/* ========================================
   PLN Icon Plus Portal — Main Styles
   3D · Professional · International
   ======================================== */

:root {
  --navy:      #0A1628;
  --navy-2:    #0F2040;
  --navy-3:    #162952;
  --blue:      #0066CC;
  --blue-2:    #0080FF;
  --blue-light:#E0EEFF;
  --gold:      #FFB800;
  --gold-2:    #FFC933;
  --white:     #FFFFFF;
  --gray-50:   #F8FAFC;
  --gray-100:  #F1F5F9;
  --gray-200:  #E2E8F0;
  --gray-400:  #94A3B8;
  --gray-500:  #64748B;
  --gray-700:  #334155;
  --gray-900:  #0F172A;
  --success:   #059669;
  --error:     #DC2626;
  --shadow-sm: 0 1px 3px rgba(0,0,0,.12), 0 1px 2px rgba(0,0,0,.08);
  --shadow-md: 0 4px 16px rgba(0,0,0,.12), 0 2px 6px rgba(0,0,0,.08);
  --shadow-lg: 0 10px 40px rgba(0,0,0,.15), 0 4px 12px rgba(0,0,0,.1);
  --shadow-blue: 0 8px 30px rgba(0,102,204,.25);
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 20px;
  --font-display: 'Exo 2', system-ui, sans-serif;
  --font-body: 'Inter', system-ui, sans-serif;
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }

body {
  font-family: var(--font-body);
  font-size: 14px;
  line-height: 1.6;
  color: var(--gray-700);
  background: var(--gray-50);
  -webkit-font-smoothing: antialiased;
}

a { text-decoration: none; color: inherit; }
img { max-width: 100%; display: block; }
button, input, select, textarea { font-family: inherit; }

/* ========================================
   LOGIN PAGE
   ======================================== */

.login-page {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--navy);
  overflow: hidden;
  position: relative;
}

/* Animated 3D Grid Background */
.grid-bg {
  position: fixed;
  inset: 0;
  perspective: 800px;
  z-index: 0;
}
.grid-canvas {
  position: absolute;
  inset: -50%;
  background-image:
    linear-gradient(rgba(0,102,204,0.12) 1px, transparent 1px),
    linear-gradient(90deg, rgba(0,102,204,0.12) 1px, transparent 1px);
  background-size: 60px 60px;
  transform: rotateX(60deg) translateZ(0) translateY(10%);
  animation: gridMove 20s linear infinite;
  will-change: transform;
}
@keyframes gridMove {
  from { background-position: 0 0, 0 0; }
  to   { background-position: 0 -60px, 0 0; }
}

/* Floating Orbs */
.orb {
  position: fixed;
  border-radius: 50%;
  filter: blur(80px);
  opacity: 0.2;
  z-index: 0;
  animation: orbFloat 8s ease-in-out infinite;
}
.orb-1 {
  width: 500px; height: 500px;
  background: radial-gradient(circle, #0066CC, transparent);
  top: -200px; right: -100px;
  animation-delay: 0s;
}
.orb-2 {
  width: 400px; height: 400px;
  background: radial-gradient(circle, #FFB800, transparent);
  bottom: -150px; left: -100px;
  animation-delay: -3s;
}
.orb-3 {
  width: 300px; height: 300px;
  background: radial-gradient(circle, #00A8FF, transparent);
  top: 50%; left: 50%;
  transform: translate(-50%,-50%);
  animation-delay: -6s;
}
@keyframes orbFloat {
  0%, 100% { transform: translateY(0) scale(1); }
  50%       { transform: translateY(-30px) scale(1.05); }
}

/* Login Card */
.login-wrapper {
  position: relative;
  z-index: 10;
  width: 100%;
  max-width: 440px;
  padding: 1.5rem;
}

.login-card {
  background: rgba(255,255,255,0.04);
  backdrop-filter: blur(24px);
  -webkit-backdrop-filter: blur(24px);
  border: 1px solid rgba(255,255,255,0.1);
  border-radius: var(--radius-lg);
  padding: 2.5rem 2rem;
  box-shadow: 0 20px 60px rgba(0,0,0,.4), inset 0 1px 0 rgba(255,255,255,0.08);
  transform-style: preserve-3d;
  animation: cardAppear 0.8s cubic-bezier(0.23, 1, 0.32, 1) both;
}

@keyframes cardAppear {
  from { opacity: 0; transform: translateY(30px) scale(0.97); }
  to   { opacity: 1; transform: translateY(0) scale(1); }
}

/* Logo */
.logo-area {
  display: flex;
  align-items: center;
  gap: 1rem;
  margin-bottom: 1.5rem;
}
.logo-mark svg { width: 48px; height: 48px; }
.logo-text { display: flex; flex-direction: column; }
.brand-main {
  font-family: var(--font-display);
  font-size: 1.75rem;
  font-weight: 800;
  color: var(--white);
  letter-spacing: -0.02em;
  line-height: 1;
}
.brand-plus { color: var(--gold); }
.brand-sub {
  font-size: 0.72rem;
  font-weight: 400;
  color: rgba(255,255,255,0.5);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  margin-top: 2px;
}

.login-divider {
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(255,255,255,0.15), transparent);
  margin-bottom: 1.5rem;
}

.login-title {
  font-family: var(--font-display);
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--white);
  margin-bottom: 0.35rem;
}
.login-desc {
  font-size: 0.85rem;
  color: rgba(255,255,255,0.45);
  margin-bottom: 1.75rem;
}

/* Alert */
.alert {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  padding: 0.75rem 1rem;
  border-radius: var(--radius-sm);
  font-size: 0.85rem;
  margin-bottom: 1.25rem;
}
.alert-error {
  background: rgba(220,38,38,0.15);
  border: 1px solid rgba(220,38,38,0.3);
  color: #FCA5A5;
}
.alert-success {
  background: rgba(5,150,105,0.15);
  border: 1px solid rgba(5,150,105,0.3);
  color: #6EE7B7;
}

/* Form Fields */
.field-group { margin-bottom: 1.25rem; }
.field-label {
  display: block;
  font-size: 0.8rem;
  font-weight: 500;
  color: rgba(255,255,255,0.7);
  margin-bottom: 0.45rem;
  letter-spacing: 0.02em;
}
.field-wrap {
  position: relative;
  display: flex;
  align-items: center;
}
.field-icon {
  position: absolute;
  left: 0.85rem;
  color: rgba(255,255,255,0.3);
  pointer-events: none;
  flex-shrink: 0;
}
.field-input {
  width: 100%;
  padding: 0.75rem 0.85rem 0.75rem 2.75rem;
  background: rgba(255,255,255,0.06);
  border: 1px solid rgba(255,255,255,0.1);
  border-radius: var(--radius-sm);
  color: var(--white);
  font-size: 0.9rem;
  transition: all 0.2s;
  outline: none;
}
.field-input::placeholder { color: rgba(255,255,255,0.25); }
.field-input:focus {
  background: rgba(0,102,204,0.12);
  border-color: rgba(0,128,255,0.5);
  box-shadow: 0 0 0 3px rgba(0,102,204,0.15);
}
.pwd-toggle {
  position: absolute;
  right: 0.85rem;
  background: none;
  border: none;
  color: rgba(255,255,255,0.3);
  cursor: pointer;
  padding: 0;
  display: flex;
  align-items: center;
  transition: color 0.2s;
}
.pwd-toggle:hover { color: rgba(255,255,255,0.7); }

/* Login Button */
.btn-login {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.6rem;
  padding: 0.85rem 1.5rem;
  background: linear-gradient(135deg, var(--blue), var(--blue-2));
  border: none;
  border-radius: var(--radius-sm);
  color: var(--white);
  font-family: var(--font-display);
  font-size: 0.95rem;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.25s;
  margin-top: 0.5rem;
  box-shadow: 0 4px 20px rgba(0,102,204,0.4);
  position: relative;
  overflow: hidden;
}
.btn-login::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(255,255,255,0.1), transparent);
  opacity: 0;
  transition: opacity 0.2s;
}
.btn-login:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 30px rgba(0,102,204,0.5);
}
.btn-login:hover::before { opacity: 1; }
.btn-login:active { transform: translateY(0); }

.login-footer {
  margin-top: 1.5rem;
  text-align: center;
  font-size: 0.72rem;
  color: rgba(255,255,255,0.25);
}

/* ========================================
   UTILITIES
   ======================================== */

.form-login { display: flex; flex-direction: column; }

/* Responsive */
@media (max-width: 480px) {
  .login-card { padding: 2rem 1.25rem; }
  .brand-main { font-size: 1.5rem; }
}