/* BASE.CSS — Design System, Resets, Tokens, Layout Shell */

/* ============================================================
   STYLE.CSS — DESIGN SYSTEM & BASE STYLES
   WolfSource - Gestão Financeira · Navy Blue & Gold Theme · Inter Font
   ============================================================ */

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

/* ─── DESIGN TOKENS ─── */
:root {
  /* Primary — Navy Blue (from WolfSource logo) */
  --primary:        #3D6A8E;
  --primary-dark:   #2B4D68;
  --primary-light:  #6D9ABE;
  --primary-rgb:    61, 106, 142;

  /* Accent — Gold (from WolfSource logo) */
  --accent-gold:    #C9A84C;
  --accent-gold-dark: #A68A35;

  /* Income — Cyan / Teal */
  --income:         #4CC9F0;
  --income-dark:    #0096C7;
  --income-bg:      #EAF8FE;

  /* Expense — warm red-orange */
  --expense:        #E74C3C;
  --expense-bg:     #FDECEB;

  /* Semantic */
  --success:        #06D6A0;
  --success-bg:     #E6FBF6;
  --danger:         #EF233C;
  --danger-bg:      #FDE8EB;
  --warning:        #F8961E;
  --warning-bg:     #FEF3E6;
  --info:           #4895EF;
  --info-bg:        #EBF3FE;

  /* Neutrals */
  --text-primary:   #1A1A2E;
  --text-secondary: #6B7280;
  --text-muted:     #9CA3AF;
  --text-white:     #FFFFFF;

  /* Surfaces */
  --bg:             #F0F2F8;
  --bg-card:        #FFFFFF;
  --bg-card-alt:    #F8F9FF;
  --border:         #E5E7EB;
  --border-focus:   var(--primary);

  /* Shadows */
  --shadow-xs:   0 1px 2px rgba(0,0,0,0.05), 0 1px 4px rgba(0,0,0,0.04);
  --shadow-sm:   0 1px 3px rgba(0,0,0,0.06), 0 4px 12px rgba(0,0,0,0.07);
  --shadow-md:   0 4px 8px rgba(0,0,0,0.07), 0 12px 28px rgba(0,0,0,0.09);
  --shadow-lg:   0 8px 16px rgba(0,0,0,0.08), 0 24px 48px rgba(0,0,0,0.12);
  --shadow-xl:   0 16px 32px rgba(0,0,0,0.10), 0 40px 80px rgba(0,0,0,0.14);
  --shadow-brand: 0 8px 32px rgba(61, 106, 142, 0.30);

  /* Border Radius */
  --r-xs:  4px;
  --r-sm:  8px;
  --r-md:  12px;
  --r-lg:  16px;
  --r-xl:  20px;
  --r-2xl: 28px;
  --r-full: 9999px;

  /* Spacing */
  --sp-1:  4px;
  --sp-2:  8px;
  --sp-3:  12px;
  --sp-4:  16px;
  --sp-5:  20px;
  --sp-6:  24px;

  /* Typography */
  --font:  'Inter', system-ui, -apple-system, sans-serif;
  --fw-light:   300;
  --fw-normal:  400;
  --fw-medium:  500;
  --fw-semi:    600;
  --fw-bold:    700;
  --fw-black:   800;

  /* Transitions */
  --ease:      200ms ease;
  --ease-med:  350ms ease;
  --ease-slow: 500ms ease;

  /* Z-index layers */
  --z-base:    1;
  --z-sticky:  50;
  --z-nav:     100;
  --z-overlay: 500;
  --z-modal:   1000;
  --z-toast:   1100;

  /* Gradients */
  --grad-primary: linear-gradient(135deg, #3D6A8E 0%, #2B4D68 100%);
  --grad-income:  linear-gradient(135deg, #4CC9F0 0%, #0077B6 100%);
  --grad-bg:      linear-gradient(160deg, #F0F2F8 0%, #E8EAF6 100%);
  --grad-card:    linear-gradient(145deg, #FFFFFF 0%, #F8F9FF 100%);
}

/* ─── DARK THEME ─── */
[data-theme="dark"] {
  --text-primary:   #F0F2F8;
  --text-secondary: #9CA3AF;
  --text-muted:     #6B7280;
  --bg:             #0D0D1A;
  --bg-card:        #1A1A2E;
  --bg-card-alt:    #16213E;
  --border:         #2D2D3F;
  --border-focus:   var(--primary);
  --shadow-sm:      0 2px 8px rgba(0,0,0,0.3);
  --shadow-md:      0 4px 16px rgba(0,0,0,0.4);
  --shadow-lg:      0 8px 32px rgba(0,0,0,0.5);
  --grad-bg:        linear-gradient(160deg, #0D0D1A 0%, #16213E 100%);
  --grad-card:      linear-gradient(145deg, #1A1A2E 0%, #16213E 100%);
}

/* ─── BASE ─── */
html {
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
  font-size: 16px;
  overflow: hidden;
  width: 100%;
  height: 100%;
}

body {
  font-family: var(--font);
  background: var(--bg);
  color: var(--text-primary);
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow: hidden;
  width: 100%;
  height: 100%;
  position: fixed;
  inset: 0;
}

/* ─── SCROLLBAR (mobile: hidden, desktop: see responsive.css) ─── */
@media (max-width: 1023px) {
  ::-webkit-scrollbar { width: 0; height: 0; background: transparent; }
  * { scrollbar-width: none; }
}

/* ─── BUTTONS ─── */
button { border: none; cursor: pointer; background: none; }

/* ─── CARDS ─── */
.card {
  background: var(--bg-card);
  border-radius: var(--r-xl);
  box-shadow: var(--shadow-sm);
  padding: var(--sp-5);
  border: 1px solid var(--border);
  transition: box-shadow var(--ease), transform var(--ease);
}
.card:hover { box-shadow: var(--shadow-md); transform: translateY(-1px); }

/* ─── EMPTY STATE ─── */
.empty-state {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 48px 24px;
  gap: 12px;
  color: var(--text-muted);
}
.empty-state-icon {
  width: 64px;
  height: 64px;
  background: var(--bg-card-alt);
  border-radius: var(--r-full);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.75rem;
  margin-bottom: 4px;
}
.empty-state-text {
  font-size: 0.9375rem;
  color: var(--text-muted);
}

/* ─── BADGES / PILLS ─── */
.badge {
  display: inline-flex;
  align-items: center;
  padding: 4px 10px;
  border-radius: var(--r-full);
  font-size: 0.75rem;
  font-weight: var(--fw-medium);
}
.badge.success { background: var(--success-bg); color: var(--success); }
.badge.danger  { background: var(--danger-bg);  color: var(--danger); }
.badge.warning { background: var(--warning-bg); color: var(--warning); }
.badge.info    { background: var(--info-bg);    color: var(--info); }

/* ─── UTILITIES ─── */
.text-primary   { color: var(--primary); }
.text-income    { color: var(--income-dark); }
.text-expense   { color: var(--expense); }
.text-success   { color: var(--success); }
.text-danger    { color: var(--danger); }
.text-muted     { color: var(--text-muted); }
.text-center    { text-align: center; }

.mt-1 { margin-top: var(--sp-1); }
.mt-2 { margin-top: var(--sp-2); }
.mt-4 { margin-top: var(--sp-4); }
.mb-4 { margin-bottom: var(--sp-4); }

/* ─── ALERT (TOAST) ─── */
.alert {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 14px 18px;
  border-radius: var(--r-md);
  margin-bottom: var(--sp-4);
  font-size: 0.9rem;
  font-weight: var(--fw-medium);
  animation: slideDown 300ms ease;
  box-shadow: var(--shadow-sm);
  transition: opacity 300ms ease;
}
.alert.success { background: var(--success-bg); color: var(--success); border-left: 3px solid var(--success); }
.alert.danger  { background: var(--danger-bg);  color: var(--danger);  border-left: 3px solid var(--danger); }
.alert.warning { background: var(--warning-bg); color: var(--warning); border-left: 3px solid var(--warning); }
.alert.info    { background: var(--info-bg);    color: var(--info);    border-left: 3px solid var(--info); }

/* ─── APP CONTAINER (from app-style.css) ─── */
.app-container {
  display: none;
  width: 100%;
  height: 100%;
  flex-direction: column;
  background: var(--bg);
  overflow: hidden;
  position: fixed;
  inset: 0;
}
.app-container.active { display: flex; }

/* ─── MAIN CONTENT ─── */
.main-content {
  flex: 1;
  overflow-y: auto;
  overflow-x: clip;
  padding: 64px 0 96px 0;
  scroll-behavior: smooth;
  background: var(--grad-bg);
  -webkit-overflow-scrolling: touch;
  overscroll-behavior-x: none;
}
.main-content > .alert {
  margin: 16px 20px 0;
}

/* ─── TAB CONTENT ─── */
.tab-content {
  display: none;
  padding: 0;
  animation: fadeIn 250ms ease;
  overflow-x: clip;
  overflow-y: visible;
  max-width: 100%;
}
.tab-content.active { display: block; }