.study-tank-panel {
position: fixed;
left: 22px;
bottom: 22px;
z-index: 1310;
width: min(320px, calc(100vw - 32px));
border-radius: 24px;
background: linear-gradient(180deg, rgba(255, 255, 255, 0.98), rgba(243, 248, 255, 0.96));
border: 1px solid rgba(15, 23, 42, 0.08);
box-shadow: 0 24px 48px rgba(15, 23, 42, 0.18);
overflow: hidden;
transform-origin: bottom left;
animation: studyTankPopIn 0.35s cubic-bezier(0.34, 1.56, 0.64, 1);
}
.study-tank-panel[hidden] {
display: none;
}
@keyframes studyTankPopIn {
0% { opacity: 0; transform: scale(0.8) translateY(14px); }
100% { opacity: 1; transform: scale(1) translateY(0); }
}
.study-tank-head {
display: flex;
align-items: center;
gap: 10px;
padding: 12px 14px 10px;
cursor: grab;
user-select: none;
touch-action: none;
}
.study-tank-panel.is-dragging .study-tank-head {
cursor: grabbing;
}
.study-tank-panel.is-dragging {
animation: none;
}
.study-tank-panel.is-compact {
width: 216px;
}
.study-tank-panel.is-compact .study-tank-head span {
display: none;
}
.study-tank-panel.is-compact .study-tank-foot {
display: none;
}
.study-tank-panel.is-compact .study-tank-viewport {
margin-bottom: 10px;
}
.study-tank-head strong {
font-size: 14px;
letter-spacing: -0.02em;
color: #0f3d91;
}
.study-tank-head span {
flex: 1 1 auto;
color: #64748b;
font-size: 11px;
font-weight: 700;
}
.study-tank-close {
flex: 0 0 auto;
display: grid;
place-items: center;
width: 26px;
height: 26px;
padding: 0;
border-radius: 999px;
border: 1px solid rgba(15, 23, 42, 0.08);
background: rgba(248, 250, 252, 0.95);
color: #475569;
font-size: 15px;
line-height: 1;
cursor: pointer;
box-shadow: none;
}
@media (hover: hover) and (pointer: fine) {
.study-tank-close:hover {
background: #fff;
border-color: rgba(15, 23, 42, 0.16);
}
}
.study-tank-viewport {
position: relative;
margin: 0 10px;
border-radius: 18px;
overflow: hidden;
box-shadow: inset 0 2px 10px rgba(2, 44, 91, 0.25);
}
.study-tank-viewport svg {
display: block;
width: 100%;
height: auto;
}
.study-tank-bubbles {
position: absolute;
inset: 0;
pointer-events: none;
overflow: hidden;
}
.study-tank-bubble {
position: absolute;
bottom: -12px;
border-radius: 999px;
background: radial-gradient(circle at 32% 28%, rgba(255, 255, 255, 0.95), rgba(255, 255, 255, 0.25) 60%, rgba(255, 255, 255, 0.05));
border: 1px solid rgba(255, 255, 255, 0.35);
animation: studyTankBubbleRise var(--rise, 3.6s) linear forwards;
}
@keyframes studyTankBubbleRise {
0% { opacity: 0; transform: translate(0, 0) scale(0.6); }
12% { opacity: 0.9; }
100% { opacity: 0; transform: translate(var(--drift, 6px), calc(-1 * var(--height, 190px))) scale(1); }
}
.study-tank-toast {
position: absolute;
left: 50%;
bottom: 14px;
transform: translateX(-50%);
padding: 6px 12px;
border-radius: 999px;
background: rgba(255, 255, 255, 0.92);
border: 1px solid rgba(10, 132, 255, 0.18);
color: #0f3d91;
font-size: 12px;
font-weight: 800;
white-space: nowrap;
pointer-events: none;
animation: studyTankToast 1.6s ease-out forwards;
}
@keyframes studyTankToast {
0% { opacity: 0; transform: translate(-50%, 10px) scale(0.85); }
18% { opacity: 1; transform: translate(-50%, 0) scale(1.03); }
30% { transform: translate(-50%, 0) scale(1); }
75% { opacity: 1; }
100% { opacity: 0; transform: translate(-50%, -16px) scale(0.96); }
}
.study-tank-foot {
display: flex;
align-items: baseline;
justify-content: space-between;
gap: 10px;
padding: 9px 16px 12px;
}
.study-tank-foot span {
color: #64748b;
font-size: 11px;
font-weight: 700;
}
.study-tank-foot em {
color: #94a3b8;
font-size: 10.5px;
font-style: normal;
}
.study-tank-panel svg .tank-plant {
transform-box: fill-box;
transform-origin: 50% 100%;
animation: studyTankSway var(--sway, 5s) ease-in-out infinite alternate;
}
@keyframes studyTankSway {
0% { transform: rotate(-4deg); }
100% { transform: rotate(5deg); }
}
.study-tank-panel svg .tank-ray {
transform-box: fill-box;
transform-origin: 50% 0;
animation: studyTankRay 7s ease-in-out infinite alternate;
}
@keyframes studyTankRay {
0% { opacity: 0.12; transform: rotate(-2deg); }
100% { opacity: 0.3; transform: rotate(2deg); }
}
.tank-fish .tank-fish-tail {
transform-box: fill-box;
transform-origin: 8% 50%;
animation: studyTankTail 0.55s ease-in-out infinite alternate;
}
.tank-fish .tank-fish-fin {
transform-box: fill-box;
transform-origin: 20% 12%;
animation: studyTankFin 0.8s ease-in-out infinite alternate;
}
.tank-fish.is-dashing .tank-fish-tail {
animation-duration: 0.18s;
}
@keyframes studyTankTail {
0% { transform: rotate(-14deg); }
100% { transform: rotate(14deg); }
}
@keyframes studyTankFin {
0% { transform: rotate(-10deg); }
100% { transform: rotate(16deg); }
}
.tank-fish .tank-fish-body-wrap {
transform-box: fill-box;
transform-origin: center;
}
.tank-fish.is-celebrating .tank-fish-body-wrap {
animation: studyTankLoop 0.75s cubic-bezier(0.45, 0.05, 0.35, 1);
}
@keyframes studyTankLoop {
0% { transform: rotate(0deg); }
100% { transform: rotate(-360deg); }
}
.tank-fish.is-encouraging .tank-fish-body-wrap {
animation: studyTankSigh 0.9s ease-in-out;
}
@keyframes studyTankSigh {
0%, 100% { transform: rotate(0deg); }
30% { transform: rotate(7deg) translateY(2px); }
65% { transform: rotate(-5deg); }
}
.tank-mate {
transform-box: fill-box;
transform-origin: center;
}
.tank-mate.is-arriving {
animation: studyTankArrive 0.8s cubic-bezier(0.34, 1.56, 0.64, 1);
}
@keyframes studyTankArrive {
0% { opacity: 0; transform: scale(0.2) rotate(40deg); }
100% { opacity: 1; transform: scale(1) rotate(0deg); }
}
.study-tank-toggle {
cursor: pointer;
}
.study-tank-toggle.is-bouncing {
animation: studyTankToggleBounce 0.6s cubic-bezier(0.34, 1.56, 0.64, 1);
}
@keyframes studyTankToggleBounce {
0% { transform: scale(1); }
35% { transform: scale(1.14) rotate(-3deg); }
70% { transform: scale(0.96) rotate(2deg); }
100% { transform: scale(1); }
}
@media (max-width: 720px) {
.study-tank-panel {
left: 12px;
bottom: 12px;
}
}
@media (prefers-reduced-motion: reduce) {
.study-tank-panel,
.study-tank-bubble,
.study-tank-toast,
.study-tank-panel svg .tank-plant,
.study-tank-panel svg .tank-ray,
.tank-fish .tank-fish-tail,
.tank-fish .tank-fish-fin,
.tank-fish.is-celebrating .tank-fish-body-wrap,
.tank-fish.is-encouraging .tank-fish-body-wrap,
.tank-mate.is-arriving,
.study-tank-toggle.is-bouncing {
animation: none;
}
}