/* ===================================================================
   Tracking Buddy — base.css
   Resets, typography, fundamental layout
   =================================================================== */

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
  -webkit-tap-highlight-color: transparent;
}

html, body {
  height: 100%;
  overscroll-behavior: none;
}

body {
  font-family: 'Nunito', 'Quicksand', system-ui, -apple-system, sans-serif;
  font-size: 16px;
  line-height: 1.5;
  color: var(--text-primary);
  background: var(--bg-primary);
  background-image:
    radial-gradient(circle at 15% 12%, var(--accent-soft) 0%, transparent 35%),
    radial-gradient(circle at 85% 88%, var(--secondary-soft) 0%, transparent 40%);
  background-attachment: fixed;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
  touch-action: manipulation;
}

#app {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  position: relative;
}

h1, h2, h3, h4 {
  font-family: 'Fredoka', 'Nunito', sans-serif;
  font-weight: 600;
  color: var(--text-primary);
  letter-spacing: -0.01em;
}

h1 { font-size: 1.75rem; }
h2 { font-size: 1.4rem; }
h3 { font-size: 1.15rem; }
h4 { font-size: 1rem; }

p { color: var(--text-secondary); }

button {
  font-family: inherit;
  cursor: pointer;
  border: none;
  background: none;
  color: inherit;
  font-size: inherit;
}

input, textarea, select {
  font-family: inherit;
  font-size: 1rem;
  color: var(--text-primary);
  background: var(--surface);
  border: 2px solid var(--border);
  border-radius: 14px;
  padding: 12px 14px;
  width: 100%;
  outline: none;
  transition: border-color 0.2s, box-shadow 0.2s;
}

input:focus, textarea:focus, select:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 4px var(--accent-soft);
}

input[type="number"] { appearance: textfield; -moz-appearance: textfield; }
input[type="number"]::-webkit-outer-spin-button,
input[type="number"]::-webkit-inner-spin-button { -webkit-appearance: none; margin: 0; }

label {
  display: block;
  font-weight: 600;
  font-size: 0.875rem;
  margin-bottom: 6px;
  color: var(--text-secondary);
}

::-webkit-scrollbar {
  width: 8px;
  height: 8px;
}
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb {
  background: var(--border-strong);
  border-radius: 4px;
}

/* Utility classes */
.hidden { display: none !important; }
.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

/* Animations used app-wide */
@keyframes fadeIn {
  from { opacity: 0; }
  to { opacity: 1; }
}
@keyframes slideUp {
  from { opacity: 0; transform: translateY(20px); }
  to { opacity: 1; transform: translateY(0); }
}
@keyframes popIn {
  0% { opacity: 0; transform: scale(0.85); }
  60% { transform: scale(1.05); }
  100% { opacity: 1; transform: scale(1); }
}
@keyframes wiggle {
  0%, 100% { transform: rotate(0deg); }
  25% { transform: rotate(-1.2deg); }
  75% { transform: rotate(1.2deg); }
}
@keyframes floatUp {
  0% { opacity: 1; transform: translate(-50%, 0) scale(0.8); }
  20% { transform: translate(-50%, -8px) scale(1.1); }
  100% { opacity: 0; transform: translate(-50%, -60px) scale(1); }
}
@keyframes pulse {
  0%, 100% { transform: scale(1); }
  50% { transform: scale(1.05); }
}
@keyframes shimmer {
  0% { background-position: -200% 0; }
  100% { background-position: 200% 0; }
}
@keyframes confetti {
  0% { transform: translateY(0) rotate(0deg); opacity: 1; }
  100% { transform: translateY(100vh) rotate(720deg); opacity: 0; }
}