:root {
    --bg-primary: #0d1117;
    --bg-secondary: #161b22;
    --bg-card: #21262d;
    --text-primary: #c9d1d9;
    --text-secondary: #8b949e;
    --accent: #58a6ff;
    --accent-hover: #79c0ff;
    --danger: #f85149;
    --success: #56d364;
    --border: #30363d;
    --shadow: rgba(0, 0, 0, 0.3);
}

html.i18n-loading > body {
    visibility: hidden !important;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
}

body {
    background-color: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.6;
    overflow-x: hidden;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* Header */
header {
    background: linear-gradient(135deg, var(--bg-secondary) 0%, var(--bg-card) 100%);
    padding: 20px 0;
    border-bottom: 1px solid var(--border);
    position: sticky;
    top: 0;
    z-index: 1000;
}

.header-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

/* Logo */
.logo {
    display: flex;
    align-items: center;
    gap: 15px;
}
.logo i { font-size: 2rem; color: var(--accent); }
.logo h1 { font-size: 1.8rem; font-weight: 700; background: linear-gradient(90deg, var(--accent), var(--accent-hover)); -webkit-background-clip: text; -webkit-text-fill-color: transparent; cursor:pointer; }
.tagline { font-size:0.9rem; color: var(--text-secondary); margin-top: 2px; }

/* Navigation */
.nav-container { display:flex; align-items:center; gap:20px; }
nav ul { display:flex; list-style:none; gap:30px; }
nav a { color: var(--text-primary); text-decoration:none; font-weight:500; transition:color 0.3s; position:relative; }
nav a:hover { color: var(--accent); }
nav a::after { content:""; position:absolute; bottom:-5px; left:0; width:0; height:2px; background-color:var(--accent); transition:width 0.3s; }
nav a:hover::after { width:100%; }

/* Language switcher */
.language-switcher { display:flex; gap:5px; }
.lang-btn { background:transparent; border:1px solid var(--border); color:var(--text-secondary); padding:5px 10px; border-radius:4px; cursor:pointer; font-weight:600; transition:all 0.3s; }
.lang-btn:hover { background-color: rgba(88,166,255,0.1); color:var(--accent); }
.lang-btn.active { background-color:var(--accent); color:var(--bg-primary); border-color:var(--accent); }

/* Footer */
footer { background-color: var(--bg-secondary); padding:40px 0; text-align:center; border-top:1px solid var(--border); color:var(--text-secondary); }
.footer-content { display:flex; justify-content:space-between; align-items:center; flex-wrap:wrap; gap:20px; }
.footer-links { display:flex; gap:30px; }
.footer-links a { color:var(--text-secondary); text-decoration:none; transition:color 0.3s; }
.footer-links a:hover { color:var(--accent); }

/* Responsive */
@media(max-width:768px){
    .header-content,.nav-container{flex-direction:column; gap:15px;}
    nav ul{flex-wrap:wrap; justify-content:center; gap:15px;}
    .footer-content{flex-direction:column;text-align:center;}
}