/* ===== Global Styles & Dark Theme ===== */
:root {
    --primary: #00aaff; --primary-hover: #0088cc; --accent: #ff4d94;
    --bg-primary: #121212; --bg-secondary: #1e1e1e; --bg-tertiary: #252525;
    --text-primary: #e0e0e0; --text-secondary: #aaa; --border: #333;
    --card-shadow: 0 10px 25px rgba(0,0,0,0.2); --transition: all 0.3s ease;
}
* { box-sizing: border-box; }
body { font-family: 'Inter', sans-serif; margin: 0; background: var(--bg-primary); color: var(--text-primary); line-height: 1.6; display: flex; flex-direction: column; min-height: 100vh; }
a { color: var(--primary); text-decoration: none; transition: var(--transition); }
a:hover { color: var(--primary-hover); }
h1, h2, h3 { margin-top: 0; font-weight: 700; line-height: 1.3; }
.card { background: var(--bg-secondary); border: 1px solid var(--border); border-radius: 12px; padding: 25px; margin-bottom: 30px; box-shadow: var(--card-shadow); }
.container { max-width: 1200px; margin: 30px auto; padding: 0 20px; display: flex; flex-wrap: wrap; flex-grow: 1; gap: 30px; }
.main-content { flex: 3; }
.sidebar { flex: 1; min-width: 250px; }

/* ===== Header & Navigation ===== */
.header-outer-container { background: var(--bg-secondary); border-bottom: 1px solid var(--border); position: sticky; top: 0; z-index: 1000; }
.header-container { max-width: 1200px; margin: 0 auto; padding: 15px 20px; display: flex; align-items: center; justify-content: space-between; }
.site-branding { display: flex; align-items: center; gap: 15px; }
.site-logo { width: 50px; height: 50px; border-radius: 12px; background: linear-gradient(45deg, var(--primary), var(--accent)); display: flex; align-items: center; justify-content: center; color: white; font-size: 1.5rem; font-weight: bold; }
.site-title-wrapper h1 { margin: 0; font-size: 1.8em; background: linear-gradient(45deg, var(--primary), #00ddff); -webkit-background-clip: text; -webkit-text-fill-color: transparent; }
.site-title-wrapper p { margin: 5px 0 0; color: var(--text-secondary); font-size: 0.9em; }
.header-search-form { display: flex; max-width: 300px; }
.header-search-form input { flex: 1; padding: 12px 16px; border: 1px solid var(--border); border-radius: 8px 0 0 8px; background-color: var(--bg-tertiary); color: var(--text-primary); }
.header-search-form button { padding: 12px 16px; border: 1px solid var(--primary); border-left: none; border-radius: 0 8px 8px 0; background-color: var(--primary); color: #fff; cursor: pointer; }
.mobile-menu-toggle { display: none; background: none; border: none; color: var(--text-primary); font-size: 1.5rem; cursor: pointer; }
.main-nav { background-color: var(--bg-tertiary); width: 100%; border-top: 1px solid var(--border); }
.main-nav-content { display: flex; max-width: 1200px; margin: 0 auto; }
.main-nav ul { margin: 0; padding: 0; list-style: none; display: flex; }
.main-nav li a { display: block; color: var(--text-primary); padding: 18px 16px; font-weight: 500; }
.nav-search-form { display: none; }

/* GIF Grid */
.gif-grid-container h2 { border-bottom: 2px solid var(--border); padding-bottom: 15px; margin-bottom: 20px; font-size: 1.8em; display: flex; align-items: center; }
.gif-grid-container h2 i { margin-right: 10px; color: var(--primary); }
.giphy-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(220px, 1fr)); gap: 20px; }
.gif-item { position: relative; border-radius: 10px; overflow: hidden; height: 200px; background-color: var(--bg-tertiary); }
.gif-item img { width: 100%; height: 100%; object-fit: cover; display: block; }
.loading-spinner { width: 40px; height: 40px; border: 4px solid var(--bg-tertiary); border-left-color: var(--primary); border-radius: 50%; animation: spin 1s linear infinite; margin: 40px auto; }
@keyframes spin { to { transform: rotate(360deg); } }
.load-more-container { text-align: center; margin-top: 40px; }
#load-more-btn { background-color: var(--primary); color: #fff; border: none; padding: 14px 30px; font-size: 1em; font-weight: 600; border-radius: 8px; cursor: pointer; }

/* Sidebar */
.sidebar .widget { background: var(--bg-secondary); border: 1px solid var(--border); border-radius: 12px; padding: 25px; margin-bottom: 30px; }
.sidebar h2 { border-bottom: 2px solid var(--border); padding-bottom: 15px; font-size: 1.4em; }
.sidebar ul { list-style: none; padding: 0; }
.sidebar ul li a { display: block; background: var(--bg-tertiary); color: var(--text-primary); padding: 10px 15px; border-radius: 25px; font-size: 0.9em; margin-bottom: 8px; }

/* Footer */
.footer-container { background: var(--bg-secondary); color: var(--text-secondary); padding: 40px 20px; margin-top: auto; border-top: 1px solid var(--border); }
.footer-grid { max-width: 1200px; margin: 0 auto; display: grid; grid-template-columns: repeat(auto-fit, minmax(250px, 1fr)); gap: 30px; }
.footer-links a, .footer-legal a { color: var(--text-secondary); display: block; margin-bottom: 8px; }
.copyright { margin-top: 15px; font-size: 0.8em; }

/* Responsive */
@media (max-width: 992px) {
    .container { flex-direction: column; }
    .main-content { margin-right: 0; }
}
@media (max-width: 768px) {
    .header-search-form { display: none; }
    .mobile-menu-toggle { display: block; }
    .main-nav { position: absolute; top: 100%; left: 0; width: 100%; max-height: 0; overflow: hidden; background: #1e1e1e; transition: max-height 0.4s ease; border-top: 1px solid var(--border); }
    .main-nav.active { max-height: 500px; }
    .main-nav-content { flex-direction: column; }
    .main-nav ul { width: 100%; flex-direction: column; }
    .main-nav li a { padding: 14px 20px; border-bottom: 1px solid var(--border); }
    .nav-search-form { display: flex; margin: 15px 20px; width: auto; }
}

/* Single GIF Viewer Page */
.main-content-viewer { width: 100%; max-width: 800px; margin: 0 auto; }
.back-link { display: inline-block; margin-bottom: 20px; font-weight: 500; color: var(--text-secondary); }
.gif-loading-state { display: flex; flex-direction: column; align-items: center; justify-content: center; padding: 80px 20px; color: var(--text-secondary); }
.single-gif-card { background: var(--bg-secondary); border-radius: 12px; padding: 25px; box-shadow: 0 4px 15px rgba(0,0,0,0.5); width: 100%; }
.single-gif-card h1 { text-align: center; margin-bottom: 20px; font-size: 2em; }
.single-gif-card img { width: 100%; border-radius: 8px; display: block; }
.gif-meta-info { text-align: center; margin-top: 15px; padding-top: 15px; border-top: 1px solid var(--border); font-size: 0.9em; color: var(--text-secondary); }
.share-section { text-align: center; margin-top: 25px; padding-top: 20px; border-top: 1px solid var(--border); }
.share-section h3 { margin-bottom: 15px; }
.share-buttons a { display: inline-flex; align-items: center; justify-content: center; width: 45px; height: 45px; margin: 0 8px; border-radius: 50%; text-decoration: none; color: white; }
.related-gifs-section { margin-top: 30px; padding: 25px; background: var(--bg-secondary); border-radius: 12px; }
.related-gifs-section h3 { text-align: center; border-bottom: 1px solid var(--border); padding-bottom: 15px; margin-bottom: 20px; }