/* ===================================
   CSS Variables & Reset
   =================================== */
:root {
    --primary: #2563eb;
    --primary-dark: #1d4ed8;
    --primary-light: #3b82f6;
    --primary-glow: rgba(37, 99, 235, 0.15);
    --accent: #06b6d4;
    --accent-dark: #0891b2;
    --gradient-start: #2563eb;
    --gradient-end: #06b6d4;
    --dark: #0f172a;
    --dark-lighter: #1e293b;
    --gray-900: #111827;
    --gray-800: #1f2937;
    --gray-700: #374151;
    --gray-600: #4b5563;
    --gray-500: #6b7280;
    --gray-400: #9ca3af;
    --gray-300: #d1d5db;
    --gray-200: #e5e7eb;
    --gray-100: #f3f4f6;
    --gray-50: #f9fafb;
    --white: #ffffff;
    --success: #10b981;
    --warning: #f59e0b;
    --error: #ef4444;
    --font-primary: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    --font-mono: 'JetBrains Mono', 'Fira Code', monospace;
    --shadow-sm: 0 1px 2px 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-glow: 0 0 40px rgba(37, 99, 235, 0.3);
    --radius-sm: 6px;
    --radius-md: 10px;
    --radius-lg: 16px;
    --radius-xl: 24px;
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

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

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

body {
    font-family: var(--font-primary);
    color: var(--gray-700);
    background: var(--white);
    line-height: 1.6;
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

img { max-width: 100%; display: block; }
a { text-decoration: none; color: inherit; }
ul { list-style: none; }
button { cursor: pointer; border: none; background: none; font-family: inherit; }
input, select, textarea { font-family: inherit; }

.container {
    width: 100%;
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 24px;
}

/* ===================================
   Buttons
   =================================== */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 12px 28px;
    font-size: 0.9375rem;
    font-weight: 600;
    border-radius: var(--radius-md);
    transition: var(--transition);
    white-space: nowrap;
}

.btn-primary {
    background: linear-gradient(135deg, var(--gradient-start), var(--gradient-end));
    color: var(--white);
    box-shadow: 0 4px 15px rgba(37, 99, 235, 0.35);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(37, 99, 235, 0.45);
}

.btn-outline {
    border: 2px solid var(--gray-300);
    color: var(--dark);
    background: transparent;
}

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

.btn-white {
    background: var(--white);
    color: var(--primary);
    box-shadow: var(--shadow-lg);
}

.btn-white:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-xl);
}

.btn-nav {
    padding: 10px 24px;
    font-size: 0.875rem;
    background: linear-gradient(135deg, var(--gradient-start), var(--gradient-end));
    color: var(--white);
    border-radius: var(--radius-sm);
}

.btn-nav:hover {
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(37, 99, 235, 0.4);
}

.btn-lg { padding: 16px 36px; font-size: 1rem; }
.btn-full { width: 100%; }

/* ===================================
   Navigation
   =================================== */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    padding: 20px 0;
    transition: var(--transition);
}

.navbar.scrolled {
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    padding: 12px 0;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.08);
}

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

.logo {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 1.375rem;
    font-weight: 800;
    color: var(--dark);
}

.logo-icon {
    width: 36px;
    height: 36px;
    background: linear-gradient(135deg, var(--gradient-start), var(--gradient-end));
    border-radius: var(--radius-sm);
    position: relative;
}

.logo-icon::before {
    content: '';
    position: absolute;
    inset: 8px;
    background: var(--white);
    border-radius: 4px;
    opacity: 0.3;
}

.logo-accent {
    color: var(--primary);
    font-weight: 600;
}

.nav-links {
    display: flex;
    align-items: center;
    gap: 32px;
}

.nav-links a {
    font-size: 0.9375rem;
    font-weight: 500;
    color: var(--gray-600);
    transition: var(--transition);
    position: relative;
}

.nav-links a:not(.btn):hover {
    color: var(--primary);
}

.nav-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    padding: 8px;
}

.nav-toggle span {
    width: 24px;
    height: 2px;
    background: var(--dark);
    border-radius: 2px;
    transition: var(--transition);
}

body.nav-open {
    overflow: hidden;
    position: fixed;
    width: 100%;
}

/* ===================================
   Language Selector
   =================================== */
.lang-selector-wrapper {
    position: relative;
}

.lang-selector {
    display: flex;
    align-items: center;
    gap: 6px;
    padding: 8px 12px;
    background: transparent;
    border: 1px solid var(--gray-300);
    border-radius: var(--radius-sm);
    cursor: pointer;
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--dark);
    transition: var(--transition);
}

.lang-selector:hover {
    background: var(--gray-100);
    border-color: var(--primary);
}

.lang-flag {
    font-size: 1.125rem;
    line-height: 1;
}

.lang-code {
    font-size: 0.75rem;
    letter-spacing: 0.5px;
}

.lang-chevron {
    width: 12px;
    height: 12px;
    transition: transform var(--transition);
    color: var(--gray-500);
}

.lang-selector:hover .lang-chevron {
    color: var(--primary);
}

.lang-dropdown {
    position: absolute;
    top: calc(100% + 8px);
    right: 0;
    background: var(--white);
    border: 1px solid var(--gray-200);
    border-radius: var(--radius-sm);
    box-shadow: var(--shadow-lg);
    list-style: none;
    margin: 0;
    padding: 8px 0;
    min-width: 160px;
    opacity: 0;
    visibility: hidden;
    transform: translateY(-10px);
    transition: all var(--transition);
    z-index: 1002;
}

.lang-dropdown.active {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.lang-dropdown li {
    margin: 0;
    padding: 0;
}

.lang-dropdown a {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 10px 16px;
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--dark);
    text-decoration: none;
    transition: var(--transition);
}

.lang-dropdown a:hover {
    background: var(--gray-100);
    color: var(--primary);
}

.lang-dropdown a.active {
    background: linear-gradient(135deg, rgba(37, 99, 235, 0.08), rgba(6, 182, 212, 0.08));
    color: var(--primary);
    font-weight: 600;
}

.lang-dropdown a span:first-child {
    font-size: 1.125rem;
}

.hero-bg::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -20%;
    width: 800px;
    height: 800px;
    background: radial-gradient(circle, rgba(37, 99, 235, 0.08) 0%, transparent 70%);
    border-radius: 50%;
}

.hero-bg::after {
    content: '';
    position: absolute;
    bottom: -30%;
    left: -10%;
    width: 600px;
    height: 600px;
    background: radial-gradient(circle, rgba(6, 182, 212, 0.06) 0%, transparent 70%);
    border-radius: 50%;
}

.hero-particles {
    position: absolute;
    inset: 0;
    z-index: 1;
    overflow: hidden;
}

.particle {
    position: absolute;
    width: 4px;
    height: 4px;
    background: var(--primary);
    border-radius: 50%;
    opacity: 0.15;
    animation: float linear infinite;
}

@keyframes float {
    0% { transform: translateY(100vh) rotate(0deg); opacity: 0; }
    10% { opacity: 0.15; }
    90% { opacity: 0.15; }
    100% { transform: translateY(-100px) rotate(720deg); opacity: 0; }
}

.hero-content {
    position: relative;
    z-index: 2;
    text-align: center;
    padding-top: 40px;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 8px 20px;
    background: var(--primary-glow);
    border: 1px solid rgba(37, 99, 235, 0.15);
    border-radius: 50px;
    font-size: 0.8125rem;
    font-weight: 600;
    color: var(--primary);
    margin-bottom: 28px;
}

.hero-badge::before {
    content: '';
    width: 8px;
    height: 8px;
    background: var(--primary);
    border-radius: 50%;
    animation: pulse-dot 2s ease-in-out infinite;
}

@keyframes pulse-dot {
    0%, 100% { opacity: 1; transform: scale(1); }
    50% { opacity: 0.5; transform: scale(1.5); }
}

.hero-title {
    font-size: clamp(2.5rem, 5vw, 4rem);
    font-weight: 900;
    color: var(--dark);
    line-height: 1.1;
    margin-bottom: 24px;
    letter-spacing: -0.03em;
}

.gradient-text {
    background: linear-gradient(135deg, var(--gradient-start), var(--gradient-end));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-subtitle {
    font-size: 1.1875rem;
    color: var(--gray-600);
    max-width: 680px;
    margin: 0 auto 40px;
    line-height: 1.7;
}

.hero-actions {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 16px;
    margin-bottom: 60px;
    flex-wrap: wrap;
}

.hero-stats {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 48px;
    padding-top: 40px;
    border-top: 1px solid var(--gray-200);
}

.stat {
    text-align: center;
}

.stat-number {
    font-size: 2.5rem;
    font-weight: 800;
    color: var(--dark);
    line-height: 1;
}

.stat-suffix {
    font-size: 2rem;
    font-weight: 700;
    background: linear-gradient(135deg, var(--gradient-start), var(--gradient-end));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.stat-label {
    display: block;
    font-size: 0.8125rem;
    color: var(--gray-500);
    margin-top: 6px;
    font-weight: 500;
}

.stat-divider {
    width: 1px;
    height: 48px;
    background: var(--gray-200);
}

.hero-scroll {
    position: absolute;
    bottom: 32px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 8px;
    font-size: 0.75rem;
    color: var(--gray-400);
    text-transform: uppercase;
    letter-spacing: 0.1em;
    z-index: 2;
}

.scroll-indicator {
    width: 24px;
    height: 38px;
    border: 2px solid var(--gray-300);
    border-radius: 12px;
    position: relative;
}

.scroll-indicator::before {
    content: '';
    position: absolute;
    top: 6px;
    left: 50%;
    transform: translateX(-50%);
    width: 4px;
    height: 8px;
    background: var(--primary);
    border-radius: 2px;
    animation: scroll-anim 2s ease-in-out infinite;
}

@keyframes scroll-anim {
    0%, 100% { top: 6px; opacity: 1; }
    50% { top: 18px; opacity: 0.3; }
}

/* ===================================
   Section Common Styles
   =================================== */
.section-header {
    text-align: center;
    margin-bottom: 64px;
}

.section-tag {
    display: inline-block;
    padding: 6px 16px;
    background: var(--primary-glow);
    color: var(--primary);
    font-size: 0.8125rem;
    font-weight: 600;
    border-radius: 50px;
    margin-bottom: 16px;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.section-title {
    font-size: clamp(2rem, 3.5vw, 2.75rem);
    font-weight: 800;
    color: var(--dark);
    line-height: 1.15;
    margin-bottom: 16px;
    letter-spacing: -0.02em;
}

.section-subtitle {
    font-size: 1.0625rem;
    color: var(--gray-500);
    max-width: 600px;
    margin: 0 auto;
}

/* ===================================
   Services Section
   =================================== */
.services {
    padding: 100px 0;
    background: var(--white);
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}

.service-card {
    padding: 36px;
    background: var(--white);
    border: 1px solid var(--gray-200);
    border-radius: var(--radius-lg);
    transition: var(--transition);
    position: relative;
    overflow: hidden;
}

.service-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: linear-gradient(90deg, var(--gradient-start), var(--gradient-end));
    opacity: 0;
    transition: var(--transition);
}

.service-card:hover {
    border-color: transparent;
    box-shadow: var(--shadow-xl);
    transform: translateY(-4px);
}

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

.service-icon {
    width: 56px;
    height: 56px;
    border-radius: var(--radius-md);
    margin-bottom: 20px;
    position: relative;
}

.ai-icon { background: linear-gradient(135deg, #7c3aed20, #7c3aed10); }
.ai-icon::after { content: '🧠'; font-size: 28px; position: absolute; inset: 0; display: flex; align-items: center; justify-content: center; }

.data-icon { background: linear-gradient(135deg, #2563eb20, #2563eb10); }
.data-icon::after { content: '📊'; font-size: 28px; position: absolute; inset: 0; display: flex; align-items: center; justify-content: center; }

.bi-icon { background: linear-gradient(135deg, #06b6d420, #06b6d410); }
.bi-icon::after { content: '📈'; font-size: 28px; position: absolute; inset: 0; display: flex; align-items: center; justify-content: center; }

.dw-icon { background: linear-gradient(135deg, #8b5cf620, #8b5cf610); }
.dw-icon::after { content: '🏗️'; font-size: 28px; position: absolute; inset: 0; display: flex; align-items: center; justify-content: center; }

.etl-icon { background: linear-gradient(135deg, #f59e0b20, #f59e0b10); }
.etl-icon::after { content: '🔄'; font-size: 28px; position: absolute; inset: 0; display: flex; align-items: center; justify-content: center; }

.consult-icon { background: linear-gradient(135deg, #10b98120, #10b98110); }
.consult-icon::after { content: '💡'; font-size: 28px; position: absolute; inset: 0; display: flex; align-items: center; justify-content: center; }

.service-card h3 {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--dark);
    margin-bottom: 12px;
}

.service-card p {
    font-size: 0.9375rem;
    color: var(--gray-600);
    line-height: 1.65;
    margin-bottom: 20px;
}

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

.service-features li {
    font-size: 0.875rem;
    color: var(--gray-600);
    padding-left: 20px;
    position: relative;
}

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

/* ===================================
   Industries Section
   =================================== */
.industries {
    padding: 100px 0;
    background: var(--gray-50);
}

.industries-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}

.industry-card {
    padding: 40px;
    background: var(--white);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
    transition: var(--transition);
}

.industry-card:hover {
    box-shadow: var(--shadow-xl);
    transform: translateY(-4px);
}

.industry-icon {
    width: 64px;
    height: 64px;
    border-radius: var(--radius-md);
    margin-bottom: 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 32px;
}

.finance-icon { background: linear-gradient(135deg, #2563eb15, #2563eb08); }
.gov-icon { background: linear-gradient(135deg, #7c3aed15, #7c3aed08); }
.enterprise-icon { background: linear-gradient(135deg, #06b6d415, #06b6d408); }

.industry-card h3 {
    font-size: 1.375rem;
    font-weight: 700;
    color: var(--dark);
    margin-bottom: 12px;
}

.industry-card > p {
    font-size: 0.9375rem;
    color: var(--gray-600);
    margin-bottom: 24px;
    line-height: 1.65;
}

.industry-list {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.industry-list li {
    font-size: 0.875rem;
    color: var(--gray-600);
    padding-left: 24px;
    position: relative;
}

.industry-list li::before {
    content: '';
    position: absolute;
    left: 0;
    top: 50%;
    transform: translateY(-50%);
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--gradient-start), var(--gradient-end));
}

/* ===================================
   Why Choose Us / About
   =================================== */
.why-us {
    padding: 100px 0;
    background: var(--white);
}

.why-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 80px;
    align-items: center;
}

.why-content .section-tag { margin-bottom: 16px; }
.why-content .section-title { text-align: left; margin-bottom: 20px; }
.why-content > p { font-size: 1.0625rem; color: var(--gray-600); line-height: 1.75; margin-bottom: 40px; }

.why-features {
    display: flex;
    flex-direction: column;
    gap: 28px;
}

.why-feature {
    display: flex;
    gap: 16px;
}

.why-icon {
    width: 40px;
    height: 40px;
    min-width: 40px;
    border-radius: 50%;
    background: var(--primary-glow);
    display: flex;
    align-items: center;
    justify-content: center;
}

.check-circle::after { content: '✓'; color: var(--primary); font-weight: 700; font-size: 18px; }

.why-feature h4 {
    font-size: 1rem;
    font-weight: 700;
    color: var(--dark);
    margin-bottom: 4px;
}

.why-feature p {
    font-size: 0.9375rem;
    color: var(--gray-600);
    line-height: 1.6;
}

.visual-card {
    background: var(--dark);
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-xl), var(--shadow-glow);
}

.visual-header {
    display: flex;
    gap: 8px;
    padding: 16px 20px;
    background: var(--dark-lighter);
}

.visual-dot {
    width: 12px;
    height: 12px;
    border-radius: 50%;
}

.red { background: #ff5f57; }
.yellow { background: #febc2e; }
.green { background: #28c840; }

.visual-code {
    padding: 24px;
    font-family: var(--font-mono);
    font-size: 0.8125rem;
    line-height: 1.8;
    color: var(--gray-300);
    overflow-x: auto;
}

.visual-code .code-keyword { color: #c678dd; }
.visual-code .code-class { color: #e5c07b; }
.visual-code .code-method { color: #61afef; }
.visual-code .code-string { color: #98c379; }
.visual-code .code-number { color: #d19a66; }
.visual-code .code-comment { color: #5c6370; font-style: italic; }

/* ===================================
   Process Section
   =================================== */
.process {
    padding: 100px 0;
    background: var(--gray-50);
}

.process-timeline {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
    position: relative;
}

.process-step {
    text-align: center;
    padding: 36px 24px;
    background: var(--white);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
    transition: var(--transition);
    position: relative;
}

.process-step:hover {
    box-shadow: var(--shadow-xl);
    transform: translateY(-4px);
}

.step-number {
    font-size: 2.5rem;
    font-weight: 900;
    background: linear-gradient(135deg, var(--gradient-start), var(--gradient-end));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 16px;
}

.step-content h3 {
    font-size: 1.125rem;
    font-weight: 700;
    color: var(--dark);
    margin-bottom: 10px;
}

.step-content p {
    font-size: 0.875rem;
    color: var(--gray-600);
    line-height: 1.65;
}

/* ===================================
   FAQ Section
   =================================== */
.faq {
    padding: 100px 0;
    background: var(--white);
}

.faq-grid {
    max-width: 900px;
    margin: 0 auto;
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.faq-item {
    border: 1px solid var(--gray-200);
    border-radius: var(--radius-md);
    overflow: hidden;
    transition: var(--transition);
}

.faq-item:hover {
    border-color: rgba(37, 99, 235, 0.2);
}

.faq-question {
    width: 100%;
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 20px 24px;
    font-size: 1rem;
    font-weight: 600;
    color: var(--dark);
    text-align: left;
    background: transparent;
    transition: var(--transition);
    gap: 16px;
}

.faq-question:hover {
    background: var(--gray-50);
}

.faq-question[aria-expanded="true"] {
    background: var(--primary-glow);
    color: var(--primary);
}

.faq-chevron {
    min-width: 20px;
    transition: transform 0.3s ease;
    flex-shrink: 0;
}

.faq-question[aria-expanded="true"] .faq-chevron {
    transform: rotate(180deg);
}

.faq-answer {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.4s ease, padding 0.3s ease;
}

.faq-question[aria-expanded="true"] + .faq-answer {
    max-height: 500px;
}

.faq-answer p {
    padding: 0 24px 20px;
    font-size: 0.9375rem;
    color: var(--gray-600);
    line-height: 1.7;
}

.faq-answer p strong {
    color: var(--dark);
}

/* ===================================
   Partners Section
   =================================== */
.partners {
    padding: 60px 0;
    background: var(--white);
    border-top: 1px solid var(--gray-100);
    border-bottom: 1px solid var(--gray-100);
}

.partners-label {
    text-align: center;
    font-size: 0.875rem;
    color: var(--gray-400);
    text-transform: uppercase;
    letter-spacing: 0.1em;
    font-weight: 600;
    margin-bottom: 32px;
}

.partners-logos {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    justify-content: center;
    gap: 16px;
}

.partner-tag {
    padding: 10px 24px;
    background: var(--gray-50);
    border: 1px solid var(--gray-200);
    border-radius: var(--radius-sm);
    font-size: 0.9375rem;
    font-weight: 600;
    color: var(--gray-600);
    transition: var(--transition);
}

.partner-tag:hover {
    background: var(--primary-glow);
    border-color: rgba(37, 99, 235, 0.2);
    color: var(--primary);
}

/* ===================================
   CTA Section
   =================================== */
.cta-section {
    padding: 100px 0;
    background: linear-gradient(135deg, var(--dark) 0%, var(--dark-lighter) 100%);
    position: relative;
    overflow: hidden;
}

.cta-section::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -20%;
    width: 600px;
    height: 600px;
    background: radial-gradient(circle, rgba(37, 99, 235, 0.15) 0%, transparent 70%);
    border-radius: 50%;
}

.cta-content {
    text-align: center;
    position: relative;
    z-index: 1;
}

.cta-content h2 {
    font-size: clamp(2rem, 3.5vw, 2.75rem);
    font-weight: 800;
    color: var(--white);
    margin-bottom: 16px;
    letter-spacing: -0.02em;
}

.cta-content p {
    font-size: 1.125rem;
    color: var(--gray-400);
    max-width: 560px;
    margin: 0 auto 36px;
}

/* ===================================
   Contact Section
   =================================== */
.contact {
    padding: 100px 0;
    background: var(--white);
}

.contact-grid {
    display: grid;
    grid-template-columns: 1fr 1.2fr;
    gap: 80px;
    align-items: start;
}

.contact-info .section-tag { margin-bottom: 16px; }
.contact-info .section-title { text-align: left; margin-bottom: 16px; }
.contact-info > p { font-size: 1.0625rem; color: var(--gray-600); line-height: 1.75; margin-bottom: 40px; }

.contact-details {
    display: flex;
    flex-direction: column;
    gap: 28px;
}

.contact-item {
    display: flex;
    gap: 16px;
    align-items: flex-start;
}

.contact-icon {
    width: 48px;
    height: 48px;
    min-width: 48px;
    border-radius: var(--radius-md);
    background: var(--primary-glow);
    display: flex;
    align-items: center;
    justify-content: center;
}

.email-icon::after { content: '✉️'; font-size: 20px; }
.phone-icon::after { content: '📞'; font-size: 20px; }
.location-icon::after { content: '📍'; font-size: 20px; }

.contact-item h4 {
    font-size: 0.9375rem;
    font-weight: 700;
    color: var(--dark);
    margin-bottom: 4px;
}

.contact-item a, .contact-item p {
    font-size: 0.9375rem;
    color: var(--gray-600);
}

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

/* Contact Form */
.contact-form-wrapper {
    background: var(--gray-50);
    border: 1px solid var(--gray-200);
    border-radius: var(--radius-lg);
    padding: 40px;
}

.contact-form { display: flex; flex-direction: column; gap: 20px; }

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
}

.form-group { display: flex; flex-direction: column; gap: 6px; }

.form-group label {
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--dark);
}

.form-group input,
.form-group select,
.form-group textarea {
    padding: 12px 16px;
    border: 1px solid var(--gray-300);
    border-radius: var(--radius-sm);
    font-size: 0.9375rem;
    color: var(--dark);
    background: var(--white);
    transition: var(--transition);
    outline: none;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    border-color: var(--primary);
    box-shadow: 0 0 0 3px var(--primary-glow);
}

.form-group input::placeholder,
.form-group textarea::placeholder {
    color: var(--gray-400);
}

.form-group textarea { resize: vertical; }

/* ===================================
   Footer
   =================================== */
.footer {
    background: var(--dark);
    padding: 64px 0 32px;
}

.footer-grid {
    display: grid;
    grid-template-columns: 1.5fr 1fr 1fr 1fr;
    gap: 48px;
    margin-bottom: 48px;
}

.footer-brand .logo { margin-bottom: 16px; }
.footer-brand p { font-size: 0.9375rem; color: var(--gray-400); line-height: 1.65; }

.footer-links h4 {
    font-size: 0.875rem;
    font-weight: 700;
    color: var(--white);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: 20px;
}

.footer-links ul { display: flex; flex-direction: column; gap: 12px; }

.footer-links a {
    font-size: 0.9375rem;
    color: var(--gray-400);
    transition: var(--transition);
}

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

.footer-bottom {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding-top: 32px;
    border-top: 1px solid rgba(255, 255, 255, 0.08);
}

.footer-bottom p { font-size: 0.875rem; color: var(--gray-500); }

.footer-social { display: flex; gap: 12px; }

.social-link {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.06);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.8125rem;
    font-weight: 700;
    color: var(--gray-400);
    transition: var(--transition);
}

.social-link:hover {
    background: var(--primary);
    color: var(--white);
}

/* ===================================
   Back to Top
   =================================== */
.back-to-top {
    position: fixed;
    bottom: 32px;
    right: 32px;
    width: 48px;
    height: 48px;
    border-radius: 50%;
    background: var(--primary);
    color: var(--white);
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: var(--shadow-lg);
    opacity: 0;
    visibility: hidden;
    transform: translateY(10px);
    transition: var(--transition);
    z-index: 999;
}

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

.back-to-top:hover {
    background: var(--primary-dark);
    transform: translateY(-2px);
}

/* ===================================
   Animations
   =================================== */
.fade-in {
    opacity: 0;
    transform: translateY(20px);
    transition: opacity 0.6s ease, transform 0.6s ease;
}

.fade-in.visible {
    opacity: 1;
    transform: translateY(0);
}

.fade-in-up {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.6s ease, transform 0.6s ease;
}

.fade-in-up.visible {
    opacity: 1;
    transform: translateY(0);
}

/* ===================================
   Responsive Design
   =================================== */
@media (max-width: 1024px) {
    .services-grid,
    .industries-grid { grid-template-columns: repeat(2, 1fr); }
    
    .process-timeline { grid-template-columns: repeat(2, 1fr); }
    
    .why-grid { gap: 48px; }
    
    .footer-grid { grid-template-columns: 1fr 1fr; gap: 36px; }
}

@media (max-width: 768px) {
    .nav-links { 
        display: none;
        position: fixed;
        top: 0;
        left: 0;
        right: 0;
        bottom: 0;
        background: var(--white);
        flex-direction: column;
        align-items: center;
        justify-content: center;
        gap: 24px;
        z-index: 1001;
        overflow: visible;
        padding-top: 120px;
        padding-bottom: 40px;
        min-height: 100vh;
    }
    
    .nav-links.active { display: flex; }
    
    .nav-toggle { display: flex; z-index: 1002; }
    
    .hero-title { font-size: 2.25rem; }
    
    .hero-stats { gap: 24px; flex-wrap: wrap; }
    
    .services-grid,
    .industries-grid { grid-template-columns: 1fr; }
    
    .process-timeline { grid-template-columns: 1fr; }
    
    .why-grid { grid-template-columns: 1fr; gap: 40px; }
    
    .contact-grid { grid-template-columns: 1fr; gap: 48px; }
    
    .form-row { grid-template-columns: 1fr; }
    
    .footer-grid { grid-template-columns: 1fr; gap: 32px; }
    
    .footer-bottom { flex-direction: column; gap: 16px; text-align: center; }
    
    .hero-actions { flex-direction: column; }
    
    .lang-dropdown {
        position: absolute;
        top: calc(100% + 8px);
        right: 0;
        left: auto;
        bottom: auto;
        min-width: 140px;
        padding: 6px 0;
        z-index: 1003;
    }
}

@media (max-width: 480px) {
    .container { padding: 0 16px; }
    
    .hero { padding: 100px 0 60px; }
    
    .hero-title { font-size: 1.875rem; }
    
    .section-title { font-size: 1.75rem; }
    
    .service-card, .industry-card { padding: 28px; }
    
    .contact-form-wrapper { padding: 24px; }
}
}

.footer-links ul { display: flex; flex-direction: column; gap: 12px; }

.footer-links a {
    font-size: 0.9375rem;
    color: var(--gray-400);
    transition: var(--transition);
}

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

.footer-bottom {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding-top: 32px;
    border-top: 1px solid rgba(255, 255, 255, 0.08);
}

.footer-bottom p { font-size: 0.875rem; color: var(--gray-500); }

.footer-social { display: flex; gap: 12px; }

.social-link {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.06);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.8125rem;
    font-weight: 700;
    color: var(--gray-400);
    transition: var(--transition);
}

.social-link:hover {
    background: var(--primary);
    color: var(--white);
}

/* ===================================
   Back to Top
   =================================== */
.back-to-top {
    position: fixed;
    bottom: 32px;
    right: 32px;
    width: 48px;
    height: 48px;
    border-radius: 50%;
    background: var(--primary);
    color: var(--white);
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: var(--shadow-lg);
    opacity: 0;
    visibility: hidden;
    transform: translateY(10px);
    transition: var(--transition);
    z-index: 999;
}

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

.back-to-top:hover {
    background: var(--primary-dark);
    transform: translateY(-2px);
}

/* ===================================
   Animations
   =================================== */
.fade-in {
    opacity: 0;
    transform: translateY(20px);
    transition: opacity 0.6s ease, transform 0.6s ease;
}

.fade-in.visible {
    opacity: 1;
    transform: translateY(0);
}

.fade-in-up {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.6s ease, transform 0.6s ease;
}

.fade-in-up.visible {
    opacity: 1;
    transform: translateY(0);
}

/* ===================================
   Responsive Design
   =================================== */
@media (max-width: 1024px) {
    .services-grid,
    .industries-grid { grid-template-columns: repeat(2, 1fr); }
    
    .process-timeline { grid-template-columns: repeat(2, 1fr); }
    
    .why-grid { gap: 48px; }
    
    .footer-grid { grid-template-columns: 1fr 1fr; gap: 36px; }
}