/* MacUp - Modern Apple-style Design */

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

:root {
    --primary-color: #007AFF;
    --secondary-color: #5856D6;
    --text-dark: #1d1d1f;
    --text-light: #86868b;
    --bg-light: #f5f5f7;
    --white: #ffffff;
    --shadow: 0 2px 10px rgba(0,0,0,0.1);
}

body {
    font-family: 'Noto Sans SC', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    font-size: 17px;
    line-height: 1.6;
    color: var(--text-dark);
    background-color: var(--white);
}

html {
    scroll-behavior: smooth;
}

h1, h2, h3, h4, h5, h6 {
    font-weight: 600;
    line-height: 1.2;
    margin-bottom: 1rem;
}

h1 { font-size: 56px; }
h2 { font-size: 40px; }
h3 { font-size: 28px; }

p { margin-bottom: 1rem; }

a {
    color: var(--primary-color);
    text-decoration: none;
    transition: all 0.3s ease;
}

a:hover {
    opacity: 0.8;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* Header */
.main-header {
    background-color: rgba(255,255,255,0.95);
    backdrop-filter: saturate(180%) blur(20px);
    box-shadow: 0 1px 0 rgba(0,0,0,0.1);
    position: sticky;
    top: 0;
    z-index: 1000;
}

.main-nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 0;
}

.logo img {
    height: 60px;
    width: auto;
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: 2rem;
    margin: 0;
    padding: 0;
}

.nav-menu a {
    color: var(--text-dark);
    font-size: 14px;
    font-weight: 400;
    padding: 0.5rem 0;
    position: relative;
}

.nav-menu a::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background-color: var(--primary-color);
    transition: width 0.3s;
}

.nav-menu a:hover::after,
.nav-menu a.active::after {
    width: 100%;
}

.nav-menu a:hover,
.nav-menu a.active {
    color: var(--primary-color);
}

/* Hero Section */
.hero {
    position: relative;
    min-height: 600px;
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--secondary-color) 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    overflow: hidden;
}

.hero-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: radial-gradient(circle at 30% 50%, rgba(255,255,255,0.1) 0%, transparent 50%);
}

.hero-content {
    position: relative;
    z-index: 2;
    color: var(--white);
    max-width: 800px;
    padding: 3rem 2rem;
}

.hero-content h1 {
    font-size: 64px;
    font-weight: 700;
    margin-bottom: 1rem;
    letter-spacing: -1px;
}

.hero-subtitle {
    font-size: 28px;
    font-weight: 300;
    margin-bottom: 1rem;
    opacity: 0.95;
}

.hero-description {
    font-size: 19px;
    margin-bottom: 2rem;
    opacity: 0.9;
}

.hero-buttons {
    display: flex;
    justify-content: center;
    gap: 1.5rem;
    flex-wrap: wrap;
}

.btn {
    display: inline-block;
    padding: 14px 30px;
    font-size: 17px;
    font-weight: 400;
    border-radius: 980px;
    transition: all 0.3s ease;
    cursor: pointer;
}

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

.btn-primary:hover {
    background-color: rgba(255,255,255,0.9);
    transform: scale(1.02);
}

.btn-secondary {
    background-color: transparent;
    color: var(--white);
    border: 2px solid var(--white);
}

.btn-secondary:hover {
    background-color: rgba(255,255,255,0.1);
    transform: scale(1.02);
}

/* Features Section */
.features-section {
    padding: 80px 0;
    background-color: var(--white);
}

.section-title {
    text-align: center;
    font-size: 48px;
    font-weight: 600;
    margin-bottom: 60px;
    color: var(--text-dark);
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 30px;
}

.feature-card {
    background: var(--white);
    border-radius: 18px;
    padding: 40px 30px;
    box-shadow: 0 4px 20px rgba(0,0,0,0.08);
    transition: all 0.3s ease;
    border: 1px solid rgba(0,0,0,0.05);
}

.feature-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 12px 40px rgba(0,0,0,0.12);
}

.feature-icon {
    font-size: 48px;
    margin-bottom: 20px;
}

.feature-card h3 {
    font-size: 24px;
    margin-bottom: 15px;
    color: var(--text-dark);
}

.feature-card p {
    color: var(--text-light);
    margin-bottom: 20px;
    line-height: 1.6;
}

.feature-link {
    color: var(--primary-color);
    font-weight: 500;
    display: inline-block;
}

.feature-link:hover {
    transform: translateX(5px);
}

/* About Section */
.about-section {
    padding: 80px 0;
    background-color: var(--bg-light);
}

.about-content {
    max-width: 800px;
    margin: 0 auto;
    text-align: center;
}

.about-content h2 {
    font-size: 48px;
    margin-bottom: 30px;
}

.about-content p {
    font-size: 19px;
    color: var(--text-light);
    margin-bottom: 20px;
    line-height: 1.8;
}

.stats {
    display: flex;
    justify-content: space-around;
    margin-top: 60px;
    gap: 40px;
    flex-wrap: wrap;
}

.stat-item {
    text-align: center;
}

.stat-number {
    font-size: 56px;
    font-weight: 700;
    color: var(--primary-color);
    margin-bottom: 10px;
}

.stat-label {
    font-size: 17px;
    color: var(--text-light);
}

/* Footer */
.main-footer {
    background-color: var(--bg-light);
    padding: 60px 0 0;
    border-top: 1px solid rgba(0,0,0,0.1);
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 40px;
    margin-bottom: 40px;
}

.footer-section h3 {
    font-size: 14px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-bottom: 20px;
    color: var(--text-dark);
}

.footer-section p {
    color: var(--text-light);
    font-size: 14px;
    line-height: 1.8;
}

.footer-links {
    list-style: none;
    padding: 0;
}

.footer-links li {
    margin-bottom: 10px;
}

.footer-links a {
    color: var(--text-light);
    font-size: 14px;
}

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

.footer-bottom {
    background-color: rgba(0,0,0,0.02);
    padding: 20px 0;
    text-align: center;
    border-top: 1px solid rgba(0,0,0,0.05);
}

.footer-bottom p {
    margin: 0;
    font-size: 12px;
    color: var(--text-light);
}

/* Page Header */
.page-header {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--secondary-color) 100%);
    color: var(--white);
    padding: 60px 0;
    text-align: center;
}

.page-header h1 {
    font-size: 56px;
    margin-bottom: 15px;
}

.page-header p {
    font-size: 21px;
    opacity: 0.9;
}

/* Content Grid */
.content-section {
    padding: 60px 0;
}

.content-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 30px;
}

.content-card {
    background: var(--white);
    border-radius: 12px;
    overflow: hidden;
    box-shadow: 0 2px 10px rgba(0,0,0,0.08);
    transition: all 0.3s ease;
}

.content-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 30px rgba(0,0,0,0.15);
}

.content-card-image {
    width: 100%;
    height: 200px;
    object-fit: cover;
    display: block;
}

.content-card-body {
    padding: 20px;
}

.content-card h3 {
    font-size: 20px;
    margin-bottom: 10px;
}

.content-card p {
    color: var(--text-light);
    font-size: 14px;
    margin-bottom: 15px;
}

.content-card-footer {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-top: 15px;
    border-top: 1px solid rgba(0,0,0,0.05);
}

.download-btn {
    background-color: var(--primary-color);
    color: var(--white);
    padding: 8px 20px;
    border-radius: 20px;
    font-size: 14px;
    font-weight: 500;
}

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

/* Responsive */
@media (max-width: 968px) {
    .hero-content h1 {
        font-size: 48px;
    }
    
    .hero-subtitle {
        font-size: 24px;
    }
    
    .section-title {
        font-size: 36px;
    }
    
    .nav-menu {
        flex-wrap: wrap;
        gap: 1rem;
        justify-content: center;
    }
}

@media (max-width: 768px) {
    .hero-content h1 {
        font-size: 36px;
    }
    
    .hero-subtitle {
        font-size: 20px;
    }
    
    .hero {
        min-height: 500px;
    }
    
    .nav-menu {
        display: none;
    }
    
    .features-grid {
        grid-template-columns: 1fr;
    }
    
    .stats {
        flex-direction: column;
    }
}

@media (max-width: 480px) {
    .hero-content h1 {
        font-size: 32px;
    }
    
    .section-title {
        font-size: 28px;
    }
}