/* ============================================================
   itt! Probador — web app tool · mobile-first · itt brand
   ============================================================ */

:root {
  /* itt! brand */
  --red:        #ED1C24;
  --red-dark:   #C9151C;
  --red-soft:   #FCE9EA;
  --black:      #181818;
  --ink:        #181818;
  --ink-soft:   #4A4A4A;
  --gray:       #9A9A9A;
  --gray-2:     #C9C9C7;
  --line:       #E6E6E3;
  --line-2:     #EFEEEC;
  --paper:      #FAFAF8;
  --surface:    #FFFFFF;
  --bg:         #FFFFFF;
  --fg:         #181818;
  --fg-muted:   #5A5A58;

  /* tweakable accent intensity (multiplier of red usage) */
  --accent:        var(--red);
  --accent-soft:   var(--red-soft);

  /* type stack */
  --display: "Archivo Black", "Helvetica Neue", Arial Black, sans-serif;
  --sans:    "Archivo", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  --mono:    "JetBrains Mono", ui-monospace, Menlo, monospace;

  /* button shape (tweakable) */
  --btn-radius: 4px;

  /* spacing tokens */
  --pad-screen-x: 20px;
  --pad-screen-y: 24px;

  --shadow-sm:   0 1px 2px rgba(24,24,24,.06);
  --shadow-md:   0 2px 8px rgba(24,24,24,.08), 0 12px 24px rgba(24,24,24,.06);
  --shadow-lg:   0 4px 24px rgba(24,24,24,.10), 0 24px 60px rgba(24,24,24,.10);
}

/* tweaks: button shape */
[data-btn="sharp"] { --btn-radius: 2px; }
[data-btn="soft"]  { --btn-radius: 10px; }
[data-btn="pill"]  { --btn-radius: 999px; }

/* tweaks: red intensity — how aggressively red is applied */
[data-red="subtle"] {
  --accent: #181818;          /* primary becomes black, red used only for tiny accents */
  --accent-soft: #f3f3f1;
}
[data-red="medium"] {
  --accent: var(--red);
}
[data-red="bold"] {
  --accent: var(--red);
}

/* tweaks: catalog density */
[data-density="compact"] { --grid-cols-mobile: 2; --grid-cols-desktop: 4; --grid-gap: 8px; }
[data-density="regular"] { --grid-cols-mobile: 2; --grid-cols-desktop: 3; --grid-gap: 14px; }
[data-density="comfy"]   { --grid-cols-mobile: 1; --grid-cols-desktop: 2; --grid-gap: 22px; }

* { box-sizing: border-box; }

html, body, #root { height: 100%; margin: 0; }

body {
  background: var(--bg);
  color: var(--fg);
  font-family: var(--sans);
  font-size: 15px;
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

button { font-family: inherit; cursor: pointer; }
input, select, textarea { font-family: inherit; }
a { color: inherit; text-decoration: none; }

/* ============================================================
   App shell — full-bleed app
   ============================================================ */
.app {
  min-height: 100vh;
  min-height: 100dvh;
  display: flex;
  flex-direction: column;
  background: var(--bg);
  position: relative;
}

.app-body {
  flex: 1;
  display: flex;
  flex-direction: column;
  position: relative;
  overflow: hidden;
}

/* ============================================================
   Header — compact, app-like
   ============================================================ */
.appbar {
  position: sticky;
  top: 0;
  z-index: 30;
  background: var(--bg);
  border-bottom: 1px solid var(--line);
  padding: 12px 16px;
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: center;
  gap: 12px;
}
.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  cursor: pointer;
  user-select: none;
}
.brand-logo { height: 26px; width: auto; display: block; }
.brand-label {
  font-family: var(--sans);
  font-size: 10px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--gray);
  border-left: 1px solid var(--line);
  padding-left: 10px;
  font-weight: 500;
}

.appbar-actions { display: flex; gap: 6px; align-items: center; }

.icon-btn {
  width: 36px; height: 36px;
  border-radius: 50%;
  background: transparent;
  border: 1px solid transparent;
  display: inline-flex; align-items: center; justify-content: center;
  color: var(--ink);
  transition: background .15s, border-color .15s;
}
.icon-btn:hover { background: var(--paper); border-color: var(--line); }
.icon-btn svg { width: 18px; height: 18px; }

/* ============================================================
   Stepper — centered in appbar (desktop) / below (mobile)
   ============================================================ */
.stepper {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
}
.step-pip {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--gray);
  background: transparent;
  border: none;
  cursor: pointer;
  padding: 4px 6px;
}
.step-pip .num {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 22px; height: 22px;
  border-radius: 50%;
  background: var(--paper);
  color: var(--gray);
  font-family: var(--display);
  font-size: 10px;
  border: 1px solid var(--line);
  transition: background .2s, color .2s, border-color .2s;
}
.step-pip.is-active .num { background: var(--accent); color: #fff; border-color: var(--accent); }
.step-pip.is-active { color: var(--ink); }
.step-pip.is-done .num { background: var(--ink); color: #fff; border-color: var(--ink); }
.step-pip.is-done { color: var(--ink-soft); }
.step-pip:disabled { cursor: default; }

.step-bar {
  width: 24px;
  height: 1px;
  background: var(--line);
  transition: background .3s;
}
.step-bar.is-done { background: var(--ink); }

.step-pip .label {
  display: none;
}
@media (min-width: 720px) {
  .step-pip .label { display: inline; }
  .step-bar { width: 40px; }
}

/* ============================================================
   Step transitions
   ============================================================ */
.step-wrap {
  flex: 1;
  display: flex;
  flex-direction: column;
  animation: stepIn .42s cubic-bezier(.2,.7,.2,1);
  position: relative;
}
@keyframes stepIn {
  from { opacity: 0; transform: translate3d(24px, 0, 0); }
  to   { opacity: 1; transform: translate3d(0,0,0); }
}

/* ============================================================
   Reusable
   ============================================================ */
.eyebrow {
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--gray);
  display: inline-flex;
  align-items: center;
  gap: 8px;
}
.eyebrow .dot {
  width: 6px; height: 6px; border-radius: 50%; background: var(--accent);
}
.eyebrow .dot.gray { background: var(--gray); }

.h-display {
  font-family: var(--display);
  font-weight: 900;
  font-size: clamp(28px, 6.5vw, 44px);
  line-height: 1;
  letter-spacing: -0.025em;
  margin: 0;
  text-transform: lowercase;
  color: var(--ink);
}
.h-display .red { color: var(--accent); }
.h-display .underline {
  background-image: linear-gradient(var(--accent), var(--accent));
  background-position: 0 100%;
  background-repeat: no-repeat;
  background-size: 100% 5px;
  padding-bottom: 2px;
}

.subhead {
  color: var(--fg-muted);
  font-size: 15px;
  max-width: 480px;
  text-wrap: pretty;
  margin: 12px 0 0;
}

/* ============================================================
   Buttons
   ============================================================ */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 14px 22px;
  border-radius: var(--btn-radius);
  border: 1px solid transparent;
  background: var(--ink);
  color: #fff;
  font-family: var(--sans);
  font-weight: 600;
  font-size: 14px;
  letter-spacing: 0.01em;
  transition: background .15s, transform .15s, border-color .15s, color .15s, box-shadow .15s;
  -webkit-tap-highlight-color: transparent;
}
.btn:hover { transform: translateY(-1px); }
.btn:active { transform: translateY(0); }
.btn:disabled { opacity: 0.4; pointer-events: none; }

.btn-primary {
  background: var(--accent);
  border-color: var(--accent);
}
.btn-primary:hover { background: var(--red-dark); border-color: var(--red-dark); }

.btn-ghost {
  background: transparent;
  color: var(--ink);
  border-color: var(--line);
}
.btn-ghost:hover { background: var(--paper); border-color: var(--ink); }

.btn-dark {
  background: var(--ink);
  border-color: var(--ink);
}

.btn-sm { padding: 10px 14px; font-size: 12.5px; }
.btn-lg { padding: 16px 26px; font-size: 15px; }
.btn-block { width: 100%; }

.btn .arrow { width: 16px; height: 16px; transition: transform .2s; }
.btn:hover .arrow { transform: translateX(3px); }

/* underlined link button */
.link-red {
  background: none;
  border: none;
  padding: 0;
  color: var(--accent);
  font-weight: 600;
  text-decoration: underline;
  text-underline-offset: 3px;
  text-decoration-thickness: 2px;
  cursor: pointer;
  font-size: inherit;
}

/* ============================================================
   STEP 1 — UPLOAD
   ============================================================ */
.step-upload {
  flex: 1;
  display: flex;
  flex-direction: column;
  padding: 24px var(--pad-screen-x) 120px;
  gap: 20px;
  max-width: 720px;
  width: 100%;
  margin: 0 auto;
}

.step-head { display: flex; flex-direction: column; gap: 8px; }

.dropzone {
  position: relative;
  background: var(--paper);
  border: 1.5px dashed var(--line);
  border-radius: 12px;
  padding: 40px 20px;
  text-align: center;
  transition: border-color .2s, background .2s;
  overflow: hidden;
}
.dropzone.is-drag { border-color: var(--accent); background: var(--accent-soft); }
.dropzone.has-image {
  padding: 0;
  border-style: solid;
  border-color: var(--line);
  background: var(--ink);
  min-height: 280px;
}
.dropzone img {
  width: 100%;
  display: block;
  object-fit: cover;
  max-height: 60vh;
}
.dropzone-inner { display: flex; flex-direction: column; align-items: center; gap: 14px; }
.dropzone-icon {
  width: 56px; height: 56px;
  border-radius: 50%;
  background: var(--surface);
  display: flex; align-items: center; justify-content: center;
  color: var(--accent);
  border: 1px solid var(--line);
}
.dropzone-icon svg { width: 22px; height: 22px; }
.dropzone-title {
  font-family: var(--display);
  font-size: 22px;
  line-height: 1.1;
  letter-spacing: -0.015em;
  margin: 0;
  text-transform: lowercase;
}
.dropzone-desc { color: var(--fg-muted); font-size: 13.5px; max-width: 320px; }
.dropzone-actions { display: flex; gap: 10px; flex-wrap: wrap; justify-content: center; }
.dropzone-or {
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--gray);
  padding: 0 4px;
  align-self: center;
}

.image-tag {
  position: absolute;
  top: 14px; left: 14px;
  background: #fff;
  color: var(--ink);
  padding: 5px 10px;
  border-radius: 999px;
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
}
.image-replace {
  position: absolute;
  top: 14px; right: 14px;
  display: inline-flex; align-items: center; gap: 6px;
  background: rgba(24,24,24,.78);
  color: #fff;
  padding: 7px 12px;
  border-radius: 999px;
  font-family: var(--mono);
  font-size: 10.5px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  border: none;
  cursor: pointer;
}
.image-replace:hover { background: var(--accent); }

.tips {
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.tip {
  display: flex;
  gap: 12px;
  padding: 14px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--surface);
  align-items: flex-start;
}
.tip-icon {
  width: 30px; height: 30px;
  border-radius: 50%;
  background: var(--accent-soft);
  color: var(--accent);
  flex: 0 0 30px;
  display: flex; align-items: center; justify-content: center;
}
.tip-icon svg { width: 14px; height: 14px; }
.tip-text { font-size: 13px; color: var(--fg-muted); line-height: 1.45; }
.tip-text strong { color: var(--ink); font-weight: 600; }

@media (min-width: 720px) {
  .step-upload { padding: 40px var(--pad-screen-x) 140px; max-width: 760px; }
  .tips { flex-direction: row; }
  .tip { flex: 1; }
}

/* ============================================================
   STEP 2 — CATALOG
   ============================================================ */
.step-catalog {
  display: flex;
  flex-direction: column;
  padding: 18px var(--pad-screen-x) 120px;
  gap: 16px;
  max-width: 1280px;
  width: 100%;
  margin: 0 auto;
}

.catalog-head {
  display: flex;
  flex-direction: column;
  gap: 14px;
}
.catalog-title-row {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 12px;
  flex-wrap: wrap;
}
.your-room-chip {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 6px 10px 6px 6px;
  border-radius: 999px;
  background: var(--paper);
  border: 1px solid var(--line);
  font-family: var(--mono);
  font-size: 10.5px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--ink-soft);
  cursor: pointer;
  flex-shrink: 0;
}
.your-room-chip img {
  width: 28px; height: 28px;
  border-radius: 50%;
  object-fit: cover;
}
.your-room-chip:hover { border-color: var(--ink); }

/* filter rail — horizontal scroll on mobile */
.filter-rail {
  display: flex;
  gap: 6px;
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  padding-bottom: 6px;
  margin: 0 calc(var(--pad-screen-x) * -1);
  padding-left: var(--pad-screen-x);
  padding-right: var(--pad-screen-x);
  scrollbar-width: none;
}
.filter-rail::-webkit-scrollbar { display: none; }

.chip {
  flex-shrink: 0;
  padding: 8px 14px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: var(--surface);
  font-family: var(--sans);
  font-weight: 500;
  font-size: 12.5px;
  color: var(--ink);
  cursor: pointer;
  transition: background .15s, color .15s, border-color .15s;
  white-space: nowrap;
  display: inline-flex;
  align-items: center;
  gap: 6px;
}
.chip:hover { border-color: var(--ink); }
.chip.is-active {
  background: var(--ink);
  color: #fff;
  border-color: var(--ink);
}
.chip .swatch {
  width: 14px; height: 14px; border-radius: 50%;
  border: 1px solid rgba(0,0,0,.1);
}

.filter-section { display: flex; flex-direction: column; gap: 8px; }
.filter-label {
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--gray);
}

/* grid */
.pattern-grid {
  display: grid;
  grid-template-columns: repeat(var(--grid-cols-mobile, 2), 1fr);
  gap: var(--grid-gap, 14px);
}
@media (min-width: 720px) {
  .pattern-grid {
    grid-template-columns: repeat(var(--grid-cols-desktop, 3), 1fr);
  }
}

.pattern-card {
  background: transparent;
  border: none;
  padding: 0;
  text-align: left;
  cursor: pointer;
  position: relative;
  -webkit-tap-highlight-color: transparent;
}
.pattern-card-image {
  aspect-ratio: 1;
  background: var(--paper);
  background-size: cover;
  background-position: center;
  border-radius: 6px;
  position: relative;
  overflow: hidden;
  transition: transform .3s ease;
}
.pattern-card:hover .pattern-card-image { transform: translateY(-2px); }
.pattern-card-image::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(0,0,0,0) 60%, rgba(0,0,0,.45) 100%);
  opacity: 0;
  transition: opacity .25s;
}
.pattern-card:hover .pattern-card-image::after { opacity: 1; }

.pattern-card-cta {
  position: absolute;
  left: 10px; bottom: 10px; right: 10px;
  background: var(--accent);
  color: #fff;
  font-family: var(--sans);
  font-weight: 600;
  font-size: 12px;
  letter-spacing: 0.02em;
  padding: 9px 12px;
  border-radius: var(--btn-radius);
  display: flex;
  align-items: center;
  justify-content: space-between;
  opacity: 0;
  transform: translateY(6px);
  transition: opacity .2s, transform .2s;
}
.pattern-card:hover .pattern-card-cta { opacity: 1; transform: translateY(0); }

.pattern-card-meta {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  margin-top: 10px;
  gap: 8px;
}
.pattern-card-name {
  font-family: var(--display);
  font-size: 15px;
  letter-spacing: -0.01em;
  line-height: 1;
  text-transform: lowercase;
  margin: 0;
  color: var(--ink);
}
.pattern-card-tag {
  font-family: var(--mono);
  font-size: 9.5px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--gray);
}
.pattern-card-price {
  font-family: var(--mono);
  font-size: 11px;
  color: var(--ink-soft);
}

.pattern-card.is-selected .pattern-card-image {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}

/* empty state */
.empty {
  padding: 40px 20px;
  text-align: center;
  color: var(--fg-muted);
  border: 1px dashed var(--line);
  border-radius: 8px;
}

/* ============================================================
   STEP 3 — RESULT
   ============================================================ */
.step-result {
  flex: 1;
  display: flex;
  flex-direction: column;
  padding: 18px var(--pad-screen-x) 140px;
  gap: 16px;
  max-width: 1280px;
  width: 100%;
  margin: 0 auto;
}

.result-head {
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
  gap: 12px;
  flex-wrap: wrap;
}

.result-stage {
  position: relative;
  border-radius: 8px;
  overflow: hidden;
  background: var(--ink);
  aspect-ratio: 4/3;
  user-select: none;
  box-shadow: var(--shadow-md);
  width: 100%;
}
@media (min-width: 720px) {
  .result-stage { aspect-ratio: 16/10; }
}

.r-img {
  position: absolute; inset: 0;
  width: 100%; height: 100%;
  object-fit: cover;
  pointer-events: none;
}
.r-clip {
  position: absolute; inset: 0;
  overflow: hidden;
}
.r-pattern {
  position: absolute; inset: 0;
  background-size: cover;
  background-position: center;
  mix-blend-mode: multiply;
  opacity: 0.92;
  -webkit-mask-image: var(--wall-mask);
  mask-image: var(--wall-mask);
  -webkit-mask-size: 100% 100%;
  mask-size: 100% 100%;
}
.r-slider {
  position: absolute;
  top: 0; bottom: 0;
  width: 2px;
  background: #fff;
  z-index: 5;
  cursor: ew-resize;
  box-shadow: 0 0 0 1px rgba(0,0,0,.15);
}
.r-slider-handle {
  position: absolute;
  top: 50%; left: 50%;
  transform: translate(-50%, -50%);
  width: 44px; height: 44px;
  background: #fff;
  border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  box-shadow: 0 6px 16px rgba(0,0,0,.2);
  color: var(--ink);
}
.r-tag {
  position: absolute;
  top: 14px;
  padding: 6px 12px;
  border-radius: 999px;
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  z-index: 4;
}
.r-tag.before { left: 14px; background: rgba(24,24,24,.75); color: #fff; }
.r-tag.after  { right: 14px; background: #fff; color: var(--ink); }

.result-info {
  display: grid;
  grid-template-columns: 1fr;
  gap: 16px;
}
@media (min-width: 880px) {
  .result-info { grid-template-columns: 1.2fr 1fr; }
}

.product-card {
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 20px;
  background: var(--surface);
}
.product-head {
  display: flex;
  gap: 14px;
  align-items: center;
}
.product-swatch {
  width: 60px; height: 60px;
  border-radius: 4px;
  background-size: cover;
  background-position: center;
  flex: 0 0 60px;
}
.product-name {
  font-family: var(--display);
  font-size: 24px;
  letter-spacing: -0.015em;
  line-height: 1;
  text-transform: lowercase;
  margin: 0;
}
.product-name .red { color: var(--accent); }
.product-price {
  font-family: var(--sans);
  font-size: 13px;
  color: var(--ink-soft);
  margin-top: 4px;
}
.product-price .red { color: var(--accent); font-weight: 600; }

.product-chips {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin: 14px 0;
}
.mini-chip {
  font-family: var(--mono);
  font-size: 9.5px;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  padding: 4px 9px;
  border: 1px solid var(--line);
  border-radius: 999px;
  color: var(--ink-soft);
}

.product-desc {
  font-size: 13.5px;
  color: var(--fg-muted);
  text-wrap: pretty;
  margin: 0 0 16px;
}

.actions-card {
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.action-row {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 14px 16px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--surface);
  cursor: pointer;
  text-align: left;
  color: var(--ink);
  transition: border-color .15s, background .15s;
}
.action-row:hover { border-color: var(--ink); }
.action-row .a-icon {
  width: 36px; height: 36px;
  border-radius: 50%;
  background: var(--accent-soft);
  color: var(--accent);
  display: flex; align-items: center; justify-content: center;
  flex: 0 0 36px;
}
.action-row .a-icon svg { width: 16px; height: 16px; }
.action-row.is-primary {
  background: var(--accent);
  color: #fff;
  border-color: var(--accent);
}
.action-row.is-primary .a-icon { background: rgba(255,255,255,.18); color: #fff; }
.action-row.is-primary:hover { background: var(--red-dark); border-color: var(--red-dark); }
.action-row .a-body { flex: 1; }
.action-row .a-title { font-weight: 600; font-size: 14px; }
.action-row .a-sub { font-size: 11.5px; opacity: 0.7; font-family: var(--mono); letter-spacing: 0.06em; text-transform: uppercase; }
.action-row .a-arrow { opacity: 0.4; transition: transform .15s; }
.action-row:hover .a-arrow { transform: translateX(3px); opacity: 0.7; }

.try-mini {
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  gap: 8px;
}
.try-mini-tile {
  aspect-ratio: 1;
  border-radius: 4px;
  background-size: cover;
  background-position: center;
  cursor: pointer;
  padding: 0;
  border: 2px solid transparent;
  transition: transform .15s, border-color .15s;
}
.try-mini-tile:hover { transform: scale(1.05); }
.try-mini-tile.is-active { border-color: var(--accent); }
@media (max-width: 480px) {
  .try-mini { grid-template-columns: repeat(4, 1fr); }
}

/* ============================================================
   PROCESSING overlay
   ============================================================ */
.processing-overlay {
  position: fixed;
  inset: 0;
  background: var(--bg);
  z-index: 50;
  display: flex;
  flex-direction: column;
  animation: stepIn .3s ease-out;
}
.processing-inner {
  flex: 1;
  display: flex;
  flex-direction: column;
  padding: 32px 20px;
  gap: 28px;
  max-width: 720px;
  width: 100%;
  margin: 0 auto;
  justify-content: center;
}
@media (min-width: 880px) {
  .processing-inner { padding: 60px 20px; gap: 40px; }
}

.process-preview {
  position: relative;
  border-radius: 8px;
  overflow: hidden;
  aspect-ratio: 4/3;
  background: var(--ink);
}
.process-preview img {
  width: 100%; height: 100%; object-fit: cover;
  filter: saturate(0.9);
}
.process-scan {
  position: absolute; inset: 0;
  background: linear-gradient(180deg, transparent 0%, rgba(237,28,36,.18) 50%, transparent 100%);
  background-size: 100% 22%;
  background-repeat: no-repeat;
  animation: scan 2s linear infinite;
}
@keyframes scan {
  0%   { background-position: 0 -20%; }
  100% { background-position: 0 120%; }
}
.process-grid {
  position: absolute; inset: 0;
  background-image:
    linear-gradient(rgba(255,255,255,.06) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,.06) 1px, transparent 1px);
  background-size: 28px 28px;
  mix-blend-mode: overlay;
}
.process-corners {
  position: absolute;
  inset: 16px;
  pointer-events: none;
}
.process-corners::before, .process-corners::after,
.process-corners > .c1, .process-corners > .c2 {
  content: "";
  position: absolute;
  width: 22px; height: 22px;
  border: 1.5px solid var(--accent);
}
.process-corners::before { top: 0; left: 0; border-right: 0; border-bottom: 0; }
.process-corners::after  { top: 0; right: 0; border-left: 0; border-bottom: 0; }
.process-corners > .c1   { bottom: 0; left: 0; border-right: 0; border-top: 0; }
.process-corners > .c2   { bottom: 0; right: 0; border-left: 0; border-top: 0; }

.process-text { display: flex; flex-direction: column; gap: 16px; }
.process-title {
  font-family: var(--display);
  font-size: clamp(28px, 6vw, 42px);
  line-height: 1;
  letter-spacing: -0.02em;
  margin: 0;
  text-transform: lowercase;
}
.process-title .red { color: var(--accent); }
.process-steps {
  display: flex;
  flex-direction: column;
  gap: 6px;
}
.process-step-item {
  display: flex; align-items: center; gap: 12px;
  padding: 10px 0;
  font-size: 14px;
  color: var(--gray);
  border-bottom: 1px solid var(--line-2);
}
.process-step-item:last-child { border-bottom: none; }
.process-step-item.is-active { color: var(--ink); font-weight: 500; }
.process-step-item.is-done   { color: var(--ink-soft); }
.process-step-item .num {
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: 0.16em;
  width: 22px;
}
.process-step-item .indicator { margin-left: auto; }
.spinner {
  width: 14px; height: 14px;
  border-radius: 50%;
  border: 2px solid var(--line);
  border-top-color: var(--accent);
  animation: spin 0.9s linear infinite;
}
@keyframes spin { to { transform: rotate(360deg); } }
.check { color: var(--accent); display: inline-flex; }

.process-progress {
  height: 2px;
  background: var(--line);
  overflow: hidden;
  border-radius: 2px;
}
.process-progress-bar {
  height: 100%;
  background: var(--accent);
  width: 0;
  transition: width .3s ease-out;
}

/* ============================================================
   Bottom action bar — sticky on mobile
   ============================================================ */
.actbar {
  position: fixed;
  bottom: 0; left: 0; right: 0;
  background: var(--bg);
  border-top: 1px solid var(--line);
  padding: 12px 16px;
  display: flex;
  gap: 10px;
  align-items: center;
  z-index: 25;
  padding-bottom: calc(12px + env(safe-area-inset-bottom));
}
.actbar .spacer { flex: 1; }
.actbar .btn { flex: 0 0 auto; }
.actbar .btn-block-mob { flex: 1; }
@media (min-width: 720px) {
  .actbar { padding: 14px 24px; }
  .actbar .btn-block-mob { flex: 0 0 auto; }
}

.actbar-info {
  font-family: var(--mono);
  font-size: 10.5px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--gray);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

/* ============================================================
   Help tooltip / drawer
   ============================================================ */
.sheet-backdrop {
  position: fixed; inset: 0;
  background: rgba(24,24,24,.4);
  z-index: 60;
  display: flex;
  align-items: flex-end;
  justify-content: center;
  animation: fadeIn .2s;
}
@keyframes fadeIn { from { opacity: 0; } to { opacity: 1; } }
.sheet {
  background: var(--bg);
  width: 100%;
  max-width: 540px;
  border-radius: 16px 16px 0 0;
  padding: 24px 20px 32px;
  animation: slideUp .25s cubic-bezier(.2,.7,.2,1);
}
@media (min-width: 720px) {
  .sheet { border-radius: 16px; margin-bottom: 5vh; }
}
@keyframes slideUp { from { transform: translateY(20px); opacity: 0; } to { transform: translateY(0); opacity: 1; } }
.sheet-head {
  display: flex; justify-content: space-between; align-items: center;
  margin-bottom: 14px;
}
.sheet-title {
  font-family: var(--display);
  font-size: 22px;
  letter-spacing: -0.01em;
  margin: 0;
  text-transform: lowercase;
}
.sheet-close { background: none; border: none; color: var(--ink); cursor: pointer; padding: 6px; display: flex; }

/* ============================================================
   Responsive tweaks
   ============================================================ */
@media (max-width: 480px) {
  .appbar { padding: 10px 14px; grid-template-columns: auto auto auto; gap: 8px; }
  .brand-label { display: none; }
  .step-pip .num { width: 20px; height: 20px; font-size: 9px; }
}