/* ---------- Tokens ---------- */
:root {
  --paper: #ecebe4;
  --ink: #0f0f0e;
  --muted: #6d6b64;
  --accent: #ff4a1c;
  --line: rgba(15, 15, 14, .18);
  --sans: "Neue Haas Grotesk Display Pro", "Helvetica Neue", Helvetica, Inter, "Segoe UI", Arial, sans-serif;
  --serif: "Canela", "Iowan Old Style", "Palatino Linotype", Palatino, Georgia, "Times New Roman", serif;
  --pad: clamp(1.25rem, 4vw, 3.5rem);
  --ease: cubic-bezier(.16, 1, .3, 1);
}

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

html { -webkit-text-size-adjust: 100%; }

body {
  margin: 0;
  min-height: 100vh;
  min-height: 100svh;
  display: flex;
  flex-direction: column;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--sans);
  font-size: clamp(1rem, .95rem + .25vw, 1.15rem);
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  overflow-x: hidden;
}

/* Film grain */
body::after {
  content: "";
  position: fixed;
  inset: -50%;
  z-index: 50;
  pointer-events: none;
  opacity: .07;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='160' height='160'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.85' numOctaves='3' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
  animation: grain 1.2s steps(6) infinite;
}

@keyframes grain {
  0% { transform: translate(0, 0); }
  20% { transform: translate(-4%, 3%); }
  40% { transform: translate(3%, -5%); }
  60% { transform: translate(-2%, 6%); }
  80% { transform: translate(5%, -2%); }
  100% { transform: translate(0, 0); }
}

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

a { color: inherit; }

:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 4px;
}

.skip {
  position: absolute;
  left: var(--pad);
  top: -4rem;
  z-index: 100;
  padding: .6rem 1rem;
  background: var(--ink);
  color: var(--paper);
  text-decoration: none;
  border-radius: 999px;
}
.skip:focus { top: 1rem; }

/* ---------- Navigation ---------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 40;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 1rem;
  padding: 1.25rem var(--pad);
  border-bottom: 1px solid var(--line);
  background: color-mix(in srgb, var(--paper) 82%, transparent);
  -webkit-backdrop-filter: blur(10px);
  backdrop-filter: blur(10px);
}

.site-header::before {
  content: "Logram";
  font-weight: 700;
  font-size: .95rem;
  letter-spacing: -.02em;
}

.nav {
  display: flex;
  gap: clamp(1rem, 3vw, 2.5rem);
  font-size: .8rem;
  letter-spacing: .08em;
  text-transform: uppercase;
}

.nav .sep { display: none; }

.nav a {
  position: relative;
  display: inline-block;
  padding: .25rem 0;
  text-decoration: none;
  overflow: hidden;
}

.nav a::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  height: 1px;
  background: currentColor;
  transform: scaleX(0);
  transform-origin: right;
  transition: transform .6s var(--ease);
}

.nav a:hover::after,
.nav a[aria-current="page"]::after {
  transform: scaleX(1);
  transform-origin: left;
}

.nav a[aria-current="page"]::before {
  content: "";
  display: inline-block;
  width: .45em;
  height: .45em;
  margin-right: .5em;
  border-radius: 50%;
  background: var(--accent);
  vertical-align: .12em;
}

/* ---------- Layout ---------- */
main {
  flex: 1;
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  padding: clamp(4rem, 12vh, 9rem) var(--pad) var(--pad);
  position: relative;
}

/* Page index in the corner */
main::before {
  position: absolute;
  top: clamp(1.5rem, 4vh, 3rem);
  left: var(--pad);
  right: var(--pad);
  font-size: .75rem;
  letter-spacing: .1em;
  text-transform: uppercase;
  color: var(--muted);
}
.page-home main::before { content: "(01) \2014 Index"; }
.page-about main::before { content: "(02) \2014 About"; }
.page-contact main::before { content: "(03) \2014 Contact"; }

h1 {
  margin: 0;
  font-weight: 500;
  font-size: clamp(3.5rem, 13.5vw, 15rem);
  line-height: .86;
  letter-spacing: -.055em;
  text-wrap: balance;
  animation: rise 1.4s var(--ease) both;
}

h1 em {
  font-family: var(--serif);
  font-style: italic;
  font-weight: 400;
  letter-spacing: -.04em;
}

main > p,
.lede {
  max-width: 34ch;
  margin: clamp(2rem, 5vh, 3.5rem) 0 0 auto;
  font-size: clamp(1.15rem, 1rem + .9vw, 1.9rem);
  line-height: 1.25;
  letter-spacing: -.015em;
  animation: fade 1.2s .35s var(--ease) both;
}

main > p a {
  text-decoration: none;
  background: linear-gradient(var(--accent), var(--accent)) 0 100% / 100% 2px no-repeat;
  transition: background-size .5s var(--ease), color .3s;
}
main > p a:hover {
  background-size: 100% 100%;
}

@keyframes rise {
  from { transform: translateY(40%); opacity: 0; clip-path: inset(0 0 100% 0); }
  to { transform: none; opacity: 1; clip-path: inset(0 0 -20% 0); }
}

@keyframes fade {
  from { transform: translateY(1.5rem); opacity: 0; }
  to { transform: none; opacity: 1; }
}

/* ---------- Home marquee ---------- */
.marquee {
  overflow: hidden;
  border-top: 1px solid var(--line);
  background: var(--ink);
  color: var(--paper);
  padding: 1.1rem 0;
  user-select: none;
}

.marquee__track {
  display: flex;
  width: max-content;
  animation: marquee 28s linear infinite;
}

.marquee__track span {
  padding-right: 3rem;
  font-family: var(--serif);
  font-style: italic;
  font-size: clamp(1.5rem, 1rem + 2vw, 3rem);
  line-height: 1;
  white-space: nowrap;
}

.marquee__track span::after {
  content: "\2733";
  font-family: var(--sans);
  font-style: normal;
  color: var(--accent);
  margin-left: 3rem;
}

@keyframes marquee {
  to { transform: translateX(-50%); }
}

/* ---------- Contact ---------- */
.page-contact main { justify-content: flex-start; padding-top: clamp(5rem, 14vh, 10rem); }

.page-contact h1 { margin-bottom: clamp(2.5rem, 7vh, 5rem); }

.hp { position: absolute; left: -9999px; }

.msg {
  display: none;
  max-width: 46rem;
  margin: 0 0 2rem;
  padding: 1rem 1.25rem;
  border-radius: 999px;
  font-size: .95rem;
}
#sent { background: var(--ink); color: var(--paper); }
#sent::before { content: "\2192\00a0\00a0"; color: var(--accent); }
#error { background: var(--accent); color: var(--ink); }

form {
  display: grid;
  grid-template-columns: 1fr 1fr;
  column-gap: clamp(1.5rem, 4vw, 3.5rem);
  max-width: 64rem;
  animation: fade 1.2s .3s var(--ease) both;
}

form p { margin: 0 0 2rem; }
form p:nth-of-type(3),
form p:last-of-type { grid-column: 1 / -1; }

label {
  display: block;
  font-size: .75rem;
  letter-spacing: .1em;
  text-transform: uppercase;
  color: var(--muted);
}

form br { display: none; }

input,
textarea {
  display: block;
  width: 100%;
  margin-top: .4rem;
  padding: .5rem 0 .75rem;
  border: 0;
  border-bottom: 1px solid var(--ink);
  border-radius: 0;
  background: transparent;
  color: var(--ink);
  font: inherit;
  font-size: clamp(1.25rem, 1rem + 1vw, 2rem);
  letter-spacing: -.02em;
  transition: border-color .3s;
}

textarea { resize: vertical; min-height: 8rem; line-height: 1.3; }

input:focus,
textarea:focus {
  outline: none;
  border-bottom-color: var(--accent);
  box-shadow: 0 2px 0 var(--accent);
}

button {
  position: relative;
  overflow: hidden;
  display: inline-flex;
  align-items: center;
  gap: .9rem;
  padding: 1.1rem 2.2rem;
  border: 1px solid var(--ink);
  border-radius: 999px;
  background: var(--ink);
  color: var(--paper);
  font: inherit;
  font-size: 1rem;
  letter-spacing: .02em;
  cursor: pointer;
  isolation: isolate;
  transition: color .5s var(--ease);
}

button::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: -1;
  background: var(--accent);
  border-radius: inherit;
  transform: translateY(101%);
  transition: transform .6s var(--ease);
}

button::after {
  content: "\2192";
  transition: transform .5s var(--ease);
}

button:hover { color: var(--ink); }
button:hover::before { transform: none; }
button:hover::after { transform: translateX(.35rem); }

/* ---------- Responsive & motion ---------- */
@media (max-width: 640px) {
  .site-header::before { font-size: .85rem; }
  .nav { gap: .9rem; font-size: .7rem; }
  form { grid-template-columns: 1fr; }
  main > p { margin-left: 0; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation: none !important;
    transition: none !important;
  }
}