:root {
    --bg-primary: #0a0a0a;
    --bg-secondary: #1a0a2e;
    --bg-card: linear-gradient(135deg, #1a0a2e 0%, #2a103e 100%);
    --text-primary: white;
    --text-secondary: #b0b0b0;
    --text-muted: #808080;
    --accent-primary: #8b5cf6;
    --accent-secondary: #a855f7;
    --border-color: rgba(168, 85, 247, 0.2);
    --shadow-color: rgba(168, 85, 247, 0.3);
}

[data-theme="light"] {
    --bg-primary: #f8fafc;
    --bg-secondary: #e0e7ff;
    --bg-card: linear-gradient(135deg, #e0e7ff 0%, #ddd6fe 100%);
    --text-primary: #1e293b;
    --text-secondary: #475569;
    --text-muted: #64748b;
    --accent-primary: #7c3aed;
    --accent-secondary: #8b5cf6;
    --border-color: rgba(124, 58, 237, 0.2);
    --shadow-color: rgba(124, 58, 237, 0.2);
}

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

body {
    font-family: 'Poppins', sans-serif;
    line-height: 1.6;
    color: var(--text-secondary);
    background: var(--bg-primary);
    transition: background-color 0.3s ease, color 0.3s ease;
}

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

.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background: rgba(var(--bg-primary), 0.95);
    backdrop-filter: blur(10px);
    z-index: 1000;
    transition: all 0.3s ease;
}

.navbar {
    padding: 1rem 0;
}

.nav-wrapper {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo h1 {
    font-size: 1.5rem;
    font-weight: 800;
    background: linear-gradient(135deg, var(--accent-primary) 0%, var(--accent-secondary) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: 2rem;
    align-items: center;
}

.nav-menu a {
    text-decoration: none;
    color: var(--text-primary);
    font-weight: 500;
    transition: color 0.3s ease;
}

.nav-menu a:hover,
.nav-menu a.active {
    color: var(--accent-secondary);
}

.theme-toggle {
    background: linear-gradient(135deg, var(--accent-primary) 0%, var(--accent-secondary) 100%);
    border: none;
    width: 40px;
    height: 40px;
    border-radius: 50%;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 1.1rem;
    transition: transform 0.3s ease;
}

.theme-toggle:hover {
    transform: scale(1.1);
}

.hamburger {
    display: none;
    flex-direction: column;
    gap: 5px;
    cursor: pointer;
}

.hamburger span {
    width: 25px;
    height: 3px;
    background: var(--text-primary);
    transition: all 0.3s ease;
}

.hero {
    padding: 180px 0 120px;
    background: linear-gradient(180deg, var(--bg-primary) 0%, var(--bg-secondary) 100%);
    color: var(--text-primary);
    overflow: hidden;
}

.hero .container {
    display: flex;
    align-items: center;
    gap: 60px;
}

.hero-content {
    flex: 1;
}

.hero-subtitle {
    font-size: 1rem;
    color: var(--accent-secondary);
    font-weight: 600;
    margin-bottom: 1rem;
    letter-spacing: 2px;
}

.hero-title {
    font-size: 3.5rem;
    font-weight: 800;
    line-height: 1.2;
    margin-bottom: 1.5rem;
}

.hero-title span {
    background: linear-gradient(135deg, var(--accent-primary) 0%, var(--accent-secondary) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-description {
    font-size: 1.1rem;
    margin-bottom: 2rem;
    color: var(--text-secondary);
    line-height: 1.8;
}

.hero-buttons {
    display: flex;
    gap: 1rem;
    flex-wrap: wrap;
}

.btn {
    padding: 14px 32px;
    border-radius: 50px;
    text-decoration: none;
    font-weight: 600;
    transition: all 0.3s ease;
    display: inline-block;
    font-size: 0.95rem;
}

.btn-primary {
    background: linear-gradient(135deg, var(--accent-primary) 0%, var(--accent-secondary) 100%);
    color: white;
}

.btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: 0 10px 40px var(--shadow-color);
}

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

.btn-secondary:hover {
    background: linear-gradient(135deg, var(--accent-primary) 0%, var(--accent-secondary) 100%);
    color: white;
}

.hero-image {
    flex: 1;
}

.hero-image img {
    width: 100%;
    border-radius: 20px;
    box-shadow: 0 20px 60px var(--shadow-color);
    animation: float 3s ease-in-out infinite;
}

@keyframes float {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-20px); }
}

.section-header {
    text-align: center;
    margin-bottom: 4rem;
}

.section-header p {
    font-size: 0.95rem;
    color: var(--accent-secondary);
    font-weight: 600;
    margin-bottom: 0.5rem;
    letter-spacing: 2px;
}

.section-header h2 {
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--text-primary);
}

.tech-stack {
    padding: 100px 0;
    background: var(--bg-primary);
}

.tech-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(120px, 1fr));
    gap: 2rem;
}

.tech-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 1rem;
    padding: 2rem;
    background: var(--bg-card);
    border-radius: 15px;
    border: 1px solid var(--border-color);
    transition: all 0.3s ease;
    text-decoration: none;
}

.tech-item:hover {
    transform: translateY(-10px);
    border-color: var(--accent-secondary);
    box-shadow: 0 10px 40px var(--shadow-color);
}

.tech-item i {
    font-size: 2.5rem;
    color: var(--accent-secondary);
}

.tech-item span {
    color: var(--text-primary);
    font-weight: 500;
}

.services {
    padding: 100px 0;
    background: linear-gradient(180deg, var(--bg-primary) 0%, var(--bg-secondary) 100%);
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 2rem;
}

.service-card {
    background: var(--bg-card);
    padding: 2.5rem;
    border-radius: 20px;
    border: 1px solid var(--border-color);
    transition: all 0.3s ease;
    text-decoration: none;
}

.service-card:hover {
    transform: translateY(-10px);
    border-color: var(--accent-secondary);
    box-shadow: 0 15px 50px var(--shadow-color);
}

.service-icon {
    width: 70px;
    height: 70px;
    margin-bottom: 1.5rem;
    background: linear-gradient(135deg, var(--accent-primary) 0%, var(--accent-secondary) 100%);
    border-radius: 15px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.8rem;
    color: white;
}

.service-card h3 {
    font-size: 1.4rem;
    margin-bottom: 1rem;
    color: var(--text-primary);
}

.service-card p {
    color: var(--text-secondary);
    line-height: 1.8;
}

.strengths {
    padding: 100px 0;
    background: var(--bg-primary);
}

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

.strength-card {
    background: var(--bg-card);
    padding: 2.5rem;
    border-radius: 20px;
    border: 1px solid var(--border-color);
    text-align: center;
    transition: all 0.3s ease;
}

.strength-card:hover {
    transform: translateY(-10px);
    border-color: var(--accent-secondary);
    box-shadow: 0 15px 50px var(--shadow-color);
}

.strength-card h3 {
    font-size: 3rem;
    font-weight: 800;
    background: linear-gradient(135deg, var(--accent-primary) 0%, var(--accent-secondary) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 0.5rem;
}

.strength-card p {
    color: var(--text-secondary);
    font-size: 1.1rem;
}

.process {
    padding: 100px 0;
    background: linear-gradient(180deg, var(--bg-primary) 0%, var(--bg-secondary) 100%);
}

.process-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2rem;
}

.process-card {
    background: var(--bg-card);
    padding: 2.5rem;
    border-radius: 20px;
    border: 1px solid var(--border-color);
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
}

.process-card:hover {
    transform: translateY(-10px);
    border-color: var(--accent-secondary);
    box-shadow: 0 15px 50px var(--shadow-color);
}

.process-number {
    font-size: 3rem;
    font-weight: 800;
    color: rgba(168, 85, 247, 0.2);
    margin-bottom: 1rem;
}

.process-card h3 {
    font-size: 1.3rem;
    margin-bottom: 1rem;
    color: var(--text-primary);
}

.process-card p {
    color: var(--text-secondary);
    line-height: 1.8;
}

.contact {
    padding: 100px 0;
    background: var(--bg-primary);
}

.contact-wrapper {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    background: var(--bg-card);
    padding: 3rem;
    border-radius: 30px;
    border: 1px solid var(--border-color);
}

.contact-content h2 {
    font-size: 1.8rem;
    color: var(--text-primary);
    margin-bottom: 2rem;
    line-height: 1.5;
}

.contact-info h3 {
    font-size: 1.3rem;
    color: var(--text-primary);
    margin-bottom: 1.5rem;
}

.contact-info .info-item {
    display: flex;
    align-items: center;
    gap: 1rem;
    margin-bottom: 1rem;
}

.contact-info .info-item i {
    width: 45px;
    height: 45px;
    background: linear-gradient(135deg, var(--accent-primary) 0%, var(--accent-secondary) 100%);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 1.1rem;
}

.contact-info .info-item p {
    color: var(--text-secondary);
    font-size: 1rem;
}

.contact-form {
    background: rgba(0, 0, 0, 0.1);
    padding: 2.5rem;
    border-radius: 20px;
}

[data-theme="light"] .contact-form {
    background: rgba(255, 255, 255, 0.5);
}

.form-group {
    margin-bottom: 1.5rem;
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 15px 20px;
    background: rgba(0, 0, 0, 0.1);
    border: 2px solid var(--border-color);
    border-radius: 10px;
    font-family: 'Poppins', sans-serif;
    font-size: 1rem;
    color: var(--text-primary);
    transition: border-color 0.3s ease;
}

[data-theme="light"] .form-group input,
[data-theme="light"] .form-group textarea {
    background: rgba(255, 255, 255, 0.7);
}

.form-group input::placeholder,
.form-group textarea::placeholder {
    color: var(--text-muted);
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--accent-secondary);
}

.footer {
    background: var(--bg-primary);
    color: var(--text-primary);
    padding: 3rem 0 1.5rem;
    border-top: 1px solid var(--border-color);
}

.footer-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 2rem;
}

.footer-logo h2 {
    font-size: 1.5rem;
    margin-bottom: 0.3rem;
    background: linear-gradient(135deg, var(--accent-primary) 0%, var(--accent-secondary) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.footer-logo p {
    color: var(--text-muted);
}

.footer-social {
    display: flex;
    gap: 1rem;
}

.footer-social a {
    width: 45px;
    height: 45px;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--accent-secondary);
    text-decoration: none;
    transition: all 0.3s ease;
}

.footer-social a:hover {
    background: linear-gradient(135deg, var(--accent-primary) 0%, var(--accent-secondary) 100%);
    color: white;
    transform: translateY(-3px);
}

.footer-bottom {
    text-align: center;
    padding-top: 1.5rem;
    border-top: 1px solid rgba(168, 85, 247, 0.1);
    color: var(--text-muted);
}

.bottom-bar {
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    background: var(--bg-card);
    backdrop-filter: blur(10px);
    border-top: 1px solid var(--border-color);
    z-index: 1000;
    display: none;
}

.bottom-bar-nav {
    display: flex;
    justify-content: space-around;
    padding: 0.5rem 0;
}

.bottom-bar-link {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.3rem;
    text-decoration: none;
    color: var(--text-secondary);
    padding: 0.5rem 1rem;
    border-radius: 10px;
    transition: all 0.3s ease;
}

.bottom-bar-link i {
    font-size: 1.3rem;
}

.bottom-bar-link span {
    font-size: 0.75rem;
    font-weight: 500;
}

.bottom-bar-link:hover,
.bottom-bar-link.active {
    color: var(--accent-secondary);
    background: rgba(168, 85, 247, 0.1);
}

@media (max-width: 968px) {
    .nav-menu {
        position: fixed;
        top: 70px;
        left: -100%;
        flex-direction: column;
        background: var(--bg-primary);
        width: 100%;
        padding: 2rem;
        box-shadow: 0 10px 30px rgba(0, 0, 0, 0.2);
        transition: left 0.3s ease;
    }

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

    .hamburger {
        display: flex;
    }

    .hero .container {
        flex-direction: column;
    }

    .hero-title {
        font-size: 2.2rem;
    }

    .contact-wrapper {
        grid-template-columns: 1fr;
    }

    .footer-content {
        flex-direction: column;
        gap: 1.5rem;
        text-align: center;
    }

    .bottom-bar {
        display: block;
    }

    body {
        padding-bottom: 80px;
    }
}

@media (max-width: 480px) {
    .hero-title {
        font-size: 1.8rem;
    }

    .section-header h2 {
        font-size: 1.8rem;
    }

    .service-card {
        padding: 2rem;
    }

    .hero-buttons {
        flex-direction: column;
    }

    .btn {
        width: 100%;
        text-align: center;
    }

    .contact-wrapper {
        padding: 2rem 1.5rem;
    }
}

html {
    scroll-behavior: smooth;
}

.page-title {
    padding: 160px 0 60px;
    text-align: center;
}

.page-title h1 {
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 0.5rem;
}

.page-title p {
    color: var(--text-secondary);
    font-size: 1.1rem;
}

.page-content {
    padding-bottom: 100px;
}

.about-section {
    padding: 60px 0;
}

.about-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
}

.about-image img {
    width: 100%;
    border-radius: 20px;
    box-shadow: 0 20px 60px var(--shadow-color);
}

.about-text h2 {
    font-size: 2rem;
    color: var(--text-primary);
    margin-bottom: 1.5rem;
}

.about-text p {
    color: var(--text-secondary);
    margin-bottom: 1.5rem;
    line-height: 1.8;
}

.service-detail {
    padding: 60px 0;
}

.service-detail-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
}

.service-detail-content h2 {
    font-size: 2rem;
    color: var(--text-primary);
    margin-bottom: 1.5rem;
}

.service-detail-content p {
    color: var(--text-secondary);
    line-height: 1.8;
}

.service-detail-image img {
    width: 100%;
    border-radius: 20px;
    box-shadow: 0 20px 60px var(--shadow-color);
}

.back-btn {
    margin-top: 2rem;
}