/* Base styles */
:root {
    --primary-color: #2E3192;
    --secondary-color: #FF6B6B;
    --accent-color: #FF6B6B;
    --text-color: #333;
    --light-bg: #E8F0FE;
    --white: #ffffff;
    --shadow: 0 2px 4px rgba(0,0,0,0.1);
    --shadow-hover: 0 8px 30px rgba(0,0,0,0.12);
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    --scrollbar-width: 8px;
    --scrollbar-track: #f1f1f1;
    --scrollbar-thumb: #c1c1c1;
    --scrollbar-thumb-hover: #a8a8a8;
}

/* Dark mode variables */
[data-theme="dark"] {
    --primary-color: #4A90E2;
    --secondary-color: #FF8E8E;
    --text-color: #E0E0E0;
    --light-bg: #1A1A1A;
    --white: #121212;
    --shadow: 0 2px 4px rgba(0,0,0,0.3);
    --shadow-hover: 0 8px 30px rgba(0,0,0,0.4);
    --scrollbar-track: #2A2A2A;
    --scrollbar-thumb: #4A4A4A;
    --scrollbar-thumb-hover: #5A5A5A;
}

/* Smooth scroll behavior */
html {
    scroll-behavior: smooth;
    scroll-padding-top: 80px;
}

/* Custom scrollbar */
::-webkit-scrollbar {
    width: var(--scrollbar-width);
}

::-webkit-scrollbar-track {
    background: var(--scrollbar-track);
}

::-webkit-scrollbar-thumb {
    background: var(--scrollbar-thumb);
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--scrollbar-thumb-hover);
}

@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700&display=swap');

body {
    font-family: 'Inter', sans-serif;
    margin: 0;
    padding: 0;
    color: var(--text-color);
    line-height: 1.6;
    background-color: var(--white);
}

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

/* Header styles */
header {
    background-color: var(--white);
    box-shadow: var(--shadow);
    position: sticky;
    top: 0;
    z-index: 1000;
    backdrop-filter: blur(10px);
    background-color: rgba(255, 255, 255, 0.95);
}

nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1.2rem 20px;
    max-width: 1200px;
    margin: 0 auto;
}

.logo {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--primary-color);
    letter-spacing: -0.5px;
}

.nav-links {
    display: flex;
    gap: 2.5rem;
    list-style: none;
    margin: 0;
    padding: 0;
}

.nav-links a {
    color: var(--primary-color);
    text-decoration: none;
    font-weight: 500;
    font-size: 0.95rem;
    transition: var(--transition);
    position: relative;
    padding: 0.5rem 0;
}

.nav-links a::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background-color: var(--secondary-color);
    transition: var(--transition);
}

.nav-links a:hover::after {
    width: 100%;
}

/* Hero section */
.hero {
    padding: 6rem 0;
    background: linear-gradient(135deg, var(--white) 0%, var(--light-bg) 100%);
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    right: 0;
    width: 40%;
    height: 100%;
    background: linear-gradient(45deg, rgba(46, 49, 146, 0.05) 0%, rgba(255, 107, 107, 0.05) 100%);
    clip-path: polygon(25% 0%, 100% 0%, 100% 100%, 0% 100%);
}

.hero-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 3rem;
    align-items: center;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
    position: relative;
}

.hero-text h1 {
    font-size: clamp(2.5rem, 5vw, 3.5rem);
    color: var(--primary-color);
    margin-bottom: 1.5rem;
    line-height: 1.2;
    font-weight: 700;
    letter-spacing: -1px;
}

.hero-text p {
    font-size: clamp(1.1rem, 2vw, 1.3rem);
    color: var(--text-color);
    margin-bottom: 2.5rem;
    line-height: 1.6;
    opacity: 0.9;
}

.hero-image {
    border-radius: 16px;
    overflow: hidden;
    box-shadow: var(--shadow-hover);
    transition: var(--transition);
    position: relative;
}

.hero-image::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(45deg, rgba(46, 49, 146, 0.1) 0%, rgba(255, 107, 107, 0.1) 100%);
    opacity: 0;
    transition: var(--transition);
}

.hero-image:hover::before {
    opacity: 1;
}

.hero-image img {
    width: 100%;
    height: auto;
    display: block;
    transition: var(--transition);
}

.hero-image:hover img {
    transform: scale(1.02);
}

.cta-button {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 1rem 2rem;
    background-color: var(--secondary-color);
    color: var(--white);
    text-decoration: none;
    border-radius: 12px;
    font-weight: 600;
    transition: var(--transition);
    box-shadow: 0 4px 15px rgba(255, 107, 107, 0.3);
}

.cta-button:hover {
    transform: translateY(-3px);
    background-color: #FF5252;
    box-shadow: 0 8px 25px rgba(255, 107, 107, 0.4);
}

/* Services section */
.services {
    padding: 6rem 0;
    background-color: var(--white);
    position: relative;
}

.services h2 {
    text-align: center;
    font-size: clamp(2rem, 4vw, 2.8rem);
    color: var(--primary-color);
    margin-bottom: 4rem;
    font-weight: 700;
    letter-spacing: -0.5px;
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2.5rem;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

.service-card {
    background-color: var(--white);
    padding: 2.5rem;
    border-radius: 16px;
    box-shadow: var(--shadow);
    transition: var(--transition);
    border: 1px solid rgba(46, 49, 146, 0.1);
    position: relative;
    overflow: hidden;
    transform-style: preserve-3d;
    perspective: 1000px;
}

.service-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, rgba(46, 49, 146, 0.05) 0%, rgba(255, 107, 107, 0.05) 100%);
    opacity: 0;
    transition: var(--transition);
    z-index: 0;
}

.service-card:hover {
    transform: translateY(-8px) rotateX(5deg) rotateY(5deg);
    box-shadow: var(--shadow-hover);
    border-color: rgba(46, 49, 146, 0.2);
}

.service-card:hover::before {
    opacity: 1;
}

.service-card > * {
    position: relative;
    z-index: 1;
}

.service-card i {
    font-size: 2.5rem;
    color: var(--primary-color);
    margin-bottom: 1.5rem;
    transition: var(--transition);
    display: inline-block;
}

.service-card:hover i {
    transform: scale(1.1) rotate(5deg);
    color: var(--secondary-color);
}

.service-card h3 {
    color: var(--primary-color);
    margin-bottom: 1.5rem;
    font-size: 1.5rem;
    font-weight: 600;
    transition: var(--transition);
}

.service-card:hover h3 {
    transform: translateX(5px);
}

.service-card ul {
    list-style: none;
    padding: 0;
    margin: 0;
    transition: var(--transition);
}

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

.service-card li {
    margin-bottom: 1rem;
    padding-left: 1.5rem;
    position: relative;
    font-size: 1.1rem;
    line-height: 1.6;
    transition: var(--transition);
}

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

.service-card li:before {
    content: "•";
    color: var(--secondary-color);
    position: absolute;
    left: 0;
    font-size: 1.5rem;
    line-height: 1;
    transition: var(--transition);
}

.service-card li:hover:before {
    transform: scale(1.2);
    color: var(--primary-color);
}

/* About section */
.about {
    padding: 6rem 0;
    background-color: var(--light-bg);
    position: relative;
}

.about::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 40%;
    height: 100%;
    background: linear-gradient(45deg, rgba(46, 49, 146, 0.05) 0%, rgba(255, 107, 107, 0.05) 100%);
    clip-path: polygon(0 0, 100% 0, 75% 100%, 0% 100%);
}

.about h2 {
    text-align: center;
    font-size: clamp(2rem, 4vw, 2.8rem);
    color: var(--primary-color);
    margin-bottom: 3rem;
    font-weight: 700;
    letter-spacing: -0.5px;
}

.about-content {
    max-width: 800px;
    margin: 0 auto;
    padding: 0 20px;
    position: relative;
}

.about-content p {
    margin-bottom: 2rem;
    font-size: 1.1rem;
    line-height: 1.8;
    opacity: 0.9;
}

.expertise-list {
    list-style: none;
    padding: 0;
    margin: 2rem 0;
}

.expertise-list li {
    margin-bottom: 1.2rem;
    padding-left: 2rem;
    position: relative;
    font-size: 1.1rem;
    line-height: 1.6;
}

.expertise-list li:before {
    content: "→";
    color: var(--secondary-color);
    position: absolute;
    left: 0;
    font-weight: bold;
    transition: var(--transition);
}

.expertise-list li:hover:before {
    transform: translateX(5px);
}

/* Contact section */
.contact {
    padding: 6rem 0;
    background-color: var(--white);
    position: relative;
}

.contact h2 {
    text-align: center;
    font-size: clamp(2rem, 4vw, 2.8rem);
    color: var(--primary-color);
    margin-bottom: 3rem;
    font-weight: 700;
    letter-spacing: -0.5px;
}

.contact-content {
    max-width: 600px;
    margin: 0 auto;
    text-align: center;
    padding: 0 20px;
    position: relative;
}

.contact-content p {
    font-size: 1.1rem;
    line-height: 1.8;
    margin-bottom: 2.5rem;
    opacity: 0.9;
}

.contact-info {
    margin-top: 3rem;
}

.email-container {
    display: inline-block;
    padding: 1.2rem 2.5rem;
    background-color: var(--light-bg);
    border-radius: 16px;
    transition: var(--transition);
    margin-bottom: 2rem;
    border: 1px solid rgba(46, 49, 146, 0.1);
}

.email-container:hover {
    background-color: var(--primary-color);
    transform: translateY(-3px);
    box-shadow: var(--shadow-hover);
    border-color: transparent;
}

.email-text {
    font-size: 1.2rem;
    color: var(--primary-color);
    font-weight: 500;
    transition: var(--transition);
}

.email-container:hover .email-text {
    color: var(--white);
}

.email-at {
    color: var(--secondary-color);
}

.social-links a {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    color: var(--primary-color);
    text-decoration: none;
    font-weight: 500;
    font-size: 1.1rem;
    transition: var(--transition);
    padding: 0.5rem 1rem;
    border-radius: 8px;
}

.social-links a:hover {
    color: var(--secondary-color);
    background-color: var(--light-bg);
}

/* Footer */
footer {
    background-color: var(--primary-color);
    color: var(--white);
    padding: 2.5rem 0;
    text-align: center;
    position: relative;
}

footer::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 1px;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
}

/* Mobile menu */
.mobile-menu-btn {
    display: none;
    background: none;
    border: none;
    font-size: 1.5rem;
    color: var(--primary-color);
    cursor: pointer;
    padding: 0.5rem;
    transition: var(--transition);
}

.mobile-menu-btn:hover {
    color: var(--secondary-color);
}

/* Responsive design */
@media (max-width: 768px) {
    .mobile-menu-btn {
        display: block;
    }

    .nav-links {
        display: none;
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        background-color: var(--white);
        padding: 1.5rem;
        box-shadow: var(--shadow);
        flex-direction: column;
        gap: 1rem;
        text-align: center;
        backdrop-filter: blur(10px);
        background-color: rgba(255, 255, 255, 0.95);
    }

    .nav-links.active {
        display: flex;
    }

    .hero-content {
        grid-template-columns: 1fr;
        text-align: center;
        gap: 3rem;
    }

    .hero-image {
        order: -1;
        max-width: 400px;
        margin: 0 auto;
    }

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

    .service-card {
        padding: 2rem;
    }

    .about-content, .contact-content {
        padding: 0 1.5rem;
    }

    .email-container {
        padding: 1rem 2rem;
    }
}

@media (max-width: 480px) {
    .hero-text h1 {
        font-size: 2.2rem;
    }

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

    .service-card li {
        font-size: 1rem;
    }

    .about-content p, .expertise-list li {
        font-size: 1rem;
    }

    .email-container {
        padding: 0.8rem 1.5rem;
    }
}

/* Dark mode toggle */
.theme-toggle {
    position: fixed;
    bottom: 2rem;
    right: 2rem;
    z-index: 1000;
    background: var(--white);
    border: none;
    width: 3rem;
    height: 3rem;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    box-shadow: var(--shadow);
    transition: var(--transition);
}

.theme-toggle:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-hover);
}

.theme-toggle i {
    font-size: 1.5rem;
    color: var(--primary-color);
    transition: var(--transition);
}

[data-theme="dark"] .theme-toggle i {
    color: var(--secondary-color);
}

/* Scroll to top button */
.scroll-to-top {
    position: fixed;
    bottom: 6rem;
    right: 2rem;
    z-index: 1000;
    background: var(--white);
    border: none;
    width: 3rem;
    height: 3rem;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    box-shadow: var(--shadow);
    transition: var(--transition);
    opacity: 0;
    visibility: hidden;
    transform: translateY(20px);
}

.scroll-to-top.visible {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.scroll-to-top:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-hover);
}

.scroll-to-top i {
    font-size: 1.5rem;
    color: var(--primary-color);
    transition: var(--transition);
}

.scroll-to-top:hover i {
    transform: translateY(-2px);
}

/* Gradient text effects */
.gradient-text {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--secondary-color) 100%);
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
    display: inline-block;
}

.hero-text h1,
.services h2,
.about h2,
.contact h2 {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--secondary-color) 100%);
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
}

/* Responsive adjustments */
@media (max-width: 768px) {
    .theme-toggle {
        bottom: 1.5rem;
        right: 1.5rem;
        width: 2.5rem;
        height: 2.5rem;
    }

    .scroll-to-top {
        bottom: 5rem;
        right: 1.5rem;
        width: 2.5rem;
        height: 2.5rem;
    }

    .theme-toggle i,
    .scroll-to-top i {
        font-size: 1.2rem;
    }
}