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/* =========================================================================
   auth.css — login + dashboard dreamy surfaces
   Frosted glass cards, rose CTAs, 44px+ touch targets, soft glows.
   Builds on tokens.css (colors, type, motion) + base.css (buttons).
   ========================================================================= */

/* ---- shared page shell ------------------------------------------------ */
.auth-shell {                          /* centers content vertically + horizontally */
  min-height: 100vh;                   /* full viewport height */
  min-height: 100svh;                  /* small viewport units for mobile browsers */
  display: flex;                       /* flexbox column for centering */
  flex-direction: column;              /* stack header / card / footer */
  align-items: center;                 /* horizontal center */
  justify-content: center;             /* vertical center (fallback for old browsers) */
  justify-content: safe center;        /* when content overflows, anchor to top so the */
                                       /* toast/button never slide up under the fixed nav */
  padding: clamp(5.5rem, 14vh, 7rem) var(--gut) calc(var(--gut) * 1.5); /* big top pad clears the nav pill */
  position: relative;                  /* let glows position against this */
  z-index: 1;                          /* sit above the scene (z 0), below whale (z 2) */
}

/* soft rose glow that sits behind the card (pure decoration) */
.auth-glow {                           /* radial blush halo */
  position: absolute;                  /* relative to .auth-shell */
  width: 60vmin;                       /* responsive diameter */
  height: 60vmin;                      /* keep it circular */
  background: radial-gradient(circle,  /* rose center fading out */
    rgba(255, 143, 171, 0.35) 0%,      /* warm rose core */
    rgba(255, 143, 171, 0.10) 45%,     /* mid fade */
    transparent 72%);                  /* fully transparent edge */
  border-radius: 50%;                  /* circle */
  filter: blur(40px);                  /* soften into a haze */
  z-index: -1;                         /* sit behind the card */
  top: 50%;                            /* vertically centered */
  left: 50%;                           /* horizontally centered */
  transform: translate(-50%, -50%);    /* perfect center */
  pointer-events: none;                /* never block clicks */
  animation: glow-breathe 6s var(--ease-flow) infinite alternate; /* slow pulse */
}
@keyframes glow-breathe {              /* the halo gently swells + contracts */
  from { transform: translate(-50%, -50%) scale(0.92); opacity: 0.7; } /* smaller, dimmer */
  to   { transform: translate(-50%, -50%) scale(1.08); opacity: 1; }   /* larger, brighter */
}

/* ---- the frosted card ------------------------------------------------- */
.auth-card {                           /* the glass panel holding the form / dashboard bits */
  width: 100%;                         /* fill column up to max */
  max-width: 460px;                    /* login card max width */
  background: var(--panel);            /* frosted cloud white */
  backdrop-filter: blur(24px) saturate(140%); /* frost the scene behind */
  -webkit-backdrop-filter: blur(24px) saturate(140%); /* safari prefix */
  border: 1px solid var(--panel-border); /* soft rose hairline */
  border-radius: var(--radius-card);   /* 22px rounded corners */
  padding: clamp(2rem, 5vw, 3rem);     /* generous internal padding */
  box-shadow:                          /* layered soft shadows for float */
    0 30px 60px -20px rgba(61, 44, 78, 0.28), /* deep drop */
    0 8px 20px -8px rgba(255, 143, 171, 0.22); /* warm rose tint */
  position: relative;                  /* anchor the mascot */
  animation: card-rise 0.8s var(--ease-soft) both; /* gentle entrance */
}
@keyframes card-rise {                 /* card floats up + fades in */
  from { opacity: 0; transform: translateY(24px); } /* start low + invisible */
  to   { opacity: 1; transform: translateY(0); }    /* settle into place */
}

/* mini whale mascot perched on the card top */
.auth-mascot {                         /* small floating whale above the card */
  width: 120px;                        /* compact whale */
  margin: 0 auto -10px;                /* center + overlap the card top */
  display: block;                      /* block so margin auto centers */
  animation: mascot-bob 5s var(--ease-flow) infinite alternate; /* gentle hover */
}
@keyframes mascot-bob {                /* the whale bobs up and down */
  from { transform: translateY(0); }   /* resting position */
  to   { transform: translateY(-8px); } /* lifted slightly */
}

/* ---- headings on auth pages ------------------------------------------ */
.auth-card h1 {                        /* main heading inside the card */
  font-family: var(--font-display);    /* Comfortaa rounded display */
  font-size: var(--step-h3);           /* fluid heading size */
  font-weight: 700;                    /* bold */
  color: var(--ink);                   /* plum-charcoal */
  text-align: center;                  /* centered under mascot */
  margin: 0 0 0.5rem;                  /* tight space below */
  line-height: 1.15;                   /* airy line height */
}
.auth-sub {                            /* subtitle paragraph under heading */
  text-align: center;                  /* match heading alignment */
  color: var(--ink-soft);              /* muted plum */
  font-size: var(--step-body);         /* body size */
  margin: 0 0 2rem;                    /* space before the form */
  line-height: 1.6;                    /* readable */
  max-width: 34ch;                     /* cap line length */
  margin-left: auto;                   /* center the cap */
  margin-right: auto;                  /* center the cap */
}

/* ---- form fields ------------------------------------------------------ */
.field {                               /* one labeled input block */
  margin-bottom: 1.25rem;              /* spacing between fields */
}
.field > label {                        /* the label ABOVE the input */
  display: block;                       /* full width row */
  font-size: var(--step-small);         /* small label text */
  font-weight: 700;                     /* bold label */
  color: var(--ink-soft);               /* muted plum */
  margin-bottom: 0.5rem;                /* gap between label + input */
  letter-spacing: 0.02em;               /* slight tracking */
}
.input-wrap {                          /* relative wrapper for input + toggle */
  position: relative;                  /* anchor the eye button */
  display: flex;                       /* so the toggle aligns right */
  align-items: center;                 /* vertically center the toggle */
}
.input-wrap input,
.input-wrap textarea,
.input-wrap select {                   /* the field itself */
  width: 100%;                         /* fill the wrapper */
  min-height: 52px;                    /* ≥44px touch target + comfort */
  padding: 0.85rem 1rem;               /* inner spacing */
  padding-right: 3rem;                 /* room for the eye toggle */
  font-family: var(--font-body);       /* Nunito body font */
  font-size: var(--step-body);         /* body size */
  color: var(--ink);                   /* plum text */
  background: rgba(255, 255, 255, 0.55); /* translucent white fill */
  border: 1.5px solid var(--panel-border); /* soft rose border */
  border-radius: 14px;                 /* rounded field */
  outline: none;                       /* we draw our own focus ring */
  transition: border-color var(--dur-fast) var(--ease-gentle), /* smooth focus */
              box-shadow var(--dur-fast) var(--ease-gentle),   /* smooth glow */
              background var(--dur-fast) var(--ease-gentle);   /* smooth fill */
}
.input-wrap input::placeholder,
.input-wrap textarea::placeholder {    /* placeholder styling */
  color: rgba(107, 90, 126, 0.5);      /* faint plum */
}
.input-wrap input:focus,
.input-wrap textarea:focus,
.input-wrap select:focus {             /* focus state — rose ring */
  border-color: var(--rose);           /* rose border on focus */
  background: rgba(255, 255, 255, 0.8); /* brighter fill on focus */
  box-shadow: 0 0 0 4px rgba(255, 143, 171, 0.18); /* soft rose halo */
}
.input-wrap textarea {                 /* multiline fields (playground) */
  min-height: 120px;                   /* taller for messages */
  resize: vertical;                    /* let users drag taller */
  padding-right: 1rem;                 /* no eye toggle on textarea */
  line-height: 1.6;                    /* readable lines */
}
.input-wrap select {                   /* dropdown (model picker) */
  appearance: none;                    /* kill native chrome */
  -webkit-appearance: none;            /* safari too */
  cursor: pointer;                     /* indicate it's clickable */
  padding-right: 2.5rem;               /* room for custom arrow */
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8' viewBox='0 0 12 8'%3E%3Cpath fill='none' stroke='%236B5A7E' stroke-width='2' stroke-linecap='round' stroke-linejoin='round' d='M1 1.5l5 5 5-5'/%3E%3C/svg%3E"); /* chevron */
  background-repeat: no-repeat;        /* don't tile */
  background-position: right 1rem center; /* park chevron at right */
}

/* show/hide eye toggle inside password-style inputs */
.eye-toggle {                          /* the eye button */
  position: absolute;                  /* pinned inside the wrapper */
  right: 0.5rem;                       /* tucked at the right edge */
  background: transparent;             /* no fill */
  border: none;                        /* no border */
  cursor: pointer;                     /* pointer cursor */
  padding: 0.5rem;                     /* 44px-ish hit area */
  color: var(--ink-soft);              /* muted icon */
  border-radius: 10px;                 /* rounded hover surface */
  display: grid;                       /* center the svg */
  place-items: center;                 /* dead center */
  transition: color var(--dur-fast) var(--ease-gentle), /* smooth color */
              background var(--dur-fast) var(--ease-gentle); /* smooth bg */
}
.eye-toggle:hover {                    /* hover feedback */
  color: var(--rose);                  /* rose on hover */
  background: rgba(255, 143, 171, 0.12); /* faint rose wash */
}
.eye-toggle svg {                       /* the eye icon */
  width: 20px;                         /* icon size */
  height: 20px;                        /* icon size */
}

/* ---- error message below a field ------------------------------------- */
.field-error {                         /* red error text under a field */
  color: var(--rose-deep);             /* deep rose for errors */
  font-size: var(--step-small);        /* small text */
  font-weight: 600;                    /* semibold */
  margin-top: 0.5rem;                   /* gap below the input */
  min-height: 1.25rem;                  /* reserve space so layout doesn't jump */
  display: flex;                       /* icon + text row */
  align-items: center;                 /* vertically align */
  gap: 0.4rem;                         /* space between icon + text */
  opacity: 0;                          /* hidden by default */
  transform: translateY(-4px);         /* start slightly up */
  transition: opacity var(--dur-fast) var(--ease-soft), /* fade in */
              transform var(--dur-fast) var(--ease-soft); /* slide in */
}
.field-error.is-visible {              /* shown state */
  opacity: 1;                          /* visible */
  transform: translateY(0);            /* settled */
  animation: shake 0.4s var(--ease-gentle); /* one-shot wiggle */
}
@keyframes shake {                      /* error wiggle */
  0%, 100% { transform: translateX(0); } /* rest */
  25% { transform: translateX(-5px); }   /* left */
  75% { transform: translateX(5px); }    /* right */
}

/* ---- primary CTA with loading spinner -------------------------------- */
.auth-submit {                         /* the main form button */
  width: 100%;                         /* full width */
  min-height: 54px;                    /* generous touch target */
  margin-top: 0.5rem;                   /* slight gap above */
  font-family: var(--font-display);    /* Comfortaa */
  font-size: 1.05rem;                  /* readable */
  font-weight: 700;                    /* bold */
  display: inline-flex;                /* spinner + text row */
  align-items: center;                 /* vertical center */
  justify-content: center;             /* horizontal center */
  gap: 0.6rem;                         /* space between spinner + label */
}
.auth-submit .spinner {                /* the loading spinner */
  width: 18px;                         /* spinner size */
  height: 18px;                        /* spinner size */
  border: 2.5px solid rgba(255, 255, 255, 0.5); /* white track */
  border-top-color: #fff;              /* solid leading edge */
  border-radius: 50%;                  /* circle */
  animation: spin 0.7s linear infinite; /* constant spin */
  display: none;                       /* hidden until loading */
}
.auth-submit.is-loading .spinner { display: block; } /* show when loading */
.auth-submit.is-loading .label { opacity: 0.7; }      /* dim label when loading */
.auth-submit.is-loading { pointer-events: none; }     /* block double-submit */
@keyframes spin { to { transform: rotate(360deg); } } /* full rotation */

/* ---- helper links under the form ------------------------------------- */
.auth-helpers {                        /* row of small links */
  margin-top: 1.5rem;                   /* gap below the button */
  text-align: center;                  /* centered */
  font-size: var(--step-small);        /* small text */
  color: var(--ink-soft);              /* muted */
}
.auth-helpers a {                       /* the links */
  color: var(--rose-deep);             /* rose link */
  text-decoration: none;               /* no underline */
  font-weight: 700;                    /* bold */
  transition: color var(--dur-fast) var(--ease-gentle); /* smooth */
}
.auth-helpers a:hover { color: var(--rose); } /* brighter on hover */

/* =========================================================================
   DASHBOARD
   ========================================================================= */
.dash-shell {                          /* dashboard layout */
  max-width: var(--maxw);              /* site max width */
  margin: 0 auto;                      /* center */
  padding: clamp(5rem, 10vw, 7rem) var(--gut) var(--space-section); /* top clears nav */
  position: relative;                  /* z-index context */
  z-index: 1;                          /* above scene */
}
.dash-head {                           /* greeting + actions row */
  display: flex;                       /* space between title + logout */
  align-items: flex-end;               /* align bottoms */
  justify-content: space-between;      /* push apart */
  gap: 1.5rem;                         /* gap on wrap */
  flex-wrap: wrap;                     /* wrap on small screens */
  margin-bottom: 2.5rem;               /* space before stats */
}
.dash-head h1 {                        /* the greeting heading */
  font-family: var(--font-display);    /* Comfortaa */
  font-size: var(--step-h2);           /* h2 scale */
  font-weight: 700;                    /* bold */
  color: var(--ink);                   /* plum */
  margin: 0 0 0.4rem;                  /* tight below */
  line-height: 1.1;                    /* snug */
}
.dash-head p {                         /* subtitle */
  color: var(--ink-soft);              /* muted */
  margin: 0;                           /* reset */
  font-size: var(--step-body);         /* body */
}
.dash-head .endpoint-mini {            /* the endpoint pill in the header */
  font-family: 'JetBrains Mono', monospace; /* mono */
  font-size: var(--step-mono);         /* small mono */
  background: var(--panel);            /* frosted */
  border: 1px solid var(--panel-border); /* hairline */
  padding: 0.4rem 0.8rem;              /* pill padding */
  border-radius: var(--radius-pill);   /* pill */
  color: var(--ink-soft);              /* muted */
  margin-top: 0.6rem;                  /* gap */
  display: inline-block;               /* pill sizing */
}

/* ---- stat cards row --------------------------------------------------- */
.stats-row {                          /* grid of stat cards */
  display: grid;                       /* css grid */
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr)); /* responsive */
  gap: 1rem;                           /* card gap */
  margin-bottom: 2.5rem;               /* space before next section */
}
.stat-card {                           /* one stat tile */
  background: var(--panel);            /* frosted */
  backdrop-filter: blur(20px);         /* frost */
  -webkit-backdrop-filter: blur(20px); /* safari */
  border: 1px solid var(--panel-border); /* hairline */
  border-radius: var(--radius-card);   /* rounded */
  padding: 1.5rem;                     /* internal padding */
  display: flex;                       /* icon + text column */
  flex-direction: column;              /* stack */
  gap: 0.4rem;                         /* tight stack */
  transition: transform var(--dur) var(--ease-soft), /* hover lift */
              box-shadow var(--dur) var(--ease-soft); /* hover glow */
}
.stat-card:hover {                     /* gentle hover lift */
  transform: translateY(-4px);         /* float up */
  box-shadow: 0 16px 30px -14px rgba(61, 44, 78, 0.25); /* deeper shadow */
}
.stat-card .stat-icon {                /* the little svg icon */
  width: 30px;                         /* icon box */
  height: 30px;                        /* icon box */
  color: var(--rose);                  /* rose icon */
  margin-bottom: 0.3rem;               /* gap to number */
}
.stat-card .stat-num {                 /* the big number */
  font-family: var(--font-display);    /* Comfortaa */
  font-size: clamp(1.8rem, 4vw, 2.6rem); /* big */
  font-weight: 700;                    /* bold */
  color: var(--ink);                   /* plum */
  line-height: 1;                      /* tight */
}
.stat-card .stat-label {               /* the label under the number */
  font-size: var(--step-small);        /* small */
  color: var(--ink-soft);              /* muted */
  font-weight: 600;                    /* semibold */
  letter-spacing: 0.04em;              /* tracked */
  text-transform: uppercase;           /* caps label */
}
.stat-card.is-good .stat-num { color: #5BB89E; }  /* green for healthy */
.stat-card.is-warn .stat-num { color: var(--rose-deep); } /* rose for issues */

/* ---- section headings ------------------------------------------------- */
.dash-section {                        /* a dashboard section */
  margin-top: 2.5rem;                   /* space above each section */
}
.dash-section > h2 {                   /* section heading */
  font-family: var(--font-display);    /* Comfortaa */
  font-size: var(--step-h3);           /* h3 scale */
  font-weight: 700;                    /* bold */
  color: var(--ink);                   /* plum */
  margin: 0 0 1.25rem;                 /* space below */
}

/* ---- model grid ------------------------------------------------------- */
.model-grid {                         /* responsive grid of model chips */
  display: grid;                       /* grid */
  grid-template-columns: repeat(auto-fill, minmax(240px, 1fr)); /* fluid columns */
  gap: 0.75rem;                        /* chip gap */
}
.model-chip {                          /* one model tile */
  background: var(--panel);            /* frosted */
  border: 1px solid var(--panel-border); /* hairline */
  border-radius: 16px;                 /* rounded */
  padding: 0.85rem 1rem;               /* internal */
  display: flex;                       /* name + meta row */
  align-items: center;                 /* center */
  justify-content: space-between;      /* push apart */
  gap: 0.75rem;                        /* gap */
  transition: transform var(--dur-fast) var(--ease-soft), /* hover */
              border-color var(--dur-fast) var(--ease-soft); /* hover */
}
.model-chip:hover {                    /* hover lift */
  transform: translateY(-2px);         /* small float */
  border-color: var(--rose);           /* rose border */
}
.model-chip .mc-name {                 /* the model id */
  font-family: 'JetBrains Mono', monospace; /* mono */
  font-size: var(--step-mono);         /* small mono */
  color: var(--ink);                   /* plum */
  font-weight: 600;                    /* semibold */
  word-break: break-all;               /* wrap long ids */
}
.model-chip .mc-badge {                /* the target count badge */
  flex-shrink: 0;                      /* don't shrink */
  font-size: 0.7rem;                   /* tiny */
  font-weight: 700;                    /* bold */
  padding: 0.25rem 0.55rem;            /* pill padding */
  border-radius: var(--radius-pill);   /* pill */
  background: rgba(255, 143, 171, 0.16); /* rose wash */
  color: var(--rose-deep);             /* rose text */
  white-space: nowrap;                 /* no wrap */
}
.model-chip.is-anthropic .mc-badge {   /* anthropic = cloud badge */
  background: rgba(157, 170, 242, 0.22); /* periwinkle wash */
  color: #6B7AD6;                      /* periwinkle text */
}

/* ---- playground ------------------------------------------------------- */
.playground {                          /* the try-it card */
  background: var(--panel);            /* frosted */
  backdrop-filter: blur(20px);         /* frost */
  -webkit-backdrop-filter: blur(20px); /* safari */
  border: 1px solid var(--panel-border); /* hairline */
  border-radius: var(--radius-card);   /* rounded */
  padding: clamp(1.25rem, 3vw, 2rem);  /* padding */
}
.pg-row {                              /* a playground form row */
  display: grid;                       /* grid */
  grid-template-columns: 1fr;          /* single column default */
  gap: 1rem;                           /* gap */
  margin-bottom: 1rem;                 /* row gap */
}
@media (min-width: 640px) {            /* on wider screens */
  .pg-row.split { grid-template-columns: 1fr 1fr; } /* two columns */
}
.pg-actions {                          /* send + clear row */
  display: flex;                       /* flex */
  gap: 0.75rem;                        /* gap */
  align-items: center;                 /* center */
  flex-wrap: wrap;                     /* wrap */
}
.pg-status {                           /* tiny status text next to buttons */
  font-size: var(--step-small);        /* small */
  color: var(--ink-soft);              /* muted */
  font-weight: 600;                    /* semibold */
}
.pg-status.is-error { color: var(--rose-deep); } /* error color */
.pg-status.is-ok { color: #5BB89E; }   /* ok color */
.pg-output {                           /* the streaming response box */
  margin-top: 1.25rem;                  /* gap above */
  min-height: 140px;                   /* visible area */
  max-height: 420px;                   /* cap height */
  overflow-y: auto;                    /* scroll if long */
  background: rgba(255, 255, 255, 0.5); /* translucent */
  border: 1px dashed var(--panel-border); /* dashed to signal "live" */
  border-radius: 14px;                 /* rounded */
  padding: 1rem;                       /* internal */
  font-family: 'JetBrains Mono', monospace; /* mono output */
  font-size: var(--step-mono);         /* small mono */
  color: var(--ink);                   /* plum */
  line-height: 1.6;                    /* readable */
  white-space: pre-wrap;               /* preserve newlines + wrap */
  word-break: break-word;              /* wrap long tokens */
}
.pg-output:empty::before {             /* placeholder when empty */
  content: 'the response will stream here…'; /* hint */
  color: rgba(107, 90, 126, 0.5);      /* faint */
  font-style: italic;                  /* italic hint */
}
.pg-output .cursor {                   /* blinking caret while streaming */
  display: inline-block;               /* inline */
  width: 8px;                          /* caret width */
  height: 1.1em;                       /* caret height */
  background: var(--rose);             /* rose caret */
  vertical-align: text-bottom;         /* align to text */
  margin-left: 2px;                    /* tiny gap */
  animation: blink 1s steps(2) infinite; /* blink */
}
@keyframes blink { 50% { opacity: 0; } } /* blink off at halfway */

/* ---- loading skeleton ------------------------------------------------- */
.skeleton {                            /* shimmering placeholder */
  background: linear-gradient(90deg,   /* moving shimmer */
    rgba(255, 143, 171, 0.08) 25%,     /* dim */
    rgba(255, 143, 171, 0.18) 37%,     /* bright */
    rgba(255, 143, 171, 0.08) 63%);    /* dim */
  background-size: 400% 100%;          /* wide gradient to animate */
  animation: shimmer 1.4s var(--ease-flow) infinite; /* loop */
  border-radius: 8px;                  /* rounded */
  color: transparent !important;       /* hide text */
  user-select: none;                   /* not selectable */
}
@keyframes shimmer {                   /* sweep the gradient */
  from { background-position: 100% 0; } /* start right */
  to   { background-position: 0 0; }   /* sweep left */
}

/* ---- logout button (ghost) ------------------------------------------- */
.logout-btn {                          /* the logout button */
  background: transparent;             /* no fill */
  border: 1.5px solid var(--panel-border); /* hairline */
  color: var(--ink-soft);              /* muted */
  padding: 0.6rem 1.2rem;              /* pill padding */
  border-radius: var(--radius-pill);   /* pill */
  font-family: var(--font-body);       /* Nunito */
  font-size: var(--step-small);        /* small */
  font-weight: 700;                    /* bold */
  cursor: pointer;                     /* pointer */
  transition: all var(--dur-fast) var(--ease-gentle); /* smooth */
  display: inline-flex;                /* icon + text */
  align-items: center;                 /* center */
  gap: 0.4rem;                         /* gap */
  min-height: 44px;                    /* touch target */
}
.logout-btn:hover {                    /* hover */
  border-color: var(--rose);           /* rose border */
  color: var(--rose-deep);             /* rose text */
  background: rgba(255, 143, 171, 0.08); /* faint wash */
}

/* ---- Google SSO button ----------------------------------------------- */
/* When it's the only sign-in (inside .auth-card--sso) it lives within the card. */
.auth-card--sso .btn-sso {             /* the Google pill, now hero inside the card */
  margin-top: 0.5rem;                   /* small gap below the subtitle */
}
.btn-sso {                             /* the Google SSO pill */
  width: 100%;                         /* full width */
  min-height: 54px;                    /* generous touch target */
  display: inline-flex;                /* icon + text */
  align-items: center;                 /* center */
  justify-content: center;             /* center */
  gap: 0.65rem;                        /* icon/text gap */
  font-family: var(--font-body);       /* Nunito (Google uses a sans-serif) */
  font-size: 1.05rem;                  /* readable */
  font-weight: 700;                    /* medium-bold */
  color: var(--ink);                   /* dark ink text */
  background: #fff;                    /* white (official Google button) */
  border-radius: 14px;                 /* rounded */
  border: 1.5px solid var(--panel-border); /* hairline */
  text-decoration: none;               /* no underline */
  cursor: pointer;                     /* pointer */
  transition: transform var(--dur-fast) var(--ease-spring), /* press physics */
              background var(--dur-fast) var(--ease-gentle), /* color */
              box-shadow var(--dur-fast) var(--ease-gentle); /* glow */
  box-shadow: 0 8px 20px -6px rgba(61, 44, 78, 0.18); /* soft shadow */
}
.btn-sso:hover {                       /* hover */
  background: #faf8fc;                 /* faint warm wash */
  transform: translateY(-2px);         /* lift */
  box-shadow: 0 12px 26px -6px rgba(61, 44, 78, 0.22); /* stronger shadow */
}
.btn-sso:active {                      /* press */
  transform: translateY(0) scale(0.99); /* physical push */
}
.btn-sso:focus-visible {               /* keyboard focus */
  outline: 3px solid var(--rose);      /* rose ring */
  outline-offset: 2px;                 /* gap */
}

/* tiny muted line under the SSO button */
.auth-fine {                           /* the 'by continuing…' fine print */
  text-align: center;                  /* centered */
  font-size: var(--step-small);        /* small */
  color: var(--ink-soft);              /* muted */
  margin: 1rem 0 0;                    /* gap above */
  opacity: 0.85;                       /* slightly dim */
}

/* ---- error toast (Google callback errors) ---------------------------- */
.auth-toast {                          /* error banner above the card */
  width: 100%;                         /* match card */
  max-width: 460px;                    /* same max */
  background: rgba(232, 111, 146, 0.12); /* rose wash */
  border: 1px solid rgba(232, 111, 146, 0.35); /* rose border */
  color: var(--rose-deep);             /* rose text */
  padding: 0.85rem 1rem;               /* internal */
  border-radius: 14px;                 /* rounded */
  font-size: var(--step-small);        /* small */
  font-weight: 600;                    /* semibold */
  margin-bottom: 1rem;                 /* gap */
  display: flex;                       /* icon + text */
  align-items: center;                 /* center */
  gap: 0.5rem;                         /* gap */
  animation: card-rise 0.4s var(--ease-soft) both; /* entrance */
}