/* ===== RESPONSIVE DESIGN GLOBAL ===== */

/* Base responsive settings */
* {
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* ===== MOBILE FIRST APPROACH ===== */

/* Extra Small devices (phones, 320px and up) */
@media (min-width: 320px) {
    .container {
        padding-left: 1rem;
        padding-right: 1rem;
    }
    
    h1 {
        font-size: 2rem;
        line-height: 1.2;
    }
    
    h2 {
        font-size: 1.5rem;
        line-height: 1.3;
    }
    
    h3 {
        font-size: 1.25rem;
        line-height: 1.4;
    }
    
    .btn {
        padding: 0.75rem 1.5rem;
        font-size: 0.875rem;
        min-height: 44px;
        min-width: 44px;
    }
    
    .card {
        padding: 1rem;
        margin-bottom: 1rem;
    }
    
    .grid {
        grid-template-columns: 1fr;
        gap: 1rem;
    }
    
    .flex {
        flex-direction: column;
        gap: 1rem;
    }
    
    .text-center {
        text-align: center;
    }
    
    .hidden-mobile {
        display: none !important;
    }
    
    .visible-mobile {
        display: block !important;
    }
}

/* Small devices (landscape phones, 576px and up) */
@media (min-width: 576px) {
    .container {
        padding-left: 1.5rem;
        padding-right: 1.5rem;
    }
    
    h1 {
        font-size: 2.5rem;
    }
    
    h2 {
        font-size: 2rem;
    }
    
    .grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 1.5rem;
    }
    
    .flex {
        flex-direction: row;
        gap: 1.5rem;
    }
}

/* Medium devices (tablets, 768px and up) */
@media (min-width: 768px) {
    .container {
        padding-left: 2rem;
        padding-right: 2rem;
    }
    
    h1 {
        font-size: 3rem;
    }
    
    h2 {
        font-size: 2.5rem;
    }
    
    .grid {
        grid-template-columns: repeat(3, 1fr);
        gap: 2rem;
    }
    
    .btn {
        padding: 1rem 2rem;
        font-size: 1rem;
    }
    
    .card {
        padding: 1.5rem;
    }
}

/* Large devices (desktops, 992px and up) */
@media (min-width: 992px) {
    .container {
        padding-left: 2.5rem;
        padding-right: 2.5rem;
    }
    
    h1 {
        font-size: 3.5rem;
    }
    
    h2 {
        font-size: 3rem;
    }
    
    .grid {
        grid-template-columns: repeat(4, 1fr);
        gap: 2.5rem;
    }
    
    .hidden-desktop {
        display: none !important;
    }
    
    .visible-desktop {
        display: block !important;
    }
}

/* Extra large devices (large desktops, 1200px and up) */
@media (min-width: 1200px) {
    .container {
        padding-left: 3rem;
        padding-right: 3rem;
    }
    
    h1 {
        font-size: 4rem;
    }
    
    h2 {
        font-size: 3.5rem;
    }
    
    .grid {
        grid-template-columns: repeat(5, 1fr);
        gap: 3rem;
    }
}

/* ===== SPECIFIC COMPONENT RESPONSIVE ===== */

/* Header responsive */
@media (max-width: 1023px) {
    #mainHeader {
        background-color: white !important;
        border-bottom: 1px solid #e5e7eb !important;
        position: sticky !important;
        top: 0 !important;
        z-index: 50 !important;
    }
    
    .header-logo {
        height: 2rem;
        width: 2rem;
    }
    
    .header-text {
        font-size: 0.875rem;
    }
    
    .header-icons {
        gap: 0.5rem;
    }
    
    .header-icon {
        padding: 0.5rem;
        font-size: 1rem;
    }
}

/* Navigation responsive */
@media (max-width: 1023px) {
    .nav-desktop {
        display: none !important;
    }
    
    .nav-mobile {
        display: flex !important;
    }
    
    .mobile-menu {
        position: fixed;
        top: 0;
        left: 0;
        width: 100%;
        height: 100vh;
        background-color: rgba(0, 0, 0, 0.5);
        z-index: 9999;
        opacity: 0;
        visibility: hidden;
        transition: all 0.3s ease;
    }
    
    .mobile-menu.active {
        opacity: 1;
        visibility: visible;
    }
    
    .mobile-menu-content {
        position: fixed;
        top: 0;
        left: 0;
        width: 80%;
        max-width: 320px;
        height: 100vh;
        background-color: white;
        transform: translateX(-100%);
        transition: transform 0.3s ease;
        overflow-y: auto;
        z-index: 10000;
    }
    
    .mobile-menu.active .mobile-menu-content {
        transform: translateX(0);
    }
}

/* Hero section responsive */
@media (max-width: 768px) {
    .hero-section {
        padding: 3rem 1rem;
        text-align: center;
    }
    
    .hero-title {
        font-size: 2.5rem;
        line-height: 1.2;
        margin-bottom: 1rem;
    }
    
    .hero-subtitle {
        font-size: 1.125rem;
        margin-bottom: 2rem;
    }
    
    .hero-buttons {
        flex-direction: column;
        gap: 1rem;
        align-items: center;
    }
    
    .hero-button {
        width: 100%;
        max-width: 300px;
        padding: 1rem 2rem;
        font-size: 1rem;
    }
}

/* Cards responsive */
@media (max-width: 768px) {
    .card {
        margin-bottom: 1.5rem;
    }
    
    .card-image {
        height: 200px;
        object-fit: cover;
    }
    
    .card-content {
        padding: 1rem;
    }
    
    .card-title {
        font-size: 1.25rem;
        margin-bottom: 0.5rem;
    }
    
    .card-description {
        font-size: 0.875rem;
        margin-bottom: 1rem;
    }
}

/* Forms responsive */
@media (max-width: 768px) {
    .form-group {
        margin-bottom: 1rem;
    }
    
    .form-label {
        font-size: 0.875rem;
        margin-bottom: 0.5rem;
    }
    
    .form-input,
    .form-select,
    .form-textarea {
        padding: 0.75rem;
        font-size: 1rem;
        border-radius: 0.5rem;
    }
    
    .form-button {
        width: 100%;
        padding: 1rem;
        font-size: 1rem;
        margin-top: 1rem;
    }
}

/* Grid responsive */
@media (max-width: 640px) {
    .grid-1 {
        grid-template-columns: 1fr;
    }
    
    .grid-2 {
        grid-template-columns: 1fr;
    }
    
    .grid-3 {
        grid-template-columns: 1fr;
    }
    
    .grid-4 {
        grid-template-columns: 1fr;
    }
}

@media (min-width: 641px) and (max-width: 768px) {
    .grid-2 {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .grid-3 {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .grid-4 {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (min-width: 769px) and (max-width: 1024px) {
    .grid-3 {
        grid-template-columns: repeat(3, 1fr);
    }
    
    .grid-4 {
        grid-template-columns: repeat(3, 1fr);
    }
}

@media (min-width: 1025px) {
    .grid-4 {
        grid-template-columns: repeat(4, 1fr);
    }
}

/* ===== UTILITY CLASSES ===== */

/* Spacing utilities */
.space-y-1 > * + * { margin-top: 0.25rem; }
.space-y-2 > * + * { margin-top: 0.5rem; }
.space-y-4 > * + * { margin-top: 1rem; }
.space-y-6 > * + * { margin-top: 1.5rem; }
.space-y-8 > * + * { margin-top: 2rem; }

.space-x-1 > * + * { margin-left: 0.25rem; }
.space-x-2 > * + * { margin-left: 0.5rem; }
.space-x-4 > * + * { margin-left: 1rem; }
.space-x-6 > * + * { margin-left: 1.5rem; }
.space-x-8 > * + * { margin-left: 2rem; }

/* Text utilities */
.text-xs { font-size: 0.75rem; }
.text-sm { font-size: 0.875rem; }
.text-base { font-size: 1rem; }
.text-lg { font-size: 1.125rem; }
.text-xl { font-size: 1.25rem; }
.text-2xl { font-size: 1.5rem; }
.text-3xl { font-size: 1.875rem; }
.text-4xl { font-size: 2.25rem; }

/* Padding utilities */
.p-1 { padding: 0.25rem; }
.p-2 { padding: 0.5rem; }
.p-4 { padding: 1rem; }
.p-6 { padding: 1.5rem; }
.p-8 { padding: 2rem; }

.px-1 { padding-left: 0.25rem; padding-right: 0.25rem; }
.px-2 { padding-left: 0.5rem; padding-right: 0.5rem; }
.px-4 { padding-left: 1rem; padding-right: 1rem; }
.px-6 { padding-left: 1.5rem; padding-right: 1.5rem; }
.px-8 { padding-left: 2rem; padding-right: 2rem; }

.py-1 { padding-top: 0.25rem; padding-bottom: 0.25rem; }
.py-2 { padding-top: 0.5rem; padding-bottom: 0.5rem; }
.py-4 { padding-top: 1rem; padding-bottom: 1rem; }
.py-6 { padding-top: 1.5rem; padding-bottom: 1.5rem; }
.py-8 { padding-top: 2rem; padding-bottom: 2rem; }

/* Margin utilities */
.m-1 { margin: 0.25rem; }
.m-2 { margin: 0.5rem; }
.m-4 { margin: 1rem; }
.m-6 { margin: 1.5rem; }
.m-8 { margin: 2rem; }

.mx-1 { margin-left: 0.25rem; margin-right: 0.25rem; }
.mx-2 { margin-left: 0.5rem; margin-right: 0.5rem; }
.mx-4 { margin-left: 1rem; margin-right: 1rem; }
.mx-6 { margin-left: 1.5rem; margin-right: 1.5rem; }
.mx-8 { margin-left: 2rem; margin-right: 2rem; }

.my-1 { margin-top: 0.25rem; margin-bottom: 0.25rem; }
.my-2 { margin-top: 0.5rem; margin-bottom: 0.5rem; }
.my-4 { margin-top: 1rem; margin-bottom: 1rem; }
.my-6 { margin-top: 1.5rem; margin-bottom: 1.5rem; }
.my-8 { margin-top: 2rem; margin-bottom: 2rem; }

/* ===== ACCESSIBILITY ===== */

/* Focus styles */
button:focus-visible,
a:focus-visible,
input:focus-visible,
select:focus-visible,
textarea:focus-visible {
    outline: 2px solid #3b82f6 !important;
    outline-offset: 2px !important;
}

/* Touch targets */
button,
a,
input[type="button"],
input[type="submit"],
input[type="reset"] {
    min-height: 44px;
    min-width: 44px;
}

/* ===== PERFORMANCE ===== */

/* Smooth transitions */
* {
    transition-property: color, background-color, border-color, text-decoration-color, fill, stroke, opacity, box-shadow, transform, filter, backdrop-filter;
    transition-timing-function: cubic-bezier(0.4, 0, 0.2, 1);
    transition-duration: 150ms;
}

/* Optimize animations */
@media (prefers-reduced-motion: reduce) {
    * {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
}

/* ===== PRINT STYLES ===== */

@media print {
    .no-print {
        display: none !important;
    }
    
    body {
        background: white !important;
        color: black !important;
    }
    
    a {
        color: black !important;
        text-decoration: underline !important;
    }
}