@import url('https://fonts.googleapis.com/css2?family=Poppins:wght@300;400;600;800&display=swap');

:root {
    --bg-gradient: linear-gradient(135deg, #0f2027 0%, #203a43 50%, #2c5364 100%);
    --glass-bg: rgba(255, 255, 255, 0.05);
    --glass-border: rgba(255, 255, 255, 0.15);
    --glass-shadow: 0 8px 32px 0 rgba(0, 0, 0, 0.4);
    --primary-color: #00f2fe;
    --primary-gradient: linear-gradient(135deg, #4facfe 0%, #00f2fe 100%);
    --danger-gradient: linear-gradient(135deg, #ff0844 0%, #ffb199 100%);
    --text-main: #ffffff;
    --text-muted: #b0bec5;
}

body {
    font-family: 'Poppins', sans-serif;
    background: var(--bg-gradient);
    background-attachment: fixed;
    color: var(--text-main);
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 100vh;
    margin: 0;
    overflow-x: hidden;
}

/* Glassmorphism Fundamentals */
.glass-container, .glass-panel {
    background: var(--glass-bg);
    backdrop-filter: blur(16px) saturate(120%);
    -webkit-backdrop-filter: blur(16px) saturate(120%);
    border: 1px solid var(--glass-border);
    box-shadow: var(--glass-shadow);
    border-radius: 20px;
}

.glass-container {
    padding: 40px;
    width: 100%;
    max-width: 420px;
    text-align: center;
    position: relative;
    z-index: 10;
}

/* 3D Typography */
.title-3d {
    font-weight: 800;
    font-size: 28px;
    margin-top: 0;
    margin-bottom: 25px;
    background: var(--primary-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    text-shadow: 0px 4px 10px rgba(0, 242, 254, 0.3);
    letter-spacing: 1px;
}

.panel-title {
    color: var(--primary-color);
    font-weight: 600;
    margin-top: 0;
    border-bottom: 1px solid var(--glass-border);
    padding-bottom: 10px;
}

/* Inputs */
.glass-input {
    width: 100%;
    padding: 15px;
    margin: 10px 0 20px 0;
    border-radius: 12px;
    border: 1px solid rgba(255, 255, 255, 0.2);
    background: rgba(0, 0, 0, 0.2);
    color: white;
    font-size: 16px;
    box-sizing: border-box;
    transition: all 0.3s ease;
    box-shadow: inset 0 2px 4px rgba(0,0,0,0.5);
    font-family: 'Poppins', sans-serif;
    letter-spacing: 1px;
}

.glass-input:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: inset 0 2px 4px rgba(0,0,0,0.5), 0 0 15px rgba(0, 242, 254, 0.4);
    background: rgba(0, 0, 0, 0.4);
}

.glass-input::placeholder { color: rgba(255,255,255,0.4); }

/* 3D Buttons */
.btn-3d {
    width: 100%;
    padding: 15px;
    background: var(--primary-gradient);
    color: #000;
    font-weight: 800;
    border: none;
    border-radius: 12px;
    font-size: 16px;
    cursor: pointer;
    transition: all 0.2s ease;
    box-shadow: 0 6px 15px rgba(0, 242, 254, 0.3), inset 0 2px 2px rgba(255,255,255,0.5), inset 0 -2px 2px rgba(0,0,0,0.2);
    text-transform: uppercase;
    letter-spacing: 2px;
}

.btn-3d:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 20px rgba(0, 242, 254, 0.5), inset 0 2px 2px rgba(255,255,255,0.6), inset 0 -2px 2px rgba(0,0,0,0.2);
}

.btn-3d:active {
    transform: translateY(2px);
    box-shadow: 0 2px 5px rgba(0, 242, 254, 0.3), inset 0 2px 5px rgba(0,0,0,0.4);
}

.btn-danger { background: var(--danger-gradient); color: white; box-shadow: 0 6px 15px rgba(255, 8, 68, 0.3), inset 0 2px 2px rgba(255,255,255,0.3), inset 0 -2px 2px rgba(0,0,0,0.2); }
.btn-danger:hover { box-shadow: 0 8px 20px rgba(255, 8, 68, 0.5), inset 0 2px 2px rgba(255,255,255,0.4), inset 0 -2px 2px rgba(0,0,0,0.2); }
.btn-close { margin-top: 20px; background: rgba(255,255,255,0.1); color: white; border: 1px solid rgba(255,255,255,0.2); box-shadow: none; }

/* Links */
.link-text {
    color: var(--text-muted);
    cursor: pointer;
    font-size: 13px;
    margin-top: 20px;
    transition: color 0.3s;
}
.link-text:hover { color: var(--primary-color); text-shadow: 0 0 8px rgba(0, 242, 254, 0.5); }
.glow-link { color: var(--primary-color); text-decoration: none; font-weight: bold; }
.glow-link:hover { text-shadow: 0 0 10px var(--primary-color); }

/* Modal */
.modal {
    position: fixed; top: 0; left: 0; width: 100%; height: 100%;
    background: rgba(0, 0, 0, 0.7);
    backdrop-filter: blur(8px);
    display: flex; justify-content: center; align-items: center;
    z-index: 1000;
}
.hidden { display: none !important; }

.secret-text {
    background: rgba(0,0,0,0.3);
    padding: 15px;
    border-radius: 8px;
    letter-spacing: 3px;
    border: 1px dashed var(--primary-color);
    color: var(--primary-color);
    text-shadow: 0 0 10px rgba(0,242,254,0.3);
}

/* Dashboard */
.dashboard-container { width: 95%; max-width: 1200px; height: 85vh; display: flex; flex-direction: column; gap: 20px; }
.header { display: flex; justify-content: space-between; align-items: center; padding: 20px 30px; }
.header .title-3d { margin: 0; }
.header .btn-3d { width: auto; padding: 10px 30px; }

.main-content { display: flex; gap: 20px; height: 100%; overflow: hidden; }
.users-panel { width: 280px; padding: 25px; display: flex; flex-direction: column; }
.chat-panel { flex-grow: 1; padding: 25px; display: flex; flex-direction: column; }

#online-users-list { list-style: none; padding: 0; margin: 0; overflow-y: auto; }
#online-users-list li {
    padding: 12px 15px;
    margin-bottom: 8px;
    background: rgba(255,255,255,0.05);
    border-radius: 8px;
    display: flex;
    align-items: center;
    font-weight: 600;
    transition: background 0.2s;
}
#online-users-list li:hover { background: rgba(255,255,255,0.1); }
#online-users-list li::before {
    content: ''; display: inline-block; width: 12px; height: 12px;
    background: #00f2fe; border-radius: 50%; margin-right: 12px;
    box-shadow: 0 0 10px #00f2fe;
}

#chat-box { flex-grow: 1; overflow-y: auto; margin-bottom: 20px; display: flex; flex-direction: column; gap: 15px; padding-right: 10px; }
.chat-message {
    background: rgba(255,255,255,0.1);
    padding: 12px 18px;
    border-radius: 15px 15px 15px 2px;
    width: fit-content; max-width: 75%;
    border: 1px solid rgba(255,255,255,0.05);
    box-shadow: 0 4px 10px rgba(0,0,0,0.1);
}
.chat-message.self {
    background: var(--primary-gradient);
    color: #000;
    align-self: flex-end;
    border-radius: 15px 15px 2px 15px;
    border: none;
}
.chat-sender { font-size: 11px; font-weight: bold; margin-bottom: 5px; opacity: 0.7; }
.chat-message.self .chat-sender { color: #000; opacity: 0.6; }

.chat-input-area { display: flex; gap: 15px; }
.chat-input-area .glass-input { margin: 0; }
.chat-input-area button { width: 120px; margin: 0; }

/* Scrollbars */
::-webkit-scrollbar { width: 8px; }
::-webkit-scrollbar-track { background: rgba(0,0,0,0.1); rounded: 10px; }
::-webkit-scrollbar-thumb { background: rgba(255,255,255,0.2); border-radius: 10px; }
::-webkit-scrollbar-thumb:hover { background: rgba(255,255,255,0.4); }

/* Toasts */
#toast-container { position: fixed; top: 20px; right: 20px; z-index: 2000; }
.toast {
    background: rgba(20, 20, 20, 0.85);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255,255,255,0.1);
    border-left: 4px solid var(--primary-color);
    color: white; padding: 15px 25px; border-radius: 8px; margin-bottom: 10px;
    box-shadow: 0 10px 30px rgba(0,0,0,0.5);
    animation: slideIn 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
    font-weight: 600;
}
@keyframes slideIn { from { transform: translateX(120%); opacity: 0; } to { transform: translateX(0); opacity: 1; } }