/* Hearth — reference kit (Tastefolio). Warm paper, ink actions, mono labels, dense honest tables.
   Requires tokens.css. Logical properties only (RTL-safe). */

*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body { margin: 0; background: var(--canvas); color: var(--ink); font: var(--fw-regular) var(--fs-md)/var(--lh-body) var(--font-sans); -webkit-font-smoothing: antialiased; }
img, svg { display: block; max-width: 100%; }
a { color: inherit; }
button, input, select, textarea { font: inherit; color: inherit; }
h1, h2, h3, h4, p { margin: 0; }
:focus-visible { outline: 2px solid var(--ink); outline-offset: 2px; border-radius: 4px; }
::selection { background: color-mix(in oklab, var(--brand) 30%, transparent); }
[dir="rtl"] .flip-rtl { transform: scaleX(-1); }
.sr-only { position: absolute; inline-size: 1px; block-size: 1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; }
.skip-link { position: absolute; inset-inline-start: 12px; inset-block-start: -60px; z-index: 100; background: var(--surface-ink); color: var(--ink-inverse); padding: 10px 14px; border-radius: var(--radius-md); }
.skip-link:focus { inset-block-start: 12px; }
.ti { font-size: 1.15em; line-height: 1; }

/* layout */
.container { max-inline-size: var(--container); margin-inline: auto; padding-inline: var(--gutter); }
.row { display: flex; align-items: center; gap: var(--gap, var(--space-3)); flex-wrap: wrap; }
.stack { display: flex; flex-direction: column; gap: var(--gap, var(--space-4)); }
.grid { display: grid; gap: var(--gap, var(--space-4)); grid-template-columns: repeat(var(--cols, 3), minmax(0, 1fr)); }
.grid > * { min-inline-size: 0; }
@media (max-width: 900px) { .grid { grid-template-columns: repeat(min(var(--cols, 3), 2), minmax(0, 1fr)); } }
@media (max-width: 600px) { .grid { grid-template-columns: minmax(0, 1fr); } }
.section { padding-block: clamp(64px, 9vw, 120px); }

/* type */
.label-mono { font: 500 var(--fs-xs)/1.4 var(--font-mono); text-transform: uppercase; letter-spacing: var(--tracking-caps); color: var(--ink-3); }
:lang(fa) .label-mono { font-family: var(--font-sans); font-size: 13px; text-transform: none; font-weight: 600; }
.display { font: var(--fw-display) var(--fs-display)/var(--lh-tight) var(--font-display); letter-spacing: var(--tracking-display); text-wrap: balance; }
.h2 { font: var(--fw-display) clamp(30px, 4vw, 48px)/1.08 var(--font-display); letter-spacing: calc(var(--tracking-display) * .8); text-wrap: balance; }
:lang(fa) .h2 { line-height: 1.45; }
.h3 { font-size: var(--fs-xl); font-weight: 600; letter-spacing: -.01em; line-height: 1.25; }
.dim { color: var(--ink-3); }
.lead { font-size: clamp(16px, 1.5vw, var(--fs-lg)); color: var(--ink-2); max-inline-size: 60ch; }
.muted { color: var(--ink-2); }
.small { font-size: var(--fs-sm); }
.mono { font-family: var(--font-mono); font-size: .92em; }
.num { font-variant-numeric: tabular-nums; }

/* buttons */
.btn { display: inline-flex; align-items: center; justify-content: center; gap: var(--space-2); min-block-size: var(--control-h); padding-inline: 14px; border-radius: var(--radius-md); border: 1px solid transparent; background: transparent; font-size: 14px; font-weight: 500; line-height: 1; cursor: pointer; text-decoration: none; white-space: nowrap; transition: background var(--dur-1) var(--ease), border-color var(--dur-1) var(--ease), opacity var(--dur-1); }
.btn-ink { background: var(--surface-ink); color: var(--ink-inverse); }
.btn-ink:hover { opacity: .86; }
.btn-outline { background: var(--surface); border-color: var(--line-2); color: var(--ink); }
.btn-outline:hover { border-color: var(--ink-3); }
.btn-ghost { color: var(--ink-2); }
.btn-ghost:hover { background: var(--surface-3); color: var(--ink); }
.btn-danger { background: var(--danger); color: #fff; }
.btn-lg { min-block-size: var(--control-h-lg); padding-inline: 20px; font-size: 15px; }
.btn-icon { inline-size: var(--control-h); padding: 0; }
.btn[aria-pressed="true"] { background: var(--surface); border-color: var(--line-2); color: var(--ink); box-shadow: var(--shadow-1); }
.text-link { color: var(--ink); text-decoration: underline; text-decoration-thickness: 1px; text-underline-offset: 4px; font-weight: 500; }
.text-link:hover { text-decoration-color: var(--brand); }

/* announcement bar + site header */
.announce { background: var(--surface-ink); color: var(--ink-inverse); font: 500 11.5px/1 var(--font-mono); letter-spacing: .06em; text-transform: uppercase; }
:lang(fa) .announce { font: 500 13px/1 var(--font-sans); letter-spacing: 0; text-transform: none; }
.announce .container { display: flex; align-items: center; gap: var(--space-5); min-block-size: 38px; }
.announce a { color: inherit; text-underline-offset: 3px; }
.announce .end { margin-inline-start: auto; display: flex; gap: var(--space-5); }
.announce .end a { text-decoration: none; opacity: .75; }
.announce .end a:hover { opacity: 1; }
.site-header { position: sticky; inset-block-start: 0; z-index: 30; background: color-mix(in oklab, var(--canvas) 90%, transparent); backdrop-filter: blur(10px); border-block-end: 1px solid var(--line); }
.site-header > .container { display: flex; align-items: center; gap: var(--space-6); min-block-size: var(--header-h); }
.logo { display: inline-flex; align-items: center; gap: 10px; font-weight: 700; font-size: 19px; letter-spacing: -.02em; text-decoration: none; }
.logo-grid { display: grid; grid-template-columns: repeat(3, 5px); gap: 3px; }
.logo-grid i { inline-size: 5px; block-size: 5px; border-radius: 50%; background: var(--ink); }
.logo-grid i:nth-child(2n) { opacity: .28; }
.nav { display: flex; gap: 2px; }
.nav-item { position: relative; }
.nav-btn { display: inline-flex; align-items: center; gap: 6px; padding: 8px 10px; border: 0; background: none; border-radius: var(--radius-md); font-size: 14.5px; font-weight: 500; cursor: pointer; text-decoration: none; color: var(--ink); }
.nav-btn:hover { background: var(--surface-3); }
.nav-btn .plus { position: relative; inline-size: 9px; block-size: 9px; }
.nav-btn .plus::before, .nav-btn .plus::after { content: ""; position: absolute; inset-block-start: 4px; inset-inline: 0; block-size: 1.5px; background: currentColor; transition: transform var(--dur-2) var(--ease); }
.nav-btn .plus::after { transform: rotate(90deg); }
.nav-btn[aria-expanded="true"] .plus::after { transform: rotate(0deg); }
.mega { position: absolute; inset-block-start: calc(100% + 10px); inset-inline-start: -8px; inline-size: min(560px, 90vw); display: none; grid-template-columns: 1fr 1fr; gap: 2px; padding: 10px; background: var(--surface); border-radius: var(--radius-lg); box-shadow: var(--shadow-2); z-index: 50; }
.mega[data-open] { display: grid; }
.mega a { display: grid; grid-template-columns: 32px 1fr; gap: 2px 12px; padding: 12px; border-radius: 10px; text-decoration: none; }
.mega a:hover { background: var(--surface-2); }
.mega .ti { grid-row: span 2; inline-size: 32px; block-size: 32px; display: grid; place-items: center; border-radius: 8px; background: var(--surface-3); font-size: 18px; }
.mega b { font-weight: 600; font-size: 14.5px; }
.mega span { color: var(--ink-3); font-size: 13px; }
.header-end { margin-inline-start: auto; display: flex; align-items: center; gap: var(--space-2); }
.menu-btn { display: none; }
@media (max-width: 900px) {
  .menu-btn { display: inline-flex; }
  .nav { display: none; position: absolute; inset-inline: 0; inset-block-start: 100%; flex-direction: column; align-items: stretch; padding: var(--space-3) var(--gutter) var(--space-6); background: var(--canvas); border-block-end: 1px solid var(--line); }
  .nav[data-open] { display: flex; }
  .nav-btn { inline-size: 100%; justify-content: space-between; padding: 14px 4px; font-size: 17px; border-block-end: 1px solid var(--line); border-radius: 0; }
  .mega { position: static; inline-size: 100%; box-shadow: none; grid-template-columns: 1fr; padding: 0 0 var(--space-3); background: transparent; }
  .hide-md { display: none !important; }
}

/* hero */
.hero { text-align: center; padding-block: clamp(56px, 9vw, 112px) clamp(40px, 6vw, 72px); }
.hero .display { max-inline-size: 18ch; margin-inline: auto; }
.hero .lead { margin: var(--space-6) auto 0; }
.hero-cta { display: flex; justify-content: center; align-items: center; gap: var(--space-5); margin-block-start: var(--space-7); flex-wrap: wrap; }

/* feature tab row: the active card fills with the accent */
.feature-tabs { display: grid; grid-template-columns: repeat(5, minmax(0, 1fr)); gap: var(--space-2); }
.feature-tab { text-align: start; display: grid; align-content: start; gap: 6px; padding: var(--space-4); min-block-size: 132px; border: 0; border-radius: var(--radius-md); background: transparent; cursor: pointer; transition: background var(--dur-2) var(--ease), color var(--dur-2); }
.feature-tab .ti { font-size: 20px; color: var(--brand); margin-block-end: var(--space-2); }
.feature-tab b { font-weight: 600; font-size: 15px; }
.feature-tab span { color: var(--ink-2); font-size: 13.5px; line-height: 1.45; }
.feature-tab:hover { background: var(--surface-3); }
.feature-tab[aria-selected="true"] { background: var(--brand); color: var(--brand-ink); }
.feature-tab[aria-selected="true"] .ti, .feature-tab[aria-selected="true"] span { color: inherit; }
.feature-tab[aria-selected="true"] span { opacity: .88; }
@media (max-width: 900px) { .feature-tabs { grid-template-columns: none; grid-auto-flow: column; grid-auto-columns: 72%; overflow-x: auto; scroll-snap-type: x mandatory; padding-block-end: 4px; } .feature-tab { scroll-snap-align: start; } }
.panel { background: var(--surface); border-radius: var(--radius-xl); padding: clamp(24px, 4vw, 48px); border: 1px solid var(--line); }
.panel-split { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1.15fr); gap: clamp(28px, 5vw, 64px); align-items: center; }
@media (max-width: 900px) { .panel-split { grid-template-columns: minmax(0, 1fr); } }
.dot-list { list-style: none; padding: 0; margin: var(--space-5) 0 var(--space-6); display: grid; gap: var(--space-3); color: var(--ink-2); }
.dot-list li { display: grid; grid-template-columns: 14px 1fr; gap: var(--space-2); }
.dot-list li::before { content: ""; inline-size: 8px; block-size: 8px; border-radius: 50%; background: var(--brand); margin-block-start: .55em; }

/* network diagram (SVG) */
.diagram { background: var(--surface-2); border: 1px solid var(--line); border-radius: var(--radius-lg); padding: var(--space-4); }
.diagram svg { inline-size: 100%; block-size: auto; direction: ltr; }
.diagram .edge { stroke: var(--line-2); stroke-width: 1.5; stroke-dasharray: 4 5; fill: none; }
.diagram .edge.is-live { stroke: var(--brand); stroke-dasharray: none; }
.diagram .node rect { fill: var(--surface); stroke: var(--line-2); }
.diagram .node.is-hub rect { fill: var(--surface-ink); stroke: var(--surface-ink); }
.diagram .node.is-hub text { fill: var(--ink-inverse); }
.diagram text { font: 500 11px var(--font-mono); fill: var(--ink); }
.diagram .sub { fill: var(--ink-3); font-size: 10px; }
.diagram .pulse { fill: var(--brand); }

/* stats */
.stat-card { background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius-lg); padding: var(--space-7) var(--space-6) var(--space-6); display: grid; gap: var(--space-3); align-content: space-between; min-block-size: 220px; }
.stat-big { font: 500 clamp(48px, 6vw, 72px)/1 var(--font-display); letter-spacing: -.04em; font-variant-numeric: tabular-nums; }
:lang(fa) .stat-big { letter-spacing: 0; font-variant-numeric: normal; }
.stat-card p { color: var(--ink-2); max-inline-size: 30ch; }
.logo-strip { display: flex; flex-wrap: wrap; justify-content: center; gap: var(--space-5) clamp(24px, 5vw, 64px); color: var(--ink-3); font-weight: 700; font-size: 20px; letter-spacing: -.02em; }
.logo-strip span { display: inline-flex; align-items: center; gap: 8px; }

/* code */
.code { background: var(--surface-ink); color: var(--ink-inverse); border-radius: var(--radius-lg); padding: var(--space-5); font: 13px/1.75 var(--font-mono); overflow-x: auto; direction: ltr; text-align: left; margin: 0; }
.code .c { opacity: .55; }
.code .k { color: var(--brand); }

/* pricing */
.plans { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: var(--space-3); }
@media (max-width: 900px) { .plans { grid-template-columns: minmax(0, 1fr); } }
.plan { background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius-lg); padding: var(--space-6); display: flex; flex-direction: column; gap: var(--space-4); }
.plan.is-featured { outline: 2px solid var(--ink); outline-offset: -2px; }
.plan-price { font: 500 44px/1 var(--font-display); letter-spacing: -.03em; }
:lang(fa) .plan-price { letter-spacing: 0; font-size: 38px; }
.plan-price small { font: 400 13px var(--font-sans); color: var(--ink-3); letter-spacing: 0; }
.checks { list-style: none; padding: 0; margin: 0; display: grid; gap: 10px; font-size: 14px; color: var(--ink-2); }
.checks li { display: flex; gap: 10px; }
.checks .ti { color: var(--ink); }

/* forms */
.field { display: grid; gap: 6px; }
.label { font-size: 13px; font-weight: 600; }
.hint { font-size: 12px; color: var(--ink-3); }
.input, .select, .textarea { inline-size: 100%; min-block-size: var(--control-h-lg); padding: 9px 12px; border: 1px solid var(--line-2); border-radius: var(--radius-md); background: var(--surface); font-size: 15px; transition: border-color var(--dur-1), box-shadow var(--dur-1); }
.input:focus, .select:focus, .textarea:focus { outline: none; border-color: var(--ink); box-shadow: 0 0 0 3px var(--focus); }
.input-sm { min-block-size: var(--control-h); font-size: 14px; padding-block: 6px; }
.select { appearance: none; padding-inline-end: 34px; background: var(--surface) url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' fill='none' stroke='%238f877e' stroke-width='1.6'%3E%3Cpath d='m3 4.5 3 3 3-3'/%3E%3C/svg%3E") no-repeat right 12px center; }
[dir="rtl"] .select { background-position: left 12px center; }
.textarea { min-block-size: 110px; resize: vertical; }
[aria-invalid="true"] { border-color: var(--danger) !important; }
.field-error { color: var(--danger); font-size: 12.5px; }
.check { display: flex; gap: 10px; align-items: flex-start; font-size: 14px; cursor: pointer; }
.check input { accent-color: var(--ink); inline-size: 16px; block-size: 16px; margin-block-start: 3px; }
.toggle { position: relative; inline-size: 34px; block-size: 20px; flex: none; border-radius: 999px; border: 0; background: var(--line-2); cursor: pointer; padding: 0; }
.toggle::after { content: ""; position: absolute; inset-block-start: 2px; inset-inline-start: 2px; inline-size: 16px; block-size: 16px; border-radius: 50%; background: #fff; transition: transform var(--dur-2) var(--ease); }
.toggle[aria-checked="true"] { background: var(--surface-ink); }
.toggle[aria-checked="true"]::after { transform: translateX(14px); background: var(--canvas); }
[dir="rtl"] .toggle[aria-checked="true"]::after { transform: translateX(-14px); }

/* ------------------------------------------------------------ app shell */
.app-bar { background: var(--surface); border-block-end: 1px solid var(--line); }
.app-bar .container { display: flex; align-items: center; gap: var(--space-4); min-block-size: 56px; }
.org { display: inline-flex; align-items: center; gap: 8px; font: 500 13px var(--font-mono); color: var(--ink-2); padding: 6px 10px; border-radius: var(--radius-md); border: 0; background: none; cursor: pointer; }
.org:hover { background: var(--surface-3); }
.org b { color: var(--ink); font-weight: 600; max-inline-size: 22ch; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
@media (max-width: 560px) { .app-bar .container { gap: var(--space-1); } .org b { max-inline-size: 13ch; } .hide-xs { display: none !important; } }
.avatar { inline-size: 30px; block-size: 30px; border-radius: 50%; display: grid; place-items: center; background: var(--brand); color: var(--brand-ink); font-size: 12px; font-weight: 700; border: 0; cursor: pointer; }
.app-tabs { background: var(--surface); border-block-end: 1px solid var(--line); }
.app-tabs [role="tablist"] { display: flex; gap: var(--space-5); overflow-x: auto; scrollbar-width: none; }
.app-tabs [role="tab"] { position: relative; border: 0; background: none; padding: 0; min-block-size: 44px; font-size: 14.5px; font-weight: 500; color: var(--ink-2); cursor: pointer; flex: none; }
.app-tabs [role="tab"]:hover { color: var(--ink); }
.app-tabs [role="tab"][aria-selected="true"] { color: var(--ink); }
.app-tabs [role="tab"][aria-selected="true"]::after { content: ""; position: absolute; inset-inline: 0; inset-block-end: -1px; block-size: 2px; background: var(--ink); }
.page-header { display: flex; flex-wrap: wrap; align-items: flex-end; justify-content: space-between; gap: var(--space-4); padding-block: var(--space-7) var(--space-5); }
.page-header h1 { font-size: 30px; font-weight: 600; letter-spacing: -.025em; }
:lang(fa) .page-header h1 { letter-spacing: 0; }
.page-header p { color: var(--ink-2); margin-block-start: 4px; }
.toolbar { display: flex; flex-wrap: wrap; gap: var(--space-2); align-items: center; margin-block-end: var(--space-3); }
.search { position: relative; flex: 1 1 280px; max-inline-size: 520px; }
.search .ti { position: absolute; inset-inline-start: 11px; inset-block-start: 50%; transform: translateY(-50%); color: var(--ink-3); }
.search .input { padding-inline-start: 36px; min-block-size: var(--control-h); font-size: 14px; }
.filter-select { min-block-size: var(--control-h); inline-size: auto; font-size: 14px; padding-block: 5px; }

/* dense table */
.table-card { background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius-lg); overflow: hidden; }
.table-scroll { position: relative; overflow-x: auto; }
.data-table { inline-size: 100%; border-collapse: collapse; font-size: 14px; }
.data-table th { text-align: start; font: 500 11px/1 var(--font-mono); text-transform: uppercase; letter-spacing: .06em; color: var(--ink-3); padding: 12px var(--space-4); border-block-end: 1px solid var(--line); background: var(--surface-2); white-space: nowrap; }
:lang(fa) .data-table th { font: 600 12.5px/1 var(--font-sans); letter-spacing: 0; text-transform: none; }
.data-table th button { all: unset; cursor: pointer; }
.data-table th[aria-sort="ascending"] button::after { content: " ↑"; }
.data-table th[aria-sort="descending"] button::after { content: " ↓"; }
.data-table td { padding: 10px var(--space-4); border-block-end: 1px solid var(--line); vertical-align: middle; }
.data-table tbody tr:last-child td { border-block-end: 0; }
.data-table tbody tr:hover { background: var(--surface-2); }
.data-table tbody tr[data-href] { cursor: pointer; }
.cell-main { display: grid; line-height: 1.35; }
.cell-main b { font-weight: 600; white-space: nowrap; }
.cell-main small { color: var(--ink-3); font-size: 12.5px; }
.tags { display: flex; flex-wrap: wrap; gap: 4px; }
.tag { font: 500 11.5px/1 var(--font-mono); padding: 5px 7px; border-radius: var(--radius-pill); border: 1px solid var(--line-2); color: var(--ink-2); white-space: nowrap; direction: ltr; }
.addr { display: inline-flex; align-items: center; gap: 6px; font: 13px var(--font-mono); direction: ltr; }
.addr button { border: 0; background: none; color: var(--ink-3); padding: 2px; cursor: pointer; opacity: 0; border-radius: 4px; }
tr:hover .addr button, .addr button:focus-visible { opacity: 1; }
.addr button:hover { color: var(--ink); background: var(--surface-3); }
.status { display: inline-flex; align-items: center; gap: 7px; font-size: 13.5px; white-space: nowrap; }
.status::before { content: ""; inline-size: 7px; block-size: 7px; border-radius: 50%; background: var(--ink-3); }
.status.is-on::before { background: var(--success); box-shadow: 0 0 0 3px var(--success-soft); }
.status.is-warn::before { background: var(--warning); }
.status.is-off { color: var(--ink-3); }
.badge { display: inline-flex; align-items: center; gap: 5px; font: 500 11px/1 var(--font-mono); text-transform: uppercase; letter-spacing: .05em; padding: 5px 7px; border-radius: var(--radius-sm); background: var(--surface-3); color: var(--ink-2); white-space: nowrap; }
:lang(fa) .badge { font: 600 12px/1 var(--font-sans); letter-spacing: 0; text-transform: none; }
.badge-accent { background: var(--brand-soft); color: var(--brand-strong); }
.badge-ok { background: var(--success-soft); color: var(--success); }
.badge-warn { background: var(--warning-soft); color: var(--warning); }
.badge-bad { background: var(--danger-soft); color: var(--danger); }
.row-menu { position: relative; }
.menu { position: absolute; inset-inline-end: 0; inset-block-start: calc(100% + 4px); min-inline-size: 200px; padding: 6px; background: var(--surface); border-radius: 12px; box-shadow: var(--shadow-2); display: none; z-index: 40; }
.menu[data-open] { display: block; }
.menu button, .menu a { display: flex; align-items: center; gap: 10px; inline-size: 100%; text-align: start; padding: 8px 10px; border: 0; background: none; border-radius: 8px; font-size: 14px; cursor: pointer; text-decoration: none; }
.menu button:hover, .menu a:hover { background: var(--surface-3); }
.menu .danger { color: var(--danger); }
.menu hr { border: 0; border-block-start: 1px solid var(--line); margin: 6px 0; }
.table-foot { display: flex; justify-content: space-between; align-items: center; gap: var(--space-3); padding: 10px var(--space-4); border-block-start: 1px solid var(--line); font-size: 13px; color: var(--ink-3); background: var(--surface-2); }

/* cards for app */
.card { background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius-lg); }
.card-pad { padding: var(--space-6); }
.card-head { display: flex; justify-content: space-between; align-items: baseline; gap: var(--space-3); padding: var(--space-5) var(--space-6) 0; }
.card-head h2 { font-size: 16px; font-weight: 600; }
.kv { display: grid; grid-template-columns: max-content 1fr; gap: 10px var(--space-5); margin: 0; font-size: 14px; }
.kv dt { color: var(--ink-3); }
.kv dd { margin: 0; }
.alert { display: grid; grid-template-columns: auto 1fr auto; gap: var(--space-4); align-items: start; padding: var(--space-4) var(--space-5); border-block-end: 1px solid var(--line); }
.alert:last-child { border: 0; }
.alert .sev { inline-size: 10px; block-size: 10px; border-radius: 3px; margin-block-start: 6px; background: var(--ink-3); }
.alert .sev.high { background: var(--danger); }
.alert .sev.med { background: var(--warning); }
.alert time { font: 12px var(--font-mono); color: var(--ink-3); white-space: nowrap; }

/* drawer */
dialog.drawer { margin: 0; margin-inline-start: auto; block-size: 100dvh; max-block-size: 100dvh; inline-size: min(440px, 100vw); border: 0; padding: 0; background: var(--surface); color: var(--ink); box-shadow: var(--shadow-3); }
dialog.drawer::backdrop { background: var(--overlay); }
dialog.drawer[open] { animation: drawer-in var(--dur-3) var(--ease); }
@keyframes drawer-in { from { transform: translateX(24px); opacity: 0; } }
[dir="rtl"] dialog.drawer[open] { animation-name: drawer-in-rtl; }
@keyframes drawer-in-rtl { from { transform: translateX(-24px); opacity: 0; } }
.drawer-head { display: flex; align-items: center; justify-content: space-between; gap: var(--space-3); padding: var(--space-5) var(--space-6); border-block-end: 1px solid var(--line); }
.drawer-body { padding: var(--space-6); display: grid; gap: var(--space-6); }
dialog.modal { border: 0; border-radius: var(--radius-lg); padding: 0; inline-size: min(460px, calc(100vw - 32px)); background: var(--surface); color: var(--ink); box-shadow: var(--shadow-3); }
dialog.modal::backdrop { background: var(--overlay); }

/* charts & toasts */
.tf-chart .c-grid { stroke: var(--chart-grid); }
.tf-chart .c-axis { fill: var(--chart-axis); font: 11px var(--font-mono); }
:lang(fa) .tf-chart .c-axis { font-family: var(--font-sans); }
.tf-chart .c-guide { stroke: var(--ink-3); stroke-dasharray: 2 3; }
.chart-tip { background: var(--surface-ink); color: var(--ink-inverse); border-radius: 8px; padding: 8px 10px; font: 12px var(--font-mono); display: grid; gap: 3px; }
.chart-tip span { display: flex; gap: 6px; align-items: center; }
.chart-tip i { inline-size: 8px; block-size: 8px; border-radius: 50%; }
.legend { display: flex; gap: var(--space-4); list-style: none; padding: 0; margin: 0; font-size: 13px; color: var(--ink-2); }
.legend li { display: inline-flex; align-items: center; gap: 6px; }
.legend i { inline-size: 10px; block-size: 2px; background: var(--c); }
.toast { background: var(--surface-ink); color: var(--ink-inverse); padding: 11px 14px; border-radius: 10px; font-size: 14px; box-shadow: var(--shadow-2); animation: toast-in var(--dur-3) var(--ease); }
.toast.is-out { opacity: 0; transition: opacity var(--dur-2); }
@keyframes toast-in { from { opacity: 0; transform: translateY(8px); } }

/* footer */
.site-footer { border-block-start: 1px solid var(--line); padding-block: var(--space-9) var(--space-7); font-size: 14px; }
.footer-grid { display: grid; grid-template-columns: 1.5fr repeat(4, 1fr); gap: var(--space-6); }
.footer-grid h4 { font: 500 11.5px var(--font-mono); text-transform: uppercase; letter-spacing: .07em; color: var(--ink-3); margin-block-end: var(--space-3); }
:lang(fa) .footer-grid h4 { font: 600 13px var(--font-sans); text-transform: none; letter-spacing: 0; }
.footer-grid ul { list-style: none; padding: 0; margin: 0; display: grid; gap: 8px; }
.footer-grid a { text-decoration: none; color: var(--ink-2); }
.footer-grid a:hover { color: var(--ink); }
@media (max-width: 860px) { .footer-grid { grid-template-columns: 1fr 1fr; } }

.tf-chart .c-track { stroke: var(--surface-3); }
.tf-chart .c-center { position: absolute; inset: 0; display: grid; place-items: center; text-align: center; font: 600 20px var(--font-display); }