/* assets/css/style.css */
:root {
    --bg-color: #00050a;
    --primary-text-color: #e0f0ff;
    --accent-color: #00ffff;
    --secondary-accent-color: #00a0a0;
    --container-bg-color: rgba(0, 15, 30, 0.9);
    --border-color: #005060;
    --hover-bg-color: rgba(0, 40, 60, 0.95);
    --font-main: 'Roboto', 'Helvetica Neue', Arial, sans-serif;
    --font-mono: 'Consolas', 'Menlo', 'Courier New', monospace;
    --min-content-height: 300px; /* Minimum height for content areas */
    --min-card-height: 450px; /* Minimum height for the result card */
}

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

body {
    font-family: var(--font-main);
    background-color: var(--bg-color);
    color: var(--primary-text-color);
    line-height: 1.6;
    font-size: 16px;
    overflow-x: hidden;
    position: relative; /* For z-indexing context if needed */
}

#particles-js {
    position: fixed;
    width: 100%;
    height: 100%;
    top: 0;
    left: 0;
    z-index: -1; /* Behind all other content */
    background-color: var(--bg-color); /* Fallback if particles don't load */
}

.container {
    width: 95%;
    max-width: 800px;
    margin: 20px auto;
    padding: 20px;
    background-color: var(--container-bg-color);
    border: 1px solid var(--border-color);
    position: relative; /* To sit above particles-js */
    z-index: 1;
    display: flex; /* Using flex for centering content vertically if needed */
    flex-direction: column;
    /* justify-content: center; /* Can cause issues if content is taller than viewport */
}

h1, h2, h3, h4, h5, h6 {
    color: var(--accent-color);
    margin-bottom: 0.75em;
    font-weight: 400;
    letter-spacing: 0.5px;
}
h1 { font-size: 2em; }
h2 { font-size: 1.6em; }
h3 { font-size: 1.3em; }

p { margin-bottom: 1em; }
a { color: var(--accent-color); text-decoration: none; }
a:hover { text-decoration: underline; }

/* --- Home Page Specific --- */
.start-container {
    text-align: center;
    padding: 30px 15px;
    min-height: calc(100vh - 40px - 40px); /* Full viewport height minus top/bottom margin of container & some padding */
    justify-content: center; /* Center content vertically */
}
.start-container h1 {
    font-size: 2.2em;
    color: #ffffff;
    margin-bottom: 25px;
}
.start-container p {
    font-size: 1em;
    color: var(--primary-text-color);
    margin-bottom: 35px;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}
.start-button {
    display: inline-block;
    padding: 12px 28px;
    font-size: 1.2em;
    background-color: var(--secondary-accent-color);
    color: var(--bg-color);
    border: 1px solid var(--accent-color);
    text-decoration: none;
    cursor: pointer;
    transition: background-color 0.3s ease, color 0.3s ease;
    font-weight: 600;
}
.start-button:hover {
    background-color: var(--accent-color);
    color: var(--bg-color);
}

/* --- Question Page Specific --- */
.question-container {
    padding: 20px 15px;
    min-height: var(--min-content-height); /* Ensure a minimum height */
    display: flex;
    flex-direction: column;
}
.question-content-wrapper { /* New wrapper for better control */
    flex-grow: 1; /* Allows this area to expand if question-container has extra space */
}
.progress-text {
    text-align: right;
    font-size: 0.9em;
    color: var(--secondary-accent-color);
    margin-bottom: 5px;
}
.progress-bar-container {
    width: 100%;
    background-color: rgba(0,0,0,0.2);
    margin-bottom: 20px;
    height: 10px;
    border: 1px solid var(--border-color);
}
.progress-bar {
    height: 100%;
    background-color: var(--secondary-accent-color);
    transition: width 0.4s ease-in-out;
}
.question-title {
    font-size: 1.5em;
    margin-bottom: 10px;
    padding-bottom: 10px;
    border-bottom: 1px solid var(--border-color);
}
.scenario-text {
    font-size: 1.05em;
    margin-bottom: 15px;
    color: #ffffff;
    min-height: 60px; /* Example: give scenario text a min height */
}
.knowledge-point {
    font-size: 0.9em;
    color: #a0c0d0;
    margin-bottom: 25px;
    padding: 10px;
    background-color: rgba(0, 20, 35, 0.6);
    border-left: 2px solid var(--secondary-accent-color);
    min-height: 40px; /* Example: give knowledge point a min height */
}
.options-list {
    list-style: none;
    padding: 0;
    margin-top: auto; /* Push options to bottom if content is short */
}
.options-list li { margin-bottom: 8px; }
.option-label {
    display: block;
    padding: 12px;
    background-color: transparent;
    border: 1px solid var(--border-color);
    cursor: pointer;
    transition: background-color 0.2s ease, border-color 0.2s ease;
    color: var(--primary-text-color);
}
.option-label:hover {
    background-color: var(--hover-bg-color);
    border-color: var(--secondary-accent-color);
}
.option-label input[type="radio"] {
    margin-right: 10px;
    vertical-align: middle;
    accent-color: var(--accent-color);
    transform: scale(1.2);
}
.option-label input[type="radio"]:checked + span {
    color: var(--accent-color);
    font-weight: 500;
}
.option-label.selected {
    background-color: var(--hover-bg-color);
    border-color: var(--accent-color);
}
.submit-button { display: none; }

/* --- Result Page Specific --- */
.result-container {
    padding: 20px 10px;
    min-height: calc(100vh - 40px); /* Aim for full viewport height less top/bottom margin */
    justify-content: center; /* Center content vertically */
    align-items: center; /* Center content horizontally */
}
.identity-card {
    background-color: var(--container-bg-color); /* Already has container bg */
    border: 1px solid var(--accent-color);
    padding: 20px;
    width: 100%;
    max-width: 380px;
    color: var(--primary-text-color);
    text-align: center;
    display: flex;
    flex-direction: column;
    align-items: center; /* Center items within the card */
    min-height: var(--min-card-height); /* Minimum height for the card */
}
.card-header {
    color: var(--secondary-accent-color);
    font-size: 0.8em;
    letter-spacing: 1.5px;
    margin-bottom: 15px;
    text-transform: uppercase;
    border-bottom: 1px solid var(--border-color);
    padding-bottom: 8px;
    width: 100%;
}
.avatar-container {
    width: 90px;
    height: 90px;
    border: 2px solid var(--secondary-accent-color);
    margin-bottom: 15px;
    overflow: hidden;
    background-color: #00101a;
    flex-shrink: 0; /* Prevent avatar from shrinking */
}
.avatar-container img { width: 100%; height: 100%; object-fit: cover; }
.identity-name {
    font-size: 1.7em;
    font-weight: 500;
    color: #ffffff;
    margin-bottom: 5px;
}
.mbti-type {
    font-size: 1.1em;
    color: var(--accent-color);
    margin-bottom: 12px;
    font-family: var(--font-mono);
}
.description-wrapper { /* New wrapper for description consistency */
    flex-grow: 1; /* Allow description to take available space */
    width: 100%;
    display: flex;
    align-items: center; /* Center text vertically if it's short */
    justify-content: center;
    margin-bottom: 18px;
}
.description {
    font-size: 0.95em;
    line-height: 1.5;
    max-width: 320px;
    min-height: 80px; /* Minimum height for description text area */
    /* margin-bottom: 18px; Removed as wrapper handles spacing */
}
.keywords-container {
    margin-bottom: 18px;
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 5px;
    width: 100%; /* Ensure it takes card width */
}
.keyword {
    background-color: rgba(0, 80, 96, 0.3);
    border: 1px solid var(--border-color);
    color: var(--secondary-accent-color);
    padding: 3px 8px;
    font-size: 0.8em;
    font-family: var(--font-mono);
}
.restart-button {
    display: inline-block;
    padding: 10px 25px;
    font-size: 1.1em;
    background-color: var(--secondary-accent-color);
    color: var(--bg-color);
    border: 1px solid var(--accent-color);
    text-decoration: none;
    cursor: pointer;
    transition: background-color 0.3s ease, color 0.3s ease;
    margin-top: auto; /* Push to bottom if card content is short */
    font-weight: 600;
}
.restart-button:hover {
    background-color: var(--accent-color);
    color: var(--bg-color);
}

/* --- Responsive Adjustments --- */
@media (max-width: 768px) {
    :root {
        --min-content-height: 250px;
        --min-card-height: 400px;
    }
    h1 { font-size: 1.8em; }
    h2 { font-size: 1.4em; }
    h3 { font-size: 1.2em; }
    .start-container h1 { font-size: 2em; }
    .start-button { padding: 10px 20px; font-size: 1.1em; }
    .question-title { font-size: 1.3em; }
    .scenario-text { font-size: 1em; min-height: 50px; }
    .identity-name { font-size: 1.5em; }
    .mbti-type { font-size: 1em; }
    .description { font-size: 0.9em; min-height: 70px; }
}

@media (max-width: 480px) {
    body { font-size: 15px; }
    .container { padding: 15px 10px; margin-top: 10px; margin-bottom: 10px; }
    .start-container { padding: 20px 10px; min-height: calc(100vh - 20px - 20px); }
    .start-container h1 { font-size: 1.7em; margin-bottom: 20px; }
    .start-container p { font-size: 0.95em; margin-bottom: 25px; }
    .start-button { width: 100%; padding: 12px; font-size: 1em; }
    .progress-bar-container { margin-bottom: 15px; }
    .question-title { font-size: 1.2em; }
    .scenario-text { font-size: 0.95em; min-height: 40px;}
    .knowledge-point { font-size: 0.85em; padding: 8px; min-height: 30px; }
    .option-label { padding: 10px; }
    .option-label input[type="radio"] { transform: scale(1.1); }
    .identity-card { padding: 15px; min-height: var(--min-card-height); }
    .avatar-container { width: 80px; height: 80px; }
    .identity-name { font-size: 1.4em; }
    .mbti-type { font-size: 0.95em; }
    .description { font-size: 0.85em; min-height: 60px; }
    .keyword { font-size: 0.75em; padding: 2px 6px;}
    .restart-button { width: 100%; padding: 12px; font-size: 1em; }
}