/* ============================================================
   ASOS: reset, tipografiya, layout primitivlari
   ============================================================ */

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

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

body {
  font-family: var(--font-body);
  font-size: var(--text-base);
  line-height: var(--leading-normal);
  color: var(--text-primary);
  background: var(--surface-0);
  min-height: 100vh;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

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

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

button {
  background: none;
  border: none;
  cursor: pointer;
}

a {
  color: inherit;
  text-decoration: none;
}

ul,
ol {
  list-style: none;
}

/* Klaviatura bilan navigatsiya ko'rinadigan bo'lsin (sichqonchada emas) */
:focus-visible {
  outline: 2px solid var(--brand);
  outline-offset: 2px;
  border-radius: var(--radius-sm);
}

::selection {
  background: var(--brand);
  color: var(--text-on-brand);
}

/* ---------- Scrollbar ---------- */
::-webkit-scrollbar {
  width: 10px;
  height: 10px;
}
::-webkit-scrollbar-track {
  background: transparent;
}
::-webkit-scrollbar-thumb {
  background: var(--surface-3);
  border-radius: var(--radius-full);
  border: 2px solid var(--surface-0);
}
::-webkit-scrollbar-thumb:hover {
  background: var(--text-tertiary);
}

/* ============================================================
   TIPOGRAFIYA
   ============================================================ */

h1, h2, h3, h4 {
  font-family: var(--font-display);
  font-weight: 700;
  line-height: var(--leading-tight);
  letter-spacing: -0.02em;
}

h1 { font-size: var(--text-3xl); }
h2 { font-size: var(--text-2xl); }
h3 { font-size: var(--text-xl); }
h4 { font-size: var(--text-lg); }

.text-secondary { color: var(--text-secondary); }
.text-tertiary  { color: var(--text-tertiary); }

/* Uzun matnni o'qilishi qulay kenglikda ushlab turadi */
.prose {
  max-width: 68ch;
  color: var(--text-secondary);
  line-height: var(--leading-normal);
}

/* ============================================================
   LAYOUT
   ============================================================ */

.container {
  width: 100%;
  max-width: var(--container-max);
  margin-inline: auto;
  padding-inline: var(--container-pad);
}

/* Sahifa bo'limlari orasidagi bir xil vertikal ritm */
.section {
  padding-block: var(--space-12);
}
.section + .section {
  padding-top: 0;
}

.section-header {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: var(--space-4);
  margin-bottom: var(--space-5);
}

.section-title {
  font-size: var(--text-xl);
  font-weight: 700;
}

.section-link {
  font-size: var(--text-sm);
  color: var(--text-secondary);
  transition: color var(--duration-fast) var(--ease);
}
.section-link:hover {
  color: var(--brand);
}

/* ---------- Yordamchi ---------- */
.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;
}

/* Gorizontal scroll konteynerlari (rail) */
.scroll-x {
  display: flex;
  gap: var(--space-4);
  overflow-x: auto;
  scroll-snap-type: x proximity;
  scrollbar-width: none;
  -webkit-overflow-scrolling: touch;
}
.scroll-x::-webkit-scrollbar { display: none; }
.scroll-x > * { scroll-snap-align: start; flex: none; }