/* =============================================================================
   CSS Custom Properties (Variables)
   ============================================================================= */
:root {
    /* Colors */
    --primary-color: #4285f4;
    --primary-hover: #3367d6;
    --secondary-color: #333;
    --background-color: #f5f5f5;
    --text-color: #333;
    --text-light: #666;
    --text-white: #fff;
    --border-color: #ddd;
    --shadow-light: rgba(0, 0, 0, 0.1);
    --shadow-medium: rgba(0, 0, 0, 0.15);
    --shadow-dark: rgba(0, 0, 0, 0.25);

    /* Spacing */
    --spacing-xs: 5px;
    --spacing-sm: 10px;
    --spacing-md: 15px;
    --spacing-lg: 20px;
    --spacing-xl: 30px;
    --spacing-xxl: 40px;

    /* Layout */
    --border-radius: 5px;
    --border-radius-lg: 8px;
    --container-max-width: 1200px;
    --container-padding: 20px;

    /* Effects */
    --shadow: 0 2px 5px var(--shadow-light);
    --shadow-hover: 0 4px 15px var(--shadow-medium);
    --transition: all 0.3s ease;
    --focus-outline: 2px solid var(--primary-color);
    --focus-offset: 2px;

    /* Typography */
    --font-family-base: "Inter", Arial, sans-serif;
    --font-family-mono: "Courier New", monospace;
    --font-size-base: 1rem;
    --font-size-lg: 1.1rem;
    --font-size-xl: 1.2rem;
    --line-height-base: 1.6;
    --line-height-tight: 1.2;

    /* Z-index scale */
    --z-dropdown: 100;
    --z-modal: 1000;
    --z-tooltip: 1001;
}

/* =============================================================================
   Base Styles and Reset
   ============================================================================= */
*,
*::before,
*::after {
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
    overflow-x: hidden;
}

body {
    font-family: var(--font-family-base);
    line-height: var(--line-height-base);
    color: var(--text-color);
    margin: 0;
    padding: 0;
    background-color: var(--background-color);
    overflow-x: hidden;
    width: 100%;
    max-width: 100vw;
}

/* =============================================================================
   Typography
   ============================================================================= */
h1,
h2,
h3,
.ascii-art {
    font-family: var(--font-family-mono);
}

h1 {
    font-size: 2.5rem;
    margin: 1.5rem 0 1rem 0;
    line-height: var(--line-height-tight);
}

h2 {
    font-size: 2rem;
    margin: 1.5rem 0 1rem 0;
    line-height: 1.3;
}

h3 {
    font-size: 1.5rem;
    margin: 1.25rem 0 0.75rem 0;
    line-height: 1.4;
}

h4 {
    font-size: 1.25rem;
    margin: 1rem 0 0.5rem 0;
    line-height: 1.4;
}

h5 {
    font-size: var(--font-size-lg);
    margin: 0.875rem 0 0.5rem 0;
    line-height: 1.5;
}

h6 {
    font-size: var(--font-size-base);
    margin: 0.75rem 0 0.5rem 0;
    line-height: 1.5;
}

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

a:hover {
    text-decoration: underline;
}

/* =============================================================================
   Layout Components
   ============================================================================= */
.container {
    width: 100%;
    max-width: var(--container-max-width);
    margin: 0 auto;
    padding: 0 var(--container-padding);
    overflow-x: hidden;
}

main {
    width: 90%;
    max-width: var(--container-max-width);
    margin: 0 auto;
    padding: var(--container-padding);
    overflow-x: hidden;
}

section {
    margin: var(--spacing-xxl) 0;
    padding: var(--spacing-lg);
    background-color: var(--text-white);
    border-radius: var(--border-radius);
    box-shadow: var(--shadow);
}

/* =============================================================================
   Navigation
   ============================================================================= */
header {
    background-color: var(--secondary-color);
    padding: var(--spacing-sm) 0;
    position: sticky;
    top: 0;
    z-index: var(--z-dropdown);
    box-shadow: var(--shadow);
}

nav ul {
    list-style: none;
    display: flex;
    justify-content: center;
    padding: 0;
    margin: 0;
}

nav li {
    margin: 0 var(--spacing-md);
}

nav a {
    color: var(--text-white);
    text-decoration: none;
    font-size: var(--font-size-xl);
    transition: var(--transition);
    padding: 8px 12px;
    border-radius: var(--border-radius);
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 44px;
}

nav a:hover,
nav a:focus-visible {
    color: var(--text-white);
    background-color: var(--primary-color);
    outline: none;
    transform: translateY(-1px);
}

.menu-toggle {
    display: none;
    color: var(--text-white);
    background: none;
    border: none;
    font-size: 1.5rem;
    cursor: pointer;
    padding: 12px;
    border-radius: var(--border-radius);
    min-height: 44px;
    min-width: 44px;
    transition: var(--transition);
}

.menu-toggle:hover,
.menu-toggle:focus-visible {
    background-color: var(--primary-color);
    outline: none;
    transform: scale(1.05);
}

/* =============================================================================
   Buttons and Interactive Elements
   ============================================================================= */
.btn {
    padding: 12px var(--spacing-lg);
    border: none;
    border-radius: var(--border-radius);
    cursor: pointer;
    font-weight: bold;
    transition: var(--transition);
    min-height: 44px;
    text-decoration: none;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    position: relative;
    overflow: hidden;
}

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

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

.btn:active {
    transform: translateY(-1px);
}

.btn-primary {
    background-color: var(--primary-color);
    color: var(--text-white);
}

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

.btn-secondary {
    background-color: var(--text-light);
    color: var(--text-white);
}

.btn-secondary:hover {
    background-color: #555;
}

.btn-large {
    padding: var(--spacing-md) var(--spacing-xl);
    font-size: var(--font-size-lg);
}

.btn-block {
    width: 100%;
    display: block;
}

/* =============================================================================
   Footer
   ============================================================================= */
.footer {
    width: 100%;
    background: #222;
    color: var(--text-white);
    padding: 28px 0 18px 0;
    text-align: center;
    margin-top: var(--spacing-xxl);
}

.footer__container {
    max-width: 700px;
    margin: 0 auto;
}

.footer__github-link {
    display: inline-block;
    color: var(--text-white);
    background: linear-gradient(90deg, #ffb347 0%, #ff7e5f 100%);
    padding: 12px 32px;
    border-radius: var(--border-radius-lg);
    font-size: 1.15rem;
    font-weight: bold;
    text-decoration: none;
    box-shadow: 0 2px 12px rgba(255, 126, 95, 0.1);
    margin: 0 auto;
    transition:
        background 0.2s,
        transform 0.2s;
}

.footer__github-link:hover {
    transform: scale(1.06);
    background: linear-gradient(90deg, #ff7e5f 0%, #ffb347 100%);
}

.footer__github-link-text {
    text-decoration: underline;
}

/* =============================================================================
   Cookie Banner
   ============================================================================= */
.site-notice {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    width: 100%;
    background: linear-gradient(135deg, #ffb347 0%, #ff7e5f 100%);
    color: var(--text-white);
    padding: var(--spacing-lg);
    text-align: center;
    z-index: var(--z-modal);
    display: none;
    border-radius: 0;
    box-shadow: 0 4px 16px var(--shadow-dark);
    overflow-y: auto;
    max-height: 80vh;
    font-size: 14px;
    line-height: 1.5;
}

.site-notice p {
    margin: 0 0 var(--spacing-md) 0;
    color: var(--text-white);
}

.site-notice ul {
    margin: var(--spacing-sm) 0;
    padding-left: var(--spacing-lg);
    text-align: left;
    display: inline-block;
}

.site-notice li {
    margin: 8px 0;
    color: var(--text-white);
}

.site-notice button {
    background-color: var(--primary-color);
    color: var(--text-white);
    border: none;
    padding: var(--spacing-sm) var(--spacing-lg);
    margin: 0 var(--spacing-sm);
    border-radius: 3px;
    cursor: pointer;
    font-size: 14px;
    transition:
        background 0.2s,
        transform 0.2s,
        box-shadow 0.2s;
    box-shadow: 0 2px 8px rgba(66, 133, 244, 0.1);
    min-width: 120px;
}

.site-notice button:hover,
.site-notice button:focus {
    background-color: #357ae8;
    transform: translateY(-2px) scale(1.04);
    box-shadow: 0 4px 16px rgba(66, 133, 244, 0.18);
}

.site-notice .btn-secondary {
    background-color: #666;
}

.site-notice .btn-secondary:hover,
.site-notice .btn-secondary:focus {
    background-color: #555;
}

body.cookie-banner-shown {
    overflow: hidden;
    padding-top: 200px;
}

body.cookie-banner-shown main {
    filter: blur(8px);
    opacity: 0.3;
    pointer-events: none;
}

body.cookie-banner-shown .back-link {
    filter: none !important;
    opacity: 1 !important;
    pointer-events: auto !important;
    position: fixed;
    bottom: var(--spacing-lg);
    left: 50%;
    transform: translateX(-50%);
    z-index: var(--z-tooltip);
    background: rgba(255, 255, 255, 0.98);
    padding: var(--spacing-md) 25px;
    border-radius: var(--border-radius-lg);
    max-width: 300px;
    text-align: center;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.2);
    border: 2px solid var(--primary-color);
}

body.cookie-banner-shown footer {
    filter: blur(8px);
    opacity: 0.3;
    pointer-events: none;
}

.site-notice__list {
    text-align: left;
    margin: 0 auto var(--spacing-sm) auto;
    max-width: 500px;
    font-size: 0.97em;
}

.payment-method-text {
    text-align: center;
    color: var(--text-light);
    margin: var(--spacing-lg) 0;
}

.decline-message {
    display: none;
    text-align: center;
    margin-top: var(--spacing-lg);
}

.osm-map-decline-section {
    margin-top: var(--spacing-xl);
    text-align: center;
    display: none;
}

/* =============================================================================
   Forms and Inputs
   ============================================================================= */
input,
textarea,
select {
    font-family: inherit;
    font-size: var(--font-size-base);
    padding: var(--spacing-sm) 12px;
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    transition: var(--transition);
}

input:focus,
textarea:focus,
select:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(66, 133, 244, 0.1);
}

/* =============================================================================
   Content Components
   ============================================================================= */
.contact-info {
    text-align: center;
    margin: var(--spacing-lg) 0;
}

.contact-info p {
    margin: var(--spacing-sm) 0;
    font-size: var(--font-size-lg);
}

.contact-info a {
    color: var(--primary-color);
    text-decoration: none;
    font-weight: bold;
}

.signal-group {
    margin: var(--spacing-lg) 0;
    text-align: center;
}

.signal-text {
    font-size: var(--font-size-lg);
    margin-bottom: var(--spacing-sm);
    color: var(--text-color);
}

.signal-qr {
    display: block;
    margin: var(--spacing-sm) auto;
    border-radius: var(--border-radius);
    transition: transform 0.2s;
    width: 120px;
    height: 120px;
    max-width: 30vw;
    max-height: 30vw;
}

.signal-qr:hover {
    transform: scale(1.05);
}

.signal-hint {
    font-size: 0.9rem;
    color: var(--text-light);
    margin-top: var(--spacing-sm);
}

.address {
    margin: var(--spacing-lg) 0;
    font-size: var(--font-size-lg);
    line-height: var(--line-height-base);
}

.back-link {
    text-align: center;
    margin: var(--spacing-xl) 0;
}

.back-link a {
    color: var(--primary-color);
    text-decoration: none;
    font-size: var(--font-size-lg);
    font-weight: bold;
}

/* =============================================================================
   Donation Components
   ============================================================================= */
.donation-buttons {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
    margin: var(--spacing-lg) 0;
    align-items: center;
}

.donation-buttons a {
    padding: var(--spacing-md) 25px;
    text-align: center;
    min-width: 200px;
    color: var(--text-white);
}

.donation-buttons a:hover {
    transform: translateY(-3px);
}

.donation-item {
    padding: var(--spacing-lg);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    background-color: #f9f9f9;
    text-align: center;
    margin-bottom: var(--spacing-lg);
}

.donation-item h3 {
    margin-top: 0;
    color: var(--text-color);
    font-family: var(--font-family-mono);
}

.donation-item iframe {
    border: none;
    width: 100%;
    padding: 4px;
    background: #f9f9f9;
    border-radius: var(--border-radius);
}

/* =============================================================================
   Calendar Components
   ============================================================================= */
.calendar-container {
    margin: var(--spacing-lg) 0;
    text-align: center;
}

.calendar-container iframe {
    max-width: 100%;
    border-radius: var(--border-radius);
    border: 0;
}

.calendar-placeholder {
    width: 800px;
    max-width: 100%;
    height: 600px;
    background: #f5f5f5;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: var(--border-radius);
    border: 2px dashed #ccc;
}

.calendar-placeholder p {
    color: var(--text-light);
    margin: 0;
}

.calendar-controls {
    margin: var(--spacing-lg) 0;
    text-align: center;
}

.calendar-controls > div {
    display: flex;
    justify-content: center;
    gap: var(--spacing-lg);
    flex-wrap: wrap;
    margin-bottom: var(--spacing-md);
}

.calendar-controls label {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
}

.calendar-downloads {
    margin: var(--spacing-lg) 0;
    text-align: center;
}

.calendar-downloads > div {
    display: flex;
    justify-content: center;
    gap: var(--spacing-md);
    flex-wrap: wrap;
    margin-bottom: var(--spacing-sm);
}

.calendar-fallback {
    font-size: 0.9em;
    color: var(--text-light);
    margin-bottom: var(--spacing-lg);
}

.linkup-description {
    margin: var(--spacing-lg) 0;
    padding: var(--spacing-lg);
    background-color: #eef;
    border-radius: var(--border-radius);
    box-shadow: var(--shadow);
}

.linkup-description h3 {
    margin-top: 0;
    color: var(--text-color);
}

.privacy-notice {
    background-color: #f8f9fa;
    padding: var(--spacing-md);
    border-radius: var(--border-radius);
    border-left: 4px solid var(--primary-color);
    margin: var(--spacing-lg) 0;
}

/* =============================================================================
   ASCII Art
   ============================================================================= */
.ascii-art {
    font-family: var(--font-family-mono);
    font-size: 0.9rem;
    overflow-x: hidden;
    white-space: pre;
    background-color: #f8f9fa;
    padding: var(--spacing-md);
    border-radius: var(--border-radius);
    margin: var(--spacing-lg) 0;
    border: 1px solid #e9ecef;
    text-align: center;
    width: 100%;
    word-wrap: break-word;
    overflow-wrap: break-word;
}

.ascii-art::-webkit-scrollbar {
    height: 8px;
}

.ascii-art::-webkit-scrollbar-track {
    background: #f8f9fa;
    border-radius: var(--border-radius);
}

.ascii-art::-webkit-scrollbar-thumb {
    background: var(--primary-color);
    border-radius: var(--border-radius);
}

.ascii-art::-webkit-scrollbar-thumb:hover {
    background: var(--primary-hover);
}

/* =============================================================================
   Carousel
   ============================================================================= */
.carousel-container {
    position: relative;
    width: 100%;
    max-width: 800px;
    margin: var(--spacing-xxl) auto;
    overflow: hidden;
    border-radius: var(--border-radius);
    box-shadow: var(--shadow);
    aspect-ratio: 16/9;
    background: #eee;
}

.carousel {
    position: relative;
    width: 100%;
    height: 100%;
}

.carousel-item {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    opacity: 0;
    transition: opacity 0.5s ease-in-out;
    width: 100%;
    height: 100%;
    pointer-events: none;
}

.carousel-item.active {
    opacity: 1;
    pointer-events: auto;
    z-index: 1;
}

.carousel-item img {
    display: block;
    width: 100%;
    height: 100%;
    object-fit: cover;
    border-radius: var(--border-radius);
}

.carousel-button {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    background-color: rgba(0, 0, 0, 0.7);
    color: var(--text-white);
    border: none;
    padding: var(--spacing-md);
    cursor: pointer;
    font-size: 1.8rem;
    z-index: 2;
    border-radius: var(--border-radius);
    min-height: 50px;
    min-width: 50px;
    transition: var(--transition);
    display: flex;
    align-items: center;
    justify-content: center;
    touch-action: manipulation;
    user-select: none;
}

.carousel-button:hover {
    background-color: rgba(0, 0, 0, 0.9);
    transform: translateY(-50%) scale(1.1);
}

.carousel-button:focus-visible {
    outline: none;
    box-shadow: 0 0 0 3px var(--primary-color);
}

.carousel-button:active {
    transform: translateY(-50%) scale(0.95);
}

.carousel-button.prev {
    left: var(--spacing-sm);
}

.carousel-button.next {
    right: var(--spacing-sm);
}

.carousel-toggle {
    position: absolute;
    top: var(--spacing-sm);
    right: var(--spacing-sm);
    background: rgba(0, 0, 0, 0.6);
    color: var(--text-white);
    border: none;
    border-radius: 50%;
    width: 40px;
    height: 40px;
    font-size: 16px;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: var(--transition);
    z-index: 10;
}

.carousel-toggle:hover {
    background: rgba(0, 0, 0, 0.8);
    transform: scale(1.1);
}

.carousel-toggle:focus-visible {
    outline: none;
    box-shadow: 0 0 0 3px var(--primary-color);
}

.carousel-toggle:active {
    transform: scale(0.95);
}

.carousel-container.manual-mode .carousel-button {
    opacity: 1;
    pointer-events: all;
}

.carousel-container:not(.manual-mode) .carousel-button {
    opacity: 0.3;
    pointer-events: all;
}

.carousel-container:not(.manual-mode) .carousel-button:hover {
    opacity: 0.8;
}

.carousel-indicators {
    text-align: center;
    position: absolute;
    bottom: var(--spacing-sm);
    width: 100%;
}

.dot {
    height: 12px;
    width: 12px;
    margin: 0 var(--spacing-xs);
    background-color: rgba(255, 255, 255, 0.5);
    border-radius: 50%;
    display: inline-block;
    transition: var(--transition);
    cursor: pointer;
    border: 2px solid rgba(255, 255, 255, 0.8);
    min-height: 30px;
    min-width: 30px;
    position: relative;
    touch-action: manipulation;
    user-select: none;
}

.dot:hover {
    background-color: rgba(255, 255, 255, 0.8);
    transform: scale(1.2);
}

.dot.active {
    background-color: var(--primary-color);
    border-color: var(--primary-color);
}

.dot:focus-visible {
    outline: none;
    box-shadow: 0 0 0 3px rgba(255, 255, 255, 0.8);
}

/* =============================================================================
   Map Components
   ============================================================================= */
.map-container {
    margin-top: var(--spacing-lg);
    text-align: center;
}

.map-container iframe {
    border: 1px solid black;
}

.map-button {
    padding: var(--spacing-sm) var(--spacing-lg);
    background: var(--primary-color);
    color: var(--text-white);
    border: none;
    border-radius: var(--border-radius);
    cursor: pointer;
    font-size: var(--font-size-base);
}

/* =============================================================================
   Accessibility & Focus Management
   ============================================================================= */
*:focus-visible {
    outline: var(--focus-outline);
    outline-offset: var(--focus-offset);
    border-radius: var(--border-radius);
}

.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;
}

.skip-link {
    position: absolute;
    top: -40px;
    left: 6px;
    background: var(--primary-color);
    color: var(--text-white);
    padding: 8px;
    text-decoration: none;
    border-radius: var(--border-radius);
    z-index: var(--z-tooltip);
    transition: var(--transition);
}

.skip-link:focus {
    top: 6px;
}

/* =============================================================================
   Responsive Design
   ============================================================================= */

/* Tablet */
@media (max-width: 1200px) {
    main {
        width: 95%;
        max-width: 100vw;
    }

    .container {
        padding: 0 var(--spacing-md);
        max-width: 100vw;
    }
}

/* Mobile Navigation */
@media (max-width: 900px) {
    .menu-toggle {
        display: block;
        margin: 0 auto;
    }

    nav ul {
        flex-direction: column;
        align-items: center;
        display: none;
    }

    nav.active ul {
        display: flex;
    }

    nav li {
        margin: var(--spacing-sm) 0;
    }

    /* Typography adjustments */
    h1 {
        font-size: 2rem;
        margin: 1rem 0 0.75rem 0;
    }

    h2 {
        font-size: 1.5rem;
        margin: 1.25rem 0 0.75rem 0;
    }

    h3 {
        font-size: 1.25rem;
        margin: 1rem 0 0.5rem 0;
    }

    /* Layout adjustments */
    main {
        width: 100%;
        padding: var(--spacing-sm);
        margin: 0;
        max-width: 100vw;
    }

    .container {
        padding: 0 var(--spacing-sm);
        max-width: 100vw;
        margin: 0;
    }

    section {
        margin: var(--spacing-lg) 0;
        padding: var(--spacing-md);
    }

    /* Cookie banner adjustments */
    .site-notice {
        padding: var(--spacing-md);
        font-size: 0.9em;
    }

    body.cookie-banner-shown {
        padding-top: 180px;
    }

    body.cookie-banner-shown .back-link {
        padding: 12px var(--spacing-lg);
        max-width: 280px;
        bottom: var(--spacing-md);
    }

    .site-notice button {
        padding: var(--spacing-sm) var(--spacing-md);
        font-size: 0.9rem;
        margin: var(--spacing-sm) 0;
        width: 100%;
    }

    /* ASCII art adjustments */
    .ascii-art {
        font-size: 0.75rem;
        padding: 8px;
        margin: var(--spacing-sm) 0;
    }

    /* Donation adjustments */
    .donation-buttons {
        gap: var(--spacing-sm);
    }

    .donation-buttons a {
        min-width: 150px;
        padding: 12px var(--spacing-lg);
    }

    .donation-item {
        padding: var(--spacing-md);
        margin-bottom: var(--spacing-md);
    }

    .donation-item h3 {
        font-size: 1.2rem;
    }
}

/* Small mobile */
@media (max-width: 600px) {
    /* Carousel adjustments */
    .carousel-container {
        aspect-ratio: 4/3;
        margin: var(--spacing-lg) auto;
        max-width: calc(100vw - 20px);
    }

    .carousel-button {
        padding: 18px;
        font-size: 2rem;
        min-height: 60px;
        min-width: 60px;
    }

    .carousel-button.prev {
        left: var(--spacing-xs);
    }

    .carousel-button.next {
        right: var(--spacing-xs);
    }

    .carousel-toggle {
        width: 35px;
        height: 35px;
        font-size: 14px;
        top: var(--spacing-xs);
        right: var(--spacing-xs);
    }

    .dot {
        min-height: 35px;
        min-width: 35px;
        margin: 0 8px;
    }

    /* Layout adjustments */
    main {
        width: 100%;
        padding: 8px;
        margin: 0;
        max-width: 100vw;
    }

    .container {
        padding: 0 var(--spacing-xs);
        max-width: 100vw;
        margin: 0;
    }

    section {
        margin: var(--spacing-md) 0;
        padding: var(--spacing-sm);
    }

    /* Cookie banner adjustments */
    .site-notice {
        padding: var(--spacing-sm);
        font-size: 0.85em;
    }

    body.cookie-banner-shown {
        padding-top: 160px;
    }

    body.cookie-banner-shown .back-link {
        padding: var(--spacing-sm) 18px;
        max-width: 250px;
        font-size: 0.9rem;
        bottom: 12px;
    }

    .site-notice button {
        padding: 8px 12px;
        font-size: 0.85rem;
        display: block;
        width: 100%;
        max-width: 200px;
        margin: var(--spacing-xs) auto;
    }

    /* ASCII art adjustments */
    .ascii-art {
        font-size: 0.65rem;
        padding: var(--spacing-xs);
        margin: 8px 0;
        line-height: 1;
    }

    /* Contact adjustments */
    .contact-info p {
        font-size: var(--font-size-base);
    }

    .signal-qr {
        width: 100px !important;
        height: 100px !important;
    }

    /* Donation adjustments */
    .donation-buttons a {
        min-width: 120px;
        padding: var(--spacing-sm) var(--spacing-md);
        font-size: 0.9rem;
    }

    .donation-item {
        padding: var(--spacing-sm);
        margin-bottom: var(--spacing-sm);
    }

    .donation-item h3 {
        font-size: var(--font-size-lg);
        margin-bottom: var(--spacing-sm);
    }

    .donation-item iframe {
        height: 600px;
    }

    /* Typography adjustments */
    h1 {
        font-size: 1.75rem;
        margin: 0.875rem 0 0.625rem 0;
    }

    h2 {
        font-size: 1.375rem;
        margin: 1rem 0 0.625rem 0;
    }

    h3 {
        font-size: 1.125rem;
        margin: 0.875rem 0 0.5rem 0;
    }
}

/* Extra small mobile */
@media (max-width: 400px) {
    /* Typography adjustments */
    h1 {
        font-size: 1.5rem;
        margin: 0.75rem 0 0.5rem 0;
    }

    h2 {
        font-size: 1.25rem;
        margin: 0.875rem 0 0.5rem 0;
    }

    h3 {
        font-size: var(--font-size-base);
        margin: 0.75rem 0 0.375rem 0;
    }

    /* ASCII art adjustments */
    .ascii-art {
        font-size: 0.55rem;
        line-height: 0.9;
        padding: 3px;
        margin: var(--spacing-xs) 0;
    }

    /* Carousel adjustments */
    .carousel-container {
        margin: var(--spacing-lg) auto;
        max-width: calc(100vw - 20px);
    }

    .calendar-container {
        margin-top: var(--spacing-xl);
    }

    .carousel-button {
        padding: 12px;
        font-size: 1.5rem;
        min-height: 44px;
        min-width: 44px;
    }

    .carousel-button.prev {
        left: 2px;
    }

    .carousel-button.next {
        right: 2px;
    }

    .dot {
        min-height: 24px;
        min-width: 24px;
        margin: 0 3px;
    }

    .carousel-toggle {
        width: 30px;
        height: 30px;
        font-size: 11px;
        top: 3px;
        right: 3px;
    }

    /* Layout adjustments */
    .site-notice {
        font-size: 0.8em;
    }

    .donation-item {
        padding: 8px;
        margin-bottom: 8px;
    }

    .donation-item h3 {
        font-size: var(--font-size-base);
    }

    .donation-item iframe {
        height: 500px;
    }
}

/* =============================================================================
   Accessibility & Motion Preferences
   ============================================================================= */

/* Reduce motion for users who prefer it */
@media (prefers-reduced-motion: reduce) {
    html {
        scroll-behavior: auto;
    }

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

/* High contrast mode support */
@media (prefers-contrast: high) {
    :root {
        --primary-color: #0000ff;
        --secondary-color: #000;
        --text-color: #000;
        --background-color: #fff;
    }

    .site-notice {
        border: 2px solid var(--primary-color);
    }

    button,
    .donation-buttons a {
        border: 2px solid var(--primary-color);
    }
}

/* Dark mode support */
@media (prefers-color-scheme: dark) {
    :root {
        --primary-color: #5aa3ff;
        --secondary-color: #1a1a1a;
        --background-color: #121212;
        --text-color: #e0e0e0;
        --text-light: #aaa;
    }

    body {
        background-color: var(--background-color);
        color: var(--text-color);
    }

    section {
        background-color: #1e1e1e;
        color: var(--text-color);
    }

    .ascii-art {
        background-color: #2a2a2a;
        border-color: #444;
    }

    .site-notice {
        background-color: #1e1e1e;
        color: var(--text-color);
    }

    .linkup-description {
        background-color: #0f0f0f !important;
        border-left-color: var(--primary-color);
        color: var(--text-color) !important;
    }

    .donation-item {
        background-color: #2a2a2a;
        border-color: #444;
    }

    .donation-item h3 {
        color: var(--text-color);
    }

    .donation-item iframe {
        background: #2a2a2a;
    }
}

/* =============================================================================
   Print Styles
   ============================================================================= */
@media print {
    * {
        background: transparent !important;
        color: black !important;
        box-shadow: none !important;
        text-shadow: none !important;
    }

    a,
    a:visited {
        text-decoration: underline;
    }

    a[href]:after {
        content: " (" attr(href) ")";
    }

    .site-notice,
    .carousel-button,
    .carousel-toggle,
    .menu-toggle,
    button {
        display: none !important;
    }

    header,
    footer {
        display: none !important;
    }

    main {
        width: 100% !important;
        margin: 0 !important;
        padding: 0 !important;
    }

    .container {
        width: 100% !important;
        margin: 0 !important;
        padding: 0 !important;
    }

    section {
        break-inside: avoid;
        margin: 0 !important;
        padding: 10px !important;
        box-shadow: none !important;
    }

    .ascii-art {
        font-size: 0.6rem !important;
        line-height: 0.8 !important;
    }
}