:root {
--bg-dark: #0f172a;
--panel-bg: #1e293b;
--primary: #38bdf8;
--primary-dark: #0284c7;
--text-main: #e2e8f0;
--danger: #f43f5e;
}
* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}
body {
    background-color: var(--bg-dark);
    color: var(--text-main);
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    min-height: 100vh;
    display: flex;
    justify-content: center;
}
.hidden {
    display: none !important;
}
.game-wrapper {
    width: 100vw;
    background: rgba(15, 23, 42, 0.95);
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}
.main-banner {
    height: 30vh;
    background: linear-gradient(180deg, #1e293b 0%, #0f172a 100%);
    border-bottom: 0.5vh solid var(--primary);
    position: relative;
    display: flex;
    justify-content: center;
    align-items: center;
    flex-direction: column;
}
.banner-logo {
    text-align: center;
}
.banner-logo h1 {
    font-size: 8vw;
    color: #fff;
    letter-spacing: 0.5vw;
}
.banner-logo h1 span {
    color: var(--primary);
}
.banner-logo h2 {
    font-size: 2vw;
    color: var(--primary-dark);
    letter-spacing: 0.3vw;
    margin-top: 1vh;
}
.banner-play-btn {
    position: absolute;
    bottom: -2vh;
    background: var(--primary);
    color: #000;
    font-size: 2vw;
    padding: 1.5vh 5vw;
    border: none;
    border-radius: 0.5vw;
    font-weight: bold;
    cursor: pointer;
    z-index: 10;
}
.top-nav {
    display: flex;
    justify-content: center;
    margin-top: 1.5vh;
    width: 100%;
}
.top-nav a {
    color: #fff;
    text-decoration: none;
    padding: 2vh 4vw;
    font-weight: bold;
    font-size: 1vw;
}
.top-nav a:hover, .top-nav a.active {
    background: var(--primary);
    color: #000;
}
.content-container {
    display: flex;
    flex-wrap: wrap;
    gap: 1vw;
    padding: 1vw;
}
.main-content {
    flex: 7 1 60%;
}
.sidebar {
    flex: 3 1 30%;
}
.panel {
    margin-bottom: 1vh;
    box-shadow: 0 0.5vh 2vh rgba(0,0,0,0.5);
}
.panel-header {
    background: var(--primary);
    color: #000;
    padding: 1.5vh 2vw;
    font-weight: 900;
    font-size: 2vw;
}
.panel-body {
    background: var(--panel-bg);
    padding: 1vw;
}
.feature-post {
    margin-bottom: 2vh;
    padding-bottom: 1vh;
    border-bottom: 0.1vh dashed var(--primary-dark);
}
.feature-title {
    color: var(--primary);
    font-size: 1vw;
    margin-bottom: 1vh;
}
.feature-date {
    color: #94a3b8;
    font-size: 1vw;
    margin-bottom: 1.5vh;
}
.feature-post p {
    font-size: 1vw;
    line-height: 1.6;
}
.auth-box label {
    display: block;
    color: var(--primary);
    margin-bottom: 0.5vh;
    font-size: 1vw;
}
.auth-box input {
    width: 100%;
    padding: 0.75vw;
    margin-bottom: 0.5vh;
    background: #0f172a;
    border: 0.1vh solid var(--primary-dark);
    color: #fff;
    outline: none;
}
.btn {
    width: 100%;
    padding: 0.75vw;
    font-weight: bold;
    cursor: pointer;
    border: none;
    margin-bottom: 1vh;
}
.btn-play {
    background: var(--primary);
    color: #000;
}
.btn-outline {
    background: transparent;
    color: var(--primary);
    border: 0.1vh solid var(--primary);
}
.online {
    color: #22c55e;
    font-weight: bold;
}
.player-count {
    color: var(--primary);
    
}
.user-profile h3 {
    color: var(--primary);
    margin-bottom: 1vh;
}
.alert {
    padding: 1.5vh;
    margin-bottom: 1vh;
    border-left: 0.5vh solid;
    font-size: 1vw;
}
.alert-error {
    background: rgba(244, 63, 94, 0.1);
    border-color: var(--danger);
    color: #fda4af;
}
footer {
    text-align: center;
    padding: 1vh;
    color: #475569;
    font-size: 1vw;
    border-top: 0.1vh solid var(--primary-dark);
}