@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800&display=swap');

:root {
    --primary: #1a1a2e;
    --secondary: #16213e;
    --accent: #0f3460;
    --highlight: #e94560;
    --light: #f8f9fa;
    --dark: #1a1a2e;
    --gray: #6c757d;
    --gray-light: #e9ecef;
    --white: #ffffff;
    --shadow-sm: 0 2px 4px rgba(0,0,0,0.05);
    --shadow-md: 0 4px 6px rgba(0,0,0,0.07);
    --shadow-lg: 0 10px 30px rgba(0,0,0,0.1);
    --shadow-xl: 0 20px 50px rgba(0,0,0,0.15);
    --radius-sm: 8px;
    --radius-md: 16px;
    --radius-lg: 24px;
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    line-height: 1.7;
    color: var(--dark);
    background: var(--white);
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* Header */
.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    padding: 24px 0;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    transition: var(--transition);
}

.header.scrolled {
    padding: 16px 0;
    box-shadow: var(--shadow-md);
}

.header-content {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 40px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    font-size: 22px;
    font-weight: 800;
    color: var(--dark);
    text-decoration: none;
    display: flex;
    align-items: center;
    gap: 10px;
    letter-spacing: -0.5px;
}

.logo-icon {
    width: 40px;
    height: 40px;
    background: linear-gradient(135deg, var(--primary) 0%, var(--accent) 100%);
    border-radius: var(--radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 20px;
    color: white;
}

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

.nav {
    display: flex;
    align-items: center;
    gap: 6px;
}

.nav a {
    color: var(--gray);
    text-decoration: none;
    padding: 10px 20px;
    font-size: 14px;
    font-weight: 500;
    border-radius: var(--radius-sm);
    transition: var(--transition);
}

.nav a:hover,
.nav a.active {
    color: var(--dark);
    background: var(--light);
}

/* Hero Section */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    padding: 140px 40px 100px;
    background: linear-gradient(135deg, #fafbfc 0%, #ffffff 100%);
    position: relative;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    right: 0;
    width: 50%;
    height: 100%;
    background: radial-gradient(ellipse at 80% 50%, rgba(233, 69, 96, 0.08) 0%, transparent 70%);
}

.hero-container {
    max-width: 1400px;
    margin: 0 auto;
    position: relative;
    z-index: 1;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 80px;
    align-items: center;
}

.hero-content {
    animation: slideUp 0.8s ease-out;
}

@keyframes slideUp {
    from {
        opacity: 0;
        transform: translateY(40px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.hero-label {
    display: inline-block;
    background: var(--light);
    color: var(--gray);
    padding: 8px 16px;
    font-size: 13px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 1px;
    border-radius: var(--radius-sm);
    margin-bottom: 24px;
}

.hero h1 {
    font-size: clamp(42px, 5vw, 56px);
    font-weight: 800;
    line-height: 1.1;
    margin-bottom: 24px;
    letter-spacing: -1px;
    color: var(--dark);
}

.hero h1 span {
    background: linear-gradient(135deg, var(--primary) 0%, var(--highlight) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-description {
    font-size: 18px;
    color: var(--gray);
    line-height: 1.8;
    margin-bottom: 40px;
    font-weight: 400;
    max-width: 500px;
}

.hero-actions {
    display: flex;
    gap: 16px;
    flex-wrap: wrap;
}

.btn {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    padding: 16px 32px;
    font-size: 15px;
    font-weight: 600;
    border-radius: var(--radius-md);
    text-decoration: none;
    transition: var(--transition);
    cursor: pointer;
    border: none;
}

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

.btn-primary:hover {
    background: var(--secondary);
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

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

.btn-secondary:hover {
    border-color: var(--dark);
    transform: translateY(-2px);
}

/* Hero Image */
.hero-image {
    position: relative;
    animation: fadeIn 1s ease-out 0.3s both;
}

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateX(40px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

.browser-preview {
    background: white;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-xl);
    overflow: hidden;
    border: 1px solid var(--gray-light);
}

.browser-toolbar {
    background: var(--light);
    padding: 12px 16px;
    display: flex;
    align-items: center;
    gap: 12px;
}

.browser-dots {
    display: flex;
    gap: 6px;
}

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

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

.browser-address {
    flex: 1;
    background: white;
    padding: 10px 16px;
    border-radius: var(--radius-sm);
    font-size: 13px;
    color: var(--gray);
    text-align: center;
}

.browser-content {
    padding: 80px 40px;
    text-align: center;
    background: linear-gradient(135deg, #fafbfc 0%, #f0f2f5 100%);
}

.browser-logo {
    font-size: 80px;
    margin-bottom: 16px;
}

.browser-title {
    font-size: 24px;
    font-weight: 700;
    color: var(--dark);
    margin-bottom: 8px;
}

.browser-subtitle {
    font-size: 14px;
    color: var(--gray);
}

/* Features Section */
.features {
    padding: 120px 40px;
    background: white;
}

.section-header {
    text-align: center;
    max-width: 600px;
    margin: 0 auto 80px;
}

.section-label {
    display: inline-block;
    background: linear-gradient(135deg, var(--primary) 0%, var(--highlight) 100%);
    color: white;
    padding: 8px 20px;
    font-size: 12px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 1px;
    border-radius: var(--radius-sm);
    margin-bottom: 24px;
}

.section-title {
    font-size: clamp(32px, 4vw, 44px);
    font-weight: 800;
    letter-spacing: -1px;
    margin-bottom: 20px;
    color: var(--dark);
}

.section-description {
    font-size: 17px;
    color: var(--gray);
    line-height: 1.8;
}

.features-grid {
    max-width: 1400px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 32px;
}

.feature-card {
    background: var(--light);
    border-radius: var(--radius-md);
    padding: 40px 32px;
    transition: var(--transition);
    border: 1px solid transparent;
}

.feature-card:hover {
    background: white;
    border-color: var(--gray-light);
    box-shadow: var(--shadow-lg);
    transform: translateY(-8px);
}

.feature-icon {
    width: 64px;
    height: 64px;
    background: linear-gradient(135deg, var(--primary) 0%, var(--accent) 100%);
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 28px;
    margin-bottom: 24px;
    color: white;
}

.feature-title {
    font-size: 20px;
    font-weight: 700;
    margin-bottom: 14px;
    color: var(--dark);
}

.feature-text {
    font-size: 15px;
    color: var(--gray);
    line-height: 1.8;
}

/* Platforms Section */
.platforms {
    padding: 120px 40px;
    background: var(--light);
}

.platforms-grid {
    max-width: 1200px;
    margin: 0 auto;
    display: flex;
    justify-content: center;
    gap: 24px;
    flex-wrap: wrap;
}

.platform-card {
    background: white;
    border-radius: var(--radius-md);
    padding: 36px 32px;
    text-align: center;
    transition: var(--transition);
    border: 2px solid var(--gray-light);
    min-width: 160px;
    cursor: pointer;
}

.platform-card:hover {
    border-color: var(--dark);
    transform: translateY(-6px);
    box-shadow: var(--shadow-md);
}

.platform-icon {
    font-size: 48px;
    margin-bottom: 16px;
    display: inline-block;
    transition: transform 0.3s ease;
}

.platform-card:hover .platform-icon {
    transform: scale(1.15);
}

.platform-name {
    font-size: 15px;
    font-weight: 600;
    color: var(--dark);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

/* FAQ Section */
.faq {
    padding: 120px 40px;
    background: white;
}

.faq-list {
    max-width: 800px;
    margin: 0 auto;
}

.faq-item {
    background: var(--light);
    border-radius: var(--radius-md);
    margin-bottom: 12px;
    overflow: hidden;
    transition: var(--transition);
}

.faq-item.active {
    background: white;
    box-shadow: var(--shadow-md);
}

.faq-question {
    padding: 20px 28px;
    cursor: pointer;
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-weight: 600;
    font-size: 16px;
    color: var(--dark);
    transition: var(--transition);
}

.faq-question:hover {
    color: var(--highlight);
}

.faq-toggle {
    width: 32px;
    height: 32px;
    background: var(--dark);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 18px;
    color: white;
    transition: var(--transition);
    flex-shrink: 0;
    margin-left: 20px;
}

.faq-item.active .faq-toggle {
    background: var(--highlight);
    transform: rotate(45deg);
}

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

.faq-answer p {
    padding: 0 28px 20px;
    color: var(--gray);
    line-height: 1.8;
    font-size: 15px;
}

/* Footer */
.footer {
    background: var(--dark);
    color: white;
    padding: 80px 40px;
}

.footer-content {
    max-width: 1400px;
    margin: 0 auto;
    text-align: center;
}

.footer p {
    font-size: 14px;
    color: rgba(255, 255, 255, 0.7);
    margin: 10px 0;
}

.footer a {
    color: white;
    text-decoration: none;
}

/* Responsive */
@media (max-width: 1024px) {
    .hero-container {
        grid-template-columns: 1fr;
        text-align: center;
    }

    .hero-description {
        margin: 0 auto 40px;
    }

    .hero-actions {
        justify-content: center;
    }

    .features-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    .header-content {
        padding: 0 20px;
    }

    .nav {
        display: none;
    }

    .hero {
        padding: 120px 20px 80px;
    }

    .features-grid {
        grid-template-columns: 1fr;
    }

    .platforms-grid {
        gap: 16px;
    }

    .platform-card {
        min-width: 140px;
        padding: 28px 20px;
    }

    .features,
    .platforms,
    .faq {
        padding: 80px 20px;
    }

    .btn {
        width: 100%;
        justify-content: center;
    }

    .hero-actions {
        flex-direction: column;
    }
}

@media (max-width: 480px) {
    .hero h1 {
        font-size: 36px;
    }

    .platforms-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}