/* ══════════════════════════════════════════════════════
   João dos Venenos — Admin Panel
   Tailwind handles layout/spacing/typography.
   This CSS handles: theme identity, animations, scrollbar,
   Chart.js canvas, and classes referenced by app.js.
   ══════════════════════════════════════════════════════ */

@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=JetBrains+Mono:wght@400;500;600;700&display=swap');

:root {
  /* ── Core palette (used by Tailwind config + fallbacks) ── */
  --bg:            #08090d;
  --bg-subtle:     #0e1015;
  --surface:       #13151c;
  --surface-hover: #1a1d27;
  --surface-alt:   #181b24;
  --border:        #252833;
  --border-subtle: #1e2130;

  --text:          #e2e4ea;
  --text-muted:    #6b7084;
  --text-dim:      #484d61;

  --accent:        #34d399;
  --accent-dim:    #10b981;
  --accent-glow:   rgba(52, 211, 153, .12);
  --accent-strong: rgba(52, 211, 153, .25);

  --green:         #34d399;
  --green-dim:     rgba(52, 211, 153, .12);
  --yellow:        #fbbf24;
  --yellow-dim:    rgba(251, 191, 36, .10);
  --red:           #f87171;
  --red-dim:       rgba(248, 113, 113, .10);
  --blue:          #60a5fa;
  --blue-dim:      rgba(96, 165, 250, .10);

  --radius:        10px;
  --radius-sm:     6px;
  --radius-lg:     14px;
  --transition:    .2s cubic-bezier(.4,0,.2,1);

  --font-sans:     'DM Sans', -apple-system, BlinkMacSystemFont, sans-serif;
  --font-mono:     'JetBrains Mono', 'SF Mono', monospace;
}

/* ── Reset ── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { font-size: 14px; -webkit-font-smoothing: antialiased; -moz-osx-font-smoothing: grayscale; }

body {
  font-family: var(--font-sans);
  background: var(--bg);
  color: var(--text);
  line-height: 1.55;
  min-height: 100vh;
  /* Subtle radial background orbs */
  background-image:
    radial-gradient(ellipse 80% 50% at 50% -20%, rgba(52,211,153,.04), transparent),
    radial-gradient(ellipse 60% 40% at 80% 100%, rgba(96,165,250,.03), transparent);
  background-attachment: fixed;
}

::selection { background: var(--accent-strong); color: #fff; }

/* ── Scrollbar ── */
::-webkit-scrollbar { width: 6px; height: 6px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: var(--border); border-radius: 3px; }
::-webkit-scrollbar-thumb:hover { background: var(--text-dim); }

/* ═══════════════ BUTTONS (base — Tailwind overrides per-instance) ═══════════════ */

.btn {
  display: inline-flex;
  align-items: center;
  gap: .45rem;
  padding: .55rem 1.1rem;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  background: var(--surface);
  color: var(--text);
  font-family: var(--font-sans);
  font-size: .82rem;
  font-weight: 500;
  cursor: pointer;
  transition: all var(--transition);
  white-space: nowrap;
  letter-spacing: .01em;
}

.btn:hover {
  background: var(--surface-hover);
  border-color: var(--text-dim);
}

.btn:disabled {
  opacity: .4;
  cursor: not-allowed;
}

.btn-primary {
  background: var(--accent-dim);
  border-color: var(--accent-dim);
  color: #fff;
  font-weight: 600;
}

.btn-primary:hover {
  background: var(--accent);
  border-color: var(--accent);
  box-shadow: 0 0 20px var(--accent-glow);
}

.btn-sm {
  padding: .3rem .7rem;
  font-size: .78rem;
}

.btn-danger { border-color: rgba(248,113,113,.4); color: var(--red); }
.btn-danger:hover { background: var(--red-dim); }

.btn-green { border-color: rgba(52,211,153,.4); color: var(--green); }
.btn-green:hover { background: var(--green-dim); box-shadow: 0 0 12px var(--accent-glow); }

.btn-block { width: 100%; justify-content: center; }

/* ═══════════════ STOCK PILL BADGES (referenced by app.js) ═══════════════ */

.stock-pill {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 36px;
  padding: .15rem .6rem;
  border-radius: 20px;
  font-family: var(--font-mono);
  font-size: .75rem;
  font-weight: 700;
  letter-spacing: .02em;
}

.stock-ok {
  background: rgba(52, 211, 153, .12);
  color: var(--green);
}

.stock-low {
  background: rgba(251, 191, 36, .12);
  color: var(--yellow);
}

.stock-critical {
  background: rgba(248, 113, 113, .12);
  color: var(--red);
  animation: pulseRed 2s ease-in-out infinite;
}

@keyframes pulseRed {
  0%, 100% { opacity: 1; }
  50% { opacity: .6; }
}

/* ═══════════════ BADGES (referenced by app.js) ═══════════════ */

.badge {
  display: inline-block;
  padding: .2rem .65rem;
  border-radius: 20px;
  font-size: .68rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: .04em;
  font-family: var(--font-sans);
}

.badge-green  { background: var(--green-dim);  color: var(--green);  }
.badge-yellow { background: var(--yellow-dim); color: var(--yellow); }
.badge-red    { background: var(--red-dim);    color: var(--red);    }
.badge-blue   { background: var(--blue-dim);   color: var(--blue);   }
.badge-muted  { background: rgba(107,112,132,.12); color: var(--text-muted); }

/* ═══════════════ CHART.JS CANVAS ═══════════════ */

.chart-card canvas {
  width: 100% !important;
  max-height: 250px;
}

/* ═══════════════ LOADING SPINNER ═══════════════ */

.spinner {
  display: inline-block;
  width: 16px;
  height: 16px;
  border: 2px solid var(--border);
  border-top-color: var(--accent);
  border-radius: 50%;
  animation: spin .6s linear infinite;
}

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

/* ═══════════════ TOASTS ═══════════════ */

.toast {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: .7rem 1.15rem;
  font-size: .82rem;
  box-shadow: 0 8px 32px rgba(0,0,0,.5), 0 0 1px rgba(0,0,0,.6);
  font-weight: 500;
}

.toast-success { border-left: 3px solid var(--green); }
.toast-error { border-left: 3px solid var(--red); }

/* ═══════════════ DROPZONE ACTIVE STATE ═══════════════ */

.dropzone.drag-over {
  border-color: var(--accent) !important;
  background: var(--accent-glow) !important;
}

/* ═══════════════ SELECT ARROW ═══════════════ */

select {
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'%3E%3Cpath fill='%236b7084' d='M2 4l4 4 4-4'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right .85rem center;
  padding-right: 2.2rem !important;
}

/* ═══════════════ HIDDEN UTILITY ═══════════════ */

.hidden { display: none !important; }

/* ═══════════════ RESPONSIVE ═══════════════ */

@media (max-width: 640px) {
  .navbar {
    flex-wrap: wrap;
    height: auto !important;
    padding: .5rem 1rem !important;
  }
  .navbar-tabs {
    order: 3;
    width: 100%;
    justify-content: center;
    border-top: 1px solid var(--border-subtle);
    padding-top: .35rem;
    margin-top: .35rem;
  }
  .toolbar {
    flex-direction: column;
    align-items: stretch;
  }
  .toolbar-right {
    margin-left: 0 !important;
  }
}