:root {
    --primary: #6366f1;
    --accent: #f43f5e;
    --bg: #f8fafc;
    --card-bg: #ffffff;
    --text-main: #1e293b;
    --text-muted: #64748b;
    --border: #e2e8f0;
    --font-bengali: 'Noto Serif Bengali', serif;
    --font-english: 'Poppins', sans-serif;
    --shadow: 0 4px 12px rgba(0,0,0,0.05);
}

[data-theme="dark"] {
    --bg: #000000;
    --card-bg: #0a0a0a;
    --text-main: #f1f5f9;
    --text-muted: #94a3b8;
    --border: #1a1a1a;
    --shadow: 0 4px 12px rgba(0,0,0,0.5);
}

* { margin: 0; padding: 0; box-sizing: border-box; }
body { 
    font-family: var(--font-english); 
    background-color: var(--bg); 
    color: var(--text-main);
    line-height: 1.6;
    transition: all 0.3s ease;
    display: flex;
    flex-direction: column;
    min-height: 100vh;
}

.wrapper { flex: 1 0 auto; }
.container { max-width: 1000px; margin: 0 auto; padding: 0 1.2rem; width: 100%; }

.main-header { 
    background: var(--card-bg); 
    padding: 12px 0; 
    position: fixed; 
    top: 0; left: 0; right: 0;
    z-index: 1000; 
    box-shadow: var(--shadow); 
    border-bottom: 1px solid var(--border);
    transition: top 0.4s ease-in-out;
}

.category-bar { 
    background: var(--card-bg); 
    padding: 10px 0; 
    border-bottom: 1px solid var(--border); 
    position: fixed; 
    top: 66px; left: 0; right: 0;
    z-index: 999; 
    transition: top 0.4s ease-in-out;
}

.header-hidden { top: -80px !important; }
.category-bar.header-hidden { top: -150px !important; }

.main-content { margin-top: 135px; }

.nav-container { display: flex; justify-content: space-between; align-items: center; }
.brand { display: flex; align-items: center; gap: 8px; cursor: pointer; }
.logo-text { font-size: 1.4rem; font-weight: 700; color: var(--primary); }
.header-right { display: flex; align-items: center; gap: 10px; }

.search-wrapper { position: relative; }
.search-wrapper input { padding: 8px 35px 8px 15px; border-radius: 50px; border: 1px solid var(--border); background: var(--bg); color: var(--text-main); width: 130px; transition: 0.3s; font-size: 0.85rem; }
.search-wrapper input:focus { width: 180px; outline: none; border-color: var(--primary); }
.search-btn { position: absolute; right: 5px; top: 50%; transform: translateY(-50%); background: var(--primary); color: white; border: none; width: 28px; height: 28px; border-radius: 50%; cursor: pointer; display: flex; align-items: center; justify-content: center; }

.theme-btn { width: 38px; height: 38px; border-radius: 12px; border: 1px solid var(--border); background: var(--bg); color: var(--text-main); cursor: pointer; display: flex; align-items: center; justify-content: center; transition: 0.3s; }
.theme-btn:hover { border-color: var(--primary); }

.cat-flex { display: flex; align-items: center; gap: 10px; position: relative; }
.fixed-cats { display: flex; align-items: center; gap: 8px; border-right: 2px solid var(--border); padding-right: 10px; }
.menu-dots-btn { background: var(--bg); border: 1px solid var(--border); width: 35px; height: 35px; border-radius: 8px; color: var(--text-main); cursor: pointer; display: flex; align-items: center; justify-content: center; }
.categories-pill-box { display: flex; gap: 8px; overflow-x: auto; scrollbar-width: none; flex: 1; }
.category-pill { padding: 6px 14px; border-radius: 8px; background: var(--bg); border: 1px solid var(--border); cursor: pointer; white-space: nowrap; font-size: 0.85rem; color: var(--text-main); transition: 0.2s; }
.category-pill.active { background: var(--primary); color: white; border-color: var(--primary); }

.mega-category-menu { position: fixed; top: 0; right: -300px; width: 280px; height: 100%; background: var(--card-bg); z-index: 1001; transition: 0.4s; box-shadow: -5px 0 15px rgba(0,0,0,0.1); padding: 20px; }
.mega-category-menu.open { right: 0; }
.menu-header { display: flex; justify-content: space-between; align-items: center; margin-bottom: 20px; font-weight: 700; color: var(--primary); font-size: 1.1rem; }
.menu-item { padding: 12px; border-radius: 10px; background: var(--bg); border: 1px solid var(--border); cursor: pointer; font-size: 0.9rem; margin-bottom: 8px; }
.menu-item:hover { background: var(--primary); color: white; }
.menu-overlay { position: fixed; inset: 0; background: rgba(0,0,0,0.6); display: none; z-index: 1000; backdrop-filter: blur(2px); }
.menu-overlay.open { display: block; }

/* Poem Card with Entry Animation */
.poem-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(160px, 1fr)); gap: 1rem; padding: 1.5rem 0; }
.poem-card { 
    background: var(--card-bg); 
    border-radius: 12px; 
    padding: 1rem; 
    border: 1px solid var(--border); 
    cursor: pointer; 
    min-height: 140px; 
    display: flex; 
    flex-direction: column; 
    justify-content: space-between;
    opacity: 0; /* শুরুতে অদৃশ্য থাকবে */
    transform: translateY(20px); /* সামান্য নিচে থাকবে */
    transition: transform 0.4s ease, box-shadow 0.3s ease, opacity 0.4s ease;
}

.poem-card.show {
    opacity: 1;
    transform: translateY(0);
}

.poem-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 20px rgba(0,0,0,0.1);
    border-color: var(--primary);
}

.card-top { display: flex; align-items: center; gap: 8px; }
.card-photo { width: 30px; height: 30px; border-radius: 8px; object-fit: cover; }
.card-poet { color: var(--primary); font-size: 0.7rem; font-weight: 600; }
.card-title { font-family: var(--font-bengali); font-size: 0.95rem; font-weight: 700; margin-top: 5px; }
.card-body { font-family: var(--font-bengali); color: var(--text-muted); font-size: 0.8rem; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; margin: 8px 0; }

.view { display: none; animation: fadeIn 0.4s ease; }
.view.active { display: block; }
.reader-container { max-width: 650px; margin: 1rem auto 2rem; padding: 0 10px; }
.poem-reader { background: var(--card-bg); padding: 2.5rem 1.5rem; border-radius: 20px; border: 1px solid var(--border); text-align: center; }
.reader-photo { max-width: 100%; border-radius: 12px; margin-bottom: 1rem; box-shadow: var(--shadow); }
.poem-content-full { font-family: var(--font-bengali); line-height: 1.8; white-space: pre-line; margin: 1.5rem auto; color: var(--text-main); font-size: 14px; }

#vocab-section { display: none; margin-top: 3rem; padding: 1.5rem; background: var(--bg); border-radius: 16px; border: 1px dashed var(--border); text-align: left; }
.vocab-header { font-size: 0.95rem; font-weight: 600; color: var(--primary); margin-bottom: 1.2rem; display: flex; align-items: center; gap: 10px; border-bottom: 1px solid var(--border); padding-bottom: 8px; }
#vocab-container { display: flex; flex-wrap: wrap; gap: 10px; }
.vocab-item { background: var(--card-bg); padding: 8px 16px; border-radius: 10px; border: 1px solid var(--border); width: fit-content; }
.vocab-word { display: block; color: var(--primary); font-size: 0.85rem; font-weight: 700; }
.vocab-meaning { display: block; color: var(--text-muted); font-size: 0.8rem; }

.font-size-controller { display: flex; align-items: center; justify-content: center; gap: 15px; margin-top: 1.5rem; padding: 10px 20px; background: var(--card-bg); border-radius: 50px; border: 1px solid var(--border); width: fit-content; margin-inline: auto; }
#font-slider { width: 120px; accent-color: var(--primary); cursor: pointer; }

.react-section { display: flex; align-items: center; gap: 10px; padding: 8px 12px; background: var(--bg); border-radius: 10px; width: fit-content; margin: 1.5rem auto 0; }
.small-like-btn { width: 38px; height: 38px; border-radius: 8px; border: 1px solid var(--border); background: var(--card-bg); cursor: pointer; color: var(--text-main); }
.small-like-btn.liked { background: var(--accent); color: white; border-color: var(--accent); }
.minimal-back-btn { background: none; border: none; color: var(--text-muted); cursor: pointer; display: flex; align-items: center; gap: 8px; margin-bottom: 1rem; font-weight: 500; }
.main-footer { text-align: center; padding: 1.5rem; background: var(--card-bg); border-top: 1px solid var(--border); color: var(--text-muted); font-size: 0.8rem; }

@keyframes fadeIn { from { opacity: 0; } to { opacity: 1; } }
@media (max-width: 480px) { .logo-text { font-size: 1.2rem; } .search-wrapper input { width: 100px; } .main-content { margin-top: 125px; } }