/* --- Global Variables --- */
:root {
    --bg-color: #1e1e1e;
    --card-color: #2a2a2a;
    --sidebar-color: #191919;
    --text-color: #f0f0f0;
    --text-muted: #aaaaaa;
    --accent-color: #007bff;
    --accent-hover: #0056b3;
    --border-color: #444444;
    --error-color: #e53e3e;
    --sidebar-width: 260px;
}

/* --- Base Styles --- */
body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
    background-color: var(--bg-color);
    color: var(--text-color);
    margin: 0;
    padding: 0;
}

/* --- App Layout --- */
.app-layout { display: flex; width: 100%; min-height: 100vh; }
.sidebar {
    width: var(--sidebar-width); background-color: var(--sidebar-color);
    padding: 1rem; box-sizing: border-box; display: flex;
    flex-direction: column; border-right: 1px solid var(--border-color);
    transition: transform 0.3s ease; z-index: 100;
}
.main-content { flex-grow: 1; display: flex; flex-direction: column; overflow-y: auto; }

/* --- Header --- */
.app-header {
    display: flex; align-items: center; padding: 0.75rem 1.5rem;
    background-color: var(--card-color); border-bottom: 1px solid var(--border-color);
    position: sticky; top: 0; z-index: 50;
}
.menu-toggle {
    background: none; border: none; color: var(--text-muted); font-size: 1.5rem;
    cursor: pointer; margin-right: 1rem; display: none;
}
.app-title { font-size: 1.5rem; margin: 0; flex-grow: 1; }
.auth-buttons { display: flex; align-items: center; gap: 0.75rem; }
.auth-buttons button {
    padding: 0.5rem 1rem; font-size: 0.9rem; font-weight: 600;
    border-radius: 6px; cursor: pointer; border: none;
}
.btn-secondary { background-color: var(--border-color); color: var(--text-color); }
.btn-secondary:hover { background-color: #555; }
.btn-primary { background-color: var(--accent-color); color: white; }
.btn-primary:hover { background-color: var(--accent-hover); }
.profile-btn {
    background-color: var(--accent-color); color: white; width: 36px; height: 36px;
    border-radius: 50%; font-size: 1rem; font-weight: bold; display: flex;
    align-items: center; justify-content: center; cursor: pointer; border: none;
}
.profile-btn:hover { background-color: var(--accent-hover); }

/* --- Sidebar Content --- */
.new-kit-btn {
    background-color: var(--card-color); color: var(--text-color);
    border: 1px solid var(--border-color); padding: 0.75rem 1rem;
    font-size: 1rem; border-radius: 8px; cursor: pointer; text-align: left;
    margin-bottom: 1.5rem; display: flex; align-items: center; width: 100%;
}
.new-kit-btn:hover { background-color: #333; }
.new-kit-btn i { margin-right: 0.5rem; }
.kit-history { flex-grow: 1; overflow-y: auto; }
.kit-history p { color: var(--text-muted); font-size: 0.9rem; }
.kit-history a {
    display: block; color: var(--text-muted); text-decoration: none;
    padding: 0.5rem 0.25rem; border-radius: 4px; margin-bottom: 0.25rem;
    white-space: nowrap; overflow: hidden; text-overflow: ellipsis;
    font-size: 0.9rem;
}
.kit-history a:hover { background-color: var(--card-color); color: var(--text-color); }

/* --- Main Generator Area --- */
.container { max-width: 700px; width: 100%; padding: 2rem; margin: 0 auto; box-sizing: border-box; }
.generator-form { background-color: var(--card-color); padding: 2rem; border-radius: 12px; border: 1px solid var(--border-color); }
.form-description { font-size: 1.1rem; color: var(--text-muted); text-align: center; margin-top: 0; margin-bottom: 2rem; }
.form-group { margin-bottom: 1.5rem; }
.form-group label { display: block; font-weight: 600; margin-bottom: 0.5rem; }
.form-group input, .form-group select {
    width: 100%; padding: 0.8rem 1rem; font-size: 1rem;
    background-color: var(--bg-color); color: var(--text-color);
    border: 1px solid var(--border-color); border-radius: 8px;
    box-sizing: border-box;
}
.btn-generate {
    width: 100%; padding: 1rem; font-size: 1.1rem; font-weight: 600;
    color: #ffffff; background-color: var(--accent-color);
    border: none; border-radius: 8px; cursor: pointer;
    transition: background-color 0.3s ease;
}
.btn-generate:hover { background-color: var(--accent-hover); }
.btn-generate:disabled { background-color: var(--border-color); cursor: not-allowed; }

/* --- Output Area Styles --- */
#output-container { margin-top: 2.5rem; }
.result-card {
    background-color: var(--card-color); padding: 1.5rem;
    border-radius: 12px; border: 1px solid var(--border-color);
    margin-bottom: 1rem; position: relative;
}
.result-card p { white-space: pre-wrap; margin: 0; padding-right: 4rem; }
.copy-btn {
    position: absolute; top: 1.5rem; right: 1.5rem;
    background: var(--border-color); color: var(--text-color);
    border: none; padding: 0.5rem 0.8rem; border-radius: 6px;
    cursor: pointer; font-weight: 600; transition: background-color 0.3s ease;
}
.copy-btn:hover { background: #555; }
.result-card h3 {
    display: flex; align-items: center; margin: 0 0 0.75rem 0;
    color: var(--text-color); font-size: 0.9rem; font-weight: 600;
    text-transform: uppercase; letter-spacing: 0.5px;
}
.result-card h3 i {
    font-size: 1.1rem; margin-right: 0.5rem; width: 20px;
    text-align: center; color: var(--accent-color);
}
.fa-linkedin { color: #0077b5 !important; }
.fa-x-twitter { color: #ffffff !important; }
.fa-instagram { color: #E1306C !important; }
.fa-whatsapp { color: #25D366 !important; }

/* --- Authentication Modal --- */
.auth-modal-overlay {
    position: fixed; top: 0; left: 0; width: 100%; height: 100%;
    background-color: rgba(0, 0, 0, 0.7); display: flex;
    align-items: center; justify-content: center; z-index: 1000;
}
.auth-modal {
    background-color: var(--card-color); padding: 2.5rem;
    border-radius: 12px; width: 90%; max-width: 400px;
    position: relative; box-shadow: 0 5px 15px rgba(0,0,0,0.5);
}
.close-modal-btn {
    position: absolute; top: 1rem; right: 1rem; background: none; border: none;
    color: var(--text-muted); font-size: 1.5rem; cursor: pointer;
}
.auth-modal h2 { margin-top: 0; text-align: center; }
.auth-modal #modal-submit-btn { width: 100%; margin-top: 1rem; }
.modal-error { color: var(--error-color); text-align: center; margin-top: 1rem; height: 1em; }
.switch-mode-text { text-align: center; margin-top: 1.5rem; font-size: 0.9rem; color: var(--text-muted); }
.switch-mode-text a { color: var(--accent-color); text-decoration: none; font-weight: 600; }
.switch-mode-text a:hover { text-decoration: underline; }

/* --- Responsive Design (Mobile) --- */
@media (max-width: 768px) {
    .sidebar { position: fixed; transform: translateX(-100%); box-shadow: 2px 0 5px rgba(0,0,0,0.5); }
    .sidebar.open { transform: translateX(0); }
    .menu-toggle { display: block; }
    .app-header { padding: 0.75rem 1rem; }
    .container { padding: 1rem; }
}