:root {
  --bg: #081118;
  --bg-card: #0e1b26;
  --bg-elevated: #142534;
  --border: rgba(130, 177, 255, 0.16);
  --border-strong: rgba(81, 224, 185, 0.35);
  --text: #eef5fc;
  --muted: #98b1c9;
  --primary: #4285f4;
  --primary-hover: #5a95f5;
  --teal: #42d9b1;
  --purple: #b798ff;
  --amber: #f5b95f;
  --danger: #ff6b6b;
  --font: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  background: radial-gradient(circle at 15% 0%, #102538 0%, var(--bg) 55%);
  color: var(--text);
  font-family: var(--font);
  line-height: 1.5;
  min-height: 100vh;
}

/* Header & Navigation */
.studio-topbar {
  position: sticky;
  top: 0;
  z-index: 40;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 0.75rem 1.75rem;
  background: rgba(8, 17, 24, 0.92);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
}

.brand-group {
  display: flex;
  align-items: center;
  gap: 1rem;
}

.brand {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  text-decoration: none;
  color: var(--text);
}

.brand-mark {
  width: 36px;
  height: 36px;
  border-radius: 10px;
  background: linear-gradient(135deg, var(--teal), var(--primary));
  color: #041016;
  font-weight: 800;
  font-size: 1.15rem;
  display: grid;
  place-items: center;
}

.brand strong {
  display: block;
  font-size: 1.05rem;
  letter-spacing: -0.02em;
}

.brand strong span {
  color: var(--teal);
  font-size: 0.78rem;
  margin-left: 0.35rem;
  padding: 0.1rem 0.45rem;
  border-radius: 99px;
  background: rgba(66, 217, 177, 0.14);
}

.brand small {
  display: block;
  font-size: 0.68rem;
  color: var(--muted);
  letter-spacing: 0.08em;
}

.ai-pill {
  font-size: 0.76rem;
  font-weight: 600;
  padding: 0.3rem 0.7rem;
  border-radius: 99px;
  background: rgba(66, 217, 177, 0.12);
  border: 1px solid rgba(66, 217, 177, 0.35);
  color: var(--teal);
}

.studio-nav {
  display: flex;
  gap: 0.4rem;
  background: var(--bg-card);
  padding: 0.25rem;
  border-radius: 10px;
  border: 1px solid var(--border);
}

.nav-link {
  color: var(--muted);
  text-decoration: none;
  font-size: 0.84rem;
  font-weight: 600;
  padding: 0.4rem 0.85rem;
  border-radius: 7px;
  transition: all 0.15s ease;
}

.nav-link:hover {
  color: var(--text);
}

.nav-link.active {
  background: rgba(66, 133, 244, 0.2);
  color: #fff;
  border: 1px solid rgba(66, 133, 244, 0.45);
}

.top-actions {
  display: flex;
  align-items: center;
  gap: 0.65rem;
}

/* Container & Cards */
.studio-container {
  max-width: 1440px;
  margin: 0 auto;
  padding: 1.5rem 1.75rem 4rem;
  display: flex;
  flex-direction: column;
  gap: 1.35rem;
}

.card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 1.35rem 1.5rem;
  box-shadow: 0 12px 32px rgba(0, 0, 0, 0.28);
}

.eyebrow {
  display: block;
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.09em;
  text-transform: uppercase;
  color: var(--teal);
  margin-bottom: 0.25rem;
}

h1, h2, h3 {
  margin: 0 0 0.4rem;
  letter-spacing: -0.02em;
}

h1 {
  font-size: 1.55rem;
}

h2 {
  font-size: 1.2rem;
}

.muted {
  color: var(--muted);
  margin: 0;
  font-size: 0.9rem;
}

/* Buttons */
button, .btn-primary, .btn-secondary, .btn-ghost, .btn-ce, .btn-ce-outline {
  font-family: inherit;
  font-size: 0.86rem;
  font-weight: 600;
  border-radius: 9px;
  padding: 0.55rem 1rem;
  cursor: pointer;
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  transition: all 0.15s ease;
}

.btn-primary {
  background: linear-gradient(135deg, #4285f4, #2b6de0);
  color: #fff;
  border: 1px solid rgba(255, 255, 255, 0.15);
}

.btn-primary:hover {
  background: linear-gradient(135deg, #5a95f5, #3979eb);
}

.btn-secondary {
  background: var(--bg-elevated);
  color: var(--text);
  border: 1px solid var(--border);
}

.btn-secondary:hover {
  border-color: var(--teal);
  color: #fff;
}

.btn-ghost {
  background: transparent;
  color: var(--muted);
  border: 1px solid var(--border);
}

.btn-ghost:hover, .btn-ghost.active {
  color: var(--teal);
  border-color: var(--teal);
  background: rgba(66, 217, 177, 0.1);
}

.btn-ce {
  background: linear-gradient(135deg, rgba(66, 217, 177, 0.2), rgba(66, 133, 244, 0.22));
  color: #fff;
  border: 1px solid var(--border-strong);
}

.btn-ce-outline {
  background: rgba(66, 217, 177, 0.1);
  color: var(--teal);
  border: 1px solid var(--border-strong);
}

.badge-count {
  background: var(--teal);
  color: #041016;
  font-size: 0.72rem;
  font-weight: 800;
  padding: 0.05rem 0.45rem;
  border-radius: 99px;
}

/* Ingest Bar */
.ingest-bar {
  display: grid;
  grid-template-columns: 1.15fr 1fr;
  gap: 1.5rem;
  align-items: center;
}

.ingest-intro p {
  color: var(--muted);
  margin: 0.35rem 0 0;
  font-size: 0.92rem;
}

.ingest-controls {
  display: flex;
  flex-direction: column;
  gap: 0.85rem;
}

.upload-box {
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
  background: var(--bg-elevated);
  padding: 0.9rem;
  border-radius: 11px;
  border: 1px dashed rgba(130, 177, 255, 0.35);
}

.file-dropzone {
  display: flex;
  align-items: center;
  gap: 0.8rem;
  cursor: pointer;
}

.file-dropzone input[type="file"] {
  display: none;
}

.drop-icon {
  width: 38px;
  height: 38px;
  border-radius: 9px;
  background: rgba(66, 133, 244, 0.18);
  color: #7ab0ff;
  display: grid;
  place-items: center;
  font-size: 1.1rem;
  font-weight: 700;
}

.file-dropzone strong {
  display: block;
  font-size: 0.9rem;
}

.file-dropzone small {
  color: var(--muted);
  font-size: 0.76rem;
}

.upload-options {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.75rem;
  flex-wrap: wrap;
}

.check-inline {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  font-size: 0.8rem;
  color: var(--muted);
  cursor: pointer;
}

.sample-loader {
  display: flex;
  flex-direction: column;
  gap: 0.45rem;
}

.small-label {
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  color: var(--muted);
}

.sample-buttons {
  display: flex;
  gap: 0.5rem;
  flex-wrap: wrap;
}

.status-text {
  margin: 0.2rem 0 0;
  font-size: 0.82rem;
  color: var(--teal);
}

/* Doctor Section */
.doctor-header, .controls-header, .section-header-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  flex-wrap: wrap;
  margin-bottom: 0.9rem;
}

.doctor-actions, .deliverable-buttons {
  display: flex;
  align-items: center;
  gap: 0.65rem;
  flex-wrap: wrap;
}

.status-pill {
  padding: 0.3rem 0.75rem;
  border-radius: 99px;
  font-size: 0.78rem;
  font-weight: 700;
}

.status-pill.ok {
  background: rgba(66, 217, 177, 0.15);
  color: var(--teal);
  border: 1px solid rgba(66, 217, 177, 0.4);
}

.doctor-issues {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 0.65rem;
}

.doctor-issue-item {
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-left: 3px solid var(--teal);
  padding: 0.65rem 0.85rem;
  border-radius: 8px;
  font-size: 0.82rem;
}

.doctor-issue-item strong {
  display: block;
  color: #fff;
  margin-bottom: 0.15rem;
}

.doctor-issue-item span {
  color: var(--muted);
}

/* Controls Grid */
.controls-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 0.9rem;
}

.control-field {
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
  font-size: 0.8rem;
  color: var(--muted);
}

.control-field select, .vm-explorer-toolbar input, .vm-explorer-toolbar select,
.groups-table select, .copilot-input-row input, . studio-dialog input, .studio-dialog textarea {
  background: var(--bg-elevated);
  color: var(--text);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 0.52rem 0.7rem;
  font-family: inherit;
  font-size: 0.85rem;
}

.toggle-wrap {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  height: 38px;
  padding: 0 0.75rem;
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: 8px;
  color: var(--text);
}

/* Two-Table Executive TCO Grid */
.tco-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.25rem;
}

.primary-tco {
  border-top: 3px solid var(--primary);
}

.dr-tco {
  border-top: 3px solid var(--teal);
}

.tco-card-head {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 0.75rem;
  margin-bottom: 0.8rem;
}

.savings-badge {
  background: rgba(66, 133, 244, 0.18);
  color: #8ab4f8;
  border: 1px solid rgba(66, 133, 244, 0.4);
  padding: 0.25rem 0.65rem;
  border-radius: 99px;
  font-size: 0.76rem;
  font-weight: 700;
  white-space: nowrap;
}

.savings-badge.dr-badge {
  background: rgba(66, 217, 177, 0.16);
  color: var(--teal);
  border-color: rgba(66, 217, 177, 0.4);
}

.tco-big-number {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 1rem;
  padding: 0.85rem 1rem;
  background: var(--bg-elevated);
  border-radius: 10px;
  margin-bottom: 0.9rem;
}

.tco-big-number small {
  display: block;
  font-size: 0.7rem;
  color: var(--muted);
  letter-spacing: 0.06em;
}

.tco-big-number strong {
  font-size: 1.85rem;
  font-weight: 800;
  color: #fff;
}

.tco-sub-numbers {
  display: flex;
  flex-direction: column;
  gap: 0.15rem;
  font-size: 0.78rem;
  color: var(--muted);
  text-align: right;
}

.breakdown-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.82rem;
}

.breakdown-table th, .breakdown-table td {
  padding: 0.55rem 0.6rem;
  text-align: left;
  border-bottom: 1px solid rgba(130, 177, 255, 0.1);
}

.breakdown-table th {
  color: var(--muted);
  font-weight: 600;
  font-size: 0.74rem;
  text-transform: uppercase;
}

.zero-cost {
  color: var(--teal);
  font-weight: 700;
}

/* Buckets Grid */
.pillar-badges {
  display: flex;
  gap: 0.5rem;
  flex-wrap: wrap;
}

.pillar-pill {
  padding: 0.3rem 0.7rem;
  border-radius: 99px;
  font-size: 0.76rem;
  font-weight: 700;
  background: var(--bg-elevated);
  border: 1px solid var(--border);
}

.pillar-pill.ramp {
  background: rgba(245, 185, 95, 0.16);
  color: var(--amber);
  border-color: rgba(245, 185, 95, 0.45);
}

.buckets-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 0.9rem;
}

.bucket-card {
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: 11px;
  padding: 1rem;
  display: flex;
  flex-direction: column;
  gap: 0.45rem;
}

.bucket-card h4 {
  margin: 0;
  font-size: 0.95rem;
  color: #fff;
}

.bucket-metrics {
  display: flex;
  gap: 0.85rem;
  font-size: 0.82rem;
  color: var(--teal);
  font-weight: 600;
}

/* Waves Timeline */
.waves-timeline {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 0.85rem;
  margin: 1rem 0 1.25rem;
}

.wave-card {
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-top: 3px solid var(--primary);
  border-radius: 10px;
  padding: 0.85rem 1rem;
}

.wave-card strong {
  display: block;
  font-size: 0.88rem;
  margin-bottom: 0.35rem;
}

.wave-stats {
  display: flex;
  justify-content: space-between;
  font-size: 0.8rem;
  color: var(--muted);
}

.wave-cost {
  margin-top: 0.45rem;
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--teal);
}

/* Groups & VM Tables */
.table-responsive {
  overflow-x: auto;
}

.groups-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.83rem;
}

.groups-table th, .groups-table td {
  padding: 0.65rem 0.7rem;
  text-align: left;
  border-bottom: 1px solid rgba(130, 177, 255, 0.1);
}

.groups-table th {
  background: rgba(20, 37, 52, 0.75);
  color: var(--muted);
  font-size: 0.74rem;
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

.groups-table tbody tr:hover {
  background: rgba(66, 133, 244, 0.06);
}

.vm-explorer-details {
  margin-top: 1.15rem;
  border-top: 1px solid var(--border);
  padding-top: 0.9rem;
}

.vm-explorer-details summary {
  cursor: pointer;
  font-weight: 700;
  color: var(--teal);
  font-size: 0.9rem;
}

.vm-explorer-toolbar {
  display: flex;
  gap: 0.75rem;
  margin: 0.8rem 0;
}

.vm-explorer-toolbar input {
  flex: 1;
}

.vm-table-scroll {
  max-height: 420px;
  overflow-y: auto;
}

/* Copilot Section */
.copilot-prompts {
  display: flex;
  gap: 0.55rem;
  flex-wrap: wrap;
  margin-bottom: 0.85rem;
}

.prompt-chip {
  background: var(--bg-elevated);
  color: var(--text);
  border: 1px solid var(--border);
  border-radius: 99px;
  padding: 0.4rem 0.85rem;
  font-size: 0.8rem;
}

.prompt-chip:hover {
  border-color: var(--teal);
  color: var(--teal);
}

.copilot-input-row {
  display: flex;
  gap: 0.65rem;
}

.copilot-input-row input {
  flex: 1;
}

.copilot-response {
  margin-top: 1rem;
  padding: 1rem 1.15rem;
  background: var(--bg-elevated);
  border-left: 3px solid var(--teal);
  border-radius: 10px;
}

.copilot-answer-head {
  display: flex;
  justify-content: space-between;
  margin-bottom: 0.4rem;
}

.copilot-evidence-box {
  margin: 0.65rem 0;
  padding: 0.5rem 0.75rem;
  background: rgba(8, 17, 24, 0.55);
  border-radius: 7px;
  font-size: 0.78rem;
  color: var(--muted);
}

/* CE Workspace Dialog */
.studio-dialog {
  width: min(880px, 94vw);
  background: var(--bg-card);
  color: var(--text);
  border: 1px solid var(--border-strong);
  border-radius: 16px;
  padding: 0;
  box-shadow: 0 24px 64px rgba(0, 0, 0, 0.65);
}

.studio-dialog::backdrop {
  background: rgba(3, 8, 13, 0.76);
  backdrop-filter: blur(4px);
}

.dialog-content {
  padding: 1.5rem;
}

.dialog-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  margin-bottom: 1.1rem;
}

.login-fields, .save-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 0.8rem;
  align-items: end;
}

.login-fields label, .save-grid label, .notes-field {
  display: flex;
  flex-direction: column;
  gap: 0.3rem;
  font-size: 0.8rem;
  color: var(--muted);
}

.notes-field {
  margin-top: 0.75rem;
}

.studio-dialog input, .studio-dialog textarea {
  background: var(--bg-elevated);
  color: var(--text);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 0.55rem 0.75rem;
  font-family: inherit;
}

.ce-user-bar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 0.7rem 1rem;
  background: rgba(66, 217, 177, 0.1);
  border: 1px solid var(--border-strong);
  border-radius: 10px;
  margin-bottom: 1rem;
}

.ce-user-bar small {
  display: block;
  color: var(--muted);
  font-size: 0.75rem;
}

.ce-save-box {
  background: var(--bg-elevated);
  padding: 1rem;
  border-radius: 11px;
  border: 1px solid var(--border);
  margin-bottom: 1.25rem;
}

.save-actions {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-top: 0.75rem;
}

.saved-sizings-list {
  display: flex;
  flex-direction: column;
  gap: 0.65rem;
  max-height: 290px;
  overflow-y: auto;
}

.saved-sizing-item {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 1rem;
  padding: 0.8rem 1rem;
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: 10px;
}

.saved-sizing-meta strong {
  display: block;
  font-size: 0.92rem;
  color: #fff;
}

.saved-sizing-meta small {
  color: var(--muted);
  font-size: 0.78rem;
}

.saved-sizing-actions {
  display: flex;
  gap: 0.45rem;
  flex-wrap: wrap;
}

@media (max-width: 980px) {
  .ingest-bar, .tco-grid {
    grid-template-columns: 1fr;
  }
  .waves-timeline {
    grid-template-columns: 1fr 1fr;
  }
}