:root {
    --primary-color: #2d8659;
    --primary-dark: #246b4a;
    --primary-light: #3da372;
    --text-dark: #2c3e50;
    --text-light: #6c757d;
    --bg-light: #f8f9fa;
    --success-color: #28a745;
    --shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 15px 50px rgba(0, 0, 0, 0.15);
}

* {
    transition: all 0.3s ease;
}

body {
    font-family: 'Helvetica', Arial, sans-serif;
    background: linear-gradient(135deg, #f5f7fa 0%, #e8f5e9 100%);
    min-height: 100vh;
    color: var(--text-dark);
}

.page-wrapper {
    min-height: 100vh;
    padding: 10px 0;
}

@media (min-width: 768px) {
    .page-wrapper {
        padding: 20px 0;
    }
}

.form-card,
.scan-card {
    border-radius: 20px;
    overflow: hidden;
    background: white;
    animation: fadeInUp 0.6s ease;
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.logo-section {
    padding: 10px 0;
}

@media (min-width: 768px) {
    .logo-section {
        padding: 20px 0;
    }
}

.logo {
    max-width: 200px;
    height: auto;
    filter: drop-shadow(0 4px 8px rgba(0, 0, 0, 0.1));
}

@media (min-width: 768px) {
    .logo {
        max-width: 280px;
    }
}

.welcome-badge {
    display: inline-block;
    background: linear-gradient(135deg, var(--primary-color), var(--primary-light));
    color: white;
    padding: 8px 20px;
    border-radius: 50px;
    font-size: 14px;
    font-weight: 600;
    margin-top: 10px;
    box-shadow: 0 4px 15px rgba(45, 134, 89, 0.3);
}

.page-title {
    color: var(--primary-color);
    font-size: 32px;
    font-weight: 700;
    margin-bottom: 15px;
}

.intro-text {
    color: var(--text-light);
    font-size: 16px;
    line-height: 1.7;
}

.project-name {
    color: var(--primary-color);
    font-weight: 600;
}

.form-label {
    color: var(--text-dark);
    font-weight: 600;
    font-size: 14px;
    margin-bottom: 8px;
    display: block;
}

.form-label i {
    color: var(--primary-color);
    width: 20px;
}

.form-control,
.form-select {
    border: 2px solid #e0e0e0;
    border-radius: 10px;
    padding: 12px 16px;
    font-size: 15px;
    transition: all 0.3s ease;
}

.form-control:focus,
.form-select:focus {
    border-color: var(--primary-color);
    box-shadow: 0 0 0 0.25rem rgba(45, 134, 89, 0.15);
    transform: translateY(-2px);
}

.form-control-lg,
.form-select-lg {
    padding: 14px 18px;
    font-size: 16px;
}

.submit-btn {
    background: linear-gradient(135deg, var(--primary-color), var(--primary-light));
    border: none;
    border-radius: 12px;
    font-size: 18px;
    font-weight: 600;
    padding: 16px;
    box-shadow: 0 6px 20px rgba(45, 134, 89, 0.3);
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
}

.submit-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(45, 134, 89, 0.4);
    background: linear-gradient(135deg, var(--primary-dark), var(--primary-color));
}

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

.qr-section {
    animation: fadeIn 0.5s ease;
}

@keyframes fadeIn {
    from {
        opacity: 0;
    }
    to {
        opacity: 1;
    }
}

.success-icon {
    font-size: 80px;
    color: var(--success-color);
    animation: scaleIn 0.5s ease;
}

@keyframes scaleIn {
    from {
        transform: scale(0);
    }
    to {
        transform: scale(1);
    }
}

.success-title {
    color: var(--primary-color);
    font-size: 36px;
    font-weight: 700;
}

.thank-you-text {
    font-size: 18px;
    color: var(--text-dark);
    line-height: 1.7;
}

.qr-instruction {
    font-size: 16px;
    color: var(--text-light);
    font-weight: 500;
}

.qr-container {
    background: white;
    padding: 20px;
    border-radius: 15px;
    display: inline-block;
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.1);
    margin: 20px 0;
}

#qrcode {
    display: block;
    margin: 0 auto;
    max-width: 100%;
}

.qr-code-text {
    margin-top: 15px;
    font-size: 13px;
    color: var(--text-light);
    word-break: break-all;
    font-family: monospace;
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary-color), var(--primary-light));
    border: none;
    border-radius: 10px;
    font-weight: 600;
    box-shadow: 0 4px 15px rgba(45, 134, 89, 0.3);
    transition: all 0.3s ease;
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(45, 134, 89, 0.4);
    background: linear-gradient(135deg, var(--primary-dark), var(--primary-color));
}

.text-danger {
    color: #dc3545 !important;
}

@media (max-width: 768px) {
    .page-title {
        font-size: 26px;
    }
    
    .logo {
        max-width: 200px;
    }
    
    .form-card,
    .scan-card {
        margin: 10px;
        border-radius: 15px;
    }
    
    .page-wrapper {
        padding: 10px 0;
    }
    
    .success-icon {
        font-size: 60px;
    }
    
    .success-title {
        font-size: 28px;
    }
    
    .thank-you-text {
        font-size: 16px;
    }
    
    .qr-instruction {
        font-size: 14px;
    }
    
    .qr-container {
        padding: 15px;
        margin: 15px 0;
    }
    
    #qrcode canvas,
    #qrcode img {
        max-width: 250px;
        height: auto;
    }
}

.hidden {
    display: none !important;
}