/* ===================================
   RESPONSIVE DESIGN
   Trans-Comm Group
   =================================== */

/* ===================================
   TABLET (max-width: 1024px)
   =================================== */
@media (max-width: 1024px) {
    :root {
        --spacing-xl: 4rem;
        --spacing-lg: 3rem;
    }
    
    .container {
        padding: 0 var(--spacing-md);
    }
    
    /* Header */
    .main-nav {
        display: none;
    }
    
    .mobile-menu-toggle {
        display: flex;
    }
    
    /* Mobile menu active state */
    .main-nav.active {
        display: block;
        position: fixed;
        top: 70px;
        left: 0;
        width: 100%;
        background-color: var(--color-night-blue);
        padding: var(--spacing-md);
        box-shadow: var(--shadow-lg);
    }
    
    .main-nav.active ul {
        flex-direction: column;
        gap: 0;
    }
    
    .main-nav.active a {
        display: block;
        padding: var(--spacing-sm);
        border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    }
    
    .main-nav.active .dropdown {
        position: static;
        opacity: 1;
        visibility: visible;
        transform: none;
        box-shadow: none;
        background-color: rgba(255, 255, 255, 0.05);
        margin-top: var(--spacing-xs);
    }
    
    /* Hero */
    .hero-section {
        min-height: 80vh;
    }
    
    .hero-cta {
        flex-direction: column;
        gap: var(--spacing-sm);
    }
    
    .hero-cta .btn {
        width: 100%;
        max-width: 300px;
    }
    
    /* Content grids */
    .who-we-are .content-grid {
        grid-template-columns: 1fr;
        gap: var(--spacing-md);
    }
    
    .education-grid {
        grid-template-columns: 1fr;
    }
    
    /* Sectors grid */
    .sectors-grid {
        grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    }
    
    .sector-card {
        height: 350px;
    }
    
    /* Capabilities */
    .capabilities-grid {
        grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    }
    
    /* Projects carousel */
    .project-slide {
        grid-template-columns: 1fr;
    }
    
    .project-image {
        height: 300px;
    }
    
    /* Timeline */
    .timeline::before {
        left: 20px;
    }
    
    .timeline-item {
        grid-template-columns: 1fr;
        padding-left: 60px;
    }
    
    .timeline-item:nth-child(even) .timeline-year,
    .timeline-item:nth-child(even) .timeline-content {
        order: initial;
        text-align: left;
    }
    
    .timeline-year {
        position: absolute;
        left: 0;
        width: 80px;
        font-size: 1.5rem;
    }
    
    /* Footer */
    .footer-top {
        grid-template-columns: 1fr 1fr;
    }
    
    .footer-about {
        grid-column: 1 / -1;
    }
}

/* ===================================
   MOBILE (max-width: 768px)
   =================================== */
@media (max-width: 768px) {
    :root {
        --spacing-xl: 3rem;
        --spacing-lg: 2rem;
        --spacing-md: 1.5rem;
    }
    
    .container {
        padding: 0 var(--spacing-sm);
    }
    
    /* Typography */
    h1 {
        font-size: 2rem;
    }
    
    h2 {
        font-size: 1.75rem;
    }
    
    h3 {
        font-size: 1.375rem;
    }
    
    .lead,
    .section-lead {
        font-size: 1rem;
    }
    
    /* Hero */
    .hero-section {
        min-height: 70vh;
        margin-top: 60px;
    }
    
    .hero-subtitle {
        font-size: 1.125rem;
    }
    
    /* Buttons */
    .btn {
        padding: 0.75rem 1.5rem;
        font-size: 0.875rem;
    }
    
    /* Sections */
    .section {
        padding: var(--spacing-lg) 0;
    }
    
    /* Capabilities */
    .capability-card {
        padding: var(--spacing-md);
    }
    
    .capability-icon {
        font-size: 2.5rem;
    }
    
    /* Sectors */
    .sectors-grid {
        grid-template-columns: 1fr;
    }
    
    .sector-card {
        height: 320px;
    }
    
    /* Education stats */
    .education-stats {
        grid-template-columns: 1fr;
    }
    
    .stat-number {
        font-size: 2.5rem;
    }
    
    /* Differentiators */
    .differentiators-grid {
        grid-template-columns: 1fr;
        gap: var(--spacing-md);
    }
    
    .differentiator-card {
        padding: var(--spacing-md);
    }
    
    /* Timeline */
    .timeline-item {
        margin-bottom: var(--spacing-lg);
    }
    
    .timeline-content {
        padding: var(--spacing-md);
    }
    
    /* Carousel controls */
    .carousel-btn {
        width: 40px;
        height: 40px;
        font-size: 1rem;
    }
    
    .carousel-btn.prev {
        left: var(--spacing-sm);
    }
    
    .carousel-btn.next {
        right: var(--spacing-sm);
    }
    
    /* Footer */
    .footer-top {
        grid-template-columns: 1fr;
        gap: var(--spacing-lg);
    }
    
    .footer-bottom {
        flex-direction: column;
        gap: var(--spacing-sm);
        text-align: center;
    }
    
    .footer-legal {
        flex-direction: column;
        gap: var(--spacing-xs);
    }
}

/* ===================================
   SMALL MOBILE (max-width: 480px)
   =================================== */
@media (max-width: 480px) {
    :root {
        --spacing-xl: 2.5rem;
        --spacing-lg: 1.5rem;
        --spacing-md: 1rem;
    }
    
    .logo-img {
        height: 140px;
    }
    
    .footer-logo {
        height: 120px;
    }
    
    .header-content {
        padding: 0.25rem 0;
    }
    
    .hero-title {
        font-size: 1.75rem;
    }
    
    .hero-subtitle {
        font-size: 1rem;
    }
    
    .section-intro {
        margin-bottom: var(--spacing-md);
    }
    
    .capability-card {
        padding: var(--spacing-sm) var(--spacing-md);
    }
    
    .sector-card {
        height: 280px;
    }
    
    .sector-content {
        padding: var(--spacing-md);
    }
    
    .project-info {
        padding: var(--spacing-sm);
    }
    
    .cta-content {
        padding: var(--spacing-lg) 0;
    }
}

/* ===================================
   LANDSCAPE MOBILE
   =================================== */
@media (max-height: 600px) and (orientation: landscape) {
    .hero-section {
        min-height: 100vh;
    }
    
    .hero-content {
        padding: var(--spacing-md) 0;
    }
}

/* ===================================
   PRINT STYLES
   =================================== */
@media print {
    .main-header,
    .mobile-menu-toggle,
    .hero-cta,
    .carousel-btn,
    .main-footer,
    .cta-section {
        display: none;
    }
    
    .hero-section {
        margin-top: 0;
        min-height: auto;
    }
    
    .section {
        page-break-inside: avoid;
    }
}