:root {
  --bg: #07090d;
  --panel: #11141b;
  --panel-soft: #161c25;
  --panel-top: #3a404a;
  --text: #e7ecf6;
  --muted: #98a1b2;
  --line: #303747;
  --line-soft: #263041;
  --accent: #ff8a2a;
  --accent-soft: rgba(255, 138, 42, 0.22);
  --accent-strong: #e47412;
  --danger: #c64040;
  --radius: 12px;
  --radius-sm: 8px;
  --shadow: 0 26px 70px rgba(0, 0, 0, 0.5);
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: "Manrope", sans-serif;
  color: var(--text);
  background:
    radial-gradient(circle at 14% 0%, rgba(255, 138, 42, 0.14), transparent 34%),
    radial-gradient(circle at 84% 100%, rgba(38, 79, 182, 0.12), transparent 32%),
    linear-gradient(180deg, #05070b 0%, #080b10 100%);
  min-height: 100vh;
}

h1,
h2,
h3,
h4,
legend {
  font-family: "Space Grotesk", sans-serif;
}

.app-shell {
  width: min(1500px, 95vw);
  margin: 0 auto;
  padding: 2rem 0 2.6rem;
}

.hero {
  text-align: center;
  width: min(960px, 100%);
  margin: 0 auto 1.6rem;
}

.hero h1 {
  margin: 0;
  font-size: clamp(2.1rem, 4vw, 3.95rem);
  line-height: 1.03;
}

.hero p {
  color: var(--muted);
  margin: 0.65rem auto 0;
  line-height: 1.45;
  font-size: clamp(1rem, 1.13vw, 1.22rem);
}

.workspace {
  display: grid;
  grid-template-columns: minmax(560px, 1fr) minmax(560px, 1fr);
  gap: 0.9rem;
  align-items: start;
}

.feature-switch {
  display: flex;
  justify-content: center;
  gap: 0.62rem;
  margin: 0 0 1rem;
}

.feature-switch-btn {
  border: 1px solid #3e4859;
  background: #151b25;
  color: #d8e1f2;
  font: inherit;
  font-weight: 800;
  padding: 0.65rem 1rem;
  cursor: pointer;
  transition: 160ms ease;
}

.feature-switch-btn:hover {
  border-color: #59667d;
}

.feature-switch-btn.active {
  border-color: var(--accent);
  background: #4b2b12;
  color: #fff0e3;
}

.contract-feature {
  margin-top: 0;
}

.feature-header {
  margin: 0.2rem 0 0.8rem;
}

.feature-header h2 {
  margin: 0;
  font-size: clamp(1.65rem, 2.4vw, 2.35rem);
}

.feature-header p {
  margin: 0.4rem 0 0;
  color: var(--muted);
}

.feature-note {
  font-size: 0.93rem;
}

.contract-workspace {
  display: grid;
  grid-template-columns: minmax(560px, 1fr) minmax(560px, 1fr);
  gap: 0.9rem;
  align-items: start;
}

.panel {
  background: linear-gradient(180deg, #10141c 0%, #0d1118 100%);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow);
}

.panel-header {
  background: var(--panel-top);
  border-bottom: 1px solid #2e3541;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 0.75rem;
  padding: 0.9rem 1rem;
}

.panel h2 {
  margin: 0;
  font-size: 1.45rem;
}

.panel-form {
  min-height: 920px;
  padding-bottom: 1rem;
}

.panel-preview {
  min-height: 920px;
}

#invoiceForm {
  padding: 0 1rem 1rem;
}

#contractForm {
  padding: 1rem;
}

.tabs {
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  gap: 0.55rem;
  padding: 1rem 1rem 0.15rem;
}

.tab-btn {
  border: 1px solid transparent;
  border-radius: 0;
  border-bottom: 1px solid var(--line);
  background: #12161d;
  color: #c7cfde;
  font-size: 0.98rem;
  font-weight: 700;
  padding: 0.78rem 0.5rem;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.48rem;
  transition: 160ms ease;
}

.tab-btn i {
  width: 1.02rem;
  height: 1.02rem;
}

.tab-btn:hover {
  border-color: #2f3847;
}

.tab-btn.active {
  border-color: var(--accent);
  background: #4b2b12;
  color: #fff0e3;
}

.form-section {
  display: none;
  margin-top: 0.95rem;
}

.form-section.active {
  display: block;
}

.form-section h3 {
  margin: 0;
  font-size: 2.05rem;
}

.subhead {
  margin-top: 2rem;
}

.section-divider {
  height: 1px;
  background: var(--line-soft);
  margin: 1rem 0;
}

.section-top-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.8rem;
  margin-bottom: 0.82rem;
}

.section-subhead {
  margin: 1.35rem 0 0.6rem;
}

.section-subhead h4 {
  margin: 0;
  font-size: 1.15rem;
}

.line-items-header,
.line-item-row {
  display: grid;
  grid-template-columns: 2fr 1.15fr 0.9fr 1.25fr auto;
  gap: 0.55rem;
  align-items: center;
}

.line-items-header {
  color: #aab4c4;
  margin-bottom: 0.4rem;
  font-size: 0.88rem;
}

.line-items {
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  background: rgba(17, 22, 30, 0.82);
  padding: 0.62rem;
  margin-bottom: 0.9rem;
}

.line-item-row + .line-item-row {
  margin-top: 0.48rem;
}

.line-items-header.fixed-mode,
.line-item-row.fixed-mode {
  grid-template-columns: 2fr 1.2fr 1.35fr auto;
}

label,
fieldset {
  display: flex;
  flex-direction: column;
  gap: 0.45rem;
  color: #d3dbea;
  font-weight: 700;
}

fieldset {
  border: 0;
  margin: 0;
  padding: 0;
}

legend {
  margin-bottom: 0.45rem;
  font-size: 0.95rem;
}

input,
textarea,
select {
  width: 100%;
  border: 1px solid #465168;
  background: linear-gradient(90deg, #232b36 0%, #262f3b 100%);
  color: var(--text);
  border-radius: 0;
  padding: 0.74rem 0.8rem;
  font: inherit;
}

textarea {
  resize: vertical;
}

input::placeholder,
textarea::placeholder {
  color: #a7b0be;
}

input:focus,
textarea:focus,
select:focus,
button:focus-visible {
  outline: 2px solid rgba(255, 138, 42, 0.65);
  outline-offset: 1px;
}

.form-grid {
  display: grid;
  gap: 0.72rem;
  margin-top: 1rem;
}

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

.tax-grid {
  align-items: end;
}

.segmented {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  border: 1px solid #455167;
  overflow: hidden;
}

.seg-btn {
  border: 0;
  background: #151c26;
  color: #c5d0e1;
  cursor: pointer;
  font-family: "Space Grotesk", sans-serif;
  font-size: 1rem;
  padding: 0.73rem;
}

.seg-btn + .seg-btn {
  border-left: 1px solid #455167;
}

.seg-btn.active {
  background: var(--accent);
  color: #08120d;
}

.switch-row {
  margin-top: 1rem;
  flex-direction: row;
  align-items: center;
  gap: 0.58rem;
}

.switch-row input {
  width: 1.15rem;
  height: 1.15rem;
  accent-color: var(--accent);
}

.helper {
  margin: 0.2rem 0 0;
  color: var(--muted);
}

.helper a {
  color: #ffbb86;
}

.helper a:hover {
  color: #ffd3ac;
}

.billing-mode-fieldset {
  margin-top: 1rem;
}

.inline-action {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 0.62rem;
}

.btn {
  border: 0;
  border-radius: 0;
  font: inherit;
  font-weight: 800;
  cursor: pointer;
  padding: 0.66rem 1.05rem;
  transition: 160ms ease;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.45rem;
}

.btn i {
  width: 0.95rem;
  height: 0.95rem;
}

.btn-primary {
  background: var(--accent);
  color: #08130d;
}

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

.btn-subtle {
  background: #333b47;
  color: #f0f4fd;
  border: 1px solid #454f60;
}

.btn-subtle:hover {
  background: #3e4756;
}

.payment-add-btn.is-active {
  border-color: var(--accent);
  background: #4b2b12;
  color: #fff0e3;
}

.btn-danger {
  background: #ac3737;
  color: #fff;
  padding: 0.64rem 0.84rem;
}

.actions {
  display: flex;
  gap: 0.52rem;
}

.dynamic-list {
  display: grid;
  gap: 0.6rem;
}

.dynamic-row {
  border: 1px solid var(--line);
  background: #131923;
  padding: 0.68rem;
  display: grid;
  gap: 0.54rem;
}

.dynamic-row-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr)) auto;
  gap: 0.55rem;
  align-items: end;
}

.payment-add-row {
  margin-top: 1rem;
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.payment-cards {
  display: grid;
  gap: 0.85rem;
  margin-top: 0.95rem;
}

.contract-signing {
  margin-top: 1.2rem;
  border-top: 1px solid var(--line-soft);
  padding-top: 1rem;
}

.contract-signing h3 {
  margin: 0;
  font-size: 1.5rem;
}

.contract-remote {
  margin-top: 1.1rem;
  border-top: 1px solid var(--line-soft);
  padding-top: 0.9rem;
}

.contract-remote h3 {
  margin: 0;
  font-size: 1.25rem;
}

.remote-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.48rem;
  margin-top: 0.62rem;
}

.contract-signers {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0.8rem;
  margin-top: 0.95rem;
}

.signer-card {
  border: 1px solid var(--line);
  background: #111722;
  padding: 0.75rem;
}

.signer-card h4 {
  margin: 0 0 0.6rem;
  font-size: 1.2rem;
}

.signer-mode {
  margin-top: 0.68rem;
}

.signer-typed-wrap,
.signer-draw-wrap {
  margin-top: 0.65rem;
}

.signature-pad {
  width: 100%;
  height: 176px;
  border: 1px dashed #3b4861;
  background: #ffffff;
  display: block;
  touch-action: none;
  cursor: crosshair;
}

.signer-actions {
  display: flex;
  gap: 0.45rem;
  margin-top: 0.72rem;
}

.signer-actions .btn {
  flex: 1;
}

.payment-card {
  border: 1px solid var(--line);
  background: #0f141d;
  padding: 1rem;
}

.payment-card h4 {
  margin: 0 0 0.8rem;
  font-size: 2rem;
}

.payment-card-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0.5rem;
}

.payment-card-grid.single {
  grid-template-columns: 1fr;
}

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

.upload-field h4 {
  margin: 0 0 0.6rem;
  font-size: 1.95rem;
}

.upload-field {
  position: relative;
}

.upload-dropzone {
  width: 100%;
  min-height: 245px;
  border: 2px dashed #39465e;
  background: #0f141d;
  color: #8b96ab;
  padding: 0.9rem;
  cursor: pointer;
  display: grid;
  place-items: center;
  text-align: center;
}

.upload-dropzone:hover {
  border-color: #4f5f79;
}

.upload-placeholder {
  display: grid;
  gap: 0.45rem;
  justify-items: center;
}

.upload-placeholder i {
  width: 2rem;
  height: 2rem;
}

.upload-placeholder p {
  margin: 0;
  font-size: 1rem;
  color: #aeb7c7;
}

.upload-placeholder small {
  color: #7d879b;
}

.upload-preview {
  max-width: 100%;
  max-height: 220px;
  object-fit: contain;
  border: 1px solid #2f3a4f;
}

.hidden {
  display: none !important;
}

.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

.invoice-sheet {
  padding: 1.22rem;
}

.sheet-top {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 1rem;
  border-bottom: 1px solid var(--line);
  padding-bottom: 1rem;
}

.sheet-top h3 {
  margin: 0 0 0.38rem;
  font-size: 1.95rem;
}

.preview-logo {
  max-height: 54px;
  max-width: 170px;
  object-fit: contain;
  margin-bottom: 0.42rem;
  border: 1px solid #2f3a4f;
  background: #151d28;
}

.sheet-top p,
.issued-to p,
.payment-preview p,
.meta-block p {
  margin: 0.24rem 0;
}

.align-right {
  text-align: right;
}

.muted {
  color: var(--muted);
}

.issued-to {
  border-bottom: 1px solid var(--line);
  padding: 0.92rem 0;
}

.preview-table {
  width: 100%;
  border-collapse: collapse;
  margin: 0.95rem 0;
}

.preview-table th,
.preview-table td {
  border-bottom: 1px solid #2a3341;
  padding: 0.72rem 0.45rem;
}

.preview-table th {
  text-align: left;
  color: #b4bed0;
  font-family: "Space Grotesk", sans-serif;
}

.preview-table th:nth-child(n + 2),
.preview-table td:nth-child(n + 2) {
  text-align: right;
}

.totals {
  width: min(330px, 100%);
  margin-left: auto;
  display: grid;
  gap: 0.22rem;
}

.totals p {
  display: flex;
  justify-content: space-between;
  gap: 0.7rem;
  margin: 0;
  padding: 0.14rem 0;
}

.grand-total {
  border-top: 1px solid var(--line);
  padding-top: 0.62rem;
  margin-top: 0.38rem;
  font-size: 2rem;
}

.meta-block {
  margin-top: 1rem;
  border-top: 1px solid var(--line);
  padding-top: 0.88rem;
}

.meta-block h4,
.payment-preview h4 {
  margin: 0 0 0.42rem;
  font-size: 1.2rem;
}

.custom-field-list {
  display: grid;
  gap: 0.25rem;
  margin: 0;
}

.custom-field-list .cf-row {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 0.6rem;
}

.custom-field-list dt,
.custom-field-list dd {
  margin: 0;
}

.custom-field-list dt {
  color: #bdc7d8;
}

.payment-preview {
  margin-top: 1rem;
  border-top: 1px solid var(--line);
  padding-top: 0.95rem;
}

.payment-preview-methods {
  display: grid;
  gap: 0.58rem;
  margin-top: 0.55rem;
}

.preview-payment-card {
  border: 1px solid #303a4a;
  background: #121823;
  padding: 0.62rem;
}

.preview-payment-card h5 {
  margin: 0 0 0.28rem;
  font-size: 0.98rem;
}

.preview-payment-card p {
  margin: 0.2rem 0;
  color: #c8d1e0;
}

.signature-preview {
  margin-top: 1.1rem;
  border-top: 1px solid var(--line);
  padding-top: 0.95rem;
}

.contract-sheet h3 {
  margin: 0;
  font-size: 1.9rem;
}

.contract-summary {
  display: grid;
  gap: 0.25rem;
  margin-top: 1rem;
  border: 1px solid var(--line);
  background: #121823;
  padding: 0.7rem;
}

.contract-summary p {
  margin: 0;
  display: flex;
  justify-content: space-between;
  gap: 1rem;
}

.contract-summary span {
  color: #bcc5d7;
}

.contract-clauses {
  margin: 1rem 0 0;
  padding-left: 1.2rem;
  display: grid;
  gap: 0.44rem;
  color: #c8d1df;
}

.sign-status-signed {
  color: #8be6b0 !important;
  font-weight: 700;
}

.sign-status-unsigned {
  color: #ffb7b7 !important;
  font-weight: 700;
}

.contract-signature-preview {
  margin-top: 1rem;
  border-top: 1px solid var(--line);
  padding-top: 0.9rem;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0.7rem;
}

.contract-sign-box {
  border: 1px solid #303a4a;
  background: #121823;
  padding: 0.65rem;
}

.contract-sign-image {
  margin-top: 0.4rem;
  max-width: 100%;
  max-height: 72px;
  object-fit: contain;
  border-bottom: 1px solid #3a465a;
  background: #ffffff;
}

.contract-sign-typed {
  margin-top: 0.45rem;
  font-family: "Space Grotesk", sans-serif;
  font-size: 1.2rem;
  color: #ffe1c8;
  border-bottom: 1px solid #3a465a;
  padding-bottom: 0.25rem;
}

.signature-preview img {
  max-height: 72px;
  max-width: 230px;
  object-fit: contain;
  border-bottom: 1px solid #3b4659;
  padding-bottom: 0.35rem;
}

.status {
  min-height: 1.35rem;
  margin: 0 1.2rem 1.1rem;
  color: #7fe2ad;
  font-weight: 700;
}

@media (max-width: 1280px) {
  .workspace {
    grid-template-columns: 1fr;
  }

  .contract-workspace {
    grid-template-columns: 1fr;
  }

  .panel-form,
  .panel-preview {
    min-height: auto;
  }
}

@media (max-width: 860px) {
  .feature-switch {
    flex-direction: column;
  }

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

  .line-items-header {
    display: none;
  }

  .line-item-row {
    grid-template-columns: 1fr;
    border: 1px solid var(--line);
    padding: 0.65rem;
  }

  .dynamic-row-grid,
  .two-col,
  .payment-card-grid,
  .upload-grid,
  .contract-signers,
  .contract-signature-preview {
    grid-template-columns: 1fr;
  }

  .inline-action {
    grid-template-columns: 1fr;
  }

  .sheet-top {
    grid-template-columns: 1fr;
  }

  .align-right {
    text-align: left;
  }

  .actions {
    flex-wrap: wrap;
    justify-content: flex-end;
  }

  .panel-header {
    flex-wrap: wrap;
  }
}