/* Import Inter font for professional typography */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;600;700&display=swap');

/* CSS Variables for consistent theming */
:root {
    --primary: #1e90ff; /* Web3 blue for buttons */
    --success: #28a745; /* Green for success toasts */
    --error: #dc3545; /* Red for error toasts */
    --bg-gradient: linear-gradient(135deg, #1a2a44 0%, #2c3e50 100%); /* Dark navy to gray gradient */
    --container-bg: #ffffff; /* White container */
    --text: #333333; /* Dark text for contrast */
    --text-light: #ffffff; /* White text for dark backgrounds */
    --shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
}

/* Global styles */
body {
    font-family: 'Inter', Arial, sans-serif;
    background: var(--bg-gradient); /* Professional gradient background */
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 100vh;
    margin: 0;
    color: var(--text);
}

/* Main container */
.container {
    text-align: center;
    padding: 24px;
    border-radius: 12px;
    background: var(--container-bg);
    box-shadow: var(--shadow);
    max-width: 90%;
    width: 400px;
    transition: transform 0.3s ease;
}

.container:hover {
    transform: translateY(-2px); /* Subtle lift effect */
}

/* Headings */
h1 {
    font-size: 1.8rem;
    font-weight: 700;
    margin-bottom: 24px;
    color: var(--text);
}

/* Buttons */
button {
    background: var(--primary);
    color: var(--text-light);
    padding: 12px 24px;
    border: none;
    border-radius: 6px;
    cursor: pointer;
    font-size: 1rem;
    font-weight: 600;
    margin: 8px;
    transition: background 0.3s ease, transform 0.2s ease;
}

button:hover {
    background: #1565c0; /* Darker blue on hover */
    transform: translateY(-1px);
}

/* Text displays */
p {
    margin: 12px 0;
    font-size: 1rem;
    font-weight: 400;
}

/* Toast notifications */
.toast {
    position: fixed;
    bottom: 20px;
    left: 50%;
    transform: translateX(-50%);
    padding: 12px 24px;
    border-radius: 6px;
    color: var(--text-light);
    font-size: 0.9rem;
    font-weight: 500;
    display: none;
    box-shadow: var(--shadow);
}

.toast.success {
    background: var(--success);
}

.toast.error {
    background: var(--error);
}

/* Responsive design for mobile */
@media (max-width: 600px) {
    .container {
        padding: 16px;
        width: 95%;
    }
    h1 {
        font-size: 1.4rem;
    }
    button {
        font-size: 0.9rem;
        padding: 10px 20px;
    }
    p {
        font-size: 0.9rem;
    }
}