/* --- Layout and Structural Styles --- */
.sidebar {
    transition: width 0.3s ease;
}

.sidebar-collapsed {
    width: 4.5rem;
}

.sidebar-expanded {
    width: 18rem;
}

.sidebar .nav-link span,
.sidebar .submenu span,
#sidebar-title {
    display: none;
}

.sidebar-expanded .nav-link span,
.sidebar-expanded .submenu span,
.sidebar-expanded #sidebar-title {
    display: inline;
}

.sidebar .submenu {
    display: none;
}

.sidebar .submenu.open {
    display: block;
}

.rotate-180 {
    transform: rotate(180deg);
}

.notification-dot {
    position: absolute;
    top: 2px;
    right: 2px;
    width: 8px;
    height: 8px;
    background-color: #ef4444;
    border-radius: 50%;
    border: 1px solid white;
}

.content-view,
#login-view,
#welcome-view,
#app-view {
    display: none;
}

.content-view.active,
#login-view.active,
#welcome-view.active,
#app-view.active {
    display: block;
}

.nav-item.active {
    background-color: #eff6ff;
    color: #2563eb;
    font-weight: 600;
}

.app-shell {
    display: flex;
    flex-direction: column;
    height: 100vh;
    position: relative;
}

.app-main {
    flex: 1;
    display: flex;
    flex-direction: column;
    background: linear-gradient(180deg, #f8fafc 0%, #f1f5f9 100%);
}

.floating-menu {
    position: fixed;
    z-index: 80;
    display: flex;
    align-items: center;
    pointer-events: none;
}

.floating-menu[data-edge="right"] {
    top: 50%;
    right: 0.75rem;
    transform: translateY(-50%);
    flex-direction: row-reverse;
}

.floating-menu[data-edge="left"] {
    top: 50%;
    left: 0.75rem;
    transform: translateY(-50%);
    flex-direction: row;
}

.floating-menu[data-edge="bottom"] {
    left: 50%;
    bottom: 0.75rem;
    transform: translateX(-50%);
    flex-direction: column-reverse;
    gap: 0.75rem;
}

.floating-menu.is-dragging {
    transition: none;
}

.floating-menu__tab {
    pointer-events: auto;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    border: 1px solid rgba(255, 255, 255, 0.5);
    background: rgba(248, 250, 252, 0.72);
    color: #0f172a;
    font-weight: 600;
    box-shadow: 0 18px 36px -18px rgba(15, 23, 42, 0.7);
    backdrop-filter: blur(18px);
    transition: background 0.2s ease, box-shadow 0.2s ease, transform 0.2s ease;
    cursor: grab;
}

.floating-menu__tab:active {
    cursor: grabbing;
}

.floating-menu__tab:hover,
.floating-menu__tab:focus-visible {
    background: rgba(248, 250, 252, 0.9);
    outline: none;
    box-shadow: 0 24px 42px -18px rgba(15, 23, 42, 0.65);
}

.floating-menu[data-edge="right"] .floating-menu__tab,
.floating-menu[data-edge="left"] .floating-menu__tab {
    width: 56px;
    min-height: 190px;
    padding: 1.3rem 0.65rem;
    flex-direction: column;
}

.floating-menu[data-edge="right"] .floating-menu__tab {
    border-radius: 9999px 0 0 9999px;
}

.floating-menu[data-edge="left"] .floating-menu__tab {
    border-radius: 0 9999px 9999px 0;
}

.floating-menu[data-edge="bottom"] .floating-menu__tab {
    width: auto;
    min-height: auto;
    padding: 0.6rem 1.1rem;
    border-radius: 9999px;
    flex-direction: row;
    letter-spacing: 0.05em;
}

.floating-menu[data-edge="right"] .floating-menu__tab-label,
.floating-menu[data-edge="left"] .floating-menu__tab-label {
    writing-mode: vertical-rl;
    text-orientation: mixed;
    letter-spacing: 0.12em;
    font-size: 0.72rem;
    text-transform: uppercase;
}

.floating-menu[data-edge="left"] .floating-menu__tab-label {
    transform: rotate(180deg);
}

.floating-menu__tab-icon {
    font-size: 1.6rem;
}

.floating-menu__tab,
.floating-menu__close,
.floating-menu__submenu-item,
.floating-menu__section-trigger {
    pointer-events: auto;
}

.floating-menu.is-dragging .floating-menu__panel {
    opacity: 0;
    visibility: hidden;
    pointer-events: none;
    transition: none;
}

.floating-menu__panel {
    position: absolute;
    width: min(360px, calc(100vw - 2.5rem));
    max-height: min(80vh, 640px);
    display: flex;
    flex-direction: column;
    gap: 1rem;
    padding: 1.2rem;
    border-radius: 24px;
    border: 1px solid rgba(255, 255, 255, 0.45);
    background: rgba(248, 250, 252, 0.68);
    backdrop-filter: blur(22px);
    box-shadow: 0 40px 80px -45px rgba(15, 23, 42, 0.7);
    opacity: 0;
    visibility: hidden;
    pointer-events: none;
    transition: transform 0.25s ease, opacity 0.18s ease, visibility 0.2s ease;
}

.floating-menu[data-edge="right"] .floating-menu__panel {
    top: 50%;
    right: calc(100% + 0.75rem);
    transform: translateY(-50%) translateX(40px) scale(0.97);
    transform-origin: center right;
}

.floating-menu[data-edge="left"] .floating-menu__panel {
    top: 50%;
    left: calc(100% + 0.75rem);
    transform: translateY(-50%) translateX(-40px) scale(0.97);
    transform-origin: center left;
}

.floating-menu[data-edge="bottom"] .floating-menu__panel {
    left: 50%;
    bottom: calc(100% + 0.75rem);
    transform: translate(-50%, 40px) scale(0.97);
    transform-origin: bottom center;
}

.floating-menu.is-open .floating-menu__panel {
    opacity: 1;
    visibility: visible;
    pointer-events: auto;
}

.floating-menu.is-open[data-edge="right"] .floating-menu__panel {
    transform: translateY(-50%) translateX(0) scale(1);
}

.floating-menu.is-open[data-edge="left"] .floating-menu__panel {
    transform: translateY(-50%) translateX(0) scale(1);
}

.floating-menu.is-open[data-edge="bottom"] .floating-menu__panel {
    transform: translate(-50%, 0) scale(1);
}

.floating-menu__panel-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1rem;
}

.floating-menu__brand img {
    height: 44px;
    width: auto;
    filter: drop-shadow(0 4px 10px rgba(148, 163, 184, 0.45));
}

.floating-menu__close {
    border: none;
    border-radius: 9999px;
    background: rgba(241, 245, 249, 0.6);
    color: #0f172a;
    width: 2.5rem;
    height: 2.5rem;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: background 0.2s ease, transform 0.2s ease;
}

.floating-menu__close:hover,
.floating-menu__close:focus-visible {
    background: rgba(255, 255, 255, 0.85);
    outline: none;
}

.floating-menu__close:active {
    transform: scale(0.95);
}

.floating-menu__profile {
    display: flex;
    align-items: center;
    gap: 0.85rem;
    padding: 0.85rem 1rem;
    border-radius: 16px;
    background: rgba(255, 255, 255, 0.38);
    border: 1px solid rgba(255, 255, 255, 0.4);
}

.floating-menu__avatar {
    height: 48px;
    width: 48px;
    border-radius: 14px;
    object-fit: cover;
    box-shadow: 0 12px 25px -18px rgba(15, 23, 42, 0.6);
}

.floating-menu__profile-info {
    display: flex;
    flex-direction: column;
    gap: 0.1rem;
}

.floating-menu__user-email {
    font-size: 0.9rem;
    font-weight: 600;
    color: #0f172a;
}

.floating-menu__logout {
    padding: 0;
    border: none;
    background: none;
    color: #2563eb;
    font-size: 0.78rem;
    font-weight: 600;
    letter-spacing: 0.01em;
    cursor: pointer;
    text-decoration: underline;
    text-underline-offset: 3px;
}

.floating-menu__logout:hover,
.floating-menu__logout:focus-visible {
    color: #1d4ed8;
    outline: none;
}

.floating-menu__sections {
    display: flex;
    flex-direction: column;
    gap: 0.6rem;
    overflow-y: auto;
    padding-right: 0.2rem;
    scrollbar-width: thin;
}

.floating-menu__sections::-webkit-scrollbar {
    width: 6px;
}

.floating-menu__sections::-webkit-scrollbar-track {
    background: transparent;
}

.floating-menu__sections::-webkit-scrollbar-thumb {
    background: rgba(148, 163, 184, 0.4);
    border-radius: 9999px;
}

.floating-menu__section {
    background: rgba(255, 255, 255, 0.34);
    border-radius: 18px;
    padding: 0.35rem;
    transition: background 0.2s ease, box-shadow 0.2s ease, transform 0.2s ease;
    border: 1px solid rgba(255, 255, 255, 0.4);
}

.floating-menu__section.is-open {
    background: rgba(255, 255, 255, 0.58);
    box-shadow: 0 12px 25px -24px rgba(15, 23, 42, 0.65);
}

.floating-menu__section.is-dragging {
    opacity: 0.45;
}

.floating-menu__section.is-dragover {
    outline: 2px dashed rgba(37, 99, 235, 0.55);
    outline-offset: 4px;
}

.floating-menu__section-trigger {
    width: 100%;
    display: flex;
    align-items: center;
    gap: 0.65rem;
    padding: 0.6rem 0.8rem;
    border: none;
    border-radius: 12px;
    background: transparent;
    color: #0f172a;
    font-size: 0.95rem;
    font-weight: 600;
    cursor: pointer;
    transition: background 0.2s ease, color 0.2s ease, transform 0.2s ease;
}

.floating-menu__section-trigger:hover,
.floating-menu__section-trigger:focus-visible {
    background: rgba(37, 99, 235, 0.12);
    color: #1d4ed8;
    outline: none;
}

.floating-menu__section-trigger.nav-item.active {
    background: rgba(37, 99, 235, 0.18);
    color: #1d4ed8;
    box-shadow: inset 0 0 0 1px rgba(37, 99, 235, 0.25);
}

.floating-menu__section-icon {
    font-size: 1.6rem;
    flex-shrink: 0;
}

.floating-menu__section-label {
    flex: 1;
    text-align: left;
}

.floating-menu__submenu {
    display: none;
    flex-direction: column;
    gap: 0.3rem;
    margin-top: 0.35rem;
    padding-left: 0.25rem;
    padding-bottom: 0.3rem;
}

.floating-menu__section.is-open .floating-menu__submenu {
    display: flex;
}

.floating-menu__submenu-item {
    width: 100%;
    display: flex;
    align-items: center;
    gap: 0.55rem;
    padding: 0.45rem 0.7rem;
    border: none;
    border-radius: 10px;
    background: transparent;
    color: #1f2937;
    font-size: 0.9rem;
    font-weight: 500;
    cursor: pointer;
    transition: background 0.2s ease, transform 0.2s ease, color 0.2s ease;
}

.floating-menu__submenu-item:hover,
.floating-menu__submenu-item:focus-visible {
    background: rgba(37, 99, 235, 0.12);
    color: #1d4ed8;
    outline: none;
}

.floating-menu__submenu-item.nav-item.active {
    background: rgba(37, 99, 235, 0.18);
    color: #1d4ed8;
    box-shadow: inset 0 0 0 1px rgba(37, 99, 235, 0.2);
}

.floating-menu__submenu-icon {
    font-size: 1.3rem;
    flex-shrink: 0;
}

@media (max-width: 768px) {
    .floating-menu__panel {
        width: min(340px, calc(100vw - 1.5rem));
        max-height: min(85vh, 580px);
        border-radius: 22px;
    }

    .floating-menu[data-edge="right"] .floating-menu__tab,
    .floating-menu[data-edge="left"] .floating-menu__tab {
        min-height: 160px;
        width: 50px;
    }
}

@media (max-width: 640px) {
    .floating-menu[data-edge="left"],
    .floating-menu[data-edge="right"] {
        top: auto;
        bottom: 0.75rem;
        left: 50%;
        right: auto;
        transform: translate(-50%, 0);
        flex-direction: column-reverse;
        gap: 0.75rem;
    }

    .floating-menu__panel {
        max-height: calc(100vh - 6rem);
    }

    .floating-menu[data-edge="left"] .floating-menu__tab,
    .floating-menu[data-edge="right"] .floating-menu__tab {
        flex-direction: row;
        width: auto;
        min-height: auto;
        padding: 0.55rem 1rem;
        border-radius: 9999px;
    }

    .floating-menu[data-edge="left"] .floating-menu__tab-label,
    .floating-menu[data-edge="right"] .floating-menu__tab-label {
        writing-mode: initial;
        transform: none;
        font-size: 0.8rem;
        letter-spacing: 0.05em;
    }
}

.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-color: rgba(0, 0, 0, 0.5);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 50;
}

.modal-content {
    background-color: white;
    padding: 2rem;
    border-radius: 0.75rem;
    box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.25);
    max-width: 90%;
    width: 500px;
}

.collapsed-logo {
    display: none;
}

.sidebar-collapsed .expanded-logo {
    display: none;
}

.sidebar-collapsed .collapsed-logo {
    display: block;
}

.sidebar-collapsed .menu-text {
    display: none;
}

.sidebar-collapsed #user-info {
    display: none;
}

.sidebar-collapsed .menu-toggle .fa-chevron-down {
    display: none;
}

.sidebar-collapsed .menu-toggle,
.sidebar-collapsed .nav-item,
.sidebar-collapsed .has-tooltip {
    justify-content: center;
}

.sidebar-collapsed .has-tooltip {
    position: relative;
}

.sidebar-collapsed .has-tooltip:hover::after {
    content: attr(title);
    position: absolute;
    left: 100%;
    top: 50%;
    transform: translateY(-50%);
    margin-left: 15px;
    padding: 6px 10px;
    background-color: #1f2937;
    color: white;
    border-radius: 6px;
    font-size: 0.875rem;
    font-weight: 500;
    white-space: nowrap;
    z-index: 100;
}