/* ===================================
   Tao Web Services - Main Stylesheet
   Modern, Dark, Tech-focused Design
   =================================== */

:root {
    /* Colors */
    --bg-primary: #0a0a0b;
    --bg-secondary: #111113;
    --bg-tertiary: #18181b;
    --bg-card: #1a1a1d;
    --bg-card-hover: #222225;
    
    --text-primary: #fafafa;
    --text-secondary: #a1a1aa;
    --text-muted: #71717a;
    
    --accent-primary: #6366f1;
    --accent-secondary: #8b5cf6;
    --accent-gradient: linear-gradient(135deg, #6366f1 0%, #8b5cf6 50%, #a855f7 100%);
    
    --success: #22c55e;
    --border: rgba(255, 255, 255, 0.08);
    --border-light: rgba(255, 255, 255, 0.12);
    
    /* Typography */
    --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    --font-mono: 'JetBrains Mono', 'Fira Code', monospace;
    
    /* Spacing */
    --space-xs: 0.25rem;
    --space-sm: 0.5rem;
    --space-md: 1rem;
    --space-lg: 1.5rem;
    --space-xl: 2rem;
    --space-2xl: 3rem;
    --space-3xl: 4rem;
    --space-4xl: 6rem;
    
    /* Border Radius */
    --radius-sm: 6px;
    --radius-md: 10px;
    --radius-lg: 16px;
    --radius-xl: 24px;
    
    /* Transitions */
    --transition-fast: 150ms ease;
    --transition-base: 250ms ease;
    --transition-slow: 400ms ease;
}

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

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

body {
    font-family: var(--font-sans);
    font-size: 16px;
    line-height: 1.6;
    color: var(--text-primary);
    background: var(--bg-primary);
    overflow-x: hidden;
}

a {
    color: inherit;
    text-decoration: none;
}

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

ul {
    list-style: none;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--space-lg);
}

/* ===================================
   Navigation
   =================================== */
.nav {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    padding: var(--space-md) 0;
    background: rgba(10, 10, 11, 0.8);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--border);
    transition: var(--transition-base);
}

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

.nav-logo {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    font-weight: 600;
    font-size: 1.125rem;
    color: var(--text-primary);
}

.nav-logo-img {
    width: 32px;
    height: 32px;
    border-radius: var(--radius-sm);
}

.nav-menu {
    display: flex;
    align-items: center;
    gap: var(--space-xl);
}

.nav-link {
    font-size: 0.9rem;
    font-weight: 500;
    color: var(--text-secondary);
    transition: var(--transition-fast);
    position: relative;
}

.nav-link:hover,
.nav-link.active {
    color: var(--text-primary);
}

.nav-link.active::after {
    content: '';
    position: absolute;
    bottom: -6px;
    left: 0;
    right: 0;
    height: 2px;
    background: var(--accent-gradient);
    border-radius: 2px;
}

.nav-cta {
    padding: var(--space-sm) var(--space-md);
    background: var(--accent-gradient);
    border-radius: var(--radius-md);
    color: white !important;
}

.nav-cta::after {
    display: none !important;
}

.nav-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: var(--space-sm);
}

.nav-toggle span {
    width: 24px;
    height: 2px;
    background: var(--text-primary);
    border-radius: 2px;
    transition: var(--transition-fast);
}

/* ===================================
   Hero Section
   =================================== */
.hero {
    min-height: 100vh;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-4xl);
    align-items: center;
    padding: calc(80px + var(--space-4xl)) var(--space-lg) var(--space-4xl);
    max-width: 1400px;
    margin: 0 auto;
    position: relative;
}

.hero-bg {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: 
        radial-gradient(ellipse 80% 50% at 50% -20%, rgba(99, 102, 241, 0.15), transparent),
        radial-gradient(ellipse 60% 40% at 100% 0%, rgba(139, 92, 246, 0.1), transparent);
    pointer-events: none;
}

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

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: var(--space-sm);
    padding: var(--space-sm) var(--space-md);
    background: var(--bg-tertiary);
    border: 1px solid var(--border-light);
    border-radius: 100px;
    font-size: 0.85rem;
    color: var(--text-secondary);
    margin-bottom: var(--space-xl);
    animation: fadeInUp 0.6s ease;
}

.badge-dot {
    width: 8px;
    height: 8px;
    background: var(--success);
    border-radius: 50%;
    animation: pulse 2s infinite;
}

@keyframes pulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.5; }
}

.hero-title {
    font-size: clamp(2.5rem, 5vw, 4rem);
    font-weight: 700;
    line-height: 1.1;
    margin-bottom: var(--space-lg);
    animation: fadeInUp 0.6s ease 0.1s backwards;
}

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

.hero-subtitle {
    font-size: 1.125rem;
    color: var(--text-secondary);
    max-width: 500px;
    margin-bottom: var(--space-2xl);
    animation: fadeInUp 0.6s ease 0.2s backwards;
}

.hero-buttons {
    display: flex;
    gap: var(--space-md);
    margin-bottom: var(--space-3xl);
    animation: fadeInUp 0.6s ease 0.3s backwards;
}

.hero-stats {
    display: flex;
    align-items: center;
    gap: var(--space-xl);
    animation: fadeInUp 0.6s ease 0.4s backwards;
}

.stat {
    text-align: center;
}

.stat-number {
    display: block;
    font-size: 1.75rem;
    font-weight: 700;
    background: var(--accent-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.stat-label {
    font-size: 0.85rem;
    color: var(--text-muted);
}

.stat-divider {
    width: 1px;
    height: 40px;
    background: var(--border);
}

.hero-visual {
    position: relative;
    z-index: 1;
    animation: fadeInUp 0.8s ease 0.3s backwards;
}

/* Code Window */
.code-window {
    background: var(--bg-secondary);
    border: 1px solid var(--border-light);
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: 
        0 4px 6px -1px rgba(0, 0, 0, 0.3),
        0 20px 40px -10px rgba(0, 0, 0, 0.5);
}

.code-header {
    display: flex;
    align-items: center;
    gap: var(--space-md);
    padding: var(--space-md) var(--space-lg);
    background: var(--bg-tertiary);
    border-bottom: 1px solid var(--border);
}

.code-dots {
    display: flex;
    gap: 6px;
}

.code-dots span {
    width: 12px;
    height: 12px;
    border-radius: 50%;
}

.code-dots span:nth-child(1) { background: #ff5f57; }
.code-dots span:nth-child(2) { background: #febc2e; }
.code-dots span:nth-child(3) { background: #28c840; }

.code-title {
    font-family: var(--font-mono);
    font-size: 0.85rem;
    color: var(--text-muted);
}

.code-content {
    padding: var(--space-xl);
    font-family: var(--font-mono);
    font-size: 0.9rem;
    line-height: 1.8;
    overflow-x: auto;
}

.code-comment { color: var(--text-muted); }
.code-keyword { color: var(--accent-primary); }
.code-success { color: var(--success); }
.code-dim { color: var(--text-muted); }

/* ===================================
   Buttons
   =================================== */
.btn {
    display: inline-flex;
    align-items: center;
    gap: var(--space-sm);
    padding: var(--space-md) var(--space-xl);
    font-size: 0.95rem;
    font-weight: 500;
    border-radius: var(--radius-md);
    border: none;
    cursor: pointer;
    transition: var(--transition-base);
}

.btn-primary {
    background: var(--accent-gradient);
    color: white;
    box-shadow: 0 4px 15px rgba(99, 102, 241, 0.3);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 25px rgba(99, 102, 241, 0.4);
}

.btn-secondary {
    background: var(--bg-tertiary);
    color: var(--text-primary);
    border: 1px solid var(--border-light);
}

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

.btn-white {
    background: white;
    color: var(--bg-primary);
}

.btn-white:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 25px rgba(255, 255, 255, 0.2);
}

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

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

/* ===================================
   Sections
   =================================== */
.section-header {
    text-align: center;
    max-width: 600px;
    margin: 0 auto var(--space-4xl);
}

.section-tag {
    display: inline-block;
    padding: var(--space-xs) var(--space-md);
    background: rgba(99, 102, 241, 0.1);
    border: 1px solid rgba(99, 102, 241, 0.2);
    border-radius: 100px;
    font-size: 0.85rem;
    font-weight: 500;
    color: var(--accent-primary);
    margin-bottom: var(--space-md);
}

.section-title {
    font-size: clamp(2rem, 4vw, 2.75rem);
    font-weight: 700;
    margin-bottom: var(--space-md);
}

.section-subtitle {
    font-size: 1.1rem;
    color: var(--text-secondary);
}

/* ===================================
   Services Section
   =================================== */
.services {
    padding: var(--space-4xl) var(--space-lg);
    background: var(--bg-secondary);
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-xl);
}

.service-card {
    position: relative;
    padding: var(--space-2xl);
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    transition: var(--transition-base);
    display: block;
}

.service-card:hover {
    background: var(--bg-card-hover);
    border-color: var(--border-light);
    transform: translateY(-4px);
}

.service-card.featured {
    background: linear-gradient(135deg, rgba(99, 102, 241, 0.1), rgba(139, 92, 246, 0.05));
    border-color: rgba(99, 102, 241, 0.3);
}

.service-card.featured:hover {
    border-color: rgba(99, 102, 241, 0.5);
}

.service-badge {
    position: absolute;
    top: var(--space-md);
    right: var(--space-md);
    padding: var(--space-xs) var(--space-sm);
    background: var(--accent-gradient);
    border-radius: var(--radius-sm);
    font-size: 0.75rem;
    font-weight: 600;
    color: white;
}

.service-icon {
    display: inline-flex;
    padding: var(--space-md);
    background: var(--bg-tertiary);
    border-radius: var(--radius-md);
    color: var(--accent-primary);
    margin-bottom: var(--space-lg);
}

.service-title {
    font-size: 1.25rem;
    font-weight: 600;
    margin-bottom: var(--space-md);
}

.service-desc {
    color: var(--text-secondary);
    margin-bottom: var(--space-lg);
    line-height: 1.7;
}

.service-link {
    font-size: 0.9rem;
    font-weight: 500;
    color: var(--accent-primary);
    transition: var(--transition-fast);
}

.service-card:hover .service-link {
    color: var(--accent-secondary);
}

/* ===================================
   Platform Section
   =================================== */
.platform {
    padding: var(--space-4xl) var(--space-lg);
}

.platform .container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-4xl);
    align-items: center;
}

.platform-desc {
    font-size: 1.1rem;
    color: var(--text-secondary);
    margin-bottom: var(--space-xl);
}

.platform-features {
    margin-bottom: var(--space-2xl);
}

.platform-features li {
    display: flex;
    align-items: center;
    gap: var(--space-md);
    padding: var(--space-sm) 0;
    color: var(--text-secondary);
}

.platform-features svg {
    color: var(--success);
    flex-shrink: 0;
}

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

/* Terminal */
.terminal {
    width: 100%;
    max-width: 450px;
    background: var(--bg-secondary);
    border: 1px solid var(--border-light);
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: 
        0 4px 6px -1px rgba(0, 0, 0, 0.3),
        0 20px 40px -10px rgba(0, 0, 0, 0.5);
}

.terminal-header {
    display: flex;
    align-items: center;
    gap: var(--space-md);
    padding: var(--space-md) var(--space-lg);
    background: var(--bg-tertiary);
    border-bottom: 1px solid var(--border);
    font-size: 0.85rem;
    color: var(--text-muted);
}

.terminal-dots {
    display: flex;
    gap: 6px;
}

.terminal-dots span {
    width: 12px;
    height: 12px;
    border-radius: 50%;
}

.terminal-dots span:nth-child(1) { background: #ff5f57; }
.terminal-dots span:nth-child(2) { background: #febc2e; }
.terminal-dots span:nth-child(3) { background: #28c840; }

.terminal-content {
    padding: var(--space-lg);
}

.deploy-step {
    display: flex;
    align-items: center;
    gap: var(--space-md);
    padding: var(--space-sm) 0;
    font-family: var(--font-mono);
    font-size: 0.85rem;
}

.step-icon {
    width: 20px;
    text-align: center;
}

.deploy-step.completed .step-icon {
    color: var(--success);
}

.deploy-step.active .step-icon {
    color: var(--accent-primary);
}

.deploy-step.pending .step-icon {
    color: var(--text-muted);
}

.step-text {
    flex: 1;
    color: var(--text-secondary);
}

.deploy-step.completed .step-text {
    color: var(--text-primary);
}

.deploy-step.pending .step-text {
    color: var(--text-muted);
}

.step-time {
    color: var(--text-muted);
    font-size: 0.8rem;
}

.spinner {
    display: inline-block;
    width: 14px;
    height: 14px;
    border: 2px solid var(--border);
    border-top-color: var(--accent-primary);
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

@keyframes spin {
    to { transform: rotate(360deg); }
}

/* ===================================
   CTA Section
   =================================== */
.cta {
    padding: var(--space-4xl) var(--space-lg);
    background: linear-gradient(135deg, var(--bg-tertiary), var(--bg-secondary));
    border-top: 1px solid var(--border);
    border-bottom: 1px solid var(--border);
}

.cta-content {
    text-align: center;
    max-width: 600px;
    margin: 0 auto;
}

.cta-title {
    font-size: clamp(1.75rem, 3vw, 2.5rem);
    font-weight: 700;
    margin-bottom: var(--space-md);
}

.cta-subtitle {
    color: var(--text-secondary);
    margin-bottom: var(--space-2xl);
}

.cta-buttons {
    display: flex;
    justify-content: center;
    gap: var(--space-md);
    flex-wrap: wrap;
}

/* ===================================
   Footer
   =================================== */
.footer {
    padding: var(--space-4xl) var(--space-lg) var(--space-2xl);
    background: var(--bg-primary);
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1.5fr;
    gap: var(--space-3xl);
    margin-bottom: var(--space-3xl);
}

.footer-logo {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    font-weight: 600;
    margin-bottom: var(--space-md);
}

.footer-logo img {
    width: 32px;
    height: 32px;
    border-radius: var(--radius-sm);
}

.footer-tagline {
    color: var(--text-muted);
    font-size: 0.9rem;
}

.footer-links h4,
.footer-contact h4 {
    font-size: 0.9rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--text-muted);
    margin-bottom: var(--space-lg);
}

.footer-links ul {
    display: flex;
    flex-direction: column;
    gap: var(--space-sm);
}

.footer-links a {
    color: var(--text-secondary);
    font-size: 0.95rem;
    transition: var(--transition-fast);
}

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

.footer-contact p {
    margin-bottom: var(--space-sm);
}

.footer-contact a {
    color: var(--text-secondary);
    transition: var(--transition-fast);
}

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

.footer-location {
    color: var(--text-muted);
    font-size: 0.9rem;
}

.footer-bottom {
    padding-top: var(--space-2xl);
    border-top: 1px solid var(--border);
    text-align: center;
    color: var(--text-muted);
    font-size: 0.9rem;
}

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

/* ===================================
   Responsive
   =================================== */
@media (max-width: 1024px) {
    .hero {
        grid-template-columns: 1fr;
        gap: var(--space-3xl);
        text-align: center;
    }
    
    .hero-subtitle {
        margin-left: auto;
        margin-right: auto;
    }
    
    .hero-buttons {
        justify-content: center;
    }
    
    .hero-stats {
        justify-content: center;
    }
    
    .services-grid {
        grid-template-columns: 1fr;
        max-width: 500px;
        margin: 0 auto;
    }
    
    .platform .container {
        grid-template-columns: 1fr;
        gap: var(--space-3xl);
    }
    
    .footer-grid {
        grid-template-columns: 1fr 1fr;
        gap: var(--space-2xl);
    }
}

@media (max-width: 768px) {
    .nav-menu {
        position: fixed;
        top: 0;
        right: -100%;
        width: 80%;
        max-width: 300px;
        height: 100vh;
        background: var(--bg-secondary);
        flex-direction: column;
        align-items: flex-start;
        padding: 80px var(--space-xl) var(--space-xl);
        gap: var(--space-lg);
        transition: var(--transition-base);
        border-left: 1px solid var(--border);
    }
    
    .nav-menu.active {
        right: 0;
    }
    
    .nav-toggle {
        display: flex;
    }
    
    .hero-stats {
        flex-wrap: wrap;
    }
    
    .stat-divider {
        display: none;
    }
    
    .stat {
        flex: 0 0 calc(50% - var(--space-md));
    }
    
    .footer-grid {
        grid-template-columns: 1fr;
        text-align: center;
    }
    
    .footer-brand {
        order: -1;
    }
    
    .footer-logo {
        justify-content: center;
    }
    
    .cta-buttons {
        flex-direction: column;
        align-items: center;
    }
}

/* ===================================
   Page-specific styles
   =================================== */

/* About Page */
.page-hero {
    padding: calc(80px + var(--space-4xl)) var(--space-lg) var(--space-3xl);
    text-align: center;
    background: 
        radial-gradient(ellipse 80% 50% at 50% -20%, rgba(99, 102, 241, 0.1), transparent);
}

.page-hero h1 {
    font-size: clamp(2rem, 4vw, 3rem);
    margin-bottom: var(--space-md);
}

.page-hero p {
    color: var(--text-secondary);
    font-size: 1.1rem;
    max-width: 600px;
    margin: 0 auto;
}

.content-section {
    padding: var(--space-4xl) var(--space-lg);
}

.content-section.alt {
    background: var(--bg-secondary);
}

.content-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--space-3xl);
    align-items: center;
}

.content-grid.reverse {
    direction: rtl;
}

.content-grid.reverse > * {
    direction: ltr;
}

.content-text h2 {
    font-size: 1.75rem;
    margin-bottom: var(--space-lg);
}

.content-text p {
    color: var(--text-secondary);
    margin-bottom: var(--space-md);
    line-height: 1.8;
}

.content-text ul {
    margin: var(--space-lg) 0;
}

.content-text li {
    display: flex;
    align-items: flex-start;
    gap: var(--space-md);
    padding: var(--space-sm) 0;
    color: var(--text-secondary);
}

.content-text li svg {
    color: var(--success);
    flex-shrink: 0;
    margin-top: 2px;
}

/* Contact Form */
.contact-form {
    max-width: 600px;
    margin: 0 auto;
}

.form-group {
    margin-bottom: var(--space-lg);
}

.form-group label {
    display: block;
    font-weight: 500;
    margin-bottom: var(--space-sm);
    color: var(--text-secondary);
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: var(--space-md);
    background: var(--bg-tertiary);
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    color: var(--text-primary);
    font-family: var(--font-sans);
    font-size: 1rem;
    transition: var(--transition-fast);
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--accent-primary);
    box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.1);
}

.form-group textarea {
    min-height: 150px;
    resize: vertical;
}

.contact-info {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--space-xl);
    margin-top: var(--space-3xl);
}

.contact-item {
    display: flex;
    align-items: center;
    gap: var(--space-md);
    padding: var(--space-lg);
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
}

.contact-item-icon {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 48px;
    height: 48px;
    background: var(--bg-tertiary);
    border-radius: var(--radius-md);
    color: var(--accent-primary);
}

.contact-item-text h4 {
    font-size: 0.85rem;
    color: var(--text-muted);
    margin-bottom: var(--space-xs);
}

.contact-item-text a,
.contact-item-text p {
    color: var(--text-primary);
    font-weight: 500;
}

@media (max-width: 768px) {
    .content-grid {
        grid-template-columns: 1fr;
    }
    
    .content-grid.reverse {
        direction: ltr;
    }
    
    .contact-info {
        grid-template-columns: 1fr;
    }
}

/* ===================================
   Clients Section
   =================================== */
.clients {
    padding: var(--space-4xl) 0;
    background: var(--bg-secondary);
    position: relative;
    overflow: hidden;
}

.clients::before {
    content: "";
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 1px;
    background: linear-gradient(90deg, transparent, var(--border-light), transparent);
}

.clients-grid {
    display: grid;
    grid-template-columns: repeat(6, 1fr);
    gap: var(--space-lg);
    margin-top: var(--space-2xl);
}

.client-logo {
    display: flex;
    align-items: center;
    justify-content: center;
    padding: var(--space-lg);
    background: var(--bg-card);
    border-radius: var(--radius-md);
    border: 1px solid var(--border);
    transition: all var(--transition-base);
    aspect-ratio: 1;
}

.client-logo:hover {
    background: var(--bg-card-hover);
    border-color: var(--border-light);
    transform: translateY(-4px);
}

.client-logo img {
    max-width: 80%;
    max-height: 80%;
    object-fit: contain;
    filter: grayscale(100%) brightness(1.5);
    opacity: 0.7;
    transition: all var(--transition-base);
}

.client-logo:hover img {
    filter: grayscale(0%) brightness(1);
    opacity: 1;
}

@media (max-width: 1024px) {
    .clients-grid {
        grid-template-columns: repeat(4, 1fr);
    }
}

@media (max-width: 768px) {
    .clients-grid {
        grid-template-columns: repeat(3, 1fr);
    }
    
    .client-logo {
        padding: var(--space-md);
    }
}

@media (max-width: 480px) {
    .clients-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: var(--space-md);
    }
}