/**
 * BeeEarn - Component Styles (Part 1)
 * App Header, Navigation, Sidebar
 */

/* APP HEADER */
.app-header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    height: 60px;
    background: var(--bg-card);
    border-bottom: 1px solid var(--gray-200);
    z-index: var(--z-sticky);
}

.app-header-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 100%;
    padding: 0 var(--space-4);
    max-width: 1400px;
    margin: 0 auto;
}

.menu-toggle {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 44px;
    height: 44px;
    background: transparent;
    border: none;
    border-radius: var(--radius);
    color: var(--text-primary);
    cursor: pointer;
    transition: background var(--transition-fast);
}

.menu-toggle:hover { background: var(--gray-100); }

.app-logo {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    text-decoration: none;
}

.logo-icon {
    display: flex;
    align-items: center;
    justify-content: center;
}

.logo-icon .logo-image {
    max-height: 100%;
    width: auto;
    object-fit: contain;
}

.logo-text {
    font-size: var(--font-size-lg);
    font-weight: 700;
    color: var(--text-primary);
}

.header-actions {
    display: flex;
    align-items: center;
    gap: var(--space-2);
}

.notification-btn {
    position: relative;
    width: 44px;
    height: 44px;
    background: transparent;
    border: none;
    border-radius: var(--radius);
    color: var(--text-secondary);
    cursor: pointer;
    transition: all var(--transition-fast);
}

.notification-btn:hover {
    background: var(--gray-100);
    color: var(--text-primary);
}

.notification-badge {
    position: absolute;
    top: 8px;
    right: 8px;
    min-width: 18px;
    height: 18px;
    padding: 0 5px;
    background: var(--danger);
    color: var(--white);
    font-size: 10px;
    font-weight: 600;
    line-height: 18px;
    text-align: center;
    border-radius: var(--radius-full);
}

/* BOTTOM NAVIGATION */
.bottom-nav {
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    height: 70px;
    background: var(--bg-card);
    border-top: 1px solid var(--gray-200);
    display: flex;
    align-items: center;
    justify-content: space-around;
    padding: 0 var(--space-2);
    padding-bottom: env(safe-area-inset-bottom, 0);
    z-index: var(--z-sticky);
}

.nav-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: var(--space-1);
    min-width: 60px;
    padding: var(--space-2);
    text-decoration: none;
    color: var(--text-muted);
    font-size: var(--font-size-xs);
    font-weight: 500;
    transition: color var(--transition-fast);
}

.nav-item svg { width: 22px; height: 22px; }
.nav-item:hover, .nav-item.active { color: var(--primary); }

.nav-item-center {
    position: relative;
    margin-top: -30px;
}

.nav-center-icon {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 56px;
    height: 56px;
    background: var(--primary-gradient);
    border-radius: var(--radius-full);
    color: var(--secondary);
    box-shadow: var(--primary-shadow);
    transition: transform var(--transition-fast), box-shadow var(--transition-fast);
}

.nav-item-center:hover .nav-center-icon,
.nav-item-center.active .nav-center-icon {
    transform: scale(1.1);
    box-shadow: var(--primary-shadow-lg);
}

/* SIDEBAR */
.sidebar-overlay {
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.5);
    backdrop-filter: blur(4px);
    z-index: var(--z-modal-backdrop);
    opacity: 0;
    visibility: hidden;
    transition: all var(--transition);
}

.sidebar-overlay.active { opacity: 1; visibility: visible; }

.sidebar {
    position: fixed;
    top: 0;
    left: 0;
    bottom: 0;
    width: 280px;
    max-width: 85vw;
    background: var(--bg-card);
    z-index: var(--z-modal);
    transform: translateX(-100%);
    transition: transform var(--transition);
    display: flex;
    flex-direction: column;
    overflow: hidden;
}

.sidebar.active { transform: translateX(0); }

.sidebar-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--space-5);
    background: var(--primary-gradient);
    color: var(--secondary);
}

.user-info {
    display: flex;
    align-items: center;
    gap: var(--space-3);
}

.user-details { flex: 1; min-width: 0; }

.user-name {
    font-size: var(--font-size-base);
    font-weight: 600;
    color: var(--secondary);
    margin: 0;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.points-sm {
    font-size: var(--font-size-xs);
    padding: 2px 8px;
    margin-top: var(--space-1);
}

.sidebar-close {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 36px;
    height: 36px;
    background: rgba(26, 26, 46, 0.1);
    border: none;
    border-radius: var(--radius);
    color: var(--secondary);
    cursor: pointer;
}

.sidebar-nav {
    flex: 1;
    overflow-y: auto;
    padding: var(--space-4);
}

.sidebar-link {
    display: flex;
    align-items: center;
    gap: var(--space-3);
    padding: var(--space-3) var(--space-4);
    color: var(--text-secondary);
    text-decoration: none;
    font-size: var(--font-size-sm);
    font-weight: 500;
    border-radius: var(--radius);
    transition: all var(--transition-fast);
    margin-bottom: var(--space-1);
}

.sidebar-link svg { width: 20px; height: 20px; flex-shrink: 0; }
.sidebar-link:hover { background: var(--gray-100); color: var(--text-primary); }
.sidebar-link.active { background: var(--primary-bg-15); color: var(--primary-dark); }
.sidebar-link-admin { color: var(--info); }
.sidebar-link-danger { color: var(--danger); }

.sidebar-divider {
    height: 1px;
    background: var(--gray-200);
    margin: var(--space-3) 0;
}

.sidebar-footer {
    padding: var(--space-4);
    border-top: 1px solid var(--gray-200);
    text-align: center;
}

/* MAIN CONTENT */
.main-content {
    padding-top: 60px;
    padding-bottom: 90px;
    min-height: 100vh;
}

.page-header {
    padding: var(--space-5) var(--space-4);
    background: var(--bg-card);
    border-bottom: 1px solid var(--gray-200);
}

.page-title { font-size: var(--font-size-xl); font-weight: 600; margin: 0; }
.page-subtitle { font-size: var(--font-size-sm); color: var(--text-muted); margin: var(--space-1) 0 0; }
.page-content { padding: var(--space-4); }

/* ARTICLE CARDS */
.article-grid { display: grid; gap: var(--space-4); }

.article-card {
    display: flex;
    gap: var(--space-3);
    padding: var(--space-4);
    background: var(--bg-card);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
    text-decoration: none;
    transition: all var(--transition);
}

.article-card:hover { box-shadow: var(--shadow); transform: translateY(-2px); }

.article-image {
    flex-shrink: 0;
    width: 100px;
    height: 80px;
    border-radius: var(--radius);
    object-fit: cover;
    background: var(--gray-200);
}

.article-content { flex: 1; min-width: 0; }
.article-category { display: inline-block; font-size: var(--font-size-xs); font-weight: 500; color: var(--primary-dark); margin-bottom: var(--space-1); }

.article-title {
    font-size: var(--font-size-sm);
    font-weight: 600;
    color: var(--text-primary);
    margin: 0 0 var(--space-2);
    display: -webkit-box;
    -webkit-line-clamp: 2;
    line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.article-meta { display: flex; align-items: center; gap: var(--space-3); font-size: var(--font-size-xs); color: var(--text-muted); }
.article-meta-item { display: flex; align-items: center; gap: var(--space-1); }
.article-meta-item svg { width: 14px; height: 14px; }
.article-points { background: var(--primary-bg-15); color: var(--primary-dark); padding: 2px 8px; border-radius: var(--radius-full); font-weight: 600; }

/* STATS CARDS */
.stats-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: var(--space-3); }
.stat-card { padding: var(--space-4); background: var(--bg-card); border-radius: var(--radius-lg); box-shadow: var(--shadow-sm); }
.stat-card-primary { background: var(--primary-gradient); color: var(--secondary); }

.stat-icon {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    background: var(--primary-bg-15);
    border-radius: var(--radius);
    margin-bottom: var(--space-3);
}

.stat-card-primary .stat-icon { background: rgba(26, 26, 46, 0.15); }
.stat-icon svg { width: 20px; height: 20px; color: var(--primary); }
.stat-card-primary .stat-icon svg { color: var(--secondary); }
.stat-value { font-size: var(--font-size-2xl); font-weight: 700; line-height: 1.2; }
.stat-label { font-size: var(--font-size-xs); color: var(--text-muted); margin-top: var(--space-1); }
.stat-card-primary .stat-label { color: rgba(26, 26, 46, 0.7); }

/* REFERRAL CODE CARD */
.referral-code-card {
    padding: var(--space-5);
    background: var(--primary-gradient);
    border-radius: var(--radius-xl);
    color: var(--secondary);
    text-align: center;
    margin-bottom: var(--space-5);
}
.referral-code-label {
    font-size: var(--font-size-sm);
    opacity: 0.8;
    margin-bottom: var(--space-2);
}
.referral-code {
    display: inline-flex;
    align-items: center;
    gap: var(--space-2);
    padding: var(--space-3) var(--space-5);
    background: rgba(26, 26, 46, 0.2);
    border-radius: var(--radius-lg);
    margin-bottom: var(--space-4);
}
.referral-code-text {
    font-size: var(--font-size-xl);
    font-weight: 700;
    letter-spacing: 2px;
}
.copy-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 36px;
    height: 36px;
    background: rgba(255, 255, 255, 0.2);
    border: none;
    border-radius: var(--radius);
    color: var(--secondary);
    cursor: pointer;
}
.copy-btn:hover { background: rgba(255, 255, 255, 0.3); }
.referral-stats {
    display: flex;
    justify-content: center;
    gap: var(--space-8);
}
.referral-stat { text-align: center; }
.referral-stat-value {
    display: block;
    font-size: var(--font-size-2xl);
    font-weight: 700;
}
.referral-stat-label {
    font-size: var(--font-size-xs);
    opacity: 0.7;
}

/* BALANCE CARD */
.balance-card {
    padding: var(--space-6);
    background: var(--primary-gradient);
    border-radius: var(--radius-xl);
    color: var(--secondary);
    text-align: center;
    margin-bottom: var(--space-5);
}
.balance-label {
    font-size: var(--font-size-sm);
    opacity: 0.8;
    margin: 0 0 var(--space-2);
}
.balance-amount {
    font-size: var(--font-size-4xl);
    font-weight: 800;
    margin: 0 0 var(--space-1);
}
.balance-points {
    font-size: var(--font-size-sm);
    opacity: 0.8;
    margin: 0 0 var(--space-5);
}
.balance-actions {
    display: flex;
    justify-content: center;
    gap: var(--space-3);
}

/* REWARD CARDS */
.reward-card {
    display: flex;
    align-items: center;
    gap: var(--space-4);
    padding: var(--space-4);
    background: var(--bg-card);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
}
.reward-icon {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 48px;
    height: 48px;
    background: var(--primary-gradient);
    border-radius: var(--radius);
    color: var(--secondary);
    flex-shrink: 0;
}
.reward-icon svg { width: 24px; height: 24px; }
.reward-content { flex: 1; }
.reward-title {
    font-size: var(--font-size-sm);
    font-weight: 600;
    margin: 0 0 var(--space-1);
}
.reward-description {
    font-size: var(--font-size-xs);
    color: var(--text-muted);
    margin: 0;
}

/* TRANSACTION LIST */
.transaction-list {
    background: var(--bg-card);
    border-radius: var(--radius-lg);
    overflow: hidden;
}
.transaction-item {
    display: flex;
    align-items: center;
    gap: var(--space-3);
    padding: var(--space-4);
    border-bottom: 1px solid var(--gray-100);
}
.transaction-item:last-child { border-bottom: none; }
.transaction-icon {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    border-radius: var(--radius-full);
    flex-shrink: 0;
}
.transaction-icon.earn { background: rgba(16, 185, 129, 0.15); color: var(--success); }
.transaction-icon.spend { background: rgba(239, 68, 68, 0.15); color: var(--danger); }
.transaction-icon svg { width: 18px; height: 18px; }
.transaction-content { flex: 1; min-width: 0; }
.transaction-title {
    font-size: var(--font-size-sm);
    font-weight: 500;
    margin: 0 0 2px;
    color: var(--text-primary);
}
.transaction-date {
    font-size: var(--font-size-xs);
    color: var(--text-muted);
}
.transaction-amount {
    font-size: var(--font-size-sm);
    font-weight: 600;
    white-space: nowrap;
}
.transaction-amount.positive { color: var(--success); }
.transaction-amount.negative { color: var(--danger); }

/* RESPONSIVE */
@media (min-width: 768px) {
    .menu-toggle { display: none; }
    .bottom-nav { display: none; }
    .sidebar { transform: translateX(0); top: 60px; width: 260px; border-right: 1px solid var(--gray-200); }
    .sidebar-header { display: none; }
    .sidebar-overlay { display: none; }
    .main-content { margin-left: 260px; padding-bottom: var(--space-6); }
    .article-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (min-width: 1024px) {
    .sidebar { width: 280px; }
    .main-content { margin-left: 280px; }
    .page-content { padding: var(--space-6); }
    .article-grid { grid-template-columns: repeat(3, 1fr); }
}