/* Greater Than Jargon: site styles. Mobile-first; breakpoints in em. */

/* Fonts: Google Fonts files (latin subset) hosted here so pages don't wait on a
   third-party stylesheet. Both are variable fonts. */
@font-face {
  font-family: "JetBrains Mono";
  font-style: normal;
  font-weight: 400 700;
  font-display: swap;
  src: url("../fonts/jetbrains-mono.woff2") format("woff2");
  unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC, U+0304, U+0308, U+0329, U+2000-206F, U+20AC, U+2122, U+2191, U+2193, U+2212, U+2215, U+FEFF, U+FFFD;
}
@font-face {
  font-family: "Inter";
  font-style: normal;
  font-weight: 400 600;
  font-display: swap;
  src: url("../fonts/inter.woff2") format("woff2");
  unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC, U+0304, U+0308, U+0329, U+2000-206F, U+20AC, U+2122, U+2191, U+2193, U+2212, U+2215, U+FEFF, U+FFFD;
}

:root {
  /* Colors (from the brief) */
  --color-bg: #0B1A33;          /* PLACEHOLDER: swap for the exact logo navy */
  --color-surface: #14264A;
  --color-text: #EDEBE6;        /* off-white, never pure white */
  --color-text-muted: #B8BCC6;
  --color-magenta: #FF00FF;     /* RESERVED: logo ">" and CTA buttons only */
  --color-cyan: #00FFFF;        /* logo "jargon", links, card glow, button hover */
  --color-btn-text: #0B1A33;
  --color-border: #3A4C70;
  --color-error: #FF9C9C;

  /* Type */
  --font-mono: 'JetBrains Mono', ui-monospace, Consolas, monospace;
  --font-body: 'Inter', system-ui, sans-serif;
  --font-size-body: 1.125rem;   /* 18px */
  --font-size-small: 1rem;      /* floor: never below 16px */
  --font-size-h1: clamp(2rem, 1.4rem + 2.6vw, 3rem);
  --font-size-h2: clamp(1.5rem, 1.2rem + 1.2vw, 2rem);
  --line-height-body: 1.6;
  --line-height-heading: 1.2;

  /* Spacing */
  --space-sm: 0.5rem;
  --space-md: 1rem;
  --space-lg: 2rem;
  --space-xl: 4rem;

  /* Shape and depth */
  --radius: 0.75rem;
  --radius-sm: 0.375rem;
  --glow: 0 0 0 1px rgb(0 255 255 / 0.18), 0 0.5rem 2rem rgb(0 255 255 / 0.10);
  --glow-strong: 0 0 0 1px rgb(0 255 255 / 0.55), 0 0.75rem 2.5rem rgb(0 255 255 / 0.28);
  --ease: 0.25s ease;

  /* Layout */
  --container-max: 90rem;
  --gutter: clamp(1rem, 4vw, 2.5rem);
}

/* ---- Base ------------------------------------------------------------ */

html {
  background: var(--color-bg);
  color-scheme: dark;
}

body {
  display: flex;
  flex-direction: column;
  min-height: 100vh;
  min-height: 100dvh;
  background: var(--color-bg);
  color: var(--color-text);
  font-family: var(--font-body);
  font-size: var(--font-size-body);
  line-height: var(--line-height-body);
}

main {
  flex: 1;
}

h1,
h2,
h3 {
  font-family: var(--font-mono);
  font-weight: 700;
  line-height: var(--line-height-heading);
  letter-spacing: -0.02em;
}

h1 { font-size: var(--font-size-h1); }
h2 { font-size: var(--font-size-h2); }

a {
  color: var(--color-cyan);
  text-underline-offset: 0.2em;
}

a:hover {
  text-decoration-thickness: 2px;
}

:focus-visible {
  outline: 3px solid var(--color-cyan);
  outline-offset: 3px;
  border-radius: 2px;
}

::selection {
  background: var(--color-cyan);
  color: var(--color-btn-text);
}

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

.visually-hidden {
  position: absolute !important;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0 0 0 0);
  white-space: nowrap;
  border: 0;
}

.skip-link {
  position: absolute;
  top: var(--space-sm);
  left: var(--space-sm);
  z-index: 100;
  padding: var(--space-sm) var(--space-md);
  background: var(--color-cyan);
  color: var(--color-btn-text);
  font-family: var(--font-mono);
  font-weight: 700;
  border-radius: var(--radius-sm);
  transform: translateY(-200%);
}

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

/* ---- Logo ------------------------------------------------------------ */

.logo {
  font-family: var(--font-mono);
  font-weight: 700;
  color: var(--color-cyan);
  letter-spacing: -0.03em;
  line-height: 1;
  white-space: nowrap;
}

.logo-gt {
  color: var(--color-magenta);
}

/* ---- Buttons --------------------------------------------------------- */

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 2.75rem;
  padding: 0.6em 1.4em;
  background: var(--color-magenta);
  color: var(--color-btn-text);
  font-family: var(--font-mono);
  font-size: 1rem;
  font-weight: 700;
  line-height: 1.2;
  text-decoration: none;
  border-radius: var(--radius-sm);
  transition: background-color var(--ease), transform var(--ease);
}

.button:hover,
.button:focus-visible {
  background: var(--color-cyan);
  text-decoration: none;
}

.button:active {
  transform: translateY(1px);
}

.button[disabled] {
  cursor: progress;
  opacity: 0.75;
}

.button--large {
  font-size: 1.25rem;
  padding: 0.75em 1.75em;
}

/* ---- Header and nav -------------------------------------------------- */

.site-header {
  position: relative;
  border-bottom: 1px solid var(--color-border);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-md);
  min-height: 4.5rem;
}

.header-logo {
  font-size: 1.5rem;
  text-decoration: none;
  padding-block: var(--space-sm);
}

.nav-toggle {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 2.75rem;
  height: 2.75rem;
  margin-right: -0.5rem;
  color: var(--color-text);
  border-radius: var(--radius-sm);
}

.nav-toggle .icon-close,
.nav-toggle[aria-expanded="true"] .icon-open {
  display: none;
}

.nav-toggle[aria-expanded="true"] .icon-close {
  display: block;
}

/* Without JS the toggle can't work, so show the links inline. */
html:not(.js) .nav-toggle {
  display: none;
}

.site-nav {
  display: none;
}

html:not(.js) .site-nav,
.site-nav.is-open {
  display: block;
}

.site-nav.is-open {
  position: absolute;
  top: 100%;
  left: 0;
  right: 0;
  z-index: 50;
  background: var(--color-bg);
  border-bottom: 1px solid var(--color-border);
  box-shadow: 0 1rem 2rem rgb(0 0 0 / 0.35);
}

.nav-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
  padding: var(--space-md) var(--gutter) var(--space-lg);
}

.nav-list a:not(.button) {
  display: block;
  padding: var(--space-sm) 0;
  color: var(--color-text);
  font-family: var(--font-mono);
  font-size: 1.125rem;
  text-decoration: none;
}

.nav-list a:not(.button):hover,
.nav-list a:not(.button)[aria-current="page"] {
  color: var(--color-cyan);
}

.nav-list a:not(.button)[aria-current="page"] {
  text-decoration: underline;
  text-decoration-thickness: 2px;
  text-underline-offset: 0.35em;
}

.nav-list .button {
  margin-top: var(--space-sm);
  width: 100%;
}

html:not(.js) .nav-list {
  flex-direction: row;
  flex-wrap: wrap;
  align-items: center;
  gap: var(--space-md);
  padding: 0;
}

@media (min-width: 48em) {
  .nav-toggle {
    display: none;
  }

  .site-nav,
  .site-nav.is-open {
    display: block;
    position: static;
    background: none;
    border: 0;
    box-shadow: none;
  }

  .nav-list,
  html:not(.js) .nav-list {
    flex-direction: row;
    align-items: center;
    gap: var(--space-lg);
    padding: 0;
  }

  .nav-list .button {
    margin-top: 0;
    width: auto;
  }
}

/* ---- Footer ---------------------------------------------------------- */

.site-footer {
  border-top: 1px solid var(--color-border);
  padding-block: var(--space-lg);
}

.footer-inner {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-sm) var(--space-lg);
}

.footer-logo {
  font-size: 1.25rem;
}

.copyright {
  color: var(--color-text-muted);
  font-size: var(--font-size-small);
}

/* ---- Home ------------------------------------------------------------ */

.home {
  display: grid;
  place-items: center;
  padding: var(--space-xl) var(--gutter);
}

.hero {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
}

.hero-logo {
  font-size: clamp(3.75rem, 19vw, 11rem);
  letter-spacing: -0.04em;
  text-shadow: 0 0 0.35em rgb(0 255 255 / 0.25);
}

.hero-logo .logo-gt {
  text-shadow: 0 0 0.35em rgb(255 0 255 / 0.3);
}

/* The one moment of motion: a cursor that blinks a few times, then holds. */
.cursor {
  display: inline-block;
  width: 0.08em;
  height: 0.82em;
  margin-left: 0.06em;
  vertical-align: -0.04em;
  background: var(--color-cyan);
  box-shadow: 0 0 0.3em rgb(0 255 255 / 0.5);
  animation: blink 1.1s steps(1) 6;
}

@keyframes blink {
  50% { opacity: 0; }
}

.slogan {
  margin-top: clamp(1rem, 3vw, 1.75rem);
  font-family: var(--font-mono);
  font-size: clamp(1.125rem, 0.9rem + 1.3vw, 1.75rem);
  line-height: 1.4;
  color: var(--color-text);
  text-wrap: balance;
}

.hero .button {
  margin-top: clamp(2rem, 6vw, 3.25rem);
}

/* ---- Inner page header ----------------------------------------------- */

.page-header {
  padding-top: clamp(2.5rem, 7vw, 4.5rem);
  padding-bottom: var(--space-lg);
}

.page-header .lede {
  max-width: 38em;
  margin-top: var(--space-md);
  color: var(--color-text-muted);
}

/* ---- Portfolio ------------------------------------------------------- */

.portfolio {
  padding-bottom: var(--space-xl);
}

.card-grid {
  list-style: none;
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(1.25rem, 2.5vw, 2rem);
}

@media (min-width: 36em) { .card-grid { grid-template-columns: repeat(2, 1fr); } }
@media (min-width: 60em) { .card-grid { grid-template-columns: repeat(3, 1fr); } }
@media (min-width: 80em) { .card-grid { grid-template-columns: repeat(4, 1fr); } }

.card {
  position: relative;
  display: flex;
  flex-direction: column;
  height: 100%;
  background: var(--color-surface);
  border-radius: var(--radius);
  box-shadow: var(--glow);
  transition: transform var(--ease), box-shadow var(--ease);
}

.card-image {
  width: 100%;
  aspect-ratio: 16 / 10;
  object-fit: cover;
  object-position: top;
  border-radius: var(--radius) var(--radius) 0 0;
  background: var(--color-bg);
}

.card-body {
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
  padding: var(--space-md) 1.25rem 1.25rem;
}

.card-title {
  font-size: 1.25rem;
  letter-spacing: -0.01em;
}

.card-link {
  font-size: var(--font-size-small);
  font-weight: 600;
}

/* The whole card is clickable; the link stays the one focus stop. */
.card-link::after {
  content: "";
  position: absolute;
  inset: 0;
  border-radius: var(--radius);
}

.card-link:focus-visible {
  outline: none;
}

.card:has(.card-link:focus-visible) {
  outline: 3px solid var(--color-cyan);
  outline-offset: 4px;
}

.card-soon {
  color: var(--color-text-muted);
  font-size: var(--font-size-small);
}

.card:has(.card-link):hover,
.card:has(.card-link:focus-visible) {
  transform: translateY(-4px);
  box-shadow: var(--glow-strong);
}

@media (prefers-reduced-motion: reduce) {
  .card:has(.card-link):hover,
  .card:has(.card-link:focus-visible) {
    transform: none;
  }
}

/* ---- Request form ---------------------------------------------------- */

.request {
  padding-bottom: var(--space-xl);
}

.request-form,
.form-success {
  max-width: 40rem;
}

.field {
  display: flex;
  flex-direction: column;
  gap: 0.375rem;
  margin-bottom: 1.5rem;
}

.field label {
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: 1rem;
}

.optional {
  color: var(--color-text-muted);
  font-weight: 400;
}

.hint {
  color: var(--color-text-muted);
  font-size: var(--font-size-small);
}

.field input,
.field textarea {
  width: 100%;
  min-height: 3rem;
  padding: 0.625rem 0.875rem;
  background: var(--color-surface);
  color: var(--color-text);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  font-size: var(--font-size-body);
  transition: border-color var(--ease);
}

.field input:hover,
.field textarea:hover {
  border-color: var(--color-text-muted);
}

.field input:focus-visible,
.field textarea:focus-visible {
  border-color: var(--color-cyan);
  outline-offset: 1px;
}

.field [aria-invalid="true"] {
  border-color: var(--color-error);
}

.field-error,
.form-status {
  color: var(--color-error);
  font-size: var(--font-size-small);
}

.field-error:empty,
.form-status:empty {
  display: none;
}

.field-error::before {
  content: "Error: ";
  font-weight: 600;
}

.form-actions {
  margin-top: var(--space-lg);
}

.form-status {
  margin-top: var(--space-md);
}

/* Honeypot: off-screen, not display:none, so bots still see it. */
.hp {
  position: absolute;
  left: -9999px;
  width: 1px;
  height: 1px;
  overflow: hidden;
}

.form-success {
  padding: var(--space-lg);
  background: var(--color-surface);
  border-radius: var(--radius);
  box-shadow: var(--glow);
}

.form-success p {
  margin-top: var(--space-md);
}

.form-success:focus {
  outline: none;
}

.form-success:focus-visible {
  outline: 3px solid var(--color-cyan);
}