/* ============================================
   Nextcom V6 — Base / Reset (Premium Redesign)
   ============================================ */

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

html {
  font-size: 16px;
  -webkit-text-size-adjust: 100%;
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-family);
  font-size: var(--text-base);
  line-height: var(--leading-normal);
  color: var(--text-primary);
  background-color: var(--bg-body);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  min-height: 100vh;
}

/* ---------- Headings ---------- */
h1, h2, h3, h4, h5, h6 {
  line-height: var(--leading-tight);
  font-weight: var(--font-semibold);
  color: var(--text-primary);
  letter-spacing: var(--tracking-tight);
}

h1 {
  font-size: var(--text-3xl);
  font-weight: var(--font-bold);
  letter-spacing: -0.03em;
}

h2 {
  font-size: var(--text-2xl);
  letter-spacing: -0.02em;
}

h3 {
  font-size: var(--text-xl);
  letter-spacing: -0.015em;
}

h4 {
  font-size: var(--text-lg);
}

/* ---------- Links ---------- */
a {
  color: var(--color-primary);
  text-decoration: none;
  transition: color var(--transition-fast);
}

a:hover {
  color: var(--color-primary-hover);
}

/* ---------- Lists ---------- */
ul, ol {
  list-style: none;
}

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

/* ---------- Focus visible ---------- */
:focus-visible {
  outline: 2px solid var(--color-primary);
  outline-offset: 2px;
}

:focus:not(:focus-visible) {
  outline: none;
}

/* ---------- Selection ---------- */
::selection {
  background-color: var(--color-primary);
  color: #ffffff;
}

/* ---------- Scrollbar ---------- */
::-webkit-scrollbar {
  width: 6px;
  height: 6px;
}

::-webkit-scrollbar-track {
  background: transparent;
}

::-webkit-scrollbar-thumb {
  background: var(--border-color-strong);
  border-radius: var(--radius-full);
  transition: background var(--transition-fast);
}

::-webkit-scrollbar-thumb:hover {
  background: var(--text-muted);
}

::-webkit-scrollbar-corner {
  background: transparent;
}

/* Firefox */
* {
  scrollbar-width: thin;
  scrollbar-color: var(--border-color-strong) transparent;
}

/* ---------- Screen-reader only ---------- */
.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;
}

/* ---------- Misc ---------- */
button {
  font-family: inherit;
  cursor: pointer;
}

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

table {
  border-collapse: collapse;
  width: 100%;
}

hr {
  border: none;
  border-top: 1px solid var(--border-color);
  margin: var(--space-lg) 0;
}

/* ---------- Smooth page transitions ---------- */
.app {
  animation: pageLoad 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

@keyframes pageLoad {
  from {
    opacity: 0;
    transform: translateY(4px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}