:root {
    --bg-deep: #ffffff;
    --bg-surface: #f8fafc; /* slate-50 */
    --bg-panel: #f1f5f9; /* slate-100 */
    --bg-card: #ffffff;
    --text-main: #0f172a; /* slate-900 */
    --text-dim: #64748b; /* slate-500 */
    --primary: #3b82f6; /* blue-500 */
    --primary-dim: #2563eb; /* blue-600 */
    --tertiary: #0ea5e9; /* sky-500 */
    --error: #ef4444; /* red-500 */
    --outline: #e2e8f0; /* slate-200 */
    
    --font-display: 'Space Grotesk', sans-serif;
    --font-body: 'Inter', sans-serif;
    
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 16px;
    --transition-fast: 0.2s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-smooth: 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

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

body {
    background-color: var(--bg-deep);
    color: var(--text-main);
    font-family: var(--font-body);
    line-height: 1.6;
    overflow-x: hidden;
}

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

/* Grid Overlay */
.grid-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-image: 
        linear-gradient(var(--outline) 1px, transparent 1px),
        linear-gradient(90deg, var(--outline) 1px, transparent 1px);
    background-size: 60px 60px;
    opacity: 0.2;
    pointer-events: none;
    z-index: 0;
}

/* Typography */
h1, h2, h3 {
    font-family: var(--font-display);
    font-weight: 700;
}

h1 { font-size: 2.75rem; line-height: 1.15; margin-bottom: 1.25rem; }
h2 { font-size: 2rem; margin-bottom: 1rem; }
h3 { font-size: 1.15rem; margin-bottom: 0.6rem; }

.gradient-text {
    background: linear-gradient(90deg, var(--primary), var(--primary-dim));
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
}

.badge {
    display: inline-block;
    padding: 0.25rem 0.75rem;
    background: rgba(135, 173, 255, 0.1);
    color: var(--primary);
    border: 1px solid rgba(135, 173, 255, 0.2);
    border-radius: 100px;
    font-size: 0.7rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: 0.75rem;
}

.badge-error {
    background: rgba(255, 113, 108, 0.1);
    color: var(--error);
    border-color: rgba(255, 113, 108, 0.2);
}

/* Navbar */
.navbar {
    padding: 1rem 0;
    position: sticky;
    top: 0;
    background: rgba(255, 255, 255, 0.85);
    backdrop-filter: blur(12px);
    z-index: 100;
    border-bottom: 1px solid var(--outline);
}

.navbar .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    font-size: 1.25rem;
    font-family: var(--font-display);
    font-weight: 900;
    letter-spacing: -0.05em;
    cursor: pointer;
}

.icon-grad-blue {
    perspective: 1000px;
    background: linear-gradient(135deg, #3b82f6, #2563eb);
    padding: 8px;
    border-radius: 8px;
    color: white;
    box-shadow: 0 4px 12px rgba(37, 99, 235, 0.2);
    display: flex;
    align-items: center;
    justify-content: center;
}

.logo-text {
    font-family: var(--font-display);
    font-weight: 900;
}

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

.nav-links a:not(.btn) {
    color: var(--text-dim);
    text-decoration: none;
    font-size: 0.85rem;
    font-weight: 600;
    transition: var(--transition-fast);
}

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

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0.6rem 1.5rem;
    border-radius: var(--radius-sm);
    text-decoration: none;
    font-weight: 600;
    font-size: 0.9rem;
    transition: var(--transition-smooth);
    cursor: pointer;
    border: none;
}

.btn svg, .github-link svg {
    width: 20px !important;
    height: 20px !important;
    flex-shrink: 0;
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary), var(--primary-dim));
    color: #ffffff !important;
    box-shadow: 0 10px 25px rgba(37, 99, 235, 0.3);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 20px rgba(37, 99, 235, 0.25);
    opacity: 0.95;
}

.btn-secondary {
    background: #ffffff;
    color: var(--text-main);
    border: 1px solid var(--outline);
    box-shadow: 0 1px 2px rgba(0, 0, 0, 0.05);
}

.btn-secondary:hover {
    background: var(--bg-surface);
    border-color: var(--text-dim);
}

.btn-lg {
    padding: 1rem 2rem;
    font-size: 1rem;
}

/* Hero Section */
.hero {
    padding: 4rem 0 2rem;
    background-image: 
        radial-gradient(circle at top right, rgba(59, 130, 246, 0.05), transparent 40%),
        radial-gradient(circle at bottom left, rgba(59, 130, 246, 0.03), transparent 40%);
    position: relative;
}

.hero .container {
    display: grid;
    grid-template-columns: 1.2fr 1fr;
    gap: 2rem;
    align-items: center;
}

.hero-content p {
    font-size: 1.1rem;
    color: var(--text-dim);
    margin-bottom: 1.5rem;
    max-width: 500px;
}

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

.hero-preview {
    position: relative;
    z-index: 1;
}

.app-window {
    background: #ffffff;
    border: 1px solid var(--outline);
    border-radius: 24px;
    box-shadow: 0 40px 100px rgba(15, 23, 42, 0.1), 0 0 0 10px rgba(59, 130, 246, 0.05);
    display: flex;
    overflow: hidden;
    width: 100%;
    max-width: 800px;
    height: 520px;
    transform: perspective(2000px) rotateY(-10deg) rotateX(5deg);
    transition: var(--transition-smooth);
}

.app-window:hover {
    transform: perspective(2000px) rotateY(-2deg) rotateX(1deg);
}

.app-sidebar {
    width: 240px;
    background: #ffffff;
    border-right: 1px solid var(--outline);
    padding: 2rem 1.5rem;
    display: flex;
    flex-direction: column;
}

.app-sidebar .logo {
    margin-bottom: 0.25rem;
}

.sidebar-sub {
    font-size: 10px;
    font-weight: 800;
    color: #94a3b8;
    letter-spacing: 0.1em;
    padding-left: 2.75rem;
    margin-bottom: 2rem;
}

.new-instance-btn {
    background: linear-gradient(135deg, #3b82f6, #2563eb);
    color: white;
    padding: 0.75rem;
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    font-size: 13px;
    font-weight: 700;
    margin-bottom: 2rem;
    box-shadow: 0 10px 20px rgba(37, 99, 235, 0.2);
}

.sidebar-nav {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
    flex: 1;
}

.nav-item {
    display: flex;
    align-items: center;
    gap: 1rem;
    padding: 0.75rem 1rem;
    border-radius: 16px;
    font-size: 14px;
    font-weight: 700;
    color: #64748b;
    transition: var(--transition-fast);
}

.nav-item.active {
    background: #eff6ff;
    color: #2563eb;
    box-shadow: 0 4px 6px -1px rgba(37, 99, 235, 0.05);
    border: 1px solid rgba(191, 219, 254, 0.5);
}

.sidebar-user {
    margin-top: auto;
    padding: 1rem;
    background: #f8fafc;
    border-radius: 20px;
    display: flex;
    align-items: center;
    gap: 0.75rem;
    border: 1px solid var(--outline);
}

.user-avatar {
    width: 36px;
    height: 36px;
    background: #ffedd5;
    color: #ea580c;
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.user-info .user-name {
    font-size: 11px;
    font-weight: 800;
    color: #0f172a;
}

.user-info .user-role {
    font-size: 9px;
    font-weight: 600;
    color: #94a3b8;
}

.app-main {
    flex: 1;
    background: linear-gradient(180deg, #f8fafc, #ffffff);
    padding: 2.5rem;
    display: flex;
    flex-direction: column;
}

.main-header h2 {
    font-size: 24px;
    font-weight: 950;
    color: #0f172a;
    letter-spacing: -0.02em;
    margin-bottom: 2px;
}

.main-header p {
    font-size: 13px;
    font-weight: 600;
    color: #64748b;
    margin-bottom: 2.5rem;
}

.metrics-stack {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.real-metric-card {
    background: #ffffff;
    border-radius: 24px;
    border: 1px solid var(--outline);
    padding: 1.5rem;
    box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.05);
    position: relative;
    overflow: hidden;
}

.real-metric-card .card-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: 1rem;
}

.circle-icon {
    width: 48px;
    height: 48px;
    border-radius: 16px;
    color: white;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 8px 16px rgba(0, 0, 0, 0.1);
}

.circle-icon.blue { background: linear-gradient(135deg, #3b82f6, #2563eb); }
.circle-icon.emerald { background: linear-gradient(135deg, #10b981, #059669); }
.circle-icon.rose { background: linear-gradient(135deg, #f43f5e, #e11d48); }

.corner-lab {
    font-size: 9px;
    font-weight: 900;
    color: #94a3b8;
    letter-spacing: 0.1em;
}

.card-val {
    font-size: 32px;
    font-weight: 950;
    color: #0f172a;
    letter-spacing: -0.05em;
    line-height: 1;
    margin-bottom: 4px;
}

.card-lab {
    font-size: 10px;
    font-weight: 800;
    color: #94a3b8;
    letter-spacing: 0.05em;
}

/* Unified CTA and Deploy Section */
.cta {
    padding: 3rem 0;
    background: #ffffff;
}

.cta-card {
    background: #ffffff;
    border: 1px solid var(--outline);
    border-radius: 24px;
    padding: 3rem 2rem;
    text-align: center;
    box-shadow: 0 40px 100px rgba(15, 23, 42, 0.08);
    position: relative;
    overflow: hidden;
}

.cta-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: radial-gradient(circle at 50% 0%, rgba(59, 130, 246, 0.05), transparent 70%);
    pointer-events: none;
}

.cta-content h2 {
    font-size: 2.5rem;
    margin-bottom: 1rem;
    letter-spacing: -0.05em;
}

.cta-content p {
    color: var(--text-dim);
    font-size: 1.1rem;
    margin-bottom: 2rem;
    max-width: 540px;
    margin-left: auto;
    margin-right: auto;
}

.deploy-box {
    background: var(--bg-surface);
    border: 1px solid var(--outline);
    border-radius: 24px;
    padding: 2rem;
    max-width: 800px;
    margin: 0 auto;
}

.deploy-label {
    font-size: 10px;
    font-weight: 800;
    color: var(--primary);
    letter-spacing: 0.1em;
    margin-bottom: 0.75rem;
}

.deploy-code-box {
    background: #0f172a;
    border-radius: 16px;
    padding: 1.25rem 2rem;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1.5rem;
    color: #e2e8f0;
    font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", "Courier New", monospace;
    font-size: 14px;
    border: 1px solid rgba(255, 255, 255, 0.1);
    box-shadow: 0 8px 16px rgba(0, 0, 0, 0.2), inset 0 2px 4px rgba(0, 0, 0, 0.3);
}

.deploy-code-box pre {
    overflow-x: auto;
    white-space: nowrap;
    scrollbar-width: none;
    -ms-overflow-style: none;
    padding-bottom: 1px;
}

.deploy-code-box pre::-webkit-scrollbar {
    display: none;
}

.copy-button {
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.1);
    color: white;
    width: 40px;
    min-width: 40px;
    height: 40px;
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: var(--transition-fast);
}

.copy-button:hover {
    background: rgba(255, 255, 255, 0.15);
    transform: scale(1.05);
}

.copy-button:active {
    transform: scale(0.95);
}

/* Features Section */
.features {
    padding: 4rem 0;
    background: var(--bg-surface);
}

.section-header {
    text-align: center;
    margin-bottom: 2.5rem;
}

.section-header h2 { margin-bottom: 1rem; }
.section-header p { color: var(--text-dim); font-size: 1.1rem; }

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

.feature-card {
    background: var(--bg-panel);
    padding: 2.5rem 1.75rem;
    border-radius: var(--radius-md);
    transition: var(--transition-smooth);
    border: 1px solid transparent;
}

.feature-card:hover {
    border-color: var(--primary);
    transform: translateY(-10px);
}

.feature-card i {
    width: 48px;
    height: 48px;
    color: var(--primary);
    margin-bottom: 1rem;
}

.feature-card h3 { margin-bottom: 1rem; }
.feature-card p { color: var(--text-dim); font-size: 0.95rem; }

/* Security Section */
.security {
    padding: 4rem 0;
}

.security-card {
    display: grid;
    grid-template-columns: 1.5fr 1fr;
    align-items: center;
    padding: 2rem;
    gap: 2rem;
}

.security-list {
    list-style: none;
    margin-top: 2rem;
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.security-list li {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.security-list i {
    color: var(--tertiary);
}

.security-visual {
    display: flex;
    justify-content: center;
}

.shield-icon {
    width: 200px;
    height: 200px;
    color: var(--primary);
    opacity: 0.1;
filter:drop-shadow(0 0 20px var(--primary));
}

/* FAQ Section */
.faq {
    padding: 4rem 0;
    border-top: 1px solid var(--outline);
}

.faq .section-title {
    font-size: 2.5rem;
    margin-bottom: 4rem;
}

.faq-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    text-align: left;
}

.faq-item h3 {
    font-family: var(--font-display);
    font-size: 1.25rem;
    margin-bottom: 1rem;
    color: var(--text-main);
}

.faq-item p {
    color: var(--text-dim);
    line-height: 1.6;
}

.faq-item a {
    color: var(--primary);
    text-decoration: none;
    font-weight: 500;
}

.faq-item a:hover {
    text-decoration: underline;
}

/* Consolidated responsive styles below */


/* Footer */
footer {
    padding: 6rem 0 3rem;
    border-top: 1px solid var(--outline);
}

.footer-top {
    margin-bottom: 4rem;
    text-align: center;
}

.footer-top .logo { justify-content: center; margin-bottom: 1rem; }
.footer-top p { color: var(--text-dim); }

.footer-bottom {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-top: 2rem;
    border-top: 1px solid rgba(72, 72, 72, 0.3);
}

.footer-bottom p { font-size: 0.85rem; color: var(--text-dim); }
.footer-bottom a { color: var(--text-main); text-decoration: none; }

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

.footer-links a {
    font-size: 0.85rem;
    color: var(--text-dim);
    text-decoration: none;
    transition: var(--transition-fast);
}

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

/* Responsive */
@media (max-width: 992px) {
    h1 { font-size: 2.75rem; }
    .hero .container { grid-template-columns: 1fr; text-align: center; gap: 3rem; }
    .hero-content { display: flex; flex-direction: column; align-items: center; }
    .hero-content p { margin: 0 auto 2.5rem; }
    .hero-actions { justify-content: center; }
    .app-window { transform: none; margin: 0 auto; }
    .app-window:hover { transform: none; }
    .security-card { grid-template-columns: 1fr; padding: 2.5rem; text-align: center; }
    .security-visual { order: -1; margin-bottom: 1rem; }
    .security-list { align-items: center; }
    .cta { padding: 5rem 0; }
    .cta-card { padding: 3rem 2rem; border-radius: 24px; }
    .cta-content h2 { font-size: 2.25rem; }
    .cta-content p { font-size: 1.1rem; }
}

@media (max-width: 768px) {
    h1 { font-size: 2rem; line-height: 1.2; margin-bottom: 1rem; }
    h2 { font-size: 1.75rem; }
    .container { padding: 0 1rem; }
    
    .nav-links a:not(.btn) { display: none; }
    .nav-links { gap: 1rem; }
    
    .hero { padding: 2rem 0; }
    .hero-actions { flex-direction: column; width: 100%; gap: 1rem; align-items: stretch; }
    .hero-actions .btn { width: 100%; justify-content: center; display: flex; align-items: center; }
    
    .app-window { flex-direction: column; height: auto; border-radius: 16px; margin-top: 2rem; width: 100%; max-width: 100%; box-sizing: border-box; }
    .app-sidebar { width: 100%; border-right: none; border-bottom: 1px solid var(--outline); padding: 1.25rem; flex-direction: row; flex-wrap: wrap; justify-content: space-between; align-items: center; gap: 1rem; }
    .sidebar-sub { display: none; }
    .new-instance-btn { margin-bottom: 0; order: 3; width: 100%; border-radius: 8px; }
    .sidebar-nav { display: none; }
    .sidebar-user { margin-top: 0; order: 2; padding: 0; background: transparent; border: none; }
    .app-main { padding: 1.25rem; }
    .main-header { text-align: center; }
    .main-header p { margin-bottom: 1.5rem; }
    .metrics-stack { gap: 1rem; }
    .real-metric-card { padding: 1.25rem; }
    
    .features { padding: 3rem 0; }
    .feature-grid { grid-template-columns: 1fr; gap: 1rem; }
    .feature-card { padding: 2rem 1.5rem; }
    
    .security { padding: 3rem 0; }
    .security-card { padding: 1.5rem; gap: 1.5rem; }
    .security-list li { text-align: left; }
    
    .cta { padding: 3rem 0; }
    .cta-card { padding: 2rem 1rem; border-radius: 16px; }
    .deploy-box { padding: 1rem; border-radius: 16px; margin-top: 1rem; }
    .deploy-code-box { font-size: 13px; padding: 1.25rem; flex-direction: column; align-items: stretch; gap: 1.25rem; }
    .deploy-code-box pre { width: 100%; text-align: left; overflow-x: auto; padding-bottom: 8px; }
    .copy-button { align-self: flex-end; }
    
    .faq { padding: 3rem 0; }
    .faq .section-title { font-size: 2rem; margin-bottom: 2rem; }
    
    footer { padding: 4rem 0 2rem; }
    .footer-bottom { flex-direction: column; gap: 1.5rem; text-align: center; }
    .footer-links { flex-wrap: wrap; justify-content: center; gap: 1.25rem; }
}