:root {
    --bg-color: #0f172a;
    --card-bg: #1e293b;
    --text-primary: #f8fafc;
    --text-secondary: #94a3b8;
    --accent-color: #38bdf8;
    --accent-glow: rgba(56, 189, 248, 0.4);

    --level-0: #1e293b;
    --level-1: #0e4429;
    --level-2: #006d32;
    --level-3: #26a641;
    --level-4: #39d353;

    /* Modern Palette */
    --level-1-v2: #164e63;
    --level-2-v2: #0891b2;
    --level-3-v2: #06b6d4;
    --level-4-v2: #22d3ee;
}

* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

body {
    font-family: 'Outfit', sans-serif;
    background-color: var(--bg-color);
    color: var(--text-primary);
    display: flex;
    justify-content: center;
    min-height: 100vh;
    padding: 20px;
}

.app-container {
    width: 100%;
    max-width: 480px;
    display: flex;
    flex-direction: column;
    gap: 24px;
    padding-bottom: 120px;
    /* Space for FAB */
}

header {
    text-align: center;
    margin-top: 20px;
}

h1 {
    font-weight: 700;
    font-size: 2rem;
    letter-spacing: -0.02em;
}

.subtitle {
    color: var(--text-secondary);
    font-size: 1rem;
    margin-top: 4px;
}

.stats-card {
    display: flex;
    justify-content: space-around;
    background: var(--card-bg);
    padding: 20px;
    border-radius: 16px;
    box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
}

.stat-item {
    display: flex;
    flex-direction: column;
    align-items: center;
}

.stat-value {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--accent-color);
}

.stat-label {
    font-size: 0.875rem;
    color: var(--text-secondary);
    margin-top: 4px;
}

/* Cat Interaction */
.cat-wrapper {
    position: fixed;
    bottom: 20%;
    /* Default vertical position, can be randomized */
    z-index: 200;
    pointer-events: none;
    /* Let clicks pass through if not on cat */
    width: 0;
    height: 0;
}

.cat-character {
    position: absolute;
    width: 80px;
    height: 80px;
    cursor: pointer;
    pointer-events: auto;
    filter: drop-shadow(0 4px 6px rgba(0, 0, 0, 0.3));
    transition: transform 0.3s cubic-bezier(0.34, 1.56, 0.64, 1);
}

/* Positioning variants */
.cat-wrapper.pos-left {
    left: 0;
}

.cat-wrapper.pos-right {
    right: 0;
}

.cat-wrapper.pos-left .cat-character {
    left: -20px;
    /* Peek out */
    transform: rotate(15deg);
    /* Slight tilt */
}

.cat-wrapper.pos-left .cat-character:hover {
    transform: translateX(10px) rotate(0deg);
    /* Peek more on hover */
}

.cat-wrapper.pos-right .cat-character {
    right: -20px;
    transform: scaleX(-1) rotate(15deg);
    /* Flip for right side */
}

.cat-wrapper.pos-right .cat-character:hover {
    transform: scaleX(-1) translateX(10px) rotate(0deg);
}

/* Fix mirrored text on right side */
.cat-wrapper.pos-right .cat-hint {
    transform: scaleX(-1);
}

/* Keyframes for Shake */
@keyframes shake-cat {
    0% {
        margin-left: 0;
        margin-top: 0;
    }

    25% {
        margin-left: -5px;
        margin-top: 2px;
    }

    50% {
        margin-left: 5px;
        margin-top: -2px;
    }

    75% {
        margin-left: -5px;
        margin-top: 2px;
    }

    100% {
        margin-left: 0;
        margin-top: 0;
    }
}





.shaking .cat-character {
    /* We use margins to avoid conflict with transforms (flipping) */
    animation: shake-cat 0.4s ease-in-out;
}

.cat-hint {
    position: absolute;
    top: -25px;
    left: 10px;
    background: white;
    color: var(--bg-color);
    padding: 4px 8px;
    border-radius: 8px;
    font-size: 0.75rem;
    font-weight: 700;
    opacity: 0;
    transition: opacity 0.2s;
    pointer-events: none;
    white-space: nowrap;
}

.cat-character:hover .cat-hint {
    opacity: 1;
}

.heatmap-container {
    background: var(--card-bg);
    padding: 20px;
    border-radius: 16px;
    overflow: hidden;
    /* Contains the heatmap */
    flex-grow: 0;
    height: auto;
}

/* ... header styles ... */

.heatmap-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 16px;
}

.header-left {
    display: flex;
    align-items: baseline;
    gap: 12px;
}

.heatmap-header h3 {
    font-size: 1.1rem;
    font-weight: 500;
    margin: 0;
}

.view-toggles {
    display: flex;
    gap: 4px;
    font-size: 0.8rem;
    color: var(--text-secondary);
    background: rgba(255, 255, 255, 0.05);
    padding: 2px 8px;
    border-radius: 12px;
}

.toggle-option {
    cursor: pointer;
    transition: color 0.2s;
}

.toggle-option:hover {
    color: var(--text-primary);
}

.toggle-option.active {
    color: var(--accent-color);
    font-weight: 600;
}

.toggle-divider {
    opacity: 0.3;
}

.icon-button {
    background: transparent;
    border: 1px solid rgba(255, 255, 255, 0.1);
    color: var(--text-secondary);
    width: 32px;
    height: 32px;
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: all 0.2s;
}

.icon-button:hover {
    background: rgba(255, 255, 255, 0.05);
    color: var(--text-primary);
    border-color: var(--text-primary);
}

.legend-container {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 0.75rem;
    color: var(--text-secondary);
    margin-bottom: 16px;
    /* Space before grid */
}

/* Legend styles moved to .legend-container, keeping .legend-scale */

.legend-scale {
    display: flex;
    gap: 2px;
}

/* Base level styles for legend */
.level {
    width: 10px;
    height: 10px;
    border-radius: 2px;
}

.level-0 {
    background-color: rgba(255, 255, 255, 0.05);
}

.level-1 {
    background-color: var(--level-1-v2);
}

.level-2 {
    background-color: var(--level-2-v2);
}

.level-3 {
    background-color: var(--level-3-v2);
}

.level-4 {
    background-color: var(--level-4-v2);
}

/* Main Container for Horizontal Scroll */
.heatmap-scroll {
    display: flex;
    overflow-x: auto;
    overflow-y: hidden;
    gap: 16px;
    padding-bottom: 12px;
    scroll-snap-type: x mandatory;
    scrollbar-width: thin;
    /* Show scrollbar for easier nav on desktop? Or hidden as per design. */
    scrollbar-color: var(--text-secondary) transparent;
}

/* Hide scrollbar but keep functionality */
.heatmap-scroll::-webkit-scrollbar {
    height: 6px;
}

.heatmap-scroll::-webkit-scrollbar-thumb {
    background: rgba(255, 255, 255, 0.1);
    border-radius: 3px;
}

/* Cards (Months or Years) */
.view-card {
    min-width: 100%;
    /* Full width for mobile swipe feel */
    scroll-snap-align: start;
    flex-shrink: 0;
    display: flex;
    flex-direction: column;
    justify-content: flex-start;
    /* Align top like Year view */
    height: auto;
    /* Ensure full height usage */
}

.view-title {
    font-size: 0.9rem;
    font-weight: 600;
    margin-bottom: 12px;
    color: var(--text-primary);
    padding-left: 4px;
    /* Align with grid */
}

/* DAY VIEW (Calendar) */
.calendar-grid {
    display: grid;
    grid-template-columns: repeat(7, 1fr);
    gap: 6px;
    /* Slightly larger gap for touch targets */
    width: 100%;
    /* Fill available width */
    align-content: start;
}

.calendar-header {
    text-align: center;
    font-size: 0.75rem;
    color: var(--text-secondary);
    font-weight: 500;
    margin-bottom: 4px;
}

.calendar-cell {
    aspect-ratio: 1;
    border-radius: 6px;
    background-color: rgba(255, 255, 255, 0.03);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.85rem;
    color: var(--text-secondary);
    transition: all 0.2s;
    user-select: none;
}

.calendar-cell.empty {
    background-color: transparent;
}

.calendar-cell.prev-month {
    opacity: 0.6;
    /* Distinguish overflow days */
    border: 1px dashed rgba(255, 255, 255, 0.1);
}

/* Levels */
.calendar-cell[data-level="1"],
.week-cell[data-level="1"] {
    background-color: var(--level-1-v2);
    color: white;
}

.calendar-cell[data-level="2"],
.week-cell[data-level="2"] {
    background-color: var(--level-2-v2);
    color: white;
}

.calendar-cell[data-level="3"],
.week-cell[data-level="3"] {
    background-color: var(--level-3-v2);
    color: white;
}

.calendar-cell[data-level="4"],
.week-cell[data-level="4"] {
    background-color: var(--level-4-v2);
    color: white;
}


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

    to {
        transform: rotate(360deg);
    }
}

.animate-spin {
    animation: spin 1s linear infinite;
}

/* MONTH VIEW (12-month grid) */
.month-grid {
    display: grid;
    /* minmax(0, 1fr) allows columns to shrink below content size (labels) to avoid overflow */
    grid-template-columns: repeat(12, minmax(0, 1fr));
    gap: 2px;
    /* Tighter gap for mobile */
    height: 100%;
}

.month-column {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 3px;
    /* Ensure column doesn't force width if label is long (though label wraps or clips? flex item.. ) */
    min-width: 0;
}

.month-label {
    font-size: 0.55rem;
    /* Smaller for mobile fit */
    text-transform: uppercase;
    letter-spacing: 0;
    color: var(--text-secondary);
    margin-bottom: 4px;
    width: 100%;
    text-align: center;
    overflow: hidden;
    /* Clip if somehow still too big */
    text-overflow: clip;
}

.week-cell {
    width: 100%;
    aspect-ratio: 1;
    /* Make them square */
    border-radius: 3px;
    background-color: rgba(255, 255, 255, 0.03);
    transition: opacity 0.2s;
}

.week-cell:hover {
    opacity: 0.8;
}