/* ============================================================
 * SARIROTI — Auth Pages Shared Styles (login + register)
 * ============================================================ */

:root {
  --navy: #0D2772; --navy-dark: #082070; --navy-light: #1E4A8A;
  --gold: #F4B400; --gold-dark: #D99F00; --gold-light: #F7C941;
  --cream: #FBF9F5; --paper: #F8F5ED; --ink: #0F172A; --ink-light: #64748B;

  --radius: 24px;
  --shadow: 0 30px 100px rgba(13,39,114,0.18);
  --shadow-glow: 0 0 60px rgba(244,180,0,0.22);
  --ease: cubic-bezier(0.22, 1, 0.36, 1);

  --header-h: 110px;
  --footer-h: 72px;
  --header-pad-x: 14px;

  --form-w: 420px;
  --content-w: 520px;
  --card-pad-x: 44px;
  --card-pad-y: 44px;
  --card-gutter: 28px;
  --field-h: 54px;
}
@media (min-width: 576px){ :root{ --header-pad-x: 18px; } }
@media (min-width: 992px){
  :root{ --header-h: 140px; --footer-h: 80px; --header-pad-x: 28px; }
}
@media (max-width: 520px){
  :root{
    --header-h: 96px;
    --footer-h: 66px;
    --form-w: 100%;
    --content-w: 100%;
    --card-pad-x: 18px;
    --card-pad-y: 22px;
    --card-gutter: 18px;
  }
}

* { box-sizing: border-box; }
html, body { height: 100%; }

body{
  margin: 0;
  font-family: 'Inter', -apple-system, sans-serif;
  color: var(--ink);
  line-height: 1.6;
  overflow: hidden;
  background-blend-mode: overlay;
}

.app{
  height: 100vh;
  display: flex;
  flex-direction: column;
}
@supports (height: 100dvh){
  .app{ height: 100dvh; }
}

/* Particles */
.particles { position: fixed; inset: 0; z-index: -1; pointer-events: none; }
.particle{
  position:absolute; width:8px; height:8px;
  background: radial-gradient(circle, var(--gold-light) 20%, var(--gold) 60%, transparent 80%);
  border-radius:50%;
  box-shadow: 0 0 20px var(--gold), 0 0 40px rgba(244,180,0,0.3);
  opacity:0.85; animation: float-particle-overkill linear infinite;
  transform: translateZ(0);
}
.particle:nth-child(1) { top: 10%; left: 15%; animation-duration: 18s; animation-delay: 0s; }
.particle:nth-child(2) { top: 20%; left: 85%; animation-duration: 22s; animation-delay: 1s; }
.particle:nth-child(3) { top: 55%; left: 5%;  animation-duration: 20s; animation-delay: 2s; }
.particle:nth-child(4) { top: 75%; left: 75%; animation-duration: 25s; animation-delay: 3s; }
.particle:nth-child(5) { top: 35%; left: 92%; animation-duration: 19s; animation-delay: 4s; }
.particle:nth-child(6) { top: 65%; left: 35%; animation-duration: 23s; animation-delay: 5s; }
.particle:nth-child(7) { top: 5%;  left: 55%; animation-duration: 21s; animation-delay: 6s; }
.particle:nth-child(8) { top: 85%; left: 20%; animation-duration: 24s; animation-delay: 7s; }
.particle:nth-child(9) { top: 45%; left: 65%; animation-duration: 17s; animation-delay: 8s; }
.particle:nth-child(10){ top: 15%; left: 45%; animation-duration: 26s; animation-delay: 9s; }
.particle:nth-child(11){ top: 58%; left: 82%; animation-duration: 19s; animation-delay: 2.5s; }
.particle:nth-child(12){ top: 32%; left: 28%; animation-duration: 23s; animation-delay: 6.5s; }

@keyframes float-particle-overkill {
  0% { transform: translateY(0) rotate(0deg) scale(1); opacity: 0.85; }
  20% { transform: translateY(-30px) rotate(90deg) scale(1.2); opacity: 0.4; }
  40% { transform: translateY(-60px) rotate(180deg) scale(0.9); opacity: 0.7; }
  60% { transform: translateY(-30px) rotate(270deg) scale(1.1); opacity: 0.3; }
  80% { transform: translateY(-10px) rotate(360deg) scale(1.3); opacity: 0.6; }
  100% { transform: translateY(0) rotate(720deg) scale(1); opacity: 0.85; }
}

/* Header */
header{
  height: var(--header-h);
  flex: 0 0 var(--header-h);
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(13,39,114,0.94);
  backdrop-filter: blur(18px);
  border-bottom: 3px solid rgba(244,180,0,0.35);
  box-shadow: var(--shadow);
  padding-top: env(safe-area-inset-top);
}
.topbar{ height: 100%; display:flex; align-items:center; }

.logo-hero{
  width: 64px; height: 64px; object-fit: contain;
  filter: drop-shadow(0 12px 32px rgba(244,180,0,0.45)) drop-shadow(0 0 24px rgba(244,180,0,0.25));
  transition: all 0.4s var(--ease);
}
@media (min-width: 992px){
  .logo-hero{ width: 100px; height: 100px; }
}
.brand-main{
  margin:0; font-weight:900; line-height:1.05; letter-spacing:-0.03em;
  font-size: clamp(16px, 4.6vw, 48px);
  background: linear-gradient(135deg, var(--gold), var(--gold-light));
  -webkit-background-clip:text; -webkit-text-fill-color:transparent;
}
.brand-subtitle{
  margin:6px 0 0 0; font-size: 11px; font-weight: 800; letter-spacing: 1.2px;
  text-transform: uppercase;
  background: linear-gradient(135deg, var(--gold), var(--gold-light));
  -webkit-background-clip:text; -webkit-text-fill-color:transparent;
}
@media (min-width: 768px){
  .brand-subtitle{ font-size: 14px; letter-spacing: 1.4px; }
}

/* Main content area */
main{
  flex: 1 1 auto;
  min-height: 0;
  display: flex;
  justify-content: center;
  align-items: center;
  padding: 10px 0;
}

/* Auth card (login-container / register-container) */
.login-container,
.register-container{
  display: inline-grid;
  grid-template-columns: 1fr;
  align-items: center;
  padding: var(--card-pad-y) var(--card-pad-x);
  border-radius: var(--radius);
  background:
    linear-gradient(145deg, rgba(255,255,255,0.92), rgba(251,249,245,0.85)),
    rgba(255,255,255,0.95);
  backdrop-filter: blur(40px) saturate(120%);
  border: 1px solid rgba(244,180,0,0.25);
  box-shadow: var(--shadow), var(--shadow-glow), inset 0 1px 0 rgba(255,255,255,0.6);
  width: max-content;
  max-width: calc(100vw - var(--card-gutter));
  margin: 0 auto;
  opacity: 0;
  animation: premiumCardFloat 1.4s var(--ease) 0.15s forwards;
}

@keyframes premiumCardFloat {
  0% { opacity: 0; transform: translateY(60px) scale(0.92); }
  50% { opacity: 0.85; transform: translateY(-10px) scale(1.02); }
  100% { opacity: 1; transform: translateY(0) scale(1); }
}

.login-center,
.register-center{
  width: min(var(--form-w), 100%);
  display:flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
}

.login-title,
.register-title{
  text-align: center;
  margin: 0 0 26px 0;
  font-size: clamp(32px, 4.8vw, 46px);
  font-weight: 900;
  line-height: 1.1;
  background: linear-gradient(135deg, var(--navy), var(--navy-light), #2563EB);
  -webkit-background-clip: text; -webkit-text-fill-color: transparent;
  letter-spacing: -0.03em;
  position: relative;
}
.login-title::after,
.register-title::after{
  content:'';
  position:absolute;
  bottom: -14px;
  left: 50%;
  transform: translateX(-50%);
  width: 90px;
  height: 4px;
  background: linear-gradient(90deg, var(--gold), var(--gold-light));
  border-radius: 2px;
  box-shadow: 0 4px 20px rgba(244,180,0,0.5);
}

/* Form fields */
.form-fields{
  display: grid;
  grid-template-columns: 1fr;
  gap: 18px;
  width: 100%;
  margin-bottom: 18px;
  margin-top: 6px;
}

.form-label{
  display:block;
  margin-bottom: 10px;
  font-weight: 800;
  color: var(--navy);
  font-size: 13px;
  letter-spacing: 0.6px;
  text-transform: uppercase;
}

.form-input{
  width: 100%;
  height: var(--field-h, 54px);
  padding: 0 18px;
  font-size: 16px;
  border: 2px solid rgba(13,39,114,0.12);
  border-radius: var(--radius);
  background: linear-gradient(145deg, rgba(255,255,255,0.9), rgba(251,249,245,0.85));
  backdrop-filter: blur(20px) saturate(110%);
  transition: box-shadow 0.35s var(--ease), border-color 0.35s var(--ease);
  font-family: inherit;
  box-shadow: 0 4px 20px rgba(0,0,0,0.08), inset 0 1px 0 rgba(255,255,255,0.8);
  display: block;
  caret-color: var(--ink);
  cursor: text;
}
.form-input:focus{
  outline: none;
  border-color: var(--gold);
  box-shadow: 0 0 0 3px rgba(244,180,0,0.15), 0 8px 32px rgba(244,180,0,0.15), var(--shadow-glow), inset 0 1px 0 rgba(255,255,255,1);
  transform: none;
}
.form-input:focus-visible{
  outline: 2px solid rgba(244,180,0,0.35);
  outline-offset: 2px;
}
.form-input.error{
  border-color: #EF4444;
  box-shadow: 0 0 0 3px rgba(239,68,68,0.15), 0 4px 16px rgba(239,68,68,0.15);
}

.input-wrap{ position: relative; width: 100%; }
.input-wrap .form-input{ padding-right: 56px; }
.input-wrap .input-icon{
  position: absolute;
  right: 12px;
  top: 50%;
  transform: translateY(-50%);
  width: 38px;
  height: 38px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 16px;
  color: var(--ink-light);
  transition: all 0.3s var(--ease);
  background: transparent;
  border: none;
  cursor: pointer;
  padding: 0;
}
.input-wrap .input-icon:hover{
  color: var(--navy);
  background: rgba(13,39,114,0.08);
  border-radius: 10px;
}
.input-wrap .input-icon.active{
  color: var(--gold);
  background: rgba(244,180,0,0.12);
  border-radius: 10px;
}

/* Error message */
.error-message{
  color: #EF4444;
  font-size: 13px;
  margin-top: 8px;
  font-weight: 700;
  display: none;
  animation: shakePremium 0.6s ease-in-out;
}
.error-message.show{ display:block; }
@keyframes shakePremium {
  0%, 100% { transform: translateX(0); }
  25% { transform: translateX(-4px); }
  75% { transform: translateX(4px); }
}

/* Primary button */
.sari-btn{
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 12px;
  padding: 16px 26px;
  font-size: 16px;
  font-weight: 900;
  line-height: 1.15;
  text-decoration: none;
  border-radius: var(--radius);
  position: relative;
  overflow: hidden;
  transition: all 0.35s var(--ease);
  cursor: pointer;
  text-transform: uppercase;
  letter-spacing: 0.9px;
  backdrop-filter: blur(24px);
  background: linear-gradient(135deg, var(--gold) 0%, var(--gold-light) 50%, var(--navy) 100%);
  color: white !important;
  text-shadow: 0 1px 2px rgba(0,0,0,0.2);
  border: 2px solid rgba(244,180,0,0.4);
  box-shadow:
    0 12px 40px rgba(244,180,0,0.4),
    0 8px 24px rgba(13,39,114,0.25),
    0 4px 12px rgba(244,180,0,0.2),
    inset 0 1px 0 rgba(255,255,255,0.4);
  width: 100%;
  height: 54px;
  font-family: inherit;
}
.sari-btn:hover{
  transform: translateY(-4px) scale(1.02);
  background: linear-gradient(135deg, var(--gold-light) 0%, var(--gold) 50%, var(--navy-light) 100%);
  box-shadow:
    0 20px 60px rgba(244,180,0,0.5),
    0 12px 32px rgba(13,39,114,0.3),
    0 0 40px rgba(244,180,0,0.4),
    inset 0 1px 0 rgba(255,255,255,0.5);
  border-color: rgba(244,180,0,0.6);
}
.sari-btn:disabled{
  opacity: 0.7;
  cursor: not-allowed;
  transform: none;
  background: linear-gradient(135deg, var(--gold-dark) 0%, var(--gold) 100%);
  box-shadow: 0 4px 12px rgba(244,180,0,0.2);
}

/* Back link */
.back-link{
  display: inline-flex;
  align-items: center;
  gap: 10px;
  margin-top: 14px;
  padding: 14px 18px;
  color: var(--navy);
  text-decoration: none;
  font-weight: 800;
  font-size: 14px;
  border-radius: var(--radius);
  transition: all 0.35s var(--ease);
  background: linear-gradient(145deg, rgba(251,249,245,0.9), rgba(255,255,255,0.95));
  backdrop-filter: blur(20px);
  border: 2px solid rgba(244,180,0,0.3);
  box-shadow:
    0 6px 24px rgba(244,180,0,0.2),
    0 4px 12px rgba(13,39,114,0.1),
    inset 0 1px 0 rgba(255,255,255,0.8);
  width: 100%;
  justify-content: center;
  height: 52px;
}
.back-link:hover{
  transform: translateY(-2px);
  color: var(--navy);
  background: linear-gradient(145deg, rgba(244,180,0,0.08), rgba(251,249,245,0.95));
  border-color: var(--gold);
  box-shadow: 0 12px 32px rgba(244,180,0,0.3), 0 0 20px rgba(244,180,0,0.15);
}

/* Footer */
footer{
  height: var(--footer-h);
  flex: 0 0 var(--footer-h);
  background: rgba(13,39,114,0.95);
  backdrop-filter: blur(18px);
  border-top: 2px solid rgba(244,180,0,0.4);
  box-shadow: 0 -12px 40px rgba(13,39,114,0.15);
  display:flex;
  align-items:center;
  padding-bottom: env(safe-area-inset-bottom);
}
.footer-text{
  margin:0;
  font-size: 12px;
  font-weight: 500;
  color: rgba(255,255,255,0.92);
  line-height: 1.35;
  text-align: center;
}
@media (min-width: 768px){
  .footer-text{ font-size: 13px; }
}

/* Reduced motion */
@media (prefers-reduced-motion: reduce){
  * { animation-duration: 1ms !important; animation-iteration-count: 1 !important; transition-duration: 1ms !important; }
}