/* Mobile First Base Styles */
* {
    box-sizing: border-box;
}

/* Typography Scale for Mobile */
:root {
    --font-size-base: 16px;
    --font-size-lg: 18px;
    --font-size-xl: 20px;
    --font-size-2xl: 24px;
    --font-size-3xl: 28px;
    --spacing-xs: 4px;
    --spacing-sm: 8px;
    --spacing-md: 16px;
    --spacing-lg: 24px;
    --spacing-xl: 32px;
}

/* Mobile Base Container */
.ud-dictionary-container {
    width: 100%;
    padding: var(--spacing-md);
    max-width: 100%;
}

/* Mobile Search */

.ud-search-input {
    flex: 1;
    padding: 12px 16px;
    font-size: var(--font-size-base);
    border: 2px solid #ddd;
    border-radius: 25px;
    -webkit-appearance: none;
    appearance: none;
}

.ud-search-button {
    min-width: 50px;
    width: 50px;
    height: 48px;
    padding: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    background: #1976d2;
    color: white;
    border: none;
    border-radius: 50%;
}

/* Mobile Alphabet Filters */

.ud-filter-section h4 {
    font-size: var(--font-size-lg);
    margin-bottom: var(--spacing-md);
}

.ud-alphabet-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(40px, 1fr));
    gap: var(--spacing-xs);
}

.ud-letter-btn {
    min-height: 40px;
    padding: var(--spacing-sm);
    font-size: var(--font-size-base);
    border: 2px solid #ddd;
    background: white;
    border-radius: 5px;
    cursor: pointer;
    transition: all 0.2s;
    touch-action: manipulation;
    -webkit-tap-highlight-color: transparent;
}

.ud-letter-btn:active {
    transform: scale(0.95);
}

.ud-letter-btn[data-type="urdu"] {
    font-family: 'Noto Nastaliq Urdu', serif;
    font-size: var(--font-size-lg);
}

/* Mobile Word Cards */
.ud-words-list {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
}

.ud-word-card {
    background: white;
    border: 1px solid #e0e0e0;
    border-radius: 10px;
    padding: var(--spacing-md);
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.05);
}

.ud-word-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--spacing-sm);
}

.ud-word-main {
    margin-bottom: var(--spacing-md);
}

.ud-urdu-word {
    font-size: var(--font-size-2xl);
    color: #1976d2;
    font-weight: bold;
    margin-bottom: var(--spacing-xs);
    line-height: 1.6;
    direction: rtl;
    text-align: right;
}

.ud-roman-word {
    font-size: var(--font-size-2xl);
    color: #fff;
    font-weight: 500;
}

.ud-meanings-section>.ud-meanings-label {
    font-size: 16px;
}

.ud-meanings {
    background: #f8f9fa;
    padding: var(--spacing-md);
    border-radius: 8px;
}

.ud-meaning-item {
    display: flex;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-sm);
    font-size: var(--font-size-base);
}

.ud-meaning-item:last-child {
    margin-bottom: 0;
}

/* Mobile Load More */
.ud-load-more-container {
    text-align: center;
    margin-top: var(--spacing-xl);
    padding-bottom: var(--spacing-lg);
}

.ud-load-more {
    padding: 14px 32px;
    font-size: var(--font-size-base);
    background: #1976d2;
    color: white;
    border: none;
    border-radius: 25px;
    min-width: 160px;
}

/* Tablet Styles (768px and up) */
@media (min-width: 768px) {
    :root {
        --font-size-base: 16px;
        --font-size-lg: 18px;
        --font-size-xl: 22px;
        --font-size-2xl: 26px;
        --font-size-3xl: 32px;
    }

    .ud-dictionary-container {
        padding: var(--spacing-lg);
    }

    .ud-alphabet-grid {
        grid-template-columns: repeat(auto-fill, minmax(50px, 1fr));
        gap: var(--spacing-sm);
    }

    .ud-letter-btn {
        min-height: 48px;
    }

    .ud-words-list {
        display: grid;
        grid-template-columns: repeat(2, 1fr);
        gap: var(--spacing-lg);
    }

    .ud-word-main {
        display: grid;
        /* grid-template-columns: 1fr 1fr; */
        gap: var(--spacing-lg);
        align-items: center;
    }
}

/* Desktop Styles (1024px and up) */
@media (min-width: 1024px) {
    .ud-dictionary-container {
        max-width: 1200px;
        margin: 0 auto;
        padding: var(--spacing-xl);
    }

    .ud-search-input {
        max-width: 600px;
    }

    .ud-alphabet-filters {
        display: flex;
        gap: var(--spacing-xl);
        padding: var(--spacing-xl);
    }

    .ud-filter-section {
        flex: 1;
    }

    .ud-alphabet-grid {
        grid-template-columns: repeat(auto-fill, minmax(60px, 1fr));
    }

    .ud-words-list {
        /* grid-template-columns: 1fr; */
    }
}

/* Touch-Friendly Interactions */
@media (hover: none) and (pointer: coarse) {

    .ud-letter-btn,
    .ud-search-button,
    .ud-load-more {
        min-height: 44px;
        min-width: 44px;
    }

    .ud-word-card {
        cursor: pointer;
        -webkit-tap-highlight-color: transparent;
    }

    .ud-word-card:active {
        background: #f5f5f5;
    }
}

/* Landscape Mobile Adjustments */
@media (max-width: 767px) and (orientation: landscape) {
    .ud-alphabet-grid {
        grid-template-columns: repeat(auto-fill, minmax(36px, 1fr));
    }

    .ud-letter-btn {
        min-height: 36px;
        font-size: 14px;
    }
}

/* High DPI Screens */
@media (-webkit-min-device-pixel-ratio: 2),
(min-resolution: 192dpi) {
    .ud-word-card {
        border-width: 0.5px;
    }
}

/* Dark Mode Support */
@media (prefers-color-scheme: dark) {
    .ud-dictionary-container {
        background: #121212;
        color: #e0e0e0;
    }

    .ud-word-card {
        background: #1e1e1e;
        border-color: #333;
    }

    .ud-search-input {
        background: #2a2a2a;
        border-color: #444;
        color: #e0e0e0;
        min-width: 150px;
        padding: 10px 16px;
    }

    .ud-meanings {
        background: #2a2a2a;
    }

    .ud-letter-btn {
        background: #2a2a2a;
        border-color: #444;
        color: #e0e0e0;
    }

    .ud-letter-btn.active {
        background: #1976d2;
        border-color: #1976d2;
    }
}

/* Print Styles */
@media print {

    .ud-search-container,
    .ud-alphabet-filters,
    .ud-load-more-container {
        display: none;
    }

    .ud-word-card {
        break-inside: avoid;
        border: 1px solid #000;
        margin-bottom: 10px;
    }

    .ud-urdu-word {
        color: #000;
    }
}

/* Accessibility Improvements */
.ud-letter-btn:focus,
.ud-search-input:focus,
.ud-load-more:focus {
    outline: 3px solid #1976d2;
    outline-offset: 2px;
}

/* Loading States */
.ud-loading {
    text-align: center;
    padding: var(--spacing-xl);
    color: #666;
}

.ud-spinner {
    display: inline-block;
    width: 24px;
    height: 24px;
    border: 3px solid #f3f3f3;
    border-top: 3px solid #1976d2;
    border-radius: 50%;
    animation: ud-spin 1s linear infinite;
}

/* Animations */
@keyframes ud-spin {
    0% {
        transform: rotate(0deg);
    }

    100% {
        transform: rotate(360deg);
    }
}

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(10px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.ud-word-card {
    animation: fadeIn 0.3s ease-out;
}

/* Sticky Search on Mobile */
@media (max-width: 767px) {
    .ud-search-container {
        position: sticky;
        top: 0;
        background: #1e1e1e;
        z-index: 100;
        padding: 10px;
        margin: -var(--spacing-md) -var(--spacing-md) var(--spacing-lg) -var(--spacing-md);
        box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
        border: 1px solid #333;
        border-radius: 10px;
        margin-bottom: 20px;
        display: block;
    }

    .ud-search-form {
        width: auto;
        margin-bottom: 10px;
    }

    button.ud-toggle-filters {
        margin: 0px auto;
    }
}

/* Safe Area Insets for Modern Phones */
@supports (padding: env(safe-area-inset-bottom)) {
    .ud-dictionary-container {
        padding-left: max(var(--spacing-md), env(safe-area-inset-left));
        padding-right: max(var(--spacing-md), env(safe-area-inset-right));
        padding-bottom: max(var(--spacing-md), env(safe-area-inset-bottom));
    }
}