:root {
    --bg-dark: #1a1d21;
    --text-light: #f8f9fa;
    --card-bg: #2c2f33;
    --input-bg: #23272a;
    --border: #444;
    --accent: #e63946;
    --accent-hover: #d62936;
    --button-bg: #ffc107;
    --button-hover: #ffb300;
}

* {
    box-sizing: border-box;
}

body {
    background: var(--bg-dark);
    color: var(--text-light);
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Arial, sans-serif;
    line-height: 1.6;
    margin: 0;
    padding: 20px;
}

.container {
    max-width: 900px;
    margin: 0 auto;
    padding: 0 15px;
}

.card {
    background: var(--card-bg);
    border-radius: 12px;
    padding: 25px;
    margin-bottom: 20px;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.3);
}

h1 {
    margin-top: 0;
    margin-bottom: 10px;
    font-size: 2rem;
}

.text-center {
    text-align: center;
}

.mb-3 {
    margin-bottom: 1.5rem;
}

.mb-4 {
    margin-bottom: 2rem;
}

.mt-2 {
    margin-top: 0.75rem;
}

.mt-3 {
    margin-top: 1.5rem;
}

.mt-4 {
    margin-top: 2rem;
}

.p-3 {
    padding: 1.5rem;
}

/* Form Elements */
form label {
    display: block;
    margin-top: 20px;
    margin-bottom: 8px;
    font-weight: 600;
    font-size: 1.05rem;
}

form label:first-of-type {
    margin-top: 0;
}

input[type="text"],
input[type="email"],
textarea,
select {
    width: 100%;
    padding: 12px 15px;
    border-radius: 8px;
    border: 2px solid var(--border);
    background: var(--input-bg);
    color: var(--text-light);
    font-size: 1rem;
    transition: border-color 0.2s, background-color 0.2s;
    margin-bottom: 5px;
}

input[type="text"]:focus,
input[type="email"]:focus,
textarea:focus,
select:focus {
    outline: none;
    border-color: var(--accent);
    background: #2a2e32;
}

select {
    cursor: pointer;
}

/* Radio and Checkbox Groups */
input[type="radio"],
input[type="checkbox"] {
    width: auto;
    margin-right: 8px;
    margin-bottom: 0;
    cursor: pointer;
}

form > div {
    margin-bottom: 5px;
}

form > div label {
    display: inline-flex;
    align-items: center;
    margin-top: 8px;
    margin-bottom: 8px;
    font-weight: normal;
    font-size: 1rem;
    cursor: pointer;
    padding: 8px 0;
}

form > div label:hover {
    color: #fff;
}

/* Buttons */
button {
    background: var(--button-bg);
    border: none;
    padding: 14px 28px;
    color: #000;
    border-radius: 8px;
    cursor: pointer;
    font-weight: 700;
    font-size: 1rem;
    transition: background-color 0.2s, transform 0.1s;
}

button:hover {
    background: var(--button-hover);
    transform: translateY(-1px);
}

button:active {
    transform: translateY(0);
}

.btn-danger {
    background: var(--accent);
    color: white;
    padding: 10px 20px;
    font-size: 0.9rem;
}

.btn-danger:hover {
    background: var(--accent-hover);
}

/* Survey Card Specific */
.survey-card {
    background: var(--card-bg);
    padding: 40px;
    border-radius: 12px;
    max-width: 800px;
    margin: 40px auto;
    box-shadow: 0 8px 16px rgba(0, 0, 0, 0.4);
}

.hidden {
    display: none;
}

/* Status Message */
#status {
    font-weight: 600;
    font-size: 1.1rem;
    color: #4caf50;
}

/* Admin Panel */
pre {
    white-space: pre-wrap;
    word-wrap: break-word;
    background: var(--input-bg);
    padding: 15px;
    border-radius: 6px;
    margin: 15px 0;
    font-size: 0.9rem;
    overflow-x: auto;
}

strong {
    display: block;
    margin-bottom: 10px;
    font-size: 1.1rem;
    color: var(--button-bg);
}

/* Loading and Error States */
p {
    margin: 10px 0;
}

/* Responsive Design */
@media (max-width: 768px) {
    body {
        padding: 10px;
    }
    
    .survey-card {
        padding: 25px;
        margin: 20px auto;
    }
    
    .card {
        padding: 20px;
    }
    
    h1 {
        font-size: 1.5rem;
    }
    
    button {
        padding: 12px 20px;
    }
}

/* Better focus states for accessibility */
input:focus-visible,
select:focus-visible,
button:focus-visible {
    outline: 3px solid var(--accent);
    outline-offset: 2px;
}