* {
  box-sizing: border-box;
}

:root {
  --bg: #f4f6f8;
  --card: #ffffff;
  --text: #17202a;
  --muted: #68737d;
  --line: #dfe5ea;
  --accent: #1769e0;
  --accent-dark: #0f53b7;
  --soft: #edf4ff;
  --danger: #b42318;
  --danger-bg: #fff1f0;
  --success: #137333;
  --shadow: 0 14px 40px rgba(23, 32, 42, 0.08);
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  line-height: 1.5;
}

.container {
  width: min(1080px, calc(100% - 32px));
  margin: 42px auto 70px;
}

.hero {
  margin-bottom: 24px;
}

.eyebrow {
  display: inline-block;
  margin-bottom: 6px;
  color: var(--accent);
  font-size: 0.76rem;
  font-weight: 800;
  letter-spacing: 0.14em;
}

h1,
h2,
h3,
p {
  margin-top: 0;
}

h1 {
  margin-bottom: 8px;
  font-size: clamp(2rem, 5vw, 3.2rem);
  line-height: 1.08;
}

.hero p {
  max-width: 700px;
  margin-bottom: 0;
  color: var(--muted);
  font-size: 1.05rem;
}

.card,
.result-card {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 20px;
  box-shadow: var(--shadow);
}

.card {
  padding: 30px;
}

section + section {
  margin-top: 30px;
  padding-top: 30px;
  border-top: 1px solid var(--line);
}

.section-title {
  display: flex;
  gap: 14px;
  align-items: flex-start;
  margin-bottom: 20px;
}

.section-title h2 {
  margin-bottom: 3px;
  font-size: 1.22rem;
}

.section-title p {
  margin-bottom: 0;
  color: var(--muted);
  font-size: 0.94rem;
}

.step {
  display: grid;
  flex: 0 0 34px;
  width: 34px;
  height: 34px;
  place-items: center;
  border-radius: 10px;
  background: var(--soft);
  color: var(--accent);
  font-weight: 800;
}

.grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 18px;
}

.grid.three {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.grid.single {
  grid-template-columns: minmax(0, 1fr);
  max-width: 520px;
}

.field {
  display: block;
}

.field > span {
  display: block;
  margin-bottom: 7px;
  font-size: 0.9rem;
  font-weight: 700;
}

input {
  width: 100%;
  min-width: 0;
  height: 46px;
  border: 1px solid #cdd5dc;
  border-radius: 10px;
  outline: none;
  background: #fff;
  color: var(--text);
  font: inherit;
  padding: 0 12px;
  transition: border-color 0.18s ease, box-shadow 0.18s ease;
}

input:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(23, 105, 224, 0.12);
}

.input-prefix,
.input-suffix {
  display: flex;
  align-items: center;
  border: 1px solid #cdd5dc;
  border-radius: 10px;
  background: #fff;
  overflow: hidden;
  transition: border-color 0.18s ease, box-shadow 0.18s ease;
}

.input-prefix:focus-within,
.input-suffix:focus-within {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(23, 105, 224, 0.12);
}

.input-prefix > span,
.input-suffix > span {
  flex: 0 0 auto;
  padding: 0 12px;
  color: var(--muted);
  font-size: 0.9rem;
  font-weight: 700;
}

.input-prefix input,
.input-suffix input {
  border: 0;
  border-radius: 0;
  box-shadow: none;
}

.input-prefix input:focus,
.input-suffix input:focus {
  box-shadow: none;
}

.nested {
  flex: 1;
  border: 0;
  border-radius: 0;
  box-shadow: none !important;
}

.parts-container {
  display: grid;
  gap: 12px;
}

.print-part {
  display: grid;
  grid-template-columns: minmax(180px, 1.5fr) minmax(115px, 0.65fr) minmax(110px, 0.6fr) minmax(110px, 0.6fr) auto;
  gap: 12px;
  align-items: end;
  padding: 16px;
  border: 1px solid var(--line);
  border-radius: 14px;
  background: #fafbfc;
}

.part-field > span {
  display: block;
  margin-bottom: 7px;
  color: var(--muted);
  font-size: 0.8rem;
  font-weight: 700;
}

.part-name {
  font-weight: 700;
}

.remove-part {
  width: 46px;
  height: 46px;
  min-height: 46px;
  padding: 0;
  border: 1px solid #ebc8c5;
  background: #fff;
  color: var(--danger);
  font-size: 1.15rem;
}

.remove-part:hover {
  background: var(--danger-bg);
}

.remove-part[hidden] {
  display: none;
}

.parts-actions {
  margin-top: 14px;
}

.add-part {
  min-height: 44px;
  padding: 0 16px;
  border: 1px solid #b9cef0;
  background: var(--soft);
  color: var(--accent);
}

.add-part:hover {
  background: #e1edff;
}

.fixed-consumption {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  margin-top: 16px;
  padding: 14px 16px;
  border-radius: 12px;
  background: #f7f9fb;
}

.fixed-consumption span {
  color: var(--muted);
  font-size: 0.9rem;
}

.fixed-consumption strong {
  color: var(--text);
}

.actions {
  display: flex;
  gap: 12px;
  margin-top: 30px;
}

button {
  min-height: 48px;
  border: 0;
  border-radius: 11px;
  padding: 0 22px;
  cursor: pointer;
  font: inherit;
  font-weight: 800;
}

.primary {
  background: var(--accent);
  color: #fff;
}

.primary:hover {
  background: var(--accent-dark);
}

.secondary {
  background: #eef1f4;
  color: var(--text);
}

.error {
  margin-top: 24px;
  border: 1px solid #f4b4ae;
  border-radius: 10px;
  background: var(--danger-bg);
  color: var(--danger);
  padding: 12px 14px;
  font-weight: 650;
}

.result-card {
  margin-top: 24px;
  padding: 30px;
}

.result-header {
  display: flex;
  justify-content: space-between;
  gap: 20px;
  align-items: flex-start;
}

.result-header h2 {
  margin-bottom: 0;
}

.suggested-price {
  min-width: 245px;
  border-radius: 16px;
  background: var(--soft);
  padding: 18px 20px;
  text-align: right;
}

.suggested-price span {
  display: block;
  color: var(--muted);
  font-size: 0.85rem;
  font-weight: 700;
}

.suggested-price strong {
  display: block;
  margin-top: 3px;
  color: var(--accent);
  font-size: 2rem;
  line-height: 1.1;
}

.parts-summary {
  margin-top: 24px;
}

.parts-summary-header {
  display: flex;
  justify-content: space-between;
  gap: 18px;
  align-items: center;
  padding-bottom: 10px;
  border-bottom: 1px solid var(--line);
}

.parts-summary-header h3 {
  margin-bottom: 0;
}

.parts-summary-header strong {
  color: var(--accent);
  font-size: 1.05rem;
}

.result-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 18px;
  margin-top: 18px;
}

.summary-box {
  border: 1px solid var(--line);
  border-radius: 14px;
  padding: 20px;
}

.summary-box h3 {
  margin-bottom: 12px;
  font-size: 1rem;
}

dl {
  margin: 0;
}

dl > div {
  display: flex;
  justify-content: space-between;
  gap: 18px;
  padding: 8px 0;
  color: var(--muted);
}

dt,
dd {
  margin: 0;
}

dd {
  color: var(--text);
  font-weight: 750;
  text-align: right;
}

dl .total {
  margin-top: 6px;
  padding-top: 13px;
  border-top: 1px solid var(--line);
  color: var(--text);
  font-weight: 800;
}

dl .total dd {
  color: var(--success);
}

.details {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 12px;
  margin-top: 18px;
}

.details > div {
  border-radius: 12px;
  background: #f7f9fb;
  padding: 14px;
}

.details span {
  display: block;
  margin-bottom: 3px;
  color: var(--muted);
  font-size: 0.8rem;
}

.details strong {
  font-size: 0.96rem;
}

.note {
  margin: 18px 0 0;
  color: var(--muted);
  font-size: 0.86rem;
}

@media (max-width: 820px) {
  .grid,
  .grid.three,
  .result-grid {
    grid-template-columns: 1fr;
  }

  .print-part {
    grid-template-columns: 1fr 1fr 1fr auto;
  }

  .print-part .part-name-field {
    grid-column: 1 / -1;
  }

  .details {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .result-header {
    flex-direction: column;
  }

  .suggested-price {
    width: 100%;
    text-align: left;
  }
}

@media (max-width: 520px) {
  .container {
    width: min(100% - 20px, 1080px);
    margin-top: 22px;
  }

  .card,
  .result-card {
    padding: 20px;
    border-radius: 15px;
  }

  .print-part {
    grid-template-columns: 1fr 1fr;
  }

  .print-part .part-name-field {
    grid-column: 1 / -1;
  }

  .print-part .part-grams-field {
    grid-column: 1 / -1;
  }

  .remove-part {
    width: 100%;
    grid-column: 1 / -1;
  }

  .actions {
    flex-direction: column;
  }

  button {
    width: 100%;
  }

  .details {
    grid-template-columns: 1fr;
  }

  .parts-summary-header {
    align-items: flex-start;
    flex-direction: column;
    gap: 4px;
  }
}


body.login-open {
  overflow: hidden;
}

.app-locked {
  visibility: hidden;
}

.login-gate {
  position: fixed;
  inset: 0;
  z-index: 9999;
  display: grid;
  place-items: center;
  min-height: 100dvh;
  padding: 20px;
  background:
    radial-gradient(circle at top left, rgba(23, 105, 224, 0.11), transparent 36%),
    var(--bg);
}

.login-gate[hidden] {
  display: none;
}

.login-card {
  width: min(100%, 430px);
  padding: 30px;
  border: 1px solid var(--line);
  border-radius: 20px;
  background: var(--card);
  box-shadow: var(--shadow);
}

.login-card h1 {
  margin-bottom: 8px;
  font-size: clamp(1.8rem, 7vw, 2.5rem);
}

.login-card p {
  margin-bottom: 22px;
  color: var(--muted);
}

.login-form {
  display: grid;
  gap: 16px;
}

.password-wrap {
  display: flex;
  align-items: stretch;
  border: 1px solid #cdd5dc;
  border-radius: 10px;
  overflow: hidden;
  background: #fff;
}

.password-wrap:focus-within {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(23, 105, 224, 0.12);
}

.password-wrap input {
  border: 0;
  border-radius: 0;
  box-shadow: none;
  min-width: 0;
}

.password-wrap input:focus {
  box-shadow: none;
}

.password-toggle {
  min-height: 46px;
  padding: 0 14px;
  border-radius: 0;
  background: #f3f6f9;
  color: var(--accent);
  font-size: 0.84rem;
}

.login-button {
  width: 100%;
}

.login-error {
  margin-top: -4px;
  border-radius: 9px;
  padding: 10px 12px;
  background: var(--danger-bg);
  color: var(--danger);
  font-size: 0.9rem;
  font-weight: 700;
}

.hero-with-actions {
  display: flex;
  justify-content: space-between;
  gap: 20px;
  align-items: flex-start;
}

.lock-button {
  flex: 0 0 auto;
  min-height: 40px;
  padding: 0 14px;
  border: 1px solid #cdd5dc;
  background: #fff;
  color: var(--muted);
  font-size: 0.85rem;
}

.lock-button:hover {
  background: #f7f9fb;
  color: var(--text);
}

@media (max-width: 700px) {
  body {
    background: #fff;
  }

  .container {
    width: 100%;
    margin: 0 auto;
    padding: 16px 12px 36px;
  }

  .hero {
    margin-bottom: 16px;
  }

  .hero-with-actions {
    gap: 12px;
  }

  .hero h1 {
    font-size: 1.8rem;
  }

  .hero p {
    font-size: 0.94rem;
  }

  .card,
  .result-card {
    border-radius: 14px;
    box-shadow: none;
  }

  .card {
    padding: 18px 14px;
  }

  .result-card {
    padding: 18px 14px;
  }

  section + section {
    margin-top: 24px;
    padding-top: 24px;
  }

  .section-title {
    gap: 10px;
  }

  .step {
    width: 32px;
    height: 32px;
    flex-basis: 32px;
  }

  .print-part {
    grid-template-columns: 1fr 1fr;
    gap: 10px;
    padding: 13px;
  }

  .print-part .part-name-field,
  .print-part .part-grams-field {
    grid-column: 1 / -1;
  }

  .remove-part {
    grid-column: 1 / -1;
    width: 100%;
  }

  .input-prefix,
  .input-suffix,
  input {
    min-height: 48px;
  }

  .parts-actions .add-part {
    width: 100%;
  }

  .fixed-consumption {
    align-items: center;
  }

  .actions {
    position: sticky;
    bottom: 8px;
    z-index: 20;
    padding: 8px;
    border: 1px solid var(--line);
    border-radius: 14px;
    background: rgba(255, 255, 255, 0.96);
    backdrop-filter: blur(8px);
  }

  .actions button {
    min-height: 50px;
  }

  .suggested-price strong {
    font-size: 1.75rem;
  }

  .login-card {
    padding: 24px 20px;
    border-radius: 16px;
  }
}

@media (max-width: 430px) {
  .hero-with-actions {
    flex-direction: column;
  }

  .lock-button {
    width: auto;
  }

  .print-part {
    grid-template-columns: 1fr 1fr;
  }

  .part-field > span {
    font-size: 0.76rem;
  }

  .input-prefix > span,
  .input-suffix > span {
    padding: 0 10px;
  }

  .parts-summary-header {
    gap: 6px;
  }

  dl > div {
    gap: 10px;
  }

  dt {
    max-width: 62%;
  }
}