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

body {
    background-color: #0f172a;
    color: #f8fafc;
}

/* Auth Screens */
.auth-body {
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 100vh;
}

.auth-container {
    background: #1e293b;
    padding: 30px;
    border-radius: 12px;
    width: 100%;
    max-width: 420px;
    box-shadow: 0 10px 25px rgba(0,0,0,0.5);
}

.auth-header h1 {
    font-size: 2rem;
    margin-bottom: 5px;
    color: #38bdf8;
}

.auth-tabs {
    display: flex;
    margin: 20px 0;
    border-bottom: 2px solid #334155;
}

.tab-btn {
    flex: 1;
    background: none;
    border: none;
    color: #94a3b8;
    padding: 10px;
    cursor: pointer;
    font-size: 0.95rem;
}

.tab-btn.active {
    color: #38bdf8;
    border-bottom: 2px solid #38bdf8;
    font-weight: bold;
}

.auth-form {
    display: none;
}

.auth-form.active {
    display: block;
}

.form-group {
    margin-bottom: 15px;
}

.form-group label {
    display: block;
    margin-bottom: 5px;
    color: #cbd5e1;
    font-size: 0.85rem;
}

.form-group input, .form-group select, .form-group textarea {
    width: 100%;
    padding: 10px;
    border-radius: 6px;
    border: 1px solid #334155;
    background: #0f172a;
    color: #fff;
}

.btn {
    padding: 10px 15px;
    border-radius: 6px;
    border: none;
    cursor: pointer;
    font-weight: bold;
    text-decoration: none;
    display: inline-block;
}

.btn-primary { background: #0284c7; color: white; }
.btn-success { background: #16a34a; color: white; }
.btn-warning { background: #d97706; color: white; }
.btn-danger { background: #dc2626; color: white; }
.btn-outline { border: 1px solid #475569; color: #cbd5e1; background: transparent; }
.btn-block { width: 100%; }

.alert {
    padding: 10px;
    border-radius: 6px;
    margin-bottom: 15px;
    font-size: 0.9rem;
}
.alert-danger { background: #7f1d1d; color: #fca5a5; }
.alert-success { background: #14532d; color: #86efac; }

/* Chat Layout */
.chat-body {
    height: 100vh;
    overflow: hidden;
}

.chat-wrapper {
    display: flex;
    height: 100vh;
}

.chat-sidebar {
    width: 260px;
    background: #1e293b;
    padding: 20px;
    display: flex;
    flex-direction: column;
}

.brand {
    font-size: 1.5rem;
    font-weight: bold;
    color: #38bdf8;
    margin-bottom: 20px;
}

.user-card {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 10px;
    background: #0f172a;
    border-radius: 8px;
    margin-bottom: 15px;
}

.avatar-img {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    object-fit: cover;
}

.badge {
    font-size: 0.7rem;
    padding: 2px 6px;
    border-radius: 4px;
    font-weight: bold;
    text-transform: uppercase;
}
.badge-admin { background: #ef4444; color: white; }
.badge-mod { background: #f59e0b; color: white; }
.badge-vip { background: #a855f7; color: white; }
.badge-user { background: #3b82f6; color: white; }
.badge-guest { background: #64748b; color: white; }

.status-selector {
    margin-bottom: 20px;
}

.rooms-nav {
    flex: 1;
    overflow-y: auto;
}

.rooms-nav h4 {
    font-size: 0.8rem;
    color: #64748b;
    text-transform: uppercase;
    margin-bottom: 10px;
}

.room-item {
    list-style: none;
    padding: 10px;
    border-radius: 6px;
    cursor: pointer;
    color: #cbd5e1;
    margin-bottom: 5px;
}

.room-item.active, .room-item:hover {
    background: #334155;
    color: white;
}

.chat-main {
    flex: 1;
    display: flex;
    flex-direction: column;
    background: #0f172a;
}

.chat-header {
    padding: 15px 20px;
    background: #1e293b;
    border-bottom: 1px solid #334155;
}

.messages-container {
    flex: 1;
    padding: 20px;
    overflow-y: auto;
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.message-item {
    display: flex;
    gap: 12px;
}

.msg-avatar {
    width: 36px;
    height: 36px;
    border-radius: 50%;
}

.msg-content {
    background: #1e293b;
    padding: 10px 14px;
    border-radius: 8px;
    max-width: 70%;
}

.msg-header {
    font-size: 0.8rem;
    color: #94a3b8;
    margin-bottom: 4px;
}

.chat-input-area {
    padding: 15px;
    background: #1e293b;
    display: flex;
    gap: 10px;
    position: relative;
}

.chat-input-area input {
    flex: 1;
    padding: 12px;
    border-radius: 6px;
    border: 1px solid #334155;
    background: #0f172a;
    color: white;
}

.btn-emoji {
    background: none;
    border: none;
    font-size: 1.4rem;
    cursor: pointer;
}

.emoji-dropdown {
    position: absolute;
    bottom: 60px;
    left: 15px;
    background: #1e293b;
    border: 1px solid #334155;
    padding: 10px;
    border-radius: 8px;
    display: flex;
    gap: 8px;
}

.emoji-dropdown span {
    cursor: pointer;
    font-size: 1.2rem;
}

.hidden { display: none !important; }

.online-users-sidebar {
    width: 220px;
    background: #1e293b;
    padding: 20px;
    border-left: 1px solid #334155;
}

.modal {
    position: fixed;
    top:0; left:0; width:100%; height:100%;
    background: rgba(0,0,0,0.7);
    display: none;
    justify-content: center;
    align-items: center;
    z-index: 100;
}

.modal-content {
    background: #1e293b;
    padding: 25px;
    border-radius: 10px;
    max-width: 400px;
    width: 90%;
}

.admin-body { padding: 40px; }
.admin-container { max-width: 1000px; margin: 0 auto; }
.admin-card { background: #1e293b; padding: 20px; border-radius: 8px; }
.admin-table { width: 100%; border-collapse: collapse; margin-top: 20px; }
.admin-table th, .admin-table td { padding: 12px; border: 1px solid #334155; text-align: left; }