/* FeToolKit — Analytical Tools
   Scoped styles for the interactive calculators adapted from the
   Engineering Research section of steveclamp.com. Everything here is
   namespaced under .research-import so it can sit inside a normal
   FeToolKit page without touching the site's own theme. */

.research-import {
  --void: #eef3f9;
  --deep: #e3ebf5;
  --panel: #ffffff;
  --surface: #f4f8fc;
  --edge: #c3d3e3;
  --steel: #4a76a8;
  --pulse: #0086b3;
  --hot: #cc5500;
  --solar: #a8790a;
  --text: #274764;
  --muted: #5c7590;
  --white: #16324f;
  --danger: #d1223f;

  background: var(--void);
  color: var(--text);
  font-family: 'Rajdhani', sans-serif;
  font-size: 17px;
  line-height: 1.6;
  border-radius: var(--radius, 26px);
  overflow: hidden;
}

.research-import * { box-sizing: border-box; }
.research-import sub { font-size: 0.7em; }

/* ─── SECTION PAGE LAYOUT (from steveclamp.com) ─── */
.research-import .section-page { padding: 0; }

.research-import .section-hero {
  position: relative;
  height: 260px;
  display: flex;
  align-items: flex-end;
  overflow: hidden;
  background: linear-gradient(135deg, #021018, #041428 60%, #062018);
}
.research-import .section-hero-bg {
  position: absolute;
  inset: 0;
  background-size: cover;
  background-position: center;
  filter: brightness(0.35) saturate(0.7);
}
.research-import .section-hero-gradient {
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, transparent 30%, var(--void) 100%);
}
.research-import .section-hero-content {
  position: relative;
  padding: 2.5rem 2.5rem 2rem;
  max-width: 900px;
}
.research-import .section-hero-num {
  font-family: 'Orbitron', monospace;
  font-size: 0.55rem;
  letter-spacing: 6px;
  color: var(--muted);
  text-transform: uppercase;
  margin-bottom: 0.8rem;
}
.research-import .section-hero-title {
  font-family: 'Orbitron', monospace;
  font-size: clamp(1.8rem, 4.5vw, 3rem);
  font-weight: 900;
  color: var(--white);
  line-height: 1.1;
  margin-bottom: 1rem;
}
.research-import .section-hero-sub {
  font-size: 1.05rem;
  color: var(--muted);
  font-weight: 300;
  letter-spacing: 2px;
  text-transform: uppercase;
}

.research-import .section-bar { height: 4px; width: 100%; }

.research-import .section-body {
  max-width: 1100px;
  margin: 0 auto;
  padding: 3rem 2rem 4rem;
}

.research-import p { color: var(--text); }
.research-import h3 { color: var(--white); }
.research-import a { color: var(--pulse); }
.research-import label { color: var(--text); }
.research-import input, .research-import select, .research-import textarea {
  font-family: inherit;
}
.research-import table { color: var(--text); }

/* ─── BACK BUTTON ─── */
.research-import .back-btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  background: transparent;
  border: 1px solid var(--edge);
  color: var(--muted);
  padding: 10px 20px;
  font-family: 'Rajdhani', sans-serif;
  font-size: 0.85rem;
  font-weight: 600;
  letter-spacing: 2px;
  text-transform: uppercase;
  cursor: pointer;
  transition: all 0.3s;
  margin-bottom: 2.5rem;
  text-decoration: none;
}
.research-import .back-btn:hover { border-color: var(--pulse); color: var(--pulse); }

/* ─── SECTION TABS ─── */
.research-import .sec-tabs { display: flex; gap: 4px; flex-wrap: wrap; margin-bottom: 2.5rem; border-bottom: 1px solid var(--edge); padding-bottom: 0; }
.research-import .sec-tab { background: transparent; border: 1px solid var(--edge); border-bottom: none; color: var(--muted); padding: 10px 20px; font-family: 'Orbitron', monospace; font-size: 0.65rem; font-weight: 700; letter-spacing: 2px; text-transform: uppercase; cursor: pointer; transition: all 0.3s; position: relative; top: 1px; }
.research-import .sec-tab:hover { color: var(--pulse); border-color: var(--pulse); }
.research-import .sec-tab.active { color: var(--pulse); border-color: var(--pulse); background: rgba(0,134,179,0.08); }
.research-import .sec-panel { display: none; }
.research-import .sec-panel-active { display: block; }

/* ─── MISSING-IMAGE PLACEHOLDER ───
   Used where the source image file wasn't available to copy over. */
.research-import .diagram-pending {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 0.4rem;
  text-align: center;
  min-height: 160px;
  padding: 1.5rem;
  border: 1px dashed var(--edge);
  border-radius: 4px;
  background: rgba(20,60,110,0.03);
}
.research-import .diagram-pending-icon { font-size: 1.8rem; opacity: 0.6; }
.research-import .diagram-pending-cap { color: var(--text); font-size: 0.85rem; max-width: 46ch; }
.research-import .diagram-pending-note { color: var(--muted); font-size: 0.68rem; letter-spacing: 1px; text-transform: uppercase; }

@media (max-width: 760px) {
  .research-import .section-hero-content { padding: 1.5rem; }
  .research-import .sec-tab { padding: 8px 14px; font-size: 0.58rem; }
}

/* ── ANSYS Model & Results Explorer — mock GUI window (Loading Parametric Study tab) ── */
.pp-window {
  border: 1px solid rgba(244,196,48,0.3);
  border-radius: 10px;
  overflow: visible;
  background: #ffffff;
  box-shadow: 0 18px 46px rgba(20,60,110,0.18);
}
.pp-titlebar {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 10px 14px;
  background: linear-gradient(180deg, #eef3f9, #dde8f2);
  border-bottom: 1px solid rgba(244,196,48,0.2);
  border-radius: 10px 10px 0 0;
}
.pp-dot { width: 11px; height: 11px; border-radius: 50%; display: inline-block; }
.pp-titletext {
  margin-left: 8px;
  font-family: 'Orbitron', monospace;
  font-size: 0.72rem;
  letter-spacing: 1px;
  color: #274764;
}
.pp-menubar {
  display: flex;
  gap: 2px;
  padding: 4px 8px;
  background: #f4f8fc;
  border-bottom: 1px solid rgba(244,196,48,0.15);
  position: relative;
}
.pp-menu { position: relative; }
.pp-menu-btn {
  background: transparent;
  border: none;
  color: #274764;
  font-size: 0.82rem;
  padding: 6px 12px;
  border-radius: 4px;
  cursor: pointer;
}
.pp-menu-btn:hover, .pp-menu.open .pp-menu-btn { background: rgba(244,196,48,0.15); color: #f4c430; }
.pp-menu-dropdown {
  display: none;
  position: absolute;
  top: 100%;
  left: 0;
  margin-top: 4px;
  background: #ffffff;
  border: 1px solid rgba(244,196,48,0.3);
  border-radius: 6px;
  min-width: 230px;
  box-shadow: 0 10px 30px rgba(20,60,110,0.25);
  z-index: 40;
  overflow: hidden;
}
.pp-menu.open .pp-menu-dropdown { display: block; }
.pp-menu-dropdown button {
  display: block;
  width: 100%;
  text-align: left;
  background: transparent;
  border: none;
  color: #274764;
  font-size: 0.82rem;
  padding: 9px 14px;
  cursor: pointer;
}
.pp-menu-dropdown button:hover { background: rgba(244,196,48,0.15); color: #f4c430; }
.pp-window-body { padding: 1rem 1.1rem; }
.pp-file-list { display: flex; flex-direction: column; gap: 0.5rem; }
.pp-file-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  background: rgba(244,196,48,0.06);
  border: 1px solid rgba(244,196,48,0.2);
  border-radius: 6px;
  padding: 8px 12px;
  font-size: 0.82rem;
  color: #e8f1ff;
}
.pp-file-row .pp-file-meta { color: #9fb3cc; font-size: 0.74rem; }
.pp-file-row button {
  background: transparent;
  border: 1px solid rgba(255,85,85,0.5);
  color: #ff8080;
  border-radius: 4px;
  padding: 3px 9px;
  cursor: pointer;
  font-size: 0.72rem;
}