/* design_system/shell.css — App shell: site header, main content, sidebar */

/* Header - fixed top nav like domenicocaiazza.com */
.site-header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    height: var(--app-shell-header-height);
    padding: 0;
    background: rgba(255, 255, 255, 0.92);
    backdrop-filter: blur(14px);
    -webkit-backdrop-filter: blur(14px);
    border-bottom: 1px solid transparent;
    transition: border-color 0.2s, box-shadow 0.2s;
}
.site-header.scrolled {
    border-color: var(--color-border);
    box-shadow: 0 1px 0 rgba(0,0,0,0.04);
}
/* Con sidebar: barra solo sulla colonna destra (come i dashboard moderni), non sopra la sidebar */
.site-header.site-header--with-sidebar {
    border-bottom-color: var(--color-border);
    box-shadow: 0 1px 0 rgba(0, 0, 0, 0.04);
}
@media (max-width: 767px) {
    .site-header.scrolled,
    .site-header.site-header--with-sidebar {
        box-shadow: none;
    }
}
@media (min-width: 768px) {
    .site-header.site-header--with-sidebar {
        left: var(--app-sidebar-width);
        right: 0;
        width: auto;
        transition: left 0.25s cubic-bezier(0.4, 0, 0.2, 1);
    }
}
.site-header .container {
    max-width: 1140px;
    height: 100%;
    margin: 0 auto;
    padding: 0 1.5rem;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1rem;
}
.site-header.site-header--with-sidebar .container {
    padding-left: var(--app-shell-header-pad-x);
    padding-right: 1.25rem;
}
@media (min-width: 768px) {
    .site-header.site-header--with-sidebar .container {
        max-width: none;
        width: 100%;
        margin: 0;
        padding-left: 2rem;
        padding-right: 2rem;
    }
}
.site-header__start {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    min-width: 0;
}
.sidebar-menu-toggle {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 2.75rem;
    height: 2.75rem;
    min-width: 2.75rem;
    min-height: 2.75rem;
    padding: 0;
    margin: 0;
    border: none;
    border-radius: 0.75rem;
    background: transparent;
    color: var(--color-text);
    cursor: pointer;
    -webkit-tap-highlight-color: transparent;
    touch-action: manipulation;
    transition: background 0.15s, color 0.15s;
}
@media (hover: hover) {
    .sidebar-menu-toggle:hover {
        background: var(--color-bg-alt);
        color: var(--color-accent);
    }
}
.sidebar-menu-toggle:active {
    background: var(--color-bg-alt);
    color: var(--color-accent);
}
.sidebar-menu-toggle:focus-visible {
    outline: 2px solid var(--color-accent);
    outline-offset: 2px;
}
@media (min-width: 768px) {
    .sidebar-menu-toggle {
        display: none;
    }
}
.navbar-brand {
    font-weight: 600;
    font-size: var(--text-lg);
    letter-spacing: -0.02em;
    color: var(--color-text);
    text-decoration: none;
    -webkit-tap-highlight-color: transparent;
    touch-action: manipulation;
}
@media (max-width: 767px) {
    .logout-btn {
        -webkit-tap-highlight-color: transparent;
        touch-action: manipulation;
    }
}
.navbar-nav {
    display: flex;
    align-items: center;
    gap: 0.25rem;
    list-style: none;
    margin: 0;
    padding: 0;
}
.nav-link {
    display: block;
    padding: 0.5rem 1rem;
    font-size: var(--text-ui);
    font-weight: 500;
    color: var(--color-text-muted);
    text-decoration: none;
    border-radius: var(--radius-input);
    transition: color 0.2s, background 0.2s;
}
.nav-link:hover {
    color: var(--color-text);
    background: var(--color-bg-alt);
}
.nav-link.active {
    color: var(--color-accent);
    font-weight: 600;
}
.user-area {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}
.user-badge {
    display: inline-flex;
    align-items: center;
    gap: 0.625rem;
    padding: 0.3rem 0.85rem 0.3rem 0.95rem;
    font-size: var(--text-ui);
    font-weight: 500;
    color: var(--color-text);
    background: var(--color-bg-alt);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-input);
    transition: border-color 0.2s, background 0.2s;
}
.user-badge:hover {
    border-color: var(--color-accent-soft);
    background: #fff;
}
.user-area::before {
    content: "";
    align-self: center;
    width: 1px;
    height: 1.5rem;
    background: var(--color-border);
    margin: 0 0.25rem;
}
.logout-form {
    display: inline-flex;
    margin: 0;
}
.logout-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 2.5rem;
    height: 2.5rem;
    padding: 0;
    background: transparent;
    border: 1px solid transparent;
    border-radius: var(--radius-input);
    color: var(--color-text-muted);
    cursor: pointer;
    transition: color 0.2s, background 0.2s, border-color 0.2s;
    line-height: 0;
}
.logout-btn:hover {
    color: var(--red);
    background: rgba(192, 57, 43, 0.08);
    border-color: rgba(192, 57, 43, 0.18);
}
.logout-btn:focus-visible {
    outline: 2px solid var(--color-accent);
    outline-offset: 2px;
}
.avatar {
    width: 30px;
    height: 30px;
    border-radius: 50%;
    background: var(--cta-gradient);
    background-size: 180% 180%;
    background-position: 30% 30%;
    border: 1px solid rgba(255, 255, 255, 0.4);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: var(--text-micro);
    font-weight: 700;
    letter-spacing: 0.02em;
    color: #fff;
    box-shadow: 0 2px 6px rgba(15, 36, 52, 0.25), 0 1px 0 rgba(255, 255, 255, 0.18) inset;
}

/* Main content */
.main-content {
    padding: calc(var(--app-shell-header-height) + 1.75rem) 1.5rem 4rem;
    min-height: 100vh;
}
.main-content--with-sidebar {
    padding-top: calc(var(--app-shell-header-height) + 1.5rem);
    padding-left: var(--app-shell-header-pad-x);
    padding-right: 1.25rem;
}
@media (min-width: 768px) {
    .main-content--with-sidebar {
        margin-left: var(--app-sidebar-width);
        padding-left: 2rem;
        padding-right: 2rem;
        transition: margin-left 0.25s cubic-bezier(0.4, 0, 0.2, 1);
    }
}
.main-inner {
    max-width: 720px;
    margin: 0 auto;
}
.main-inner--wide { max-width: 1140px; }

/* App sidebar — colonna sinistra a tutta altezza (allineata alla shell, non sotto la navbar) */
.app-sidebar {
    position: fixed;
    top: 0;
    left: 0;
    z-index: 50;
    width: var(--app-sidebar-width);
    height: 100vh;
    height: 100dvh;
    display: flex;
    flex-direction: column;
    padding: 0 var(--app-sidebar-pad-x) max(1.5rem, env(safe-area-inset-bottom, 0px)) max(var(--app-sidebar-pad-x), env(safe-area-inset-left, 0px));
    background: var(--sidebar-gradient);
    border-right: 1px solid rgba(255, 255, 255, 0.06);
    box-shadow: 4px 0 24px rgba(15, 36, 52, 0.12);
    transform: translateX(-100%);
    transition: transform 0.28s cubic-bezier(0.4, 0, 0.2, 1);
    overflow: hidden;
}
@media (min-width: 768px) {
    .app-sidebar {
        transform: translateX(0);
        transition: width 0.25s cubic-bezier(0.4, 0, 0.2, 1);
    }
}
@media (max-width: 767px) {
    .app-sidebar.app-sidebar--open {
        z-index: 1050;
    }
}
.app-sidebar.app-sidebar--open {
    transform: translateX(0);
}
.app-sidebar__brand {
    flex-shrink: 0;
    height: var(--app-shell-header-height);
    padding: 0 var(--app-sidebar-brand-inline);
    margin: 0 calc(var(--app-sidebar-brand-inline) * -1) 0.75rem;
    padding-left: calc(var(--app-sidebar-brand-inline) * 2);
    padding-right: calc(var(--app-sidebar-brand-inline) * 2);
    border-bottom: 1px solid rgba(255, 255, 255, 0.08);
    display: flex;
    align-items: center;
}
@supports (padding-top: env(safe-area-inset-top)) {
    .app-sidebar__brand {
        height: calc(var(--app-shell-header-height) + env(safe-area-inset-top, 0px));
        padding-top: env(safe-area-inset-top, 0px);
    }
}
.app-sidebar__brand-link {
    display: flex;
    flex-direction: row;
    align-items: center;
    gap: 0.75rem;
    width: 100%;
    font-size: var(--text-body);
    font-weight: 600;
    letter-spacing: -0.02em;
    color: #fff;
    text-decoration: none;
    line-height: 1.25;
    transition: color 0.2s, opacity 0.2s;
}
.app-sidebar__brand-lockup {
    display: block;
    height: 2.5rem;
    width: auto;
    max-width: 100%;
    object-fit: contain;
    object-position: left center;
    transition: transform 0.2s;
}
.app-sidebar__brand-link--with-lockup .app-sidebar__brand-logo,
.app-sidebar__brand-link--with-lockup .app-sidebar__brand-text {
    display: none;
}
.app-sidebar__brand-logo {
    flex-shrink: 0;
    width: 2.25rem;
    height: 2.25rem;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: transform 0.2s;
}
.app-sidebar__brand-logo-img {
    display: block;
    width: 100%;
    height: 100%;
    object-fit: contain;
}
.app-sidebar__brand-text {
    display: flex;
    flex-direction: column;
    gap: 0.2rem;
    min-width: 0;
}
.app-sidebar__brand-title {
    display: block;
    font-size: var(--text-lg);
    font-weight: 600;
    letter-spacing: -0.02em;
}
.app-sidebar__brand-subtitle {
    display: block;
    font-size: var(--text-sm);
    font-weight: 500;
    letter-spacing: 0.06em;
    color: rgba(255, 255, 255, 0.62);
    text-transform: uppercase;
}
.app-sidebar__brand-link:hover {
    color: rgba(255, 255, 255, 0.92);
}
.app-sidebar__brand-link:hover .app-sidebar__brand-logo,
.app-sidebar__brand-link:hover .app-sidebar__brand-lockup {
    transform: translateY(-1px);
}
.app-sidebar__brand-link:hover .app-sidebar__brand-subtitle {
    color: rgba(255, 255, 255, 0.78);
}
.app-sidebar__brand-link:focus-visible {
    outline: 2px solid rgba(255, 255, 255, 0.45);
    outline-offset: 3px;
    border-radius: 0.35rem;
}
.app-sidebar__nav {
    display: flex;
    flex: 1;
    flex-direction: column;
    gap: 0.15rem;
    min-height: 0;
    padding: 0.4rem var(--app-sidebar-brand-inline) 0;
    overflow-y: auto;
    -webkit-overflow-scrolling: touch;
}
.app-sidebar__nav-title {
    display: block;
    padding: 0 0.8rem;
    margin-bottom: 0.35rem;
    font-size: var(--text-micro);
    font-weight: 700;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    color: rgba(255, 255, 255, 0.42);
}
.app-sidebar__nav-title + .app-sidebar__section {
    margin-top: 0.3rem;
}
.app-sidebar__divider {
    height: 1px;
    margin: 0.75rem 0.8rem 0.5rem;
    background: rgba(255, 255, 255, 0.12);
}
.app-sidebar__section {
    margin-top: 0.75rem;
}
.app-sidebar__section:first-child {
    margin-top: 0.3rem;
}
.app-sidebar__section-title {
    display: block;
    padding: 0 0.8rem;
    margin: 0.3rem 0 0.3rem;
    font-size: var(--text-micro);
    font-weight: 700;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    color: rgba(255, 255, 255, 0.42);
}
.app-sidebar__link {
    position: relative;
    display: flex;
    align-items: center;
    gap: 0.65rem;
    padding: 0.45rem 0.85rem;
    border-radius: var(--radius-input);
    font-size: var(--text-ui);
    font-weight: 500;
    line-height: 1.3;
    color: rgba(255, 255, 255, 0.7);
    text-decoration: none;
    transition: background 0.2s, color 0.2s, box-shadow 0.2s;
}
.app-sidebar__link:hover {
    color: #fff;
    background: rgba(255, 255, 255, 0.06);
}
.app-sidebar__link--active {
    color: #fff;
    font-weight: 600;
    background: rgba(255, 255, 255, 0.12);
    box-shadow: inset 0 0 0 1px rgba(255, 255, 255, 0.08);
}
.app-sidebar__link--active::before {
    content: "";
    position: absolute;
    left: 0;
    top: 50%;
    transform: translateY(-50%);
    width: 3px;
    height: 1.15rem;
    border-radius: 0 3px 3px 0;
    background: #fff;
    box-shadow: 0 0 10px rgba(255, 255, 255, 0.35);
}
.app-sidebar__link--active .app-sidebar__link-icon {
    color: #fff;
}
.app-sidebar__link-icon {
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    width: 1.25rem;
    height: 1.25rem;
    color: rgba(255, 255, 255, 0.55);
    transition: color 0.2s;
}
.app-sidebar__link-icon svg {
    width: 1.125rem;
    height: 1.125rem;
}
.app-sidebar__link:hover .app-sidebar__link-icon {
    color: rgba(255, 255, 255, 0.9);
}
.app-sidebar__link-text {
    flex: 1;
    min-width: 0;
}

.app-sidebar__footer {
    flex-shrink: 0;
    margin-top: auto;
    padding: 0.7rem var(--app-sidebar-brand-inline) 0;
}
.app-sidebar__collapse-toggle {
    display: none;
    align-items: center;
    gap: 0.55rem;
    width: 100%;
    padding: 0.45rem 0.8rem;
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: var(--radius-input);
    font-family: inherit;
    font-size: var(--text-sm);
    font-weight: 500;
    color: rgba(255, 255, 255, 0.72);
    background: rgba(255, 255, 255, 0.04);
    cursor: pointer;
    transition: background 0.2s, color 0.2s, border-color 0.2s;
}
.app-sidebar__collapse-toggle:hover {
    color: #fff;
    background: rgba(255, 255, 255, 0.08);
    border-color: rgba(255, 255, 255, 0.16);
}
.app-sidebar__collapse-toggle:focus-visible {
    outline: 2px solid rgba(255, 255, 255, 0.45);
    outline-offset: 2px;
}
.app-sidebar__collapse-toggle-icon {
    display: flex;
    flex-shrink: 0;
    align-items: center;
    justify-content: center;
    transition: transform 0.25s cubic-bezier(0.4, 0, 0.2, 1);
}
.app-sidebar__collapse-toggle-icon svg {
    width: 1.0625rem;
    height: 1.0625rem;
}
.app-sidebar__collapse-toggle-text {
    flex: 1;
    min-width: 0;
    text-align: left;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}
@media (min-width: 768px) {
    .app-sidebar__collapse-toggle {
        display: inline-flex;
    }
}

@media (min-width: 768px) {
    body.sidebar-collapsed {
        --app-sidebar-width: var(--app-sidebar-width-collapsed);
    }
    /* Collapse to an icon rail: drop nested horizontal padding so icons share one center axis */
    body.sidebar-collapsed .app-sidebar {
        padding-left: 0.5rem;
        padding-right: 0.5rem;
    }
    body.sidebar-collapsed .app-sidebar__brand {
        margin-left: 0;
        margin-right: 0;
        padding-left: 0;
        padding-right: 0;
    }
    body.sidebar-collapsed .app-sidebar__brand-link {
        justify-content: center;
    }
    body.sidebar-collapsed .app-sidebar__brand-lockup {
        display: none;
    }
    body.sidebar-collapsed .app-sidebar__brand-link--with-lockup .app-sidebar__brand-logo {
        display: flex;
    }
    body.sidebar-collapsed .app-sidebar__nav {
        padding-left: 0;
        padding-right: 0;
        align-items: stretch;
    }
    body.sidebar-collapsed .app-sidebar__footer {
        padding-left: 0;
        padding-right: 0;
    }
    body.sidebar-collapsed .app-sidebar__brand-text,
    body.sidebar-collapsed .app-sidebar__nav-title,
    body.sidebar-collapsed .app-sidebar__section-title,
    body.sidebar-collapsed .app-sidebar__link-text,
    body.sidebar-collapsed .app-sidebar__collapse-toggle-text {
        position: absolute;
        width: 1px;
        height: 1px;
        padding: 0;
        margin: -1px;
        overflow: hidden;
        clip: rect(0, 0, 0, 0);
        white-space: nowrap;
        border: 0;
    }
    body.sidebar-collapsed .app-sidebar__nav-title,
    body.sidebar-collapsed .app-sidebar__section-title {
        display: none;
    }
    body.sidebar-collapsed .app-sidebar__link {
        justify-content: center;
        gap: 0;
        padding-left: 0;
        padding-right: 0;
    }
    body.sidebar-collapsed .app-sidebar__link--active::before {
        height: 1rem;
    }
    body.sidebar-collapsed .app-sidebar__divider {
        margin-left: 0.35rem;
        margin-right: 0.35rem;
    }
    body.sidebar-collapsed .app-sidebar__collapse-toggle {
        justify-content: center;
        gap: 0;
        padding-left: 0;
        padding-right: 0;
    }
    body.sidebar-collapsed .app-sidebar__collapse-toggle-icon {
        transform: rotate(180deg);
    }
}

@media (max-width: 767px) {
    body.sidebar-open {
        overflow: hidden;
        touch-action: none;
    }
}



/* Sidebar brand logo badge */
.app-sidebar__brand-logo-badge {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 2.25rem;
    height: 2.25rem;
    border-radius: 0.625rem;
    background: var(--cta-gradient);
    color: #fff;
    font-size: var(--text-micro);
    font-weight: 700;
    letter-spacing: 0.02em;
    box-shadow: 0 2px 6px rgba(15, 36, 52, 0.25);
}

/* Sidebar nav groups (details/summary) */
.app-sidebar__details {
    margin: 0;
    border: none;
}
.app-sidebar__summary {
    list-style: none;
    cursor: pointer;
    position: relative;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 0.45rem;
    padding: 0.45rem 0.85rem;
    border-radius: var(--radius-input);
    font-size: var(--text-ui);
    font-weight: 500;
    line-height: 1.3;
    color: rgba(255, 255, 255, 0.7);
    transition: background 0.2s, color 0.2s;
    -webkit-user-select: none;
    user-select: none;
}
.app-sidebar__summary::-webkit-details-marker {
    display: none;
}
.app-sidebar__summary-main {
    display: flex;
    align-items: center;
    gap: 0.65rem;
    min-width: 0;
}
.app-sidebar__summary:hover {
    color: #fff;
    background: rgba(255, 255, 255, 0.06);
}
.app-sidebar__summary:focus-visible {
    outline: 2px solid rgba(255, 255, 255, 0.45);
    outline-offset: 2px;
}
.app-sidebar__summary--nested {
    padding-left: 0.9rem;
    font-size: var(--text-sm);
}
.app-sidebar__chevron {
    flex-shrink: 0;
    width: 0.95rem;
    height: 0.95rem;
    opacity: 0.65;
    transition: transform 0.2s ease;
}
.app-sidebar__details[open] > .app-sidebar__summary > .app-sidebar__chevron {
    transform: rotate(180deg);
}
.app-sidebar__submenu {
    display: flex;
    flex-direction: column;
    gap: 0.12rem;
    padding: 0.15rem 0 0.3rem 0.6rem;
}
.app-sidebar__submenu .app-sidebar__link {
    font-size: var(--text-sm);
    padding: 0.4rem 0.8rem;
}
@media (min-width: 768px) {
    body.sidebar-collapsed .app-sidebar__chevron,
    body.sidebar-collapsed .app-sidebar__submenu {
        display: none;
    }
    body.sidebar-collapsed .app-sidebar__summary {
        justify-content: center;
        gap: 0;
        padding-left: 0;
        padding-right: 0;
    }
    body.sidebar-collapsed .app-sidebar__summary-main {
        display: flex;
        justify-content: center;
        gap: 0;
        flex: 1;
        min-width: 0;
    }
    body.sidebar-collapsed .app-sidebar__summary--nested {
        padding-left: 0;
    }
}