:root {
    /* Color System - Light Theme */
    --primary-color: #C42B00;
    --on-primary: #FFFFFF;
    --primary-container: #FFDAD2;
    --on-primary-container: #410900;
    
    --secondary-color: #FF5D38;
    --on-secondary: #FFFFFF;
    --secondary-container: #FFE4DE;
    --on-secondary-container: #3F0B00;
    
    --surface: #FFFFFF;
    --on-surface: #1F2937;
    --surface-variant: #F3F4F6;
    --on-surface-variant: #4B5563;
    
    --background: #F9FAFB;
    --on-background: #1F2937;
    
    --outline: #9CA3AF;
    --outline-variant: #E5E7EB;
    
    /* Elevation & Effects */
    --md-elevation-level1: 0 2px 4px rgba(0,0,0,0.05), 0 1px 2px rgba(0,0,0,0.1);
    --md-elevation-level2: 0 4px 6px rgba(0,0,0,0.05), 0 2px 4px rgba(0,0,0,0.1);
    --md-elevation-level3: 0 10px 15px rgba(0,0,0,0.05), 0 4px 6px rgba(0,0,0,0.1);
    
    /* Interaction States */
    --state-hover: rgba(196, 43, 0, 0.08);
    --state-focus: rgba(196, 43, 0, 0.12);
    --state-pressed: rgba(196, 43, 0, 0.16);
    --state-dragged: rgba(196, 43, 0, 0.16);
    
    /* Animation Timing */
    --motion-duration-short: 100ms;
    --motion-duration-medium: 200ms;
    --motion-duration-long: 300ms;
    --motion-easing-standard: cubic-bezier(0.4, 0, 0.2, 1);
    
    /* Typography */
    --font-family: 'Cairo', system-ui, sans-serif;
    --type-scale-sm: 0.875rem;
    --type-scale-base: 1rem;
    --type-scale-lg: 1.125rem;
    --type-scale-xl: 1.25rem;
    --type-scale-2xl: 1.5rem;
    --type-scale-3xl: 1.875rem;
    
    /* Spacing System */
    --spacing-unit: 0.25rem;
    --spacing-xs: calc(var(--spacing-unit) * 1);
    --spacing-sm: calc(var(--spacing-unit) * 2);
    --spacing-md: calc(var(--spacing-unit) * 4);
    --spacing-lg: calc(var(--spacing-unit) * 6);
    --spacing-xl: calc(var(--spacing-unit) * 8);
    
    /* Border Radius */
    --radius-sm: 0.375rem;
    --radius-md: 0.5rem;
    --radius-lg: 0.75rem;
    --radius-xl: 1rem;
    --radius-2xl: 1.5rem;
    --radius-full: 9999px;
}

[data-theme="dark"] {
    /* Color System - Dark Theme */
    --primary-color: #e8e8e8;
    --on-primary: #121212;
    --primary-container: #31111D;
    --on-primary-container: #1ec12e;
    
    --secondary-color: #ffffff;
    --on-secondary: #121212;
    --secondary-container: #4F1539;
    --on-secondary-container: #ffffff;
    
    --surface: #121212;
    --on-surface: #E0E0E0;
    --surface-variant: #1E1E1E;
    --on-surface-variant: #CCCCCC;
    
    --background: #121212;
    --on-background: #E0E0E0;
    
    --outline: #2A2A2A;
    --outline-variant: #2F2F2F;
    
    /* Elevation Colors with Transparency */
    --elevation-1: rgba(255, 255, 255, 0.05);
    --elevation-2: rgba(255, 255, 255, 0.08);
    --elevation-3: rgba(255, 255, 255, 0.11);
    
    /* Glow Effects */
    --glow-primary: 0 0 20px rgba(255, 117, 151, 0.3);
    --glow-secondary: 0 0 20px rgba(255, 83, 165, 0.3);
    
    /* State Colors - Dark */
    --state-hover: rgba(255, 117, 151, 0.12);
    --state-focus: rgba(255, 117, 151, 0.16);
    --state-pressed: rgba(255, 117, 151, 0.2);
    --state-dragged: rgba(255, 117, 151, 0.2);
    
    /* Custom Shadow Effects */
    --shadow-button: 0 4px 12px rgba(255, 117, 151, 0.2);
    --shadow-card: 0 8px 24px rgba(0, 0, 0, 0.4);
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    transition: background-color 0.3s, color 0.3s;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Cairo', sans-serif;
    background-color: var(--md-sys-color-surface);
    color: var(--md-sys-color-on-surface);
    line-height: 1.6;
    transition: background-color 0.3s ease, color 0.3s ease;
    min-height: 100vh;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 1rem;
    position: relative;
    z-index: 1;
}

.container::before {
    content: '';
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, 
        var(--primary-container) 0%, 
        transparent 100%);
    opacity: 0.1;
    z-index: -1;
}

h1 {
    text-align: center;
    margin: 2rem 0;
    color: var(--md-sys-color-primary);
    font-weight: 700;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    font-size: 1.75rem;
}

.converter-box {
    background-color: var(--surface);
    border-radius: var(--radius-2xl);
    padding: var(--spacing-xl);
    border: 1px solid var(--outline-variant);
    box-shadow: var(--md-elevation-level2);
    max-width: 1200px;
    margin: 2rem auto;
    backdrop-filter: blur(10px);
}


.converter-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
}

.input-section, .output-section {
    margin-bottom: 0;
    display: flex;
    flex-direction: column;
    height: 100%;
    min-width: 0; 
    gap: 1rem;
}

.input-section {
    border-left: 1px solid var(--border-color);
    padding-left: 2rem;
}

.output-section {
    padding-right: 2rem;
}

textarea {
    background-color: var(--surface);
    color: var(--on-surface);
    border: 1px solid var(--outline-variant);
    border-radius: var(--radius-lg);
    padding: var(--spacing-md);
    font-family: var(--font-family);
    font-size: var(--type-scale-base);
    line-height: 1.6;
    transition: all var(--motion-duration-medium) var(--motion-easing-standard);
    box-shadow: var(--md-elevation-level1);
    width: 100%;
    resize: vertical; 
    direction: rtl;
    height: 250px; 
    flex: 1;
    min-height: 200px; 
    max-height: 400px; 
    overflow: auto;
    -webkit-overflow-scrolling: touch;
}


textarea::selection {
    background-color: var(--primary-color);
    color: white;
}

textarea::-moz-selection {
    background-color: var(--primary-color);
    color: white;
}

textarea:focus {
    border-color: var(--primary-color);
    box-shadow: 0 0 0 4px var(--primary-container);
    outline: none;
}


textarea[readonly] {
    background-color: var(--bg-color);
    opacity: 0.9;
    cursor: default;
}

textarea[readonly]:focus {
    border-color: var(--border-color);
    transform: none;
    box-shadow: none;
}


.controls {
    display: none;
}

button {
    padding: 0.8rem 1.5rem;
    border: none;
    border-radius: 8px;
    cursor: pointer;
    font-size: 1rem;
    transition: all 0.3s ease;
    font-family: 'Cairo', sans-serif;
    font-weight: 600;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.main-btn {
    display: none;
}


.action-buttons {
    display: flex;
    gap: 1rem;
    margin-top: 1rem;
    padding: 1rem 0;
    border-top: 1px solid var(--border-color);
    flex-wrap: wrap;
}

.action-btn {
    position: relative;
    padding: 0.75rem 1.5rem;
    border-radius: var(--radius-lg);
    font-weight: 600;
    font-size: var(--type-scale-base);
    letter-spacing: 0.01em;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    cursor: pointer;
    transition: all var(--motion-duration-medium) var(--motion-easing-standard);
    overflow: hidden;
}

.action-btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-color: currentColor;
    border-radius: inherit;
    opacity: 0;
    transition: opacity var(--motion-duration-medium) var(--motion-easing-standard);
}

.action-btn:hover::before {
    opacity: 0.08;
}

.action-btn:active::before {
    opacity: 0.16;
}

.copy-btn {
    background-color: var(--primary-color);
    color: var(--on-primary);
    box-shadow: var(--md-elevation-level1);
}

.copy-btn:hover {
    box-shadow: var(--md-elevation-level2);
    transform: translateY(-1px);
}

.copy-btn:active {
    box-shadow: var(--md-elevation-level1);
    transform: translateY(0);
}

.clear-btn {
    background-color: transparent;
    color: var(--on-surface);
    border: 2px solid var(--outline);
}

.clear-btn:hover {
    border-color: var(--primary-color);
    color: var(--primary-color);
}


.action-btn:focus {
    outline: none;
    box-shadow: 0 0 0 3px var(--bg-color), 0 0 0 6px var(--primary-color);
}

.action-btn:active {
    transform: translateY(0) !important;
}

.copy-btn:focus {
    box-shadow: 0 0 0 3px var(--bg-color), 0 0 0 6px var(--success-color);
}

.clear-btn:focus {
    box-shadow: 0 0 0 3px var(--bg-color), 0 0 0 6px var(--danger-color);
}

.action-btn[disabled] {
    opacity: 0.6;
    cursor: not-allowed;
    transform: none !important;
}


.theme-switch-wrapper {
    display: flex;
    align-items: center;
    justify-content: flex-end;
    margin-bottom: 0;
    padding-top: 0;
}

.theme-switch {
    display: inline-block;
    height: 30px;
    position: relative;
    width: 54px;
    margin-top: 0;
    opacity: 0.9;
    transition: opacity 0.3s ease, transform 0.3s ease;
}

.theme-switch:hover {
    opacity: 1;
    transform: translateY(-1px);
}

.theme-switch:active {
    transform: translateY(0);
}

.theme-switch input {
    display: none;
}

.slider {
    background-color: var(--md-sys-color-surface-variant);
    bottom: 0;
    cursor: pointer;
    left: 0;
    position: absolute;
    right: 0;
    top: 0;
    transition: .4s;
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 0.4rem;
    border: 2px solid var(--border-color);
    box-shadow: inset 0 1px 3px rgba(0, 0, 0, 0.1);
}

.slider:before {
    background-color: var(--md-sys-color-primary);
    bottom: 2px;
    content: "";
    height: 22px;
    left: 2px;
    position: absolute;
    transition: .4s;
    width: 22px;
    z-index: 1;
    border-radius: 50%;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.15);
}

.slider .fa-sun, .slider .fa-moon {
    color: var(--md-sys-color-on-surface);
    font-size: 0.85rem;
    z-index: 0;
    transition: transform 0.3s ease;
}

input:checked + .slider {
    background-color: #2d3436;
}

input:checked + .slider:before {
    transform: translateX(26px);
}

input:checked + .slider .fa-sun {
    transform: rotate(180deg);
}

input:checked + .slider .fa-moon {
    transform: rotate(-180deg);
}

.slider.round {
    border-radius: 34px;
}

.slider.round:before {
    border-radius: 50%;
}

.theme-switch-wrapper em {
    margin-right: 10px;
    font-style: normal;
    font-size: 0.9rem;
}

/* Footer styles */
.footer {
    margin-top: 3rem;
    text-align: center;
    padding: 1rem 0;
    border-top: 1px solid var(--border-color);
    color: var(--md-sys-color-outline);
}

.copyright {
    font-size: 0.9rem;
    color: var(--text-color);
}

.copyright p {
    margin: 0.5rem 0;
}

.designer-link {
    color: var(--md-sys-color-primary);
    text-decoration: none;
    font-weight: bold;
    transition: opacity 0.3s ease;
}

.designer-link:hover {
    text-decoration: underline;
}

.navbar {
    display: flex;
    align-items: center;
    justify-content: flex-end;
    padding: 1rem;
    background-color: var(--md-sys-color-surface);
    border-bottom: 1px solid var(--border-color);
    position: sticky;
    top: 0;
    z-index: 1000;
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
    transition: box-shadow 0.3s ease, background-color 0.3s ease;
    box-shadow: var(--md-elevation-level1);
}

.navbar.scrolled {
    box-shadow: var(--md-elevation-level2);
    background-color: var(--container-bg);
}


.nav-controls {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.about-btn {
    background-color: var(--md-sys-color-primary);
    color: var (--md-sys-color-on-primary);
    padding: 0.5rem 1rem;
    border-radius: 8px;
    font-weight: 600;
    transition: all 0.3s ease;
    box-shadow: var(--md-elevation-level1);
}

.about-btn:hover {
    transform: translateY(-2px);
    box-shadow: var(--md-elevation-level2);
    opacity: 0.9;
}

/* Modal styles */
.modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.5);
    z-index: 1000;
    opacity: 0;
    transition: opacity 0.3s ease;
    backdrop-filter: blur(4px);
}

.modal.show {
    display: flex;
    opacity: 1;
}

.modal-content {
    background-color: #000000;
    border-radius: 16px;
    width: 90%;
    max-width: 600px;
    margin: auto;
    position: relative;
    transform: translateY(-20px);
    opacity: 0;
    transition: all 0.3s ease;
    box-shadow: var(--md-elevation-level2);
}

.modal.show .modal-content {
    transform: translateY(0);
    opacity: 1;
}

.modal-header {
    padding: 1.5rem;
    border-bottom: 1px solid #333333;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.modal-header h2 {
    color: #FFFFFF;
    font-size: 1.5rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    margin: 0;
}

.modal-body {
    padding: 1.5rem;
    max-height: 70vh;
    overflow-y: auto;
}

.modal-body h3 {
    color: #FFFFFF;
    margin: 1.5rem 0 1rem;
    font-size: 1.2rem;
}

.modal-body h3:first-child {
    margin-top: 0;
}

.modal-body p {
    margin-bottom: 1rem;
    line-height: 1.6;
    color: #FFFFFF;
}

.modal-body ul {
    list-style: none;
    padding: 0;
    margin: 1rem 0;
}

.modal-body li {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    margin: 0.75rem 0;
    color: #FFFFFF;
}

.modal-body li i {
    color: var(--primary-color);
}

.version-info {
    margin-top: 2rem;
    padding-top: 1rem;
    border-top: 1px solid #333333;
    color: #FFFFFF;
    font-size: 0.9rem;
}

.close-btn {
    background: transparent;
    border: none;
    color: #FFFFFF;
    padding: 0.5rem;
    cursor: pointer;
    border-radius: 50%;
    width: 36px;
    height: 36px;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.3s ease;
}

.close-btn:hover {
    background-color: rgba(255, 255, 255, 0.1);
    transform: rotate(90deg);
}

/* Dark mode adjustments for modal */
[data-theme="dark"] .modal-content {
    background-color: #000000;
    border: 1px solid #333333;
}

[data-theme="dark"] .modal-header {
    border-bottom-color: #333333;
}

[data-theme="dark"] .version-info {
    border-top-color: #333333;
}


::-webkit-scrollbar {
    width: 10px;
}

::-webkit-scrollbar-track {
    background: var(--bg-color);
}

::-webkit-scrollbar-thumb {
    background: var(--border-color);
    border-radius: 5px;
    border: 2px solid var(--bg-color);
}

::-webkit-scrollbar-thumb:hover {
    background: var(--primary-color);
}

textarea::-webkit-scrollbar {
    width: 8px;
}

@keyframes clearing {
    0% {
        transform: scale(1);
        opacity: 1;
    }
    50% {
        transform: scale(0.98);
        opacity: 0.8;
    }
    100% {
        transform: scale(1);
        opacity: 1;
    }
}

textarea.clearing {
    animation: clearing 0.45s ease-in-out;
}


.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
}


@media (hover: none) {
    .action-btn {
        padding: 1rem;
    }

    .theme-switch {
        height: 36px;
        width: 64px;
    }

    .slider:before {
        height: 28px;
        width: 28px;
    }

    textarea {
        padding: 1.2rem;
    }
}

/* Disable hover effects on touch devices */
@media (hover: none) {
    .action-btn:hover {
        transform: none;
    }

    .theme-switch:hover {
        transform: none;
    }
}

@media (max-width: 600px) {
    .controls {
        flex-direction: column;
        align-items: stretch;
    }
    
    .container {
        margin: 1rem auto;
    }
    
    .converter-box {
        padding: 1rem;
    }
    
    .action-buttons {
        flex-direction: column;
    }
}


@media (max-width: 768px) {
    .converter-grid {
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }

    .input-section {
        border-left: none;
        border-bottom: 1px solid var(--border-color);
        padding-left: 0;
        padding-bottom: 1.5rem;
    }

    .output-section {
        padding-right: 0;
        padding-top: 1.5rem;
    }

    textarea {
        height: 200px;
        min-height: 150px;
    }

    .action-buttons {
        flex-direction: column;
    }
    
    .share-buttons {
        justify-content: center;
    }
}

@media (max-width: 480px) {
    textarea {
        font-size: 1rem;
        line-height: 1.6;
        height: 180px;
        min-height: 120px;
    }
    
    .container {
        padding: 0 1rem;
    }
}

/* Theme switching animation */
.theme-switching {
    position: relative;
    overflow: hidden;
}

.theme-switching::after {
    content: '';
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: var(--bg-color);
    z-index: 9999;
    pointer-events: none;
    opacity: 0;
    animation: themeFade 0.5s ease-in-out;
}

@keyframes themeFade {
    0% { opacity: 0; }
    50% { opacity: 0.15; }
    100% { opacity: 0; }
}

/* Animations */
@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

.clearing {
    animation: fadeOut 0.3s ease;
}

@keyframes fadeOut {
    from { opacity: 1; }
    to { opacity: 0; }
}

/* Accessibility */
.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    border: 0;
}


.main-title {
    text-align: center;
    margin: 2rem 0;
    padding: 2rem;
    color: var(--md-sys-color-primary);
    font-weight: 700;
    font-size: 2.5rem;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 1rem;
    text-shadow: 0 2px 4px rgba(0,0,0,0.1);
}


.instructions-card {
    background-color: var(--surface);
    border-radius: var(--radius-xl);
    padding: var(--spacing-xl);
    border: 1px solid var(--outline-variant);
    box-shadow: var(--md-elevation-level1);
    transition: all var(--motion-duration-medium) var(--motion-easing-standard);
}

.instructions-card:hover {
    transform: translateY(-2px);
    box-shadow: var(--md-elevation-level2);
}

.instructions-card h3 {
    color: var(--md-sys-color-primary);
    margin-bottom: 1.5rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 1.4rem;
}

.instructions-card ul {
    list-style: none;
    padding: 0;
}

.instructions-card li {
    margin: 1rem 0;
    padding: 0.5rem 0;
    display: flex;
    align-items: center;
    gap: 1rem;
    font-size: 1.1rem;
    color: var(--md-sys-color-on-surface);
}

.instructions-card li i {
    color: var(--md-sys-color-primary);
    width: 24px;
    text-align: center;
}


.social-links {
    display: flex;
    justify-content: center;
    gap: 1.5rem;
    margin-bottom: 1.5rem;
}

.social-link {
    color: var(--md-sys-color-on-surface);
    font-size: 1.5rem;
    padding: 0.8rem;
    border-radius: 50%;
    background-color: var(--md-sys-color-surface-variant);
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.3s ease;
    width: 50px;
    height: 50px;
}

.social-link:hover {
    color: var(--md-sys-color-on-primary);
    background-color: var(--md-sys-color-primary);
    transform: translateY(-3px);
}


.notification {
    position: fixed;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%) translateY(-100vh);
    background-color: var(--notification-bg);
    color: var(--notification-text);
    padding: 1rem 2rem;
    border-radius: 12px;
    box-shadow: var(--md-elevation-level2);
    z-index: 1000;
    display: flex;
    align-items: center;
    gap: 0.75rem;
    opacity: 0;
    transition: transform 0.5s var(--motion-easing-standard), opacity 0.3s ease;
    min-width: 200px;
    justify-content: center;
}

.notification.show {
    transform: translate(-50%, -50%);
    opacity: 1;
}

.notification i {
    font-size: 1.2rem;
}

[data-theme="dark"] .notification {
    background-color: var(--surface);
    color: var(--on-surface);
    border: 1px solid var(--outline);
    box-shadow: var(--shadow-card), var(--glow-primary);
}


[data-theme="dark"] {
    background-color: var(--dark-bg);
}

[data-theme="dark"] .converter-box {
    background-color: var(--md-sys-color-surface);
    border-color: var(--md-sys-color-outline);
}

[data-theme="dark"] body {
    background-color: var(--background);
    color: var(--on-background);
}

[data-theme="dark"] .converter-box {
    background-color: var(--surface);
    border-color: var(--outline);
    box-shadow: var(--shadow-card);
    backdrop-filter: blur(12px);
}

[data-theme="dark"] textarea {
    background-color: var(--surface-variant);
    border-color: var(--outline);
    color: var(--on-surface);
    box-shadow: inset 0 2px 4px rgba(0, 0, 0, 0.2);
}

[data-theme="dark"] textarea:focus {
    border-color: var(--primary-color);
    box-shadow: var(--glow-primary);
}

[data-theme="dark"] .copy-btn {
    background-color: var(--primary-color);
    color: var(--on-primary);
    box-shadow: var(--shadow-button);
}

[data-theme="dark"] .copy-btn:hover {
    box-shadow: var(--glow-primary);
    transform: translateY(-2px);
}

[data-theme="dark"] .clear-btn {
    background-color: transparent;
    border: 2px solid var(--outline);
    color: var(--on-surface);
}

[data-theme="dark"] .clear-btn:hover {
    border-color: var(--primary-color);
    color: var(--primary-color);
    box-shadow: var(--glow-primary);
}

[data-theme="dark"] .share-btn {
    background-color: var(--surface-variant);
    color: var(--on-surface-variant);
}

[data-theme="dark"] .share-btn:hover {
    background-color: var(--primary-container);
    color: var(--on-primary-container);
    box-shadow: var(--glow-primary);
}

[data-theme="dark"] .instructions-card {
    background-color: var(--surface-variant);
    border-color: var(--outline);
    box-shadow: var(--shadow-card);
}

[data-theme="dark"] .instructions-card:hover {
    box-shadow: var(--glow-primary);
}

[data-theme="dark"] .instructions-card h3 {
    color: var(--primary-color);
}

[data-theme="dark"] .instructions-card li {
    color: var(--on-surface);
}

[data-theme="dark"] .instructions-card li i {
    color: var(--primary-color);
}

[data-theme="dark"] .theme-switch .slider {
    background-color: var(--surface-variant);
    border-color: var(--outline);
}

[data-theme="dark"] .theme-switch .slider:before {
    background-color: var(--primary-color);
    box-shadow: var(--glow-primary);
}

[data-theme="dark"] .theme-switch:hover .slider:before {
    box-shadow: var(--glow-secondary);
}

[data-theme="dark"] .notification {
    background-color: var(--surface-variant);
    color: var(--on-surface);
    border: 1px solid var(--outline);
    box-shadow: var(--shadow-card);
}


[data-theme="dark"] .main-title {
    color: var(--primary-color);
    text-shadow: var(--glow-primary);
}

[data-theme="dark"] .text-gradient {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--secondary-color) 100%);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
    text-fill-color: transparent;
    filter: drop-shadow(0 0 8px rgba(255, 117, 151, 0.3));
}


[data-theme="dark"] .ripple-effect::after {
    background-image: radial-gradient(circle, var(--primary-color) 10%, transparent 10.01%);
}


[data-theme="dark"] ::-webkit-scrollbar-track {
    background: var(--surface-variant);
}

[data-theme="dark"] ::-webkit-scrollbar-thumb {
    background: var(--outline);
    border: 2px solid var(--surface-variant);
}

[data-theme="dark"] ::-webkit-scrollbar-thumb:hover {
    background: var(--primary-color);
}


@keyframes darkGlow {
    0% { box-shadow: var(--glow-primary); }
    50% { box-shadow: var(--glow-secondary); }
    100% { box-shadow: var(--glow-primary); }
}

[data-theme="dark"] .action-btn:hover {
    animation: darkGlow 2s infinite;
}

/* Ripple Effect */
.ripple-effect {
    position: relative;
    overflow: hidden;
    transform: translate3d(0, 0, 0);
}

.ripple-effect::after {
    content: "";
    display: block;
    position: absolute;
    width: 100%;
    height: 100%;
    top: 0;
    left: 0;
    pointer-events: none;
    background-image: radial-gradient(circle, currentColor 10%, transparent 10.01%);
    background-repeat: no-repeat;
    background-position: 50%;
    transform: scale(10, 10);
    opacity: 0;
    transition: transform .5s, opacity 1s;
}

.ripple-effect:active::after {
    transform: scale(0, 0);
    opacity: .3;
    transition: 0s;
}

/* Text Gradient Effect */
.text-gradient {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--secondary-color) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    text-fill-color: transparent;
}

/* Input Label Styling */
.input-label {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-weight: 600;
    color: var(--on-surface);
    margin-bottom: 0.5rem;
    font-size: var(--type-scale-lg);
}

.input-label i {
    color: var(--primary-color);
}

/* Text Stats Styling */
.text-stats {
    display: flex;
    align-items: center;
    gap: 1rem;
    margin-top: 0.5rem;
    padding: 0.5rem 0;
    color: var(--on-surface-variant);
}

.stat {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.separator {
    width: 1px;
    height: 1rem;
    background-color: var(--outline-variant);
}

/* Share Buttons */
.share-buttons {
    display: flex;
    gap: 0.5rem;
}

.share-btn {
    width: 40px;
    height: 40px;
    border-radius: var(--radius-full);
    background-color: var(--surface-variant);
    color: var(--on-surface-variant);
    display: flex;
    align-items: center;
    justify-content: center;
    border: none;
    cursor: pointer;
    transition: all var(--motion-duration-medium) var(--motion-easing-standard);
}

.share-btn:hover {
    background-color: var(--primary-container);
    color: var(--on-primary-container);
    transform: translateY(-2px);
}

/* Hover Effects */
.hover-lift {
    transition: transform var(--motion-duration-medium) var(--motion-easing-standard);
}

.hover-lift:hover {
    transform: translateY(-2px);
}

/* Focus States */
:focus-visible {
    outline: 2px solid var(--primary-color);
    outline-offset: 2px;
}

/* Loading States */
.loading {
    position: relative;
    pointer-events: none;
}

.loading::after {
    content: "";
    position: absolute;
    inset: 0;
    background-color: currentColor;
    opacity: 0.5;
}

.main-header {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 2rem;
    padding: 2rem 1rem;
    position: relative;
}

.controls-left {
    position: absolute;
    left: 0;
    display: flex;
    align-items: center;
    gap: 1rem;
}


.main-title {
    text-align: center;
    color: var(--md-sys-color-primary);
    font-weight: 700;
    font-size: 2.5rem;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 1rem;
    margin: 0;
    padding: 0;
}


.about-btn {
    background-color: var(--primary-color);
    color: var(--on-primary);
    padding: 0.75rem 1.25rem;
    border-radius: var(--radius-lg);
    font-weight: 600;
    transition: all var(--motion-duration-medium) var(--motion-easing-standard);
    box-shadow: var(--md-elevation-level1);
}

.about-btn:hover {
    transform: translateY(-2px);
    box-shadow: var(--md-elevation-level2);
}


.theme-switch-wrapper {
    margin: 0;
    padding: 0;
}


@media (max-width: 768px) {
    .main-header {
        flex-direction: column-reverse;
        gap: 1rem;
        padding: 1rem;
    }

    .controls-left {
        position: static;
        width: 100%;
        justify-content: center;
    }

    .main-title {
        font-size: 2rem;
    }
}

.input-note {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    margin: 0.75rem 0;
    padding: 0.75rem;
    background-color: var(--surface-variant);
    border-radius: var(--radius-md);
    font-size: var(--type-scale-sm);
    color: var(--on-surface-variant);
    border: 1px solid var(--outline-variant);
}

.input-note i {
    color: var(--primary-color);
    font-size: 1rem;
}

[data-theme="dark"] .input-note {
    background-color: var(--surface);
    border-color: var(--outline);
}

.instructions-sections {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2rem;
    margin-top: 1.5rem;
}

.instruction-section {
    background-color: var(--surface-variant);
    border-radius: var(--radius-lg);
    padding: 1.5rem;
    border: 1px solid var(--outline-variant);
    transition: all var(--motion-duration-medium) var(--motion-easing-standard);
}

.instruction-section:hover {
    transform: translateY(-4px);
    box-shadow: var(--md-elevation-level2);
}

.instruction-section h4 {
    color: var(--primary-color);
    font-size: var(--type-scale-lg);
    margin-bottom: 1rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.instruction-section h4 i {
    font-size: 1.2em;
}

.instruction-section ul {
    margin: 0;
    padding: 0;
}

.instruction-section li {
    margin: 0.75rem 0;
    padding: 0.5rem;
    border-radius: var(--radius-md);
    transition: background-color 0.2s ease;
}

.instruction-section li:hover {
    background-color: var(--state-hover);
}

/* Dark Mode Adjustments */
[data-theme="dark"] .instruction-section {
    background-color: var(--surface);
    border-color: var(--outline);
}

[data-theme="dark"] .instruction-section:hover {
    box-shadow: var(--glow-primary);
}

[data-theme="dark"] .instruction-section li:hover {
    background-color: var(--surface-variant);
}

/* Responsive Adjustments */
@media (max-width: 768px) {
    .instructions-sections {
        grid-template-columns: 1fr;
        gap: 1rem;
    }
    
    .instruction-section {
        padding: 1.25rem;
    }
}