/* style.css - UX-Optimized, High-Contrast Design */
:root {
    --color-primary: #007AFF; /* Apple Blue */
    --color-primary-dark: #005bb5;
    --color-background: #f5f5f7; /* Light neutral background */
    --color-surface: #ffffff; /* Card background */
    --color-text: #1d1d1f; /* Dark text */
    --color-shadow: rgba(0, 0, 0, 0.08);
}

* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif, "Apple Color Emoji", "Segoe UI Emoji", "Segoe UI Symbol";
}

body {
    background-color: var(--color-background);
    color: var(--color-text);
    line-height: 1.6;
}

main#app {
    padding: 40px 20px;
    max-width: 900px;
    margin: 0 auto;
}

.hidden {
    display: none !important;
}

.screen-centered {
    min-height: 60vh;
    display: flex;
    justify-content: center;
    align-items: center;
    text-align: center;
    flex-direction: column;
}

.card {
    background: var(--color-surface);
    padding: 40px;
    border-radius: 12px;
    box-shadow: 0 4px 16px var(--color-shadow);
    max-width: 500px;
    width: 100%;
    text-align: left;
}

h1, h2 {
    margin-bottom: 20px;
    color: var(--color-text);
    font-weight: 600;
}

p {
    margin-bottom: 15px;
}

/* --- Form Elements --- */
input[type="text"], input[type="email"] {
    width: 100%;
    padding: 12px;
    margin-bottom: 15px;
    border: 1px solid #d1d1d6;
    border-radius: 8px;
    font-size: 16px;
    transition: border-color 0.2s;
}

input[type="text"]:focus, input[type="email"]:focus {
    border-color: var(--color-primary);
    outline: none;
}

/* --- Buttons --- */
.cta-button, .response-button, .secondary-button {
    cursor: pointer;
    font-size: 16px;
    padding: 12px 25px;
    border-radius: 8px;
    transition: background-color 0.2s, box-shadow 0.2s;
    font-weight: 500;
    margin: 5px;
    text-align: center;
    border: none;
}

.cta-button {
    background-color: var(--color-primary);
    color: var(--color-surface);
    width: 100%;
    margin-top: 15px;
}

.cta-button:hover {
    background-color: var(--color-primary-dark);
}

.secondary-button {
    background-color: transparent;
    color: var(--color-text);
    border: 1px solid #d1d1d6;
    width: 100%;
    margin-top: 10px;
}

/* --- Quiz Screen Layout --- */
.quiz-header {
    margin-bottom: 30px;
    padding: 20px 0;
}

#progress-bar-container {
    height: 8px;
    background: #e5e5ea;
    border-radius: 4px;
    overflow: hidden;
    margin-bottom: 5px;
}

#progress-bar {
    height: 100%;
    width: 0%;
    background: var(--color-primary);
    transition: width 0.3s ease-out;
}

#progress-text {
    font-size: 14px;
    text-align: right;
    color: #636366;
}

#question-container {
    margin: 0 auto;
    max-width: 700px; /* Wider card for the quiz interaction */
}

#question-text {
    font-size: 1.5em;
    font-weight: 600;
}

#answer-area {
    border-top: 1px solid #e5e5ea;
    padding-top: 20px;
    margin-top: 20px;
}

#answer-content {
    min-height: 100px; /* Reserve space to prevent layout shifts */
}

#answer-text {
    font-size: 1.1em;
    font-weight: 400;
    margin-bottom: 20px;
}

#answer-image-container, #question-image-container {
    max-width: 100%;
    margin-bottom: 20px;
    text-align: center;
}

#answer-image-container img, #question-image-container img {
    max-width: 100%;
    height: auto;
    border-radius: 8px;
}

/* --- Response Buttons --- */
#response-options {
    display: flex;
    justify-content: space-between;
    gap: 10px;
    margin-top: 25px;
}

.response-button {
    flex-grow: 1;
    background-color: #f0f0f5;
    color: var(--color-text);
    padding: 15px 10px;
    font-weight: 600;
    border: 1px solid transparent;
}

.response-button:hover:not(:disabled) {
    background-color: #e5e5ea;
    border-color: var(--color-primary);
}

.disabled-options .response-button {
    opacity: 0.5;
    pointer-events: none;
}

/* --- Timer --- */
#countdown-timer {
    text-align: right;
    font-weight: 600;
    color: var(--color-primary);
    margin-top: 15px;
    padding-top: 15px;
    border-top: 1px dashed #e5e5ea;
}

/* --- Results Screen --- */
.score-display {
    padding: 20px;
    border-radius: 10px;
    background-color: #f0f0f5;
    margin-bottom: 25px;
}

#qpr-score {
    font-size: 3em;
    color: var(--color-primary);
    font-weight: 700;
}

#confirmation-details {
    padding-top: 20px;
    border-top: 1px solid #e5e5ea;
}