/**
 * Login Navigation CSS
 * Desktop: horizontal dropdown groups
 * Mobile: sidebar with accordion groups
 *
 * @date 2026-02-21
 */

/* ==========================================
   Mobile Header - Sticky on Mobile Only
   ========================================== */

@media (max-width: 768px) {
    .header-login {
        position: fixed;
        top: 0;
        left: 0;
        right: 0;
        z-index: 1000;
        background: #fff;
        box-shadow: 0 2px 5px rgba(0, 0, 0, 0.1);
        padding: 10px 15px;
    }

    body {
        padding-top: 60px;
    }
}

/* ==========================================
   Hamburger Menu Button
   ========================================== */

.hamburger-btn {
    display: none;
    position: relative;
    width: 44px;
    height: 44px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 10px;
    z-index: 1001;
}

.hamburger-icon {
    position: relative;
    display: block;
    width: 24px;
    height: 2px;
    background: #333;
    transition: all 0.3s ease;
}

.hamburger-icon::before,
.hamburger-icon::after {
    content: '';
    position: absolute;
    left: 0;
    width: 24px;
    height: 2px;
    background: #333;
    transition: all 0.3s ease;
}

.hamburger-icon::before {
    top: -8px;
}

.hamburger-icon::after {
    top: 8px;
}

.hamburger-btn.active .hamburger-icon {
    background: transparent;
}

.hamburger-btn.active .hamburger-icon::before {
    top: 0;
    transform: rotate(45deg);
}

.hamburger-btn.active .hamburger-icon::after {
    top: 0;
    transform: rotate(-45deg);
}

/* ==========================================
   Desktop Navigation (default)
   ========================================== */

/* Prevent dropdown clipping inside table layouts */
table[align="center"] td {
    overflow: visible;
}

.nav-login {
    display: block;
    margin-bottom: 10px;
}

.nav-login__list {
    display: flex;
    justify-content: center;
    align-items: center;
    list-style: none;
    margin: 0;
    padding: 12px 0;
    gap: 2px;
}

/* --- SVG icons --- */
.nav-login__icon {
    display: inline-block;
    vertical-align: -2px;
    flex-shrink: 0;
    margin-right: 5px;
}

/* --- Top-level items --- */
.nav-login__item {
    position: relative;
}

.nav-login__item > a,
.nav-login__toggle {
    display: inline-block;
    padding: 6px 14px;
    text-decoration: none;
    color: #0066cc;
    font-size: 14px;
    font-weight: 600;
    white-space: nowrap;
    border-radius: 4px;
    transition: background 0.15s, color 0.15s;
}

.nav-login__item > a:hover,
.nav-login__toggle:hover {
    background: #f0f5ff;
    color: #004499;
    text-decoration: none;
}

/* Active page indicator */
.nav-login__item--active > a,
.nav-login__item--active > .nav-login__toggle {
    color: #004499;
    border-bottom: 2px solid #0066cc;
    border-radius: 4px 4px 0 0;
}

/* --- Toggle button (dropdown trigger) --- */
.nav-login__toggle {
    background: none;
    border: none;
    cursor: pointer;
    font-family: inherit;
}

.nav-login__arrow {
    display: inline-block;
    width: 0;
    height: 0;
    margin-left: 5px;
    vertical-align: middle;
    border-left: 4px solid transparent;
    border-right: 4px solid transparent;
    border-top: 4px solid currentColor;
    transition: transform 0.2s;
}

/* Arrow rotates when open */
.nav-login__item--has-dropdown.is-open > .nav-login__toggle .nav-login__arrow,
.nav-login__item--has-dropdown:hover > .nav-login__toggle .nav-login__arrow {
    transform: rotate(180deg);
}

/* --- Dropdown panel --- */
.nav-login__dropdown {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    min-width: 200px;
    background: #fff;
    border: 1px solid #e0e0e0;
    border-radius: 0 4px 4px 4px;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
    z-index: 100;
    list-style: none;
    margin: 0;
    padding: 4px 0;
}

/* Hover-based opening on desktop */
.nav-login__item--has-dropdown:hover > .nav-login__dropdown {
    display: block;
}

/* JS-based opening (for keyboard/touch) */
.nav-login__item--has-dropdown.is-open > .nav-login__dropdown {
    display: block;
}

/* Dropdown links */
.nav-login__dropdown a {
    display: block;
    padding: 8px 16px;
    color: #333;
    text-decoration: none;
    font-size: 14px;
    font-weight: 400;
    white-space: nowrap;
    transition: background 0.1s;
}

.nav-login__dropdown a:hover {
    background: #f0f5ff;
    color: #0066cc;
    text-decoration: none;
}

/* Active sub-link */
.nav-login__dropdown a.nav-login__link--active {
    color: #004499;
    font-weight: 600;
    background: #e6f0ff;
}

/* --- Dropdown separator (visual group divider) --- */
.nav-login__separator {
    border-top: 1px solid #e0e0e0;
    margin-top: 4px;
    padding-top: 4px;
}

/* --- Logout link (red) --- */
.nav-login__item--logout > a {
    color: #cc0000;
    font-weight: 600;
}

.nav-login__item--logout > a:hover {
    background: #fff0f0;
    color: #990000;
}

/* ==========================================
   Tablet Adjustments (769px - 1024px)
   ========================================== */

@media (min-width: 769px) and (max-width: 1024px) {
    .nav-login__item > a,
    .nav-login__toggle {
        font-size: 13px;
        padding: 5px 10px;
    }

    .nav-login__dropdown a {
        font-size: 13px;
        padding: 7px 14px;
    }

    .nav-login__list {
        gap: 0;
    }

    .nav-login__icon {
        width: 14px;
        height: 14px;
        margin-right: 3px;
    }
}

/* ==========================================
   Mobile Navigation Overlay
   ========================================== */

@media (max-width: 768px) {
    .hamburger-btn {
        display: block;
        position: fixed;
        top: 15px;
        left: 17px;
        transition: left 0.3s ease, background 0.2s ease;
        background: #f5f5f5;
        border: 1px solid #ddd;
        border-radius: 6px;
        box-shadow: 0 1px 4px rgba(0, 0, 0, 0.08);
    }

    .hamburger-btn.active {
        left: 256px;
        background: none;
        border-color: transparent;
        box-shadow: none;
    }

    /* Sidebar */
    .nav-login {
        position: fixed;
        top: 0;
        left: -310px;
        width: 310px;
        height: 100vh;
        background: #ffffff;
        box-shadow: 2px 0 10px rgba(0, 0, 0, 0.1);
        overflow-y: auto;
        z-index: 999;
        transition: left 0.3s ease;
        padding-top: 60px;
        margin-bottom: 0;
    }

    .nav-login.active {
        left: 0;
    }

    /* Vertical list */
    .nav-login__list {
        display: flex;
        flex-direction: column;
        align-items: stretch;
        padding: 0;
        gap: 0;
    }

    /* --- Top-level items --- */
    .nav-login__item {
        border-bottom: 1px solid #f0f0f0;
    }

    .nav-login__item > a {
        display: block;
        padding: 14px 20px;
        font-size: 16px;
        font-weight: 600;
        color: #333;
        border-radius: 0;
        border-bottom: none;
        min-height: 44px;
        line-height: 1.5;
    }

    .nav-login__item > a:hover,
    .nav-login__item > a:active {
        background: #f5f5f5;
        text-decoration: none;
    }

    .nav-login__item--active > a,
    .nav-login__item--active > .nav-login__toggle {
        border-bottom: none;
        color: #0066cc;
        border-radius: 0;
    }

    /* --- Toggle buttons as accordion --- */
    .nav-login__toggle {
        display: flex;
        justify-content: space-between;
        align-items: center;
        width: 100%;
        padding: 14px 20px;
        font-size: 16px;
        font-weight: 600;
        color: #333;
        text-align: left;
        border-radius: 0;
        min-height: 44px;
    }

    .nav-login__toggle:hover,
    .nav-login__toggle:active {
        background: #f5f5f5;
    }

    .nav-login__arrow {
        margin-left: auto;
        border-left: 5px solid transparent;
        border-right: 5px solid transparent;
        border-top: 5px solid #999;
        transition: transform 0.25s ease;
    }

    /* Disable hover-based opening on mobile */
    .nav-login__item--has-dropdown:hover > .nav-login__dropdown {
        display: none;
    }

    /* Only open via JS .is-open class on mobile */
    .nav-login__item--has-dropdown.is-open > .nav-login__dropdown {
        display: block;
    }

    .nav-login__item--has-dropdown.is-open > .nav-login__toggle .nav-login__arrow {
        transform: rotate(180deg);
    }

    /* --- Dropdown as accordion panel --- */
    .nav-login__dropdown {
        position: static;
        border: none;
        box-shadow: none;
        border-radius: 0;
        min-width: 0;
        padding: 0;
        background: #fafafa;
    }

    .nav-login__dropdown a {
        padding: 12px 20px 12px 36px;
        font-size: 15px;
        color: #444;
        min-height: 44px;
        line-height: 1.5;
        border-bottom: 1px solid #f0f0f0;
    }

    .nav-login__dropdown a:hover,
    .nav-login__dropdown a:active {
        background: #eef4ff;
    }

    .nav-login__dropdown a.nav-login__link--active {
        color: #0066cc;
        font-weight: 600;
        background: #e6f0ff;
    }

    /* --- Icons on mobile --- */
    .nav-login__icon {
        width: 18px;
        height: 18px;
        vertical-align: -3px;
        margin-right: 8px;
    }

    /* --- Logout --- */
    .nav-login__item--logout {
        margin-top: 8px;
        border-top: 2px solid #f0f0f0;
    }

    .nav-login__item--logout > a {
        color: #cc0000;
    }

    .nav-login__item--logout > a:hover {
        background: #fff0f0;
    }

    /* Backdrop overlay */
    .nav-backdrop {
        display: none;
        position: fixed;
        top: 0;
        left: 0;
        width: 100%;
        height: 100vh;
        background: rgba(0, 0, 0, 0.5);
        z-index: 998;
        opacity: 0;
        transition: opacity 0.3s ease;
    }

    .nav-backdrop.active {
        display: block;
        opacity: 1;
    }

    body.menu-open {
        overflow: hidden;
    }
}

/* ==========================================
   Mobile Header Container
   ========================================== */

@media (max-width: 768px) {
    .mobile-header-container {
        display: flex;
        align-items: center;
        justify-content: space-between;
    }

    .mobile-header-logo {
        flex: 1;
        font-size: 18px;
        font-weight: bold;
        color: #333;
    }
}

/* ==========================================
   Accessibility
   ========================================== */

.hamburger-btn:focus {
    outline: 2px solid #0066cc;
    outline-offset: 2px;
}

.nav-login__item > a:focus,
.nav-login__toggle:focus {
    outline: 2px solid #0066cc;
    outline-offset: -2px;
    background: #e6f2ff;
}

.nav-login__dropdown a:focus {
    outline: 2px solid #0066cc;
    outline-offset: -2px;
    background: #e6f2ff;
}

.skip-to-content {
    position: absolute;
    left: -9999px;
    z-index: 999;
}

.skip-to-content:focus {
    left: 0;
    top: 0;
    background: #0066cc;
    color: white;
    padding: 10px;
}

/* ==========================================
   Responsive Footer Adjustments
   ========================================== */

@media (max-width: 768px) {
    table[width="100%"] {
        font-size: 14px;
    }

    body {
        min-height: 100vh;
        display: flex;
        flex-direction: column;
    }

    td {
        padding: 5px;
    }

    td[width="12"],
    td.tabelle_05,
    td.tabelle_06,
    td.tabelle_07,
    td.tabelle_08 {
        padding: 0;
    }
}

/* ==========================================
   General Mobile Optimizations
   ========================================== */

@media (max-width: 480px) {
    .header-login {
        padding: 8px 10px;
    }

    body {
        padding-top: 55px;
        font-size: 14px;
    }

    h3 {
        font-size: 18px;
    }

    h4 {
        font-size: 16px;
    }

    table.settings {
        font-size: 13px;
    }

    table.settings th,
    table.settings td {
        padding: 8px 5px;
    }
}

/* ==========================================
   Print Styles
   ========================================== */

@media print {
    .hamburger-btn,
    .nav-backdrop {
        display: none;
    }

    .nav-login {
        position: static;
        display: none;
    }

    body {
        padding-top: 0 !important;
    }
}