/* Fix para caracteres invisibles */
body {}

:root {
    --bg-dark: #08080c;
    --panel-bg: #12121a;
    --border: rgba(255, 255, 255, 0.1);
    --cyan: #00f3ff;
    --purple: #9d00ff;
    --text-main: #f5f5f7;
    --text-muted: #8b8b9e;
}


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

body {
    font-family: 'Inter', sans-serif;
    background-color: var(--bg-dark);
    color: var(--text-main);
    height: 100vh;
    overflow: hidden;
}

.app-container {
    display: flex;
    height: 100vh;
    max-width: 1600px;
    margin: 0 auto;
}

/* SIDEBAR FORM */
.sidebar {
    width: 350px;
    background-color: var(--panel-bg);
    border-right: 1px solid var(--border);
    padding: 2rem;
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
    overflow-y: auto;
}

.sidebar-header {
    margin-bottom: 1rem;
    border-bottom: 1px solid var(--border);
    padding-bottom: 1.5rem;
}

.app-logo {
    height: 40px;
    margin-bottom: 1rem;
}

.sidebar-header h2 {
    font-family: 'Space Grotesk', sans-serif;
    font-size: 1.5rem;
    color: var(--cyan);
}

.sidebar-header p {
    color: var(--text-muted);
    font-size: 0.9rem;
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.form-group label {
    font-size: 0.85rem;
    font-weight: 500;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 1px;
}

input,
textarea {
    width: 100%;
    background: rgba(0, 0, 0, 0.3);
    border: 1px solid var(--border);
    border-radius: 8px;
    padding: 12px;
    color: var(--text-main);
    font-family: 'Inter', sans-serif;
    outline: none;
    transition: border-color 0.3s;
}

input:focus,
textarea:focus {
    border-color: var(--cyan);
}

textarea {
    resize: vertical;
}

.btn-primary {
    background: linear-gradient(135deg, var(--cyan), var(--purple));
    color: #fff;
    border: none;
    padding: 15px;
    border-radius: 8px;
    font-family: 'Space Grotesk', sans-serif;
    font-weight: 700;
    font-size: 1rem;
    cursor: pointer;
    transition: transform 0.2s, box-shadow 0.2s;
    margin-top: 1rem;
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 20px rgba(157, 0, 255, 0.3);
}

.api-settings {
    margin-top: auto;
    padding-top: 1rem;
    border-top: 1px solid var(--border);
}

.api-settings input {
    font-size: 0.8rem;
    padding: 8px;
}

/* CHAT AREA */
.chat-area {
    flex: 1;
    display: flex;
    flex-direction: column;
    background-image: radial-gradient(circle at 50% 50%, rgba(157, 0, 255, 0.05), transparent 60%);
}

.chat-history {
    flex: 1;
    padding: 2rem;
    overflow-y: auto;
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.message {
    display: flex;
    gap: 1rem;
    max-width: 800px;
}

.message-avatar {
    width: 40px;
    height: 40px;
    background: rgba(0, 243, 255, 0.1);
    border: 1px solid var(--cyan);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.2rem;
    flex-shrink: 0;
}

.message-content {
    background: var(--panel-bg);
    border: 1px solid var(--border);
    padding: 1.5rem;
    border-radius: 0 16px 16px 16px;
    line-height: 1.6;
}

.message-content h3 {
    font-family: 'Space Grotesk', sans-serif;
    color: var(--cyan);
    margin-bottom: 0.5rem;
}

.chat-input-container {
    padding: 1.5rem 2rem;
    background: var(--panel-bg);
    border-top: 1px solid var(--border);
    display: flex;
    gap: 1rem;
}

.chat-input-container input {
    flex: 1;
    padding: 15px 20px;
    border-radius: 50px;
}

.chat-input-container button {
    width: 50px;
    height: 50px;
    border-radius: 50%;
    background: var(--cyan);
    border: none;
    color: #000;
    font-size: 1.2rem;
    cursor: pointer;
}

.chat-input-container button:disabled {
    background: var(--border);
    color: #888;
    cursor: not-allowed;
}

/* Tablet Responsive */
@media (max-width: 900px) {
    .app-container {
        flex-direction: column;
    }

    .sidebar {
        width: 100%;
        height: 40vh;
        border-right: none;
        border-bottom: 1px solid var(--border);
    }

    .chat-area {
        height: 60vh;
    }
}

.btn-export {
    background: transparent;
    border: 1px solid var(--purple);
    color: var(--cyan);
    padding: 8px 16px;
    border-radius: 6px;
    font-family: 'Space Grotesk', sans-serif;
    font-size: 0.85rem;
    cursor: pointer;
    margin-top: 1.5rem;
    transition: all 0.2s;
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
}

.btn-export:hover {
    background: rgba(157, 0, 255, 0.1);
    box-shadow: 0 0 10px rgba(157, 0, 255, 0.2);
}

.btn-pdf {
    border-color: var(--cyan);
    color: var(--text-main);
}

.btn-pdf:hover {
    background: rgba(0, 243, 255, 0.1);
    box-shadow: 0 0 10px rgba(0, 243, 255, 0.2);
}

.message-actions {
    display: flex;
    gap: 1rem;
    flex-wrap: wrap;
    margin-top: 1rem;
}

.btn-quick {
    background: var(--panel-bg);
    border: 1px solid var(--border);
    color: var(--text-muted);
    padding: 8px 16px;
    border-radius: 20px;
    font-family: 'Inter', sans-serif;
    font-size: 0.85rem;
    cursor: pointer;
    transition: all 0.2s;
}

.btn-quick:hover {
    color: var(--cyan);
    border-color: var(--cyan);
}