:root {
    /* Main Colors */
    --primary-1: #0C6FF9;
    --primary-2: #6DA9FB;
    --primary-shade-02: #71AAF7;
    --primary-shade-03: #D8E8FD;
    --accent: #E2F200;
    
    /* Text Colors */
    --text-color: #060619;
    --deactive-text: #68637D;
    
    /* Backgrounds */
    --background: #F2F4F7;
    --white: #FFFFFF;
    --black: #000000;
    
    /* Semantic */
    --success: #34C759;
    --error: #FF383C;
    --warning: #DAA000;
    
    /* Layout */
    --max-width: 1200px;
    --header-height: 80px;
    --border-radius: 16px;
    --line-color: #E0E0E0;
}

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

body {
    font-family: 'Segoe UI', system-ui, -apple-system, sans-serif;
    background-color: var(--background);
    color: var(--text-color);
    line-height: 1.6;
}

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

a {
    text-decoration: none;
    color: inherit;
    transition: all 0.3s ease;
}

ul {
    list-style: none;
}

.container {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 0 20px;
}

/* Header */
header {
    background-color: var(--white);
    height: var(--header-height);
    position: sticky;
    top: 0;
    z-index: 1000;
    box-shadow: 0 2px 10px rgba(0,0,0,0.05);
    display: flex;
    align-items: center;
}

.navbar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    width: 100%;
}

.logo {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 1.2rem;
    font-weight: 800;
    color: var(--primary-1);
}

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

.nav-links {
    display: flex;
    gap: 30px;
    align-items: center;
}

.nav-links a:hover {
    color: var(--primary-1);
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 12px 24px;
    border-radius: 50px;
    font-weight: 600;
    cursor: pointer;
    transition: transform 0.2s, box-shadow 0.2s;
    gap: 10px;
}

.btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(12, 111, 249, 0.2);
}

.btn-primary {
    background-color: var(--primary-1);
    color: var(--white);
}

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

.btn-outline {
    border: 2px solid var(--primary-1);
    color: var(--primary-1);
}

/* Hero Section */
.hero {
    padding: 80px 0;
    background: linear-gradient(135deg, var(--primary-shade-03) 0%, var(--white) 100%);
    overflow: hidden;
}

.hero-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 40px;
    align-items: center;
}

.hero-text h1 {
    font-size: 3.5rem;
    margin-bottom: 20px;
    color: var(--primary-1);
}

.hero-text p {
    font-size: 1.2rem;
    color: var(--deactive-text);
    margin-bottom: 30px;
}

.hero-image {
    position: relative;
    text-align: center;
}

.hero-image img {
    max-width: 100%;
    height: auto;
    border-radius: 20px;
    box-shadow: 0 20px 40px rgba(0,0,0,0.1);
    transform: rotate(-5deg);
    transition: transform 0.5s ease;
}

.hero-image img:hover {
    transform: rotate(0deg) scale(1.02);
}

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

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

.section-title h2 {
    font-size: 2.5rem;
    margin-bottom: 15px;
}

.section-title p {
    color: var(--deactive-text);
    max-width: 600px;
    margin: 0 auto;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
}

.feature-card {
    background-color: var(--background);
    padding: 30px;
    border-radius: var(--border-radius);
    transition: transform 0.3s ease;
}

.feature-card:hover {
    transform: translateY(-5px);
    background-color: var(--primary-shade-03);
}

.feature-icon {
    font-size: 2.5rem;
    margin-bottom: 20px;
    display: inline-block;
}

.feature-card h3 {
    margin-bottom: 10px;
    color: var(--primary-1);
}

.feature-card p {
    color: var(--deactive-text);
}

/* Screenshots Section */
.screenshots {
    padding: 80px 0;
    background-color: var(--background);
    overflow: hidden;
}

.screenshots-scroll {
    display: flex;
    gap: 20px;
    overflow-x: auto;
    padding: 20px 0 40px 0;
    scroll-snap-type: x mandatory;
    -webkit-overflow-scrolling: touch;
}

.screenshot-item {
    flex: 0 0 280px;
    scroll-snap-align: center;
}

.screenshot-item img {
    width: 100%;
    border-radius: 16px;
    box-shadow: 0 10px 20px rgba(0,0,0,0.1);
    transition: transform 0.3s;
}

.screenshot-item img:hover {
    transform: scale(1.05);
}

/* Why Choose Us */
.why-choose {
    padding: 80px 0;
    background-color: var(--white);
}

.why-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 30px;
}

.why-item {
    text-align: center;
    padding: 20px;
}

.why-number {
    font-size: 3rem;
    font-weight: 800;
    color: var(--primary-shade-02);
    opacity: 0.3;
    margin-bottom: -20px;
    display: block;
}

.why-item h3 {
    margin-bottom: 10px;
    position: relative;
}

/* Privacy Page Specific */
.privacy-content {
    background-color: var(--white);
    padding: 60px;
    border-radius: var(--border-radius);
    margin: 40px auto;
    box-shadow: 0 5px 15px rgba(0,0,0,0.05);
}

.privacy-content h1 {
    margin-bottom: 40px;
    color: var(--primary-1);
    border-bottom: 2px solid var(--primary-shade-03);
    padding-bottom: 20px;
}

.privacy-content h2 {
    margin-top: 30px;
    margin-bottom: 15px;
    font-size: 1.5rem;
}

.privacy-content p, .privacy-content ul {
    margin-bottom: 20px;
    color: var(--deactive-text);
}

.privacy-content ul {
    padding-left: 20px;
    list-style: disc;
}

/* Footer */
footer {
    background-color: var(--text-color);
    color: var(--white);
    padding: 60px 0 20px;
}

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

.footer-col h4 {
    color: var(--white);
    margin-bottom: 20px;
}

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

.footer-col ul li a {
    color: var(--deactive-text);
}

.footer-col ul li a:hover {
    color: var(--primary-2);
}

.footer-bottom {
    border-top: 1px solid rgba(255,255,255,0.1);
    padding-top: 20px;
    text-align: center;
    color: var(--deactive-text);
    font-size: 0.9rem;
}

/* Segmented Control Language Switcher */
.language-switch-wrapper {
    display: flex;
    justify-content: flex-end;
    margin-bottom: 30px;
    padding-bottom: 20px;
    border-bottom: 1px solid var(--line-color);
}

.segmented-control {
    position: relative;
    display: inline-flex;
    background-color: var(--deactive-cards);
    border-radius: 30px;
    padding: 4px;
}

.segmented-control input {
    display: none;
}

.segmented-control label {
    position: relative;
    z-index: 2;
    padding: 8px 0;
    font-weight: 600;
    font-size: 0.9rem;
    color: var(--deactive-text);
    cursor: pointer;
    transition: color 0.3s ease;
    width: 90px;
    text-align: center;
    user-select: none;
}

.segmented-control input:checked + label {
    color: var(--primary-1);
}

.segmented-control .selection-indicator {
    position: absolute;
    top: 4px;
    bottom: 4px;
    left: 4px;
    width: 90px;
    background-color: var(--white);
    border-radius: 26px;
    transition: transform 0.3s cubic-bezier(0.4, 0.0, 0.2, 1);
    z-index: 1;
    box-shadow: 0 2px 8px rgba(0,0,0,0.1);
}

/* Move indicator when English is checked */
.segmented-control input[value="en"]:checked ~ .selection-indicator {
    transform: translateX(90px);
}

/* Responsive */
@media (max-width: 768px) {
    .hero-content {
        grid-template-columns: 1fr;
        text-align: center;
    }
    
    .hero-text h1 {
        font-size: 2.5rem;
    }
    
    .nav-links {
        display: none; /* Simple hide for mobile, in real app would need hamburger */
    }
    
    .privacy-content {
        padding: 30px;
    }
}