:root {
    --primary: #fec200;
    --secondary: #ff00e6;
    --dark: #0a0a1a;
    --light: #e0e0ff;
    --primary-color: #fec200;
    --primary-light: #feda00;
    --primary-dark: #e6ac00;
    --dark-900: #111827;
    --dark-800: #1f2937;
    --dark-700: #374151;
    --dark-600: #4b5563;
    --dark-500: #6b7280;
    --dark-400: #9ca3af;
    --dark-300: #d1d5db;
    --light-100: #f3f4f6;
    --light-200: #e5e7eb;
    --success: #10b981;
    --error: #ef4444;
    --warning: #f59e0b;
    --info: #3b82f6;
    --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.05);
    --shadow: 0 4px 6px rgba(0, 0, 0, 0.1), 0 1px 3px rgba(0, 0, 0, 0.06);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
    --transition: all 0.3s ease;
    --border-radius: 8px;
    --border-radius-lg: 12px;
    --border-radius-xl: 16px;
    --container-width: 1200px;
    --font-main: 'Montserrat', sans-serif;
    --font-secondary: 'Roboto', sans-serif;
}

body {
    font-family: var(--font-secondary);
    background-color: var(--dark-900);
    color: var(--light-100);
    line-height: 1.6;
    overflow-x: hidden;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

.hero {
    padding: 8rem 0 5rem;
    position: relative;
    background: linear-gradient(to bottom, var(--dark-900), var(--dark-800));
    overflow: hidden;
    flex: 1;
    display: flex;
    align-items: center;
}

.hero-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url('images/truck-pattern.svg') repeat;
    opacity: 0.2;
    pointer-events: none;
    z-index: 1;
}

.container {
    position: relative;
    width: 100%;
    max-width: 800px;
    padding: 40px;
    z-index: 10;
    margin: 0 auto;
}

.contact-card {
    background: rgba(10, 10, 26, 0.8);
    backdrop-filter: blur(10px);
    border-radius: 20px;
    padding: 40px;
    box-shadow:
        0 0 20px #fec2004d,
        0 0 40px rgba(255, 0, 230, 0.2);
    border: 1px solid #fec20033;
    position: relative;
    overflow: hidden;
}

h1 {
    font-family: 'Orbitron', sans-serif;
    color: var(--primary);
    text-align: center;
    margin-bottom: 40px;
    font-size: 2.5rem;
    text-shadow: 0 0 10px rgba(0, 247, 255, 0.5);
    letter-spacing: 3px;
}

.form-group {
    margin-bottom: 30px;
    position: relative;
    z-index: 1000;
}

label {
    display: block;
    margin-bottom: 10px;
    font-weight: 500;
    color: var(--primary);
    font-size: 1.1rem;
}

input,
textarea,
select {
    width: 100%;
    padding: 15px;
    background: rgba(0, 0, 0, 0.3);
    border: 1px solid rgba(0, 247, 255, 0.3);
    border-radius: 8px;
    color: var(--light);
    font-size: 1rem;
    transition: all 0.3s ease;
}

input:focus,
textarea:focus,
select:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 15px rgba(0, 247, 255, 0.5);
    background: rgba(0, 0, 0, 0.5);
}

textarea {
    min-height: 150px;
    resize: vertical;
}

.submit-btn {
    background: linear-gradient(45deg, var(--primary), var(--secondary));
    color: var(--dark);
    border: none;
    padding: 15px 30px;
    font-size: 1.1rem;
    font-weight: bold;
    border-radius: 50px;
    cursor: pointer;
    transition: all 0.3s ease;
    display: block;
    margin: 40px auto 0;
    font-family: 'Orbitron', sans-serif;
    letter-spacing: 1px;
    position: relative;
    overflow: hidden;
    z-index: 1;
    width: 100%;
    max-width: 300px;
}

.submit-btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(45deg, var(--secondary), var(--primary));
    opacity: 0;
    transition: opacity 0.3s ease;
    z-index: -1;
}

.submit-btn:hover::before {
    opacity: 1;
}

.submit-btn:hover {
    transform: translateY(-3px);
    box-shadow:
        0 5px 15px rgba(0, 247, 255, 0.4),
        0 5px 30px rgba(255, 0, 230, 0.3);
}

.submit-btn:active {
    transform: translateY(0);
}

/* Styles pour les écrans PC */
@media (min-width: 1025px) {
    .container {
        padding: 40px;
    }
    
    .contact-card {
        padding: 40px;
    }
    
    /* Correction spécifique pour PC */
    .hero {
        min-height: 100vh;
        display: flex;
        align-items: center;
    }
}

/* Styles pour les écrans mobiles */
@media (max-width: 768px) {
    .container {
        padding: 20px;
    }

    .contact-card {
        padding: 30px;
    }

    h1 {
        font-size: 2rem;
    }
    
    .hero {
        padding: 6rem 0 3rem;
    }
}

/* Styles pour les écrans tablettes */
@media (min-width: 769px) and (max-width: 1024px) {
    .container {
        padding: 30px;
    }
    
    .contact-card {
        padding: 35px;
    }
}

/* Styles pour les messages d'erreur */
.error-message {
    color: var(--error);
    font-size: 0.9rem;
    margin-top: 5px;
    display: none;
}

.form-group.error input,
.form-group.error select,
.form-group.error textarea {
    border-color: var(--error);
}

.form-group.error .error-message {
    display: block;
}

/* Animation de chargement */
.loading {
    display: inline-block;
    width: 20px;
    height: 20px;
    border: 3px solid rgba(255,255,255,.3);
    border-radius: 50%;
    border-top-color: #fff;
    animation: spin 1s ease-in-out infinite;
}

@keyframes spin {
    to { transform: rotate(360deg); }
}