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

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    line-height: 1.6;
    color: #333;
    background-color: #f8f9fa;
}

/* Navigation */
.navbar {
    position: fixed;
    top: 20px;
    left: 50%;
    transform: translateX(-50%);
    width: 98%;
    max-width: 1400px;
    background: rgba(59, 130, 246, 0.80);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border-radius: 15px;
    padding: 1rem 0;
    box-shadow: 0 8px 32px rgba(0,0,0,0.15);
    z-index: 1000;
    border: 1px solid rgba(255,255,255,0.2);
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0 2rem;
}

.logo-img {
    height: 45px;
    width: 95px;
    object-fit: contain;
    margin-right: 0.75rem;
    vertical-align: middle;
}

.logo {
    display: flex;
    align-items: center;
    color: white;
    font-size: 1.8rem;
    font-weight: bold;
}

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

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

.nav-links a:hover {
    color: #93c5fd;
}

.download-btn {
    background: linear-gradient(135deg, #fbbf24 0%, #f59e0b 100%);
    color: black;
    padding: 0.6rem 1.2rem;
    border: none;
    border-radius: 8px;
    font-weight: bold;
    cursor: pointer;
    transition: all 0.3s ease;
    text-decoration: none;
    display: inline-block;
    box-shadow: 0 4px 15px rgba(251, 191, 36, 0.4);
    animation: pulse 2s infinite;
    font-size: 0.95rem;
}

.download-btn:hover {
    background: linear-gradient(135deg, #f59e0b 0%, #d97706 100%);
    transform: translateY(-3px) scale(1.05);
    box-shadow: 0 8px 25px rgba(251, 191, 36, 0.6);
    animation: none;
}

@keyframes pulse {
    0% {
        box-shadow: 0 4px 15px rgba(251, 191, 36, 0.4);
    }
    50% {
        box-shadow: 0 4px 20px rgba(251, 191, 36, 0.6);
    }
    100% {
        box-shadow: 0 4px 15px rgba(251, 191, 36, 0.4);
    }
}

/* Sections */
section {
    padding: 5rem 2rem;
    max-width: 1200px;
    margin: 0 auto;
    scroll-margin-top: 120px;
}

.hero {
    background: linear-gradient(135deg, #1e3a8a 0%, #1e40af 50%, #3b82f6 100%);
    color: white;
    text-align: center;
    padding: 10rem 2rem 5rem;
    margin: 0 auto 0;
    border-radius: 0 0 25px 25px;
    box-shadow: 0 20px 40px rgba(0,0,0,0.15), 0 8px 16px rgba(0,0,0,0.1);
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, rgba(255,255,255,0.1) 0%, rgba(255,255,255,0.05) 100%);
    pointer-events: none;
}

.hero h1 {
    font-size: 3rem;
    margin-bottom: 1rem;
    position: relative;
    z-index: 1;
}

.hero p {
    font-size: 1.2rem;
    margin-bottom: 2rem;
    opacity: 0.9;
    position: relative;
    z-index: 1;
}

.cta-btn {
    background: linear-gradient(135deg, #3b82f6 0%, #1d4ed8 100%);
    color: white;
    padding: 1rem 2rem;
    border: none;
    border-radius: 5px;
    font-size: 1.1rem;
    font-weight: bold;
    cursor: pointer;
    transition: all 0.3s ease;
}

.cta-btn:hover {
    background: linear-gradient(135deg, #1d4ed8 0%, #1e40af 100%);
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(29, 78, 216, 0.3);
}

/* Services */
.services {
    background: white;
}

.section-title {
    text-align: center;
    font-size: 2.5rem;
    margin-bottom: 3rem;
    color: #333;
}

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

.service-card {
    background: white;
    padding: 2rem;
    border-radius: 10px;
    box-shadow: 0 5px 15px rgba(0,0,0,0.1);
    transition: transform 0.3s ease;
}

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

.service-card h3 {
    color: #1e3a8a;
    margin-bottom: 1rem;
}

.service-icon {
    text-align: center;
    margin-bottom: 1.5rem;
}

.service-icon i {
    font-size: 3rem;
    color: #3b82f6;
    background: linear-gradient(135deg, #3b82f6 0%, #1d4ed8 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

/* About */
.about {
    background: #f8f9fa;
}

.about-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 3rem;
    align-items: center;
}

.about-text h3 {
    color: #1e3a8a;
    margin-bottom: 1rem;
}

.about-text p {
    margin-bottom: 1rem;
}

/* Contact */
.contact {
    background: white;
}

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

.contact-item {
    text-align: center;
    padding: 1.5rem;
    background: #f8f9fa;
    border-radius: 10px;
}

.contact-item h4 {
    color: #1e3a8a;
    margin-bottom: 0.5rem;
}

.contact-item p {
    transition: filter 0.3s ease;
}

.contact-icon {
    text-align: center;
    margin-bottom: 1rem;
}

.contact-icon i {
    font-size: 2.5rem;
    color: #3b82f6;
    background: linear-gradient(135deg, #3b82f6 0%, #1d4ed8 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

/* 404 Error Page */
.error-container {
    max-width: 800px;
    margin: 0 auto;
    padding: 8rem 2rem 5rem;
    text-align: center;
}

.error-code {
    font-size: 8rem;
    font-weight: bold;
    color: #3b82f6;
    margin-bottom: 1rem;
    text-shadow: 2px 2px 4px rgba(0,0,0,0.1);
}

.error-title {
    font-size: 2.5rem;
    color: #333;
    margin-bottom: 1rem;
}

.error-message {
    font-size: 1.2rem;
    color: #666;
    margin-bottom: 2rem;
    line-height: 1.8;
}

.back-btn {
    background: linear-gradient(135deg, #1e3a8a 0%, #1e40af 100%);
    color: white;
    padding: 1rem 2rem;
    border: none;
    border-radius: 5px;
    font-size: 1.1rem;
    font-weight: bold;
    cursor: pointer;
    transition: all 0.3s ease;
    text-decoration: none;
    display: inline-block;
    margin: 0 0.5rem;
}

.back-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(30, 58, 138, 0.3);
}

.home-btn {
    background: linear-gradient(135deg, #3b82f6 0%, #1d4ed8 100%);
    color: white;
    padding: 1rem 2rem;
    border: none;
    border-radius: 5px;
    font-size: 1.1rem;
    font-weight: bold;
    cursor: pointer;
    transition: all 0.3s ease;
    text-decoration: none;
    display: inline-block;
    margin: 0 0.5rem;
}

.home-btn:hover {
    background: linear-gradient(135deg, #1d4ed8 0%, #1e40af 100%);
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(29, 78, 216, 0.3);
}

/* Responsive */
@media (max-width: 768px) {
    .navbar {
        position: fixed;
        top: 10px;
        left: 50%;
        transform: translateX(-50%);
        width: 95%;
        border-radius: 12px;
    }

    .nav-container {
        flex-direction: column;
        gap: 0.5rem;
        padding: 1rem 1rem;
        min-height: auto;
    }

    .logo-img {
        display: none;
    }

    .download-btn {
        display: none;
    }

    .logo {
        font-size: 1.2rem;
    }

    .nav-links {
        gap: 0.5rem;
        flex-wrap: wrap;
        justify-content: center;
        margin: 0.5rem 0;
    }

    .nav-links li {
        margin: 0 0.25rem;
    }

    .download-btn {
        margin-top: 0.5rem;
        padding: 0.4rem 0.8rem;
        font-size: 0.9rem;
    }

    .hero {
        padding: 18rem 1rem 3rem;
        margin-top: 0;
    }

    .hero h1 {
        font-size: 1.8rem;
        margin-bottom: 0.8rem;
    }

    .hero p {
        font-size: 1rem;
        margin-bottom: 1.5rem;
    }

    .hero-download-btn {
        display: inline-block;
        background: linear-gradient(135deg, #fbbf24 0%, #f59e0b 100%);
        color: black;
        padding: 0.8rem 1.5rem;
        border: none;
        border-radius: 8px;
        font-weight: bold;
        cursor: pointer;
        transition: all 0.3s ease;
        text-decoration: none;
        font-size: 1rem;
        box-shadow: 0 4px 15px rgba(251, 191, 36, 0.4);
        animation: pulse 2s infinite;
        margin-top: 1rem;
    }

    .hero-download-btn:hover {
        background: linear-gradient(135deg, #f59e0b 0%, #d97706 100%);
        transform: translateY(-3px) scale(1.05);
        box-shadow: 0 8px 25px rgba(251, 191, 36, 0.6);
        animation: none;
    }

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

    .section-title {
        font-size: 1.8rem;
    }

    .error-code {
        font-size: 5rem;
    }

    .error-title {
        font-size: 2rem;
    }

    .back-btn, .home-btn {
        display: block;
        margin: 0.5rem auto;
        max-width: 200px;
    }
}

/* Desktop - hide mobile download button */
@media (min-width: 769px) {
    .hero-download-btn {
        display: none;
    }
}