:root {
    --primary: #ff6b00;
    --primary-hover: #e66000;
    --text-black: #1a1a1a;
    --text-gray: #666666;
    --bg-white: #ffffff;
    --bg-light: #f9fafb;
    --success: #10b981;
}

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

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    background-color: var(--bg-white);
    color: var(--text-black);
    line-height: 1.5;
    -webkit-font-smoothing: antialiased;
}

.container {
    max-width: 480px;
    margin: 0 auto;
    padding: 20px;
}

header {
    background: #fff;
    border-bottom: 1px solid #eee;
}

.header-inner {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    display: flex;
    align-items: center;
    gap: 8px;
}

.logo-icon {
    height: 70px;
    width: auto;
}

.lang-switcher {
    display: flex;
    gap: 10px;
    font-weight: 600;
    font-size: 14px;
    color: #999;
}

.lang-switcher span {
    cursor: pointer;
}

.lang-switcher span.active {
    color: var(--primary);
}

main {
    padding-top: 40px;
    text-align: center;
}

.badge {
    color: var(--text-gray);
    font-size: 18px;
    font-weight: 500;
    margin-bottom: 8px;
}

h1 {
    font-size: 32px;
    font-weight: 800;
    margin-bottom: 20px;
}

h1 span {
    color: var(--primary);
}

.description {
    color: var(--text-gray);
    font-size: 16px;
    margin-bottom: 30px;
    padding: 0 20px;
}

.benefits {
    display: inline-block;
    text-align: left;
    margin-bottom: 40px;
}

.benefit-item {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 12px;
    font-size: 16px;
    font-weight: 600;
}

.check-icon {
    width: 24px;
    height: 24px;
    background-color: var(--success);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
}

.check-icon svg {
    width: 14px;
    height: 14px;
    stroke: #fff;
    stroke-width: 3;
}

.cta-container {
    margin-bottom: 40px;
}

.btn-download {
    display: inline-block;
    background-color: var(--primary);
    color: #fff;
    text-decoration: none;
    padding: 18px 45px;
    border-radius: 18px;
    font-size: 20px;
    font-weight: 700;
    box-shadow: 0 10px 25px rgba(255, 107, 0, 0.3);
    transition: all 0.3s ease;
    border: none;
    cursor: pointer;
}

.btn-download:hover {
    background-color: var(--primary-hover);
    transform: translateY(-2px);
    box-shadow: 0 15px 30px rgba(255, 107, 0, 0.4);
}

.subtext {
    margin-top: 15px;
    font-size: 14px;
    color: var(--text-gray);
    max-width: 300px;
    margin-left: auto;
    margin-right: auto;
    line-height: 1.4;
}

.hero-image-container {
    margin-top: 20px;
}

.hero-image {
    width: 100%;
    max-width: 350px;
}

.chat-button {
    position: fixed;
    bottom: 20px;
    right: 20px;
    width: 56px;
    height: 56px;
    background-color: var(--primary);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 4px 12px rgba(0,0,0,0.15);
    cursor: pointer;
}

.chat-button svg {
    width: 28px;
    height: 28px;
    fill: #fff;
}

/* Animations */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.fade-in {
    opacity: 0;
}

.fade-in.visible {
    animation: fadeInUp 0.6s ease forwards;
}

/* Responsive */
@media (min-width: 768px) {
    .container {
        max-width: 800px;
    }
    .logo-icon {
        height: 100px;
    }
    header {
        padding: 10px 0;
    }
}

@media (max-width: 400px) {
    h1 {
        font-size: 28px;
    }
    .btn-download {
        padding: 16px 35px;
        font-size: 18px;
    }
}