/*
 * Campus Circle Base Layer
 * Quiet, precise, keyboard-safe defaults.
 */
*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  height: 100%;
  scroll-behavior: auto;
  scroll-padding-top: calc(var(--header-h) + 20px);
  text-size-adjust: 100%;
}

html.lenis,
html.lenis body {
  height: auto;
}

.lenis.lenis-smooth {
  scroll-behavior: auto !important;
}

.lenis.lenis-smooth [data-lenis-prevent] {
  overscroll-behavior: contain;
}

.lenis.lenis-stopped {
  overflow: hidden;
}

body {
  min-height: 100dvh;
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: var(--font-sans);
  font-size: var(--text-base);
  line-height: var(--leading-normal);
  letter-spacing: 0;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

/* Micro-noise base: barely-there matte grain, no color drift */
body::before {
  content: "";
  position: fixed;
  inset: 0;
  z-index: -1;
  pointer-events: none;
  opacity: 0.5;
  background-image: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='140' height='140'><filter id='n'><feTurbulence type='fractalNoise' baseFrequency='0.82' numOctaves='2' stitchTiles='stitch'/><feColorMatrix type='saturate' values='0'/></filter><rect width='140' height='140' filter='url(%23n)' opacity='0.035'/></svg>");
  background-size: 140px 140px;
}

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

img {
  height: auto;
}

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

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

button,
[role="button"],
input,
textarea,
select,
a {
  touch-action: manipulation;
  -webkit-tap-highlight-color: transparent;
}

button {
  cursor: pointer;
}

h1,
h2,
h3,
h4,
h5,
p,
dl,
dd,
dt,
ul,
ol,
figure,
blockquote {
  margin: 0;
}

h1,
h2,
h3,
h4,
h5 {
  text-wrap: balance;
  letter-spacing: 0;
}

ul,
ol {
  padding: 0;
  list-style: none;
}

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

* {
  scrollbar-width: thin;
  scrollbar-color: var(--line-strong) transparent;
}

::-webkit-scrollbar {
  width: 10px;
  height: 10px;
}

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

::-webkit-scrollbar-thumb {
  background: var(--line-strong);
  border: 2px solid var(--bg);
  border-radius: var(--r-pill);
}

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

input,
textarea,
select {
  caret-color: var(--accent);
}

:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
  border-radius: var(--r-sm);
}

.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;
}

.skip-link {
  position: fixed;
  top: 10px;
  left: 10px;
  z-index: calc(var(--z-toast) + 1);
  padding: 10px 16px;
  border-radius: var(--r-md);
  background: var(--ink);
  color: var(--surface);
  font-size: var(--text-sm);
  font-weight: 650;
  transform: translateY(-160%);
  transition: transform var(--dur-3) var(--ease-out);
}

.skip-link:focus {
  transform: none;
}

.container {
  width: min(var(--container), calc(100% - var(--content-pad) * 2));
  margin-inline: auto;
}

.container.narrow {
  width: min(var(--container-narrow), calc(100% - var(--content-pad) * 2));
}

.page-main {
  min-height: calc(100dvh - var(--header-h));
  padding: 32px 0 72px;
}

.flex {
  display: flex;
  align-items: center;
  gap: var(--sp-4);
  flex-wrap: wrap;
}

.flex-between {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--sp-4);
  flex-wrap: wrap;
}

.gap-sm {
  gap: var(--sp-2);
}

.mt-16 {
  margin-top: var(--sp-4);
}

.mt-20 {
  margin-top: var(--sp-5);
}

.mt-24 {
  margin-top: var(--sp-6);
}

.mb-16 {
  margin-bottom: var(--sp-4);
}

.mb-24 {
  margin-bottom: var(--sp-6);
}

.text-center {
  text-align: center;
}

.text-sm {
  font-size: var(--text-sm);
}

.muted {
  color: var(--muted);
}

.small-text {
  font-size: var(--text-xs);
  line-height: 1.5;
}

.title-mt {
  margin-top: var(--sp-4);
}

.pre-line {
  white-space: pre-line;
}

.icon {
  width: 18px;
  height: 18px;
  flex: none;
}

/* The old index redirect card, kept graceful */
.error-page {
  display: grid;
  place-items: center;
  min-height: 100dvh;
  padding: var(--sp-6);
  background: var(--bg);
}

.error-page > div {
  width: min(440px, 100%);
  padding: var(--sp-8);
  border: 1px solid var(--line);
  border-radius: var(--r-xl);
  background: var(--surface);
  box-shadow: var(--shadow-md);
  text-align: center;
}

.error-copy {
  margin: var(--sp-4) 0 var(--sp-6);
  color: var(--muted);
}

.error-actions {
  display: flex;
  gap: var(--sp-3);
  justify-content: center;
  flex-wrap: wrap;
}