* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Outfit', 'Inter', -apple-system, sans-serif;
}

:root {
    --bg-color: #0d0d12;
    --card-bg: rgba(255, 255, 255, 0.05);
    --accent-color: #6366f1;
    --accent-hover: #4f46e5;
    --text-primary: #f8fafc;
    --text-secondary: #94a3b8;
    --success: #22c55e;
    --error: #ef4444;
    --glass-border: rgba(255, 255, 255, 0.1);
}

body {
    background-color: var(--bg-color);
    color: var(--text-primary);
    min-height: 100vh;
    display: flex;
    overflow: hidden;
}

#app {
    display: flex;
    width: 100%;
    height: 100vh;
}

/* Sidebar Styling */
.sidebar {
    width: 300px;
    background: var(--card-bg);
    backdrop-filter: blur(12px);
    border-right: 1px solid var(--glass-border);
    display: flex;
    flex-direction: column;
    padding: 24px;
    z-index: 10;
}

.sidebar h1 {
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: 8px;
    background: linear-gradient(135deg, #a5b4fc, #6366f1);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
}

.sidebar p {
    font-size: 0.875rem;
    color: var(--text-secondary);
    margin-bottom: 24px;
}

.province-list {
    flex: 1;
    overflow-y: auto;
    display: flex;
    flex-direction: column;
    gap: 12px;
    padding-right: 8px;
}

.province-list::-webkit-scrollbar {
    width: 4px;
}

.province-list::-webkit-scrollbar-thumb {
    background: var(--glass-border);
    border-radius: 10px;
}

.province-item {
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid var(--glass-border);
    padding: 12px 16px;
    border-radius: 12px;
    cursor: grab;
    transition: all 0.2s ease;
    user-select: none;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.province-item:hover {
    background: rgba(255, 255, 255, 0.08);
    transform: translateY(-2px);
    border-color: var(--accent-color);
}

.province-item.dragging {
    opacity: 0.5;
    transform: scale(0.95);
}

.province-item.placed {
    background: rgba(34, 197, 94, 0.1);
    border-color: rgba(34, 197, 94, 0.3);
    cursor: default;
    opacity: 0.6;
}

/* Main Content Styling */
.main-content {
    flex: 1;
    display: flex;
    flex-direction: column;
    position: relative;
    background: radial-gradient(circle at 50% 50%, #1e1e2e 0%, #0d0d12 100%);
}

.map-container {
    flex: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 40px;
    position: relative;
    overflow: hidden;
    /* Prevent map from leaking outside during zoom */
    cursor: default;
}

svg {
    width: 100%;
    height: 100%;
    max-width: 900px;
    filter: drop-shadow(0 20px 50px rgba(0, 0, 0, 0.5));
    transition: transform 0.1s ease-out;
    /* Smooth but responsive zoom */
    will-change: transform;
}

path.province {
    fill: #27272a;
    stroke: #3f3f46;
    stroke-width: 0.5;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    cursor: pointer;
}

path.province:hover {
    fill: #3f3f46;
    stroke: var(--accent-color);
    stroke-width: 1;
}

path.province.drop-target {
    fill: rgba(99, 102, 241, 0.2);
    stroke: var(--accent-color);
}

path.province.correct {
    fill: rgba(34, 197, 94, 0.4);
    stroke: var(--success);
}

path.province.wrong {
    fill: rgba(239, 68, 68, 0.4) !important;
    stroke: var(--error);
}

/* Province Variant Colors (Vibrant but Indigo-Themed) */
path.province.placed-variant-0 {
    fill: rgba(99, 102, 241, 0.6);
}

path.province.placed-variant-1 {
    fill: rgba(129, 140, 248, 0.5);
}

path.province.placed-variant-2 {
    fill: rgba(79, 70, 229, 0.7);
}

path.province.placed-variant-3 {
    fill: rgba(165, 180, 252, 0.4);
}

path.province.placed-variant-4 {
    fill: rgba(67, 56, 202, 0.65);
}

/* Start Screen Styles */
.start-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: var(--bg-color);
    z-index: 200;
    display: none;
    align-items: center;
    justify-content: center;
    background: radial-gradient(circle at center, #1e1e2e 0%, #0d0d12 100%);
}

.start-overlay.active {
    display: flex;
}

.start-card {
    background: var(--card-bg);
    backdrop-filter: blur(20px);
    border: 1px solid var(--glass-border);
    padding: 64px;
    border-radius: 40px;
    text-align: center;
    width: 90%;
    max-width: 500px;
    box-shadow: 0 40px 100px rgba(0, 0, 0, 0.5);
    animation: cardAppear 0.6s cubic-bezier(0.16, 1, 0.3, 1);
}

@keyframes cardAppear {
    from {
        opacity: 0;
        transform: translateY(20px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.start-card h1 {
    font-size: 2.5rem;
    margin-bottom: 16px;
    background: linear-gradient(135deg, #a5b4fc, #6366f1);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
}

.input-group {
    margin: 32px 0;
}

.start-card input {
    width: 100%;
    padding: 16px 24px;
    border-radius: 16px;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid var(--glass-border);
    color: white;
    font-size: 1.1rem;
    outline: none;
    transition: border-color 0.2s ease;
}

.start-card input:focus {
    border-color: var(--accent-color);
}

/* Controls */
.controls {
    position: absolute;
    bottom: 32px;
    right: 32px;
    display: flex;
    gap: 16px;
}

.btn {
    padding: 12px 32px;
    border-radius: 14px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s ease;
    border: none;
    font-size: 1rem;
}

.btn-primary {
    background: var(--accent-color);
    color: white;
    box-shadow: 0 10px 20px rgba(99, 102, 241, 0.3);
}

.btn-primary:hover {
    background: var(--accent-hover);
    transform: translateY(-2px);
    box-shadow: 0 15px 30px rgba(99, 102, 241, 0.4);
}

.btn-secondary {
    background: rgba(255, 255, 255, 0.05);
    color: var(--text-primary);
    backdrop-filter: blur(10px);
    border: 1px solid var(--glass-border);
}

.btn-secondary:hover {
    background: rgba(255, 255, 255, 0.1);
}

/* Modal / Feedback */
.feedback-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.8);
    backdrop-filter: blur(8px);
    display: none;
    align-items: center;
    justify-content: center;
    z-index: 100;
}

.result-card {
    background: #1e1e2e;
    border: 1px solid var(--glass-border);
    padding: 48px;
    border-radius: 32px;
    text-align: center;
    max-width: 400px;
    width: 90%;
    transform: scale(0.9);
    transition: all 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
}

.feedback-overlay.active {
    display: flex;
}

.feedback-overlay.active .result-card {
    transform: scale(1);
}

.grade-circle {
    width: 120px;
    height: 120px;
    border-radius: 50%;
    border: 4px solid var(--accent-color);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 3rem;
    font-weight: 800;
    margin: 0 auto 24px;
    color: var(--accent-color);
}

.stats {
    margin: 24px 0;
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.stat-item {
    display: flex;
    justify-content: space-between;
    color: var(--text-secondary);
}

.stat-value {
    color: var(--text-primary);
    font-weight: 600;
}