/* ===== PHP Functions Styles ===== */
:root {
    --bg-color: #1f1f1f;
    --card-bg: #2b2b2b;
    --accent: #00bfa6;
    --error: #ff4d4d;
    --text-color: #f5f5f5;
    --font: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
}

body {
    font-family: var(--font);
    background-color: var(--bg-color);
    color: var(--text-color);
    margin: 0;
    padding: 0;
}

.php-functions-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 20px 30px;
    background-color: #252525;
    border-bottom: 2px solid var(--accent);
}

.php-functions-header h1 {
    margin: 0;
    font-size: 1.8em;
}

.back-to-projects {
    background-color: var(--accent);
    border: none;
    color: white;
    padding: 8px 15px;
    border-radius: 6px;
    cursor: pointer;
    transition: 0.3s;
}

.back-to-projects:hover {
    background-color: #009e8a;
}

.php-functions-wrapper {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 20px;
    padding: 30px;
}

.php-functions-card {
    background-color: var(--card-bg);
    padding: 20px;
    border-radius: 10px;
    width: 280px;
    text-align: center;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    box-shadow: 0 2px 6px rgba(0, 0, 0, 0.4);
}

.php-functions-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.6);
}

.result-card {
    width: 400px;
    margin: 80px auto;
}

input[type="text"],
input[type="number"],
input[type="email"] {
    width: 90%;
    padding: 8px;
    margin-bottom: 10px;
    border-radius: 5px;
    border: 1px solid #444;
    background-color: #333;
    color: white;
}

button {
    background-color: var(--accent);
    color: white;
    border: none;
    padding: 8px 15px;
    border-radius: 6px;
    cursor: pointer;
    transition: 0.3s;
}

button:hover {
    background-color: #009e8a;
}

.error-text {
    color: var(--error);
    font-size: 0.9em;
    margin-top: -5px;
}