@import url('https://fonts.googleapis.com/css2?family=Playpen+Sans:wght@100..800&display=swap');

:root {
    /* Default theme: Pastel Pink */
    --color-primary: #ffeef8;
    --color-secondary: #ffe4f3;
    --color-tertiary: #ffd4f0;
    --color-accent1: #e4d4ff;
    --color-accent2: #d4e4ff;
    --color-button-border: #ffb3d9;
    --color-button-text: #000000;
    --color-toggle-bg: #b8a4ff;
    --color-scrollbar-thumb: #ffb3d9;
    --color-scrollbar-track: #ffe4f3;
    --color-chart-bg: #fff5fb;
    --color-text: #000000;
    --color-text-secondary: #333333;
    --color-panel-bg: white;
    --color-panel-border: #ffb3d9;
    --color-input-bg: #ffe4f3;
    --color-overlay-bg: rgba(255, 192, 203, 0.5);
}

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

body {
    font-family: 'Playpen Sans', cursive;
    overflow: hidden;
    width: 100vw;
    height: 100vh;
}

/* Main screen */
.main-screen {
    position: relative;
    width: 100vw;
    height: 100vh;
    overflow: hidden;
}

/* Background - cute gradient that zooms to fit */
.background {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 100%;
    height: 100%;
    background: url('Backdrop-1.png') no-repeat center center;
    background-size: cover;
    background-position: center;
}

/* Coin tracker - top left corner */
.coin-tracker {
    position: absolute;
    top: 20px;
    left: 20px;
    background: var(--color-panel-bg);
    border: 3px solid var(--color-button-border);
    border-radius: 30px;
    padding: 10px 20px;
    display: flex;
    align-items: center;
    gap: 8px;
    box-shadow: 0 4px 0 var(--color-button-border);
    z-index: 100;
    transition: transform 0.2s;
}

.coin-tracker:hover {
    transform: scale(1.05);
}

.coin-icon {
    font-size: 24px;
    color: #ffd700;
    animation: spin 3s linear infinite;
}

.coin-icon i {
    color: #ffd700;
}

.coin-count {
    font-size: 20px;
    font-weight: bold;
    color: var(--color-text);
    min-width: 30px;
    text-align: center;
}

@keyframes spin {
    0%, 80%, 100% {
        transform: rotateY(0deg);
    }
    85%, 95% {
        transform: rotateY(180deg);
    }
}

/* Expandable menu - top right corner */
.menu-container {
    position: absolute;
    top: 20px;
    right: 20px;
    z-index: 100;
    display: flex;
    flex-direction: column;
    align-items: flex-end;
    gap: 10px;
}

.menu-button {
    width: 60px;
    height: 60px;
    background: var(--color-panel-bg);
    border: 3px solid var(--color-button-border);
    border-radius: 50%;
    font-size: 28px;
    color: var(--color-toggle-bg);
    cursor: pointer;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.15);
    transition: all 0.2s;
    display: flex;
    align-items: center;
    justify-content: center;
}

.menu-button:hover {
    transform: scale(1.05);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.25);
}

.menu-button:active {
    transform: scale(0.95);
}

.menu-button.active {
    background: var(--color-scrollbar-track);
    transform: rotate(90deg);
}

.menu-items {
    display: flex;
    flex-direction: column;
    gap: 10px;
    max-height: 0;
    overflow: visible;
    transition: max-height 0.3s ease-out;
}

.menu-items.expanded {
    max-height: 350px;
    padding-bottom: 10px;
}

.menu-item {
    width: 55px;
    height: 55px;
    background: var(--color-panel-bg);
    border: 3px solid var(--color-toggle-bg);
    border-radius: 50%;
    font-size: 24px;
    cursor: pointer;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.15);
    transition: all 0.2s;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transform: translateY(-10px);
}

.menu-items.expanded .menu-item {
    opacity: 1;
    transform: translateY(0);
}

.menu-items.expanded .menu-item:nth-child(1) {
    transition-delay: 0.05s;
}

.menu-items.expanded .menu-item:nth-child(2) {
    transition-delay: 0.1s;
}

.menu-items.expanded .menu-item:nth-child(3) {
    transition-delay: 0.15s;
}

.menu-items.expanded .menu-item:nth-child(4) {
    transition-delay: 0.2s;
}

.menu-item:hover {
    transform: scale(1.1);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.25);
}

.menu-item:active {
    transform: scale(0.95);
}

.menu-item i {
    color: var(--color-toggle-bg);
    position: relative;
    top: 2px;
}

/* Character container - centres the character */
.character-container {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    z-index: 250;
    opacity: 0;
    transition: opacity 0.1s;
}

.character-container.loaded {
    opacity: 1;
}

/* Placeholder character */
.character {
    width: 300px;
    height: auto;
    display: block;
    transition: opacity 0.1s ease-in-out;
    image-rendering: -webkit-optimize-contrast;
    image-rendering: crisp-edges;
}

/* Equipped items */
.equipped-item {
    opacity: 1;
    transition: opacity 0.2s;
    user-select: none;
}

/* Overlay - semi-transparent background */
.overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    background: var(--color-overlay-bg);
    backdrop-filter: blur(10px);
    display: none;
    align-items: center;
    justify-content: center;
    z-index: 1000;
}

.overlay.active {
    display: flex;
}

/* Timer Setup Panel */
.timer-setup-panel {
    background: var(--color-panel-bg);
    border: 4px solid var(--color-button-border);
    border-radius: 30px;
    padding: clamp(20px, 5vh, 40px);
    min-width: 350px;
    max-width: 90vw;
    box-shadow: 0 10px 40px rgba(255, 105, 180, 0.3);
    display: flex;
    flex-direction: column;
    gap: clamp(10px, 2vh, 25px);
    position: relative;
}

.panel-title {
    text-align: center;
    color: var(--color-text);
    font-size: clamp(16px, 3.5vh, 28px);
    margin: 0;
    flex-shrink: 0;
}

/* Timer Input Groups */
.timer-input-group {
    display: flex;
    flex-direction: column;
    gap: clamp(4px, 1vh, 8px);
}

.timer-input-group label {
    color: var(--color-text);
    font-weight: bold;
    font-size: clamp(14px, 2.5vh, 16px);
}

.timer-input {
    background: var(--color-scrollbar-track);
    border: 3px solid var(--color-button-border);
    border-radius: 20px;
    padding: clamp(10px, 2vh, 15px) 20px;
    font-family: inherit;
    font-size: clamp(18px, 3.5vh, 24px);
    font-weight: bold;
    color: var(--color-text);
    text-align: center;
    cursor: pointer;
    transition: all 0.2s;
}

.timer-input:hover {
    background: var(--color-secondary);
    transform: scale(1.02);
}

.timer-input:focus {
    outline: none;
    border-color: var(--color-button-text);
    box-shadow: 0 0 0 3px rgba(0, 0, 0, 0.1);
}

.timer-input[type="time"],
.timer-input[type="number"],
.timer-input[type="date"] {
    cursor: text;
}

.timer-input[type="number"]::-webkit-inner-spin-button,
.timer-input[type="number"]::-webkit-outer-spin-button {
    opacity: 1;
}

.timer-input[type="date"]::-webkit-calendar-picker-indicator {
    cursor: pointer;
    opacity: 0.7;
}

.timer-input[type="date"]::-webkit-calendar-picker-indicator:hover {
    opacity: 1;
}

.time-unit {
    color: var(--color-text-secondary);
    font-size: 14px;
    text-align: center;
}

/* Subject Selector */
.subject-selector {
    position: relative;
}

.subject-display {
    background: var(--color-scrollbar-track);
    border: 3px solid var(--color-button-border);
    border-radius: 20px;
    padding: 15px 20px;
    cursor: pointer;
    transition: all 0.2s;
    display: flex;
    align-items: center;
    gap: 10px;
}

.subject-display:hover {
    background: var(--color-secondary);
    transform: scale(1.02);
}

.subject-color-tag {
    width: 20px;
    height: 20px;
    border-radius: 50%;
    border: 2px solid white;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.2);
}

.subject-text {
    color: var(--color-text);
    font-weight: bold;
    flex: 1;
}

.subject-dropdown {
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    margin-top: 8px;
    background: var(--color-panel-bg);
    border: 3px solid var(--color-button-border);
    border-radius: 20px;
    max-height: 150px;
    overflow-y: auto;
    display: none;
    box-shadow: 0 8px 20px rgba(255, 107, 181, 0.3);
    z-index: 1000;
}

.subject-dropdown::-webkit-scrollbar {
    width: 8px;
}

.subject-dropdown::-webkit-scrollbar-track {
    background: var(--color-scrollbar-track);
    border-radius: 10px;
}

.subject-dropdown::-webkit-scrollbar-thumb {
    background: #ffb3d9;
    border-radius: 10px;
}

.subject-dropdown::-webkit-scrollbar-thumb:hover {
    background: #ff6bb5;
}

.subject-dropdown.active {
    display: block;
}

.subject-option {
    padding: 12px 20px;
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: 10px;
    transition: background 0.2s;
}

.subject-option:hover {
    background: var(--color-scrollbar-track);
}

.subject-option:first-child {
    border-radius: 17px 17px 0 0;
}

.subject-option:last-child {
    border-radius: 0 0 17px 17px;
}

.subject-option.add-subject {
    color: var(--color-text-secondary);
    font-weight: bold;
    border-bottom: 2px solid var(--color-scrollbar-track);
}

.plus-icon {
    font-size: 20px;
}

.start-button {
    margin-top: clamp(5px, 1vh, 10px);
    font-size: clamp(16px, 3vh, 20px);
}

/* Keypad Panel */
.keypad-panel {
    background: var(--color-panel-bg);
    border: 4px solid #b8a4ff;
    border-radius: 30px;
    padding: 30px;
    box-shadow: 0 10px 40px rgba(184, 164, 255, 0.3);
}

.keypad-display {
    background: #f0ebff;
    border: 3px solid var(--color-toggle-bg);
    border-radius: 20px;
    padding: 20px;
    font-size: 36px;
    font-weight: bold;
    color: var(--color-text);
    text-align: center;
    margin-bottom: 20px;
    min-height: 50px;
}

.keypad-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 10px;
}

.keypad-button {
    background: var(--color-panel-bg);
    border: 3px solid var(--color-toggle-bg);
    border-radius: 15px;
    padding: 20px;
    font-family: inherit;
    font-size: 24px;
    font-weight: bold;
    color: var(--color-text-secondary);
    cursor: pointer;
    box-shadow: 0 3px 0 var(--color-toggle-bg);
    transition: all 0.1s;
}

.keypad-button:hover {
    transform: translateY(1px);
    box-shadow: 0 2px 0 var(--color-toggle-bg);
}

.keypad-button:active {
    transform: translateY(3px);
    box-shadow: 0 0 0 var(--color-toggle-bg);
}

.keypad-button.clear {
    background: var(--color-scrollbar-track);
    border-color: var(--color-button-border);
    color: var(--color-text);
    box-shadow: 0 3px 0 var(--color-button-border);
}

.keypad-button.clear:hover {
    box-shadow: 0 2px 0 var(--color-button-border);
}

.keypad-button.clear:active {
    box-shadow: 0 0 0 var(--color-button-border);
}

.keypad-button.confirm {
    background: var(--color-accent2);
    border-color: var(--color-toggle-bg);
    color: var(--color-toggle-bg);
    box-shadow: 0 3px 0 var(--color-toggle-bg);
}

.keypad-button.confirm:hover {
    box-shadow: 0 2px 0 var(--color-toggle-bg);
}

.keypad-button.confirm:active {
    box-shadow: 0 0 0 var(--color-toggle-bg);
}

/* Add Subject Panel */
.add-subject-panel {
    background: var(--color-panel-bg);
    border: 4px solid var(--color-button-border);
    border-radius: 30px;
    padding: 30px;
    min-width: 350px;
    max-width: 90vw;
    box-shadow: 0 10px 40px rgba(255, 105, 180, 0.3);
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.subject-name-input {
    background: var(--color-scrollbar-track);
    border: 3px solid var(--color-button-border);
    border-radius: 20px;
    padding: 15px 20px;
    font-family: inherit;
    font-size: 18px;
    color: var(--color-text);
    font-weight: bold;
}

.subject-name-input::placeholder {
    color: #ffb3d9;
}

.subject-name-input:focus {
    outline: none;
    border-color: var(--color-button-text);
    box-shadow: 0 0 0 3px rgba(255, 107, 181, 0.2);
}

.color-picker-section label {
    color: var(--color-text);
    font-weight: bold;
    font-size: 16px;
    display: block;
    margin-bottom: 10px;
}

.color-wheel {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 12px;
}

.color-option {
    width: 50px;
    height: 50px;
    border-radius: 50%;
    cursor: pointer;
    border: 3px solid transparent;
    transition: all 0.2s;
    box-shadow: 0 3px 8px rgba(0, 0, 0, 0.2);
}

.color-option:hover {
    transform: scale(1.1);
}

.color-option.selected {
    border-color: white;
    box-shadow: 0 0 0 3px currentColor, 0 3px 8px rgba(0, 0, 0, 0.3);
}

.subject-preview {
    background: var(--color-scrollbar-track);
    border: 3px solid var(--color-button-border);
    border-radius: 20px;
    padding: 15px 20px;
    display: flex;
    align-items: center;
    gap: 10px;
}

.subject-preview .subject-color-tag {
    width: 24px;
    height: 24px;
}

.subject-preview span {
    color: var(--color-text);
    font-weight: bold;
    font-size: 16px;
}

.button-row {
    display: flex;
    gap: 10px;
}

.button-row .kawaii-button {
    flex: 1;
}

/* Kawaii rounded button style (for later use) */
.kawaii-button {
    background: var(--color-panel-bg);
    border: 3px solid var(--color-button-border);
    border-radius: 25px;
    padding: 12px 24px;
    font-family: inherit;
    font-size: 16px;
    font-weight: bold;
    color: var(--color-text);
    cursor: pointer;
    box-shadow: 0 4px 0 var(--color-button-border);
    transition: all 0.1s;
}

.kawaii-button:hover {
    transform: translateY(2px);
    box-shadow: 0 2px 0 var(--color-button-border);
}

.kawaii-button:active {
    transform: translateY(4px);
    box-shadow: 0 0 0 var(--color-button-border);
}

.kawaii-button.secondary {
    background: var(--color-input-bg);
    border-color: var(--color-text-secondary);
    color: var(--color-text-secondary);
    box-shadow: 0 4px 0 var(--color-text-secondary);
}

.kawaii-button.secondary:hover {
    box-shadow: 0 2px 0 var(--color-text-secondary);
}

.kawaii-button.secondary:active {
    box-shadow: 0 0 0 var(--color-text-secondary);
}

/* Countdown Timer - Floating Above Pet */
.countdown-overlay {
    position: fixed;
    top: 30%;
    left: 50%;
    transform: translateX(-50%);
    display: none;
    flex-direction: column;
    align-items: center;
    z-index: 100;
    gap: 15px;
    background: rgba(255, 255, 255, 0.15);
    backdrop-filter: blur(12px);
    border: 3px solid var(--color-button-border);
    border-radius: 30px;
    padding: 40px 60px;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.1);
    width: 700px;
}

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

.countdown-display {
    font-size: 10vw;
    font-weight: bold;
    color: white !important;
    text-align: center;
    background: none;
    padding: 0;
    border: none;
    min-width: 400px;
    font-variant-numeric: tabular-nums;
    text-shadow: 0 4px 8px rgba(0, 0, 0, 0.3);
}

.countdown-controls {
    display: flex;
    gap: 12px;
}

.control-button {
    width: 50px;
    height: 50px;
    background: white;
    border: none;
    border-radius: 50%;
    font-size: 24px;
    cursor: pointer;
    box-shadow: 0 0 12px 4px rgba(0, 0, 0, 0.3);
    transition: all 0.2s;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--color-text);
}

.control-button:hover {
    box-shadow: 0 0 16px 6px rgba(0, 0, 0, 0.4);
}

.control-button i {
    display: flex;
    align-items: center;
    justify-content: center;
    line-height: 1;
}

.timer-state-label {
    font-size: 28px;
    font-weight: bold;
    color: white !important;
    text-transform: uppercase;
    letter-spacing: 2px;
    margin-bottom: 5px;
    text-shadow: 0 2px 4px rgba(0, 0, 0, 0.3);
    text-decoration: underline;
}

.pomodoro-tracker {
    display: flex;
    align-items: center;
    gap: 8px;
    margin-top: 10px;
    margin-bottom: 10px;
}

.pomodoro-heart {
    font-size: 24px;
    color: var(--color-button-border);
    opacity: 0.3;
    transition: opacity 0.3s;
    background: white;
    border-radius: 50%;
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 0 10px 3px rgba(0, 0, 0, 0.2);
}

.pomodoro-heart.filled {
    opacity: 1;
    color: var(--color-text);
}

.pomodoro-heart.pulsing {
    animation: heartPulse 1.5s ease-in-out infinite;
}

@keyframes heartPulse {
    0%, 100% {
        opacity: 0.3;
    }
    50% {
        opacity: 1;
    }
}

.pomodoro-coffee {
    font-size: 24px;
    margin-left: 8px;
    opacity: 0.5;
    background: white;
    border-radius: 50%;
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 0 10px 3px rgba(0, 0, 0, 0.2);
    color: var(--color-text);
}

.control-button:active {
    transform: translateY(4px);
    box-shadow: 0 0 0 var(--color-button-border);
}

.control-button.stop-button {
    box-shadow: 0 0 12px 4px rgba(0, 0, 0, 0.3);
}

.control-button.stop-button:hover {
    box-shadow: 0 0 16px 6px rgba(0, 0, 0, 0.4);
}

.control-button.stop-button:active {
    box-shadow: 0 0 10px 3px rgba(0, 0, 0, 0.3);
}

/* Session Statistics Panel */
.stats-panel {
    background: var(--color-panel-bg);
    border: 4px solid var(--color-button-border);
    border-radius: 30px;
    padding: 40px;
    min-width: 400px;
    max-width: 90vw;
    box-shadow: 0 10px 40px rgba(255, 105, 180, 0.3);
    position: relative;
}

.close-button {
    position: absolute;
    top: 15px;
    left: 15px;
    width: 40px;
    height: 40px;
    background: var(--color-scrollbar-track);
    border: 3px solid var(--color-button-border);
    border-radius: 50%;
    font-size: 20px;
    font-weight: bold;
    color: var(--color-text);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.2s;
}

.close-button:hover {
    background: var(--color-secondary);
    transform: scale(1.1);
}

.close-button:active {
    transform: scale(0.95);
}

.stats-content {
    display: flex;
    flex-direction: column;
    gap: 20px;
    margin: 20px 0;
}

.stat-item {
    background: var(--color-scrollbar-track);
    border: 3px solid var(--color-button-border);
    border-radius: 20px;
    padding: 15px 20px;
    display: flex;
    align-items: center;
    gap: 15px;
}

.stat-icon {
    font-size: 40px;
    width: 50px;
    text-align: center;
    display: flex;
    align-items: center;
    justify-content: center;
}

.stat-icon i {
    display: flex;
    align-items: center;
    justify-content: center;
    line-height: 1;
}

.stat-details {
    flex: 1;
    display: flex;
    flex-direction: column;
    gap: 5px;
}

.stat-label {
    font-size: 14px;
    color: var(--color-text-secondary);
    font-weight: bold;
}

.stat-value {
    font-size: 20px;
    color: var(--color-text);
    font-weight: bold;
}

.coins-earned {
    background: var(--color-scrollbar-track);
    border: 4px solid var(--color-button-border);
    border-radius: 25px;
    padding: 25px;
    text-align: center;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
    margin-top: 10px;
}

.coins-earned-label {
    font-size: 18px;
    color: var(--color-text);
    font-weight: bold;
    margin-bottom: 10px;
}

.coins-earned-amount {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
}

.coin-icon-large {
    font-size: 48px;
    color: #ffd700;
    animation: spin 3s linear infinite;
}

.coin-icon-large i {
    color: #ffd700;
}

.coins-earned-value {
    font-size: 48px;
    font-weight: bold;
    color: var(--color-text);
}

#backToMainButton {
    width: 100%;
    font-size: 18px;
    margin-top: 20px;
}

/* Statistics Page */
.stats-page-panel {
    background: var(--color-panel-bg);
    border: 4px solid var(--color-button-border);
    border-radius: 30px;
    padding: clamp(15px, 3vh, 40px);
    width: clamp(300px, 90vw, 800px);
    height: clamp(400px, 85vh, 700px);
    box-shadow: 0 10px 40px rgba(255, 105, 180, 0.3);
    position: relative;
    display: flex;
    flex-direction: column;
    gap: clamp(10px, 2vh, 25px);
    overflow: hidden;
}

.stats-controls {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 15px;
    flex-shrink: 0;
}

.view-tabs {
    display: flex;
    gap: 5px;
    background: var(--color-scrollbar-track);
    border: 3px solid var(--color-button-border);
    border-radius: 20px;
    padding: 5px;
}

.view-tab {
    background: transparent;
    border: none;
    border-radius: 15px;
    padding: clamp(6px, 1.5vh, 10px) clamp(12px, 2vw, 20px);
    font-family: inherit;
    font-size: clamp(11px, 2vh, 14px);
    font-weight: bold;
    color: var(--color-text);
    cursor: pointer;
    transition: all 0.2s;
}

.view-tab:hover {
    background: var(--color-scrollbar-track);
}

.view-tab.active {
    background: var(--color-panel-bg);
    box-shadow: 0 2px 5px rgba(0, 0, 0, 0.1);
}

.view-toggle-button {
    background: var(--color-scrollbar-track);
    border: 3px solid var(--color-button-border);
    border-radius: 20px;
    padding: clamp(6px, 1.5vh, 10px) clamp(10px, 2vw, 20px);
    font-family: inherit;
    font-size: clamp(11px, 2vh, 14px);
    font-weight: bold;
    color: var(--color-text);
    cursor: pointer;
    transition: all 0.2s;
}

.view-toggle-button:hover {
    background: var(--color-secondary);
    transform: scale(1.05);
}

.view-toggle-button:active {
    transform: scale(0.95);
}

.date-navigator {
    display: flex;
    align-items: center;
    gap: 15px;
}

.nav-arrow {
    width: clamp(30px, 5vh, 40px);
    height: clamp(30px, 5vh, 40px);
    background: var(--color-panel-bg);
    border: 3px solid var(--color-toggle-bg);
    border-radius: 50%;
    font-size: clamp(12px, 2vh, 16px);
    color: var(--color-text-secondary);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.2s;
}

.nav-arrow:hover {
    background: var(--color-scrollbar-track);
    transform: scale(1.1);
}

.nav-arrow:active {
    transform: scale(0.9);
}

.date-display {
    font-size: clamp(14px, 2.5vh, 18px);
    font-weight: bold;
    color: var(--color-text);
    min-width: 100px;
    text-align: center;
}

.chart-container {
    display: flex;
    flex-direction: column;
    background: var(--color-chart-bg);
    border: 3px solid var(--color-button-border);
    border-radius: 20px;
    padding: 10px 20px 10px 10px;
    flex: 1;
    overflow-y: auto;
    min-height: 0;
}

.chart-area {
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    gap: 5px;
    padding: 5px 10px 0 0;
    margin-bottom: 20px;
    margin-left: 50px;
    position: relative;
    width: calc(100% - 50px);
    flex: 1;
    border-left: 2px solid rgba(200, 200, 200, 0.7);
    border-bottom: 2px solid rgba(200, 200, 200, 0.7);
}

.chart-grid-line {
    position: absolute;
    top: 0;
    bottom: 0;
    width: 2px;
    background: rgba(200, 200, 200, 0.6);
    pointer-events: none;
    z-index: 0;
}

.chart-grid-line-dashed {
    position: absolute;
    top: 0;
    bottom: 0;
    width: 1px;
    background: none;
    border-left: 1px dashed rgba(200, 200, 200, 0.5);
    pointer-events: none;
    z-index: 0;
}

.chart-day-separator {
    position: relative;
    border-bottom: 1px dashed rgba(200, 200, 200, 0.55);
    margin-bottom: 5px;
}

.chart-hour-label {
    position: absolute;
    bottom: -18px;
    font-size: 10px;
    font-weight: bold;
    color: var(--color-text-secondary);
    transform: translateX(-50%);
    pointer-events: none;
    z-index: 2;
}

.chart-bar-container {
    display: flex;
    flex-direction: row;
    align-items: center;
    gap: 0;
    flex: 1;
    min-height: 15px;
    width: 100%;
    position: relative;
    z-index: 1;
}

.chart-bar {
    height: 100%;
    background: transparent;
    border: none;
    border-radius: 0 8px 8px 0;
    min-width: 5px;
    transition: all 0.3s;
    display: flex;
    flex-direction: row;
}

.bar-segment {
    height: 100%;
    transition: all 0.3s;
    min-width: 1px;
}

.bar-segment:last-child {
    border-radius: 0 8px 8px 0;
}

.session-block {
    position: absolute;
    height: 100%;
    border-radius: 4px;
    cursor: pointer;
    transition: all 0.2s;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
}

.session-block:hover {
    opacity: 0.8;
    transform: translateY(-2px);
    box-shadow: 0 3px 6px rgba(0, 0, 0, 0.2);
}

.bar-label {
    font-size: clamp(9px, 1.5vw, 12px);
    color: var(--color-text-secondary);
    font-weight: bold;
    text-align: center;
    width: 45px;
    position: absolute;
    left: -50px;
    flex-shrink: 0;
}

.chart-legend {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    justify-content: center;
    flex-shrink: 0;
}

.legend-item {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 8px 15px;
    background: var(--color-scrollbar-track);
    border: 2px solid var(--color-button-border);
    border-radius: 15px;
    transition: all 0.2s;
}

.legend-item:hover {
    background: var(--color-secondary);
    transform: translateY(-2px);
    box-shadow: 0 3px 8px rgba(0, 0, 0, 0.15);
}

.legend-color {
    width: 20px;
    height: 20px;
    border-radius: 50%;
    border: 2px solid white;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.2);
}

.legend-label {
    font-size: 14px;
    font-weight: bold;
    color: var(--color-text);
}

/* Shop Panel */
.shop-panel {
    background: var(--color-panel-bg);
    border: 4px solid var(--color-button-border);
    border-radius: 30px;
    padding: 40px;
    width: calc(100vw - 80px);
    height: calc(100vh - 80px);
    max-width: 1200px;
    max-height: 900px;
    overflow-y: auto;
    overflow-x: hidden;
    overscroll-behavior: none;
    -webkit-overflow-scrolling: auto;
    box-shadow: 0 10px 40px rgba(255, 105, 180, 0.3);
    position: relative;
    display: flex;
    flex-direction: column;
    gap: 25px;
}

.shop-panel::-webkit-scrollbar {
    width: 12px;
}

.shop-panel::-webkit-scrollbar-track {
    background: var(--color-scrollbar-track);
    border-radius: 10px;
    margin: 20px 0;
}

.shop-panel::-webkit-scrollbar-thumb {
    background: var(--color-scrollbar-thumb);
    border-radius: 10px;
    border: 2px solid var(--color-scrollbar-track);
}

.shop-panel::-webkit-scrollbar-thumb:hover {
    background: var(--color-button-text);
}

.shop-items-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
}

.shop-balance {
    background: var(--color-scrollbar-track);
    border: 3px solid var(--color-button-border);
    border-radius: 20px;
    padding: 15px 25px;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    font-size: 20px;
    font-weight: bold;
    color: var(--color-text);
    box-shadow: 0 4px 10px rgba(0, 0, 0, 0.1);
}

.shop-coin-icon {
    font-size: 24px;
    color: #ffd700;
}

.shop-coin-icon i {
    color: #ffd700;
}

.shop-coin-count {
    color: var(--color-text);
}

.shop-tabs {
    display: flex;
    gap: 10px;
    border-bottom: 3px solid var(--color-button-border);
    padding-bottom: 10px;
}

.shop-tab {
    background: transparent;
    border: none;
    border-radius: 15px 15px 0 0;
    padding: 10px 20px;
    font-family: inherit;
    font-size: 16px;
    font-weight: bold;
    color: var(--color-text);
    cursor: pointer;
    transition: all 0.2s;
}

.shop-tab:hover {
    background: var(--color-scrollbar-track);
}

.shop-tab.active {
    background: var(--color-scrollbar-track);
    border-bottom: 3px solid var(--color-toggle-bg);
    margin-bottom: -13px;
}

.shop-content {
    flex: 1;
    min-height: 0;
    overflow-y: auto;
}

.shop-items-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
}

.shop-themes-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
}

.shop-backgrounds-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
}

.shop-item {
    background: var(--color-scrollbar-track);
    border: 3px solid var(--color-button-border);
    border-radius: 20px;
    padding: 20px;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 12px;
    transition: all 0.2s;
    cursor: pointer;
}

.shop-item:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 20px rgba(0, 0, 0, 0.2);
}

.shop-item-icon {
    font-size: 60px;
}

.shop-item-name {
    font-size: 16px;
    font-weight: bold;
    color: var(--color-text);
    text-align: center;
}

.shop-item-price {
    display: flex;
    align-items: center;
    gap: 5px;
    background: var(--color-panel-bg);
    border: 2px solid #ffd700;
    border-radius: 15px;
    padding: 8px 15px;
    font-size: 18px;
    font-weight: bold;
    color: var(--color-text);
}

.shop-item-price-icon {
    font-size: 20px;
    color: #ffd700;
}

.shop-item-price-icon i {
    color: #ffd700;
}

.shop-item.owned .shop-item-price {
    background: var(--color-scrollbar-track);
    border-color: var(--color-text-secondary);
}

.equip-button {
    background: var(--color-panel-bg);
    border: 3px solid var(--color-button-border);
    border-radius: 15px;
    padding: 8px 15px;
    font-family: inherit;
    font-size: 14px;
    font-weight: bold;
    color: var(--color-text);
    cursor: pointer;
    transition: all 0.2s;
}

.equip-button:hover {
    background: var(--color-scrollbar-track);
    transform: scale(1.05);
}

.equip-button.equipped {
    background: var(--color-toggle-bg);
    border-color: var(--color-toggle-bg);
    color: var(--color-panel-bg);
}

.equip-button.equipped:hover {
    opacity: 0.9;
}

.shop-item-owned {
    background: var(--color-scrollbar-track);
    border: 3px solid var(--color-toggle-bg);
    border-radius: 15px;
    padding: 8px 15px;
    font-family: inherit;
    font-size: 14px;
    font-weight: bold;
    color: var(--color-toggle-bg);
}

/* Settings Panel */
.settings-panel {
    background: var(--color-panel-bg);
    border: 4px solid var(--color-button-border);
    border-radius: 30px;
    padding: 40px;
    min-width: 500px;
    max-width: 90vw;
    max-height: 90vh;
    overflow-y: scroll;
    overflow-x: hidden;
    overscroll-behavior: none;
    -webkit-overflow-scrolling: auto;
    box-shadow: 0 10px 40px rgba(255, 105, 180, 0.3);
    position: relative;
    display: flex;
    flex-direction: column;
    gap: 25px;
}

.settings-panel::-webkit-scrollbar {
    width: 12px;
}

.settings-panel::-webkit-scrollbar-track {
    background: var(--color-scrollbar-track);
    border-radius: 10px;
    margin: 20px 0;
}

.settings-panel::-webkit-scrollbar-thumb {
    background: var(--color-scrollbar-thumb);
    border-radius: 10px;
    border: 2px solid var(--color-scrollbar-track);
}

.settings-panel::-webkit-scrollbar-thumb:hover {
    background: var(--color-button-text);
}

.settings-content {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.setting-item {
    background: var(--color-scrollbar-track);
    border: 3px solid var(--color-button-border);
    border-radius: 20px;
    padding: 20px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 20px;
}

.setting-info {
    flex: 1;
}

.setting-label {
    font-size: 18px;
    font-weight: bold;
    color: var(--color-text);
    margin-bottom: 5px;
}

.setting-description {
    font-size: 14px;
    color: var(--color-text-secondary);
}

/* Toggle Switch */
.toggle-switch {
    position: relative;
    display: inline-block;
    width: 60px;
    height: 34px;
    flex-shrink: 0;
}

.toggle-switch input {
    opacity: 0;
    width: 0;
    height: 0;
}

.toggle-slider {
    position: absolute;
    cursor: pointer;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-color: #ddd;
    border: 3px solid #ccc;
    border-radius: 34px;
    transition: 0.3s;
}

.toggle-slider:before {
    position: absolute;
    content: "";
    height: 22px;
    width: 22px;
    left: 3px;
    bottom: 3px;
    background-color: white;
    border-radius: 50%;
    transition: 0.3s;
}

input:checked + .toggle-slider {
    background-color: var(--color-toggle-bg);
    border-color: var(--color-toggle-bg);
}

input:checked + .toggle-slider:before {
    transform: translateX(26px);
}

.toggle-slider:hover {
    box-shadow: 0 0 8px rgba(0, 0, 0, 0.2);
}

/* Settings Divider */
.settings-divider {
    height: 2px;
    background: linear-gradient(to right, transparent, var(--color-button-border), transparent);
    margin: 10px 0;
}

/* Danger Section */
.settings-danger-section {
    margin-top: 30px;
    padding-top: 20px;
    border-top: 3px solid #ff4444;
}

.danger-section-title {
    font-size: 18px;
    font-weight: bold;
    color: #ff4444;
    margin-bottom: 15px;
}

.danger-item {
    background: rgba(255, 68, 68, 0.1);
    border: 3px solid #ff4444;
    border-radius: 20px;
    padding: 20px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 20px;
}

.danger-button {
    background: #ff4444;
    color: white;
    border: none;
    border-radius: 15px;
    padding: 12px 24px;
    font-family: inherit;
    font-size: 16px;
    font-weight: bold;
    cursor: pointer;
    transition: all 0.2s;
    flex-shrink: 0;
}

.danger-button:hover {
    background: #cc0000;
    transform: scale(1.05);
}

.danger-button:active {
    transform: scale(0.95);
}

/* Theme Selector */
.setting-item-full {
    background: var(--color-scrollbar-track);
    border: 3px solid var(--color-button-border);
    border-radius: 20px;
    padding: 20px;
    display: flex;
    flex-direction: column;
    gap: 15px;
}

.theme-selector {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(120px, 1fr));
    gap: 15px;
}

.theme-option {
    background: var(--color-scrollbar-track);
    border: 3px solid var(--color-button-border);
    border-radius: 20px;
    padding: 20px;
    cursor: pointer;
    transition: all 0.2s;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 12px;
}

.theme-option:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 20px rgba(0, 0, 0, 0.2);
}

.theme-option.selected {
    border-color: var(--color-toggle-bg);
    background: var(--color-scrollbar-track);
}

.theme-option.locked {
    opacity: 0.6;
    cursor: not-allowed;
}

.theme-option.locked:hover {
    transform: none;
    box-shadow: none;
}

.theme-preview {
    width: 100%;
    height: 80px;
    border-radius: 15px;
    border: 2px solid rgba(0, 0, 0, 0.1);
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
}

.theme-lock-icon {
    position: absolute;
    font-size: 24px;
    color: #c71585;
    filter: drop-shadow(0 2px 4px rgba(0, 0, 0, 0.3));
}

.theme-name {
    font-size: 12px;
    font-weight: bold;
    color: var(--color-text);
    text-align: center;
}

.theme-price {
    font-size: 12px;
    font-weight: bold;
    color: #ffd700;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 5px;
}

.theme-price i {
    color: #ffd700;
    font-size: 14px;
}

/* Background options */
.background-option {
    background: var(--color-scrollbar-track);
    border: 3px solid var(--color-button-border);
    border-radius: 20px;
    padding: 20px;
    cursor: pointer;
    transition: all 0.2s;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 12px;
}

.background-option:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 20px rgba(0, 0, 0, 0.2);
}

.background-option.selected {
    border-color: var(--color-toggle-bg);
    background: var(--color-scrollbar-track);
}

.background-option.locked {
    opacity: 0.6;
    cursor: not-allowed;
}

.background-option.locked:hover {
    transform: none;
    box-shadow: none;
}

.background-preview {
    width: 100%;
    height: 80px;
    border-radius: 15px;
    border: 2px solid rgba(0, 0, 0, 0.1);
    position: relative;
    background-size: cover;
    background-position: center;
    display: flex;
    align-items: center;
    justify-content: center;
}

.background-lock-icon {
    position: absolute;
    font-size: 24px;
    color: #c71585;
    filter: drop-shadow(0 2px 4px rgba(0, 0, 0, 0.3));
}

.background-name {
    font-size: 12px;
    font-weight: bold;
    color: var(--color-text);
    text-align: center;
}

.background-price {
    font-size: 12px;
    font-weight: bold;
    color: #ffd700;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 5px;
}

.background-price i {
    color: #ffd700;
    font-size: 14px;
}