/* ══════════════════════════════════════════════════════════════
   RESET & BASE — RowFlu auth (login + registro), lenguaje Apple.
   IMPORTANTE: los nombres de clase son contrato con js/auth.js y
   js/register.js. Este rediseño cambia SOLO valores visuales; no se
   renombra, elimina ni añade ningún selector del que dependa el JS.
   ══════════════════════════════════════════════════════════════ */
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{font-size:16px}
body{font-family:var(--font-sans);background:var(--paper);color:var(--ink);
  -webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;text-rendering:optimizeLegibility;
  min-height:100vh;display:flex;align-items:center;justify-content:center;padding:28px}
img,svg{display:block;max-width:100%}
/* `display:block` de arriba ganaba al atributo [hidden] y hacía que los dos
   iconos del ojo (abierto y cerrado) se vieran a la vez en el campo de
   contraseña. El atributo debe seguir ocultando. */
[hidden]{display:none !important}
a{color:inherit}
button{font:inherit}
::selection{background:rgba(125,211,252,.35);color:var(--ink)}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation-duration:.001ms !important;animation-iteration-count:1 !important;transition-duration:.001ms !important}
}

/* ══════════════════════════════════════════════════════════════
   TOKENS — alineados con la app (src/app/css/style.css) y /beta/
   ══════════════════════════════════════════════════════════════ */
:root{
  --font-sans: -apple-system, BlinkMacSystemFont, 'SF Pro Text', 'SF Pro Display',
               'Inter', 'Segoe UI', Roboto, system-ui, sans-serif;
  --font-brand: 'Bricolage Grotesque', var(--font-sans);

  --bg:        #0B0B0C;
  --bg-2:      #141416;
  --white:     #FFFFFF;
  --paper:     #F5F5F7;
  --paper-2:   #FBFBFD;
  --ink:       #111111;
  --ink-soft:  #6E6E73;
  --ink-tenue: #8E8E93;

  --line-dark:  rgba(255,255,255,.09);
  --line-light: #E5E5EA;
  --line-hairline: rgba(0,0,0,.06);
  --glass:     rgba(255,255,255,.05);
  --glass-brd: rgba(255,255,255,.09);

  --lime:      #C7FF6B;
  --lime-rgb:  199,255,107;
  --lime-deep: #4D7C0F;        /* variante legible sobre fondo claro */
  --lime-dim:  rgba(199,255,107,.16);
  --coral:     #E5484D;
  --amber:     #F0B94D;

  /* Acento interactivo: azul frío (foco, enlaces) — legible en claro */
  --accent:      #7DD3FC;
  --accent-text: #2F5FD1;
  --violet:      #A78BFA;
  --cyan:        #67E8F9;

  --grad-cool: linear-gradient(135deg,#7DD3FC 0%,#A78BFA 100%);
  --halo-cool: radial-gradient(circle at 50% 42%, rgba(125,211,252,.30) 0%, rgba(167,139,250,.16) 38%, transparent 70%);

  --shadow-md: 0 10px 28px -10px rgba(0,0,0,.5);
  --shadow-lg: 0 40px 90px -28px rgba(0,0,0,.28);

  --r-sm: 8px; --r-md: 12px; --r-lg: 20px; --r-xl: 28px; --r-full: 999px;
  --ease: cubic-bezier(.22,.61,.36,1);
  --dur-fast: 140ms; --dur-base: 180ms; --dur-slow: 220ms;
}
.mono{font-family:ui-monospace,'SF Mono',Menlo,monospace}

/* ══════════════════════════════════════════════════════════════
   WORDMARK — única pieza con tipografía de marca
   ══════════════════════════════════════════════════════════════ */
.wordmark{display:inline-flex;align-items:flex-end;font-family:var(--font-brand);font-weight:800;letter-spacing:-.02em;text-transform:uppercase;font-size:1.24rem;line-height:1}
.wordmark .wm-accent{width:.2em;height:.62em;background:var(--lime);transform:skewX(-18deg);margin:0 .08em .02em .02em;border-radius:1px;flex-shrink:0}
.wordmark-dark .wm-row{color:#fff}
.wordmark-dark .wm-flu{color:rgba(255,255,255,.42)}
.wordmark-light .wm-row{color:var(--ink)}
.wordmark-light .wm-flu{color:var(--ink-soft)}

/* ══════════════════════════════════════════════════════════════
   SHELL — tarjeta dividida, radio amplio, sombra difusa
   ══════════════════════════════════════════════════════════════ */
.login-shell{
  width:min(1180px,100%);
  height:min(780px,92vh);
  display:grid;
  grid-template-columns:55fr 45fr;
  background:var(--white);
  border-radius:var(--r-xl);
  overflow:hidden;
  box-shadow:var(--shadow-lg), 0 0 0 1px var(--line-hairline);
}

/* ══════════════════════════════════════════════════════════════
   PANEL IZQUIERDO — visual AI sobre negro profundo
   ══════════════════════════════════════════════════════════════ */
.login-visual{
  position:relative;
  background:var(--bg);
  overflow:hidden;
  display:flex;
  flex-direction:column;
  justify-content:space-between;
  padding:2.6rem 2.8rem 3rem;
}
/* Halo de aurora (frío) en vez del halo lima anterior */
.lv-halo{position:absolute;inset:0;margin:auto;width:min(700px,94%);aspect-ratio:1/1;border-radius:50%;
  background:var(--halo-cool);
  filter:blur(26px);animation:lv-pulse 7s ease-in-out infinite;pointer-events:none}
@keyframes lv-pulse{0%,100%{transform:scale(1);opacity:.72}50%{transform:scale(1.05);opacity:1}}
.ai-canvas{position:absolute;inset:0;margin:auto;width:min(560px,86%);height:min(560px,58%);top:-4%;display:block;
  animation:lv-float 10s ease-in-out infinite;
  -webkit-mask-image:radial-gradient(circle at 50% 48%,black 46%,transparent 76%);
  mask-image:radial-gradient(circle at 50% 48%,black 46%,transparent 76%)}
@keyframes lv-float{0%,100%{transform:translateY(0)}50%{transform:translateY(-10px)}}

.lv-top{position:relative;z-index:3;display:flex;align-items:center;justify-content:space-between;gap:1rem}
.lv-nav{display:flex;align-items:center;gap:1.4rem}
.lv-nav a{font-size:.85rem;font-weight:500;color:rgba(255,255,255,.6);text-decoration:none;transition:color var(--dur-base) var(--ease)}
.lv-nav a:hover{color:#fff}

.lv-tags{position:absolute;inset:0;z-index:2;pointer-events:none}
.lv-tag{position:absolute;display:inline-flex;align-items:center;gap:.5rem;font-size:.72rem;font-weight:500;color:rgba(255,255,255,.72);
  padding:.4rem .8rem;border-radius:var(--r-full);background:var(--glass);border:1px solid var(--glass-brd);backdrop-filter:blur(10px);
  white-space:nowrap;animation:lv-tag-float 7s ease-in-out infinite}
.lv-tag i{width:6px;height:6px;border-radius:50%;background:var(--cyan);flex-shrink:0}
/* Posiciones dentro del panel, sin invadir la fila del wordmark (arriba)
   ni el bloque de copy (abajo), y sin salirse por la izquierda. */
.lv-tag-1{top:22%;left:6%}
.lv-tag-2{top:16%;right:6%}
.lv-tag-3{top:46%;left:3%;animation-delay:.7s}
.lv-tag-4{top:38%;right:9%;animation-delay:1.4s}
.lv-tag-4 i{background:var(--lime)}
@keyframes lv-tag-float{0%,100%{transform:translateY(0)}50%{transform:translateY(-8px)}}

.lv-copy{position:relative;z-index:3;max-width:440px}
.lv-copy h1{font-size:clamp(1.8rem,2.8vw,2.5rem);font-weight:660;line-height:1.08;letter-spacing:-.032em;color:#fff;text-wrap:balance}
/* Palabra destacada con degradado en vez de lima plano */
.lv-copy h1 span{
  background:var(--grad-cool);
  -webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent;
  color:var(--cyan);
}
.lv-copy p{margin-top:.9rem;font-size:.96rem;line-height:1.6;color:rgba(255,255,255,.58);max-width:380px;text-wrap:pretty}

/* ══════════════════════════════════════════════════════════════
   PANEL DERECHO — formulario
   ══════════════════════════════════════════════════════════════ */
.login-form-panel{
  position:relative;
  background:var(--white);
  display:flex;
  flex-direction:column;
  padding:2.4rem 3.4rem 2rem;
  overflow-y:auto;
}
.lf-brand{align-self:flex-start;text-decoration:none;margin-bottom:1.2rem}
.lf-content{flex:1;display:flex;flex-direction:column;justify-content:center;max-width:390px;margin:0 auto;width:100%}
.lf-content-wide{max-width:450px}
.lf-head{margin-bottom:1.9rem}
.lf-head h2{font-size:1.95rem;font-weight:670;letter-spacing:-.032em;color:var(--ink);line-height:1.1}
.lf-head p{margin-top:.45rem;font-size:.94rem;color:var(--ink-soft);letter-spacing:-.01em}

form{display:flex;flex-direction:column;gap:1.05rem}
.field{display:flex;flex-direction:column;gap:.42rem}
.field label{font-size:.82rem;font-weight:590;color:var(--ink);letter-spacing:-.006em}
.field input{
  font-family:var(--font-sans);font-size:.93rem;color:var(--ink);
  padding:.82rem 1rem;border-radius:var(--r-md);border:1px solid var(--line-light);background:var(--white);
  transition:border-color var(--dur-fast) var(--ease),box-shadow var(--dur-fast) var(--ease),background-color var(--dur-fast) var(--ease);
  width:100%;
}
.field input::placeholder{color:var(--ink-tenue)}
.field input:hover{border-color:#D2D2D7}
.field input:focus-visible{outline:none;border-color:var(--accent);box-shadow:0 0 0 4px rgba(125,211,252,.28)}
.field input:invalid:not(:placeholder-shown):not(:focus){border-color:var(--coral)}
.field input:disabled{background:var(--paper);color:var(--ink-tenue);cursor:not-allowed}

/* Grid Nombre / Apellido */
.field-grid-2{display:grid;grid-template-columns:1fr 1fr;gap:1rem}
@media(max-width:520px){.field-grid-2{grid-template-columns:1fr;gap:1.05rem}}

/* Error inline por campo (registro) */
.field-error{display:block;font-size:.76rem;color:var(--coral);margin-top:.35rem;line-height:1.4}
.field-error:empty{display:none;margin:0}
.field.has-error input{border-color:var(--coral)}
.field.has-error input:focus-visible{border-color:var(--coral);box-shadow:0 0 0 4px rgba(229,72,77,.16)}

/* Medidor de fortaleza de contraseña */
.pw-strength{display:flex;align-items:center;gap:.65rem;margin-top:.55rem}
.pw-strength-bar{display:flex;gap:4px;flex:1}
.pw-strength-bar i{display:block;height:4px;flex:1;border-radius:2px;background:var(--line-light);transition:background var(--dur-base) var(--ease)}
.pw-strength-label{font-size:.72rem;font-weight:600;color:var(--ink-soft);min-width:42px;text-align:right}
.pw-strength.level-1 .pw-strength-bar i:nth-child(1){background:var(--coral)}
.pw-strength.level-1 .pw-strength-label{color:var(--coral)}
.pw-strength.level-2 .pw-strength-bar i:nth-child(1),
.pw-strength.level-2 .pw-strength-bar i:nth-child(2){background:var(--amber)}
.pw-strength.level-2 .pw-strength-label{color:#8A6D1B}
.pw-strength.level-3 .pw-strength-bar i{background:var(--lime-deep)}
.pw-strength.level-3 .pw-strength-label{color:var(--lime-deep)}

/* Checkbox de Términos y privacidad */
.terms-check{display:flex;align-items:flex-start;gap:.6rem;font-size:.82rem;color:var(--ink-soft);cursor:pointer;line-height:1.5;margin:.2rem 0 .1rem}
.terms-check input{accent-color:var(--accent-text);width:16px;height:16px;margin-top:.16rem;flex-shrink:0;cursor:pointer}
.terms-check a{color:var(--ink);font-weight:590;text-decoration:underline}
#terms-error{margin-top:-.15rem;margin-bottom:.2rem}

.input-wrap{position:relative;display:flex}
.input-wrap input{padding-right:2.8rem}
.pw-toggle{position:absolute;right:.6rem;top:50%;transform:translateY(-50%);width:32px;height:32px;border:none;background:none;
  color:var(--ink-soft);border-radius:var(--r-sm);display:flex;align-items:center;justify-content:center;cursor:pointer;
  transition:color var(--dur-fast) var(--ease),background var(--dur-fast) var(--ease)}
.pw-toggle:hover{color:var(--ink);background:var(--paper)}
.pw-toggle:focus-visible{outline:none;box-shadow:0 0 0 3px rgba(125,211,252,.45)}
.eye-icon{width:18px;height:18px}

.field-row{display:flex;align-items:center;justify-content:space-between;gap:1rem;font-size:.84rem}
.remember{display:flex;align-items:center;gap:.5rem;color:var(--ink-soft);cursor:pointer;user-select:none}
.remember input{accent-color:var(--accent-text);width:15px;height:15px;cursor:pointer}
.forgot-link{color:var(--accent-text);text-decoration:none;font-weight:560}
.forgot-link:hover{text-decoration:underline}

/* ── Botón primario: negro sólido, sin sombra de color ── */
.btn-login{
  position:relative;margin-top:.4rem;padding:.92rem 1.5rem;border-radius:var(--r-full);border:none;cursor:pointer;
  background:var(--ink);color:#fff;font-family:var(--font-sans);font-weight:590;font-size:.96rem;letter-spacing:-.01em;
  display:flex;align-items:center;justify-content:center;gap:.6rem;
  box-shadow:0 1px 2px rgba(0,0,0,.18);
  transition:transform var(--dur-fast) var(--ease),box-shadow var(--dur-fast) var(--ease),background var(--dur-fast) var(--ease);
}
.btn-login:hover:not(:disabled){background:#26262A;box-shadow:0 8px 22px -8px rgba(0,0,0,.42)}
.btn-login:active:not(:disabled){transform:scale(.978)}
.btn-login:focus-visible{outline:none;box-shadow:0 0 0 4px rgba(125,211,252,.45)}
.btn-login:disabled{opacity:.6;cursor:not-allowed}
.btn-spinner{display:none;width:16px;height:16px;border-radius:50%;border:2px solid rgba(255,255,255,.35);border-top-color:#fff;animation:spin .7s linear infinite}
.btn-login.is-loading .btn-spinner{display:block}
.btn-login.is-loading .btn-label{opacity:.85}
@keyframes spin{to{transform:rotate(360deg)}}

.lf-notice{margin-top:.9rem;padding:.78rem .95rem;border-radius:var(--r-md);font-size:.82rem;line-height:1.5}
.lf-notice.is-info{background:rgba(125,211,252,.14);border:1px solid rgba(125,211,252,.4);color:#1B4F72}
.lf-notice.is-error{background:rgba(229,72,77,.10);border:1px solid rgba(229,72,77,.34);color:#9A2B2E}

.divider{display:flex;align-items:center;gap:.9rem;margin:1.6rem 0 1.1rem;color:var(--ink-soft);font-size:.78rem}
.divider::before,.divider::after{content:'';flex:1;height:1px;background:var(--line-light)}

.btn-social{
  display:flex;align-items:center;justify-content:center;gap:.7rem;width:100%;padding:.82rem 1rem;border-radius:var(--r-full);
  border:1px solid var(--line-light);background:var(--white);font-family:var(--font-sans);font-weight:560;font-size:.88rem;color:var(--ink);
  cursor:pointer;transition:border-color var(--dur-fast) var(--ease),background var(--dur-fast) var(--ease),transform var(--dur-fast) var(--ease);
  margin-bottom:.7rem;
}
.btn-social:hover:not(:disabled){border-color:#D2D2D7;background:var(--paper-2)}
.btn-social:active:not(:disabled){transform:scale(.985)}
.btn-social:focus-visible{outline:none;box-shadow:0 0 0 4px rgba(125,211,252,.4)}
.btn-social:disabled{opacity:.5;cursor:not-allowed;position:relative}
.soon-badge{font-size:.62rem;font-weight:600;color:var(--ink-soft);background:var(--paper);
  border:1px solid var(--line-light);padding:.15rem .5rem;border-radius:var(--r-full);margin-left:.2rem}

.signup-line{text-align:center;font-size:.86rem;color:var(--ink-soft);margin-top:.4rem}
.signup-line a{color:var(--ink);font-weight:620;text-decoration:none}
.signup-line a:hover{color:var(--accent-text)}
.signup-line-muted{font-size:.78rem;color:var(--ink-tenue);line-height:1.6}

/* Bloqueo de /register/ mientras el registro público esté deshabilitado
   (ver src/shared/config/feature-flags.js). Se agrega vía script inline
   síncrono antes del primer pintado, para no mostrar el formulario. */
html.route-pending .login-shell{visibility:hidden}

.terms{text-align:center;font-size:.74rem;color:var(--ink-tenue);max-width:390px;margin:1.5rem auto 0;line-height:1.6}
.terms a{color:var(--ink-soft);text-decoration:underline}

/* ══════════════════════════════════════════════════════════════
   RESPONSIVE
   ══════════════════════════════════════════════════════════════ */
@media(max-width:1080px){
  .login-shell{grid-template-columns:1fr 1fr}
  .login-visual{padding:2.1rem}
  .login-form-panel{padding:2.1rem 2.3rem 1.7rem}
}

@media(max-width:760px){
  body{padding:0;align-items:flex-start}
  .login-shell{
    width:100%;height:auto;min-height:100vh;
    grid-template-columns:1fr;grid-template-rows:auto 1fr;
    border-radius:0;box-shadow:none;
  }
  .login-visual{padding:1.7rem 1.4rem 1.9rem;min-height:300px}
  .lv-tags{display:none}
  .lv-copy{max-width:none}
  .lv-copy h1{font-size:1.55rem}
  .lv-copy p{display:none}
  .ai-canvas{width:min(320px,70%);height:180px;top:6%}
  .lv-halo{width:min(420px,90%)}

  .login-form-panel{padding:1.9rem 1.4rem 1.7rem;overflow-y:visible}
  .lf-content{max-width:none}
  .btn-social,.btn-login{width:100%}
}

@media(max-width:400px){
  .lv-copy h1{font-size:1.35rem}
  .lf-head h2{font-size:1.6rem}
}

/* ══════════════════════════════════════════════════════════════
   MODO OSCURO — el panel visual ya es oscuro; aquí se adapta el
   panel del formulario y la superficie de la tarjeta.
   ══════════════════════════════════════════════════════════════ */
@media (prefers-color-scheme: dark){
  :root{
    --white:#141416; --paper:#0B0B0C; --paper-2:#1C1C1F;
    --ink:#F5F5F7; --ink-soft:#B0B0B5; --ink-tenue:#8E8E93;
    --line-light:#2C2C2E; --line-hairline:rgba(255,255,255,.07);
  }
  body{background:#0B0B0C}
  .login-shell{box-shadow:0 40px 90px -28px rgba(0,0,0,.7), 0 0 0 1px var(--line-hairline)}
  .btn-login{background:var(--ink);color:#0B0B0C}
  .btn-login:hover:not(:disabled){background:#E4E4E7}
  .btn-social{background:var(--paper-2)}
  .btn-social:hover:not(:disabled){background:#26262A;border-color:#3A3A3C}
  .field input{background:var(--paper-2)}
  .field input:disabled{background:#0B0B0C}
  .pw-toggle:hover{background:var(--paper-2)}
  .lf-notice.is-info{color:#A5D8F5}
  .lf-notice.is-error{color:#F5A3A5}
  .soon-badge{background:var(--paper-2)}
  .terms-check input,.remember input{accent-color:var(--accent)}
  .forgot-link,.signup-line a:hover{color:var(--accent)}
}