/* ── VARIABLES ── */
:root {
  --green-dark:   #1e3a1e;
  --green-deep:   #2d5a27;
  --green-mid:    #4a7c40;
  --green-light:  #6fa860;
  --green-pale:   #c8e6c0;
  --amber:        #d4831a;
  --amber-light:  #f0a832;
  --wood:         #8b5e3c;
  --wood-light:   #c4905a;
  --cream:        #f5f0e8;
  --cream-dark:   #e8e0d0;
  --bark:         #3d2b1f;
  --white:        #ffffff;
  --red:          #c0392b;
  --red-light:    #e74c3c;

  --shadow-sm:  0 2px 8px rgba(30,58,30,0.12);
  --shadow-md:  0 4px 20px rgba(30,58,30,0.18);
  --shadow-lg:  0 8px 40px rgba(30,58,30,0.25);
  --radius:     12px;
  --radius-lg:  20px;
}

/* ── RESET ── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: 'Nunito', sans-serif;
  background: var(--cream);
  color: var(--bark);
  min-height: 100vh;
  background-image:
    radial-gradient(ellipse at 0% 0%, rgba(106,168,96,0.08) 0%, transparent 60%),
    radial-gradient(ellipse at 100% 100%, rgba(212,131,26,0.06) 0%, transparent 60%);
}

/* ── HEADER ── */
.site-header {
  background: linear-gradient(135deg, var(--green-dark) 0%, var(--green-deep) 100%);
  box-shadow: var(--shadow-lg);
  position: sticky;
  top: 0;
  z-index: 100;
}
.header-inner {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 1.5rem;
  display: flex;
  align-items: center;
  gap: 2rem;
  flex-wrap: wrap;
  min-height: 70px;
}
.header-brand {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  flex-shrink: 0;
}
.brand-icon { font-size: 2rem; }
.brand-title {
  font-family: 'Cabin Condensed', sans-serif;
  font-size: 1.6rem;
  color: var(--green-pale);
  letter-spacing: 0.08em;
  line-height: 1;
}
.brand-sub {
  font-size: 0.7rem;
  color: var(--green-light);
  letter-spacing: 0.15em;
  text-transform: uppercase;
}

/* ── NAV TABS ── */
.tab-nav {
  display: flex;
  gap: 0.25rem;
  flex-wrap: wrap;
  padding: 0.5rem 0;
}
.tab-btn {
  font-family: 'Cabin', sans-serif;
  font-size: 0.85rem;
  font-weight: 600;
  padding: 0.45rem 1rem;
  border: none;
  border-radius: 50px;
  cursor: pointer;
  background: rgba(255,255,255,0.1);
  color: var(--green-pale);
  transition: all 0.2s ease;
  letter-spacing: 0.02em;
}
.tab-btn:hover { background: rgba(255,255,255,0.2); }
.tab-btn.active {
  background: var(--amber);
  color: var(--white);
  box-shadow: 0 2px 10px rgba(212,131,26,0.4);
}

/* ── MAIN ── */
.main-content {
  max-width: 1200px;
  margin: 0 auto;
  padding: 2rem 1.5rem;
}

/* ── TAB SECTIONS ── */
.tab-section { display: none; animation: fadeIn 0.3s ease; }
.tab-section.active { display: block; }
@keyframes fadeIn { from { opacity: 0; transform: translateY(8px); } to { opacity: 1; transform: none; } }

/* ── DASHBOARD GRID ── */
.dashboard-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(230px, 1fr));
  gap: 1.25rem;
  margin-bottom: 2rem;
}
.card {
  background: var(--white);
  border-radius: var(--radius-lg);
  padding: 1.5rem;
  box-shadow: var(--shadow-sm);
  border-left: 5px solid var(--green-mid);
  transition: transform 0.2s, box-shadow 0.2s;
}
.card:hover { transform: translateY(-2px); box-shadow: var(--shadow-md); }
.card-hero { border-left-color: var(--green-deep); background: linear-gradient(135deg, #f0f9ec 0%, #fff 100%); }
.card-warn { border-left-color: var(--amber); background: linear-gradient(135deg, #fff8ec 0%, #fff 100%); }
.card-label {
  font-size: 0.78rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--green-mid);
  margin-bottom: 0.5rem;
}
.card-warn .card-label { color: var(--amber); }
.card-value {
  font-family: 'Cabin Condensed', sans-serif;
  font-size: 2rem;
  color: var(--green-dark);
  line-height: 1;
  margin-bottom: 0.35rem;
}
.card-warn .card-value { color: var(--amber); }
.card-sub { font-size: 0.8rem; color: #888; }

/* ── QUICK ACTIONS ── */
.quick-actions {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
}

/* ── SECTION BLOCKS ── */
.section-block { margin-bottom: 2.5rem; }
.section-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 1.25rem;
  flex-wrap: wrap;
  gap: 0.75rem;
}
.section-title {
  font-family: 'Cabin', sans-serif;
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--green-dark);
  margin-bottom: 1.25rem;
  padding-bottom: 0.5rem;
  border-bottom: 2px solid var(--green-pale);
  display: flex;
  align-items: center;
  gap: 0.5rem;
}
.section-header .section-title { margin-bottom: 0; border-bottom: none; padding-bottom: 0; }

/* ── TABLE ── */
.table-wrap { overflow-x: auto; border-radius: var(--radius); box-shadow: var(--shadow-sm); }
.data-table {
  width: 100%;
  border-collapse: collapse;
  background: var(--white);
  font-size: 0.88rem;
}
.data-table thead th {
  background: var(--green-dark);
  color: var(--green-pale);
  font-family: 'Cabin', sans-serif;
  font-weight: 600;
  padding: 0.8rem 1rem;
  text-align: left;
  font-size: 0.78rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}
.data-table tbody tr { border-bottom: 1px solid var(--cream-dark); transition: background 0.15s; }
.data-table tbody tr:last-child { border-bottom: none; }
.data-table tbody tr:hover { background: #f8fdf5; }
.data-table td { padding: 0.75rem 1rem; color: var(--bark); vertical-align: middle; }
.data-table td.mono { font-family: 'Cabin Condensed', sans-serif; font-size: 1rem; }
.badge-diff {
  display: inline-block;
  padding: 0.2rem 0.5rem;
  border-radius: 50px;
  font-size: 0.75rem;
  font-weight: 700;
}
.badge-pos { background: #e8f5e9; color: var(--green-deep); }
.badge-zero { background: var(--cream-dark); color: #aaa; }

/* ── BUTTONS ── */
.btn {
  font-family: 'Cabin', sans-serif;
  font-weight: 700;
  font-size: 0.875rem;
  padding: 0.6rem 1.25rem;
  border: none;
  border-radius: 8px;
  cursor: pointer;
  transition: all 0.2s ease;
  letter-spacing: 0.02em;
}
.btn-primary { background: var(--green-deep); color: #fff; }
.btn-primary:hover { background: var(--green-dark); transform: translateY(-1px); box-shadow: 0 4px 12px rgba(45,90,39,0.35); }
.btn-success { background: var(--green-mid); color: #fff; }
.btn-success:hover { background: var(--green-deep); transform: translateY(-1px); }
.btn-accent { background: var(--amber); color: #fff; }
.btn-accent:hover { background: #c07010; transform: translateY(-1px); box-shadow: 0 4px 12px rgba(212,131,26,0.35); }
.btn-ghost { background: transparent; color: var(--bark); border: 1.5px solid var(--cream-dark); }
.btn-ghost:hover { background: var(--cream-dark); }
.btn-danger { background: var(--red); color: #fff; padding: 0.3rem 0.65rem; font-size: 0.75rem; }
.btn-danger:hover { background: var(--red-light); }
.btn-sm { padding: 0.3rem 0.65rem; font-size: 0.75rem; }

/* ── FORMS ── */
.form-group { margin-bottom: 1.1rem; }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 1rem; }
.form-label {
  display: block;
  font-weight: 600;
  font-size: 0.82rem;
  color: var(--green-dark);
  margin-bottom: 0.35rem;
  letter-spacing: 0.03em;
}
.form-input {
  width: 100%;
  padding: 0.6rem 0.85rem;
  border: 2px solid var(--cream-dark);
  border-radius: 8px;
  font-family: 'Nunito', sans-serif;
  font-size: 0.92rem;
  color: var(--bark);
  background: var(--cream);
  transition: border-color 0.2s;
  outline: none;
}
.form-input:focus { border-color: var(--green-mid); background: #fff; }
.form-hint { font-size: 0.75rem; color: #999; margin-top: 0.3rem; display: block; }

.valor-preview {
  background: var(--green-dark);
  color: var(--green-pale);
  font-family: 'Cabin Condensed', sans-serif;
  font-size: 1.75rem;
  padding: 0.5rem 1rem;
  border-radius: 8px;
  text-align: center;
}

.liq-preview-box {
  background: linear-gradient(135deg, #f0f9ec, #fff);
  border: 2px solid var(--green-pale);
  border-radius: var(--radius);
  padding: 1rem;
  margin: 0.75rem 0;
}
.liq-row {
  display: flex;
  justify-content: space-between;
  padding: 0.3rem 0;
  font-size: 0.9rem;
  color: #666;
}
.liq-total {
  border-top: 2px solid var(--green-pale);
  margin-top: 0.5rem;
  padding-top: 0.75rem;
  font-size: 1.05rem;
  color: var(--green-dark);
  font-weight: 700;
}
.liq-total strong { font-size: 1.3rem; color: var(--green-deep); }

/* ── CONFIG FORM ── */
.config-form {
  background: var(--white);
  border-radius: var(--radius-lg);
  padding: 2rem;
  box-shadow: var(--shadow-sm);
  max-width: 480px;
}

/* ── MODAL ── */
.modal-overlay {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(30,58,30,0.5);
  backdrop-filter: blur(4px);
  z-index: 1000;
  align-items: center;
  justify-content: center;
  padding: 1rem;
}
.modal-overlay.open { display: flex; }
.modal {
  background: var(--white);
  border-radius: var(--radius-lg);
  width: 100%;
  max-width: 480px;
  box-shadow: var(--shadow-lg);
  animation: slideUp 0.25s ease;
}
@keyframes slideUp { from { opacity: 0; transform: translateY(30px); } to { opacity: 1; transform: none; } }
.modal-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 1.25rem 1.5rem;
  border-bottom: 2px solid var(--cream-dark);
}
.modal-header h3 { font-family: 'Cabin', sans-serif; font-size: 1.1rem; color: var(--green-dark); }
.modal-close { background: none; border: none; font-size: 1.2rem; cursor: pointer; color: #aaa; padding: 0.25rem; }
.modal-close:hover { color: var(--red); }
.modal-body { padding: 1.5rem; }
.modal-footer {
  display: flex;
  justify-content: flex-end;
  gap: 0.75rem;
  padding: 1rem 1.5rem;
  border-top: 2px solid var(--cream-dark);
}

/* ── TOAST ── */
.toast {
  position: fixed;
  bottom: 2rem;
  left: 50%;
  transform: translateX(-50%) translateY(100px);
  background: var(--green-dark);
  color: var(--green-pale);
  padding: 0.75rem 1.5rem;
  border-radius: 50px;
  font-weight: 600;
  font-size: 0.9rem;
  z-index: 9999;
  transition: transform 0.3s ease;
  pointer-events: none;
}
.toast.show { transform: translateX(-50%) translateY(0); }
.toast.error { background: var(--red); color: #fff; }

/* ── RESPONSIVE ── */
@media (max-width: 600px) {
  .header-inner { gap: 0.75rem; padding: 0.5rem 1rem; }
  .brand-title { font-size: 1.3rem; }
  .form-row { grid-template-columns: 1fr; }
  .quick-actions { flex-direction: column; }
  .dashboard-grid { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 400px) {
  .dashboard-grid { grid-template-columns: 1fr; }
}