/**
 * UNIVERSAL HEADER COMPONENT STYLES
 * Version: 1.0.0
 *
 * Universal header component for all easykawa modules.
 * Uses CSS variables from themes.css for automatic light/dark theme support.
 *
 * Features:
 * - Consistent header structure across all modules
 * - Workspace selector positioning (left, after title)
 * - Optional elements: home button, avatar, theme toggle
 * - Settings dropdown with predefined item types
 * - Language switcher integration
 * - Module-specific second row support (.module-controls-row)
 * - Responsive design
 *
 * Usage:
 * See components/Header.js for JavaScript implementation
 */

/* ========================================
   HEADER CONTAINER
   ======================================== */

header {
    display: flex;
    flex-direction: column;
    position: sticky;
    top: 0;
    z-index: var(--z-fixed);
    background-color: var(--bg-secondary) !important;
    border-bottom: 1px solid var(--border-primary);
    box-shadow: 0 1px 2px 0 rgb(0 0 0 / 0.05);
    transition: background-color var(--transition-base);
    gap: 0 !important;
    align-items: stretch !important;
}

/* ========================================
   HEADER TOP ROW (managed by Header.js)
   ======================================== */

.header-top-row {
    display: flex;
    align-items: center;
    width: 100%;
    padding: 1rem 1.5rem;
    min-height: 60px;
    gap: 1rem;
    flex-wrap: nowrap;
}

/* ========================================
   TITLE CONTAINER (left side)
   ======================================== */

.title-container {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    flex: 0 1 auto;
    min-width: 0;
}

.title-container h1 {
    margin: 0;
    font-size: 1.75rem;
    font-weight: 600;
    color: var(--text-primary);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    min-width: 0;
}

/* Home navigation button (apps icon) */
.home-nav-btn {
    position: relative; /* Required for data-tooltip CSS */
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    background-color: transparent;
    border: none;
    border-radius: var(--radius-md);
    color: var(--text-secondary);
    cursor: pointer;
    transition: all var(--transition-base);
    text-decoration: none;
}

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

.home-nav-btn .material-icons {
    font-size: 24px;
}

/* Avatar (optional) */
.avatar {
    width: 36px;
    height: 36px;
    border-radius: 50%;
    overflow: hidden;
    flex-shrink: 0;
    background-color: var(--bg-tertiary);
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: transform var(--transition-fast);
}

.avatar:hover {
    transform: scale(1.05);
}

.avatar img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.avatar.hidden {
    display: none;
}

/* Avatar with initials (text-based) */
.avatar-initials {
    font-size: 14px;
    font-weight: 600;
    color: var(--text-primary);
    user-select: none;
}

/* Desktop: show title */
.title-container h1 {
    display: block;
}

/* Avatar in actions row */
.actions .avatar {
    margin-right: 0.5rem;
}

/* Workspace selector container (positioned after title) */
#workspace-selector-container {
    margin-left: 0.5rem;
    flex-shrink: 0;
}

/* ========================================
   ACTIONS CONTAINER (right side)
   ======================================== */

.actions {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    margin-left: auto;
    flex-shrink: 0;
}

/* Icon buttons (theme, logout without text) */
.icon-btn {
    position: relative; /* Required for data-tooltip CSS */
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    padding: 0;
    background-color: transparent;
    border: none;
    border-radius: var(--radius-md);
    color: var(--text-secondary);
    cursor: pointer;
    transition: all var(--transition-base);
    font-size: 0;
}

.icon-btn:hover {
    background-color: var(--bg-hover);
    color: var(--text-primary);
}

.icon-btn .material-icons {
    font-size: 20px;
}

/* Logout button with text */
.logout-btn-with-text {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.5rem 1rem;
    background-color: transparent;
    border: none;
    border-radius: var(--radius-md);
    color: var(--text-secondary);
    cursor: pointer;
    transition: all var(--transition-base);
    font-family: var(--font-family);
    font-size: var(--font-size-sm);
    font-weight: var(--font-weight-medium);
}

.logout-btn-with-text:hover {
    background-color: var(--bg-hover);
    color: var(--text-primary);
}

.logout-btn-with-text .material-icons {
    font-size: 20px;
}

/* ========================================
   SETTINGS DROPDOWN
   ======================================== */

.settings-dropdown {
    position: relative;
}

.settings-btn {
    position: relative; /* Required for data-tooltip CSS */
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    padding: 0;
    background-color: transparent;
    border: none;
    border-radius: var(--radius-md);
    color: var(--text-secondary);
    cursor: pointer;
    transition: all var(--transition-base);
}

.settings-btn:hover {
    background-color: var(--bg-hover);
    color: var(--text-primary);
}

.settings-btn .material-icons {
    font-size: 20px;
}

.settings-dropdown .dropdown-menu {
    display: none;
    position: absolute;
    right: 0;
    left: auto;
    top: calc(100% + 8px);
    min-width: 240px;
    max-width: calc(100vw - 32px);
    background-color: var(--bg-primary);
    border: 1px solid var(--border-primary);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
    overflow: hidden;
    z-index: var(--z-dropdown);
}

.settings-dropdown .dropdown-menu.show {
    display: block;
}

/* Dropdown item - button type */
.dropdown-item {
    display: flex;
    align-items: center;
    gap: 12px;
    width: 100%;
    padding: 12px 16px;
    margin: 0;
    border: none;
    background: none;
    color: var(--text-primary);
    cursor: pointer;
    text-align: left;
    font-family: var(--font-family);
    font-size: var(--font-size-sm);
    transition: background-color var(--transition-base);
}

.dropdown-item:hover {
    background-color: var(--bg-hover);
}

.dropdown-item .material-icons {
    font-size: 20px;
    color: var(--text-secondary);
}

/* Dropdown divider */
.dropdown-divider {
    height: 1px;
    background-color: var(--border-primary);
    margin: 8px 0;
}

/* Dropdown label (non-interactive header) */
.dropdown-item-label {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 8px 12px;
    font-size: 13px;
    font-weight: 600;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.dropdown-item-label .material-icons {
    font-size: 18px;
}

/* Dropdown item group (for language switcher) */
.dropdown-item-group {
    margin-bottom: 8px;
}

/* Toggle switch in dropdown */
.dropdown-toggle-item {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 12px 16px;
    cursor: pointer;
    transition: background-color var(--transition-base);
}

.dropdown-toggle-item:hover {
    background-color: var(--bg-hover);
}

.dropdown-toggle-text {
    display: flex;
    align-items: center;
    gap: 12px;
    font-size: var(--font-size-sm);
    color: var(--text-primary);
}

.dropdown-toggle-text .material-icons {
    font-size: 20px;
    color: var(--text-secondary);
}

.toggle-switch {
    width: 44px;
    height: 24px;
    background-color: var(--bg-tertiary);
    border-radius: 12px;
    position: relative;
    transition: background-color var(--transition-base);
    cursor: pointer;
}

.toggle-switch.active {
    background-color: var(--brand-primary);
}

.toggle-switch-handle {
    position: absolute;
    top: 2px;
    left: 2px;
    width: 20px;
    height: 20px;
    background-color: var(--bg-primary);
    border-radius: 50%;
    transition: transform var(--transition-base);
}

.toggle-switch.active .toggle-switch-handle {
    transform: translateX(20px);
}

/* Select in dropdown */
.dropdown-select-item {
    padding: 12px 16px;
}

.dropdown-select-label {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 8px;
    font-size: var(--font-size-sm);
    font-weight: 500;
    color: var(--text-primary);
}

.dropdown-select-label .material-icons {
    font-size: 20px;
    color: var(--text-secondary);
}

.dropdown-select {
    width: 100%;
    padding: 8px 12px;
    border: 1px solid var(--border-primary);
    border-radius: var(--radius-md);
    background-color: var(--bg-primary);
    color: var(--text-primary);
    font-family: var(--font-family);
    font-size: var(--font-size-sm);
    cursor: pointer;
    transition: border-color var(--transition-base);
}

.dropdown-select:hover {
    border-color: var(--border-hover);
}

.dropdown-select:focus {
    outline: none;
    border-color: var(--brand-primary);
}

/* ========================================
   WORKSPACE SELECTOR IN DROPDOWN
   ======================================== */

.dropdown-workspace-selector {
    padding: 8px 12px 8px 16px;
    margin: 0;
}

/* Override ID selector specificity when inside dropdown */
#workspace-selector-container.dropdown-workspace-selector {
    margin-left: 0;
}

/* Override workspace-selector styles inside dropdown - no visual container */
.dropdown-workspace-selector .workspace-selector {
    display: flex;
    align-items: center;
    width: 100%;
    margin-left: 0;
    padding: 0;
    gap: 12px;
    background-color: transparent;
    border: none;
    border-radius: 0;
    cursor: default;
}

/* Button with icon */
.dropdown-workspace-selector .workspace-selector-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 32px;
    height: 32px;
    padding: 0;
    border: 1px solid var(--border-primary);
    border-radius: var(--radius-md);
    background-color: var(--bg-tertiary);
    color: var(--text-secondary);
    cursor: pointer;
    transition: all var(--transition-base);
    flex-shrink: 0;
}

.dropdown-workspace-selector .workspace-selector-btn:hover {
    background-color: var(--bg-hover);
    color: var(--brand-primary);
}

.dropdown-workspace-selector .workspace-selector-btn .material-icons {
    font-size: 18px;
}

.dropdown-workspace-selector .workspace-selector-text {
    flex: 1;
    font-size: var(--font-size-sm);
    color: var(--text-primary);
    white-space: nowrap;
}

.dropdown-workspace-selector .workspace-selector-error {
    margin-left: 0;
    width: 100%;
    border-radius: var(--radius-md);
}

/* ========================================
   LANGUAGE SWITCHER (special integration)
   ======================================== */

.language-switcher {
    margin-bottom: 8px;
}

.lang-option {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 8px 12px 8px 16px;
    width: 100%;
    border: none;
    background: none;
    color: var(--text-primary);
    cursor: pointer;
    text-align: left;
    font-family: var(--font-family);
    font-size: var(--font-size-sm);
    transition: background-color var(--transition-base);
}

.lang-option:hover {
    background-color: var(--bg-hover);
}

.lang-option .check-icon {
    opacity: 0;
    font-size: 18px;
    color: var(--brand-primary);
    margin-left: auto;
}

.lang-option.active .check-icon {
    opacity: 1;
}

/* ========================================
   MODULE CONTROLS ROW (second row)
   Managed by individual modules, not Header.js
   ======================================== */

.module-controls-row {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 1rem 1.5rem;
    background-color: var(--bg-primary);
    flex-wrap: wrap;
    position: sticky;
    top: 74px;
    z-index: calc(var(--z-sticky) - 1);
}

.module-controls-row.hidden {
    display: none;
}

/* ========================================
   RESPONSIVE DESIGN
   ======================================== */

@media (max-width: 768px) {
    .header-top-row {
        padding: 1rem 1.5rem;
        gap: 0.5rem;
    }

    /* Mobile: hide title */
    .title-container h1 {
        display: none !important;
    }

    .home-nav-btn,
    .icon-btn,
    .settings-btn {
        width: 36px;
        height: 36px;
    }

    .home-nav-btn .material-icons,
    .icon-btn .material-icons,
    .settings-btn .material-icons {
        font-size: 18px;
    }

    .logout-btn-with-text span {
        display: none;
    }

    .logout-btn-with-text {
        width: 36px;
        height: 36px;
        padding: 0;
    }

    .module-controls-row {
        padding: 1rem 1.5rem;
        gap: 0.5rem;
        top: 68px;
    }

    .settings-dropdown .dropdown-menu {
        min-width: 200px;
        max-width: calc(100vw - 16px);
    }
}

@media (max-width: 480px) {
    .header-top-row {
        padding: 0.75rem;
    }

    .title-container h1 {
        font-size: 1.1rem;
    }

    .title-container {
        gap: 0.5rem;
    }

    .actions {
        gap: 0.25rem;
    }

    #workspace-selector-container {
        margin-left: 0.25rem;
    }

    .module-controls-row {
        top: 60px;
    }

    /* Prevent dropdown overflow on narrow screens */
    .settings-dropdown .dropdown-menu {
        position: fixed;
        top: 60px;
        left: 8px;
        right: 8px;
        min-width: auto;
        width: auto;
    }
}

/* ========================================
   DARK THEME ADJUSTMENTS
   ======================================== */

[data-theme='dark'] .dropdown-menu {
    box-shadow: 0 10px 15px -3px rgba(0, 0, 0, 0.5);
}

[data-theme='dark'] header {
    border-bottom: none;
}

[data-theme='dark'] .header-top-row {
    border-bottom: none;
}

[data-theme='dark'] .module-controls-row {
    /* No dark theme overrides needed */
}