:root {
    --primary: #ff6b35;
    --primary-dark: #e55a2b;
    --accent: #f7931e;
    --secondary: #764ba2;
    --secondary-light: #667eea;
    --text: #333;
    --muted: #666;
    --background: #fff;
    --surface: #fff;
    --surface-alt: #f8f9fa;
    --border: #e9ecef;
    --shadow-soft: 0 5px 20px rgba(0, 0, 0, 0.1);
    --shadow-strong: 0 10px 30px rgba(0, 0, 0, 0.12);
    --radius-lg: 20px;
    --radius-md: 15px;
    --radius-sm: 12px;
}

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

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

main {
    padding: 60px 0;
}

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

a {
    color: inherit;
}

/* Header */
header {
    background: var(--surface);
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
    position: sticky;
    top: 0;
    z-index: 1000;
}

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

.logo {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    text-decoration: none;
}

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

.logo-text {
    font-size: 1.8rem;
    font-weight: 700;
    color: var(--primary);
}

.nav-links {
    display: flex;
    list-style: none;
    gap: 2rem;
}

.nav-links a {
    text-decoration: none;
    color: var(--text);
    font-weight: 500;
    transition: color 0.3s;
}

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

.download-btn,
.button-primary {
    background: linear-gradient(135deg, var(--primary), var(--accent));
    color: white;
    padding: 0.75rem 1.5rem;
    border: none;
    border-radius: 25px;
    font-weight: 600;
    text-decoration: none;
    transition: transform 0.3s, box-shadow 0.3s;
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    cursor: pointer;
}

.download-btn:hover,
.button-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 25px rgba(255, 107, 53, 0.25);
}

.button-ghost {
    background: rgba(255, 255, 255, 0.2);
    border: 2px solid rgba(255, 255, 255, 0.3);
    color: white;
    padding: 1rem 2rem;
    border-radius: 25px;
    text-decoration: none;
    font-weight: 600;
    transition: all 0.3s;
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    cursor: pointer;
}

.hero-btn {
    background: rgba(255, 255, 255, 0.15);
    color: white;
    padding: 1rem 2rem;
    border: 2px solid rgba(255, 255, 255, 0.25);
    border-radius: 25px;
    text-decoration: none;
    font-weight: 700;
    transition: all 0.3s;
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    cursor: pointer;
}

.hero-btn:hover {
    background: rgba(255, 255, 255, 0.28);
    transform: translateY(-2px);
}

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

.nav-back {
    color: var(--muted);
    text-decoration: none;
    font-weight: 600;
    transition: color 0.3s;
    cursor: pointer;
}

.nav-back:hover {
    color: var(--primary);
}

.button-ghost:hover {
    background: rgba(255, 255, 255, 0.3);
    transform: translateY(-2px);
}

.app-btn {
    background: rgba(255, 255, 255, 0.1);
    border: 2px solid rgba(255, 255, 255, 0.3);
    color: white;
    padding: 1rem 2rem;
    border-radius: 12px;
    text-decoration: none;
    font-weight: 600;
    transition: all 0.3s;
    backdrop-filter: blur(10px);
    display: inline-flex;
    gap: 0.5rem;
    justify-content: center;
    align-items: center;
    cursor: pointer;
}

.app-btn:hover {
    background: rgba(255, 255, 255, 0.2);
    border-color: rgba(255, 255, 255, 0.5);
    transform: translateY(-3px);
}

.nav-links a:focus-visible,
.download-btn:focus-visible,
.app-btn:focus-visible,
.button-primary:focus-visible,
.button-ghost:focus-visible,
.faq-category:focus-visible,
.category-tag:focus-visible,
.contact-btn:focus-visible,
.help-link:focus-visible {
    outline: 3px solid rgba(255, 107, 53, 0.35);
    outline-offset: 3px;
}

/* Hero */
.hero {
    background: linear-gradient(135deg, var(--secondary-light) 0%, var(--secondary) 100%);
    color: white;
    padding: 80px 0 60px;
    text-align: center;
}

.hero h1 {
    font-size: clamp(2.5rem, 4vw, 3.5rem);
    font-weight: 700;
    margin-bottom: 1rem;
    line-height: 1.2;
}

.hero p {
    font-size: 1.2rem;
    opacity: 0.9;
    max-width: 680px;
    margin: 0 auto 1.5rem;
}

.hero .tagline {
    font-style: italic;
    margin-bottom: 2.5rem;
    font-size: 1.05rem;
    opacity: 0.85;
}

.hero-buttons,
.app-buttons {
    display: flex;
    gap: 1rem;
    justify-content: center;
    flex-wrap: wrap;
    margin-top: 1.5rem;
}

/* Sections */
.section-title {
    text-align: center;
    font-size: 2.3rem;
    font-weight: 700;
    margin-bottom: 1rem;
    color: var(--text);
}

.section-subtitle {
    text-align: center;
    font-size: 1.05rem;
    color: var(--muted);
    margin: 0 auto 2.5rem;
    max-width: 720px;
}

.section-muted {
    color: var(--muted);
}

.features,
.quick-help,
.faq,
.features-highlight,
.blog-section,
.download,
.legal-content,
.categories,
.featured-section {
    padding: 60px 0;
}

.features,
.blog-section,
.faq,
.legal-content,
.featured-section {
    background: var(--surface);
}

.features:nth-of-type(even),
.quick-help,
.features-highlight,
.categories,
.blog-section:nth-of-type(even) {
    background: var(--surface-alt);
}

/* Cards */
.card,
.feature-card,
.download-card,
.help-card,
.faq-item,
.feature-item,
.blog-card,
.legal-card,
.blog-post-card,
.step-visual,
.featured-post {
    background: var(--surface);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-soft);
}

.feature-card,
.download-card,
.help-card,
.feature-item,
.legal-card,
.blog-card,
.faq-item,
.featured-post {
    padding: 2rem;
    transition: transform 0.3s, box-shadow 0.3s;
}

.feature-card:hover,
.help-card:hover,
.blog-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-strong);
}

.feature-icon,
.help-icon {
    font-size: 3rem;
    margin-bottom: 1rem;
}

.feature-card h3,
.help-card h3,
.download-card h3,
.feature-item h3,
.blog-card h3,
.legal-card h2,
.legal-card h3 {
    font-size: 1.4rem;
    margin-bottom: 0.75rem;
    color: var(--text);
}

.feature-card p,
.help-card p,
.download-card p,
.blog-card p,
.feature-item p,
.legal-card p {
    color: var(--muted);
    line-height: 1.7;
}

.card-grid,
.features-grid,
.help-grid,
.blog-grid,
.download-grid,
.contact-options,
.faq-grid,
.features-highlight .features-grid,
.legal-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 1.75rem;
    margin-top: 2rem;
}

/* Blog styles */
.categories {
    background: var(--surface-alt);
}

.category-tags,
.faq-categories {
    display: flex;
    justify-content: center;
    gap: 0.75rem;
    flex-wrap: wrap;
}

.category-tag,
.faq-category {
    background: var(--surface);
    color: #666;
    padding: 0.6rem 1.4rem;
    border-radius: 25px;
    text-decoration: none;
    font-weight: 600;
    border: 2px solid var(--border);
    transition: all 0.3s;
    cursor: pointer;
}

.category-tag:hover,
.category-tag.active,
.faq-category.active,
.faq-category:hover {
    background: var(--primary);
    color: white;
    border-color: var(--primary);
}

.featured-post {
    background: linear-gradient(135deg, #f8f9fa 0%, #e9ecef 100%);
    border-radius: var(--radius-lg);
    overflow: hidden;
    display: grid;
    grid-template-columns: 1fr 1fr;
    align-items: stretch;
    padding: 0;
}

.featured-content {
    padding: 3rem;
}

.featured-badge {
    background: var(--primary);
    color: white;
    padding: 0.5rem 1rem;
    border-radius: 20px;
    font-size: 0.85rem;
    font-weight: 700;
    display: inline-block;
    margin-bottom: 1rem;
}

.featured-content h2 {
    font-size: 2.1rem;
    margin-bottom: 1rem;
    color: var(--text);
}

.featured-content p {
    font-size: 1.1rem;
    color: var(--muted);
    margin-bottom: 1.5rem;
    line-height: 1.6;
}

.read-more,
.help-link {
    color: var(--primary);
    text-decoration: none;
    font-weight: 700;
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    cursor: pointer;
}

.read-more:hover,
.help-link:hover {
    text-decoration: underline;
}

.featured-image {
    background: linear-gradient(135deg, var(--secondary-light), var(--secondary));
    color: white;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 3rem;
}

.blog-grid {
    margin-top: 2.5rem;
}

.blog-card {
    display: flex;
    gap: 1.25rem;
    text-decoration: none;
    color: inherit;
    border: 1px solid rgba(0, 0, 0, 0.03);
    transition: transform 0.3s, box-shadow 0.3s;
}

.blog-image {
    font-size: 2.2rem;
    width: 80px;
    height: 80px;
    border-radius: 16px;
    background: linear-gradient(135deg, #fff2e9, #ffe8dc);
    display: flex;
    align-items: center;
    justify-content: center;
}

.blog-content h3 {
    font-size: 1.35rem;
    margin-bottom: 0.5rem;
}

.blog-category {
    display: inline-block;
    background: rgba(255, 107, 53, 0.12);
    color: var(--primary);
    padding: 0.35rem 0.9rem;
    border-radius: 999px;
    font-weight: 700;
    font-size: 0.85rem;
    margin-bottom: 0.75rem;
}

.blog-excerpt {
    color: var(--muted);
    margin-bottom: 1rem;
}

.blog-meta {
    display: flex;
    justify-content: space-between;
    align-items: center;
    color: #777;
    font-size: 0.95rem;
}

.read-time {
    display: inline-flex;
    align-items: center;
    gap: 0.35rem;
}

.newsletter {
    padding: 60px 0;
    background: linear-gradient(135deg, var(--secondary-light) 0%, var(--secondary) 100%);
    color: white;
    text-align: center;
}

.newsletter h2 {
    font-size: 2rem;
    margin-bottom: 1rem;
}

.newsletter p {
    max-width: 600px;
    margin: 0 auto 1.5rem;
    opacity: 0.95;
}

.newsletter-form {
    display: flex;
    gap: 1rem;
    justify-content: center;
    flex-wrap: wrap;
}

.newsletter input[type="email"] {
    padding: 0.85rem 1rem;
    border-radius: 10px;
    border: none;
    min-width: 260px;
}

.newsletter button {
    background: white;
    color: var(--primary);
    border: none;
    padding: 0.85rem 1.5rem;
    border-radius: 10px;
    font-weight: 700;
    cursor: pointer;
    transition: transform 0.2s;
}

.newsletter button:hover {
    transform: translateY(-2px);
}

/* Support & FAQ */
.search-box {
    max-width: 600px;
    margin: 0 auto 3rem;
    position: relative;
}

.search-input {
    width: 100%;
    padding: 1rem 1rem 1rem 3rem;
    font-size: 1.05rem;
    border: 2px solid var(--border);
    border-radius: 25px;
    background: white;
    transition: border-color 0.3s;
}

.search-input:focus {
    outline: none;
    border-color: var(--primary);
}

.search-icon {
    position: absolute;
    left: 1rem;
    top: 50%;
    transform: translateY(-50%);
    color: #999;
    font-size: 1.1rem;
}

.faq-grid {
    grid-template-columns: repeat(auto-fit, minmax(420px, 1fr));
}

.faq-item {
    background: var(--surface-alt);
    border: 1px solid var(--border);
}

.faq-question {
    padding: 1.5rem;
    background: var(--surface);
    border: none;
    width: 100%;
    text-align: left;
    font-size: 1.1rem;
    font-weight: 700;
    color: var(--text);
    cursor: pointer;
    display: flex;
    justify-content: space-between;
    align-items: center;
    transition: background 0.3s;
}

.faq-question:hover {
    background: var(--surface-alt);
}

.faq-question.active {
    background: var(--primary);
    color: white;
}

.faq-toggle {
    font-size: 1.4rem;
    transition: transform 0.3s;
}

.faq-question.active .faq-toggle {
    transform: rotate(45deg);
}

.faq-answer {
    padding: 0 1.5rem;
    max-height: 0;
    overflow: hidden;
    transition: all 0.3s ease-out;
}

.faq-answer.active {
    padding: 1.5rem;
    max-height: 540px;
}

.faq-answer p,
.faq-answer ul {
    color: var(--muted);
    margin-bottom: 0.75rem;
}

.faq-answer ul {
    margin-left: 1.25rem;
}

.contact {
    background: linear-gradient(135deg, var(--secondary-light) 0%, var(--secondary) 100%);
    color: white;
    text-align: center;
    padding: 60px 0;
}

.contact h2 {
    font-size: 2.3rem;
    margin-bottom: 1rem;
}

.contact p {
    font-size: 1.1rem;
    margin-bottom: 1.75rem;
    opacity: 0.9;
}

.contact-card {
    background: rgba(255, 255, 255, 0.12);
    padding: 2rem;
    border-radius: var(--radius-md);
    backdrop-filter: blur(10px);
}

.contact-btn {
    background: rgba(255, 255, 255, 0.2);
    color: white;
    padding: 0.75rem 1.5rem;
    border: 2px solid rgba(255, 255, 255, 0.35);
    border-radius: 25px;
    text-decoration: none;
    font-weight: 700;
    transition: all 0.3s;
    display: inline-block;
    cursor: pointer;
}

.contact-btn:hover {
    background: rgba(255, 255, 255, 0.3);
    transform: translateY(-2px);
}

/* Home specific */
.features {
    background: var(--surface-alt);
}

.how-it-works .steps,
.steps {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: 1.5rem;
    margin-top: 2rem;
}

.step {
    text-align: center;
    position: relative;
}

.step-number {
    background: linear-gradient(135deg, var(--primary), var(--accent));
    color: white;
    width: 60px;
    height: 60px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: 1.4rem;
    margin: 0 auto 1rem;
    box-shadow: 0 10px 25px rgba(255, 107, 53, 0.3);
}

.step h3 {
    font-size: 1.25rem;
    margin-bottom: 0.75rem;
}

.download {
    background: #fff7f2;
}

.download-card {
    border: 1px solid rgba(0, 0, 0, 0.05);
}

.download-actions {
    display: flex;
    gap: 1rem;
    flex-wrap: wrap;
}

/* How it works detailed page */
.steps-section .steps-container {
    display: grid;
    grid-template-columns: 1fr;
    gap: 3rem;
    max-width: 820px;
    margin: 0 auto;
}

.steps-section .step {
    display: grid;
    grid-template-columns: auto 1fr;
    gap: 1.5rem;
    align-items: flex-start;
    text-align: left;
}

.steps-section .step-number {
    width: 80px;
    height: 80px;
    font-size: 2rem;
}

.steps-section .step:not(:last-child)::after {
    content: '';
    position: absolute;
    left: 40px;
    top: 85px;
    width: 2px;
    height: calc(100% + 2rem);
    background: linear-gradient(to bottom, var(--primary), var(--accent));
    opacity: 0.3;
}

.step-content h3 {
    font-size: 1.6rem;
}

.step-content p {
    font-size: 1.05rem;
    color: var(--muted);
    line-height: 1.7;
}

.step-visual {
    background: var(--surface-alt);
    border-left: 4px solid var(--primary);
    margin-top: 1rem;
}

.step-visual .visual-content {
    display: flex;
    align-items: center;
    gap: 1rem;
    font-size: 0.98rem;
    color: #555;
}

.visual-icon {
    font-size: 2rem;
}

.features-highlight {
    background: linear-gradient(135deg, var(--surface-alt) 0%, #e9ecef 100%);
}

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

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

.trust-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: 1.5rem;
    margin-top: 2rem;
}

.trust-card {
    background: white;
    padding: 1.5rem;
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-soft);
}

.trust-card h4 {
    margin-bottom: 0.5rem;
    color: var(--text);
}

.trust-card p {
    color: var(--muted);
}

/* Legal pages */
.legal-content {
    background: var(--surface);
}

.legal-grid {
    grid-template-columns: 1fr;
    gap: 1.5rem;
}

.legal-card {
    border: 1px solid var(--border);
    padding: 1.5rem;
}

.page-header {
    text-align: center;
    margin: 60px 0 30px;
}

.page-title {
    font-size: 2.2rem;
    margin-bottom: 0.75rem;
    color: var(--text);
}

.page-subtitle {
    color: var(--muted);
    margin-bottom: 0.75rem;
}

.last-updated {
    display: inline-block;
    background: rgba(255, 107, 53, 0.08);
    color: var(--primary);
    padding: 0.45rem 1rem;
    border-radius: 12px;
    font-weight: 700;
}

.toc {
    background: var(--surface-alt);
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    padding: 1.5rem;
    margin-bottom: 2rem;
}

.toc h3 {
    margin-bottom: 0.75rem;
}

.toc-list {
    margin-left: 1.25rem;
    color: var(--muted);
    line-height: 1.8;
}

.legal-card h1,
.legal-card h2,
.legal-card h3,
.legal-card h4 {
    color: var(--text);
    margin-bottom: 0.75rem;
}

.legal-card p,
.legal-card li {
    color: var(--muted);
    margin-bottom: 0.6rem;
}

.legal-card ul {
    margin-left: 1.25rem;
}

.content-section {
    margin-bottom: 2rem;
}

.important-notice,
.highlight-box,
.warning-box {
    border-radius: var(--radius-md);
    padding: 1rem 1.25rem;
    margin-bottom: 1rem;
    border: 1px solid var(--border);
}

.important-notice {
    background: rgba(255, 107, 53, 0.08);
    color: var(--primary);
}

.highlight-box {
    background: var(--surface-alt);
}

.warning-box {
    background: #fff6e9;
    border-color: #ffd6a4;
}

.subsection {
    margin-top: 1rem;
}

/* Footer */
footer {
    background: #333;
    color: white;
    padding: 40px 0 20px;
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 2rem;
    margin-bottom: 1.5rem;
}

.footer-section h4 {
    font-size: 1.15rem;
    margin-bottom: 0.9rem;
    color: var(--primary);
}

.footer-section a {
    color: #ccc;
    text-decoration: none;
    display: block;
    margin-bottom: 0.5rem;
    transition: color 0.3s;
}

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

.footer-bottom {
    border-top: 1px solid #555;
    padding-top: 16px;
    text-align: center;
    color: #999;
    font-size: 0.95rem;
}

/* Responsive */
@media (max-width: 900px) {
    nav {
        flex-direction: column;
        align-items: flex-start;
        gap: 0.75rem;
    }

    .nav-links {
        display: flex;
        flex-wrap: wrap;
        gap: 1rem;
        width: 100%;
    }

    .download-btn {
        align-self: flex-start;
    }

    .featured-post {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 768px) {
    .hero h1 {
        font-size: 2.35rem;
    }

    .hero p {
        font-size: 1.05rem;
    }

    .app-buttons {
        flex-direction: column;
        align-items: center;
    }

    .app-btn,
    .download-btn,
    .button-primary {
        width: 220px;
        justify-content: center;
    }

    .blog-card {
        flex-direction: column;
    }

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

    .steps-section .step {
        grid-template-columns: 1fr;
    }

    .steps-section .step:not(:last-child)::after {
        display: none;
    }
}