:root {
    /* Color Palette - Big Tech Establishment Style */
    --bg-color: #ffffff;
    --text-primary: #000000;
    --text-secondary: #555555;
    --accent-color: #0066ff; /* Professional Blue for trust */
    --card-bg: #ffffff;
    --section-secondary: #f9f9fb;
    --border-color: #e5e7eb;
    --whatsapp-green: #25d366;
    
    /* Typography */
    --font-heading: 'Outfit', sans-serif;
    --font-body: 'Inter', sans-serif;
    
    /* Spacing */
    --section-padding: 120px 5%;
    --border-radius: 16px;
    --transition: all 0.5s cubic-bezier(0.16, 1, 0.3, 1);
}

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

body {
    background-color: var(--bg-color);
    color: var(--text-primary);
    font-family: var(--font-body);
    line-height: 1.6;
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
}

h1, h2, h3, h4 {
    font-family: var(--font-heading);
    font-weight: 700;
    letter-spacing: -0.02em;
}

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

ul {
    list-style: none;
}

img {
    max-width: 100%;
    display: block;
}

/* Scrollbar Customization */
::-webkit-scrollbar {
    width: 6px;
}
::-webkit-scrollbar-track {
    background: var(--bg-color);
}
::-webkit-scrollbar-thumb {
    background: #333;
    border-radius: 10px;
}

/* Section Helpers */
.section-secondary {
    background-color: var(--section-secondary);
    padding: var(--section-padding);
}

.stat-card {
    background: #ffffff;
    padding: 40px 30px;
    border-radius: var(--border-radius);
    border: 1px solid var(--border-color);
    text-align: center;
    transition: var(--transition);
}

.stat-card:hover {
    box-shadow: 0 15px 30px rgba(0, 0, 0, 0.05);
    border-color: var(--accent-color);
}

.stat-card h3 {
    font-size: 2.8rem;
    margin-bottom: 10px;
    color: var(--accent-color);
}

.stat-card p {
    font-size: 0.95rem;
    color: var(--text-secondary);
}

/* Section Header */
.section-tag {
    font-size: 0.85rem;
    text-transform: uppercase;
    letter-spacing: 0.15em;
    color: var(--accent-color);
    font-weight: 700;
    display: block;
    margin-bottom: 15px;
}

/* Buttons & Utilities */
.container {
    max-width: 1300px;
    margin: 0 auto;
    padding: 0 50px;
}

.nav-cta {
    padding: 10px 24px !important;
    font-size: 0.9rem !important;
    border-radius: 8px !important;
}

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 16px 32px;
    border-radius: 50px;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
    font-size: 1rem;
    border: none;
    gap: 10px;
}

.btn-primary {
    background-color: var(--text-primary);
    color: #ffffff;
}

.btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
    background-color: #222;
}

.btn-outline {
    background-color: transparent;
    border: 1px solid var(--border-color);
    color: var(--text-primary);
}

.btn-outline:hover {
    background-color: #f3f4f6;
    transform: translateY(-3px);
}

.btn-whatsapp {
    background-color: #25D366;
    color: white;
    border: none;
}

.btn-whatsapp:hover {
    background-color: #20bd5a;
    box-shadow: 0 10px 20px rgba(37, 211, 102, 0.15);
}

/* Animations */
.reveal {
    opacity: 0;
    transform: translateY(30px);
    transition: var(--transition);
}

.reveal.active {
    opacity: 1;
    transform: translateY(0);
}

/* Navbar */
nav {
    padding: 25px 5%;
    display: flex;
    justify-content: space-between;
    align-items: center;
    position: fixed;
    width: 100%;
    top: 0;
    z-index: 1000;
    background: rgba(255, 255, 255, 0.8);
    backdrop-filter: blur(15px);
    border-bottom: 1px solid var(--border-color);
}

.logo {
    font-size: 1.6rem;
    font-weight: 800;
    letter-spacing: -1px;
    color: #000;
}

.logo span {
    color: var(--accent-color);
}

.nav-links {
    display: flex;
    gap: 40px;
}

.nav-links a {
    font-size: 0.95rem;
    font-weight: 500;
    color: var(--text-secondary);
}

.nav-links a:hover {
    color: var(--text-primary);
}

/* Hero Section Polish */
.hero {
    min-height: 95vh;
    display: flex;
    align-items: center;
    padding: 180px 5% 120px;
    position: relative;
    overflow: hidden;
    background: radial-gradient(circle at 100% 0%, rgba(0, 102, 255, 0.04) 0%, rgba(255, 255, 255, 0) 50%),
                radial-gradient(circle at 0% 100%, rgba(0, 102, 255, 0.02) 0%, rgba(255, 255, 255, 0) 50%);
}

.hero-split {
    display: grid;
    grid-template-columns: 1.1fr 0.9fr;
    gap: 100px;
    align-items: center;
    width: 100%;
    max-width: 1300px;
    margin: 0 auto;
}

.hero-content h1 {
    font-size: clamp(3rem, 6vw, 4.8rem);
    line-height: 1.05;
    margin-bottom: 25px;
    color: #000;
    letter-spacing: -0.03em;
}

.hero-content p {
    font-size: 1.25rem;
    color: var(--text-secondary);
    max-width: 580px;
    margin-bottom: 45px;
    line-height: 1.6;
}

.hero-actions {
    display: flex;
    gap: 20px;
    align-items: center;
}

.hero-actions .btn {
    padding: 18px 40px;
    font-size: 1.1rem;
    border-radius: 12px;
}

.mockup-container {
    position: relative;
    width: 100%;
}

.hero-visual img {
    width: 100%;
    height: auto;
    border-radius: 24px;
    box-shadow: 0 40px 100px rgba(0,0,0,0.06);
    border: 1px solid rgba(0,0,0,0.02);
    animation: float 8s ease-in-out infinite;
}

/* Mobile Menu Toggle */
.menu-toggle {
    display: none;
    flex-direction: column;
    gap: 6px;
    cursor: pointer;
    z-index: 1001;
}

.menu-toggle span {
    width: 30px;
    height: 2px;
    background: var(--text-primary);
    transition: var(--transition);
}

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

.hero-visual img {
    animation: float 6s ease-in-out infinite;
}

@media (max-width: 992px) {
    .menu-toggle {
        display: flex;
    }

    .nav-cta {
        display: none !important;
    }

    .nav-links {
        position: fixed;
        top: 0;
        right: -100%;
        width: 100%;
        height: 100vh;
        background: var(--bg-color);
        flex-direction: column;
        justify-content: center;
        align-items: center;
        transition: 0.5s cubic-bezier(0.16, 1, 0.3, 1);
        gap: 30px;
    }

    .nav-links.active {
        right: 0;
    }

    .nav-links a {
        font-size: 1.5rem;
    }

    .hero-split {
        grid-template-columns: 1fr;
        text-align: center;
    }
    
    .hero-visual {
        order: -1;
        max-width: 80%;
        margin: 0 auto;
    }
}

/* Service Cards */
.service-card {
    background: var(--card-bg);
    padding: 60px 40px;
    border-radius: var(--border-radius);
    border: 1px solid var(--border-color);
    transition: var(--transition);
    position: relative;
    overflow: hidden;
    display: flex;
    flex-direction: column;
    gap: 25px;
    box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.02), 0 2px 4px -1px rgba(0, 0, 0, 0.01);
}

.service-card:hover {
    border-color: var(--accent-color);
    transform: translateY(-8px);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.06);
}

.service-card .icon {
    font-size: 2.8rem;
    color: var(--accent-color);
    margin-bottom: 5px;
}

.service-card h3 {
    font-size: 1.5rem;
}

.service-card p {
    color: var(--text-secondary);
    font-size: 0.95rem;
}

.service-card ul {
    margin-top: auto;
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.service-card ul li {
    font-size: 0.85rem;
    color: var(--text-secondary);
    display: flex;
    align-items: center;
    gap: 10px;
}

.service-card ul li i {
    font-size: 0.7rem;
    color: #444;
}

/* Case Study Cards */
.case-study-card {
    display: grid;
    grid-template-columns: 1fr 1fr;
    background: #ffffff;
    border-radius: 24px;
    overflow: hidden;
    border: 1px solid var(--border-color);
    box-shadow: 0 10px 30px rgba(0,0,0,0.03);
}

.case-study-card.reverse {
    direction: rtl;
}
.case-study-card.reverse .case-content {
    direction: ltr;
}

.case-image {
    min-height: 450px;
    background: #f9f9fb;
    background-size: cover;
    background-position: center;
    border-right: 1px solid var(--border-color);
}

.case-study-card.reverse .case-image {
    border-right: none;
    border-left: 1px solid var(--border-color);
}

#case-img-1 { background-image: linear-gradient(rgba(0,0,0,0.5), rgba(0,0,0,0.5)), url('https://images.unsplash.com/photo-1460925895917-afdab827c52f?auto=format&fit=crop&q=80&w=1000'); }
#case-img-2 { background-image: linear-gradient(rgba(0,0,0,0.5), rgba(0,0,0,0.5)), url('https://images.unsplash.com/photo-1551288049-bebda4e38f71?auto=format&fit=crop&q=80&w=1000'); }

.case-content {
    padding: 60px;
    display: flex;
    flex-direction: column;
    justify-content: center;
}

.case-content h3 {
    font-size: 2rem;
    margin-bottom: 20px;
}

.case-content p {
    color: var(--text-secondary);
    margin-bottom: 30px;
}

.result-stats {
    display: flex;
    gap: 40px;
}

.result-stats span {
    display: flex;
    flex-direction: column;
    font-size: 0.95rem;
    color: var(--text-secondary);
}

.result-stats span b {
    font-size: 2rem;
    color: var(--accent-color);
    letter-spacing: -0.02em;
}

/* Feature Items (Why Choose Us) */
.feature-item {
    border-left: 1px solid var(--border-color);
    padding-left: 25px;
}

.feature-item h4 {
    font-size: 1.2rem;
    margin-bottom: 15px;
}

.feature-item p {
    font-size: 0.9rem;
    color: var(--text-secondary);
}

/* Final Polish for Light Theme */
.cta-section {
    padding: 140px 5%;
    text-align: center;
    background: var(--text-primary);
    color: #ffffff;
    border-radius: 40px;
    margin: 0 20px;
}

.cta-section .btn-outline {
    border-color: rgba(255, 255, 255, 0.2);
    color: #ffffff;
}

.cta-section .btn-outline:hover {
    background: rgba(255, 255, 255, 0.1);
}

.footer {
    padding: var(--section-padding);
    background: #ffffff;
    border-top: 1px solid var(--border-color);
    margin-top: 50px;
}

.contact-form {
    display: grid;
    gap: 20px;
}

.contact-form input, .contact-form textarea {
    padding: 18px;
    background: #f9f9fb;
    border: 1px solid #e5e7eb;
    border-radius: 12px;
    color: #000;
    font-family: inherit;
    font-size: 1rem;
    transition: var(--transition);
}

.contact-form input:focus, .contact-form textarea:focus {
    outline: none;
    border-color: var(--accent-color);
    background: #ffffff;
    box-shadow: 0 0 0 4px rgba(0, 102, 255, 0.05);
}

@media (max-width: 992px) {
    .case-study-card {
        grid-template-columns: 1fr;
    }
    .case-study-card.reverse {
        direction: ltr;
    }
    .case-image {
        min-height: 250px;
    }
    .case-content {
        padding: 40px 20px;
    }
}