/* ============================================
   RESPONSIVE DESIGN UTILITIES
   ============================================ */

/* Root Variables for Responsive Design */
:root {
    --spacing-xs: 0.25rem;
    --spacing-sm: 0.5rem;
    --spacing-md: 1rem;
    --spacing-lg: 1.5rem;
    --spacing-xl: 2rem;
    --spacing-2xl: 3rem;
    --spacing-3xl: 4rem;
    --font-size-xs: 0.75rem;
    --font-size-sm: 0.875rem;
    --font-size-md: 1rem;
    --font-size-lg: 1.125rem;
    --font-size-xl: 1.25rem;
    --font-size-2xl: 1.5rem;
    --border-radius-sm: 0.25rem;
    --border-radius-md: 0.375rem;
    --border-radius-lg: 0.5rem;
}

/* ============================================
   MOBILE FIRST - BASE STYLES (Mobile Default)
   ============================================ */

html {
    font-size: 14px;
    scroll-behavior: smooth;
}

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    line-height: 1.6;
    word-wrap: break-word;
    overflow-x: hidden;
}

* {
    box-sizing: border-box;
}

/* Images Responsive */
img {
    max-width: 100%;
    height: auto;
    display: block;
}

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

/* ============================================
   CONTAINER RESPONSIVENESS
   ============================================ */

.container,
.container-sm,
.container-md,
.container-lg,
.container-xl,
.container-xxl {
    width: 100%;
    padding-right: var(--spacing-md);
    padding-left: var(--spacing-md);
    margin-right: auto;
    margin-left: auto;
}

/* Extra small devices (phones, < 576px) */
@media (max-width: 575.98px) {
    .container,
    .container-sm {
        max-width: 100%;
    }

    html {
        font-size: 13px;
    }

    body {
        padding-top: 70px;
    }

    .container,
    .container-fluid {
        padding-right: var(--spacing-sm);
        padding-left: var(--spacing-sm);
    }
}

/* Small devices (landscape phones, 576px and up) */
@media (min-width: 576px) {
    .container,
    .container-sm {
        max-width: 540px;
    }

    html {
        font-size: 14px;
    }
}

/* Medium devices (tablets, 768px and up) */
@media (min-width: 768px) {
    .container,
    .container-sm,
    .container-md {
        max-width: 720px;
    }

    html {
        font-size: 15px;
    }

    body {
        padding-top: 60px;
    }
}

/* Large devices (desktops, 992px and up) */
@media (min-width: 992px) {
    .container,
    .container-sm,
    .container-md,
    .container-lg {
        max-width: 960px;
    }

    html {
        font-size: 16px;
    }
}

/* Extra large devices (large desktops, 1200px and up) */
@media (min-width: 1200px) {
    .container,
    .container-sm,
    .container-md,
    .container-lg,
    .container-xl {
        max-width: 1140px;
    }
}

/* Extra extra large devices (1400px and up) */
@media (min-width: 1400px) {
    .container,
    .container-sm,
    .container-md,
    .container-lg,
    .container-xl,
    .container-xxl {
        max-width: 1320px;
    }
}

/* ============================================
   SPACING RESPONSIVE
   ============================================ */

/* Mobile Spacing */
.p-mobile { padding: var(--spacing-sm); }
.p-mobile-top { padding-top: var(--spacing-sm); }
.p-mobile-bottom { padding-bottom: var(--spacing-sm); }
.m-mobile { margin: var(--spacing-sm); }
.m-mobile-bottom { margin-bottom: var(--spacing-sm); }

/* Tablet and above */
@media (min-width: 768px) {
    .p-tablet { padding: var(--spacing-md); }
    .p-tablet-top { padding-top: var(--spacing-md); }
    .m-tablet { margin: var(--spacing-md); }
}

/* Desktop and above */
@media (min-width: 992px) {
    .p-desktop { padding: var(--spacing-lg); }
    .m-desktop { margin: var(--spacing-lg); }
}

/* ============================================
   TYPOGRAPHY RESPONSIVE
   ============================================ */

h1, .h1 {
    font-size: clamp(1.5rem, 5vw, 3rem);
    margin-bottom: var(--spacing-lg);
    line-height: 1.2;
}

h2, .h2 {
    font-size: clamp(1.25rem, 4vw, 2.5rem);
    margin-bottom: var(--spacing-md);
    line-height: 1.3;
}

h3, .h3 {
    font-size: clamp(1rem, 3vw, 2rem);
    margin-bottom: var(--spacing-md);
}

h4, .h4 {
    font-size: clamp(0.95rem, 2.5vw, 1.75rem);
}

h5, .h5 {
    font-size: clamp(0.9rem, 2vw, 1.5rem);
}

h6, .h6 {
    font-size: clamp(0.85rem, 1.5vw, 1.25rem);
}

p {
    margin-bottom: var(--spacing-md);
    word-break: break-word;
}

/* Small text */
small, .small {
    font-size: 0.85em;
}

/* ============================================
   NAVBAR RESPONSIVE
   ============================================ */

.navbar {
    padding: 0.5rem 0;
    min-height: auto;
}

.navbar-toggler {
    padding: 0.4rem 0.6rem;
}

.navbar-brand {
    font-size: clamp(1rem, 3vw, 1.4rem);
    padding: 0.5rem 0;
}

.navbar-nav {
    gap: 0.25rem;
}

.nav-link {
    padding: 0.5rem 1rem !important;
    font-size: clamp(0.875rem, 1.5vw, 1rem);
}

/* Mobile Menu */
@media (max-width: 991.98px) {
    .navbar-collapse {
        padding-top: 1rem;
        padding-bottom: 1rem;
        padding-left: 1.5rem; /* larger inset so content stays inside viewport */
        padding-right: 1.5rem;
        box-sizing: border-box;
    }

    .navbar-nav {
        text-align: center;
    }

    .nav-link {
        padding: 0.75rem 0 !important;
        border-radius: 6px;
        margin: 0.25rem 0;
    }

    .nav-link:hover {
        background: rgba(255, 255, 255, 0.1);
    }

    .dropdown-menu {
        text-align: center;
        margin-top: 0.5rem;
    }

    /* Slightly offset brand and ensure wrapping/fit inside the inset */
    .navbar-brand {
        display: inline-flex;
        align-items: center;
        gap: 0.5rem;
        margin-left: 0.5rem;
        padding-left: 0.25rem;
    }

    .navbar-brand i {
        flex: 0 0 auto;
        margin-right: 0.5rem;
    }

    .navbar-brand span,
    .navbar-brand {
        white-space: normal;
        word-break: break-word;
        overflow-wrap: anywhere;
    }

    /* When collapse is shown, ensure there's a visible inset so text doesn't touch viewport edge */
    .navbar-collapse.collapse.show {
        padding-left: 1.5rem;
        padding-right: 1.5rem;
    }

    /* Make absolute-positioned badges non-absolute on small screens to avoid overflow */
    .cart-badge,
    #wishlistCount,
    .wishlist-badge {
        position: relative !important;
        top: auto !important;
        right: auto !important;
        transform: none !important;
        margin-left: 0.4rem;
        display: inline-flex !important;
        align-items: center;
    }
}

/* Extra inset on smallest phones */
@media (max-width: 575.98px) {
    .navbar-collapse {
        padding-left: 1.75rem;
        padding-right: 1.75rem;
    }

    .navbar-brand {
        margin-left: 0.65rem;
    }
}

/* ============================================
   BUTTON RESPONSIVE
   ============================================ */

.btn {
    padding: 0.5rem 1rem;
    font-size: clamp(0.875rem, 1vw, 1rem);
    border-radius: 6px;
    transition: all 0.3s ease;
    white-space: nowrap;
}

.btn-sm {
    padding: 0.25rem 0.5rem;
    font-size: 0.75rem;
}

.btn-lg {
    padding: 0.75rem 1.5rem;
    font-size: 1.125rem;
}

/* Full width buttons on mobile */
@media (max-width: 575.98px) {
    .btn-block-mobile {
        display: block;
        width: 100%;
        margin-bottom: var(--spacing-sm);
    }

    .d-grid > .btn {
        margin-bottom: 0.5rem;
    }
}

/* ============================================
   CARD RESPONSIVE
   ============================================ */

.card {
    border: none;
    border-radius: 8px;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.08);
    transition: all 0.3s ease;
    margin-bottom: var(--spacing-md);
}

.card-body {
    padding: clamp(1rem, 3vw, 1.5rem);
}

.card-title {
    font-size: clamp(1rem, 2vw, 1.25rem);
    margin-bottom: var(--spacing-sm);
}

.card-text {
    font-size: clamp(0.875rem, 1.5vw, 1rem);
}

/* ============================================
   TABLE RESPONSIVE
   ============================================ */

.table-responsive {
    display: block;
    width: 100%;
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
    margin-bottom: var(--spacing-md);
}

.table {
    font-size: clamp(0.75rem, 1vw, 0.95rem);
    margin-bottom: 0;
}

.table th,
.table td {
    padding: clamp(0.5rem, 1vw, 1rem);
    white-space: nowrap;
}

/* Stacked table on mobile */
@media (max-width: 767.98px) {
    .table-stacked thead {
        display: none;
    }

    .table-stacked,
    .table-stacked tbody,
    .table-stacked tr,
    .table-stacked td {
        display: block;
        width: 100%;
    }

    .table-stacked tr {
        margin-bottom: var(--spacing-lg);
        border: 1px solid #ddd;
        border-radius: 4px;
        overflow: hidden;
    }

    .table-stacked td {
        text-align: right;
        padding-left: 50%;
        position: relative;
    }

    .table-stacked td::before {
        content: attr(data-label);
        position: absolute;
        left: 1rem;
        font-weight: bold;
        text-align: left;
    }
}

/* ============================================
   FORM RESPONSIVE
   ============================================ */

.form-control,
.form-select,
.input-group {
    font-size: clamp(0.875rem, 1vw, 1rem);
    width: 100%;
}

.form-control:focus,
.form-select:focus {
    border-color: #80bdff;
    box-shadow: 0 0 0 0.2rem rgba(0, 123, 255, 0.25);
}

.form-group,
.mb-3 {
    margin-bottom: var(--spacing-lg);
}

.input-group > .form-control {
    flex: 1;
}

/* Mobile form labels */
@media (max-width: 575.98px) {
    label {
        margin-bottom: var(--spacing-sm);
    }

    .form-group {
        margin-bottom: var(--spacing-md);
    }

    .form-label {
        font-weight: 600;
        margin-bottom: 0.5rem;
    }
}

/* ============================================
   MODAL RESPONSIVE
   ============================================ */

.modal-dialog {
    max-width: clamp(280px, 95vw, 500px);
    margin: auto;
}

.modal-content {
    border-radius: 12px;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.2);
}

.modal-body {
    padding: clamp(1rem, 3vw, 2rem);
}

.modal-header,
.modal-footer {
    padding: clamp(1rem, 2vw, 1.5rem);
}

/* ============================================
   GRID RESPONSIVE
   ============================================ */

.grid-responsive {
    display: grid;
    gap: var(--spacing-md);
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
}

@media (max-width: 575.98px) {
    .grid-responsive {
        grid-template-columns: 1fr;
        gap: var(--spacing-sm);
    }
}

@media (min-width: 576px) and (max-width: 767.98px) {
    .grid-responsive {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (min-width: 768px) {
    .grid-responsive {
        grid-template-columns: repeat(3, 1fr);
    }
}

@media (min-width: 1200px) {
    .grid-responsive {
        grid-template-columns: repeat(4, 1fr);
    }
}

/* ============================================
   FLEXBOX RESPONSIVE
   ============================================ */

.flex-mobile-column {
    display: flex;
    flex-direction: column;
}


@media (min-width: 768px) {
    .flex-mobile-column {
        flex-direction: row;
    }
}

/* ============================================
   VISIBILITY RESPONSIVE
   ============================================ */

.hide-mobile {
    display: none !important;
}

.hide-tablet {
    display: block !important;
}

.hide-desktop {
    display: block !important;
}

@media (min-width: 576px) {
    .hide-mobile {
        display: block !important;
    }

    .hide-tablet {
        display: none !important;
    }
}

@media (min-width: 992px) {
    .hide-tablet {
        display: block !important;
    }

    .hide-desktop {
        display: none !important;
    }
}

/* ============================================
   FOOTER RESPONSIVE
   ============================================ */

.footer {
    padding: clamp(1.5rem, 3vw, 2.5rem) 0;
    margin-top: var(--spacing-3xl);
}

.footer-links {
    display: grid;
    gap: var(--spacing-lg);
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
}

@media (max-width: 575.98px) {
    .footer-links {
        grid-template-columns: 1fr;
        text-align: center;
    }

    .footer {
        padding: var(--spacing-lg) 0;
    }
}

/* ============================================
   PADDING & MARGIN UTILITIES (Mobile First)
   ============================================ */

/* Responsive padding */
.p-responsive {
    padding: var(--spacing-sm);
}

.px-responsive {
    padding-left: var(--spacing-sm);
    padding-right: var(--spacing-sm);
}

.py-responsive {
    padding-top: var(--spacing-sm);
    padding-bottom: var(--spacing-sm);
}

@media (min-width: 768px) {
    .p-responsive {
        padding: var(--spacing-md);
    }

    .px-responsive {
        padding-left: var(--spacing-md);
        padding-right: var(--spacing-md);
    }

    .py-responsive {
        padding-top: var(--spacing-md);
        padding-bottom: var(--spacing-md);
    }
}

@media (min-width: 992px) {
    .p-responsive {
        padding: var(--spacing-lg);
    }

    .px-responsive {
        padding-left: var(--spacing-lg);
        padding-right: var(--spacing-lg);
    }

    .py-responsive {
        padding-top: var(--spacing-lg);
        padding-bottom: var(--spacing-lg);
    }
}

/* Responsive margin */
.m-responsive {
    margin: var(--spacing-sm);
}

.mx-responsive {
    margin-left: var(--spacing-sm);
    margin-right: var(--spacing-sm);
}

.my-responsive {
    margin-top: var(--spacing-sm);
    margin-bottom: var(--spacing-sm);
}

@media (min-width: 768px) {
    .m-responsive {
        margin: var(--spacing-md);
    }

    .mx-responsive {
        margin-left: var(--spacing-md);
        margin-right: var(--spacing-md);
    }

    .my-responsive {
        margin-top: var(--spacing-md);
        margin-bottom: var(--spacing-md);
    }
}

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

/* Responsive images */
.img-responsive {
    max-width: 100%;
    height: auto;
}

.img-cover {
    object-fit: cover;
}

.img-contain {
    object-fit: contain;
}

/* Aspect ratio */
.aspect-ratio-1-1 {
    aspect-ratio: 1 / 1;
}

.aspect-ratio-16-9 {
    aspect-ratio: 16 / 9;
}

.aspect-ratio-4-3 {
    aspect-ratio: 4 / 3;
}

/* Text utilities */
.text-clamp-1 {
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.text-clamp-2 {
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
    text-overflow: ellipsis;
}

.text-clamp-3 {
    display: -webkit-box;
    -webkit-line-clamp: 3;
    -webkit-box-orient: vertical;
    overflow: hidden;
    text-overflow: ellipsis;
}

/* Responsive display */
@media (max-width: 575.98px) {
    .d-none-mobile {
        display: none !important;
    }

    .d-block-mobile {
        display: block !important;
    }

    .text-center-mobile {
        text-align: center;
    }
}

@media (min-width: 576px) and (max-width: 767.98px) {
    .d-none-tablet {
        display: none !important;
    }

    .d-block-tablet {
        display: block !important;
    }
}

@media (min-width: 768px) {
    .d-none-desktop {
        display: none !important;
    }

    .d-block-desktop {
        display: block !important;
    }
}

/* ============================================
   TOUCH FRIENDLY ELEMENTS
   ============================================ */

@media (max-width: 1024px) {
    /* Increase touch target size for buttons/links */
    .btn,
    a,
    button,
    .nav-link,
    .dropdown-item {
        min-height: 44px;
        min-width: 44px;
        display: inline-flex;
        align-items: center;
        justify-content: center;
    }

    /* Increase spacing between clickable elements */
    .btn + .btn {
        margin-left: 0.5rem;
    }
}

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

@media print {
    body {
        background: white;
    }

    .navbar,
    .footer,
    .no-print {
        display: none !important;
    }

    .container {
        max-width: 100%;
    }

    a {
        text-decoration: underline;
    }
}

/* ============================================
   ORIENTATION CHANGES
   ============================================ */

@media (orientation: landscape) and (max-height: 500px) {
    h1, .h1 {
        font-size: 1.5rem;
    }

    .navbar {
        min-height: 50px;
    }
}

@media (orientation: portrait) {
    body {
        padding-top: 70px;
    }
}