:root,
[data-bs-theme="dark"] {
    --bg-color: #0b0d17;
    --card-bg: rgba(255, 255, 255, 0.05);
    --card-border: rgba(255, 255, 255, 0.1);
    --primary: #4cc9f0;
    --secondary: #7209b7;
    --accent: #f72585;
    --text-main: #ffffff;
    --text-muted: #a0a0b0;
    --font-main: 'Inter', sans-serif;
    --glass-blur: 12px;
    --bg-gradient: radial-gradient(circle at 10% 20%, rgba(76, 201, 240, 0.1) 0%, transparent 40%),
        radial-gradient(circle at 90% 80%, rgba(114, 9, 183, 0.1) 0%, transparent 40%);
}

[data-bs-theme="light"] {
    --bg-color: #f8f9fa;
    --card-bg: #ffffff;
    --card-border: rgba(0, 0, 0, 0.1);
    --primary: #007bff;
    --secondary: #6610f2;
    --accent: #d63384;
    --text-main: #212529;
    --text-muted: #6c757d;
    --bg-gradient: radial-gradient(circle at 10% 20%, rgba(0, 123, 255, 0.05) 0%, transparent 40%),
        radial-gradient(circle at 90% 80%, rgba(102, 16, 242, 0.05) 0%, transparent 40%);
}

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

body {
    font-family: var(--font-main);
    background-color: var(--bg-color);
    color: var(--text-main);
    line-height: 1.6;
    overflow-x: hidden;
    background-image: var(--bg-gradient);
    min-height: 100vh;
}

/* Modal Styles */
.modal-overlay {
    display: none;
    position: fixed;
    z-index: 1000;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.7);
    backdrop-filter: blur(5px);
    align-items: center;
    justify-content: center;
}

.modal-box {
    background-color: var(--bg-color);
    background-image: var(--bg-gradient);
    border: 1px solid var(--card-border);
    width: 90%;
    max-width: 500px;
    border-radius: 20px;
    padding: 30px;
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.4);
    position: relative;
    color: var(--text-main);
}

.modal-header {
    margin-bottom: 25px;
    text-align: center;
    display: block;
}

.modal-header h2 {
    font-size: 1.8rem;
}

.close-modal {
    position: absolute;
    top: 20px;
    right: 20px;
    font-size: 24px;
    cursor: pointer;
    color: var(--text-muted);
    transition: color 0.3s;
}

.close-modal:hover {
    color: var(--accent);
}

.form-group {
    margin-bottom: 20px;
}

.form-group label {
    display: block;
    margin-bottom: 8px;
    color: var(--text-muted);
    font-size: 0.9rem;
}

.form-control {
    width: 100%;
    padding: 12px 15px;
    background: var(--card-bg);
    border: 1px solid var(--card-border);
    border-radius: 10px;
    color: var(--text-main);
    font-size: 1rem;
    transition: all 0.3s;
}

.form-control:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 2px rgba(76, 201, 240, 0.2);
}

.radio-group {
    display: flex;
    gap: 20px;
    margin-bottom: 15px;
}

.radio-item {
    display: flex;
    align-items: center;
    gap: 8px;
    cursor: pointer;
}

.radio-item input {
    cursor: pointer;
    accent-color: var(--primary);
}

#cui-group {
    display: none;
    transition: all 0.3s ease;
}

.modal-footer {
    margin-top: 30px;
    display: flex;
    gap: 15px;
}

.btn-confirm {
    flex: 1;
    background: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);
    color: white;
    border: none;
    padding: 14px;
    border-radius: 12px;
    font-weight: 700;
    cursor: pointer;
    transition: all 0.3s;
}

.btn-confirm:hover {
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(76, 201, 240, 0.4);
}

.btn-cancel {
    background: transparent;
    color: var(--text-muted);
    border: 1px solid var(--card-border);
    padding: 14px 20px;
    border-radius: 12px;
    cursor: pointer;
    transition: all 0.3s;
}

.btn-cancel:hover {
    background: rgba(255, 255, 255, 0.05);
    color: var(--text-main);
}