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

html {
  -webkit-text-size-adjust: 100%;
  -webkit-tap-highlight-color: transparent;
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-sans);
  font-size: 15px;
  line-height: 1.5;
  color: var(--text-primary);
  background: var(--bg-app);
  min-height: 100vh;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  transition: background var(--transition-base), color var(--transition-base);
}

h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-display);
  font-weight: 700;
  line-height: 1.2;
  color: var(--text-primary);
  letter-spacing: -0.01em;
}

h1 { font-size: clamp(1.5rem, 2.5vw, 2rem); }
h2 { font-size: clamp(1.25rem, 2vw, 1.5rem); }
h3 { font-size: 1.125rem; }

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

a {
  color: var(--accent-text);
  text-decoration: none;
  transition: color var(--transition-fast);
}
a:hover { color: var(--accent); }

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

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

input, select, textarea {
  font-family: inherit;
  font-size: inherit;
  color: inherit;
}

.hidden { display: none !important; }

/* Loader */
.app-loader {
  position: fixed;
  inset: 0;
  background: var(--bg-app);
  display: grid;
  place-items: center;
  z-index: 9999;
  transition: opacity var(--transition-base);
}
.app-loader.fade-out { opacity: 0; pointer-events: none; }

.loader-content {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-4);
}
.loader-icon {
  font-size: 3rem;
  color: var(--accent);
  animation: spin 1.5s linear infinite;
}
.loader-text {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 1.5rem;
  color: var(--text-primary);
  letter-spacing: -0.02em;
}

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

/* Selection */
::selection {
  background: var(--accent);
  color: #fff;
}