/* FinTools AI - Design System CSS */

/* ========================================
   CSS Reset & Root Variables
   ======================================== */

:root {
    --ink: #0a0f1c;
    --paper: #f8f7f4;
    --accent: #1a6b4a;
    --accent-light: #e8f5ee;
    --subtle: #6b7280;
    --border: #e2e0db;
    --highlight: #fbbf24;
    --card-bg: #ffffff;

    --font-heading: 'Space Grotesk', -apple-system, BlinkMacSystemFont, sans-serif;
    --font-body: 'DM Sans', -apple-system, BlinkMacSystemFont, sans-serif;

    --radius-sm: 6px;
    --radius-md: 12px;
    --radius-lg: 16px;

    --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.07);
    --shadow-lg: 0 10px 25px rgba(0, 0, 0, 0.1);

    --transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
}

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

html {
    scroll-behavior: smooth;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

body {
    font-family: var(--font-body);
    font-size: 16px;
    line-height: 1.6;
    color: var(--ink);
    background-color: var(--paper);
}

img {
    max-width: 100%;
    height: auto;
    display: block;
}

a {
    text-decoration: none;
    color: inherit;
    transition: var(--transition);
}

button {
    font-family: inherit;
    cursor: pointer;
    border: none;
    background: none;
}

ul, ol {
    list-style: none;
}

/* ========================================
   Navigation
   ======================================== */

nav {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: rgba(248, 247, 244, 0.9);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--border);
}

nav .nav-inner {
    max-width: 1200px;
    margin: 0 auto;
    padding: 1rem 2rem;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

nav .logo {
    font-family: var(--font-heading);
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--ink);
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

nav .logo .mark {
    color: var(--accent);
}

.nav-links {
    display: flex;
    align-items: center;
    gap: 2rem;
}

.nav-links a {
    font-weight: 500;
    color: var(--ink);
    transition: color 0.2s;
}

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

.nav-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    padding: 0.5rem;
}

.nav-toggle span {
    display: block;
    width: 24px;
    height: 2px;
    background: var(--ink);
    transition: var(--transition);
}

/* ========================================
   Hero Section
   ======================================== */

.hero {
    padding: 8rem 2rem 5rem;
    text-align: center;
    max-width: 900px;
    margin: 0 auto;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.5rem 1rem;
    background: var(--accent-light);
    color: var(--accent);
    border-radius: 100px;
    font-size: 0.875rem;
    font-weight: 600;
    margin-bottom: 1.5rem;
}

.hero h1 {
    font-family: var(--font-heading);
    font-size: 3.5rem;
    line-height: 1.1;
    font-weight: 700;
    margin-bottom: 1.5rem;
    letter-spacing: -0.02em;
}

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

.hero-sub {
    font-size: 1.25rem;
    color: var(--subtle);
    margin-bottom: 2.5rem;
    line-height: 1.6;
}

.hero-stats {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
    margin-top: 3rem;
    padding-top: 3rem;
    border-top: 1px solid var(--border);
}

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

.stat-item .stat-label {
    font-size: 0.875rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--subtle);
    margin-bottom: 0.5rem;
    font-weight: 600;
}

.stat-item .stat-value {
    font-family: var(--font-heading);
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--ink);
}

/* ========================================
   Featured Articles Section
   ======================================== */

.featured {
    padding: 5rem 2rem;
    max-width: 1200px;
    margin: 0 auto;
}

.featured-inner {
    margin-bottom: 3rem;
    text-align: center;
}

.featured h2 {
    font-family: var(--font-heading);
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 1rem;
    letter-spacing: -0.02em;
}

.featured-desc {
    font-size: 1.125rem;
    color: var(--subtle);
    max-width: 600px;
    margin: 0 auto;
}

.article-cards {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 2rem;
}

.article-card {
    background: var(--card-bg);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 2rem;
    transition: var(--transition);
}

.article-card:hover {
    border-color: var(--accent);
    box-shadow: var(--shadow-lg);
    transform: translateY(-2px);
}

.card-category {
    display: inline-block;
    padding: 0.25rem 0.75rem;
    background: var(--accent-light);
    color: var(--accent);
    border-radius: 100px;
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: 1rem;
}

.article-card h3 {
    font-family: var(--font-heading);
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: 1rem;
    line-height: 1.3;
}

.article-card p {
    color: var(--subtle);
    margin-bottom: 1.5rem;
    line-height: 1.6;
}

.card-link {
    color: var(--accent);
    font-weight: 600;
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
}

.card-link::after {
    content: '→';
    transition: var(--transition);
}

.article-card:hover .card-link::after {
    transform: translateX(4px);
}

/* ========================================
   Editorial Section
   ======================================== */

.editorial {
    padding: 5rem 2rem;
    max-width: 1200px;
    margin: 0 auto;
}

.editorial-grid {
    display: grid;
    grid-template-columns: 300px 1fr;
    gap: 4rem;
    align-items: start;
}

.editorial-sidebar h2 {
    font-family: var(--font-heading);
    font-size: 2rem;
    font-weight: 700;
    margin-bottom: 1rem;
}

.editorial-label {
    display: inline-block;
    font-size: 0.75rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--accent);
    margin-bottom: 0.5rem;
}

.editorial-sidebar p {
    color: var(--subtle);
    line-height: 1.6;
}

.content-types {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 1.5rem;
}

.content-card {
    background: var(--card-bg);
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    padding: 1.5rem;
    transition: var(--transition);
}

.content-card:hover {
    border-color: var(--accent);
    box-shadow: var(--shadow-md);
}

.content-card .icon {
    font-size: 2rem;
    margin-bottom: 1rem;
    display: block;
}

.content-card h3 {
    font-family: var(--font-heading);
    font-size: 1.125rem;
    font-weight: 700;
    margin-bottom: 0.5rem;
}

.content-card p {
    color: var(--subtle);
    font-size: 0.875rem;
    line-height: 1.5;
}

/* ========================================
   Comparison Table Section
   ======================================== */

.comparison-section {
    padding: 5rem 2rem;
    background: var(--ink);
    color: var(--paper);
}

.comparison-inner {
    max-width: 1200px;
    margin: 0 auto;
}

.comparison-inner h2 {
    font-family: var(--font-heading);
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 1rem;
    text-align: center;
}

.comparison-inner .section-desc {
    text-align: center;
    color: #9ca3af;
    font-size: 1.125rem;
    margin-bottom: 3rem;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

.table-scroll {
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
    margin-bottom: 2rem;
}

.preview-table {
    width: 100%;
    border-collapse: separate;
    border-spacing: 0;
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: var(--radius-md);
    overflow: hidden;
}

.preview-table thead {
    background: rgba(255, 255, 255, 0.05);
}

.preview-table th {
    padding: 1rem 1.5rem;
    text-align: left;
    font-family: var(--font-heading);
    font-weight: 700;
    font-size: 0.875rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: #9ca3af;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.preview-table td {
    padding: 1.25rem 1.5rem;
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
}

.preview-table tbody tr:last-child td {
    border-bottom: none;
}

.preview-table tbody tr:hover {
    background: rgba(255, 255, 255, 0.02);
}

.tool-name {
    font-weight: 700;
    font-size: 1.125rem;
    color: var(--paper);
}

.verdict-badge {
    display: inline-block;
    padding: 0.375rem 0.875rem;
    border-radius: 100px;
    font-size: 0.75rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.verdict-best {
    background: rgba(26, 107, 74, 0.2);
    color: #6ee7b7;
    border: 1px solid rgba(110, 231, 183, 0.3);
}

.verdict-good {
    background: rgba(251, 191, 36, 0.2);
    color: #fcd34d;
    border: 1px solid rgba(252, 211, 77, 0.3);
}

.verdict-niche {
    background: rgba(156, 163, 175, 0.2);
    color: #d1d5db;
    border: 1px solid rgba(209, 213, 219, 0.3);
}

.table-cta {
    text-align: center;
    margin-top: 2rem;
}

.table-cta a {
    color: #6ee7b7;
    font-weight: 600;
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
}

.table-cta a::after {
    content: '→';
    transition: var(--transition);
}

.table-cta a:hover::after {
    transform: translateX(4px);
}

/* ========================================
   Values Strip
   ======================================== */

.values-strip {
    padding: 5rem 2rem;
    max-width: 1200px;
    margin: 0 auto;
}

.values-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 3rem;
}

.value-item {
    border-left: 3px solid var(--accent);
    padding-left: 1.5rem;
}

.value-item h3 {
    font-family: var(--font-heading);
    font-size: 1.25rem;
    font-weight: 700;
    margin-bottom: 0.75rem;
}

.value-item p {
    color: var(--subtle);
    line-height: 1.6;
}

/* ========================================
   Topics/Categories Section
   ======================================== */

.topics-section {
    padding: 5rem 2rem;
    background: var(--accent-light);
}

.topics-inner {
    max-width: 1200px;
    margin: 0 auto;
    text-align: center;
}

.topics-inner h2 {
    font-family: var(--font-heading);
    font-size: 2rem;
    font-weight: 700;
    margin-bottom: 2rem;
}

.topics-grid {
    display: flex;
    flex-wrap: wrap;
    gap: 1rem;
    justify-content: center;
}

.topic-pill {
    padding: 0.75rem 1.5rem;
    background: var(--card-bg);
    border: 1px solid var(--border);
    border-radius: 100px;
    font-weight: 600;
    color: var(--ink);
    transition: var(--transition);
}

.topic-pill:hover {
    background: var(--accent);
    color: var(--paper);
    border-color: var(--accent);
    transform: translateY(-2px);
}

/* ========================================
   Newsletter Signup
   ======================================== */

.signup-box {
    background: var(--card-bg);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 2.5rem;
    box-shadow: var(--shadow-md);
}

.signup-hero {
    max-width: 700px;
    margin: 0 auto 5rem;
}

.signup-bottom {
    max-width: 600px;
    margin: 5rem auto 0;
    text-align: center;
}

.signup-lead {
    display: flex;
    align-items: flex-start;
    gap: 1.5rem;
    margin-bottom: 2rem;
}

.signup-icon {
    font-size: 3rem;
    line-height: 1;
    flex-shrink: 0;
}

.signup-lead h3 {
    font-family: var(--font-heading);
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: 0.5rem;
}

.signup-lead p {
    color: var(--subtle);
    line-height: 1.6;
}

.signup-form {
    margin-bottom: 1rem;
}

.signup-fields {
    display: flex;
    gap: 1rem;
}

.signup-fields input {
    flex: 1;
    padding: 0.875rem 1.25rem;
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    font-family: var(--font-body);
    font-size: 1rem;
    transition: var(--transition);
}

.signup-fields input:focus {
    outline: none;
    border-color: var(--accent);
    box-shadow: 0 0 0 3px rgba(26, 107, 74, 0.1);
}

.signup-fields button {
    padding: 0.875rem 2rem;
    background: var(--accent);
    color: var(--paper);
    border-radius: var(--radius-sm);
    font-weight: 600;
    font-size: 1rem;
    transition: var(--transition);
    white-space: nowrap;
}

.signup-fields button:hover {
    background: #155a3d;
    transform: translateY(-1px);
    box-shadow: var(--shadow-md);
}

.signup-fields button:active {
    transform: translateY(0);
}

.signup-msg {
    padding: 0.875rem 1.25rem;
    border-radius: var(--radius-sm);
    font-size: 0.875rem;
    font-weight: 600;
    display: none;
}

.signup-msg.success {
    display: block;
    background: rgba(26, 107, 74, 0.1);
    color: var(--accent);
    border: 1px solid rgba(26, 107, 74, 0.2);
}

.signup-msg.error {
    display: block;
    background: rgba(239, 68, 68, 0.1);
    color: #dc2626;
    border: 1px solid rgba(239, 68, 68, 0.2);
}

.signup-fine {
    font-size: 0.75rem;
    color: var(--subtle);
    line-height: 1.5;
}

/* ========================================
   Closing Section
   ======================================== */

.closing {
    padding: 5rem 2rem;
    max-width: 800px;
    margin: 0 auto;
    text-align: center;
    border-top: 1px solid var(--border);
}

.closing h2 {
    font-family: var(--font-heading);
    font-size: 2rem;
    font-weight: 700;
    margin-bottom: 1rem;
}

.closing p {
    color: var(--subtle);
    font-size: 1.125rem;
    line-height: 1.6;
}

/* ========================================
   Footer
   ======================================== */

footer {
    background: var(--card-bg);
    border-top: 1px solid var(--border);
    padding: 3rem 2rem 2rem;
}

.footer-inner {
    max-width: 1200px;
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: 2rem;
}

.footer-brand .logo {
    font-family: var(--font-heading);
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--ink);
    display: flex;
    align-items: center;
    gap: 0.5rem;
    margin-bottom: 0.5rem;
}

.footer-brand .logo .mark {
    color: var(--accent);
}

.footer-tagline {
    color: var(--subtle);
    font-size: 0.875rem;
}

.footer-links {
    display: flex;
    gap: 2rem;
}

.footer-links a {
    color: var(--subtle);
    font-weight: 500;
    font-size: 0.875rem;
    transition: color 0.2s;
}

.footer-links a:hover {
    color: var(--accent);
}

.footer-social {
    display: flex;
    gap: 1rem;
}

.footer-social a {
    width: 36px;
    height: 36px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    background: var(--accent-light);
    color: var(--accent);
    transition: var(--transition);
}

.footer-social a:hover {
    background: var(--accent);
    color: var(--paper);
    transform: translateY(-2px);
}

.footer-social svg {
    width: 18px;
    height: 18px;
}

.footer-bottom {
    max-width: 1200px;
    margin: 0 auto;
    padding-top: 2rem;
    border-top: 1px solid var(--border);
    text-align: center;
    color: var(--subtle);
    font-size: 0.875rem;
}

/* ========================================
   Article Page
   ======================================== */

.article-hero {
    max-width: 800px;
    margin: 6rem auto 3rem;
    padding: 0 2rem;
    text-align: center;
}

.breadcrumb {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    justify-content: center;
    margin-bottom: 2rem;
    font-size: 0.875rem;
    color: var(--subtle);
}

.breadcrumb a {
    color: var(--accent);
}

.breadcrumb a:hover {
    text-decoration: underline;
}

.breadcrumb span {
    color: var(--border);
}

.article-hero .card-category {
    margin-bottom: 1rem;
}

.article-hero h1 {
    font-family: var(--font-heading);
    font-size: 3rem;
    font-weight: 700;
    line-height: 1.2;
    margin-bottom: 1.5rem;
    letter-spacing: -0.02em;
}

.article-meta {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 1rem;
    color: var(--subtle);
    font-size: 0.875rem;
}

.article-meta span {
    display: flex;
    align-items: center;
    gap: 0.25rem;
}

.article-content {
    max-width: 720px;
    margin: 0 auto;
    padding: 0 2rem 5rem;
}

.article-content h2 {
    font-family: var(--font-heading);
    font-size: 2rem;
    font-weight: 700;
    margin-top: 3rem;
    margin-bottom: 1rem;
    padding-top: 2rem;
    border-top: 1px solid var(--border);
    letter-spacing: -0.01em;
}

.article-content h3 {
    font-family: var(--font-heading);
    font-size: 1.5rem;
    font-weight: 700;
    margin-top: 2rem;
    margin-bottom: 1rem;
}

.article-content p {
    margin-bottom: 1.5rem;
    line-height: 1.75;
    color: var(--ink);
}

.article-content ul,
.article-content ol {
    margin-bottom: 1.5rem;
    padding-left: 1.5rem;
}

.article-content ul li,
.article-content ol li {
    list-style: disc;
    margin-bottom: 0.5rem;
    line-height: 1.75;
}

.article-content ol li {
    list-style: decimal;
}

.article-content blockquote {
    border-left: 4px solid var(--accent);
    padding-left: 1.5rem;
    margin: 2rem 0;
    font-style: italic;
    color: var(--subtle);
}

.article-content a {
    color: var(--accent);
    font-weight: 600;
}

.article-content a:hover {
    text-decoration: underline;
}

.article-content table {
    width: 100%;
    border-collapse: collapse;
    margin: 2rem 0;
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    overflow: hidden;
}

.article-content table th {
    background: var(--accent-light);
    padding: 0.75rem 1rem;
    text-align: left;
    font-weight: 700;
    font-size: 0.875rem;
    color: var(--accent);
    border-bottom: 1px solid var(--border);
}

.article-content table td {
    padding: 0.75rem 1rem;
    border-bottom: 1px solid var(--border);
}

.article-content table tbody tr:last-child td {
    border-bottom: none;
}

.article-content table tbody tr:nth-child(even) {
    background: rgba(26, 107, 74, 0.02);
}

.article-content .comparison-table {
    background: var(--ink);
    color: var(--paper);
    border-radius: var(--radius-md);
    padding: 1.5rem;
    margin: 2rem 0;
}

.article-content .comparison-table table {
    border: 1px solid rgba(255, 255, 255, 0.1);
}

.article-content .comparison-table th {
    background: rgba(255, 255, 255, 0.05);
    color: #9ca3af;
}

.article-content .comparison-table td {
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
    color: var(--paper);
}

.tool-section {
    background: var(--card-bg);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 2rem;
    margin: 3rem 0;
}

.tool-section h3 {
    font-family: var(--font-heading);
    font-size: 1.75rem;
    font-weight: 700;
    margin-top: 0;
    margin-bottom: 1rem;
    display: flex;
    align-items: center;
    gap: 1rem;
}

.tool-verdict {
    display: inline-block;
}

.pros-cons {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 2rem;
    margin: 2rem 0;
}

.pros h4,
.cons h4 {
    font-family: var(--font-heading);
    font-size: 1.125rem;
    font-weight: 700;
    margin-bottom: 1rem;
}

.pros h4 {
    color: var(--accent);
}

.cons h4 {
    color: #dc2626;
}

.pros ul,
.cons ul {
    padding-left: 0;
}

.pros li,
.cons li {
    list-style: none;
    padding-left: 1.75rem;
    position: relative;
    margin-bottom: 0.75rem;
}

.pros li::before {
    content: '✓';
    position: absolute;
    left: 0;
    color: var(--accent);
    font-weight: 700;
}

.cons li::before {
    content: '✗';
    position: absolute;
    left: 0;
    color: #dc2626;
    font-weight: 700;
}

.pricing-box {
    background: var(--accent-light);
    border: 1px solid var(--accent);
    border-radius: var(--radius-md);
    padding: 1.5rem;
    margin: 2rem 0;
}

.pricing-box h4 {
    font-family: var(--font-heading);
    font-size: 1.125rem;
    font-weight: 700;
    color: var(--accent);
    margin-bottom: 0.75rem;
}

.affiliate-link {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.875rem 1.75rem;
    background: var(--accent);
    color: var(--paper);
    border-radius: var(--radius-sm);
    font-weight: 600;
    margin-top: 1.5rem;
    transition: var(--transition);
}

.affiliate-link:hover {
    background: #155a3d;
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
    text-decoration: none;
}

.affiliate-link::after {
    content: '→';
}

.article-nav {
    max-width: 720px;
    margin: 5rem auto 0;
    padding: 0 2rem 3rem;
    display: flex;
    justify-content: space-between;
    gap: 2rem;
    border-top: 1px solid var(--border);
    padding-top: 3rem;
}

.article-nav a {
    flex: 1;
    padding: 1.5rem;
    background: var(--card-bg);
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    transition: var(--transition);
}

.article-nav a:hover {
    border-color: var(--accent);
    box-shadow: var(--shadow-md);
}

.article-nav .nav-label {
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--subtle);
    margin-bottom: 0.5rem;
}

.article-nav .nav-title {
    font-weight: 700;
    color: var(--ink);
}

.related-articles {
    max-width: 1200px;
    margin: 5rem auto;
    padding: 0 2rem;
}

.related-articles h2 {
    font-family: var(--font-heading);
    font-size: 2rem;
    font-weight: 700;
    margin-bottom: 2rem;
    text-align: center;
}

.related-articles .article-cards {
    grid-template-columns: repeat(3, 1fr);
}

/* ========================================
   404 Page
   ======================================== */

.not-found {
    min-height: 70vh;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    text-align: center;
    padding: 2rem;
}

.not-found h1 {
    font-family: var(--font-heading);
    font-size: 8rem;
    font-weight: 700;
    color: var(--accent);
    line-height: 1;
    margin-bottom: 1rem;
}

.not-found h2 {
    font-family: var(--font-heading);
    font-size: 2rem;
    font-weight: 700;
    margin-bottom: 1rem;
}

.not-found p {
    color: var(--subtle);
    font-size: 1.125rem;
    margin-bottom: 2rem;
}

.not-found a {
    display: inline-block;
    padding: 0.875rem 1.75rem;
    background: var(--accent);
    color: var(--paper);
    border-radius: var(--radius-sm);
    font-weight: 600;
    transition: var(--transition);
}

.not-found a:hover {
    background: #155a3d;
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

/* ========================================
   Mobile Responsive (max-width: 768px)
   ======================================== */

@media (max-width: 768px) {
    /* Navigation */
    .nav-toggle {
        display: flex;
    }

    .nav-links {
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        flex-direction: column;
        background: var(--paper);
        border-bottom: 1px solid var(--border);
        padding: 1rem 2rem;
        gap: 1rem;
        display: none;
    }

    .nav-links.open {
        display: flex;
    }

    /* Hero */
    .hero {
        padding: 6rem 1.5rem 3rem;
    }

    .hero h1 {
        font-size: 2.5rem;
    }

    .hero-sub {
        font-size: 1.125rem;
    }

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

    /* Article Cards */
    .article-cards {
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }

    /* Editorial */
    .editorial-grid {
        grid-template-columns: 1fr;
        gap: 2rem;
    }

    .content-types {
        grid-template-columns: 1fr;
    }

    /* Table */
    .table-scroll {
        border-radius: var(--radius-md);
        box-shadow: var(--shadow-sm);
    }

    .preview-table {
        min-width: 600px;
    }

    /* Values */
    .values-grid {
        grid-template-columns: 1fr;
        gap: 2rem;
    }

    /* Signup */
    .signup-fields {
        flex-direction: column;
    }

    .signup-lead {
        flex-direction: column;
        text-align: center;
    }

    /* Footer */
    .footer-inner {
        flex-direction: column;
        gap: 2rem;
        text-align: center;
    }

    .footer-links {
        flex-direction: column;
        gap: 1rem;
    }

    .footer-social {
        justify-content: center;
    }

    /* Article Page */
    .article-hero {
        margin-top: 5rem;
        padding: 0 1.5rem;
    }

    .article-hero h1 {
        font-size: 2rem;
    }

    .article-content {
        padding: 0 1.5rem 3rem;
    }

    .article-content h2 {
        font-size: 1.5rem;
    }

    .article-content h3 {
        font-size: 1.25rem;
    }

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

    .article-nav {
        flex-direction: column;
        padding: 0 1.5rem 2rem;
        margin-top: 3rem;
    }

    .related-articles .article-cards {
        grid-template-columns: 1fr;
    }

    /* 404 */
    .not-found h1 {
        font-size: 5rem;
    }

    .not-found h2 {
        font-size: 1.5rem;
    }
}

/* ========================================
   Utility Classes
   ======================================== */

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 2rem;
}

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

.mt-1 { margin-top: 0.5rem; }
.mt-2 { margin-top: 1rem; }
.mt-3 { margin-top: 1.5rem; }
.mt-4 { margin-top: 2rem; }
.mt-5 { margin-top: 3rem; }

.mb-1 { margin-bottom: 0.5rem; }
.mb-2 { margin-bottom: 1rem; }
.mb-3 { margin-bottom: 1.5rem; }
.mb-4 { margin-bottom: 2rem; }
.mb-5 { margin-bottom: 3rem; }

.hidden {
    display: none;
}

.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border-width: 0;
}