/* ── Submit row ───────────────────────────────────────────────── */
.submit-row { display: flex; justify-content: flex-end; gap: .75rem; }

.btn-primary {
  background: var(--accent);
  color: #fff;
  border: none;
  border-radius: var(--radius-sm);
  padding: .7rem 2.2rem;
  font-size: .95rem;
  font-weight: 600;
  cursor: pointer;
  transition: transform .15s, box-shadow .25s, opacity .2s;
  box-shadow: 0 2px 8px rgba(26,77,46,.22);
  display: inline-flex; align-items: center; gap: .5rem;
  flex-shrink: 0;
  width: auto;
}
.btn-primary:hover:not(:disabled) {
  transform: translateY(-1px);
  background: var(--accent-h);
  box-shadow: 0 4px 16px rgba(26,77,46,.28);
}
.btn-primary:active:not(:disabled) {
  transform: translateY(0);
}
.btn-primary:disabled { opacity: .4; cursor: not-allowed; transform: none; box-shadow: none; }

.btn-primary .spinner {
  width: 16px; height: 16px;
  border: 2px solid rgba(255,255,255,.3);
  border-top-color: #fff;
  border-radius: 50%;
  animation: spin .6s linear infinite;
  display: none;
}
.btn-primary.loading .spinner { display: block; }

.btn-secondary {
  background: transparent;
  color: var(--accent);
  border: 2px solid var(--accent);
  border-radius: var(--radius-sm);
  padding: .7rem 2.2rem;
  font-size: .95rem;
  font-weight: 600;
  cursor: pointer;
  transition: transform .15s, box-shadow .25s, opacity .2s, background .2s;
  display: flex; align-items: center; gap: .5rem;
}
.btn-secondary:hover:not(:disabled) {
  background: var(--accent-glow);
  transform: translateY(-1px);
  box-shadow: 0 4px 16px rgba(26,77,46,.16);
}
.btn-secondary:active:not(:disabled) {
  transform: translateY(0);
}
.btn-secondary:disabled { opacity: .4; cursor: not-allowed; transform: none; box-shadow: none; }

.btn-secondary .spinner {
  width: 16px; height: 16px;
  border: 2px solid rgba(58,158,110,.3);
  border-top-color: var(--accent);
  border-radius: 50%;
  animation: spin .6s linear infinite;
  display: none;
}
.btn-secondary.loading .spinner { display: block; }

/* @keyframes spin defined in base.css */

/* ── Next-step rotating border glow ────────────────────────────── */
@keyframes btn-border-rotate {
  to { transform: translate(-50%, -50%) rotate(360deg); }
}

/* Pulse: ~2.5s on → gradual fade out → hold dim → gradual fade in (6s cycle) */
@keyframes btn-glow-pulse {
  0%       { opacity: 1; }
  40%      { opacity: 1; }
  58%      { opacity: 0; }
  82%      { opacity: 0; }
  100%     { opacity: 1; }
}
@keyframes btn-glow-shadow {
  0%       { box-shadow: 0 0 28px 8px rgba(45,122,79,.45); }
  40%      { box-shadow: 0 0 28px 8px rgba(45,122,79,.45); }
  58%      { box-shadow: 0 0 0 0 rgba(45,122,79,0); }
  82%      { box-shadow: 0 0 0 0 rgba(45,122,79,0); }
  100%     { box-shadow: 0 0 28px 8px rgba(45,122,79,.45); }
}

.btn-glow:not(:disabled) {
  position: relative;
  overflow: hidden;
  z-index: 0;
  animation: btn-glow-shadow 6s ease-in-out infinite;
}

/* Rotating conic-gradient border ring */
.btn-glow:not(:disabled)::before {
  content: '';
  position: absolute;
  top: 50%; left: 50%;
  width: 300%; height: 300%;
  background: conic-gradient(
    rgba(45,122,79,0) 0deg,
    #c6f6d5 30deg,
    #a8edbe 60deg,
    #3a9e6e 100deg,
    #2d7a4f 140deg,
    rgba(45,122,79,0) 180deg
  );
  transform: translate(-50%, -50%) rotate(0deg);
  animation: btn-border-rotate 1.6s linear infinite,
             btn-glow-pulse 6s ease-in-out infinite;
  z-index: -2;
}

/* Inner fill — covers conic layer, leaving only border ring */
.btn-glow:not(:disabled)::after {
  content: '';
  position: absolute;
  inset: 2px;
  background: linear-gradient(135deg, var(--accent), var(--accent-h));
  border-radius: calc(var(--radius-sm) - 2px);
  z-index: -1;
}

.btn-glow:not(:disabled):hover::before {
  animation-play-state: paused;
}