@font-face {
    font-family: 'Poppins-Bold';
    src: url('fonts/Poppins-Bold.ttf') format('truetype');
    font-weight: bold;
}

@font-face {
    font-family: 'Poppins-Medium';
    src: url('fonts/Poppins-Medium.ttf') format('truetype');
    font-weight: 500;
}

@font-face {
    font-family: 'PJS';
    src: url('./fonts/pjs.ttf') format('truetype');
}

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

body {
    background-color: #000000;
    color: #FFFFFF;
    font-family: 'Poppins-Medium', sans-serif;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

.top-app-bar {
    height: 64px;
    padding: 0 32px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo img {
    height: 30px;
    cursor: pointer;
}

.github-icon img {
    width: 32px;
    height: 32px;
    transition: opacity 0.3s;
}

.github-icon img:hover {
    opacity: 0.8;
}

.white-icon {
    filter: invert(1);
}

.about-content {
    padding: 40px 10% 20px 10%;
    display: flex;
    flex-direction: column;
    gap: 40px;
    flex: 1;
}

.page-title {
    font-family: 'Poppins-Bold', sans-serif;
    font-size: clamp(2.5rem, 6vw, 4rem);
}

.section-title {
    font-family: 'Poppins-Bold', sans-serif;
    font-size: 1.8rem;
    margin-bottom: 20px;
    display: flex;
    align-items: center;
}

.section-title::before {
    content: "";
    width: 5px;
    height: 1.2em;
    background-color: #FFFFFF;
    margin-right: 15px;
}

.section-content {
    font-size: 1.1rem;
    line-height: 1.8;
    color: #E0E0E0;
    max-width: 900px;
}

.text-link {
    color: #FFFFFF;
    font-weight: bold;
    text-decoration: underline;
}

.member-list {
    display: block;
}

.member-card {
    display: flex;
    align-items: center;
    gap: 20px;
    background: #111111;
    padding: 24px;
    border-radius: 16px;
    width: 100%;
    max-width: 100%;
    min-width: 100%;
    box-sizing: border-box;
    overflow: hidden;
    border: 1px solid #222;
    margin-bottom: 20px;
}

.avatar {
    width: 72px;
    height: 72px;
    border-radius: 50%;
    object-fit: cover;
    background: #222;
    border: 2px solid #333;
    flex-shrink: 0;
}

.member-info {
    flex: 1;
    min-width: 0;
}

.member-name {
    font-family: 'Poppins-Bold', sans-serif;
    font-size: 1.25rem;
    margin-bottom: 4px;
    inline-size: 100%;
    overflow-wrap: break-word;
    word-break: break-all;
}

.member-info .member-role {
    font-size: 0.9rem;
    color: #AAAAAA;
    line-height: 1.4;
}

.footer-nav {
    margin-top: 60px;
    padding: 40px 10%;
    display: flex;
    justify-content: space-between;
    align-items: center;
    border-top: 1px solid #222;
    width: 100%;
}

.nav-link {
    display: flex;
    align-items: center;
    gap: 12px;
    text-decoration: none;
    color: #FFFFFF;
    font-weight: bold;
    font-size: 1.2rem;
    transition: transform 0.2s ease, opacity 0.2s;
}

.nav-link:hover { opacity: 0.7; }
.nav-link.back:hover { transform: translateX(-8px); }
.nav-link.forward:hover { transform: translateX(8px); }

.copyright {
    padding: 20px 0;
    text-align: center;
    font-size: 0.8rem;
    color: #666666;
    font-family: 'Poppins-Medium', sans-serif;
    line-height: 1.6;
}

.copyright a { color: #666666; text-decoration: underline; }

.content-container {
    flex: 1;
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0 10%;
}

.text-column {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
}

.title {
    font-family: 'PJS', sans-serif;
    font-size: 5rem;
    margin-bottom: 16px;
}

.description-group {
    font-family: 'Poppins-Medium', sans-serif;
    font-size: 2.5rem;
    line-height: 1.6;
}

.outline-text {
    color: transparent;
    -webkit-text-stroke: 1.2px #FFFFFF;
    display: inline-block;
    min-height: 1.2em;
    border-right: 3px solid #FFFFFF;
    padding-right: 4px;
    animation: cursor-blink 0.8s infinite;
}

@keyframes cursor-blink {
    50% { border-color: transparent; }
}

.button-group {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.learn-more {
    text-decoration: none;
    color: #FFFFFF;
    font-family: 'Poppins-Medium', sans-serif;
    font-size: 1.5rem;
    display: flex;
    align-items: center;
    gap: 12px;
    transition: transform 0.3s ease;
}

.learn-more:hover {
    transform: translateX(8px);
}

.arrow {
    width: 28px;
    height: 28px;
}

.projects-content {
    padding: 40px 10% 20px 10%;
    display: flex;
    flex-direction: column;
    gap: 50px;
    flex: 1;
}

.header-group { margin-bottom: 20px; }
.page-subtitle { font-size: 1.2rem; color: #AAAAAA; margin-top: 10px; }

.project-grid {
    display: flex;
    flex-wrap: wrap;
    gap: 20px;
}

.project-card {
    background: #111111;
    padding: 28px;
    border-radius: 16px;
    min-width: 300px;
    flex: 1;
    max-width: 550px;
    display: flex;
    flex-direction: column;
    gap: 12px;
    border: 1px solid #222;
}

.project-name {
    font-family: 'Poppins-Bold', sans-serif;
    font-size: 1.4rem;
}

.project-desc {
    font-size: 0.95rem;
    color: #BBBBBB;
    line-height: 1.6;
    margin-bottom: 10px;
}

.link-group {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.download-link {
    text-decoration: none;
    color: #FFFFFF;
    font-weight: bold;
    display: flex;
    align-items: center;
    gap: 8px;
    transition: opacity 0.2s;
    font-size: 1rem;
}

.download-link:hover { opacity: 0.7; }

.oin-icon {
    width: 18px;
    height: 18px;
    filter: invert(1);
}

.contact-content {
    padding: 40px 10% 20px 10%;
    display: flex;
    flex-direction: column;
    gap: 40px;
    flex: 1;
}

.contact-section {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.contact-label {
    font-family: 'Poppins-Bold', sans-serif;
    font-size: 1.5rem;
    color: #FFFFFF;
}

.contact-text {
    font-size: 1.1rem;
    line-height: 1.8;
    color: #E0E0E0;
}

.contact-link {
    color: #FFFFFF;
    text-decoration: underline;
    font-weight: bold;
    transition: opacity 0.2s;
}

.contact-link:hover { opacity: 0.7; }

.divider {
    height: 1px;
    background-color: #333333;
    width: 100%;
    max-width: 600px;
    margin: 10px 0;
}

.error-page {
    flex: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 40px 10%;
}

.error-content {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    gap: 20px;
    max-width: 600px;
}

.error-code {
    font-family: 'Poppins-Medium', sans-serif;
    font-size: clamp(4rem, 12vw, 8rem);
    line-height: 1;
    position: relative;
    color: #FFFFFF;
    text-shadow: 0 0 8px rgba(255, 255, 255, 0.18);
    animation: fluorescent-flicker 2.8s infinite;
    font-weight: 400;
}

.error-code::before,
.error-code::after {
    content: '404';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    overflow: hidden;
    pointer-events: none;
}

.error-code::before {
    color: #000000;
    opacity: 0;
    animation: fluorescent-pulse 2.8s infinite;
}

.error-code::after {
    color: #FFFFFF;
    opacity: 1;
    animation: fluorescent-breath 2.8s infinite;
}

.error-message {
    font-size: 1.1rem;
    color: #AAAAAA;
    line-height: 1.8;
}

.error-home-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 12px 24px;
    border: 1px solid #FFFFFF;
    border-radius: 0;
    color: #FFFFFF;
    text-decoration: none;
    transition: transform 0.2s ease, background-color 0.2s ease;
}

.error-home-btn:hover {
    transform: translateY(-2px);
    background-color: rgba(255, 255, 255, 0.08);
}

@keyframes fluorescent-flicker {
    0%, 100% { opacity: 1; filter: brightness(1); }
    8% { opacity: 0.96; filter: brightness(0.9); }
    12% { opacity: 0.75; filter: brightness(0.5); }
    16% { opacity: 0.98; filter: brightness(1.05); }
    24% { opacity: 0.82; filter: brightness(0.7); }
    34% { opacity: 1; filter: brightness(1); }
    48% { opacity: 0.68; filter: brightness(0.45); }
    60% { opacity: 0.95; filter: brightness(0.95); }
    72% { opacity: 0.78; filter: brightness(0.55); }
    84% { opacity: 1; filter: brightness(1.02); }
}

@keyframes fluorescent-pulse {
    0%, 100% { opacity: 0; }
    10% { opacity: 0.18; }
    18% { opacity: 0; }
    32% { opacity: 0.1; }
    48% { opacity: 0; }
    66% { opacity: 0.16; }
    78% { opacity: 0; }
    90% { opacity: 0.12; }
}

@keyframes fluorescent-breath {
    0%, 100% { opacity: 1; filter: brightness(1); }
    10% { opacity: 0.9; filter: brightness(0.8); }
    18% { opacity: 0.7; filter: brightness(0.45); }
    24% { opacity: 1; filter: brightness(1.05); }
    40% { opacity: 0.84; filter: brightness(0.7); }
    56% { opacity: 0.62; filter: brightness(0.35); }
    72% { opacity: 0.92; filter: brightness(0.9); }
    84% { opacity: 0.76; filter: brightness(0.55); }
}

@media (max-width: 900px) {
    .content-container {
        flex-direction: column;
        justify-content: flex-start;
        padding-top: 15vh;
        align-items: flex-start;
        gap: 40px;
    }
    .title { font-size: 3.5rem; }
    .description-group { font-size: 1.8rem; }
    .button-group { gap: 15px; }
    .learn-more { font-size: 1.2rem; }
}

@media (max-width: 768px) {
    .about-content { padding-left: 6%; padding-right: 6%; }
    .member-card { min-width: 100%; }
    .footer-nav {
        flex-direction: column;
        align-items: flex-start;
        gap: 24px;
        padding-left: 6%;
    }

    .projects-content { padding-left: 6%; padding-right: 6%; }
    .project-card { min-width: 100%; }

    .contact-content { padding-left: 6%; padding-right: 6%; }
    .footer-nav { padding-left: 6%; }
}