/* ==========================================================================
   1. DARK PALETTE VARIABLES & BASE STYLES
   ========================================================================== */
:root {
    --bg-dark: #07090e;
    --bg-card: #0f131d;
    --bg-accent: #161c2b;
    --text-main: #e2e8f0;
    --text-sub: #8b9bb4;
    --aqua-glow: #00f5d4;
    --aqua-dark: #0077b6;
    --border-color: #1e293b;
}

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

html {
    scroll-behavior: smooth;
}

body {
    background-color: var(--bg-dark);
    color: var(--text-main);
    font-family: 'Rajdhani', sans-serif;
    font-size: 1.1rem;
    line-height: 1.6;
}

/* ==========================================================================
   2. HEADER & NAVIGATION
   ========================================================================== */
header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 20px 8%;
    background-color: rgba(7, 9, 14, 0.95);
    border-bottom: 2px solid var(--border-color);
    position: sticky;
    top: 0;
    z-index: 1000;
}

.logo {
    font-family: 'Press Start 2P', cursive;
    font-size: 1rem;
    color: var(--aqua-glow);
    text-shadow: 0 0 10px rgba(0, 245, 212, 0.5);
}

nav ul {
    display: flex;
    list-style: none;
    gap: 25px;
}

nav ul li a {
    color: var(--text-main);
    text-decoration: none;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 1px;
    transition: color 0.3s;
}

nav ul li a:hover,
nav ul li a.active {
    color: var(--aqua-glow);
}

/* ==========================================================================
   3. HERO BANNER
   ========================================================================== */
.hero {
    height: 75vh;
    display: flex;
    justify-content: center;
    align-items: center;
    text-align: center;
    background: radial-gradient(circle at center, #111a2e 0%, var(--bg-dark) 80%);
    border-bottom: 1px solid var(--border-color);
    padding: 0 20px;
}

.badge {
    font-family: 'Press Start 2P', cursive;
    font-size: 0.6rem;
    color: var(--aqua-glow);
    background: rgba(0, 245, 212, 0.1);
    padding: 8px 12px;
    border: 1px solid var(--aqua-glow);
    border-radius: 4px;
    display: inline-block;
    margin-bottom: 20px;
}

.hero h1 {
    font-family: 'Press Start 2P', cursive;
    font-size: 2.8rem;
    color: #ffffff;
    margin-bottom: 20px;
    text-shadow: 3px 3px 0px #000, 0 0 20px rgba(0, 245, 212, 0.4);
}

.hero p {
    font-size: 1.4rem;
    color: var(--text-sub);
    max-width: 600px;
    margin: 0 auto 30px auto;
}

.hero-btns {
    display: flex;
    gap: 15px;
    justify-content: center;
}

/* ==========================================================================
   4. BUTTONS & GENERAL LAYOUT
   ========================================================================== */
.btn {
    padding: 12px 28px;
    font-size: 1.1rem;
    font-weight: bold;
    text-decoration: none;
    text-transform: uppercase;
    border-radius: 4px;
    transition: all 0.3s ease;
}

.btn-primary {
    background-color: var(--aqua-glow);
    color: #000;
    box-shadow: 0 0 15px rgba(0, 245, 212, 0.4);
}

.btn-primary:hover {
    background-color: #fff;
    box-shadow: 0 0 25px rgba(255, 255, 255, 0.8);
    transform: translateY(-2px);
}

.btn-secondary {
    background-color: transparent;
    color: var(--text-main);
    border: 2px solid var(--border-color);
}

.btn-secondary:hover {
    border-color: var(--aqua-glow);
    color: var(--aqua-glow);
}

.content-section {
    padding: 80px 8%;
}

.projects-section {
    padding: 80px 8%;
}

.alt-bg {
    background-color: var(--bg-card);
    border-top: 1px solid var(--border-color);
    border-bottom: 1px solid var(--border-color);
}

h2 {
    font-family: 'Press Start 2P', cursive;
    font-size: 1.4rem;
    color: var(--aqua-glow);
    margin-bottom: 40px;
    text-align: center;
}

/* ==========================================================================
   5. VIDEO CARDS & THUMBNAILS
   ========================================================================== */
.video-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
}

.project-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
}

.video-card-link {
    text-decoration: none;
    color: inherit;
    display: block;
}

.video-card {
    background-color: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    overflow: hidden;
    transition: transform 0.3s, border-color 0.3s;
    display: flex;
    flex-direction: column;
}

.thumbnail-container {
    position: relative;
    width: 100%;
    aspect-ratio: 16 / 9;
    overflow: hidden;
    background-color: var(--bg-accent);
}

.thumbnail-img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
    transition: transform 0.3s ease;
}

.play-overlay {
    position: absolute;
    inset: 0;
    background: rgba(7, 9, 14, 0.6);
    color: var(--aqua-glow);
    font-weight: bold;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transition: opacity 0.3s ease;
}

.video-card:hover .thumbnail-img {
    transform: scale(1.05);
}

.video-card:hover .play-overlay {
    opacity: 1;
}

.video-card:hover {
    transform: translateY(-5px);
    border-color: var(--aqua-glow);
}

.card-info {
    padding: 20px;
}

.tag {
    font-size: 0.8rem;
    font-weight: bold;
    color: var(--aqua-glow);
    text-transform: uppercase;
}

.card-info h3 {
    font-size: 1.3rem;
    margin: 8px 0;
    color: #fff;
}

.card-info p {
    color: var(--text-sub);
    font-size: 1rem;
}

/* ==========================================================================
   6. BLOG FEED & EXPANDABLE ARTICLES (blog.html)
   ========================================================================== */
.blog-hero {
    padding: 60px 8% 40px 8%;
    text-align: center;
    background: radial-gradient(circle at center, #111a2e 0%, var(--bg-dark) 80%);
    border-bottom: 1px solid var(--border-color);
}

.blog-hero h1 {
    font-family: 'Press Start 2P', cursive;
    font-size: 2.2rem;
    margin: 15px 0;
    color: #fff;
}

.blog-hero p {
    color: var(--text-sub);
    font-size: 1.2rem;
}

.blog-feed {
    max-width: 850px;
    margin: 0 auto;
    padding: 60px 20px;
    display: flex;
    flex-direction: column;
    gap: 30px;
}

.blog-post-card {
    background-color: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 30px;
    transition: border-color 0.3s ease;
}

.blog-post-card:hover {
    border-color: var(--aqua-glow);
}

.blog-meta {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 10px;
}

.blog-date {
    font-size: 0.85rem;
    color: var(--text-sub);
    font-weight: bold;
}

.blog-post-card h2 {
    font-size: 1.8rem;
    color: #ffffff;
    margin: 10px 0 15px 0;
    text-align: left;
    font-family: 'Rajdhani', sans-serif;
}

.blog-preview {
    color: var(--text-main);
    font-size: 1.1rem;
    line-height: 1.6;
}

/* Inline Expansion Styles */
.expandable-content {
    margin-top: 15px;
}

.expandable-content summary {
    list-style: none;
    cursor: pointer;
}

.expandable-content summary::-webkit-details-marker {
    display: none;
}

.read-more-btn {
    display: inline-block;
    color: var(--aqua-glow);
    font-weight: bold;
    font-size: 1rem;
    padding: 6px 14px;
    background: rgba(0, 245, 212, 0.08);
    border: 1px solid var(--aqua-glow);
    border-radius: 4px;
    transition: all 0.2s ease;
    user-select: none;
}

.read-more-btn:hover {
    background: var(--aqua-glow);
    color: #000;
}

.less-text {
    display: none;
}

.expandable-content[open] .more-text {
    display: none;
}

.expandable-content[open] .less-text {
    display: inline;
}

.expanded-text {
    margin-top: 20px;
    padding-top: 20px;
    border-top: 1px dashed var(--border-color);
    color: var(--text-sub);
    line-height: 1.7;
}

.expanded-text p {
    margin-bottom: 12px;
}

.expanded-text ul {
    margin: 10px 0 15px 25px;
    color: var(--text-main);
}

/* ==========================================================================
   7. ABOUT, COMMUNITY & FOOTER
   ========================================================================== */
.about-container {
    max-width: 800px;
    margin: 0 auto;
    text-align: center;
}

.server-box {
    text-align: center;
    background: var(--bg-card);
    padding: 40px;
    border: 2px dashed var(--aqua-glow);
    border-radius: 8px;
    max-width: 600px;
    margin: 0 auto;
}

footer {
    padding: 40px;
    text-align: center;
    background-color: var(--bg-dark);
    border-top: 1px solid var(--border-color);
}

.social-links {
    margin-bottom: 20px;
}

.social-links a {
    color: var(--text-sub);
    text-decoration: none;
    margin: 0 15px;
    font-weight: bold;
    transition: color 0.3s;
}

.social-links a:hover {
    color: var(--aqua-glow);
}

.copyright {
    color: #4a5568;
    font-size: 0.9rem;
}