/**
 * @license
 * SPDX-License-Identifier: Apache-2.0
*/

@font-face {
  font-family: 'Veteran Typewriter';
  src: url('fonts/veteran_typewriter.ttf') format('truetype');
  font-weight: normal;
  font-style: normal;
  font-display: swap;
}

:root {
  --bg-color: rgb(50, 143, 120);
  --page-front-bg: #ffffff; /* white */
  --page-back-bg: #f9f9f9;
  --text-color: #333;
  --heading-color: #000;
  --page-number-color: #666;
  --restart-button-bg: #007bff;
  --restart-button-hover-bg: #0056b3;
  --restart-button-color: #ffffff;
  --shadow-color: rgba(0, 0, 0, 0.15);
  --select-bg: #ffffff;
  --select-text: #333;
  --select-border: #ccc;
  --controls-bg: rgba(255, 255, 255, 0.7);
  --controls-text: #000;
  --button-bg: #f0f0f0;
  --button-hover-bg: #e0e0e0;
  --button-text: #000;
}

body, html {
  margin: 0;
  padding: 0;
  width: 100%;
  height: 100%;
  overflow: hidden; /* Kaydırma çubuklarını engeller */
}

body {
  display: flex;
  justify-content: center;
  align-items: center;
  color: var(--text-color);
  font-family: sans-serif;
  perspective: 1500px; /* 3D efekti için perspektif ekler */
  transition: color 0.3s ease-in-out;
  box-sizing: border-box;
}

body.i18n-loading #a4-page,
body.i18n-loading #top-right-controls,
body.i18n-loading #settings_container {
  visibility: hidden;
  opacity: 0;
}

#orientation-lock {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  background-color: var(--page-front-bg);
  z-index: 10000;
  display: none; /* Hidden by default */
  flex-direction: column;
  justify-content: center;
  align-items: center;
  text-align: center;
  color: var(--text-color);
  font-size: 1.2em;
}

body.needs-portrait #orientation-lock {
    display: flex;
}

.orientation-icon {
    width: 50px;
    height: 80px;
    border: 3px solid var(--text-color);
    border-radius: 10px;
    margin-bottom: 20px;
    animation: rotate-animation 2s infinite ease-in-out;
}

@keyframes rotate-animation {
    0% { transform: rotate(0deg); }
    50% { transform: rotate(-90deg); }
    100% { transform: rotate(-90deg); }
}

.bg-container {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: -1;
  background-color: var(--bg-color);
  transition: background-color 0.3s ease-in-out, background-image 0.3s ease-in-out;
  cursor: pointer;
  background-size: cover;
  background-position: center;
  background-repeat: no-repeat;
  overflow: hidden; /* Ensures video doesn't spill out */
}

.bg-container > video,
.bg-container > iframe {
  position: absolute;
  top: 50%;
  left: 50%;
  width: 100vw;
  height: 100vh;
  transform: translate(-50%, -50%);
  object-fit: cover;
  z-index: -2;
  pointer-events: none;
}

#top-right-controls {
  position: fixed;
  top: 15px;
  right: 15px;
  z-index: 250;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 10px;
}

/* Unified style for all control buttons */
#top-right-controls button {
  width: 44px;
  height: 44px;
  padding: 0;
  border-radius: 50%;
  border: 1px solid var(--select-border);
  cursor: pointer;
  background-color: var(--button-bg);
  color: var(--button-text);
  display: flex;
  justify-content: center;
  align-items: center;
  transition: background-color 0.2s, transform 0.2s, box-shadow 0.2s;
  box-shadow: 0 2px 4px rgba(0,0,0,0.1);
}

#top-right-controls button:hover {
  background-color: var(--button-hover-bg);
  transform: translateY(-2px);
  box-shadow: 0 4px 8px rgba(0,0,0,0.15);
}

#top-right-controls button svg {
  width: 24px;
  height: 24px;
  fill: var(--button-text);
}

.language-switcher-container {
  position: relative; /* For positioning the select box */
  width: 44px;
  height: 44px;
  display: flex;
  align-items: center;
  justify-content: center;
  background-color: var(--button-bg);
  border: 1px solid var(--select-border);
  border-radius: 50%; /* Make it a circle */
  box-shadow: 0 2px 4px rgba(0,0,0,0.1);
  transition: background-color 0.2s, box-shadow 0.2s, transform 0.2s;
  cursor: pointer;
}
.language-switcher-container:hover {
    background-color: var(--button-hover-bg);
    transform: translateY(-2px); /* Add hover effect matching buttons */
    box-shadow: 0 4px 8px rgba(0,0,0,0.15);
}

.language-switcher-container svg {
  width: 24px; /* Match icon size in buttons */
  height: 24px;
  fill: var(--button-text);
  margin-right: 0; /* Remove margin */
  pointer-events: none; /* Clicks should go through to the select */
}

#language-switcher {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  opacity: 0; /* Hide it, but keep it functional */
  cursor: pointer;
  -webkit-appearance: none;
  -moz-appearance: none;
  appearance: none;
  background-color: transparent;
  border: none;
}


#language-switcher:focus {
  outline: none;
}


#settings_container {
  position: fixed;
  top: 0;
  left: 0;
  width: 250px;
  height: 100vh;
  background-color: #808080; /* medium gray */
  outline: 1px solid black;
  z-index: 40;
  padding: 20px;
  box-sizing: border-box;
  color: white;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  opacity: 0;
  visibility: hidden;
  transform: translateX(-100%);
  transition: opacity 0.3s ease-in-out, visibility 0.3s ease-in-out, transform 0.3s ease-in-out;
}

#settings_container.visible {
  opacity: 1;
  visibility: visible;
  transform: translateX(0);
}

#settings_container h3 {
  margin-top: 0;
  padding-bottom: 10px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.3);
  margin-bottom: 20px;
}

.controls-container, .settings-group {
  display: flex;
  flex-direction: column;
  gap: 8px;
  margin-bottom: 20px;
}

.settings-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 10px;
}


.color-picker-group {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 15px;
}

.color-picker-group label, .settings-row label {
  font-weight: bold;
}

input[type="color"] {
  width: 50px;
  height: 30px;
  border: 1px solid var(--select-border);
  cursor: pointer;
}

.settings-group select, .settings-group input, .settings-row select, .settings-row input {
  padding: 4px;
  border-radius: 4px;
  border: 1px solid var(--select-border);
  background-color: var(--select-bg);
  color: var(--select-text);
  transition: background-color 0.3s ease-in-out, color 0.3s ease-in-out, border-color 0.3s ease-in-out;
}

.settings-actions {
  display: flex;
  justify-content: flex-end;
  gap: 10px;
  margin-top: 20px;
  padding-top: 20px;
  border-top: 1px solid rgba(255, 255, 255, 0.3);
}

.settings-actions button {
  padding: 8px 16px;
  border-radius: 4px;
  border: 1px solid var(--select-border);
  cursor: pointer;
  background-color: var(--button-bg);
  color: var(--button-text);
  font-weight: bold;
  transition: background-color 0.2s;
}

.settings-actions button:hover {
  background-color: var(--button-hover-bg);
}

#zoom-container {
  position: relative;
  /* The size of this container is fixed, and its transform will be scaled */
  width: 420px; /* A4 Ratio at a lower base resolution */
  height: 594px;
  display: flex;
  justify-content: center;
  align-items: center;
  transition: transform 0.3s ease-out;
}

#a4-page {
  position: absolute; /* İç öğelerin mutlak konumlandırılması için */
  width: 100%;
  height: 100%;
  transform-style: preserve-3d; /* 3D dönüşümü etkinleştirir */
  background-color: transparent; /* Arka planı kaldır, yüzler kendi arka planını kullanacak */
  box-shadow: 0 20px 50px var(--shadow-color);
  cursor: pointer; /* Sayfaya tıklamanın ayarları açacağını belirtir */
  transition: transform 0.8s ease-in-out, box-shadow 0.3s ease-in-out;
}

#a4-page.page-selected {
  /* Selection outline is now handled by pseudo-elements */
}

#a4-page.is-flipping {
  /* Döndürme animasyonu sırasında gölgeyi kaldırarak daha temiz bir görünüm sağlar */
  box-shadow: none;
}

.page-face {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  backface-visibility: hidden; /* Döndüğünde arka yüzü gizler */
  padding: 0; /* Padding is now controlled by content-wrapper */
  box-sizing: border-box;
  background-color: var(--page-front-bg); /* Default page color from theme */
  transition: background-color 0.3s ease-in-out, color 0.3s ease-in-out;
}

.content-wrapper {
  width: 100%;
  height: 100%;
  overflow: auto;
  display: flex;
  flex-direction: column;
  padding: 20px;
  gap: 20px;
  box-sizing: border-box;
}

.page-container {
    flex-grow: 1;
    flex-basis: 0;
    min-height: 0;
    display: flex;
    padding: 10px;
    box-sizing: border-box;
    gap: 10px;
    cursor: pointer;
    position: relative;
    transition: background-color 0.3s ease, border-color 0.3s ease;
}

.page-column {
    flex-grow: 1;
    flex-basis: 0;
    min-width: 0;
    display: flex;
    flex-direction: column;
    position: relative;
    cursor: pointer;
}

.page-element {
    width: 100%;
    height: 100%;
    min-height: 50px;
    display: flex;
    flex-direction: column;
    position: relative; /* For selection outline */
}

.page-element-rich-text {
    width: 100%;
    flex-grow: 1;
    box-sizing: border-box;
    outline: none;
    border: 1px dashed #ccc;
    padding: 3px;
    overflow-y: auto;
    overflow-wrap: break-word;
}

.page-element-rich-text.text-color-dynamic {
    mix-blend-mode: difference;
    color: white; /* Base color for the blend mode calculation */
}

.page-element-rich-text > *:first-child {
    margin-top: 0;
}

/* Force font on editor and all its children to override inline styles from pasted content */
.page-element-rich-text {
    font-size: 12px; /* Set base font size for paragraphs */
}

.page-element-rich-text * {
    font-family: "Veteran Typewriter", sans-serif !important;
}

/* FIX: Remove explicit bolding from headers to allow the override below to work reliably */
.page-element-rich-text h1 {
    font-size: 2em;
}
.page-element-rich-text h2 {
    font-size: 1.5em;
}
.page-element-rich-text h3 {
    font-size: 1.17em;
}

/* FIX: Force normal weight and style for elements that are typically bold or italic.
   This ensures the single-style "Veteran Typewriter" font is always used. */
.page-element-rich-text h1,
.page-element-rich-text h2,
.page-element-rich-text h3,
.page-element-rich-text b,
.page-element-rich-text strong,
.page-element-rich-text i,
.page-element-rich-text em {
    font-weight: normal;
    font-style: normal;
}

.page-element-rich-text p {
    font-size: inherit; /* Inherit font size from parent, fixes H1 styling bug. */
}
.page-element-rich-text sub, 
.page-element-rich-text sup {
    font-size: 75%;
}

.page-element-rich-text .text-raised {
    text-shadow: 0.5px 0.5px 1px rgba(0, 0, 0, 0.5);
}

.page-element-rich-text a {
    background-color: rgba(255, 255, 0, 0.3);
    outline: 1px solid rgba(0, 110, 255, 0.5);
    padding: 1px 3px;
    border-radius: 3px;
    text-decoration: none;
    color: inherit;
}

.image-element-wrapper,
.empty-element-wrapper {
    position: relative;
    width: 100%;
    height: 100%;
    display: flex;
    justify-content: center;
    align-items: center;
    border: 1px dashed #ccc;
    box-sizing: border-box;
    color: #999;
    background-color: #f9f9f9;
}

.image-element-wrapper.empty img {
    display: none;
}

.image-element-wrapper img {
    max-width: 100%;
    max-height: 100%;
    object-fit: contain;
}

.image-link-button {
  position: absolute;
  bottom: 8px;
  right: 8px;
  background-color: rgba(255, 255, 255, 0.85);
  color: #333;
  padding: 4px 12px;
  border-radius: 16px;
  font-size: 13px;
  font-weight: bold;
  pointer-events: none;
  box-shadow: 0 1px 3px rgba(0,0,0,0.1);
  z-index: 2;
}

.image-link-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 1;
}

.video-element-wrapper {
    width: 100%;
    height: 100%;
    display: flex;
    justify-content: center;
    align-items: center;
    border: 1px dashed #ccc;
    box-sizing: border-box;
    color: #999;
    background-color: #f9f9f9;
    position: relative;
}

.video-element-wrapper.empty {
    /* Styles are inherited from the base class */
}

.video-element-wrapper iframe,
.video-element-wrapper video {
    width: 100%;
    height: 100%;
    border: none;
    object-fit: contain; /* For <video> element */
}

.video-placeholder {
    text-align: center;
    padding: 10px;
    line-height: 1.5;
}

.video-placeholder a {
    color: #007bff;
    text-decoration: underline;
}

.video-edit-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 1; /* Sit on top of the iframe */
}


.rich-text-toolbar {
    display: flex;
    flex-wrap: wrap;
    gap: 15px;
    margin-top: 10px;
}

.toolbar-group-container {
    display: flex;
    flex-direction: column;
    gap: 5px;
    position: relative; /* For emoji panel positioning */
}

.toolbar-group-title {
    font-size: 0.8em;
    font-weight: bold;
    color: #f0f0f0;
}

.toolbar-group {
    display: flex;
    flex-direction: column; /* Allow rows to stack */
    background-color: #666;
    border-radius: 4px;
    padding: 2px;
    gap: 2px; /* Space between rows */
}

.toolbar-group-row {
    display: flex;
    gap: 2px; /* Space between buttons in a row */
}

.toolbar-button, .toolbar-select {
    background: #444;
    color: white;
    border: 1px solid #777;
    min-width: 30px;
    height: 30px;
    cursor: pointer;
    transition: background-color 0.2s;
}

.toolbar-button:hover, .toolbar-select:hover {
    background-color: #555;
}

.toolbar-button.active {
    background-color: #777;
    border-color: #999;
    box-shadow: inset 0 1px 3px rgba(0,0,0,0.2);
}

.toolbar-button s {
    text-decoration: none;
    position: relative;
    display: inline-block;
}

.toolbar-button s::after {
    content: '';
    position: absolute;
    left: 0;
    right: 0;
    top: 50%;
    border-top: 1.5px solid currentColor;
}

.raised-text-button b {
    font-weight: bold;
    text-shadow: 0.5px 0.5px 1px rgba(255, 255, 255, 0.7);
}

.toolbar-color-button {
  -webkit-appearance: none;
  -moz-appearance: none;
  appearance: none;
  padding: 2px;
  background-color: transparent;
  border: 1px solid #777;
  box-sizing: border-box;
}
.toolbar-color-button::-webkit-color-swatch-wrapper {
  padding: 0;
}
.toolbar-color-button::-webkit-color-swatch {
  border: none;
  border-radius: 2px;
}
.toolbar-color-button::-moz-color-swatch {
  border: none;
  border-radius: 2px;
}

.emoji-picker-panel {
    position: absolute;
    top: 100%;
    left: 0;
    background-color: #555;
    border: 1px solid #777;
    border-radius: 4px;
    padding: 5px;
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 5px;
    z-index: 10;
    margin-top: 5px;
    box-shadow: 0 4px 8px rgba(0,0,0,0.2);
}

.emoji-item {
    cursor: pointer;
    padding: 5px;
    border-radius: 4px;
    text-align: center;
    transition: background-color 0.2s;
}

.emoji-item:hover {
    background-color: #666;
}

.link-input-panel {
    position: absolute;
    top: 100%;
    left: 0;
    background-color: #555;
    border: 1px solid #777;
    border-radius: 4px;
    padding: 5px;
    display: flex;
    align-items: center;
    gap: 5px;
    z-index: 10;
    margin-top: 5px;
    box-shadow: 0 4px 8px rgba(0,0,0,0.2);
}

.link-input-panel input {
    background-color: #333;
    color: white;
    border: 1px solid #777;
    border-radius: 3px;
    padding: 4px;
    outline: none;
    width: 150px;
}

.link-input-panel button {
    background: #444;
    color: white;
    border: 1px solid #777;
    width: 30px;
    height: 30px;
    cursor: pointer;
    border-radius: 4px;
    transition: background-color 0.2s;
    flex-shrink: 0;
}

.link-input-panel button:hover {
    background-color: #666;
}


/* Inner magenta border */
.selected::after,
#a4-page.page-selected::after {
  content: '';
  position: absolute;
  top: -1px;
  left: -1px;
  right: -1px;
  bottom: -1px;
  border: 1px dashed magenta;
  pointer-events: none;
  z-index: 1;
}

/* Outer yellow border */
.selected::before,
#a4-page.page-selected::before {
  content: '';
  position: absolute;
  top: -2px;
  left: -2px;
  right: -2px;
  bottom: -2px;
  border: 1px dashed yellow;
  pointer-events: none;
  z-index: 1;
}

.page-front {
  /* background-color is inherited or set by JS */
}

.page-back {
  background-color: var(--page-back-bg); /* Arka yüz için hafif farklı bir renk */
  transform: rotateY(180deg); /* Arka yüzü başlangıçta ters çevirir */
  color: var(--text-color);
}

.page-face h2 {
  color: var(--heading-color);
}

.page-back h2 {
  margin-top: 0;
  margin-bottom: 16px;
}

.page-number {
  position: absolute;
  bottom: 10px;
  left: 50%;
  transform: translateX(-50%);
  font-size: 14px;
  color: var(--page-number-color);
  pointer-events: none;
  background-color: rgba(255, 255, 255, 0.7);
  border-radius: 50%;
  width: 28px;
  height: 28px;
  display: flex;
  justify-content: center;
  align-items: center;
  box-shadow: 0 1px 2px rgba(0,0,0,0.1);
}

#restart-button {
  position: absolute;
  bottom: 10px;
  right: 10px;
  width: 40px;
  height: 40px;
  background-color: var(--restart-button-bg);
  color: var(--restart-button-color);
  border-radius: 50%;
  display: none; /* Varsayılan olarak gizli */
  justify-content: center;
  align-items: center;
  font-size: 24px;
  cursor: pointer;
  box-shadow: 0 2px 5px var(--shadow-color);
  transition: background-color 0.2s, transform 0.2s, opacity 0.3s, color 0.3s ease-in-out;
  z-index: 10; /* Sayfa yüzlerinin üzerinde olmasını sağlar */
  opacity: 0;
}

#restart-button:hover {
  background-color: var(--restart-button-hover-bg);
  transform: scale(1.1);
}

/* Save Confirmation Pop-up */
#save-confirm-popup, #unsaved-changes-popup, #load-file-popup, #post-instructions-popup {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-color: rgba(0, 0, 0, 0.6);
  z-index: 100;
  display: flex;
  justify-content: center;
  align-items: center;
}

.popup-content {
  background-color: var(--select-bg);
  color: var(--select-text);
  padding: 20px 40px;
  border-radius: 8px;
  text-align: center;
  box-shadow: 0 5px 15px rgba(0, 0, 0, 0.3);
}

.popup-actions {
  margin-top: 20px;
  display: flex;
  gap: 15px;
}

.popup-actions button {
  padding: 10px 20px;
  border: none;
  border-radius: 5px;
  cursor: pointer;
  font-weight: bold;
}

#confirm-save-btn {
  background-color: #28a745;
  color: white;
}

#cancel-save-btn {
  background-color: #dc3545;
  color: white;
}

#unsaved-confirm-save-btn {
  background-color: #28a745; /* green */
  color: white;
}

#unsaved-discard-btn {
  background-color: #dc3545; /* red */
  color: white;
}

#unsaved-cancel-btn, #cancel-load-btn {
  background-color: #6c757d; /* gray */
  color: white;
}

#load-new-file-btn {
  background-color: #007bff; /* blue */
  color: white;
}

#load-template-btn {
  background-color: #17a2b8; /* info blue */
  color: white;
}

#post-popup-close-btn {
    background-color: #007bff;
    color: white;
}

.popup-content a {
    color: #007bff;
    text-decoration: underline;
}


.hidden {
  display: none !important;
}

/* --- PREVIEW MODE STYLES --- */

#global-preview-btn .icon-edit {
    display: none;
}

body.preview-mode-active #global-preview-btn .icon-preview {
    display: none;
}

body.preview-mode-active #global-preview-btn .icon-edit {
    display: block;
}

/* In preview mode, only show the edit/preview toggle button */
body.preview-mode-active #global-load-btn,
body.preview-mode-active #global-save-btn,
body.preview-mode-active #global-discard-btn,
body.preview-mode-active #global-post-btn,
body.preview-mode-active #open-settings-btn,
body.preview-mode-active .language-switcher-container {
    display: none;
}

body.preview-mode-active .page-element-rich-text {
    border-color: transparent;
}

body.preview-mode-active .page-container,
body.preview-mode-active .page-column,
body.preview-mode-active .page-element,
body.preview-mode-active .page-element-rich-text,
body.preview-mode-active .image-element-wrapper,
body.preview-mode-active .empty-element-wrapper {
    cursor: default;
}

body.preview-mode-active .selected::after,
body.preview-mode-active #a4-page.page-selected::after,
body.preview-mode-active .selected::before,
body.preview-mode-active #a4-page.page-selected::before {
    display: none;
}

body.preview-mode-active.preview-mode-horizontal #a4-page {
  visibility: hidden;
}

/* For vertical preview mode on tall screens, ensure the editor page is visible */
body.preview-mode-active.preview-mode-vertical #a4-page {
    visibility: visible;
}


#preview-book-container {
  position: absolute;
  width: 200%;
  height: 100%;
  display: flex;
  justify-content: center;
  align-items: center;
  z-index: 200;
  perspective: 2500px;
}

#preview-book {
  width: 100%;
  height: 100%;
  position: relative;
  transform-style: preserve-3d;
  transition: transform 0.8s ease-in-out;
}

.preview-sheet {
  position: absolute;
  top: 0;
  right: 0;
  width: 50%;
  height: 100%;
  transform-origin: left center;
  transition: transform 0.8s ease-in-out;
  transform-style: preserve-3d;
}

.preview-sheet.flipped {
  transform: rotateY(-180deg);
}

.preview-page-face {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  backface-visibility: hidden;
  background-color: var(--page-front-bg);
  overflow: hidden;
  box-shadow: 0 5px 20px var(--shadow-color);
  border-radius: 4px;
  transition: background-color 0.3s ease-in-out;
}

.preview-page-face.back {
  transform: rotateY(180deg);
}

#page-prev-btn, #page-next-btn {
  position: fixed;
  z-index: 210;
  background-color: rgba(0, 0, 0, 0.3);
  color: white;
  border: none;
  font-size: 2.5em;
  padding-bottom: 5px;
  cursor: pointer;
  opacity: 0.7;
  transition: opacity 0.2s, background-color 0.2s, top 0.3s ease, bottom 0.3s ease, transform 0.3s ease;
  border-radius: 50%;
  width: 50px;
  height: 50px;
  display: flex;
  justify-content: center;
  align-items: center;
  line-height: 0;
  box-shadow: 0 2px 5px rgba(0,0,0,0.2);
}

/* In EDIT mode, move buttons to the bottom corners */
body:not(.preview-mode-active) #page-prev-btn,
body:not(.preview-mode-active) #page-next-btn {
  top: auto;
  bottom: 20px;
  transform: none;
}

/* In PREVIEW mode, move buttons to the vertical center */
body.preview-mode-active #page-prev-btn,
body.preview-mode-active #page-next-btn {
  top: 50%;
  bottom: auto;
  transform: translateY(-50%);
}


#page-prev-btn:hover, #page-next-btn:hover {
  background-color: rgba(0, 0, 0, 0.5);
  opacity: 1;
}

#page-prev-btn {
  left: 15px;
}

#page-next-btn {
  right: 15px;
}

#page-prev-btn:disabled, #page-next-btn:disabled {
  opacity: 0.2;
  cursor: not-allowed;
  background-color: rgba(0, 0, 0, 0.3);
}

#preview-restart-button {
  position: absolute;
  bottom: 10px;
  right: 10px;
  width: 40px;
  height: 40px;
  background-color: var(--restart-button-bg);
  color: var(--restart-button-color);
  border-radius: 50%;
  display: none; /* Controlled by JS */
  justify-content: center;
  align-items: center;
  font-size: 24px;
  cursor: pointer;
  box-shadow: 0 2px 5px var(--shadow-color);
  transition: background-color 0.2s, transform 0.2s, opacity 0.3s, color 0.3s ease-in-out;
  z-index: 101;
  opacity: 0;
}

#preview-restart-button:hover {
  background-color: var(--restart-button-hover-bg);
  transform: scale(1.1);
}

/* --- MOBILE VIEW STYLES --- */
body.mobile-view #top-right-controls {
    top: 10px;
    right: 10px;
    gap: 8px;
}
body.mobile-view #top-right-controls button,
body.mobile-view .language-switcher-container {
    width: 40px;
    height: 40px;
}

body.mobile-view #top-right-controls button svg,
body.mobile-view .language-switcher-container svg {
    width: 20px;
    height: 20px;
}

/* This rule will correctly apply in both edit and preview mode on mobile */
body.mobile-view #page-prev-btn,
body.mobile-view #page-next-btn {
    width: 45px;
    height: 45px;
    font-size: 2em;
}

/* Edit mode on mobile should have them at the bottom */
body.mobile-view:not(.preview-mode-active) #page-prev-btn,
body.mobile-view:not(.preview-mode-active) #page-next-btn {
    bottom: 20px;
    top: auto;
    transform: none;
}

body.mobile-view #page-prev-btn {
    left: 10px;
}

body.mobile-view #page-next-btn {
    right: 10px;
}

/* --- FADE ANIMATIONS --- */
@keyframes fadeIn {
  from { opacity: 0; }
  to { opacity: 1; }
}

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

.fade-in {
  animation: fadeIn 0.5s ease-in-out forwards;
}

.fade-out {
  animation: fadeOut 0.5s ease-in-out forwards;
}

.initially-hidden {
  opacity: 0;
}