/* ============================================
   KIBI AUTH PAGE STYLES  —  Phase 01 v3
   Login ID + PIN System
   ============================================ */

:root {
  --kibi-coral: #FF4466;
  --kibi-coral-glow: rgba(255,68,102,0.35);
  --kibi-teal: #00C9A7;
  --kibi-teal-glow: rgba(0,201,167,0.3);
  --kibi-purple: #845EC2;
  --kibi-gold: #FFD54F;
  --space-bg: #03050a;
  --space-bg-light: #0a0e29;
  --space-surface: rgba(255,255,255,0.03);
  --space-border: rgba(255,255,255,0.08);
  --text-primary: #F8FAFC;
  --text-secondary: rgba(248,250,252,0.65);
  --text-muted: rgba(248,250,252,0.4);
  --glass: rgba(10,14,41,0.7);
  --glass-border: rgba(255,255,255,0.1);
  --error: #FF4466;
  --success: #00C9A7;
  --warning: #FFD54F;
  --radius: 16px;
  --radius-lg: 24px;
}

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

html { font-size: 16px; }

body {
  font-family: 'Inter', sans-serif;
  color: var(--text-primary);
  background: var(--space-bg);
  min-height: 100vh;
  overflow-x: hidden;
  line-height: 1.5;
}

/* ---- Starfield Background ---- */
#starfield {
  position: fixed;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  background: radial-gradient(circle at 50% 50%, var(--space-bg-light) 0%, var(--space-bg) 100%);
  overflow: hidden;
}

.star {
  position: absolute;
  border-radius: 50%;
  background: #FFF;
  box-shadow: 0 0 4px rgba(255,255,255,0.8);
  animation: twinkle 5s ease-in-out infinite alternate;
  opacity: 0.3;
}

@keyframes twinkle {
  0% { opacity: 0.1; transform: scale(0.8); }
  100% { opacity: 0.9; transform: scale(1.3); }
}

/* ---- Toast Notifications ---- */
.toast-container {
  position: fixed;
  top: 24px;
  right: 24px;
  z-index: 1000;
  display: flex;
  flex-direction: column;
  gap: 12px;
  max-width: 380px;
  pointer-events: none;
}

.toast {
  background: var(--glass);
  backdrop-filter: blur(20px);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius);
  padding: 16px 20px;
  color: var(--text-primary);
  font-size: 14px;
  font-weight: 500;
  box-shadow: 0 10px 40px rgba(0,0,0,0.4);
  transform: translateX(120%);
  opacity: 0;
  transition: all 0.4s cubic-bezier(0.4,0,0.2,1);
  pointer-events: auto;
  display: flex;
  align-items: center;
  gap: 12px;
}

.toast.show {
  transform: translateX(0);
  opacity: 1;
}

.toast.success { border-left: 4px solid var(--success); }
.toast.error   { border-left: 4px solid var(--error); }
.toast.warning { border-left: 4px solid var(--warning); }
.toast.info    { border-left: 4px solid var(--kibi-purple); }

.toast-icon { font-size: 20px; flex-shrink: 0; }
.toast-message { flex: 1; }

/* ---- Loading Overlay ---- */
.loader-overlay {
  position: fixed;
  inset: 0;
  background: rgba(3,5,10,0.85);
  backdrop-filter: blur(10px);
  z-index: 999;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 20px;
  transition: opacity 0.3s;
}

.loader-overlay.hidden {
  opacity: 0;
  pointer-events: none;
}

.loader-spinner {
  width: 56px;
  height: 56px;
  border: 3px solid var(--space-border);
  border-top-color: var(--kibi-coral);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
}

@keyframes spin { to { transform: rotate(360deg); } }

.loader-text {
  color: var(--text-secondary);
  font-size: 15px;
  font-weight: 500;
  animation: pulse 1.5s ease-in-out infinite;
}

@keyframes pulse { 0%,100%{opacity:0.6} 50%{opacity:1} }

/* ---- Auth Layout ---- */
.auth-wrapper {
  position: relative;
  z-index: 1;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 40px 20px;
}

/* ---- Logo ---- */
.auth-logo {
  display: flex;
  align-items: center;
  gap: 12px;
  text-decoration: none;
  margin-bottom: 32px;
  transition: transform 0.3s;
}

.auth-logo:hover { transform: scale(1.02); }

.logo-mark {
  width: 48px;
  height: 48px;
  border-radius: 14px;
  background: linear-gradient(135deg, var(--kibi-coral), var(--kibi-purple));
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 26px;
  box-shadow: 0 4px 20px var(--kibi-coral-glow);
}

.logo-text {
  font-family: 'Outfit', sans-serif;
  font-size: 32px;
  font-weight: 900;
  color: var(--text-primary);
  letter-spacing: -0.5px;
}

/* ---- Auth Card ---- */
.auth-card {
  position: relative;
  width: 100%;
  max-width: 420px;
  background: var(--glass);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-lg);
  padding: 40px 36px;
  backdrop-filter: blur(24px);
  box-shadow: 0 25px 80px rgba(0,0,0,0.5), 0 0 0 1px rgba(255,255,255,0.03);
  overflow: hidden;
}

.auth-card-glow {
  position: absolute;
  top: -60px;
  right: -60px;
  width: 180px;
  height: 180px;
  background: radial-gradient(circle, var(--kibi-coral-glow) 0%, transparent 70%);
  pointer-events: none;
}

.auth-header {
  text-align: center;
  margin-bottom: 32px;
}

.auth-header h1 {
  font-family: 'Outfit', sans-serif;
  font-size: 26px;
  font-weight: 800;
  color: var(--text-primary);
  margin-bottom: 8px;
}

.auth-header p {
  font-size: 15px;
  color: var(--text-secondary);
}

/* ---- Form Fields ---- */
.field-group {
  margin-bottom: 20px;
  position: relative;
}

label {
  display: block;
  font-size: 13px;
  font-weight: 600;
  color: var(--text-secondary);
  margin-bottom: 8px;
  letter-spacing: 0.3px;
}

input {
  width: 100%;
  padding: 16px;
  background: rgba(255,255,255,0.04);
  border: 1px solid var(--space-border);
  border-radius: 14px;
  color: var(--text-primary);
  font-family: 'Outfit', sans-serif;
  font-size: 18px;
  font-weight: 700;
  letter-spacing: 2px;
  text-align: center;
  text-transform: lowercase;
  transition: all 0.3s;
  outline: none;
}

input::placeholder {
  color: var(--text-muted);
  font-weight: 400;
  letter-spacing: normal;
  text-transform: none;
}

input:focus {
  border-color: var(--kibi-coral);
  background: rgba(255,68,102,0.04);
  box-shadow: 0 0 0 3px rgba(255,68,102,0.1);
}

input.error {
  border-color: var(--error);
  background: rgba(255,68,102,0.06);
}

/* PIN input specific styling */
.pin-wrap {
  position: relative;
}

.pin-wrap input {
  font-size: 28px;
  letter-spacing: 12px;
  padding: 16px 48px 16px 16px;
  text-transform: none;
}

.toggle-pin {
  position: absolute;
  right: 14px;
  top: 50%;
  transform: translateY(-50%);
  background: none;
  border: none;
  color: var(--text-muted);
  font-size: 20px;
  cursor: pointer;
  padding: 4px;
  opacity: 0.6;
  transition: opacity 0.2s;
}

.toggle-pin:hover { opacity: 1; }

.field-hint {
  display: block;
  font-size: 12px;
  color: var(--text-muted);
  margin-top: 8px;
}

.field-error {
  display: block;
  font-size: 13px;
  color: var(--error);
  margin-top: 8px;
  min-height: 18px;
  font-weight: 600;
}

/* ---- Submit Button ---- */
.btn-submit {
  width: 100%;
  padding: 18px;
  background: linear-gradient(135deg, var(--kibi-coral), #E85A28);
  color: white;
  border: none;
  border-radius: 50px;
  font-family: 'Outfit', sans-serif;
  font-size: 18px;
  font-weight: 800;
  cursor: pointer;
  transition: all 0.35s cubic-bezier(0.4,0,0.2,1);
  box-shadow: 0 4px 20px var(--kibi-coral-glow), inset 0 1px 0 rgba(255,255,255,0.2);
  margin-top: 12px;
  position: relative;
  overflow: hidden;
}

.btn-submit:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 30px var(--kibi-coral-glow), inset 0 1px 0 rgba(255,255,255,0.3);
}

.btn-submit:active { transform: translateY(0); }

.btn-submit:disabled {
  opacity: 0.6;
  cursor: not-allowed;
  transform: none;
}

/* ---- Footer Links ---- */
.auth-footer {
  text-align: center;
  margin-top: 24px;
  font-size: 14px;
  color: var(--text-secondary);
}

.auth-footer p { margin-bottom: 4px; }

.link-btn {
  background: none;
  border: none;
  color: var(--kibi-coral);
  font-family: 'Inter', sans-serif;
  font-size: 14px;
  font-weight: 600;
  cursor: pointer;
  transition: color 0.3s;
  text-decoration: none;
}

.link-btn:hover { color: var(--text-primary); text-decoration: underline; }

/* ---- Trust Row ---- */
.trust-row {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 12px;
  margin-top: 28px;
  padding-top: 24px;
  border-top: 1px solid var(--space-border);
  font-size: 12px;
  color: var(--text-muted);
}

/* ---- Back Link ---- */
.back-link {
  margin-top: 24px;
  color: var(--text-muted);
  text-decoration: none;
  font-size: 14px;
  font-weight: 500;
  transition: color 0.3s;
}

.back-link:hover { color: var(--text-primary); }

/* ---- Responsive ---- */
@media (max-width: 480px) {
  .auth-card { padding: 32px 24px; border-radius: var(--radius); }
  .auth-header h1 { font-size: 22px; }
  input { font-size: 16px; padding: 14px; }
  .pin-wrap input { font-size: 24px; letter-spacing: 10px; }
  .btn-submit { font-size: 16px; padding: 16px; }
  .toast-container { left: 16px; right: 16px; max-width: none; top: 16px; }
}