/* ─── VARIABLES ─────────────────────────────────── */
:root {
  --primary:    #084f85;
  --primary-d:  #042741;
  --primary-l:  #e8f1f8;
  --secondary:  #91717b;
  --secondary-l:#f5eef0;
  --accent:     #f9b234;
  --red:        #be2c2e;
  --bg:         #f2f5f9;
  --white:      #fff;
  --text:       #2c2c2c;
  --muted:      #6c757d;
  --radius:     14px;
  --r-sm:       8px;
  --shadow:     0 3px 14px rgba(8,79,133,.09);
  --shadow-h:   0 10px 30px rgba(8,79,133,.18);
  --trans:      all .3s cubic-bezier(.25,1,.5,1);
}
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  font-family: 'Quicksand', sans-serif;
  background: var(--bg);
  color: var(--text);
  overflow-x: hidden;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

/* ─── NAVBAR ───────────────────────────────────── */
.navbar-kr {
  background: var(--white);
  box-shadow: 0 2px 14px rgba(0,0,0,.07);
  position: sticky;
  top: 0;
  z-index: 1040;
  padding: .55rem 1rem;
}
.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  max-width: 1200px;
  margin: 0 auto;
  gap: 12px;
}
.brand-logo {
  display: flex; align-items: center; gap: 10px;
  text-decoration: none; flex-shrink: 0;
}
.brand-icon {
  width: 42px; height: 42px;
  background: linear-gradient(135deg, var(--primary), #0b68b0);
  border-radius: 11px;
  display: flex; align-items: center; justify-content: center;
  color: #fff; font-size: 1.3rem;
  box-shadow: 0 3px 12px rgba(8,79,133,.28);
  transition: var(--trans);
}
.brand-icon:hover { transform: rotate(-6deg) scale(1.08); }
.brand-text { font-size: 1.15rem; font-weight: 700; color: var(--primary); line-height: 1; }
.brand-sub  { font-size: .58rem; color: var(--muted); font-weight: 600;
               letter-spacing: .9px; text-transform: uppercase; display: block; }

.nav-link-btn {
  background: transparent; border: 1.5px solid #e0e7ef; border-radius: 10px;
  padding: .38rem .85rem; font-family: 'Quicksand', sans-serif; font-size: .82rem;
  font-weight: 700; color: var(--primary); cursor: pointer; text-decoration: none;
  transition: var(--trans); white-space: nowrap;
  display: flex; align-items: center; gap: 5px;
}
.nav-link-btn:hover { background: var(--primary); color: #fff; border-color: var(--primary); }

/* ─── MAIN WRAPPER ─────────────────────────────── */
.auth-wrapper {
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 2.5rem 1rem 3rem;
}

/* ─── CARD REGISTRO ────────────────────────────── */
.auth-card {
  background: var(--white);
  border-radius: 22px;
  box-shadow: var(--shadow-h);
  width: 100%;
  max-width: 480px;
  overflow: hidden;
  animation: cardIn .45s cubic-bezier(.25,1,.5,1);
}
@keyframes cardIn {
  from { opacity: 0; transform: translateY(22px) scale(.97); }
  to   { opacity: 1; transform: translateY(0) scale(1); }
}

/* Encabezado de la card */
.auth-header {
  background: linear-gradient(135deg, var(--primary) 0%, #0b68b0 100%);
  padding: 2rem 2rem 1.6rem;
  text-align: center;
  position: relative;
  overflow: hidden;
}
.auth-header::before {
  content: '';
  position: absolute; top: -40px; right: -40px;
  width: 130px; height: 130px;
  background: rgba(255,255,255,.07);
  border-radius: 50%;
}
.auth-header::after {
  content: '';
  position: absolute; bottom: -50px; left: -30px;
  width: 110px; height: 110px;
  background: rgba(255,255,255,.05);
  border-radius: 50%;
}
.auth-icon-wrap {
  width: 64px; height: 64px;
  background: rgba(255,255,255,.18);
  border-radius: 18px;
  display: flex; align-items: center; justify-content: center;
  font-size: 1.8rem; color: #fff;
  margin: 0 auto 1rem;
  backdrop-filter: blur(6px);
  box-shadow: 0 4px 16px rgba(0,0,0,.15);
}
.auth-title {
  color: #fff; font-size: 1.45rem; font-weight: 700; margin: 0 0 .3rem;
}
.auth-subtitle {
  color: rgba(255,255,255,.78); font-size: .85rem; font-weight: 500; margin: 0;
}

/* Cuerpo de la card */
.auth-body { padding: 2rem; }

/* ─── BOTÓN GOOGLE ─────────────────────────────── */
.btn-google {
  display: flex; align-items: center; justify-content: center; gap: 10px;
  width: 100%; padding: .7rem 1rem;
  background: var(--white); border: 1.5px solid #dde4eb; border-radius: var(--radius);
  font-family: 'Quicksand', sans-serif; font-size: .92rem; font-weight: 700; color: var(--text);
  cursor: pointer; transition: var(--trans); text-decoration: none;
  box-shadow: 0 2px 8px rgba(0,0,0,.06);
}
.btn-google:hover {
  border-color: var(--primary); background: var(--primary-l);
  color: var(--primary); transform: translateY(-2px);
  box-shadow: 0 5px 18px rgba(8,79,133,.14);
}
.btn-google svg { width: 20px; height: 20px; flex-shrink: 0; }

/* ─── DIVISOR ──────────────────────────────────── */
.divider-or {
  display: flex; align-items: center; gap: 10px;
  margin: 1.4rem 0; color: var(--muted); font-size: .8rem; font-weight: 700;
}
.divider-or::before,
.divider-or::after {
  content: ''; flex: 1; height: 1px; background: #e0e7ef;
}

/* ─── CAMPOS DEL FORMULARIO ────────────────────── */
.form-group { margin-bottom: 1rem; }
.form-label-kr {
  font-size: .82rem; font-weight: 700; color: var(--text);
  margin-bottom: .4rem; display: block; letter-spacing: .2px;
}
.input-wrap { position: relative; }
.input-icon {
  position: absolute; left: 13px; top: 50%; transform: translateY(-50%);
  color: var(--muted); font-size: 1rem; pointer-events: none;
  transition: color .25s;
}
.form-input-kr {
  width: 100%; padding: .62rem 2.7rem .62rem 2.6rem;
  border: 1.5px solid #dde4eb; border-radius: var(--r-sm);
  font-family: 'Quicksand', sans-serif; font-size: .9rem; font-weight: 600;
  background: #f8fafc; color: var(--text);
  outline: none; transition: var(--trans);
}
.form-input-kr:focus {
  border-color: var(--primary); background: #fff;
  box-shadow: 0 0 0 3px rgba(8,79,133,.11);
}
.form-input-kr.is-invalid {
  border-color: var(--red);
  box-shadow: 0 0 0 3px rgba(190,44,46,.1);
}
.form-input-kr.is-valid {
  border-color: #28a745;
  box-shadow: 0 0 0 3px rgba(40,167,69,.1);
}
/* Icono derecho: ojo / check */
.input-suffix {
  position: absolute; right: 11px; top: 50%; transform: translateY(-50%);
  background: none; border: none; cursor: pointer;
  color: var(--muted); font-size: 1rem; transition: color .25s; padding: 0;
}
.input-suffix:hover { color: var(--primary); }

/* Mensaje error/ayuda */
.field-hint {
  font-size: .75rem; font-weight: 600; margin-top: .3rem;
  display: none;
}
.field-hint.visible { display: block; }
.field-hint.error   { color: var(--red); }
.field-hint.success { color: #28a745; }

/* ─── FUERZA CONTRASEÑA ────────────────────────── */
.strength-bar {
  display: flex; gap: 4px; margin-top: .5rem;
}
.strength-seg {
  flex: 1; height: 4px; border-radius: 4px;
  background: #dde4eb; transition: background .35s;
}
.strength-label {
  font-size: .72rem; font-weight: 700; margin-top: .25rem; color: var(--muted);
  transition: color .3s;
}

/* ─── TÉRMINOS ─────────────────────────────────── */
.check-wrap {
  display: flex; align-items: flex-start; gap: 9px; margin-bottom: 1.3rem;
}
.check-kr {
  appearance: none; -webkit-appearance: none;
  width: 18px; height: 18px; min-width: 18px;
  border: 1.5px solid #bcc8d5; border-radius: 5px;
  background: #f8fafc; cursor: pointer; margin-top: 1px;
  transition: var(--trans); position: relative;
}
.check-kr:checked {
  background: var(--primary); border-color: var(--primary);
}
.check-kr:checked::after {
  content: '';
  position: absolute; left: 4px; top: 1px;
  width: 8px; height: 11px;
  border: 2px solid #fff; border-top: none; border-left: none;
  transform: rotate(45deg);
}
.check-label {
  font-size: .8rem; font-weight: 600; color: var(--muted); line-height: 1.45;
}
.check-label a { color: var(--primary); font-weight: 700; text-decoration: none; }
.check-label a:hover { text-decoration: underline; }

/* ─── BOTÓN SUBMIT ─────────────────────────────── */
.btn-submit-kr {
  width: 100%; padding: .78rem 1rem;
  background: linear-gradient(135deg, var(--primary) 0%, #0b68b0 100%);
  border: none; border-radius: var(--r-sm);
  font-family: 'Quicksand', sans-serif; font-size: .98rem; font-weight: 700; color: #fff;
  cursor: pointer; transition: var(--trans);
  display: flex; align-items: center; justify-content: center; gap: 8px;
  box-shadow: 0 4px 16px rgba(8,79,133,.28);
  letter-spacing: .2px;
}
.btn-submit-kr:hover:not(:disabled) {
  background: linear-gradient(135deg, var(--primary-d) 0%, var(--primary) 100%);
  transform: translateY(-2px); box-shadow: 0 8px 24px rgba(8,79,133,.36);
}
.btn-submit-kr:disabled { opacity: .6; cursor: not-allowed; transform: none; }

/* Spinner en botón */
.btn-spinner { display: none; }
.btn-submit-kr.loading .btn-text  { display: none; }
.btn-submit-kr.loading .btn-spinner { display: inline-block; }

/* ─── ENLACE LOGIN ─────────────────────────────── */
.auth-footer-link {
  text-align: center; margin-top: 1.3rem;
  font-size: .84rem; font-weight: 600; color: var(--muted);
}
.auth-footer-link a {
  color: var(--primary); font-weight: 700; text-decoration: none;
}
.auth-footer-link a:hover { text-decoration: underline; }

/* ─── ALERTA GLOBAL ────────────────────────────── */
.alert-kr {
  border-radius: var(--r-sm); padding: .7rem 1rem;
  font-size: .85rem; font-weight: 600; margin-bottom: 1rem;
  display: none; align-items: center; gap: 8px;
  border: 1.5px solid transparent;
}
.alert-kr.show { display: flex; animation: fadeIn .3s ease; }
@keyframes fadeIn { from { opacity: 0; transform: translateY(-5px); } to { opacity: 1; } }
.alert-kr.success { background: #eaf7ed; border-color: #28a745; color: #1a5e2b; }
.alert-kr.error   { background: #fdf0f0; border-color: var(--red);  color: #7a1a1a; }

/* ─── FOOTER ───────────────────────────────────── */
footer.footer-kr {
  background: var(--primary-d);
  color: rgba(255,255,255,.7);
  padding: 1.4rem 1rem;
  text-align: center;
  font-size: .8rem; font-weight: 600;
}
footer.footer-kr a { color: var(--primary-l); text-decoration: none; }
footer.footer-kr a:hover { color: #fff; }

/* ─── RESPONSIVE ───────────────────────────────── */
@media (max-width: 480px) {
  .auth-body { padding: 1.5rem 1.2rem; }
  .auth-header { padding: 1.6rem 1.2rem 1.3rem; }
}