@import url('https://fonts.googleapis.com/css2?family=Press+Start+2P&display=swap');

:root {
    --primary-color: #202060;
    --secondary-color: #00cccc;
    --text-color: #333;
    --bg-color: #f9f9f9;
    --white: #ffffff;
    --link-color: #0055aa;
    --link-hover-color: #007acc;
    --border-color: #eee;
    --shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}

body {
    font-family: "Helvetica Neue", Arial, "Hiragino Kaku Gothic ProN", "Hiragino Sans", Meiryo, sans-serif;
    background-color: var(--bg-color);
    color: var(--text-color);
    margin: 0;
    padding: 0;
    line-height: 1.6;
    display: flex;
    flex-direction: column;
    min-height: 100vh;
}

/* Header */
header {
    background-color: var(--primary-color);
    color: var(--white);
    padding: 1rem 0;
    box-shadow: var(--shadow);
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
}

body {
    padding-top: 72px;
}

.header-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
}

.logo img {
    height: 50px;
    vertical-align: middle;
}

.logo a {
    color: var(--white);
    text-decoration: none;
    font-size: 1.5rem;
    font-weight: bold;
}

/* Navigation */
nav ul {
    list-style: none;
    padding: 0;
    margin: 0;
    display: flex;
    gap: 20px;
}

nav ul li {
    display: inline-block;
}

nav a {
    color: var(--white);
    text-decoration: none;
    font-weight: 500;
    padding: 8px 12px;
    border-radius: 4px;
    transition: background-color 0.3s;
}

nav a:hover, nav a.active {
    background-color: rgba(255, 255, 255, 0.2);
    color: var(--secondary-color);
    text-decoration: none;
}

/* Main Content */
main {
    flex: 1;
    max-width: 1000px;
    margin: 40px auto;
    padding: 0 20px;
    width: 100%;
    box-sizing: border-box;
    background-color: var(--white);
    box-shadow: var(--shadow);
    padding: 40px;
    border-radius: 8px;
    position: relative; /* For z-index context */
    z-index: 1;
}

h1, h2, h3 {
    color: var(--primary-color);
}

h2 {
    border-bottom: 2px solid var(--secondary-color);
    padding-bottom: 10px;
    margin-top: 40px;
    margin-bottom: 20px;
}

p {
    margin-bottom: 1.5em;
}

a {
    color: var(--link-color);
    text-decoration: none;
}

a:hover {
    color: var(--link-hover-color);
    text-decoration: underline;
}

/* Footer */
footer {
    background-color: var(--primary-color);
    color: var(--white);
    text-align: center;
    padding: 20px 0;
    margin-top: auto;
}

footer p {
    margin: 5px 0;
    font-size: 0.9rem;
}

footer a {
    color: var(--secondary-color);
}

/* Responsive */
@media (max-width: 768px) {
    .header-container {
        flex-direction: column;
        align-items: flex-start;
    }

    nav {
        margin-top: 15px;
        width: 100%;
    }

    nav ul {
        flex-direction: column;
        gap: 10px;
    }

    nav a {
        display: block;
        padding: 10px 0;
    }
    
    main {
        padding: 20px;
        margin: 20px auto;
    }
}

/* Table Styles (for Members) */
.member-section {
    margin-bottom: 40px;
}

.member-card {
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 20px;
    margin-bottom: 20px;
    background-color: #fff;
    box-shadow: 0 1px 3px rgba(0,0,0,0.05);
    transition: transform 0.2s;
}

.member-card:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 6px rgba(0,0,0,0.1);
}

.member-table {
    width: 100%;
    border-collapse: collapse;
}

.member-table td {
    padding: 8px;
    vertical-align: top;
}

.member-label {
    width: 120px;
    font-weight: bold;
    color: var(--primary-color);
    background-color: #f0f4ff;
    border-radius: 4px;
    text-align: center;
    padding: 4px 8px !important;
    display: inline-block;
}

/* Paper List Styles */
ul.paper-list {
    list-style: none;
    padding: 0;
}

ul.paper-list li {
    margin-bottom: 15px;
    padding-left: 20px;
    position: relative;
}

ul.paper-list li::before {
    content: "•";
    color: var(--primary-color);
    font-weight: bold;
    position: absolute;
    left: 0;
}

ol.paper-list {
    padding-left: 30px;
}

ol.paper-list li {
    margin-bottom: 15px;
}

/* Hero Section (Index) */
.hero {
    text-align: center;
    padding: 40px 20px;
    background-color: #f0f4ff;
    border-radius: 8px;
    margin-bottom: 40px;
}

.hero h1 {
    font-size: 2.5rem;
    margin-bottom: 10px;
}

.hero p {
    font-size: 1.2rem;
    color: #666;
}

/* Entrance Page */
.info-box {
    background-color: #f9f9f9;
    border-left: 4px solid var(--secondary-color);
    padding: 15px;
    margin-bottom: 20px;
}

/* Research Grid */
.research-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
    gap: 20px;
    margin-top: 20px;
    /* align-items: stretch; is the default, ensuring equal height */
}

.research-card {
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    height: 100%; /* Fill the grid cell height */
    box-sizing: border-box; /* Include padding in height */
    background-color: var(--white);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 20px;
    text-align: center;
    color: var(--primary-color);
    font-weight: bold;
    transition: all 0.3s ease;
    box-shadow: var(--shadow);
    text-decoration: none;
}

.research-card:hover {
    transform: translateY(-3px);
    box-shadow: 0 4px 8px rgba(0,0,0,0.15);
    background-color: var(--primary-color);
    color: var(--white);
    text-decoration: none;
}

.research-map-container {
    text-align: center;
    overflow-x: auto;
}

img {
    max-width: 100%;
    height: auto;
}

/* --- Gamification / Retro Mode Styles --- */

.click-ripple {
    position: fixed;
    border-radius: 50%;
    transform: translate(-50%, -50%);
    width: 20px;
    height: 20px;
    border: 2px solid var(--secondary-color);
    animation: ripple-anim 0.6s linear forwards;
    pointer-events: none;
    z-index: 9999;
}

@keyframes ripple-anim {
    0% {
        width: 0;
        height: 0;
        opacity: 1;
        border-width: 4px;
    }
    100% {
        width: 100px;
        height: 100px;
        opacity: 0;
        border-width: 0;
    }
}

/* Retro Mode Classes (Toggled via JS) */
body.retro-mode {
    --primary-color: #00ff00; /* Green terminal */
    --secondary-color: #ff00ff; /* Magenta accent */
    --text-color: #00ff00;
    --bg-color: #000000;
    --white: #111111; /* Dark grey for content boxes */
    --link-color: #ffff00;
    --link-hover-color: #ffffff;
    --border-color: #00ff00;
    font-family: 'Press Start 2P', cursive, 'Courier New', Courier, monospace;
}

body.retro-mode main, 
body.retro-mode header, 
body.retro-mode footer,
body.retro-mode .member-card,
body.retro-mode .research-card {
    border: 2px dashed var(--primary-color);
    box-shadow: none;
    background-color: #000;
}

body.retro-mode .member-label {
    background-color: #003300;
    color: #00ff00;
    border: 1px solid #00ff00;
}

body.retro-mode .hero {
    background-color: #001100;
    border: 2px solid var(--primary-color);
}

body.retro-mode nav a:hover {
    background-color: var(--primary-color);
    color: #000;
}

body.retro-mode .info-box {
    background-color: #001100;
    border-left: 4px solid var(--secondary-color);
    color: var(--text-color);
}

/* Feedback Form Styles */
.feedback-form {
    max-width: 600px;
    margin: 0 auto;
}

.google-form-container {
    width: 100%;
    max-width: 640px;
    margin: 0 auto;
    text-align: center;
}

.google-form-container iframe {
    max-width: 100%;
}

.form-group {
    margin-bottom: 20px;
}

.form-group label {
    display: block;
    margin-bottom: 5px;
    font-weight: bold;
}

.form-group input,
.form-group textarea,
.form-group select {
    width: 100%;
    padding: 10px;
    border: 1px solid var(--border-color);
    border-radius: 4px;
    box-sizing: border-box;
    font-family: inherit;
    font-size: 1rem;
}

.form-group textarea {
    resize: vertical;
}

.submit-btn {
    background-color: var(--primary-color);
    color: var(--white);
    border: none;
    padding: 12px 24px;
    font-size: 1rem;
    border-radius: 4px;
    cursor: pointer;
    transition: background-color 0.3s;
}

.submit-btn:hover {
    background-color: var(--secondary-color);
    color: var(--primary-color);
}

body.retro-mode .form-group input,
body.retro-mode .form-group textarea {
    background-color: #000;
    color: #00ff00;
    border: 1px solid #00ff00;
}

body.retro-mode .submit-btn {
    background-color: #003300;
    color: #00ff00;
    border: 1px solid #00ff00;
}

body.retro-mode .submit-btn:hover {
    background-color: #00ff00;
    color: #000;
}