:root {
    --primary-color: #007bff;
    --primary-hover: #0056b3;
    --secondary-color: #6c757d;
    --background-color: #f8f9fa;
    --card-bg: #ffffff;
    --text-color: #333333;
    --border-color: #dee2e6;
    --error-color: #dc3545;
    --success-color: #28a745;
    --font-family-en: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    --font-family-ur: 'Noto Nastaliq Urdu', 'Arial', sans-serif; /* Fallback to Arial if Noto isn't available */
}

html {
    scroll-behavior: smooth;
}

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

body {
    font-family: var(--font-family-en);
    background-color: var(--background-color);
    color: var(--text-color);
    line-height: 1.6;
    transition: all 0.3s ease;
    display: flex;
    flex-direction: column;
    min-height: 100vh;
}

/* Navbar */
.navbar {
    background-color: var(--card-bg);
    box-shadow: 0 2px 4px rgba(0,0,0,0.1);
    padding: 1rem 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    position: sticky;
    top: 0;
    z-index: 1000;
}

.nav-toggle {
    display: none;
    background: transparent;
    border: 1px solid var(--border-color);
    color: var(--text-color);
    padding: 0.4rem 0.6rem;
    border-radius: 4px;
    margin-left: 0.5rem;
    cursor: pointer;
}

.logo {
    font-size: 1.5rem;
    font-weight: bold;
    color: var(--primary-color);
    text-decoration: none;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.nav-links {
    display: flex;
    gap: 1.5rem;
    list-style: none;
}

.nav-links a {
    text-decoration: none;
    color: var(--text-color);
    font-weight: 500;
    transition: color 0.2s;
}

.nav-links a:hover {
    color: var(--primary-color);
}

.nav-links a.active {
    color: var(--primary-color);
    border-bottom: 2px solid var(--primary-color);
    padding-bottom: 2px;
}

.lang-btn {
    background-color: transparent;
    border: 1px solid var(--primary-color);
    color: var(--primary-color);
    padding: 0.5rem 1rem;
    border-radius: 4px;
    cursor: pointer;
    font-weight: bold;
    transition: all 0.2s;
}

.lang-btn:hover {
    background-color: var(--primary-color);
    color: white;
}

/* Hero Section */
.hero {
    background: linear-gradient(135deg, var(--primary-color), var(--primary-hover));
    color: white;
    text-align: center;
    padding: 4rem 2rem;
    margin-bottom: 2rem;
}

.hero h1 {
    font-size: 2.5rem;
    margin-bottom: 1rem;
}

.hero p {
    font-size: 1.2rem;
    margin-bottom: 2rem;
    opacity: 0.9;
}

.cta-btn {
    background-color: white;
    color: var(--primary-color);
    border: none;
    padding: 0.8rem 2rem;
    font-size: 1.1rem;
    border-radius: 50px;
    cursor: pointer;
    font-weight: bold;
    transition: transform 0.2s, box-shadow 0.2s;
}

.cta-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 8px rgba(0,0,0,0.2);
}

/* About Section */
.about-section {
    background-color: var(--card-bg);
    padding: 4rem 0;
    margin-bottom: 2rem;
    text-align: center;
}

.about-desc {
    max-width: 800px;
    margin: 0 auto 3rem auto;
    font-size: 1.1rem;
    color: var(--secondary-color);
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    padding: 0 1rem;
}

.feature-card {
    padding: 2rem;
    border-radius: 8px;
    background-color: var(--background-color);
    border: 1px solid var(--border-color);
    transition: transform 0.3s ease;
}

.feature-card:hover {
    transform: translateY(-5px);
}

.feature-icon {
    font-size: 2.5rem;
    margin-bottom: 1rem;
}

.feature-card h3 {
    color: var(--primary-color);
    margin-bottom: 0.5rem;
}

.section-logo {
    display: flex;
    justify-content: center;
    align-items: center;
    margin-bottom: 1rem;
}
.section-logo img {
    max-height: 70px;
    height: auto;
    width: auto;
}
.section-logo .brand-text {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    font-weight: 700;
    color: var(--primary-color);
    font-size: 1.25rem;
}
.section-logo .logo-fallback {
    display: none;
    font-weight: 700;
    color: var(--primary-color);
    font-size: 1.25rem;
    align-items: center;
    gap: 0.5rem;
}

/* Section visibility helper */
.hidden {
    display: none !important;
}

/* Container */
.container {
    max-width: 800px;
    margin: 0 auto;
    padding: 0 1rem 4rem 1rem;
}

/* Cards */
.card {
    background-color: var(--card-bg);
    border-radius: 8px;
    padding: 2rem;
    margin-bottom: 2rem;
    box-shadow: 0 6px 18px rgba(0,0,0,0.06);
    border: 1px solid var(--border-color);
}

.section-title {
    margin-bottom: 1.5rem;
    color: var(--primary-color);
    border-bottom: 2px solid var(--background-color);
    padding-bottom: 0.5rem;
}

/* Form Elements */
.form-group {
    margin-bottom: 1.5rem;
}

.form-label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 500;
}

.form-control {
    width: 100%;
    padding: 0.8rem;
    border: 1px solid var(--border-color);
    border-radius: 4px;
    font-size: 1rem;
    transition: border-color 0.2s, box-shadow 0.2s;
}

.form-control:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(0,123,255,0.15);
}

/* Category Selection */
.category-buttons {
    display: flex;
    gap: 1rem;
    flex-wrap: wrap;
    margin-bottom: 2rem;
}

.category-btn {
    flex: 1;
    padding: 1rem;
    border: 2px solid var(--border-color);
    background-color: var(--card-bg);
    border-radius: 8px;
    cursor: pointer;
    font-size: 1rem;
    font-weight: 600;
    transition: all 0.2s;
    text-align: center;
}

.category-btn.active {
    border-color: var(--primary-color);
    background-color: #e7f1ff;
    color: var(--primary-color);
}

.category-btn:hover {
    border-color: var(--primary-color);
    transform: translateY(-2px);
}

/* Questions */
.question-card {
    background-color: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 1.5rem;
    margin-bottom: 1rem;
    animation: fadeIn 0.3s ease;
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(10px); }
    to { opacity: 1; transform: translateY(0); }
}

.sub-question {
    margin-top: 1rem;
    padding-left: 1rem;
    border-left: 3px solid var(--primary-color);
    display: none;
}

.sub-question.visible {
    display: block;
}

/* Submit Button */
.submit-btn {
    width: 100%;
    background-color: var(--primary-color);
    color: white;
    border: none;
    padding: 1rem;
    font-size: 1.2rem;
    border-radius: 8px;
    cursor: pointer;
    font-weight: bold;
    transition: background-color 0.2s;
    margin-top: 2rem;
}

.submit-btn:hover {
    background-color: var(--primary-hover);
}

.submit-btn:disabled,
.submit-btn.disabled {
    background-color: var(--secondary-color);
    cursor: not-allowed;
}

/* Validation Error */
.error-msg {
    color: var(--error-color);
    font-size: 0.9rem;
    margin-top: 0.5rem;
    display: none;
}

.form-control.error {
    border-color: var(--error-color);
}

/* Payment Page Specifics */
.payment-success-card {
    text-align: center;
    border-top: 5px solid var(--success-color);
}

.payment-success-icon {
    font-size: 4rem;
    color: var(--success-color);
    margin-bottom: 1rem;
}

.fee-display {
    background-color: #f8f9fa;
    padding: 1.5rem;
    border-radius: 8px;
    text-align: center;
    margin: 2rem 0;
}

.fee-amount {
    font-size: 2rem;
    font-weight: bold;
    color: var(--primary-color);
    margin: 0.5rem 0;
}

.demo-badge {
    background-color: #ffc107;
    color: #000;
    padding: 0.25rem 0.5rem;
    border-radius: 4px;
    font-size: 0.8rem;
    display: inline-block;
    margin-top: 0.5rem;
}

.payment-methods {
    display: flex;
    flex-direction: column;
    gap: 2rem;
}

.method-option {
    border: 1px solid var(--border-color);
    padding: 1.5rem;
    border-radius: 8px;
}

.method-title {
    font-weight: bold;
    margin-bottom: 1rem;
    display: block;
}

/* QR Code */

/* Footer */
.footer {
    background-color: #343a40;
    color: #f8f9fa;
    text-align: center;
    padding: 2rem 1rem;
    margin-top: auto;
}

/* Responsive */
@media (max-width: 768px) {
    .navbar {
        padding: 1rem;
    }
    
    .nav-links {
        display: none;
    }
    .nav-links.show {
        display: flex;
        position: absolute;
        top: 64px;
        right: 16px;
        background: var(--card-bg);
        box-shadow: 0 6px 18px rgba(0,0,0,0.08);
        padding: 0.75rem 1rem;
        border-radius: 8px;
        gap: 1rem;
    }
    .nav-toggle {
        display: inline-block;
    }
    
    .hero {
        padding: 3rem 1rem;
    }
    
    .hero h1 {
        font-size: 2rem;
    }
    
    .category-buttons {
        flex-direction: column;
    }
}