:root {
    --primary-color: #2563eb;
    --primary-dark: #1e40af;
    --secondary-color: #0ea5e9;
    --accent-color: #f59e0b;
    --text-dark: #0f172a;
    --text-medium: #475569;
    --text-light: #64748b;
    --bg-light: #f8fafc;
    --bg-white: #ffffff;
    --bg-gray: #f1f5f9;
    --border-color: #e2e8f0;
    --success-color: #10b981;
    --error-color: #ef4444;
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -2px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -4px rgba(0, 0, 0, 0.1);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 8px 10px -6px rgba(0, 0, 0, 0.1);
    --shadow-2xl: 0 25px 50px -12px rgba(0, 0, 0, 0.25);
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    color: var(--text-medium);
    line-height: 1.7;
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    background: var(--bg-white);
}

@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700;800&family=Plus+Jakarta+Sans:wght@600;700;800&display=swap');

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

/* Navigation */
.navbar {
    position: fixed;
    top: 0;
    width: 100%;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.05);
    z-index: 1000;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.navbar.scrolled {
    box-shadow: var(--shadow-md);
    background: rgba(255, 255, 255, 0.98);
}

.nav-wrapper {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1.25rem 0;
}

.logo {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--primary-color);
    font-family: 'Plus Jakarta Sans', 'Inter', sans-serif;
    transition: transform 0.3s ease;
}

.logo:hover {
    transform: translateY(-1px);
}

.logo .logo-icon {
    height: 48px;
    width: auto;
    object-fit: contain;
    filter: drop-shadow(0 2px 8px rgba(30, 110, 255, 0.15));
    transition: filter 0.3s ease;
    border-radius: 12px;
}

.logo:hover .logo-icon {
    filter: drop-shadow(0 4px 12px rgba(30, 110, 255, 0.25));
}

.logo .logo-text {
    height: 35px;
    width: auto;
    object-fit: contain;
}

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

.nav-link {
    text-decoration: none;
    color: var(--text-medium);
    font-weight: 500;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    padding: 0.5rem 0;
    position: relative;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--primary-color);
    transition: width 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.nav-link:hover {
    color: var(--primary-color);
}

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

.nav-menu .nav-link.btn-primary {
    padding: 0.75rem 1.75rem;
    border-radius: 10px;
    color: white;
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--secondary-color) 100%);
    box-shadow: 0 2px 8px rgba(37, 99, 235, 0.25);
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.nav-menu .nav-link.btn-primary::after {
    display: none;
}

.nav-menu .nav-link.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 16px rgba(37, 99, 235, 0.4);
    background: linear-gradient(135deg, var(--primary-dark) 0%, #0891b2 100%);
}

.mobile-menu-toggle {
    display: none;
    flex-direction: column;
    background: none;
    border: none;
    cursor: pointer;
    padding: 0.5rem;
}

.mobile-menu-toggle span {
    width: 25px;
    height: 3px;
    background: var(--text-dark);
    margin: 3px 0;
    transition: all 0.3s ease;
}

/* Buttons */
.btn {
    display: inline-block;
    padding: 1rem 2.25rem;
    font-size: 1rem;
    font-weight: 600;
    text-decoration: none;
    border-radius: 12px;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    border: 2px solid transparent;
    cursor: pointer;
    position: relative;
    overflow: hidden;
}

.btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.3), transparent);
    transition: left 0.5s;
}

.btn:hover::before {
    left: 100%;
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--secondary-color) 100%);
    color: white;
    box-shadow: 0 4px 12px rgba(37, 99, 235, 0.25);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 24px rgba(37, 99, 235, 0.35);
}

.btn-secondary {
    background: rgba(255, 255, 255, 0.1);
    color: white;
    border: 2px solid rgba(255, 255, 255, 0.9);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
}

.btn-secondary:hover {
    background: white;
    color: var(--primary-color);
    border-color: white;
    transform: translateY(-2px);
}

/* Hero Section */
.hero {
    padding: 160px 0 120px;
    background: linear-gradient(135deg, #1e3a8a 0%, #2563eb 50%, #3b82f6 100%);
    background-size: 200% 200%;
    animation: gradientShift 15s ease infinite;
    color: white;
    margin-top: 72px;
    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(37, 99, 235, 0.4) 0%, transparent 50%),
        radial-gradient(circle at 80% 20%, rgba(14, 165, 233, 0.3) 0%, transparent 50%),
        radial-gradient(circle at 60% 80%, rgba(59, 130, 246, 0.2) 0%, transparent 50%);
    pointer-events: none;
}

.hero .container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 5rem;
    align-items: center;
    position: relative;
    z-index: 1;
}

.hero-title {
    font-size: 3.75rem;
    font-weight: 800;
    line-height: 1.1;
    margin-bottom: 1.75rem;
    letter-spacing: -0.03em;
    font-family: 'Plus Jakarta Sans', 'Inter', sans-serif;
}

.highlight {
    background: linear-gradient(90deg, #fbbf24 0%, #f59e0b 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-subtitle {
    font-size: 1.25rem;
    margin-bottom: 3rem;
    opacity: 0.92;
    line-height: 1.65;
    font-weight: 400;
    max-width: 540px;
}

.hero-buttons {
    display: flex;
    gap: 1.25rem;
    flex-wrap: wrap;
}

.hero-image img {
    width: 100%;
    height: auto;
    border-radius: 20px;
    box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.4);
    transition: transform 0.5s cubic-bezier(0.4, 0, 0.2, 1);
}

.hero-image img:hover {
    transform: scale(1.02) translateY(-8px);
}

@keyframes gradientShift {
    0%, 100% { background-position: 0% 50%; }
    50% { background-position: 100% 50%; }
}

/* Section Header */
.section-header {
    text-align: center;
    margin-bottom: 4.5rem;
    position: relative;
    transform: translateZ(0);
}

.section-header h2 {
    font-size: 2.75rem;
    font-weight: 800;
    color: var(--text-dark);
    margin-bottom: 1.25rem;
    letter-spacing: -0.03em;
    position: relative;
    display: inline-block;
    will-change: auto;
    font-family: 'Plus Jakarta Sans', 'Inter', sans-serif;
}

.section-header h2::after {
    content: '';
    position: absolute;
    bottom: -12px;
    left: 50%;
    transform: translateX(-50%);
    width: 80px;
    height: 5px;
    background: linear-gradient(90deg, var(--primary-color) 0%, var(--secondary-color) 100%);
    border-radius: 3px;
}

.section-header p {
    font-size: 1.25rem;
    color: var(--text-light);
    max-width: 600px;
    margin: 0 auto;
    line-height: 1.7;
}

/* Services Section */
.services {
    padding: 120px 0 100px 0;
    background: linear-gradient(180deg, var(--bg-white) 0%, var(--bg-gray) 100%);
    scroll-margin-top: 100px;
    position: relative;
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 2.5rem;
}

.service-card {
    padding: 3rem;
    background: var(--bg-white);
    border: 1px solid rgba(226, 232, 240, 0.8);
    border-radius: 20px;
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
    overflow: hidden;
}

.service-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 5px;
    background: linear-gradient(90deg, var(--primary-color) 0%, var(--secondary-color) 100%);
    transform: scaleX(0);
    transition: transform 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

.service-card:hover {
    transform: translateY(-12px);
    box-shadow: 0 20px 50px -12px rgba(37, 99, 235, 0.25);
    border-color: rgba(37, 99, 235, 0.1);
}

.service-card:hover::before {
    transform: scaleX(1);
}

.service-icon {
    width: 70px;
    height: 70px;
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--secondary-color) 100%);
    border-radius: 18px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 2rem;
    transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    box-shadow: 0 8px 20px rgba(37, 99, 235, 0.25);
}

.service-card:hover .service-icon {
    transform: scale(1.1) rotate(-5deg);
}

.service-icon svg {
    width: 36px;
    height: 36px;
    color: white;
}

.service-card h3 {
    font-size: 1.5rem;
    margin-bottom: 1rem;
    color: var(--text-dark);
    font-weight: 700;
    letter-spacing: -0.02em;
    font-family: 'Plus Jakarta Sans', 'Inter', sans-serif;
}

.service-card p {
    color: var(--text-light);
    line-height: 1.75;
    font-size: 1rem;
}

/* About Section */
.about {
    padding: 120px 0 100px 0;
    background: var(--bg-white);
    scroll-margin-top: 100px;
}

.about-content {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: 4rem;
    align-items: center;
}

.about-text h2 {
    font-size: 2.75rem;
    font-weight: 800;
    margin-bottom: 1.25rem;
    color: var(--text-dark);
    letter-spacing: -0.03em;
    line-height: 1.15;
    font-family: 'Plus Jakarta Sans', 'Inter', sans-serif;
}

.lead {
    font-size: 1.375rem;
    color: var(--text-light);
    margin-bottom: 2.5rem;
    line-height: 1.6;
}

.about-features {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.feature {
    display: flex;
    gap: 1.25rem;
    align-items: flex-start;
    padding: 1.25rem;
    background: var(--bg-white);
    border-radius: 12px;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    border: 1px solid transparent;
}

.feature:hover {
    border-color: var(--border-color);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.05);
    transform: translateX(5px);
}

.feature-icon {
    width: 36px;
    height: 36px;
    background: linear-gradient(135deg, #10b981 0%, #059669 100%);
    color: white;
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    flex-shrink: 0;
    font-size: 1.125rem;
    box-shadow: 0 4px 10px rgba(16, 185, 129, 0.3);
}

.feature h4 {
    font-size: 1.125rem;
    margin-bottom: 0.5rem;
    font-weight: 700;
    color: var(--text-dark);
}

.feature p {
    color: var(--text-light);
    line-height: 1.6;
}

.about-stats {
    display: flex;
    flex-direction: column;
    gap: 2rem;
}

.stat {
    text-align: center;
    padding: 3rem 2.5rem;
    background: linear-gradient(135deg, rgba(37, 99, 235, 0.06), rgba(14, 165, 233, 0.06));
    border-radius: 20px;
    box-shadow: 0 4px 20px rgba(37, 99, 235, 0.08);
    border: 1px solid rgba(37, 99, 235, 0.12);
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.stat:hover {
    transform: translateY(-8px);
    box-shadow: 0 12px 28px rgba(37, 99, 235, 0.15);
    border-color: rgba(37, 99, 235, 0.2);
}

.stat-number {
    font-size: 4rem;
    font-weight: 800;
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--secondary-color) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 0.5rem;
    letter-spacing: -0.03em;
    font-family: 'Plus Jakarta Sans', 'Inter', sans-serif;
}

.stat-label {
    color: var(--text-medium);
    font-weight: 600;
    font-size: 1rem;
}

/* Portfolio Section */
.portfolio {
    padding: 120px 0 100px 0;
    background: var(--bg-gray);
    scroll-margin-top: 100px;
}

.portfolio-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(340px, 1fr));
    gap: 2.5rem;
}

.portfolio-item {
    background: var(--bg-white);
    border-radius: 20px;
    overflow: hidden;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.06);
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    border: 1px solid rgba(226, 232, 240, 0.8);
}

.portfolio-item:hover {
    transform: translateY(-12px);
    box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.2);
    border-color: rgba(37, 99, 235, 0.1);
}

.portfolio-image {
    height: 260px;
    overflow: hidden;
    background: linear-gradient(135deg, #1e3a8a 0%, #3b82f6 100%);
    position: relative;
}

.portfolio-image::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(180deg, transparent 0%, rgba(0, 0, 0, 0.1) 100%);
}

.portfolio-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.5s cubic-bezier(0.4, 0, 0.2, 1);
}

.portfolio-item:hover .portfolio-image img {
    transform: scale(1.08);
}

.placeholder-image {
    width: 100%;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    font-weight: 700;
    color: white;
}

.portfolio-info {
    padding: 2rem;
}

.portfolio-info h3 {
    font-size: 1.375rem;
    margin-bottom: 0.875rem;
    font-weight: 700;
    color: var(--text-dark);
    letter-spacing: -0.02em;
    font-family: 'Plus Jakarta Sans', 'Inter', sans-serif;
}

.portfolio-info p {
    color: var(--text-light);
    margin-bottom: 1.25rem;
    line-height: 1.7;
}

.portfolio-tag {
    display: inline-block;
    padding: 0.5rem 1.125rem;
    background: linear-gradient(135deg, rgba(37, 99, 235, 0.1), rgba(14, 165, 233, 0.1));
    color: var(--primary-color);
    border-radius: 24px;
    font-size: 0.875rem;
    font-weight: 600;
    border: 1px solid rgba(37, 99, 235, 0.2);
}

/* Contact Section */
.contact {
    padding: 120px 0 100px 0;
    background: var(--bg-white);
    scroll-margin-top: 100px;
}

.contact-wrapper {
    display: grid;
    grid-template-columns: 1fr 2fr;
    gap: 4rem;
    margin-top: 3rem;
}

.contact-info h3 {
    font-size: 1.875rem;
    margin-bottom: 1rem;
    font-weight: 700;
    color: var(--text-dark);
    letter-spacing: -0.02em;
    font-family: 'Plus Jakarta Sans', 'Inter', sans-serif;
}

.contact-info p {
    color: var(--text-light);
    margin-bottom: 2rem;
}

.contact-details {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

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

.contact-item svg {
    width: 24px;
    height: 24px;
    color: var(--primary-color);
    flex-shrink: 0;
}

/* Contact Form */
.contact-form {
    background: var(--bg-white);
    padding: 3.5rem;
    border-radius: 24px;
    box-shadow: 0 10px 40px -10px rgba(0, 0, 0, 0.1);
    border: 1px solid rgba(226, 232, 240, 0.8);
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1.5rem;
}

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

.form-group label {
    display: block;
    margin-bottom: 0.625rem;
    font-weight: 600;
    color: var(--text-dark);
    font-size: 0.95rem;
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 1rem 1.125rem;
    border: 2px solid var(--border-color);
    border-radius: 10px;
    font-size: 1rem;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    font-family: inherit;
    background: var(--bg-white);
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 4px rgba(30, 110, 255, 0.1);
    transform: translateY(-1px);
}

.form-group textarea {
    resize: vertical;
}

.btn-submit {
    width: 100%;
    margin-top: 1rem;
}

.hidden {
    display: none;
}

.form-message {
    margin-top: 1rem;
    padding: 1rem;
    border-radius: 8px;
    text-align: center;
    font-weight: 600;
    display: none;
}

.form-message.success {
    background: #d1fae5;
    color: #065f46;
}

.form-message.error {
    background: #fee2e2;
    color: #991b1b;
}

.form-message.show {
    display: block;
}

/* Footer */
.footer {
    background: linear-gradient(135deg, #0f172a 0%, #1e293b 100%);
    color: white;
    padding: 70px 0 30px;
    position: relative;
    overflow: hidden;
}

.footer::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 1px;
    background: linear-gradient(90deg, transparent, rgba(30, 110, 255, 0.5), transparent);
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 3rem;
    margin-bottom: 3rem;
}

.footer-logo {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    font-size: 1.25rem;
    font-weight: 700;
    margin-bottom: 1.25rem;
    font-family: 'Plus Jakarta Sans', 'Inter', sans-serif;
}

.footer-logo .logo-icon {
    height: 44px;
    width: auto;
    object-fit: contain;
    filter: drop-shadow(0 2px 8px rgba(30, 110, 255, 0.3));
    border-radius: 10px;
}

.footer-logo .company-name {
    color: white;
    font-size: 1.25rem;
    font-weight: 700;
    letter-spacing: -0.015em;
}

.footer-section p {
    color: rgba(255, 255, 255, 0.75);
    line-height: 1.7;
}

.footer-section h4 {
    margin-bottom: 1.25rem;
    font-size: 1.125rem;
    font-weight: 700;
    letter-spacing: -0.015em;
}

.footer-section ul {
    list-style: none;
}

.footer-section ul li {
    margin-bottom: 0.75rem;
}

.footer-section ul li a {
    color: rgba(255, 255, 255, 0.7);
    text-decoration: none;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    display: inline-block;
}

.footer-section ul li a:hover {
    color: white;
    transform: translateX(4px);
}

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

.social-links a {
    width: 40px;
    height: 40px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.3s ease;
}

.social-links a:hover {
    background: var(--primary-color);
    transform: translateY(-3px);
}

.social-links svg {
    width: 20px;
    height: 20px;
}

.footer-bottom {
    text-align: center;
    padding-top: 2.5rem;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.footer-bottom p {
    color: rgba(255, 255, 255, 0.6);
    font-size: 0.95rem;
}

/* Responsive Design */
@media (max-width: 968px) {
    .nav-menu {
        position: fixed;
        left: -100%;
        top: 70px;
        flex-direction: column;
        background: var(--bg-white);
        width: 100%;
        text-align: center;
        transition: left 0.3s ease;
        box-shadow: var(--shadow-lg);
        padding: 2rem 0;
    }

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

    .mobile-menu-toggle {
        display: flex;
    }

    .hero .container {
        grid-template-columns: 1fr;
        text-align: center;
    }

    .hero-title {
        font-size: 2.5rem;
    }

    .hero-subtitle {
        font-size: 1.125rem;
    }

    .hero-buttons {
        justify-content: center;
    }

    .hero {
        padding: 100px 0 60px;
    }

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

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

    .form-row {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 640px) {
    .hero-title {
        font-size: 2rem;
        line-height: 1.2;
    }

    .hero-subtitle {
        font-size: 1rem;
    }

    .section-header h2 {
        font-size: 2rem;
    }

    .section-header p {
        font-size: 1rem;
    }

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

    .portfolio-grid {
        grid-template-columns: 1fr;
    }

    .footer-content {
        grid-template-columns: 1fr;
        text-align: center;
    }

    .social-links {
        justify-content: center;
    }

    .contact-form {
        padding: 2rem;
    }

    .btn {
        padding: 0.875rem 1.75rem;
    }

    .logo .logo-icon {
        height: 40px;
    }
}

/* Animations */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.fade-in-up {
    animation: fadeInUp 0.6s ease-out;
}