:root {
    --oneui-indigo: #4c6ef5;
    --oneui-indigo-light: #e0e7ff;
    --oneui-bg: #f2f2f7;
    --oneui-card: #ffffff;
    --oneui-text: #000000;
    --oneui-radius: 2.2rem;
    --oneui-radius-sm: 1.5rem;
}

body { 
    font-family: 'Inter', sans-serif; 
    background-color: var(--oneui-bg);
    color: var(--oneui-text);
    overscroll-behavior: none;
    overflow: hidden;
    user-select: none;
}

/* One UI 7 Design Language */
.rounded-oneui { border-radius: var(--oneui-radius); }
.rounded-oneui-sm { border-radius: var(--oneui-radius-sm); }
.shadow-oneui { box-shadow: 0 12px 48px rgba(0,0,0,0.06); }

.app-container {
    display: flex;
    height: 100vh;
    width: 100vw;
    flex-direction: column;
}

@media (min-width: 1024px) {
    .app-container { flex-direction: row; }
}

/* Sidebar (Desktop) / Bottom Drawer (Mobile) */
.control-panel {
    background: var(--oneui-card);
    z-index: 50;
    transition: transform 0.4s cubic-bezier(0.34, 1.56, 0.64, 1);
}

@media (max-width: 1023px) {
    .control-panel {
        width: 100%;
        border-top-left-radius: 2.8rem;
        border-top-right-radius: 2.8rem;
        position: fixed;
        bottom: 0;
        padding-bottom: env(safe-area-inset-bottom);
        box-shadow: 0 -12px 40px rgba(0,0,0,0.08);
    }
}

@media (min-width: 1024px) {
    .control-panel {
        width: 440px;
        height: calc(100% - 2rem);
        margin: 1rem;
        border-radius: var(--oneui-radius);
        border: 1px solid rgba(0,0,0,0.05);
    }
}

/* Interactive Map Area */
.map-viewport {
    flex: 1;
    position: relative;
    overflow: hidden;
    cursor: grab;
    touch-action: none;
}
.map-viewport:active { cursor: grabbing; }

#indiaSvg {
    width: 100%;
    height: 100%;
    display: block;
}

/* SVG Path Theming */
path {
    fill: #ffffff;
    stroke: #94a3b8;        /* Border color between states */
    stroke-width: 1.4;      /* Thickness of borders */
    vector-effect: non-scaling-stroke;
    transition: all 0.2s ease;
}

path:hover {
    fill: #3700ff !important;   /* nicer highlight */
    stroke: #3700ff !important;
    stroke-width: 2.5;
    filter: drop-shadow(0 0 4px rgba(76,110,245,0.4));
}

.state-correct {
    fill: #34c759 !important;
    stroke: #1e7a33 !important;
    stroke-width: 1.5 !important;
}

.state-wrong {
    fill: #ff3b30 !important;
    stroke: #a51f18 !important;
}

/* Zoom Controls Overlay */
.zoom-overlay {
    position: absolute;
    right: 1.5rem;
    top: 50%;
    transform: translateY(-50%);
    display: flex;
    flex-direction: column;
    gap: 1rem;
    z-index: 30;
}

.zoom-pill {
    width: 3.5rem;
    height: 3.5rem;
    background: white;
    border-radius: 1.2rem;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 4px 15px rgba(0,0,0,0.1);
    transition: transform 0.2s, background 0.2s;
}
.zoom-pill:active { transform: scale(0.9); background: #f2f2f7; }

/* Navigation Tabs */
.tab-bar {
    background: #efeff4;
    padding: 0.35rem;
    border-radius: 100px;
    display: flex;
}

.tab-btn {
    flex: 1;
    padding: 0.8rem 0;
    border-radius: 100px;
    font-weight: 700;
    font-size: 0.9rem;
    transition: all 0.3s;
}
.tab-btn.active {
    background: white;
    color: var(--oneui-indigo);
    box-shadow: 0 4px 12px rgba(0,0,0,0.08);
}

.no-scrollbar::-webkit-scrollbar { display: none; }