:root {
    --bg-dark-deep: #121013;
    --bg-dark: #1C1A1F;
    --bg-medium: #28252A;
    --primary-accent: #E5007A;
    --secondary-accent: #00E5FF;
    --text-primary: #F0F0F0;
    --text-secondary: #A0A0A0;
    --font-family: 'Lexend', sans-serif;
    --danger: #ff4757;
}

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

body {
    font-family: var(--font-family);
    background-color: var(--bg-dark-deep);
    color: var(--text-primary);
    overflow: hidden;
    background-image: radial-gradient(circle at 1% 1%, rgba(229, 0, 122, 0.2) 0%, transparent 40%),
                      radial-gradient(circle at 99% 99%, rgba(0, 229, 255, 0.2) 0%, transparent 40%);
    height: 100vh;
}

/* --- View Management --- */
.view { display: none; }
.view.active { display: block; }

/* --- VIEW 1: LANDING PAGE --- */
#view-landing {
    display: flex;
    justify-content: center;
    align-items: center;
    height: 100vh;
}
.landing-container {
    text-align: center;
    padding: 40px;
    background: var(--bg-dark);
    border-radius: 15px;
    border: 1px solid var(--bg-medium);
    max-width: 500px;
    box-shadow: 0 10px 30px rgba(0,0,0,0.5);
}
.landing-container h1 {
    font-size: 2rem;
    color: var(--primary-accent);
    margin-bottom: 15px;
}
.landing-container p {
    color: var(--text-secondary);
    margin-bottom: 30px;
}
.nickname-form { display: flex; margin-bottom: 20px; }
#nickname-input {
    flex-grow: 1;
    padding: 15px;
    border: 1px solid var(--bg-medium);
    background: var(--bg-dark-deep);
    color: var(--text-primary);
    border-radius: 8px 0 0 8px;
    font-size: 1rem;
}
#nickname-input:focus { outline: 2px solid var(--primary-accent); }
#enter-lobby-btn {
    padding: 15px 25px;
    border: none;
    background: var(--primary-accent);
    color: white;
    font-weight: bold;
    font-size: 1rem;
    cursor: pointer;
    border-radius: 0 8px 8px 0;
    transition: background 0.3s;
}
#enter-lobby-btn:hover { background: #c20067; }
.rules { font-size: 0.8rem; color: #666; }

/* --- VIEW 2: LOBBY --- */
.main-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 20px 40px;
    background: var(--bg-dark);
    border-bottom: 1px solid var(--bg-medium);
}
.logo { font-size: 1.5rem; font-weight: bold; }
.logo span { color: var(--primary-accent); }
.user-info { display: flex; align-items: center; gap: 20px; }
.premium-btn {
    padding: 10px 20px;
    border: none;
    background: var(--primary-accent);
    color: white;
    font-weight: bold;
    border-radius: 8px;
    cursor: pointer;
    transition: all 0.3s;
}
.premium-btn:hover { background: #c20067; transform: scale(1.05); }

.lobby-container { padding: 40px; }
.lobby-container h2 { text-align: center; margin-bottom: 40px; font-size: 2rem; }
.room-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 30px;
}
.room-card {
    background: var(--bg-dark);
    border: 1px solid var(--bg-medium);
    border-radius: 10px;
    padding: 25px;
    cursor: pointer;
    transition: all 0.3s ease;
}
.room-card:hover {
    transform: translateY(-5px);
    border-color: var(--primary-accent);
    box-shadow: 0 5px 20px rgba(229, 0, 122, 0.2);
}
.room-card h3 { font-size: 1.3rem; margin-bottom: 10px; }
.room-card .icon { font-size: 1.5rem; margin-right: 15px; }
.room-card .name { display: flex; align-items: center; }
.room-card p { font-size: 0.9rem; color: var(--text-secondary); margin-bottom: 20px; }
.room-card .details { display: flex; justify-content: space-between; color: var(--secondary-accent); font-weight: bold; }

/* --- VIEW 3: CHAT ROOM --- */
.chat-layout {
    display: grid;
    grid-template-columns: 280px 1fr 280px;
    height: 100vh;
}
.chat-sidebar {
    background: var(--bg-dark);
    padding: 20px;
    display: flex;
    flex-direction: column;
}
.chat-sidebar.left { border-right: 1px solid var(--bg-medium); }
.chat-sidebar.right { border-left: 1px solid var(--bg-medium); }

#room-info {
    padding-bottom: 20px;
    border-bottom: 1px solid var(--bg-medium);
    margin-bottom: 20px;
}
#room-info h3 { margin-bottom: 5px; }
#room-info p { font-size: 0.9rem; color: var(--text-secondary); margin-bottom: 15px; }
#leave-room-btn {
    width: 100%;
    padding: 10px;
    border: 1px solid var(--danger);
    background: transparent;
    color: var(--danger);
    border-radius: 5px;
    cursor: pointer;
    transition: all 0.3s;
}
#leave-room-btn:hover { background: var(--danger); color: white; }

#user-list {
    flex-grow: 1;
    overflow-y: auto;
}
.user-entry {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 10px;
    border-radius: 5px;
}
.user-entry:hover { background: var(--bg-medium); }
.user-entry .name { display: flex; align-items: center; gap: 8px; }
.premium-badge, .status-icon { font-size: 0.8rem; }
.premium-badge { color: var(--secondary-accent); }
.pm-btn {
    background: none; border: none; color: var(--text-secondary);
    cursor: pointer; font-size: 1.2rem;
}
.pm-btn:hover { color: var(--secondary-accent); }

.chat-main {
    display: flex;
    flex-direction: column;
    padding: 0 10px;
}
#chat-messages {
    flex-grow: 1;
    padding: 20px;
    overflow-y: auto;
    display: flex;
    flex-direction: column;
    gap: 15px;
}
.message {
    max-width: 80%;
    padding: 10px 15px;
    border-radius: 15px;
    line-height: 1.4;
}
.message .username { font-weight: bold; font-size: 0.9rem; display: block; margin-bottom: 3px; }
.message.other { background: var(--bg-medium); border-bottom-left-radius: 3px; align-self: flex-start; }
.message.self { background: var(--primary-accent); border-bottom-right-radius: 3px; align-self: flex-end; }
.message.system { background: none; color: var(--secondary-accent); font-style: italic; align-self: center; text-align: center; font-size: 0.9rem; }

.chat-input-area { padding: 20px; }
#chat-input {
    width: 100%;
    padding: 15px;
    border: none;
    background: var(--bg-medium);
    color: var(--text-primary);
    border-radius: 10px;
    font-size: 1rem;
}
#chat-input:focus { outline: 2px solid var(--primary-accent); }

.premium-panel h4 { text-align: center; color: var(--secondary-accent); margin-bottom: 20px; }
#premium-ad { text-align: center; padding: 20px; background: var(--bg-medium); border-radius: 10px; }
.control-group { display: flex; justify-content: space-between; align-items: center; margin-bottom: 20px; }
.control-group label { flex-grow: 1; margin-right: 15px; }

.switch { position: relative; display: inline-block; width: 60px; height: 34px; }
.switch input { opacity: 0; width: 0; height: 0; }
.slider { position: absolute; cursor: pointer; top: 0; left: 0; right: 0; bottom: 0; background-color: #ccc; transition: .4s; }
.slider:before { position: absolute; content: ""; height: 26px; width: 26px; left: 4px; bottom: 4px; background-color: white; transition: .4s; }
input:checked + .slider { background-color: var(--primary-accent); }
input:checked + .slider:before { transform: translateX(26px); }
.slider.round { border-radius: 34px; }
.slider.round:before { border-radius: 50%; }