:root {
  --ink: #172238;
  --muted: #6b7585;
  --paper: #f7faff;
  --panel: #ffffff;
  --line: #e1e9f3;
  --grid-line: #c3d0e0;
  --signal: #1b64d8;
  --signal-dark: #114899;
  --signal-pale: #edf5ff;
  --coral: #e26a4d;
  --group-1: #2563eb;
  --group-2: #008c95;
  --group-3: #7c3aed;
  --group-4: #d12c82;
  --group-5: #e05b28;
  --group-6: #2d9a63;
  --axis: #f0a202;
  --axis-deep: #9a6200;
  --shadow: 0 24px 70px rgb(22 58 107 / 10%);
  font-family: "Vazirmatn", "Noto Sans Arabic", "Geeza Pro", Tahoma, "Segoe UI", sans-serif;
  color: var(--ink);
  background: var(--paper);
}

* {
  box-sizing: border-box;
}

body {
  min-width: 320px;
  margin: 0;
  background:
    radial-gradient(circle at 10% 0%, rgb(211 232 255 / 48%), transparent 32rem),
    radial-gradient(circle at 92% 16%, rgb(239 222 255 / 38%), transparent 28rem),
    linear-gradient(145deg, #fbfdff 0%, var(--paper) 58%, #f4f8ff 100%);
}

button,
input,
select,
textarea {
  font: inherit;
}

button {
  cursor: pointer;
}

button:focus-visible,
input:focus-visible {
  outline: 3px solid rgb(27 100 216 / 32%);
  outline-offset: 3px;
}

.app-shell {
  width: min(1180px, calc(100% - 32px));
  margin: 0 auto;
  padding: 54px 0 28px;
}

.masthead {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 32px;
  margin-bottom: 28px;
}

.eyebrow,
.section-index,
.marker-seal small {
  margin: 0;
  color: var(--signal-dark);
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.08em;
}

h1,
h2,
p {
  margin-top: 0;
}

h1 {
  margin: 8px 0 6px;
  font-size: clamp(2rem, 5vw, 4.15rem);
  font-weight: 800;
  letter-spacing: -0.06em;
  line-height: 1;
}

h1 span {
  color: var(--signal);
}

.intro {
  max-width: 540px;
  margin-bottom: 0;
  color: var(--muted);
  font-size: 1rem;
  line-height: 1.9;
}

.marker-seal {
  display: grid;
  width: 110px;
  min-width: 110px;
  height: 110px;
  place-content: center;
  border: 1px solid var(--signal);
  border-radius: 50%;
  text-align: center;
  transform: rotate(-7deg);
}

.marker-seal span {
  color: var(--signal);
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  font-size: 2.75rem;
  font-weight: 800;
  line-height: 0.9;
}

.marker-seal small {
  margin-top: 6px;
  font-size: 0.55rem;
}

.workbench {
  display: block;
  overflow: hidden;
  border: 1px solid rgb(214 226 241 / 88%);
  border-radius: 20px;
  background: rgb(255 255 255 / 92%);
  box-shadow: var(--shadow);
}

.control-panel,
.grid-panel,
.readout {
  padding: 28px;
}

.control-panel {
  border-bottom: 1px solid var(--line);
}

.reference-panel {
  padding: 0;
}

.reference-summary {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  padding: 17px 28px;
  cursor: pointer;
  list-style: none;
  box-shadow: 0 8px 24px rgb(36 79 130 / 5%);
}

.reference-summary::-webkit-details-marker {
  display: none;
}

.reference-summary::after {
  flex: 0 0 auto;
  color: var(--signal);
  content: '＋';
  font-size: 1.1rem;
  font-weight: 800;
}

.reference-panel[open] .reference-summary {
  border-bottom: 1px solid var(--line);
}

.reference-panel[open] .reference-summary::after {
  content: '−';
}

.reference-summary .panel-heading {
  margin-bottom: 0;
}

.reference-summary .panel-heading h2 {
  font-size: 1.08rem;
}

.reference-summary-note {
  color: var(--muted);
  font-size: 0.74rem;
}

.reference-panel form {
  grid-template-columns: repeat(2, minmax(0, 1fr));
  max-width: 640px;
  margin-inline: auto;
  padding: 22px 28px 26px;
}

.reference-panel form .form-note,
.reference-panel form .form-actions,
.reference-panel form .form-message {
  grid-column: 1 / -1;
}

.panel-heading {
  margin-bottom: 24px;
}

.panel-heading h2,
.readout h2 {
  margin: 7px 0 0;
  font-size: 1.25rem;
  letter-spacing: -0.03em;
}

form {
  display: grid;
  gap: 17px;
}

label {
  display: grid;
  gap: 8px;
  color: var(--ink);
  font-size: 0.9rem;
  font-weight: 700;
}

input,
select {
  width: 100%;
  min-height: 46px;
  border: 1px solid var(--line);
  border-radius: 4px;
  padding: 0 10px;
  color: var(--ink);
  background: #fbfcff;
  direction: ltr;
  box-shadow: 0 8px 22px rgb(36 79 130 / 6%);
}

select {
  direction: rtl;
  cursor: pointer;
}

.form-note,
.form-message {
  margin: 0;
  color: var(--muted);
  font-size: 0.8rem;
  line-height: 1.8;
}

.form-message {
  min-height: 1.4em;
  color: var(--coral);
}

.form-actions {
  display: grid;
  gap: 9px;
}

.primary-action,
.secondary-action,
.copy-button {
  border: 1px solid transparent;
  border-radius: 4px;
  min-height: 44px;
  padding: 0 14px;
  font-weight: 750;
}

.primary-action {
  color: #fff;
  background: linear-gradient(135deg, #145dcc 0%, #4b8ff0 100%);
  box-shadow: 0 10px 22px rgb(27 100 216 / 18%);
}

.primary-action:hover {
  background: linear-gradient(135deg, #114899 0%, #3479df 100%);
}

.secondary-action,
.copy-button {
  color: var(--signal-dark);
  border-color: var(--line);
  background: #fff;
  box-shadow: 0 8px 20px rgb(36 79 130 / 6%);
}

.secondary-action:hover,
.copy-button:hover {
  border-color: var(--signal);
  background: var(--signal-pale);
}

.grid-panel {
  min-width: 0;
}

.grid-heading {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 16px;
}

.step-summary {
  margin: 2px 0 0;
  color: var(--signal-dark);
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  font-size: 0.73rem;
  line-height: 1.7;
  text-align: left;
}

.calendar-badge {
  display: inline-flex;
  align-items: center;
  min-height: 26px;
  border: 1px solid rgb(27 100 216 / 16%);
  border-radius: 999px;
  padding: 4px 9px;
  color: var(--signal-dark);
  background: linear-gradient(135deg, #f2f8ff 0%, #fbf7ff 100%);
  box-shadow: 0 7px 18px rgb(36 79 130 / 7%);
  font-size: 0.68rem;
  font-weight: 700;
}

.level-tools {
  display: grid;
  justify-items: end;
  gap: 8px;
}

.back-level {
  border: 0;
  border-bottom: 1px solid currentColor;
  padding: 2px 0;
  color: var(--signal-dark);
  background: transparent;
  font-size: 0.75rem;
  font-weight: 750;
}

.fractal-context {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  margin: -10px 0 10px;
  border-right: 3px solid var(--coral);
  padding: 7px 10px;
  background: #fff7f4;
}

.fractal-context p {
  margin: 0;
  font-size: 0.76rem;
}

#level-label {
  color: var(--coral);
  font-weight: 800;
}

#level-path {
  overflow: hidden;
  color: var(--muted);
  text-overflow: ellipsis;
  white-space: nowrap;
}

.grid-stage {
  position: relative;
  overflow: hidden;
  border: 1px solid rgb(225 233 243 / 76%);
  border-radius: 14px;
  background: linear-gradient(180deg, #ffffff 0%, #fafdff 100%);
  padding: 8px 0 0;
}

#time-grid {
  display: block;
  width: 100%;
  height: auto;
}

.grid-notes {
  position: absolute;
  top: 29%;
  left: 4.8%;
  right: 4.8%;
  z-index: 2;
  display: grid;
  grid-template-columns: repeat(13, minmax(0, 1fr));
  height: 29%;
  direction: ltr;
  pointer-events: none;
}

.grid-note {
  width: calc(100% - 8px);
  height: 100%;
  min-height: 0;
  margin: 0 4px;
  border: 1px dashed rgb(27 100 216 / 28%);
  border-radius: 8px;
  padding: 7px 8px;
  color: var(--ink);
  background: rgb(255 255 255 / 76%);
  box-shadow: 0 8px 18px rgb(34 73 123 / 7%);
  direction: rtl;
  line-height: 1.55;
  resize: none;
  pointer-events: auto;
}

.grid-note:focus {
  border-color: var(--signal);
  background: #fff;
  box-shadow: 0 0 0 3px rgb(27 100 216 / 12%);
  outline: none;
}

.grid-baseline {
  stroke: var(--ink);
  stroke-width: 1.4;
}

.grid-guide {
  stroke: var(--grid-line);
  stroke-dasharray: 3 7;
  stroke-width: 1;
}

.grid-boundary {
  stroke: var(--signal);
  stroke-width: 2.5;
  stroke-linecap: round;
}

.grid-boundary.is-anchor {
  stroke: var(--coral);
  stroke-width: 5;
}

.grid-interval {
  cursor: pointer;
  opacity: 0.22;
  transition: opacity 150ms ease;
}

.grid-interval:hover,
.grid-interval:focus {
  opacity: 0.44;
  outline: none;
}

.grid-interval.is-axis {
  opacity: 0.36;
}

.grid-interval.is-axis:hover,
.grid-interval.is-axis:focus {
  opacity: 0.58;
}

.grid-interval-number {
  pointer-events: none;
  fill: var(--ink);
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  font-size: 12px;
  font-weight: 800;
}

.grid-interval.is-axis + .grid-interval-number {
  fill: var(--axis-deep);
}

.grid-boundary[data-group="1"] { stroke: var(--group-1); }
.grid-boundary[data-group="2"] { stroke: var(--group-2); }
.grid-boundary[data-group="3"] { stroke: var(--group-3); }
.grid-boundary[data-group="4"] { stroke: var(--group-4); }
.grid-boundary[data-group="5"] { stroke: var(--group-5); }
.grid-boundary[data-group="6"] { stroke: var(--group-6); }

.grid-boundary.is-anchor { stroke: var(--coral); }

.grid-time-label {
  fill: var(--muted);
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  font-size: 10px;
  font-weight: 700;
}

.group-band {
  opacity: 0.94;
}

.group-band-label {
  pointer-events: none;
  fill: #fff;
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  font-size: 10px;
  font-weight: 800;
}

.grid-dot {
  fill: var(--panel);
  stroke: var(--signal);
  stroke-width: 2;
}

.grid-dot.is-anchor {
  fill: var(--coral);
  stroke: var(--coral);
}

.grid-note.is-axis {
  border-color: rgb(240 162 2 / 56%);
  box-shadow: 0 8px 18px rgb(154 98 0 / 12%);
}

.grid-number {
  fill: var(--muted);
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  font-size: 13px;
  font-weight: 700;
}

.grid-label {
  fill: var(--ink);
  font-family: Vazirmatn, Tahoma, sans-serif;
  font-size: 12px;
}

.anchor-caption {
  display: flex;
  justify-content: space-between;
  gap: 24px;
  margin-top: 7px;
  color: var(--muted);
  font-size: 0.78rem;
}

.anchor-caption strong {
  color: var(--coral);
}

.relation-section {
  margin-top: 20px;
  border: 1px solid rgb(214 226 241 / 88%);
  border-radius: 20px;
  padding: 28px;
  background: rgb(255 255 255 / 90%);
  box-shadow: var(--shadow);
}

.relation-heading,
.widget-heading {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 18px;
}

.relation-heading {
  margin-bottom: 20px;
}

.relation-heading h2,
.widget-heading h3 {
  margin: 7px 0 0;
  letter-spacing: -0.03em;
}

.relation-heading h2 {
  font-size: 1.35rem;
}

.relation-heading > p,
.widget-note {
  max-width: 430px;
  margin: 0;
  color: var(--muted);
  font-size: 0.78rem;
  line-height: 1.8;
}

.relation-widgets {
  display: grid;
  gap: 18px;
}

.relation-widget {
  border: 1px solid var(--line);
  border-radius: 16px;
  padding: 22px;
  background: linear-gradient(145deg, #fff 0%, #fbfdff 100%);
  box-shadow: 0 14px 34px rgb(45 84 132 / 6%);
}

.widget-kicker,
.widget-count,
.relation-role,
.pair-operator,
.mirror-pair-number {
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
}

.widget-kicker {
  color: var(--signal-dark);
  font-size: 0.66rem;
  font-weight: 800;
  letter-spacing: 0.08em;
}

.widget-heading h3 {
  font-size: 1.05rem;
}

.widget-count {
  border: 1px solid var(--line);
  border-radius: 999px;
  padding: 6px 10px;
  color: var(--muted);
  font-size: 0.67rem;
  white-space: nowrap;
}

.widget-note {
  margin: 10px 0 18px;
}

.relation-pairs {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
}

.relation-pair {
  position: relative;
  overflow: hidden;
  border: 1px solid var(--line);
  border-top: 4px solid var(--pair-color);
  border-radius: 12px;
  padding: 14px;
  background:
    radial-gradient(circle at 88% 0%, color-mix(in srgb, var(--pair-color) 15%, transparent), transparent 9rem),
    linear-gradient(145deg, #ffffff 0%, color-mix(in srgb, var(--pair-color) 4%, #fff) 100%);
  box-shadow: 0 16px 30px rgb(30 69 120 / 8%), inset 0 1px 0 rgb(255 255 255 / 96%);
}

.relation-lane {
  min-height: 72px;
}

.relation-lane + .relation-lane {
  border-top: 1px dashed var(--line);
  padding-top: 13px;
}

.relation-role {
  display: block;
  color: var(--muted);
  font-size: 0.62rem;
}

.relation-lane b {
  display: block;
  margin: 4px 0 7px;
  color: var(--pair-color);
  font-size: 0.95rem;
}

.relation-lane time,
.mirror-lane time {
  display: block;
  direction: ltr;
  color: var(--ink);
  font-size: 0.72rem;
  font-weight: 700;
  text-align: right;
}

.relation-lane,
.mirror-lane {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  grid-template-rows: auto 1fr;
  align-items: start;
  min-height: 104px;
}

.relation-lane time,
.mirror-lane time {
  grid-column: 1 / -1;
  grid-row: 1;
  justify-self: center;
  margin: 0;
  color: var(--muted);
  font-size: 0.63rem;
  font-weight: 600;
}

.relation-lane b,
.mirror-lane b {
  margin: 0;
}

.relation-content-slot {
  grid-column: 1 / -1;
  grid-row: 2;
  align-self: stretch;
  width: 100%;
  min-height: 30px;
  margin-top: 12px;
  border: 1px dashed color-mix(in srgb, var(--pair-color) 24%, var(--line));
  background: rgb(255 255 255 / 62%);
  padding: 7px 8px;
  color: var(--ink);
  direction: rtl;
  font-size: 0.76rem;
  line-height: 1.55;
  white-space: pre-wrap;
  overflow-wrap: anywhere;
}

.relation-content-slot[data-empty="true"] {
  color: transparent;
}

.relation-lane:last-child {
  grid-template-rows: 1fr auto;
  align-items: end;
}

.relation-lane:last-child time {
  grid-row: 2;
  align-self: end;
}

.relation-lane:last-child .relation-content-slot {
  grid-row: 1;
  margin: 0 0 12px;
}

.pair-operator {
  display: grid;
  width: 30px;
  height: 30px;
  margin: -4px auto;
  place-items: center;
  border: 1px solid var(--line);
  border-radius: 50%;
  color: var(--pair-color);
  background: #fff;
  box-shadow: 0 7px 16px rgb(34 73 123 / 10%);
  font-size: 0.78rem;
  font-weight: 900;
}

.mirror-widget-card {
  overflow: hidden;
}

.mirror-axis {
  margin: 14px 0 16px;
  border-right: 4px solid var(--axis);
  padding: 9px 12px;
  color: var(--ink);
  background: #fff8e8;
  font-size: 0.78rem;
}

.mirror-axis strong {
  color: var(--axis-deep);
}

.mirror-scroll {
  overflow-x: auto;
}

.mirror-strip {
  display: grid;
  grid-template-columns: repeat(6, minmax(124px, 1fr));
  min-width: 760px;
  direction: ltr;
}

.mirror-pair {
  border: 1px solid var(--line);
  border-left: 0;
  background:
    linear-gradient(180deg, rgb(255 255 255 / 94%), rgb(247 251 255 / 92%)),
    linear-gradient(135deg, color-mix(in srgb, var(--top-color) 8%, transparent), transparent);
  box-shadow: inset 0 1px 0 rgb(255 255 255 / 98%);
}

.mirror-pair:first-child {
  border-left: 1px solid var(--line);
}

.mirror-lane {
  min-height: 112px;
  padding: 10px;
  text-align: center;
}

.mirror-lane:last-child {
  grid-template-rows: 1fr auto;
  align-items: end;
}

.mirror-lane:last-child b {
  grid-row: 2;
  align-self: end;
}

.mirror-lane:last-child time {
  grid-column: 1 / -1;
  grid-row: 2;
  align-self: end;
}

.mirror-lane:last-child .relation-content-slot {
  grid-row: 1;
  margin: 0 0 12px;
}

.mirror-lane:first-child {
  border-bottom: 1px dashed var(--line);
  background:
    radial-gradient(circle at 50% 0%, color-mix(in srgb, var(--top-color) 14%, transparent), transparent 8rem),
    color-mix(in srgb, var(--top-color) 6%, #fff);
}

.mirror-lane:last-child {
  background:
    radial-gradient(circle at 50% 100%, color-mix(in srgb, var(--bottom-color) 14%, transparent), transparent 8rem),
    color-mix(in srgb, var(--bottom-color) 5%, #fff);
}

.mirror-pair-number {
  display: inline-block;
  margin-bottom: 8px;
  color: var(--ink);
  font-size: 0.69rem;
  font-weight: 850;
}

.mirror-lane time {
  font-size: 0.6rem;
  text-align: center;
}

.mirror-link {
  display: grid;
  height: 24px;
  place-items: center;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  color: var(--coral);
  background: #fff;
  font-size: 0.8rem;
  font-weight: 900;
}

.readout {
  margin-top: 20px;
  border-radius: 20px;
  border: 1px solid var(--line);
  background: rgb(255 255 255 / 75%);
}

.readout-heading {
  display: flex;
  align-items: end;
  justify-content: space-between;
  gap: 16px;
  margin-bottom: 20px;
}

.readout-help {
  margin: 0;
  color: var(--muted);
  font-size: 0.78rem;
}

.interval-list {
  display: grid;
  grid-template-columns: repeat(13, minmax(132px, 1fr));
  gap: 8px;
  overflow-x: auto;
  margin: 0;
  padding: 0;
  list-style: none;
}

.interval-list li {
  min-height: 88px;
  border-top: 3px solid var(--signal);
  padding: 10px 8px;
  background: #fff;
  box-shadow: 0 3px 9px rgb(22 39 67 / 4%);
}

.interval-list li[data-group="1"] { border-color: var(--group-1); }
.interval-list li[data-group="2"] { border-color: var(--group-2); }
.interval-list li[data-group="3"] { border-color: var(--group-3); }
.interval-list li[data-group="4"] { border-color: var(--group-4); }
.interval-list li[data-group="5"] { border-color: var(--group-5); }
.interval-list li[data-group="6"] { border-color: var(--group-6); }

.interval-button {
  width: 100%;
  border: 0;
  padding: 0;
  color: inherit;
  background: transparent;
  text-align: right;
}

.interval-list b,
.interval-list time,
.interval-list small {
  display: block;
}

.interval-list b {
  margin-bottom: 8px;
  color: var(--muted);
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  font-size: 0.7rem;
}

.interval-list time {
  direction: ltr;
  color: var(--ink);
  font-size: 0.72rem;
  font-weight: 700;
  text-align: left;
}

.interval-list small {
  margin-top: 7px;
  color: var(--muted);
  font-size: 0.66rem;
}

.copy-button {
  margin-top: 18px;
}

footer {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  padding: 18px 2px 0;
  color: var(--muted);
  font-size: 0.72rem;
}

@media (max-width: 760px) {
  .app-shell {
    width: min(100% - 24px, 1180px);
    padding-top: 28px;
  }

  .masthead {
    align-items: flex-start;
  }

  .marker-seal {
    width: 78px;
    min-width: 78px;
    height: 78px;
  }

  .marker-seal span {
    font-size: 2rem;
  }

  .workbench {
    display: block;
  }

  .fractal-context {
    align-items: flex-start;
    flex-direction: column;
  }

  .readout-heading {
    align-items: flex-start;
    flex-direction: column;
  }

  .relation-section {
    padding: 20px;
  }

  .relation-heading,
  .widget-heading {
    align-items: flex-start;
    flex-direction: column;
  }

  .relation-pairs {
    grid-template-columns: 1fr;
  }

  .reference-summary,
  .grid-panel,
  .readout {
    padding: 20px;
  }

  .reference-panel form {
    grid-template-columns: 1fr;
    padding: 20px;
  }

  .reference-summary-note {
    display: none;
  }

  footer {
    flex-direction: column;
  }
}

@media (prefers-reduced-motion: reduce) {
  * {
    scroll-behavior: auto !important;
    transition: none !important;
  }
}