/* ===== Reset & Base ===== */
*, *::before, *::after {
    box-sizing: border-box;
}

body {
    margin: 0;
    padding: 0;
    font-family: 'Inter', 'Segoe UI', system-ui, -apple-system, sans-serif;
    background: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.6;
}

a {
    text-decoration: none;
    color: inherit;
}

/* ===== Scrollbar ===== */
::-webkit-scrollbar {
    width: 6px;
    height: 6px;
}

::-webkit-scrollbar-track {
    background: var(--bg-primary);
}

::-webkit-scrollbar-thumb {
    background: var(--text-dim);
    border-radius: 3px;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--text-secondary);
}

/* ===== Login Page ===== */
.login-page {
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 100vh;
    width: 100%;
    background: var(--bg-primary);
}

/* ===== Admin Layout ===== */
.admin-layout {
    display: flex;
    min-height: 100vh;
}

/* ===== Sidebar ===== */
.sidebar {
    width: var(--sidebar-width);
    background: var(--bg-secondary);
    border-right: 1px solid var(--border);
    display: flex;
    flex-direction: column;
    position: fixed;
    top: 0;
    left: 0;
    bottom: 0;
    z-index: 50;
    overflow-y: auto;
}

.sidebar-header {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 1.25rem 1rem;
    height: var(--header-height);
    border-bottom: 1px solid var(--border);
    font-size: 1.15rem;
    font-weight: 700;
    color: var(--text-primary);
    flex-shrink: 0;
}

.sidebar-header img {
    width: 32px;
    height: 32px;
    border-radius: 8px;
}

.sidebar-nav {
    flex: 1;
    padding: 0.75rem 0.5rem;
    display: flex;
    flex-direction: column;
    gap: 2px;
}

.nav-item {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.75rem 1rem;
    border-radius: var(--radius-sm);
    color: var(--text-secondary);
    font-size: 0.9rem;
    font-weight: 500;
    cursor: pointer;
    transition: all var(--transition);
}

.nav-item:hover {
    color: var(--text-primary);
    background: var(--bg-card);
}

.nav-item.active {
    color: var(--purple);
    background: var(--purple-glow);
}

.nav-item svg,
.nav-item i {
    width: 20px;
    height: 20px;
    flex-shrink: 0;
}

.nav-divider {
    height: 1px;
    background: var(--border);
    margin: 0.5rem 1rem;
}

.sidebar-footer {
    padding: 1rem;
    border-top: 1px solid var(--border);
    display: flex;
    align-items: center;
    gap: 0.75rem;
    flex-shrink: 0;
    color: var(--text-secondary);
    font-size: 0.85rem;
}

.sidebar-footer img {
    width: 36px;
    height: 36px;
    border-radius: 50%;
}

/* ===== Main Content ===== */
.main-content {
    flex: 1;
    margin-left: var(--sidebar-width);
    padding: 2rem;
    min-height: 100vh;
}

/* ===== Page Header ===== */
.page-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1.5rem;
}

.page-header h1 {
    font-size: 1.5rem;
    font-weight: 700;
    margin: 0;
    color: var(--text-primary);
}

/* ===== Content Area ===== */
.content-area {
    width: 100%;
}

/* ===== Login Card ===== */
.login-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 3rem 2.5rem;
    text-align: center;
    max-width: 400px;
    width: 90%;
}

.login-logo {
    margin-bottom: 1.5rem;
}

.login-card h1 {
    margin: 0 0 0.5rem;
    font-size: 1.5rem;
    font-weight: 700;
}

.login-card p {
    color: var(--text-secondary);
    font-size: 0.9rem;
    margin: 0 0 2rem;
}

#telegram-login-widget {
    display: flex;
    justify-content: center;
}

/* ===== User Info (sidebar footer) ===== */
.user-info {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    flex: 1;
    min-width: 0;
}

.user-info span {
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.user-avatar {
    width: 32px;
    height: 32px;
    border-radius: 50%;
    object-fit: cover;
}

.user-avatar-placeholder {
    width: 32px;
    height: 32px;
    border-radius: 50%;
    background: var(--bg-card);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1rem;
}

/* ===== Table Responsive ===== */
.table-responsive {
    overflow-x: auto;
    border-radius: var(--radius);
    border: 1px solid var(--border);
}

.table-responsive .data-table {
    border: none;
    border-radius: 0;
}

/* ===== Mobile Header ===== */
.mobile-header {
    display: none;
    align-items: center;
    gap: 0.75rem;
    padding: 0.75rem 1rem;
    background: var(--bg-secondary);
    border-bottom: 1px solid var(--border);
    font-weight: 600;
    position: sticky;
    top: 0;
    z-index: 40;
}

.hamburger {
    background: transparent;
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    color: var(--text-primary);
    font-size: 1.25rem;
    width: 36px;
    height: 36px;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
}