/* Language Switcher Top Right */
.language-switcher-topright {
    position: fixed;
    top: 24px;
    right: 32px;
    z-index: 1001;
}

.language-switcher {
    display: flex;
    gap: 8px;
    background: rgba(255,255,255,0.85);
    border-radius: 24px;
    box-shadow: 0 2px 8px rgba(0,0,0,0.04);
    padding: 4px 12px;
    align-items: center;
}

.lang-btn {
    background: none;
    border: none;
    color: var(--md-sys-color-primary);
    font-size: 15px;
    font-family: 'Roboto', sans-serif;
    padding: 4px 10px;
    border-radius: 16px;
    cursor: pointer;
    transition: background 0.2s, color 0.2s;
}
.lang-btn.active, .lang-btn:focus {
    background: var(--md-sys-color-primary);
    color: #fff;
    outline: none;
}
.lang-btn:hover:not(.active) {
    background: rgba(103,80,164,0.08);
}
/* ===========================
   Material Design 3 Variables
   =========================== */
:root {
    /* Material Design 3 Color Tokens - Light Theme */
    --md-sys-color-primary: #6750A4;
    --md-sys-color-on-primary: #FFFFFF;
    --md-sys-color-primary-container: #EADDFF;
    --md-sys-color-on-primary-container: #21005D;

    --md-sys-color-secondary: #625B71;
    --md-sys-color-on-secondary: #FFFFFF;
    --md-sys-color-secondary-container: #E8DEF8;
    --md-sys-color-on-secondary-container: #1D192B;

    --md-sys-color-surface: #FFFFFF;
    --md-sys-color-surface-variant: #F5F5F5;
    --md-sys-color-on-surface: #1C1B1F;
    --md-sys-color-on-surface-variant: #49454F;

    --md-sys-color-background: #FEFBFF;
    --md-sys-color-on-background: #1C1B1F;

    --md-sys-color-error: #BA1A1A;
    --md-sys-color-on-error: #FFFFFF;

    --md-sys-color-outline: #79747E;
    --md-sys-color-outline-variant: #CAC4D0;


    /* Material Design Elevation - Light Theme */
    --md-sys-elevation-0: none;
    --md-sys-elevation-1: 0px 1px 2px rgba(0, 0, 0, 0.05), 0px 1px 3px 1px rgba(0, 0, 0, 0.08);
    --md-sys-elevation-2: 0px 1px 2px rgba(0, 0, 0, 0.05), 0px 2px 6px 2px rgba(0, 0, 0, 0.08);
    --md-sys-elevation-3: 0px 1px 3px rgba(0, 0, 0, 0.05), 0px 4px 8px 3px rgba(0, 0, 0, 0.08);
    --md-sys-elevation-4: 0px 2px 3px rgba(0, 0, 0, 0.05), 0px 6px 10px 4px rgba(0, 0, 0, 0.08);
    --md-sys-elevation-5: 0px 4px 4px rgba(0, 0, 0, 0.05), 0px 8px 12px 6px rgba(0, 0, 0, 0.08);

    /* Material Design Typography Scale */
    --md-sys-typescale-display-large: 57px;
    --md-sys-typescale-display-medium: 45px;
    --md-sys-typescale-display-small: 36px;
    --md-sys-typescale-headline-large: 32px;
    --md-sys-typescale-headline-medium: 28px;
    --md-sys-typescale-headline-small: 24px;
    --md-sys-typescale-title-large: 22px;
    --md-sys-typescale-title-medium: 16px;
    --md-sys-typescale-title-small: 14px;
    --md-sys-typescale-body-large: 16px;
    --md-sys-typescale-body-medium: 14px;
    --md-sys-typescale-body-small: 12px;
    --md-sys-typescale-label-large: 14px;
    --md-sys-typescale-label-medium: 12px;
    --md-sys-typescale-label-small: 11px;

    /* Material Design Shape */
    --md-sys-shape-corner-none: 0px;
    --md-sys-shape-corner-extra-small: 4px;
    --md-sys-shape-corner-small: 8px;
    --md-sys-shape-corner-medium: 12px;
    --md-sys-shape-corner-large: 16px;
    --md-sys-shape-corner-extra-large: 28px;

    /* Material Design Motion */
    --md-sys-motion-duration-short1: 50ms;
    --md-sys-motion-duration-short2: 100ms;
    --md-sys-motion-duration-short3: 150ms;
    --md-sys-motion-duration-short4: 200ms;
    --md-sys-motion-duration-medium1: 250ms;
    --md-sys-motion-duration-medium2: 300ms;
    --md-sys-motion-duration-medium3: 350ms;
    --md-sys-motion-duration-medium4: 400ms;
    --md-sys-motion-duration-long1: 450ms;
    --md-sys-motion-duration-long2: 500ms;

    --md-sys-motion-easing-standard: cubic-bezier(0.2, 0, 0, 1);
    --md-sys-motion-easing-emphasized: cubic-bezier(0.2, 0, 0, 1);

    /* Spacing (8dp grid) */
    --md-sys-spacing-1: 8px;
    --md-sys-spacing-2: 16px;
    --md-sys-spacing-3: 24px;
    --md-sys-spacing-4: 32px;
    --md-sys-spacing-5: 40px;
    --md-sys-spacing-6: 48px;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Roboto', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    background-color: var(--md-sys-color-background);
    color: var(--md-sys-color-on-background);
    line-height: 1.5;
    min-height: 100vh;
    padding: 20px;
    margin: 0;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    font-size: var(--md-sys-typescale-body-medium);
}

/* ===========================
   Material Icons
   =========================== */
.material-icons {
    font-family: 'Material Icons';
    font-weight: normal;
    font-style: normal;
    font-size: 24px;
    display: inline-block;
    line-height: 1;
    text-transform: none;
    letter-spacing: normal;
    word-wrap: normal;
    white-space: nowrap;
    direction: ltr;
    -webkit-font-smoothing: antialiased;
    text-rendering: optimizeLegibility;
    -moz-osx-font-smoothing: grayscale;
    font-feature-settings: 'liga';
}

/* ===========================
   Layout
   =========================== */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: var(--md-sys-spacing-3) var(--md-sys-spacing-2);
}

/* ===========================
   Header
   =========================== */
.header {
    text-align: center;
    margin-bottom: var(--md-sys-spacing-5);
    animation: fadeInDown var(--md-sys-motion-duration-medium4) var(--md-sys-motion-easing-emphasized);
}

.header-content {
    background-color: var(--md-sys-color-surface-variant);
    border-radius: var(--md-sys-shape-corner-extra-large);
    padding: var(--md-sys-spacing-4);
    box-shadow: var(--md-sys-elevation-1);
}

.title {
    font-size: var(--md-sys-typescale-headline-large);
    font-weight: 400;
    color: var(--md-sys-color-primary);
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--md-sys-spacing-2);
    margin-bottom: var(--md-sys-spacing-1);
    letter-spacing: 0.25px;
}

.title-icon {
    font-size: 40px;
    color: var(--md-sys-color-primary);
}

.subtitle {
    color: var(--md-sys-color-on-surface-variant);
    font-size: var(--md-sys-typescale-body-large);
    max-width: 600px;
    margin: 0 auto;
    font-weight: 400;
    letter-spacing: 0.5px;
}

/* ===========================
   Material Cards
   =========================== */
.card {
    background-color: var(--md-sys-color-surface);
    border-radius: var(--md-sys-shape-corner-large);
    padding: var(--md-sys-spacing-3);
    margin-bottom: var(--md-sys-spacing-3);
    box-shadow: var(--md-sys-elevation-1);
    transition: box-shadow var(--md-sys-motion-duration-short4) var(--md-sys-motion-easing-standard);
    animation: fadeInUp var(--md-sys-motion-duration-medium4) var(--md-sys-motion-easing-emphasized);
    animation-fill-mode: both;
}

.card:hover {
    box-shadow: var(--md-sys-elevation-2);
}

.input-section {
    animation-delay: 100ms;
}

.options-section {
    animation-delay: 200ms;
}

.output-section {
    animation-delay: 300ms;
}

.card-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: var(--md-sys-spacing-2);
    padding-bottom: var(--md-sys-spacing-2);
    border-bottom: 1px solid var(--md-sys-color-outline-variant);
}

.card-header.clickable {
    cursor: pointer;
    user-select: none;
    transition: color var(--md-sys-motion-duration-short4) var(--md-sys-motion-easing-standard);
    border-radius: var(--md-sys-shape-corner-small);
    padding: var(--md-sys-spacing-1);
    margin: calc(var(--md-sys-spacing-1) * -1);
}

.card-header.clickable:hover {
    background-color: rgba(103, 80, 164, 0.08);
}

.card-title {
    font-size: var(--md-sys-typescale-title-large);
    font-weight: 400;
    display: flex;
    align-items: center;
    gap: var(--md-sys-spacing-1);
    letter-spacing: 0.15px;
}

.expand-icon {
    transition: transform var(--md-sys-motion-duration-short4) var(--md-sys-motion-easing-standard);
}

.expand-icon.collapsed {
    transform: rotate(-90deg);
}

.header-actions {
    display: flex;
    align-items: center;
    gap: var(--md-sys-spacing-2);
}

/* ===========================
   Material Badges
   =========================== */
.badge {
    display: inline-flex;
    align-items: center;
    padding: 4px var(--md-sys-spacing-2);
    background-color: var(--md-sys-color-secondary-container);
    color: var(--md-sys-color-on-secondary-container);
    border-radius: var(--md-sys-shape-corner-small);
    font-size: var(--md-sys-typescale-label-medium);
    font-weight: 500;
    letter-spacing: 0.5px;
}

.badge-success {
    background-color: rgba(76, 175, 80, 0.16);
    color: #81C784;
}

/* ===========================
   Material Input Elements
   =========================== */
.input-textarea {
    width: 100%;
    min-height: 200px;
    padding: var(--md-sys-spacing-2);
    background-color: var(--md-sys-color-surface-variant);
    border: 1px solid var(--md-sys-color-outline);
    border-radius: var(--md-sys-shape-corner-small);
    color: var(--md-sys-color-on-surface);
    font-family: 'Roboto Mono', 'Consolas', monospace;
    font-size: var(--md-sys-typescale-body-medium);
    line-height: 1.6;
    resize: vertical;
    transition: all var(--md-sys-motion-duration-short4) var(--md-sys-motion-easing-standard);
}

.input-textarea:hover {
    border-color: var(--md-sys-color-on-surface);
}

.input-textarea:focus {
    outline: none;
    border-color: var(--md-sys-color-primary);
    border-width: 2px;
    padding: calc(var(--md-sys-spacing-2) - 1px);
}

.input-textarea::placeholder {
    color: var(--md-sys-color-on-surface-variant);
    opacity: 0.6;
}

/* ===========================
   Material Buttons
   =========================== */
.action-bar {
    display: flex;
    gap: var(--md-sys-spacing-2);
    margin-top: var(--md-sys-spacing-2);
}

.mdc-button {
    position: relative;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--md-sys-spacing-1);
    padding: 10px var(--md-sys-spacing-3);
    font-size: var(--md-sys-typescale-label-large);
    font-weight: 500;
    letter-spacing: 0.1px;
    border: none;
    border-radius: var(--md-sys-shape-corner-extra-large);
    cursor: pointer;
    transition: all var(--md-sys-motion-duration-short4) var(--md-sys-motion-easing-standard);
    font-family: 'Roboto', sans-serif;
    text-transform: none;
    overflow: hidden;
    height: 40px;
}

.mdc-button .material-icons {
    font-size: 18px;
}

.mdc-button::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 0;
    height: 0;
    border-radius: 50%;
    background-color: currentColor;
    opacity: 0;
    transform: translate(-50%, -50%);
    transition: width var(--md-sys-motion-duration-medium2) var(--md-sys-motion-easing-standard),
        height var(--md-sys-motion-duration-medium2) var(--md-sys-motion-easing-standard),
        opacity var(--md-sys-motion-duration-short4) var(--md-sys-motion-easing-standard);
}

.mdc-button:hover::before {
    width: 100%;
    height: 100%;
    opacity: 0.08;
}

.mdc-button:active::before {
    opacity: 0.12;
}

.btn-primary.mdc-button--raised {
    background-color: var(--md-sys-color-primary);
    color: var(--md-sys-color-on-primary);
    box-shadow: var(--md-sys-elevation-1);
    flex: 1;
}

.btn-primary.mdc-button--raised:hover {
    box-shadow: var(--md-sys-elevation-2);
}

.btn-primary.mdc-button--raised:active {
    box-shadow: var(--md-sys-elevation-1);
}

.btn-secondary.mdc-button {
    background-color: transparent;
    color: var(--md-sys-color-primary);
    border: 1px solid var(--md-sys-color-outline);
}

.btn-secondary.mdc-button:hover {
    background-color: rgba(103, 80, 164, 0.08);
}

.mdc-icon-button {
    width: 40px;
    height: 40px;
    padding: 8px;
    background-color: transparent;
    color: var(--md-sys-color-on-surface-variant);
    border: none;
    border-radius: 50%;
    cursor: pointer;
    transition: all var(--md-sys-motion-duration-short4) var(--md-sys-motion-easing-standard);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    position: relative;
    overflow: hidden;
}

.mdc-icon-button::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    border-radius: 50%;
    background-color: currentColor;
    opacity: 0;
    transition: opacity var(--md-sys-motion-duration-short4) var(--md-sys-motion-easing-standard);
}

.mdc-icon-button:hover::before {
    opacity: 0.08;
}

.mdc-icon-button:active::before {
    opacity: 0.12;
}

/* ===========================
   Options Panel
   =========================== */
.options-content {
    display: grid;
    gap: var(--md-sys-spacing-3);
    max-height: 1000px;
    overflow: hidden;
    transition: max-height var(--md-sys-motion-duration-medium4) var(--md-sys-motion-easing-emphasized),
        opacity var(--md-sys-motion-duration-medium4) var(--md-sys-motion-easing-emphasized);
}

.options-content.collapsed {
    max-height: 0;
    opacity: 0;
}

.option-group {
    display: flex;
    flex-direction: column;
    gap: var(--md-sys-spacing-1);
}

.option-label {
    display: flex;
    align-items: center;
    gap: var(--md-sys-spacing-1);
    font-weight: 500;
    color: var(--md-sys-color-on-surface);
    font-size: var(--md-sys-typescale-body-medium);
    letter-spacing: 0.25px;
}

.option-icon {
    font-size: 20px;
    color: var(--md-sys-color-primary);
}

.option-select,
.option-input {
    width: 100%;
    padding: var(--md-sys-spacing-2);
    background-color: var(--md-sys-color-surface-variant);
    border: 1px solid var(--md-sys-color-outline);
    border-radius: var(--md-sys-shape-corner-small);
    color: var(--md-sys-color-on-surface);
    font-family: 'Roboto', sans-serif;
    font-size: var(--md-sys-typescale-body-large);
    transition: all var(--md-sys-motion-duration-short4) var(--md-sys-motion-easing-standard);
}

.option-select:hover,
.option-input:hover {
    border-color: var(--md-sys-color-on-surface);
}

.option-select:focus,
.option-input:focus {
    outline: none;
    border-color: var(--md-sys-color-primary);
    border-width: 2px;
    padding: calc(var(--md-sys-spacing-2) - 1px);
}

.option-hint {
    color: var(--md-sys-color-on-surface-variant);
    font-size: var(--md-sys-typescale-body-small);
    margin-top: 4px;
    letter-spacing: 0.4px;
}

/* Material Slider */
.range-container {
    display: grid;
    grid-template-columns: 1fr auto;
    gap: var(--md-sys-spacing-2);
    align-items: center;
}

.option-range {
    width: 100%;
    height: 4px;
    background-color: var(--md-sys-color-surface-variant);
    border-radius: var(--md-sys-shape-corner-extra-large);
    outline: none;
    -webkit-appearance: none;
    appearance: none;
}

.option-range::-webkit-slider-track {
    background: linear-gradient(to right,
            var(--md-sys-color-primary) 0%,
            var(--md-sys-color-primary) var(--slider-progress, 50%),
            var(--md-sys-color-surface-variant) var(--slider-progress, 50%),
            var(--md-sys-color-surface-variant) 100%);
    height: 4px;
    border-radius: var(--md-sys-shape-corner-extra-large);
}

.option-range::-webkit-slider-thumb {
    -webkit-appearance: none;
    appearance: none;
    width: 20px;
    height: 20px;
    background-color: var(--md-sys-color-primary);
    border-radius: 50%;
    cursor: pointer;
    box-shadow: var(--md-sys-elevation-1);
    transition: all var(--md-sys-motion-duration-short4) var(--md-sys-motion-easing-standard);
}

.option-range::-webkit-slider-thumb:hover {
    box-shadow: var(--md-sys-elevation-2);
    transform: scale(1.1);
}

.option-range::-moz-range-thumb {
    width: 20px;
    height: 20px;
    background-color: var(--md-sys-color-primary);
    border-radius: 50%;
    cursor: pointer;
    border: none;
    box-shadow: var(--md-sys-elevation-1);
    transition: all var(--md-sys-motion-duration-short4) var(--md-sys-motion-easing-standard);
}

.option-range::-moz-range-thumb:hover {
    box-shadow: var(--md-sys-elevation-2);
    transform: scale(1.1);
}

.option-number {
    width: 80px;
    padding: var(--md-sys-spacing-1);
    background-color: var(--md-sys-color-surface-variant);
    border: 1px solid var(--md-sys-color-outline);
    border-radius: var(--md-sys-shape-corner-small);
    color: var(--md-sys-color-on-surface);
    font-family: 'Roboto', sans-serif;
    text-align: center;
    font-size: var(--md-sys-typescale-body-medium);
}

.option-number:focus {
    outline: none;
    border-color: var(--md-sys-color-primary);
    border-width: 2px;
    padding: calc(var(--md-sys-spacing-1) - 1px);
}

/* Material Checkbox */
.checkbox-label {
    display: flex;
    align-items: center;
    gap: var(--md-sys-spacing-2);
    cursor: pointer;
    user-select: none;
    font-weight: 400;
    padding: var(--md-sys-spacing-1);
    border-radius: var(--md-sys-shape-corner-small);
    transition: background-color var(--md-sys-motion-duration-short4) var(--md-sys-motion-easing-standard);
}

.checkbox-label:hover {
    background-color: rgba(103, 80, 164, 0.08);
}

.option-checkbox {
    position: absolute;
    opacity: 0;
    cursor: pointer;
}

.checkbox-custom {
    position: relative;
    width: 18px;
    height: 18px;
    background-color: transparent;
    border: 2px solid var(--md-sys-color-on-surface-variant);
    border-radius: var(--md-sys-shape-corner-extra-small);
    transition: all var(--md-sys-motion-duration-short4) var(--md-sys-motion-easing-standard);
}

.option-checkbox:checked+.checkbox-custom {
    background-color: var(--md-sys-color-primary);
    border-color: var(--md-sys-color-primary);
}

.option-checkbox:checked+.checkbox-custom::after {
    content: '';
    position: absolute;
    left: 5px;
    top: 1px;
    width: 5px;
    height: 10px;
    border: solid var(--md-sys-color-on-primary);
    border-width: 0 2px 2px 0;
    transform: rotate(45deg);
}

/* ===========================
   Output Results
   =========================== */
#resultsContainer {
    margin-top: var(--md-sys-spacing-3);
    padding-top: var(--md-sys-spacing-3);
    border-top: 1px solid var(--md-sys-color-outline-variant);
    animation: fadeInUp var(--md-sys-motion-duration-medium4) var(--md-sys-motion-easing-emphasized);
}

.results-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: var(--md-sys-spacing-2);
}

.results-title {
    font-size: var(--md-sys-typescale-title-medium);
    font-weight: 500;
    color: var(--md-sys-color-on-surface);
    letter-spacing: 0.15px;
}

.output-results {

    display: flex;
    flex-direction: column;
    gap: var(--md-sys-spacing-2);
}

.result-item {
    background-color: var(--md-sys-color-surface-variant);
    border-radius: var(--md-sys-shape-corner-medium);
    padding: var(--md-sys-spacing-2);
    transition: all var(--md-sys-motion-duration-short4) var(--md-sys-motion-easing-standard);
    animation: slideInRight var(--md-sys-motion-duration-medium2) var(--md-sys-motion-easing-emphasized);
    border-left: 4px solid transparent;
}

.result-item:hover {
    background-color: rgba(103, 80, 164, 0.08);
    box-shadow: var(--md-sys-elevation-1);
}

.result-item.modified {
    border-left-color: #FFA726;
}

.result-item.unchanged {
    border-left-color: #66BB6A;
}

.result-path {
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.path-label {
    font-size: var(--md-sys-typescale-label-small);
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    color: var(--md-sys-color-on-surface-variant);
}

.path-value {
    font-family: 'Roboto Mono', 'Consolas', monospace;
    font-size: var(--md-sys-typescale-body-medium);
    color: var(--md-sys-color-on-surface);
    word-break: break-all;
    letter-spacing: 0.25px;
}

.path-original {
    margin-bottom: var(--md-sys-spacing-1);
}

.path-sanitized .path-value {
    color: var(--md-sys-color-primary);
}

.result-divider {
    height: 1px;
    background-color: var(--md-sys-color-outline-variant);
    margin: var(--md-sys-spacing-1) 0;
}

/* ===========================
   Material Snackbar (Toast)
   =========================== */
.mdc-snackbar {
    position: fixed;
    bottom: var(--md-sys-spacing-2);
    left: 50%;
    transform: translateX(-50%) translateY(100px);
    opacity: 0;
    transition: all var(--md-sys-motion-duration-medium2) var(--md-sys-motion-easing-emphasized);
    z-index: 1000;
}

.mdc-snackbar.show {
    transform: translateX(-50%) translateY(0);
    opacity: 1;
}

.mdc-snackbar__surface {
    background-color: var(--md-sys-color-on-surface);
    color: var(--md-sys-color-surface);
    border-radius: var(--md-sys-shape-corner-small);
    box-shadow: var(--md-sys-elevation-3);
    padding: var(--md-sys-spacing-2) var(--md-sys-spacing-3);
    min-width: 344px;
    max-width: 672px;
}

.mdc-snackbar__label {
    font-size: var(--md-sys-typescale-body-medium);
    font-weight: 400;
    letter-spacing: 0.25px;
}

.mdc-snackbar.success .mdc-snackbar__surface {
    background-color: #66BB6A;
    color: #1B5E20;
}

.mdc-snackbar.warning .mdc-snackbar__surface {
    background-color: #FFA726;
    color: #E65100;
}

.mdc-snackbar.error .mdc-snackbar__surface {
    background-color: var(--md-sys-color-error);
    color: var(--md-sys-color-on-error);
}

/* ===========================
   Footer
   =========================== */
.footer {
    text-align: center;
    padding: var(--md-sys-spacing-3) 0;
    color: var(--md-sys-color-on-surface-variant);
    font-size: var(--md-sys-typescale-body-small);
    border-top: 1px solid var(--md-sys-color-outline-variant);
    margin-top: var(--md-sys-spacing-5);
    letter-spacing: 0.4px;
}

/* ===========================
   Material Animations
   =========================== */
@keyframes fadeInDown {
    from {
        opacity: 0;
        transform: translateY(-16px);
    }

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

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(16px);
    }

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

@keyframes slideInRight {
    from {
        opacity: 0;
        transform: translateX(16px);
    }

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

/* ===========================
   Responsive Design (Material Breakpoints)
   =========================== */
/* Tablet (600dp - 839dp) */
@media (max-width: 839px) {
    .container {
        padding: var(--md-sys-spacing-2);
    }

    .title {
        font-size: var(--md-sys-typescale-headline-medium);
    }

    .subtitle {
        font-size: var(--md-sys-typescale-body-medium);
    }

    .card {
        padding: var(--md-sys-spacing-2);
    }
}

/* Mobile (0dp - 599dp) */
@media (max-width: 599px) {
    .container {
        padding: var(--md-sys-spacing-2);
    }

    .title {
        font-size: var(--md-sys-typescale-headline-small);
        flex-direction: column;
        gap: var(--md-sys-spacing-1);
    }

    .card {
        padding: var(--md-sys-spacing-2);
    }

    .action-bar {
        flex-direction: column;
    }

    .mdc-button {
        width: 100%;
        justify-content: center;
    }

    .range-container {
        grid-template-columns: 1fr;
    }

    .option-number {
        width: 100%;
    }

    .mdc-snackbar {
        right: var(--md-sys-spacing-2);
        left: var(--md-sys-spacing-2);
        bottom: var(--md-sys-spacing-2);
        transform: translateX(0) translateY(100px);
    }

    .mdc-snackbar.show {
        transform: translateX(0) translateY(0);
    }

    .mdc-snackbar__surface {
        min-width: auto;
        width: 100%;
    }

    .card-header {
        flex-direction: column;
        align-items: flex-start;
        gap: var(--md-sys-spacing-1);
    }

    .header-actions {
        width: 100%;
        justify-content: space-between;
    }
}

/* ===========================
   Material State Layers
   =========================== */
.mdc-button:focus-visible,
.mdc-icon-button:focus-visible {
    outline: 2px solid var(--md-sys-color-primary);
    outline-offset: 2px;
}

/* Accessibility - Reduced Motion */
@media (prefers-reduced-motion: reduce) {

    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
}