/* 
   AI CHATBOT - EXPERT WEB TOOLS
   Theme: 2025 Glassmorphism (High Contrast)
*/

/* --- Fonts --- */
@font-face { font-family: 'Inter'; src: url('/fonts/inter-v20-latin-regular.woff2') format('woff2'); font-weight: 400; font-display: swap; }
@font-face { font-family: 'Orbitron'; src: url('/fonts/orbitron-v35-latin-700.woff2') format('woff2'); font-weight: 700; font-display: swap; }
@font-face { font-family: 'Roboto Mono'; src: url('/fonts/roboto-mono-v31-latin-regular.woff2') format('woff2'); font-weight: 400; font-display: swap; }

:root {
    --bg-dark: #0a0a0f;
    --primary-accent: #3b82f6;
    --secondary-accent: #8b5cf6;
    --text-main: #ffffff;
    --text-muted: #94a3b8;
    --card-bg: rgba(25, 25, 35, 0.6);
    --card-border: rgba(255, 255, 255, 0.08);
    
    --user-msg-bg: #3b82f6;
    --user-msg-text: #ffffff;
    --ai-msg-bg: rgba(255, 255, 255, 0.05);
    
    --link-color: #60a5fa; 

    --font-heading: 'Orbitron', sans-serif;
    --font-body: 'Inter', sans-serif;
    --font-code: 'Roboto Mono', monospace;
}

* { box-sizing: border-box; margin: 0; padding: 0; }

body {
    background-color: var(--bg-dark);
    color: var(--text-main);
    font-family: var(--font-body);
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

.background-glow {
    position: fixed; top: -50%; left: -50%; width: 200%; height: 200%;
    background: radial-gradient(circle at center, rgba(139, 92, 246, 0.08) 0%, rgba(10, 10, 15, 0) 50%);
    z-index: -1; pointer-events: none;
}

/* --- Header --- */
.tool-header {
    display: flex; justify-content: space-between; align-items: center;
    padding: 1.5rem 5%; max-width: 1400px; margin: 0 auto; width: 100%;
}
.back-btn {
    color: var(--text-muted); text-decoration: none; display: flex; align-items: center; gap: 8px; transition: color 0.3s;
}
.back-btn:hover { color: var(--primary-accent); }
.logo { font-family: var(--font-heading); font-size: 1.2rem; }
.logo span { color: var(--secondary-accent); }

/* --- Main Layout --- */
.main-content {
    flex-grow: 1; padding: 2rem 5%; max-width: 1200px; margin: 0 auto; width: 100%;
    height: calc(100vh - 80px); /* Fill remaining height */
    min-height: 600px;
}

.tool-layout {
    display: grid; grid-template-columns: 300px 1fr; gap: 1.5rem; height: 100%;
}

/* --- Sidebar --- */
.sidebar { display: flex; flex-direction: column; gap: 1.5rem; overflow-y: auto; }

.sidebar-card {
    background: var(--card-bg); border: 1px solid var(--card-border);
    border-radius: 12px; padding: 1.5rem;
}

.sidebar-card h3 {
    font-family: var(--font-heading); font-size: 0.9rem; margin-bottom: 1rem;
    color: var(--text-muted); display: flex; align-items: center; gap: 8px;
}

select, textarea {
    width: 100%; background: rgba(0, 0, 0, 0.3); border: 1px solid var(--card-border);
    color: #fff; padding: 10px; border-radius: 8px; font-family: var(--font-body);
    font-size: 0.9rem; outline: none;
}
select { cursor: pointer; }
/* FIX Dropdown options visibility */
select option { background-color: var(--bg-dark); color: #fff; padding: 10px; }

textarea { resize: vertical; min-height: 80px; margin-bottom: 10px; font-family: var(--font-code); }
textarea:focus, select:focus { border-color: var(--primary-accent); }

.tool-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 8px; }

.tool-btn {
    background: transparent; border: 1px solid var(--card-border); color: var(--text-muted);
    padding: 8px; border-radius: 6px; cursor: pointer; font-size: 0.8rem;
    transition: all 0.2s; display: flex; flex-direction: column; align-items: center; gap: 5px;
}
.tool-btn:hover { background: rgba(255, 255, 255, 0.05); color: #fff; border-color: var(--text-muted); }
.tool-btn i { font-size: 1.2rem; color: var(--secondary-accent); }

.clear-btn {
    width: 100%; background: rgba(239, 68, 68, 0.1); color: #f87171;
    border: 1px solid rgba(239, 68, 68, 0.2); padding: 10px; border-radius: 8px;
    cursor: pointer; font-weight: 600;
}
.clear-btn:hover { background: rgba(239, 68, 68, 0.2); }

/* --- Chat Interface --- */
.chat-interface {
    background: var(--card-bg); border: 1px solid var(--card-border);
    border-radius: 16px; display: flex; flex-direction: column; overflow: hidden;
    backdrop-filter: blur(10px);
}

.chat-window {
    flex-grow: 1; padding: 1.5rem; overflow-y: auto;
    display: flex; flex-direction: column; gap: 1.5rem;
}

/* Messages */
.message { display: flex; gap: 15px; max-width: 85%; animation: fadeIn 0.3s ease; }
@keyframes fadeIn { from { opacity: 0; transform: translateY(10px); } to { opacity: 1; transform: translateY(0); } }

.avatar {
    width: 35px; height: 35px; border-radius: 50%; display: flex;
    align-items: center; justify-content: center; flex-shrink: 0;
}

.ai-message { align-self: flex-start; }
.ai-message .avatar { background: rgba(255,255,255,0.1); color: var(--secondary-accent); }
.ai-message .message-content {
    background: var(--ai-msg-bg); border: 1px solid var(--card-border);
    border-radius: 0 12px 12px 12px;
}

.user-message { align-self: flex-end; flex-direction: row-reverse; }
.user-message .avatar { background: var(--primary-accent); color: #fff; }
.user-message .message-content {
    background: var(--user-msg-bg); color: var(--user-msg-text);
    border-radius: 12px 0 12px 12px;
}

.message-content { padding: 10px 15px; font-size: 0.95rem; line-height: 1.6; }
.message-content a { color: var(--link-color) !important; text-decoration: underline; }
.message-content pre {
    background: rgba(0,0,0,0.3); padding: 10px; border-radius: 8px; overflow-x: auto;
    margin: 10px 0; border: 1px solid rgba(255,255,255,0.1);
}
.message-content code { font-family: var(--font-code); font-size: 0.9rem; }
.message-content p { margin-bottom: 10px; }
.message-content p:last-child { margin-bottom: 0; }

/* Typing Indicator */
.typing-indicator {
    padding: 10px 1.5rem; font-size: 0.8rem; color: var(--text-muted);
    font-style: italic; display: none;
}
.typing-indicator.visible { display: block; }

/* Input Area */
.chat-input-area {
    padding: 1rem; border-top: 1px solid var(--card-border);
    display: flex; gap: 10px; background: rgba(0,0,0,0.2);
}

#chat-input {
    flex-grow: 1; background: rgba(255,255,255,0.05); border: 1px solid var(--card-border);
    border-radius: 25px; padding: 12px 20px; color: #fff; outline: none; font-size: 1rem;
}
#chat-input:focus { border-color: var(--primary-accent); }

#send-btn {
    width: 45px; height: 45px; border-radius: 50%; background: var(--primary-accent);
    color: #fff; border: none; cursor: pointer; font-size: 1.1rem; transition: transform 0.2s;
}
#send-btn:hover { transform: scale(1.05); }
#send-btn:disabled { background: #4b5563; cursor: not-allowed; }

/* Modal */
.modal {
    position: fixed; top: 0; left: 0; width: 100%; height: 100%;
    background: rgba(0,0,0,0.7); z-index: 1000;
    display: flex; align-items: center; justify-content: center; backdrop-filter: blur(5px);
}
.modal.hidden { display: none; }
.modal-content {
    background: #1a1a20; border: 1px solid var(--card-border); padding: 2rem;
    border-radius: 12px; width: 90%; max-width: 400px; text-align: center;
}
.modal-content h3 { margin-bottom: 1rem; font-family: var(--font-heading); }
.modal-actions { margin-top: 1.5rem; display: flex; gap: 10px; justify-content: center; }
.modal-actions button {
    padding: 10px 20px; border-radius: 8px; border: none; cursor: pointer; font-weight: 600;
}
#confirm-translate { background: var(--primary-accent); color: white; }
#cancel-translate { background: transparent; border: 1px solid var(--card-border); color: var(--text-muted); }

/* --- NEW: Info & FAQ Section --- */
.info-section { margin-top: 3rem; padding-top: 2rem; border-top: 1px solid var(--card-border); }
.info-section h2 { font-family: var(--font-heading); color: var(--text-main); margin-bottom: 1.5rem; font-size: 1.4rem; text-align: center; }

.info-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 2rem; margin-bottom: 2rem; }
.info-grid h3 { color: var(--primary-accent); font-family: var(--font-heading); font-size: 1.1rem; margin-bottom: 0.5rem; }
.info-grid i { margin-right: 8px; }
.info-grid p { color: var(--text-muted); font-size: 0.95rem; line-height: 1.6; }

.faq-container { margin-top: 2rem; }
.faq-container h3 { font-family: var(--font-heading); color: var(--text-main); margin: 1.5rem 0 1rem; }
.faq-container h4 { color: var(--secondary-accent); font-size: 1rem; margin-bottom: 0.5rem; margin-top: 1.5rem; }
.faq-container p { color: var(--text-muted); font-size: 0.95rem; margin-bottom: 1rem; line-height: 1.6; }

/* Responsive */
@media (max-width: 800px) {
    .tool-layout { grid-template-columns: 1fr; height: auto; }
    .sidebar { order: 2; }
    .chat-interface { order: 1; height: 60vh; }
    .info-grid { grid-template-columns: 1fr; }
}