:root {
  --color-primary:   #7b2fff;
  --color-secondary: #00d4ff;
  --color-accent:    #a050ff;
  --color-bg:        #06010e;
  --color-surface:   #0c0519;
  --color-surface2:  #120824;
  --color-border:    rgba(123,47,255,0.22);
  --color-text:      #e4eaff;
  --color-text-dim:  #9aaad8;
  --font-display:    'Orbitron', monospace;
  --font-primary:    'Rajdhani', sans-serif;
  --font-mono:       'Share Tech Mono', monospace;
  --glow-cyan:       0 0 12px rgba(123,47,255,0.8), 0 0 35px rgba(123,47,255,0.35);
  --glow-magenta:    0 0 12px rgba(0,212,255,0.8), 0 0 35px rgba(0,212,255,0.35);
}
*,*::before,*::after{margin:0;padding:0;box-sizing:border-box;}
body{
  background:var(--color-bg);
  color:var(--color-text);
  font-family:var(--font-primary);
  min-height:100vh;
  overflow:hidden;
  cursor:none;
}
/* CURSOR */
.cursor-dot{width:8px;height:8px;background:var(--color-primary);border-radius:50%;position:fixed;pointer-events:none;z-index:9999;transform:translate(-50%,-50%);box-shadow:0 0 10px rgba(123,47,255,0.9),0 0 20px rgba(123,47,255,0.5);}
.cursor-ring{width:36px;height:36px;border:1px solid rgba(123,47,255,0.6);border-radius:50%;position:fixed;pointer-events:none;z-index:9998;transform:translate(-50%,-50%);transition:all 0.15s ease;opacity:0.6;}
.cursor-ring.hover{width:50px;height:50px;border-color:var(--color-secondary);}

/* CANVAS */
#bg-canvas{position:fixed;top:0;left:0;width:100%;height:100%;z-index:0;}
.grid-overlay{position:fixed;inset:0;z-index:1;pointer-events:none;background-image:linear-gradient(rgba(123,47,255,0.03) 1px,transparent 1px),linear-gradient(90deg,rgba(123,47,255,0.03) 1px,transparent 1px);background-size:50px 50px;}
.scanlines{position:fixed;inset:0;z-index:2;pointer-events:none;background:repeating-linear-gradient(0deg,transparent,transparent 2px,rgba(0,0,0,0.12) 2px,rgba(0,0,0,0.12) 4px);}
.vignette{position:fixed;inset:0;z-index:2;pointer-events:none;background:radial-gradient(ellipse at center,transparent 30%,rgba(0,0,0,0.9) 100%);}

/* LAYOUT */
.login-layout{
  position:relative;
  z-index:10;
  min-height:100vh;
  display:grid;
  grid-template-columns:1fr 480px;
}

/* LEFT PANEL */
.left-panel{
  display:flex;
  flex-direction:column;
  justify-content:center;
  padding:4rem;
  position:relative;
}
.back-link{
  position:absolute;
  top:2rem; left:2rem;
  font-family:var(--font-mono);
  font-size:0.7rem;
  letter-spacing:0.15em;
  text-transform:uppercase;
  color:var(--color-text-dim);
  text-decoration:none;
  display:flex;
  align-items:center;
  gap:0.5rem;
  transition:color 0.2s;
}
.back-link:hover{color:var(--color-primary);}
.back-link::before{content:'←';}

.brand-area{margin-bottom:3rem;}
.brand-logo{
  font-family:var(--font-display);
  font-size:2.5rem;
  font-weight:900;
  letter-spacing:0.1em;
  color:var(--color-primary);
  text-shadow:var(--glow-cyan);
  text-decoration:none;
  display:block;
  margin-bottom:0.5rem;
  background:linear-gradient(135deg,var(--color-primary),var(--color-secondary));
  -webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text;
  filter:drop-shadow(0 0 20px rgba(123,47,255,0.5));
}
.brand-sub{
  font-family:var(--font-mono);
  font-size:0.65rem;
  letter-spacing:0.35em;
  color:var(--color-secondary);
  text-transform:uppercase;
  text-shadow:0 0 8px rgba(0,212,255,0.5);
}

.left-headline{
  font-family:var(--font-display);
  font-size:clamp(2rem,4vw,3.5rem);
  font-weight:900;
  line-height:1;
  letter-spacing:0.02em;
  color:#fff;
  margin-bottom:1.5rem;
}
.left-headline .hl{
  display:block;
  background:linear-gradient(90deg,var(--color-primary),var(--color-secondary));
  -webkit-background-clip:text;
  -webkit-text-fill-color:transparent;
  background-clip:text;
}

.left-desc{
  color:var(--color-text-dim);
  font-size:1rem;
  line-height:1.7;
  max-width:400px;
  margin-bottom:3rem;
}

/* SERVICE SELECTOR */
.service-label{
  font-family:var(--font-mono);
  font-size:0.65rem;
  letter-spacing:0.3em;
  text-transform:uppercase;
  color:var(--color-text-dim);
  margin-bottom:1rem;
}

.service-selector{
  display:flex;
  flex-direction:column;
  gap:0.8rem;
  max-width:420px;
}

.service-option{
  display:flex;
  align-items:center;
  gap:1.2rem;
  padding:1rem 1.2rem;
  border:1px solid var(--color-border);
  background:var(--color-surface);
  cursor:none;
  transition:all 0.3s;
  position:relative;
  overflow:hidden;
}
.service-option::before{
  content:'';
  position:absolute;
  top:0;left:0;
  width:3px;height:100%;
  background:var(--color-primary);
  transform:scaleY(0);
  transition:transform 0.3s;
}
.service-option:hover,
.service-option.active{
  border-color:rgba(123,47,255,0.45);
  background:rgba(123,47,255,0.07);
}
.service-option.active::before,
.service-option:hover::before{transform:scaleY(1);}
.service-option.disabled{opacity:0.4;cursor:not-allowed;}

.svc-icon{
  width:36px;height:36px;
  display:flex;align-items:center;justify-content:center;
  font-size:1.3rem;
  flex-shrink:0;
}
.svc-info{flex:1;}
.svc-name{
  font-family:var(--font-display);
  font-size:0.8rem;
  font-weight:600;
  letter-spacing:0.1em;
  color:#fff;
  margin-bottom:0.2rem;
}
.svc-desc{
  font-family:var(--font-mono);
  font-size:0.6rem;
  letter-spacing:0.05em;
  color:var(--color-text-dim);
}
.svc-badge{
  font-family:var(--font-mono);
  font-size:0.5rem;
  letter-spacing:0.15em;
  text-transform:uppercase;
  padding:0.2rem 0.5rem;
  border:1px solid rgba(123,47,255,0.4);
  color:var(--color-primary);
  clip-path:polygon(4px 0,100% 0,calc(100% - 4px) 100%,0 100%);
}
.svc-badge.soon{border-color:rgba(0,212,255,0.3);color:var(--color-secondary);}

/* RIGHT PANEL - FORM */
.right-panel{
  background:var(--color-surface);
  border-left:1px solid var(--color-border);
  padding:3rem;
  display:flex;
  flex-direction:column;
  justify-content:center;
  position:relative;
  overflow:hidden;
}
.right-panel::before{
  content:'';
  position:absolute;
  top:0;left:0;right:0;
  height:2px;
  background:linear-gradient(90deg,transparent,var(--color-primary),var(--color-secondary),transparent);
  background-size:200% 100%;
  animation:rp-shine 3s linear infinite;
}
@keyframes rp-shine{0%{background-position:0% 0;}100%{background-position:200% 0;}}

.form-header{margin-bottom:2.5rem;}
.form-title{
  font-family:var(--font-display);
  font-size:1.4rem;
  font-weight:800;
  letter-spacing:0.08em;
  color:#fff;
  margin-bottom:0.4rem;
}
.form-subtitle{
  font-family:var(--font-mono);
  font-size:0.65rem;
  letter-spacing:0.15em;
  color:var(--color-text-dim);
  text-transform:uppercase;
}

/* Selected service indicator */
.active-service-indicator{
  display:flex;
  align-items:center;
  gap:0.8rem;
  padding:0.8rem 1rem;
  background:rgba(123,47,255,0.08);
  border:1px solid rgba(123,47,255,0.3);
  margin-bottom:2rem;
  clip-path:polygon(8px 0,100% 0,calc(100% - 8px) 100%,0 100%);
}
.asi-icon{font-size:1rem;}
.asi-name{
  font-family:var(--font-display);
  font-size:0.75rem;
  font-weight:600;
  letter-spacing:0.1em;
  color:var(--color-secondary);
}
.asi-label{
  font-family:var(--font-mono);
  font-size:0.68rem;
  letter-spacing:0.12em;
  color:var(--color-text-dim);
  text-transform:uppercase;
}
.asi-dot{
  width:6px;height:6px;
  background:var(--color-secondary);
  border-radius:50%;
  margin-left:auto;
  animation:pulse-dot 2s ease-in-out infinite;
  box-shadow:0 0 8px rgba(0,212,255,0.8);
}
@keyframes pulse-dot{0%,100%{box-shadow:0 0 0 0 rgba(0,212,255,0.7);}50%{box-shadow:0 0 0 6px rgba(0,212,255,0);}}

/* FORM FIELDS */
.field-group{margin-bottom:1.5rem;}
.field-label{
  font-family:var(--font-mono);
  font-size:0.6rem;
  letter-spacing:0.25em;
  text-transform:uppercase;
  color:var(--color-text-dim);
  margin-bottom:0.5rem;
  display:block;
}
.field-wrap{position:relative;}
.field-input{
  width:100%;
  background:var(--color-surface2);
  border:1px solid var(--color-border);
  color:var(--color-text);
  font-family:var(--font-mono);
  font-size:0.9rem;
  letter-spacing:0.05em;
  padding:0.9rem 1rem;
  outline:none;
  transition:all 0.25s;
  -webkit-appearance:none;
}
.field-input:focus{
  border-color:var(--color-primary);
  box-shadow:0 0 0 1px rgba(123,47,255,0.4), inset 0 0 20px rgba(123,47,255,0.04);
}
.field-input::placeholder{color:rgba(200,216,232,0.25);letter-spacing:0.05em;}
.field-input:autofill,
.field-input:-webkit-autofill{
  -webkit-box-shadow:0 0 0 100px var(--color-surface2) inset;
  -webkit-text-fill-color:var(--color-text);
}

.field-icon{
  position:absolute;
  right:1rem;top:50%;
  transform:translateY(-50%);
  color:var(--color-text-dim);
  font-size:0.85rem;
  pointer-events:none;
}
.toggle-pw{pointer-events:all;cursor:none;padding:0.3rem;right:0.5rem;}

/* Error message */
.field-error{
  font-family:var(--font-mono);
  font-size:0.6rem;
  letter-spacing:0.1em;
  color:#ff003c;
  margin-top:0.4rem;
  display:none;
}

/* Alert box */
.alert{
  padding:0.8rem 1rem;
  border:1px solid;
  margin-bottom:1.5rem;
  font-family:var(--font-mono);
  font-size:0.7rem;
  letter-spacing:0.05em;
  display:none;
}
.alert-error{border-color:#ff003c;background:rgba(255,0,60,0.08);color:#ff003c;}
.alert-success{border-color:var(--color-secondary);background:rgba(0,212,255,0.06);color:var(--color-secondary);}

/* Submit */
.btn-submit{
  width:100%;
  padding:1rem;
  font-family:var(--font-display);
  font-size:0.85rem;
  font-weight:700;
  letter-spacing:0.15em;
  text-transform:uppercase;
  background:linear-gradient(135deg,var(--color-primary),#5918cc);
  color:#fff;
  border:none;
  cursor:none;
  transition:all 0.3s;
  position:relative;
  overflow:hidden;
  margin-bottom:1.5rem;
  clip-path:polygon(10px 0,100% 0,calc(100% - 10px) 100%,0 100%);
  box-shadow:0 0 20px rgba(123,47,255,0.4);
}
.btn-submit:hover{
  background:linear-gradient(135deg,#9040ff,var(--color-primary));
  box-shadow:0 0 35px rgba(123,47,255,0.7);
}
.btn-submit:disabled{opacity:0.5;cursor:not-allowed;color:rgba(228,234,255,0.4);background:linear-gradient(135deg,rgba(123,47,255,0.3),rgba(89,24,204,0.3));box-shadow:none;}
.btn-submit .spinner{
  display:none;
  width:16px;height:16px;
  border:2px solid transparent;
  border-top-color:var(--color-bg);
  border-radius:50%;
  animation:spin 0.7s linear infinite;
  margin:0 auto;
}
@keyframes spin{to{transform:rotate(360deg);}}

.form-footer{text-align:center;}
.form-footer a,.form-footer span{
  font-family:var(--font-mono);
  font-size:0.65rem;
  letter-spacing:0.1em;
  color:var(--color-text-dim);
  text-decoration:none;
  transition:color 0.2s;
}
.form-footer a:hover{color:var(--color-primary);}
.form-divider{margin:0 0.5rem;opacity:0.3;}

/* Backdoor link */
.backdoor-link{
  position:absolute;
  bottom:1.5rem;right:1.5rem;
  font-family:var(--font-mono);
  font-size:0.5rem;
  letter-spacing:0.15em;
  color:rgba(123,47,255,0.2);
  text-decoration:none;
  transition:color 0.3s;
  text-transform:uppercase;
}
.backdoor-link:hover{color:rgba(123,47,255,0.5);}

/* TABS: login / register toggle */
.form-tabs{
  display:grid;
  grid-template-columns:1fr 1fr;
  border:1px solid var(--color-border);
  margin-bottom:2rem;
}
.form-tab{
  padding:0.7rem;
  text-align:center;
  font-family:var(--font-mono);
  font-size:0.65rem;
  letter-spacing:0.15em;
  text-transform:uppercase;
  color:var(--color-text-dim);
  cursor:none;
  transition:all 0.25s;
  background:transparent;
  border:none;
}
.form-tab.active{
  background:rgba(123,47,255,0.12);
  color:var(--color-primary);
  text-shadow:0 0 8px rgba(123,47,255,0.6);
}

/* Progress bar */
.loading-bar{
  position:absolute;
  top:2px;left:0;
  height:2px;
  background:linear-gradient(90deg,var(--color-primary),var(--color-secondary));
  width:0%;
  transition:width 0.8s ease;
  box-shadow:0 0 12px rgba(123,47,255,0.8);
}

/* Responsive — Tablet */
@media(max-width:900px){
  .login-layout{grid-template-columns:1fr;overflow-y:auto;}
  body{overflow:auto;}
  .left-panel{padding:5rem 2.5rem 2rem;min-height:auto;}
  .right-panel{padding:2.5rem 2rem;min-height:auto;}
  .right-panel::before{top:0;}
  .left-desc{max-width:100%;}
}

/* Responsive — Mobile */
@media(max-width:640px){
  .login-layout{
    display:flex;
    flex-direction:column;
    overflow-y:auto;
  }
  body{overflow:auto;}

  /* Left panel: compact brand + back-link on mobile */
  .left-panel{
    order:1;
    padding:1rem 1.25rem 0.5rem;
    display:flex;flex-wrap:wrap;align-items:center;gap:0.6rem;
  }
  .back-link{
    position:static;
    display:inline-flex;
    margin-bottom:0;
  }
  .brand-area{margin:0;display:flex;align-items:center;gap:0.5rem;}
  .brand-logo{font-size:1.3rem;}
  .brand-sub,.brand-line{display:none;}
  .left-headline,
  .left-desc{display:none;}
  .service-label{display:none;}
  .service-selector{display:flex;width:100%;gap:0.5rem;margin-top:0.3rem;}
  .service-option{padding:0.6rem 0.8rem;flex:1;}
  .service-name{font-size:0.65rem;}
  .service-desc{display:none;}

  /* Formulario debajo */
  .right-panel{
    order:2;
    padding:1.5rem 1.25rem 2rem;
    padding-bottom:max(2rem,env(safe-area-inset-bottom));
    min-height:auto;
    border-left:none;
    border-top:1px solid var(--color-border);
  }

  /* Inputs: font-size 16px para evitar zoom en iOS */
  .field-input{
    font-size:16px;
    padding:0.85rem 2.8rem 0.85rem 0.9rem;
    min-height:48px;
  }

  /* Botón submit: altura táctil */
  .btn-submit{
    min-height:52px;
    font-size:0.9rem;
    cursor:pointer;
    clip-path:polygon(6px 0,100% 0,calc(100% - 6px) 100%,0 100%);
  }

  /* Tabs */
  .form-tab{
    min-height:44px;
    cursor:pointer;
    font-size:0.7rem;
  }

  /* Active service indicator */
  .active-service-indicator{padding:0.65rem 0.9rem;margin-bottom:1.2rem;}

  /* Form header */
  .form-header{margin-bottom:1.5rem;}
  .form-title{font-size:1.2rem;}

  /* Backdoor link */
  .backdoor-link{position:static;display:block;text-align:right;margin-top:1.5rem;}

  /* Toggle contraseña: área táctil mayor */
  .toggle-pw{padding:0.5rem;cursor:pointer;right:0.5rem;}
}

/* Cursor personalizado: desactivar en dispositivos táctiles */
@media(hover:none) and (pointer:coarse){
  body{cursor:auto;}
  .cursor-dot,.cursor-ring{display:none;}
  .service-option,.btn-submit,.form-tab,.toggle-pw,.back-link,a{cursor:pointer;}
}

/* ── FOCUS VISIBLE (accessibility) ── */
:focus-visible{outline:2px solid var(--color-primary);outline-offset:2px;}
button:focus-visible{outline:2px solid var(--color-secondary);outline-offset:2px;}
.field-input:focus-visible{outline:none;} /* ya tiene border highlight */
:focus:not(:focus-visible){outline:none;}

/* ── REDUCED MOTION ── */
@media(prefers-reduced-motion:reduce){
  *,*::before,*::after{animation-duration:.01ms!important;transition-duration:.01ms!important;animation-iteration-count:1!important;}
  .cursor-dot,.cursor-ring{display:none;}
  body{cursor:auto;}
}