
    gap: 4px;
    align-items: center;
    padding: 4px 0;
}

.vzdelko-dots span {
    width: 7px;
    height: 7px;
    border-radius: 50%;
    background: var(--text-dim, #94a3b8);
    animation: vzdelkoBounce 1.4s infinite ease-in-out both;
}

.vzdelko-dots span:nth-child(1) { animation-delay: 0s; }
.vzdelko-dots span:nth-child(2) { animation-delay: 0.16s; }
.vzdelko-dots span:nth-child(3) { animation-delay: 0.32s; }

@keyframes vzdelkoBounce {
    0%, 80%, 100% { transform: scale(0.6); opacity: 0.4; }
    40% { transform: scale(1); opacity: 1; }
}

/* --- Input Area --- */
.vzdelko-input-wrap {
    display: flex;
    padding: 12px 16px;
    gap: 8px;
    border-top: 1px solid var(--border-color, #e2e8f0);
    background: var(--bg-card, #ffffff);
    flex-shrink: 0;
    overflow: hidden;
    box-sizing: border-box;
}

body.dark-mode .vzdelko-input-wrap {
    background: rgba(10, 15, 30, 0.8);
    border-top-color: rgba(255, 255, 255, 0.06);
}

#vzdelko-input {
    flex: 1;
    min-width: 0;
    border: 1px solid var(--border-color, #e2e8f0);
    border-radius: 12px;
    padding: 10px 14px;
    font-size: 0.9rem !important;
    font-family: 'Plus Jakarta Sans', sans-serif;
    font-weight: 500;
    background: var(--bg-main, #f8fafc);
    color: var(--text-dark, #1e293b);
    outline: none;
    transition: border-color 0.2s ease, box-shadow 0.2s ease;
    box-sizing: border-box;
}

body.dark-mode #vzdelko-input {
    background: rgba(255, 255, 255, 0.05);
    border-color: rgba(255, 255, 255, 0.1);
    color: #f8fafc;
}

#vzdelko-input:focus {
    border-color: #0ea5e9;
    box-shadow: 0 0 0 3px rgba(14, 165, 233, 0.15);
}

#vzdelko-input::placeholder {
    color: var(--text-dim, #94a3b8);
    font-weight: 500;
}

#vzdelko-send {
    width: 44px;
    height: 44px;
    min-width: 44px;
    border-radius: 14px;
    background: linear-gradient(135deg, #0ea5e9, #7c3aed);
    border: none;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    transition: transform 0.2s ease, opacity 0.2s ease, box-shadow 0.2s ease;
    flex-shrink: 0;
    box-shadow: 0 4px 12px rgba(14, 165, 233, 0.3);
}

#vzdelko-send:hover {
    transform: scale(1.05);
}

#vzdelko-send:disabled {
    opacity: 0.5;
    cursor: not-allowed;
    transform: none;
}

/* --- Mobile Responsive --- */
@media (max-width: 480px) {
    #vzdelko-bubble {
        bottom: 20px;
        right: 20px;
        width: 56px;
        height: 56px;
        transition: transform 0.3s ease, opacity 0.3s ease;
        z-index: 9999;
    }

    /* Hide bubble completely when chat is open on mobile */
    body.vzdelko-active #vzdelko-bubble {
        opacity: 0 !important;
        pointer-events: none !important;
        visibility: hidden !important;
    }
    
    #vzdelko-panel {
        top: 0 !important;
        left: 0 !important;
        right: 0 !important;
        bottom: 0 !important;
        width: 100% !important;
        height: 100% !important;
        max-width: 100% !important;
        max-height: 100% !important;
        border-radius: 0 !important;
        border: none !important;
        transform: translateY(100%) !important;
        box-shadow: none !important;
        z-index: 10000 !important;
        transition: transform 0.4s cubic-bezier(0.16, 1, 0.3, 1) !important;
    }
    
    #vzdelko-panel.vzdelko-open {
        transform: translateY(0) !important;
        opacity: 1 !important;
    }
    
    .vzdelko-header {
        padding: 16px 20px;
        padding-top: max(16px, env(safe-area-inset-top)) !important;
        border-radius: 0 !important;
    }
    
    .vzdelko-messages {
        padding: 20px !important;
        max-height: none !important;
        flex: 1 !important;
    }

    .vzdelko-input-wrap {
        padding: 12px 20px !important;
        padding-bottom: max(12px, env(safe-area-inset-bottom)) !important;
        background: var(--bg-card, #ffffff) !important;
        box-shadow: 0 -4px 20px rgba(0, 0, 0, 0.1) !important;
    }

    #vzdelko-input {
        padding: 12px 16px !important;
        font-size: 16px !important;
        border-radius: 20px !important;
    }
    
    #vzdelko-send {
        width: 48px !important;
        height: 48px !important;
        min-width: 48px !important;
        max-width: 48px !important;
        min-height: 48px !important;
        border-radius: 50% !important;
        padding: 0 !important;
        margin: 0 !important;
    }

    #vzdelko-send svg {
        width: 22px !important;
        height: 22px !important;
        margin: 0 !important;
        padding: 0 !important;
    }
}