@font-face {
  font-family: 'Anton';
  font-style: normal;
  font-weight: 400;
  font-display: swap;
  src: url('./fonts/anton-latin-ext.woff2') format('woff2');
  unicode-range:
    U+0100-02BA, U+02BD-02C5, U+02C7-02CC, U+02CE-02D7, U+02DD-02FF, U+0304,
    U+0308, U+0329, U+1D00-1DBF, U+1E00-1E9F, U+1EF2-1EFF, U+2020, U+20A0-20AB,
    U+20AD-20C0, U+2113, U+2C60-2C7F, U+A720-A7FF;
}

@font-face {
  font-family: 'Anton';
  font-style: normal;
  font-weight: 400;
  font-display: swap;
  src: url('./fonts/anton-latin.woff2') format('woff2');
  unicode-range:
    U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC,
    U+0304, U+0308, U+0329, U+2000-206F, U+20AC, U+2122, U+2191, U+2193, U+2212,
    U+2215, U+FEFF, U+FFFD;
}

@font-face {
  font-family: 'Outfit';
  font-style: normal;
  font-weight: 300 700;
  font-display: swap;
  src: url('./fonts/outfit-latin-ext.woff2') format('woff2');
  unicode-range:
    U+0100-02BA, U+02BD-02C5, U+02C7-02CC, U+02CE-02D7, U+02DD-02FF, U+0304,
    U+0308, U+0329, U+1D00-1DBF, U+1E00-1E9F, U+1EF2-1EFF, U+2020, U+20A0-20AB,
    U+20AD-20C0, U+2113, U+2C60-2C7F, U+A720-A7FF;
}

@font-face {
  font-family: 'Outfit';
  font-style: normal;
  font-weight: 300 700;
  font-display: swap;
  src: url('./fonts/outfit-latin.woff2') format('woff2');
  unicode-range:
    U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC,
    U+0304, U+0308, U+0329, U+2000-206F, U+20AC, U+2122, U+2191, U+2193, U+2212,
    U+2215, U+FEFF, U+FFFD;
}

@font-face {
  font-family: 'JetBrains Mono';
  font-style: normal;
  font-weight: 400 700;
  font-display: swap;
  src: url('./fonts/jetbrains-mono-latin-ext.woff2') format('woff2');
  unicode-range:
    U+0100-02BA, U+02BD-02C5, U+02C7-02CC, U+02CE-02D7, U+02DD-02FF, U+0304,
    U+0308, U+0329, U+1D00-1DBF, U+1E00-1E9F, U+1EF2-1EFF, U+2020, U+20A0-20AB,
    U+20AD-20C0, U+2113, U+2C60-2C7F, U+A720-A7FF;
}

@font-face {
  font-family: 'JetBrains Mono';
  font-style: normal;
  font-weight: 400 700;
  font-display: swap;
  src: url('./fonts/jetbrains-mono-latin.woff2') format('woff2');
  unicode-range:
    U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC,
    U+0304, U+0308, U+0329, U+2000-206F, U+20AC, U+2122, U+2191, U+2193, U+2212,
    U+2215, U+FEFF, U+FFFD;
}

*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

:root {
  --bg: #080809;
  --surface: #0f0f12;
  --surface2: #161619;
  --border: #252529;
  --accent: #f0a500;
  --accent2: #ff6b35;
  --accent-glow: rgba(240, 165, 0, 0.15);
  --text: #e2e2e8;
  --muted: #a3a3b4;
  --green: #22c55e;
  --cyan: #06b6d4;
  --red: #ef4444;
  --font-head: 'Anton', sans-serif;
  --font-body: 'Outfit', sans-serif;
  --font-mono: 'JetBrains Mono', monospace;
  --radius: 4px;
  --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}
html {
  scroll-behavior: smooth;
}
body {
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-body);
  min-height: 100vh;
  overflow-x: hidden;
}
body::before {
  content: '';
  position: fixed;
  inset: 0;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)' opacity='0.03'/%3E%3C/svg%3E");
  pointer-events: none;
  z-index: 0;
}

/* HEADER */
header {
  position: relative;
  padding: 60px 24px 48px;
  text-align: center;
  border-bottom: 1px solid var(--border);
  overflow: hidden;
}
header::before {
  content: '';
  position: absolute;
  top: -120px;
  left: 50%;
  transform: translateX(-50%);
  width: 600px;
  height: 300px;
  background: radial-gradient(
    ellipse,
    rgba(240, 165, 0, 0.08) 0%,
    transparent 70%
  );
  pointer-events: none;
}
.header-label {
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 4px;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 16px;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 12px;
}
.header-label::before,
.header-label::after {
  content: '';
  width: 40px;
  height: 1px;
  background: var(--accent);
  opacity: 0.5;
}
header h1 {
  font-family: var(--font-head);
  font-size: clamp(42px, 8vw, 88px);
  letter-spacing: 2px;
  line-height: 1;
  background: linear-gradient(135deg, #fff 30%, var(--accent) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  margin-bottom: 16px;
}
header p {
  color: var(--muted);
  font-size: 15px;
  max-width: 480px;
  margin: 0 auto 32px;
  line-height: 1.7;
  font-weight: 300;
}
.progress-bar-wrap {
  max-width: 500px;
  margin: 0 auto;
}
.progress-info {
  display: flex;
  justify-content: space-between;
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--muted);
  margin-bottom: 8px;
}
.progress-track {
  height: 3px;
  background: var(--border);
  border-radius: 2px;
  overflow: hidden;
}
.progress-fill {
  height: 100%;
  width: 0%;
  background: linear-gradient(90deg, var(--accent), var(--accent2));
  border-radius: 2px;
  transition: width 0.6s cubic-bezier(0.4, 0, 0.2, 1);
}

/* STATS */
.stats-row {
  display: flex;
  justify-content: center;
  gap: 40px;
  padding: 20px 24px;
  border-bottom: 1px solid var(--border);
  flex-wrap: wrap;
}
.stat {
  text-align: center;
}
.stat-val {
  font-family: var(--font-head);
  font-size: 28px;
  letter-spacing: 1px;
  color: var(--accent);
  line-height: 1;
}
.stat-label {
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 2px;
  color: var(--muted);
  text-transform: uppercase;
  margin-top: 4px;
}

/* TOOLBAR */
.toolbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 24px;
  border-bottom: 1px solid var(--border);
  gap: 12px;
  flex-wrap: wrap;
  position: sticky;
  top: 0;
  background: rgba(8, 8, 9, 0.95);
  backdrop-filter: blur(12px);
  z-index: 100;
}
.toolbar-title {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--muted);
  letter-spacing: 2px;
  text-transform: uppercase;
}
.toolbar-actions {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
  align-items: center;
}

/* SEARCH */
.search-wrapper {
  position: relative;
  margin-right: 8px;
}
.search-input {
  width: 180px;
  padding: 7px 32px 7px 34px;
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  color: var(--text);
  font-family: var(--font-body);
  font-size: 13px;
  outline: none;
  transition: all 0.2s;
}
.search-input:focus {
  background: rgba(255, 255, 255, 0.05);
  border-color: rgba(240, 165, 0, 0.3);
  box-shadow: 0 0 0 3px rgba(240, 165, 0, 0.08);
  width: 220px;
}
.search-input::placeholder {
  color: var(--muted);
  opacity: 0.5;
}
.search-icon {
  position: absolute;
  left: 10px;
  top: 50%;
  transform: translateY(-50%);
  color: var(--muted);
  opacity: 0.4;
  pointer-events: none;
}
.search-clear {
  position: absolute;
  right: 6px;
  top: 50%;
  transform: translateY(-50%);
  width: 22px;
  height: 22px;
  padding: 0;
  background: transparent;
  border: none;
  border-radius: 50%;
  color: var(--muted);
  cursor: pointer;
  display: none;
  align-items: center;
  justify-content: center;
  transition: all 0.2s;
  opacity: 0.6;
}
.search-clear:hover {
  background: rgba(255, 255, 255, 0.08);
  opacity: 1;
  color: var(--text);
}
.search-clear:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 1px;
}
.search-wrapper.has-value .search-clear {
  display: flex;
}
.btn {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 1px;
  padding: 7px 14px;
  border-radius: var(--radius);
  border: 1px solid var(--border);
  background: transparent;
  color: var(--muted);
  cursor: pointer;
  transition: var(--transition);
  text-transform: uppercase;
}
.btn:hover {
  border-color: var(--accent);
  color: var(--accent);
  background: var(--accent-glow);
}
.btn-toggle-all {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  inline-size: 188px;
  white-space: nowrap;
  border-color: rgba(6, 182, 212, 0.35);
  color: var(--cyan);
  background: rgba(6, 182, 212, 0.08);
  box-shadow: inset 0 0 0 1px rgba(6, 182, 212, 0.15);
}
.btn-toggle-all:hover {
  border-color: rgba(6, 182, 212, 0.55);
  color: #67e8f9;
  background: rgba(6, 182, 212, 0.14);
}
.btn-toggle-all .btn-toggle-icon {
  width: 16px;
  height: 16px;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}
.btn-toggle-all .btn-toggle-icon svg {
  width: 16px;
  height: 16px;
  transition: transform var(--transition);
}
.btn-toggle-all.active {
  border-color: rgba(34, 197, 94, 0.45);
  color: var(--green);
  background: rgba(34, 197, 94, 0.08);
  box-shadow: inset 0 0 0 1px rgba(34, 197, 94, 0.18);
}
.btn-toggle-all.active:hover {
  border-color: rgba(34, 197, 94, 0.6);
  background: rgba(34, 197, 94, 0.14);
}
.btn-toggle-all.active .btn-toggle-icon svg {
  transform: rotate(180deg);
}
.filters {
  display: flex;
  gap: 6px;
  flex-wrap: wrap;
}
.filter-chip {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 1px;
  padding: 7px 14px;
  border-radius: 2px;
  border: 1px solid var(--border);
  background: transparent;
  color: var(--muted);
  cursor: pointer;
  transition: var(--transition);
  text-transform: uppercase;
}
.filter-chip:hover,
.filter-chip.active {
  border-color: var(--accent);
  color: var(--accent);
  background: var(--accent-glow);
}

/* MAIN */
main {
  max-width: 1190px;
  margin: 0 auto;
  padding: 32px 16px 16px;
  position: relative;
  z-index: 1;
}

/* STEP CARDS */
.steps-list {
  display: flex;
  flex-direction: column;
  gap: 4px;
}
.step-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  transition: border-color var(--transition);
}
.step-card:hover {
  border-color: #3a3a40;
}
.step-card.open {
  border-color: rgba(240, 165, 0, 0.3);
}
.step-card.done .step-header {
  opacity: 0.6;
}
.step-header {
  display: grid;
  grid-template-columns: 72px 1fr auto auto;
  align-items: stretch;
  cursor: pointer;
  user-select: none;
  transition: background var(--transition);
  width: 100%;
  border: 0;
  background: transparent;
  color: inherit;
  font: inherit;
  text-align: left;
  padding: 0;
}
.step-header:hover {
  background: rgba(255, 255, 255, 0.02);
}
.step-header:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: -2px;
}
.step-num {
  font-family: var(--font-head);
  font-size: 32px;
  letter-spacing: 1px;
  color: var(--accent);
  text-align: center;
  border-right: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: color var(--transition);
  min-height: 64px;
}
.step-card.done .step-num {
  color: var(--green);
}
.step-info {
  padding: 14px 18px;
  display: flex;
  flex-direction: column;
  justify-content: center;
}
.step-info-top {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 4px;
}
.step-name {
  font-size: 15px;
  font-weight: 600;
  color: var(--text);
  letter-spacing: 0.3px;
  line-height: 1.3;
}
.step-meta {
  display: flex;
  gap: 8px;
  margin-top: 5px;
  flex-wrap: wrap;
}
.tag {
  font-family: var(--font-mono);
  font-size: 9px;
  letter-spacing: 1.5px;
  text-transform: uppercase;
  padding: 2px 7px;
  border-radius: 2px;
  border: 1px solid;
}
.tag-hw {
  color: var(--cyan);
  border-color: rgba(6, 182, 212, 0.3);
  background: rgba(6, 182, 212, 0.05);
}
.tag-sw {
  color: #a78bfa;
  border-color: rgba(167, 139, 250, 0.3);
  background: rgba(167, 139, 250, 0.05);
}
.tag-other {
  color: #f59e0b;
  border-color: rgba(245, 158, 11, 0.35);
  background: rgba(245, 158, 11, 0.08);
}
.tag-priority-1 {
  color: var(--accent);
  border-color: rgba(240, 165, 0, 0.3);
  background: rgba(240, 165, 0, 0.05);
}
.step-price {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--muted);
  padding: 14px 14px 14px 0;
  white-space: nowrap;
  display: flex;
  align-items: center;
}
.step-price span {
  color: var(--green);
  font-weight: 700;
}
.step-toggle {
  width: 52px;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 14px;
  border-left: 1px solid var(--border);
}
.toggle-icon {
  width: 27px;
  height: 27px;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: var(--transition);
  flex-shrink: 0;
  color: var(--muted);
}
.toggle-icon svg {
  width: 24px;
  height: 24px;
  transition: transform var(--transition);
}
.step-card.open .toggle-icon {
  color: var(--accent);
}
.step-card.open .toggle-icon svg {
  transform: rotate(180deg);
}
.step-body {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.55s cubic-bezier(0.4, 0, 0.2, 1);
}
.step-card.open .step-body {
  max-height: 1500px;
}
.step-body-inner {
  border-top: 1px solid var(--border);
  padding: 22px;
}
.content-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 14px;
}
.content-full {
  grid-column: 1/-1;
}
.step-image {
  grid-column: 1/-1;
  height: 225px;
  border-radius: var(--radius);
  overflow: hidden;
  position: relative;
  border: 1px solid var(--border);
  cursor: zoom-in;
}
.step-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  filter: brightness(0.7) saturate(0.8);
  transition: filter 0.4s;
}
.step-image:hover img {
  filter: brightness(0.85) saturate(1);
}
.step-image-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(to right, rgba(8, 8, 9, 0.6) 0%, transparent 60%);
  pointer-events: none;
}
.step-image-cta {
  position: absolute;
  right: 10px;
  bottom: 10px;
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 1px;
  color: #f7f7fb;
  text-transform: uppercase;
  border: 1px solid rgba(255, 255, 255, 0.25);
  background: rgba(8, 8, 9, 0.45);
  backdrop-filter: blur(6px);
  padding: 5px 9px;
  border-radius: 999px;
  pointer-events: none;
  transition: var(--transition);
}
.step-image:hover .step-image-cta {
  background: rgba(8, 8, 9, 0.62);
  border-color: rgba(255, 255, 255, 0.4);
}
.desc-block {
  background: var(--surface2);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 13px 15px;
}
.block-label {
  font-family: var(--font-mono);
  font-size: 9px;
  letter-spacing: 3px;
  text-transform: uppercase;
  color: var(--muted);
  margin-bottom: 9px;
  display: flex;
  align-items: center;
  gap: 8px;
}
.block-label::after {
  content: '';
  flex: 1;
  height: 1px;
  background: var(--border);
}
.desc-block p {
  font-size: 14px;
  line-height: 1.75;
  color: #b0b0be;
  font-weight: 300;
}
.hw-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 5px;
}
.hw-list li {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  font-family: var(--font-mono);
  font-size: 12px;
  line-height: 1.5;
  color: #9898a8;
  padding: 6px 10px;
  border-radius: var(--radius);
  background: rgba(255, 255, 255, 0.02);
  border: 1px solid transparent;
  transition: border-color var(--transition);
}
.hw-list li:hover {
  border-color: var(--border);
}
.hw-list li .dot {
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background: var(--accent);
  flex-shrink: 0;
  margin-top: 5px;
}
.hw-list li .dot.sw {
  background: #a78bfa;
}
.hw-list li strong {
  color: var(--text);
  font-weight: 500;
}
.price-block {
  background: var(--surface2);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 13px 15px;
  display: flex;
  flex-direction: column;
  gap: 6px;
}
.price-main {
  font-family: var(--font-head);
  font-size: 32px;
  letter-spacing: 1px;
  color: var(--green);
  line-height: 1;
}
.price-note {
  font-size: 12px;
  color: var(--muted);
  line-height: 1.5;
}
.alt-block {
  display: flex;
  flex-direction: column;
  gap: 7px;
}
.alt-item {
  background: var(--surface2);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 10px 12px;
  display: flex;
  gap: 11px;
  align-items: flex-start;
}
.alt-num {
  font-family: var(--font-head);
  font-size: 20px;
  color: var(--muted);
  line-height: 1;
  flex-shrink: 0;
  width: 22px;
}
.alt-info .alt-name {
  font-size: 13px;
  font-weight: 600;
  color: var(--text);
  margin-bottom: 3px;
}
.alt-info .alt-desc {
  font-size: 12px;
  color: var(--muted);
  line-height: 1.5;
}
.tip-block {
  background: linear-gradient(
    135deg,
    rgba(240, 165, 0, 0.06),
    rgba(255, 107, 53, 0.04)
  );
  border: 1px solid rgba(240, 165, 0, 0.2);
  border-radius: var(--radius);
  padding: 12px 14px;
  display: flex;
  gap: 11px;
  align-items: flex-start;
}
.tip-icon {
  font-size: 16px;
  flex-shrink: 0;
  margin-top: 2px;
}
.tip-text {
  font-size: 13px;
  color: #d4c08a;
  line-height: 1.65;
}
.tip-text strong {
  color: var(--accent);
  font-weight: 600;
}
.done-btn {
  display: flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 1px;
  text-transform: uppercase;
  color: var(--muted);
  background: transparent;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 8px 14px;
  cursor: pointer;
  transition: var(--transition);
  margin-top: 8px;
}
.done-btn:hover {
  border-color: var(--green);
  color: var(--green);
}
.step-card.done .done-btn {
  border-color: var(--green);
  color: var(--green);
  background: rgba(34, 197, 94, 0.05);
}
.led {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--border);
  flex-shrink: 0;
  transition: var(--transition);
}
.step-card.done .step-header .led {
  background: var(--green);
  box-shadow: 0 0 6px var(--green);
}
.step-card.open .step-header .led {
  background: var(--accent);
  box-shadow: 0 0 6px var(--accent);
}

/* COST FOOTER */
.cost-footer {
  margin-top: 32px;
  background: var(--surface);
  border: 1px solid rgba(240, 165, 0, 0.2);
  border-radius: var(--radius);
  padding: 22px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 16px;
}
.cost-footer-label {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 3px;
  text-transform: uppercase;
  color: var(--muted);
  margin-bottom: 6px;
}
.cost-total {
  font-family: var(--font-head);
  font-size: 44px;
  letter-spacing: 2px;
  background: linear-gradient(135deg, var(--green), #86efac);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  line-height: 1;
}
.cost-meta {
  font-size: 12px;
  color: var(--muted);
  margin-top: 6px;
}
.cost-breakdown {
  display: flex;
  flex-direction: column;
  gap: 5px;
  font-family: var(--font-mono);
  font-size: 11px;
}
.cost-row {
  display: flex;
  gap: 16px;
  align-items: center;
  justify-content: space-between;
  color: var(--muted);
  min-width: 220px;
}
.cost-row .cr-name {
  color: #7a7a8a;
}
.cost-row .cr-val {
  color: var(--text);
}

/* EXPORT/IMPORT */
.io-section {
  margin-top: 16px;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--surface);
  overflow: hidden;
}
.io-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 20px;
  cursor: pointer;
  border: 0;
  border-bottom: 1px solid transparent;
  transition: var(--transition);
  user-select: none;
  width: 100%;
  background: transparent;
  color: inherit;
  font: inherit;
  text-align: left;
}
.io-header:hover {
  background: rgba(255, 255, 255, 0.02);
}
.io-header:focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: -2px;
}
.io-section.open .io-header {
  border-bottom-color: var(--border);
}
.io-header-left {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-wrap: wrap;
}
.io-title {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 3px;
  text-transform: uppercase;
  color: var(--muted);
}
.io-badge {
  font-family: var(--font-mono);
  font-size: 9px;
  letter-spacing: 1px;
  padding: 2px 8px;
  border-radius: 2px;
  border: 1px solid rgba(6, 182, 212, 0.3);
  color: var(--cyan);
  background: rgba(6, 182, 212, 0.05);
  text-transform: uppercase;
}
.io-toggle-icon {
  width: 24px;
  height: 24px;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: var(--transition);
  color: var(--muted);
  flex-shrink: 0;
}
.io-section.open .io-toggle-icon {
  color: var(--cyan);
}
.io-toggle-icon svg {
  width: 24px;
  height: 24px;
  transition: transform var(--transition);
}
.io-section.open .io-toggle-icon svg {
  transform: rotate(180deg);
}
.io-body {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.45s cubic-bezier(0.4, 0, 0.2, 1);
}
.io-section.open .io-body {
  max-height: 800px;
}
.io-body-inner {
  padding: 20px;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}
.io-col {
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.io-col-title {
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 2px;
  text-transform: uppercase;
  color: var(--muted);
  display: flex;
  align-items: center;
  gap: 8px;
}
.io-col-title::after {
  content: '';
  flex: 1;
  height: 1px;
  background: var(--border);
}
.io-textarea {
  width: 100%;
  height: 155px;
  background: var(--surface2);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  color: var(--text);
  font-family: var(--font-mono);
  font-size: 11px;
  line-height: 1.6;
  padding: 11px;
  resize: vertical;
  outline: none;
  transition: border-color var(--transition);
}
.io-textarea:focus {
  border-color: rgba(6, 182, 212, 0.4);
}
.io-textarea::placeholder {
  color: var(--muted);
}
.io-actions {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}
.io-btn {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 1px;
  padding: 7px 14px;
  border-radius: var(--radius);
  border: 1px solid;
  cursor: pointer;
  transition: var(--transition);
  text-transform: uppercase;
  display: flex;
  align-items: center;
  gap: 5px;
}
.io-btn-export {
  border-color: rgba(240, 165, 0, 0.4);
  color: var(--accent);
  background: rgba(240, 165, 0, 0.05);
}
.io-btn-export:hover {
  background: rgba(240, 165, 0, 0.12);
}
.io-btn-import {
  border-color: rgba(34, 197, 94, 0.4);
  color: var(--green);
  background: rgba(34, 197, 94, 0.05);
}
.io-btn-import:hover {
  background: rgba(34, 197, 94, 0.12);
}
.io-btn-download {
  border-color: rgba(6, 182, 212, 0.4);
  color: var(--cyan);
  background: rgba(6, 182, 212, 0.05);
}
.io-btn-download:hover {
  background: rgba(6, 182, 212, 0.12);
}
.io-btn-clear {
  border-color: rgba(239, 68, 68, 0.35);
  color: var(--red);
  background: rgba(239, 68, 68, 0.04);
}
.io-btn-clear:hover {
  background: rgba(239, 68, 68, 0.1);
}
.io-btn-copy {
  border-color: var(--border);
  color: var(--muted);
  background: transparent;
}
.io-btn-copy:hover {
  border-color: var(--muted);
  color: var(--text);
}
.io-status {
  font-family: var(--font-mono);
  font-size: 11px;
  padding: 8px 12px;
  border-radius: var(--radius);
  border: 1px solid;
  display: none;
  align-items: center;
  gap: 8px;
}
.io-status.success {
  border-color: rgba(34, 197, 94, 0.3);
  color: var(--green);
  background: rgba(34, 197, 94, 0.06);
  display: flex;
}
.io-status.error {
  border-color: rgba(239, 68, 68, 0.3);
  color: var(--red);
  background: rgba(239, 68, 68, 0.06);
  display: flex;
}
.io-info {
  font-size: 12px;
  color: var(--muted);
  line-height: 1.6;
  padding: 9px 11px;
  background: rgba(255, 255, 255, 0.02);
  border: 1px solid var(--border);
  border-radius: var(--radius);
}
.file-input-label {
  color: var(--cyan);
  cursor: pointer;
  text-decoration: underline;
}
.file-input-label:hover {
  color: #67e8f9;
}
.ls-indicator {
  display: flex;
  align-items: center;
  gap: 6px;
  font-family: var(--font-mono);
  font-size: 10px;
  color: var(--muted);
  padding: 5px 10px;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: rgba(255, 255, 255, 0.01);
}
.ls-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--green);
  box-shadow: 0 0 5px var(--green);
  animation: blink 2s infinite;
}
@keyframes blink {
  0%,
  100% {
    opacity: 1;
  }
  50% {
    opacity: 0.3;
  }
}

/* DEV CLEAR BUTTON */
.dev-clear-btn {
  position: fixed;
  top: 12px;
  right: 12px;
  z-index: 340;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 1px;
  text-transform: uppercase;
  padding: 7px 12px;
  border-radius: var(--radius);
  border: 1px solid rgba(239, 68, 68, 0.45);
  background: rgba(239, 68, 68, 0.12);
  color: #fca5a5;
  cursor: pointer;
  transition: var(--transition);
}
.dev-clear-btn:hover {
  border-color: rgba(239, 68, 68, 0.75);
  background: rgba(239, 68, 68, 0.2);
  color: #fecaca;
}
.dev-clear-btn:focus-visible {
  outline: 2px solid var(--red);
  outline-offset: 2px;
}

/* MOBILE OPTIMIZATIONS */
@media (max-width: 768px) {
  header {
    padding: 40px 20px 32px;
  }
  header h1 {
    font-size: clamp(36px, 10vw, 56px);
  }
  header p {
    font-size: 14px;
  }

  .stats-row {
    gap: 24px;
    padding: 16px 20px;
  }
  .stat-val {
    font-size: 24px;
  }

  .toolbar {
    padding: 12px 16px;
    flex-direction: column;
    align-items: stretch;
    gap: 10px;
  }
  .toolbar-title {
    margin-bottom: 8px;
  }
  .toolbar-actions {
    flex-direction: column;
    width: 100%;
  }
  .search-wrapper {
    width: 100%;
    margin-right: 0;
    margin-bottom: 8px;
  }
  .search-input {
    width: 100%;
    padding-right: 32px;
  }
  .search-input:focus {
    width: 100%;
  }
  .filters {
    width: 100%;
    overflow-x: auto;
    display: flex;
    gap: 6px;
    padding-bottom: 4px;
  }
  .filter-chip {
    flex-shrink: 0;
  }
  .btn-toggle-all {
    width: 100%;
  }

  .step-card {
    margin: 12px;
  }
  .step-header {
    padding: 14px;
  }
  .step-num {
    font-size: 18px;
    width: 36px;
    height: 36px;
  }
  .step-name {
    font-size: 15px;
  }
  .step-price {
    display: none;
  }
  .step-body-inner {
    padding: 16px;
  }
  .content-grid {
    grid-template-columns: 1fr;
  }

  .cost-footer {
    padding: 20px 16px;
  }
  .cost-total {
    font-size: 32px;
  }

  .io-body-inner {
    flex-direction: column;
  }
  .io-col {
    width: 100%;
  }

  /* Touch feedback */
  .step-card {
    transition: transform 0.2s;
  }
  .step-card:active {
    transform: scale(0.98);
  }

  /* PWA install button mobile position */
  .pwa-install-btn {
    bottom: auto !important;
    top: 20px !important;
    left: 50% !important;
    right: auto !important;
    transform: translateX(-50%);
  }

  /* Dev button mobile */
  .dev-clear-btn {
    top: auto;
    bottom: 12px;
    right: 12px;
  }
}

/* Extra small devices */
@media (max-width: 480px) {
  header h1 {
    font-size: 32px;
  }
  .stat-val {
    font-size: 20px;
  }
  .step-num {
    font-size: 16px;
    width: 32px;
    height: 32px;
  }
  .step-name {
    font-size: 14px;
  }
}

/* Safe area insets for iPhone X+ */
@supports (padding: max(0px)) {
  header {
    padding-top: max(60px, env(safe-area-inset-top));
  }
  .toolbar {
    top: env(safe-area-inset-top);
  }
  .cost-footer {
    padding-bottom: max(20px, env(safe-area-inset-bottom));
  }
}

/* FOOTER */
.footer {
  text-align: center;
  font-size: 12px;
  color: var(--muted);
  padding: 30px 0 20px 0;
}

/* LIGHTBOX */
body.lightbox-open {
  overflow: hidden;
}
.lightbox {
  position: fixed;
  inset: 0;
  z-index: 250;
  display: grid;
  place-items: center;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.28s ease;
}
.lightbox.open {
  opacity: 1;
  pointer-events: auto;
}
.lightbox-backdrop {
  position: absolute;
  inset: 0;
  background: radial-gradient(
    circle at 50% 10%,
    rgba(240, 165, 0, 0.1),
    rgba(8, 8, 9, 0.92) 42%,
    rgba(6, 6, 8, 0.98) 100%
  );
  backdrop-filter: blur(10px);
}
.lightbox-dialog {
  position: relative;
  width: min(1100px, 92vw);
  margin: 0;
  border: 1px solid rgba(255, 255, 255, 0.16);
  border-radius: 16px;
  overflow: hidden;
  background: linear-gradient(
    160deg,
    rgba(18, 18, 24, 0.98),
    rgba(10, 10, 14, 0.98)
  );
  box-shadow: 0 26px 80px rgba(0, 0, 0, 0.65);
  transform: translateY(16px) scale(0.985);
  transition: transform 0.28s cubic-bezier(0.2, 0.7, 0.2, 1);
}
.lightbox.open .lightbox-dialog {
  transform: translateY(0) scale(1);
}
.lightbox-img {
  display: block;
  width: 100%;
  max-height: 82vh;
  object-fit: contain;
  background: #070709;
}
.lightbox-caption {
  min-height: 44px;
  font-size: 13px;
  color: #cfd0d8;
  padding: 12px 16px 14px;
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  background: linear-gradient(
    to right,
    rgba(255, 255, 255, 0.03),
    rgba(255, 255, 255, 0.01)
  );
}
.lightbox-close {
  position: absolute;
  top: 12px;
  right: 12px;
  width: 34px;
  height: 34px;
  border-radius: 50%;
  border: 1px solid rgba(255, 255, 255, 0.35);
  background: rgba(8, 8, 9, 0.62);
  color: #f4f4f8;
  font-size: 16px;
  cursor: pointer;
  transition: var(--transition);
  display: flex;
  align-items: center;
  justify-content: center;
}
.lightbox-close:hover {
  border-color: #ffffff;
  background: rgba(8, 8, 9, 0.85);
}
.lightbox-close:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}

/* RESPONSIVE */
@media (max-width: 640px) {
  .content-grid,
  .io-body-inner {
    grid-template-columns: 1fr;
  }
  .step-header {
    grid-template-columns: 56px 1fr auto;
  }
  .step-price {
    display: none;
  }
  .step-num {
    font-size: 24px;
  }
  .step-name {
    font-size: 14px;
  }
  header h1 {
    font-size: 42px;
  }
  .stats-row {
    gap: 24px;
  }
}

/* ANIMATIONS */
@keyframes fadeIn {
  from {
    opacity: 0;
    transform: translateY(10px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}
.step-card {
  animation: fadeIn 0.35s ease both;
}
.step-card:nth-child(1) {
  animation-delay: 0.04s;
}
.step-card:nth-child(2) {
  animation-delay: 0.08s;
}
.step-card:nth-child(3) {
  animation-delay: 0.12s;
}
.step-card:nth-child(4) {
  animation-delay: 0.16s;
}
.step-card:nth-child(5) {
  animation-delay: 0.2s;
}
.step-card:nth-child(6) {
  animation-delay: 0.24s;
}
.step-card:nth-child(7) {
  animation-delay: 0.28s;
}
.step-card:nth-child(8) {
  animation-delay: 0.32s;
}
.step-card:nth-child(9) {
  animation-delay: 0.36s;
}
.step-card:nth-child(10) {
  animation-delay: 0.4s;
}
.step-card:nth-child(11) {
  animation-delay: 0.44s;
}
.step-card:nth-child(12) {
  animation-delay: 0.48s;
}
.step-card:nth-child(13) {
  animation-delay: 0.52s;
}
.step-card:nth-child(14) {
  animation-delay: 0.56s;
}
.step-card:nth-child(15) {
  animation-delay: 0.6s;
}
.step-card:nth-child(16) {
  animation-delay: 0.64s;
}

/* PWA install button floating position (#320 — was inline style.cssText) */
.pwa-install-btn--floating {
  position: fixed;
  bottom: 20px;
  right: 20px;
  padding: 12px 20px;
  background: var(--accent);
  color: var(--bg);
  border: none;
  border-radius: 8px;
  font-family: var(--font-body);
  font-weight: 600;
  cursor: pointer;
  z-index: 1000;
  box-shadow: 0 4px 12px rgba(240, 165, 0, 0.3);
  transition: all 0.3s;
}

/* Cost-breakdown invested row (#321 — was inline style="..." in innerHTML) */
.cost-row--invested {
  border-top: 1px solid #252529;
  padding-top: 5px;
  margin-top: 2px;
}
.cr-val--green {
  color: var(--green);
}

/* a11y skip-link (#326): off-screen until focused */
.skip-link {
  position: absolute;
  top: -9999px;
  left: 0;
  z-index: 10000;
  padding: 0.75rem 1rem;
  background: var(--accent);
  color: var(--bg);
  text-decoration: none;
  border-radius: 0 0 6px 0;
  font-weight: 600;
}
.skip-link:focus {
  top: 0;
  outline: 2px solid var(--bg);
  outline-offset: 2px;
}