:root {
    --primary-color: #1a237e;
    --secondary-color: #0288d1;
    --accent-color: #00bcd4;
    --text-color: #2c3e50;
    --light-bg: #f8f9fa;
}

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

body {
    padding-top: 80px;
    font-family: 'Arial', sans-serif;
    line-height: 1.6;
    color: var(--text-color);
}

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

/* Navigation */
nav {
    background-color: var(--primary-color);
    padding: 1.2rem 0;
    position: fixed;
    width: 100%;
    top: 0;
    z-index: 1000;
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
    backdrop-filter: blur(10px);
    overflow: hidden;
}

nav::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: 
        linear-gradient(90deg, rgba(255,255,255,0) 0%, 
                              rgba(255,255,255,0.05) 50%, 
                              rgba(255,255,255,0) 100%),
        linear-gradient(0deg, rgba(255,255,255,0.03) 1px, transparent 1px),
        linear-gradient(90deg, rgba(255,255,255,0.03) 1px, transparent 1px);
    background-size: 100% 100%, 15px 15px, 15px 15px;
    opacity: 0.6;
    z-index: -1;
}

nav .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    position: relative;
    z-index: 1;
}

.nav-links {
    list-style: none;
    display: flex;
    gap: 2.5rem;
}

.nav-links a {
    color: white;
    text-decoration: none;
    font-weight: 500;
    padding: 0.5rem 1rem;
    border-radius: 4px;
    transition: all 0.3s ease;
    position: relative;
}

.nav-links a::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 0;
    height: 2px;
    background: var(--accent-color);
    transition: width 0.3s ease;
}

.nav-links a:hover::after {
    width: 80%;
}

.nav-links a.active {
    background: rgba(255,255,255,0.1);
}

.nav-links a.active::after {
    width: 80%;
}

.logo {
    color: white;
    font-size: 2.2rem;
    font-weight: bold;
    position: relative;
    padding: 0.5rem 0;
    letter-spacing: 1px;
    text-decoration: none;
    display: flex;
    align-items: center;
}

.logo span {
    background: linear-gradient(to right, white 60%, var(--accent-color));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    padding-right: 5px;
}

.logo::after {
    content: 'AI';
    font-size: 0.9em;
    margin-left: 5px;
    color: var(--accent-color);
    text-shadow: 0 0 15px var(--accent-color);
}

.logo::before {
    content: '';
    position: absolute;
    left: -15px;
    top: 50%;
    transform: translateY(-50%);
    width: 3px;
    height: 70%;
    background: var(--accent-color);
    box-shadow: 0 0 15px var(--accent-color);
}

/* Hero Section */
.hero {
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    height: 100vh;
    display: flex;
    align-items: center;
    text-align: center;
    color: white;
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: 
        linear-gradient(45deg, transparent 48%, rgba(255,255,255,0.1) 50%, transparent 52%),
        linear-gradient(-45deg, transparent 48%, rgba(255,255,255,0.1) 50%, transparent 52%);
    background-size: 30px 30px;
    opacity: 0.3;
}

.hero::after {
    content: '';
    position: absolute;
    width: 150%;
    height: 150%;
    background: radial-gradient(circle at center, var(--accent-color) 0%, transparent 60%);
    opacity: 0.1;
    top: -25%;
    left: -25%;
    animation: pulse 15s ease-in-out infinite;
}

@keyframes pulse {
    0% { transform: scale(1); }
    50% { transform: scale(1.2); }
    100% { transform: scale(1); }
}

.hero .container {
    position: relative;
    z-index: 1;
}

.hero h1 {
    font-size: 3.5rem;
    margin-bottom: 1.5rem;
    text-shadow: 0 2px 10px rgba(0,0,0,0.1);
    animation: fadeInUp 1s ease-out;
}

.hero p {
    font-size: 1.2rem;
    margin-bottom: 2rem;
    opacity: 0.9;
    animation: fadeInUp 1s ease-out 0.2s backwards;
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Services Section */
.services {
    padding: 7rem 0;
    background: linear-gradient(135deg, var(--light-bg) 0%, white 100%);
}

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

.service-card {
    position: relative;
    overflow: hidden;
    background: white;
    padding: 2.5rem;
    border-radius: 15px;
    text-align: center;
    box-shadow: 0 10px 30px rgba(0,0,0,0.08);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.service-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: radial-gradient(circle at top right, var(--accent-color) 0%, transparent 70%);
    opacity: 0;
    transition: opacity 0.3s ease;
}

.service-card:hover::before {
    opacity: 0.05;
}

.service-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 15px 40px rgba(0,0,0,0.12);
}

.service-card i {
    font-size: 3rem;
    color: var(--accent-color);
    margin-bottom: 1.5rem;
    transition: transform 0.3s ease;
}

.service-card:hover i {
    transform: scale(1.1);
}

/* About Section */
.about {
    position: relative;
    padding: 7rem 0;
    background: linear-gradient(45deg, var(--light-bg), white);
}

.about::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 100%;
    background: repeating-linear-gradient(
        45deg,
        transparent,
        transparent 10px,
        rgba(0,188,212,0.03) 10px,
        rgba(0,188,212,0.03) 20px
    );
    z-index: 1;
}

.about .container {
    position: relative;
    z-index: 2;
}

.about-content {
    background: white;
    padding: 3rem;
    border-radius: 20px;
    box-shadow: 0 15px 40px rgba(0,0,0,0.08);
    position: relative;
    z-index: 2;
}

.team-member {
    text-align: center;
}

.team-member img {
    border-radius: 50%;
    margin-bottom: 1rem;
}

/* Contact Section */
.contact {
    position: relative;
    padding: 7rem 0;
    background: linear-gradient(-45deg, var(--light-bg), white);
}

.contact::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: radial-gradient(circle at 0% 0%, var(--accent-color) 0%, transparent 50%),
                radial-gradient(circle at 100% 100%, var(--secondary-color) 0%, transparent 50%);
    opacity: 0.05;
}

#contact-form {
    max-width: 600px;
    margin: 0 auto;
    background: white;
    padding: 3rem;
    border-radius: 20px;
    box-shadow: 0 15px 40px rgba(0,0,0,0.08);
    position: relative;
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

input, select, textarea {
    padding: 1rem;
    border: 2px solid #eee;
    border-radius: 8px;
    transition: border-color 0.3s ease;
}

input:focus, select:focus, textarea:focus {
    border-color: var(--accent-color);
    outline: none;
}

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

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 2rem;
    margin-bottom: 2rem;
}

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

.social-links a {
    color: white;
    font-size: 1.5rem;
}

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

/* Buttons */
.cta-button {
    display: inline-block;
    background: linear-gradient(135deg, var(--secondary-color), var(--accent-color));
    padding: 1.2rem 2.5rem;
    border-radius: 8px;
    font-weight: 600;
    letter-spacing: 0.5px;
    box-shadow: 0 5px 15px rgba(0,0,0,0.1);
    color: white !important;
    text-decoration: none !important;
    border: none;
    cursor: pointer;
    transition: all 0.3s ease !important;
}

.cta-button:hover {
    background: linear-gradient(135deg, var(--accent-color), var(--secondary-color));
    transform: translateY(-2px);
    box-shadow: 0 8px 20px rgba(0,0,0,0.15);
}

/* Responsive Design */
@media (max-width: 768px) {
    .nav-links {
        display: none;
    }
    
    .about-content {
        grid-template-columns: 1fr;
    }
    
    .hero h1 {
        font-size: 2rem;
    }
}