:root {
    --bg-color: #070707;
    --surface-color: #121212;
    --surface-border: #222222;
    --text-primary: #f2f2f2;
    --text-secondary: #8c8c8c;
    --accent: #b59a6d; /* Muted Gold / Bronze */
    --accent-hover: #cbb48b;
    
    --font-heading: 'Playfair Display', serif;
    --font-body: 'Inter', sans-serif;
}

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

html {
    scroll-behavior: smooth;
}

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



/* Typography */
h1, h2, h3, h4 {
    font-family: var(--font-heading);
    font-weight: 400;
    letter-spacing: -0.02em;
}

/* Navigation */
.navbar {
    position: fixed;
    top: 0;
    width: 100%;
    padding: 30px 0;
    background: linear-gradient(to bottom, rgba(7,7,7,0.95) 0%, rgba(7,7,7,0) 100%);
    backdrop-filter: blur(10px);
    z-index: 100;
    transition: padding 0.3s ease;
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 40px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    font-family: var(--font-heading);
    font-size: 1.4rem;
    font-style: italic;
    color: var(--accent);
}

.nav-links a {
    color: var(--text-secondary);
    text-decoration: none;
    margin-left: 40px;
    font-size: 0.85rem;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    transition: color 0.3s ease;
}

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

.nav-portal-btn {
    background: transparent;
    border: 1px solid var(--accent);
    color: var(--accent);
    padding: 8px 18px;
    font-family: var(--font-body);
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    cursor: pointer;
    margin-left: 30px;
    transition: all 0.3s ease;
}

.nav-portal-btn:hover {
    background: var(--accent);
    color: var(--bg-color);
}

/* Layout Containers */
.section-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 120px 40px;
}

/* Hero Section */
.hero-section {
    min-height: 100vh;
    display: flex;
    align-items: center;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 40px;
    padding-top: 100px;
    position: relative;
    overflow: hidden;
}

.hero-bg-wrapper {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 1;
    pointer-events: none;
}

.hero-bg-svg {
    width: 100%;
    height: 100%;
    display: block;
}

.hero-content {
    max-width: 800px;
    position: relative;
    z-index: 2;
}

.title {
    font-size: clamp(3rem, 6vw, 5.5rem);
    line-height: 1.1;
    margin-bottom: 30px;
    color: var(--text-primary);
}

.subtitle {
    font-size: 1.25rem;
    color: var(--text-secondary);
    font-weight: 300;
    max-width: 600px;
    margin-bottom: 50px;
    line-height: 1.8;
}

.hero-actions {
    display: flex;
    gap: 20px;
    align-items: center;
    flex-wrap: wrap;
}

.cta-button {
    display: inline-block;
    padding: 16px 36px;
    background-color: transparent;
    color: var(--accent);
    text-decoration: none;
    border: 1px solid var(--accent);
    font-size: 0.9rem;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    transition: all 0.4s ease;
}

.cta-button:hover {
    background-color: var(--accent);
    color: var(--bg-color);
}

.cta-button.secondary-cta {
    background: rgba(181, 154, 109, 0.05);
    border-color: rgba(181, 154, 109, 0.4);
    color: var(--text-primary);
    cursor: pointer;
}

.cta-button.secondary-cta:hover {
    border-color: var(--accent);
    background: rgba(181, 154, 109, 0.15);
    color: var(--accent);
}

/* Sections General */
.section-title {
    font-size: 3rem;
    margin-bottom: 60px;
    color: var(--text-primary);
}

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

/* Philosophy Section */
.split-layout {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 80px;
    align-items: center;
}

.split-text p {
    font-size: 1.15rem;
    color: var(--text-secondary);
    margin-bottom: 25px;
    font-weight: 300;
}

.split-stats {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 30px;
}

.stat-box {
    padding: 40px 30px;
    background-color: var(--surface-color);
    border: 1px solid var(--surface-border);
    display: flex;
    flex-direction: column;
    align-items: flex-start;
}

.stat-number {
    font-family: var(--font-heading);
    font-size: 3.5rem;
    color: var(--accent);
    line-height: 1;
    margin-bottom: 10px;
}

.stat-label {
    font-size: 0.85rem;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--text-secondary);
}

/* Systems Section */
.systems-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(450px, 1fr));
    gap: 40px;
}

.system-card {
    background-color: var(--surface-color);
    border: 1px solid var(--surface-border);
    padding: 50px;
    transition: transform 0.4s ease, border-color 0.4s ease;
}

.system-card:hover {
    transform: translateY(-5px);
    border-color: #333;
}

.card-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: 30px;
}

.card-header h3 {
    font-size: 2rem;
}

.badge {
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    padding: 6px 12px;
    border-radius: 20px;
    font-weight: 500;
}

.badge.active {
    background-color: rgba(181, 154, 109, 0.1);
    color: var(--accent);
    border: 1px solid rgba(181, 154, 109, 0.3);
}

.badge.dev {
    background-color: rgba(140, 140, 140, 0.1);
    color: var(--text-secondary);
    border: 1px solid rgba(140, 140, 140, 0.3);
}

.system-desc {
    color: var(--text-secondary);
    margin-bottom: 40px;
    font-weight: 300;
    min-height: 80px;
}

.system-metrics {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(120px, 1fr));
    gap: 16px;
    border-top: 1px solid var(--surface-border);
    padding-top: 24px;
    margin-bottom: 24px;
}

.metric {
    display: flex;
    flex-direction: column;
}

.m-label {
    font-size: 0.72rem;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    color: #666;
    margin-bottom: 5px;
}

.m-value {
    font-size: 1.1rem;
    color: var(--text-primary);
}

.metric .m-value.positive {
    color: #4eebad;
    font-weight: 500;
}

.metric .m-value.negative {
    color: #ff4d4f;
    font-weight: 500;
}

/* Card Toggles & Segmented Control */
.card-toggles {
    display: flex;
    background: #090909;
    border: 1px solid var(--surface-border);
    padding: 4px;
    margin: 24px 0;
    gap: 4px;
    border-radius: 4px;
}

.card-toggles .toggle-btn {
    flex: 1;
    background: transparent;
    border: none;
    color: var(--text-secondary);
    padding: 9px 12px;
    font-family: var(--font-body);
    font-size: 0.76rem;
    text-transform: uppercase;
    letter-spacing: 0.06em;
    cursor: pointer;
    transition: all 0.25s ease;
    border-radius: 2px;
    text-align: center;
}

.card-toggles .toggle-btn:hover {
    color: var(--text-primary);
    background: rgba(255, 255, 255, 0.03);
}

.card-toggles .toggle-btn.active {
    background: var(--accent);
    color: var(--bg-color);
    font-weight: 600;
}

/* System Card Tab Content */
.tab-content {
    display: none;
}

.tab-content.active {
    display: block;
    animation: tabFadeIn 0.3s cubic-bezier(0.16, 1, 0.3, 1);
}

@keyframes tabFadeIn {
    from {
        opacity: 0;
        transform: translateY(6px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Chart Container & Equity Curve */
.chart-container {
    background-color: #090909;
    border: 1px solid var(--surface-border);
    padding: 20px;
    margin-top: 20px;
    border-radius: 4px;
}

.chart-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 16px;
    padding-bottom: 10px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.04);
}

.chart-title {
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    color: var(--text-secondary);
}

.chart-legend {
    font-size: 0.75rem;
    color: var(--text-secondary);
    display: flex;
    align-items: center;
    gap: 6px;
}

.legend-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background-color: var(--accent);
}

.chart-wrapper {
    position: relative;
    width: 100%;
    height: 200px;
}

.chart-wrapper canvas {
    width: 100% !important;
    height: 100% !important;
}

/* Risk Parameters Section */
.tab-section-title {
    font-family: var(--font-heading);
    font-size: 1.15rem;
    color: var(--text-primary);
    margin-bottom: 18px;
    letter-spacing: -0.01em;
}

.risk-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
    gap: 14px;
}

.risk-card {
    background-color: #090909;
    border: 1px solid var(--surface-border);
    padding: 16px;
    display: flex;
    flex-direction: column;
    gap: 6px;
    border-radius: 3px;
    transition: border-color 0.25s ease;
}

.risk-card:hover {
    border-color: rgba(181, 154, 109, 0.3);
}

.risk-card .r-label {
    font-size: 0.7rem;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    color: #666;
}

.risk-card .r-val {
    font-size: 0.95rem;
    color: var(--text-primary);
    font-weight: 500;
}

/* Trades Table */
.table-responsive {
    width: 100%;
    overflow-x: auto;
}

.trades-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.85rem;
    text-align: left;
}

.trades-table th {
    font-size: 0.7rem;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    color: #666;
    border-bottom: 1px solid var(--surface-border);
    padding: 12px 10px;
    font-weight: 500;
}

.trades-table td {
    padding: 12px 10px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.03);
    color: var(--text-primary);
}

.trades-table tr:hover td {
    background-color: rgba(255, 255, 255, 0.02);
}

.side-tag {
    font-size: 0.68rem;
    font-weight: 600;
    padding: 3px 8px;
    border-radius: 3px;
    letter-spacing: 0.05em;
    display: inline-block;
}

.side-tag.buy {
    background: rgba(78, 235, 173, 0.1);
    color: #4eebad;
    border: 1px solid rgba(78, 235, 173, 0.25);
}

.side-tag.sell {
    background: rgba(255, 77, 79, 0.1);
    color: #ff4d4f;
    border: 1px solid rgba(255, 77, 79, 0.25);
}

.pnl.positive {
    color: #4eebad;
    font-weight: 500;
}

.pnl.negative {
    color: #ff4d4f;
    font-weight: 500;
}

/* Footer */
.footer {
    background-color: #030303;
    border-top: 1px solid #1a1a1a;
    padding: 80px 0 40px;
}

.footer-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 40px;
}

.footer-top {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 60px;
}

.footer-title {
    font-size: 2rem;
    font-style: italic;
    color: var(--accent);
}

.contact-email {
    color: var(--text-primary);
    text-decoration: none;
    font-size: 1.1rem;
    transition: color 0.3s ease;
}

.contact-email:hover {
    color: var(--accent);
}

.footer-bottom {
    display: flex;
    justify-content: space-between;
    border-top: 1px solid #1a1a1a;
    padding-top: 30px;
    color: #555;
    font-size: 0.85rem;
}

/* Hero Background SVG Animations */
.chart-line-main, .equity-line {
    stroke-dasharray: 2000;
    stroke-dashoffset: 2000;
    animation: drawEquityLine 3.5s cubic-bezier(0.25, 1, 0.5, 1) forwards, subtleFloat 12s ease-in-out infinite alternate;
}

.chart-line-sub {
    animation: dashPhase 30s linear infinite;
}

.pulsing-node {
    animation: nodePulse 2.5s ease-in-out infinite;
}

.pulsing-ring {
    animation: ringExpand 2.5s ease-in-out infinite;
    transform-origin: center;
}

@keyframes drawEquityLine {
    to {
        stroke-dashoffset: 0;
    }
}

@keyframes dashPhase {
    from { stroke-dashoffset: 0; }
    to { stroke-dashoffset: 1000; }
}

@keyframes nodePulse {
    0%, 100% { transform: scale(1); opacity: 0.7; }
    50% { transform: scale(1.4); opacity: 1; }
}

@keyframes ringExpand {
    0% { transform: scale(0.8); opacity: 0.6; }
    100% { transform: scale(2); opacity: 0; }
}

@keyframes subtleFloat {
    0% { transform: translateY(0px); }
    100% { transform: translateY(-12px); }
}

/* Infrastructure / Tech Stack Section */
.infrastructure-section {
    background-color: #0a0a0a;
    border-top: 1px solid var(--surface-border);
    border-bottom: 1px solid var(--surface-border);
}

.section-header-wrap {
    max-width: 700px;
    margin: 0 auto 60px;
}

.section-subtitle {
    font-size: 1.1rem;
    color: var(--text-secondary);
    font-weight: 300;
    line-height: 1.7;
    margin-top: 15px;
}

.tech-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: 30px;
}

.tech-card {
    background-color: var(--surface-color);
    border: 1px solid var(--surface-border);
    padding: 35px 30px;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    transition: transform 0.35s ease, border-color 0.35s ease, box-shadow 0.35s ease;
}

.tech-card:hover {
    transform: translateY(-6px);
    border-color: rgba(181, 154, 109, 0.4);
    box-shadow: 0 12px 30px rgba(0, 0, 0, 0.5);
}

.tech-icon-box {
    width: 50px;
    height: 50px;
    background: rgba(181, 154, 109, 0.08);
    border: 1px solid rgba(181, 154, 109, 0.2);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--accent);
    margin-bottom: 24px;
}

.tech-title {
    font-size: 1.4rem;
    color: var(--text-primary);
    margin-bottom: 12px;
}

.tech-desc {
    font-size: 0.9rem;
    color: var(--text-secondary);
    font-weight: 300;
    line-height: 1.6;
    margin-bottom: 25px;
}

.tech-tags {
    display: flex;
    gap: 8px;
    flex-wrap: wrap;
    border-top: 1px solid rgba(255, 255, 255, 0.05);
    padding-top: 20px;
}

.tech-tag {
    font-size: 0.7rem;
    text-transform: uppercase;
    letter-spacing: 0.06em;
    background-color: #070707;
    color: var(--text-secondary);
    padding: 4px 10px;
    border: 1px solid var(--surface-border);
}

/* Modal Overlay & Dialog Container */
.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    background: rgba(4, 4, 4, 0.85);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    z-index: 1000;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.35s cubic-bezier(0.16, 1, 0.3, 1);
}

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

.modal-container {
    background-color: var(--surface-color);
    border: 1px solid var(--surface-border);
    box-shadow: 0 25px 60px rgba(0, 0, 0, 0.9), 0 0 40px rgba(181, 154, 109, 0.08);
    width: 90%;
    max-width: 500px;
    padding: 40px;
    position: relative;
    transform: translateY(20px) scale(0.97);
    transition: transform 0.35s cubic-bezier(0.16, 1, 0.3, 1);
}

.modal-overlay.active .modal-container {
    transform: translateY(0) scale(1);
}

.modal-close, .modal-close-btn {
    position: absolute;
    top: 20px;
    right: 25px;
    background: none;
    border: none;
    color: var(--text-secondary);
    font-size: 1.8rem;
    cursor: pointer;
    line-height: 1;
    transition: color 0.2s ease;
}

.modal-close:hover, .modal-close-btn:hover {
    color: var(--accent);
}

.modal-title {
    font-size: 2.2rem;
    margin: 12px 0 8px;
    color: var(--text-primary);
}

.modal-subtitle {
    font-size: 0.9rem;
    color: var(--text-secondary);
    margin-bottom: 24px;
    font-weight: 300;
}

.status-banner {
    display: flex;
    align-items: center;
    gap: 10px;
    background: rgba(181, 154, 109, 0.06);
    border: 1px solid rgba(181, 154, 109, 0.2);
    padding: 10px 14px;
    font-size: 0.8rem;
    color: var(--accent);
    margin-bottom: 24px;
    border-radius: 2px;
}

.status-dot {
    width: 8px;
    height: 8px;
    background-color: var(--accent);
    border-radius: 50%;
    box-shadow: 0 0 8px var(--accent);
    animation: statusPulse 2s infinite;
}

@keyframes statusPulse {
    0%, 100% { opacity: 0.4; }
    50% { opacity: 1; }
}

.portal-form .form-group {
    margin-bottom: 18px;
    display: flex;
    flex-direction: column;
    gap: 6px;
}

.portal-form label {
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    color: var(--text-secondary);
}

.portal-form input, .portal-form select {
    background-color: #090909;
    border: 1px solid var(--surface-border);
    color: var(--text-primary);
    padding: 12px 14px;
    font-family: var(--font-body);
    font-size: 0.9rem;
    outline: none;
    transition: border-color 0.2s ease;
}

.portal-form input:focus, .portal-form select:focus {
    border-color: var(--accent);
}

.modal-submit-btn {
    width: 100%;
    margin-top: 10px;
    text-align: center;
    cursor: pointer;
}

.form-feedback {
    text-align: center;
    padding: 20px 0;
}

.form-feedback.hidden {
    display: none;
}

.feedback-icon {
    font-size: 2rem;
    color: var(--accent);
    margin-bottom: 10px;
}

/* Animations */
.fade-in {
    animation: fadeIn 1.5s cubic-bezier(0.22, 1, 0.36, 1) forwards;
}

.fade-in-up {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 1.2s cubic-bezier(0.22, 1, 0.36, 1), transform 1.2s cubic-bezier(0.22, 1, 0.36, 1);
}

.fade-in-up.visible {
    opacity: 1;
    transform: translateY(0);
}

.delay-1 { transition-delay: 0.2s; }

@keyframes fadeIn {
    0% { opacity: 0; }
    100% { opacity: 1; }
}

/* Community Section & Live Signal Ticker */
.community-section {
    background-color: #070707;
    border-top: 1px solid var(--surface-border);
    padding: 120px 0;
}

.signal-ticker-box {
    background-color: #0d0d0d;
    border: 1px solid var(--surface-border);
    border-radius: 4px;
    margin-bottom: 60px;
    overflow: hidden;
}

.ticker-header {
    background-color: #121212;
    border-bottom: 1px solid var(--surface-border);
    padding: 12px 20px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.ticker-live-tag {
    font-size: 0.72rem;
    font-weight: 600;
    letter-spacing: 0.1em;
    color: var(--text-primary);
    display: flex;
    align-items: center;
    gap: 8px;
}

.pulse-red {
    width: 8px;
    height: 8px;
    background-color: #ff4d4f;
    border-radius: 50%;
    box-shadow: 0 0 8px #ff4d4f;
    animation: pulseRed 1.8s infinite;
}

@keyframes pulseRed {
    0%, 100% { opacity: 0.3; transform: scale(0.9); }
    50% { opacity: 1; transform: scale(1.2); }
}

.ticker-meta {
    font-size: 0.72rem;
    color: var(--text-secondary);
    letter-spacing: 0.05em;
}

.ticker-feed {
    padding: 15px 20px;
    display: flex;
    flex-direction: column;
    gap: 12px;
    font-family: 'Inter', monospace, sans-serif;
}

.ticker-item {
    display: flex;
    align-items: center;
    gap: 15px;
    font-size: 0.85rem;
    padding: 10px 14px;
    background-color: #080808;
    border: 1px solid rgba(255, 255, 255, 0.03);
    border-radius: 3px;
    flex-wrap: wrap;
}

.t-time {
    color: #666;
    font-size: 0.75rem;
}

.t-bot {
    color: var(--accent);
    font-weight: 500;
    font-size: 0.8rem;
}

.t-sym {
    color: var(--text-primary);
    font-weight: 600;
}

.t-detail {
    color: var(--text-secondary);
    font-size: 0.82rem;
    margin-left: auto;
}

/* Membership Tiers (Whop & Discord Cards) */
.tiers-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 30px;
    align-items: stretch;
}

.tier-card {
    background-color: var(--surface-color);
    border: 1px solid var(--surface-border);
    padding: 40px 30px;
    display: flex;
    flex-direction: column;
    position: relative;
    border-radius: 4px;
    transition: transform 0.35s ease, border-color 0.35s ease, box-shadow 0.35s ease;
}

.tier-card:hover {
    transform: translateY(-5px);
    border-color: rgba(181, 154, 109, 0.4);
    box-shadow: 0 15px 35px rgba(0, 0, 0, 0.6);
}

.tier-card.featured {
    border-color: var(--accent);
    background-color: #141414;
    box-shadow: 0 0 30px rgba(181, 154, 109, 0.1);
}

.tier-badge {
    font-size: 0.7rem;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--text-secondary);
    margin-bottom: 12px;
}

.featured-badge {
    color: var(--accent);
    font-weight: 600;
}

.tier-name {
    font-size: 1.8rem;
    color: var(--text-primary);
    margin-bottom: 15px;
}

.tier-price {
    font-family: var(--font-heading);
    font-size: 3rem;
    color: var(--accent);
    line-height: 1;
    margin-bottom: 15px;
}

.tier-price span {
    font-family: var(--font-body);
    font-size: 0.85rem;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.tier-desc {
    font-size: 0.9rem;
    color: var(--text-secondary);
    margin-bottom: 30px;
    font-weight: 300;
    line-height: 1.6;
}

.tier-features {
    list-style: none;
    margin-bottom: 40px;
    flex-grow: 1;
}

.tier-features li {
    font-size: 0.88rem;
    color: var(--text-primary);
    margin-bottom: 12px;
    display: flex;
    align-items: center;
    gap: 8px;
}

.tier-btn {
    display: block;
    width: 100%;
    padding: 14px 20px;
    text-align: center;
    text-decoration: none;
    font-size: 0.85rem;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    border-radius: 2px;
    transition: all 0.3s ease;
    cursor: pointer;
}

.tier-btn.primary {
    background-color: var(--accent);
    color: var(--bg-color);
    border: 1px solid var(--accent);
    font-weight: 600;
}

.tier-btn.primary:hover {
    background-color: var(--accent-hover);
    border-color: var(--accent-hover);
}

.tier-btn.secondary {
    background-color: transparent;
    color: var(--text-primary);
    border: 1px solid var(--surface-border);
}

.tier-btn.secondary:hover {
    border-color: var(--accent);
    color: var(--accent);
}

/* Responsive */
@media (max-width: 900px) {
    .split-layout {
        grid-template-columns: 1fr;
        gap: 50px;
    }
    
    .title {
        font-size: 3.5rem;
    }
}

@media (max-width: 768px) {
    .nav-links {
        display: none; /* Simple mobile hide for now */
    }
    
    .systems-grid {
        grid-template-columns: 1fr;
    }
    
    .footer-top, .footer-bottom {
        flex-direction: column;
        align-items: flex-start;
        gap: 20px;
    }
}