@import url('https://fonts.googleapis.com/css2?family=Nunito:wght@400;700;800&display=swap');

:root {
    --bg-sky: #e3f2fd;
    --bg-card: #ffffff;
    --text-dark: #37474f;
    --text-light: #78909c;
    --accent-yellow: #ffc107;
    --accent-green: #4caf50;
    --accent-pink: #f06292;
    --accent-blue: #2196f3;
    --border-soft: #eceff1;
    --shadow-soft: rgba(0, 0, 0, 0.08);
}

*, *::before, *::after {
    box-sizing: border-box;
}

body {
    font-family: 'Nunito', 'Noto Sans SC', sans-serif;
    background-color: var(--bg-sky);
    color: var(--text-dark);
    margin: 0;
    padding: 24px;
}

#app {
    max-width: 1200px;
    margin: 0 auto;
}

#app.hidden {
    display: none;
}

#auth-container {
    display: flex;
    justify-content: center;
    align-items: center;
    height: 100vh;
}

.auth-form {
    background: var(--bg-card);
    padding: 32px;
    border-radius: 24px;
    box-shadow: 0 8px 30px var(--shadow-soft);
    text-align: center;
    width: 100%;
    max-width: 400px;
}

.auth-form h2 {
    margin-top: 0;
}

.auth-form p {
    color: var(--text-light);
    margin-bottom: 24px;
}

.auth-form input {
    width: 100%;
    padding: 12px;
    margin-bottom: 16px;
    border-radius: 8px;
    border: 1px solid var(--border-soft);
    font-size: 1rem;
}

.auth-buttons {
    display: flex;
    gap: 16px;
}

.auth-buttons button {
    flex: 1;
    padding: 12px;
    border-radius: 8px;
    border: none;
    font-weight: 700;
    cursor: pointer;
}

#login-button {
    background-color: var(--accent-blue);
    color: white;
}

#register-button {
    background-color: var(--border-soft);
}

.error-message {
    color: var(--accent-pink);
    margin-top: 16px;
    height: 20px;
}

.header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 32px;
}

.header h1 {
    font-size: clamp(2rem, 5vw, 3rem);
    font-weight: 800;
    text-align: left;
    color: var(--text-dark);
    margin: 0;
}

.header-buttons {
    display: flex;
    gap: 16px;
    align-items: center;
}

#user-display {
    font-weight: 700;
}

#rules-button, #stats-button, #logout-button {
    background-color: var(--accent-blue);
    color: white;
    border: none;
    border-radius: 12px;
    padding: 8px 16px;
    font-size: 0.9rem;
    font-weight: 700;
    cursor: pointer;
    transition: all 0.2s ease;
}

#logout-button {
    background-color: var(--accent-pink);
}

#rules-button:hover, #stats-button:hover, #logout-button:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.2);
}

.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.5);
    display: flex;
    justify-content: center;
    align-items: center;
    opacity: 0;
    visibility: hidden;
    transition: all 0.3s ease;
    z-index: 100;
}

.modal-overlay.visible {
    opacity: 1;
    visibility: visible;
}

.modal-content {
    background: var(--bg-card);
    border-radius: 24px;
    padding: 32px;
    width: 90%;
    max-width: 600px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
    transform: scale(0.9);
    transition: all 0.3s ease;
    position: relative;
}

.modal-overlay.visible .modal-content {
    transform: scale(1);
}

.modal-content h2 {
    margin-top: 0;
    text-align: left;
}

.modal-content ul {
    list-style-position: inside;
    padding-left: 0;
}

#close-modal-button, #close-stats-modal-button {
    position: absolute;
    top: 16px;
    right: 16px;
    background: var(--border-soft);
    border: none;
    width: 32px;
    height: 32px;
    border-radius: 50%;
    font-size: 1.5rem;
    line-height: 1;
    cursor: pointer;
    color: var(--text-light);
}

.stats-controls {
    display: flex;
    justify-content: center;
    gap: 16px;
    margin-bottom: 24px;
}

.stats-period-button {
    background-color: var(--border-soft);
    color: var(--text-light);
    border: none;
    padding: 8px 16px;
    border-radius: 8px;
    cursor: pointer;
    font-weight: 700;
}

.stats-period-button.active {
    background-color: var(--accent-pink);
    color: white;
}

#stats-display {
    display: flex;
    flex-direction: column;
    gap: 20px;
}


.stat-item {
    margin-bottom: 16px;
}

.stat-item .label {
    display: flex;
    justify-content: space-between;
    align-items: baseline;
    margin-bottom: 8px;
    font-weight: 700;
}

.stat-item .label .task-name {
    font-size: 1.1rem;
    color: var(--text-dark);
}

.stat-item .label .completion-metrics {
    font-size: 0.9rem;
    color: var(--text-light);
    font-weight: normal;
}

.stat-item .label .percentage {
    font-weight: bold;
    color: var(--accent-blue);
    margin-left: 8px;
}


.stat-bar-bg {
    background-color: var(--border-soft);
    border-radius: 8px;
    height: 16px; /* Slightly thinner */
    overflow: hidden;
}

.stat-bar-fg {
    background: linear-gradient(90deg, var(--accent-blue), var(--accent-pink));
    height: 100%;
    border-radius: 8px;
    width: 0%; /* Will be set by JS */
    transition: width 0.5s ease;
}

.weekly-adventure {
    display: flex;
    flex-direction: column;
    gap: 32px;
}

main {
    flex: 1;
}

.calendar-path {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 24px;
}

.day {
    background: var(--bg-card);
    border: 2px solid var(--border-soft);
    border-radius: 24px;
    padding: 24px;
    box-shadow: 0 4px 12px var(--shadow-soft);
    transition: all 0.3s ease;
}

.day.today {
    border-color: var(--accent-yellow);
    box-shadow: 0 8px 25px rgba(255, 193, 7, 0.2);
    transform: scale(1.03);
}

.day.disabled {
    opacity: 0.7;
    filter: grayscale(50%);
    pointer-events: none; /* Disables all clicks on the card */
    box-shadow: none;
    transform: none;
}

.day.disabled .task-item label {
    cursor: not-allowed;
}

.day-header {
    font-size: 1.5rem;
    font-weight: 700;
    text-align: center;
    margin-bottom: 24px;
}
.day-header span {
    font-size: 1rem;
    color: var(--text-light);
    margin-left: 8px;
}

.daily-surprise {
    background-color: #fffbe6;
    color: #f57f17;
    border: 2px dashed var(--accent-yellow);
    border-radius: 16px;
    padding: 0 16px;
    margin-top: 24px;
    text-align: center;
    font-weight: 700;
    font-size: 0.9rem;
    
    /* Animation setup */
    transform: scale(0.9) rotate(-2deg);
    opacity: 0;
    height: 0;
    overflow: hidden;
    transition: all 0.4s cubic-bezier(0.68, -0.6, 0.32, 1.6);
}

.daily-surprise.visible {
    transform: scale(1) rotate(0deg);
    opacity: 1;
    height: auto;
    padding: 16px;
}

.task-item label {
    display: flex;
    align-items: center;
    padding: 12px;
    margin-bottom: 12px;
    border-radius: 16px;
    cursor: pointer;
    transition: background-color 0.2s ease;
}
.task-item label:hover {
    background-color: #f5f5f5;
}

.task-item label.focus-task {
    font-weight: 700;
    color: var(--accent-blue);
}

input[type="checkbox"] {
    -webkit-appearance: none; appearance: none;
    width: 28px; height: 28px;
    border-radius: 50%;
    border: 2px solid var(--border-soft);
    margin-right: 16px;
    cursor: pointer;
    position: relative;
    transition: all 0.2s cubic-bezier(0.34, 1.56, 0.64, 1);
}
input[type="checkbox"]:checked {
    transform: scale(1.1);
    background: var(--accent-green);
    border-color: var(--accent-green);
}
input[type="checkbox"]:checked::after {
    content: '⭐';
    font-size: 16px;
    position: absolute;
    top: 50%; left: 50%;
    transform: translate(-50%, -50%);
}

aside {
    position: sticky;
    top: 24px;
}

.dashboard-card {
    background: var(--bg-card);
    border-radius: 24px;
    padding: 24px;
    margin-bottom: 24px;
    border: 2px solid var(--border-soft);
    box-shadow: 0 4px 12px var(--shadow-soft);
}

.dashboard-card h2 {
    font-size: 1.5rem;
    font-weight: 700;
    margin: 0 0 16px 0;
    text-align: center;
}

.score-board #total-score {
    font-size: 4rem;
    font-weight: 800;
    text-align: center;
    color: var(--accent-pink);
    display: block;
}

.reward-tier {
    text-align: center;
    padding: 16px;
    opacity: 0.4;
    transition: all 0.4s ease;
    border-radius: 16px; /* Add border radius */
}

.reward-tier.active {
    opacity: 1;
    transform: scale(1.05);
    background: #fff;
    border: 1px solid var(--border-soft);
}

.reward-tier .trophy { font-size: 3rem; }

.reward-tier h3 {
    font-size: 1.2rem;
    margin: 8px 0;
    cursor: pointer;
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 8px;
}

.reward-tier h3::after {
    content: '▼';
    font-size: 0.8rem;
    display: inline-block;
    transition: transform 0.3s ease;
}

.reward-tier.expanded h3::after {
    transform: rotate(180deg);
}

.reward-tier ul {
    list-style: none;
    padding: 0;
    margin: 0;
    display: flex;
    flex-direction: column;
    gap: 12px;
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.4s ease, margin-top 0.4s ease;
}

.reward-tier.expanded ul {
    max-height: 500px;
    margin-top: 16px;
}

.reward-tier li {
   background: #f9f9f9;
   border: 1px solid var(--border-soft);
   border-radius: 12px;
   padding: 12px;
   text-align: left;
   transition: all 0.2s ease;
}

.reward-tier li:hover {
    transform: translateY(-2px);
    border-color: var(--accent-pink);
}

.reward-tier li strong {
    display: block;
    color: var(--text-dark);
}

.reward-tier li span {
    font-size: 0.9rem;
    color: var(--text-light);
}

/* Styling for sidebar control buttons */
.dashboard-card.controls button {
    width: 100%;
    color: white;
    border: none;
    padding: 16px;
    border-radius: 16px;
    cursor: pointer;
    font-size: 1rem;
    font-weight: 700;
    transition: all 0.2s;
    margin-top: 8px;
}

#reset-button, #export-button {
    background: var(--accent-pink);
}

#import-button {
    background-color: var(--accent-blue);
}

.dashboard-card.controls button:hover {
    transform: translateY(-2px);
}

#reset-button:hover, #export-button:hover {
    box-shadow: 0 6px 12px rgba(240, 98, 146, 0.3);
}

#import-button:hover {
     box-shadow: 0 6px 12px rgba(33, 150, 243, 0.3);
}

.hidden {
    display: none;
}


@media (min-width: 992px) {
    .weekly-adventure {
        flex-direction: row;
        align-items: flex-start;
    }
    aside {
        width: 350px;
        flex-shrink: 0;
    }
}

footer {
    text-align: center;
    margin-top: 48px;
    padding: 24px;
    font-size: 0.9rem;
    color: var(--text-light);
}