/* Reset and Base Styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    /* Color Palette */
    --color-primary: #1e3a8a;
    --color-primary-dark: #1e40af;
    --color-primary-light: #3b82f6;
    --color-accent: #60a5fa;
    --color-bg-dark: #0f172a;
    --color-bg-light: #f8fafc;
    --color-bg-gray: #f1f5f9;
    --color-text-dark: #1e293b;
    --color-text-gray: #64748b;
    --color-text-light: #94a3b8;
    --color-white: #ffffff;
    --color-black: #000000;
    --color-border: #e2e8f0;
    --color-success: #10b981;

    /* Spacing */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 2rem;
    --spacing-lg: 4rem;
    --spacing-xl: 6rem;

    /* Typography */
    --font-primary: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    --font-size-xs: 0.875rem;
    --font-size-sm: 1rem;
    --font-size-md: 1.125rem;
    --font-size-lg: 1.5rem;
    --font-size-xl: 2rem;
    --font-size-2xl: 2.5rem;
    --font-size-3xl: 3.5rem;

    /* Shadows */
    --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 -1px rgba(0, 0, 0, 0.06);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);

    /* Border Radius */
    --radius-sm: 0.375rem;
    --radius-md: 0.5rem;
    --radius-lg: 1rem;
    --radius-xl: 1.5rem;

    /* Transitions */
    --transition-fast: 150ms ease-in-out;
    --transition-base: 300ms ease-in-out;
    --transition-slow: 500ms ease-in-out;

    /* Nav height */
    --nav-height: 80px;
}

html {
    scroll-behavior: smooth;
    font-size: 16px;
}

body {
    font-family: var(--font-primary);
    color: var(--color-text-dark);
    line-height: 1.6;
    background-color: var(--color-white);
    overflow-x: hidden;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-md);
}

/* Navigation */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    background-color: var(--color-white);
    box-shadow: var(--shadow-sm);
    z-index: 1000;
    transition: all var(--transition-base);
}

.navbar.scrolled {
    box-shadow: var(--shadow-md);
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-md);
    height: var(--nav-height);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.nav-logo a {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    text-decoration: none;
    color: var(--color-primary);
}

.nav-logo-img {
    width: 50px;
    height: auto;
}

.nav-logo-text {
    font-size: var(--font-size-lg);
    font-weight: 700;
    letter-spacing: -0.02em;
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: var(--spacing-md);
    align-items: center;
}

.nav-link {
    text-decoration: none;
    color: var(--color-text-dark);
    font-weight: 500;
    font-size: var(--font-size-sm);
    padding: 0.5rem 1rem;
    border-radius: var(--radius-md);
    transition: all var(--transition-fast);
}

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

.nav-link-cta {
    background-color: var(--color-primary);
    color: var(--color-white);
}

.nav-link-cta:hover {
    background-color: var(--color-primary-dark);
    color: var(--color-white);
}

.nav-toggle {
    display: none;
    flex-direction: column;
    gap: 4px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 0.5rem;
}

.nav-toggle span {
    width: 25px;
    height: 3px;
    background-color: var(--color-primary);
    border-radius: 2px;
    transition: all var(--transition-base);
}

.nav-toggle.active span:nth-child(1) {
    transform: rotate(45deg) translate(5px, 5px);
}

.nav-toggle.active span:nth-child(2) {
    opacity: 0;
}

.nav-toggle.active span:nth-child(3) {
    transform: rotate(-45deg) translate(7px, -6px);
}

/* Section Header */
.section-header {
    text-align: center;
    margin-bottom: var(--spacing-xl);
}

.section-label {
    display: inline-block;
    font-size: var(--font-size-xs);
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 1px;
    color: var(--color-primary-light);
    margin-bottom: var(--spacing-sm);
}

.section-header h2 {
    font-size: var(--font-size-2xl);
    font-weight: 700;
    color: var(--color-primary);
    margin-bottom: var(--spacing-sm);
    line-height: 1.2;
}

.section-header p {
    font-size: var(--font-size-md);
    color: var(--color-text-gray);
    max-width: 700px;
    margin: 0 auto;
}

/* Buttons */
.btn {
    display: inline-block;
    padding: 0.875rem 2rem;
    font-size: var(--font-size-sm);
    font-weight: 600;
    text-decoration: none;
    border-radius: var(--radius-lg);
    transition: all var(--transition-base);
    cursor: pointer;
    border: 2px solid transparent;
    text-align: center;
}

.btn-large {
    padding: 1.125rem 2.5rem;
    font-size: var(--font-size-md);
}

.btn-primary {
    background-color: var(--color-primary);
    color: var(--color-white);
    border-color: var(--color-primary);
}

.btn-primary:hover {
    background-color: var(--color-primary-dark);
    border-color: var(--color-primary-dark);
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

.btn-outline {
    background-color: transparent;
    color: var(--color-primary);
    border-color: var(--color-primary);
}

.btn-outline:hover {
    background-color: var(--color-primary);
    color: var(--color-white);
}

/* Hero Section */
.hero-section {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    padding: calc(var(--nav-height) + var(--spacing-xl)) var(--spacing-md) var(--spacing-xl);
    background: linear-gradient(135deg, var(--color-bg-dark) 0%, var(--color-primary) 100%);
    color: var(--color-white);
    overflow: hidden;
}

.hero-bg {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    opacity: 0.1;
    background-image: url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none' fill-rule='evenodd'%3E%3Cg fill='%23ffffff' fill-opacity='1'%3E%3Cpath d='M36 34v-4h-2v4h-4v2h4v4h2v-4h4v-2h-4zm0-30V0h-2v4h-4v2h4v4h2V6h4V4h-4zM6 34v-4H4v4H0v2h4v4h2v-4h4v-2H6zM6 4V0H4v4H0v2h4v4h2V6h4V4H6z'/%3E%3C/g%3E%3C/g%3E%3C/svg%3E");
}

.hero-content {
    max-width: 900px;
    text-align: center;
    position: relative;
    z-index: 1;
    animation: fadeInUp 1s ease-out;
}

.hero-title {
    font-size: var(--font-size-3xl);
    font-weight: 800;
    line-height: 1.1;
    margin-bottom: var(--spacing-md);
    letter-spacing: -0.02em;
}

.highlight-text {
    background: linear-gradient(135deg, var(--color-accent), #60a5fa);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-subtitle {
    font-size: var(--font-size-lg);
    line-height: 1.6;
    margin-bottom: var(--spacing-lg);
    color: rgba(255, 255, 255, 0.9);
}

.hero-features {
    display: flex;
    justify-content: center;
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-lg);
    flex-wrap: wrap;
}

.hero-feature {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    font-size: var(--font-size-md);
    color: rgba(255, 255, 255, 0.9);
}

.hero-feature svg {
    width: 24px;
    height: 24px;
    color: var(--color-success);
}

.hero-cta {
    display: flex;
    gap: var(--spacing-sm);
    justify-content: center;
    flex-wrap: wrap;
}

/* Services Section */
.services-section {
    padding: var(--spacing-xl) 0;
    background-color: var(--color-bg-light);
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: var(--spacing-lg);
}

.service-detail-card {
    background-color: var(--color-white);
    padding: var(--spacing-lg);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-md);
    transition: all var(--transition-base);
    border: 2px solid transparent;
}

.service-detail-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-xl);
    border-color: var(--color-primary-light);
}

.service-detail-icon {
    width: 70px;
    height: 70px;
    background: linear-gradient(135deg, var(--color-primary), var(--color-primary-light));
    border-radius: var(--radius-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: var(--spacing-md);
}

.service-detail-icon svg {
    width: 36px;
    height: 36px;
    color: var(--color-white);
}

.service-detail-card h3 {
    font-size: var(--font-size-lg);
    font-weight: 700;
    color: var(--color-primary);
    margin-bottom: var(--spacing-sm);
}

.service-detail-card > p {
    color: var(--color-text-gray);
    margin-bottom: var(--spacing-md);
    line-height: 1.7;
}

.service-features {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xs);
}

.service-features li {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    color: var(--color-text-gray);
    font-size: var(--font-size-sm);
}

.service-features li::before {
    content: "✓";
    color: var(--color-success);
    font-weight: 700;
    font-size: var(--font-size-md);
}

/* Cases Section */
.cases-section {
    padding: var(--spacing-xl) 0;
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-bg-dark) 100%);
    color: var(--color-white);
}

.cases-section .section-label,
.cases-section .section-header h2,
.cases-section .section-header p {
    color: var(--color-white);
}

.cases-link {
    text-align: center;
    max-width: 600px;
    margin: 0 auto;
}

.cases-link p {
    font-size: var(--font-size-lg);
    margin-bottom: var(--spacing-md);
    color: rgba(255, 255, 255, 0.9);
}

/* Process Section */
.process-section {
    padding: var(--spacing-xl) 0;
    background-color: var(--color-white);
}

.process-timeline {
    max-width: 900px;
    margin: 0 auto;
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xl);
}

.process-step {
    display: grid;
    grid-template-columns: 100px 1fr;
    gap: var(--spacing-lg);
    position: relative;
}

.process-step:not(:last-child)::after {
    content: '';
    position: absolute;
    left: 50px;
    top: 100px;
    width: 2px;
    height: calc(100% + var(--spacing-xl));
    background: linear-gradient(180deg, var(--color-primary-light), transparent);
}

.process-number {
    width: 100px;
    height: 100px;
    background: linear-gradient(135deg, var(--color-primary), var(--color-primary-light));
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: var(--font-size-xl);
    font-weight: 700;
    color: var(--color-white);
    box-shadow: var(--shadow-lg);
    position: relative;
    z-index: 1;
}

.process-content h3 {
    font-size: var(--font-size-xl);
    color: var(--color-primary);
    margin-bottom: var(--spacing-sm);
}

.process-content > p {
    color: var(--color-text-gray);
    margin-bottom: var(--spacing-md);
    font-size: var(--font-size-md);
}

.process-list {
    list-style: none;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: var(--spacing-sm);
}

.process-list li {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    color: var(--color-text-gray);
    font-size: var(--font-size-sm);
}

.process-list li::before {
    content: "•";
    color: var(--color-primary-light);
    font-weight: 700;
    font-size: var(--font-size-lg);
}

/* About Section */
.about-section {
    padding: var(--spacing-xl) 0;
    background-color: var(--color-bg-light);
}

.about-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-xl);
}

.about-content .section-label {
    text-align: left;
}

.about-content h2 {
    font-size: var(--font-size-2xl);
    color: var(--color-primary);
    margin-bottom: var(--spacing-md);
    text-align: left;
}

.about-intro {
    font-size: var(--font-size-lg);
    font-weight: 500;
    color: var(--color-text-dark);
    margin-bottom: var(--spacing-md);
    line-height: 1.7;
}

.about-content p {
    color: var(--color-text-gray);
    margin-bottom: var(--spacing-md);
    line-height: 1.8;
}

.about-stats {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--spacing-md);
    margin-top: var(--spacing-lg);
}

.stat-item {
    text-align: center;
    padding: var(--spacing-md);
    background-color: var(--color-white);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
}

.stat-number {
    font-size: var(--font-size-2xl);
    font-weight: 700;
    color: var(--color-primary);
    margin-bottom: var(--spacing-xs);
}

.stat-label {
    font-size: var(--font-size-sm);
    color: var(--color-text-gray);
}

.about-values h3 {
    font-size: var(--font-size-xl);
    color: var(--color-primary);
    margin-bottom: var(--spacing-lg);
}

.value-item {
    display: flex;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-lg);
}

.value-item svg {
    width: 48px;
    height: 48px;
    color: var(--color-primary-light);
    flex-shrink: 0;
}

.value-item h4 {
    font-size: var(--font-size-md);
    color: var(--color-primary);
    margin-bottom: var(--spacing-xs);
}

.value-item p {
    color: var(--color-text-gray);
    font-size: var(--font-size-sm);
    margin: 0;
}

/* Contact Section */
.contact-section {
    padding: var(--spacing-xl) 0;
    background-color: var(--color-white);
}

.contact-content {
    max-width: 900px;
    margin: 0 auto;
}

.contact-info-main {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-xl);
}

.contact-main-card {
    background-color: var(--color-bg-light);
    padding: var(--spacing-lg);
    border-radius: var(--radius-xl);
    text-align: center;
    border: 2px solid var(--color-border);
    transition: all var(--transition-base);
}

.contact-main-card:hover {
    border-color: var(--color-primary-light);
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
}

.contact-main-icon {
    width: 70px;
    height: 70px;
    background: linear-gradient(135deg, var(--color-primary), var(--color-primary-light));
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto var(--spacing-md);
}

.contact-main-icon svg {
    width: 32px;
    height: 32px;
    color: var(--color-white);
}

.contact-main-card h3 {
    font-size: var(--font-size-lg);
    color: var(--color-primary);
    margin-bottom: var(--spacing-sm);
}

.contact-main-card p {
    color: var(--color-text-gray);
    margin-bottom: var(--spacing-md);
}

.contact-email,
.contact-social {
    display: inline-block;
    font-size: var(--font-size-lg);
    font-weight: 600;
    color: var(--color-primary);
    text-decoration: none;
    transition: color var(--transition-fast);
}

.contact-email:hover,
.contact-social:hover {
    color: var(--color-primary-light);
}

.contact-cta-box {
    background: linear-gradient(135deg, var(--color-primary), var(--color-primary-dark));
    padding: var(--spacing-xl);
    border-radius: var(--radius-xl);
    text-align: center;
    color: var(--color-white);
}

.contact-cta-box h3 {
    font-size: var(--font-size-xl);
    margin-bottom: var(--spacing-md);
}

.contact-cta-box p {
    font-size: var(--font-size-md);
    margin-bottom: var(--spacing-lg);
    color: rgba(255, 255, 255, 0.9);
    line-height: 1.7;
}

/* Footer */
.footer {
    background-color: var(--color-bg-dark);
    color: var(--color-text-light);
    padding: var(--spacing-xl) 0 var(--spacing-md);
}

.footer-content {
    display: grid;
    grid-template-columns: 2fr 3fr;
    gap: var(--spacing-xl);
    margin-bottom: var(--spacing-lg);
    padding-bottom: var(--spacing-lg);
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.footer-brand {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
}

.footer-logo {
    width: 80px;
    height: auto;
    opacity: 0.9;
}

.footer-tagline {
    font-size: var(--font-size-md);
    color: var(--color-text-light);
}

.footer-links {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--spacing-lg);
}

.footer-column h4 {
    font-size: var(--font-size-md);
    color: var(--color-white);
    margin-bottom: var(--spacing-md);
    font-weight: 600;
}

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

.footer-column li {
    margin-bottom: var(--spacing-sm);
}

.footer-column a {
    color: var(--color-text-light);
    text-decoration: none;
    font-size: var(--font-size-sm);
    transition: color var(--transition-fast);
}

.footer-column a:hover {
    color: var(--color-white);
}

.footer-bottom {
    text-align: center;
}

.footer-bottom p {
    font-size: var(--font-size-xs);
    color: var(--color-text-light);
    margin: 0.25rem 0;
}

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

/* Responsive Design */
@media (max-width: 1024px) {
    .about-grid {
        grid-template-columns: 1fr;
    }

    .about-stats {
        grid-template-columns: repeat(3, 1fr);
    }

    .footer-links {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    :root {
        --font-size-3xl: 2.5rem;
        --font-size-2xl: 2rem;
        --font-size-xl: 1.5rem;
        --spacing-xl: 4rem;
        --spacing-lg: 3rem;
        --nav-height: 70px;
    }

    .nav-toggle {
        display: flex;
    }

    .nav-menu {
        position: fixed;
        top: var(--nav-height);
        left: -100%;
        width: 100%;
        height: calc(100vh - var(--nav-height));
        background-color: var(--color-white);
        flex-direction: column;
        align-items: center;
        justify-content: center;
        gap: var(--spacing-md);
        transition: left var(--transition-base);
        box-shadow: var(--shadow-lg);
    }

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

    .nav-link {
        font-size: var(--font-size-md);
    }

    .hero-features {
        flex-direction: column;
        gap: var(--spacing-sm);
    }

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

    .btn {
        width: 100%;
    }

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

    .process-step {
        grid-template-columns: 70px 1fr;
        gap: var(--spacing-md);
    }

    .process-number {
        width: 70px;
        height: 70px;
        font-size: var(--font-size-lg);
    }

    .process-step:not(:last-child)::after {
        left: 35px;
        top: 70px;
    }

    .process-list {
        grid-template-columns: 1fr;
    }

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

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

    .footer-links {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 480px) {
    :root {
        --font-size-3xl: 2rem;
        --font-size-2xl: 1.75rem;
        --spacing-xl: 3rem;
        --spacing-lg: 2rem;
    }

    .container {
        padding: 0 var(--spacing-sm);
    }

    .process-content h3 {
        font-size: var(--font-size-lg);
    }
}

/* Accessibility */
@media (prefers-reduced-motion: reduce) {
    * {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }

    html {
        scroll-behavior: auto;
    }
}

a:focus,
button:focus {
    outline: 2px solid var(--color-accent);
    outline-offset: 2px;
}

::selection {
    background-color: var(--color-primary-light);
    color: var(--color-white);
}