/* Login page — Duolingo-style auth card.
   Centered single card with email/password form, Google + Apple + Facebook
   social buttons, sign-up link, and fine print. */

body.login-v2 {
  background: #fff;
  min-height: 100vh;
  min-height: 100svh;
  margin: 0;
  display: flex;
  flex-direction: column;
  font-family: var(--font-body);
  color: var(--ink);
}

/* ---------- Header (logo top-left + sign-up CTA top-right) ---------- */
.login-header {
  position: sticky;
  top: 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 22px 32px;
  background: #fff;
  border-bottom: 2px solid var(--line);
  z-index: 10;
}
.login-brand { display: inline-flex; align-items: center; gap: 11px; text-decoration: none; }
.login-brand-icon { width: 40px; height: 40px; object-fit: contain; }
.login-brand-word {
  font-family: "Outfit", var(--font-display);
  font-weight: 800;
  font-size: 29px;
  letter-spacing: -0.04em;
  color: var(--ink);
}
.login-header-cta {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 13px;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--purple);
  padding: 10px 18px;
  border: 2px solid var(--purple-ring);
  border-radius: 999px;
  box-shadow: 0 2px 0 var(--purple-ring);
  transition: background .12s, border-color .12s, box-shadow .12s, transform .08s;
  text-decoration: none;
}
.login-header-cta:hover { background: var(--purple-soft); border-color: var(--purple); }
.login-header-cta:active { transform: translateY(1px); box-shadow: 0 1px 0 var(--purple-ring); }

/* ---------- Main centered card ---------- */
.login-main {
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 48px 24px 96px;
}
.login-card {
  width: 100%;
  max-width: 440px;
  display: flex;
  flex-direction: column;
  align-items: stretch;
  gap: 20px;
}
.login-h1 {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(28px, 4vw, 36px);
  line-height: 1.1;
  letter-spacing: -0.035em;
  color: var(--ink);
  margin: 0;
  text-align: center;
}
.login-sub {
  font-size: 16px;
  color: var(--mute);
  line-height: 1.5;
  margin: 0 0 8px;
  font-weight: 500;
  text-align: center;
}

/* ---------- Email / Password form ---------- */
.login-form {
  display: flex;
  flex-direction: column;
  gap: 14px;
}
.login-field {
  display: flex;
  flex-direction: column;
  gap: 6px;
}
.login-field-label {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 12px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--mute);
}
.login-field input {
  font-family: var(--font-body);
  font-size: 16px;
  font-weight: 500;
  color: var(--ink);
  background: #fff;
  border: 2px solid var(--line);
  border-radius: var(--r-md);
  padding: 14px 16px;
  outline: none;
  transition: border-color .12s, box-shadow .12s;
  width: 100%;
}
.login-field input:focus {
  border-color: var(--purple);
  box-shadow: 0 0 0 3px var(--purple-soft);
}
.login-field input::placeholder { color: var(--mute-2); font-weight: 500; }

.login-pw-wrap { position: relative; }
.login-pw-wrap input { padding-right: 48px; }
.login-pw-toggle {
  position: absolute;
  right: 8px;
  top: 50%;
  transform: translateY(-50%);
  width: 36px;
  height: 36px;
  border-radius: 999px;
  display: grid;
  place-items: center;
  color: var(--mute);
  background: transparent;
  cursor: pointer;
}
.login-pw-toggle:hover { color: var(--ink); background: var(--line-2); }

.login-row-between {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  flex-wrap: wrap;
  margin-top: -4px;
}
.login-remember {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  color: var(--mute);
  font-weight: 600;
  cursor: pointer;
}
.login-remember input[type="checkbox"] {
  width: 18px;
  height: 18px;
  accent-color: var(--purple);
  cursor: pointer;
}
.login-forgot {
  font-size: 13px;
  color: var(--purple);
  font-weight: 700;
  text-decoration: none;
}
.login-forgot:hover { text-decoration: underline; }

.login-submit {
  margin-top: 4px;
  background: var(--purple);
  color: #fff;
  border: 2px solid var(--purple);
  border-radius: 999px;
  padding: 16px 28px;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 16px;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  cursor: pointer;
  box-shadow: 0 4px 0 var(--purple-deep);
  transition: background .12s, transform .08s, box-shadow .12s;
}
.login-submit:hover { background: #7d4ff0; }
.login-submit:active { transform: translateY(2px); box-shadow: 0 2px 0 var(--purple-deep); }

/* ---------- OR divider ---------- */
.login-divider {
  display: flex;
  align-items: center;
  gap: 12px;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 12px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--mute-2);
  margin: 4px 0;
}
.login-divider::before,
.login-divider::after {
  content: "";
  flex: 1;
  height: 2px;
  background: var(--line);
  border-radius: 1px;
}

/* ---------- Social auth buttons ----------
   Identical shape across all three providers, logo pinned far-left,
   text centred. Matches the end-of-onboarding (step 5) design exactly. */
.login-social {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

/* Stack the custom Google button with the GSI iframe overlaid invisibly on
   top. Click hits the iframe → Google's real auth popup fires. */
.login-google-stack {
  position: relative;
  width: 100%;
}
.login-google-overlay {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  opacity: 0;
  z-index: 2;
  cursor: pointer;
  overflow: hidden;
}
.login-google-overlay > div,
.login-google-overlay iframe {
  width: 100% !important;
  height: 100% !important;
}
.login-google-stack .login-social-btn {
  position: relative;
  z-index: 1;
  pointer-events: none;   /* let clicks pass through to the iframe */
}

.login-social-btn {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 100%;
  padding: 14px 20px;
  border-radius: 999px;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 15px;
  letter-spacing: 0.01em;
  cursor: pointer;
  border: 2px solid transparent;
  transition: background .12s, border-color .12s, box-shadow .12s, transform .08s;
  box-sizing: border-box;
  min-height: 52px;
}
.login-social-btn:active { transform: translateY(1px); }
.login-social-btn svg {
  position: absolute;
  left: 20px;
  top: 50%;
  transform: translateY(-50%);
}

/* Google — white pill with multi-colour G logo */
.login-social-google {
  background: #fff;
  color: var(--ink);
  border-color: var(--line);
  box-shadow: 0 4px 0 var(--line);
}
.login-social-google:hover { background: var(--line-2); }
.login-social-google:active { box-shadow: 0 2px 0 var(--line); }

/* Apple — solid black */
.login-social-apple {
  background: #0a0a0a;
  color: #fff;
  border-color: #0a0a0a;
  box-shadow: 0 4px 0 #000;
}
.login-social-apple:hover { background: #1a1a1a; }
.login-social-apple:active { box-shadow: 0 2px 0 #000; }
.login-social-apple svg { color: #fff; }

/* Facebook — solid blue */
.login-social-facebook {
  background: #1877F2;
  color: #fff;
  border-color: #1877F2;
  box-shadow: 0 4px 0 #0d5cba;
}
.login-social-facebook:hover { background: #2685ff; }
.login-social-facebook:active { box-shadow: 0 2px 0 #0d5cba; }
.login-social-facebook svg { color: #fff; }

/* ---------- Error + helpers ---------- */
.login-error {
  margin: 8px 0 0;
  padding: 10px 14px;
  border-radius: var(--r-md);
  background: #FEF2F2;
  border: 2px solid #FCA5A5;
  color: #B91C1C;
  font-size: 14px;
  font-weight: 600;
}
.login-signup-link {
  margin: 12px 0 0;
  text-align: center;
  font-size: 14px;
  color: var(--mute);
  font-weight: 500;
}
.login-signup-link a {
  color: var(--purple);
  font-weight: 700;
  text-decoration: none;
}
.login-signup-link a:hover { text-decoration: underline; }
.login-fine {
  margin: 4px 0 0;
  text-align: center;
  font-size: 12px;
  color: var(--mute-2);
  font-weight: 500;
}

/* ---------- Mobile ---------- */
@media (max-width: 600px) {
  .login-header { padding: 14px 16px; }
  .login-brand-word { font-size: 22px; }
  .login-header-cta { padding: 8px 14px; font-size: 12px; }
  .login-main { padding: 24px 16px 64px; }
}

/* ---------- Phone (≤480px) ---------- */
@media (max-width: 480px) {
  .login-header {
    padding: 10px 14px;
  }
  .login-brand-icon { width: 30px; height: 30px; }
  .login-brand-word { font-size: 20px; }
  .login-header-cta {
    padding: 8px 12px;
    font-size: 11px;
    box-shadow: 0 2px 0 var(--purple-ring);
  }
  .login-main { padding: 20px 14px 56px; }
  .login-card { gap: 14px; }
  .login-h1 { font-size: 24px; }
  .login-sub { font-size: 14px; margin-bottom: 4px; }
  .login-field-label { font-size: 11px; }
  /* Keep input font-size at 16px to prevent iOS Safari zoom on focus. */
  .login-field input {
    padding: 12px 14px;
    font-size: 16px;
    border-radius: var(--r-md);
  }
  .login-pw-wrap input { padding-right: 44px; }
  .login-pw-toggle {
    width: 32px;
    height: 32px;
    right: 6px;
  }
  .login-remember { font-size: 12px; }
  .login-forgot { font-size: 12px; }
  .login-submit {
    padding: 14px 22px;
    font-size: 14px;
    letter-spacing: 0.04em;
    box-shadow: 0 3px 0 var(--purple-deep);
  }
  .login-divider { font-size: 11px; margin: 2px 0; }
  .login-social { gap: 8px; }
  .login-social-btn {
    padding: 12px 16px;
    font-size: 14px;
    box-shadow: 0 3px 0 rgba(0,0,0,0.18);
  }
  .login-social-apple { box-shadow: 0 3px 0 #000; }
  .login-social-facebook { box-shadow: 0 3px 0 #0d5cba; }
  /* Google's embedded iframe — constrain so it can't overflow. */
  .login-google-wrap { width: 100%; }
  .login-google-wrap .g_id_signin,
  .login-google-wrap iframe {
    max-width: 100% !important;
    width: 100% !important;
  }
  .login-signup-link { font-size: 13px; }
  .login-fine { font-size: 11px; }
  .login-error { font-size: 13px; padding: 10px 12px; }
}