/* AI WordPress Builder — Chat UI */
:root {
    --bg: #0F1117;
    --bg-chat: #1A1D27;
    --bg-input: #252830;
    --bg-user: #2563EB;
    --bg-bot: #1E2130;
    --bg-card: #252830;
    --text: #E4E7EC;
    --text-muted: #8B8FA3;
    --text-hint: #5B5F73;
    --border: #2A2D3A;
    --accent: #2563EB;
    --accent-hover: #3B82F6;
    --success: #10B981;
    --error: #EF4444;
    --radius: 12px;
    --font: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
}

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

body {
    font-family: var(--font);
    background: var(--bg);
    color: var(--text);
    height: 100vh;
    overflow: hidden;
}

.app {
    display: flex;
    flex-direction: column;
    height: 100vh;
    max-width: 900px;
    margin: 0 auto;
}

/* Header */
.header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 16px 24px;
    border-bottom: 1px solid var(--border);
}
.header-brand {
    display: flex;
    align-items: center;
    gap: 12px;
}
.header-brand h1 {
    font-size: 16px;
    font-weight: 600;
    color: var(--text);
}
.header-badge {
    font-size: 11px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 1px;
    color: var(--accent);
    background: rgba(37, 99, 235, 0.15);
    padding: 4px 10px;
    border-radius: 20px;
}

/* Chat Area */
.chat-area {
    flex: 1;
    overflow-y: auto;
    padding: 24px;
    display: flex;
    flex-direction: column;
    gap: 16px;
}
.chat-area::-webkit-scrollbar { width: 6px; }
.chat-area::-webkit-scrollbar-track { background: transparent; }
.chat-area::-webkit-scrollbar-thumb { background: var(--border); border-radius: 3px; }

/* Messages */
.message {
    display: flex;
    gap: 12px;
    max-width: 85%;
    animation: fadeIn 0.3s ease;
}
.bot-message { align-self: flex-start; }
.user-message { align-self: flex-end; flex-direction: row-reverse; }

.message-avatar {
    width: 32px;
    height: 32px;
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 11px;
    font-weight: 700;
    flex-shrink: 0;
}
.bot-message .message-avatar { background: var(--accent); color: #fff; }
.user-message .message-avatar { background: #374151; color: var(--text-muted); }

.message-content {
    padding: 12px 16px;
    border-radius: var(--radius);
    font-size: 14px;
    line-height: 1.7;
}
.bot-message .message-content { background: var(--bg-bot); }
.user-message .message-content { background: var(--bg-user); color: #fff; }

.message-content p { margin-bottom: 8px; }
.message-content p:last-child { margin-bottom: 0; }
.message-hint { color: var(--text-hint); font-size: 13px; }

/* Progress */
.progress-container {
    margin-top: 12px;
}
.progress-bar {
    height: 6px;
    background: var(--border);
    border-radius: 3px;
    overflow: hidden;
    margin-bottom: 8px;
}
.progress-fill {
    height: 100%;
    background: var(--accent);
    border-radius: 3px;
    transition: width 0.5s ease;
    width: 0%;
}
.progress-steps {
    display: flex;
    flex-direction: column;
    gap: 4px;
}
.step-item {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 13px;
    color: var(--text-muted);
}
.step-item.active { color: var(--accent); }
.step-item.done { color: var(--success); }
.step-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: var(--border);
    flex-shrink: 0;
}
.step-item.active .step-dot { background: var(--accent); animation: pulse 1.5s infinite; }
.step-item.done .step-dot { background: var(--success); }

/* Preview Card */
.preview-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 20px;
    margin-top: 12px;
}
.preview-card h3 {
    font-size: 15px;
    font-weight: 600;
    margin-bottom: 12px;
    color: var(--text);
}
.preview-meta {
    display: flex;
    gap: 16px;
    margin-bottom: 12px;
    flex-wrap: wrap;
}
.preview-meta span {
    font-size: 12px;
    color: var(--text-muted);
    display: flex;
    align-items: center;
    gap: 4px;
}
.color-dot {
    width: 12px;
    height: 12px;
    border-radius: 3px;
    display: inline-block;
}
.preview-pages {
    display: flex;
    flex-direction: column;
    gap: 8px;
}
.preview-page {
    font-size: 13px;
    color: var(--text);
    display: flex;
    align-items: flex-start;
    gap: 8px;
}
.preview-page .page-name {
    font-weight: 600;
    min-width: 80px;
    color: var(--accent);
}
.preview-page .page-sections {
    color: var(--text-muted);
    font-size: 12px;
}

/* Download Button */
.btn-download {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    margin-top: 16px;
    padding: 10px 20px;
    background: var(--success);
    color: #fff;
    border: none;
    border-radius: 8px;
    font-size: 13px;
    font-weight: 600;
    font-family: var(--font);
    cursor: pointer;
    transition: background 0.2s;
    text-decoration: none;
}
.btn-download:hover { background: #059669; }

/* Input Area */
.input-area {
    padding: 16px 24px 24px;
    border-top: 1px solid var(--border);
}
.input-options {
    display: none;
    gap: 12px;
    margin-bottom: 12px;
    flex-wrap: wrap;
}
.input-options.show { display: flex; }
.input-options label {
    display: flex;
    flex-direction: column;
    gap: 4px;
    flex: 1;
    min-width: 120px;
}
.option-label {
    font-size: 11px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 1px;
    color: var(--text-muted);
}
.input-options input {
    background: var(--bg-input);
    border: 1px solid var(--border);
    border-radius: 8px;
    padding: 8px 12px;
    color: var(--text);
    font-size: 13px;
    font-family: var(--font);
    outline: none;
}
.input-options input:focus { border-color: var(--accent); }

.input-form {
    display: flex;
    gap: 8px;
    align-items: center;
}
.input-form input[type="text"] {
    flex: 1;
    background: var(--bg-input);
    border: 1px solid var(--border);
    border-radius: 10px;
    padding: 14px 18px;
    color: var(--text);
    font-size: 14px;
    font-family: var(--font);
    outline: none;
    transition: border-color 0.2s;
}
.input-form input[type="text"]:focus { border-color: var(--accent); }

.btn-options, .btn-send {
    width: 44px;
    height: 44px;
    border: 1px solid var(--border);
    border-radius: 10px;
    background: var(--bg-input);
    color: var(--text-muted);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.2s;
    flex-shrink: 0;
}
.btn-options:hover, .btn-send:hover {
    border-color: var(--accent);
    color: var(--accent);
}
.btn-send {
    background: var(--accent);
    border-color: var(--accent);
    color: #fff;
}
.btn-send:hover { background: var(--accent-hover); }
.btn-send:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

/* Animations */
@keyframes fadeIn {
    from { opacity: 0; transform: translateY(8px); }
    to { opacity: 1; transform: translateY(0); }
}
@keyframes pulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.4; }
}

/* Responsive */
@media (max-width: 640px) {
    .app { max-width: 100%; }
    .message { max-width: 95%; }
    .header { padding: 12px 16px; }
    .chat-area { padding: 16px; }
    .input-area { padding: 12px 16px 16px; }
}