* { margin: 0; padding: 0; box-sizing: border-box; font-family: 'Poppins', sans-serif;}
body { 
    background: linear-gradient(135deg, #f5f7fa 0%, #c3cfe2 100%);
    color: #2c3e50;
    scroll-behavior: smooth;
    min-height: 100vh;
}

/* Header & Navigation */
header {
    background: linear-gradient(135deg, #1a3a52 0%, #0d1b2a 100%);
    color: white;
    padding: 20px 50px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    box-shadow: 0 8px 32px rgba(0,0,0,0.15);
    position: sticky;
    top: 0;
    z-index: 1000;
}

header .logo {
    font-weight: 700;
    font-size: 26px;
    background: linear-gradient(135deg, #00d4ff, #0099cc);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    letter-spacing: 1px;
}

nav {
    display: flex;
    gap: 40px;
}

nav a {
    color: white;
    text-decoration: none;
    font-weight: 500;
    font-size: 15px;
    position: relative;
    transition: color 0.3s ease;
}

nav a::after {
    content: '';
    position: absolute;
    bottom: -8px;
    left: 0;
    width: 0;
    height: 3px;
    background: linear-gradient(135deg, #00d4ff, #0099cc);
    transition: width 0.3s ease;
    border-radius: 2px;
}

nav a:hover::after {
    width: 100%;
}

nav a:hover {
    color: #00d4ff;
}

/* Hero Section */
.hero {
    background: linear-gradient(135deg, rgba(13,27,42,0.85) 0%, rgba(26,58,82,0.85) 100%),
                url('https://images.unsplash.com/photo-1581092918056-0c4c3acd3789');
    background-size: cover;
    background-position: center;
    background-attachment: fixed;
    text-align: center;
    padding: 150px 20px;
    color: white;
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: radial-gradient(circle at 20% 50%, rgba(0,212,255,0.1) 0%, transparent 50%);
    pointer-events: none;
}

.hero h1 {
    font-size: 56px;
    margin-bottom: 20px;
    font-weight: 700;
    position: relative;
    z-index: 2;
    letter-spacing: -1px;
}

.hero p {
    font-size: 20px;
    margin-bottom: 40px;
    position: relative;
    z-index: 2;
    font-weight: 300;
    letter-spacing: 0.5px;
}

/* Buttons */
.btn {
    background: linear-gradient(135deg, #00d4ff, #0099cc);
    color: white;
    padding: 14px 35px;
    border-radius: 50px;
    text-decoration: none;
    font-weight: 600;
    transition: all 0.4s ease;
    display: inline-block;
    border: 2px solid transparent;
    box-shadow: 0 8px 25px rgba(0,212,255,0.3);
    cursor: pointer;
    font-size: 15px;
    letter-spacing: 0.5px;
}

.btn:hover {
    transform: translateY(-3px);
    box-shadow: 0 15px 40px rgba(0,212,255,0.5);
    background: linear-gradient(135deg, #0099cc, #006b99);
}

.btn:active {
    transform: translateY(-1px);
}

/* Sections */
section {
    padding: 80px 50px;
    max-width: 1400px;
    margin: 0 auto;
    width: 100%;
}

h2 {
    margin-bottom: 50px;
    color: #0d1b2a;
    text-align: center;
    font-size: 42px;
    font-weight: 700;
    position: relative;
    padding-bottom: 20px;
}

h2::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 80px;
    height: 4px;
    background: linear-gradient(135deg, #00d4ff, #0099cc);
    border-radius: 2px;
}

/* Service Cards */
.services-cards {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 40px;
    justify-content: center;
    margin-bottom: 40px;
}

.card {
    background: white;
    padding: 40px;
    border-radius: 15px;
    box-shadow: 0 10px 30px rgba(0,0,0,0.08);
    transition: all 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
    position: relative;
    overflow: hidden;
    border: 1px solid #f0f0f0;
}

.card::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -50%;
    width: 200px;
    height: 200px;
    background: linear-gradient(135deg, rgba(0,212,255,0.1), rgba(0,153,204,0.1));
    border-radius: 50%;
    transition: all 0.4s ease;
}

.card h3 {
    font-size: 22px;
    margin-bottom: 15px;
    color: #0d1b2a;
    position: relative;
    z-index: 2;
}

.card p {
    color: #555;
    line-height: 1.6;
    position: relative;
    z-index: 2;
    font-size: 15px;
}

.card:hover {
    transform: translateY(-12px) scale(1.02);
    box-shadow: 0 25px 50px rgba(0,212,255,0.2);
    border-color: #00d4ff;
}

.card:hover::before {
    transform: translate(50%, 50%);
}

/* About Section */
.about {
    background: linear-gradient(135deg, white 0%, #f8fbff 100%);
    border-radius: 15px;
    padding: 60px;
    border: 2px solid #e0f2f7;
    box-shadow: 0 10px 40px rgba(0,0,0,0.05);
}

.about h2 {
    color: #0d1b2a;
}

.about p {
    font-size: 16px;
    line-height: 1.8;
    margin-bottom: 20px;
    color: #333;
}

/* Contact Section */
.contact-section {
    background: linear-gradient(135deg, white 0%, #f8fbff 100%);
    border-radius: 15px;
    padding: 60px;
    max-width: 700px;
    border: 2px solid #e0f2f7;
    box-shadow: 0 10px 40px rgba(0,0,0,0.05);
}

.contact-section h2 {
    color: #0d1b2a;
}

form {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

input, textarea, select {
    padding: 14px 18px;
    border-radius: 10px;
    border: 2px solid #e0e0e0;
    width: 100%;
    font-family: 'Poppins', sans-serif;
    font-size: 14px;
    transition: all 0.3s ease;
    background: white;
}

input:focus, textarea:focus, select:focus {
    outline: none;
    border-color: #00d4ff;
    box-shadow: 0 0 0 4px rgba(0,212,255,0.1);
    transform: translateY(-2px);
}

textarea {
    resize: vertical;
    min-height: 140px;
}

/* Footer */
footer {
    background: linear-gradient(135deg, #0d1b2a 0%, #1a3a52 100%);
    color: white;
    text-align: center;
    padding: 40px;
    margin-top: 60px;
    box-shadow: 0 -8px 32px rgba(0,0,0,0.1);
}

footer p {
    font-weight: 500;
    letter-spacing: 0.5px;
}

/* Animations */
.fade-in {
    opacity: 0;
    transform: translateY(30px);
    animation: fadeInUp 0.8s ease-out forwards;
}

.delay-1 { animation-delay: 0.2s; }
.delay-2 { animation-delay: 0.4s; }
.delay-3 { animation-delay: 0.6s; }
.delay-4 { animation-delay: 0.8s; }

@keyframes fadeInUp {
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

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

@keyframes slideInRight {
    from {
        opacity: 0;
        transform: translateX(50px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

@keyframes pulse {
    0%, 100% { transform: scale(1); }
    50% { transform: scale(1.05); }
}

/* Responsive */
@media(max-width: 768px) {
    header {
        flex-direction: column;
        text-align: center;
        padding: 15px 20px;
    }

    header .logo {
        font-size: 22px;
        margin-bottom: 15px;
    }

    nav {
        flex-direction: column;
        gap: 15px;
        width: 100%;
    }

    nav a {
        padding: 10px;
        border-bottom: 1px solid rgba(255,255,255,0.1);
    }

    .hero {
        padding: 80px 20px;
    }

    .hero h1 {
        font-size: 36px;
    }

    .hero p {
        font-size: 16px;
    }

    section {
        padding: 50px 20px;
    }

    h2 {
        font-size: 32px;
    }

    .services-cards {
        grid-template-columns: 1fr;
        gap: 20px;
    }

    .card {
        padding: 30px;
    }

    .about, .contact-section {
        padding: 30px;
    }

    .contact-section {
        max-width: 100%;
    }
}