/* --- 1. FONT IMPORT --- */
@import url('https://fonts.googleapis.com/css2?family=Poppins:wght@700&family=Quicksand:wght@500;700&display=swap');

/* --- 2. THEME VARIABLES --- */
:root {
  /* Light Mode (Default) */
  --page-bg-color: #f8faff;
  --content-bg-color: #ffffff;
  --text-color: #212529;
  --header-color: #000000;
  --border-color: #dee2e6;
  --accent-color: #00aaff;
  --accent-glow: rgba(0, 170, 255, 0.2);
  --shadow-color: rgba(0, 0, 0, 0.05);
}

[data-theme="dark"] {
  /* Dark Mode Overrides */
  --page-bg-color: #1a1a1a;
  --content-bg-color: #282828;
  --text-color: #e0e0e0;
  --header-color: #ffffff;
  --border-color: #444444;
  --accent-color: #00ffff;
  --accent-glow: rgba(0, 255, 255, 0.2);
  --shadow-color: rgba(0, 0, 0, 0.4);
}

/* --- 3. ANIMATED BACKGROUND --- */
@keyframes blobMotion {
  0%, 100% { transform: translate(0, 0) scale(1); }
  50% { transform: translate(60px, -40px) scale(1.1); }
}

body::before {
  content: "";
  position: fixed;
  inset: 0;
  z-index: -1;
  background:
    radial-gradient(circle at 30% 70%, rgba(0,170,255,0.25), transparent 60%),
    radial-gradient(circle at 80% 30%, rgba(255,255,255,0.2), transparent 70%);
  filter: blur(60px);
  animation: blobMotion 35s ease-in-out infinite alternate;
}
[data-theme="dark"] body::before {
  background:
    radial-gradient(circle at 30% 70%, rgba(0,255,255,0.15), transparent 70%),
    radial-gradient(circle at 70% 20%, rgba(255,255,255,0.05), transparent 70%);
}



/* --- 4. GENERAL STYLING --- */
html, body, .bd-page {
  background-color: transparent; /* Make all main containers transparent */
}
body {
  color: var(--text-color);
  font-family: 'Quicksand', sans-serif;
}
/* Apply background color only to the main content and sidebar */
.bd-main .bd-content, .bd-sidebar-primary {
  background-color: var(--content-bg-color);
  box-shadow: 0 10px 30px var(--shadow-color);
  border-radius: 24px;
  border: 1px solid var(--border-color);
}
.bd-sidebar-primary {
  margin-left: 1em;
}
/* ... Rest of your general styles ... */
h1, h2, h3, h4, h5, h6 {
  color: var(--header-color);
  border-bottom-color: var(--border-color);
}
a {
  color: var(--accent-color);
  font-weight: 700;
  text-decoration: none;
}
a:hover { text-decoration: underline; }
.bd-sidebar-primary .nav-link { color: var(--text-color); }
.bd-sidebar-primary .nav-link.active {
  background-color: var(--accent-color);
  color: #000000;
  box-shadow: 0 5px 15px var(--accent-glow);
  border-radius: 8px;
}
.search-button__kbd-shortcut { color: var(--text-color); }
.footer-items { color: var(--text-color); }

/* --- 5. HOMEPAGE STYLING --- */
/* Hide titles on all normal pages */
body:not([data-page="index"]) .jb-article > h1:first-of-type {
    display: none;
}

/* Allow homepage title so browser tab works */
body[data-page="index"] .jb-article > h1:first-of-type {
    visibility: hidden;
    height: 0;
    margin: 0;
    padding: 0;
}


.kaomoji {
  text-align: center;
  font-size: 3rem;
  margin-bottom: 0;
  color: var(--text-color);
}
.welcome-header {
  font-family: 'Poppins', sans-serif;
  font-size: 5rem;
  letter-spacing: -2px;
  text-align: center;
  font-weight: 700;
  color: var(--header-color);
  margin-top: -1em !important;
}
.welcome-header .accent { color: var(--accent-color); }
.welcome-subtitle { text-align: center; font-size: 1.2rem; color: var(--text-color); margin-bottom: 3em; }
.homepage .sd-card {
  margin-bottom: 1.2em !important;
  background-color: var(--content-bg-color); /* Match card background */
  border: 1px solid var(--border-color);
  border-radius: 16px;
  box-shadow: none;
  text-align: center;
  padding: 1.5em 1em;
  transition: transform 0.2s ease, box-shadow 0.2s ease, background-color 0.2s ease;
}
.sd-card:hover {
  transform: translateY(-8px);
  box-shadow: 0 15px 30px var(--shadow-color);
  background-color: var(--content-bg-color);
}
.sd-card-body { padding: 0; }
.card-link {
    text-decoration: none;
    color: var(--text-color);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    height: 100%;
}
.card-link:hover, .card-link:hover strong {
    color: var(--accent-color);
    text-decoration: none;
}
.card-link strong {
    font-weight: 700;
    font-size: 1.1em;
    color: var(--header-color);
}
.card-description {
    font-size: 0.9em;
    color: var(--text-color);
    padding: 0 1em;
    margin-top: 0.5em;
    line-height: 1.4;
    opacity: 0.8;
}
.icon-nav-icon {
    width: 48px;
    height: 48px;
    margin: 0 auto 0.8em auto;
    background-color: var(--accent-color);
    -webkit-mask-size: contain;
    mask-size: contain;
    -webkit-mask-repeat: no-repeat;
    mask-repeat: no-repeat;
    -webkit-mask-position: center;
    mask-position: center;
    transition: transform 0.2s ease-in-out;
}
.sd-card:hover .icon-nav-icon { transform: scale(1.2); }
.icon-labs { -webkit-mask-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='24' height='24' viewBox='0 0 24 24' fill='none' stroke='currentColor' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='M10 22h4M8.5 22l1.7-5.1a2 2 0 0 1 1.8-1.4l2 0a2 2 0 0 1 1.8 1.4L17.5 22M7 10h10M7 10l1.1-5a2 2 0 0 1 2-1.5h1.8a2 2 0 0 1 2 1.5L15 10'%3E%3C/path%3E%3C/svg%3E"); mask-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='24' height='24' viewBox='0 0 24 24' fill='none' stroke='currentColor' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='M10 22h4M8.5 22l1.7-5.1a2 2 0 0 1 1.8-1.4l2 0a2 2 0 0 1 1.8 1.4L17.5 22M7 10h10M7 10l1.1-5a2 2 0 0 1 2-1.5h1.8a2 2 0 0 1 2 1.5L15 10'%3E%3C/path%3E%3C/svg%3E");}
.icon-exercises { -webkit-mask-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='24' height='24' viewBox='0 0 24 24' fill='none' stroke='currentColor' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='M12 20h9'%3E%3C/path%3E%3Cpath d='M16.5 3.5a2.121 2.121 0 0 1 3 3L7 19l-4 1 1-4L16.5 3.5z'%3E%3C/path%3E%3C/svg%3E"); mask-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='24' height='24' viewBox='0 0 24 24' fill='none' stroke='currentColor' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='M12 20h9'%3E%3C/path%3E%3Cpath d='M16.5 3.5a2.121 2.121 0 0 1 3 3L7 19l-4 1 1-4L16.5 3.5z'%3E%3C/path%3E%3C/svg%3E");}
.icon-projects { -webkit-mask-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='24' height='24' viewBox='0 0 24 24' fill='none' stroke='currentColor' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='M4.5 16.5c-1.5 1.26-2 5-2 5s3.74-.5 5-2c.71-.84.7-2.3.05-3.1S5.21 15.24 4.5 16.5z'%3E%3C/path%3E%3Cpath d='M12.5 12.5a2.5 2.5 0 0 1-3.54-3.54 2.5 2.5 0 0 1 3.54 3.54z'%3E%3C/path%3E%3Cpath d='M18 18c-5.94 3-9 2-9-2s1-3.06 2-9c1.4-8.58 9-9 9-9s.42 7.6-9 9'%3E%3C/path%3E%3C/svg%3E"); mask-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='24' height='24' viewBox='0 0 24 24' fill='none' stroke='currentColor' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='M4.5 16.5c-1.5 1.26-2 5-2 5s3.74-.5 5-2c.71-.84.7-2.3.05-3.1S5.21 15.24 4.5 16.5z'%3E%3C/path%3E%3Cpath d='M12.5 12.5a2.5 2.5 0 0 1-3.54-3.54 2.5 2.5 0 0 1 3.54 3.54z'%3E%3C/path%3E%3Cpath d='M18 18c-5.94 3-9 2-9-2s1-3.06 2-9c1.4-8.58 9-9 9-9s.42 7.6-9 9'%3E%3C/path%3E%3C/svg%3E");}

/* --- 6. SIDEBAR LOGO SIZE FIX --- */
.sidebar-logo {
    max-width: 80px !important;    /* make smaller, try 70 or 60 if still large */
    margin: 10px auto !important;  /* center it nicely */
    border-radius: 12px;           /* optional: soften corners */
}

/* Reduce sidebar header spacing */
.bd-sidebar .sidebar-header {
    padding-top: 0.5rem !important;
    padding-bottom: 0.5rem !important;
}


/* --- 7. HOMEPAGE SPACING CLEANUP --- */

/* Reduce excess white space below the homepage content */
.bd-content {
    margin-bottom: 1.5rem !important;  /* reduce from large default (~5rem) */
    padding-bottom: 1rem !important;
}

/* Slightly tighten top spacing for the header section */
.welcome-header {
    margin-top: -0.5em !important;  /* was -1em, small adjustment for balance */
    margin-bottom: 0.3em !important;
}

/* Make subtitle closer to header */
.welcome-subtitle {
    margin-top: 0.5em !important;
    margin-bottom: 2em !important;
}


/* --- HOMEPAGE-ONLY CENTERED LAYOUT --- */
.homepage {
    text-align: center;
}

/* Center only the elements inside the homepage */
.homepage .welcome-header,
.homepage .welcome-subtitle,
.homepage .kaomoji,
.homepage .sd-card,
.homepage .grid,
.homepage .grid-item-card {
    margin-left: auto;
    margin-right: auto;
    text-align: center;
}

/* --- DEFAULT CONTENT PAGES (LABS, EXERCISES, PROJECTS) --- */
.bd-content {
    text-align: left !important;
    display: block !important;   /* reset flex layout */
}

/* --- FORCE NORMAL LAYOUT FOR ALL NON-HOMEPAGE CONTENT --- */
body:not(.homepage) .bd-main .bd-content,
.bd-main .bd-content:not(.homepage) {
    display: block !important;
    text-align: left !important;
    align-items: unset !important;
    justify-content: unset !important;
    margin-left: 0 !important;
    margin-right: 0 !important;
}

/* Hide TOC block on homepage */
body[data-page="index"] .bd-toc {
    display: none !important;
}