/* ============================================================
   AUTH SPLIT LAYOUT — shared by login + register
   ------------------------------------------------------------
   A two-panel "card" centered on the page:
     • a media panel carrying an auto-rotating image carousel,
       tinted with the BPS royal→forest brand gradient, and
     • a form panel carrying the existing login / register form.
   The reference layout is replicated (structure, spacing,
   hierarchy, full-bleed rounded media panel) but the palette
   stays 100% BPS branding — royal blue, forest, gold, mint.

   Login  → media LEFT  / form RIGHT  (.auth-split--media-left)
   Register → media RIGHT / form LEFT  (.auth-split--media-right)
   ============================================================ */

/* ---- page shell ---------------------------------------------------- */
.auth-page {
  min-height: 100vh;
  background:
    radial-gradient(1200px 600px at 12% -10%, var(--royal-wash) 0%, transparent 55%),
    radial-gradient(1000px 700px at 110% 120%, var(--forest-wash) 0%, transparent 50%),
    #F4F6FB;
  display: flex;
  flex-direction: column;
}

.auth-wrapper {
  flex: 1;
  display: flex;
  align-items: stretch;       /* let the split fill the full height */
  justify-content: stretch;
  /* Full-screen, but with a small uniform gutter so the panel's rounded
     corners and shadow stay visible "floating" on the page background.
     Top offset accounts for the fixed 64px navbar. */
  padding: calc(var(--nav-height) + 20px) 20px 20px;
}

/* ---- the split panel (full-screen, rounded, carousel-dominant) ----- */
.auth-split {
  width: 100%;
  /* fill the viewport below the navbar, minus the wrapper gutter
     (20px top gap after the nav offset + 20px bottom) */
  min-height: calc(100vh - var(--nav-height) - 40px);
  align-self: stretch;
  display: grid;
  /* carousel (media) is the primary element — noticeably larger than the
     form column. ~1.7 : 1 split. */
  grid-template-columns: 1.7fr 1fr;
  background: var(--white);
  /* curved design elements preserved at full screen */
  border-radius: 24px;
  overflow: hidden;
  box-shadow:
    0 1px 2px rgba(27, 34, 48, .04),
    0 30px 70px rgba(30, 58, 138, .14);
  border: 1px solid var(--ds-line, #E6EAF1);
  animation: authCardIn .7s cubic-bezier(.2, .7, .2, 1) both;
}

@keyframes authCardIn {
  from { opacity: 0; transform: translateY(18px) scale(.992); }
  to   { opacity: 1; transform: translateY(0)    scale(1); }
}

/* media on the LEFT (login) → form is column 2 */
.auth-split--media-left .auth-split__media { grid-column: 1; }
.auth-split--media-left .auth-split__form  { grid-column: 2; }

/* media on the RIGHT (register) → form is column 1;
   flip the column proportions so the carousel stays the dominant panel */
.auth-split--media-right { grid-template-columns: 1fr 1.7fr; }
.auth-split--media-right .auth-split__media { grid-column: 2; }
.auth-split--media-right .auth-split__form  { grid-column: 1; }

/* ============================================================
   MEDIA PANEL — image carousel + brand tint + floating caption
   ============================================================ */
.auth-split__media {
  position: relative;
  overflow: hidden;
  min-height: 100%;
  isolation: isolate;
  background: var(--royal-deep); /* fallback while images load */
}

/* each slide stacks; fade between them */
.auth-slide {
  position: absolute;
  inset: 0;
  background-size: cover;
  background-position: center;
  opacity: 0;
  transform: scale(1.06);
  transition: opacity 1.1s ease, transform 7s ease;
  will-change: opacity, transform;
}
.auth-slide.is-active {
  opacity: 1;
  transform: scale(1);
}

/* BPS brand gradient tint — this is what keeps the page on-brand
   instead of inheriting the photos' own blue/teal colours */
.auth-split__media::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: 1;
  background:
    linear-gradient(150deg,
      rgba(30, 58, 138, .82) 0%,
      rgba(21, 48, 110, .72) 48%,
      rgba(11, 110, 59, .78) 100%);
  mix-blend-mode: multiply;
  pointer-events: none;
}

/* subtle darkening at the bottom so the caption stays legible */
.auth-split__media::after {
  content: "";
  position: absolute;
  inset: 0;
  z-index: 2;
  background: linear-gradient(to top,
      rgba(16, 37, 84, .55) 0%,
      transparent 42%);
  pointer-events: none;
}

/* ---- media foreground content (brand + caption + dots) ------------- */
.auth-media__inner {
  position: relative;
  z-index: 3;
  height: 100%;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  padding: 36px 38px;
  color: #fff;
}

.auth-media__brand {
  display: inline-flex;
  align-items: center;
  gap: 11px;
  align-self: flex-start;
  padding: 9px 16px 9px 10px;
  background: rgba(255, 255, 255, .12);
  border: 1px solid rgba(255, 255, 255, .28);
  border-radius: 999px;
  backdrop-filter: blur(6px);
  -webkit-backdrop-filter: blur(6px);
  /* override any global `a` link styling so the pill reads as brand chrome */
  text-decoration: none;
  color: #fff;
  transition: background .2s ease, border-color .2s ease;
}
.auth-media__brand:hover {
  background: rgba(255, 255, 255, .18);
  border-color: rgba(255, 255, 255, .45);
  text-decoration: none;
}
.auth-media__brand:focus-visible {
  outline: none;
  box-shadow: 0 0 0 3px rgba(255, 255, 255, .55);
}
.auth-media__brand img {
  width: 30px;
  height: 30px;
  border-radius: 50%;
  object-fit: cover;
  border: 1px solid rgba(255, 255, 255, .5);
}
.auth-media__brand span {
  font-family: var(--font-serif, 'Fraunces', Georgia, serif);
  font-weight: 600;
  font-size: 15px;
  letter-spacing: -.01em;
  white-space: nowrap;
  color: #fff;
}

.auth-media__caption {
  max-width: 380px;
}
.auth-media__eyebrow {
  display: inline-block;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 1.6px;
  text-transform: uppercase;
  color: var(--mint, #A8E49A);
  margin-bottom: 12px;
}
.auth-media__headline {
  font-family: var(--font-serif, 'Fraunces', Georgia, serif);
  font-weight: 600;
  font-size: clamp(24px, 2.4vw, 32px);
  line-height: 1.18;
  letter-spacing: -.015em;
  margin: 0 0 10px;
  text-shadow: 0 2px 18px rgba(16, 37, 84, .35);
}
.auth-media__sub {
  font-size: 14px;
  line-height: 1.6;
  color: rgba(255, 255, 255, .9);
  margin: 0;
}

/* slide indicator dots */
.auth-media__dots {
  display: flex;
  gap: 8px;
  margin-top: 22px;
}
.auth-media__dots button {
  width: 26px;
  height: 5px;
  padding: 0;
  border: none;
  border-radius: 999px;
  background: rgba(255, 255, 255, .35);
  cursor: pointer;
  transition: background .3s ease, width .3s ease;
}
.auth-media__dots button:hover { background: rgba(255, 255, 255, .6); }
.auth-media__dots button.is-active {
  width: 38px;
  background: var(--gold, #C0922E);
}
.auth-media__dots button:focus-visible {
  outline: none;
  box-shadow: 0 0 0 3px rgba(255, 255, 255, .55);
}

/* ============================================================
   FORM PANEL
   ============================================================ */
.auth-split__form {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 48px 44px;
  min-width: 0;            /* allow inner content to shrink */
}

.auth-form-inner {
  width: 100%;
  max-width: 400px;
}

/* (typography kept BPS — serif heading applied via design-system.css too) */
.auth-card__title {
  font-family: var(--font-serif, 'Fraunces', Georgia, serif);
  font-weight: 600;
  font-size: 28px;
  line-height: 1.15;
  letter-spacing: -.015em;
  color: var(--text-dark);
  margin-bottom: 6px;
}
.auth-card__subtitle {
  font-size: 14px;
  color: var(--text-body);
  margin-bottom: 30px;
  line-height: 1.5;
}

/* ===== FORM FIELDS (carried over from login.css / register.css) ===== */
.form-group { margin-bottom: 20px; }

.form-group label {
  display: block;
  font-weight: 600;
  font-size: 13.5px;
  color: var(--text-dark);
  margin-bottom: 7px;
}

.form-group input {
  width: 100%;
  padding: 13px 15px;
  border: 1.5px solid #E6EAF1;
  border-radius: 11px;
  font-family: var(--font-body);
  font-size: 14px;
  color: var(--text-dark);
  background: #FBFCFE;
  transition: border-color .25s ease, box-shadow .25s ease, background .25s ease;
  outline: none;
}
.form-group input::placeholder { color: #8A93A4; }
.form-group input:focus {
  border-color: var(--green-primary);
  background: var(--white);
  box-shadow: 0 0 0 3px rgba(30, 58, 138, .12);
}

/* password field + show/hide toggle */
.password-wrapper { position: relative; }
.password-wrapper input { padding-right: 46px; }
.password-toggle {
  position: absolute;
  right: 12px;
  top: 50%;
  transform: translateY(-50%);
  background: none;
  border: none;
  cursor: pointer;
  padding: 4px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #8A93A4;
  transition: color .25s ease;
}
.password-toggle:hover { color: var(--text-dark); }
.password-toggle svg { width: 20px; height: 20px; fill: currentColor; }

/* password strength meter (register) */
.password-strength {
  display: flex;
  gap: 6px;
  margin-top: 10px;
  align-items: center;
}
.strength-bar {
  flex: 1;
  height: 4px;
  border-radius: 2px;
  background: #e0e8e0;
  transition: background .3s ease;
}
.strength-bar.active.weak   { background: #e53935; }
.strength-bar.active.medium { background: var(--gold, #C0922E); }
.strength-bar.active.strong { background: var(--green-primary); }
.strength-text {
  font-size: 12px;
  font-weight: 600;
  margin-left: 8px;
  min-width: 132px;
}
.strength-text.weak   { color: #e53935; }
.strength-text.medium { color: var(--gold-deep, #8A6A18); }
.strength-text.strong { color: var(--green-primary); }

.password-requirements { margin: 8px 0 0; }

/* terms checkbox (register) */
.form-checkbox {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  margin-bottom: 24px;
  margin-top: 4px;
}
.form-checkbox input[type="checkbox"] {
  width: 18px;
  height: 18px;
  min-width: 18px;
  margin-top: 2px;
  accent-color: var(--green-primary);
  cursor: pointer;
}
.form-checkbox label {
  font-size: 13px;
  color: var(--text-body);
  line-height: 1.5;
  cursor: pointer;
}
.form-checkbox label a {
  color: var(--green-primary);
  text-decoration: none;
  font-weight: 600;
}
.form-checkbox label a:hover { text-decoration: underline; }

/* primary submit */
.auth-btn {
  width: 100%;
  padding: 15px;
  background: var(--green-primary);
  color: var(--white);
  font-family: var(--font-body);
  font-weight: 600;
  font-size: 15.5px;
  border: none;
  border-radius: 11px;
  cursor: pointer;
  transition: background .25s ease, transform .15s ease, box-shadow .25s ease;
  box-shadow: 0 4px 16px rgba(30, 58, 138, .28);
}
.auth-btn:hover {
  background: var(--green-dark);
  transform: translateY(-1px);
  box-shadow: 0 6px 22px rgba(30, 58, 138, .38);
}
.auth-btn:active { transform: translateY(0); }
.auth-btn:disabled {
  opacity: .7;
  cursor: not-allowed;
  transform: none;
  box-shadow: none;
}

/* footer link */
.auth-footer {
  text-align: center;
  margin-top: 22px;
  font-size: 14px;
  color: var(--text-body);
}
.auth-footer a {
  color: var(--green-primary);
  text-decoration: none;
  font-weight: 600;
}
.auth-footer a:hover { text-decoration: underline; }

/* inline forgot-password link row */
.auth-inline-link {
  text-align: right;
  margin-bottom: 16px;
}
.auth-inline-link a {
  font-size: 13px;
  color: var(--green-primary);
  text-decoration: none;
  font-weight: 500;
}
.auth-inline-link a:hover { text-decoration: underline; }

/* ============================================================
   RESPONSIVE
   ------------------------------------------------------------
   > 1280px : carousel dominant 1.7 : 1 (default rule above).
   881–1280px: gentler 1.35 : 1 so the form column still fits its
               400px content while the carousel stays the larger half.
   ≤ 880px  : stack — media banner on TOP (the primary visual),
              form BELOW; both keep rounded corners + gutter.
   ≤ 560px  : tighten padding.
   ============================================================ */
@media (max-width: 1280px) and (min-width: 881px) {
  .auth-split { grid-template-columns: 1.35fr 1fr ; }
  .auth-split__form { padding: 44px 36px; }
  .auth-form-inner { max-width: 380px; }
}

@media (max-width: 880px) {
  .auth-wrapper {
    /* small gutter on mobile too, so rounded corners stay visible */
    padding: calc(var(--nav-height) + 14px) 14px 14px;
  }
  .auth-split {
    grid-template-columns: 1fr;
    grid-template-rows: auto 1fr;   /* media banner + form fills the rest */
    min-height: calc(100vh - var(--nav-height) - 28px);
    max-width: none;
    width: 100%;
    border-radius: 22px;            /* preserve curves when stacked */
  }
  /* force a single, predictable stacking order regardless of side.
     The carousel stays the primary visual — a generous banner on top. */
  .auth-split__media,
  .auth-split--media-left .auth-split__media,
  .auth-split--media-right .auth-split__media {
    grid-column: 1;
    grid-row: 1;
    min-height: 240px;
    height: 38vh;
    max-height: 360px;
  }
  .auth-split__form,
  .auth-split--media-left .auth-split__form,
  .auth-split--media-right .auth-split__form {
    grid-column: 1;
    grid-row: 2;
    padding: 34px 28px 40px;
  }
  .auth-media__inner { padding: 20px 22px; }
  .auth-media__brand { padding: 7px 13px 7px 8px; gap: 9px; max-width: calc(100% - 4px); }
  .auth-media__brand img { width: 26px; height: 26px; }
  .auth-media__brand span { font-size: 13px; white-space: normal; line-height: 1.2; }
  .auth-media__caption { display: none; }   /* keep the banner clean */
  .auth-media__dots { margin-top: 0; }
  .auth-slide { transition: opacity 1s ease, transform 7s ease; }
}

@media (max-width: 560px) {
  .auth-split__form { padding: 28px 20px 34px; }
  .auth-card__title { font-size: 24px; }
}

/* respect reduced-motion preferences */
@media (prefers-reduced-motion: reduce) {
  .auth-split { animation: none; }
  .auth-slide {
    transition: opacity .4s ease;
    transform: none !important;
  }
}