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

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    line-height: 1.6;
    color: #1f2937;
}

/* Navigation */
.navbar {
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
    position: sticky;
    top: 0;
    z-index: 1000;
}

.nav-link {
    color: #4b5563;
    text-decoration: none;
    font-weight: 500;
    transition: color 0.3s ease;
}

.nav-link:hover {
    color: #2563eb;
}

/* Buttons */
.btn-primary {
    background: #2563eb;
    color: white;
    padding: 0.5rem 1.5rem;
    border-radius: 0.5rem;
    text-decoration: none;
    font-weight: 600;
    transition: all 0.3s ease;
    display: inline-block;
}

.btn-primary:hover {
    background: #1d4ed8;
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(37, 99, 235, 0.3);
}

.btn-primary-large {
    background: #2563eb;
    color: white;
    padding: 1rem 2rem;
    border-radius: 0.5rem;
    text-decoration: none;
    font-weight: 600;
    transition: all 0.3s ease;
    display: inline-block;
    font-size: 1.1rem;
}

.btn-primary-large:hover {
    background: #1d4ed8;
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(37, 99, 235, 0.3);
}

.btn-secondary-large {
    background: white;
    color: #2563eb;
    padding: 1rem 2rem;
    border-radius: 0.5rem;
    text-decoration: none;
    font-weight: 600;
    border: 2px solid #2563eb;
    transition: all 0.3s ease;
    display: inline-block;
    font-size: 1.1rem;
}

.btn-secondary-large:hover {
    background: #2563eb;
    color: white;
    transform: translateY(-2px);
}

.btn-white {
    background: white;
    color: #2563eb;
    padding: 1rem 2rem;
    border-radius: 0.5rem;
    text-decoration: none;
    font-weight: 600;
    transition: all 0.3s ease;
    display: inline-block;
}

.btn-white:hover {
    background: #f3f4f6;
    transform: translateY(-2px);
}

.btn-outline-white {
    background: transparent;
    color: white;
    padding: 1rem 2rem;
    border-radius: 0.5rem;
    text-decoration: none;
    font-weight: 600;
    border: 2px solid white;
    transition: all 0.3s ease;
    display: inline-block;
}

.btn-outline-white:hover {
    background: white;
    color: #2563eb;
    transform: translateY(-2px);
}

/* Hero Section */
.hero {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url('data:image/svg+xml,<svg width="100" height="100" xmlns="http://www.w3.org/2000/svg"><defs><pattern id="grid" width="100" height="100" patternUnits="userSpaceOnUse"><path d="M 100 0 L 0 0 0 100" fill="none" stroke="rgba(255,255,255,0.1)" stroke-width="1"/></pattern></defs><rect width="100" height="100" fill="url(%23grid)"/></svg>');
    opacity: 0.3;
}

.hero > div {
    position: relative;
    z-index: 1;
}

/* Animations */
@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.animate-fade-in {
    animation: fadeIn 0.8s ease-out;
}

.animate-fade-in-delay {
    animation: fadeIn 0.8s ease-out 0.2s both;
}

.animate-fade-in-delay-2 {
    animation: fadeIn 0.8s ease-out 0.4s both;
}

/* Feature Cards */
.feature-card {
    background: white;
    padding: 2rem;
    border-radius: 1rem;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.05);
    transition: all 0.3s ease;
}

.feature-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.1);
}

.feature-icon {
    width: 60px;
    height: 60px;
    border-radius: 0.75rem;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    margin-bottom: 1.5rem;
}

/* Use Case Cards */
.use-case-card {
    background: white;
    padding: 2rem;
    border-radius: 1rem;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.05);
    transition: all 0.3s ease;
    border-left: 4px solid #2563eb;
}

.use-case-card:hover {
    transform: translateX(5px);
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.1);
}

/* Exam Type Cards */
.exam-type-card {
    background: white;
    padding: 1.5rem;
    border-radius: 0.75rem;
    text-align: center;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.05);
    transition: all 0.3s ease;
}

.exam-type-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 20px rgba(0, 0, 0, 0.1);
}

.exam-type-icon {
    width: 70px;
    height: 70px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.75rem;
    margin: 0 auto 1rem;
}

/* Question Type Badges */
.question-type-badge {
    background: white;
    padding: 1rem;
    border-radius: 0.5rem;
    text-align: center;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.05);
    transition: all 0.3s ease;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.5rem;
}

.question-type-badge:hover {
    transform: translateY(-3px);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
}

.question-type-badge i {
    font-size: 1.5rem;
    color: #2563eb;
}

.question-type-badge span {
    font-weight: 600;
    color: #4b5563;
    font-size: 0.875rem;
}

/* Benefit Items */
.benefit-item {
    position: relative;
    padding-left: 4rem;
}

.benefit-number {
    position: absolute;
    left: 0;
    top: 0;
    font-size: 3rem;
    font-weight: 800;
    color: #e5e7eb;
    line-height: 1;
}

/* Security Features */
.security-feature {
    text-align: center;
    padding: 1.5rem;
    background: rgba(255, 255, 255, 0.05);
    border-radius: 0.75rem;
    transition: all 0.3s ease;
}

.security-feature:hover {
    background: rgba(255, 255, 255, 0.1);
    transform: translateY(-5px);
}

/* Contact Icons */
.contact-icon {
    width: 60px;
    height: 60px;
    background: #2563eb;
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    margin: 0 auto 1rem;
}

/* Form Styles */
.form-label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 600;
    color: #374151;
}

.form-input {
    width: 100%;
    padding: 0.75rem;
    border: 2px solid #e5e7eb;
    border-radius: 0.5rem;
    font-size: 1rem;
    transition: all 0.3s ease;
}

.form-input:focus {
    outline: none;
    border-color: #2563eb;
    box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
}

.contact-form {
    background: #f9fafb;
    padding: 2rem;
    border-radius: 1rem;
}

/* Mobile Menu */
.mobile-menu {
    padding: 1rem 0;
    border-top: 1px solid #e5e7eb;
}

/* Responsive Adjustments */
/* Medium-large screens (1024px to 1276px) - reduce navbar spacing */
@media (min-width: 1024px) and (max-width: 1276px) {
    .navbar .container {
        padding-left: 0.25rem !important;
        padding-right: 0.25rem !important;
    }
    
    .navbar .container > div {
        padding-left: 0 !important;
        margin-left: 0 !important;
    }
    
    .navbar .flex.items-center.space-x-2 {
        margin-left: 0 !important;
        padding-left: 0 !important;
    }
    
    /* Reduce spacing between nav links */
    .navbar .hidden.lg\:flex.items-center.space-x-8 > * + * {
        margin-left: 0.75rem !important;
    }
    
    .navbar .nav-link {
        font-size: 0.875rem !important;
        padding: 0.25rem 0.5rem !important;
    }
    
    .navbar .btn-primary {
        font-size: 0.875rem !important;
        padding: 0.5rem 1rem !important;
    }
    
    .navbar .text-2xl {
        font-size: 1.5rem !important;
    }
    
    .navbar .text-3xl {
        font-size: 1.75rem !important;
    }
}

/* Small screens (mobile) */
@media (max-width: 768px) {
    .hero h1 {
        font-size: 2.5rem;
    }
    
    .hero p {
        font-size: 1.125rem;
    }
    
    .benefit-item {
        padding-left: 3rem;
    }
    
    .benefit-number {
        font-size: 2.5rem;
    }
}

/* Smooth Scroll */
@media (prefers-reduced-motion: no-preference) {
    html {
        scroll-behavior: smooth;
    }
}

/* Loading Animation */
@keyframes pulse {
    0%, 100% {
        opacity: 1;
    }
    50% {
        opacity: 0.5;
    }
}

.loading {
    animation: pulse 2s cubic-bezier(0.4, 0, 0.6, 1) infinite;
}