/* 
   GZ-Util Design System 
   Premium, Modern, Professional
*/

@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700&family=Outfit:wght@500;600;700&display=swap');

:root {
    /* Color Palette - HSL for easy manipulation */
    --hue-primary: 168;
    /* Teal-ish Green from original but refined */
    --hue-dark: 220;
    /* Deep Blue-Grey */

    /* Light Theme */
    --bg-body: hsl(210, 20%, 98%);
    --bg-surface: hsl(0, 0%, 100%);
    --bg-glass: hsla(0, 0%, 100%, 0.85);

    --text-main: hsl(220, 20%, 15%);
    --text-muted: hsl(220, 15%, 45%);
    --text-light: hsl(220, 15%, 65%);

    --primary: hsl(var(--hue-primary), 75%, 35%);
    --primary-hover: hsl(var(--hue-primary), 75%, 30%);
    --primary-light: hsl(var(--hue-primary), 80%, 92%);

    --border-light: hsl(220, 15%, 90%);
    --border-hover: hsl(var(--hue-primary), 50%, 80%);

    --shadow-sm: 0 2px 8px hsla(220, 20%, 10%, 0.04);
    --shadow-md: 0 8px 24px hsla(220, 20%, 10%, 0.06);
    --shadow-lg: 0 16px 48px hsla(220, 20%, 10%, 0.08);

    --radius-sm: 8px;
    --radius-md: 16px;
    --radius-lg: 24px;

    --font-heading: 'Outfit', sans-serif;
    --font-body: 'Inter', sans-serif;

    --transition-fast: 0.2s cubic-bezier(0.2, 0.8, 0.2, 1);
    --transition-smooth: 0.4s cubic-bezier(0.2, 0.8, 0.2, 1);
}

/* Dark Theme Variables */
body.dark-mode {
    --bg-body: hsl(220, 25%, 8%);
    --bg-surface: hsl(220, 20%, 12%);
    --bg-glass: hsla(220, 20%, 12%, 0.85);

    --text-main: hsl(220, 10%, 95%);
    --text-muted: hsl(220, 10%, 70%);
    --text-light: hsl(220, 10%, 50%);

    --primary: hsl(var(--hue-primary), 70%, 50%);
    --primary-hover: hsl(var(--hue-primary), 70%, 60%);
    --primary-light: hsla(var(--hue-primary), 70%, 50%, 0.15);

    --border-light: hsl(220, 20%, 18%);
    --border-hover: hsla(var(--hue-primary), 70%, 50%, 0.3);

    --shadow-sm: 0 2px 8px hsla(0, 0%, 0%, 0.2);
    --shadow-md: 0 8px 24px hsla(0, 0%, 0%, 0.3);
    --shadow-lg: 0 16px 48px hsla(0, 0%, 0%, 0.4);
}

/* Reset & Base */
*,
*::before,
*::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: var(--font-body);
    background-color: var(--bg-body);
    color: var(--text-main);
    line-height: 1.6;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    transition: background-color var(--transition-smooth), color var(--transition-smooth);
    -webkit-font-smoothing: antialiased;
}

a {
    text-decoration: none;
    color: inherit;
    transition: color var(--transition-fast);
}

img {
    max-width: 100%;
    display: block;
}

/* Layout */
.container {
    width: 100%;
    max-width: 1100px;
    margin: 0 auto;
    padding: 0 2rem;
}

main {
    flex: 1;
    padding: 4rem 0;
}

/* Typography */
h1,
h2,
h3,
h4,
h5,
h6 {
    font-family: var(--font-heading);
    font-weight: 700;
    line-height: 1.2;
    letter-spacing: -0.02em;
    color: var(--text-main);
}

h1 {
    font-size: clamp(2.5rem, 5vw, 3.5rem);
    margin-bottom: 1.5rem;
}

h2 {
    font-size: clamp(1.8rem, 4vw, 2.5rem);
    margin-bottom: 1rem;
}

h3 {
    font-size: 1.5rem;
    margin-bottom: 0.75rem;
}

p {
    margin-bottom: 1rem;
    color: var(--text-muted);
}

/* Components: Header */
.site-header {
    position: sticky;
    top: 0;
    z-index: 100;
    background: var(--bg-glass);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--border-light);
    padding: 1rem 0;
    transition: border-color var(--transition-smooth);
}

.header-inner {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    font-family: var(--font-heading);
    font-weight: 700;
    font-size: 1.5rem;
    color: var(--text-main);
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.logo span {
    color: var(--primary);
}

/* Components: Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0.75rem 1.5rem;
    border-radius: var(--radius-sm);
    font-weight: 600;
    font-size: 0.95rem;
    cursor: pointer;
    transition: all var(--transition-fast);
    border: none;
    gap: 0.5rem;
}

.btn-primary {
    background-color: var(--primary);
    color: white;
    box-shadow: 0 4px 12px hsla(var(--hue-primary), 75%, 35%, 0.25);
}

.btn-primary:hover {
    background-color: var(--primary-hover);
    transform: translateY(-2px);
    box-shadow: 0 6px 16px hsla(var(--hue-primary), 75%, 35%, 0.35);
}

.btn-icon {
    padding: 0.5rem;
    border-radius: 50%;
    background: transparent;
    color: var(--text-main);
}

.btn-icon:hover {
    background-color: var(--bg-surface);
    color: var(--primary);
}

/* Components: Cards */
.card {
    background: var(--bg-surface);
    border: 1px solid var(--border-light);
    border-radius: var(--radius-md);
    padding: 2rem;
    transition: all var(--transition-fast);
    position: relative;
    overflow: hidden;
}

.card:hover {
    transform: translateY(-4px);
    border-color: var(--border-hover);
    box-shadow: var(--shadow-md);
}

/* Components: Inputs */
.input-group {
    margin-bottom: 1.5rem;
}

.input-field {
    width: 100%;
    padding: 1rem 1.25rem;
    border-radius: var(--radius-sm);
    border: 1px solid var(--border-light);
    background: var(--bg-surface);
    color: var(--text-main);
    font-family: var(--font-body);
    font-size: 1rem;
    transition: all var(--transition-fast);
}

.input-field:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px var(--primary-light);
}

/* Components: Footer */
.site-footer {
    background: var(--bg-surface);
    border-top: 1px solid var(--border-light);
    padding: 3rem 0;
    margin-top: auto;
}

.footer-content {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 1.5rem;
    text-align: center;
}

.social-links {
    display: flex;
    gap: 1rem;
}

.social-link {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: var(--bg-body);
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all var(--transition-fast);
    border: 1px solid var(--border-light);
}

.social-link:hover {
    background: var(--primary);
    color: white;
    border-color: var(--primary);
    transform: translateY(-2px);
}

.social-link img {
    width: 20px;
    height: 20px;
    filter: grayscale(100%);
    transition: filter var(--transition-fast);
}

.social-link:hover img {
    filter: brightness(0) invert(1);
}

/* Utilities */
.text-center {
    text-align: center;
}

.mb-1 {
    margin-bottom: 0.5rem;
}

.mb-2 {
    margin-bottom: 1rem;
}

.mb-4 {
    margin-bottom: 2rem;
}

/* Dark Mode Toggle */
.theme-toggle {
    background: none;
    border: none;
    cursor: pointer;
    padding: 0.5rem;
    color: var(--text-main);
    border-radius: 50%;
    transition: background-color var(--transition-fast);
}

.theme-toggle:hover {
    background-color: var(--border-light);
}

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

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

.animate-fade-in {
    animation: fadeIn 0.6s ease-out forwards;
}

/* Components: Upload Area */
.upload-area {
    border: 2px dashed var(--border-light);
    padding: 2rem;
    border-radius: var(--radius-md);
    background-color: var(--bg-surface);
    margin-bottom: 1.5rem;
    position: relative;
    cursor: pointer;
    transition: all var(--transition-fast);
    width: 100%;
    min-height: 200px;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    text-align: center;
    gap: 1rem;
}

.upload-area:hover,
.upload-area.dragging {
    border-color: var(--primary);
    background-color: var(--primary-light);
}

.upload-area input[type="file"] {
    position: absolute;
    width: 100%;
    height: 100%;
    top: 0;
    left: 0;
    opacity: 0;
    cursor: pointer;
}

.upload-icon {
    font-size: 3rem;
    color: var(--text-muted);
    transition: color var(--transition-fast);
}

.upload-area:hover .upload-icon {
    color: var(--primary);
}

/* Components: Select */
.form-select {
    width: 100%;
    padding: 0.75rem 1rem;
    border-radius: var(--radius-sm);
    border: 1px solid var(--border-light);
    background-color: var(--bg-surface);
    color: var(--text-main);
    font-family: var(--font-body);
    font-size: 1rem;
    cursor: pointer;
    appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='24' height='24' viewBox='0 0 24 24' fill='none' stroke='%236b7280' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='6 9 12 15 18 9'%3E%3C/polyline%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 1rem center;
    background-size: 1.2em;
}

.form-select:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px var(--primary-light);
}

/* Components: Status Badge & Spinner */
.status-badge {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.75rem 1rem;
    border-radius: var(--radius-sm);
    background: var(--bg-body);
    color: var(--text-muted);
    border: 1px dashed var(--border-light);
    font-size: 0.9rem;
    opacity: 0;
    transform: translateY(10px);
    transition: all var(--transition-fast);
    visibility: hidden;
}

.status-badge.is-visible {
    opacity: 1;
    transform: translateY(0);
    visibility: visible;
}

.spinner {
    width: 20px;
    height: 20px;
    border: 2px solid var(--border-light);
    border-top-color: var(--primary);
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
}

@keyframes spin {
    to {
        transform: rotate(360deg);
    }
}

/* Components: Result Card */
.result-card {
    background: var(--bg-surface);
    border: 1px solid var(--border-light);
    border-radius: var(--radius-md);
    padding: 1.5rem;
    box-shadow: var(--shadow-sm);
    transition: all var(--transition-fast);
}

.result-card:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
    border-color: var(--border-hover);
}

.result-card img {
    border-radius: var(--radius-sm);
    margin-bottom: 1rem;
    box-shadow: var(--shadow-sm);
}

.result-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
    gap: 1.5rem;
    margin-top: 2rem;
}

/* Tool: Color Picker */
.color-tool-container {
    display: flex;
    flex-direction: column;
    gap: 2rem;
}

.image-workspace {
    position: relative;
    width: 100%;
    overflow: hidden;
    border-radius: var(--radius-md);
    border: 1px solid var(--border-light);
    background: var(--bg-surface);
    display: none;
    /* Hidden by default until image loaded */
}

.image-workspace canvas {
    display: block;
    max-width: 100%;
    height: auto;
    margin: 0 auto;
}

.magnifier {
    position: absolute;
    width: 100px;
    height: 100px;
    border: 2px solid white;
    border-radius: 50%;
    pointer-events: none;
    display: none;
    background-repeat: no-repeat;
    box-shadow:
        0 0 0 7px rgba(255, 255, 255, 0.85),
        0 0 7px 7px rgba(0, 0, 0, 0.25),
        inset 0 0 40px 2px rgba(0, 0, 0, 0.25);
    z-index: 10;
}

.magnifier::after {
    content: '+';
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    color: #ef4444;
    font-size: 20px;
    font-weight: bold;
}

.color-panel {
    display: grid;
    grid-template-columns: 100px 1fr;
    gap: 2rem;
    align-items: start;
    background: var(--bg-surface);
    padding: 2rem;
    border-radius: var(--radius-md);
    border: 1px solid var(--border-light);
}

.color-preview-large {
    width: 100px;
    height: 100px;
    border-radius: 50%;
    border: 4px solid var(--bg-body);
    box-shadow: 0 0 0 2px var(--border-light);
    background-color: #ffffff;
    transition: background-color 0.1s;
}

.color-values {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1rem;
}

.palette-section {
    margin-top: 2rem;
}

.palette-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 1.5rem;
}

.palette-card {
    background: var(--bg-surface);
    padding: 1.5rem;
    border-radius: var(--radius-md);
    border: 1px solid var(--border-light);
}

.palette-swatches {
    display: flex;
    gap: 0.5rem;
    margin-top: 1rem;
    flex-wrap: wrap;
    justify-content: center;
}

.color-swatch {
    width: 48px;
    height: 48px;
    border-radius: var(--radius-sm);
    border: 1px solid var(--border-light);
    cursor: pointer;
    transition: transform var(--transition-fast), box-shadow var(--transition-fast);
    position: relative;
}

.color-swatch:hover {
    transform: scale(1.1);
    box-shadow: var(--shadow-sm);
    z-index: 2;
}

.color-swatch.copied::after {
    content: 'Copied!';
    position: absolute;
    bottom: -25px;
    left: 50%;
    transform: translateX(-50%);
    background: rgba(0, 0, 0, 0.8);
    color: white;
    font-size: 0.75rem;
    padding: 2px 6px;
    border-radius: 4px;
    pointer-events: none;
    white-space: nowrap;
}

@media (max-width: 640px) {
    .color-panel {
        grid-template-columns: 1fr;
        justify-items: center;
        text-align: center;
    }
}

/* Components: Notification/Toast */
.copy-message {
    position: fixed;
    bottom: 2rem;
    left: 50%;
    transform: translateX(-50%);
    background-color: var(--bg-surface);
    color: var(--text-main);
    padding: 0.75rem 1.5rem;
    border-radius: var(--radius-md);
    font-size: 0.9rem;
    z-index: 1000;
    box-shadow: var(--shadow-md);
    border: 1px solid var(--border-light);
    animation: fadeInOut 3s ease;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

@keyframes fadeInOut {

    0%,
    100% {
        opacity: 0;
        transform: translate(-50%, 20px);
    }

    10%,
    90% {
        opacity: 1;
        transform: translate(-50%, 0);
    }
}

/* Tool: Big Text */
.big-text-workspace {
    min-height: 60vh;
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.big-text-canvas {
    flex: 1;
    width: 100%;
    min-height: 50vh;
    padding: 2rem;
    border: 1px solid var(--border-light);
    border-radius: var(--radius-md);
    background: var(--bg-surface);
    font-family: sans-serif;
    font-weight: bold;
    white-space: pre-wrap;
    word-break: break-word;
    outline: none;
    font-size: var(--fs, 48px);
    line-height: 1.4;
    transition: font-size 0.1s;
}

.big-text-canvas:empty::before {
    content: 'Escribe o pega tu texto aquí...';
    color: var(--text-muted);
    opacity: 0.5;
}

.big-text-controls {
    display: flex;
    gap: 1rem;
    align-items: center;
    flex-wrap: wrap;
    padding: 1rem;
    background: var(--bg-surface);
    border: 1px solid var(--border-light);
    border-radius: var(--radius-md);
    position: sticky;
    gap: 1rem;
    border-bottom: 1px solid var(--border-light);
    margin-bottom: 1.5rem;
}

.tab {
    padding: 0.75rem 1.5rem;
    border: none;
    background: none;
    color: var(--text-muted);
    font-weight: 600;
    cursor: pointer;
    border-bottom: 2px solid transparent;
    transition: all var(--transition-fast);
}

.tab:hover {
    color: var(--text-main);
}

.tab.active {
    color: var(--primary);
    border-bottom-color: var(--primary);
}

.tab-content {
    display: none;
    animation: fadeIn 0.3s ease;
}

.tab-content.active {
    display: block;
}

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(5px);
    }

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

/* History Item */
.history-item {
    background: var(--bg-surface);
    border: 1px solid var(--border-light);
    border-radius: var(--radius-sm);
    padding: 1rem;
    margin-bottom: 1rem;
    transition: all var(--transition-fast);
}

.history-item:hover {
    box-shadow: var(--shadow-sm);
    border-color: var(--border-hover);
}

.history-item p {
    margin: 0.5rem 0;
    font-size: 0.9rem;
}

.history-item strong {
    color: var(--text-main);
}

.history-use-btn {
    margin-top: 0.5rem;
    padding: 0.5rem 1rem;
    font-size: 0.85rem;
    background: var(--bg-body);
    border: 1px solid var(--border-light);
}

.history-use-btn:hover {
    background: var(--primary-light);
    color: var(--primary);
    border-color: var(--primary);
}

/* Tool: Contador */
.textarea-container {
    position: relative;
    width: 100%;
    margin-bottom: 1.5rem;
}

.character-counter {
    position: absolute;
    bottom: 10px;
    right: 10px;
    background-color: var(--bg-surface);
    padding: 4px 8px;
    border-radius: var(--radius-sm);
    font-size: 0.85rem;
    font-weight: 500;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--border-light);
    opacity: 0.9;
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    gap: 1rem;
    margin-bottom: 1.5rem;
}

.stat-card {
    background: var(--bg-surface);
    padding: 1rem;
    border-radius: var(--radius-md);
    border: 1px solid var(--border-light);
    text-align: center;
}

.stat-value {
    font-size: 1.5rem;
    font-weight: bold;
}

.stat-label {
    font-size: 0.85rem;
    color: var(--text-muted);
}

/* Tool: Copy Markdown */
.options-panel {
    background: var(--bg-surface);
    padding: 1.5rem;
    border-radius: var(--radius-md);
    border: 1px solid var(--border-light);
    margin: 1.5rem 0;
}

.options-panel h2 {
    font-size: 1.2rem;
    margin-bottom: 1rem;
    color: var(--primary);
}

.option-group {
    display: flex;
    flex-wrap: wrap;
    gap: 1.5rem;
    margin-bottom: 1rem;
}

.checkbox-label {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    cursor: pointer;
    font-size: 0.95rem;
}

.filename-input-group {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    margin-top: 1rem;
}

.filename-input-group input {
    flex: 1;
    max-width: 300px;
}

.action-buttons {
    display: flex;
    flex-wrap: wrap;
    gap: 1rem;
    justify-content: center;
    margin-top: 1.5rem;
}

.action-buttons .btn {
    min-width: 180px;
}

body.solo-view .container {
    max-width: 100%;
    padding: 0;
    margin: 0;
}

body.solo-view .big-text-canvas {
    border: none;
}

body.solo-view .big-text-controls {
    display: none;
}

/* Component: Tabs */
.tabs {
    display: flex;
    gap: 1rem;
    border-bottom: 1px solid var(--border-light);
    margin-bottom: 1.5rem;
}

.tab {
    padding: 0.75rem 1.5rem;
    border: none;
    background: none;
    color: var(--text-muted);
    font-weight: 600;
    cursor: pointer;
    border-bottom: 2px solid transparent;
    transition: all var(--transition-fast);
}

.tab:hover {
    color: var(--text-main);
}

.tab.active {
    color: var(--primary);
    border-bottom-color: var(--primary);
}

.tab-content {
    display: none;
    animation: fadeIn 0.3s ease;
}

.tab-content.active {
    display: block;
}

/* Tool: Text Comparator */
.text-areas-container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1.5rem;
    margin-bottom: 1.5rem;
}

@media (max-width: 768px) {
    .text-areas-container {
        grid-template-columns: 1fr;
    }
}

.diff-results {
    background: var(--bg-surface);
    padding: 1.5rem;
    border-radius: var(--radius-md);
    border: 1px solid var(--border-light);
    min-height: 100px;
    white-space: pre-wrap;
    font-family: monospace;
    line-height: 1.6;
}

.diff-added {
    background-color: rgba(34, 197, 94, 0.2);
    color: #15803d;
    text-decoration: none;
}

.diff-removed {
    margin-top: 2rem;
}

.tool-card {
    text-decoration: none;
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    gap: 1rem;
}

.tool-icon {
    font-size: 2.5rem;
    background: var(--bg-body);
    width: 80px;
    height: 80px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.2rem;
    opacity: 0.6;
    transition: opacity var(--transition-fast);
    z-index: 100;
    background: transparent;
}

.logo.floating-logo:hover {
    opacity: 1;
}

.temp-container {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 4rem;
    width: 100%;
    max-width: 500px;
    padding: 2rem;
    z-index: 10;
}

.temp-label {
    font-family: var(--font-heading);
    font-size: clamp(3rem, 8vw, 6rem);
    font-weight: 300;
    /* Thinner for elegance */
    letter-spacing: -0.02em;
    text-shadow: 0 4px 20px rgba(0, 0, 0, 0.05);
    transition: color 0.3s;
    user-select: none;
    text-align: center;
}

.temp-controls-minimal {
    width: 100%;
    display: flex;
    flex-direction: column;
    gap: 2.5rem;
}

.slider-group {
    width: 100%;
    display: flex;
    align-items: center;
    position: relative;
}

/* Minimalist Slider */
.temp-slider-minimal {
    width: 100%;
    height: 2px;
    /* Thinner track */
    -webkit-appearance: none;
    background: rgba(0, 0, 0, 0.1);
    border-radius: 1px;
    outline: none;
    transition: background 0.3s;
    cursor: pointer;
}

.temp-slider-minimal::-webkit-slider-thumb {
    -webkit-appearance: none;
    width: 18px;
    height: 18px;
    border-radius: 50%;
    background: currentColor;
    /* Uses the text color which contrasts with bg */
    cursor: pointer;
    box-shadow: 0 0 0 4px rgba(255, 255, 255, 0.5);
    /* Elegant halo */
    transition: transform 0.2s, box-shadow 0.2s;
    border: 1px solid rgba(0, 0, 0, 0.05);
}

.temp-slider-minimal::-webkit-slider-thumb:hover {
    transform: scale(1.1);
    box-shadow: 0 0 0 6px rgba(255, 255, 255, 0.3);
}

/* Dark mode adjustments for slider */
.temp-color-body.is-dark .temp-slider-minimal {
    background: rgba(255, 255, 255, 0.15);
}

.temp-color-body.is-dark .temp-slider-minimal::-webkit-slider-thumb {
    box-shadow: 0 0 0 4px rgba(0, 0, 0, 0.3);
}

.temp-color-body.is-dark .temp-slider-minimal::-webkit-slider-thumb:hover {
    box-shadow: 0 0 0 6px rgba(0, 0, 0, 0.2);
}