/* Root Variables */
:root {
    --color-primary: #0A1628;
    --color-accent: #FF6B35;
    --color-bg: #F7F7F7;
    --color-text: #2E3440;
    --color-white: #FFFFFF;
    --color-gray: #6B7280;
    --color-gray-light: #E5E7EB;

    --font-primary: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;

    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    --shadow: 0 10px 30px rgba(10, 22, 40, 0.1);
    --shadow-lg: 0 20px 60px rgba(10, 22, 40, 0.15);
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-primary);
    font-size: 16px;
    line-height: 1.6;
    color: var(--color-text);
    background-color: var(--color-bg);
    overflow-x: hidden;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
    font-weight: 700;
    line-height: 1.2;
    color: var(--color-primary);
}

a {
    text-decoration: none;
    color: inherit;
    transition: var(--transition);
}

/* Header & Navigation */
.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background: var(--color-white);
    box-shadow: 0 2px 20px rgba(10, 22, 40, 0.08);
    z-index: 1000;
}

.nav {
    padding: 20px 0;
}

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

.logo {
    display: flex;
    align-items: center;
    gap: 12px;
    font-size: 24px;
    font-weight: 800;
    color: var(--color-primary);
}

.logo-img {
    width: 40px;
    height: 40px;
}

.nav-list {
    display: flex;
    list-style: none;
    gap: 40px;
}

.nav-link {
    font-weight: 500;
    color: var(--color-text);
    position: relative;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--color-accent);
    transition: var(--transition);
}

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

.nav-toggle {
    display: none;
    background: none;
    border: none;
    cursor: pointer;
    padding: 8px;
}

.hamburger {
    display: block;
    width: 28px;
    height: 2px;
    background: var(--color-primary);
    position: relative;
    transition: var(--transition);
}

.hamburger::before,
.hamburger::after {
    content: '';
    position: absolute;
    width: 28px;
    height: 2px;
    background: var(--color-primary);
    transition: var(--transition);
}

.hamburger::before {
    top: -8px;
}

.hamburger::after {
    bottom: -8px;
}

/* Hero Section */
.hero {
    padding: 180px 0 120px;
    background: linear-gradient(135deg, var(--color-primary) 0%, #1a2d4a 100%);
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -10%;
    width: 600px;
    height: 600px;
    background: var(--color-accent);
    opacity: 0.1;
    border-radius: 50%;
    filter: blur(100px);
}

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

.hero-title {
    font-size: 72px;
    font-weight: 800;
    color: var(--color-white);
    margin-bottom: 24px;
    line-height: 1.1;
}

.title-line {
    display: block;
}

.title-line.accent {
    color: var(--color-accent);
}

.hero-subtitle {
    font-size: 20px;
    color: rgba(255, 255, 255, 0.9);
    max-width: 600px;
    margin-bottom: 40px;
    line-height: 1.8;
}

.hero-cta {
    display: flex;
    gap: 20px;
    margin-bottom: 60px;
}

.btn {
    padding: 16px 32px;
    border-radius: 8px;
    font-weight: 600;
    font-size: 16px;
    cursor: pointer;
    border: 2px solid transparent;
    transition: var(--transition);
    display: inline-block;
    text-align: center;
}

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

.btn-primary:hover {
    background: #e55a28;
    transform: translateY(-2px);
    box-shadow: 0 10px 30px rgba(255, 107, 53, 0.3);
}

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

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

.btn-full {
    width: 100%;
}

.hero-stats {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 40px;
    max-width: 700px;
}

.stat {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.stat-number {
    font-size: 48px;
    font-weight: 800;
    color: var(--color-accent);
    line-height: 1;
}

.stat-label {
    font-size: 14px;
    color: rgba(255, 255, 255, 0.8);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

/* Section Styles */
section {
    padding: 100px 0;
}

.section-header {
    text-align: center;
    margin-bottom: 60px;
}

.section-title {
    font-size: 48px;
    font-weight: 800;
    margin-bottom: 16px;
}

.section-subtitle {
    font-size: 18px;
    color: var(--color-gray);
    max-width: 600px;
    margin: 0 auto;
}

/* Services Section */
.services {
    background: var(--color-white);
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
}

.service-card {
    background: var(--color-white);
    padding: 40px;
    border-radius: 12px;
    border: 2px solid var(--color-gray-light);
    transition: var(--transition);
    position: relative;
}

.service-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-lg);
    border-color: var(--color-accent);
}

.service-card.featured {
    background: linear-gradient(135deg, var(--color-primary) 0%, #1a2d4a 100%);
    border-color: var(--color-accent);
    color: var(--color-white);
}

.service-card.featured .service-title,
.service-card.featured .service-description,
.service-card.featured .service-features li {
    color: var(--color-white);
}

.service-card.featured .service-icon {
    color: var(--color-accent);
}

.featured-badge {
    position: absolute;
    top: -12px;
    right: 20px;
    background: var(--color-accent);
    color: var(--color-white);
    padding: 6px 16px;
    border-radius: 20px;
    font-size: 12px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.service-icon {
    width: 64px;
    height: 64px;
    margin-bottom: 24px;
    color: var(--color-accent);
}

.service-title {
    font-size: 24px;
    margin-bottom: 16px;
}

.service-description {
    font-size: 16px;
    color: var(--color-gray);
    margin-bottom: 24px;
    line-height: 1.7;
}

.service-features {
    list-style: none;
}

.service-features li {
    padding: 8px 0;
    padding-left: 24px;
    position: relative;
    color: var(--color-text);
    font-size: 14px;
}

.service-features li::before {
    content: '→';
    position: absolute;
    left: 0;
    color: var(--color-accent);
    font-weight: 700;
}

/* About Section */
.about {
    background: var(--color-bg);
}

.about-grid {
    display: grid;
    grid-template-columns: 1.2fr 0.8fr;
    gap: 80px;
    align-items: center;
}

.about-text {
    font-size: 18px;
    color: var(--color-gray);
    margin-bottom: 20px;
    line-height: 1.8;
}

.about-features {
    margin-top: 40px;
    display: flex;
    flex-direction: column;
    gap: 24px;
}

.feature-item {
    display: flex;
    gap: 20px;
}

.feature-icon {
    width: 48px;
    height: 48px;
    background: var(--color-accent);
    color: var(--color-white);
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 24px;
    font-weight: 700;
    flex-shrink: 0;
}

.feature-text h4 {
    font-size: 18px;
    margin-bottom: 6px;
}

.feature-text p {
    color: var(--color-gray);
    font-size: 14px;
}

.about-visual {
    background: var(--color-white);
    border-radius: 16px;
    padding: 60px 40px;
    box-shadow: var(--shadow);
}

.visual-card {
    display: flex;
    flex-direction: column;
    gap: 40px;
}

.visual-stat {
    display: flex;
    flex-direction: column;
    gap: 8px;
    padding: 20px 0;
    border-bottom: 2px solid var(--color-gray-light);
}

.visual-stat:last-child {
    border-bottom: none;
}

.visual-number {
    font-size: 56px;
    font-weight: 800;
    color: var(--color-accent);
    line-height: 1;
}

.visual-label {
    font-size: 16px;
    color: var(--color-gray);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

/* Results Section */
.results {
    background: var(--color-white);
}

.results-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
}

.result-card {
    background: var(--color-bg);
    padding: 40px;
    border-radius: 12px;
    transition: var(--transition);
    border: 2px solid transparent;
}

.result-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-lg);
    border-color: var(--color-accent);
}

.result-metric {
    font-size: 56px;
    font-weight: 800;
    color: var(--color-accent);
    margin-bottom: 20px;
    line-height: 1;
}

.result-title {
    font-size: 20px;
    margin-bottom: 12px;
}

.result-description {
    color: var(--color-gray);
    font-size: 15px;
    line-height: 1.7;
    margin-bottom: 20px;
}

.result-tags {
    display: flex;
    gap: 8px;
    flex-wrap: wrap;
}

.tag {
    padding: 6px 12px;
    background: var(--color-white);
    border-radius: 20px;
    font-size: 12px;
    font-weight: 600;
    color: var(--color-accent);
    border: 1px solid var(--color-accent);
}

/* Contact Section */
.contact {
    background: var(--color-bg);
}

.contact-wrapper {
    display: grid;
    grid-template-columns: 0.9fr 1.1fr;
    gap: 80px;
    align-items: start;
}

.contact-description {
    font-size: 18px;
    color: var(--color-gray);
    margin-bottom: 40px;
    line-height: 1.8;
}

.contact-details {
    display: flex;
    flex-direction: column;
    gap: 30px;
}

.contact-item {
    display: flex;
    gap: 20px;
}

.contact-icon {
    width: 48px;
    height: 48px;
    background: var(--color-white);
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--color-accent);
    flex-shrink: 0;
}

.contact-item h4 {
    font-size: 16px;
    margin-bottom: 6px;
    color: var(--color-primary);
}

.contact-item p,
.contact-item a {
    color: var(--color-gray);
    font-size: 14px;
}

.contact-item a:hover {
    color: var(--color-accent);
}

/* Contact Form */
.contact-form {
    background: var(--color-white);
    padding: 50px;
    border-radius: 16px;
    box-shadow: var(--shadow);
}

.form-group {
    margin-bottom: 24px;
}

.form-group input,
.form-group textarea,
.form-group select {
    width: 100%;
    padding: 16px 20px;
    border: 2px solid var(--color-gray-light);
    border-radius: 8px;
    font-family: var(--font-primary);
    font-size: 16px;
    color: var(--color-text);
    transition: var(--transition);
    background: var(--color-white);
}

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

.form-group textarea {
    resize: vertical;
    min-height: 120px;
}

/* Footer */
.footer {
    background: var(--color-primary);
    color: var(--color-white);
    padding: 60px 0 30px;
}

.footer-content {
    display: grid;
    grid-template-columns: 1.5fr 2fr;
    gap: 60px;
    margin-bottom: 40px;
}

.footer-logo {
    display: flex;
    align-items: center;
    gap: 12px;
    font-size: 24px;
    font-weight: 800;
    color: var(--color-white);
    margin-bottom: 16px;
}

.footer-tagline {
    color: rgba(255, 255, 255, 0.7);
    font-size: 14px;
    line-height: 1.6;
}

.footer-links {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 40px;
}

.footer-column h4 {
    color: var(--color-white);
    font-size: 16px;
    margin-bottom: 16px;
    font-weight: 600;
}

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

.footer-column li {
    margin-bottom: 12px;
}

.footer-column a {
    color: rgba(255, 255, 255, 0.7);
    font-size: 14px;
}

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

.footer-bottom {
    padding-top: 30px;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    text-align: center;
}

.footer-bottom p {
    color: rgba(255, 255, 255, 0.6);
    font-size: 14px;
}

/* Responsive Design */
@media (max-width: 968px) {
    .nav-menu {
        position: fixed;
        top: 76px;
        left: -100%;
        width: 100%;
        height: calc(100vh - 76px);
        background: var(--color-white);
        transition: var(--transition);
        box-shadow: var(--shadow);
    }

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

    .nav-list {
        flex-direction: column;
        padding: 40px;
        gap: 0;
    }

    .nav-list li {
        padding: 20px 0;
        border-bottom: 1px solid var(--color-gray-light);
    }

    .nav-toggle {
        display: block;
    }

    .hero-title {
        font-size: 48px;
    }

    .hero-stats {
        grid-template-columns: 1fr;
        gap: 30px;
    }

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

    .about-grid {
        grid-template-columns: 1fr;
        gap: 40px;
    }

    .contact-wrapper {
        grid-template-columns: 1fr;
        gap: 40px;
    }

    .footer-content {
        grid-template-columns: 1fr;
        gap: 40px;
    }

    .footer-links {
        grid-template-columns: 1fr;
        gap: 30px;
    }
}

@media (max-width: 640px) {
    .hero {
        padding: 140px 0 80px;
    }

    .hero-title {
        font-size: 36px;
    }

    .hero-subtitle {
        font-size: 16px;
    }

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

    .btn {
        width: 100%;
    }

    section {
        padding: 60px 0;
    }

    .section-title {
        font-size: 32px;
    }

    .section-subtitle {
        font-size: 16px;
    }

    .contact-form {
        padding: 30px;
    }
}