:root {
  --primary: #0d6efd;
  --primary-deep: #0a4fb0;
  --primary-soft: #dbe9ff;
  --secondary: #ffffff;
  --text-main: #12315c;
  --text-soft: #5e7ca8;
  --surface: rgba(255, 255, 255, 0.8);
  --shadow: 0 24px 60px rgba(13, 77, 170, 0.18);
  --radius-lg: 28px;
  --radius-md: 20px;
  --radius-sm: 14px;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100vh;
  font-family: sans-serif;
  color: var(--text-main);
  background:
    radial-gradient(circle at top left, rgba(255, 255, 255, 0.92), transparent 35%),
    linear-gradient(145deg, #f4f9ff 0%, #cfe1ff 45%, #8cb9ff 100%);
}

button {
  font: inherit;
}

.app-shell {
  width: min(1120px, calc(100% - 32px));
  margin: 0 auto;
  padding: 40px 0 56px;
}

.hero,
.board {
  border: 1px solid rgba(255, 255, 255, 0.7);
  background: var(--surface);
  backdrop-filter: blur(18px);
  box-shadow: var(--shadow);
}

.hero {
  display: grid;
  grid-template-columns: 1.5fr 0.8fr;
  gap: 24px;
  padding: 32px;
  border-radius: var(--radius-lg);
}

.eyebrow,
.section-label,
.status-label {
  margin: 0 0 8px;
  text-transform: uppercase;
  letter-spacing: 0.16em;
  font-size: 0.75rem;
  font-weight: 700;
  color: var(--primary);
}

.hero h1,
.board h2 {
  margin: 0;
  line-height: 1;
}

.hero h1 {
  font-size: clamp(2.4rem, 5vw, 4.5rem);
  max-width: 11ch;
}

.hero-text,
.board-tip,
.block-description {
  color: var(--text-soft);
}

.hero-text {
  max-width: 52ch;
  margin: 16px 0 0;
  font-size: 1.05rem;
  line-height: 1.6;
}

.hero-panel {
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  gap: 16px;
}

.hero-actions {
  display: grid;
  gap: 12px;
}

.submission-name-field {
  display: grid;
  gap: 8px;
}

.submission-name-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 12px;
}

.submission-name-actions {
  display: flex;
  align-items: center;
  gap: 10px;
}

.submission-name-label {
  color: var(--primary-deep);
  font-size: 0.82rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}



.name-lock-button, .submission-copy-button {
  border: 1px solid rgba(13, 110, 253, 0.22);
  padding: 8px 12px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.88);
  color: var(--primary-deep);
  font: inherit;
  font-size: 0.82rem;
  font-weight: 700;
  cursor: pointer;
  transition: background 160ms ease, color 160ms ease, border-color 160ms ease, transform 160ms ease;
}

.name-lock-button:hover,
.name-lock-button:focus-visible,
.submission-copy-button:hover,
.submission-copy-button:focus-visible {
  transform: translateY(-1px);
  border-color: rgba(13, 110, 253, 0.42);
  outline: none;
}

.name-lock-button[aria-pressed="true"] {
  background: linear-gradient(160deg, var(--primary) 0%, var(--primary-deep) 100%);
  color: var(--secondary);
  border-color: rgba(13, 110, 253, 0.5);
}

.submission-name-input {
  width: 100%;
  border: 1px solid rgba(13, 110, 253, 0.18);
  border-radius: var(--radius-md);
  padding: 16px 18px;
  background: rgba(255, 255, 255, 0.94);
  color: var(--text-main);
  font: inherit;
  font-weight: 600;
}

.submission-name-input:focus {
  outline: 2px solid rgba(13, 110, 253, 0.18);
  border-color: rgba(13, 110, 253, 0.4);
}

.status-card,
.ghost-button,
.sequence-block,
.primary-button,
.submission-result,
.socket-status {
  border-radius: var(--radius-md);
}

.primary-button {
  border: none;
  padding: 16px 18px;
  background: linear-gradient(160deg, var(--primary) 0%, var(--primary-deep) 100%);
  color: var(--secondary);
  font-weight: 700;
  cursor: pointer;
  box-shadow: 0 18px 30px rgba(13, 110, 253, 0.18);
  transition: transform 180ms ease, box-shadow 180ms ease;
}

.primary-button:hover,
.primary-button:focus-visible {
  transform: translateY(-2px);
  box-shadow: 0 22px 38px rgba(13, 110, 253, 0.28);
  outline: none;
}

.primary-button.is-invalid {
  background: linear-gradient(160deg, #d83b53 0%, #a61f3a 100%);
  box-shadow: 0 18px 30px rgba(168, 31, 58, 0.28);
}

.status-card {
  padding: 20px;
  background: linear-gradient(160deg, var(--primary) 0%, var(--primary-deep) 100%);
  color: var(--secondary);
}

.status-card strong {
  display: block;
  font-size: 2rem;
}

.socket-status {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 16px 18px;
  border: 1px solid rgba(13, 110, 253, 0.16);
  background: rgba(255, 255, 255, 0.82);
}

.socket-status-dot {
  width: 14px;
  height: 14px;
  border-radius: 50%;
  flex: 0 0 auto;
  box-shadow: 0 0 0 5px rgba(13, 110, 253, 0.1);
  transition: background 180ms ease, box-shadow 180ms ease;
}

.socket-status-copy {
  display: grid;
  gap: 2px;
}

.socket-status-label {
  text-transform: uppercase;
  letter-spacing: 0.12em;
  font-size: 0.74rem;
  font-weight: 700;
  color: var(--text-soft);
}

.socket-status-copy strong {
  font-size: 1rem;
  line-height: 1.1;
}

.socket-status-connected .socket-status-dot {
  background: #11b56b;
  box-shadow: 0 0 0 5px rgba(17, 181, 107, 0.18), 0 0 16px rgba(17, 181, 107, 0.38);
}

.socket-status-connecting .socket-status-dot {
  background: #f5a623;
  box-shadow: 0 0 0 5px rgba(245, 166, 35, 0.16), 0 0 16px rgba(245, 166, 35, 0.32);
}

.socket-status-disconnected .socket-status-dot {
  background: #dd4455;
  box-shadow: 0 0 0 5px rgba(221, 68, 85, 0.14), 0 0 16px rgba(221, 68, 85, 0.28);
}

.status-label {
  color: rgba(255, 255, 255, 0.8);
}

.ghost-button {
  border: 2px solid rgba(13, 110, 253, 0.22);
  padding: 16px 18px;
  background: rgba(255, 255, 255, 0.78);
  color: var(--primary);
  font-weight: 700;
  cursor: pointer;
  transition: transform 180ms ease, box-shadow 180ms ease, border-color 180ms ease;
}

.ghost-button:hover,
.ghost-button:focus-visible {
  transform: translateY(-2px);
  box-shadow: 0 18px 30px rgba(13, 110, 253, 0.16);
  border-color: rgba(13, 110, 253, 0.42);
  outline: none;
}

.board {
  margin-top: 28px;
  padding: 28px;
  border-radius: var(--radius-lg);
}

.board-grid {
  display: grid;
  grid-template-columns: minmax(320px, 0.95fr) minmax(360px, 1.15fr);
  gap: 24px;
}

.panel {
  min-width: 0;
}

.board-header {
  display: flex;
  justify-content: space-between;
  align-items: end;
  gap: 16px;
  margin-bottom: 22px;
}

.board-tip {
  margin: 0;
  text-align: right;
}

.bank-list,
.workspace-list {
  display: grid;
  gap: 16px;
}

.bank-list {
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px;
}

.bank-search-input, .new-auto-input {
  width: 100%;
  margin-bottom: 18px;
  border: 1px solid rgba(13, 110, 253, 0.18);
  border-radius: var(--radius-md);
  padding: 14px 16px;
  background: rgba(255, 255, 255, 0.94);
  color: var(--text-main);
  font: inherit;
  font-weight: 600;
}

.bank-search-input:focus, .new-auto-input:focus {
  outline: 2px solid rgba(13, 110, 253, 0.18);
  border-color: rgba(13, 110, 253, 0.4);
}

.sequence-block {
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: center;
  gap: 18px;
  padding: 20px;
  border: 1px solid rgba(13, 110, 253, 0.12);
  background: linear-gradient(300deg, rgba(113, 151, 255, 0.98) 5%, rgba(226, 239, 255, 0.94) 60%);
  cursor: grab;
  transition: transform 160ms ease, box-shadow 160ms ease, border-color 160ms ease;
}

.sequence-block.in-bank {
  grid-template-columns: auto 1fr;
  align-items: start;
  gap: 12px;
  padding: 14px;
  background: linear-gradient(135deg, rgba(240, 247, 255, 0.98), rgba(240, 247, 255, 0.94));
  border: 1px solid rgba(13, 110, 253, 0.12);
}

.sequence-block.in-bank .block-index {
  width: 44px;
  height: 44px;
  border-radius: 14px;
  font-size: 1rem;
}

.sequence-block.in-bank .block-copy h3 {
  font-size: 1rem;
}

.sequence-block.in-bank .block-copy p {
  font-size: 0.92rem;
  line-height: 1.4;
}

.sequence-block.in-bank .block-actions {
  grid-column: 1 / -1;
}

.sequence-block.in-workspace {
  border-radius: 18px;
  position: relative;
  overflow: hidden;
  background-clip: padding-box;
}

.sequence-block.in-workspace .block-description {
  color: #2d405b;
}

.sequence-block:hover {
  transform: translateY(-2px);
  box-shadow: 0 18px 35px rgba(9, 74, 171, 0.12);
  border-color: rgba(13, 110, 253, 0.25);
}

.sequence-block.dragging {
  opacity: 0.55;
  transform: scale(0.98);
}

.sequence-block.drag-target {
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(13, 110, 253, 0.16);
}

.block-index {
  width: 58px;
  height: 58px;
  display: grid;
  place-items: center;
  border-radius: 18px;
  background: linear-gradient(180deg, var(--primary) 0%, var(--primary-deep) 100%);
  color: var(--secondary);
  font-size: 1.2rem;
  font-weight: 700;
}

.block-copy h3 {
  margin: 0 0 6px;
  font-size: 1.15rem;
}

.block-copy p {
  margin: 0;
  line-height: 1.5;
}

.block-input-wrap {
  margin-top: 12px;
}

.block-input-label {
  display: block;
  margin-bottom: 8px;
  color: var(--primary-deep);
  font-size: 0.82rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.block-number-input {
  width: min(180px, 100%);
  border: 1px solid rgba(13, 110, 253, 0.18);
  border-radius: 14px;
  padding: 12px 14px;
  background: rgba(255, 255, 255, 0.94);
  color: var(--text-main);
  font: inherit;
  font-weight: 600;
}

.block-number-input:focus {
  outline: 2px solid rgba(13, 110, 253, 0.18);
  border-color: rgba(13, 110, 253, 0.4);
}

.block-actions {
  display: flex;
  gap: 10px;
}

.workspace-panel {
  display: flex;
  flex-direction: column;
}

.workspace-start-control {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
  margin-bottom: 16px;
  padding: 14px 18px;
  border: 1px solid rgba(13, 110, 253, 0.14);
  border-radius: 20px;
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.95), rgba(233, 243, 255, 0.9));
}

.workspace-start-label {
  color: var(--primary-deep);
  font-size: 0.95rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.workspace-start-toggle {
  display: grid;
  grid-template-columns: repeat(2, minmax(150px, 1fr));
  gap: 14px;
  width: min(100%, 460px);
}

.start-option {
  min-height: 84px;
  border: 1px solid rgba(13, 110, 253, 0.14);
  padding: 18px 22px;
  border-radius: 18px;
  background: linear-gradient(135deg, rgba(255, 255, 255, 0.98), rgba(226, 239, 255, 0.92));
  color: var(--primary-deep);
  font-weight: 700;
  font-size: 1rem;
  text-align: center;
  cursor: pointer;
  box-shadow: 0 18px 35px rgba(9, 74, 171, 0.08);
  transition: background 160ms ease, color 160ms ease, box-shadow 160ms ease, transform 160ms ease, border-color 160ms ease;
}

.start-option:hover,
.start-option:focus-visible {
  transform: translateY(-2px);
  border-color: rgba(13, 110, 253, 0.25);
  outline: none;
}

.start-option.is-active {
  background: linear-gradient(160deg, var(--primary) 0%, var(--primary-deep) 100%);
  color: var(--secondary);
  border-color: rgba(13, 110, 253, 0.5);
  box-shadow: 0 20px 32px rgba(13, 110, 253, 0.22);
}

.workspace-dropzone {
  min-height: 390px;
  padding: 20px;
  border: 2px dashed rgba(13, 110, 253, 0.22);
  border-radius: 26px;
  background: linear-gradient(180deg, rgba(245, 250, 255, 0.95), rgba(221, 236, 255, 0.82));
  transition: border-color 160ms ease, box-shadow 160ms ease, background 160ms ease;
}

.workspace-dropzone.drag-over {
  border-color: var(--primary);
  box-shadow: inset 0 0 0 2px rgba(13, 110, 253, 0.08);
  background: linear-gradient(180deg, rgba(255, 255, 255, 1), rgba(214, 231, 255, 0.92));
}

.workspace-empty {
  min-height: 260px;
  display: grid;
  place-items: center;
  align-content: center;
  gap: 8px;
  color: var(--text-soft);
  text-align: center;
}

.workspace-empty strong {
  color: var(--primary-deep);
  font-size: 1.2rem;
}

.helper-copy {
  margin: 0;
  color: var(--text-soft);
  line-height: 1.6;
}

.submission-result {
  margin-top: 18px;
  padding: 18px 20px;
  border: 1px solid rgba(13, 110, 253, 0.16);
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.98), rgba(232, 242, 255, 0.92));
  color: var(--text-main);
  line-height: 1.5;
}

.saved-autos-modal {
  position: fixed;
  inset: 0;
  display: grid;
  place-items: center;
  padding: 24px;
  z-index: 30;
}

.saved-autos-modal[hidden] {
  display: none;
}

.saved-autos-backdrop {
  position: absolute;
  inset: 0;
  background: rgba(7, 26, 56, 0.42);
  backdrop-filter: blur(8px);
}

.saved-autos-panel {
  position: relative;
  width: min(640px, 100%);
  max-height: min(80vh, 760px);
  overflow: auto;
  padding: 28px;
  border: 1px solid rgba(255, 255, 255, 0.76);
  border-radius: var(--radius-lg);
  background: rgba(248, 252, 255, 0.96);
  box-shadow: 0 28px 80px rgba(7, 26, 56, 0.28);
}

.saved-autos-header {
  display: flex;
  justify-content: space-between;
  align-items: start;
  gap: 16px;
}

.saved-autos-close {
  white-space: nowrap;
}

.saved-autos-status {
  margin: 18px 0 0;
  color: var(--text-soft);
  line-height: 1.5;
}

.saved-autos-list {
  display: grid;
  gap: 14px;
  margin-top: 20px;
}

.saved-auto-item {
  position: relative;
}

.saved-auto-load-button,
.saved-auto-delete-button {
  color: var(--primary-deep);
  font: inherit;
}

.saved-auto-load-button {
  width: 100%;
  border: 1px solid rgba(13, 110, 253, 0.16);
  padding: 18px 56px 18px 20px;
  border-radius: 18px;
  background: linear-gradient(135deg, rgba(255, 255, 255, 1), rgba(228, 240, 255, 0.92));
  font-weight: 700;
  text-align: left;
  cursor: pointer;
  transition: transform 160ms ease, box-shadow 160ms ease, border-color 160ms ease;
}

.saved-auto-delete-button {
  position: absolute;
  top: 50%;
  right: 18px;
  border: none;
  background: transparent;
  padding: 6px;
  transform: translateY(-50%);
  border-radius: 999px;
  font-weight: 800;
  line-height: 1;
  cursor: pointer;
  transition: background 160ms ease, color 160ms ease;
}

.saved-auto-load-button:hover,
.saved-auto-load-button:focus-visible {
  transform: translateY(-2px);
  border-color: rgba(13, 110, 253, 0.35);
  box-shadow: 0 18px 35px rgba(9, 74, 171, 0.12);
  outline: none;
}

.saved-auto-delete-button:hover,
.saved-auto-delete-button:focus-visible {
  color: var(--primary);
  background: rgba(13, 110, 253, 0.1);
  outline: none;
}

.move-button {
  border: none;
  padding: 12px 16px;
  border-radius: var(--radius-sm);
  background: var(--primary-soft);
  color: var(--primary-deep);
  font-weight: 700;
  cursor: pointer;
  transition: background 160ms ease, color 160ms ease, transform 160ms ease;
}

.move-button:hover,
.move-button:focus-visible {
  background: var(--primary);
  color: var(--secondary);
  transform: translateY(-1px);
  outline: none;
}

.move-button:disabled {
  opacity: 0.45;
  cursor: not-allowed;
  transform: none;
}

@media (max-width: 820px) {
  .board-grid,
  .hero,
  .board-header,
  .sequence-block {
    grid-template-columns: 1fr;
  }

  .bank-list {
    grid-template-columns: 1fr;
  }

  .hero-panel,
  .board-tip {
    text-align: left;
  }

  .workspace-start-control {
    flex-direction: column;
    align-items: stretch;
  }

  .saved-autos-header {
    flex-direction: column;
    align-items: stretch;
  }

  .workspace-start-toggle {
    width: 100%;
  }

  .start-option {
    flex: 1;
  }

  .sequence-block {
    align-items: start;
  }

  .block-actions {
    width: 100%;
  }

  .move-button {
    flex: 1;
  }
}