/* ═══════════════════════════════════════════════════════════
   IRRIGATECH — Design System
   Fonte: DM Sans (corpo) + Space Grotesk (display/headings)
   Paleta: Azul técnico deep navy + ciano accent
   ═══════════════════════════════════════════════════════════ */

@import url('https://fonts.googleapis.com/css2?family=DM+Sans:ital,opsz,wght@0,9..40,300;0,9..40,400;0,9..40,500;0,9..40,600;0,9..40,700;1,9..40,400&family=Space+Grotesk:wght@400;500;600;700&display=swap');

/* ── Tokens ─────────────────────────────────────────────── */
:root {
  /* Blues */
  --navy-950: #060d1a;
  --navy-900: #0a1628;
  --navy-800: #0f2040;
  --navy-700: #163058;
  --navy-600: #1e4080;
  --navy-500: #2563eb;
  --navy-400: #3b82f6;
  --navy-300: #60a5fa;
  --navy-200: #93c5fd;
  --navy-100: #dbeafe;

  /* Accent ciano */
  --cyan-500: #06b6d4;
  --cyan-400: #22d3ee;
  --cyan-300: #67e8f9;

  /* Neutros */
  --gray-950: #030712;
  --gray-900: #111827;
  --gray-800: #1f2937;
  --gray-700: #374151;
  --gray-600: #4b5563;
  --gray-500: #6b7280;
  --gray-400: #9ca3af;
  --gray-300: #d1d5db;
  --gray-200: #e5e7eb;
  --gray-100: #f3f4f6;
  --gray-50:  #f9fafb;

  /* Status */
  --green-500: #22c55e;
  --green-400: #4ade80;
  --red-500:   #ef4444;
  --amber-400: #fbbf24;

  /* Tipografia */
  --font-body:    'DM Sans', sans-serif;
  --font-display: 'Space Grotesk', sans-serif;

  /* Sombras */
  --shadow-sm:  0 1px 3px rgba(0,0,0,.3), 0 1px 2px rgba(0,0,0,.2);
  --shadow-md:  0 4px 16px rgba(0,0,0,.4);
  --shadow-lg:  0 10px 40px rgba(0,0,0,.5);
  --shadow-glow: 0 0 30px rgba(37,99,235,.25);

  /* Raios */
  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 16px;
  --radius-xl: 24px;

  /* Transições */
  --ease: cubic-bezier(.4,0,.2,1);
}

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

html { scroll-behavior: smooth; -webkit-font-smoothing: antialiased; }

body {
  font-family: var(--font-body);
  background: var(--navy-950);
  color: var(--gray-200);
  min-height: 100vh;
  line-height: 1.6;
}

a { color: var(--navy-400); text-decoration: none; }
a:hover { color: var(--cyan-400); }

img, svg { display: block; max-width: 100%; }

/* ── Botões ─────────────────────────────────────────────── */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 14px;
  letter-spacing: .01em;
  border: none;
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: all .2s var(--ease);
  white-space: nowrap;
}
.btn:focus-visible { outline: 2px solid var(--navy-400); outline-offset: 3px; }
.btn:disabled { opacity: .45; cursor: not-allowed; }

.btn-primary {
  background: var(--navy-500);
  color: #fff;
  padding: 11px 22px;
  box-shadow: 0 2px 8px rgba(37,99,235,.35);
}
.btn-primary:hover:not(:disabled) {
  background: var(--navy-400);
  transform: translateY(-1px);
  box-shadow: 0 4px 16px rgba(37,99,235,.5);
}

.btn-secondary {
  background: transparent;
  color: var(--gray-300);
  border: 1px solid var(--gray-700);
  padding: 10px 20px;
}
.btn-secondary:hover:not(:disabled) {
  border-color: var(--navy-400);
  color: var(--navy-300);
  background: rgba(37,99,235,.08);
}

.btn-ghost {
  background: transparent;
  color: var(--gray-400);
  padding: 8px 14px;
  border-radius: var(--radius-sm);
}
.btn-ghost:hover { background: var(--gray-800); color: var(--gray-200); }

.btn-danger {
  background: rgba(239,68,68,.15);
  color: var(--red-500);
  border: 1px solid rgba(239,68,68,.3);
  padding: 8px 14px;
}
.btn-danger:hover { background: rgba(239,68,68,.25); }

.btn-lg { padding: 14px 28px; font-size: 15px; }
.btn-sm { padding: 7px 14px; font-size: 13px; }
.btn-icon { width: 36px; height: 36px; padding: 0; border-radius: var(--radius-sm); }

/* ── Cards ──────────────────────────────────────────────── */
.card {
  background: var(--navy-900);
  border: 1px solid var(--navy-800);
  border-radius: var(--radius-lg);
  padding: 24px;
}
.card-sm { padding: 16px; border-radius: var(--radius-md); }

/* ── Formulários ────────────────────────────────────────── */
.form-group { display: flex; flex-direction: column; gap: 6px; }

.form-label {
  font-size: 12px;
  font-weight: 600;
  letter-spacing: .05em;
  text-transform: uppercase;
  color: var(--gray-400);
}

.form-input {
  width: 100%;
  padding: 10px 14px;
  background: var(--navy-800);
  border: 1px solid var(--navy-700);
  border-radius: var(--radius-md);
  color: var(--gray-100);
  font-family: var(--font-body);
  font-size: 14px;
  transition: border-color .2s var(--ease), box-shadow .2s var(--ease);
  -webkit-appearance: none;
}
.form-input::placeholder { color: var(--gray-600); }
.form-input:focus {
  outline: none;
  border-color: var(--navy-400);
  box-shadow: 0 0 0 3px rgba(59,130,246,.15);
}
.form-input:read-only {
  opacity: .6;
  cursor: default;
}

.form-input[type="range"] {
  padding: 4px 0;
  background: transparent;
  border: none;
  box-shadow: none;
  accent-color: var(--navy-400);
  cursor: pointer;
}
.form-input[type="range"]:focus { box-shadow: none; }

/* ── Badges / Chips ─────────────────────────────────────── */
.badge {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  font-size: 11px;
  font-weight: 600;
  padding: 3px 9px;
  border-radius: 99px;
  letter-spacing: .04em;
}
.badge-blue   { background: rgba(37,99,235,.2);  color: var(--navy-300); }
.badge-green  { background: rgba(34,197,94,.15); color: var(--green-400); }
.badge-red    { background: rgba(239,68,68,.15); color: #f87171; }
.badge-amber  { background: rgba(251,191,36,.15); color: var(--amber-400); }
.badge-gray   { background: var(--gray-800); color: var(--gray-400); }

/* ── Nav ────────────────────────────────────────────────── */
.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 32px;
  height: 60px;
  background: rgba(10,22,40,.9);
  border-bottom: 1px solid var(--navy-800);
  backdrop-filter: blur(12px);
  position: sticky;
  top: 0;
  z-index: 100;
}
.nav-logo {
  font-family: var(--font-display);
  font-size: 18px;
  font-weight: 700;
  color: #fff;
  display: flex;
  align-items: center;
  gap: 10px;
}
.nav-logo span { color: var(--cyan-400); }
.nav-actions { display: flex; align-items: center; gap: 10px; }

/* ── Alerts ─────────────────────────────────────────────── */
.alert {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  padding: 12px 16px;
  border-radius: var(--radius-md);
  font-size: 13px;
  line-height: 1.5;
}
.alert-error  { background: rgba(239,68,68,.1);  border: 1px solid rgba(239,68,68,.25);  color: #fca5a5; }
.alert-warn   { background: rgba(251,191,36,.1); border: 1px solid rgba(251,191,36,.25); color: #fde68a; }
.alert-success{ background: rgba(34,197,94,.1);  border: 1px solid rgba(34,197,94,.25);  color: #86efac; }
.alert-info   { background: rgba(59,130,246,.1); border: 1px solid rgba(59,130,246,.25); color: var(--navy-200); }

/* ── Divider ────────────────────────────────────────────── */
.divider {
  border: none;
  border-top: 1px solid var(--navy-800);
  margin: 20px 0;
}

/* ── Spinner ────────────────────────────────────────────── */
@keyframes spin { to { transform: rotate(360deg); } }
.spinner {
  width: 18px; height: 18px;
  border: 2px solid rgba(255,255,255,.2);
  border-top-color: #fff;
  border-radius: 50%;
  animation: spin .6s linear infinite;
  flex-shrink: 0;
}

/* ── Utils ──────────────────────────────────────────────── */
.sr-only { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0,0,0,0); white-space: nowrap; }
.flex    { display: flex; }
.flex-col{ display: flex; flex-direction: column; }
.items-center { align-items: center; }
.justify-between { justify-content: space-between; }
.gap-2 { gap: 8px; }
.gap-3 { gap: 12px; }
.gap-4 { gap: 16px; }
.text-sm  { font-size: 13px; }
.text-xs  { font-size: 11px; }
.text-muted { color: var(--gray-500); }
.text-accent { color: var(--cyan-400); }
.font-display { font-family: var(--font-display); }
.font-bold { font-weight: 700; }
.w-full { width: 100%; }
.mt-1 { margin-top: 4px; }
.mt-2 { margin-top: 8px; }
.mt-4 { margin-top: 16px; }

/* ── Scrollbar personalizada ────────────────────────────── */
::-webkit-scrollbar { width: 6px; height: 6px; }
::-webkit-scrollbar-track { background: var(--navy-900); }
::-webkit-scrollbar-thumb { background: var(--navy-700); border-radius: 3px; }
::-webkit-scrollbar-thumb:hover { background: var(--navy-600); }