:root {
    --bg-dark: #0b0f15;
    --sidebar-bg: #141923;
    --card-bg: #1a2235;
    --text-main: #ffffff;
    --text-muted: #8b9bb4;
    --accent-green: #34c759;
    --accent-red: #ef4444;
    --border-color: rgba(255, 255, 255, 0.08);
}

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

body {
    font-family: 'Inter', sans-serif;
    background-color: var(--bg-dark);
    color: var(--text-main);
    display: flex;
    min-height: 100vh;
}

/* Preloader */
.preloader {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: var(--bg-dark);
    z-index: 999999;
    display: flex;
    justify-content: center;
    align-items: center;
    transition: opacity 0.5s ease, visibility 0.5s ease;
}

.preloader.fade-out {
    opacity: 0;
    visibility: hidden;
}

.preloader-content {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 1.5rem;
}

.preloader-logo {
    width: 120px;
    height: 120px;
    object-fit: contain;
    animation: pulseLogo 2s infinite ease-in-out;
}

@keyframes pulseLogo {
    0% { transform: scale(0.95); opacity: 0.8; }
    50% { transform: scale(1.05); opacity: 1; filter: drop-shadow(0 0 15px var(--accent-green)); }
    100% { transform: scale(0.95); opacity: 0.8; }
}

.preloader-bar {
    width: 200px;
    height: 4px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 4px;
    overflow: hidden;
    position: relative;
}

.preloader-progress {
    position: absolute;
    top: 0;
    left: 0;
    height: 100%;
    width: 50%;
    background: linear-gradient(90deg, var(--accent-green), var(--accent-red));
    border-radius: 4px;
    animation: loadingBar 1.5s infinite ease-in-out;
}

@keyframes loadingBar {
    0% { left: -50%; }
    100% { left: 100%; }
}

.preloader-text {
    color: var(--text-muted);
    font-size: 0.9rem;
    font-weight: 600;
    letter-spacing: 2px;
    text-transform: uppercase;
    animation: blinkText 1.5s infinite;
}

@keyframes blinkText {
    0%, 100% { opacity: 0.5; }
    50% { opacity: 1; }
}

.admin-layout {
    display: flex;
    width: 100%;
}

/* Sidebar */
.sidebar {
    width: 250px;
    background-color: var(--sidebar-bg);
    border-right: 1px solid var(--border-color);
    padding: 2rem 0;
    display: flex;
    flex-direction: column;
}

.logo {
    padding: 0 2rem;
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: 2rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.logo-icon { color: var(--accent-green); }

.site-logo {
    width: 32px;
    height: 32px;
    object-fit: contain;
}

.nav-links { list-style: none; }

.nav-links li {
    padding: 1rem 2rem;
    color: var(--text-muted);
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: 1rem;
    transition: all 0.3s;
}

.nav-links li:hover, .nav-links li.active {
    background: rgba(255,255,255,0.05);
    color: var(--text-main);
    border-left: 4px solid var(--accent-green);
}

/* Main Content */
.main-content {
    flex: 1;
    display: flex;
    flex-direction: column;
}

.top-bar {
    height: 70px;
    background: var(--sidebar-bg);
    border-bottom: 1px solid var(--border-color);
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0 2rem;
}

.admin-profile {
    display: flex;
    align-items: center;
    gap: 1.5rem;
}

.btn-logout {
    background: rgba(239, 68, 68, 0.1);
    color: var(--accent-red);
    border: 1px solid rgba(239, 68, 68, 0.2);
    padding: 0.5rem 1rem;
    border-radius: 6px;
    cursor: pointer;
    font-weight: 600;
}

.content-area {
    padding: 2rem;
    flex: 1;
}

.view-section {
    display: none;
    animation: fadeIn 0.3s ease;
}

.view-section.active {
    display: block;
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(10px); }
    to { opacity: 1; transform: translateY(0); }
}

.section-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1.5rem;
}

.btn-primary {
    background: rgba(52, 199, 89, 0.2);
    color: var(--accent-green);
    border: 1px solid rgba(52, 199, 89, 0.4);
    padding: 0.6rem 1.2rem;
    border-radius: 6px;
    cursor: pointer;
    font-weight: 600;
}

/* Forms */
.form-container {
    background: var(--card-bg);
    padding: 1.5rem;
    border-radius: 12px;
    border: 1px solid var(--border-color);
    margin-bottom: 2rem;
}

.form-group {
    margin-bottom: 1rem;
}

.form-group label {
    display: block;
    margin-bottom: 0.5rem;
    color: var(--text-muted);
    font-size: 0.9rem;
}

.form-group input, .form-group select {
    width: 100%;
    background: rgba(0,0,0,0.2);
    border: 1px solid var(--border-color);
    color: white;
    padding: 0.8rem;
    border-radius: 6px;
}

.btn-success {
    background: var(--accent-green);
    color: white;
    border: none;
    padding: 0.8rem 1.5rem;
    border-radius: 6px;
    cursor: pointer;
    font-weight: 600;
}

.btn-cancel {
    background: transparent;
    color: var(--text-muted);
    border: none;
    padding: 0.8rem 1.5rem;
    cursor: pointer;
}

/* Tables */
.table-container {
    background: var(--card-bg);
    border-radius: 12px;
    border: 1px solid var(--border-color);
    overflow: hidden;
}

table {
    width: 100%;
    border-collapse: collapse;
}

th, td {
    padding: 1rem;
    text-align: left;
    border-bottom: 1px solid var(--border-color);
}

th {
    background: rgba(0,0,0,0.2);
    color: var(--text-muted);
    font-weight: 600;
}

.btn-delete {
    background: rgba(239, 68, 68, 0.1);
    color: var(--accent-red);
    border: 1px solid rgba(239, 68, 68, 0.2);
    padding: 0.4rem 0.8rem;
    border-radius: 4px;
    cursor: pointer;
}

/* Toast */
.toast-container { position: fixed; bottom: 20px; right: 20px; z-index: 9999; display: flex; flex-direction: column; gap: 10px; }
.toast { background: var(--card-bg); border-left: 5px solid var(--accent-green); color: white; padding: 1rem 1.5rem; border-radius: 8px; box-shadow: 0 10px 30px rgba(0,0,0,0.3); display: flex; align-items: center; gap: 1rem; }
.toast-error { border-left-color: var(--accent-red); }
/* Status Badges */
.status-badge {
    padding: 4px 10px;
    border-radius: 20px;
    font-size: 0.75rem;
    font-weight: 700;
    text-transform: uppercase;
}

.status-open { background: rgba(52, 199, 89, 0.1); color: var(--accent-green); }
.status-answered { background: rgba(88, 101, 242, 0.1); color: #5865f2; }
.status-closed { background: rgba(255, 255, 255, 0.05); color: var(--text-muted); }

/* Chat Styles (Admin) */
.chat-messages {
    display: flex;
    flex-direction: column;
    gap: 1rem;
    padding: 1rem;
    background: rgba(0, 0, 0, 0.1);
    border-radius: 12px;
    border: 1px solid var(--border-color);
}

.btn-small {
    padding: 0.3rem 0.8rem;
    font-size: 0.8rem;
}