/* Netaxis - Premium Enterprise Website Styles */

:root {
    /* Primary Colors */
    --navy-dark: #0a1628;
    --navy: #0f2744;
    --navy-light: #1a3a5c;

    /* Accent Colors */
    --accent-blue: #3b82f6;
    --accent-cyan: #06b6d4;
    --accent-gradient: linear-gradient(135deg, #3b82f6 0%, #06b6d4 100%);

    /* Neutrals */
    --white: #ffffff;
    --gray-50: #f8fafc;
    --gray-100: #f1f5f9;
    --gray-200: #e2e8f0;
    --gray-300: #cbd5e1;
    --gray-400: #94a3b8;
    --gray-500: #64748b;
    --gray-600: #475569;
    --gray-700: #334155;
    --gray-800: #1e293b;
    --gray-900: #0f172a;

    /* Typography */
    --font-primary: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    --font-display: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;

    /* Spacing */
    --section-padding: 120px;
    --container-max: 1280px;

    /* Transitions */
    --transition-fast: 0.15s ease;
    --transition-base: 0.3s ease;
    --transition-slow: 0.5s ease;
}

/* Reset & Base */
*, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html {
    scroll-behavior: smooth;
    font-size: 16px;
}

body {
    font-family: var(--font-primary);
    font-size: 1rem;
    line-height: 1.6;
    color: var(--gray-700);
    background-color: var(--white);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

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

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

ul, ol {
    list-style: none;
}

/* Container */
.container {
    width: 100%;
    max-width: var(--container-max);
    margin: 0 auto;
    padding: 0 24px;
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-display);
    font-weight: 600;
    line-height: 1.2;
    color: var(--navy-dark);
}

h1 {
    font-size: clamp(2.5rem, 5vw, 4rem);
    font-weight: 700;
    letter-spacing: -0.02em;
}

h2 {
    font-size: clamp(2rem, 4vw, 3rem);
    letter-spacing: -0.01em;
}

h3 {
    font-size: clamp(1.5rem, 3vw, 2rem);
}

h4 {
    font-size: 1.25rem;
}

p {
    margin-bottom: 1rem;
}

.text-gradient {
    background: var(--accent-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.text-large {
    font-size: 1.25rem;
    line-height: 1.7;
    color: var(--gray-600);
}

.text-small {
    font-size: 0.875rem;
}

.text-muted {
    color: var(--gray-500);
}

.text-white {
    color: var(--white);
}

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

/* Section Styles */
.section {
    padding: var(--section-padding) 0;
}

.section-dark {
    background-color: var(--navy-dark);
    color: var(--white);
}

.section-dark h1,
.section-dark h2,
.section-dark h3,
.section-dark h4 {
    color: var(--white);
}

.section-dark p {
    color: var(--gray-300);
}

.section-light {
    background-color: var(--gray-50);
}

.section-header {
    text-align: center;
    max-width: 800px;
    margin: 0 auto 64px;
}

.section-label {
    display: inline-block;
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--accent-blue);
    margin-bottom: 16px;
}

.section-dark .section-label {
    color: var(--accent-cyan);
}

/* Header / Navigation */
.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: rgba(10, 22, 40, 0.95);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    transition: all var(--transition-base);
}

.header-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 80px;
}

.logo {
    display: flex;
    align-items: center;
}

.logo img {
    height: 55px;
    width: auto;
}

.nav {
    display: flex;
    align-items: center;
    gap: 40px;
}

.nav-links {
    display: flex;
    gap: 32px;
}

.nav-link {
    font-size: 0.9375rem;
    font-weight: 500;
    color: var(--gray-300);
    transition: color var(--transition-fast);
}

.nav-link:hover {
    color: var(--white);
}

.nav-link.active {
    color: var(--white);
}

.nav-cta {
    display: flex;
    gap: 12px;
}

.mobile-menu-btn {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 8px;
}

.mobile-menu-btn span {
    width: 24px;
    height: 2px;
    background: var(--white);
    border-radius: 2px;
    transition: all var(--transition-base);
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 14px 28px;
    font-family: var(--font-primary);
    font-size: 0.9375rem;
    font-weight: 600;
    border-radius: 8px;
    border: none;
    cursor: pointer;
    transition: all var(--transition-base);
    white-space: nowrap;
}

.btn-primary {
    background: var(--accent-gradient);
    color: var(--white);
    box-shadow: 0 4px 14px rgba(59, 130, 246, 0.4);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(59, 130, 246, 0.5);
}

.btn-secondary {
    background: rgba(255, 255, 255, 0.1);
    color: var(--white);
    border: 1px solid rgba(255, 255, 255, 0.2);
}

.btn-secondary:hover {
    background: rgba(255, 255, 255, 0.15);
    border-color: rgba(255, 255, 255, 0.3);
}

.btn-outline {
    background: transparent;
    color: var(--navy-dark);
    border: 2px solid var(--navy-dark);
}

.btn-outline:hover {
    background: var(--navy-dark);
    color: var(--white);
}

.btn-white {
    background: var(--white);
    color: var(--navy-dark);
}

.btn-white:hover {
    background: var(--gray-100);
    transform: translateY(-2px);
}

.btn-large {
    padding: 18px 36px;
    font-size: 1rem;
}

.btn-small {
    padding: 10px 20px;
    font-size: 0.875rem;
}

/* Hero Section */
.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    background: linear-gradient(135deg, var(--navy-dark) 0%, var(--navy) 50%, var(--navy-light) 100%);
    overflow: hidden;
    padding-top: 80px;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background:
        radial-gradient(ellipse 80% 50% at 50% -20%, rgba(59, 130, 246, 0.15) 0%, transparent 50%),
        radial-gradient(ellipse 60% 40% at 80% 60%, rgba(6, 182, 212, 0.1) 0%, transparent 50%);
    pointer-events: none;
}

.hero-grid {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-image:
        linear-gradient(rgba(59, 130, 246, 0.03) 1px, transparent 1px),
        linear-gradient(90deg, rgba(59, 130, 246, 0.03) 1px, transparent 1px);
    background-size: 60px 60px;
    pointer-events: none;
}

.hero-content {
    position: relative;
    z-index: 1;
    max-width: 900px;
}

.hero-label {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 8px 16px;
    background: rgba(59, 130, 246, 0.1);
    border: 1px solid rgba(59, 130, 246, 0.2);
    border-radius: 100px;
    font-size: 0.8125rem;
    font-weight: 500;
    color: var(--accent-cyan);
    margin-bottom: 32px;
}

.hero h1 {
    color: var(--white);
    margin-bottom: 24px;
}

.hero-description {
    font-size: 1.25rem;
    line-height: 1.7;
    color: var(--gray-300);
    max-width: 700px;
    margin-bottom: 40px;
}

.hero-cta {
    display: flex;
    flex-wrap: wrap;
    gap: 16px;
    margin-bottom: 64px;
}

.hero-stats {
    display: flex;
    gap: 48px;
    padding-top: 48px;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.stat {
    text-align: left;
}

.stat-value {
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--white);
    line-height: 1;
    margin-bottom: 8px;
}

.stat-label {
    font-size: 0.875rem;
    color: var(--gray-400);
}

/* Feature Cards */
.features-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 32px;
}

.feature-card {
    padding: 40px;
    background: var(--white);
    border-radius: 16px;
    border: 1px solid var(--gray-200);
    transition: all var(--transition-base);
}

.feature-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.08);
    border-color: transparent;
}

.feature-icon {
    width: 56px;
    height: 56px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--accent-gradient);
    border-radius: 12px;
    margin-bottom: 24px;
}

.feature-icon svg {
    width: 28px;
    height: 28px;
    color: var(--white);
}

.feature-card h3 {
    margin-bottom: 12px;
}

.feature-card p {
    color: var(--gray-600);
    margin-bottom: 0;
}

/* Dark Feature Cards */
.section-dark .feature-card {
    background: rgba(255, 255, 255, 0.03);
    border-color: rgba(255, 255, 255, 0.1);
}

.section-dark .feature-card:hover {
    background: rgba(255, 255, 255, 0.05);
    border-color: rgba(59, 130, 246, 0.3);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.3);
}

.section-dark .feature-card h3 {
    color: var(--white);
}

.section-dark .feature-card p {
    color: var(--gray-400);
}

/* Solutions Section */
.solutions-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 24px;
}

.solution-card {
    position: relative;
    padding: 48px;
    background: linear-gradient(135deg, rgba(255, 255, 255, 0.05) 0%, rgba(255, 255, 255, 0.02) 100%);
    border-radius: 20px;
    border: 1px solid rgba(255, 255, 255, 0.1);
    overflow: hidden;
    transition: all var(--transition-base);
}

.solution-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: var(--accent-gradient);
    opacity: 0;
    transition: opacity var(--transition-base);
}

.solution-card:hover {
    border-color: rgba(59, 130, 246, 0.3);
    transform: translateY(-4px);
}

.solution-card:hover::before {
    opacity: 1;
}

.solution-badge {
    display: inline-block;
    padding: 6px 12px;
    background: rgba(59, 130, 246, 0.1);
    border-radius: 6px;
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--accent-cyan);
    margin-bottom: 20px;
}

.solution-card h3 {
    color: var(--white);
    margin-bottom: 16px;
}

.solution-card p {
    color: var(--gray-400);
    margin-bottom: 24px;
}

.solution-features {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
}

.solution-feature {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 0.875rem;
    color: var(--gray-300);
}

.solution-feature svg {
    width: 16px;
    height: 16px;
    color: var(--accent-cyan);
}

.solution-card-featured {
    background: linear-gradient(135deg, rgba(59, 130, 246, 0.18) 0%, rgba(34, 211, 238, 0.08) 100%);
    border: 1px solid rgba(59, 130, 246, 0.45);
    box-shadow: 0 20px 50px -20px rgba(59, 130, 246, 0.5);
}

.solution-card-featured::before {
    opacity: 1;
}

.solution-card-featured .solution-badge {
    background: var(--accent-gradient);
    color: var(--white);
}

.solution-card-featured p strong {
    color: var(--white);
    font-weight: 600;
}

.about-mission-body p {
    font-size: 1.0625rem;
    line-height: 1.8;
    color: var(--gray-600);
    margin-bottom: 1.5rem;
}

.about-mission-body p:last-child {
    margin-bottom: 0;
}

/* Why Choose Section */
.why-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 32px;
}

.why-item {
    text-align: center;
    padding: 32px 24px;
}

.why-icon {
    width: 72px;
    height: 72px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 24px;
    background: rgba(59, 130, 246, 0.1);
    border-radius: 50%;
}

.why-icon svg {
    width: 32px;
    height: 32px;
    color: var(--accent-blue);
}

.why-item h4 {
    margin-bottom: 12px;
}

.why-item p {
    font-size: 0.9375rem;
    color: var(--gray-600);
    margin-bottom: 0;
}

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

.security-content h2 {
    margin-bottom: 24px;
}

.security-content > p {
    font-size: 1.125rem;
    color: var(--gray-600);
    margin-bottom: 32px;
}

.security-list {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.security-item {
    display: flex;
    gap: 16px;
}

.security-check {
    flex-shrink: 0;
    width: 24px;
    height: 24px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--accent-gradient);
    border-radius: 50%;
}

.security-check svg {
    width: 14px;
    height: 14px;
    color: var(--white);
}

.security-item-content h4 {
    font-size: 1rem;
    margin-bottom: 4px;
}

.security-item-content p {
    font-size: 0.9375rem;
    color: var(--gray-600);
    margin-bottom: 0;
}

.security-visual {
    position: relative;
    padding: 48px;
    background: linear-gradient(135deg, var(--navy-dark) 0%, var(--navy) 100%);
    border-radius: 24px;
    overflow: hidden;
}

.security-visual::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background:
        radial-gradient(circle at 30% 30%, rgba(59, 130, 246, 0.2) 0%, transparent 50%),
        radial-gradient(circle at 70% 70%, rgba(6, 182, 212, 0.15) 0%, transparent 50%);
    pointer-events: none;
}

.security-badge-large {
    position: relative;
    z-index: 1;
    text-align: center;
    color: var(--white);
}

.security-badge-large svg {
    width: 80px;
    height: 80px;
    margin: 0 auto 24px;
    color: var(--accent-cyan);
}

.security-badge-large h3 {
    color: var(--white);
    margin-bottom: 16px;
}

.security-badge-large p {
    color: var(--gray-400);
}

/* CTA Section */
.cta-section {
    position: relative;
    padding: 100px 0;
    background: linear-gradient(135deg, var(--navy-dark) 0%, var(--navy) 100%);
    overflow: hidden;
}

.cta-section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background:
        radial-gradient(ellipse 50% 80% at 20% 50%, rgba(59, 130, 246, 0.15) 0%, transparent 50%),
        radial-gradient(ellipse 50% 80% at 80% 50%, rgba(6, 182, 212, 0.1) 0%, transparent 50%);
    pointer-events: none;
}

.cta-content {
    position: relative;
    z-index: 1;
    text-align: center;
    max-width: 700px;
    margin: 0 auto;
}

.cta-content h2 {
    color: var(--white);
    margin-bottom: 20px;
}

.cta-content p {
    font-size: 1.25rem;
    color: var(--gray-300);
    margin-bottom: 40px;
}

.cta-buttons {
    display: flex;
    justify-content: center;
    gap: 16px;
    flex-wrap: wrap;
}

/* Contact Page */
.contact-section {
    padding-top: 160px;
}

.contact-grid {
    display: grid;
    grid-template-columns: 1fr 1.2fr;
    gap: 80px;
}

.contact-info h1 {
    margin-bottom: 24px;
}

.contact-info > p {
    font-size: 1.125rem;
    color: var(--gray-600);
    margin-bottom: 40px;
}

.contact-details {
    display: flex;
    flex-direction: column;
    gap: 24px;
    margin-bottom: 40px;
}

.contact-detail {
    display: flex;
    gap: 16px;
}

.contact-detail-icon {
    flex-shrink: 0;
    width: 48px;
    height: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--gray-100);
    border-radius: 12px;
}

.contact-detail-icon svg {
    width: 24px;
    height: 24px;
    color: var(--accent-blue);
}

.contact-detail-content h4 {
    font-size: 0.875rem;
    color: var(--gray-500);
    font-weight: 500;
    margin-bottom: 4px;
}

.contact-detail-content p {
    font-size: 1rem;
    color: var(--navy-dark);
    font-weight: 500;
    margin-bottom: 0;
}

.contact-form-wrapper {
    padding: 48px;
    background: var(--white);
    border-radius: 24px;
    box-shadow: 0 25px 50px rgba(0, 0, 0, 0.08);
    border: 1px solid var(--gray-200);
}

.contact-form-wrapper h3 {
    margin-bottom: 32px;
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
}

.form-group {
    margin-bottom: 20px;
}

.form-group label {
    display: block;
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--gray-700);
    margin-bottom: 8px;
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 14px 16px;
    font-family: var(--font-primary);
    font-size: 1rem;
    color: var(--gray-800);
    background: var(--gray-50);
    border: 1px solid var(--gray-200);
    border-radius: 10px;
    transition: all var(--transition-fast);
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--accent-blue);
    background: var(--white);
    box-shadow: 0 0 0 4px rgba(59, 130, 246, 0.1);
}

.form-group textarea {
    min-height: 140px;
    resize: vertical;
}

.form-submit {
    margin-top: 12px;
}

.form-submit .btn {
    width: 100%;
}

/* Footer */
.footer {
    background: var(--navy-dark);
    color: var(--gray-400);
    padding: 80px 0 40px;
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: 60px;
    margin-bottom: 60px;
}

.footer-brand p {
    margin-top: 20px;
    font-size: 0.9375rem;
    line-height: 1.7;
}

.footer-column h4 {
    color: var(--white);
    font-size: 0.875rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: 24px;
}

.footer-links {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.footer-links a {
    font-size: 0.9375rem;
    color: var(--gray-400);
    transition: color var(--transition-fast);
}

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

.footer-bottom {
    padding-top: 40px;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 0.875rem;
}

.footer-legal {
    display: flex;
    gap: 24px;
}

.footer-legal a:hover {
    color: var(--white);
}

/* Gallery */
.gallery-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}

.gallery-item {
    position: relative;
    aspect-ratio: 4/3;
    border-radius: 16px;
    overflow: hidden;
    background: var(--gray-200);
    cursor: pointer;
}

.gallery-item img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform var(--transition-slow);
}

.gallery-item:hover img {
    transform: scale(1.05);
}

.gallery-overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(to top, rgba(10, 22, 40, 0.8) 0%, transparent 50%);
    opacity: 0;
    transition: opacity var(--transition-base);
    display: flex;
    align-items: flex-end;
    padding: 24px;
}

.gallery-item:hover .gallery-overlay {
    opacity: 1;
}

.gallery-overlay span {
    color: var(--white);
    font-weight: 500;
}

/* About Page */
.about-hero {
    padding-top: 160px;
    padding-bottom: 80px;
}

.about-content {
    max-width: 800px;
}

.about-content h1 {
    margin-bottom: 24px;
}

.about-content .text-large {
    margin-bottom: 0;
}

.values-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 32px;
}

.value-card {
    padding: 40px;
    background: var(--white);
    border-radius: 16px;
    border: 1px solid var(--gray-200);
    text-align: center;
}

.value-card h3 {
    margin-bottom: 12px;
}

.value-card p {
    color: var(--gray-600);
    margin-bottom: 0;
}

/* Mobile Navigation */
.mobile-nav {
    display: none;
    position: fixed;
    top: 80px;
    left: 0;
    right: 0;
    bottom: 0;
    background: var(--navy-dark);
    z-index: 999;
    padding: 40px 24px;
}

.mobile-nav.active {
    display: block;
}

.mobile-nav-links {
    display: flex;
    flex-direction: column;
    gap: 24px;
    margin-bottom: 40px;
}

.mobile-nav-links a {
    font-size: 1.25rem;
    color: var(--white);
}

.mobile-nav-cta {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

/* Responsive */
@media (max-width: 1024px) {
    :root {
        --section-padding: 80px;
    }

    .features-grid,
    .values-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .why-grid {
        grid-template-columns: repeat(2, 1fr);
    }

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

    .security-grid {
        grid-template-columns: 1fr;
        gap: 48px;
    }

    .security-visual {
        order: -1;
    }

    .contact-grid {
        grid-template-columns: 1fr;
        gap: 48px;
    }

    .footer-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 40px;
    }
}

@media (max-width: 768px) {
    :root {
        --section-padding: 60px;
    }

    .nav-links,
    .nav-cta {
        display: none;
    }

    .mobile-menu-btn {
        display: flex;
    }

    .hero-stats {
        flex-direction: column;
        gap: 24px;
    }

    .features-grid,
    .values-grid,
    .gallery-grid {
        grid-template-columns: 1fr;
    }

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

    .form-row {
        grid-template-columns: 1fr;
    }

    .footer-grid {
        grid-template-columns: 1fr;
        gap: 32px;
    }

    .footer-bottom {
        flex-direction: column;
        gap: 16px;
        text-align: center;
    }

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

    .hero-cta {
        flex-direction: column;
    }

    .hero-cta .btn {
        width: 100%;
    }

    .contact-form-wrapper {
        padding: 32px 24px;
    }
}

/* Animations */
@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.fade-in {
    animation: fadeIn 0.6s ease forwards;
}

.fade-in-delay-1 {
    animation-delay: 0.1s;
}

.fade-in-delay-2 {
    animation-delay: 0.2s;
}

.fade-in-delay-3 {
    animation-delay: 0.3s;
}

/* Utility Classes */
.mb-0 { margin-bottom: 0; }
.mb-4 { margin-bottom: 16px; }
.mb-8 { margin-bottom: 32px; }
.mt-8 { margin-top: 32px; }