/*
 * Text Game Style Sheet
 * Version: 2.3 - Nâng cấp giao diện thanh tìm kiếm và bộ lọc
 */

/* --- BIẾN TOÀN CỤC VÀ FONT --- */
@import url('https://fonts.googleapis.com/css2?family=Roboto:wght@400;700&display=swap');

:root {
    --primary-color: #00ff99; /* Xanh Neon */
    --primary-color-darker: #00e68a;
    --secondary-color: #9933ff; /* Tím Neon */
    --secondary-color-darker: #8a2be2;
    --dark-bg: #121212;
    --dark-surface: #1e1e1e;
    --dark-text-primary: #e0e0e0;
    --dark-text-secondary: #a0a0a0;
    --dark-border: #333333;
    --dark-link-color: var(--primary-color);
    --font-family: 'Roboto', sans-serif;
    --border-radius: 12px;
    --shadow-sm: 0 2px 4px rgba(0,0,0,0.2);
    --transition-speed: 0.3s;
}

/* --- THIẾT LẬP CƠ BẢN --- */
* { box-sizing: border-box; margin: 0; padding: 0; }
body {
    font-family: var(--font-family);
    line-height: 1.7;
    background-color: var(--dark-bg);
    color: var(--dark-text-primary);
}

/* --- CẤU TRÚC CHUNG & HEADER --- */
.game-wrapper { max-width: 1200px; margin: 0 auto; padding: 0 15px; }
.game-header { display: flex; justify-content: space-between; align-items: center; padding: 20px 0; border-bottom: 1px solid var(--dark-border); }
.game-logo { font-size: 1.5em; font-weight: 700; text-decoration: none; color: var(--dark-link-color); }
.game-nav a { margin-left: 25px; font-weight: 700; font-size: 1.1em; }

/* --- LINK TƯƠNG PHẢN CAO --- */
a { color: var(--dark-link-color); text-decoration: none; transition: color var(--transition-speed), text-shadow var(--transition-speed); }
a:hover { color: #fff; text-shadow: 0 0 5px var(--dark-link-color); text-decoration: none; }
.back-link { display: inline-block; margin-top: 30px; font-weight: bold; }

/* --- TRANG CHỦ & TIÊU ĐỀ --- */
.game-container { padding: 40px 0; }
.page-title { font-size: 2.5em; text-align: center; margin-bottom: 40px; color: var(--primary-color); text-shadow: 0 0 10px rgba(0, 255, 153, 0.5); }
.main-screen { text-align: center; max-width: 600px; margin: 40px auto; }

/* * --- THANH TÌM KIẾM & BỘ LỌC HIỆN ĐẠI --- 
 * Phiên bản nâng cấp: Cải thiện khoảng cách, hiệu ứng focus và thêm transition.
 */
.filter-toolbar {
    display: flex;
    flex-wrap: wrap;
    gap: 15px;
    align-items: center;
    padding: 20px; /* Tăng padding để thoáng hơn */
    background-color: var(--dark-surface);
    border-radius: var(--border-radius);
    margin-bottom: 40px;
    border: 1px solid var(--dark-border);
    transition: box-shadow var(--transition-speed);
}
.filter-toolbar:focus-within { /* Thêm hiệu ứng viền sáng khi người dùng tương tác với form */
    box-shadow: 0 0 15px rgba(0, 255, 153, 0.2);
    border-color: var(--primary-color);
}
.search-input-wrapper {
    position: relative;
    flex-grow: 1; /* Cho phép ô tìm kiếm co giãn linh hoạt */
    min-width: 250px; /* Đảm bảo ô tìm kiếm không quá nhỏ */
}
.search-icon {
    position: absolute;
    top: 50%;
    left: 15px;
    transform: translateY(-50%);
    color: var(--dark-text-secondary);
    pointer-events: none;
    transition: color var(--transition-speed);
}
.search-input-wrapper:focus-within .search-icon {
    color: var(--primary-color); /* Đổi màu icon khi focus */
}
.search-input, .folder-select {
    font-family: var(--font-family);
    font-size: 1em;
    padding: 12px 15px;
    border-radius: 8px;
    border: 1px solid var(--dark-border);
    background-color: var(--dark-bg);
    color: var(--dark-text-primary);
    transition: all var(--transition-speed);
    width: 100%;
}
.search-input {
    padding-left: 45px; /* Tạo không gian cho icon */
}
.search-input:focus, .folder-select:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 10px rgba(0, 255, 153, 0.3);
}
.folder-select-wrapper {
    position: relative;
    min-width: 220px;
}
.folder-select {
    appearance: none;
    -webkit-appearance: none;
    -moz-appearance: none;
    cursor: pointer;
    padding-right: 40px;
}
.folder-select-wrapper::after {
    content: '▼';
    position: absolute;
    top: 50%;
    right: 15px;
    transform: translateY(-50%);
    color: var(--dark-text-secondary);
    pointer-events: none;
    font-size: 0.8em;
    transition: transform var(--transition-speed);
}
.folder-select-wrapper:hover::after {
    transform: translateY(-50%) scale(1.2);
}


/* --- TRANG CHỌN KỊCH BẢN --- */
.folder-section { 
    margin-bottom: 50px; 
    transition: opacity 0.4s ease-in-out; /* Giữ transition này để tạo hiệu ứng mượt */
}
.folder-title { font-size: 2em; padding-bottom: 10px; border-bottom: 2px solid var(--secondary-color); margin-bottom: 30px; }
.story-grid { display: grid; grid-template-columns: 1fr; gap: 25px; }
.story-card { background: var(--dark-surface); border-radius: var(--border-radius); overflow: hidden; text-decoration: none; transition: all var(--transition-speed); border: 1px solid var(--dark-border); }
.story-card:hover { transform: translateY(-8px); box-shadow: 0 0 20px rgba(0, 255, 153, 0.3); }
.story-card-image-wrapper { aspect-ratio: 3 / 4; overflow: hidden; }
.story-card-image-wrapper img { width: 100%; height: 100%; object-fit: cover; transition: transform 0.5s; }
.story-card:hover .story-card-image-wrapper img { transform: scale(1.05); }
.story-card-content { padding: 20px; }
.story-card-name { font-size: 1.3em; font-weight: 700; color: var(--dark-text-primary); }
.no-stories-message { color: var(--dark-text-secondary); font-size: 1.2em; text-align: center; padding: 40px; }

/* --- TRANG TRUYỆN CHI TIẾT --- */
.story-screen { max-width: 700px; margin: 0 auto; }
.story-title-ingame { font-size: 2.2em; text-align: center; margin-bottom: 30px; }
.story-banner { border-radius: var(--border-radius); overflow: hidden; margin-bottom: 30px; aspect-ratio: 21 / 9; }
.story-banner img { width: 100%; height: 100%; object-fit: cover; }
.story-content { background: var(--dark-surface); padding: 25px; border-radius: var(--border-radius); margin-bottom: 40px; font-size: 1.1em; }

/* --- CÁC NÚT BẤM VÀ LỰA CHỌN --- */
.btn, .btn-choice { display: inline-block; padding: 12px 25px; border-radius: 8px; font-weight: 700; cursor: pointer; text-decoration: none; font-size: 1em; text-align: center; color: #121212; border: none; transition: all var(--transition-speed); }
.btn-primary { background: var(--primary-color); box-shadow: 0 0 15px rgba(0, 255, 153, 0.4); }
.btn-primary:hover { background: var(--primary-color-darker); transform: translateY(-3px); box-shadow: 0 4px 20px rgba(0, 255, 153, 0.6); }
.btn-secondary { background: #555; color: var(--dark-text-primary); }
.btn-secondary:hover { background: #666; }
.choices { display: flex; flex-direction: column; gap: 15px; }
.choices-prompt { font-weight: 700; color: var(--dark-text-secondary); margin-bottom: 10px; text-align: center; }
.btn-choice { width: 100%; text-align: left; background: var(--dark-surface); border: 1px solid var(--dark-border); color: var(--dark-text-primary); }
.btn-choice:hover { border-color: var(--primary-color); background-color: rgba(0, 255, 153, 0.1); transform: translateX(5px); }
.btn-choice:active { transform: scale(0.98); background-color: rgba(0, 255, 153, 0.2); }
.the-end { font-size: 1.8em; text-align: center; font-weight: 700; color: var(--secondary-color); margin-top: 40px; }

/* --- RESPONSIVE DESIGN --- */
@media (min-width: 600px) { .story-grid { grid-template-columns: repeat(2, 1fr); } }
@media (min-width: 900px) { .story-grid { grid-template-columns: repeat(3, 1fr); } }