:root {
    --primary-green: #1a5036;
    --lime-accent: #aac811;
    --pale-blue: #e7f5fa;
    --coral-accent: #e77457;
    --primary-text: #111827;
    --secondary-blue: #006eb7;
    --bg-white: #ffffff;
    --border-color: #d1d5db;
}

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

body {
    font-family: Roboto, system-ui, -apple-system, sans-serif;
    color: var(--primary-text);
    background-color: var(--pale-blue);
    line-height: 1.5;
    padding-bottom: 70px;
}

a { color: var(--secondary-blue); text-decoration: none; }
a:hover { text-decoration: underline; }

button:focus-visible, input:focus-visible, select:focus-visible, textarea:focus-visible {
    outline: 3px solid var(--lime-accent);
    outline-offset: 2px;
}

.app-header {
    background-color: var(--primary-green);
    color: var(--bg-white);
    padding: 1rem;
    position: sticky;
    top: 0;
    z-index: 100;
}
.header-content {
    max-width: 1200px;
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    align-items: center;
}
.brand { color: var(--bg-white); font-size: 1.25rem; font-weight: 700; }
.tagline-badge {
    background-color: var(--lime-accent);
    color: var(--primary-text);
    font-size: 0.75rem;
    padding: 0.15rem 0.5rem;
    border-radius: 4px;
    margin-left: 0.5rem;
}

.app-container, .admin-container {
    max-width: 1200px;
    margin: 1.5rem auto;
    padding: 0 1rem;
    display: grid;
    grid-template-columns: 1fr;
    gap: 1.5rem;
}

@media (min-width: 768px) {
    .app-container { grid-template-columns: 240px 1fr; }
    body { padding-bottom: 0; }
}

.desktop-sidebar {
    display: none;
    background: var(--bg-white);
    padding: 1rem;
    border-radius: 8px;
    border: 1px solid var(--border-color);
    align-self: start;
}
@media (min-width: 768px) { .desktop-sidebar { display: block; } }

.desktop-sidebar h3 {
    font-size: 0.85rem;
    text-transform: uppercase;
    color: var(--primary-green);
    margin: 1rem 0 0.5rem;
}
.desktop-sidebar ul { list-style: none; }
.desktop-sidebar li a {
    display: block;
    padding: 0.4rem 0.6rem;
    border-radius: 4px;
    color: var(--primary-text);
}
.desktop-sidebar li a:hover, .desktop-sidebar li a.active {
    background-color: var(--pale-blue);
    color: var(--secondary-blue);
    font-weight: 600;
}
.nav-initial {
    font-weight: 700;
    color: var(--primary-green);
    margin-right: 0.25rem;
}

/* Category Cards Grid for Homepage */
.category-cards-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 1rem;
}
@media (min-width: 640px) {
    .category-cards-grid { grid-template-columns: repeat(2, 1fr); }
}
@media (min-width: 1024px) {
    .category-cards-grid { grid-template-columns: repeat(3, 1fr); }
}
.category-card-link {
    text-decoration: none;
    color: inherit;
    display: block;
}
.category-card-link:hover .category-card {
    border-color: var(--secondary-blue);
    box-shadow: 0 4px 12px rgba(0,0,0,0.08);
}
.category-card {
    background: var(--bg-white);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 1.25rem;
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
    height: 100%;
    transition: all 0.2s ease;
}
.cat-card-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
}
.cat-initial-badge {
    background: var(--pale-blue);
    color: var(--secondary-blue);
    font-weight: 700;
    font-size: 0.8rem;
    padding: 0.2rem 0.5rem;
    border-radius: 4px;
}
.cat-count {
    font-size: 0.8rem;
    color: #6b7280;
}
.category-card h3 {
    font-size: 1.1rem;
    color: var(--primary-green);
}
.category-card p {
    font-size: 0.85rem;
    color: #4b5563;
}

.mobile-bottom-nav {
    position: fixed;
    bottom: 0; left: 0; right: 0;
    background: var(--primary-green);
    display: flex;
    justify-content: space-around;
    padding: 0.75rem 0;
    z-index: 1000;
}
.mobile-bottom-nav a { color: var(--bg-white); font-size: 0.85rem; }
.mobile-bottom-nav a.active { color: var(--lime-accent); font-weight: 700; }
@media (min-width: 768px) { .mobile-bottom-nav { display: none; } }

.items-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 1rem;
}
@media (min-width: 640px) { .items-grid { grid-template-columns: repeat(2, 1fr); } }

.item-card {
    background: var(--bg-white);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 1.25rem;
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}
.card-meta { display: flex; gap: 0.5rem; }
.badge { font-size: 0.75rem; padding: 0.2rem 0.5rem; border-radius: 4px; }
.badge.category { background: var(--pale-blue); color: var(--secondary-blue); }
.badge.type { background: #e5e7eb; color: var(--primary-text); }

.btn {
    display: inline-block;
    padding: 0.5rem 1rem;
    border-radius: 6px;
    border: 1px solid transparent;
    font-weight: 500;
    cursor: pointer;
    text-align: center;
}
.btn.sm { padding: 0.25rem 0.5rem; font-size: 0.85rem; }
.btn.primary { background-color: var(--primary-green); color: var(--bg-white); }
.btn.secondary { background-color: var(--secondary-blue); color: var(--bg-white); }
.btn.outline { background: transparent; border-color: var(--border-color); color: var(--primary-text); }
.btn.danger { background-color: var(--coral-accent); color: var(--bg-white); }

.auth-body { display: flex; align-items: center; justify-content: center; min-height: 100vh; }
.auth-card {
    background: var(--bg-white);
    padding: 2rem;
    border-radius: 8px;
    border: 1px solid var(--border-color);
    width: 100%; max-width: 400px;
}
.auth-card input, .item-form input, .item-form select, .item-form textarea, .search-form input, .search-form select {
    width: 100%; padding: 0.5rem; margin-bottom: 1rem;
    border: 1px solid var(--border-color); border-radius: 4px;
}
.alert { padding: 0.75rem; border-radius: 4px; margin-bottom: 1rem; font-size: 0.9rem; }
.alert.error { background-color: #fee2e2; color: #991b1b; }
.alert.success { background-color: #d1fae5; color: #065f46; }

.video-container { position: relative; padding-bottom: 56.25%; height: 0; overflow: hidden; border-radius: 4px; }
.video-container iframe { position: absolute; top: 0; left: 0; width: 100%; height: 100%; border: none; }
.item-img, .thumb { max-width: 100%; height: auto; border-radius: 4px; }
.table-scroll { overflow-x: auto; }
.data-table { width: 100%; border-collapse: collapse; font-size: 0.9rem; }
.data-table th, .data-table td { padding: 0.5rem; border: 1px solid var(--border-color); text-align: left; }
.data-table th { background: var(--pale-blue); }
.qr-box { text-align: center; display: flex; flex-direction: column; align-items: center; gap: 0.5rem; }
.qr-img { width: 120px; height: 120px; }
.admin-section { background: var(--bg-white); padding: 1.5rem; border-radius: 8px; border: 1px solid var(--border-color); margin-bottom: 1.5rem; }

/* Category Admin Styling Improvements */
.category-add-form {
    display: flex;
    gap: 0.75rem;
    margin-bottom: 1.5rem;
    align-items: center;
    flex-wrap: wrap;
}
.category-add-form input {
    margin-bottom: 0 !important;
}
.category-add-form input[name="emoji_icon"] {
    width: 90px;
    text-align: center;
}
.category-add-form input[name="name"] {
    flex: 1;
    min-width: 200px;
}

.category-admin-list {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.category-admin-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0.75rem 1rem;
    background: var(--pale-blue);
    border: 1px solid var(--border-color);
    border-radius: 6px;
    transition: background-color 0.15s ease;
}
.category-admin-row:hover {
    background-color: #d8edf5;
}

.cat-info {
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.cat-badge {
    background: var(--primary-green);
    color: var(--bg-white);
    font-size: 0.75rem;
    font-weight: 700;
    padding: 0.2rem 0.5rem;
    border-radius: 4px;
    letter-spacing: 0.5px;
}