/* ============================================================
   AgriSmart — Hoja de estilos global
   Paleta: verde campo, blanco limpio, acentos tierra
   ============================================================ */

@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700&family=Poppins:wght@600;700&display=swap');

:root {
  --verde-oscuro:   #1B4332;
  --verde-medio:    #2D6A4F;
  --verde-claro:    #40916C;
  --verde-suave:    #74C69D;
  --verde-palido:   #D8F3DC;
  --tierra:         #8B5E3C;
  --tierra-claro:   #F4A261;
  --blanco:         #FFFFFF;
  --gris-claro:     #F8F9FA;
  --gris-medio:     #E9ECEF;
  --gris-texto:     #6C757D;
  --texto-oscuro:   #1A1A2E;
  --alerta-roja:    #D62828;
  --alerta-amarilla:#F4A261;
  --sombra:         0 4px 20px rgba(27,67,50,0.10);
  --sombra-hover:   0 8px 30px rgba(27,67,50,0.18);
  --radio:          12px;
  --radio-sm:       8px;
  --transicion:     all 0.25s ease;
}

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

html {
  overflow-x: hidden;
}

body {
  font-family: 'Inter', sans-serif;
  background: var(--gris-claro);
  color: var(--texto-oscuro);
  min-height: 100vh;
  overflow-x: hidden;
}

h1, h2, h3 { font-family: 'Poppins', sans-serif; }

img, svg, video, canvas {
  max-width: 100%;
}

/* ── NAVBAR ── */
.app-navbar {
  background: var(--verde-oscuro);
  padding: 0 2rem;
  gap: 1rem;
  height: 64px;
  position: sticky;
  top: 0;
  z-index: 100;
  box-shadow: 0 2px 12px rgba(0,0,0,0.2);
}

.app-navbar .navbar-brand {
  display: flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
  margin-right: 1rem;
}

.app-navbar .navbar-brand .logo-icon {
  width: 36px; height: 36px;
  background: var(--verde-suave);
  border-radius: 8px;
  display: flex; align-items: center; justify-content: center;
  font-size: 1.2rem;
}

.app-navbar .navbar-brand span {
  color: var(--blanco);
  font-family: 'Poppins', sans-serif;
  font-size: 1.2rem;
  font-weight: 700;
  letter-spacing: 0.5px;
}

.app-navbar .navbar-brand span em {
  color: var(--verde-suave);
  font-style: normal;
}

.app-navbar .navbar-collapse {
  min-width: 0;
}

.navbar-links {
  display: flex;
  gap: 0.25rem;
  list-style: none;
  min-width: 0;
  margin: 0;
}

.navbar-links a {
  color: rgba(255,255,255,0.75);
  text-decoration: none;
  padding: 0.5rem 1rem;
  border-radius: var(--radio-sm);
  font-size: 0.9rem;
  font-weight: 500;
  transition: var(--transicion);
  display: flex;
  align-items: center;
  gap: 6px;
}

.navbar-links .nav-link {
  color: rgba(255,255,255,0.75);
}

.navbar-links a:hover,
.navbar-links a.active {
  background: rgba(255,255,255,0.12);
  color: var(--blanco);
}

.navbar-links .nav-link:focus {
  color: var(--blanco);
}

.app-navbar .navbar-toggler {
  border-color: rgba(255,255,255,0.3);
  box-shadow: none;
}

.navbar-user {
  display: flex;
  align-items: center;
  min-width: 0;
  flex-shrink: 0;
  position: relative;
}

.navbar-user-toggle {
  display: flex;
  align-items: center;
  gap: 10px;
  max-width: 230px;
  border: 0;
  border-radius: var(--radio-sm);
  background: transparent;
  color: var(--blanco);
  font-family: 'Inter', sans-serif;
  font-size: 0.88rem;
  font-weight: 600;
  padding: 0.35rem 0.5rem;
  transition: var(--transicion);
}

.navbar-user-toggle:hover,
.navbar-user-toggle:focus {
  background: rgba(255,255,255,0.12);
  color: var(--blanco);
  outline: none;
}

.navbar-user-toggle span {
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.navbar-user .dropdown-menu {
  border: 0;
  border-radius: var(--radio-sm);
  box-shadow: var(--sombra-hover);
  min-width: 190px;
  padding: 0.35rem;
}

.navbar-user .dropdown-item {
  border-radius: 6px;
  color: var(--texto-oscuro);
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.88rem;
  font-weight: 600;
  padding: 0.6rem 0.75rem;
}

.navbar-user .dropdown-item:hover,
.navbar-user .dropdown-item:focus {
  background: var(--verde-palido);
  color: var(--verde-oscuro);
}

.dropdown-icon {
  font-size: 1rem;
}

.avatar {
  width: 36px; height: 36px;
  background: var(--verde-claro);
  border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  font-weight: 700;
  font-size: 0.85rem;
  color: var(--blanco);
}

/* ── LAYOUT PRINCIPAL ── */
.main-layout {
  display: flex;
  min-height: calc(100vh - 64px);
  min-width: 0;
}

.sidebar {
  width: 240px;
  background: var(--blanco);
  border-right: 1px solid var(--gris-medio);
  padding: 1.5rem 1rem;
  flex-shrink: 0;
}

.sidebar-section-title {
  font-size: 0.7rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 1px;
  color: var(--gris-texto);
  padding: 0 0.75rem;
  margin: 1rem 0 0.5rem;
}

.sidebar-menu { list-style: none; }

.sidebar-menu a {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 0.65rem 0.75rem;
  border-radius: var(--radio-sm);
  color: var(--gris-texto);
  text-decoration: none;
  font-size: 0.9rem;
  font-weight: 500;
  transition: var(--transicion);
  margin-bottom: 2px;
}

.sidebar-menu a:hover {
  background: var(--verde-palido);
  color: var(--verde-oscuro);
}

.sidebar-menu a.active {
  background: var(--verde-palido);
  color: var(--verde-oscuro);
  font-weight: 600;
}

.sidebar-menu .icon { font-size: 1.1rem; }

/* ── CONTENIDO ── */
.content {
  flex: 1;
  padding: 2rem;
  overflow-y: auto;
  min-width: 0;
}

.page-header {
  margin-bottom: 1.75rem;
  min-width: 0;
}

.page-header h1 {
  font-size: 1.6rem;
  color: var(--verde-oscuro);
  font-weight: 700;
}

.page-header p {
  color: var(--gris-texto);
  font-size: 0.92rem;
  margin-top: 4px;
}

/* ── TARJETAS KPI ── */
.kpi-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 1.25rem;
  margin-bottom: 2rem;
}

.kpi-card {
  background: var(--blanco);
  border-radius: var(--radio);
  padding: 1.25rem 1.5rem;
  box-shadow: var(--sombra);
  border-left: 4px solid var(--verde-claro);
  transition: var(--transicion);
}

.kpi-card:hover { transform: translateY(-3px); box-shadow: var(--sombra-hover); }
.kpi-card.alerta { border-left-color: var(--alerta-roja); }
.kpi-card.advertencia { border-left-color: var(--alerta-amarilla); }

.kpi-label {
  font-size: 0.78rem;
  text-transform: uppercase;
  letter-spacing: 0.8px;
  color: var(--gris-texto);
  font-weight: 600;
  margin-bottom: 0.5rem;
}

.kpi-value {
  font-family: 'Poppins', sans-serif;
  font-size: 2rem;
  font-weight: 700;
  color: var(--verde-oscuro);
  line-height: 1;
}

.kpi-sub {
  font-size: 0.8rem;
  color: var(--gris-texto);
  margin-top: 4px;
}

/* ── CARDS GENERALES ── */
.card {
  background: var(--blanco);
  border-radius: var(--radio);
  box-shadow: var(--sombra);
  padding: 1.5rem;
  margin-bottom: 1.5rem;
}

.card-title {
  font-size: 1rem;
  font-weight: 700;
  color: var(--verde-oscuro);
  margin-bottom: 1rem;
  display: flex;
  align-items: center;
  gap: 8px;
}

/* ── TABLA ── */
.table-wrap {
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
}

table {
  width: 100%;
  min-width: 680px;
  border-collapse: collapse;
  font-size: 0.88rem;
}

thead th {
  background: var(--verde-oscuro);
  color: var(--blanco);
  padding: 0.75rem 1rem;
  text-align: left;
  font-weight: 600;
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

thead th:first-child { border-radius: 8px 0 0 0; }
thead th:last-child  { border-radius: 0 8px 0 0; }

tbody tr { border-bottom: 1px solid var(--gris-medio); transition: var(--transicion); }
tbody tr:hover { background: var(--verde-palido); }
tbody td { padding: 0.75rem 1rem; color: var(--texto-oscuro); }

/* ── BADGES ── */
.badge {
  display: inline-block;
  padding: 3px 10px;
  border-radius: 20px;
  font-size: 0.75rem;
  font-weight: 600;
}

.badge-verde  { background: var(--verde-palido); color: var(--verde-oscuro); }
.badge-rojo   { background: #FFE5E5; color: var(--alerta-roja); }
.badge-amarillo { background: #FFF3E0; color: #E65100; }
.badge-gris   { background: var(--gris-medio); color: var(--gris-texto); }

/* ── BOTONES ── */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  padding: 0.6rem 1.25rem;
  border-radius: var(--radio-sm);
  font-size: 0.88rem;
  font-weight: 600;
  cursor: pointer;
  border: none;
  transition: var(--transicion);
  text-decoration: none;
}

.btn-primary {
  background: var(--verde-claro);
  color: var(--blanco);
}
.btn-primary:hover { background: var(--verde-medio); transform: translateY(-1px); }

.btn-outline {
  background: transparent;
  border: 2px solid var(--verde-claro);
  color: var(--verde-claro);
}
.btn-outline:hover { background: var(--verde-palido); }

.btn-danger {
  background: var(--alerta-roja);
  color: var(--blanco);
}

/* ── FORMULARIOS ── */
.form-group { margin-bottom: 1.25rem; }

.form-label {
  display: block;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--verde-oscuro);
  margin-bottom: 0.4rem;
}

.form-control {
  width: 100%;
  min-width: 0;
  padding: 0.65rem 1rem;
  border: 2px solid var(--gris-medio);
  border-radius: var(--radio-sm);
  font-size: 0.9rem;
  font-family: 'Inter', sans-serif;
  color: var(--texto-oscuro);
  transition: var(--transicion);
  background: var(--blanco);
}

.form-control:focus {
  outline: none;
  border-color: var(--verde-claro);
  box-shadow: 0 0 0 3px rgba(64,145,108,0.15);
}

select.form-control { cursor: pointer; }

/* ── ALERTAS ── */
.alert-item {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  padding: 1rem;
  border-radius: var(--radio-sm);
  margin-bottom: 0.75rem;
  border-left: 4px solid;
}

.alert-item.rojo  { background: #FFF5F5; border-color: var(--alerta-roja); }
.alert-item.amarillo { background: #FFFBF0; border-color: var(--alerta-amarilla); }
.alert-item.verde { background: var(--verde-palido); border-color: var(--verde-claro); }

.alert-icon { font-size: 1.3rem; flex-shrink: 0; margin-top: 2px; }
.alert-title { font-weight: 600; font-size: 0.9rem; margin-bottom: 2px; }
.alert-desc  { font-size: 0.82rem; color: var(--gris-texto); }
.alert-time  { font-size: 0.75rem; color: var(--gris-texto); margin-top: 4px; }

/* ── SENSOR GAUGE ── */
.sensor-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
  gap: 1rem;
  margin-bottom: 1.5rem;
}

.sensor-card {
  background: var(--blanco);
  border-radius: var(--radio);
  padding: 1.25rem;
  box-shadow: var(--sombra);
  text-align: center;
  border-top: 4px solid var(--verde-suave);
  transition: var(--transicion);
}

.sensor-card:hover { transform: translateY(-3px); box-shadow: var(--sombra-hover); }
.sensor-card.critico { border-top-color: var(--alerta-roja); }
.sensor-card.advertencia { border-top-color: var(--alerta-amarilla); }

.sensor-icon { font-size: 2rem; margin-bottom: 0.5rem; }
.sensor-nombre { font-size: 0.78rem; font-weight: 600; text-transform: uppercase; letter-spacing: 0.5px; color: var(--gris-texto); margin-bottom: 0.25rem; }
.sensor-valor  { font-family: 'Poppins', sans-serif; font-size: 1.8rem; font-weight: 700; color: var(--verde-oscuro); }
.sensor-unidad { font-size: 0.75rem; color: var(--gris-texto); }
.sensor-estado { display: inline-block; margin-top: 0.5rem; }

/* ── PROGRESS BAR ── */
.progress-bar-wrap { background: var(--gris-medio); border-radius: 20px; height: 8px; margin-top: 0.5rem; }
.progress-bar { height: 8px; border-radius: 20px; background: var(--verde-claro); transition: width 0.5s ease; }
.progress-bar.critico { background: var(--alerta-roja); }
.progress-bar.advertencia { background: var(--alerta-amarilla); }

/* ── AUTH PAGES ── */
.auth-page {
  min-height: 100vh;
  display: grid;
  grid-template-columns: 1fr 1fr;
}

.auth-left {
  background: linear-gradient(160deg, var(--verde-oscuro) 0%, var(--verde-medio) 60%, var(--verde-claro) 100%);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 3rem;
  position: relative;
  overflow: hidden;
}

.auth-left::before {
  content: '';
  position: absolute;
  width: 400px; height: 400px;
  background: rgba(255,255,255,0.05);
  border-radius: 50%;
  top: -100px; right: -100px;
}

.auth-left::after {
  content: '';
  position: absolute;
  width: 300px; height: 300px;
  background: rgba(255,255,255,0.04);
  border-radius: 50%;
  bottom: -80px; left: -80px;
}

.auth-brand {
  display: flex;
  align-items: center;
  gap: 14px;
  margin-bottom: 3rem;
  z-index: 1;
}

.auth-brand .logo-big {
  width: 56px; height: 56px;
  background: rgba(255,255,255,0.15);
  border-radius: 14px;
  display: flex; align-items: center; justify-content: center;
  font-size: 1.8rem;
  backdrop-filter: blur(4px);
}

.auth-brand h1 {
  color: var(--blanco);
  font-size: 1.8rem;
  font-weight: 700;
}

.auth-brand h1 em {
  color: var(--verde-suave);
  font-style: normal;
}

.auth-tagline {
  color: rgba(255,255,255,0.85);
  font-size: 1.05rem;
  line-height: 1.6;
  text-align: center;
  max-width: 340px;
  z-index: 1;
}

.auth-features {
  margin-top: 2.5rem;
  display: flex;
  flex-direction: column;
  gap: 1rem;
  z-index: 1;
}

.auth-feature {
  display: flex;
  align-items: center;
  gap: 12px;
  color: rgba(255,255,255,0.8);
  font-size: 0.88rem;
}

.auth-feature .feat-icon {
  width: 36px; height: 36px;
  background: rgba(255,255,255,0.12);
  border-radius: 8px;
  display: flex; align-items: center; justify-content: center;
  font-size: 1rem;
  flex-shrink: 0;
}

.auth-right {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 3rem;
  background: var(--gris-claro);
  min-width: 0;
}

.auth-form-box {
  width: 100%;
  max-width: 420px;
}

.auth-form-box h2 {
  font-size: 1.6rem;
  color: var(--verde-oscuro);
  margin-bottom: 0.4rem;
}

.auth-form-box .subtitle {
  color: var(--gris-texto);
  font-size: 0.9rem;
  margin-bottom: 2rem;
}

.auth-link {
  text-align: center;
  margin-top: 1.5rem;
  font-size: 0.88rem;
  color: var(--gris-texto);
}

.auth-link a {
  color: var(--verde-claro);
  font-weight: 600;
  text-decoration: none;
}

/* ── RESPONSIVE ── */
@media (max-width: 1100px) {
  .app-navbar {
    padding: 0 1rem;
  }

  .navbar-links a {
    padding: 0.5rem 0.75rem;
  }

  .sidebar {
    width: 220px;
  }
}

@media (max-width: 991.98px) {
  .app-navbar {
    height: auto;
    min-height: 64px;
    padding: 0.75rem 1rem;
  }

  .app-navbar .navbar-collapse {
    width: 100%;
    padding-top: 0.75rem;
  }

  .navbar-links {
    width: 100%;
    gap: 0.35rem;
  }

  .navbar-links a {
    width: 100%;
    padding: 0.65rem 0.75rem;
  }

  .navbar-user {
    margin-top: 0.75rem;
    padding-top: 0.75rem;
    border-top: 1px solid rgba(255,255,255,0.16);
    width: 100%;
  }

  .navbar-user-toggle {
    width: 100%;
    max-width: none;
    justify-content: flex-start;
  }

  .navbar-user .dropdown-menu {
    position: static;
    margin-top: 0.5rem;
    width: 100%;
  }

  .main-layout {
    min-height: calc(100vh - 112px);
  }
}

@media (max-width: 768px) {
  .auth-page { grid-template-columns: 1fr; }
  .auth-left { display: none; }
  .main-layout { flex-direction: column; }
  .sidebar {
    display: none;
  }
  .content {
    padding: 1.25rem;
  }
  .page-header {
    gap: 1rem;
  }
  .page-header[style] {
    flex-direction: column;
  }
  .page-header .btn,
  .page-header form,
  .page-header form .btn {
    width: 100%;
  }
  .kpi-grid { grid-template-columns: repeat(2, 1fr); }
  .card {
    padding: 1.25rem;
  }
  .modal {
    padding: 1.5rem;
  }
  .modal-footer {
    flex-direction: column-reverse;
  }
  .modal-footer .btn {
    width: 100%;
  }
}

@media (max-width: 560px) {
  .app-navbar {
    align-items: flex-start;
  }

  .app-navbar .navbar-brand span {
    font-size: 1.05rem;
  }

  .navbar-user-toggle span {
    display: inline;
  }

  .content {
    padding: 1rem;
  }

  .page-header h1 {
    font-size: 1.35rem;
    line-height: 1.25;
  }

  .page-header p {
    font-size: 0.88rem;
  }

  .kpi-grid,
  .sensor-grid {
    grid-template-columns: 1fr;
    gap: 1rem;
  }

  .kpi-card,
  .sensor-card,
  .card {
    border-radius: var(--radio-sm);
  }

  .kpi-card {
    padding: 1rem;
  }

  .kpi-value {
    font-size: 1.65rem;
  }

  .btn {
    width: 100%;
    min-height: 42px;
  }

  .alert-item {
    padding: 0.85rem;
  }

  .auth-right {
    align-items: flex-start;
    padding: 2rem 1rem;
  }
}

@media (max-width: 420px) {
  .content {
    padding: 0.85rem;
  }

  .card {
    padding: 1rem;
  }

  .app-navbar,
  .sidebar {
    padding-left: 0.75rem;
    padding-right: 0.75rem;
  }

  .badge {
    max-width: 100%;
    white-space: normal;
  }
}