/* Import Google Font */
@import url('https://fonts.googleapis.com/css2?family=Nunito:wght@400;700&display=swap');

:root {
    --bg-color: #FFF8E7;
    --primary-color: #58A4B0;
    --accent-color: #FFD166;
    --text-color: #4A4A4A;
    --white: #FFFFFF;
    --font-family: 'Nunito', sans-serif;
}

* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

body {
    font-family: var(--font-family);
    background-color: var(--bg-color);
    color: var(--text-color);
    padding: 1rem;
    -webkit-tap-highlight-color: transparent; /* Disable tap highlight on mobile */
}

/* --- Homepage Styles --- */
#homepage header h1 {
    font-size: 2.5rem;
    color: var(--primary-color);
    margin-bottom: 1rem;
    text-align: center;
}

#homepage section h2 {
    font-size: 1.5rem;
    color: var(--primary-color);
    margin-bottom: 1rem;
    padding-bottom: 0.5rem;
    border-bottom: 3px solid var(--accent-color);
    text-align: left;
}

.story-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr); /* 2 columns for mobile */
    gap: 1rem;
}

.story-card {
    background: var(--white);
    border-radius: 16px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.08);
    text-decoration: none;
    color: var(--text-color);
    overflow: hidden;
    position: relative;
    transition: transform 0.3s cubic-bezier(0.25, 0.8, 0.25, 1), box-shadow 0.3s cubic-bezier(0.25, 0.8, 0.25, 1);
    display: flex;
    flex-direction: column;
}

.story-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 20px rgba(0, 0, 0, 0.12);
}

.story-card .thumbnail-container {
    position: relative;
}

.story-card img {
    width: 100%;
    height: 120px;
    object-fit: cover;
    display: block;
}

.story-card.unread .new-badge {
    position: absolute;
    top: 10px;
    right: 10px;
    background-color: var(--accent-color);
    color: var(--text-color);
    width: 35px;
    height: 35px;
    border-radius: 50%;
    display: grid;
    place-items: center;
    font-weight: bold;
    font-size: 0.8rem;
    box-shadow: 0 2px 5px rgba(0,0,0,0.2);
}

.story-card h3 {
    padding: 0.75rem;
    margin: 0;
    font-size: 1rem;
    flex-grow: 1; /* Makes all cards equal height */
}

.progress-bar {
    height: 8px;
    background-color: #e0e0e0;
    width: 100%;
}

.progress-bar-inner {
    height: 100%;
    width: 0%; /* Updated by JS */
    background-color: var(--primary-color);
    transition: width 0.5s ease;
}

/* Media Query for larger screens */
@media (min-width: 768px) {
    .story-grid {
        grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
    }
}

/* --- Story Page Styles --- */
#storybook {
    display: flex;
    flex-direction: column;
    height: calc(100vh - 2rem); /* Full viewport height minus padding */
    max-width: 800px;
    margin: auto;
}

#page-container {
    flex-grow: 1;
    background: var(--white);
    border-radius: 20px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.08);
    padding: 1rem;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    position: relative;
    overflow: hidden;
}

/* Page Turn Animation */
.page-turn-next { animation: turnNext 0.5s cubic-bezier(0.455, 0.030, 0.515, 0.955) forwards; }
.page-turn-prev { animation: turnPrev 0.5s cubic-bezier(0.455, 0.030, 0.515, 0.955) forwards; }
@keyframes turnNext {
    from { transform: translateX(0); opacity: 1; }
    to { transform: translateX(-100%); opacity: 0; }
}
@keyframes turnPrev {
    from { transform: translateX(0); opacity: 1; }
    to { transform: translateX(100%); opacity: 0; }
}

#image-container img {
    max-width: 100%;
    max-height: 45vh;
    border-radius: 12px;
    margin-bottom: 1rem;
}

#text-container {
    font-size: 1.25rem;
    line-height: 1.7;
    max-height: 40vh;
    overflow-y: auto;
    text-align: center;
    padding: 0 1rem;
}

#controls {
    padding: 1rem 0;
    display: flex;
    justify-content: space-around;
    align-items: center;
    width: 100%;
}

.control-button {
    background-color: var(--primary-color);
    color: var(--white);
    border: none;
    width: 60px;
    height: 60px;
    border-radius: 50%;
    cursor: pointer;
    display: grid;
    place-items: center;
    box-shadow: 0 4px 10px rgba(0, 0, 0, 0.15);
    transition: background-color 0.2s, transform 0.1s;
}

.control-button:disabled {
    background-color: #ccc;
    cursor: not-allowed;
}

.control-button:active:not(:disabled) {
    transform: scale(0.95);
}

.control-button svg {
    width: 32px;
    height: 32px;
}

#page-indicator {
    font-size: 1.2rem;
    font-weight: bold;
    color: var(--primary-color);
}

/* --- Find and REPLACE these existing rules in your CSS file --- */

#read-mode-toggle {
    position: absolute;
    top: 20px; /* Increased from 1rem */
    right: 20px; /* Increased from 1rem */
    z-index: 10; /* This is the key fix */
    background: var(--accent-color);
    color: var(--text-color);
    padding: 0.5rem 1rem;
    border-radius: 20px;
    border: none;
    font-family: var(--font-family);
    font-weight: bold;
    cursor: pointer;
    box-shadow: 0 2px 5px rgba(0,0,0,0.1);
}

.home-button {
    position: absolute;
    top: 20px;  /* Increased from 1rem */
    left: 20px; /* Increased from 1rem */
    z-index: 10; /* This is the key fix */
    background: var(--primary-color);
    width: 44px;
    height: 44px;
    border-radius: 50%;
    display: grid;
    place-items: center;
    text-decoration: none;
    color: white;
    box-shadow: 0 2px 5px rgba(0,0,0,0.1);
}
.home-button svg {
    width: 24px;
    height: 24px;
}


/* --- Game Styles --- */
#game-container {
    width: 100%;
    height: 100%;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    padding: 1rem;
}

.game-description {
    font-size: 1.2em;
    margin-bottom: 20px;
    text-align: center;
}

.skip-game-btn {
    margin-top: 20px;
    background-color: var(--primary-color);
    color: white;
    border: none;
    padding: 10px 25px;
    border-radius: 25px;
    cursor: pointer;
    font-family: var(--font-family);
    font-size: 1em;
    font-weight: bold;
}

/* Memory Game Specific */
.memory-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(60px, 1fr));
    gap: 10px;
    width: 100%;
    max-width: 320px; /* Limit max width on larger screens */
}

.memory-card {
    width: 100%;
    aspect-ratio: 1 / 1; /* Perfect square */
    background-color: transparent;
    cursor: pointer;
    perspective: 1000px;
}

.memory-card-inner {
    position: relative;
    width: 100%;
    height: 100%;
    transition: transform 0.6s;
    transform-style: preserve-3d;
}

.memory-card.flip .memory-card-inner {
    transform: rotateY(180deg);
}

.memory-card .front-face,
.memory-card .back-face {
    position: absolute;
    width: 100%;
    height: 100%;
    -webkit-backface-visibility: hidden;
    backface-visibility: hidden;
    border-radius: 12px;
    display: grid;
    place-items: center;
    box-shadow: 0 4px 8px rgba(0,0,0,0.1);
}

.memory-card .back-face {
    background: var(--accent-color);
    font-size: 2rem;
    color: var(--white);
}

.memory-card .front-face {
    background: var(--white);
    transform: rotateY(180deg);
}

.memory-card .front-face img {
    width: 80%;
    height: 80%;
    object-fit: contain;
}


/* --- CSS For Mobile-Friendly Games --- */

/* Style for a selected item in the sorting game */
.item-to-sort.selected {
    transform: scale(1.15);
    box-shadow: 0 0 15px var(--accent-color);
    border-radius: 50%;
    background: #fff;
}

/* A little "shake" animation for wrong answers */
@keyframes shake-error {
  0%, 100% { transform: translateX(0); }
  25% { transform: translateX(-5px); }
  75% { transform: translateX(5px); }
}

.shake-error {
    animation: shake-error 0.3s ease-in-out;
}