/* =========================================================
   THEME & RESET
   ========================================================= */
:root {
  --primary: #2563eb;
  --primary-soft: #e0edff;
  --bg-page: #f4f6fb;
  --card-bg: #ffffff;
  --card-border: rgba(15, 23, 42, 0.06);
  --card-shadow: 0 18px 40px rgba(15,23,42,0.16);
  --text-main: #0f172a;
  --text-muted: #6b7280;
  --radius-card: 18px;
  --radius-input: 12px;
  --transition-main: 0.25s cubic-bezier(.2,.9,.3,1);
  --input-surface: #f9fafb;
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html, body {
  margin: 0;
  padding: 0;
  min-height: 100vh;
  font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  background: var(--bg-page);
  color: var(--text-main);
}

/* =========================================================
   BACKGROUND PARTICLES HOST
   ========================================================= */
#bg-anim {
  position: fixed;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  background:
    radial-gradient(900px 600px at 10% 10%, rgba(37,99,235,0.09), transparent 60%),
    radial-gradient(900px 600px at 90% 90%, rgba(250,204,21,0.09), transparent 60%);
}

/* =========================================================
   LAYOUT - CENTER EVERYTHING
   ========================================================= */
.auth-shell {
  position: relative;
  z-index: 1;
  min-height: 100vh;
  display: grid;
  place-items: center;
  padding: 24px 16px;
}

.auth-card {
  position: relative;
  width: 100%;
  max-width: 460px;
  background: var(--card-bg);
  border-radius: var(--radius-card);
  border: 1px solid var(--card-border);
  box-shadow: var(--card-shadow);
  padding: 26px 24px 24px;
  display: flex;
  align-items: center;
  justify-content: center;
  /* NEW: snappy zoom+fade entrance */
  opacity: 0;
  transform: translateY(18px) scale(0.94);
  animation: cardIn 0.58s cubic-bezier(.2,.9,.3,1) forwards;
}

@keyframes cardIn {
  0% {
    opacity: 0;
    transform: translateY(18px) scale(0.94);
  }
  70% {
    opacity: 1;
    transform: translateY(-2px) scale(1.02);
  }
  100% {
    opacity: 1;
    transform: translateY(0) scale(1);
  }
}

.glass-panel {
  backdrop-filter: blur(10px);
}

/* inner vertical stack, centered */
.auth-main {
  width: 100%;
  max-width: 360px;
  margin: 0 auto;
  text-align: center;
  display: flex;
  flex-direction: column;
  align-items: center;
}

/* =========================================================
   SHARED FADE-UP ANIMATION FOR INNER ELEMENTS
   ========================================================= */
@keyframes fadeUpIn {
  from {
    opacity: 0;
    transform: translateY(12px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* baseline: start hidden & slightly down */
.auth-logo,
.auth-header,
.auth-form .field,
.auth-submit,
.auth-footer {
  opacity: 0;
  transform: translateY(12px);
}

/* staggered entrance: smoother + slower */
.auth-logo {
  animation: fadeUpIn 0.38s ease-out 0.32s forwards;
}

.auth-header {
  animation: fadeUpIn 0.38s ease-out 0.44s forwards;
}

.auth-form .field:nth-of-type(1) {
  animation: fadeUpIn 0.38s ease-out 0.56s forwards;
}

.auth-form .field:nth-of-type(2) {
  animation: fadeUpIn 0.38s ease-out 0.70s forwards;
}

.auth-submit {
  animation: fadeUpIn 0.38s ease-out 0.86s forwards;
}

.auth-footer {
  animation: fadeUpIn 0.38s ease-out 1.02s forwards;
}

/* =========================================================
   BACK-TO-HUB BUTTON (inside card, top-left)
   ========================================================= */
.btn-back {
  position: absolute;
  top: 12px;
  left: 12px;
  padding: 5px 10px;
  border-radius: 999px;
  border: 1px solid rgba(148,163,184,0.55);
  background: rgba(255,255,255,0.9);
  color: #1f2933;
  font-size: 0.86rem;
  font-weight: 600;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  text-decoration: none;
  transition: transform var(--transition-main),
              box-shadow var(--transition-main),
              background-color var(--transition-main);
  /* entrance synced with content */
  opacity: 0;
  transform: translateY(-6px) translateX(-4px);
  animation: fadeUpIn 0.34s ease-out 0.30s forwards;
}

.btn-back .chev {
  font-size: 1rem;
  line-height: 1;
}

.btn-back:hover,
.btn-back:focus-visible {
  background: #ffffff;
  transform: translateY(-2px);
}


/* =========================================================
   LOGO / TITLE (centered)
   ========================================================= */
.auth-logo {
  margin-top: 6px;
  margin-bottom: 6px;
}

.auth-logo__badge {
  width: 64px;
  height: 64px;
  border-radius: 20px;
  display: grid;
  place-items: center;
  margin-inline: auto;
  box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
  animation: logoPop 0.5s cubic-bezier(.2,.9,.3,1);
}

@keyframes logoPop {
  0%   { opacity: 0; transform: translateY(-8px) scale(.9); }
  60%  { opacity: 1; transform: translateY(2px) scale(1.05); }
  100% { opacity: 1; transform: translateY(0) scale(1); }
}

.auth-logo__img {
  width: 36px;
  height: 36px;
}

.auth-header {
  margin-top: 12px;
  margin-bottom: 18px;
}

.app-title {
  font-size: 1.5rem;
  font-weight: 800;
  margin: 0;
  color: var(--text-main);
}

.app-subtitle {
  margin: 4px 0 0;
  font-size: 0.95rem;
  color: var(--text-muted);
}

/* =========================================================
   FORM - centered, simple
   ========================================================= */
.auth-form {
  width: 100%;
  margin-top: 8px;
}

.field {
  position: relative;
  width: 100%;
  margin-top: 1.2rem;
  margin-bottom: 0.25rem;
}

/* input surface */
.field-input {
  width: 100%;
  height: 50px;
  border-radius: var(--radius-input);
  border: 1px solid rgba(148,163,184,0.7);
  background: var(--input-surface);
  padding: 0 14px;
  font-size: 0.96rem;
  color: var(--text-main);
  transition: border-color var(--transition-main),
              box-shadow var(--transition-main),
              background-color var(--transition-main);
}

.field-input.has-toggle {
  padding-right: 46px;
}

.field-input:focus-visible {
  outline: none;
  border-color: var(--primary);
  box-shadow: 0 0 0 2px rgba(37,99,235,0.25);
  background: #ffffff;
}

/* floating label */
.field-label {
  position: absolute;
  left: 14px;
  top: 50%;
  transform: translateY(-50%);
  font-size: 0.9rem;
  color: #9ca3af;
  pointer-events: none;
  transition: 0.18s ease;
  background: transparent;
}

/* focus or filled */
.field-input:focus + .field-label,
.field-input:not(:placeholder-shown) + .field-label {
  top: -8px;
  left: 10px;
  font-size: 0.78rem;
  color: var(--primary);
}

/* Chrome autofill */
input:-webkit-autofill,
input:-webkit-autofill:focus,
input:-webkit-autofill:hover {
  -webkit-box-shadow: 0 0 0 1000px var(--input-surface) inset !important;
  box-shadow: 0 0 0 1000px var(--input-surface) inset !important;
  -webkit-text-fill-color: var(--text-main) !important;
}

/* password toggle button */
.btn-toggle-password {
  position: absolute;
  top: 50%;
  right: 6px;
  transform: translateY(-50%);
  border-radius: 999px;
  border: none;
  padding: 4px 8px;
  background: transparent;
  font-size: 0.9rem;
  cursor: pointer;
  color: #6b7280;
  transition: background-color 0.18s ease, color 0.18s ease;
}

.btn-toggle-password:hover {
  background: rgba(148,163,184,0.15);
  color: #111827;
}

/* submit button – soft blue pill, same vibe as green/red buttons */
.auth-submit {
  display: block;
  width: 100%;
  margin-top: 18px;
  border-radius: 999px;
  padding: 0.7rem 1.1rem;
  font-size: 0.98rem;
  font-weight: 600;
  border: 1px solid #2563eb;                 /* blue border */
  background: #2563eb;       /* soft blue tint */
  color: #ffffff;                          /* darker blue text */
  box-shadow: none;
  transition:
    background var(--transition-main),
    color var(--transition-main),
    border-color var(--transition-main),
    transform var(--transition-main),
    opacity 0.18s ease;

  /* keep the entrance animation you already had */
  opacity: 0;
  transform: translateY(12px);
}

.auth-submit:hover,
.auth-submit:focus-visible {
  background: rgba(239, 246, 255, 0.95);                     /* solid blue */
  color: #1d4ed8;
  border-color: #2563eb;
  transform: translateY(-1px);
  outline: none;
}

/* footer text */
.auth-footer {
  margin-top: 14px;
  font-size: 0.8rem;
  color: var(--text-muted);
}

/* =========================================================
   TOAST MESSAGES
   ========================================================= */
#messages {
  position: fixed;
  z-index: 20;
  top: 10%;
  left: 50%;
  transform: translateX(-50%);
  width: min(92vw, 420px);
  text-align: center;
  pointer-events: none;
}

#messages .msg {
  display: inline-block;
  margin-bottom: 10px;
  padding: 0.6rem 0.9rem;
  border-radius: 999px;
  background: #ffffff;
  border: 1px solid rgba(148,163,184,0.5);
  box-shadow: 0 10px 28px rgba(15,23,42,0.26);
  color: var(--text-main);
  font-size: 0.88rem;
  font-weight: 600;
  opacity: 0;
  transform: translateY(-8px);
}

/* variants */
#messages .msg[data-tags*="success"] {
  border-color: rgba(22,163,74,0.6);
  background: #ecfdf3;
  color: #166534;
}
#messages .msg[data-tags*="error"],
#messages .msg[data-tags*="danger"] {
  border-color: rgba(220,38,38,0.6);
  background: #fef2f2;
  color: #b91c1c;
}
#messages .msg[data-tags*="info"] {
  border-color: rgba(59,130,246,0.6);
  background: #eff6ff;
  color: #1d4ed8;
}

@keyframes toastInOut {
  0%   { opacity: 0; transform: translateY(-10px); }
  10%  { opacity: 1; transform: translateY(0); }
  80%  { opacity: 1; transform: translateY(0); }
  100% { opacity: 0; transform: translateY(-6px); }
}

#messages .msg.toast-auto-hide {
  animation: toastInOut 4.2s cubic-bezier(.2,.9,.3,1) forwards;
}

/* =========================================================
   RESPONSIVE
   ========================================================= */
@media (max-width: 480px) {
  .auth-card {
    padding: 22px 18px 18px;
  }
  .auth-main {
    max-width: 100%;
  }
}