:root {
    --primary-color: #1a2a47; /* Dark blue from logo */
    --secondary-color: #b2ea62; /* Lime green from logo */
    --accent-color: #ff8c00; /* Orange accent from pdf design */
    --text-color: #333333;
    --text-light: #ffffff;
    --bg-light: #f4f7f6;
    --transition: all 0.3s ease;
}

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

body {
    font-family: 'Inter', sans-serif;
    color: var(--text-color);
    line-height: 1.6;
    background-color: var(--bg-light);
}

a {
    text-decoration: none;
    color: inherit;
}

ul {
    list-style: none;
}

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

/* Header */
header {
    background-color: var(--primary-color);
    color: var(--text-light);
    position: fixed;
    width: 100%;
    top: 0;
    z-index: 1000;
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
}

.header-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 80px;
}

.logo img {
    height: 50px;
}

.nav-links {
    display: flex;
    gap: 25px;
}

.nav-links a {
    font-weight: 600;
    transition: var(--transition);
}

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

.header-actions {
    display: flex;
    align-items: center;
    gap: 20px;
}

.lang-switch button {
    background: none;
    border: none;
    color: var(--text-light);
    cursor: pointer;
    font-weight: 600;
    font-size: 14px;
    opacity: 0.6;
    transition: var(--transition);
}

.lang-switch button.active {
    opacity: 1;
    color: var(--secondary-color);
}

.lang-switch span {
    margin: 0 5px;
}

.btn-login {
    background-color: var(--secondary-color);
    color: var(--primary-color);
    border: none;
    padding: 10px 20px;
    border-radius: 5px;
    font-weight: 700;
    cursor: pointer;
    transition: var(--transition);
    display: flex;
    align-items: center;
    gap: 8px;
}

.btn-login:hover {
    background-color: #9cd153;
    transform: translateY(-2px);
}

.mobile-menu-toggle {
    display: none;
    font-size: 24px;
    cursor: pointer;
}

/* Hero Section */
.hero {
    height: 100vh;
    background: url('assets/hero_aircraft.png') no-repeat center center/cover;
    display: flex;
    align-items: center;
    position: relative;
    padding-top: 80px; /* Offset for header */
}

.hero-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(26, 42, 71, 0.7);
}

.hero-content {
    position: relative;
    z-index: 1;
    color: var(--text-light);
    max-width: 800px;
}

.hero h1 {
    font-size: 3.5rem;
    line-height: 1.2;
    margin-bottom: 20px;
    font-weight: 700;
}

.hero h1 span {
    color: var(--secondary-color);
}

.hero p {
    font-size: 1.2rem;
    margin-bottom: 30px;
    opacity: 0.9;
}

.btn-primary {
    display: inline-block;
    background-color: var(--secondary-color);
    color: var(--primary-color);
    padding: 15px 30px;
    border-radius: 5px;
    font-weight: 700;
    font-size: 1.1rem;
    transition: var(--transition);
}

.btn-primary:hover {
    background-color: #9cd153;
    transform: translateY(-3px);
    box-shadow: 0 10px 20px rgba(178, 234, 98, 0.2);
}

/* Common Section Styles */
section {
    padding: 80px 0;
}

.section-title {
    margin-bottom: 50px;
}

.section-title h2 {
    font-size: 2.5rem;
    color: var(--primary-color);
    margin-bottom: 10px;
}

.section-title.text-center {
    text-align: center;
}

.divider {
    height: 4px;
    width: 60px;
    background-color: var(--accent-color);
}

.divider.center {
    margin: 0 auto;
}

/* Stats Section */
.stats-section {
    background-color: #fff;
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
}

.stat-card {
    padding: 40px;
    background-color: var(--bg-light);
    border-radius: 10px;
    text-align: center;
    transition: var(--transition);
    border-bottom: 4px solid transparent;
}

.stat-card:hover {
    transform: translateY(-10px);
    border-bottom-color: var(--secondary-color);
    box-shadow: 0 15px 30px rgba(0,0,0,0.05);
}

.stat-icon {
    font-size: 40px;
    color: var(--primary-color);
    margin-bottom: 20px;
}

.stat-card h3 {
    font-size: 1.5rem;
    color: var(--primary-color);
    margin-bottom: 15px;
}

/* Fleet Capabilities */
.fleet-section {
    background-color: var(--primary-color);
    color: var(--text-light);
}

.fleet-content {
    display: flex;
    flex-wrap: wrap;
    gap: 50px;
}

.fleet-text {
    flex: 1;
    min-width: 300px;
}

.fleet-text h2 {
    font-size: 2.5rem;
    margin-bottom: 20px;
    color: var(--secondary-color);
}

.fleet-grid {
    flex: 2;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 30px;
}

.fleet-category {
    background: rgba(255,255,255,0.05);
    padding: 30px;
    border-radius: 10px;
    border-left: 4px solid var(--secondary-color);
}

.fleet-category h3 {
    margin-bottom: 20px;
    color: var(--secondary-color);
    font-size: 1.5rem;
}

.fleet-list li {
    margin-bottom: 10px;
    display: flex;
    align-items: center;
    gap: 10px;
}

/* Expertise Section */
.expertise-section {
    background-color: #fff;
}

.expertise-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 30px;
}

.expertise-card {
    text-align: center;
    padding: 30px;
    background: var(--bg-light);
    border-radius: 10px;
    box-shadow: 0 5px 15px rgba(0,0,0,0.05);
    position: relative;
    overflow: hidden;
}

.exp-ring {
    width: 120px;
    height: 120px;
    border: 5px solid var(--primary-color);
    border-radius: 50%;
    margin: 0 auto 20px;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    font-weight: 700;
    color: var(--primary-color);
    line-height: 1.2;
}

.exp-ring span {
    font-size: 2rem;
}

.exp-ring.highlight {
    border-color: var(--accent-color);
    color: var(--accent-color);
}

.expertise-card h3 {
    margin-bottom: 15px;
    color: var(--primary-color);
}

/* Services Timeline */
.services-section {
    background-color: var(--bg-light);
}

.timeline {
    position: relative;
    max-width: 800px;
    margin: 0 auto;
}

.timeline::after {
    content: '';
    position: absolute;
    width: 4px;
    background-color: var(--primary-color);
    top: 0;
    bottom: 0;
    left: 50%;
    margin-left: -2px;
}

.timeline-item {
    padding: 10px 40px;
    position: relative;
    background-color: inherit;
    width: 50%;
}

.timeline-item:nth-child(odd) {
    left: 0;
}

.timeline-item:nth-child(even) {
    left: 50%;
}

.timeline-dot {
    position: absolute;
    width: 40px;
    height: 40px;
    right: -20px;
    background-color: var(--secondary-color);
    border: 4px solid var(--primary-color);
    top: 15px;
    border-radius: 50%;
    z-index: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: bold;
    color: var(--primary-color);
}

.timeline-item:nth-child(even) .timeline-dot {
    left: -20px;
}

.timeline-content {
    padding: 20px 30px;
    background-color: white;
    position: relative;
    border-radius: 6px;
    box-shadow: 0 5px 15px rgba(0,0,0,0.05);
}

.timeline-content h3 {
    color: var(--primary-color);
    margin-bottom: 15px;
}

.timeline-content ul {
    list-style-type: disc;
    padding-left: 20px;
}

/* Footer */
footer {
    background-color: var(--primary-color);
    color: var(--text-light);
    padding: 60px 0 20px;
}

.footer-content {
    display: flex;
    flex-wrap: wrap;
    justify-content: space-between;
    gap: 40px;
    margin-bottom: 40px;
}

.footer-brand {
    max-width: 400px;
}

.footer-logo {
    height: 60px;
    margin-bottom: 20px;
    background-color: white; /* to make logo visible if it's dark, or just keep as is */
    padding: 5px;
    border-radius: 5px;
}

.footer-contact h4 {
    color: var(--secondary-color);
    margin-bottom: 20px;
    font-size: 1.2rem;
}

.footer-contact p {
    margin-bottom: 10px;
    display: flex;
    align-items: center;
    gap: 10px;
}

.footer-bottom {
    text-align: center;
    padding-top: 20px;
    border-top: 1px solid rgba(255,255,255,0.1);
}

/* Modal */
.modal {
    display: none;
    position: fixed;
    z-index: 2000;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0,0,0,0.6);
    backdrop-filter: blur(5px);
}

.modal-content {
    background-color: #fefefe;
    margin: 10% auto;
    padding: 40px;
    border-radius: 10px;
    width: 90%;
    max-width: 450px;
    box-shadow: 0 15px 50px rgba(0,0,0,0.2);
    position: relative;
    animation: modalFadeIn 0.3s;
}

@keyframes modalFadeIn {
    from {opacity: 0; transform: translateY(-50px);}
    to {opacity: 1; transform: translateY(0);}
}

.close {
    position: absolute;
    right: 20px;
    top: 15px;
    color: #aaa;
    font-size: 28px;
    font-weight: bold;
    cursor: pointer;
}

.close:hover {
    color: #333;
}

.modal-header {
    text-align: center;
    margin-bottom: 30px;
}

.modal-logo {
    height: 40px;
    margin-bottom: 15px;
    background-color: var(--primary-color);
    padding: 5px 15px;
    border-radius: 5px;
}

.modal-header h2 {
    color: var(--primary-color);
    margin-bottom: 5px;
}

.modal-header p {
    color: #666;
    font-size: 0.9rem;
}

.form-group {
    margin-bottom: 20px;
}

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

.form-group input {
    width: 100%;
    padding: 12px 15px;
    border: 1px solid #ddd;
    border-radius: 5px;
    font-size: 1rem;
    font-family: inherit;
    transition: border-color 0.3s;
}

.form-group input:focus {
    outline: none;
    border-color: var(--primary-color);
}

.form-options {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 25px;
    font-size: 0.9rem;
}

.forgot-pass {
    color: var(--primary-color);
    font-weight: 600;
}

.btn-login-submit {
    width: 100%;
    background-color: var(--primary-color);
    color: var(--text-light);
    border: none;
    padding: 15px;
    border-radius: 5px;
    font-weight: 700;
    font-size: 1.1rem;
    cursor: pointer;
    transition: var(--transition);
}

.btn-login-submit:hover {
    background-color: #2a4365;
}

/* Responsive */
@media screen and (max-width: 900px) {
    .timeline::after {
        left: 31px;
    }
    .timeline-item {
        width: 100%;
        padding-left: 70px;
        padding-right: 25px;
    }
    .timeline-item:nth-child(even) {
        left: 0%;
    }
    .timeline-dot {
        left: 11px !important;
    }
}

@media screen and (max-width: 768px) {
    .nav-links {
        display: none;
    }
    .mobile-menu-toggle {
        display: block;
    }
    .hero h1 {
        font-size: 2.5rem;
    }
    .header-actions {
        display: none;
    }
}