/* Budget Bear — Base styles: reset, typography, layout primitives */

*, *::before, *::after { box-sizing: border-box; }

html {
  -webkit-text-size-adjust: 100%;
  text-size-adjust: 100%;
}

body {
  margin: 0;
  font-family: var(--font-sans);
  font-size: var(--fs-16);
  line-height: 1.5;
  color: var(--text);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overscroll-behavior-y: none;
}

h1, h2, h3, h4, p { margin: 0; }

h1 { font-size: var(--fs-26); font-weight: var(--fw-bold); letter-spacing: -0.02em; }
h2 { font-size: var(--fs-20); font-weight: var(--fw-semibold); letter-spacing: -0.01em; }
h3 { font-size: var(--fs-16); font-weight: var(--fw-semibold); }

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

button {
  font: inherit;
  color: inherit;
  background: none;
  border: none;
  padding: 0;
  cursor: pointer;
  -webkit-tap-highlight-color: transparent;
}

input, select, textarea {
  font: inherit;
  color: inherit;
}

a { color: var(--primary); text-decoration: none; }

:focus-visible {
  outline: 2px solid var(--green-500);
  outline-offset: 2px;
  border-radius: 4px;
}

::selection { background: var(--green-100); }

/* ------- App layout ------- */

#app {
  max-width: var(--app-max);
  margin: 0 auto;
  min-height: 100dvh;
  position: relative;
  background: var(--bg);
}

@media (min-width: 480px) {
  body { background: #f2f6f2; }
  #app {
    box-shadow: 0 0 0 1px var(--border), var(--shadow-3);
    border-radius: 0;
  }
}

.screen {
  padding: var(--sp-5) var(--sp-4) calc(var(--nav-h) + var(--safe-b) + var(--sp-8));
  min-height: 100dvh;
  animation: screen-in var(--dur-base) var(--ease-out);
}

@keyframes screen-in {
  from { transform: translateY(6px); }
  to   { transform: none; }
}

.screen-header {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  margin-bottom: var(--sp-5);
}

.screen-header .sub {
  font-size: var(--fs-13);
  color: var(--text-2);
}

/* Utility text */
.t-secondary { color: var(--text-2); }
.t-small { font-size: var(--fs-13); }
.t-num { font-variant-numeric: tabular-nums; letter-spacing: -0.01em; }
.t-pos { color: var(--green-600); }
.t-neg { color: var(--error); }

.stack > * + * { margin-top: var(--sp-3); }
.stack-lg > * + * { margin-top: var(--sp-5); }

.row {
  display: flex;
  align-items: center;
  gap: var(--sp-3);
}
.row .grow, .grow { flex: 1; min-width: 0; }

.section-title {
  font-size: var(--fs-13);
  font-weight: var(--fw-semibold);
  color: var(--text-2);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  margin: var(--sp-6) 0 var(--sp-3);
}

.visually-hidden {
  position: absolute;
  width: 1px; height: 1px;
  clip-path: inset(50%);
  overflow: hidden;
  white-space: nowrap;
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}

/* In-app "Reduce motion" setting (Profile → Preferences) — same effect as the
   OS-level preference above, but user-controlled per device. */
[data-reduce-motion] *, [data-reduce-motion] *::before, [data-reduce-motion] *::after {
  animation-duration: 0.01ms !important;
  animation-iteration-count: 1 !important;
  transition-duration: 0.01ms !important;
}