/* ==========================================================================
   Auth + checkout screens. Loaded on top of app.css, only where needed.
   ========================================================================== */

.auth-body { display: grid; place-items: center; padding: 2rem 1rem; }
.auth-shell { width: 100%; max-width: 26rem; position: relative; z-index: 1; }
.auth-brand { justify-content: center; margin-bottom: 1.6rem; font-size: 1rem; }

.auth-card {
  border: 1px solid var(--line-strong); border-radius: var(--r-xl);
  background: radial-gradient(110% 80% at 50% 0%, rgba(139,92,246,.15), transparent 60%), rgba(10,10,18,.78);
  backdrop-filter: blur(20px); -webkit-backdrop-filter: blur(20px);
  padding: clamp(1.5rem, 4vw, 2.2rem); box-shadow: var(--shadow-lg);
  position: relative; overflow: hidden;
}
.auth-card::before { content: ""; position: absolute; inset: 0 0 auto; height: 1px;
  background: linear-gradient(90deg, transparent, var(--cyan), var(--violet), transparent); }
.auth-card__title { font-size: 1.5rem; margin-bottom: .4rem; }
.auth-card__lead { color: var(--text-2); font-size: var(--fs-sm); margin-bottom: 1.6rem; }

.auth-foot { text-align: center; margin-top: 1.5rem; font-size: var(--fs-xs);
  color: var(--text-3); display: flex; justify-content: center; gap: .6rem; }
.auth-foot a { color: var(--text-3); }
.auth-foot a:hover { color: var(--cyan); }

.auth-links { display: flex; justify-content: space-between; align-items: center; gap: 1rem;
  margin-top: 1.2rem; font-size: var(--fs-xs); color: var(--text-3); }
.auth-links a { color: var(--cyan); }

.password-wrap { position: relative; }
.password-wrap .input { padding-right: 3rem; }
.password-toggle { position: absolute; right: .55rem; top: 50%; transform: translateY(-50%);
  background: none; border: 0; color: var(--text-3); cursor: pointer; padding: .4rem;
  border-radius: 8px; line-height: 0; }
.password-toggle:hover { color: var(--text); background: var(--glass); }

.pw-meter { display: grid; gap: .35rem; margin-top: .5rem; }
.pw-meter__bar { height: 4px; border-radius: 2px; background: var(--ink-600); overflow: hidden; }
.pw-meter__fill { height: 100%; width: 0; border-radius: 2px; background: var(--danger);
  transition: width .3s var(--ease), background .3s; }
.pw-meter__fill.is-fair   { background: var(--amber); }
.pw-meter__fill.is-good   { background: var(--cyan); }
.pw-meter__fill.is-strong { background: var(--lime); }
.pw-meter__label { font-size: var(--fs-xs); color: var(--text-3); }

/* ------------------------------------------------------------- checkout */

.checkout-bar { border-bottom: 1px solid var(--line); background: rgba(6,6,11,.72);
  backdrop-filter: blur(20px); -webkit-backdrop-filter: blur(20px); position: sticky; top: 0; z-index: 100; }
.checkout-bar__inner { max-width: var(--container); margin-inline: auto; padding: 1rem var(--gutter);
  display: flex; align-items: center; justify-content: space-between; gap: 1rem; }
.checkout-bar__secure { display: inline-flex; align-items: center; gap: .45rem;
  font-size: var(--fs-xs); color: var(--text-3); }
.checkout-bar__secure svg { color: var(--lime); }

.checkout-grid { display: grid; grid-template-columns: minmax(0,1.15fr) minmax(0,.85fr);
  gap: clamp(1.5rem, 3vw, 2.5rem); align-items: start; padding-block: clamp(2rem, 4vw, 3.5rem); }

.checkout-panel { border: 1px solid var(--line); border-radius: var(--r-lg);
  background: var(--glass); padding: clamp(1.3rem, 2.5vw, 2rem); }
.checkout-panel__title { font-size: 1.15rem; margin-bottom: 1.3rem;
  display: flex; align-items: center; gap: .6rem; }
.checkout-panel__step { width: 26px; height: 26px; border-radius: 8px; display: grid; place-items: center;
  background: var(--grad); color: #05050A; font-size: .78rem; font-weight: 800; flex-shrink: 0; }

.summary { position: sticky; top: calc(72px + 1.5rem); border: 1px solid var(--line-strong);
  border-radius: var(--r-lg); padding: clamp(1.3rem, 2.5vw, 1.8rem); overflow: hidden;
  background: radial-gradient(110% 80% at 50% 0%, rgba(139,92,246,.14), transparent 60%), var(--ink-800); }
.summary__course { display: flex; gap: .9rem; padding-bottom: 1.1rem;
  border-bottom: 1px solid var(--line); margin-bottom: 1.1rem; }
.summary__thumb { width: 56px; height: 56px; border-radius: 12px; background: var(--grad-soft);
  border: 1px solid var(--line-strong); display: grid; place-items: center; color: var(--cyan); flex-shrink: 0; }
.summary__name { font-family: var(--font-display); font-weight: 650; font-size: .95rem; line-height: 1.35; }
.summary__meta { font-size: var(--fs-xs); color: var(--text-3); margin-top: .2rem; }
.summary__lines { display: grid; gap: .6rem; font-size: var(--fs-sm); }
.summary__line { display: flex; justify-content: space-between; gap: 1rem; color: var(--text-2); }
.summary__line strong { color: var(--text); font-variant-numeric: tabular-nums; }
.summary__line--discount, .summary__line--discount strong { color: var(--lime); }
.summary__line--muted { color: var(--text-3); font-size: var(--fs-xs); }
.summary__total { display: flex; justify-content: space-between; align-items: baseline; gap: 1rem;
  margin-top: 1.1rem; padding-top: 1.1rem; border-top: 1px solid var(--line); }
.summary__total-label { font-weight: 600; }
.summary__total-value { font-family: var(--font-display); font-size: 1.6rem; font-weight: 750;
  letter-spacing: -.03em; font-variant-numeric: tabular-nums;
  background: var(--grad); -webkit-background-clip: text; background-clip: text; color: transparent; }

.coupon-row { display: flex; gap: .5rem; }
.coupon-row .input { text-transform: uppercase; letter-spacing: .06em; }
.coupon-row .btn { flex-shrink: 0; }
.coupon-msg { font-size: var(--fs-xs); margin-top: .5rem; display: none; }
.coupon-msg.is-ok { color: var(--lime); display: block; }
.coupon-msg.is-error { color: var(--danger); display: block; }
.coupon-applied { display: none; align-items: center; gap: .5rem; padding: .55rem .8rem;
  border-radius: var(--r-sm); background: rgba(163,230,53,.1); border: 1px solid rgba(163,230,53,.3);
  font-size: var(--fs-xs); color: var(--lime); }
.coupon-applied.is-visible { display: flex; }
.coupon-applied button { margin-left: auto; background: none; border: 0; color: var(--text-3);
  cursor: pointer; padding: 0 .2rem; line-height: 1; }
.coupon-applied button:hover { color: var(--danger); }

.trust-row { display: flex; flex-wrap: wrap; gap: .8rem 1.2rem; margin-top: 1.2rem;
  padding-top: 1.2rem; border-top: 1px solid var(--line); font-size: var(--fs-xs); color: var(--text-3); }
.trust-row span { display: inline-flex; align-items: center; gap: .4rem; }

.test-banner { display: flex; align-items: center; gap: .6rem; padding: .7rem 1rem;
  border-radius: var(--r-sm); background: rgba(251,191,36,.12); border: 1px solid rgba(251,191,36,.35);
  color: var(--amber); font-size: var(--fs-xs); margin-bottom: 1.2rem; }

.result-shell { min-height: 100vh; display: grid; place-items: center; padding: 2rem 1rem; }
.result-card { max-width: 34rem; text-align: center; border: 1px solid var(--line-strong);
  border-radius: var(--r-xl); background: rgba(10,10,18,.8);
  backdrop-filter: blur(20px); -webkit-backdrop-filter: blur(20px);
  padding: clamp(1.8rem, 4vw, 3rem); box-shadow: var(--shadow-lg); }
.result-icon { width: 76px; height: 76px; border-radius: 50%; display: grid; place-items: center; margin: 0 auto 1.4rem; }
.result-icon--ok { background: rgba(163,230,53,.12); border: 1px solid rgba(163,230,53,.4); color: var(--lime); }
.result-icon--fail { background: rgba(251,113,133,.12); border: 1px solid rgba(251,113,133,.4); color: var(--danger); }

.receipt { text-align: left; border: 1px solid var(--line); border-radius: var(--r-md);
  background: var(--glass); padding: 1.1rem 1.3rem; margin: 1.6rem 0; display: grid; gap: .55rem;
  font-size: var(--fs-sm); }
.receipt__row { display: flex; justify-content: space-between; gap: 1rem; color: var(--text-2); }
.receipt__row strong { color: var(--text); font-variant-numeric: tabular-nums; }

:root[data-theme="light"] .auth-card, :root[data-theme="light"] .summary,
:root[data-theme="light"] .result-card, :root[data-theme="light"] .checkout-panel {
  background: radial-gradient(110% 80% at 50% 0%, rgba(124,58,237,.07), transparent 60%), #FFFFFF;
  backdrop-filter: none; -webkit-backdrop-filter: none; box-shadow: var(--shadow-sm);
}
:root[data-theme="light"] .checkout-bar { background: rgba(255,255,255,.82); }

@media (max-width: 900px) {
  .checkout-grid { grid-template-columns: 1fr; }
  /* Show what they are buying before the form on mobile. */
  .checkout-grid > .summary { position: static; order: -1; }
}