/* ========================================
   FARPSEC
   Aesthetic: Austere, Modern Defense Tech
   ======================================== */

:root {
    --bg-main: #000000;
    --text-primary: #FFFFFF;
    --text-secondary: #888888;
    --border-color: #222222;
    --font-heading: 'Inter', sans-serif;
    --font-body: 'Inter', sans-serif;
    --font-mono: 'JetBrains Mono', monospace;
}

:root.light {
    --bg-main: #f5f5f0;
    --text-primary: #111111;
    --text-secondary: #555555;
    --border-color: #d4d4d4;
}

.light .nav { background: rgba(245, 245, 240, 0.92); }
.light .section-num { color: var(--text-secondary); }
.light .btn { background: #111; color: #f5f5f0; }
.light .btn:hover { background: #333; }
.light .form-input { background: #fff; border-color: var(--border-color); color: var(--text-primary); }
.light .footer { background: #e8e8e3; }
.light .card, .light .stat-card, .light .feature-card { background: #fff; border-color: var(--border-color); }
.light .hero-fade { background: linear-gradient(to bottom, transparent 0%, var(--bg-main) 100%); }
.light ::selection { background: var(--text-primary); color: var(--bg-main); }
.light .modal-overlay { background: rgba(0, 0, 0, 0.5); }
.light .modal-content { background: #fff; }
.light .mermaid .cluster rect { fill: #eaeaf0 !important; stroke: #c0c0cc !important; }
.light .mermaid .nodeLabel { color: #111 !important; }
.light .mermaid .edgeLabel { background: #f5f5f0 !important; }

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

html {
    scroll-behavior: smooth;
    background: var(--bg-main);
    overflow-x: hidden;
}

body {
    background: var(--bg-main);
    color: var(--text-primary);
    font-family: var(--font-body);
    font-weight: 400;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    line-height: 1.6;
    overflow-x: hidden;
}

::selection {
    background: var(--text-primary);
    color: var(--bg-main);
}

.container {
    max-width: 1600px;
    margin: 0 auto;
    padding: 0 40px;
}

/* Animations */
.reveal {
    opacity: 0;
    transform: translateY(16px);
    transition: opacity 0.8s cubic-bezier(0.2, 1, 0.4, 1), transform 0.8s cubic-bezier(0.2, 1, 0.4, 1);
}

.reveal.visible {
    opacity: 1;
    transform: translateY(0);
}

.reveal-delay-1 { transition-delay: 0.15s; }

/* Nav */
.nav {
    position: fixed;
    top: 0;
    width: 100%;
    z-index: 100;
    background: rgba(0, 0, 0, 0.8);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--border-color);
}

.nav-inner {
    display: flex;
    justify-content: space-between;
    align-items: center;
    min-height: 80px;
    padding: 0 40px;
    flex-wrap: wrap;
    gap: 20px;
}

@media (max-width: 1024px) {
    .nav-inner {
        justify-content: center;
        padding: 20px 40px;
    }
}

.nav-brand {
    font-family: var(--font-mono);
    font-size: 1rem;
    font-weight: 500;
    color: var(--text-primary);
    text-decoration: none;
    letter-spacing: 0.1em;
    flex-shrink: 0;
}

.nav-links {
    display: flex;
    gap: clamp(16px, 2.5vw, 40px);
    align-items: center;
    flex-wrap: wrap;
    justify-content: center;
}

.nav-links a {
    color: var(--text-secondary);
    text-decoration: none;
    font-size: 0.75rem;
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    transition: color 0.2s;
    white-space: nowrap;
}

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

.nav-theme-btn {
    background: none;
    border: none;
    color: var(--text-secondary);
    font-size: 1.35rem;
    padding: 2px 4px;
    cursor: pointer;
    transition: color 0.2s;
    line-height: 1;
}

.nav-theme-btn:hover {
    color: var(--text-primary);
}

.nav-links .nav-contact {
    color: var(--text-primary);
    border: 1px solid var(--border-color);
    padding: 10px 20px;
    font-size: 0.7rem;
    transition: all 0.2s;
    margin-left: 10px;
}

.nav-links .nav-contact:hover {
    background: var(--text-primary);
    color: var(--bg-main);
    border-color: var(--text-primary);
}

/* Hero */
.hero {
    position: relative;
    padding: 200px 0 120px;
    min-height: 80vh;
    display: flex;
    flex-direction: column;
    justify-content: center;
}

.hero-image {
    position: absolute;
    inset: 0;
    z-index: 1;
}

.hero-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    opacity: 0.35;
    filter: grayscale(100%) contrast(1.2);
}

.hero-fade {
    position: absolute;
    inset: 0;
    background: linear-gradient(to right, var(--bg-main) 30%, transparent 100%),
                linear-gradient(to top, var(--bg-main) 0%, transparent 30%);
}

.hero-inner {
    position: relative;
    z-index: 2;
}

.hero-title {
    font-size: clamp(3rem, 5vw, 6rem);
    font-weight: 500;
    line-height: 1.05;
    letter-spacing: -0.04em;
    margin-bottom: 32px;
    color: var(--text-primary);
}

.hero-sub {
    font-size: 1.25rem;
    max-width: 700px;
    color: var(--text-secondary);
    line-height: 1.5;
}

/* Internal Pages */
.page-header {
    padding: 160px 0 40px;
    border-bottom: 1px solid var(--border-color);
    background: var(--bg-main);
}

.page-header h1 {
    font-size: clamp(2.5rem, 4vw, 4.5rem);
    font-weight: 500;
    letter-spacing: -0.04em;
    margin-bottom: 24px;
}

.page-header .page-desc {
    font-size: 1.25rem;
    color: var(--text-secondary);
    max-width: 800px;
    line-height: 1.6;
}

.content-section {
    padding: 80px 0;
}

.content-section h2 {
    font-size: 2rem;
    font-weight: 500;
    margin-bottom: 32px;
    letter-spacing: -0.02em;
}

.content-section p {
    color: var(--text-secondary);
    font-size: 1.125rem;
    line-height: 1.6;
    margin-bottom: 24px;
    max-width: 800px;
}

/* Base Sections */
.section {
    padding: 60px 0;
}

.section-divider {
    height: 1px;
    background: var(--border-color);
    width: 100%;
}

.section-header {
    margin-bottom: 80px;
}

.section-num {
    font-family: var(--font-mono);
    font-size: 0.875rem;
    color: var(--text-secondary);
    display: block;
    margin-bottom: 16px;
}

.section-header h2 {
    font-size: 2.5rem;
    font-weight: 500;
    letter-spacing: -0.02em;
}

.column-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 80px;
}

.lead-text {
    font-size: 1.5rem;
    line-height: 1.4;
    color: var(--text-primary);
    letter-spacing: -0.01em;
}

.col p {
    color: var(--text-secondary);
    font-size: 1.125rem;
}

/* Feature Table */
.feature-table {
    border-top: 1px solid var(--border-color);
}

.feature-row {
    display: grid;
    grid-template-columns: 350px 1fr;
    gap: 40px;
    padding: 40px 0;
    border-bottom: 1px solid var(--border-color);
}

.feature-title {
    font-size: 1.25rem;
    font-weight: 500;
}

.feature-desc {
    color: var(--text-secondary);
    font-size: 1.125rem;
    max-width: 800px;
}

/* Product Cards */
.product-cards {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 40px;
}

.card {
    background: #080808;
    border: 1px solid var(--border-color);
    padding: 60px;
    display: flex;
    flex-direction: column;
}

.card-status {
    font-family: var(--font-mono);
    font-size: 0.75rem;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: 40px;
}

.card-title {
    font-size: 2rem;
    font-weight: 500;
    margin-bottom: 24px;
    letter-spacing: -0.02em;
}

.card-desc {
    color: var(--text-secondary);
    font-size: 1.125rem;
    margin-bottom: 48px;
    flex-grow: 1;
}

.card-meta {
    border-top: 1px solid var(--border-color);
    padding-top: 24px;
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.meta-item {
    font-family: var(--font-mono);
    font-size: 0.875rem;
    color: var(--text-primary);
    display: flex;
    align-items: center;
    gap: 12px;
}

.meta-item::before {
    content: '';
    display: block;
    width: 4px;
    height: 4px;
    background: var(--text-secondary);
}

/* Spec Tables */
.spec-container {
    margin-top: 80px;
    border-top: 1px solid var(--border-color);
    padding-top: 40px;
}

.spec-container h3 {
    font-size: 1.5rem;
    font-weight: 500;
    margin-bottom: 24px;
    color: var(--text-primary);
}

.spec-table {
    width: 100%;
    border-collapse: collapse;
}

.spec-table tr {
    border-bottom: 1px solid var(--border-color);
}

.spec-table td {
    padding: 24px 0;
    font-family: var(--font-mono);
    font-size: 0.875rem;
}

.spec-table td.spec-label {
    width: 40%;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.spec-table td.spec-value {
    color: var(--text-primary);
}

/* Contact */
.text-center {
    text-align: center;
    display: flex;
    flex-direction: column;
    align-items: center;
}

.contact-heading {
    font-size: 4rem;
    font-weight: 500;
    letter-spacing: -0.04em;
    margin-bottom: 24px;
}

.contact-sub {
    font-size: 1.25rem;
    color: var(--text-secondary);
    margin-bottom: 64px;
}

.btn {
    display: inline-block;
    padding: 24px 48px;
    background: var(--text-primary);
    color: var(--bg-main);
    text-decoration: none;
    font-weight: 500;
    font-size: 1.125rem;
    transition: background 0.2s, transform 0.2s;
}

.btn:hover {
    background: #DDDDDD;
}

/* Forms & Inputs */
.form-group {
    margin-bottom: 24px;
    text-align: left;
    width: 100%;
}

.form-label {
    display: block;
    font-family: var(--font-mono);
    font-size: 0.75rem;
    color: var(--text-secondary);
    margin-bottom: 12px;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.form-input {
    width: 100%;
    background: transparent;
    border: none;
    border-bottom: 1px solid var(--border-color);
    padding: 16px 0;
    color: var(--text-primary);
    font-family: var(--font-body);
    font-size: 1.125rem;
    transition: border-color 0.2s;
    outline: none;
}

.form-input:focus {
    border-bottom-color: var(--text-primary);
}

.form-input::placeholder {
    color: var(--text-secondary);
    opacity: 0.5;
}

select.form-input {
    appearance: none;
    border-radius: 0;
    cursor: pointer;
}

/* Gateway Layout */
.gateway {
    height: 100vh;
    display: grid;
    grid-template-columns: 1fr 1fr;
    overflow: hidden;
}

.gateway-left {
    background: #050505;
    position: relative;
    overflow: hidden;
    padding: 60px;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    border-right: 1px solid var(--border-color);
}

.gateway-left::before {
    content: '';
    position: absolute;
    inset: 0;
    background: url('/img/gateway-bg.png') center/cover no-repeat;
    opacity: 0.12;
    mix-blend-mode: luminosity;
    filter: contrast(1.2);
    z-index: 0;
    transition: background-image 0.5s ease-in-out;
}

.gateway-left.is-registering::before {
    background-image: url('/img/register-bg.png');
}

.gateway-left > * {
    position: relative;
    z-index: 1;
}

.gateway-right {
    position: relative;
    padding: 60px;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    background: linear-gradient(135deg, #0a0a0a 0%, #000 100%);
    overflow-y: auto;
}

.gateway-right::after {
    content: '';
    position: absolute;
    inset: 0;
    background: url('/img/gateway-bg.png') center/cover no-repeat;
    opacity: 0.03;
    pointer-events: none;
    z-index: 0;
}

.gateway-form-container {
    position: relative;
    z-index: 1;
}

.gateway-form-container {
    width: 100%;
    max-width: 480px;
}

.gateway-form-container h1 {
    font-size: 3rem;
    font-weight: 500;
    letter-spacing: -0.04em;
    margin-bottom: 16px;
}

.gateway-form-container p {
    color: var(--text-secondary);
    font-size: 1.125rem;
    margin-bottom: 48px;
}

/* Light Mode Gateway Overrides */
.light .gateway-left {
    background: #e6e6e1;
}

.light .gateway-left::before {
    opacity: 0.08;
    background-blend-mode: multiply;
}

.light .gateway-right {
    background: #fff;
}

.light .gateway-right::after {
    opacity: 0.01;
    filter: invert(1);
}

.light .gateway-error {
    background: #fdf2f2 !important;
    border-color: #fca5a5 !important;
    color: #991b1b !important;
}

/* Footer */
.footer {
    padding: 60px 0;
}

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

.footer-brand {
    font-family: var(--font-mono);
    font-size: 0.875rem;
    color: var(--text-secondary);
}

.footer-meta {
    color: var(--text-secondary);
    font-size: 0.875rem;
}

/* Long-form Content (Substack replacement) */
.prose {
    max-width: 1200px;
    margin: 0 auto;
    font-size: 1.125rem;
    line-height: 1.8;
}

.prose h1, .prose h2, .prose h3 {
    color: var(--text-primary);
    margin-top: 32px;
    margin-bottom: 16px;
    letter-spacing: -0.02em;
    font-weight: 500;
}

.prose p {
    color: var(--text-secondary);
    margin-bottom: 32px;
}

.prose blockquote {
    border-left: 2px solid var(--border-color);
    padding-left: 24px;
    margin: 40px 0;
    font-size: 1.25rem;
    font-style: italic;
    color: #AAAAAA;
}

.feed-item {
    padding: 40px 0;
    border-bottom: 1px solid var(--border-color);
}

.feed-meta {
    font-family: var(--font-mono);
    font-size: 0.875rem;
    color: var(--text-secondary);
    margin-bottom: 16px;
    display: flex;
    gap: 16px;
}

.feed-item h3 {
    font-size: 2rem;
    margin-bottom: 16px;
}

.feed-item h3 a {
    color: var(--text-primary);
    text-decoration: none;
}

.feed-item p {
    color: var(--text-secondary);
    font-size: 1.125rem;
    max-width: 800px;
}

/* Interactivity (Likes / Comments) */
.interaction-bar {
    margin-top: 60px;
    padding-top: 24px;
    border-top: 1px solid var(--border-color);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.action-btn {
    background: transparent;
    border: 1px solid var(--border-color);
    color: var(--text-primary);
    padding: 12px 24px;
    font-family: var(--font-mono);
    font-size: 0.875rem;
    cursor: pointer;
    transition: all 0.2s;
    display: inline-flex;
    align-items: center;
    gap: 8px;
}

.action-btn:hover {
    border-color: var(--text-secondary);
}

.action-btn.active {
    background: var(--text-primary);
    color: var(--bg-main);
    border-color: var(--text-secondary);
}

.comments-section {
    margin-top: 60px;
}

.comment-entry {
    margin-bottom: 32px;
}

.comment-input {
    width: 100%;
    background: transparent;
    border: 1px solid var(--border-color);
    padding: 16px;
    color: var(--text-primary);
    font-family: var(--font-body);
    font-size: 1rem;
    min-height: 100px;
    resize: vertical;
    outline: none;
    margin-bottom: 12px;
}

.comment-input:focus {
    border-color: var(--text-secondary);
}

.comment-list {
    margin-top: 48px;
}

.comment-node {
    border-left: 2px solid var(--border-color);
    padding-left: 24px;
    margin-bottom: 32px;
}

.comment-meta {
    font-family: var(--font-mono);
    font-size: 0.75rem;
    color: var(--text-secondary);
    margin-bottom: 8px;
}

.comment-body {
    color: var(--text-primary);
    font-size: 1rem;
    line-height: 1.5;
}

/* Card / link hover lift */
a.card, a.card:visited { color: inherit; }
a.card:hover, a[style*="border"]:hover {
    border-color: var(--text-secondary) !important;
    transform: translateY(-3px);
}

/* Kill default link colors on tile links */
a[style*="border: 1px solid"],
a[style*="border: 1px solid"]:visited {
    color: inherit;
}

/* Responsive */
@media (max-width: 992px) {
    .column-grid, .product-cards {
        grid-template-columns: 1fr;
        gap: 40px;
    }
    
    .feature-row {
        grid-template-columns: 1fr;
        gap: 16px;
    }
}

/* Mobile nav toggle */
.nav-toggle {
    display: none;
    background: none;
    border: 1px solid var(--border-color);
    color: var(--text-primary);
    font-family: var(--font-mono);
    font-size: 0.7rem;
    letter-spacing: 0.1em;
    padding: 8px 14px;
    cursor: pointer;
    text-transform: uppercase;
}

@media (max-width: 768px) {
    .container { padding: 0 24px; }
    .nav-inner { padding: 0 24px; }
    .nav-links { display: none; }
    .nav-toggle { display: block; }
}

/* Article Styles */
.article-cta {
    margin-top: 80px;
    padding: 60px;
    background: #050505;
    border: 1px solid var(--border-color);
    text-align: center;
}

.article-cta h3 {
    margin-top: 0;
    font-size: 2rem;
    margin-bottom: 12px;
    letter-spacing: -0.02em;
}

.article-cta p {
    font-size: 1.125rem;
    margin-bottom: 32px;
    color: var(--text-secondary);
}

.light .article-cta {
    background: #ffffff;
}

.post-content-render h2 { margin-top: 3rem; margin-bottom: 1rem; font-size: 1.75rem; font-weight: 500; color: var(--text-primary); letter-spacing: -0.02em; }
.post-content-render h3 { margin-top: 2rem; margin-bottom: 0.75rem; font-size: 1.35rem; font-weight: 500; color: var(--text-primary); letter-spacing: -0.01em; }
.post-content-render h4 { margin-top: 3rem; margin-bottom: 1rem; font-size: 1.05rem; font-weight: 600; color: var(--text-primary); padding-top: 2rem; border-top: 1px solid var(--border-color); font-family: var(--font-mono); letter-spacing: 0.01em; }
.post-content-render h3 + h4 { border-top: none; padding-top: 0; margin-top: 1.5rem; }
.post-content-render h4 + p { font-size: 0.875rem; line-height: 1.7; border-left: 2px solid var(--border-color); padding-left: 1rem; margin-bottom: 1.25rem; color: var(--text-secondary); }
.post-content-render h4 + p strong { color: var(--text-primary); font-family: var(--font-mono); font-size: 0.8rem; letter-spacing: 0.03em; text-transform: uppercase; }
.post-content-render p { margin-bottom: 1.5rem; line-height: 1.8; color: var(--text-primary); }
.post-content-render a { color: var(--text-primary); text-decoration: underline; text-underline-offset: 3px; transition: opacity 0.2s; }
.post-content-render a:hover { opacity: 0.7; }
.post-content-render blockquote { border-left: 2px solid var(--text-primary); padding-left: 1.5rem; color: var(--text-secondary); margin: 2rem 0; font-style: italic; }
.post-content-render pre { background: #050505; padding: 1.5rem; overflow-x: auto; font-family: var(--font-mono); font-size: 0.875rem; border: 1px solid var(--border-color); margin-bottom: 2rem; border-radius: 4px; max-width: 100%; }
.light .post-content-render pre { background: #fdfdfd; }
.post-content-render code { font-family: var(--font-mono); color: var(--text-primary); background: rgba(255,255,255,0.05); padding: 0 4px; border-radius: 2px; }
.post-content-render pre code { background: none; padding: 0; }
.light .post-content-render code { background: rgba(0,0,0,0.05); }
.post-content-render ul, .post-content-render ol { margin-bottom: 1.5rem; padding-left: 2rem; }
.post-content-render li { margin-bottom: 0.5rem; color: var(--text-primary); line-height: 1.7; }
.post-content-render img { max-width: 100%; height: auto; border: 1px solid var(--border-color); margin: 2rem 0; }
.post-content-render hr { border: none; border-top: 1px solid var(--border-color); margin: 2.5rem 0; }

.post-content-render .table-wrap { overflow-x: auto; -webkit-overflow-scrolling: touch; margin-bottom: 2rem; }
.post-content-render table { width: 100%; border-collapse: collapse; font-family: var(--font-mono); font-size: 0.85rem; min-width: 400px; }
.post-content-render thead { border-bottom: 2px solid var(--text-primary); }
.post-content-render thead th { padding: 10px 16px; text-align: left; font-weight: 600; color: var(--text-primary); text-transform: uppercase; letter-spacing: 0.05em; font-size: 0.75rem; white-space: nowrap; }
.post-content-render tbody tr { border-bottom: 1px solid var(--border-color); }
.post-content-render tbody tr:last-child { border-bottom: none; }
.post-content-render tbody td { padding: 12px 16px; color: var(--text-primary); line-height: 1.5; vertical-align: top; }
.post-content-render tbody tr:hover { background: rgba(255,255,255,0.03); }
.light .post-content-render tbody tr:hover { background: rgba(0,0,0,0.02); }

@media (max-width: 600px) {
    .post-content-render table { font-size: 0.78rem; min-width: 320px; }
    .post-content-render thead th { padding: 8px 10px; font-size: 0.7rem; }
    .post-content-render tbody td { padding: 10px; }
}

/* Modal-specific markdown overrides — remove inherited .content-section p constraints */
.modal-content .post-content-render p { max-width: none; font-size: inherit; color: var(--text-primary); }
.modal-content .post-content-render h2 { font-size: 1.5rem; margin-top: 2.5rem; }
.modal-content .post-content-render h3 { font-size: 1.2rem; margin-top: 1.75rem; }

/* Team Styles */
.team-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(400px, 1fr));
    gap: 40px;
    margin-top: 40px;
}

.team-card {
    padding: 60px;
    background: rgba(255,255,255,0.02);
    border: 1px solid var(--border-color);
    position: relative;
    overflow: hidden;
    height: 100%;
}

.light .team-card {
    background: #ffffff;
}

.team-meta {
    font-family: var(--font-mono);
    font-size: 0.75rem;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.2em;
    margin-bottom: 32px;
}

.team-name {
    font-size: 2.5rem;
    font-weight: 500;
    margin-bottom: 8px;
    letter-spacing: -0.04em;
    color: var(--text-primary);
}

.team-role {
    font-size: 1.125rem;
    color: var(--text-secondary);
    margin-bottom: 40px;
    font-family: var(--font-mono);
}

.team-bio {
    font-size: 1rem;
    line-height: 1.8;
    color: var(--text-secondary);
    margin-bottom: 40px;
}

.team-bio strong {
    color: var(--text-primary);
}

.team-footer {
    padding-top: 32px;
    border-top: 1px solid var(--border-color);
}

.gpg {
    font-family: var(--font-mono);
    font-size: 0.75rem;
    color: var(--text-primary);
}

@media (max-width: 768px) {
    .team-grid {
        grid-template-columns: 1fr;
    }
    .team-card {
        padding: 40px 24px;
    }
    .team-name {
        font-size: 1.75rem;
    }
}

@media (max-width: 768px) {
    .hero {
        padding: 120px 0 60px;
        min-height: auto;
    }

    .nav-toggle {
        display: block;
    }

    .nav-inner {
        flex-wrap: wrap;
        justify-content: space-between;
        padding: 0 20px;
    }

    .nav-links {
        display: none;
        width: 100%;
        flex-direction: column;
        gap: 0;
        padding: 16px 0;
        border-top: 1px solid var(--border-color);
    }

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

    .nav-links a {
        padding: 12px 0;
        border-bottom: 1px solid rgba(255,255,255,0.04);
        width: 100%;
    }

    .nav-links .nav-contact {
        margin-left: 0;
        margin-top: 8px;
        text-align: center;
    }

    .hero-title {
        font-size: clamp(1.75rem, 6vw, 3rem);
    }

    .hero-sub {
        font-size: 1rem;
    }

    .contact-heading {
        font-size: clamp(1.75rem, 6vw, 2.5rem);
    }

    .card {
        padding: 24px;
    }

    .feature-row {
        grid-template-columns: 1fr;
        gap: 12px;
        padding: 24px 0;
    }

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

    .gateway-left {
        padding: 40px 20px;
        min-height: auto;
    }

    .gateway-left h2 {
        font-size: 2rem !important;
    }

    .gateway-right {
        padding: 32px 20px;
    }

    .gateway-form-container h1 {
        font-size: 2rem;
    }

    .container {
        padding: 0 16px;
    }

    .section {
        padding: 40px 0;
    }

    .page-header {
    background: #000;
    color: #fff;
    padding: 80px 0 40px;
}

    .page-header h1 {
        font-size: clamp(1.75rem, 6vw, 3rem);
    }

    .newsletter-inner {
        flex-direction: column;
        gap: 20px;
        text-align: center;
    }

    .newsletter-form {
        flex-direction: column;
        max-width: 100%;
    }

    .newsletter-btn {
        padding: 12px 24px;
    }

    /* Public modals */
    .modal-overlay {
        padding: 16px;
    }

    .modal-content {
        padding: 24px;
    }

    .modal-close-btn {
        top: 16px;
        right: 16px;
    }

    .modal-grid {
        grid-template-columns: 1fr;
        gap: 24px;
    }

    /* Interaction bar / comments */
    .interaction-bar {
        flex-direction: column;
        gap: 12px;
        align-items: flex-start;
    }

    .comments-section {
        padding: 24px 0;
    }
}

/* Home page grid collapse */
@media (max-width: 992px) {
    [style*="grid-template-columns: repeat(3"] {
        grid-template-columns: 1fr !important;
    }
    [style*="grid-template-columns: repeat(4"] {
        grid-template-columns: 1fr 1fr !important;
    }
    [style*="grid-template-columns: 1fr 1fr 1fr 1fr"] {
        grid-template-columns: 1fr 1fr !important;
    }
}

@media (max-width: 480px) {
    [style*="grid-template-columns: repeat(4"],
    [style*="grid-template-columns: 1fr 1fr 1fr 1fr"] {
        grid-template-columns: 1fr !important;
    }
}

/* Small phones */
@media (max-width: 480px) {
    .hero {
        padding: 100px 0 40px;
    }

    .hero-title {
        font-size: 1.5rem;
    }

    .card {
        padding: 20px;
    }

    .section-header h2 {
        font-size: 1.5rem;
    }
}

/* Newsletter */
.newsletter-section {
    padding: 60px 0;
    border-top: 1px solid var(--border-color);
    background: #030303;
}

.light .newsletter-section {
    background: #e6e6e1;
}

/* Suggested Articles */
.suggested-articles-section {
    margin: 80px 0;
    padding-top: 60px;
    border-top: 1px solid var(--border-color);
}

.suggested-title {
    font-size: 0.75rem;
    font-family: var(--font-mono);
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.1em;
    margin-bottom: 32px;
}

.suggested-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 24px;
}

.suggested-card {
    padding: 32px;
    background: rgba(255,255,255,0.02);
    border: 1px solid var(--border-color);
    text-decoration: none;
    transition: transform 0.3s cubic-bezier(0.2, 1, 0.4, 1), border-color 0.2s;
    display: block;
}

.light .suggested-card {
    background: #ffffff;
}

.suggested-card:hover {
    transform: translateY(-4px);
    border-color: var(--text-primary);
}

.suggested-card h4 {
    font-size: 1.25rem;
    margin-bottom: 12px;
    color: var(--text-primary);
    font-weight: 500;
}

.suggested-card p {
    font-size: 0.875rem;
    color: var(--text-secondary);
    line-height: 1.6;
    margin: 0;
}

.newsletter-inner {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 40px;
}

.newsletter-info {
    max-width: 500px;
}

.newsletter-info h3 {
    font-size: 1.25rem;
    margin-bottom: 8px;
    font-weight: 500;
}

.newsletter-info p {
    color: var(--text-secondary);
    font-size: 0.875rem;
}

.newsletter-form {
    display: flex;
    gap: 12px;
    flex: 1;
    max-width: 500px;
}

.newsletter-input {
    flex: 1;
    background: transparent;
    border: 1px solid var(--border-color);
    padding: 12px 16px;
    color: var(--text-primary);
    font-family: var(--font-mono);
    font-size: 0.875rem;
    outline: none;
    transition: border-color 0.2s;
}

.newsletter-input:focus {
    border-color: var(--text-secondary);
}

.newsletter-btn {
    background: var(--text-primary);
    color: var(--bg-main);
    border: none;
    padding: 0 24px;
    font-family: var(--font-mono);
    font-size: 0.75rem;
    font-weight: 600;
    cursor: pointer;
    text-transform: uppercase;
    transition: background 0.2s;
}

.newsletter-btn:hover {
    background: #DDD;
}
/* Modals / Popup Tiles */
.modal-overlay {
    position: fixed;
    inset: 0;
    z-index: 1000;
    background: rgba(0, 0, 0, 0.85);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    display: flex;
    justify-content: center;
    align-items: center;
    padding: 40px;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.4s cubic-bezier(0.2, 1, 0.4, 1);
}

.modal-overlay.active {
    opacity: 1;
    pointer-events: auto;
}

.modal-content {
    background: var(--bg-main);
    border: 1px solid var(--border-color);
    width: 100%;
    max-width: 1400px;
    max-height: 90vh;
    overflow-y: auto;
    position: relative;
    padding: 80px;
    transform: translateY(20px);
    transition: transform 0.4s cubic-bezier(0.2, 1, 0.4, 1);
}

.modal-overlay.active .modal-content {
    transform: translateY(0);
}

.modal-close-btn {
    position: absolute;
    top: 40px;
    right: 40px;
    background: transparent;
    border: none;
    color: var(--text-secondary);
    font-family: var(--font-mono);
    font-size: 0.75rem;
    cursor: pointer;
}

.modal-close-btn:hover {
    color: var(--text-primary);
}

.modal-grid {
    display: grid;
    grid-template-columns: 1fr 320px;
    gap: 80px;
}

@media (max-width: 992px) {
    .modal-grid {
        grid-template-columns: 1fr;
        gap: 40px;
    }

    .modal-content {
        padding: 40px;
    }

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

/* Reading Progress Bar */
.reading-progress-bar {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 3px;
    background: transparent;
    z-index: 9999;
    pointer-events: none;
}

.reading-progress-fill {
    height: 100%;
    width: 0%;
    background: var(--text-primary);
    transition: width 0.15s ease-out;
    opacity: 0.7;
}

.light .reading-progress-fill {
    background: #111;
}

/* Reading Meta */
.reading-meta {
    font-family: var(--font-mono);
    font-size: 0.75rem;
    color: var(--text-secondary);
    margin-bottom: 48px;
    display: flex;
    align-items: center;
    gap: 12px;
    flex-wrap: wrap;
    letter-spacing: 0.04em;
}

.reading-separator {
    color: var(--border-color);
}

/* Share Bar */
.share-bar {
    margin-top: 48px;
    padding: 20px 0;
    border-top: 1px solid var(--border-color);
    display: flex;
    align-items: center;
    gap: 12px;
    flex-wrap: wrap;
}

.share-label {
    font-family: var(--font-mono);
    font-size: 0.7rem;
    color: var(--text-secondary);
    letter-spacing: 0.1em;
    margin-right: 4px;
}

.share-btn {
    background: transparent;
    border: 1px solid var(--border-color);
    color: var(--text-secondary);
    padding: 8px 16px;
    font-family: var(--font-mono);
    font-size: 0.7rem;
    cursor: pointer;
    transition: all 0.2s;
    display: inline-flex;
    align-items: center;
    gap: 8px;
    letter-spacing: 0.04em;
}

.share-btn:hover {
    border-color: var(--text-primary);
    color: var(--text-primary);
}

.share-btn svg {
    flex-shrink: 0;
}

@media (max-width: 600px) {
    .share-bar {
        gap: 8px;
    }
    .share-btn span {
        display: none;
    }
    .share-btn {
        padding: 10px 12px;
    }
}

/* Card Share Button (listing pages) */
.card-share-btn {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    background: transparent;
    border: 1px solid var(--border-color);
    color: var(--text-secondary);
    padding: 5px 10px;
    font-family: var(--font-mono);
    font-size: 0.65rem;
    letter-spacing: 0.04em;
    cursor: pointer;
    transition: all 0.2s;
    white-space: nowrap;
    line-height: 1;
}

.card-share-btn:hover {
    border-color: var(--text-primary);
    color: var(--text-primary);
}

.card-share-btn svg {
    flex-shrink: 0;
}

.card-share-btn.copied {
    border-color: var(--text-primary);
    color: var(--text-primary);
}

/* Product Sections (inline, no modal) */
.product-section {
    border: 1px solid var(--border-color);
    background: #080808;
    padding: 60px;
    margin-bottom: 40px;
}

.light .product-section {
    background: #fff;
}

.product-header {
    display: flex;
    align-items: flex-start;
    gap: 32px;
    margin-bottom: 48px;
    padding-bottom: 40px;
    border-bottom: 1px solid var(--border-color);
}

.product-icon {
    width: 80px;
    height: 80px;
    flex-shrink: 0;
    color: var(--text-primary);
}

.product-icon svg {
    width: 100%;
    height: 100%;
}

.product-identity {
    flex: 1;
    min-width: 0;
}

.product-name-row {
    display: flex;
    align-items: baseline;
    gap: 16px;
    flex-wrap: wrap;
    margin-bottom: 8px;
}

.product-name {
    font-size: 2.5rem;
    font-weight: 500;
    letter-spacing: -0.03em;
    line-height: 1.1;
}

.product-version {
    font-family: var(--font-mono);
    font-size: 0.8rem;
    color: var(--text-secondary);
    letter-spacing: 0.05em;
    border: 1px solid var(--border-color);
    padding: 4px 12px;
    border-radius: 2px;
}

.product-status {
    font-family: var(--font-mono);
    font-size: 0.7rem;
    color: var(--text-secondary);
    letter-spacing: 0.1em;
    text-transform: uppercase;
}

.product-tagline {
    font-family: var(--font-mono);
    font-size: 0.95rem;
    color: var(--text-secondary);
    letter-spacing: 0.01em;
    line-height: 1.5;
}

.product-body {
    margin-bottom: 48px;
}

.product-description {
    max-width: 800px;
}

.product-features {
    margin-top: 48px;
    padding-top: 40px;
    border-top: 1px solid var(--border-color);
}

.product-features-title {
    font-size: 0.8rem;
    font-family: var(--font-mono);
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--text-secondary);
    margin-bottom: 24px;
    font-weight: 400;
}

.product-features-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 12px 48px;
}

.product-feature-item {
    font-family: var(--font-mono);
    font-size: 0.85rem;
    color: var(--text-primary);
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 8px 0;
}

.product-feature-dot {
    width: 4px;
    height: 4px;
    background: var(--text-secondary);
    flex-shrink: 0;
    border-radius: 50%;
}

.product-actions {
    display: flex;
    gap: 16px;
    padding-top: 40px;
    border-top: 1px solid var(--border-color);
    flex-wrap: wrap;
}

.product-action-btn {
    font-family: var(--font-mono);
    font-size: 0.8rem;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    text-decoration: none;
    padding: 14px 32px;
    display: inline-flex;
    align-items: center;
    gap: 10px;
    transition: all 0.2s ease;
    cursor: pointer;
}

.product-action-primary {
    background: var(--text-primary);
    color: var(--bg-main);
    border: 1px solid var(--text-primary);
}

.product-action-primary:hover {
    opacity: 0.85;
}

.product-action-secondary {
    background: transparent;
    color: var(--text-primary);
    border: 1px solid var(--border-color);
}

.product-action-secondary:hover {
    border-color: var(--text-primary);
}

@media (max-width: 768px) {
    .product-section {
        padding: 32px 24px;
    }
    .product-header {
        flex-direction: column;
        gap: 20px;
    }
    .product-icon {
        width: 56px;
        height: 56px;
    }
    .product-name {
        font-size: 1.75rem;
    }
    .product-features-grid {
        grid-template-columns: 1fr;
    }
    .product-actions {
        flex-direction: column;
    }
    .product-action-btn {
        text-align: center;
        justify-content: center;
    }
}