/* Layout shell */
.app{ min-height:100vh; }
.main{
  padding: var(--space-8);
  max-width:1100px;
  margin:0 auto;
}

/* Header */
.header{
  display:flex;
  justify-content:space-between;
  align-items:center;
  margin-bottom: var(--space-6);
}
.header__title{
  font-size: var(--text-18);
  font-weight:500;
  letter-spacing:0.04em;
  margin:0;
  margin-bottom: 15px;
}
.status{
  font-size: var(--text-12);
  color: var(--text-muted);
}

/* Panel */
.panel{
  background: linear-gradient(180deg, rgba(255,255,255,0.03), rgba(255,255,255,0.015));
  border: 1px solid rgba(255,255,255,0.05);
  padding: var(--space-5);

  border-radius: var(--radius-3);
  box-shadow: 0 10px 30px rgba(0,0,0,0.25);

  transition: border-color 140ms ease, background 140ms ease, transform 140ms ease;
}

/* Make panels breathe; only "tighten" on hover */
.panel:hover{
  border-color: rgba(255,255,255,0.08);
  background: linear-gradient(180deg, rgba(255,255,255,0.035), rgba(255,255,255,0.02));
  
}
.panel--mt{ margin-top: var(--space-5); }

.panel__title{
  font-size: var(--text-11);
  letter-spacing:0.14em;
  text-transform:uppercase;
  color: var(--text-muted);
  margin-bottom: var(--space-3);
}

/* Route row */
.route-row{
  display:flex;
  align-items:center;
  gap: var(--space-3);
}

.route-row .select-wrap{
  flex: 1 1 0;
  min-width: 220px;
}

.route-row .arrow{
  flex: 0 0 auto;
}

/* Optional: on very narrow screens, allow wrapping */
@media (max-width: 520px){
  .route-row{ flex-wrap:wrap; }
}

/* Inputs */
.select,
.textarea,
.input{
  background: var(--bg-panel-alt);
  color: var(--text-main);
  border: var(--border-1);
  border-radius: var(--radius-2);
  outline: none;

  transition: border-color 120ms ease, filter 120ms ease;
}

.select:focus,
.textarea:focus,
.input:focus{
  filter: brightness(1.08);
}

.select{
  width:100%;
  padding: 8px 12px;
  font-size: var(--text-13);
}

.textarea{
  width:100%;
  min-height:240px;
  padding: var(--space-3);
  font-family:inherit;
  font-size: var(--text-13);
  line-height:1.55;
  resize:vertical;
}

.input{
  padding: 10px 12px;
  font-size: var(--text-13);
}

.checkbox{ width:14px; height:14px; }

/* Buttons */
.btn{
  background: var(--bg-panel);
  border: var(--border-1);
  color: var(--text-main);

  padding: 12px 14px;
  font-size: var(--text-13);

  border-radius: var(--radius-2);
  cursor:pointer;

  transition: filter 120ms ease, transform 120ms ease, background 120ms ease;
  text-decoration:none;
  display:inline-flex;
  align-items:center;
  gap:8px;
}

.btn:hover{ filter: brightness(1.08); }
.btn:active{ transform: translateY(1px); }

.btn--primary{ background: var(--bg-panel-alt); }

.btn--ghost{
  background: transparent;
  border-color: transparent;
}

.btn--ghost:hover{
  background: var(--bg-panel-alt);
  border-color: var(--border-default);
}

.btn__icon{
  color: var(--text-muted);
  font-size: 12px;
}

/* Popover */
.popover{
  position: absolute;
  top: calc(100% + 10px);
  right: 0;
  width: 300px;
  max-width: min(300px, calc(100vw - 24px));
  background: var(--bg-panel);
  border: var(--border-1);
  padding: 18px;
  z-index: 20;

  border-radius: var(--radius-3);
  box-shadow: var(--shadow-1);
}

.options-anchor{
  position: relative;
  display: inline-block;
}

@media (max-width: 640px){
  .options-anchor{ position: static; }

  .popover{
    position: fixed;
    left: 12px;
    right: 12px;
    top: auto;
    bottom: 12px;
    width: auto;
    max-width: none;
    border-radius: var(--radius-3);
  }
}

.pop__title{
  font-size: var(--text-11);
  letter-spacing:0.12em;
  text-transform:uppercase;
  color: var(--text-muted);
  margin-bottom: 10px;
}
.pop__block--mt{ margin-top:14px; }
.select--pop{ padding: 10px 12px; }
.input--pop{ width:86px; }

.pop__inline{
  display:flex;
  align-items:center;
  gap:10px;
}
.pop__suffix{
  color: var(--text-muted);
  font-size: var(--text-13);
}
.pop__check{
  display:flex;
  align-items:center;
  gap:10px;
  margin-top:14px;
  font-size: var(--text-13);
}

/* Processing grid */
.proc-grid{
  display:grid;
  grid-template-columns:repeat(4, 1fr);
  gap: var(--space-4);
}
.proc-cell{
  background: var(--bg-panel-alt);
  border: var(--border-1);
  padding: var(--space-3);
  border-radius: var(--radius-2);
}
.label{
  font-size: var(--text-11);
  letter-spacing:0.12em;
  text-transform:uppercase;
  color: var(--text-muted);
  margin-bottom: 10px;
}

.yield-box{
  grid-column:span 2;
  background: var(--bg-panel-alt);
  border: var(--border-1);
  padding: var(--space-3);
  display:flex;
  justify-content:space-between;
  align-items:center;
  gap: var(--space-4);
  border-radius: var(--radius-2);
}
.yield-left{ display:flex; flex-direction:column; gap:6px; }
.yield-hint{ font-size: var(--text-12); color: var(--text-muted); }
.yield-value{ font-size: 18px; font-weight:500; }

/* Utility */
.muted{ color: var(--text-muted); font-size: var(--text-13); }
.footer{ margin-top: var(--space-8); font-size: var(--text-11); color: var(--text-muted); }

.btn--soft{
  background: rgba(255,255,255,0.045);
  border-color: rgba(255,255,255,0.06);
}

.btn--soft:hover{
  background: rgba(255,255,255,0.06);
  border-color: rgba(255,255,255,0.08);
}