/* Color Variables */
:root {
    --navy-blue: #001F3F;
    --safety-orange: #FF851B;
    --off-white: #F8F9FA;
    --white: #FFFFFF;
    --text-dark: #2C3E50;
    --text-light: #6C757D;
    --border-color: #DEE2E6;
    --test-button-size: 70px;
}

/* Reset and Base Styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    line-height: 1.6;
    color: var(--text-dark);
    background-color: var(--off-white);
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* Navigation */
.navbar {
    background-color: var(--navy-blue);
    padding: 1rem 0;
    position: fixed;
    width: 100%;
    top: 0;
    z-index: 1000;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
}

.navbar .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.nav-brand {
    font-size: 1.5rem;
    font-weight: bold;
    color: var(--white);
    letter-spacing: 1px;
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: 2rem;
}

.nav-menu a {
    color: var(--white);
    text-decoration: none;
    font-weight: 500;
    transition: color 0.3s ease;
}

.nav-menu a:hover {
    color: var(--safety-orange);
}

.nav-menu a.test-link-nav {
    background-color: var(--safety-orange);
    padding: 0.5rem 1rem;
    border-radius: 6px;
    font-weight: 700;
    transition: all 0.3s ease;
}

.nav-menu a.test-link-nav:hover {
    background-color: #FF9933;
    color: var(--white);
    transform: scale(1.05);
}

/* Hero Section */
.hero {
    position: relative;
    height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, var(--navy-blue) 0%, #003d7a 100%);
    overflow: hidden;
    margin-top: 60px;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-image: 
        url('data:image/svg+xml;utf8,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 1200 200"><path fill="%23FF851B" fill-opacity="0.1" d="M0,100 Q300,150 600,100 T1200,100 L1200,200 L0,200 Z"></path></svg>');
    background-size: cover;
    background-position: bottom;
    opacity: 0.3;
}

.hero-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: radial-gradient(circle at 30% 50%, rgba(255, 133, 27, 0.1) 0%, transparent 50%);
}

.hero-content {
    position: relative;
    z-index: 2;
    text-align: center;
    color: var(--white);
    max-width: 800px;
    padding: 0 20px;
}

.hero-content h1 {
    font-size: 3.5rem;
    margin-bottom: 1rem;
    font-weight: 700;
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.3);
}

.hero-content p {
    font-size: 1.5rem;
    margin-bottom: 2rem;
    opacity: 0.95;
}

.wave-decoration {
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    height: 150px;
    background-image: 
        url('data:image/svg+xml;utf8,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 1200 120"><path fill="%23F8F9FA" d="M0,50 Q300,0 600,50 T1200,50 L1200,120 L0,120 Z"></path></svg>');
    background-size: cover;
    background-position: top;
}

/* Buttons */
.btn-primary, .btn-secondary {
    display: inline-block;
    padding: 12px 30px;
    border-radius: 8px;
    text-decoration: none;
    font-weight: 600;
    transition: all 0.3s ease;
    border: none;
    cursor: pointer;
    font-size: 1rem;
}

.btn-primary {
    background-color: var(--safety-orange);
    color: var(--white);
}

.btn-primary:hover {
    background-color: #e67700;
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(255, 133, 27, 0.3);
}

.btn-secondary {
    background-color: transparent;
    color: var(--safety-orange);
    border: 2px solid var(--safety-orange);
}

.btn-secondary:hover {
    background-color: var(--safety-orange);
    color: var(--white);
}

/* Sections */
.section {
    padding: 80px 0;
}

.section-alt {
    background-color: var(--white);
}

.section-title {
    text-align: center;
    font-size: 2.5rem;
    color: var(--navy-blue);
    margin-bottom: 3rem;
    position: relative;
    padding-bottom: 1rem;
}

.section-title::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 80px;
    height: 4px;
    background-color: var(--safety-orange);
    border-radius: 2px;
}

/* Cards */
.cards-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
}

.card {
    background: var(--white);
    padding: 2rem;
    border-radius: 12px;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.07);
    transition: all 0.3s ease;
    border: 1px solid var(--border-color);
}

.card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 25px rgba(0, 31, 63, 0.15);
}

.card-icon {
    font-size: 3rem;
    margin-bottom: 1rem;
}

.card h3 {
    color: var(--navy-blue);
    margin-bottom: 1rem;
    font-size: 1.5rem;
}

.card p {
    color: var(--text-light);
    margin-bottom: 1.5rem;
}

/* Blog Cards */
.blog-card {
    position: relative;
}

.blog-date {
    color: var(--safety-orange);
    font-size: 0.9rem;
    font-weight: 600;
    margin-bottom: 0.5rem;
}

.read-more {
    color: var(--safety-orange);
    text-decoration: none;
    font-weight: 600;
    transition: color 0.3s ease;
}

.read-more:hover {
    color: var(--navy-blue);
}

/* Exam Section */
.exam-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 3rem;
    align-items: start;
}

.exam-info h3 {
    color: var(--navy-blue);
    font-size: 2rem;
    margin-bottom: 1rem;
}

.exam-info p {
    color: var(--text-light);
    margin-bottom: 2rem;
    font-size: 1.1rem;
}

.feature-list {
    list-style: none;
    margin-bottom: 2rem;
}

.feature-list li {
    padding: 0.5rem 0;
    color: var(--text-dark);
    font-size: 1.1rem;
}

.exam-demo .card {
    background: var(--off-white);
}

.exam-demo h4 {
    color: var(--navy-blue);
    margin-bottom: 1.5rem;
    font-size: 1.3rem;
}

.question {
    margin-top: 1rem;
}

.question p {
    color: var(--text-dark);
    margin-bottom: 1rem;
    font-weight: 500;
}

.options {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

.options label {
    padding: 0.75rem;
    background: var(--white);
    border-radius: 8px;
    cursor: pointer;
    transition: all 0.3s ease;
    border: 2px solid var(--border-color);
}

.options label:hover {
    border-color: var(--safety-orange);
    background: rgba(255, 133, 27, 0.05);
}

.options input[type="radio"] {
    margin-right: 0.5rem;
}

/* Contact Section */
.contact-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 3rem;
}

.contact-info {
    display: flex;
    flex-direction: column;
    gap: 2rem;
}

.contact-item {
    display: flex;
    align-items: start;
    gap: 1rem;
}

.contact-icon {
    font-size: 2rem;
}

.contact-item h4 {
    color: var(--navy-blue);
    margin-bottom: 0.5rem;
}

.contact-item p {
    color: var(--text-light);
}

.contact-form {
    background: var(--off-white);
    padding: 2rem;
    border-radius: 12px;
}

.form-group {
    margin-bottom: 1.5rem;
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 12px;
    border: 2px solid var(--border-color);
    border-radius: 8px;
    font-size: 1rem;
    font-family: inherit;
    transition: border-color 0.3s ease;
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--safety-orange);
}

/* Footer */
.footer {
    background-color: var(--navy-blue);
    color: var(--white);
    padding: 3rem 0 1rem;
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    margin-bottom: 2rem;
}

.footer-section h4 {
    margin-bottom: 1rem;
    color: var(--safety-orange);
}

.footer-section ul {
    list-style: none;
}

.footer-section ul li {
    margin-bottom: 0.5rem;
}

.footer-section a {
    color: var(--white);
    text-decoration: none;
    opacity: 0.8;
    transition: opacity 0.3s ease;
}

.footer-section a:hover {
    opacity: 1;
    color: var(--safety-orange);
}

.footer-bottom {
    text-align: center;
    padding-top: 2rem;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    opacity: 0.7;
}

/* Bottom Navigation Bar (Mobile) */
.bottom-nav {
    display: none;
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    background-color: var(--white);
    box-shadow: 0 -2px 10px rgba(0, 0, 0, 0.1);
    padding: 0.75rem 0;
    z-index: 1000;
}

.bottom-nav-container {
    display: flex;
    justify-content: space-around;
    align-items: center;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 1rem;
}

.bottom-nav-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-decoration: none;
    color: var(--text-light);
    transition: all 0.3s ease;
    padding: 0.5rem 1rem;
    min-width: 80px;
}

.bottom-nav-item:hover {
    color: var(--safety-orange);
}

.bottom-nav-item.active {
    color: var(--safety-orange);
}

.bottom-nav-icon {
    font-size: 1.5rem;
    margin-bottom: 0.25rem;
}

.bottom-nav-label {
    font-size: 0.75rem;
    font-weight: 600;
    text-align: center;
}

/* TEST button styling - larger and orange */
.bottom-nav-item.test-btn {
    background: linear-gradient(135deg, var(--safety-orange) 0%, #e67700 100%);
    color: var(--white);
    border-radius: 50%;
    width: var(--test-button-size);
    height: var(--test-button-size);
    padding: 0;
    box-shadow: 0 4px 12px rgba(255, 133, 27, 0.4);
    transform: translateY(-10px);
    justify-content: center;
    align-items: center;
    position: relative;
    display: flex;
}

.bottom-nav-item.test-btn:hover {
    color: var(--white);
    transform: translateY(-12px) scale(1.05);
    box-shadow: 0 6px 16px rgba(255, 133, 27, 0.5);
}

.bottom-nav-item.test-btn .bottom-nav-icon {
    display: none;
}

.bottom-nav-item.test-btn .bottom-nav-label {
    font-size: 1rem;
    font-weight: 700;
    position: static;
    margin: 0;
}

/* Responsive Design */
@media (max-width: 768px) {
    /* Hide default navbar menu on mobile */
    .nav-menu {
        display: none;
    }
    
    /* Show bottom navigation on mobile */
    .bottom-nav {
        display: block;
    }
    
    /* Add padding to body to prevent content from being hidden behind bottom nav */
    body {
        padding-bottom: 80px;
    }
    
    .hero-content h1 {
        font-size: 2rem;
    }
    
    .hero-content p {
        font-size: 1.1rem;
    }
    
    .cards-grid {
        grid-template-columns: 1fr;
    }
    
    .exam-content,
    .contact-content {
        grid-template-columns: 1fr;
    }
    
    .section-title {
        font-size: 2rem;
    }
    
    .navbar .container {
        justify-content: center;
    }
}

/* Smooth Scrolling */
html {
    scroll-behavior: smooth;
}

/* Wave Animation */
@keyframes wave {
    0%, 100% {
        transform: translateY(0);
    }
    50% {
        transform: translateY(-10px);
    }
}

.wave-decoration {
    animation: wave 6s ease-in-out infinite;
}