/* =====================================================
   GRIDXELS - Main Stylesheet
   A modern, dark-themed UI for the interactive grid
   ===================================================== */

/* CSS Variables - Design Tokens */
:root {
    /* Colors */
    --color-bg-primary: #0a0a0f;
    --color-bg-secondary: #12121a;
    --color-bg-tertiary: #1a1a25;
    --color-bg-card: #16161f;
    --color-bg-hover: #1e1e2a;
    
    --color-accent-primary: #6366f1;
    --color-accent-secondary: #8b5cf6;
    --color-accent-gradient: linear-gradient(135deg, #6366f1 0%, #8b5cf6 100%);
    
    --color-text-primary: #f8fafc;
    --color-text-secondary: #94a3b8;
    --color-text-muted: #64748b;
    
    --color-success: #22c55e;
    --color-warning: #f59e0b;
    --color-error: #ef4444;
    
    --color-border: rgba(255, 255, 255, 0.08);
    --color-border-hover: rgba(255, 255, 255, 0.15);
    
    /* Typography */
    --font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    --font-size-xs: 0.75rem;
    --font-size-sm: 0.875rem;
    --font-size-base: 1rem;
    --font-size-lg: 1.125rem;
    --font-size-xl: 1.25rem;
    --font-size-2xl: 1.5rem;
    --font-size-3xl: 2rem;
    --font-size-4xl: 2.5rem;
    
    /* Spacing */
    --spacing-xs: 0.25rem;
    --spacing-sm: 0.5rem;
    --spacing-md: 1rem;
    --spacing-lg: 1.5rem;
    --spacing-xl: 2rem;
    --spacing-2xl: 3rem;
    
    /* Border Radius */
    --radius-sm: 0.375rem;
    --radius-md: 0.5rem;
    --radius-lg: 0.75rem;
    --radius-xl: 1rem;
    --radius-full: 9999px;
    
    /* Shadows */
    --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.3);
    --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.3);
    --shadow-lg: 0 10px 15px rgba(0, 0, 0, 0.3);
    --shadow-glow: 0 0 20px rgba(99, 102, 241, 0.3);
    
    /* Transitions */
    --transition-fast: 0.15s ease;
    --transition-base: 0.2s ease;
    --transition-slow: 0.3s ease;
}

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

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

body {
    font-family: var(--font-family);
    font-size: var(--font-size-base);
    line-height: 1.6;
    color: var(--color-text-primary);
    background: var(--color-bg-primary);
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

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

a:hover {
    color: var(--color-accent-secondary);
}

img {
    max-width: 100%;
    height: auto;
}

/* =====================================================
   NAVBAR
   ===================================================== */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    height: 64px;
    background: rgba(10, 10, 15, 0.85);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--color-border);
    z-index: 1000;
}

.nav-container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 var(--spacing-lg);
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.nav-logo {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    font-weight: 700;
    font-size: var(--font-size-xl);
    color: var(--color-text-primary);
}

.logo-icon {
    font-size: 1.5rem;
    background: var(--color-accent-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.nav-links {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
}

.nav-link {
    padding: var(--spacing-sm) var(--spacing-md);
    color: var(--color-text-secondary);
    font-weight: 500;
    border-radius: var(--radius-md);
    transition: all var(--transition-fast);
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
}

.nav-link:hover {
    color: var(--color-text-primary);
    background: var(--color-bg-hover);
}

.nav-user {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
}

.user-balance {
    color: var(--color-success);
    font-weight: 600;
    font-size: var(--font-size-sm);
    padding: var(--spacing-xs) var(--spacing-sm);
    background: rgba(34, 197, 94, 0.1);
    border-radius: var(--radius-full);
}

.user-name {
    color: var(--color-text-secondary);
    font-weight: 500;
}

/* =====================================================
   MAIN CONTENT
   ===================================================== */
.main-content {
    flex: 1;
    padding-top: 64px;
}

/* =====================================================
   BUTTONS
   ===================================================== */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-sm) var(--spacing-lg);
    font-family: var(--font-family);
    font-size: var(--font-size-sm);
    font-weight: 600;
    border-radius: var(--radius-md);
    border: none;
    cursor: pointer;
    transition: all var(--transition-fast);
    text-decoration: none;
}

.btn-primary {
    background: var(--color-accent-gradient);
    color: white;
    box-shadow: var(--shadow-sm);
}

.btn-primary:hover {
    transform: translateY(-1px);
    box-shadow: var(--shadow-glow);
    color: white;
}

.btn-secondary {
    background: var(--color-bg-tertiary);
    color: var(--color-text-primary);
    border: 1px solid var(--color-border);
}

.btn-secondary:hover {
    background: var(--color-bg-hover);
    border-color: var(--color-border-hover);
    color: var(--color-text-primary);
}

.btn-block {
    width: 100%;
}

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

.btn-small {
    padding: var(--spacing-xs) var(--spacing-sm);
    font-size: var(--font-size-xs);
}

.btn-logout {
    color: var(--color-text-muted);
}

/* =====================================================
   FORMS
   ===================================================== */
.form-group {
    margin-bottom: var(--spacing-lg);
}

.form-group label {
    display: block;
    margin-bottom: var(--spacing-sm);
    font-weight: 500;
    color: var(--color-text-secondary);
    font-size: var(--font-size-sm);
}

.form-control {
    width: 100%;
    padding: var(--spacing-md);
    font-family: var(--font-family);
    font-size: var(--font-size-base);
    color: var(--color-text-primary);
    background: var(--color-bg-primary);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    transition: all var(--transition-fast);
}

.form-control:focus {
    outline: none;
    border-color: var(--color-accent-primary);
    box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.2);
}

.form-control::placeholder {
    color: var(--color-text-muted);
}

textarea.form-control {
    resize: vertical;
    min-height: 100px;
}

.form-note {
    margin-top: var(--spacing-sm);
    font-size: var(--font-size-sm);
    color: var(--color-text-muted);
}

.required {
    color: var(--color-error);
}

/* =====================================================
   ALERTS
   ===================================================== */
.alert {
    padding: var(--spacing-md);
    border-radius: var(--radius-md);
    margin-bottom: var(--spacing-lg);
    font-size: var(--font-size-sm);
}

.alert-error {
    background: rgba(239, 68, 68, 0.1);
    border: 1px solid rgba(239, 68, 68, 0.3);
    color: #fca5a5;
}

.alert-success {
    background: rgba(34, 197, 94, 0.1);
    border: 1px solid rgba(34, 197, 94, 0.3);
    color: #86efac;
}

/* =====================================================
   AUTH PAGES
   ===================================================== */
.auth-container {
    min-height: calc(100vh - 64px);
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 0;
}

.auth-card {
    display: flex;
    flex-direction: column;
    justify-content: center;
    padding: var(--spacing-2xl);
    max-width: 480px;
    margin: 0 auto;
}

.auth-header {
    margin-bottom: var(--spacing-xl);
}

.auth-header h1 {
    font-size: var(--font-size-3xl);
    font-weight: 700;
    margin-bottom: var(--spacing-sm);
}

.auth-header p {
    color: var(--color-text-secondary);
}

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

.auth-footer {
    text-align: center;
    color: var(--color-text-secondary);
}

.auth-visual {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    background: var(--color-bg-secondary);
    padding: var(--spacing-2xl);
    text-align: center;
}

.auth-visual h2 {
    font-size: var(--font-size-2xl);
    margin-bottom: var(--spacing-md);
}

.auth-visual p {
    color: var(--color-text-secondary);
    max-width: 300px;
}

.grid-preview {
    width: 200px;
    height: 200px;
    background: var(--color-bg-tertiary);
    border-radius: var(--radius-lg);
    margin-bottom: var(--spacing-xl);
    overflow: hidden;
    position: relative;
}

.grid-animation {
    position: absolute;
    inset: 0;
    background: 
        linear-gradient(90deg, transparent 31px, var(--color-border) 31px, var(--color-border) 32px, transparent 32px),
        linear-gradient(0deg, transparent 31px, var(--color-border) 31px, var(--color-border) 32px, transparent 32px);
    background-size: 32px 32px;
    animation: gridPulse 3s ease-in-out infinite;
}

@keyframes gridPulse {
    0%, 100% { opacity: 0.3; }
    50% { opacity: 0.6; }
}

/* =====================================================
   GRID PAGE - MAP
   ===================================================== */
.grid-page {
    display: flex;
    height: calc(100vh - 64px);
    overflow: hidden;
}

.grid-container {
    flex: 1;
    position: relative;
    background: var(--color-bg-primary);
    overflow: hidden;
}

.grid-canvas {
    width: 100%;
    height: 100%;
}

.grid-canvas canvas {
    display: block;
}

/* Loading Overlay */
.loading-overlay {
    position: absolute;
    inset: 0;
    background: var(--color-bg-primary);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 100;
    transition: opacity var(--transition-slow);
}

.loading-overlay.hidden {
    opacity: 0;
    pointer-events: none;
}

.loader {
    text-align: center;
}

.loader-spinner {
    width: 48px;
    height: 48px;
    border: 3px solid var(--color-border);
    border-top-color: var(--color-accent-primary);
    border-radius: 50%;
    animation: spin 1s linear infinite;
    margin: 0 auto var(--spacing-md);
}

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

/* Grid Controls */
.grid-controls {
    position: absolute;
    bottom: var(--spacing-lg);
    left: var(--spacing-lg);
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xs);
    z-index: 50;
}

.control-btn {
    width: 40px;
    height: 40px;
    background: var(--color-bg-card);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    color: var(--color-text-primary);
    font-size: var(--font-size-xl);
    cursor: pointer;
    transition: all var(--transition-fast);
    display: flex;
    align-items: center;
    justify-content: center;
}

.control-btn:hover {
    background: var(--color-bg-hover);
    border-color: var(--color-accent-primary);
}

/* Coordinates Display */
.coords-display {
    position: absolute;
    bottom: var(--spacing-lg);
    left: 50%;
    transform: translateX(-50%);
    background: var(--color-bg-card);
    border: 1px solid var(--color-border);
    padding: var(--spacing-sm) var(--spacing-md);
    border-radius: var(--radius-full);
    font-size: var(--font-size-sm);
    font-family: monospace;
    color: var(--color-text-secondary);
    z-index: 50;
}

/* Minimap */
.minimap {
    position: absolute;
    bottom: var(--spacing-lg);
    right: var(--spacing-lg);
    width: 150px;
    height: 150px;
    background: var(--color-bg-card);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    overflow: hidden;
    z-index: 50;
}

.minimap canvas {
    width: 100%;
    height: 100%;
}

.minimap-viewport {
    position: absolute;
    border: 2px solid var(--color-accent-primary);
    pointer-events: none;
}

.minimap canvas {
    cursor: pointer;
}

.minimap.minimap-hidden {
    display: none;
}

/* Side Panel */
.side-panel {
    width: 360px;
    background: var(--color-bg-secondary);
    border-left: 1px solid var(--color-border);
    display: flex;
    flex-direction: column;
    overflow-y: auto;
}

.panel-header {
    padding: var(--spacing-lg);
    border-bottom: 1px solid var(--color-border);
}

.panel-header h2 {
    font-size: var(--font-size-xl);
    margin-bottom: var(--spacing-xs);
}

.panel-subtitle {
    color: var(--color-text-muted);
    font-size: var(--font-size-sm);
}

.panel-content {
    flex: 1;
    padding: var(--spacing-lg);
}

/* Empty State */
.empty-state {
    text-align: center;
    padding: var(--spacing-xl) 0;
}

.empty-icon {
    font-size: 3rem;
    margin-bottom: var(--spacing-md);
}

.empty-state h3 {
    margin-bottom: var(--spacing-sm);
}

.empty-state p {
    color: var(--color-text-secondary);
    margin-bottom: var(--spacing-xl);
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--spacing-md);
}

.stat-item {
    background: var(--color-bg-tertiary);
    padding: var(--spacing-md);
    border-radius: var(--radius-md);
}

.stat-number {
    display: block;
    font-size: var(--font-size-lg);
    font-weight: 700;
    color: var(--color-accent-primary);
}

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

/* Spot Details */
.spot-header {
    display: flex;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-md);
}

.spot-image {
    width: 64px;
    height: 64px;
    border-radius: var(--radius-md);
    image-rendering: pixelated;
    background: var(--color-bg-tertiary);
}

.spot-info h3 {
    font-size: var(--font-size-lg);
    margin-bottom: var(--spacing-xs);
}

.spot-owner {
    color: var(--color-text-secondary);
    font-size: var(--font-size-sm);
}

.spot-coords {
    background: var(--color-bg-tertiary);
    padding: var(--spacing-sm) var(--spacing-md);
    border-radius: var(--radius-md);
    font-size: var(--font-size-sm);
    font-family: monospace;
    margin-bottom: var(--spacing-md);
}

.spot-description {
    color: var(--color-text-secondary);
    margin-bottom: var(--spacing-md);
}

.spot-link {
    display: block;
    padding: var(--spacing-sm);
    background: var(--color-bg-tertiary);
    border-radius: var(--radius-md);
    text-align: center;
    margin-bottom: var(--spacing-md);
}

/* Available State */
.available-state {
    text-align: center;
    padding: var(--spacing-xl) 0;
}

.available-icon {
    font-size: 3rem;
    margin-bottom: var(--spacing-md);
}

.available-state h3 {
    color: var(--color-success);
    margin-bottom: var(--spacing-sm);
}

.available-price {
    font-size: var(--font-size-lg);
    margin-bottom: var(--spacing-lg);
}

.balance-note {
    margin-top: var(--spacing-md);
    font-size: var(--font-size-sm);
    color: var(--color-text-muted);
}

/* Comments */
.comments-section {
    margin-top: var(--spacing-lg);
    padding-top: var(--spacing-lg);
    border-top: 1px solid var(--color-border);
}

.comments-section h4 {
    margin-bottom: var(--spacing-md);
    font-size: var(--font-size-sm);
    color: var(--color-text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.comments-list {
    max-height: 200px;
    overflow-y: auto;
    margin-bottom: var(--spacing-md);
}

.comment {
    padding: var(--spacing-sm);
    background: var(--color-bg-tertiary);
    border-radius: var(--radius-md);
    margin-bottom: var(--spacing-sm);
}

.comment-header {
    display: flex;
    justify-content: space-between;
    margin-bottom: var(--spacing-xs);
}

.comment-author {
    font-weight: 600;
    font-size: var(--font-size-sm);
}

.comment-date {
    font-size: var(--font-size-xs);
    color: var(--color-text-muted);
}

.comment-body p {
    font-size: var(--font-size-sm);
    color: var(--color-text-secondary);
}

.comment-form {
    display: flex;
    gap: var(--spacing-sm);
}

.comment-form textarea {
    flex: 1;
    padding: var(--spacing-sm);
    font-size: var(--font-size-sm);
    resize: none;
}

.login-prompt {
    font-size: var(--font-size-sm);
    color: var(--color-text-muted);
    text-align: center;
}

/* =====================================================
   PURCHASE PAGE
   ===================================================== */
.purchase-page {
    max-width: 800px;
    margin: 0 auto;
    padding: var(--spacing-xl);
}

.purchase-header {
    margin-bottom: var(--spacing-xl);
}

.back-link {
    display: inline-block;
    margin-bottom: var(--spacing-md);
    color: var(--color-text-secondary);
}

.back-link:hover {
    color: var(--color-text-primary);
}

.purchase-header h1 {
    font-size: var(--font-size-3xl);
}

.purchase-info {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-xl);
}

.info-card {
    background: var(--color-bg-card);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    padding: var(--spacing-lg);
    text-align: center;
}

.info-card h3 {
    font-size: var(--font-size-sm);
    color: var(--color-text-secondary);
    margin-bottom: var(--spacing-sm);
}

.coords-large,
.price-large,
.balance-large {
    font-size: var(--font-size-xl);
    font-weight: 700;
}

.price-large {
    color: var(--color-success);
}

.balance-large.insufficient {
    color: var(--color-error);
}

.form-section {
    background: var(--color-bg-card);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    padding: var(--spacing-xl);
    margin-bottom: var(--spacing-lg);
}

.form-section h3 {
    margin-bottom: var(--spacing-md);
}

/* Upload Area */
.upload-area {
    position: relative;
    border: 2px dashed var(--color-border);
    border-radius: var(--radius-lg);
    padding: var(--spacing-xl);
    text-align: center;
    transition: all var(--transition-fast);
    cursor: pointer;
}

.upload-area:hover,
.upload-area.drag-over {
    border-color: var(--color-accent-primary);
    background: rgba(99, 102, 241, 0.05);
}

.file-input {
    position: absolute;
    inset: 0;
    opacity: 0;
    cursor: pointer;
}

.upload-icon {
    font-size: 2rem;
    margin-bottom: var(--spacing-sm);
}

.upload-formats {
    font-size: var(--font-size-xs);
    color: var(--color-text-muted);
}

.upload-preview {
    padding: var(--spacing-md);
}

.upload-preview img {
    max-width: 128px;
    max-height: 128px;
    image-rendering: pixelated;
    border-radius: var(--radius-md);
}

/* Purchase Summary */
.purchase-summary {
    background: var(--color-bg-card);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    padding: var(--spacing-lg);
    margin-bottom: var(--spacing-lg);
}

.summary-row {
    display: flex;
    justify-content: space-between;
    padding: var(--spacing-sm) 0;
    color: var(--color-text-secondary);
}

.summary-row.total {
    font-weight: 700;
    font-size: var(--font-size-lg);
    color: var(--color-text-primary);
    border-top: 1px solid var(--color-border);
    margin-top: var(--spacing-sm);
    padding-top: var(--spacing-md);
}

.summary-row.balance-after {
    color: var(--color-success);
}

/* Insufficient Balance */
.insufficient-balance {
    text-align: center;
    padding: var(--spacing-2xl);
    background: var(--color-bg-card);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
}

.warning-icon {
    font-size: 3rem;
    margin-bottom: var(--spacing-md);
}

.insufficient-balance h3 {
    color: var(--color-warning);
    margin-bottom: var(--spacing-md);
}

.demo-note {
    font-size: var(--font-size-sm);
    color: var(--color-text-muted);
    margin-top: var(--spacing-md);
}

/* =====================================================
   GRIDSPOT DETAIL PAGE
   ===================================================== */
.gridspot-page {
    max-width: 900px;
    margin: 0 auto;
    padding: var(--spacing-xl);
}

.gridspot-header {
    margin-bottom: var(--spacing-xl);
}

.gridspot-main {
    display: grid;
    grid-template-columns: auto 1fr;
    gap: var(--spacing-xl);
    margin-bottom: var(--spacing-xl);
}

.gridspot-image-large {
    background: var(--color-bg-card);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    padding: var(--spacing-md);
}

.gridspot-details h1 {
    font-size: var(--font-size-2xl);
    margin-bottom: var(--spacing-md);
}

.gridspot-meta {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-lg);
}

.meta-item {
    font-size: var(--font-size-sm);
    color: var(--color-text-secondary);
}

.meta-item strong {
    color: var(--color-text-primary);
}

.gridspot-description {
    background: var(--color-bg-card);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    padding: var(--spacing-md);
    margin-bottom: var(--spacing-lg);
}

.gridspot-comments {
    background: var(--color-bg-card);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    padding: var(--spacing-xl);
}

.gridspot-comments h2 {
    margin-bottom: var(--spacing-lg);
}

.comment-form-full {
    margin-bottom: var(--spacing-xl);
}

.comment-form-full textarea {
    margin-bottom: var(--spacing-md);
}

.login-prompt-box {
    background: var(--color-bg-tertiary);
    padding: var(--spacing-lg);
    border-radius: var(--radius-md);
    text-align: center;
    margin-bottom: var(--spacing-xl);
}

.comments-list-full {
    max-height: 500px;
    overflow-y: auto;
}

.no-comments {
    text-align: center;
    padding: var(--spacing-xl);
    color: var(--color-text-muted);
}

/* =====================================================
   FOOTER
   ===================================================== */
.footer {
    background: var(--color-bg-secondary);
    border-top: 1px solid var(--color-border);
    padding: var(--spacing-xl) var(--spacing-lg);
}

.footer-container {
    max-width: 1400px;
    margin: 0 auto;
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: var(--spacing-lg);
}

.footer-content {
    display: flex;
    align-items: center;
    gap: var(--spacing-lg);
}

.footer-brand {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    font-weight: 700;
}

.footer-tagline {
    color: var(--color-text-muted);
}

.footer-stats {
    display: flex;
    gap: var(--spacing-xl);
}

.footer-stats .stat {
    text-align: center;
}

.footer-stats .stat-value {
    display: block;
    font-weight: 700;
    color: var(--color-accent-primary);
}

.footer-stats .stat-label {
    font-size: var(--font-size-xs);
    color: var(--color-text-muted);
}

.footer-copy {
    font-size: var(--font-size-sm);
    color: var(--color-text-muted);
}

/* =====================================================
   RESPONSIVE
   ===================================================== */
@media (max-width: 1024px) {
    .grid-page {
        flex-direction: column;
    }
    
    .side-panel {
        width: 100%;
        max-height: 40vh;
        border-left: none;
        border-top: 1px solid var(--color-border);
    }
    
    .grid-container {
        min-height: 60vh;
    }
}

@media (max-width: 768px) {
    .auth-container {
        grid-template-columns: 1fr;
    }
    
    .auth-visual {
        display: none;
    }
    
    .purchase-info {
        grid-template-columns: 1fr;
    }
    
    .gridspot-main {
        grid-template-columns: 1fr;
    }
    
    .gridspot-image-large {
        text-align: center;
    }
    
    .footer-container {
        flex-direction: column;
        text-align: center;
    }
    
    .footer-content {
        flex-direction: column;
    }
}