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

:root {
    /* New "Brain Power" Engaging Color Palette */
    --brand-primary: #0077cc;        /* Strong, professional blue for headers & buttons */
    --brand-primary-dark: #005fa3;  /* Darker blue for hover states */
    --brand-primary-light: #52a8e8; /* Lighter blue for accents */
    --body-bg-start: #eaf2fa;        /* Start of the background gradient (light blue) */
    --body-bg-end: #d9e7f8;          /* End of the background gradient (deeper light blue) */
    --surface-color: #ffffff;       /* Clean white for tool card content areas */
    --text-color: #333333;          /* Dark grey for readable text */
    --text-color-light: #555555;     /* Lighter text for secondary info */
    --border-color: #d1d9e4;        /* A soft, coordinating grey-blue for borders */
    
    /* Accent Colors for UI states */
    --accent-red: #e63946;
    --accent-green: #2a9d8f;
    --accent-orange: #fca311;
    
    /* Team Colors (unchanged, but noted for consistency) */
    --team1-color: #0077cc;
    --team2-color: #e63946;
    --team3-color: #2a9d8f;
    --team4-color: #fca311;

    --border-radius: 8px;
    --shadow-color: rgba(0, 95, 163, 0.15); /* Shadow based on primary dark blue */
}
body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
    background-color: var(--body-bg-start);
    background-image: linear-gradient(135deg, var(--body-bg-start) 0%, var(--body-bg-end) 100%);
    color: var(--text-color);
    margin: 0;
    display: flex;
    flex-direction: column;
    align-items: center;
}
header {
    position: relative;
    text-align: center;
    margin-bottom: 2em;
    padding: 1em 1em 0 1em;
    width: 100%;
    max-width: 1600px;
}
header h1 {
    color: var(--brand-primary-dark);
    margin: 0;
}
header p {
    color: var(--text-color-light);
}

.back-to-hub-btn {
    /* Positioning */
    position: absolute; /* Position it relative to the header */
    top: 15px;          /* 15px from the top edge of the header */
    left: 15px;         /* 15px from the left edge of the header */
    z-index: 10;        /* Ensure it's on top of other elements if they overlap */

    /* Appearance */
    display: inline-flex; /* Helps align the emoji and text nicely */
    align-items: center;
    gap: 8px;           /* Space between the emoji and the "LABO" text */
    padding: 10px 15px;
    background-color: rgba(21, 96, 235, 0.884); /* Semi-transparent white */
    color: white;
    text-decoration: none; /* Remove the default underline from the link */
    font-size: 1rem;
    font-weight: bold;
    border: 1px solid rgba(255, 255, 255, 0.3);
    border-radius: 8px;
    backdrop-filter: blur(5px); /* Nice glassy effect */
    box-shadow: 0 2px 5px rgba(0, 0, 0, 0.1);

    /* Interactivity */
    transition: background-color 0.2s ease, transform 0.2s ease;
}

.back-to-hub-btn:hover {
    background-color: rgb(76, 120, 240); /* Lighten on hover */
    transform: translateY(-2px); /* Give it a slight lift */
}

.tool-container {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 2em;
    width: 100%;
    max-width: 1600px;
    padding: 1em;
}
.tool-card {
    position: relative;
    background-color: var(--surface-color);
    border-radius: var(--border-radius);
    box-shadow: 0 5px 15px var(--shadow-color);
    border: 1px solid var(--border-color);
    padding: 1.5em;
    display: flex;
    flex-direction: column;
    align-items: center;
}
.tool-card h2 {
    /* This creates the colorful header bar for each module */
    width: calc(100% + 3em);
    margin: -1.5em -1.5em 1.5em -1.5em;
    padding: 0.75em 1.5em;
    background-color: var(--brand-primary);
    color: white;
    border-radius: var(--border-radius) var(--border-radius) 0 0;
    text-align: center;
    font-size: 1.25em;
}

button, .button-like-label {
    background-color: var(--brand-primary);
    color: white;
    border: none;
    padding: 10px 20px;
    border-radius: 5px;
    font-size: 1em;
    cursor: pointer;
    transition: background-color 0.2s, transform 0.1s;
    margin: 5px;
    display: inline-block;
    text-align: center;
}

button:hover, .button-like-label:hover {
    background-color: var(--brand-primary-dark);
}
button:active, .button-like-label:active {
    transform: scale(0.98);
}
button:disabled {
    background-color: #999;
    cursor: not-allowed;
    transform: none;
}

/* --- Random Name Picker --- */
.name-picker-content {
    display: flex;
    flex-direction: column;
    width: 100%;
    flex-grow: 1;
}
.tool-card.fullscreen-mode .name-picker-content {
    flex-direction: row;
    gap: 2em;
    align-items: center;
}
.name-picker-panel {
    display: flex;
    flex-direction: column;
    align-items: center;
    width: 100%;
}
.class-list-manager {
    display: flex;
    width: 90%;
    gap: 10px;
    margin-bottom: 0.5em;
    align-items: center;
}
.class-list-manager select {
    flex-grow: 1;
    padding: 5px;
    border-radius: 5px;
    border: 1px solid var(--border-color);
}
#delete-class-btn {
    padding: 5px 10px;
    background-color: var(--accent-red);
    min-width: auto;
    font-size: 1.2em;
    line-height: 1;
}
#delete-class-btn:hover {
    background-color: #c9302c;
}
.name-picker-controls {
    display: flex;
    gap: 10px;
}
.name-picker-options {
    display: flex;
    align-items: center;
    gap: 5px;
    font-size: 0.9em;
    margin-top: 10px;
}
.hidden {
    display: none !important;
}
#picked-names-container {
    width: 90%;
    margin-top: 1em;
    text-align: left;
}
#picked-names-container h4 {
    margin: 0 0 0.5em 0;
    color: var(--brand-primary-dark);
}
#picked-names-list {
    list-style-type: none;
    padding: 0;
    margin: 0;
    max-height: 100px;
    overflow-y: auto;
    display: flex;
    flex-wrap: wrap;
    gap: 5px;
}
#picked-names-list li {
    background-color: #eaf2fa;
    padding: 2px 8px;
    border-radius: 4px;
    font-size: 0.9em;
}
#name-list {
    width: 90%;
    height: 100px;
    margin-bottom: 1em;
    padding: 10px;
    border: 1px solid var(--border-color);
    border-radius: 5px;
}
.tool-card.fullscreen-mode .name-picker-panel {
    flex-basis: 400px;
    flex-shrink: 0;
    height: 100%;
}
.tool-card.fullscreen-mode #name-list {
    flex-grow: 1;
}
#picked-name {
    font-size: 4.5em;
    font-weight: bold;
    color: var(--brand-primary-dark);
    min-height: 60px;
    text-align: center;
    margin: 1em 0;
    flex-grow: 1;
}
.tool-card.fullscreen-mode #picked-name {
    font-size: 10em;
    flex-grow: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 0;
}

/* Styles for the sequence status when moved to the top in fullscreen mode */
.tool-card.fullscreen-mode #ir-sequence-status {
    position: absolute;
    top: 1.25em;  /* Aligned with the new exit button position */
    right: 9em;  /* Positioned to the left of the exit button */
    color: var(--text-color);
    background-color: rgba(255, 255, 255, 0.8);
    padding: 6px 12px;
    border-radius: 15px;
    font-weight: bold;
    z-index: 11;
    pointer-events: none;
    border: 1px solid var(--border-color);
    box-shadow: 0 2px 4px rgba(0,0,0,0.1);
}

/* Fireworks Animation */
.fireworks-container {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    overflow: hidden;
    z-index: 2000;
}
.firework {
    position: absolute;
    opacity: 0;
    animation: firework-show 2.5s forwards;
}
.firework > .particle {
    position: absolute;
    width: 8px;
    height: 8px;
    border-radius: 50%;
    animation: particle-fly 1.8s ease-out forwards;
    box-shadow: 0 0 5px currentColor, 0 0 10px currentColor;
}
@keyframes firework-show {
    0%, 100% { opacity: 0; }
    30%, 80% { opacity: 1; }
}
@keyframes particle-fly {
    0% {
        transform: translate(0, 0);
        opacity: 1;
    }
    100% {
        transform: var(--transform-end);
        opacity: 0;
    }
}

/* --- Classroom Timer --- */
#timer-display {
    font-size: 4em;
    font-weight: bold;
    margin: 0.5em 0;
    color: var(--brand-primary-dark);
}
.timer-controls button, .preset-timers button {
    min-width: 60px;
    padding: 10px 15px;
}
.preset-timers {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
}
.custom-timer-setter {
    display: flex;
    gap: 5px;
    margin: 10px 0;
    align-items: center;
}
#timer-custom-input {
    width: 80px;
    padding: 8px;
    border-radius: 5px;
    border: 1px solid var(--border-color);
    text-align: center;
    font-size: 1em;
}
#timer-set-custom-btn {
    padding: 8px 15px;
    margin: 0;
}
.timer-layout-container {
    width: 100%;
    display: flex;
    flex-direction: column;
    align-items: center;
    flex-grow: 1;
}
.timer-controls-panel {
    display: flex;
    flex-direction: column;
    align-items: center;
}
.tool-card.fullscreen-mode .timer-layout-container.side-by-side-theme-active {
    flex-direction: row;
    justify-content: center;
    align-items: center;
    gap: 2em;
}
.tool-card.fullscreen-mode .timer-controls-panel {
    flex-shrink: 0;
}
.tool-card.fullscreen-mode .timer-visual-container {
    flex-grow: 1;
    height: 80%;
}
.tool-card.fullscreen-mode #timer-display {
    font-size: 8em;
}
.timer-visual-container {
    width: 100%;
    margin-top: 1em;
    min-height: 200px;
    flex-grow: 1;
    overflow: hidden;
    position: relative;
    display: flex;
    justify-content: center;
    align-items: center;
    border-radius: var(--border-radius);
}
.timer-theme {
    display: none;
    width: 100%;
    height: 100%;
    position: relative;
}
.timer-theme.active {
    display: flex;
    justify-content: center;
    align-items: center;
}

/* Bar Theme */
#timer-progress-bar {
    width: 100%;
    height: 20px;
    background-color: var(--border-color);
    border-radius: 10px;
    overflow: hidden;
    margin-top: 1em;
}
#timer-progress {
    width: 100%;
    height: 100%;
    background-color: var(--accent-green);
    transition: width 0.5s linear;
}

/* Water Bucket Theme */
.bucket-container {
    width: 150px;
    height: 200px;
    margin: 0 auto;
    border: 5px solid #8B4513;
    border-top: none;
    border-radius: 0 0 20px 20px;
    position: relative;
    background-color: #f0e6d2;
    overflow: hidden;
}
.tool-card.fullscreen-mode .bucket-container {
    width: 250px;
    height: 350px;
}
.water {
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: var(--brand-primary-light);
    border-radius: 0 0 15px 15px;
    transition: height 0.5s linear;
}

/* --- Digital Flashcards --- */
#flashcard-display-container {
    width: 90%;
    flex-grow: 1; 
    min-height: 200px;
    margin: 1em 0;
    position: relative; 
    display: flex;
}
#flashcard-display {
    width: 100%;
    height: 100%;
    position: relative;
}
.flashcard-face {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    border: 2px dashed var(--brand-primary-light);
    border-radius: var(--border-radius);
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    font-size: 2.5em;
    font-weight: bold;
    padding: 10px;
    text-align: center;
    opacity: 0;
    transform: scale(0.95);
    transition: opacity 0.3s ease-in-out, transform 0.3s ease-in-out;
}
.flashcard-face.active {
    opacity: 1;
    transform: scale(1);
    z-index: 2;
}
.tool-card.fullscreen-mode #flashcard-display-container {
    height: auto; 
    flex-grow: 1;
    font-size: 1.5em;
}
#flashcard-display img, .whats-missing-card img {
    max-width: 100%;
    max-height: 80%;
    object-fit: contain;
    min-height: 0;
}
.whats-missing-card span {
    font-size: 1em;
}
.flashcard-controls {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 10px;
}
#flashcard-category {
    padding: 5px;
    border-radius: 5px;
    border: 1px solid var(--border-color);
}

.flashcard-nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 10px;
    width: 100%;
}
.tool-card.grid-view-active .flashcard-nav {
    justify-content: flex-end;
}

/* --- Grid View & Flip Animation Styles --- */
.flashcard-nav-single, .flashcard-nav-toggle {
    display: flex;
    gap: 5px;
}
#flashcard-show-all-toggle {
    background-color: var(--accent-green);
}
#flashcard-show-all-toggle:hover {
    background-color: #21867a;
}
#flashcard-grid-view {
    width: 90%;
    flex-grow: 1;
    min-height: 200px;
    margin: 1em 0;
    display: grid;
    gap: 10px;
}
.tool-card.grid-view-active #flashcard-display-container,
.tool-card.grid-view-active .flashcard-nav-single {
    display: none;
}
.tool-card:not(.grid-view-active) #flashcard-grid-view {
    display: none;
}
.tool-card.fullscreen-mode #flashcard-grid-view {
    width: 100%;
    height: 100%;
    padding: 20px;
    margin: 0;
}

/* 3D Flip Card Styles */
.flashcard-grid-item {
    background-color: transparent;
    perspective: 1000px;
    cursor: pointer;
}
.fgi-inner {
    position: relative;
    width: 100%;
    height: 100%;
    transition: transform 0.6s;
    transform-style: preserve-3d;
}
.flashcard-grid-item.is-flipped .fgi-inner {
    transform: rotateY(180deg);
}
.fgi-front, .fgi-back {
    position: absolute;
    width: 100%;
    height: 100%;
    -webkit-backface-visibility: hidden;
    backface-visibility: hidden;
    border-radius: var(--border-radius);
    overflow: hidden;
}
.fgi-front {
    border: 2px solid var(--brand-primary-light);
    background-color: var(--surface-color);
    padding: 8px;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    text-align: center;
}
.fgi-front img {
    max-width: 100%;
    max-height: 75%;
    object-fit: contain;
    margin-bottom: 5px;
    min-height: 0;
}
.fgi-front div {
    font-weight: bold;
    word-break: break-word;
}
.fgi-back {
    background-color: var(--brand-primary);
    transform: rotateY(180deg);
    background-size: cover;
    background-position: center;
    border: 2px solid var(--surface-color);
    box-shadow: inset 0 0 5px rgba(0,0,0,0.2);
}

/* --- Scoreboard Styles --- */
.scoreboard-grid-view {
    width: 100%;
}
.scoreboard-grid-view .scoreboard-teams {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    width: 100%;
    margin-bottom: 1em;
    text-align: center;
    gap: 1.5em;
}
.scoreboard-grid-view .team {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.2em;
    container-type: inline-size;
}
.team-icon {
    width: 60px;
    height: 60px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 40px;
    line-height: 1;
    background-color: #eaf2fa;
    border-radius: 50%;
}
.scoreboard-grid-view .team h3 {
    margin: 0;
    font-size: 1.1em;
    padding: 5px;
    border-radius: 5px;
    width: 100%;
}
.scoreboard-grid-view .team h3:hover,
.scoreboard-grid-view .team h3:focus {
    background-color: #eaf2fa;
    outline: 1px solid var(--brand-primary);
}
.scoreboard-grid-view .team-score {
    font-size: clamp(2.5em, 35cqi, 4em);
    font-weight: bold;
    margin: 0.1em 0;
    line-height: 1;
    margin-top: 0.4em;
}
.scoreboard-grid-view .scoreboard-teams .team:nth-child(1) .team-score { color: var(--team1-color); }
.scoreboard-grid-view .scoreboard-teams .team:nth-child(2) .team-score { color: var(--team2-color); }
.scoreboard-grid-view .scoreboard-teams .team:nth-child(3) .team-score { color: var(--team3-color); }
.scoreboard-grid-view .scoreboard-teams .team:nth-child(4) .team-score { color: var(--team4-color); }

.scoreboard-grid-view .score-controls {
    display: flex;
    gap: 5px;
}
.scoreboard-grid-view .score-controls button {
    width: 45px;
    height: 45px;
    font-size: 1.5em;
    line-height: 1;
    padding: 0;
    margin: 0;
}

#reset-scores {
    background-color: #777;
}
#reset-scores:hover {
    background-color: #666;
}

/* Scoreboard Fullscreen */
.tool-card.fullscreen-mode .scoreboard-grid-view {
    display: none;
}
#scoreboard-fullscreen-container {
    display: flex;
    flex-direction: column;
    width: 100%;
    height: 100%;
    flex: 1; /* ADDED: Makes this container fill the tool-card */
    min-height: 0; /* ADDED: Important for nested flex layouts */
}
#scoreboard-fullscreen-view {
    flex-grow: 1;
    display: grid;
    grid-template-columns: 1fr 1fr;
    grid-template-rows: 1fr 1fr;
    gap: 1em;
    width: 100%;
    padding: 1em;
}
#scoreboard-fullscreen-controls {
    flex-shrink: 0;
    padding: 1em;
    text-align: center;
}
#fs-reset-scores-btn {
    background-color: #777;
    padding: 10px 30px;
    font-size: 1.2em;
}
#fs-reset-scores-btn:hover {
    background-color: #666;
}

.fs-team-card {
    background-color: var(--surface-color);
    border-radius: var(--border-radius);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 1em;
    position: relative;
    box-shadow: 0 4px 10px rgba(0,0,0,0.1);
    overflow: hidden;
    container-type: inline-size;
}
.fs-team-info {
    position: absolute;
    top: 1em;
    left: 1em;
    display: flex;
    align-items: center;
    gap: 0.75em;
    background: rgba(255,255,255,0.8);
    padding: 0.5em 1em;
    border-radius: 25px;
    z-index: 2;
}
.fs-team-icon {
    font-size: clamp(3rem, 15vw, 6.25rem);
    line-height: 1;
}
.fs-team-name {
    font-size: 1.5em;
    font-weight: bold;
}
.fs-team-score {
    width: 100%;
    text-align: center;
    font-weight: bold;
    line-height: 1;
    font-size: clamp(3rem, 45cqi, 18rem);
}
#scoreboard-fullscreen-view .team-1 .fs-team-score { color: var(--team1-color); }
#scoreboard-fullscreen-view .team-2 .fs-team-score { color: var(--team2-color); }
#scoreboard-fullscreen-view .team-3 .fs-team-score { color: var(--team3-color); }
#scoreboard-fullscreen-view .team-4 .fs-team-score { color: var(--team4-color); }

/* Fullscreen Score Buttons */
.fs-score-controls {
    position: absolute;
    bottom: 1em;
    right: 1em;
    display: flex;
    gap: 0.75em;
    z-index: 2;
}
.fs-score-btn {
    width: 60px;
    height: 60px;
    border-radius: 50%;
    border: 2px solid white;
    font-size: 2.5em;
    font-weight: bold;
    color: white;
    cursor: pointer;
    transition: transform 0.2s, box-shadow 0.2s;
    box-shadow: 0 3px 6px rgba(0,0,0,0.2);
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 0;
    margin: 0;
}
.fs-score-btn:hover {
    transform: scale(1.05);
    box-shadow: 0 5px 10px rgba(0,0,0,0.3);
}
.fs-score-btn.plus {
    background-color: var(--accent-green);
}
.fs-score-btn.minus {
    background-color: var(--accent-red);
}

/* --- What's Missing Game --- */
#whats-missing-status {
    font-weight: bold;
    min-height: 24px;
    color: var(--brand-primary-dark);
}
.whats-missing-grid {
    display: grid;
    gap: 10px;
    width: 100%;
    min-height: 200px;
    margin: 1em 0;
    cursor: pointer;
    grid-auto-rows: 1fr;
}
.tool-card.fullscreen-mode .whats-missing-grid {
    flex-grow: 1;
}
.whats-missing-grid.count-4 {
    grid-template-columns: repeat(2, 1fr);
}
.whats-missing-grid.count-6 {
    grid-template-columns: repeat(3, 1fr);
}
.whats-missing-grid.count-9 {
    grid-template-columns: repeat(3, 1fr);
}
.whats-missing-card {
    border: 2px solid var(--brand-primary-light);
    border-radius: var(--border-radius);
    display: flex;
    justify-content: center;
    align-items: center;
    flex-direction: column;
    padding: 10px;
    font-size: 1.2em;
    text-align: center;
    background-color: var(--surface-color);
    transition: opacity 0.5s, background-color 0.5s, transform 0.5s;
    overflow: hidden;
}
.wm-settings {
    display: flex;
    gap: 15px;
    align-items: center;
    flex-wrap: wrap;
    justify-content: center;
    width: 100%;
    margin-bottom: 1em;
}
.whats-missing-card.wm-invisible {
    opacity: 0;
    pointer-events: none;
    transform: scale(0.95); 
}
.whats-missing-card.revealed {
    background-color: var(--accent-orange);
    color: white;
}

/* --- Image Reveal Game --- */
.ir-setup-controls {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    align-items: center;
    gap: 15px;
    margin-bottom: 1em;
    width: 100%;
}
.ir-option, .ir-custom-grid-inputs, .ir-custom-speed-input {
    display: flex;
    align-items: center;
    gap: 5px;
}
.ir-setup-controls select, .ir-setup-controls input {
    padding: 8px;
    border: 1px solid var(--border-color);
    border-radius: 5px;
}
.ir-custom-grid-inputs input, .ir-custom-speed-input input {
    width: 70px;
}
.ir-game-controls {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    align-items: center;
    gap: 10px;
    margin-bottom: 1em;
}
.ir-game-area {
    width: 100%;
    flex-grow: 1;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    min-height: 200px;
}
#ir-image-container {
    position: relative;
    max-width: 100%;
    max-height: 100%;
    margin-bottom: 1em;
}
#ir-image {
    display: block;
    width: 100%;
    height: 100%;
    object-fit: contain;
    visibility: hidden;
}
#ir-grid-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    display: grid;
}
.ir-grid-tile {
    background-color: var(--brand-primary);
    border: 1px solid white;
    transition: opacity 0.4s ease-in-out;
}
.ir-grid-tile.revealed {
    opacity: 0;
    pointer-events: none;
}
#ir-status-bar {
    color: var(--text-color-light);
    font-weight: bold;
    min-height: 1.2em;
    width: 100%;
    display: flex;
    justify-content: space-between;
    align-items: center;
}
#ir-sequence-status {
    color: var(--brand-primary);
}
.tool-card.fullscreen-mode .ir-game-area {
    justify-content: center;
}

/* --- Bingo Picker --- */
.bingo-controls-panel { width: 100%; text-align: center; flex-shrink: 0; margin-bottom: 1em; }
.bingo-source-select { margin-bottom: 0.5em; }
#bingo-list-select { width: 100%; max-width: 400px; padding: 5px; border-radius: 5px; border: 1px solid var(--border-color); }
#bingo-list-input { width: 100%; max-width: 400px; height: 100px; margin-bottom: 1em; padding: 10px; border: 1px solid var(--border-color); border-radius: 5px; }
.bingo-buttons { display: flex; gap: 10px; justify-content: center; }
.bingo-display-area {
    display: flex;
    flex-direction: column;
    gap: 1em;
    width: 100%;
    flex-grow: 1;
    min-height: 0;
}
#bingo-picked-item-display {
    font-size: 2.5em;
    font-weight: bold;
    color: var(--accent-green);
    text-align: center;
    flex-grow: 1;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 0.5em;
    border: 2px dashed var(--border-color);
    border-radius: var(--border-radius);
    padding: 10px;
    min-height: 0; 
}
.bingo-image-wrapper {
    flex-grow: 1;
    position: relative;
    width: 100%;
    min-height: 0; 
}
#bingo-picked-item-display img {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    object-fit: contain; 
}
#bingo-picked-item-display div {
    flex-shrink: 0; 
}
#bingo-picked-container {
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    padding: 1em;
    flex-grow: 1;
    display: flex;
    flex-direction: column;
    min-height: 200px;
}
#bingo-picked-container h4 { margin: 0 0 0.5em 0; color: var(--brand-primary-dark); }
#bingo-picked-list {
    padding: 10px;
    margin: 0;
    overflow-y: auto;
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(100px, 1fr));
    gap: 10px;
    background-color: #eaf2fa;
    border-radius: 5px;
    flex-grow: 1;
}
.bingo-picked-card {
    background-color: var(--surface-color);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    padding: 5px;
    font-size: 0.9em;
    text-align: center;
    word-break: break-word;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 5px;
}
.bingo-picked-card img { height: 60px; max-width: 100%; object-fit: contain; }
.bingo-picked-card span { font-weight: bold; }
@media (min-width: 1200px) {
    .bingo-display-area { flex-direction: row; }
    #bingo-picked-item-display { font-size: 4em; }
}

/* Coin Toss Styles */
.coin-toss-content {
    display: flex;
    flex-direction: column;
    align-items: center;
    width: 100%;
    height: 100%;
    min-height: 500px;
    justify-content: space-between;
    position: relative;
}

.coin-theme-selector {
    margin-bottom: 1em;
    flex-shrink: 0;
}

.coin-theme-selector select {
    padding: 8px;
    border-radius: 5px;
    border: 1px solid var(--border-color);
}

.coin-animation-space {
    flex-grow: 1;
    display: flex;
    justify-content: center;
    align-items: flex-end; /* Start coin at bottom */
    width: 100%;
    min-height: 300px;
    position: relative;
    padding-bottom: 20px; /* Space from bottom */
}

.coin-container {
    perspective: 1000px;
    width: 120px;
    height: 120px;
    position: relative;
    z-index: 2;
    margin-bottom: 20px; /* Space for button */
}

.coin {
    width: 100%;
    height: 100%;
    position: relative;
    transform-style: preserve-3d;
}

.coin-face {
    position: absolute;
    width: 100%;
    height: 100%;
    backface-visibility: hidden;
    border-radius: 50%;
    display: flex;
    justify-content: center;
    align-items: center;
    overflow: hidden;
}

.coin-heads {
    background: radial-gradient(circle at 30% 30%, #f4d342, #d4af37);
    transform: translateZ(4px); /* Pushes face forward */
}

.coin-tails {
    background: radial-gradient(circle at 30% 30%, #f0f0f0, #c0c0c0);
    transform: rotateY(180deg) translateZ(4px); /* Flips face and pushes it forward */
}

.coin-face img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    border-radius: 50%;
}

.coin-text {
    display: none;
    font-size: 2.5em;
    font-weight: bold;
    color: #333;
}

.coin-edge {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    transform-style: preserve-3d;
    transform: rotateX(90deg);
}

.edge-segment {
    position: absolute;
    top: calc(50% - 4px); /* (thickness / 2) */
    left: calc(50% - 9.5px); /* (segment width / 2) */
    width: 19px;
    height: 8px; /* This is the coin's thickness */
    background: linear-gradient(to right, #8B7500, #FFD700, #8B7500);
}

.edge-segment:nth-child(1)  { transform: rotateY(18deg) translateZ(60px); }
.edge-segment:nth-child(2)  { transform: rotateY(36deg) translateZ(60px); }
.edge-segment:nth-child(3)  { transform: rotateY(54deg) translateZ(60px); }
.edge-segment:nth-child(4)  { transform: rotateY(72deg) translateZ(60px); }
.edge-segment:nth-child(5)  { transform: rotateY(90deg) translateZ(60px); }
.edge-segment:nth-child(6)  { transform: rotateY(108deg) translateZ(60px); }
.edge-segment:nth-child(7)  { transform: rotateY(126deg) translateZ(60px); }
.edge-segment:nth-child(8)  { transform: rotateY(144deg) translateZ(60px); }
.edge-segment:nth-child(9)  { transform: rotateY(162deg) translateZ(60px); }
.edge-segment:nth-child(10) { transform: rotateY(180deg) translateZ(60px); }
.edge-segment:nth-child(11) { transform: rotateY(198deg) translateZ(60px); }
.edge-segment:nth-child(12) { transform: rotateY(216deg) translateZ(60px); }
.edge-segment:nth-child(13) { transform: rotateY(234deg) translateZ(60px); }
.edge-segment:nth-child(14) { transform: rotateY(252deg) translateZ(60px); }
.edge-segment:nth-child(15) { transform: rotateY(270deg) translateZ(60px); }
.edge-segment:nth-child(16) { transform: rotateY(288deg) translateZ(60px); }
.edge-segment:nth-child(17) { transform: rotateY(306deg) translateZ(60px); }
.edge-segment:nth-child(18) { transform: rotateY(324deg) translateZ(60px); }
.edge-segment:nth-child(19) { transform: rotateY(342deg) translateZ(60px); }
.edge-segment:nth-child(20) { transform: rotateY(360deg) translateZ(60px); }


.coin.flipping-heads {
    /* --- CONTROL KNOB 3: OVERALL SPEED --- */
    animation: coin-flip-heads 1s linear forwards;
}
.coin.flipping-tails {
    /* --- CONTROL KNOB 3: OVERALL SPEED --- */
    animation: coin-flip-tails 1s linear forwards;
}

@keyframes coin-flip-heads {
    0% { /* START OF FLIP */
        transform: translateY(0) rotateX(0) rotateY(0);
        animation-timing-function: cubic-bezier(0.3, 0.5, 0.4, 1); /* Ease out curve for launch */
    }
    48% { /* PEAK OF FLIP */
        /* --- CONTROL KNOB 1: FLIP HEIGHT --- */
        transform: translateY(-450px) rotateX(720deg) rotateY(1080deg);
        animation-timing-function: linear; /* Constant speed during hang time */
    }
    /* --- CONTROL KNOB 2: HANG TIME (PAUSE) --- */
    48% { /* END OF HANG TIME */
        /* --- CONTROL KNOB 1: FLIP HEIGHT --- */
        transform: translateY(-450px) rotateX(720deg) rotateY(1080deg);
        animation-timing-function: cubic-bezier(0.6, 0, 0.7, 0.5); /* Ease in curve for fall */
    }
    100% { /* END OF FLIP (LANDS) */
        transform: translateY(0) rotateX(1440deg) rotateY(2160deg);
    }
}
@keyframes coin-flip-tails {
    0% { /* START OF FLIP */
        transform: translateY(0) rotateX(0) rotateY(0);
        animation-timing-function: cubic-bezier(0.3, 0.5, 0.4, 1); /* Ease out curve for launch */
    }
    48% { /* PEAK OF FLIP */
        /* --- CONTROL KNOB 1: FLIP HEIGHT --- */
        transform: translateY(-450px) rotateX(720deg) rotateY(990deg);
        animation-timing-function: linear; /* Constant speed during hang time */
    }
    /* --- CONTROL KNOB 2: HANG TIME (PAUSE) --- */
    48% { /* END OF HANG TIME */
        /* --- CONTROL KNOB 1: FLIP HEIGHT --- */
        transform: translateY(-450px) rotateX(720deg) rotateY(990deg);
        animation-timing-function: cubic-bezier(0.6, 0, 0.7, 0.5); /* Ease in curve for fall */
    }
    100% { /* END OF FLIP (LANDS) */
        transform: translateY(0) rotateX(1440deg) rotateY(1980deg);
    }
}

.coin-controls {
    width: 100%;
    display: flex;
    flex-direction: column;
    align-items: center;
    flex-shrink: 0;
    margin-top: auto;
}

.stats {
    display: flex;
    justify-content: space-between;
    align-items: center;
    width: 100%;
    font-weight: bold;
    color: var(--text-color-light);
    font-size: 1.1em;
    padding: 10px;
    background-color: rgba(234, 242, 250, 0.7);
    border-radius: 8px;
}

#flip-coin-btn {
    padding: 12px 24px;
    font-size: 1.1em;
    font-weight: bold;
    background-color: var(--brand-primary);
    border: none;
    border-radius: 8px;
    color: white;
    cursor: pointer;
    transition: background-color 0.2s;
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.2);
    margin: 0 15px;
}

#flip-coin-btn:hover {
    background-color: var(--brand-primary-dark);
}

#flip-coin-btn:active {
    transform: translateY(2px);
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.2);
}

#flip-coin-btn:disabled {
    background-color: #999;
    cursor: not-allowed;
    transform: none;
}

#result-overlay {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    font-size: 3em;
    font-weight: bold;
    color: white;
    text-shadow: 2px 2px 8px rgba(0, 0, 0, 0.7);
    background-color: rgba(0, 0, 0, 0.5);
    padding: 15px 30px;
    border-radius: 10px;
    z-index: 10;
    opacity: 0;
    transition: opacity 0.5s;
    pointer-events: none;
}

#result-overlay.show {
    opacity: 1;
}

/* --- Mobile and Fullscreen adjustments --- */
/* (No changes below this line) */
.tool-card.fullscreen-mode .coin-container {
    width: 180px;
    height: 180px;
}
.tool-card.fullscreen-mode .edge-segment {
    top: calc(50% - 6px);
    left: calc(50% - 14.25px);
    width: 28.5px;
    height: 12px;
}
.tool-card.fullscreen-mode .edge-segment:nth-child(1)  { transform: rotateY(18deg) translateZ(90px); }
.tool-card.fullscreen-mode .edge-segment:nth-child(2)  { transform: rotateY(36deg) translateZ(90px); }
.tool-card.fullscreen-mode .edge-segment:nth-child(3)  { transform: rotateY(54deg) translateZ(90px); }
.tool-card.fullscreen-mode .edge-segment:nth-child(4)  { transform: rotateY(72deg) translateZ(90px); }
.tool-card.fullscreen-mode .edge-segment:nth-child(5)  { transform: rotateY(90deg) translateZ(90px); }
.tool-card.fullscreen-mode .edge-segment:nth-child(6)  { transform: rotateY(108deg) translateZ(90px); }
.tool-card.fullscreen-mode .edge-segment:nth-child(7)  { transform: rotateY(126deg) translateZ(90px); }
.tool-card.fullscreen-mode .edge-segment:nth-child(8)  { transform: rotateY(144deg) translateZ(90px); }
.tool-card.fullscreen-mode .edge-segment:nth-child(9)  { transform: rotateY(162deg) translateZ(90px); }
.tool-card.fullscreen-mode .edge-segment:nth-child(10) { transform: rotateY(180deg) translateZ(90px); }
.tool-card.fullscreen-mode .edge-segment:nth-child(11) { transform: rotateY(198deg) translateZ(90px); }
.tool-card.fullscreen-mode .edge-segment:nth-child(12) { transform: rotateY(216deg) translateZ(90px); }
.tool-card.fullscreen-mode .edge-segment:nth-child(13) { transform: rotateY(234deg) translateZ(90px); }
.tool-card.fullscreen-mode .edge-segment:nth-child(14) { transform: rotateY(252deg) translateZ(90px); }
.tool-card.fullscreen-mode .edge-segment:nth-child(15) { transform: rotateY(270deg) translateZ(90px); }
.tool-card.fullscreen-mode .edge-segment:nth-child(16) { transform: rotateY(288deg) translateZ(90px); }
.tool-card.fullscreen-mode .edge-segment:nth-child(17) { transform: rotateY(306deg) translateZ(90px); }
.tool-card.fullscreen-mode .edge-segment:nth-child(18) { transform: rotateY(324deg) translateZ(90px); }
.tool-card.fullscreen-mode .edge-segment:nth-child(19) { transform: rotateY(342deg) translateZ(90px); }
.tool-card.fullscreen-mode .edge-segment:nth-child(20) { transform: rotateY(360deg) translateZ(90px); }

.tool-card.fullscreen-mode .coin-heads { transform: translateZ(6px); }
.tool-card.fullscreen-mode .coin-tails { transform: rotateY(180deg) translateZ(6px); }

.tool-card.fullscreen-mode #result-overlay {
    font-size: 4em;
}

.tool-card.fullscreen-mode .coin-animation-space {
    min-height: 400px;
}

.tool-card.fullscreen-mode #flip-coin-btn {
    padding: 15px 30px;
    font-size: 1.3em;
}

/* Mobile adjustments */
@media (max-width: 768px) {
    .coin-container {
        width: 100px;
        height: 100px;
    }
    .edge-segment {
        top: calc(50% - 3px);
        left: calc(50% - 8px);
        width: 16px;
        height: 6px;
    }
    .edge-segment:nth-child(1)  { transform: rotateY(18deg) translateZ(50px); }
    .edge-segment:nth-child(2)  { transform: rotateY(36deg) translateZ(50px); }
    .edge-segment:nth-child(3)  { transform: rotateY(54deg) translateZ(50px); }
    .edge-segment:nth-child(4)  { transform: rotateY(72deg) translateZ(50px); }
    .edge-segment:nth-child(5)  { transform: rotateY(90deg) translateZ(50px); }
    .edge-segment:nth-child(6)  { transform: rotateY(108deg) translateZ(50px); }
    .edge-segment:nth-child(7)  { transform: rotateY(126deg) translateZ(50px); }
    .edge-segment:nth-child(8)  { transform: rotateY(144deg) translateZ(50px); }
    .edge-segment:nth-child(9)  { transform: rotateY(162deg) translateZ(50px); }
    .edge-segment:nth-child(10) { transform: rotateY(180deg) translateZ(50px); }
    .edge-segment:nth-child(11) { transform: rotateY(198deg) translateZ(50px); }
    .edge-segment:nth-child(12) { transform: rotateY(216deg) translateZ(50px); }
    .edge-segment:nth-child(13) { transform: rotateY(234deg) translateZ(50px); }
    .edge-segment:nth-child(14) { transform: rotateY(252deg) translateZ(50px); }
    .edge-segment:nth-child(15) { transform: rotateY(270deg) translateZ(50px); }
    .edge-segment:nth-child(16) { transform: rotateY(288deg) translateZ(50px); }
    .edge-segment:nth-child(17) { transform: rotateY(306deg) translateZ(50px); }
    .edge-segment:nth-child(18) { transform: rotateY(324deg) translateZ(50px); }
    .edge-segment:nth-child(19) { transform: rotateY(342deg) translateZ(50px); }
    .edge-segment:nth-child(20) { transform: rotateY(360deg) translateZ(50px); }
    
    .coin-heads { transform: translateZ(3px); }
    .coin-tails { transform: rotateY(180deg) translateZ(3px); }
    
    .stats {
        flex-direction: column;
        gap: 10px;
    }
    
    #flip-coin-btn {
        margin: 10px 0;
        order: -1; /* Move button to top in mobile view */
    }
    
    .tool-card.fullscreen-mode .coin-container {
        width: 150px;
        height: 150px;
    }
    .tool-card.fullscreen-mode .edge-segment {
        top: calc(50% - 5px);
        left: calc(50% - 12px);
        width: 24px;
        height: 10px;
    }
    .tool-card.fullscreen-mode .edge-segment:nth-child(1)  { transform: rotateY(18deg) translateZ(75px); }
    .tool-card.fullscreen-mode .edge-segment:nth-child(2)  { transform: rotateY(36deg) translateZ(75px); }
    .tool-card.fullscreen-mode .edge-segment:nth-child(3)  { transform: rotateY(54deg) translateZ(75px); }
    .tool-card.fullscreen-mode .edge-segment:nth-child(4)  { transform: rotateY(72deg) translateZ(75px); }
    .tool-card.fullscreen-mode .edge-segment:nth-child(5)  { transform: rotateY(90deg) translateZ(75px); }
    .tool-card.fullscreen-mode .edge-segment:nth-child(6)  { transform: rotateY(108deg) translateZ(75px); }
    .tool-card.fullscreen-mode .edge-segment:nth-child(7)  { transform: rotateY(126deg) translateZ(75px); }
    .tool-card.fullscreen-mode .edge-segment:nth-child(8)  { transform: rotateY(144deg) translateZ(75px); }
    .tool-card.fullscreen-mode .edge-segment:nth-child(9)  { transform: rotateY(162deg) translateZ(75px); }
    .tool-card.fullscreen-mode .edge-segment:nth-child(10) { transform: rotateY(180deg) translateZ(75px); }
    .tool-card.fullscreen-mode .edge-segment:nth-child(11) { transform: rotateY(198deg) translateZ(75px); }
    .tool-card.fullscreen-mode .edge-segment:nth-child(12) { transform: rotateY(216deg) translateZ(75px); }
    .tool-card.fullscreen-mode .edge-segment:nth-child(13) { transform: rotateY(234deg) translateZ(75px); }
    .tool-card.fullscreen-mode .edge-segment:nth-child(14) { transform: rotateY(252deg) translateZ(75px); }
    .tool-card.fullscreen-mode .edge-segment:nth-child(15) { transform: rotateY(270deg) translateZ(75px); }
    .tool-card.fullscreen-mode .edge-segment:nth-child(16) { transform: rotateY(288deg) translateZ(75px); }
    .tool-card.fullscreen-mode .edge-segment:nth-child(17) { transform: rotateY(306deg) translateZ(75px); }
    .tool-card.fullscreen-mode .edge-segment:nth-child(18) { transform: rotateY(324deg) translateZ(75px); }
    .tool-card.fullscreen-mode .edge-segment:nth-child(19) { transform: rotateY(342deg) translateZ(75px); }
    .tool-card.fullscreen-mode .edge-segment:nth-child(20) { transform: rotateY(360deg) translateZ(75px); }
    
    .tool-card.fullscreen-mode .coin-heads { transform: translateZ(5px); }
    .tool-card.fullscreen-mode .coin-tails { transform: rotateY(180deg) translateZ(5px); }

    .tool-card.fullscreen-mode #result-overlay {
        font-size: 3em;
    }
    
    .coin-toss-content {
        min-height: 450px;
    }
    
    .stats {
        font-size: 1em;
    }
    
    .tool-card.fullscreen-mode .stats {
        flex-direction: row;
    }
    
    .tool-card.fullscreen-mode #flip-coin-btn {
        order: 0;
        margin: 0 15px;
    }
}

/* --- Flashcard Manager --- */
.flashcard-manager-controls {
    display: flex;
    flex-direction: column;
    gap: 1em;
    width: 100%;
    border-bottom: 2px solid var(--border-color);
    padding-bottom: 1em;
    margin-bottom: 1em;
}
.fm-row {
    display: flex;
    gap: 10px;
    align-items: center;
    flex-wrap: wrap;
}
.fm-row input, .fm-row select {
    padding: 8px;
    border: 1px solid var(--border-color);
    border-radius: 5px;
}
.fm-row input[type="text"], .fm-row select {
    flex-grow: 1;
}
#fm-export-btn {
    background-color: var(--accent-green); 
}
#fm-export-btn:hover {
    background-color: #21867a;
}
#fm-import-label {
    background-color: var(--accent-orange); 
}
#fm-import-label:hover {
    background-color: #e4930e;
}

#fm-current-cards {
    width: 100%;
    min-height: 100px;
    max-height: 200px;
    overflow-y: auto;
    border: 1px solid var(--border-color);
    border-radius: 5px;
    padding: 10px;
    background-color: #eaf2fa;
}
.fm-card-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 5px;
    background-color: var(--surface-color);
    border-radius: 4px;
    margin-bottom: 5px;
}
.fm-card-item button { 
    font-size: 0.8em; 
    padding: 2px 6px; 
    background-color: var(--accent-red);
    min-width: auto;
    margin: 0;
}

/* --- Fullscreen Mode --- */
.fullscreen-btn {
    position: absolute;
    top: 15px;
    right: 15px;
    padding: 4px 8px;
    font-size: 1.2em;
    line-height: 1;
    min-width: auto;
    background-color: rgba(255,255,255,0.2);
    color: white;
    border: 1px solid rgba(255,255,255,0.4);
    z-index: 10;
}
.fullscreen-btn:hover {
    background-color: rgba(255,255,255,0.4);
}

.tool-card.fullscreen-mode .fullscreen-btn {
    top: 1em;
    right: 1em;
    padding: 10px 15px;
    font-size: 1.1em;
    font-weight: bold;
    background-color: rgba(0,0,0,0.1);
    border: 1px solid #aaa;
    color: var(--text-color);
    white-space: nowrap;
}
.tool-card.fullscreen-mode .fullscreen-btn:hover {
    background-color: rgba(0,0,0,0.2);
}

.tool-card.fullscreen-mode {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100dvh; /* Use dynamic viewport height */
    z-index: 1000;
    margin: 0;
    border-radius: 0;
    overflow: auto; 
    padding: 1.5em; 
    background-color: var(--surface-color); 
    display: flex; /* ADDED */
    flex-direction: column; /* ADDED */
}
.tool-card.fullscreen-mode > h2 {
    display: none; /* Hide header bar in fullscreen to maximize space */
}
.tool-card.fullscreen-mode#scoreboard-tool {
    padding: 0;
    overflow: hidden;
}


body.has-fullscreen-tool {
    overflow: hidden; 
}
body.has-fullscreen-tool header,
body.has-fullscreen-tool .tool-container > .tool-card:not(.fullscreen-mode) {
    display: none; 
}

/* --- Audio Controls --- */
#mute-btn {
    position: absolute;
    top: 1em;
    right: 1em;
    font-size: 1.5em;
    background: none;
    border: none;
    cursor: pointer;
    padding: 5px;
    line-height: 1;
    color: #888;
    margin: 0;
}
#mute-btn:hover {
    color: var(--brand-primary);
    background: none;
}


/* --- Date & Weather --- */
.dw-main-content {
    display: flex;
    flex-direction: column;
    width: 100%;
    gap: 1.5em;
}
.dw-left-panel, .dw-right-panel {
    width: 100%;
}
.dw-calendar-nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1em;
}
#dw-calendar-header {
    color: var(--brand-primary-dark);
    margin: 0;
    font-size: 1.2em;
}
#dw-prev-month-btn, #dw-next-month-btn {
    padding: 4px 12px;
}
#dw-calendar-grid {
    display: grid;
    grid-template-columns: repeat(7, 1fr);
    gap: 5px;
    text-align: center;
}
.dw-day-name, .dw-date-cell {
    padding: 8px 0;
    font-weight: bold;
    border-radius: 4px;
}
.dw-day-name {
    color: var(--text-color-light);
    font-size: 0.9em;
}
.dw-date-cell {
    background-color: #eaf2fa;
    cursor: pointer;
    transition: background-color 0.2s, box-shadow 0.2s;
}
.dw-date-cell:not(.empty):hover {
    background-color: var(--border-color);
}
.dw-date-cell.empty {
    background-color: transparent;
    cursor: default;
}
.dw-date-cell.current-day {
    background-color: var(--accent-orange);
    color: white;
}
.dw-date-cell.selected-day {
    background-color: var(--brand-primary);
    color: white;
    box-shadow: 0 0 0 2px white, 0 0 0 4px var(--brand-primary);
    transform: scale(1.05);
}
.dw-right-panel {
    text-align: center;
    display: flex;
    flex-direction: column;
    align-items: center;
}

#date-weather-tool:not(.fullscreen-mode) #dw-month-display,
#date-weather-tool:not(.fullscreen-mode) .dw-day-date-row {
    display: none;
}

#dw-month-display {
    font-size: 2.5em;
    font-weight: bold;
    color: var(--brand-primary-dark);
}
.dw-day-date-row {
    display: flex;
    justify-content: center;
    align-items: baseline;
    gap: 1em;
    margin: 0.5em 0;
}
#dw-day-display {
    font-size: 2em;
    color: var(--text-color-light);
}
#dw-date-display {
    font-size: 3.5em;
    font-weight: bold;
    color: var(--brand-primary-dark);
}
#dw-date-display sup {
    font-size: 0.5em;
    vertical-align: super;
}
#dw-time-display {
    font-size: 1.5em;
    font-family: 'Courier New', Courier, monospace;
    background-color: var(--surface-color);
    color: var(--brand-primary);
    padding: 8px 15px;
    border-radius: 5px;
    border: 2px solid var(--brand-primary-light);
    box-shadow: inset 0 1px 3px rgba(0,0,0,0.1);
    display: inline-block;
}

.dw-time-weather-row {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 2em;
    width: 100%;
    margin-top: 1em;
}

#dw-weather-display {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.5em;
}
.dw-weather-controls {
    margin-bottom: 0.5em;
}
.dw-weather-controls select {
    padding: 5px;
    border-radius: 5px;
    border: 1px solid var(--border-color);
}
#dw-weather-img {
    width: 60px;
    height: 60px;
    object-fit: contain;
}
#dw-weather-text {
    font-size: 1.1em;
    font-weight: bold;
    text-transform: capitalize;
}

/* Fullscreen Date & Weather */
.tool-card.fullscreen-mode#date-weather-tool .dw-main-content {
    flex-direction: row;
    height: 100%;
    padding: 2em;
    align-items: stretch;
}
.tool-card.fullscreen-mode#date-weather-tool {
    padding: 0;
}
.tool-card.fullscreen-mode#date-weather-tool .dw-left-panel {
    flex: 1 1 45%;
    max-width: 500px;
    display: flex;
    flex-direction: column;
}
#dw-calendar-grid {
    flex-grow: 1; 
}
.tool-card.fullscreen-mode#date-weather-tool .dw-right-panel {
    flex: 1 1 55%;
    justify-content: center;
    height: 100%;
}
.tool-card.fullscreen-mode #dw-month-display {
    font-size: 7em;
}
.tool-card.fullscreen-mode #dw-day-display {
    font-size: 6em;
}
.tool-card.fullscreen-mode #dw-date-display {
    font-size: 8em;
}
.tool-card.fullscreen-mode #dw-time-display {
    font-size: 4em;
    padding: 10px 25px;
}
.tool-card.fullscreen-mode #dw-weather-img {
    width: 250px;
    height: 250px;
}
.tool-card.fullscreen-mode #dw-weather-text {
    font-size: 3em;
}

/* ========================================= */
/* ---         MOBILE QUERIES            --- */
/* ========================================= */

@media (max-width: 768px) {

    /* --- General Tool Card Adjustments --- */
    .tool-container {
        gap: 1.5em;
        padding: 0.5em;
    }
    .tool-card {
        padding: 1em;
    }
    .tool-card h2 {
        width: calc(100% + 2em);
        margin: -1em -1em 1em -1em;
        font-size: 1.15em;
    }
    
    /* --- Date & Weather (Fullscreen Mobile) --- */
    .tool-card.fullscreen-mode#date-weather-tool {
        overflow-y: hidden; /* Prevent scrolling inside the card */
    }
    .tool-card.fullscreen-mode#date-weather-tool .dw-main-content {
        flex-direction: column;
        padding: 1em;
        gap: 1em;
        height: 100%;
    }
    .tool-card.fullscreen-mode#date-weather-tool .dw-left-panel {
        flex: 1 1 auto; /* Allow this panel to grow and shrink */
        min-height: 0; /* Critical for flex-shrink to work correctly */
    }
    .tool-card.fullscreen-mode#date-weather-tool .dw-right-panel {
        flex-shrink: 0; /* Prevent the top panel from being squished */
    }
    .tool-card.fullscreen-mode#date-weather-tool #dw-month-display { font-size: clamp(2em, 8vw, 3em); }
    .tool-card.fullscreen-mode#date-weather-tool #dw-day-display { font-size: clamp(1.5em, 7vw, 2em); }
    .tool-card.fullscreen-mode#date-weather-tool #dw-date-display { font-size: clamp(2.5em, 10vw, 3.5em); }
    .tool-card.fullscreen-mode#date-weather-tool #dw-time-display { font-size: clamp(1.5em, 8vw, 2em); }
    .tool-card.fullscreen-mode#date-weather-tool .dw-time-weather-row {
        flex-direction: column;
        gap: 1em;
        margin-top: 1em;
    }
    .tool-card.fullscreen-mode#date-weather-tool #dw-weather-img {
        width: 80px;
        height: 80px;
    }
    .tool-card.fullscreen-mode#date-weather-tool #dw-weather-text { font-size: 1.5em; }

    /* --- Random Name Picker (Fullscreen Mobile) --- */
    .tool-card.fullscreen-mode .name-picker-content {
        flex-direction: column;
        gap: 1em;
        height: 100%; /* Ensure it fills the screen */
    }
    .tool-card.fullscreen-mode .name-picker-panel {
        flex-basis: auto;
        width: 100%;
        height: auto;
        flex-shrink: 0;
    }
    .tool-card.fullscreen-mode #picked-name {
        font-size: clamp(4em, 20vw, 6em);
        min-height: 100px;
        flex-grow: 1;
        display: flex;
        align-items: center;
        justify-content: center;
    }
    .class-list-manager {
        width: 100%;
    }
    #name-list {
        width: 100%;
        height: 80px; /* Reduce height on mobile */
    }

    /* --- Digital Flashcards (Button Spacing) --- */
    .tool-card.fullscreen-mode #flashcard-grid-view {
        flex: 1; /* Allow the grid to take all available vertical space */
        min-height: 0; /* Allow the grid to shrink if needed */
    }
    .tool-card.fullscreen-mode .flashcard-nav {
        flex-shrink: 0; /* Prevent nav buttons from being pushed off-screen */
    }
    .flashcard-nav {
        gap: 5px;
        flex-wrap: wrap;
        justify-content: center;
    }
    .flashcard-nav button {
        padding: 8px 12px;
        margin: 2px;
    }

    /* --- Scoreboard Fullscreen Mobile --- */
    #scoreboard-fullscreen-view {
        gap: 0.5em;
        padding: 0.5em;
    }
    .fs-team-info {
        padding: 0.3em 0.8em;
        gap: 0.5em;
        top: 0.5em;
        left: 0.5em;
    }
    .fs-team-name {
        font-size: 1em;
    }
    .fs-score-btn {
        width: 45px;
        height: 45px;
        font-size: 1.8em;
    }
    .fs-score-controls {
        bottom: 0.5em;
        right: 0.5em;
    }
}