/* Global Styles */
:root {
    --primary-color: #2563EB;
    --secondary-color: #1E40AF;
    --accent-color: #3B82F6;
    --text-color: #1F2937;
    --light-text: #6B7280;
    --background-color: #FFFFFF;
    --light-background: #F3F4F6;
    --border-color: #E5E7EB;
    --success-color: #10B981;
    --warning-color: #F59E0B;
    --error-color: #EF4444;
    --box-shadow: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
    --loader-color: #2d5f89;
}

/* Preloader Styles */
.preloader {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: #2d5f89;
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 9999;
    transition: opacity 0.5s ease-in-out, visibility 0.5s ease-in-out;
}

.preloader.fade-out {
    opacity: 0;
    visibility: hidden;
}

.spinner {
    width: 60px;
    height: 60px;
    border: 5px solid rgba(255, 255, 255, 0.3);
    border-radius: 50%;
    border-top-color: #ffffff;
    animation: spin 1s linear infinite;
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

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

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

h1, h2, h3, h4, h5, h6 {
    font-family: 'Montserrat', sans-serif;
    font-weight: 600;
    margin-bottom: 1rem;
    line-height: 1.2;
}

h1 {
    font-size: 2.5rem;
}

h2 {
    font-size: 2rem;
}

h3 {
    font-size: 1.5rem;
}

p {
    margin-bottom: 1rem;
}

a {
    text-decoration: none;
    color: var(--primary-color);
    transition: all 0.3s ease;
}

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

ul {
    list-style: none;
}

img {
    max-width: 100%;
    height: auto;
}

.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 1.5rem;
}

.section-title {
    text-align: center;
    margin-bottom: 2.5rem;
    position: relative;
}

.section-title:after {
    content: '';
    display: block;
    width: 80px;
    height: 3px;
    background: var(--primary-color);
    margin: 15px auto;
}

/* Buttons */
.btn {
    display: inline-block;
    padding: 0.75rem 1.5rem;
    border-radius: 5px;
    font-weight: 500;
    text-align: center;
    cursor: pointer;
    transition: all 0.3s ease;
    border: none;
    font-size: 1rem;
}

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

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

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

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

/* Header & Navigation */
header {
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
    position: sticky;
    top: 0;
    background-color: white;
    z-index: 1000;
}

.navbar {
    padding: 1rem 0;
}

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

.logo a {
    font-family: 'Montserrat', sans-serif;
    font-size: 1.5rem;
    font-weight: 700;
    color: #2d5f89;
    display: flex;
    align-items: center;
}

.logo img {
    height: 40px;
    margin-right: 10px;
    filter: brightness(0) saturate(100%) invert(30%) sepia(65%) saturate(341%) hue-rotate(169deg) brightness(97%) contrast(89%);
}

.logo span {
    color: #2d5f89;
    margin-left: 3px;
}

.nav-links ul {
    display: flex;
}

.nav-links ul li {
    margin-left: 2rem;
    position: relative;
}

.nav-links ul li a {
    color: var(--text-color);
    font-weight: 500;
}

.nav-links ul li.active a {
    color: var(--primary-color);
}

.nav-links ul li a:after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 0;
    height: 2px;
    background-color: var(--primary-color);
    transition: width 0.3s;
}

.nav-links ul li.active a:after,
.nav-links ul li a:hover:after {
    width: 100%;
}

.hamburger {
    display: none;
    cursor: pointer;
}

.bar {
    display: block;
    width: 25px;
    height: 3px;
    margin: 5px auto;
    background-color: var(--text-color);
    transition: all 0.3s ease;
}

/* Hero Sections */
.hero {
    padding: 6rem 0;
    background: linear-gradient(rgba(0, 0, 0, 0.6), rgba(0, 0, 0, 0.6)), url('./images/hero-bg.jpg') center/cover;
    color: white;
    text-align: center;
    position: relative;
}

.hero-content {
    max-width: 800px;
    margin: 0 auto;
}

.hero-content h1 {
    font-size: 3rem;
    margin-bottom: 1.5rem;
}

.hero-content p {
    font-size: 1.25rem;
    margin-bottom: 2rem;
}

/* Features Section */
.features {
    padding: 5rem 0;
    background-color: var(--light-background);
}

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

.feature-card {
    background-color: white;
    border-radius: 10px;
    padding: 2rem;
    text-align: center;
    box-shadow: var(--box-shadow);
    transition: transform 0.3s ease;
}

.feature-card:hover {
    transform: translateY(-10px);
}

.feature-card .icon {
    width: 70px;
    height: 70px;
    background-color: var(--light-background);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 1.5rem;
}

.feature-card .icon i {
    font-size: 2rem;
    color: var(--primary-color);
}

.feature-card h3 {
    margin-bottom: 1rem;
}

/* CTA Section */
.cta {
    padding: 5rem 0;
    background: linear-gradient(rgba(0, 0, 0, 0.7), rgba(0, 0, 0, 0.7)), url('../images/cta-bg.jpg') center/cover;
    color: white;
    text-align: center;
}

.cta h2 {
    font-size: 2.5rem;
    margin-bottom: 1rem;
}

.cta p {
    font-size: 1.25rem;
    margin-bottom: 2rem;
}

/* Footer */
footer {
    background-color: #111827;
    color: white;
    padding: 4rem 0 2rem;
}

.footer-content {
    display: grid;
    grid-template-columns: 1fr 2fr;
    gap: 3rem;
    margin-bottom: 2rem;
}

.footer-logo a {
    font-family: 'Montserrat', sans-serif;
    font-size: 1.5rem;
    font-weight: 700;
    color: #2d5f89;
    display: flex;
    align-items: center;
}

.footer-logo img {
    height: 40px;
    margin-right: 10px;
    filter: brightness(0) saturate(100%) invert(30%) sepia(65%) saturate(341%) hue-rotate(169deg) brightness(97%) contrast(89%);
}

.footer-logo span {
    color: #2d5f89; /* Footerda ham #2d5f89 rangga o'zgartirish */
    margin-left: 3px;
}

.footer-logo p {
    margin-top: 0.5rem;
    color: #9CA3AF;
}

.footer-links {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
}

.footer-link-group h4 {
    color: white;
    margin-bottom: 1.5rem;
    font-size: 1.1rem;
}

.footer-link-group ul li {
    margin-bottom: 0.75rem;
}

.footer-link-group ul li a {
    color: #9CA3AF;
    transition: color 0.3s ease;
}

.footer-link-group ul li a:hover {
    color: white;
}

.social-links {
    display: flex;
    gap: 1rem;
    margin-top: 1rem;
}

.social-links a {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    background-color: rgba(255, 255, 255, 0.1);
    border-radius: 50%;
    color: white;
    transition: all 0.3s ease;
}

.social-links a:hover {
    background-color: var(--primary-color);
    transform: translateY(-3px);
}

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

.footer-bottom p {
    color: #9CA3AF;
    font-size: 0.9rem;
}

.footer-bottom p span#current-year {
    color: #2d5f89;
}

/* Media Queries */
@media (max-width: 992px) {
    h1 {
        font-size: 2.2rem;
    }

    h2 {
        font-size: 1.8rem;
    }

    .footer-content {
        grid-template-columns: 1fr;
    }

    .footer-links {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    .hamburger {
        display: block;
    }

    .nav-links {
        position: fixed;
        left: -100%;
        top: 70px;
        width: 100%;
        background-color: white;
        flex-direction: column;
        text-align: center;
        transition: 0.3s;
        box-shadow: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
        padding: 1rem 0;
    }

    .nav-links.active {
        left: 0;
    }

    .nav-links ul {
        flex-direction: column;
    }

    .nav-links ul li {
        margin: 1rem 0;
    }

    .feature-cards {
        grid-template-columns: 1fr;
    }

    .footer-links {
        grid-template-columns: 1fr;
        gap: 2rem;
    }
}

@media (max-width: 576px) {
    h1 {
        font-size: 2rem;
    }

    h2 {
        font-size: 1.5rem;
    }

    .hero-content h1 {
        font-size: 2.5rem;
    }

    .hero-content p {
        font-size: 1.1rem;
    }
}