/* ==========================================================================
   VMware Exit Analysis Tool — styles.css
   Design: deep navy banner + blue accent, light gray page background —
   matched to the client's internal "OCP Pod / KubeVirt Inventory" tool.
   Product colors carried from app.js for quick visual scanning of tables.
   ========================================================================== */

:root {
  --ink-950: #0a1730;
  --ink-900: #0d1f43;
  --ink-800: #142a52;
  --ink-700: #1c3970;
  --ink-600: #2c4166;
  --line: #223666;
  --paper: #eef1f6;
  --paper-dim: #b9c4dd;
  --accent: #2f5fd6;
  --accent-dim: #1f47ac;
  --accent-soft: #e8effd;
  --amber: #2f5fd6;
  --amber-dim: #1f47ac;
  --text-hi: #ffffff;
  --text-lo: #a9b6da;
  --radius: 8px;
  --font-ui: 'Segoe UI', 'IBM Plex Sans', Inter, -apple-system, BlinkMacSystemFont, Arial, sans-serif;
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
  background: var(--paper);
  color: var(--ink-900);
  font-family: var(--font-ui);
  font-size: 15px;
  line-height: 1.5;
}

h1, h2, h3, h4 { font-family: var(--font-ui); margin: 0 0 .4em; }

/* ---------------------------------------------------------------------- */
/* HEADER                                                                  */
/* ---------------------------------------------------------------------- */
.site-header {
  background: linear-gradient(180deg, var(--ink-950) 0%, var(--ink-900) 100%);
  color: var(--text-hi);
  padding: 28px 32px 0;
  border-bottom: 3px solid var(--accent);
}
.header-inner {
  display: flex;
  align-items: center;
  gap: 22px;
  max-width: 1280px;
  margin: 0 auto;
  padding-bottom: 22px;
}
.logo { height: 64px; width: auto; flex-shrink: 0; filter: drop-shadow(0 2px 6px rgba(0,0,0,.35)); }
.title-block h1 {
  font-size: 1.6rem;
  font-weight: 700;
  letter-spacing: -.01em;
}
.subtitle { margin: 0; color: var(--text-lo); font-size: .92rem; }

.tabs {
  max-width: 1280px;
  margin: 0 auto;
  display: flex;
  gap: 4px;
}
.tab-btn {
  appearance: none;
  border: none;
  background: transparent;
  color: var(--text-lo);
  padding: 12px 20px;
  font-size: .95rem;
  font-weight: 600;
  cursor: pointer;
  border-radius: var(--radius) var(--radius) 0 0;
  transition: color .15s ease, background .15s ease;
}
.tab-btn:hover { color: var(--text-hi); background: rgba(255,255,255,.04); }
.tab-btn.active {
  color: var(--ink-950);
  background: var(--paper);
}

/* ---------------------------------------------------------------------- */
/* LAYOUT                                                                  */
/* ---------------------------------------------------------------------- */
main { max-width: 1280px; margin: 0 auto; padding: 28px 32px 60px; }
.tab-panel { display: none; }
.tab-panel.active { display: block; }

.block {
  background: #fff;
  border: 1px solid #dfe3ec;
  border-radius: var(--radius);
  padding: 22px 24px 26px;
  margin-bottom: 22px;
}
.block h2 {
  font-size: 1.15rem;
  color: var(--ink-900);
  padding-bottom: 10px;
  border-bottom: 2px solid var(--ink-800);
  margin-bottom: 14px;
}
.block h3 { font-size: .98rem; color: var(--ink-800); margin-top: 4px; }
.block-intro { color: #56607a; margin: 0 0 14px; font-size: .92rem; max-width: 78ch; }
.block-intro.small { font-size: .85rem; }

/* ---------------------------------------------------------------------- */
/* TABLES                                                                  */
/* ---------------------------------------------------------------------- */
.table-scroll { overflow-x: auto; border: 1px solid #e2e6f0; border-radius: var(--radius); }
.data-table { border-collapse: collapse; width: 100%; min-width: 640px; font-size: .87rem; }
.data-table th, .data-table td {
  padding: 9px 12px;
  border-bottom: 1px solid #e9ecf4;
  border-right: 1px solid #eef0f7;
  text-align: left;
  vertical-align: top;
}
.data-table thead th {
  background: var(--ink-800);
  color: #fff;
  font-weight: 600;
  font-size: .78rem;
  letter-spacing: .01em;
  position: sticky;
  top: 0;
  white-space: nowrap;
}
.data-table .prod-name { display: block; font-size: .84rem; }
.data-table .prod-sub { display: block; font-weight: 400; font-size: .68rem; color: var(--paper-dim); }
.data-table th.rowlabel {
  background: #f2f4f9;
  font-weight: 600;
  color: var(--ink-900);
  min-width: 190px;
  white-space: normal;
}
.data-table th.rowlabel-head { background: var(--ink-800); color: #fff; min-width: 190px; }
.data-table tbody tr:hover { background: #fbfbfd; }
.feature-table td { min-width: 220px; }
.feature-table th.rowlabel { min-width: 210px; }

/* Sizing table */
.sizing-table .numfield { width: 72px; }
.sizing-table thead tr:first-child th { text-align: center; }
tr.row-disabled { opacity: .45; }
.chk { display: flex; align-items: center; gap: 8px; cursor: pointer; font-weight: 600; white-space: nowrap; }
.chk input { width: 16px; height: 16px; accent-color: var(--amber-dim); }

/* Price / notes cells */
.price-cell { white-space: nowrap; }
.price-input { width: 100px; }
.curr { color: #7a8296; font-size: .8rem; margin-right: 2px; }
.per { color: #7a8296; font-size: .78rem; margin-left: 4px; }
.notes-cell { color: #5c657c; font-size: .8rem; min-width: 260px; }

/* Numeric text inputs (no native spinner — plain type-to-replace fields) */
.numfield {
  border: 1px solid #c7cede;
  border-radius: 4px;
  padding: 5px 7px;
  font-size: .85rem;
  font-variant-numeric: tabular-nums;
  background: #fff;
}
.numfield:focus { outline: 2px solid var(--amber); outline-offset: 1px; border-color: var(--amber-dim); }

/* Implementation-cost & grand-total row */
.impl-cells { display: flex; flex-wrap: wrap; gap: 10px; padding-top: 10px !important; }
.impl-input-wrap { display: flex; flex-direction: column; gap: 3px; font-size: .72rem; color: #5c657c; }
.impl-input { width: 110px; }
.grand-row { background: var(--accent-soft); }
.grand-row th.rowlabel { background: #dde6fb; }
.grand-cell { font-size: .8rem; padding: 2px 0; }

.years-control { margin-bottom: 12px; font-size: .88rem; }
.years-control select { padding: 5px 8px; border-radius: 4px; border: 1px solid #c7cede; font-size: .87rem; }

.scope-note { margin-top: 12px; font-size: .82rem; color: #5c657c; background: #f2f4f9; border-left: 3px solid var(--amber-dim); padding: 10px 14px; border-radius: 4px; }

/* ---------------------------------------------------------------------- */
/* CARD GRIDS (migration, references, licensing model)                    */
/* ---------------------------------------------------------------------- */
.card-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(260px, 1fr)); gap: 14px; }
.mig-card, .ref-card, .lic-card {
  border: 1px solid #e2e6f0;
  border-left: 4px solid var(--amber-dim);
  border-radius: 4px;
  padding: 14px 16px;
  background: #fafbfd;
}
.mig-card h4, .ref-card h4, .lic-card h4 { font-size: .92rem; margin-bottom: 6px; color: var(--ink-900); }
.mig-card .mig-tool { font-size: .78rem; font-weight: 600; color: var(--amber-dim); text-transform: none; margin-bottom: 6px; }
.mig-card p, .ref-card ul { font-size: .84rem; color: #444d63; margin: 0; }
.ref-card ul { padding-left: 18px; }
.ref-card li { margin-bottom: 5px; }
.lic-row { display: flex; justify-content: space-between; gap: 10px; font-size: .8rem; padding: 5px 0; border-top: 1px dashed #e2e6f0; }
.lic-row:first-of-type { border-top: none; }
.lic-row span:first-child { color: #7a8296; }
.lic-row strong { text-align: right; font-weight: 600; color: var(--ink-900); }

.summary-stack { display: flex; flex-direction: column; gap: 24px; }

/* ---------------------------------------------------------------------- */
/* FILE ACTIONS                                                            */
/* ---------------------------------------------------------------------- */
.file-actions { display: flex; gap: 10px; margin: 6px 0 30px; }
.save-btn, .open-btn, .reset-btn {
  appearance: none;
  border-radius: var(--radius);
  padding: 10px 20px;
  font-size: .88rem;
  font-weight: 600;
  cursor: pointer;
  transition: transform .1s ease, background .15s ease, box-shadow .15s ease;
  box-shadow: 0 1px 2px rgba(10,23,48,.08);
}
.save-btn { background: var(--accent); color: #fff; border: 1px solid var(--accent-dim); }
.save-btn:hover { background: var(--accent-dim); }
.open-btn { background: #fff; color: var(--ink-900); border: 1px solid #ccd4e6; }
.open-btn:hover { background: var(--accent-soft); border-color: var(--accent); }
.reset-btn { background: var(--ink-950); color: #fff; border: 1px solid var(--ink-950); }
.reset-btn:hover { background: var(--ink-800); }
.save-btn:active, .open-btn:active, .reset-btn:active { transform: translateY(1px); }

/* ---------------------------------------------------------------------- */
/* FOOTER                                                                  */
/* ---------------------------------------------------------------------- */
.site-footer {
  text-align: center;
  color: #7a8296;
  font-size: .78rem;
  padding: 18px 20px 34px;
  max-width: 900px;
  margin: 0 auto;
}

/* ---------------------------------------------------------------------- */
/* TAB 3 — POSITIONING CHART                                              */
/* ---------------------------------------------------------------------- */
.chart-card {
  background: #fafbfd;
  border: 1px solid #e2e6f0;
  border-radius: var(--radius);
  padding: 12px;
}
.chart-wrap { width: 100%; }
.positioning-svg { width: 100%; height: auto; display: block; }
.positioning-svg .gridline { stroke: #e6e9f2; stroke-width: 1; }
.positioning-svg .divider { stroke: #9aa5c2; stroke-width: 1.5; stroke-dasharray: 5 4; }
.positioning-svg .leader { stroke: #c7cede; stroke-width: 1; }
.positioning-svg .axis-tick { font-size: 11px; fill: #6b7590; font-family: var(--font-ui); }
.positioning-svg .axis-title { font-size: 12px; font-weight: 600; fill: #3a4360; font-family: var(--font-ui); }
.positioning-svg .quad-label { font-size: 10.5px; font-weight: 700; letter-spacing: .02em; fill: #8891ab; font-family: var(--font-ui); text-transform: uppercase; }
.positioning-svg .point-label { font-size: 12px; font-weight: 700; font-family: var(--font-ui); }

.legend-row { display: flex; flex-wrap: wrap; gap: 14px; padding: 10px 6px 2px; }
.legend-item { display: flex; align-items: center; gap: 6px; font-size: .8rem; color: #3a4360; font-weight: 600; }
.legend-dot { width: 10px; height: 10px; border-radius: 50%; display: inline-block; border: 1px solid rgba(0,0,0,.1); }

.score-table .score-cell { text-align: center; }
.score-table .score-input { width: 48px; text-align: center; }
.score-table th.rowlabel { min-width: 240px; }

/* ---------------------------------------------------------------------- */
/* LOAD ERROR (api.php unreachable)                                       */
/* ---------------------------------------------------------------------- */
.load-error {
  max-width: 640px;
  margin: 60px auto;
  background: #fff;
  border: 1px solid #e2b8b8;
  border-left: 4px solid #c0392b;
  border-radius: var(--radius);
  padding: 24px 28px;
}
.load-error h2 { color: #a33; font-size: 1.1rem; margin-bottom: 10px; }
.load-error p { color: #444d63; font-size: .9rem; margin: 6px 0; }
.load-error code { background: #f2f4f9; padding: 1px 6px; border-radius: 3px; font-size: .85em; }
.load-error-detail { margin-top: 14px !important; font-size: .8rem !important; color: #8a92a8 !important; font-family: monospace; }

/* ---------------------------------------------------------------------- */
/* RESPONSIVE                                                              */
/* ---------------------------------------------------------------------- */
@media (max-width: 640px) {
  .header-inner { flex-direction: column; align-items: flex-start; gap: 12px; }
  main { padding: 18px 14px 40px; }
  .block { padding: 16px 14px 20px; }
  .tabs { overflow-x: auto; }
}

/* Focus visibility for accessibility */
button:focus-visible, input:focus-visible, select:focus-visible {
  outline: 2px solid var(--amber);
  outline-offset: 2px;
}

@media (prefers-reduced-motion: reduce) {
  * { transition: none !important; }
}