:root {
    /* Primary Colors */
    --color-primary-dark: #88b;
    --color-primary-light: #ace;
    --color-primary-medium: #cdf;

    /* Background Colors */
    --color-bg-body: #e0f0ff;
    --color-bg-card: #ace;
    --color-bg-header: #cdf;
    --color-bg-tab: #cdd;
    --color-bg-active: #fff;

    /* Text Colors */
    --color-text-primary: #000;

    /* Border Colors */
    --color-border-primary: #448;

}

* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
    max-width: 100%;
}

body {
    font-family: "SF Pro", system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, 'Open Sans', 'Helvetica Neue', sans-serif;
    background-color: var(--color-bg-body);
    font-size: clamp(14px, 4vw, 32px);
    padding: 8px;
    min-height: 100vh;
    align-items: center;
    justify-content: center;
}

.card {
    background-color: var(--color-bg-card);
    border-radius: 36px;
    border: 16px solid var(--color-bg-card);
    min-height: 100%;
}

header {
    border-radius: 24px;
    background-color: var(--color-bg-header);
    padding: 16px;
    margin-bottom: 16px;
    text-align: center;
}

h1,
h2,
h3 {
    margin: 0;
    color: var(--color-text-primary);
    text-align: center;
}

hr {
    border: none;
    border-top: 2px solid var(--color-border-primary);
    margin: clamp(8px, 2vw, 12px) 0;
}

/* Make section headings stick to the top while scrolling their section */
.content h2 {
    position: sticky;
    top: 0;
    background-color: var(--color-bg-header);
    border-radius: 24px;
    z-index: 2;
    padding: 8px 0;
    margin: 0 0 8px 0;
}

form {
    display: flex;
    text-align: center;
    flex-direction: column;
    gap: 16px;
}

button,
input {
    padding: 8px 16px;
    border-radius: 24px;
    border-style: solid;
    font-size: clamp(14px, 4vw, 20px);
    font-weight: 600;
    transition: background-color 0.2s ease;
    min-height: 60px;
}

button:hover {
    background-color: var(--color-bg-header);
    cursor: pointer;
}

button:active {
    transform: scale(0.98);
}

input[type="password"],
input[type="submit"] {
    background-color: var(--color-bg-active);
    color: var(--color-text-primary);
}

input[type="submit"] {
    background-color: var(--color-bg-header);
}

.tab-scroller {
    padding: 0px;
    border: clamp(4px, 2vw, 8px) solid var(--color-border-primary);
    background-color: var(--color-border-primary);
    display: flex;
    gap: 0px;
    overflow-x: auto;
    box-sizing: border-box;
    border-radius: 24px;
    border-bottom-left-radius: 0%;
    border-bottom-right-radius: 0%;
    background-clip: padding-box;
}

.tab-scroller>div,
.sub-tab-scroller>div {
    padding: clamp(6px, 2vw, 8px) clamp(6px, 2vw, 8px);
    border-radius: 10px;
    border-bottom-left-radius: 0%;
    border-bottom-right-radius: 0%;
    border: 1px solid var(--color-border-primary);
    border-bottom: none;
    background-color: var(--color-bg-tab);
    white-space: nowrap;
    font-size: clamp(18px, 3vw, 24px);
    line-height: 1.2;
}

.tab-scroller>div:first-child,
.sub-tab-scroller>div:first-child {
    margin-left: -2px;
}

.sub-tab-scroller {
    padding: 0px;
    border: clamp(4px, 2vw, 8px) solid var(--color-border-primary);
    border-radius: 24px;
    border-top-left-radius: 0%;
    border-top-right-radius: 0%;
    background-color: var(--color-border-primary);
    display: flex;
    gap: 0px;
    overflow-x: auto;
    box-sizing: border-box;
    background-clip: padding-box;
}

/* Float the tab bar at the top of the viewport when scrolling */
.tabs {
    position: sticky;
    top: clamp(4px, 2vw, 8px);
    z-index: 200;
}

p {
    margin: 28px;
    font-size: clamp(18px, 4vw, 28px);
}

/* Avoid content underlapping the sticky tab bar */
.content {
    padding-top: clamp(8px, 2vw, 12px);
}


.sub-tab-scroller>div:first-child {
    border-top-left-radius: 0% !important;
}

.sub-tab-scroller>div:last-child {
    border-top-right-radius: 0% !important;
    border-bottom-right-radius: 16px !important;
}

#tabs {
    position: static;
}

.sub-tab-scroller>div a {
    color: var(--color-text-primary);
    text-decoration: none;
}

.sub-tab-scroller .active,
.tab-scroller .active,
.active h1,
.active h2 {
    background-color: var(--color-bg-active) !important;
    border-color: var(--color-border-primary) !important;
    font-weight: bold;
}

.sub-tab-scroller .active,
.tab-scroller .active {
    padding-top: 3px !important;
    padding-bottom: 3px !important;
}

* {
    scroll-behavior: smooth !important;
    transition: background-color 0.9s ease, border-color 0.9s ease, padding 0.9s ease, margin 0.9s ease, border-radius 0.9s ease;
}

tr.true {
    border-color: green !important;
}

tr.false {
    border-color: red !important;
}

td.falseText {
    color: white !important;
    background-color: red !important;
}

td.trueText {
    color: white !important;
    background-color: green !important;
}

/* Touch device optimizations */
@media (hover: none) and (pointer: coarse) {

    button,
    input {
        min-height: 96px;
        font-size: clamp(24px, 6vw, 48px);
    }

    button:active {
        transform: scale(0.95);
    }
}

/* Landscape mode optimizations */
@media (max-height: 500px) {
    body {
        padding: 4px;
    }

    .card {
        padding: 8px;
    }

    header {
        padding: clamp(8px, 2vw, 12px);
        margin-bottom: 8px;
    }

    form {
        gap: clamp(8px, 2vw, 12px);
        padding: clamp(8px, 2vw, 12px);
    }
}

/* Trivia Card Styling */
.trivia-container {
    padding: 16px;
    min-height: 300px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.progress-bar {
    width: 100%;
    height: 12px;
    margin: 12px 0 16px 0;
    border-radius: 999px;
    border: 2px solid var(--color-border-primary);
    background-color: var(--color-bg-active);
    overflow: hidden;
}

.progress-fill {
    width: 0%;
    height: 100%;
    background-color: var(--color-primary-dark);
    transition: width 0.3s ease;
}

.btn-back {
    display: block;
    width: 100%;
    padding: 12px 16px;
    border: 2px solid var(--color-border-primary);
    border-radius: 16px;
    background-color: var(--color-bg-header);
    color: var(--color-text-primary);
    font-size: clamp(16px, 3vw, 20px);
    font-weight: 600;
    text-decoration: none;
    text-align: center;
}

.loading-indicator {
    margin: 0 16px 16px 16px;
    padding: 16px;
    border: 2px solid var(--color-border-primary);
    border-radius: 16px;
    background-color: var(--color-bg-header);
    text-align: center;
    font-size: clamp(16px, 3vw, 20px);
    font-weight: 600;
}

.trivia-card {
    width: 100%;
    padding: 24px;
    border-radius: 24px;
    border: 8px solid var(--color-border-primary);
    background-color: var(--color-bg-active);
    position: relative;
    display: flex;
    flex-direction: column;
}

.trivia-card.true.correct-answer-border {
    border-color: green !important;
    border-width: 10px !important;
}

.trivia-card.true.incorrect-answer-border {
    border-color: red !important;
    border-width: 10px !important;
}

.trivia-card.false.correct-answer-border {
    border-color: green !important;
    border-width: 10px !important;
}

.trivia-card.false.incorrect-answer-border {
    border-color: red !important;
    border-width: 10px !important;
}

.trivia-card-inner {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.trivia-statement {
    font-size: clamp(20px, 5vw, 28px);
    font-weight: 600;
    color: var(--color-text-primary);
    text-align: center;
    margin: 0;
    padding: 16px;
    border-radius: 16px;
    background-color: var(--color-bg-header);
}

.trivia-buttons {
    display: flex;
    gap: 16px;
    justify-content: center;
    flex-direction: column;
    width: 100%;
    margin: 0;
}

.youth-said-heading {
    font-size: clamp(18px, 4vw, 24px);
    font-weight: 600;
    color: var(--color-text-primary);
    text-align: center;
    margin: 16px 0 12px 0;
    padding: 0;
}

.btn-true,
.btn-false {
    flex: 1 1 100%;
    min-width: 100%;
    padding: 16px 24px;
    font-size: clamp(18px, 4vw, 24px);
    font-weight: 600;
    border: 3px solid var(--color-border-primary);
    border-radius: 16px;
    background-color: var(--color-bg-tab);
    color: var(--color-text-primary);
    cursor: pointer;
    transition: all 0.3s ease;
}

.btn-true:disabled,
.btn-false:disabled {
    cursor: not-allowed;
    opacity: 0.8;
}

.btn-true {
    border-color: green;
}

.btn-true.selected {
    background-color: green;
    color: white;
    font-weight: bold;
}

.btn-false {
    border-color: red;
}

.btn-false.selected {
    background-color: red;
    color: white;
    font-weight: bold;
}

.btn-true:hover,
.btn-false:hover {
    transform: scale(1.05);
}

.btn-true:active,
.btn-false:active {
    transform: scale(0.98);
}

.trivia-feedback {
    padding: 16px;
    border-radius: 12px;
    text-align: center;
}

.trivia-feedback.correct {
    background-color: rgba(0, 128, 0, 0.1);
    border: 2px solid green;
}

.trivia-feedback.incorrect {
    background-color: rgba(255, 0, 0, 0.1);
    border: 2px solid red;
}

.feedback-text {
    font-size: clamp(18px, 4vw, 24px);
    font-weight: bold;
    margin: 0 0 8px 0;
    color: var(--color-text-primary);
}

.trivia-feedback.correct .feedback-text {
    color: green;
}

.trivia-feedback.incorrect .feedback-text {
    color: red;
}

.correct-answer {
    font-size: clamp(16px, 3vw, 20px);
    margin: 8px 0;
    color: var(--color-text-primary);
}

.context {
    font-size: clamp(14px, 3vw, 18px);
    margin: 8px 0 0 0;
    color: var(--color-text-primary);
    font-style: italic;
}

.btn-next {
    padding: 16px 24px;
    font-size: clamp(18px, 4vw, 24px);
    font-weight: 600;
    border: 2px solid var(--color-border-primary);
    border-radius: 16px;
    background-color: var(--color-bg-header);
    color: var(--color-text-primary);
    cursor: pointer;
    transition: all 0.3s ease;
    margin-top: 16px;
    width: 100%;
}

.btn-next:hover {
    background-color: var(--color-bg-active);
    transform: scale(1.05);
}

.btn-next:active {
    transform: scale(0.98);
}

.results-container {
    padding: 24px;
    text-align: center;
}

.results-container h2 {
    font-size: clamp(24px, 5vw, 32px);
    margin-bottom: 16px;
}

.results-container>p {
    font-size: clamp(18px, 4vw, 24px);
    margin-bottom: 24px;
}

.missed-list {
    display: flex;
    flex-direction: column;
    gap: 16px;
    margin-bottom: 24px;
    max-height: 400px;
    overflow-y: auto;
}

.missed-item {
    padding: 16px;
    border-radius: 12px;
    border: 2px solid var(--color-border-primary);
    background-color: var(--color-bg-tab);
    text-align: left;
}

.missed-item.true {
    border-color: green;
    background-color: rgba(0, 128, 0, 0.05);
}

.missed-item.false {
    border-color: red;
    background-color: rgba(255, 0, 0, 0.05);
}

.missed-item p {
    margin: 8px 0;
    font-size: clamp(14px, 3vw, 18px);
}

.missed-item .correct-answer {
    color: green;
    font-weight: bold;
}

.missed-item.false .correct-answer {
    color: red;
}

.btn-retry {
    padding: 16px 32px;
    font-size: clamp(18px, 4vw, 24px);
    font-weight: 600;
    border: 2px solid var(--color-border-primary);
    border-radius: 16px;
    background-color: var(--color-bg-header);
    color: var(--color-text-primary);
    cursor: pointer;
    transition: all 0.3s ease;
    min-height: 80px;
}

.btn-retry:hover {
    background-color: var(--color-bg-active);
    transform: scale(1.05);
}

.btn-retry:active {
    transform: scale(0.98);
}

@media (hover: none) and (pointer: coarse) {

    .btn-true,
    .btn-false,
    .btn-next,
    .btn-retry {
        min-height: 96px;
        font-size: clamp(20px, 5vw, 28px);
    }
}

#listOfNumbers {
    margin: 16pt;
    padding: 16pt;
    background-color: var(--color-bg-header);
    border-radius: 12px;
    font-size: clamp(16px, 4vw, 24px);
}