/* Navigation bar shared by all pages (templates/_nav.html). Own tn- prefix; colours come from the tokens in theme.css. */
.topnav {
    --tn-bg: rgba(8, 14, 20, 0.88); --tn-line: var(--glass-border); --tn-text: var(--text-main); --tn-muted: var(--text-muted);
    --tn-green: var(--accent-green); --tn-blue: var(--accent-blue); --tn-red: var(--danger); --tn-yellow: var(--warning);
    position: sticky; top: env(safe-area-inset-top, 0px); z-index: 150000;
    display: flex; align-items: center; gap: 6px; flex-wrap: nowrap;
    margin: 0 auto var(--gap, 20px) auto; max-width: 1200px; box-sizing: border-box;
    padding: 8px 12px; border: 1px solid var(--tn-line); border-radius: 14px;
    background: var(--tn-bg); backdrop-filter: blur(16px); -webkit-backdrop-filter: blur(16px);
    box-shadow: 0 10px 34px rgb(var(--shade) / calc(0.5 * var(--shade-k)));
    font-family: var(--font-ui); color: var(--tn-text);
}
.topnav a { color: inherit; text-decoration: none; }
.tn-brand { display: flex; align-items: center; gap: 8px; padding: 6px 10px 6px 4px; margin-right: 6px; flex: 0 0 auto; }
.tn-logo { font-size: 20px; filter: drop-shadow(0 0 6px rgba(0, 230, 118, 0.6)); }
.tn-brand-text { font: bold 14px var(--font-mono); letter-spacing: 2px; text-transform: uppercase; color: var(--tn-green); white-space: nowrap; }
.tn-menu { display: flex; align-items: center; gap: 4px; flex: 1 1 auto; min-width: 0; }
.tn-right { display: flex; align-items: center; gap: 8px; flex: 0 0 auto; margin-left: auto; }

/* top-level entries and group buttons */
.tn-top, .tn-group > summary {
    display: flex; align-items: center; gap: 6px; padding: 8px 12px; border-radius: 9px; cursor: pointer;
    font: bold 12px var(--font-mono); letter-spacing: 1.2px; text-transform: uppercase; color: var(--tn-muted);
    list-style: none; user-select: none; white-space: nowrap; transition: background 0.15s, color 0.15s;
}
.tn-group > summary::-webkit-details-marker { display: none; }
.tn-group > summary::after { content: '▾'; font-size: 10px; opacity: 0.7; transition: transform 0.15s; }
.tn-group[open] > summary::after { transform: rotate(180deg); }
.tn-top:hover, .tn-group > summary:hover, .tn-group[open] > summary { background: rgb(var(--hi) / 0.06); color: var(--text-strong); }
.tn-top.active, .tn-group.active > summary { color: var(--tn-green); box-shadow: inset 0 -2px 0 var(--tn-green); }
.tn-group { position: relative; }
.tn-drop {
    position: absolute; top: calc(100% + 8px); left: 0; min-width: 250px; padding: 6px;
    background: var(--surface-raised); border: 1px solid var(--tn-line); border-radius: 12px;
    box-shadow: 0 16px 40px rgb(var(--shade) / calc(0.6 * var(--shade-k))); display: flex; flex-direction: column; gap: 2px;
}
.tn-drop-right { left: auto; right: 0; }
.tn-item {
    display: flex; flex-direction: column; gap: 2px; padding: 9px 12px; border-radius: 8px; border: 0; background: none;
    text-align: left; cursor: pointer; color: var(--tn-text); font: inherit; width: 100%; box-sizing: border-box;
}
.tn-item span { font-size: 14px; font-weight: 600; }
.tn-item small { font-size: 11px; color: var(--tn-muted); }
.tn-item:hover { background: rgba(41, 182, 246, 0.12); }
.tn-item.active { background: rgba(0, 230, 118, 0.1); }
.tn-item.active span { color: var(--tn-green); }
.tn-logout { margin: 4px 0 0 0; border-top: 1px solid var(--tn-line); padding-top: 4px; }
.tn-logout .tn-item span { color: #ff8a80; }

/* right side: health, power, user */
.tn-health, .tn-power {
    display: flex; align-items: center; gap: 7px; padding: 6px 11px; border-radius: 20px; border: 1px solid var(--tn-line);
    font: 12px var(--font-mono); white-space: nowrap; background: rgb(var(--shade) / calc(0.3 * var(--shade-k)));
}
.tn-health:hover { border-color: var(--tn-blue); }
.tn-dot { width: 9px; height: 9px; border-radius: 50%; background: var(--tn-muted); flex: 0 0 auto; }
.tn-health.ok .tn-dot { background: var(--tn-green); box-shadow: 0 0 8px var(--tn-green); }
.tn-health.fault { border-color: rgba(255, 23, 68, 0.6); color: #ff8a80; }
.tn-health.fault .tn-dot { background: var(--tn-red); box-shadow: 0 0 10px var(--tn-red); animation: tn-pulse 1.4s infinite; }
.tn-health.recovering .tn-dot { background: var(--tn-yellow); box-shadow: 0 0 8px var(--tn-yellow); }
@keyframes tn-pulse { 50% { opacity: 0.35; } }
.tn-power b { font-size: 13px; color: var(--text-strong); }
.tn-bolt { color: var(--tn-yellow); text-shadow: 0 0 8px rgba(255, 234, 0, 0.6); }
.tn-power.pumping { border-color: rgba(41, 182, 246, 0.6); }
.tn-power.pumping .tn-bolt { color: var(--tn-blue); text-shadow: 0 0 8px rgba(41, 182, 246, 0.8); }
.tn-user > summary { text-transform: none; letter-spacing: 0; font-family: var(--font-ui); padding: 5px 10px 5px 5px; }
.tn-avatar {
    width: 26px; height: 26px; border-radius: 50%; display: inline-flex; align-items: center; justify-content: center;
    background: linear-gradient(135deg, var(--tn-blue), var(--tn-green)); color: var(--on-accent); font: bold 13px var(--font-mono);
}
.tn-username { font-size: 13px; color: var(--tn-text); max-width: 120px; overflow: hidden; text-overflow: ellipsis; }

.tn-burger {
    display: none; margin-left: auto; padding: 6px 12px; font-size: 20px; line-height: 1; cursor: pointer;
    background: rgb(var(--hi) / 0.05); color: var(--tn-text); border: 1px solid var(--tn-line); border-radius: 9px;
}

/* phones and narrow tablets: everything folds into the ☰ menu */
@media (max-width: 900px) {
    .topnav { flex-wrap: wrap; border-radius: 12px; }
    .tn-burger { display: block; order: 2; }
    .tn-right { order: 1; margin-left: auto; }
    .tn-menu { order: 3; display: none; flex-basis: 100%; flex-direction: column; align-items: stretch; padding-top: 8px; margin-top: 6px; border-top: 1px solid var(--tn-line); }
    .topnav.open .tn-menu { display: flex; max-height: calc(100vh - 90px); overflow-y: auto; -webkit-overflow-scrolling: touch; }
    .tn-top, .tn-group > summary { padding: 12px; }
    .tn-item { padding: 11px 12px; }
    .topnav .tn-plant { padding: 10px; }
    .tn-drop { position: static; min-width: 0; box-shadow: none; border: 0; background: rgb(var(--hi) / 0.03); margin: 2px 0 6px 0; }
    .tn-top.active, .tn-group.active > summary { box-shadow: inset 3px 0 0 var(--tn-green); }
    .tn-username, .tn-brand-text { display: none; }
    .tn-user .tn-drop { position: absolute; min-width: 220px; background: var(--surface-raised); border: 1px solid var(--tn-line); }
}
@media (max-width: 360px) {
    .tn-power { display: none !important; }
}
.tn-power[hidden] { display: none; }
.tn-msg {
    display: flex; align-items: center; gap: 6px; padding: 6px 11px; border-radius: 20px; border: 1px solid var(--tn-blue);
    font: 12px var(--font-mono); white-space: nowrap; background: rgba(41, 182, 246, 0.12); color: var(--tn-text); text-decoration: none;
}
.tn-msg b { font-size: 13px; color: var(--text-strong); }
.tn-msg:hover { background: rgba(41, 182, 246, 0.25); }
.tn-msg[hidden] { display: none; }
.tn-new { font: bold 9.5px var(--font-mono); font-style: normal; text-transform: uppercase; letter-spacing: 0.5px; color: var(--on-accent);
          background: var(--tn-green); border-radius: 6px; padding: 1px 5px; margin-left: 6px; vertical-align: 1px; }
.tn-new-dot { display: inline-block; width: 7px; height: 7px; border-radius: 50%; background: var(--tn-green); margin-left: 6px; vertical-align: 2px;
              box-shadow: 0 0 6px var(--tn-green); }
.tn-new[hidden], .tn-new-dot[hidden] { display: none; }
.tn-plants { display: grid; grid-template-columns: 1fr 1fr; gap: 2px; padding: 2px 0; }
.tn-plant { display: flex; align-items: center; gap: 7px; padding: 7px 10px; border-radius: 8px; font-size: 13px; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.tn-plant:hover { background: rgba(0, 230, 118, 0.1); }
.tn-plant.active { color: var(--tn-green); background: rgba(0, 230, 118, 0.1); }
.tn-sep { height: 1px; background: var(--tn-line); margin: 4px 6px; }
.tn-group:first-of-type .tn-drop { min-width: 300px; }

/* ---------- phones: app-style tab bar at the bottom ---------- */
.tabbar { display: none; }
@media (max-width: 700px) {
    .tabbar {
        display: grid; grid-template-columns: repeat(5, 1fr); position: fixed; z-index: 150000; left: 0; right: 0; bottom: 0;
        padding: 6px 6px max(8px, env(safe-area-inset-bottom)); background: var(--surface-raised);
        backdrop-filter: blur(16px); -webkit-backdrop-filter: blur(16px); border-top: 1px solid var(--tn-line, rgb(var(--hi) / 0.08));
        box-shadow: 0 -8px 26px rgb(var(--shade) / calc(0.55 * var(--shade-k)));
    }
    .tab {
        display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 3px; min-height: 58px;
        color: #8b9bb4; text-decoration: none; background: none; border: 0; border-radius: 12px; cursor: pointer;
        font: 600 12.5px system-ui, 'Segoe UI', Roboto, sans-serif; letter-spacing: 0.2px; -webkit-tap-highlight-color: transparent;
    }
    .tab svg { width: 27px; height: 27px; fill: none; stroke: currentColor; stroke-width: 1.9; stroke-linecap: round; stroke-linejoin: round; }
    .tab.active, .tab.open { color: #00e676; background: rgba(0, 230, 118, 0.09); }
    .tab.active svg, .tab.open svg { filter: drop-shadow(0 0 6px rgba(0, 230, 118, 0.6)); }
    .tab:active { transform: scale(0.95); }
    .tn-burger { display: none !important; }
    .tn-brand { margin-right: 0; padding-right: 4px; }
}
:root[data-theme="light"] .topnav { --tn-bg: rgba(255, 255, 255, 0.88); }

/* Design and language switches in the user menu (and on the login page) */
.prefs { display: grid; grid-template-columns: auto 1fr; gap: 6px 10px; align-items: center; padding: 8px 12px; border-top: 1px solid var(--glass-border); margin-top: 4px; }
.prefs > span { font-size: 11px; color: var(--text-muted); text-transform: uppercase; letter-spacing: 1px; font-family: var(--font-mono); }
.prefs .seg { justify-self: start; }
.guest-prefs .prefs { border-top: 0; padding: 4px 0 0 0; margin: 0; }

/* ---------- news ticker at the bottom (static/js/ticker.js) ---------- */
.ticker {
    position: fixed; left: 0; right: 0; bottom: 0; z-index: 140000; display: flex; align-items: center; height: 34px;
    background: var(--surface-raised); border-top: 1px solid var(--glass-border);
    backdrop-filter: blur(14px); -webkit-backdrop-filter: blur(14px);
    box-shadow: 0 -6px 20px rgb(var(--shade) / calc(0.45 * var(--shade-k)));
    font: 600 13px var(--font-ui); color: var(--text-main);
}
.ticker[hidden], .ticker-open[hidden] { display: none; }
.ticker-label {
    flex: 0 0 auto; align-self: stretch; display: flex; align-items: center; padding: 0 12px;
    background: var(--danger); color: #fff; font: 800 11px var(--font-mono); letter-spacing: 2px;
}
.ticker-label::before { content: ''; width: 7px; height: 7px; border-radius: 50%; background: #fff; margin-right: 7px; animation: ticker-blink 1.4s infinite; }
.ticker-window { flex: 1 1 auto; overflow: hidden; height: 100%; display: flex; align-items: center;
    mask-image: linear-gradient(90deg, transparent, #000 24px, #000 calc(100% - 24px), transparent);
    -webkit-mask-image: linear-gradient(90deg, transparent, #000 24px, #000 calc(100% - 24px), transparent); }
.ticker-track { display: inline-flex; white-space: nowrap; will-change: transform; animation: ticker-scroll 60s linear infinite; }
.ticker:hover .ticker-track { animation-play-state: paused; }
.ticker-track.still { animation: none; padding-left: 14px; }
.ticker-item { display: inline-flex; align-items: center; gap: 7px; padding: 0 22px; position: relative; }
.ticker-item::after { content: '•'; position: absolute; right: -3px; color: var(--text-muted); }
.ticker-icon { font-size: 15px; }
.ticker-problem { color: var(--danger); }
.ticker-watering { color: var(--accent-blue); }
.ticker-close { flex: 0 0 auto; background: none; border: 0; color: var(--text-muted); font-size: 20px; padding: 0 12px; cursor: pointer; height: 100%; }
.ticker-close:hover { color: var(--text-strong); }
.ticker-open {
    position: fixed; right: 14px; bottom: 14px; z-index: 140000; width: 38px; height: 38px; border-radius: 50%;
    border: 1px solid var(--glass-border); background: var(--surface-raised); font-size: 18px; cursor: pointer;
    box-shadow: 0 4px 14px rgb(var(--shade) / calc(0.4 * var(--shade-k)));
}
body.has-ticker { padding-bottom: 40px; }
@keyframes ticker-scroll { from { transform: translateX(0); } to { transform: translateX(var(--ticker-shift, -50%)); } }
@keyframes ticker-blink { 50% { opacity: 0.25; } }
@media (max-width: 700px) {
    /* above the tab bar */
    .ticker { bottom: calc(72px + env(safe-area-inset-bottom)); height: 30px; font-size: 12px; }
    .ticker-open { bottom: calc(84px + env(safe-area-inset-bottom)); }
    html body.has-ticker { padding-bottom: calc(108px + env(safe-area-inset-bottom)); }
}
@media print { .ticker, .ticker-open { display: none !important; } }

/* "2FA or passkey required" (admin switch): under the menu bar on every page until one is set up */
.mfa-banner {
    max-width: 1200px; box-sizing: border-box; margin: calc(-1 * var(--gap, 20px) + 8px) auto var(--gap, 20px) auto;
    padding: 10px 14px; border: 1px solid var(--warning); border-radius: 12px; background: rgba(255, 234, 0, 0.08);
    color: var(--text-main); font: 14px/1.5 var(--font-ui);
}
.mfa-banner-link { margin-left: 6px; font-weight: 700; color: var(--accent-blue); white-space: nowrap; }

/* Help button, help panel and page tours (static/js/help.js) */
.tn-help {
    width: 32px; height: 32px; flex: 0 0 auto; border-radius: 50%; border: 1px solid var(--tn-line); cursor: pointer;
    background: rgb(var(--shade) / calc(0.3 * var(--shade-k))); color: var(--tn-blue); font: 700 15px var(--font-mono);
}
.tn-help:hover, .tn-help:focus-visible { border-color: var(--tn-blue); background: rgba(41, 182, 246, 0.12); }
.help-overlay { position: fixed; inset: 0; z-index: 200000; background: rgb(0 0 0 / 0.35); display: flex; justify-content: flex-end; }
.help-panel {
    position: relative; width: min(420px, 100%); height: 100%; overflow-y: auto; box-sizing: border-box; padding: 26px 24px 30px;
    background: var(--card-bg); backdrop-filter: blur(18px); -webkit-backdrop-filter: blur(18px);
    border-left: 1px solid var(--glass-border); box-shadow: -10px 0 40px rgb(0 0 0 / 0.3); color: var(--text-main);
    font: 14px/1.55 var(--font-ui); animation: help-in 0.18s ease-out;
}
@keyframes help-in { from { transform: translateX(30px); opacity: 0; } }
.help-panel h2 { margin: 2px 0 8px; font: 700 20px var(--font-ui); color: var(--text-strong, var(--text-main)); }
.help-kicker { font: 700 11px var(--font-mono); letter-spacing: 2px; text-transform: uppercase; color: var(--accent-blue); }
.help-intro { margin: 0 0 14px; color: var(--text-muted); }
.help-points { margin: 0 0 20px; padding-left: 18px; }
.help-points li { margin-bottom: 8px; }
.help-start { width: 100%; }
.help-more { display: block; margin-top: 16px; font-size: 12px; color: var(--accent-blue); }
.help-close { position: absolute; top: 12px; right: 14px; width: 34px; height: 34px; border: 0; border-radius: 50%;
              background: none; color: var(--text-muted); font-size: 24px; cursor: pointer; }
.help-close:hover { background: rgb(var(--hi) / 0.08); color: var(--text-main); }
.tour-spot {
    position: fixed; z-index: 200001; border-radius: 10px; pointer-events: none; border: 2px solid var(--accent-blue);
    box-shadow: 0 0 0 9999px rgb(0 0 0 / 0.55), 0 0 18px rgba(41, 182, 246, 0.6); transition: all 0.25s ease;
}
.tour-bubble {
    position: fixed; z-index: 200002; box-sizing: border-box; padding: 16px 16px 12px; border-radius: 14px;
    background: var(--card-bg); backdrop-filter: blur(18px); -webkit-backdrop-filter: blur(18px);
    border: 1px solid var(--accent-blue); box-shadow: 0 12px 40px rgb(0 0 0 / 0.4); color: var(--text-main);
    font: 14px/1.5 var(--font-ui); transition: top 0.25s ease, left 0.25s ease;
}
.tour-bubble h3 { margin: 0 0 6px; padding: 0; border: 0; font: 700 15px var(--font-ui); color: var(--accent-blue); }
.tour-bubble h3::before { content: none; }
.tour-bubble p { margin: 0 0 12px; }
.tour-nav { display: flex; align-items: center; gap: 8px; }
.tour-count { margin-left: auto; font: 12px var(--font-mono); color: var(--text-muted); }
.tour-end, .tour-never { border: 0; background: none; padding: 4px 0; color: var(--text-muted); cursor: pointer; font: 12px var(--font-ui); text-decoration: underline; }
.tour-offer {
    position: fixed; right: 16px; bottom: 90px; z-index: 199999; width: min(320px, calc(100% - 32px)); box-sizing: border-box;
    padding: 14px 16px; border-radius: 14px; background: var(--card-bg); backdrop-filter: blur(18px); -webkit-backdrop-filter: blur(18px);
    border: 1px solid var(--accent-blue); box-shadow: 0 12px 40px rgb(0 0 0 / 0.35); color: var(--text-main);
    font: 14px/1.5 var(--font-ui); animation: help-in 0.2s ease-out;
}
.tour-offer p { margin: 4px 0 10px; color: var(--text-muted); }
.tour-offer-row { display: flex; justify-content: flex-end; gap: 8px; }
.tour-never { display: block; margin-top: 6px; }
@media (max-width: 700px) { .tour-offer { bottom: 84px; right: 12px; } }
@media (prefers-reduced-motion: reduce) { .help-panel, .tour-offer { animation: none; } .tour-spot, .tour-bubble { transition: none; } }
.help-panel h2, .tour-bubble h3 { display: block; text-transform: none; letter-spacing: 0; }
.help-panel h2::after, .help-panel h2::before { content: none; }
/* warnings of the status page (backup, tripwires, versions …): yellow, not red */
.tn-health.warn { border-color: rgba(255, 234, 0, 0.45); }
.tn-health.warn .tn-dot { background: var(--tn-yellow); box-shadow: 0 0 8px var(--tn-yellow); }
:root[data-theme="light"] .tn-health.warn { border-color: rgba(154, 103, 0, 0.45); color: var(--warning); }