:root {
    --background-light: #ffffff;
    --background-muted: #f9f7f4;
    --text-dark: #3c3a36;
    --text-muted: #88847f;
    --accent-blue: #cfe8ff;
    --accent-yellow: #fff4cc;
    --accent-green: #d5f5e3;
    --accent-red: #ffd7d7;
    --border-light: #eceae7;
    --shadow-soft: 0 2px 6px rgba(0, 0, 0, 0.06);
    --radius: 16px;
}

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

body {
    font-family: 'Work Sans', sans-serif;
    background: var(--background-muted);
    color: var(--text-dark);
    line-height: 1.8;
    font-size: 17px;
}

/* Header */
.topbar {
    background: var(--background-light);
    box-shadow: var(--shadow-soft);
    padding: 16px 0;
    position: sticky;
    top: 0;
    z-index: 10;
}

.topbar nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

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

.logo img {
    height: 32px;
    width: auto;
}

.nav-buttons {
    display: flex;
    gap: 12px;
    align-items: center;
}

.btn {
    font-family: 'Work Sans', sans-serif;
    font-size: 15px;
    font-weight: 500;
    padding: 10px 20px;
    border-radius: 8px;
    text-decoration: none;
    transition: all 0.2s ease;
    cursor: pointer;
    display: inline-block;
}

.btn-secondary {
    background: transparent;
    color: var(--text-dark);
    border: none;
}

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

.btn-primary {
    background: var(--text-dark);
    color: var(--background-light);
    border: none;
}

.btn-primary:hover {
    background: #2a2825;
}

/* Breadcrumbs */
.breadcrumbs {
    background: var(--background-light);
    padding: 16px 0;
    border-bottom: 1px solid var(--border-light);
}

.breadcrumbs nav {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 14px;
}

.breadcrumbs a {
    color: var(--text-muted);
    text-decoration: none;
    transition: color 0.2s ease;
}

.breadcrumbs a:hover {
    color: var(--text-dark);
}

.breadcrumbs .separator {
    color: var(--text-muted);
    user-select: none;
}

.breadcrumbs .current {
    color: var(--text-dark);
    font-weight: 500;
}

/* Container */
.container {
    width: 100%;
    max-width: 960px;
    padding: 0 20px;
    margin: 0 auto;
}

/* Hero Section */
.hero {
    background: #E4EFF3;
    padding: 60px 0 48px;
    margin-bottom: 0;
    position: relative;
}

.hero-content {
    max-width: 720px;
    margin: 0 auto;
    position: relative;
}

h1 {
    font-family: 'Plus Jakarta Sans', sans-serif;
    font-size: 38px;
    font-weight: 600;
    color: var(--text-dark);
    margin-bottom: 0;
    line-height: 1.4;
}

/* Main Content */
.main-content {
    padding: 0 0 80px;
}

.content-section {
    background: var(--background-light);
    padding: 60px 0;
}

.content-section:nth-child(even) {
    background: var(--background-muted);
}

.prose {
    max-width: 720px;
    margin: 0 auto;
}

.prose p {
    font-size: 17px;
    color: var(--text-dark);
    line-height: 1.8;
    margin-bottom: 24px;
}

.prose p:last-child {
    margin-bottom: 0;
}

h2 {
    font-family: 'Plus Jakarta Sans', sans-serif;
    font-size: 28px;
    font-weight: 600;
    color: var(--text-dark);
    margin-bottom: 28px;
    line-height: 1.4;
}

.prose a {
    color: var(--text-dark);
    text-decoration: underline;
    text-decoration-color: var(--text-muted);
    text-underline-offset: 3px;
    transition: text-decoration-color 0.2s ease;
}

.prose a:hover {
    text-decoration-color: var(--text-dark);
}

.prose strong {
    font-weight: 600;
    color: var(--text-dark);
}

.image-placeholder {
    width: 100%;
    max-width: 400px;
    height: 300px;
    background: var(--background-muted);
    border-radius: var(--radius);
    margin: 40px auto;
    display: block;
    object-fit: cover;
}

.content-section:nth-child(even) .image-placeholder {
    background: var(--background-light);
}

/* Footer */
footer {
    background: var(--background-light);
    border-top: 1px solid var(--border-light);
    padding: 40px 0;
    text-align: center;
    color: var(--text-muted);
    font-size: 14px;
}

/* Responsive */
@media (max-width: 768px) {
    h1 {
        font-size: 32px;
    }

    h2 {
        font-size: 24px;
    }

    .hero {
        padding: 40px 0 32px;
    }

    .content-section {
        padding: 40px 0;
    }

    .prose p {
        font-size: 16px;
    }

    .nav-buttons {
        gap: 8px;
    }

    .btn {
        padding: 8px 16px;
        font-size: 14px;
    }

    .download-section {
        padding: 60px 0;
    }

    .btn-large {
        font-size: 16px;
        padding: 14px 36px;
    }
}

@media (max-width: 480px) {
    h1 {
        font-size: 28px;
    }

    body {
        font-size: 16px;
    }

    .logo img {
        height: 28px;
    }

    .btn-secondary {
        padding: 8px 12px;
    }
}

/* Smooth scroll */
html {
    scroll-behavior: smooth;
}

/* Download Section */
.download-section {
    background: #2b2b2b;
    padding: 80px 0;
    text-align: center;
    position: relative;
}

.download-section .container {
    position: relative;
    z-index: 1;
}

.download-section h2 {
    margin-bottom: 32px;
    color: var(--background-light);
}

.btn-large {
    font-family: 'Plus Jakarta Sans', sans-serif;
    font-size: 18px;
    font-weight: 600;
    padding: 16px 48px;
    border-radius: 12px;
    text-decoration: none;
    background: #0277B6;
    color: var(--background-light);
    display: inline-block;
    transition: all 0.3s ease;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.btn-large:hover {
    background: #015f99;
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(2, 119, 182, 0.3);
}