/* --- GLOBAL LAYOUT --- */
body {
    height: 100dvh; /* Dynamic viewport height handles mobile keyboards better */
    display: flex;
    flex-direction: column;
    overflow: hidden;
    overscroll-behavior: none;
}

main {
    flex: 1;
    display: flex;
    flex-direction: column;
    overflow: hidden;
}

.puzzle-card-item:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 15px -3px rgb(0 0 0 / 0.1);
    border-color: var(--primary) !important;
}

.puzzle-list-group {
    background: white;
    border: 1px solid var(--slate-200);
    border-radius: 12px;
    padding: var(--space-6);
    box-shadow: inset 0 2px 4px 0 rgb(0 0 0 / 0.05);
}

header {
    background: white;
    border-bottom: 1px solid var(--slate-200);
    padding: var(--space-4) var(--space-6);
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-shrink: 0;
}

.brand {
    font-weight: 800;
    font-size: 1.25rem;
    display: flex;
    align-items: center;
    gap: 8px;
    text-decoration: none;
    color: inherit;
}

.btn-icon {
    background: transparent;
    border: none;
    cursor: pointer;
    color: var(--slate-500);
    padding: 4px;
    border-radius: 4px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.btn-icon:hover {
    background: var(--slate-100);
    color: var(--primary);
}

/* --- AVATAR & DROPDOWN --- */
.peers {
    display: flex;
    gap: -8px;
}

.avatar {
    width: 32px;
    height: 32px;
    border-radius: 50%;
    border: 2px solid white;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 10px;
    font-weight: bold;
    color: white;
    box-shadow: 0 1px 2px rgba(0,0,0,0.1);
    transition: transform 0.2s;
    position: relative;
    cursor: pointer;
    text-transform: uppercase;
}

.avatar-dropdown {
    position: absolute;
    top: 100%;
    right: 0;
    background: white;
    border: 1px solid var(--slate-200);
    border-radius: 8px;
    box-shadow: 0 4px 6px -1px rgb(0 0 0 / 0.1);
    padding: 8px;
    display: none;
    flex-direction: column;
    gap: 4px;
    min-width: 120px;
    z-index: 100;
}

.avatar:hover .avatar-dropdown {
    display: flex;
}

.avatar-dropdown a, .avatar-dropdown button {
    padding: 8px 12px;
    border-radius: 4px;
    text-decoration: none;
    color: var(--slate-900);
    font-size: 0.85rem;
    text-align: left;
    background: none;
    border: none;
    cursor: pointer;
    width: 100%;
}

.avatar-dropdown a:hover, .avatar-dropdown button:hover {
    background: var(--slate-50);
    color: var(--primary);
}

/* --- STAGE (Viewport) --- */
.stage {
    flex: 1;
    background-color: var(--slate-50);
    overflow: auto;
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 32px;
}

.grid-layer {
    display: flex;
    align-items: center;
    justify-content: center;
}

/* --- GRID --- */
.crossword-grid {
    display: grid;
    grid-template-columns: repeat(var(--col-count, 15), 48px);
    gap: 0;
    border: 4px solid var(--slate-900);
    background: var(--slate-900);
    user-select: none;
    box-shadow: 0 20px 25px -5px rgb(0 0 0 / 0.1);
}

.cell {
    width: 48px;
    height: 48px;
    background: white;
    position: relative;
    cursor: pointer;
    border: 1px solid var(--slate-300);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    font-weight: 700;
    text-transform: uppercase;
}

.cell.block {
    background-color: var(--slate-900);
    border-color: var(--slate-900);
}

.cell.word-active {
    background-color: var(--primary-light);
}

.cell.cell-active {
    background-color: var(--highlight-cell);
    box-shadow: inset 0 0 0 3px var(--primary);
    z-index: 10;
}

.cell-num {
    position: absolute;
    top: 2px;
    left: 2px;
    font-size: 10px;
    font-weight: 700;
    color: var(--slate-500);
    line-height: 1;
    pointer-events: none;
}

.cell-input {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
    border: none;
    margin: 0;
    padding: 0;
    text-align: center;
    text-transform: uppercase;
    font-weight: 700;
    font-size: 1.5rem;
    background: transparent;
    color: var(--text-main);
    outline: none;
    cursor: pointer;
}

/* --- PUZZLE LAYOUT & SIDEBAR --- */
.puzzle-layout {
    display: flex;
    flex-direction: column;
    height: 100%;
    overflow: hidden;
    position: relative; /* Needed for absolute sidebar */
}

.stage {
    flex: 1;
    background-color: var(--slate-50);
    overflow: hidden; /* No scrollbars, we pan */
    position: relative;
    cursor: grab;
    touch-action: none;
}

.stage:active {
    cursor: grabbing;
}

.grid-layer {
    position: absolute;
    top: 50%;
    left: 50%;
    /* Use signals for transform. Base position is centered (-50% -50%). Pan adds offset. Scale applies zoom. */
    transform: translate(calc(-50% + var(--pan-x, 0) * 1px), calc(-50% + var(--pan-y, 0) * 1px)) scale(var(--zoom, 1));
    transform-origin: 50% 50%;
    will-change: transform;
}

/* --- DROPDOWNS --- */
.relative { position: relative; }

.dropdown-menu {
    position: absolute;
    top: 100%;
    right: 0;
    margin-top: 8px;
    background: white;
    border: 1px solid var(--slate-200);
    border-radius: 8px;
    box-shadow: 0 4px 6px -1px rgb(0 0 0 / 0.1);
    padding: 12px;
    min-width: 200px;
    z-index: 100;
    display: none;
    flex-direction: column;
    gap: 8px;
}

.dropdown-menu[data-show] {
    display: flex;
}

.dropdown-item {
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.w-full { width: 100%; }
.text-sm { font-size: 0.875rem; }
.text-xs { font-size: 0.75rem; }
.font-bold { font-weight: 700; }
.flex { display: flex; }
.items-center { align-items: center; }
.justify-between { justify-content: space-between; }
.gap-2 { gap: 8px; }
.gap-4 { gap: 16px; }
.w-8 { width: 32px; }
.text-primary { color: var(--primary); }
.text-slate-400 { color: var(--slate-400); }
.text-slate-500 { color: var(--slate-500); }
.text-center { text-align: center; }
.hover\:text-primary:hover { color: var(--primary); }
.hover\:underline:hover { text-decoration: underline; }
.mb-1 { margin-bottom: 4px; }
.border-t { border-top: 1px solid var(--slate-200); }
.pt-2 { padding-top: 8px; }

.btn-sm {
    padding: 4px 12px;
    border-radius: 4px;
    font-size: 0.85rem;
    font-weight: 600;
    border: 1px solid var(--slate-300);
    background: white;
    cursor: pointer;
}
.btn-sm:hover {
    border-color: var(--primary);
    color: var(--primary);
}

.input {
    border: 1px solid var(--slate-300);
    border-radius: 4px;
    padding: 4px 8px;
    font-size: 0.9rem;
}

.clue-sidebar {
    position: absolute;
    top: 0;
    right: 0;
    bottom: 0;
    width: 350px;
    background: white;
    border-left: 1px solid var(--slate-200);
    padding: 0; /* Content padding moved to wrapper */
    overflow: visible; /* Allow toggle to stick out */
    z-index: 50;
    box-shadow: -2px 0 10px rgba(0,0,0,0.1);
    transform: translateX(0);
    transition: transform 0.3s ease-in-out;
    display: flex;
    flex-direction: column;
}

.clue-sidebar.sidebar-closed {
    transform: translateX(100%);
    box-shadow: none;
}

.clue-sidebar-content {
    flex: 1;
    overflow-y: auto;
    padding: 0 var(--space-4) var(--space-4) var(--space-4);
}

.sidebar-toggle {
    position: absolute;
    left: -24px;
    top: 120px;
    width: 24px;
    height: 48px;
    background: var(--primary);
    border: 1px solid var(--brand-hover);
    border-right: none;
    border-radius: 8px 0 0 8px;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: -4px 0 10px rgba(59, 130, 246, 0.2);
    z-index: 51;
    color: white;
    transition: all 0.2s;
}

.sidebar-toggle:hover {
    background: var(--brand-hover);
    color: white;
    width: 28px;
    left: -28px;
}

.rotate-180 {
    transform: rotate(180deg);
}

.clue-sidebar h3 {
    position: sticky;
    top: 0;
    background: white;
    margin: 0;
    padding: var(--space-4) 0 var(--space-2) 0;
    z-index: 2;
    border-bottom: 1px solid var(--slate-100);
}

.clue-item {
    padding: 8px 12px;
    border-bottom: 1px solid var(--slate-50);
    font-size: 0.95rem;
    list-style: none; /* No bullets */
    transition: background-color 0.2s;
    border-radius: 4px;
}

.clue-item.clue-active {
    background-color: var(--primary-light);
    color: var(--slate-900);
}

.clickable-hint {
    cursor: pointer;
}

.clickable-hint:hover {
    color: var(--primary);
}

/* Remove default ul padding/margin if not done in reset */
.clue-sidebar ul {
    padding-left: 0;
    margin: 0;
}

/* --- FOCUS BAR --- */
.focus-bar {
    position: sticky;
    bottom: 0;
    left: 0;
    width: 100%;
    background: white;
    padding: 12px 20px;
    box-shadow: 0 -4px 20px rgba(0,0,0,0.1);
    z-index: 50;
    display: flex;
    flex-direction: column;
    align-items: center;
    transform: translateY(100%);
    transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    border-top: 1px solid var(--slate-200);
}

.focus-bar[data-show] {
    transform: translateY(0);
}

.focus-nav-btn {
    background: var(--slate-100);
    border: none;
    border-radius: 50%;
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    color: var(--slate-600);
    transition: all 0.2s;
    flex-shrink: 0;
}

.focus-nav-btn:hover {
    background: var(--primary-light);
    color: var(--primary);
}

.secondary-clue {
    cursor: pointer;
    border-radius: 6px;
    transition: all 0.2s;
    display: flex;
    align-items: center;
    opacity: 0.65;
}

.secondary-clue:hover {
    background-color: var(--slate-50);
    opacity: 1;
}

.active-clue-pressable {
    cursor: pointer;
    border-radius: 8px;
    padding: 4px;
    margin: -4px;
    transition: background-color 0.2s;
}

.active-clue-pressable:hover {
    background-color: var(--slate-50);
}

.clue-badge-col {
    width: 60px;
    flex-shrink: 0;
    display: flex;
    justify-content: flex-end;
    padding-right: 12px;
}

.focus-bar-badge {
    cursor: default;
}

/* --- TAB BAR --- */
.tab-bar {
    display: flex;
    gap: 4px;
    background: var(--slate-100);
    padding: 4px;
    border-radius: 8px;
}

.tab-link {
    padding: 6px 16px;
    border-radius: 6px;
    text-decoration: none;
    color: var(--slate-500);
    font-size: 0.9rem;
    font-weight: 600;
}

.tab-link.active {
    background: white;
    color: var(--primary);
    box-shadow: 0 1px 3px rgba(0,0,0,0.1);
}

.hidden { display: none !important; }

@media (max-width: 900px) {
    .puzzle-layout {
        grid-template-columns: 1fr auto;
    }
}