@keyframes n {
from {
transform:rotate(0deg)
}

to {
transform:rotate(360deg)
}
}

/* ===== Drawer ===== */
.btm-drawer {
position:fixed;
bottom:0;
left:50%;
transform:translateX(-50%);
width:clamp(320px,40%,720px);
background-color:var(--background-color-A);
border-top:1px solid rgba(255,255,255,0.08);
border-top-left-radius:12px;
border-top-right-radius:12px;
transition:transform 0.2s cubic-bezier(0.4, 0, 0.2, 1), width 0.2s cubic-bezier(0.4, 0, 0.2, 1), left 0.2s cubic-bezier(0.4, 0, 0.2, 1), border-radius 0.2s ease;
z-index:var(--z-bottom-drawer);
box-shadow:0 -1px 3px rgba(0,0,0,0.2);
}

.btm-drawer.btm-closed {
transform:translateX(-50%) translateY(calc(100% - 30px));
}

.btm-drawer:not(.btm-closed) {
width:100%;
left:0;
transform:none;
border-radius:0;
}

/* ===== Handle ===== */
.btm-drawer-handle {
height:30px;
background:rgba(0,0,0,0.35);
box-shadow:0 2px 6px rgba(0,0,0,0.3);
cursor:pointer;
display:flex;
align-items:center;
padding:0 16px;
font-size:11px;
letter-spacing:0.5px;
user-select:none;
border-top-left-radius:12px;
border-top-right-radius:12px;
transition:background 0.15s ease;
}

.btm-drawer:not(.btm-closed) .btm-drawer-handle {
border-radius:0;
}

.btm-drawer-handle:hover {
background:rgba(0,0,0,0.45);
}

/* ===== Nav ===== */
.btm-nav-left,
.btm-nav-right {
min-width:120px;
cursor:pointer;
font-size:11px;
color:rgba(255,255,255,0.45);
transition:color 0.15s ease;
}

.btm-nav-left {
text-align:left;
}

.btm-nav-center {
flex:1;
text-align:center;
color:rgba(255,255,255,0.55);
font-weight:500;
}

.btm-nav-right {
text-align:right;
}

.btm-nav-left:hover,
.btm-nav-right:hover {
color:rgba(255,255,255,0.9);
}

/* ===== Content ===== */
.btm-drawer-content {
padding:10px 12px;
height:200px;
overflow-x:auto;
overflow-y:hidden;
white-space:nowrap;
}

.btm-drawer-content::-webkit-scrollbar {
height:8px;
}

.btm-drawer-content::-webkit-scrollbar-track {
background:var(--background-color-A);
}

.btm-drawer-content::-webkit-scrollbar-thumb {
background:var(--color-scrollbar-thumb);
border-radius:var(--fjm-button-border-radius);
}

.btm-drawer-content::-webkit-scrollbar-thumb:hover {
background:var(--color-accent-hover);
}

.btm-image-container {
display:inline-flex;
gap:8px;
height:100%;
}

/* ===== Thumbnail wrapper ===== */
.btm-image-wrapper {
position:relative;
display:inline-flex;
align-items:center;
margin:0 20px 0 0;
height:100%;
}

/* ===== Thumbnail ===== */
.btm-image {
height:100%;
width:auto;
object-fit:contain;
cursor:pointer;
border:2px solid rgba(255,255,255,0.08);
border-radius:var(--fjm-border-radius);
transition:border-color 0.15s ease, box-shadow 0.15s ease, transform 0.15s ease;
}

.btm-image:hover {
border-color:rgba(255,255,255,0.25);
box-shadow:0 4px 16px rgba(0,0,0,0.5);
transform:translateY(-2px);
}

.btm-image.btm-active {
border-color:var(--color-accent);
box-shadow:0 0 0 1px var(--color-accent), 0 4px 16px rgba(129,0,0,0.3);
}

/* ===== Page number badge ===== */
.btm-page-number {
position:absolute;
top:6px;
left:6px;
background:rgba(0,0,0,0.7);
backdrop-filter:blur(4px);
color:rgba(255,255,255,0.8);
padding:1px 7px;
border-radius:10px;
font-size:10px;
font-weight:500;
z-index:1;
letter-spacing:0.5px;
}

/* ===== Action buttons ===== */
.btm-add-btn,
.btm-move-btn,
.btm-delete-btn {
position:absolute;
border:none;
cursor:pointer;
z-index:1;
color:rgba(255,255,255,0.8);
display:flex;
align-items:center;
justify-content:center;
transition:background 0.15s ease;
}

.btm-add-btn,
.btm-move-btn {
padding:0;
width:22px;
height:22px;
border-radius:50%;
background:rgba(0,0,0,0.6);
backdrop-filter:blur(4px);
font-size:14px;
}

.btm-delete-btn {
padding:0;
width:22px;
height:22px;
border-radius:50%;
background:rgba(0,0,0,0.6);
backdrop-filter:blur(4px);
top:6px;
right:6px;
font-size:12px;
}

.btm-add-btn {
right:-22px;
top:50%;
transform:translateY(-50%);
}

.btm-move-btn {
top:50%;
transform:translateY(-50%);
}

.btm-move-left {
left:6px;
}

.btm-move-right {
right:6px;
}

.btm-add-btn:hover,
.btm-move-btn:hover {
background:rgba(129,0,0,0.7);
}

.btm-delete-btn:hover {
background:rgba(180,40,40,0.8);
}

/* ===== Legacy ===== */
.btm-close-btn {
position:absolute;
top:0.5vh;
right:0.5vh;
background-color:rgba(0, 0, 0, 0.7);
border:none;
border-radius:50%;
width:2em;
height:2em;
font-size:0.8em;
cursor:pointer;
display:flex;
justify-content:center;
align-items:center;
}

.btm-drawer-content h2 {
color:var(--color-hr);
text-shadow:0 0 10px rgba(255, 149, 50, 0.7);
}

.btm-drawer-content p {
color:#e0e0e0;
}

.neon-text {
color:var(--color-hr);
}

.btm-image.btm-placeholder {
min-width:100px;
background:var(--color-tertiary);
}

/* ===== Dialog ===== */
.btm-dialog-overlay {
position:fixed;
top:0;
left:0;
width:100%;
height:100%;
background:rgba(0,0,0,0.6);
backdrop-filter:blur(4px);
display:flex;
justify-content:center;
align-items:center;
z-index:var(--z-modal);
}

.btm-dialog {
background:var(--background-color-A);
padding:24px;
border-radius:var(--fjm-border-radius);
min-width:300px;
border:1px solid rgba(255,255,255,0.08);
color:var(--color-text-primary);
box-shadow:0 16px 48px rgba(0,0,0,0.5);
}

.btm-dialog h3 {
margin:0 0 20px 0;
font-size:16px;
font-weight:500;
}

.btm-radio-group {
display:flex;
flex-direction:column;
gap:10px;
margin-bottom:20px;
}

.btm-radio-group label {
display:flex;
align-items:center;
gap:8px;
cursor:pointer;
color:var(--color-text-secondary);
padding:4px 0;
}

.btm-radio-group input[type="radio"] {
accent-color:var(--color-accent);
}

.btm-dialog-buttons {
display:flex;
justify-content:flex-end;
gap:8px;
}

.btm-dialog-button {
padding:8px 16px;
border:none;
border-radius:var(--fjm-button-border-radius);
cursor:pointer;
background:rgba(255,255,255,0.08);
color:var(--color-text-secondary);
transition:background 0.15s ease;
}

.btm-dialog-button:hover {
background:rgba(255,255,255,0.15);
}

.btm-dialog-submit {
background:var(--color-accent);
color:var(--color-text-primary);
}

.btm-dialog-submit:hover {
background:var(--color-accent-hover);
}

/* ===== Light mode ===== */
.light-mode .btm-drawer {
border-top:1px solid rgba(0,0,0,0.1);
}

.light-mode .btm-drawer-handle {
background:rgba(0,0,0,0.07);
box-shadow:0 2px 4px rgba(0,0,0,0.08);
}

.light-mode .btm-drawer-handle:hover {
background:rgba(0,0,0,0.12);
}

.light-mode .btm-dialog {
border-color:rgba(0,0,0,0.12);
box-shadow:0 16px 48px rgba(0,0,0,0.2);
}

.light-mode .btm-dialog-button {
background:rgba(0,0,0,0.06);
}

.light-mode .btm-dialog-button:hover {
background:rgba(0,0,0,0.12);
}