/* ════════════════════════════════════════════════
   PORTAL NAV — matches website .nav design
   ════════════════════════════════════════════════ */
.navbar {
    position: sticky; top: 0; z-index: 2500;
    display: flex; align-items: center; gap: 8px;
    height: var(--nav-h);
    width: 100%;
    padding: 0 24px;
    background: rgba(250, 251, 250, 0.85);
    -webkit-backdrop-filter: saturate(180%) blur(14px);
    backdrop-filter: saturate(180%) blur(14px);
    border-bottom: 1px solid var(--line);
    box-shadow: none;
}
:root[data-theme="dark"] .navbar,
:root.theme-dark .navbar { background: rgba(10, 19, 16, 0.78); }

.nav-brand {
    display: flex; align-items: center; gap: 10px;
    color: var(--primary);
    text-decoration: none;
    margin-right: 12px;
}
.nav-brand:hover { text-decoration: none; }
.nav-brand .nav-brand-link {
    display: inline-flex; align-items: center; gap: 10px;
    color: var(--primary);
    text-decoration: none;
}
.nav-brand .nav-brand-link:hover { text-decoration: none; }
.nav-brand .logo { color: var(--primary); width: 40px; height: 40px; display: block; }
.nav-brand .nav-name {
    font-family: var(--font-h); font-weight: 600;
    font-size: 22px; letter-spacing: -0.02em;
    color: var(--ink);
}

.nav-links, .nav-menu {
    margin-left: auto;
    display: flex; align-items: center; gap: 4px;
    flex-wrap: nowrap;
}

.nav-link {
    display: inline-flex; align-items: center; gap: 8px;
    padding: 11px 16px;
    border-radius: var(--radius-sm);
    font-family: var(--font-b); font-size: 15px; font-weight: 500;
    color: var(--ink);
    text-decoration: none;
    white-space: nowrap;
    transition: background 120ms ease, color 120ms ease, border-color 120ms ease;
    background: transparent;
    border: 1px solid transparent;
}
.nav-link:hover {
    background: var(--bg-soft);
    color: var(--ink);
    border-color: var(--line);
    text-decoration: none;
}
.nav-link.active {
    color: var(--ink);
    background: var(--bg-soft);
    border-color: var(--ink-30);
    font-weight: 600;
}
.nav-link .link-icon {
    width: 20px;
    height: 20px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    flex: 0 0 20px;
    opacity: 0.9;
}
.nav-link .link-icon svg,
.nav-action-btn svg {
    width: 20px;
    height: 20px;
    display: block;
    fill: none;
    stroke: currentColor;
    stroke-width: 1.9;
    stroke-linecap: round;
    stroke-linejoin: round;
}

/* ── Dark-mode hover: primary-tint glow ── */
:root[data-theme="dark"] .nav-link:hover,
:root.theme-dark .nav-link:hover,
:root[data-theme="dark"] .nav-action-btn:hover,
:root.theme-dark .nav-action-btn:hover {
    background: rgba(77, 207, 184, 0.14);
    color: var(--primary);
    border-color: var(--primary);
}
:root[data-theme="dark"] .nav-link.active,
:root.theme-dark .nav-link.active {
    background: rgba(77, 207, 184, 0.18);
    color: var(--primary);
    border-color: var(--primary);
}

.nav-user {
    font-family: var(--font-m); font-size: 11px;
    color: var(--ink-50); letter-spacing: 0.04em;
    padding: 6px 10px;
    border: 1px solid var(--line);
    border-radius: var(--radius-sm);
    background: transparent;
    margin-left: 6px;
    height: 32px;
    display: inline-flex; align-items: center;
}

/* ── Action buttons (bell, chat, theme) ── */
.nav-actions {
    display: inline-flex; align-items: center; gap: 4px;
    margin-left: auto;
}
.nav-links + .nav-actions,
.nav-menu + .nav-actions { margin-left: 6px; }
.nav-action-btn {
    position: relative;
    display: inline-flex; align-items: center; justify-content: center;
    width: 36px; height: 36px;
    border: 1px solid transparent;
    border-radius: var(--radius-sm);
    background: transparent;
    color: var(--ink-70);
    font-size: 17px; cursor: pointer;
    transition: background 120ms ease, color 120ms ease, border-color 120ms ease;
    padding: 0;
    vertical-align: middle;
}
.nav-action-btn:hover { background: var(--bg-soft); color: var(--ink); border-color: var(--ink-30); }
.nav-action-btn .icon-chat {
    transform: translateY(-0.5px);
}

/* Theme-toggle moon/sun swap. Matches the website's pattern: */
/* light mode shows the moon (offer to go dark); dark mode shows the sun. */
.nav-action-theme .icon-sun  { display: none; }
.nav-action-theme .icon-moon { display: block; }
:root[data-theme="dark"] .nav-action-theme .icon-sun,
:root.theme-dark .nav-action-theme .icon-sun  { display: block; }
:root[data-theme="dark"] .nav-action-theme .icon-moon,
:root.theme-dark .nav-action-theme .icon-moon { display: none; }
.nav-action-count {
    position: absolute; top: -4px; right: -4px;
    min-width: 18px; height: 18px; padding: 0 5px;
    border-radius: 999px;
    background: var(--warn); color: #fff;
    font-family: var(--font-m); font-size: 10px; font-weight: 600;
    line-height: 18px; text-align: center;
}

/* ── Toggle (mobile) ── */
.nav-toggle {
    display: none;
    align-items: center; justify-content: center;
    flex-direction: column;
    gap: 4px;
    width: 36px; height: 36px;
    background: transparent;
    border: 1px solid var(--line);
    border-radius: var(--radius-sm);
    color: var(--ink);
    cursor: pointer; padding: 0;
    font-size: 18px;
    line-height: 0;
}
.nav-toggle span {
    display: block;
    width: 16px;
    height: 2px;
    border-radius: 999px;
    background: currentColor;
}
.nav-toggle:hover { background: var(--bg-soft); border-color: var(--ink-30); }

/* ── Popups (bell list, coming-soon) ── */
.nav-action-popup {
    position: fixed;
    display: none;
    width: min(320px, calc(100vw - 24px));
    max-height: 360px;
    overflow-y: auto;
    background: var(--surface);
    border: 1px solid var(--line);
    border-radius: var(--radius);
    box-shadow: var(--shadow-lg);
    padding: 6px;
    z-index: 2100;
}
.nav-action-popup.show { display: block; }
.nav-popup-item {
    display: grid;
    gap: 2px;
    padding: 10px 12px;
    border-radius: var(--radius-sm);
    color: var(--ink);
    text-decoration: none;
}
.nav-popup-item:hover { background: var(--bg-soft); text-decoration: none; }
.nav-popup-item--action {
    grid-template-columns: minmax(0, 1fr) auto;
    align-items: center;
    column-gap: 8px;
}
.nav-popup-item--action > a {
    display: grid;
    min-width: 0;
    gap: 2px;
    color: inherit;
    text-decoration: none;
}
.nav-popup-item--action > a:hover {
    color: inherit;
    text-decoration: none;
}
.nav-popup-item strong {
    font-family: var(--font-h); font-size: 13px; font-weight: 600;
    color: var(--ink);
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}
.nav-popup-item span,
.nav-popup-empty {
    font-family: var(--font-b); font-size: 12px;
    color: var(--ink-70);
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}
.nav-popup-dismiss {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-height: 30px;
    padding: 0 10px;
    border-radius: var(--radius-sm);
    border: 1px solid var(--line);
    background: var(--bg-soft);
    color: var(--ink);
    font-family: var(--font-b);
    font-size: 12px;
    font-weight: 600;
    cursor: pointer;
    transition: background 120ms ease, border-color 120ms ease, color 120ms ease;
}
.nav-popup-dismiss:hover {
    background: rgba(77, 207, 184, 0.16);
    border-color: var(--primary);
    color: var(--ink);
}
.nav-popup-empty {
    padding: 16px 12px; text-align: center;
}

/* ── Backdrop (mobile drawer) ── */
.nav-backdrop {
    display: none;
    position: fixed;
    inset: var(--nav-h) 0 0 0;
    background: rgba(12, 22, 20, 0.4);
    border: 0; cursor: pointer;
    z-index: 99;
    opacity: 0; pointer-events: none;
    transition: opacity 200ms ease;
}

/* ── Collapsed (mobile) layout ── */
body.nav-collapsed .nav-toggle { display: inline-flex; }
body.nav-collapsed .nav-menu {
    position: fixed;
    top: var(--nav-h); right: 0; bottom: 0; left: auto;
    width: min(360px, 100vw);
    max-width: 100vw;
    height: calc(100vh - var(--nav-h));
    height: calc(100dvh - var(--nav-h));
    background: var(--surface);
    border-left: 1px solid var(--line);
    flex-direction: column; align-items: stretch;
    gap: 4px;
    padding: 16px;
    transform: translateX(100%);
    transition: transform 240ms ease;
    z-index: 2600;
    overflow-y: auto;
    margin-left: 0;
    margin-right: 0;
    box-shadow: var(--shadow-lg);
    will-change: transform;
}
body.nav-collapsed .nav-menu .nav-link,
body.nav-collapsed .nav-menu .nav-user {
    width: 100%;
    justify-content: flex-start;
}
body.nav-collapsed .nav-menu .nav-user { margin-top: auto; }
body.nav-menu-open .nav-menu { transform: translateX(0); }
body.nav-collapsed.nav-menu-open .nav-backdrop {
    display: block; opacity: 1; pointer-events: auto;
    z-index: 2000;
}

body.nav-collapsed.nav-menu-open .navbar {
    z-index: 2550;
}

@media (max-width: 720px) {
    .navbar { padding: 0 16px; }
    .nav-actions { gap: 2px; }

    body.nav-collapsed .nav-menu {
        width: min(360px, 100vw);
        right: 0;
    }
}