@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;600;700&display=swap');

/* --- UTILITY & STRUCTURAL RESET --- */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    padding-top: 95px;
    padding-bottom: 60px;
    background-color: #000000;
    color: #E0E0E0;
    font-family: 'Inter', sans-serif;
    font-size: 18px;
    line-height: 1.6;
    overflow-x: hidden; /* Prevent any element from causing horizontal scroll */
}

h2 {
    font-weight: 700;
    font-size: 28px;
}

/* --- CONTAINER (Pencegah Mentok Kanan-Kiri Konten Utama) --- */
.container {
    max-width: 1200px;
    width: 90%;
    margin: 0 auto;
    box-sizing: border-box;
}

/* --- HEADER / NAVBAR (Menjuntang Penuh Kiri-Kanan) --- */
header {
    width: 100%;
    border-bottom: 1px solid #121212;
    position: fixed;
    top: 0;
    left: 0;
    background: #000000; 
    z-index: 1000;
}

.header-content {
    height: 70px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0 40px; 
    position: relative;
}
.logo-pic-wrapper {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 35px;
    height: 35px;
    border-radius: 50%;
    overflow: hidden;
    box-sizing: border-box;
    border: 1px solid #121212;
    background: linear-gradient(
      to top,
      rgb(255, 0, 0), 
      rgb(0, 0, 255), 
      rgb(0, 255, 0), 
      rgb(255, 0, 0)
    );
    background-size: auto 200%;
    animation: rgb-gradient-animation 8s linear infinite;
    box-shadow: inset 0 0 0 1px #000000;
}

.logo-pic {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
    background-color: transparent;
}

.nav-title {
  font-weight: bold;
  position: absolute;
  left: 50%;
  transform: translateX(-50%);
  text-align: center;
  white-space: nowrap;
}

/* Container Formatting (Enlarged for a prominent display) */
.iq-container {
    display: flex;
    flex-direction: row;
    align-items: center;
    justify-content: space-between;
    background-color: transparent; 
    padding: 30px;               /* More interior padding space */
    border-radius: 12px;
    max-width: 920px;            /* Drastically expanded from 780px to be bigger */
    margin: 30px auto;
    gap: 50px;                   /* Larger layout separator gap */
    font-family: 'Calibri', 'Segoe UI', sans-serif;
}

/* Side Sections Layout Scaling Allocation */
.iq-text-side {
    flex: 0 0 280px;             /* Upgraded text panel column allocation */
    display: flex;
    flex-direction: column;
}

.iq-graph-side {
    flex: 1;
    max-width: 560px;            /* Significantly enlarged the maximum graph display canvas size */
}

.iq-graph-side svg text {
    font-family: 'Calibri', 'Segoe UI', sans-serif;
}

/* Typography Modifications */
.iq-label {
    color: #666666;
    font-size: 14px;             /* Increased label size */
    text-transform: uppercase;
    letter-spacing: 1.5px;
}

.iq-score {
    font-size: 48px;             /* Bumped header display size from 40px to 48px */
    font-weight: bold;
    margin: 8px 0;
}

.iq-desc {
    color: #888888;
    font-size: 14px;             /* Upgraded description tag clarity read */
    line-height: 1.4;
}

/* Pulse Element Settings */
.graph-marker-pulse {
    transform-origin: 251px 82.5px;
    animation: marker-pulse-glow 2s ease-out infinite;
}

@keyframes marker-pulse-glow {
    0% { transform: scale(0.5); opacity: 1; }
    100% { transform: scale(1.6); opacity: 0; }
}


.rgb-word {
  background: linear-gradient(
    to top,
    rgb(255, 0, 0), 
    rgb(0, 0, 255), 
    rgb(0, 255, 0), 
    rgb(255, 0, 0)
  );
  
  /* Stretch the background so it can move smoothly */
  background-size: auto 200%;
  
  /* Mask the background so it only fills the text letters */
  -webkit-background-clip: text;
  background-clip: text;
  
  /* Hide the text color so the gradient background shows through */
  -webkit-text-fill-color: transparent;
  
  /* Move the background position over time */
  animation: rgb-gradient-animation 8s linear infinite;
}

@keyframes rgb-gradient-animation {
  0% {
    background-position: center 0%;
  }
  100% {
    background-position: center 200%;
  }
}


.hotkeys-placeholder {
    display: flex;
    gap: 10px;
}

.hotkey-circle {
    width: 28px;
    height: 28px;
    border: 1px solid #121212;
    border-radius: 50%;
    background-color: #E0E0E0;
    transition: transform 0.2s ease;
    box-sizing: border-box !important;
    cursor: pointer;
    display: flex;
    justify-content: center;
    align-items: center;
}
.hotkey-circle img {
    width: 12px !important;
    height: 12px !important;
}

.hotkey-circle:hover {
    transform: scale(1.15);
}

/* --- KOTAK KERANGKA GLOBAL (Murni Dekorasi Objek) --- */
.box {
    border: 1px solid #121212;
    border-radius: 20px; 
    padding: 2rem;
}

/* --- HERO SECTION LAYOUT (Pengaturan Jarak Khusus Elemen Internal) --- */
.hero-pic {
    aspect-ratio: 108 / 25;
    height: auto;
    width: 100%;
    display: flex;
    justify-content: center;
    align-items: center;
    border-style: dashed;
    border-color: #121212;
    margin-bottom: 20px; /* Jarak khusus antara foto dan teks intro di bawahnya */
}

.hero-intro {
    min-height: 120px;
}

/* --- SAKRAL & SIMETRIS SECTION SPACING --- */
.section-title {
    text-align: center;
    /* Jarak atas dan bawah teks judul dibuat sama persis (50px) tanpa intervensi collapse margin */
    margin-top: 50px;
    margin-bottom: 50px; 
    font-weight: 700;
    font-size: 36px;
}



/* --- GRID SYSTEM (Menggunakan 'gap' murni untuk jarak internal antar kotak) --- */
.grid-3 {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
}

.grid-1 {
    display: grid;
    grid-template-columns: 1fr;
    gap: 20px;
}

/* --- LINKEDIN POST CARDS --- */
.update-box {
    display: flex;
    flex-direction: column;
    gap: 10px;
    position: relative;
    text-decoration: none;
    color: inherit;
    min-height: 400px;
}

.post-label {
    position: absolute;
    top: 20px;
    left: 20px;
    background: rgba(0,0,0,0.7);
    color: white;
    padding: 4px 10px;
    border-radius: 4px;
    font-size: 0.8em;
    font-weight: bold;
    z-index: 2; /* Ensures it stays on top of the image */
}

.post-image {
    width: 100%;
    height: 150px;
    object-fit: cover;
    border-radius: 8px;
}

.grid-1 .post-image {
    height: 300px;
}

.post-desc {
    font-size: 0.9em;
    margin: 0;
}

.post-text-content {
    display: -webkit-box;
    -webkit-line-clamp: 3;
    -webkit-box-orient: vertical;
    overflow: hidden;
    text-overflow: ellipsis;
}

.post-text-content.expanded {
    -webkit-line-clamp: unset;
}

.read-more-btn {
    background: none;
    border: none;
    color: #B0B0B0;
    cursor: pointer;
    padding: 0;
    font-size: 0.9em;
    text-decoration: underline;
    text-align: left;
    align-self: flex-start;
    margin-top: 8px;
}

.read-more-btn:hover {
    color: #E0E0E0;
}

.post-stats {
    display: flex;
    gap: 15px;
    font-size: 0.85em;
    color: #666;
    margin-top: 5px;
}

.post-btn {
    margin-top: auto;
    text-align: center;
    background: #E0E0E0;
    color: #000000;
    padding: 10px;
    background: transparent;
    color: #B0B0B0;
    padding: 8px 16px;
    border-radius: 8px;
    text-decoration: none;
    font-weight: bold;
    transition: transform 0.2s, background-color 0.2s, color 0.2s;
    border: none;
    font-weight: 600;
    transition: all 0.2s ease;
    border: 1px solid #333;
    cursor: pointer;
    font-family: inherit; /* Ensure consistent font family */
    font-size: 16px;
    font-size: 14px;
}

.post-btn:hover {
    background-color: #B0B0B0;
    transform: translateY(-5px);
    background-color: #1a1a1a;
    border-color: #555;
    color: #E0E0E0;
    transform: translateY(-2px);
}

.grid-2x2 {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 20px;
}

.hub-box {
    padding: 16px;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 12px;
    text-decoration: none;
    color: inherit;
    transition: transform 0.2s, background-color 0.2s;
}

.hub-box:hover {
    background-color: #111111;
    transform: translateY(-5px);
}

.hub-box img {
    width: 50px;
    height: 50px;
    object-fit: contain;
    background-color: #E0E0E0;
    border-radius: 12px;
    padding: 8px;
}

.hub-box h3 {
    font-size: 20px;
    color: #E0E0E0;
    margin: 0;
}

.hub-box p {
    font-size: 0.9em;
    color: #A0A0A0;
    text-align: left;
    margin: 0;
}

/* --- FOOTER LAYOUT --- */
footer.contact-footer {
    text-align: center;
    margin-top: 60px; /* Jarak simetris dari grid paling bawah ke footer */
    padding-top: 30px;
    padding-bottom: 20px;
    border-top: 1px solid #121212;
    color: #B0B0B0;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 25px;
}

.footer-sections {
    display: flex;
    flex-direction: row;
    justify-content: center;
    gap: 60px;
    flex-wrap: wrap;
    width: 100%;
}

.footer-section {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 15px;
}

.footer-title {
    font-size: 20px;
    color: #E0E0E0;
    margin: 0;
    font-weight: bold;
}

.footer-links {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 20px;
    flex-wrap: wrap;
}

.footer-links a {
    display: inline-block;
    transition: transform 0.2s ease, opacity 0.2s ease;
}

.footer-links a:hover {
    transform: translateY(-3px);
    opacity: 0.8;
}

.footer-links img {
    width: 32px;
    height: 32px;
    object-fit: cover;
    border-radius: 6px;
    background-color: transparent;
}

img.logo-gmail {
    background-color: #FFFFFF;
    object-fit: contain;
    padding: 2px;
}

img.logo-github {
    background-color: #FFFFFF;
}

.footer-text {
    font-size: 16px;
}

/* --- RESPONSIVE GRID --- */
.mobile-title {
    display: none;
}

@media (max-width: 768px) {
    .desktop-title {
        display: none;
    }
    .mobile-title {
        display: inline;
    }

    /* Tighter header padding on mobile */
    .header-content {
        padding: 0 12px;
    }

    /* Prevent centered title from overflowing into buttons */
    .nav-title {
        font-size: 14px;
        max-width: 40%;
        overflow: hidden;
        text-overflow: ellipsis;
        white-space: nowrap;
    }

    .grid-3, .grid-1, .grid-2x2 {
        grid-template-columns: 1fr;
    }

    .section-title {
        margin-top: 35px;
        margin-bottom: 35px;
    }

    .iq-container {
        flex-direction: column;
        padding: 20px;
        gap: 30px;
        text-align: center;
    }

    .iq-text-side {
        flex: 1 1 auto;
        align-items: center;
    }

    .iq-graph-side {
        width: 100%;
        max-width: 100%;
    }

    /* Portrait font size reductions */
    body {
        font-size: 15px !important;
    }
    h2 {
        font-size: 22px !important;
    }
    .section-title {
        font-size: 26px !important;
    }
    .hub-box h3 {
        font-size: 17px !important;
    }
    .footer-title {
        font-size: 17px !important;
    }
    .footer-text {
        font-size: 13.5px !important;
    }
    .leaderboard-list {
        font-size: 14px !important;
    }
    .message-content {
        font-size: 13.5px !important;
    }
    .leaderboard-search input {
        font-size: 12.5px !important;
    }
    .game-details p {
        font-size: 13.5px !important;
    }
    .nim-message, .tictactoe-message {
        font-size: 14px !important;
    }
    /* Generic tag and inline style overrides across all pages */
    h1[style*="font-size: 32px"], h1[style*="font-size:32px"] { font-size: 22px !important; }
    h2[style*="font-size: 28px"], h2[style*="font-size:28px"] { font-size: 20px !important; }
    h2[style*="font-size: 18px"], h2[style*="font-size:18px"] { font-size: 15px !important; }
    h3[style*="font-size: 26px"], h3[style*="font-size:26px"] { font-size: 20px !important; }
    h3[style*="font-size: 18px"], h3[style*="font-size:18px"] { font-size: 15px !important; }
    h3[style*="font-size: 1.2em"], h3[style*="font-size:1.2em"] { font-size: 1.05em !important; }
    p[style*="font-size: 16px"], p[style*="font-size:16px"] { font-size: 14px !important; }
    p[style*="font-size: 15px"], p[style*="font-size:15px"] { font-size: 13.5px !important; }
    p[style*="font-size: 14.5px"], p[style*="font-size:14.5px"] { font-size: 12.5px !important; }
    p[style*="font-size: 14px"], p[style*="font-size:14px"] { font-size: 12.5px !important; }
    p[style*="font-size: 13px"], p[style*="font-size:13px"] { font-size: 11.5px !important; }
    p[style*="font-size: 12px"], p[style*="font-size:12px"] { font-size: 11px !important; }
    li[style*="font-size: 16px"], li[style*="font-size:16px"] { font-size: 14px !important; }
    ul[style*="font-size: 15px"], ul[style*="font-size:15px"] { font-size: 13px !important; }
    strong[style*="font-size: 13.5px"], strong[style*="font-size:13.5px"] { font-size: 11.5px !important; }
    label[style*="font-size: 15px"], label[style*="font-size:15px"] { font-size: 13.5px !important; }
    label[style*="font-size: 14px"], label[style*="font-size:14px"] { font-size: 12.5px !important; }
    label[style*="font-size: 13.5px"], label[style*="font-size:13.5px"] { font-size: 11.5px !important; }
    span[style*="font-size: 14px"], span[style*="font-size:14px"] { font-size: 12.5px !important; }

    /* Class overrides across all project & profile pages */
    .tech-badge { font-size: 11.5px !important; }
    .coming-soon-banner h2 { font-size: 22px !important; }
    .coming-soon-banner p { font-size: 13.5px !important; }
    .item-title { font-size: 14.5px !important; }
    .item-subtitle, .item-meta { font-size: 12.5px !important; }
    .ps-card h3 { font-size: 16px !important; }
    .finding-card h3 { font-size: 15px !important; }
    .pub-title { font-size: 14px !important; }
    .dataset-name { font-size: 13px !important; }
    .pub-meta { font-size: 11.5px !important; }
    .pub-download { font-size: 11.5px !important; }
    
    /* Algorithm Page overrides */
    .metric-card .metric-value {
        font-size: 28px !important;
    }
    .section-header {
        font-size: 14px !important;
    }
    .submission-info a {
        font-size: 14px !important;
    }
    .submission-date {
        font-size: 12px !important;
    }
    .loader-text {
        font-size: 14px !important;
    }
    .skill-tag {
        font-size: 12px !important;
    }
}

/* Animated Home Button */
.home-btn-container {
    display: flex;
    align-items: center;
    background: transparent;
    border-radius: 20px;
    text-decoration: none;
    overflow: hidden;
    cursor: pointer;
    transition: background 0.3s ease;
    padding: 2px;
}
.home-btn-container:hover {
    background: #121212;
}

.home-text {
    max-width: 0;
    opacity: 0;
    color: #ffffff;
    font-size: 14px;
    font-weight: bold;
    white-space: nowrap;
    overflow: hidden;
    transition: max-width 0.4s ease, opacity 0.4s ease, margin-right 0.4s ease, margin-left 0.4s ease;
    margin-right: 0;
    margin-left: 0;
}

.home-btn-container:hover .home-text {
    max-width: 60px;
    opacity: 1;
    margin-right: 8px;
    margin-left: 10px;
}

/* --- GAMES PAGE --- */
.games-layout {
    display: flex;
    gap: 30px;
    align-items: stretch;
}

.games-sidebar {
    flex: 0 0 350px;
    display: flex;
    flex-direction: column;
}

.games-main {
    flex: 1;
    display: flex;
    flex-direction: column;
}

.chat-container {
    display: flex;
    flex-direction: column;
    gap: 15px;
}

.chat-message {
    display: flex;
    gap: 15px;
    align-items: flex-start;
}

.bot-avatar {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    object-fit: cover;
    border: 1px solid #121212;
}

.message-content {
    background: #111111;
    padding: 10px 15px;
    border-radius: 12px;
    border-top-left-radius: 0;
    font-size: 15px;
    color: #E0E0E0;
}

.chat-input-placeholder {
    display: flex;
    gap: 10px;
    margin-top: 10px;
}

.chat-input-placeholder input {
    flex: 1;
    padding: 10px;
    border-radius: 8px;
    border: 1px solid #333;
    background: #000;
    color: #888;
}

.chat-input-placeholder button {
    padding: 10px 20px;
    border-radius: 8px;
    border: none;
    background: #333;
    color: #888;
    font-weight: bold;
}

.leaderboard-search input {
    padding: 6px 12px;
    border-radius: 6px;
    border: 1px solid #333;
    background: #111;
    color: #E0E0E0;
    font-size: 14px;
    width: 130px;
}

.leaderboard-list {
    list-style-position: inside;
    padding: 0;
    margin: 0;
    font-size: 16px;
}

.leaderboard-list li {
    display: flex;
    justify-content: space-between;
    padding: 8px 0;
    border-bottom: 1px solid #111111;
}

.leaderboard-list li:last-child {
    border-bottom: none;
}

.lb-name {
    font-weight: bold;
    color: #E0E0E0;
}

.lb-score {
    color: #A0A0A0;
}

.leaderboard-pagination {
    display: flex;
    justify-content: flex-end;
    margin-top: 15px;
}

.leaderboard-pagination .next-btn {
    background: none;
    border: none;
    color: #B0B0B0;
    cursor: pointer;
    padding: 0;
    font-size: 0.9em;
    text-decoration: underline;
    transition: color 0.2s;
}

.leaderboard-pagination .next-btn:hover:not(:disabled) {
    color: #E0E0E0;
}

.leaderboard-pagination .next-btn:disabled {
    color: #666;
    cursor: not-allowed;
    text-decoration: none;
}

.vertical-games-list {
    display: flex;
    flex-direction: column;
    gap: 20px;
    height: 100%;
}

.game-card {
    flex: 1;
    display: flex;
    flex-direction: row;
    align-items: center;
    justify-content: space-between;
    text-align: left;
    padding: 20px 24px;
}

.game-info {
    display: flex;
    align-items: center;
    gap: 20px;
}

.game-icon-placeholder {
    font-size: 36px;
    margin-bottom: 0;
}

.game-details h3 {
    margin-bottom: 5px;
}

.game-details p {
    color: #888;
    font-size: 15px;
    margin: 0;
}

@media (max-width: 900px) {
    .games-layout {
        flex-direction: column;
        gap: 20px; /* Add gap for consistent spacing between all items */
    }

    /* On mobile, flatten the sidebar and main content to reorder them freely */
    .games-sidebar,
    .games-main {
        display: contents;
    }

    /* Remove inline margins that interfere with the new gap-based layout */
    .games-layout > .box {
        margin: 0 !important;
    }    

    .games-sidebar {
        flex: auto;
        width: 100%;
    }
    .game-card {
        flex-direction: column;
        text-align: center;
        gap: 15px;
    }
    .game-info {
        flex-direction: column;
        gap: 10px;
    }
}

.nim-game-box {
    position: relative;
    width: 100%;
    height: 450px; /* Shrunk height for a more compact view */
    overflow: hidden; /* Hide sticks flying off */
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    align-items: center;
}

.nim-back-btn {
    position: absolute;
    top: 24px;
    left: 24px;
    background-color: #222;
    color: #aaa;
    text-decoration: none;
    z-index: 50;
}

.nim-restart-btn {
    background-color: #442222;
    color: #f5c5c5;
}

.nim-overlay {
    position: fixed;
    z-index: 100; /* Above game elements, below header */
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.9); /* Darker overlay */
    display: none;
    justify-content: center;
    align-items: center;
    text-align: center;
}

.nim-overlay-content {
    background-color: #000;
    padding: 30px;
    border-radius: 15px;
    border: 1px solid #333;
    max-width: 450px;
    width: 90%;
}

.nim-overlay-content h3 {
    color: #E0E0E0;
    margin-bottom: 15px;
}

.nim-overlay-content p {
    color: #A0A0A0;
    font-size: 16px;
    margin-bottom: 20px;
}

.nim-game-area {
    width: 100%;
    height: 100%;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    align-items: center;
}

.nim-table-background {
    width: 100%;
    height: 70%; /* Area for sticks */
    background-image: url('../wood_table.jpeg');
    background-size: cover;
    background-position: center;
    border-radius: 10px;
    position: relative;
    overflow: hidden; /* Ensure sticks don't go outside table */
    display: flex;
    justify-content: center;
    align-items: center;
}

.nim-sticks-container {
    position: absolute;
    width: 90%;
    height: 90%;
    /* This container will hold absolutely positioned matchstick images */
}

.nim-stick {
    position: absolute;
    width: 50px; /* Increased size again */
    height: auto;
    transform-origin: bottom center; /* For rotation */
    opacity: 0;
    transition: transform 0.3s ease-out, opacity 0.25s ease-out, left 0.3s, top 0.3s;
}

.nim-stick.visible {
    opacity: 1;
}

.nim-stick.removed {
    opacity: 0;
}

.nim-bottom-panel {
    flex: 1; /* Make it take up the remaining vertical space */
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center; /* Center the controls within the fixed space */
    gap: 15px;
    width: 100%;
}

#nim-initial-setup {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 15px;
    width: 100%;
}

.nim-message {
    color: #A0A0A0;
    font-size: 16px;
    min-height: 26px; /* Adjusted for new font size */
    width: 100%;
    text-align: center;
}

.nim-controls {
    display: flex;
    gap: 15px;
}

.nim-start-controls {
    display: flex;
    align-items: center;
    gap: 10px;
}

.nim-action-bar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    width: 100%;
}

#nim-initial-setup p {
    color: #A0A0A0;
    font-size: 16px;
}

#nim-initial-setup input {
    width: 100px;
    padding: 8px;
    border-radius: 6px;
    border: 1px solid #333;
    background: #000;
    color: #E0E0E0;
    text-align: center;
}

/* --- TIC TAC TOE GAME --- */
.tictactoe-game-box {
    position: relative;
    width: 100%;
    height: auto;
    min-height: 480px; /* Reduced height to remove excess bottom space */
    overflow: hidden;
    display: flex;
    flex-direction: column;
    align-items: center;
}

.tictactoe-back-btn {
    position: absolute;
    top: 24px;
    left: 24px;
    background-color: #222;
    color: #aaa;
    text-decoration: none;
    z-index: 50;
}

.tictactoe-restart-btn {
    background-color: #442222;
    color: #f5c5c5;
}

.tictactoe-overlay {
    position: absolute; /* Changed from fixed to be contained within the game box */
    z-index: 100;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.9);
    display: none;
    justify-content: center;
    align-items: center;
    text-align: center;
    border-radius: 20px; /* Match the parent box */
}

.tictactoe-overlay-content {
    background-color: #000;
    padding: 30px;
    border-radius: 15px;
    border: 1px solid #333;
    max-width: 450px;
    width: 90%;
}

.tictactoe-overlay-content h3 {
    color: #E0E0E0;
    margin-bottom: 15px;
}

.tictactoe-overlay-content p {
    color: #A0A0A0;
    font-size: 16px;
    margin-bottom: 20px;
}

.tictactoe-game-area {
    width: 100%;
    height: 100%;
    display: flex;
    flex-direction: column;
    justify-content: flex-start;
    align-items: center;
    gap: 15px;
}

#tictactoe-message {
    /* Match nim game message style */
    color: #A0A0A0;
    font-size: 16px;
    min-height: 26px;
    font-weight: normal; /* h3 is bold by default */
}

.tictactoe-board-wrapper {
    padding: 20px;
    border: 2px solid #333;
    background-image: url('../paper_background.jpeg');
    background-size: cover;
    border-radius: 8px;
}

.tictactoe-board {
    display: grid;
    grid-template-columns: repeat(3, 100px);
    grid-template-rows: repeat(3, 100px);
    position: relative; /* For drawing the winning line */
}

.tictactoe-cell {
    width: 100px;
    height: 100px;
    border: 2px solid #bdbdbd; /* Lighter grey for grid lines */
    display: flex;
    justify-content: center;
    align-items: center;
    cursor: pointer;
    transition: background-color 0.2s;
    background-color: transparent;
}

/* Remove outer grid borders for a cleaner, hand-drawn look */
.tictactoe-cell:nth-child(-n+3) { /* Top row */
    border-top: none;
}

.tictactoe-cell:nth-child(n+7) { /* Bottom row */
    border-bottom: none;
}

.tictactoe-cell:nth-child(3n+1) { /* Left column */
    border-left: none;
}

.tictactoe-cell:nth-child(3n) { /* Right column */
    border-right: none;
}

.tictactoe-cell:hover {
    background-color: rgba(255, 255, 255, 0.15);
}

.tictactoe-winning-line-svg {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none; /* So it doesn't block clicks */
}

.tictactoe-winning-line {
    stroke: #222;
    stroke-width: 5;
    stroke-linecap: round;
    /* Animation for drawing the line */
    stroke-dasharray: 320; /* A value larger than any possible line length (diagonal is ~311) */
    stroke-dashoffset: 320;
    animation: draw-win-line 0.8s ease-out forwards;
}

.tictactoe-cell svg {
    width: 100%;
    height: 100%;
}

.x-line {
    stroke: #3366CC; /* Blue for player */
    stroke-width: 8;
    stroke-linecap: round;
    /* Length of diagonal is sqrt(40^2 + 40^2) */
    stroke-dasharray: 57;
    stroke-dashoffset: 57;
    animation: draw 0.15s linear forwards;
}

.x-line2 {
    animation-delay: 0.15s; /* Draw second line after the first */
}

.o-circle {
    stroke: #D93025; /* Red for bot */
    stroke-width: 8;
    stroke-linecap: round;
    fill: transparent;
    /* Circumference is 2 * PI * 22 */
    stroke-dasharray: 139;
    stroke-dashoffset: 139;
    animation: draw 0.3s linear forwards;
    transform-origin: 50% 50%;
    transform: rotate(-90deg); /* Start drawing from the top */
}

@keyframes draw {
    to {
        stroke-dashoffset: 0;
    }
}

@keyframes draw-win-line {
    to {
        stroke-dashoffset: 0;
    }
}

.tictactoe-bottom-panel {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 15px;
    width: 100%;
}

/* --- DASHBOARD LAYOUT & DESIGN SYSTEM FOR GAMES --- */
body.dashboard-body {
    padding-top: 75px !important;
    padding-bottom: 0 !important;
    transition: padding-left 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.dashboard-container {
    display: block;
}

.dashboard-sidebar {
    background: #080808;
    border-right: 1px solid #121212;
    display: flex;
    flex-direction: column;
    padding: 0;
    box-sizing: border-box;
    z-index: 100;
    transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1), width 0.3s cubic-bezier(0.4, 0, 0.2, 1), padding 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    scrollbar-width: thin;  /* Firefox */
}
.dashboard-sidebar::-webkit-scrollbar {
    width: 4px;
}
.dashboard-sidebar::-webkit-scrollbar-track {
    background: transparent;
}
.dashboard-sidebar::-webkit-scrollbar-thumb {
    background: #222;
    border-radius: 2px;
}
.dashboard-sidebar::-webkit-scrollbar-thumb:hover {
    background: #444;
}

@media (orientation: landscape) {
    body.dashboard-body {
        padding-left: 300px !important;
    }
    body.dashboard-sidebar-closed {
        padding-left: 0 !important;
    }
    .dashboard-sidebar {
        position: fixed;
        top: 71px;
        left: 0;
        bottom: 0;
        width: 300px;
        overflow-y: auto;
    }
    body.dashboard-sidebar-closed .dashboard-sidebar {
        transform: translateX(-100%);
    }
    .dashboard-main {
        padding: 40px;
        display: flex;
        flex-direction: column;
        gap: 30px;
        max-width: 1200px;
        margin: 0 auto;
        width: 100%;
        box-sizing: border-box;
    }
    .dashboard-grid-2col {
        display: grid;
        grid-template-columns: 1fr 1fr;
        gap: 30px;
    }
    .dashboard-sidebar-toggle {
        display: flex !important;
    }
    body.dashboard-body footer.contact-footer {
        margin-left: -300px !important;
        width: calc(100% + 300px) !important;
        box-sizing: border-box;
        transition: margin-left 0.3s cubic-bezier(0.4, 0, 0.2, 1), width 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    }
    body.dashboard-sidebar-closed footer.contact-footer {
        margin-left: 0 !important;
        width: 100% !important;
    }
}

@media (orientation: portrait) {
    body.dashboard-body {
        padding-left: 0 !important;
    }
    .dashboard-sidebar {
        position: fixed;
        top: 0;
        left: 0;
        bottom: 0;
        width: 300px;
        transform: translateX(-100%);
        z-index: 1100;
        overflow-y: auto;
        background: rgba(8, 8, 8, 0.97);
        backdrop-filter: blur(12px);
    }
    .dashboard-sidebar.dashboard-sidebar--open {
        transform: translateX(0);
    }
    .dashboard-main {
        padding: 24px 20px;
        display: flex;
        flex-direction: column;
        gap: 24px;
    }
    .dashboard-grid-2col {
        display: flex;
        flex-direction: column;
        gap: 24px;
    }
    .dashboard-sidebar-toggle {
        display: none !important;
    }
    .sidebar-back {
        margin: 0 16px 12px 16px !important;
    }
}

/* Collapse / Toggle Button */
.dashboard-sidebar-toggle {
    position: fixed;
    top: calc(71px + 16px);
    left: calc(300px - 16px);
    width: 32px;
    height: 32px;
    border-radius: 50%;
    background: linear-gradient(
        to top,
        rgb(255, 0, 0), 
        rgb(0, 0, 255), 
        rgb(0, 255, 0), 
        rgb(255, 0, 0)
    );
    background-size: auto 200%;
    border: 1px solid #121212;
    color: #fff;
    font-size: 18px;
    line-height: 1;
    cursor: pointer;
    display: none;
    align-items: center;
    justify-content: center;
    z-index: 920;
    transition: transform 0.2s, left 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    animation: rgb-gradient-animation 8s linear infinite;
    will-change: background-position;
}
body.dashboard-sidebar-closed .dashboard-sidebar-toggle {
    left: 4px;
}
.dashboard-sidebar-toggle:hover {
    transform: scale(1.15);
}
.dashboard-sidebar-toggle__arrow {
    display: inline-block;
    transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    transform: rotate(0deg);
}
body.dashboard-sidebar-closed .dashboard-sidebar-toggle__arrow {
    transform: rotate(180deg);
}

.sidebar-hamburger {
    display: none !important;
    background-image: linear-gradient(
        to top,
        rgb(255, 0, 0), 
        rgb(0, 0, 255), 
        rgb(0, 255, 0), 
        rgb(255, 0, 0)
    ) !important;
    background-color: transparent !important;
    background-size: auto 200% !important;
    flex-shrink: 0;
    animation: rgb-gradient-animation 8s linear infinite !important;
    will-change: background-position;
}
.sidebar-hamburger:hover {
    transform: scale(1.15);
}
.sidebar-hamburger img {
    width: 16px !important;
    height: 16px !important;
    object-fit: contain;
    display: block;
    filter: brightness(0) invert(1) !important;
}
@media (orientation: portrait) {
    .hotkeys-placeholder {
        display: flex !important;
    }
    .sidebar-hamburger {
        display: flex !important;
    }
}

/* Dim backdrop overlay for mobile */
.dashboard-sidebar-overlay {
    display: none;
    position: fixed;
    inset: 0;
    background: rgba(0,0,0,0.6);
    z-index: 1050;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}
@media (orientation: portrait) {
    .dashboard-sidebar-overlay {
        display: block;
    }
    .dashboard-sidebar-overlay.visible {
        opacity: 1;
        pointer-events: all;
    }
}

/* Sidebar navigation & menu styles */
.sidebar-header-title {
    font-size: 20px;
    font-weight: 700;
    margin: 15px 0 5px 0;
    color: #fff;
}
.sidebar-menu {
    display: flex;
    flex-direction: column;
    gap: 8px;
    margin-top: 0;
}
.menu-label {
    font-size: 10px;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.12em;
    color: #444;
    padding: 16px 20px 16px 20px;
    margin: 0 !important; /* Force margin to 0 to override inline styles */
    white-space: nowrap;
}
.sidebar-menu .menu-label {
    margin-bottom: -4px; /* Offset flex gap to keep bottom spacing consistent at 20px */
}
.menu-item {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 10px 14px;
    margin: 0 16px;
    background: #0c0c0c;
    border: 1px solid #1a1a1a;
    color: #aaa;
    border-radius: 8px;
    font-size: 14px;
    font-weight: 600;
    text-decoration: none;
    transition: all 0.2s ease;
}
.menu-item:hover {
    border-color: #3366cc;
    color: #fff;
    background: #111;
}
.menu-item.active {
    background: rgba(51, 102, 204, 0.08);
    border-color: #3366cc;
    color: #fff;
}
.dashboard-sidebar .auth-container {
    margin: 0 16px 0 16px !important;
}
.sidebar-nav div[style*="border-top"] {
    margin-bottom: 0 !important;
}
.sidebar-header {
    display: flex;
    flex-direction: column;
    gap: 4px;
}

/* Accordion Rules Component */
.accordion-rules {
    background: #0c0c0c;
    border: 1px solid #1a1a1a;
    border-radius: 12px;
    margin-top: 10px;
    overflow: hidden;
    transition: border-color 0.2s;
}
.accordion-rules:hover {
    border-color: #222;
}
.accordion-rules summary {
    padding: 16px 20px;
    font-size: 15px;
    font-weight: 600;
    color: #fff;
    cursor: pointer;
    user-select: none;
    outline: none;
    transition: background-color 0.2s;
    list-style: none; /* Hide default list style marker */
    display: flex;
    justify-content: space-between;
    align-items: center;
}
.accordion-rules summary::-webkit-details-marker {
    display: none; /* Hide default Safari marker */
}
.accordion-rules summary::after {
    content: '▼';
    font-size: 9px;
    color: #666;
    transition: transform 0.2s;
}
.accordion-rules[open] summary::after {
    transform: rotate(180deg);
}
.accordion-rules summary:hover {
    background-color: #111;
}
.accordion-rules .rules-content {
    padding: 20px;
    border-top: 1px solid #1a1a1a;
    color: #aaa;
    line-height: 1.6;
    font-size: 14px;
}
.accordion-rules .rules-content p {
    margin-bottom: 12px;
}
.accordion-rules .rules-content p:last-child {
    margin-bottom: 0;
}

/* Horizontal Move Log for Mobile/Portrait Mode */
@media (max-width: 768px) {
    .move-log-container {
        max-width: 100% !important;
        width: 100% !important;
    }
    #move-log {
        flex-direction: row !important;
        overflow-x: auto !important;
        overflow-y: hidden !important;
        white-space: nowrap !important;
        max-height: none !important;
        padding-bottom: 8px;
        display: flex !important;
        gap: 16px !important;
    }
    #move-log div {
        display: inline-block !important;
        flex-shrink: 0 !important;
    }
}

.sidebar-nav {
    padding: 16px 0 20px 0;
    display: flex;
    flex-direction: column;
    gap: 4px;
    overflow-y: auto;
    overflow-x: hidden;
    flex: 1;
}

.sidebar-nav::-webkit-scrollbar {
    width: 4px;
}
.sidebar-nav::-webkit-scrollbar-track {
    background: transparent;
}
.sidebar-nav::-webkit-scrollbar-thumb {
    background: #222;
    border-radius: 2px;
}
.sidebar-nav::-webkit-scrollbar-thumb:hover {
    background: #444;
}

/* Back Button styling from project-ml page */
.sidebar-back {
    display: flex;
    align-items: center;
    gap: 8px;
    margin: 0 32px 12px 16px;
    padding: 0 16px;
    height: 36px;
    box-sizing: border-box;
    border-radius: 8px;
    border: 1px solid #ffffff;
    background: #E0E0E0;
    color: #000000;
    font-size: 11px;
    font-weight: 700;
    letter-spacing: 0.04em;
    text-decoration: none;
    cursor: pointer;
    transition: background 0.18s, color 0.18s, border-color 0.18s, transform 0.1s ease;
    white-space: nowrap;
    flex-shrink: 0;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.2);
}
.sidebar-back:hover {
    background: #ffffff;
    color: #000000;
    border-color: #ffffff;
    transform: translateY(-1px);
}
.sidebar-back:active {
    transform: translateY(0);
}
.sidebar-back__arrow {
    font-size: 14px;
    line-height: 1;
}

/* --- Mathematical Equations Responsive Scrollability --- */
.MathJax_Display, 
mjx-container[display="true"], 
.MathJax, 
mjx-container {
    max-width: 100% !important;
    overflow-x: auto !important;
    overflow-y: hidden !important;
    -webkit-overflow-scrolling: touch;
}

@media (max-width: 768px) {
    /* Prevent containers from being forced wide by mathematically long content */
    .ps-card, 
    .project-card, 
    .responsive-grid-2, 
    .system-design-grid {
        min-width: 0 !important;
        overflow-x: hidden !important;
    }

    /* Equation wrapper blocks scroll horizontally instead of bleeding */
    div[style*="background: rgba(0,0,0,0.3)"],
    div[style*="background:rgba(0,0,0,0.3)"],
    div[style*="border-left: 3px solid"],
    div[style*="border-left:3px solid"] {
        max-width: 100% !important;
        overflow-x: auto !important;
        overflow-y: hidden !important;
        white-space: nowrap !important;
        -webkit-overflow-scrolling: touch;
    }

    /* Custom thin scrollbar for equation containers on mobile */
    div[style*="background: rgba(0,0,0,0.3)"]::-webkit-scrollbar,
    div[style*="background:rgba(0,0,0,0.3)"]::-webkit-scrollbar,
    div[style*="border-left: 3px solid"]::-webkit-scrollbar,
    div[style*="border-left:3px solid"]::-webkit-scrollbar {
        height: 3px;
    }
    div[style*="background: rgba(0,0,0,0.3)"]::-webkit-scrollbar-thumb,
    div[style*="background:rgba(0,0,0,0.3)"]::-webkit-scrollbar-thumb,
    div[style*="border-left: 3px solid"]::-webkit-scrollbar-thumb,
    div[style*="border-left:3px solid"]::-webkit-scrollbar-thumb {
        background: #333;
        border-radius: 2px;
    }
}