/* Global variables for colors and fonts */
:root {
    --font-primary: 'Montserrat', sans-serif;
    --font-secondary: 'Nunito Sans', sans-serif;

    /* Light Theme */
    --light-bg: #F8F9FA;
    --light-surface: #FFFFFF;
    --light-primary: #76c893; /* Light Pastel Green */
    --light-primary-text: #FFFFFF;
    --light-text: #212529;
    --light-text-secondary: #6C757D;
    --light-border: #E9ECEF;
    --light-success: #60a579;
    --light-danger: #e53e3e; /* Red for danger state */
    --light-shadow: 0 4px 12px rgba(0, 0, 0, 0.08);

    /* Dark Theme */
    --dark-bg: #121212;
    --dark-surface: #1E1E1E;
    --dark-primary: #52b788; /* Dark Pastel Green */
    --dark-primary-text: #121212;
    --dark-text: #E0E0E0;
    --dark-text-secondary: #A0A0A0;
    --dark-border: #333333;
    --dark-success: #52b788;
    --dark-danger: #f76f72; /* Lighter red for dark mode */
    --dark-shadow: 0 4px 12px rgba(0, 0, 0, 0.2);
}

/* Color assignment based on theme */
body {
    background-color: var(--light-bg);
    color: var(--light-text);
    transition: background-color 0.3s, color 0.3s;
}
body.dark {
    background-color: var(--dark-bg);
    color: var(--dark-text);
}

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

html, body {
    height: 100%;
    font-family: var(--font-secondary);
}

#app-container {
    display: flex;
    flex-direction: column;
    height: 100%;
    max-width: 480px;
    margin: 0 auto;
    background-color: var(--light-surface);
    box-shadow: var(--light-shadow);
    position: relative;
    overflow: hidden;
}

body.dark #app-container {
    background-color: var(--dark-surface);
    box-shadow: var(--dark-shadow);
}

/* Header */
#main-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem;
    border-bottom: 1px solid var(--light-border);
    flex-shrink: 0;
}
body.dark #main-header {
    border-bottom-color: var(--dark-border);
}

/* --- START: KORREKTER CODE --- */

/* Der gemeinsame Container für Streak und Coins */
.stats-group {
    display: flex;
    align-items: center;
    background-color: var(--light-bg);
    border: 1px solid var(--light-border);
    border-radius: 20px; /* Die äußere Umrandung */
    overflow: hidden; /* Stellt sicher, dass die Ecken rund sind */
    transition: background-color 0.3s, border-color 0.3s;
}

/* Die einzelnen Anzeigen (Streak, Coins) INNERHALB der Gruppe */
.streak-display,
.coin-display {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.4rem 0.8rem;
    font-family: var(--font-primary);
    font-weight: 700;
    font-size: 1.1rem;
}

/* Eine feine Trennlinie zwischen den beiden Anzeigen */
.coin-display {
    border-left: 1px solid var(--light-border);
    transition: border-color 0.3s;
}

/* Dark-Mode-Anpassungen für die neue Gruppe */
body.dark .stats-group {
    background-color: var(--dark-bg);
    border-color: var(--dark-border);
}

body.dark .coin-display {
    border-left-color: var(--dark-border);
}

/* Styling für die Streak-Zahl basierend auf Zustand */
#streak-count.active-streak {
    color: #fca311; /* Gold-orangene Farbe für "heute erledigt" */
}
#streak-count.streak-in-danger {
    color: var(--light-danger); /* Rote Farbe für "heute noch offen" */
}
body.dark #streak-count.streak-in-danger {
    color: var(--dark-danger);
}

/* --- ENDE: KORREKTER CODE --- */

.app-title {
    font-family: var(--font-primary);
    font-weight: 700;
    font-size: 1.5rem;
}

.header-controls {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.icon-button {
    background: none;
    border: none;
    font-size: 1.5rem;
    cursor: pointer;
    color: var(--light-text);
}
body.dark .icon-button {
    color: var(--dark-text);
}


/* Anpassungen für den Dark Mode */
body.dark .streak-display,
body.dark .coin-display {
    background-color: var(--dark-bg);
    border-color: var(--dark-border);
}

/* Main Content */
#main-content {
    flex-grow: 1;
    padding: 0; /* Changed for forest screen */
    overflow-y: auto;
    display: flex;
    flex-direction: column;
    position: relative;
}

/* Navigation */
#bottom-nav {
    display: flex;
    justify-content: space-around;
    padding: 0.5rem 0;
    border-top: 1px solid var(--light-border);
    background-color: var(--light-surface);
    flex-shrink: 0;
}
body.dark #bottom-nav {
    border-top-color: var(--dark-border);
    background-color: var(--dark-surface);
}
.nav-button {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 4px;
    background: none;
    border: none;
    font-size: 1.5rem;
    color: var(--light-text-secondary);
    cursor: pointer;
    padding: 8px 12px;
    border-radius: 8px;
    transition: color 0.2s, background-color 0.2s;
}
.nav-button .nav-text {
    font-size: 0.75rem;
    font-family: var(--font-primary);
}
.nav-button.active {
    color: var(--light-primary);
}
body.dark .nav-button {
    color: var(--dark-text-secondary);
}
body.dark .nav-button.active {
    color: var(--dark-primary);
}

/* Focus Screen */
.focus-screen {
    padding: 1.5rem;
    text-align: center;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    flex-grow: 1;
    gap: 1.5rem;
}
.timer-mode-selector { margin-bottom: 1rem; }
.mode-button {
    padding: 0.75rem 1.5rem;
    border: 1px solid var(--light-border);
    background-color: transparent;
    color: var(--light-text-secondary);
    cursor: pointer;
    font-size: 1rem;
    border-radius: 2rem;
    margin: 0 0.5rem;
    transition: all 0.2s ease;
}
.mode-button.active {
    background-color: var(--light-primary);
    color: var(--light-primary-text);
    border-color: var(--light-primary);
}
body.dark .mode-button {
    border-color: var(--dark-border);
    color: var(--dark-text-secondary);
}
body.dark .mode-button.active {
    background-color: var(--dark-primary);
    color: var(--dark-primary-text);
    border-color: var(--dark-primary);
}
.timer-display {
    font-size: 5rem;
    font-weight: 700;
    font-family: var(--font-primary);
    margin: 1rem 0;
}
.motivational-quote {
    font-size: 1rem;
    color: var(--light-text-secondary);
    min-height: 20px;
    font-style: italic;
}
body.dark .motivational-quote {
    color: var(--dark-text-secondary);
}

.pomodoro-options { display: flex; justify-content: center; gap: 1rem; }
.time-option {
    padding: 0.5rem 1rem;
    border: 1px solid var(--light-border);
    border-radius: 8px;
    cursor: pointer;
    transition: all 0.2s ease;
}
body.dark .time-option { border-color: var(--dark-border); }
.time-option.selected {
    background-color: var(--light-primary);
    color: var(--light-primary-text);
    border-color: var(--light-primary);
}
body.dark .time-option.selected {
    background-color: var(--dark-primary);
    color: var(--dark-primary-text);
    border-color: var(--dark-primary);
}

.start-stop-button {
    padding: 1rem 3rem;
    font-size: 1.25rem;
    border-radius: 2rem;
    border: none;
    cursor: pointer;
    background-color: var(--light-success);
    color: white;
    font-family: var(--font-primary);
    font-weight: 600;
    transition: background-color 0.2s ease;
}
body.dark .start-stop-button { background-color: var(--dark-success); }

/* Forest Screen */
.forest-screen {
    position: relative;
    width: 100%;
    height: 100%;
    flex-grow: 1;
}
.planted-emoji { position: absolute; font-size: 2.5rem; animation: grow 0.5s ease-out; }
@keyframes grow { from { transform: scale(0); } to { transform: scale(1); } }

#plant-next-widget {
    position: absolute;
    bottom: 1rem;
    left: 1rem;
    right: 1rem;
    background-color: var(--light-surface);
    border: 1px solid var(--light-border);
    padding: 1rem;
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
    font-family: var(--font-primary);
    border-radius: 16px; /* Rounded corners */
    box-shadow: var(--light-shadow);
    cursor: pointer;
    transition: transform 0.2s ease, box-shadow 0.2s ease;
}
#plant-next-widget:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 16px rgba(0, 0, 0, 0.1);
}
body.dark #plant-next-widget {
    background-color: var(--dark-surface);
    border-color: var(--dark-border);
    box-shadow: var(--dark-shadow);
}
body.dark #plant-next-widget:hover {
    box-shadow: 0 6px 16px rgba(0, 0, 0, 0.25);
}
.widget-header {
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--light-text-secondary);
}
body.dark .widget-header { color: var(--dark-text-secondary); }

.widget-body {
    display: flex;
    align-items: center;
    gap: 1rem;
}
.widget-emoji {
    font-size: 3.5rem;
    line-height: 1;
}
.widget-details {
    flex-grow: 1;
}
.widget-name {
    font-size: 1.25rem;
    font-weight: 700;
}
.widget-count {
    font-size: 0.9rem;
    color: var(--light-text-secondary);
}
body.dark .widget-count { color: var(--dark-text-secondary); }

.widget-change-indicator {
    font-size: 1.5rem;
    color: var(--light-text-secondary);
}
body.dark .widget-change-indicator { color: var(--dark-text-secondary); }


/* Shop Screen */
.shop-grid {
    padding: 1.5rem;
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(100px, 1fr));
    gap: 1rem;
}
.shop-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 1rem;
    border: 1px solid var(--light-border);
    background-color: var(--light-surface);
    border-radius: 12px;
    text-align: center;
}
body.dark .shop-item {
    border-color: var(--dark-border);
    background-color: var(--dark-surface);
}
.shop-item-emoji { font-size: 3rem; margin-bottom: 0.5rem; }
.shop-item-price { font-weight: 600; }
.buy-button {
    background-color: var(--light-primary);
    color: var(--light-primary-text);
    border: none;
    padding: 0.5rem 1rem;
    border-radius: 8px;
    cursor: pointer;
    margin-top: 0.5rem;
    font-size: 0.9rem;
    transition: background-color 0.2s ease;
}
.buy-button:disabled {
    background-color: var(--light-text-secondary);
    cursor: not-allowed;
}
body.dark .buy-button { background-color: var(--dark-primary); color: var(--dark-primary-text); }
body.dark .buy-button:disabled { background-color: var(--dark-text-secondary); }


/* Statistics Screen */
.stats-container { padding: 1.5rem; display: flex; flex-direction: column; gap: 1.5rem; }
.stat-card {
    padding: 1rem;
    border-radius: 12px;
    background-color: var(--light-surface);
    border: 1px solid var(--light-border);
}
body.dark .stat-card {
    background-color: var(--dark-surface);
    border-color: var(--dark-border);
}
.stat-card h3 { margin-bottom: 1rem; font-family: var(--font-primary); }
.stat-row { display: flex; justify-content: space-between; align-items: center; font-size: 1.1rem; margin-top: 1rem; }
.stat-row:first-child { margin-top: 0; } /* Kein oberer Abstand für die erste Zeile */
.stat-value { font-weight: 700; font-size: 1.5rem; color: var(--light-primary); }
body.dark .stat-value { color: var(--dark-primary); }

/* --- START: NEUER CODE FÜR WOCHEN-CHART --- */
.weekly-chart-wrapper {
    display: flex;
    gap: 10px;
    align-items: flex-end;
    height: 200px;
}
.y-axis {
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    height: 100%;
    padding-bottom: 20px; /* Match chart-container padding */
    text-align: right;
    font-size: 0.75rem;
    color: var(--light-text-secondary);
    width: 25px; /* Feste Breite für die Achse */
    flex-shrink: 0;
}
body.dark .y-axis {
    color: var(--dark-text-secondary);
}
.chart-container {
    flex-grow: 1;
    width: 100%;
    height: 100%;
    display: flex;
    justify-content: space-around;
    align-items: flex-end;
    gap: 5px;
    padding-bottom: 20px;
    position: relative;
}
/* --- ENDE: NEUER CODE FÜR WOCHEN-CHART --- */

.chart-bar { width: 12%; background-color: var(--light-primary); border-radius: 4px 4px 0 0; position: relative; }
body.dark .chart-bar { background-color: var(--dark-primary); }
.chart-bar .bar-label { position: absolute; bottom: -20px; left: 50%; transform: translateX(-50%); font-size: 0.75rem; }

.heatmap-wrapper {
    overflow-x: auto;
    padding-bottom: 10px;
}
.heatmap-container {
    display: grid;
    grid-template-rows: repeat(7, 1fr);
    grid-auto-flow: column;
    gap: 3px;
    width: max-content;
}
.heatmap-day { width: 12px; height: 12px; background-color: var(--light-border); border-radius: 2px; }

/* --- START: NEUE HEATMAP FARBEN --- */
/* Light Theme Heatmap Colors (hell nach intensiv) */
.heatmap-day[data-level="1"] { background-color: #d8f3dc; }
.heatmap-day[data-level="2"] { background-color: #b7e4c7; }
.heatmap-day[data-level="3"] { background-color: #90d2af; }
.heatmap-day[data-level="4"] { background-color: #76c893; }

/* Dark Theme Heatmap Colors (dunkel nach hell/intensiv) */
body.dark .heatmap-day { background-color: #222; }
body.dark .heatmap-day[data-level="1"] { background-color: #1b4332; }
body.dark .heatmap-day[data-level="2"] { background-color: #2d6a4f; }
body.dark .heatmap-day[data-level="3"] { background-color: #40916c; }
body.dark .heatmap-day[data-level="4"] { background-color: #52b788; }
/* --- ENDE: NEUE HEATMAP FARBEN --- */


/* Bottom Sheet (Modal) Styles */
.bottom-sheet-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.4);
    display: flex;
    justify-content: center;
    align-items: flex-end;
    z-index: 1000;
    opacity: 1;
    transition: opacity 0.3s ease-in-out;
}
.bottom-sheet-content {
    background-color: var(--light-surface);
    padding: 1rem 2rem 2rem 2rem;
    border-radius: 16px 16px 0 0;
    width: 100%;
    max-width: 480px;
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
    transform: translateY(0);
    transition: transform 0.3s ease-in-out;
}
body.dark .bottom-sheet-content {
    background-color: var(--dark-surface);
}

.bottom-sheet-overlay.hidden {
    opacity: 0;
    pointer-events: none;
}
.bottom-sheet-overlay.hidden .bottom-sheet-content {
    transform: translateY(100%);
}

.sheet-handle {
    width: 40px;
    height: 4px;
    background-color: var(--light-border);
    border-radius: 2px;
    margin: 0 auto 1rem;
}
body.dark .sheet-handle {
    background-color: var(--dark-border);
}

.bottom-sheet-content h2 { text-align: center; }
.setting-row { display: flex; justify-content: space-between; align-items: center; }

#language-select {
    padding: 0.5rem;
    border-radius: 8px;
    border: 1px solid var(--light-border);
    background-color: var(--light-surface);
}
body.dark #language-select {
    border-color: var(--dark-border);
    background-color: var(--dark-surface);
    color: var(--dark-text);
}

#close-settings-button {
    padding: 0.75rem;
    background-color: var(--light-primary);
    color: var(--light-primary-text);
    border: none;
    border-radius: 8px;
    cursor: pointer;
    font-size: 1rem;
    font-weight: 600;
}
body.dark #close-settings-button {
    background-color: var(--dark-primary);
    color: var(--dark-primary-text);
}

/* Emoji Selection Grid */
#emoji-grid-container {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(60px, 1fr));
    gap: 1rem;
    max-height: 40vh;
    overflow-y: auto;
}
.emoji-selection-item {
    display: flex;
    justify-content: center;
    align-items: center;
    font-size: 2.5rem;
    padding: 0.5rem;
    border-radius: 12px;
    cursor: pointer;
    border: 2px solid transparent;
    transition: background-color 0.2s, border-color 0.2s;
}
.emoji-selection-item:hover {
    background-color: var(--light-bg);
}
body.dark .emoji-selection-item:hover {
    background-color: var(--dark-bg);
}
.emoji-selection-item.selected {
    border-color: var(--light-primary);
}
body.dark .emoji-selection-item.selected {
    border-color: var(--dark-primary);
}


/* Toggle Switch for Theme */
.toggle-switch {
    position: relative;
    display: inline-block;
    width: 50px;
    height: 28px;
}
.toggle-switch input {
    opacity: 0;
    width: 0;
    height: 0;
}
.toggle-switch label {
    position: absolute;
    cursor: pointer;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-color: #ccc;
    transition: .4s;
    border-radius: 34px;
}
.toggle-switch label:before {
    position: absolute;
    content: "";
    height: 20px;
    width: 20px;
    left: 4px;
    bottom: 4px;
    background-color: white;
    transition: .4s;
    border-radius: 50%;
}
input:checked + label {
    background-color: var(--dark-primary);
}
input:checked + label:before {
    transform: translateX(22px);
}