/* Professional Samsung-inspired Modern Minimalist Style */
:root {
    --primary-color: #000000;
    --secondary-color: #034ea2; /* Samsung Blue */
    --accent-blue: #0071e3;
    --text-color: #000000;
    --text-muted: #6e6e73;
    --bg-light: #f5f5f7;
    --white: #ffffff;
    --transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    --border-radius: 20px;
    --section-spacing: 120px;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    -webkit-font-smoothing: antialiased;
}

body {
    font-family: 'SamsungOne', 'SF Pro Display', 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
    line-height: 1.5;
    font-weight: 400;
    letter-spacing: -0.015em;
    color: var(--text-color);
    background-color: var(--white);
    overflow-x: hidden;
}

/* Typography */
h1, h2, h3, h4 {
    font-weight: 600;
    letter-spacing: -0.003em;
}

p {
    color: var(--text-muted);
}

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

/* Header - Enlarged Slightly */
header {
    position: fixed;
    top: 0;
    width: 100%;
    background: rgba(255, 255, 255, 0.85);
    backdrop-filter: saturate(180%) blur(20px);
    z-index: 1000;
    border-bottom: 1px solid rgba(0,0,0,0.08);
}

nav {
    max-width: 1200px; /* Increased from 1024 */
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0 30px;
    height: 64px; /* Increased from 48px */
}

.logo img {
    height: 28px; /* Increased from 20px */
}

.nav-links {
    display: flex;
    list-style: none;
}

.nav-links li {
    margin-left: 40px; /* Increased spacing */
}

.nav-links a {
    font-size: 15px; /* Increased from 12px */
    font-weight: 500;
    color: rgba(0,0,0,0.85);
}

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

/* Hero Section */
.hero {
    height: 75vh;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    background: #000;
    overflow: hidden;
}

.hero-content {
    max-width: 900px;
    padding: 0 30px;
}

.hero-content h1 {
    font-size: 64px; /* Increased from 56px */
    line-height: 1.1;
    color: #f5f5f7;
    margin-bottom: 20px;
    animation: reveal 1s ease-out;
}

.hero-content p {
    font-size: 26px; /* Increased from 24px */
    line-height: 1.2;
    color: #86868b;
}

/* Standard Section Layout */
section {
    padding: var(--section-spacing) 30px;
    max-width: 1200px; /* Increased from 1024 */
    margin: 0 auto;
}

.section-title {
    text-align: center;
    font-size: 44px; /* Increased from 40px */
    margin-bottom: 60px;
}

/* Grid & Cards */
.grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 30px;
}

.card {
    background: var(--bg-light);
    border-radius: var(--border-radius);
    padding: 50px 40px; /* Increased padding */
    text-align: center;
    transition: var(--transition);
}

.card:hover {
    transform: translateY(-10px);
    background: var(--white);
    box-shadow: 0 20px 40px rgba(0,0,0,0.06);
}

.card-icon {
    width: 60px;
    height: 60px;
    margin-bottom: 30px;
}

.card h3 {
    font-size: 24px; /* Increased from 21px */
    margin-bottom: 20px;
}

.card p {
    font-size: 16px; /* Increased from 14px */
    line-height: 1.5;
}

/* Footer - Enlarged Footer text */
footer {
    background: #f5f5f7;
    color: #1d1d1f;
    padding: 60px 30px;
    font-size: 14px;
}

.footer-inner {
    max-width: 1200px;
    margin: 0 auto;
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 40px;
    padding-bottom: 40px;
    border-bottom: 1px solid #d2d2d7;
}

.footer-column h4 {
    margin-bottom: 20px;
    font-size: 16px;
}

.footer-bottom {
    padding-top: 30px;
    display: flex;
    justify-content: space-between;
}

/* Mobile Responsiveness */
@media (max-width: 768px) {
    .hero-content h1 { font-size: 44px; }
    .hero-content p { font-size: 20px; }
    .section-title { font-size: 32px; }
    nav { height: auto; padding: 20px; flex-direction: column; }
    .nav-links { margin-top: 20px; flex-wrap: wrap; justify-content: center; }
    .nav-links li { margin: 10px 15px; }
}