/* ===========================
   RESPONSIVE BREAKPOINTS
   Comprehensive mobile/tablet optimization
   =========================== */

/* ===========================
   TABLET LANDSCAPE (≤1024px)
   =========================== */
@media (max-width: 1024px) {
    :root {
        --section-padding: 80px;
        --container-padding: 30px;
    }
    
    /* Navigation */
    .header-nav {
        gap: 25px;
    }
    
    /* Hero */
    .hero {
        padding: 100px 0 60px;
    }
    
    .hero h1 {
        font-size: 4rem;
    }
    
    .hero-description {
        font-size: 1.2rem;
    }
    
    /* Service Cards */
    .services-grid {
        grid-template-columns: 1fr;
    }
    
    .service-card {
        grid-column: span 1 !important;
        min-height: 200px;
    }
    
    /* Manufacturing */
    .manufacturing-content {
        grid-template-columns: 1fr;
        gap: 50px;
    }
    
    .manufacturing-features {
        grid-template-columns: 1fr 1fr;
    }
    
    /* Stats */
    .stats-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    /* Advisory Section */
    .advisory-grid {
        grid-template-columns: 1fr;
        gap: 50px;
    }
    
    .ai-advantage-card {
        position: static !important;
    }
    
    .types-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    /* Footer */
    .footer-grid,
    .site-footer .footer-grid {
        grid-template-columns: 1fr;
        gap: 40px;
    }
}

/* ===========================
   TABLET PORTRAIT (≤768px)
   =========================== */
@media (max-width: 768px) {
    :root {
        --section-padding: 60px;
        --container-padding: 20px;
    }
    
    /* Typography */
    .section-title {
        font-size: 2.5rem;
    }
    
    .section-description {
        font-size: 1.1rem;
    }
    
    /* Hero */
    .hero {
        padding: 80px 0 60px;
        min-height: auto;
    }
    
    .hero h1 {
        font-size: 3rem;
    }
    
    .hero-description {
        font-size: 1.1rem;
        margin-bottom: 30px;
    }
    
    .hero-cta {
        padding: 16px 35px;
        font-size: 1rem;
    }
    
    /* Service Cards */
    .service-card {
        padding: 35px 25px;
        min-height: auto;
    }
    
    .service-card h3 {
        font-size: 1.5rem;
    }
    
    .service-card p {
        font-size: 1rem;
    }
    
    /* Manufacturing */
    .manufacturing-text h2 {
        font-size: 2.5rem;
    }
    
    .manufacturing-text p {
        font-size: 1.1rem;
    }
    
    .manufacturing-features {
        grid-template-columns: 1fr;
        gap: 20px;
    }
    
    .manufacturing-visual {
        height: 400px;
    }
    
    /* Stats */
    .stats-grid {
        grid-template-columns: 1fr;
        gap: 25px;
    }
    
    .stat-item {
        padding: 30px 20px;
    }
    
    .stat-number {
        font-size: 3rem;
    }
    
    /* Contact Form */
    .form-row {
        grid-template-columns: 1fr;
    }
    
    .contact-form {
        padding: 40px 30px;
    }
    
    .form-group input,
    .form-group select,
    .form-group textarea {
        padding: 15px 18px;
    }
    
    /* Advisory Section */
    .advisory-header {
        margin-bottom: 50px;
    }
    
    .timeline-item {
        grid-template-columns: 60px 1fr;
        gap: 20px;
        margin-bottom: 30px;
    }
    
    .marker-icon {
        width: 50px;
        height: 50px;
        font-size: 1rem;
    }
    
    .timeline-content {
        padding: 25px;
    }
    
    .timeline-content h4 {
        font-size: 1.2rem;
    }
    
    .timeline-content p {
        font-size: 0.95rem;
    }
    
    /* AI Advantage Card */
    .ai-advantage-card {
        padding: 35px 25px;
    }
    
    .ai-advantage-card h3 {
        font-size: 1.7rem;
    }
    
    .ai-intro {
        font-size: 1rem;
    }
    
    .ai-metrics {
        grid-template-columns: 1fr;
        gap: 15px;
    }
    
    .metric-item {
        padding: 20px 15px;
    }
    
    .metric-value {
        font-size: 1.8rem;
    }
    
    .intelligence-header {
        flex-direction: column;
        align-items: flex-start;
        gap: 15px;
        margin-bottom: 25px;
    }
    
    .intelligence-icon {
        width: 50px;
        height: 50px;
    }
    
    .intelligence-text h4 {
        font-size: 1.3rem;
    }
    
    .intelligence-grid {
        grid-template-columns: 1fr;
        gap: 15px;
        margin-bottom: 25px;
    }
    
    .intel-card {
        padding: 20px;
    }
    
    .intel-card h5 {
        font-size: 1rem;
    }
    
    /* Project Types */
    .types-title {
        font-size: 1.7rem;
        margin-bottom: 30px;
    }
    
    .types-grid {
        grid-template-columns: 1fr;
        gap: 18px;
    }
    
    .type-card {
        padding: 30px 20px;
    }
    
    .type-card h4 {
        font-size: 1.1rem;
    }
    
    /* Footer */
    .footer-bottom {
        flex-direction: column;
        align-items: flex-start;
        gap: 15px;
    }
    
    .footer-nav {
        flex-direction: column;
        gap: 20px;
    }
}

/* ===========================
   MOBILE (≤480px)
   =========================== */
@media (max-width: 480px) {
    :root {
        --section-padding: 50px;
        --container-padding: 15px;
    }
    
    /* Typography */
    .hero h1 {
        font-size: 2.5rem;
        letter-spacing: -1px;
    }
    
    .section-title {
        font-size: 2rem;
    }
    
    .hero-description {
        font-size: 1rem;
    }
    
    .section-description {
        font-size: 1rem;
    }
    
    /* Hero */
    .hero {
        padding: 60px 0 40px;
    }
    
    .hero-label {
        font-size: 0.75rem;
        padding: 6px 15px;
    }
    
    .hero-cta {
        width: 100%;
        justify-content: center;
        padding: 15px 25px;
    }
    
    /* Service Cards */
    .service-card {
        padding: 25px 20px;
    }
    
    .service-card h3 {
        font-size: 1.3rem;
    }
    
    .service-card p {
        font-size: 0.95rem;
    }
    
    .service-number {
        font-size: 0.75rem;
    }
    
    /* Manufacturing */
    .manufacturing-text h2 {
        font-size: 2rem;
    }
    
    .manufacturing-text p {
        font-size: 1rem;
    }
    
    .feature-item {
        padding: 20px;
    }
    
    .feature-item h4 {
        font-size: 1rem;
    }
    
    .feature-item p {
        font-size: 0.9rem;
    }
    
    .manufacturing-visual {
        height: 300px;
    }
    
    .visual-grid {
        padding: 15px;
        gap: 10px;
    }
    
    /* Stats */
    .stat-item {
        padding: 25px 15px;
    }
    
    .stat-number {
        font-size: 2.5rem;
    }
    
    .stat-label {
        font-size: 1rem;
    }
    
    /* Contact Form */
    .contact-form {
        padding: 30px 20px;
    }
    
    .form-group label {
        font-size: 0.9rem;
    }
    
    .form-group input,
    .form-group select,
    .form-group textarea {
        padding: 14px 16px;
        font-size: 0.95rem;
    }
    
    .submit-btn {
        padding: 16px;
        font-size: 1rem;
    }
    
    /* Advisory Section */
    .advisory-header .section-title {
        font-size: 2rem;
    }
    
    .advisory-header .section-description {
        font-size: 1rem;
    }
    
    .timeline-item {
        grid-template-columns: 50px 1fr;
        gap: 15px;
    }
    
    .marker-icon {
        width: 45px;
        height: 45px;
        font-size: 0.9rem;
    }
    
    .timeline-content {
        padding: 20px;
    }
    
    .timeline-content h4 {
        font-size: 1.1rem;
    }
    
    .timeline-content p {
        font-size: 0.9rem;
    }
    
    /* AI Card */
    .ai-advantage-card {
        padding: 30px 20px;
    }
    
    .ai-advantage-card h3 {
        font-size: 1.5rem;
    }
    
    .ai-badge {
        font-size: 0.7rem;
        padding: 8px 15px;
    }
    
    .ai-intro {
        font-size: 0.95rem;
    }
    
    .metric-value {
        font-size: 1.6rem;
    }
    
    .metric-label {
        font-size: 0.8rem;
    }
    
    .intelligence-text h4 {
        font-size: 1.2rem;
    }
    
    .intel-card {
        padding: 18px;
    }
    
    .intel-emoji {
        font-size: 1.5rem;
    }
    
    .cta-box {
        padding: 25px 20px;
    }
    
    .cta-box h4 {
        font-size: 1.2rem;
    }
    
    .cta-btn-secondary {
        padding: 12px 30px;
        font-size: 0.95rem;
    }
    
    /* Project Types */
    .types-title {
        font-size: 1.5rem;
    }
    
    .type-card {
        padding: 25px 18px;
    }
    
    .type-icon {
        font-size: 2.5rem;
    }
    
    .type-card h4 {
        font-size: 1rem;
    }
    
    .type-card p {
        font-size: 0.85rem;
    }
    
    /* Footer */
    .footer-brand h3,
    .brand-name {
        font-size: 1.4rem;
    }
    
    .footer-section h4,
    .footer-col h4 {
        font-size: 1rem;
    }
    
    .footer-note,
    .footer-meta {
        font-size: 0.85rem;
    }
}

/* ===========================
   LANDSCAPE PHONE (≤640px height)
   =========================== */
@media (max-height: 640px) and (orientation: landscape) {
    .hero {
        min-height: auto;
        padding: 60px 0 40px;
    }
    
    .hero h1 {
        font-size: 2.5rem;
        margin-bottom: 20px;
    }
    
    .hero-description {
        margin-bottom: 30px;
    }
}

/* ===========================
   TOUCH DEVICE OPTIMIZATIONS
   =========================== */
@media (hover: none) and (pointer: coarse) {
    /* Increase tap targets */
    .hero-cta,
    .submit-btn,
    .cta-btn-secondary {
        min-height: 48px;
    }
    
    .nav-link {
        padding: 12px 20px;
    }
    
    /* Remove hover effects that don't work on touch */
    .service-card:hover,
    .stat-item:hover,
    .type-card:hover {
        transform: none;
    }
    
    /* Simplify animations for better performance */
    * {
        transition-duration: 0.2s !important;
    }
}

/* ===========================
   REDUCED MOTION
   =========================== */
@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
        scroll-behavior: auto !important;
    }
}