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

/* Chat Widget Container */
#chat-widget {
    position: fixed;
    bottom: 20px;
    right: 20px;
    z-index: 1000;
    font-family: var(--font-ui);
    transition: all 0.3s ease;
}

/* ===== HIDDEN STATE (Button Only) ===== */
.chat-hidden .chat-window {
    display: none;
}

.chat-hidden .chat-btn {
    display: flex;
}

/* ===== WINDOWED STATE (Widget) ===== */
.chat-windowed .chat-btn {
    display: none;
}

.chat-windowed .chat-window {
    display: flex;
    width: 350px;
    height: 500px;
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    border-radius: 16px;
    backdrop-filter: blur(20px);
    box-shadow: var(--shadow-xl);
    flex-direction: column;
    overflow: hidden;
}

/* ===== FULLSCREEN STATE ===== */
.chat-fullscreen {
    position: fixed !important;
    top: 0 !important;
    left: 0 !important;
    right: 0 !important;
    bottom: 0 !important;
    width: 100vw !important;
    height: 100vh !important;
    background: var(--black);
}

/* Hide navigation when chat is fullscreen */
.chat-fullscreen ~ .site-nav,
body:has(.chat-fullscreen) .site-nav {
    display: none !important;
}

.chat-fullscreen .chat-btn {
    display: none;
}

.chat-fullscreen .chat-window {
    display: flex;
    width: 100% !important;
    height: 100% !important;
    border-radius: 0 !important;
    border: none !important;
    box-shadow: none !important;
    background: var(--black);
    flex-direction: column;
}

.chat-fullscreen .chat-messages {
    max-width: 100%;
    margin: 0;
    padding: var(--space-6) !important;
    padding-bottom: 120px !important;
}

.chat-fullscreen .chat-input-bar {
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    padding: var(--space-4) var(--space-6);
    background: var(--glass-bg-strong);
    border-top: 1px solid var(--glass-border-strong);
    backdrop-filter: blur(24px);
    max-width: none;
}

/* ===== CHAT BUTTON ===== */
.chat-btn {
    display: none;
    align-items: center;
    gap: var(--space-2);
    padding: 12px 20px;
    background: var(--orange);
    color: white;
    border: none;
    border-radius: 50px;
    font-size: 14px;
    font-weight: 500;
    cursor: pointer;
    box-shadow: var(--shadow-lg);
    transition: var(--transition-smooth);
}

.chat-btn:hover {
    background: var(--orange-light);
    transform: translateY(-2px);
    box-shadow: var(--shadow-xl);
}


/* ===== CHAT WINDOW ===== */
.chat-window {
    display: none;
}

/* Chat Header */
.chat-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 16px;
    background: var(--glass-bg-strong);
    border-bottom: 1px solid var(--glass-border);
    flex-shrink: 0;
}

.chat-brand {
    display: flex;
    align-items: center;
    gap: 12px;
    color: var(--glass-text-primary);
    font-weight: 500;
}

.chat-brand img {
    height: 20px;
}

.chat-controls {
    display: flex;
    gap: 8px;
}

.chat-controls button {
    background: none;
    border: 1px solid rgba(255,255,255,0.2);
    color: var(--glass-text-primary);
    width: 40px;
    height: 40px;
    border-radius: 8px;
    cursor: pointer;
    font-size: 16px;
    transition: var(--transition-smooth);
}

.chat-controls button:hover {
    background: rgba(255,255,255,0.1);
    border-color: var(--orange);
}

/* Chat Messages */
.chat-messages {
    flex: 1;
    padding: 16px;
    padding-bottom: 80px;
    overflow-y: auto;
    display: flex;
    flex-direction: column;
    gap: 12px;
}

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

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

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

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

/* Chat Message Bubbles */
.chat-message {
    padding: 14px 18px;
    border-radius: 18px;
    font-size: 14px;
    line-height: 1.4;
    max-width: 85%;
    word-wrap: break-word;
    box-shadow: 0 2px 8px rgba(0,0,0,0.1);
    animation: slideIn 0.3s ease-out;
    margin-bottom: 8px;
}

@keyframes slideIn {
    from { opacity: 0; transform: translateY(10px); }
    to { opacity: 1; transform: translateY(0); }
}

.chat-message.user {
    background: linear-gradient(135deg, rgba(255, 138, 66, 0.15) 0%, rgba(255, 140, 66, 0.25) 100%);
    border: 1px solid rgba(255, 138, 66, 0.3);
    color: var(--orange-light);
    margin-left: auto;
    border-bottom-right-radius: 6px;
    backdrop-filter: blur(12px);
    box-shadow: 0 4px 12px rgba(255, 138, 66, 0.2);
}

.chat-message.apitecture {
    background: linear-gradient(135deg, var(--glass-bg-strong) 0%, rgba(255,255,255,0.08) 100%);
    border: 1px solid var(--glass-border);
    color: var(--glass-text-primary);
    margin-right: auto;
    border-bottom-left-radius: 6px;
    backdrop-filter: blur(12px);
    box-shadow: 0 4px 12px rgba(0,0,0,0.15);
}

/* Chat Input Bar */
.chat-input-bar {
    display: flex;
    gap: 8px;
    padding: 16px;
    background: var(--glass-bg-strong);
    border-top: 1px solid var(--glass-border);
    flex-shrink: 0;
}

.chat-input-bar input {
    flex: 1;
    padding: 12px 16px;
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    border-radius: 8px;
    color: var(--glass-text-primary);
    font-size: 14px;
    outline: none;
}

.chat-input-bar input:focus {
    border-color: var(--orange);
}

.chat-input-bar button {
    background: var(--orange);
    color: white;
    border: none;
    border-radius: 8px;
    padding: 12px 16px;
    font-size: 14px;
    font-weight: 500;
    cursor: pointer;
    transition: var(--transition-smooth);
}

.chat-input-bar button:hover {
    background: var(--orange-light);
}

/* ===== RESPONSIVE ===== */
@media (max-width: 768px) {
    .chat-windowed .chat-window {
        width: calc(100vw - 20px);
        height: 400px;
        max-width: 350px;
    }
    
    #chat-widget {
        right: 10px;
        bottom: 10px;
    }
    
    .chat-fullscreen .chat-messages {
        padding: var(--space-4) !important;
        padding-bottom: 120px !important;
    }
    
    .chat-fullscreen .chat-input-bar {
        padding: var(--space-3);
    }
}