/*
 * ASIA Investment and Development Ltd.
 * Responsive Stylesheet
 * 
 * This file contains all responsive styles and media queries
 * for different screen sizes and devices.
 */

/* =================================================================
   Base Responsive Settings
   ================================================================= */

/* Make images responsive by default */
img {
    max-width: 100%;
    height: auto;
}

/* Make embedded content responsive */
embed,
iframe,
object,
video {
    max-width: 100%;
}

/* =================================================================
   Extra Large Screens (1200px and up)
   ================================================================= */
@media (min-width: 1200px) {
    .container {
        max-width: 1140px;
    }
    
    /* Larger typography for very large screens */
    h1 {
        font-size: 3.2rem;
    }
    
    h2 {
        font-size: 2.4rem;
    }
    
    /* Enhanced hero section for large screens */
    .hero {
        padding: 180px 0 120px;
    }
}

/* =================================================================
   Large Screens (992px to 1199px)
   ================================================================= */
@media (min-width: 992px) and (max-width: 1199px) {
    .container {
        max-width: 960px;
    }
    
    /* Adjust grid layout for this size */
    .values-grid,
    .areas-grid,
    .focus-grid {
        grid-template-columns: repeat(3, 1fr);
    }
    
    /* Slightly smaller typography */
    h1 {
        font-size: 2.8rem;
    }
    
    h2 {
        font-size: 2.2rem;
    }
    
    /* Adjust card spacing */
    .area-card,
    .value-card,
    .focus-card {
        padding: var(--spacing-sm);
    }
}

/* =================================================================
   Medium Screens (768px to 991px) - Tablets
   ================================================================= */
@media (min-width: 768px) and (max-width: 991px) {
    .container {
        max-width: 720px;
    }
    
    /* Header and navigation adjustments */
    .logo {
        max-width: 180px;
    }
    
    .nav-menu {
        font-size: 0.9rem;
    }
    
    .nav-menu li {
        margin: 0 var(--spacing-xs);
    }
    
    /* Typography adjustments */
    h1 {
        font-size: 2.5rem;
    }
    
    h2 {
        font-size: 2rem;
    }
    
    h3 {
        font-size: 1.3rem;
    }
    
    /* Grid adjustments for medium screens */
    .values-grid,
    .focus-grid,
    .additional-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .areas-grid,
    .other-areas-grid,
    .metrics-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: var(--spacing-md);
    }
    
    /* Adjust intro sections layout */
    .area-intro .intro-content,
    .process-intro .intro-content {
        flex: 0 0 100%;
        margin-bottom: var(--spacing-md);
    }
    
    .area-intro .intro-image,
    .process-intro .intro-image {
        flex: 0 0 100%;
    }
    
    /* Approach section adjustments */
    .approach-grid {
        grid-template-columns: 1fr;
    }
    
    .approach-content {
        grid-row: 2;
    }
    
    .approach-image {
        grid-row: 1;
        margin-bottom: var(--spacing-md);
    }
    
    /* Case studies adjustments */
    .case-study {
        flex-direction: column;
    }
    
    .case-image {
        width: 100%;
        max-width: 100%;
        margin-bottom: var(--spacing-sm);
    }
    
    .case-content {
        padding: var(--spacing-sm);
    }
    
    /* Footer adjustments */
    .footer-content {
        grid-template-columns: repeat(2, 1fr);
        gap: var(--spacing-md) var(--spacing-lg);
    }
}

/* =================================================================
   Small Screens (576px to 767px) - Small Tablets & Large Phones
   ================================================================= */
@media (min-width: 576px) and (max-width: 767px) {
    .container {
        max-width: 540px;
    }
    
    /* Mobile menu styles - hamburger menu for this size */
    .menu-toggle {
        display: flex;
    }
    
    .nav-menu {
        position: fixed;
        top: 80px;
        left: 0;
        width: 100%;
        height: 0;
        background-color: white;
        overflow: hidden;
        flex-direction: column;
        align-items: center;
        transition: height 0.3s ease;
        box-shadow: 0 5px 10px rgba(0, 0, 0, 0.1);
        z-index: 999;
    }
    
    .nav-menu.active {
        height: auto;
        padding: var(--spacing-md) 0;
    }
    
    .nav-menu li {
        margin: var(--spacing-xs) 0;
    }
    
    /* Typography adjustments */
    h1 {
        font-size: 2.2rem;
    }
    
    h2 {
        font-size: 1.8rem;
    }
    
    .section-intro {
        font-size: 1rem;
    }
    
    /* Grid adjustments for small screens */
    .values-grid,
    .areas-grid,
    .focus-grid,
    .other-areas-grid,
    .metrics-grid,
    .additional-grid,
    .criteria-grid,
    .principles-grid {
        grid-template-columns: repeat(1, 1fr);
    }
    
    /* Hero section adjustments */
    .hero {
        padding: 120px 0 80px;
    }
    
    .hero-buttons {
        flex-direction: column;
        gap: var(--spacing-sm);
    }
    
    /* Intro section layout changes */
    .intro-content,
    .intro-image {
        flex: 0 0 100%;
    }
    
    .intro-image {
        margin-top: var(--spacing-md);
        order: 2;
    }
    
    /* Case studies adjustments */
    .case-studies-grid {
        grid-template-columns: 1fr;
    }
    
    .case-study {
        flex-direction: column;
    }
    
    .case-image {
        width: 100%;
    }
    
    .case-impact {
        flex-direction: column;
        align-items: flex-start;
    }
    
    .impact-item {
        margin-bottom: var(--spacing-xs);
    }
    
    /* Footer adjustments */
    .footer-content {
        grid-template-columns: 1fr;
        gap: var(--spacing-md);
    }
    
    .footer-logo,
    .footer-links,
    .footer-legal,
    .footer-address {
        text-align: center;
    }
    
    .footer-logo img {
        margin: 0 auto var(--spacing-sm);
    }
}

/* =================================================================
   Extra Small Screens (up to 575px) - Mobile Phones
   ================================================================= */
@media (max-width: 575px) {
    .container {
        width: 100%;
        padding: 0 15px;
    }
    
    /* Mobile navigation */
    .site-header .container {
        padding: 0.8rem 15px;
    }
    
    .logo {
        max-width: 160px;
    }
    
    .menu-toggle {
        display: flex;
    }
    
    .nav-menu {
        position: fixed;
        top: 70px;
        left: 0;
        width: 100%;
        height: 0;
        background-color: white;
        overflow: hidden;
        flex-direction: column;
        align-items: center;
        transition: height 0.3s ease;
        box-shadow: 0 5px 10px rgba(0, 0, 0, 0.1);
        z-index: 999;
    }
    
    .nav-menu.active {
        height: auto;
        padding: var(--spacing-md) 0;
    }
    
    .nav-menu li {
        margin: var(--spacing-xs) 0;
    }
    
    /* Typography size reductions */
    h1 {
        font-size: 1.8rem;
        margin-bottom: var(--spacing-sm);
    }
    
    h2 {
        font-size: 1.5rem;
        margin-bottom: var(--spacing-sm);
    }
    
    h3 {
        font-size: 1.2rem;
    }
    
    .section-intro {
        font-size: 1rem;
        margin-bottom: var(--spacing-md);
    }
    
    p {
        font-size: 0.95rem;
    }
    
    /* Section padding reductions */
    section {
        padding: var(--spacing-lg) 0;
    }
    
    /* Hero section adjustments */
    .hero {
        padding: 100px 0 60px;
    }
    
    .hero-tagline {
        font-size: 1rem;
    }
    
    .hero-buttons {
        flex-direction: column;
        gap: var(--spacing-sm);
        width: 100%;
    }
    
    .hero-buttons .btn {
        width: 100%;
    }
    
    /* Grid adjustments for mobile */
    .values-grid,
    .areas-grid,
    .focus-grid,
    .other-areas-grid,
    .metrics-grid,
    .additional-grid,
    .criteria-grid {
        grid-template-columns: 1fr;
        gap: var(--spacing-md);
    }
    
    /* Card styling adjustments */
    .area-card,
    .value-card,
    .focus-card,
    .criteria-card {
        padding: var(--spacing-sm);
    }
    
    /* Approach section */
    .approach-grid {
        grid-template-columns: 1fr;
    }
    
    .approach-content {
        order: 2;
    }
    
    .approach-image {
        order: 1;
        margin-bottom: var(--spacing-md);
    }
    
    /* Case studies */
    .case-study {
        flex-direction: column;
    }
    
    .case-image {
        width: 100%;
        border-radius: 8px 8px 0 0;
    }
    
    .case-content {
        padding: var(--spacing-sm);
    }
    
    .case-impact {
        flex-direction: column;
        align-items: flex-start;
    }
    
    .impact-item {
        margin-bottom: var(--spacing-xs);
        margin-right: 0;
    }
    
    /* CTA sections */
    .contact-cta,
    .submit-project-cta {
        padding: var(--spacing-md) 0;
    }
    
    .cta-buttons {
        flex-direction: column;
        gap: var(--spacing-sm);
        width: 100%;
    }
    
    .cta-buttons .btn {
        width: 100%;
        text-align: center;
    }
    
    /* Footer adjustments */
    .footer-content {
        grid-template-columns: 1fr;
        gap: var(--spacing-md);
        text-align: center;
    }
    
    .footer-logo img {
        margin: 0 auto var(--spacing-sm);
        max-width: 180px;
    }
    
    .footer-links,
    .footer-legal,
    .footer-address {
        margin-top: var(--spacing-md);
    }
    
    .footer-bottom {
        text-align: center;
        font-size: 0.8rem;
    }
    
    /* Breadcrumbs */
    .breadcrumbs {
        font-size: 0.8rem;
    }
    
    /* Page header */
    .page-header {
        padding: 100px 0 30px;
    }
    
    /* Modal adjustments */
    .modal-content {
        padding: var(--spacing-sm);
        width: 95%;
    }
}

/* =================================================================
   Print Styles
   ================================================================= */
@media print {
    * {
        background: transparent !important;
        color: #000 !important;
        box-shadow: none !important;
        text-shadow: none !important;
    }
    
    a,
    a:visited {
        text-decoration: underline;
    }
    
    pre,
    blockquote {
        border: 1px solid #999;
        page-break-inside: avoid;
    }
    
    thead {
        display: table-header-group;
    }
    
    tr,
    img {
        page-break-inside: avoid;
    }
    
    img {
        max-width: 100% !important;
    }
    
    p,
    h2,
    h3 {
        orphans: 3;
        widows: 3;
    }
    
    h2,
    h3 {
        page-break-after: avoid;
    }
    
    /* Hide unnecessary elements when printing */
    .site-header,
    .site-footer,
    .menu-toggle,
    .nav-menu,
    .contact-cta,
    .submit-project-cta,
    .other-areas {
        display: none !important;
    }
    
    /* Expand content width for printing */
    .container {
        width: 100%;
        max-width: none;
    }
    
    /* Ensure important content is visible */
    .area-intro,
    .focus-areas,
    .case-studies {
        display: block !important;
        width: 100% !important;
        margin: 0 !important;
        padding: 0 !important;
    }
}