/* ============================================================
   ITNS app stylesheet — static design system for Phase 1+ pages.
   Mirrors src/css/input.css tokens so app pages render with no
   build step. (Tailwind utilities remain available if you run
   `npm run build`, but nothing here depends on them.)
   ============================================================ */
:root {
  --c-bg: 238 243 246; --c-surface: 255 255 255;
  --c-ink: 11 31 42; --c-muted: 81 105 122;
  --c-brand: 6 182 164; --c-brand-strong: 14 116 144;
  --c-accent: 244 162 89; --c-line: 17 39 53; --c-shadow: 13 35 56;
  --c-ok: 22 163 110; --c-warn: 217 119 6; --c-danger: 220 80 80;
  --glass-alpha: 0.62; --glass-border: 0.70;
  --mesh-1: 6 182 164; --mesh-2: 56 132 222; --mesh-3: 244 162 89;
}
html.dark {
  --c-bg: 7 13 22; --c-surface: 255 255 255;
  --c-ink: 231 238 245; --c-muted: 138 160 178;
  --c-brand: 45 212 191; --c-brand-strong: 34 197 211;
  --c-accent: 247 178 103; --c-line: 255 255 255; --c-shadow: 0 0 0;
  --c-ok: 52 211 153; --c-warn: 251 191 36; --c-danger: 248 113 113;
  --glass-alpha: 0.06; --glass-border: 0.12;
  --mesh-1: 13 148 136; --mesh-2: 37 99 235; --mesh-3: 217 119 66;
}

* { box-sizing: border-box; }
html, body { margin: 0; min-height: 100%; }
body {
  font-family: "Hanken Grotesk", system-ui, sans-serif;
  color: rgb(var(--c-ink)); background-color: rgb(var(--c-bg));
  -webkit-font-smoothing: antialiased; overflow-x: hidden;
  transition: background-color .4s ease, color .4s ease;
}
h1, h2, h3, .display { font-family: "Bricolage Grotesque", system-ui, sans-serif; letter-spacing: -.015em; margin: 0; }
a { color: rgb(var(--c-brand)); text-decoration: none; }
a:hover { text-decoration: underline; }

/* mesh background */
.mesh { position: fixed; inset: 0; z-index: -2; overflow: hidden; }
.blob { position: absolute; border-radius: 50%; filter: blur(70px); opacity: .5; }
html.dark .blob { opacity: .35; }
.blob.b1 { width: 44vmax; height: 44vmax; top: -14vmax; left: -10vmax; background: rgb(var(--mesh-1)); }
.blob.b2 { width: 38vmax; height: 38vmax; bottom: -16vmax; right: -8vmax; background: rgb(var(--mesh-2)); }
.blob.b3 { width: 24vmax; height: 24vmax; top: 40%; right: 24%; background: rgb(var(--mesh-3)); opacity: .28; }

/* glass primitives */
.glass {
  background-color: rgb(var(--c-surface) / var(--glass-alpha));
  border: 1px solid rgb(var(--c-line) / var(--glass-border));
  -webkit-backdrop-filter: blur(16px) saturate(140%);
  backdrop-filter: blur(16px) saturate(140%);
}

/* layout */
.container { width: 100%; max-width: 1080px; margin: 0 auto; padding: 0 clamp(16px,4vw,32px); }
.stack > * + * { margin-top: 16px; }
.row { display: flex; align-items: center; gap: 12px; }
.spread { display: flex; align-items: center; justify-content: space-between; gap: 12px; }
.grid { display: grid; gap: 16px; }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-2 { grid-template-columns: repeat(2, 1fr); }
@media (max-width: 760px) { .grid-3, .grid-2 { grid-template-columns: 1fr; } }
.muted { color: rgb(var(--c-muted)); }
.center-screen { min-height: 100dvh; display: grid; place-items: center; padding: 32px 0 56px; }

/* topbar */
.topbar { position: sticky; top: 0; z-index: 10; display: flex; align-items: center; justify-content: space-between; padding: 12px clamp(16px,4vw,32px); }
.brandmark { display: flex; align-items: center; gap: 10px; }
.brandmark .logo { width: 32px; height: 32px; color: rgb(var(--c-brand)); }
.wordmark { font-family: "Bricolage Grotesque", sans-serif; font-weight: 800; font-size: 1.05rem; }
.wordmark span { color: rgb(var(--c-brand)); }
.nav { display: flex; align-items: center; gap: 8px; }
.nav a { color: rgb(var(--c-ink)); padding: 8px 12px; border-radius: 10px; font-weight: 500; font-size: .92rem; }
.nav a:hover { text-decoration: none; background-color: rgb(var(--c-surface) / calc(var(--glass-alpha) * .6)); }

.icon-btn { width: 40px; height: 40px; border-radius: 12px; display: grid; place-items: center; color: rgb(var(--c-ink)); cursor: pointer; }
.icon-btn:hover { filter: brightness(1.08); }
.icon-btn svg { width: 19px; height: 19px; }
.sun { display: none; } html.dark .sun { display: block; } html.dark .moon { display: none; }

/* cards */
.card { border-radius: 20px; padding: clamp(20px,3vw,30px); box-shadow: 0 18px 50px -26px rgb(var(--c-shadow) / .5); }
.card-tight { border-radius: 16px; padding: 16px 18px; }
.stat { border-radius: 16px; padding: 18px; }
.stat .n { font-family: "Bricolage Grotesque", sans-serif; font-size: 1.8rem; font-weight: 800; }
.stat .l { color: rgb(var(--c-muted)); font-size: .85rem; }

/* forms */
.label { display: block; font-size: .8rem; font-weight: 600; color: rgb(var(--c-muted)); margin: 14px 0 6px; }
.field, select.field {
  width: 100%; border-radius: 13px; padding: 11px 13px; font: inherit; color: rgb(var(--c-ink));
  background-color: rgb(var(--c-surface) / calc(var(--glass-alpha) * .55));
  border: 1px solid rgb(var(--c-line) / var(--glass-border)); outline: none;
}
.field::placeholder { color: rgb(var(--c-muted)); }
.field:focus { border-color: rgb(var(--c-brand) / .8); box-shadow: 0 0 0 3px rgb(var(--c-brand) / .18); }
.field:disabled { opacity: .6; cursor: not-allowed; }

/* buttons */
.btn { display: inline-flex; align-items: center; justify-content: center; gap: 8px; border: 0; cursor: pointer;
       border-radius: 13px; padding: 11px 18px; font: inherit; font-weight: 600; transition: transform .15s, filter .15s, opacity .15s; }
.btn:disabled { opacity: .55; cursor: not-allowed; }
.btn-brand { color: #fff; background-image: linear-gradient(135deg, rgb(var(--c-brand)), rgb(var(--c-brand-strong)));
             box-shadow: 0 10px 26px -12px rgb(var(--c-brand) / .8); }
.btn-brand:not(:disabled):hover { transform: translateY(-1px); filter: brightness(1.05); }
.btn-ghost { color: rgb(var(--c-ink)); background-color: rgb(var(--c-surface) / var(--glass-alpha));
             border: 1px solid rgb(var(--c-line) / var(--glass-border)); }
.btn-danger { color: #fff; background: rgb(var(--c-danger)); }
.btn-block { width: 100%; }
.btn-sm { padding: 7px 12px; font-size: .86rem; border-radius: 10px; }

/* tabs */
.tabs { display: flex; gap: 6px; padding: 5px; border-radius: 14px; background-color: rgb(var(--c-surface) / calc(var(--glass-alpha) * .5)); }
.tab { flex: 1; text-align: center; padding: 9px; border-radius: 10px; font-weight: 600; font-size: .9rem; color: rgb(var(--c-muted)); cursor: pointer; }
.tab.active { color: #fff; background-image: linear-gradient(135deg, rgb(var(--c-brand)), rgb(var(--c-brand-strong))); }

/* chips & badges */
.chip { display: inline-flex; align-items: center; gap: 7px; font-size: .78rem; font-weight: 500; padding: 6px 11px; border-radius: 999px;
        background-color: rgb(var(--c-surface) / calc(var(--glass-alpha) * .7)); border: 1px solid rgb(var(--c-line) / var(--glass-border)); }
.dot { width: 8px; height: 8px; border-radius: 50%; background: rgb(var(--c-accent)); }
.dot.ok { background: rgb(var(--c-ok)); }
.badge { display: inline-flex; align-items: center; gap: 6px; font-size: .74rem; font-weight: 700; padding: 4px 10px; border-radius: 999px; text-transform: capitalize; }
.badge.pending  { color: rgb(var(--c-warn));   background: rgb(var(--c-warn) / .14); }
.badge.approved { color: rgb(var(--c-ok));     background: rgb(var(--c-ok) / .14); }
.badge.rejected { color: rgb(var(--c-danger)); background: rgb(var(--c-danger) / .14); }
.badge.suspended{ color: rgb(var(--c-muted));  background: rgb(var(--c-muted) / .14); }

/* table */
.table { width: 100%; border-collapse: collapse; font-size: .92rem; }
.table th { text-align: left; font-size: .76rem; text-transform: uppercase; letter-spacing: .08em; color: rgb(var(--c-muted)); padding: 10px 12px; }
.table td { padding: 12px; border-top: 1px solid rgb(var(--c-line) / var(--glass-border)); }
.table tr:hover td { background-color: rgb(var(--c-surface) / calc(var(--glass-alpha) * .4)); }

/* alerts */
.alert { display: flex; gap: 10px; align-items: flex-start; padding: 12px 14px; border-radius: 13px; font-size: .9rem; }
.alert svg { width: 18px; height: 18px; flex: none; margin-top: 1px; }
.alert.info   { color: rgb(var(--c-ink));    background: rgb(var(--c-brand) / .1);  border: 1px solid rgb(var(--c-brand) / .3); }
.alert.warn   { color: rgb(var(--c-ink));    background: rgb(var(--c-accent) / .12); border: 1px solid rgb(var(--c-accent) / .35); }
.alert.error  { color: rgb(var(--c-danger)); background: rgb(var(--c-danger) / .1); border: 1px solid rgb(var(--c-danger) / .3); }
.alert.success{ color: rgb(var(--c-ok));     background: rgb(var(--c-ok) / .1);     border: 1px solid rgb(var(--c-ok) / .3); }
.hidden { display: none !important; }

/* spinner */
.spinner { width: 18px; height: 18px; border: 2px solid rgb(var(--c-line) / .3); border-top-color: rgb(var(--c-brand)); border-radius: 50%; animation: spin .7s linear infinite; }
@keyframes spin { to { transform: rotate(360deg); } }

/* toast */
.toast-wrap { position: fixed; right: 18px; bottom: 18px; z-index: 50; display: flex; flex-direction: column; gap: 10px; }
.toast { padding: 12px 16px; border-radius: 13px; box-shadow: 0 14px 40px -16px rgb(var(--c-shadow) / .6); animation: rise .3s ease; }
@keyframes rise { from { opacity: 0; transform: translateY(8px); } to { opacity: 1; transform: none; } }

.avatar { width: 40px; height: 40px; border-radius: 50%; display: grid; place-items: center; font-weight: 700; color: #fff;
          background-image: linear-gradient(135deg, rgb(var(--c-brand)), rgb(var(--c-brand-strong))); }

/* ============================================================
   Phase 2 additions — profile, settings, subscribers
   ============================================================ */
.avatar-lg {
  width: 88px; height: 88px; border-radius: 50%; display: grid; place-items: center;
  font-family: "Bricolage Grotesque", sans-serif; font-weight: 800; font-size: 2rem; color: #fff;
  background-image: linear-gradient(135deg, rgb(var(--c-brand)), rgb(var(--c-brand-strong)));
  overflow: hidden; flex: none;
}
.avatar-lg img { width: 100%; height: 100%; object-fit: cover; }

.upload { display: inline-flex; align-items: center; gap: 8px; cursor: pointer; }
.sr-file { position: absolute; width: 1px; height: 1px; opacity: 0; pointer-events: none; }

.color-row { display: flex; align-items: center; gap: 10px; }
input[type="color"] {
  width: 46px; height: 38px; border: 1px solid rgb(var(--c-line) / var(--glass-border));
  background: none; border-radius: 11px; cursor: pointer; padding: 2px;
}
input[type="color"]::-webkit-color-swatch { border: none; border-radius: 8px; }
input[type="color"]::-moz-color-swatch { border: none; border-radius: 8px; }

/* toggle switch */
.switch { position: relative; display: inline-block; width: 46px; height: 26px; flex: none; cursor: pointer; }
.switch input { position: absolute; opacity: 0; width: 0; height: 0; }
.switch .track { position: absolute; inset: 0; border-radius: 999px; background: rgb(var(--c-muted) / .4); transition: background .2s; }
.switch .thumb { position: absolute; top: 3px; left: 3px; width: 20px; height: 20px; border-radius: 50%; background: #fff; transition: transform .2s; box-shadow: 0 1px 3px rgb(0 0 0 / .3); }
.switch input:checked + .track { background: rgb(var(--c-brand)); }
.switch input:checked + .track .thumb { transform: translateX(20px); }

/* generic list rows */
.list { border-radius: 14px; overflow: hidden; }
.list-row { display: flex; align-items: center; justify-content: space-between; gap: 12px; padding: 13px 14px; border-top: 1px solid rgb(var(--c-line) / var(--glass-border)); }
.list-row:first-child { border-top: 0; }

.input-row { display: flex; gap: 10px; align-items: stretch; }
.input-row .field { flex: 1; }

.toolbar { display: flex; gap: 10px; flex-wrap: wrap; align-items: center; }
.toolbar .field { max-width: 280px; }
.seg { display: inline-flex; padding: 4px; border-radius: 12px; gap: 4px; }
.seg button { border: 0; background: none; cursor: pointer; font: inherit; font-weight: 600; font-size: .85rem; color: rgb(var(--c-muted)); padding: 7px 12px; border-radius: 9px; }
.seg button.active { color: #fff; background-image: linear-gradient(135deg, rgb(var(--c-brand)), rgb(var(--c-brand-strong))); }

/* ============================================================
   Phase 3 additions — notification bell + announcements
   ============================================================ */
.bell { position: relative; }
.bell-badge {
  position: absolute; top: -4px; right: -4px; min-width: 18px; height: 18px; padding: 0 4px;
  border-radius: 999px; background: rgb(var(--c-danger)); color: #fff;
  font-size: .66rem; font-weight: 700; display: grid; place-items: center; line-height: 1;
}
.popover {
  position: absolute; right: 0; top: 50px; width: 330px; border-radius: 16px; z-index: 40;
  box-shadow: 0 24px 60px -24px rgb(var(--c-shadow) / .6); overflow: hidden;
}
.notif { display: flex; gap: 10px; padding: 12px 14px; border-top: 1px solid rgb(var(--c-line) / var(--glass-border)); cursor: pointer; }
.notif:first-child { border-top: 0; }
.notif:hover { background: rgb(var(--c-surface) / calc(var(--glass-alpha) * .5)); }
.notif.unread { background: rgb(var(--c-brand) / .06); }
.notif-dot { width: 8px; height: 8px; border-radius: 50%; margin-top: 6px; flex: none; background: transparent; }
.notif.unread .notif-dot { background: rgb(var(--c-brand)); }
@media (max-width: 480px) { .popover { width: min(92vw, 330px); } }

/* announcement card + type badges */
.ann { padding: 16px; border-radius: 14px; border: 1px solid rgb(var(--c-line) / var(--glass-border)); }
.ann + .ann { margin-top: 12px; }
.ann-title { font-family: "Bricolage Grotesque", sans-serif; font-weight: 700; font-size: 1.02rem; }
.ann-body { color: rgb(var(--c-ink)); font-size: .92rem; margin-top: 6px; white-space: pre-wrap; }
.badge.maintenance { color: rgb(var(--c-warn));   background: rgb(var(--c-warn) / .14); }
.badge.outage      { color: rgb(var(--c-danger)); background: rgb(var(--c-danger) / .14); }
.badge.promo       { color: rgb(var(--c-brand));  background: rgb(var(--c-brand) / .14); }
.badge.billing     { color: rgb(var(--c-accent)); background: rgb(var(--c-accent) / .18); }
.badge.general     { color: rgb(var(--c-muted));  background: rgb(var(--c-muted) / .16); }
.prio-urgent { box-shadow: inset 3px 0 0 rgb(var(--c-danger)); }
.prio-high   { box-shadow: inset 3px 0 0 rgb(var(--c-accent)); }

/* ============================================================
   Phase 4 additions — community chat
   ============================================================ */
.chat-wrap { display: grid; grid-template-columns: 264px 1fr; gap: 16px; height: calc(100dvh - 150px); min-height: 440px; }
.room-list { overflow: auto; border-radius: 16px; padding: 8px; }
.room-item { display: flex; flex-direction: column; gap: 2px; padding: 11px 12px; border-radius: 11px; cursor: pointer; }
.room-item:hover { background: rgb(var(--c-surface) / calc(var(--glass-alpha) * .5)); }
.room-item.active { background-image: linear-gradient(135deg, rgb(var(--c-brand)), rgb(var(--c-brand-strong))); color: #fff; }
.room-item .rn { font-weight: 600; font-size: .92rem; }
.room-item .rd { font-size: .76rem; opacity: .8; }

.thread { display: flex; flex-direction: column; border-radius: 16px; overflow: hidden; min-height: 0; }
.thread-head { padding: 13px 16px; border-bottom: 1px solid rgb(var(--c-line) / var(--glass-border)); display: flex; align-items: center; gap: 10px; }
.msgs { flex: 1; overflow: auto; padding: 16px; display: flex; flex-direction: column; gap: 10px; }
.msg { display: flex; gap: 8px; max-width: 80%; }
.msg .b { padding: 9px 12px; border-radius: 14px; font-size: .92rem; white-space: pre-wrap; overflow-wrap: anywhere; }
.msg .meta { font-size: .72rem; color: rgb(var(--c-muted)); margin-bottom: 3px; }
.msg.them { align-self: flex-start; }
.msg.them .b { background: rgb(var(--c-surface) / calc(var(--glass-alpha) * .7)); border: 1px solid rgb(var(--c-line) / var(--glass-border)); border-bottom-left-radius: 4px; }
.msg.me { align-self: flex-end; flex-direction: row-reverse; }
.msg.me .b { background-image: linear-gradient(135deg, rgb(var(--c-brand)), rgb(var(--c-brand-strong))); color: #fff; border-bottom-right-radius: 4px; }
.msg.me .meta { text-align: right; }
.msg .av { width: 30px; height: 30px; border-radius: 50%; flex: none; display: grid; place-items: center; font-size: .8rem; font-weight: 700; color: #fff; background-image: linear-gradient(135deg, rgb(var(--c-brand)), rgb(var(--c-brand-strong))); overflow: hidden; }
.msg .av img { width: 100%; height: 100%; object-fit: cover; }
.msg .del { opacity: 0; cursor: pointer; font-size: .8rem; color: rgb(var(--c-muted)); align-self: center; padding: 0 4px; }
.msg:hover .del { opacity: 1; }

.composer { display: flex; gap: 10px; padding: 12px; border-top: 1px solid rgb(var(--c-line) / var(--glass-border)); }
.composer textarea { flex: 1; resize: none; border-radius: 12px; padding: 10px 12px; font: inherit; color: rgb(var(--c-ink)); background: rgb(var(--c-surface) / calc(var(--glass-alpha) * .55)); border: 1px solid rgb(var(--c-line) / var(--glass-border)); max-height: 120px; }
.composer textarea:focus { outline: none; border-color: rgb(var(--c-brand) / .8); box-shadow: 0 0 0 3px rgb(var(--c-brand) / .18); }
.chat-back { display: none; }
@media (max-width: 760px) {
  .chat-wrap { grid-template-columns: 1fr; height: calc(100dvh - 132px); }
  .chat-wrap.show-thread .room-list { display: none; }
  .chat-wrap:not(.show-thread) .thread { display: none; }
  .chat-back { display: inline-flex; }
}

/* ============================================================
   Phase 5 additions — tickets + direct messages
   ============================================================ */
.room-item .row-top { display: flex; align-items: center; justify-content: space-between; gap: 8px; }
.room-item .badge { font-size: .66rem; padding: 2px 7px; }
.unread-dot { width: 9px; height: 9px; border-radius: 50%; background: rgb(var(--c-brand)); flex: none; }
.badge.open { color: rgb(var(--c-brand)); background: rgb(var(--c-brand) / .14); }
.badge.in_progress { color: rgb(var(--c-accent)); background: rgb(var(--c-accent) / .18); }
.badge.resolved { color: rgb(var(--c-ok)); background: rgb(var(--c-ok) / .14); }
.badge.closed { color: rgb(var(--c-muted)); background: rgb(var(--c-muted) / .16); }
.thread-head select.field { width: auto; padding: 6px 10px; }
.new-form { padding: 18px; overflow: auto; }

/* ============================================================
   Phase 6 additions — analytics + audit
   ============================================================ */
.kpi-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(150px, 1fr)); gap: 14px; }
.hbar { display: grid; grid-template-columns: 130px 1fr 46px; align-items: center; gap: 10px; margin: 9px 0; }
.hbar .lbl { font-size: .85rem; color: rgb(var(--c-muted)); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.hbar .track { height: 12px; border-radius: 999px; background: rgb(var(--c-line) / .18); overflow: hidden; }
.hbar .fill { display: block; height: 100%; border-radius: 999px; background-image: linear-gradient(90deg, rgb(var(--c-brand)), rgb(var(--c-brand-strong))); }
.hbar .val { font-size: .85rem; text-align: right; font-weight: 600; }
.chart-svg { width: 100%; height: 170px; color: rgb(var(--c-muted)); display: block; }
.chart-bar { fill: rgb(var(--c-brand)); }
.audit-meta { font-family: ui-monospace, SFMono-Regular, Menlo, monospace; font-size: .78rem; color: rgb(var(--c-muted)); }
.action-pill { font-size: .72rem; font-weight: 600; padding: 3px 9px; border-radius: 999px; background: rgb(var(--c-brand) / .12); color: rgb(var(--c-brand)); white-space: nowrap; }

/* ============================================================
   Phase 7 — hardening: mobile nav, focus, reduced motion
   ============================================================ */
.nav-toggle { display: none; }

@media (max-width: 720px) {
  header.topbar { position: relative; flex-wrap: wrap; }
  .nav-toggle { display: grid; place-items: center; }
  header.topbar .nav {
    position: absolute; top: 62px; right: 12px; left: 12px;
    flex-direction: column; align-items: stretch; gap: 6px;
    padding: 10px; border-radius: 16px; z-index: 45; display: none;
    background-color: rgb(238 243 246 / 0.99);
    border: 1px solid rgb(var(--c-line) / var(--glass-border));
    -webkit-backdrop-filter: blur(18px); backdrop-filter: blur(18px);
    box-shadow: 0 24px 60px -24px rgb(var(--c-shadow) / .6);
  }
  html.dark header.topbar .nav { background-color: rgb(14 20 30 / 0.99); }
  header.topbar .nav.open { display: flex; }
  header.topbar .nav a { width: 100%; padding: 11px 12px; }
  header.topbar .nav .btn { width: 100%; }
  .bell { align-self: flex-start; }
  .bell .popover { position: fixed; top: 64px; right: 12px; left: 12px; width: auto; }
  .chat-wrap { grid-template-columns: 1fr; }
}

/* visible keyboard focus everywhere interactive */
a:focus-visible, button:focus-visible, input:focus-visible, select:focus-visible,
textarea:focus-visible, .icon-btn:focus-visible, .tab:focus-visible,
.room-item:focus-visible, [tabindex]:focus-visible {
  outline: 2px solid rgb(var(--c-brand)); outline-offset: 2px; border-radius: 6px;
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: .001ms !important; animation-iteration-count: 1 !important;
    transition-duration: .001ms !important; scroll-behavior: auto !important;
  }
}