/**
 * The Persephanie Chronicles - Gothic Stylesheet
 * A dark, atmospheric design for the book series website
 */

/* ============================================================================
   CSS CUSTOM PROPERTIES (Variables)
   ============================================================================ */
:root {
    /* Primary Colors */
    --color-black: #0a0a0a;
    --color-black-deep: #050505;
    --color-charcoal: #1a1a1a;
    --color-dark-gray: #2a2a2a;
    --color-medium-gray: #3a3a3a;
    --color-light-gray: #666666;

    /* Accent Colors */
    --color-blood-red: #8b0000;
    --color-blood-red-dark: #6a0000;
    --color-blood-red-light: #a52a2a;
    --color-crimson: #dc143c;

    /* Highlight Colors */
    --color-gold: #d4af37;
    --color-gold-dark: #b8960c;
    --color-gold-light: #e6c768;
    --color-antique-gold: #c9a227;

    /* Text Colors */
    --color-bone: #f5f5dc;
    --color-cream: #faf0e6;
    --color-parchment: #e8dcc4;
    --color-white: #ffffff;
    --color-text-muted: #999999;

    /* Typography */
    --font-display: 'Cinzel Decorative', 'Cinzel', serif;
    --font-heading: 'Cinzel', serif;
    --font-body: 'Crimson Text', 'IM Fell English', Georgia, serif;
    --font-accent: 'IM Fell English', Georgia, serif;

    /* Spacing */
    --spacing-xs: 0.25rem;
    --spacing-sm: 0.5rem;
    --spacing-md: 1rem;
    --spacing-lg: 2rem;
    --spacing-xl: 3rem;
    --spacing-xxl: 5rem;

    /* Borders */
    --border-thin: 1px solid var(--color-medium-gray);
    --border-gold: 1px solid var(--color-gold);
    --border-blood: 2px solid var(--color-blood-red);

    /* Shadows */
    --shadow-sm: 0 2px 4px rgba(0, 0, 0, 0.5);
    --shadow-md: 0 4px 8px rgba(0, 0, 0, 0.6);
    --shadow-lg: 0 8px 16px rgba(0, 0, 0, 0.7);
    --shadow-glow-gold: 0 0 20px rgba(212, 175, 55, 0.3);
    --shadow-glow-red: 0 0 20px rgba(139, 0, 0, 0.4);

    /* Transitions */
    --transition-fast: 0.2s ease;
    --transition-medium: 0.3s ease;
    --transition-slow: 0.5s ease;

    /* Z-index layers */
    --z-background: -1;
    --z-content: 1;
    --z-nav: 100;
    --z-modal: 1000;
}

/* ============================================================================
   CSS RESET & BASE STYLES
   ============================================================================ */
*,
*::before,
*::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html {
    font-size: 16px;
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-body);
    font-size: 1.125rem;
    line-height: 1.8;
    color: var(--color-bone);
    background-color: var(--color-black);
    min-height: 100vh;
    overflow-x: hidden;
    position: relative;
}

/* Gothic background overlay */
.gothic-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background:
        radial-gradient(ellipse at center, transparent 0%, var(--color-black) 100%),
        url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='noise'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.8' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23noise)'/%3E%3C/svg%3E");
    opacity: 0.05;
    pointer-events: none;
    z-index: var(--z-background);
}

/* ============================================================================
   TYPOGRAPHY
   ============================================================================ */
h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-heading);
    font-weight: 600;
    line-height: 1.3;
    color: var(--color-cream);
    text-transform: uppercase;
    letter-spacing: 0.1em;
    margin-bottom: var(--spacing-md);
}

h1 {
    font-family: var(--font-display);
    font-size: clamp(2rem, 5vw, 3.5rem);
    letter-spacing: 0.15em;
}

h2 {
    font-size: clamp(1.5rem, 4vw, 2.5rem);
}

h3 {
    font-size: clamp(1.25rem, 3vw, 1.75rem);
}

h4 {
    font-size: 1.25rem;
}

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

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

a:hover {
    color: var(--color-gold-light);
}

strong {
    color: var(--color-cream);
    font-weight: 600;
}

em {
    font-family: var(--font-accent);
    font-style: italic;
}

blockquote {
    font-family: var(--font-accent);
    font-style: italic;
    font-size: 1.25rem;
    color: var(--color-parchment);
    border-left: 3px solid var(--color-gold);
    padding-left: var(--spacing-lg);
    margin: var(--spacing-lg) 0;
}

/* ============================================================================
   LAYOUT
   ============================================================================ */
.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-lg);
}

.site-main {
    padding: var(--spacing-xl) 0;
    min-height: calc(100vh - 200px);
}

section {
    padding: var(--spacing-xxl) 0;
}

/* ============================================================================
   HEADER & NAVIGATION
   ============================================================================ */
.site-header {
    position: sticky;
    top: 0;
    z-index: var(--z-nav);
    background: linear-gradient(to bottom, var(--color-black) 0%, rgba(10, 10, 10, 0.95) 100%);
    border-bottom: var(--border-thin);
    backdrop-filter: blur(10px);
}

.main-nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--spacing-md) 0;
}

.site-logo {
    display: flex;
    align-items: center;
}

.logo-text {
    font-family: var(--font-display);
    font-size: 1.5rem;
    color: var(--color-gold);
    letter-spacing: 0.1em;
    text-transform: uppercase;
    transition: text-shadow var(--transition-medium);
}

.logo-text:hover {
    text-shadow: var(--shadow-glow-gold);
}

.nav-toggle {
    display: none;
    background: none;
    border: none;
    cursor: pointer;
    padding: var(--spacing-sm);
}

.nav-toggle-icon,
.nav-toggle-icon::before,
.nav-toggle-icon::after {
    display: block;
    width: 25px;
    height: 2px;
    background-color: var(--color-gold);
    transition: transform var(--transition-fast);
}

.nav-toggle-icon::before,
.nav-toggle-icon::after {
    content: '';
    position: absolute;
}

.nav-toggle-icon {
    position: relative;
}

.nav-toggle-icon::before {
    top: -8px;
}

.nav-toggle-icon::after {
    top: 8px;
}

.nav-links {
    display: flex;
    list-style: none;
    gap: var(--spacing-lg);
}

.nav-links a {
    font-family: var(--font-heading);
    font-size: 0.9rem;
    color: var(--color-bone);
    text-transform: uppercase;
    letter-spacing: 0.15em;
    padding: var(--spacing-sm) 0;
    position: relative;
    transition: color var(--transition-fast);
}

.nav-links a::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 1px;
    background: var(--color-gold);
    transition: width var(--transition-medium);
}

.nav-links a:hover,
.nav-links a.active {
    color: var(--color-gold);
}

.nav-links a:hover::after,
.nav-links a.active::after {
    width: 100%;
}

/* ============================================================================
   HERO SECTION
   ============================================================================ */
.hero {
    position: relative;
    min-height: 90vh;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    padding: var(--spacing-xxl) var(--spacing-lg);
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background:
        radial-gradient(ellipse at center top, rgba(139, 0, 0, 0.2) 0%, transparent 60%),
        radial-gradient(ellipse at center bottom, rgba(212, 175, 55, 0.1) 0%, transparent 50%);
    pointer-events: none;
}

.hero-content {
    position: relative;
    z-index: 1;
    max-width: 900px;
    animation: fadeInUp 1s ease-out;
}

.hero-title {
    font-family: var(--font-display);
    font-size: clamp(2.5rem, 8vw, 5rem);
    color: var(--color-cream);
    text-shadow:
        0 0 40px rgba(212, 175, 55, 0.3),
        2px 2px 4px rgba(0, 0, 0, 0.8);
    margin-bottom: var(--spacing-md);
    letter-spacing: 0.2em;
}

.hero-subtitle {
    font-family: var(--font-accent);
    font-size: clamp(1.25rem, 3vw, 1.75rem);
    color: var(--color-gold);
    font-style: italic;
    margin-bottom: var(--spacing-lg);
    letter-spacing: 0.1em;
}

.hero-tagline {
    font-size: 1.125rem;
    color: var(--color-parchment);
    margin-bottom: var(--spacing-xl);
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

/* ============================================================================
   BUTTONS
   ============================================================================ */
.btn {
    display: inline-block;
    font-family: var(--font-heading);
    font-size: 0.9rem;
    text-transform: uppercase;
    letter-spacing: 0.15em;
    padding: var(--spacing-md) var(--spacing-xl);
    border: 2px solid var(--color-gold);
    background: transparent;
    color: var(--color-gold);
    cursor: pointer;
    transition: all var(--transition-medium);
    position: relative;
    overflow: hidden;
}

.btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(212, 175, 55, 0.2), transparent);
    transition: left var(--transition-slow);
}

.btn:hover {
    background: var(--color-gold);
    color: var(--color-black);
    box-shadow: var(--shadow-glow-gold);
}

.btn:hover::before {
    left: 100%;
}

.btn-primary {
    background: var(--color-blood-red);
    border-color: var(--color-blood-red);
    color: var(--color-cream);
}

.btn-primary:hover {
    background: var(--color-blood-red-light);
    border-color: var(--color-blood-red-light);
    color: var(--color-cream);
    box-shadow: var(--shadow-glow-red);
}

.btn-large {
    padding: var(--spacing-lg) var(--spacing-xxl);
    font-size: 1rem;
}

/* ============================================================================
   BOOK SHOWCASE
   ============================================================================ */
.book-showcase {
    padding: var(--spacing-xxl) 0;
}

.book-card {
    display: grid;
    grid-template-columns: 1fr 1.5fr;
    gap: var(--spacing-xxl);
    align-items: center;
    background: linear-gradient(135deg, var(--color-charcoal) 0%, var(--color-black) 100%);
    border: var(--border-thin);
    padding: var(--spacing-xl);
    position: relative;
}

.book-card::before {
    content: '';
    position: absolute;
    top: -1px;
    left: 20%;
    right: 20%;
    height: 2px;
    background: linear-gradient(90deg, transparent, var(--color-gold), transparent);
}

.book-cover {
    position: relative;
    display: inline-block;
    max-width: 350px;
}

.book-cover img {
    display: block;
    width: 100%;
    height: auto;
    box-shadow: var(--shadow-lg);
    transition: transform var(--transition-medium);
}

.book-cover:hover img {
    transform: scale(1.02);
}

.book-cover::after {
    content: '';
    position: absolute;
    top: -10px;
    left: -10px;
    right: -10px;
    bottom: -10px;
    border: 1px solid var(--color-gold);
    opacity: 0.5;
    pointer-events: none;
}

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

.book-series {
    font-family: var(--font-accent);
    font-size: 0.9rem;
    color: var(--color-gold);
    text-transform: uppercase;
    letter-spacing: 0.2em;
    margin-bottom: var(--spacing-sm);
}

.book-title {
    font-family: var(--font-display);
    font-size: clamp(1.75rem, 4vw, 2.5rem);
    color: var(--color-cream);
    margin-bottom: var(--spacing-md);
}

.book-synopsis {
    color: var(--color-parchment);
    margin-bottom: var(--spacing-lg);
    line-height: 1.9;
}

.book-quote {
    font-family: var(--font-accent);
    font-style: italic;
    font-size: 1.25rem;
    color: var(--color-gold);
    border-left: 2px solid var(--color-blood-red);
    padding-left: var(--spacing-lg);
    margin: var(--spacing-lg) 0;
}

.book-cta {
    display: flex;
    gap: var(--spacing-md);
    flex-wrap: wrap;
}

/* ============================================================================
   COMING SOON SECTION
   ============================================================================ */
.coming-soon {
    text-align: center;
    padding: var(--spacing-xxl) 0;
    background: linear-gradient(to bottom, transparent, rgba(139, 0, 0, 0.1), transparent);
}

.coming-soon-content {
    max-width: 700px;
    margin: 0 auto;
    padding: var(--spacing-xl);
    border: 1px solid var(--color-medium-gray);
    position: relative;
}

.coming-soon-content::before,
.coming-soon-content::after {
    content: '❧';
    font-size: 1.5rem;
    color: var(--color-gold);
    position: absolute;
}

.coming-soon-content::before {
    top: -15px;
    left: 50%;
    transform: translateX(-50%);
}

.coming-soon-content::after {
    bottom: -15px;
    left: 50%;
    transform: translateX(-50%) rotate(180deg);
}

.coming-soon h2 {
    font-family: var(--font-display);
    color: var(--color-gold);
    margin-bottom: var(--spacing-md);
}

.coming-soon p {
    color: var(--color-parchment);
    font-style: italic;
}

/* ============================================================================
   SECTION DIVIDERS & ORNAMENTS
   ============================================================================ */
.section-divider {
    display: flex;
    align-items: center;
    justify-content: center;
    margin: var(--spacing-xxl) 0;
}

.section-divider::before,
.section-divider::after {
    content: '';
    flex: 1;
    height: 1px;
    background: linear-gradient(90deg, transparent, var(--color-medium-gray), transparent);
}

.divider-ornament {
    font-size: 1.5rem;
    color: var(--color-gold);
    padding: 0 var(--spacing-lg);
}

.divider-ornament::before {
    content: '✦';
}

/* ============================================================================
   AUTHOR SECTION
   ============================================================================ */
.author-section {
    padding: var(--spacing-xxl) 0;
}

.author-card {
    display: grid;
    grid-template-columns: 300px 1fr;
    gap: var(--spacing-xl);
    align-items: start;
    background: var(--color-charcoal);
    padding: var(--spacing-xl);
    border: var(--border-thin);
}

.author-photo {
    position: relative;
}

.author-photo img {
    width: 100%;
    height: auto;
    filter: grayscale(30%);
    transition: filter var(--transition-medium);
}

.author-photo:hover img {
    filter: grayscale(0%);
}

.author-photo::before {
    content: '';
    position: absolute;
    inset: -10px;
    border: 1px solid var(--color-gold);
    opacity: 0.5;
}

.author-placeholder {
    width: 100%;
    aspect-ratio: 3/4;
    background:
        linear-gradient(135deg, var(--color-dark-gray) 0%, var(--color-black) 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    font-family: var(--font-display);
    font-size: 4rem;
    color: var(--color-gold);
    opacity: 0.5;
}

.author-bio h2 {
    color: var(--color-gold);
    margin-bottom: var(--spacing-lg);
}

.author-bio p {
    color: var(--color-parchment);
    margin-bottom: var(--spacing-md);
}

/* ============================================================================
   CONTACT FORM
   ============================================================================ */
.contact-section {
    padding: var(--spacing-xxl) 0;
}

.contact-form {
    max-width: 600px;
    margin: 0 auto;
    background: var(--color-charcoal);
    padding: var(--spacing-xl);
    border: var(--border-thin);
}

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

.form-group label {
    display: block;
    font-family: var(--font-heading);
    font-size: 0.9rem;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--color-gold);
    margin-bottom: var(--spacing-sm);
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: var(--spacing-md);
    background: var(--color-black);
    border: 1px solid var(--color-medium-gray);
    color: var(--color-cream);
    font-family: var(--font-body);
    font-size: 1rem;
    transition: border-color var(--transition-fast);
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--color-gold);
}

.form-group textarea {
    min-height: 150px;
    resize: vertical;
}

.form-group input::placeholder,
.form-group textarea::placeholder {
    color: var(--color-light-gray);
}

.form-error {
    color: var(--color-blood-red-light);
    font-size: 0.9rem;
    margin-top: var(--spacing-xs);
}

.form-success {
    color: var(--color-gold);
    font-size: 0.9rem;
    margin-top: var(--spacing-xs);
}

/* ============================================================================
   ALERT MESSAGES
   ============================================================================ */
.alert {
    padding: var(--spacing-md) var(--spacing-lg);
    margin-bottom: var(--spacing-lg);
    border-left: 3px solid;
}

.alert-success {
    background: rgba(212, 175, 55, 0.1);
    border-color: var(--color-gold);
    color: var(--color-gold);
}

.alert-error {
    background: rgba(139, 0, 0, 0.1);
    border-color: var(--color-blood-red);
    color: var(--color-blood-red-light);
}

.alert-info {
    background: rgba(102, 102, 102, 0.1);
    border-color: var(--color-light-gray);
    color: var(--color-bone);
}

/* ============================================================================
   FOOTER
   ============================================================================ */
.site-footer {
    background: var(--color-black-deep);
    border-top: var(--border-thin);
    padding: var(--spacing-xxl) 0 var(--spacing-lg);
}

.footer-divider {
    display: flex;
    justify-content: center;
    margin-bottom: var(--spacing-xl);
}

.footer-divider .divider-ornament::before {
    content: '☽ ✦ ☾';
    letter-spacing: 0.5em;
}

.footer-content {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr;
    gap: var(--spacing-xl);
    margin-bottom: var(--spacing-xl);
}

.footer-title {
    font-family: var(--font-display);
    font-size: 1.25rem;
    color: var(--color-gold);
    margin-bottom: var(--spacing-sm);
}

.footer-tagline {
    font-family: var(--font-accent);
    font-style: italic;
    color: var(--color-parchment);
}

.footer-links h4,
.footer-social h4 {
    font-size: 0.9rem;
    color: var(--color-gold);
    margin-bottom: var(--spacing-md);
}

.footer-links ul {
    list-style: none;
}

.footer-links li {
    margin-bottom: var(--spacing-sm);
}

.footer-links a {
    color: var(--color-parchment);
    font-size: 0.95rem;
    transition: color var(--transition-fast);
}

.footer-links a:hover {
    color: var(--color-gold);
}

.social-icons {
    display: flex;
    gap: var(--spacing-md);
}

.social-link {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    border: 1px solid var(--color-medium-gray);
    color: var(--color-parchment);
    transition: all var(--transition-fast);
}

.social-link:hover {
    border-color: var(--color-gold);
    color: var(--color-gold);
    background: rgba(212, 175, 55, 0.1);
}

.footer-bottom {
    text-align: center;
    padding-top: var(--spacing-lg);
    border-top: var(--border-thin);
}

.copyright {
    font-family: var(--font-heading);
    font-size: 0.85rem;
    color: var(--color-text-muted);
    letter-spacing: 0.1em;
    margin-bottom: var(--spacing-xs);
}

.footer-note {
    font-size: 0.8rem;
    color: var(--color-light-gray);
    font-style: italic;
}

/* ============================================================================
   ANIMATIONS
   ============================================================================ */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

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

@keyframes pulse {
    0%, 100% {
        opacity: 1;
    }
    50% {
        opacity: 0.7;
    }
}

@keyframes flicker {
    0%, 100% {
        opacity: 1;
    }
    50% {
        opacity: 0.8;
    }
}

.fade-in {
    animation: fadeIn 0.8s ease-out;
}

.fade-in-up {
    animation: fadeInUp 0.8s ease-out;
}

/* Scroll reveal animation class */
.reveal {
    opacity: 0;
    transform: translateY(20px);
    transition: opacity 0.6s ease, transform 0.6s ease;
}

.reveal.visible {
    opacity: 1;
    transform: translateY(0);
}

/* ============================================================================
   PAGE-SPECIFIC STYLES
   ============================================================================ */

/* Books page */
.books-hero {
    text-align: center;
    padding: var(--spacing-xxl) 0;
    border-bottom: var(--border-thin);
}

.book-list {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xxl);
}

.book-item {
    padding: var(--spacing-xl) 0;
    border-bottom: var(--border-thin);
}

.book-item:last-child {
    border-bottom: none;
}

/* Author page */
.author-hero {
    text-align: center;
    padding: var(--spacing-xl) 0;
}

.author-content {
    max-width: 800px;
    margin: 0 auto;
}

/* Contact page */
.contact-hero {
    text-align: center;
    padding: var(--spacing-xl) 0;
}

.contact-intro {
    max-width: 600px;
    margin: 0 auto var(--spacing-xl);
    text-align: center;
}

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

/* Tablet */
@media (max-width: 992px) {
    .book-card {
        grid-template-columns: 1fr;
        text-align: center;
    }

    .book-cover {
        display: flex;
        justify-content: center;
    }

    .book-cta {
        justify-content: center;
    }

    .author-card {
        grid-template-columns: 1fr;
        text-align: center;
    }

    .author-photo {
        display: flex;
        justify-content: center;
    }

    .author-photo img,
    .author-placeholder {
        max-width: 300px;
    }

    .footer-content {
        grid-template-columns: 1fr 1fr;
    }

    .footer-brand {
        grid-column: span 2;
        text-align: center;
        margin-bottom: var(--spacing-lg);
    }
}

/* Mobile */
@media (max-width: 768px) {
    :root {
        --spacing-xl: 2rem;
        --spacing-xxl: 3rem;
    }

    .nav-toggle {
        display: block;
    }

    .nav-links {
        position: fixed;
        top: 70px;
        left: 0;
        right: 0;
        background: var(--color-black);
        flex-direction: column;
        align-items: center;
        padding: var(--spacing-lg);
        gap: var(--spacing-md);
        border-bottom: var(--border-thin);
        transform: translateY(-100%);
        opacity: 0;
        visibility: hidden;
        transition: all var(--transition-medium);
    }

    .nav-links.active {
        transform: translateY(0);
        opacity: 1;
        visibility: visible;
    }

    .hero {
        min-height: 80vh;
    }

    .book-card {
        padding: var(--spacing-lg);
    }

    .footer-content {
        grid-template-columns: 1fr;
        text-align: center;
    }

    .footer-brand,
    .footer-links,
    .footer-social {
        text-align: center;
    }

    .social-icons {
        justify-content: center;
    }
}

/* Small mobile */
@media (max-width: 480px) {
    html {
        font-size: 14px;
    }

    .container {
        padding: 0 var(--spacing-md);
    }

    .btn {
        width: 100%;
        text-align: center;
    }

    .book-cta {
        flex-direction: column;
    }
}

/* ============================================================================
   UTILITY CLASSES
   ============================================================================ */
.text-center {
    text-align: center;
}

.text-gold {
    color: var(--color-gold);
}

.text-blood {
    color: var(--color-blood-red);
}

.mb-0 {
    margin-bottom: 0;
}

.mb-1 {
    margin-bottom: var(--spacing-sm);
}

.mb-2 {
    margin-bottom: var(--spacing-md);
}

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

.mb-4 {
    margin-bottom: var(--spacing-xl);
}

.mt-4 {
    margin-top: var(--spacing-xl);
}

.hidden {
    display: none !important;
}

.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;
}