/**
 * FlowX4 Header & Navigation
 * ==========================
 */

/* ============================================
   HEADER
   ============================================ */
.header {
    position: sticky;
    top: 0;
    z-index: var(--z-sticky);
    display: grid;
    grid-template-columns: 1fr auto 1fr;
    align-items: center;
    height: var(--header-height);
    padding: 0 var(--space-4);
    background: var(--color-bg-secondary);
    border-bottom: 1px solid var(--color-border-default);
    backdrop-filter: blur(12px);
}

.header-left {
    display: flex;
    align-items: center;
    gap: var(--space-6);
    justify-self: start;
}

.header-center {
    display: flex;
    align-items: center;
    gap: var(--space-3);
    justify-self: center;
}

.header-right {
    display: flex;
    align-items: center;
    gap: var(--space-3);
    justify-self: end;
}

/* Chart Info (центрированная информация о монете) */
.chart-info {
    display: flex;
    align-items: center;
    gap: 12px;
}

.chart-info__symbol {
    font-size: 16px;
    font-weight: 600;
    color: var(--color-text-primary);
}

.chart-info__exchange {
    font-size: 11px;
    color: var(--color-text-tertiary);
}

.chart-info__exchanges {
    display: flex;
    gap: 4px;
}

.chart-info__exc-btn {
    padding: 2px 8px;
    border-radius: 4px;
    color: var(--color-text-secondary);
    text-decoration: none;
    font-size: 11px;
}

.chart-info__exc-btn--active {
    background: var(--color-accent-primary);
    color: white;
}

/* Mobile Exchange Dropdown */
.chart-info__exc-mobile {
    display: none;
    position: relative;
}

.chart-info__exc-mobile-btn {
    display: flex;
    align-items: center;
    gap: 4px;
    padding: 2px 8px;
    border-radius: 4px;
    background: var(--color-accent-primary);
    color: white;
    font-size: 11px;
    font-weight: 500;
    cursor: pointer;
    border: none;
}

.chart-info__exc-mobile-list {
    display: none;
    flex-direction: column;
    position: absolute;
    top: 100%;
    left: 0;
    margin-top: 4px;
    min-width: 150px;
    background: var(--color-bg-elevated);
    border: 1px solid var(--color-border-default);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-lg);
    z-index: var(--z-dropdown);
    padding: var(--space-1) 0;
}

.chart-info__exc-mobile-list.open {
    display: flex;
}

.chart-info__exc-mobile-item {
    padding: var(--space-2) var(--space-3);
    font-size: 12px;
    color: var(--color-text-secondary);
    text-decoration: none;
}

.chart-info__exc-mobile-item:hover {
    background: var(--color-surface-hover);
    color: var(--color-text-primary);
}

.chart-info__exc-mobile-item--active {
    color: var(--color-accent-primary);
    background: var(--color-accent-primary-muted);
}

.chart-info__interval {
    font-size: 11px;
    font-weight: 500;
    padding: 2px 8px;
    background: var(--color-accent-primary-muted);
    color: var(--color-accent-primary);
    border-radius: 4px;
}

.chart-info__divider {
    width: 1px;
    height: 20px;
    background: var(--color-border-default);
}

.chart-info__price {
    font-size: 16px;
    font-weight: 600;
    color: var(--color-text-primary);
}

.chart-info__settings {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 28px;
    height: 28px;
    padding: 0;
    background: transparent;
    border: 1px solid var(--color-border-default);
    border-radius: 4px;
    color: var(--color-text-secondary);
    cursor: pointer;
    transition: all var(--transition-fast);
}

.chart-info__settings:hover {
    background: var(--color-accent-primary-muted);
    border-color: var(--color-accent-primary);
    color: var(--color-accent-primary);
}

.chart-info__settings.active {
    background: var(--color-accent-primary);
    border-color: var(--color-accent-primary);
    color: white;
}

/* Logo */
.logo {
    position: relative;
    display: flex;
    align-items: center;
    gap: var(--space-2);
}

.logo svg {
    width: 28px;
    height: 28px;
}

/* WebSocket Status Indicator */
.logo-status {
    position: absolute;
    bottom: -2px;
    right: -2px;
    width: 10px;
    height: 10px;
    border-radius: var(--radius-full);
    background-color: var(--color-text-muted);
    border: 2px solid var(--color-bg-secondary);
    transition: background-color var(--transition-normal), box-shadow var(--transition-normal);
}

.logo-status--connected {
    background-color: var(--color-success);
    box-shadow: var(--shadow-glow-success);
}

.logo-status--connecting {
    background-color: var(--color-warning);
    animation: ws-pulse 1s ease-in-out infinite;
}

.logo-status--blink {
    animation: ws-blink 0.3s ease-out;
}

@keyframes ws-blink {
    0%, 100% { transform: scale(1); }
    50% { transform: scale(1.5); box-shadow: 0 0 15px var(--color-success); }
}

@keyframes ws-pulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.4; }
}

/* ============================================
   NAVIGATION
   ============================================ */
.nav {
    display: flex;
    align-items: center;
    gap: var(--space-1);
}

.nav-item {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    padding: var(--space-2) var(--space-3);
    font-size: var(--font-size-sm);
    font-weight: var(--font-weight-medium);
    color: var(--color-text-secondary);
    border-radius: var(--radius-md);
    transition: all var(--transition-fast);
}

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

.nav-item--active {
    color: var(--color-accent-primary);
    background: var(--color-accent-primary-muted);
}

.nav-item svg,
.nav-item__icon {
    width: 18px;
    height: 18px;
    flex-shrink: 0;
}

/* Dropdown Navigation */
.nav-dropdown {
    position: relative;
}

.nav-dropdown-toggle {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    padding: var(--space-2) var(--space-3);
    font-size: var(--font-size-sm);
    font-weight: var(--font-weight-medium);
    color: var(--color-text-secondary);
    border-radius: var(--radius-md);
    transition: all var(--transition-fast);
    cursor: pointer;
}

.nav-dropdown-toggle:hover {
    color: var(--color-text-primary);
    background: var(--color-surface-hover);
}

.nav-dropdown-toggle--active {
    color: var(--color-accent-primary);
    background: var(--color-accent-primary-muted);
}

.nav-dropdown-arrow {
    width: 12px;
    height: 12px;
    transition: transform var(--transition-fast);
}

.nav-dropdown:hover .nav-dropdown-arrow {
    transform: rotate(180deg);
}

.nav-dropdown-content {
    position: absolute;
    top: 100%;
    left: 0;
    min-width: 200px;
    padding: var(--space-1) 0;
    background: var(--color-bg-elevated);
    border: 1px solid var(--color-border-default);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
    opacity: 0;
    visibility: hidden;
    transform: translateY(-8px);
    transition: all var(--transition-fast);
    z-index: var(--z-dropdown);
}

.nav-dropdown:hover .nav-dropdown-content {
    opacity: 1;
    visibility: visible;
    transform: translateY(4px);
}

.nav-dropdown-link {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    padding: var(--space-2) var(--space-4);
    font-size: var(--font-size-sm);
    color: var(--color-text-secondary);
    transition: all var(--transition-fast);
}

.nav-dropdown-link:hover {
    color: var(--color-text-primary);
    background: var(--color-surface-hover);
}

.nav-dropdown-link--active {
    color: var(--color-accent-primary);
    background: var(--color-accent-primary-muted);
}

.nav-dropdown-item {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    padding: var(--space-2) var(--space-3);
    font-size: var(--font-size-sm);
    color: var(--color-text-secondary);
    transition: all var(--transition-fast);
}

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

.nav-dropdown-item.active {
    color: var(--color-accent-primary);
    background: var(--color-accent-primary-muted);
}

.nav-dropdown-item svg {
    width: 16px;
    height: 16px;
    flex-shrink: 0;
}

/* Header Search */
.header-search { width: 180px; }
.header-search .symbol-autocomplete { max-width: 180px; }
.header-search .symbol-autocomplete__input { height: 32px; font-size: var(--font-size-xs); }
.header-search .symbol-autocomplete__dropdown { min-width: 220px; right: 0; left: auto; }

/* Header Buttons */
.header-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-2);
    padding: var(--space-2) var(--space-3);
    font-size: var(--font-size-sm);
    font-weight: var(--font-weight-medium);
    color: var(--color-text-secondary);
    border-radius: var(--radius-md);
    transition: all var(--transition-fast);
}

.header-btn:hover {
    color: var(--color-text-primary);
    background: var(--color-surface-hover);
}

.header-btn svg {
    width: 18px;
    height: 18px;
}

/* Header Orders Button */
.header-orders {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 32px;
    height: 32px;
    font-size: 13px;
    font-weight: 600;
    color: var(--color-warning);
    background: transparent;
    border: 1px solid rgba(234, 179, 8, 0.4);
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: all var(--transition-fast);
}

.header-orders:hover {
    color: white;
    background: var(--color-warning);
    border-color: var(--color-warning);
}

/* Header Wallet Button */
.header-wallet {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 32px;
    height: 32px;
    font-size: 13px;
    font-weight: 600;
    color: var(--color-text-secondary);
    background: transparent;
    border: 1px solid var(--color-border-default);
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: all var(--transition-fast);
}

.header-wallet:hover {
    color: var(--color-accent-primary);
    background: var(--color-accent-primary-muted);
    border-color: var(--color-accent-primary);
}

/* Header User Icon */
.header-user {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 32px;
    height: 32px;
    color: var(--color-text-secondary);
    border-radius: var(--radius-full);
    transition: all var(--transition-fast);
}

.header-user:hover {
    color: var(--color-accent-primary);
    background: var(--color-accent-primary-muted);
}

.header-user svg {
    width: 20px;
    height: 20px;
}

/* Header Search Toggle (mobile) */
.header-search-toggle {
    display: none;
    align-items: center;
    justify-content: center;
    width: 32px;
    height: 32px;
    background: transparent;
    border: 1px solid var(--color-border-default);
    border-radius: var(--radius-md);
    color: var(--color-text-secondary);
    cursor: pointer;
    transition: all var(--transition-fast);
}

.header-search-toggle:hover {
    color: var(--color-accent-primary);
    border-color: var(--color-accent-primary);
}

/* Header Burger (mobile) */
.header-burger {
    display: none;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    gap: 5px;
    width: 32px;
    height: 32px;
    padding: 0;
    background: transparent;
    border: none;
    cursor: pointer;
}

.header-burger span {
    display: block;
    width: 20px;
    height: 2px;
    background: var(--color-text-primary);
    border-radius: 2px;
    transition: all var(--transition-fast);
}

.header-burger--active span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.header-burger--active span:nth-child(2) { opacity: 0; }
.header-burger--active span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* Mobile Burger */
.nav-burger {
    display: none;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    gap: 5px;
    width: 32px;
    height: 32px;
    padding: 0;
    z-index: calc(var(--z-sticky) + 1);
}

.nav-burger span {
    display: block;
    width: 20px;
    height: 2px;
    background: var(--color-text-primary);
    border-radius: 2px;
    transition: all var(--transition-fast);
}

.nav-burger--active span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav-burger--active span:nth-child(2) { opacity: 0; }
.nav-burger--active span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }