:root {
    --primary-color: #3498db;
    --secondary-color: #16a34a;
    --text-color: #e2e8f0;
    --text-muted: #94a3b8;
    --bg-dark: #0f172a;
    --bg-dark-secondary: #1e293b;
    --border-radius: 16px;
    --border-radius-sm: 8px;
    --hover-transition: all 0.2s ease-in-out;
    --card-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    --transition: all 0.3s ease;
}

body {
    background-color: var(--bg-dark);
    color: var(--text-color);
    font-family: 'Plus Jakarta Sans', sans-serif;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

.navbar {
    background-color: var(--bg-dark-secondary);
    padding: 1rem 0;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.navbar-brand {
    color: var(--primary-color);
    font-size: 1.5rem;
    transition: var(--hover-transition);
}

.navbar-logo {
    height: 40px;
    width: auto;
    object-fit: contain;
}

@media (max-width: 768px) {
    .navbar-logo {
        height: 32px;
    }
}

.navbar-brand:hover {
    color: var(--secondary-color);
}

.nav-link {
    color: var(--text-color);
    font-weight: 500;
    transition: var(--hover-transition);
    margin: 0.25rem 0;
}

.nav-link:hover {
    color: white;
    background-color: var(--primary-color);
}

@media (max-width: 768px) {
    .navbar {
        padding: 0.5rem;
    }
    
    .nav-link {
        text-align: center;
        margin: 0.5rem 1rem;
    }
}

.auth-container {
    max-width: 400px;
    margin: 2rem auto;
    padding: 2.5rem;
    background: var(--bg-dark-secondary);
    border-radius: var(--border-radius);
    border: 1px solid rgba(255, 255, 255, 0.1);
}

.ai-tool-container {
    max-width: 800px;
    margin: 2rem auto;
    padding: 2.5rem;
    background: var(--bg-dark-secondary);
    border-radius: var(--border-radius);
    border: 1px solid rgba(255, 255, 255, 0.1);
    transition: var(--transition);
}

@media (max-width: 768px) {
    .ai-tool-container {
        margin: 1rem;
        padding: 1.5rem;
        border-radius: 12px;
    }
}

.chat-container {
    height: 400px;
    overflow-y: auto;
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 4px;
    padding: 1rem;
    margin-bottom: 1rem;
    background-color: var(--bg-dark);
}

.message {
    margin-bottom: 1rem;
    padding: 0.5rem 1rem;
    border-radius: 4px;
}

.message-user {
    background-color: rgba(255, 255, 255, 0.1);
    margin-left: 20%;
}

.message-ai {
    background-color: rgba(52, 152, 219, 0.1);
    margin-right: 20%;
}

.btn-primary {
    background-color: var(--secondary-color);
    border-color: var(--secondary-color);
    border-radius: 12px;
    padding: 0.75rem 1.5rem;
    transition: all 0.2s ease;
}

.btn-primary:hover {
    background-color: #15803d;
    border-color: #15803d;
    transform: translateY(-1px);
}

.btn-outline-secondary {
    border-radius: 12px;
    transition: all 0.2s ease;
    font-size: 0.95rem;
    line-height: 1.5;
    min-height: 80px;
    display: flex;
    align-items: center;
    text-align: left;
    white-space: normal;
    padding: 1rem;
    margin-bottom: 0.5rem;
    color: var(--text-color);
    border-color: rgba(255, 255, 255, 0.1);
}

.btn-outline-secondary:hover {
    background-color: var(--secondary-color);
    border-color: var(--secondary-color);
    color: white;
    transform: translateY(-2px);
}

.footer {
    background-color: var(--bg-dark-secondary);
    padding: 1rem 0;
    margin-top: 2rem;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.text-muted {
    color: var(--text-muted) !important;
}

/* Form styling */
.form-control {
    background-color: var(--bg-dark);
    border: 1.5px solid rgba(255, 255, 255, 0.1);
    border-radius: var(--border-radius-sm);
    padding: 0.875rem 1rem;
    transition: var(--hover-transition);
    font-size: 1rem;
    color: var(--text-color);
}

.form-control:focus {
    background-color: var(--bg-dark);
    border-color: var(--primary-color);
    box-shadow: 0 0 0 0.2rem rgba(52, 152, 219, 0.25);
    color: var(--text-color);
}

.form-select {
    background-color: var(--bg-dark);
    border-color: rgba(255, 255, 255, 0.1);
    color: var(--text-color);
    border-radius: 8px;
    padding: 0.75rem;
}

.form-select:focus {
    background-color: var(--bg-dark);
    border-color: var(--primary-color);
    box-shadow: 0 0 0 0.2rem rgba(52, 152, 219, 0.25);
    color: var(--text-color);
}

/* Alert styling */
.alert {
    border-radius: var(--border-radius-sm);
    border: 1px solid rgba(255, 255, 255, 0.1);
    background-color: var(--bg-dark-secondary);
    color: var(--text-color);
}

/* Image result styling */
.generated-image {
    max-width: 100%;
    border-radius: 8px;
    box-shadow: var(--card-shadow);
}