/* ============================================================
   N&S MINA D'ÁGUA - TELA DE LOGIN PREMIUM
   Glassmorphism, gradientes dinâmicos e tipografia moderna
   ============================================================ */

:root {
  --primary: #0076a8;
  --primary-hover: #005a80;
  --primary-glow: rgba(0, 118, 168, 0.35);
  
  --bg-gradient-1: #061129;
  --bg-gradient-2: #0b1f4d;
  --bg-gradient-3: #004c70;
  
  --card-bg: rgba(255, 255, 255, 0.94);
  --card-border: rgba(255, 255, 255, 0.6);
  --card-shadow: 0 30px 70px rgba(0, 10, 30, 0.45), 0 0 0 1px rgba(255, 255, 255, 0.2);
  
  --text-main: #0f172a;
  --text-muted: #64748b;
  --input-bg: #f8fafc;
  --input-border: #cbd5e1;
  --input-focus: #0076a8;
  
  --danger-bg: #fef2f2;
  --danger-border: #fecaca;
  --danger-text: #b91c1c;

  --radius-card: 24px;
  --radius-input: 14px;
  --radius-btn: 14px;

  --transition-fast: 0.2s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-smooth: 0.35s cubic-bezier(0.16, 1, 0.3, 1);
}

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

body {
  font-family: 'Outfit', 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  background: radial-gradient(circle at top right, var(--bg-gradient-3), transparent 60%),
              linear-gradient(135deg, var(--bg-gradient-1) 0%, var(--bg-gradient-2) 55%, #022038 100%);
  background-attachment: fixed;
  color: var(--text-main);
  padding: 24px 16px;
  overflow-x: hidden;
  position: relative;
}

/* Formas decorativas orgânicas com blur no fundo */
.login-bg-shapes {
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 0;
  overflow: hidden;
}

.shape {
  position: absolute;
  border-radius: 50%;
  filter: blur(90px);
  opacity: 0.4;
  animation: pulseFloat 18s ease-in-out infinite alternate;
}

.shape-1 {
  width: 550px;
  height: 550px;
  background: radial-gradient(circle, #0ea5e9, #0076a8 60%, transparent 80%);
  top: -160px;
  right: -120px;
}

.shape-2 {
  width: 450px;
  height: 450px;
  background: radial-gradient(circle, #06b6d4, #0284c7 60%, transparent 80%);
  bottom: -140px;
  left: -100px;
  animation-delay: -7s;
}

.shape-3 {
  width: 320px;
  height: 320px;
  background: radial-gradient(circle, #38bdf8, transparent 75%);
  top: 40%;
  left: 30%;
  opacity: 0.25;
  animation-delay: -12s;
}

@keyframes pulseFloat {
  0% { transform: translate(0, 0) scale(1); }
  50% { transform: translate(-40px, 30px) scale(1.08); }
  100% { transform: translate(30px, -40px) scale(0.95); }
}

/* Container e Card Central */
.login-container {
  width: 100%;
  max-width: 440px;
  position: relative;
  z-index: 10;
  perspective: 1000px;
}

.login-card {
  background: var(--card-bg);
  backdrop-filter: blur(24px);
  -webkit-backdrop-filter: blur(24px);
  border: 1px solid var(--card-border);
  border-radius: var(--radius-card);
  box-shadow: var(--card-shadow);
  padding: 42px 36px 36px 36px;
  display: flex;
  flex-direction: column;
  animation: cardFadeUp 0.65s cubic-bezier(0.16, 1, 0.3, 1) forwards;
}

@keyframes cardFadeUp {
  from {
    opacity: 0;
    transform: translateY(24px) scale(0.98);
  }
  to {
    opacity: 1;
    transform: translateY(0) scale(1);
  }
}

/* Cabeçalho */
.login-header {
  text-align: center;
  margin-bottom: 28px;
}

.login-logo-wrapper {
  margin-bottom: 16px;
  display: flex;
  justify-content: center;
  align-items: center;
}

.login-logo {
  max-width: 160px;
  height: auto;
  object-fit: contain;
  filter: drop-shadow(0 4px 12px rgba(0, 118, 168, 0.2));
}

.logo-fallback {
  display: none;
}

.login-logo[style*="display: none"] + .logo-fallback {
  display: inline-flex;
}

.brand-badge {
  background: linear-gradient(135deg, #0076a8, #004c70);
  color: #fff;
  font-weight: 800;
  font-size: 24px;
  padding: 10px 22px;
  border-radius: 14px;
  box-shadow: 0 8px 20px var(--primary-glow);
  letter-spacing: 1px;
}

.login-title {
  font-size: 26px;
  font-weight: 700;
  color: var(--text-main);
  letter-spacing: -0.5px;
  margin-bottom: 6px;
}

.login-subtitle {
  font-size: 14px;
  color: var(--text-muted);
  line-height: 1.45;
}

/* Formulário */
.login-form {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.input-group {
  display: flex;
  flex-direction: column;
  gap: 7px;
}

.input-group label {
  font-size: 13px;
  font-weight: 600;
  color: #334155;
  letter-spacing: 0.2px;
}

.input-wrapper {
  position: relative;
  display: flex;
  align-items: center;
}

.input-icon {
  position: absolute;
  left: 14px;
  width: 19px;
  height: 19px;
  color: #94a3b8;
  pointer-events: none;
  transition: color var(--transition-fast);
}

.input-wrapper input {
  width: 100%;
  height: 48px;
  padding: 0 44px 0 44px;
  background: var(--input-bg);
  border: 1.5px solid var(--input-border);
  border-radius: var(--radius-input);
  font-size: 15px;
  color: var(--text-main);
  font-family: inherit;
  transition: all var(--transition-fast);
}

.input-wrapper input:focus {
  outline: none;
  background: #ffffff;
  border-color: var(--input-focus);
  box-shadow: 0 0 0 4px rgba(0, 118, 168, 0.14);
}

.input-wrapper input:focus + .input-icon,
.input-wrapper input:focus ~ .input-icon {
  color: var(--primary);
}

.input-wrapper input::placeholder {
  color: #94a3b8;
}

/* Botão mostrar senha */
.btn-toggle-password {
  position: absolute;
  right: 12px;
  background: transparent;
  border: none;
  width: 32px;
  height: 32px;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  color: #94a3b8;
  border-radius: 8px;
  transition: all var(--transition-fast);
}

.btn-toggle-password:hover {
  color: var(--primary);
  background: rgba(0, 118, 168, 0.08);
}

.btn-toggle-password svg {
  width: 18px;
  height: 18px;
}

/* Mensagens de Feedback e Erro */
.login-feedback {
  background: var(--danger-bg);
  border: 1px solid var(--danger-border);
  color: var(--danger-text);
  padding: 12px 14px;
  border-radius: 12px;
  font-size: 13.5px;
  font-weight: 500;
  display: flex;
  align-items: center;
  gap: 8px;
  animation: shakeIn 0.35s cubic-bezier(0.36, 0.07, 0.19, 0.97);
}

@keyframes shakeIn {
  0%, 100% { transform: translateX(0); }
  20%, 60% { transform: translateX(-4px); }
  40%, 80% { transform: translateX(4px); }
}

/* Botão de envio */
.btn-submit {
  width: 100%;
  height: 50px;
  background: linear-gradient(135deg, var(--primary) 0%, #005a80 100%);
  color: #ffffff;
  border: none;
  border-radius: var(--radius-btn);
  font-size: 16px;
  font-weight: 600;
  font-family: inherit;
  cursor: pointer;
  box-shadow: 0 10px 24px var(--primary-glow);
  transition: all var(--transition-fast);
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  overflow: hidden;
  margin-top: 6px;
}

.btn-submit:hover:not(:disabled) {
  transform: translateY(-2px);
  box-shadow: 0 14px 28px rgba(0, 118, 168, 0.45);
  background: linear-gradient(135deg, #028ac2 0%, #005a80 100%);
}

.btn-submit:active:not(:disabled) {
  transform: translateY(0);
}

.btn-submit:disabled {
  opacity: 0.75;
  cursor: not-allowed;
}

/* Spinner de carregamento */
.btn-spinner {
  width: 20px;
  height: 20px;
  border: 2.5px solid rgba(255, 255, 255, 0.35);
  border-top-color: #ffffff;
  border-radius: 50%;
  animation: spin 0.75s linear infinite;
}

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

/* Rodapé */
.login-footer {
  margin-top: 30px;
  padding-top: 20px;
  border-top: 1px solid #e2e8f0;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 10px;
}

.footer-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 12px;
  font-weight: 600;
  color: #059669;
  background: #ecfdf5;
  padding: 4px 12px;
  border-radius: 20px;
  border: 1px solid #a7f3d0;
}

.copyright {
  font-size: 12px;
  color: #94a3b8;
}

.hidden {
  display: none !important;
}

/* Responsividade */
@media (max-width: 480px) {
  .login-card {
    padding: 32px 24px;
    border-radius: 20px;
  }
  .login-title {
    font-size: 23px;
  }
}