/* ==========================================================================
   Fonts: Lexend (variable, 400–700), self-hosted
   ========================================================================== */
@font-face {
  font-family: "Lexend";
  font-style: normal;
  font-weight: 400 700;
  font-display: swap;
  src: url("/fonts/lexend-latin.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: "Lexend";
  font-style: normal;
  font-weight: 400 700;
  font-display: swap;
  src: url("/fonts/lexend-latin-ext.woff2") format("woff2");
  unicode-range: U+0100-02BA, U+02BD-02C5, U+02C7-02CC, U+02CE-02D7,
    U+02DD-02FF, U+0304, U+0308, U+0329, U+1D00-1DBF, U+1E00-1E9F,
    U+1EF2-1EFF, U+2020, U+20A0-20AB, U+20AD-20C4, U+2113, U+2C60-2C7F,
    U+A720-A7FF;
}

/* Metric-matched Arial so text doesn't jump when Lexend loads */
@font-face {
  font-family: "Lexend Fallback";
  src: local("Arial");
  ascent-override: 90.98%;
  descent-override: 22.74%;
  line-gap-override: 0%;
  size-adjust: 109.91%;
}

/* ==========================================================================
   Tokens
   ========================================================================== */
:root {
  --blue-50: #eff6ff;
  --blue-100: #dbeafe;
  --blue-300: #90c5ff;
  --blue-600: #155dfc;
  --blue-900: #1c398e;
  --neutral-50: #fafafa;
  --neutral-200: #e5e5e5;
  --neutral-600: #525252;
  --neutral-900: #171717;
  --amber-400: #fcbb00;

  --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.1), 0 2px 4px -2px rgb(0 0 0 / 0.1);
  --shadow-xl: 0 20px 25px -5px rgb(0 0 0 / 0.1), 0 8px 10px -6px rgb(0 0 0 / 0.1);
  --shadow-2xl: 0 25px 50px -12px rgb(0 0 0 / 0.25);

  --header-height: 80px;
  --content-width: 67.5rem;
}

/* ==========================================================================
   Reset
   ========================================================================== */
*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
  border: 0 solid;
}

* {
  scroll-margin-top: var(--header-height);
}

html {
  line-height: 1.5;
  -webkit-text-size-adjust: 100%;
  tab-size: 4;
  scroll-behavior: smooth;
}

body {
  margin-top: var(--header-height);
  background: white;
  color: var(--neutral-900);
  font-family: "Lexend", "Lexend Fallback", sans-serif;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

h1,
h2,
h3,
h4 {
  font-size: inherit;
  font-weight: inherit;
}

a {
  color: inherit;
  text-decoration: inherit;
}

ol,
ul {
  list-style: none;
}

img,
svg {
  display: block;
  vertical-align: middle;
}

img {
  max-width: 100%;
  height: auto;
}

small {
  font-size: 80%;
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip-path: inset(50%);
  white-space: nowrap;
  border-width: 0;
}

/* ==========================================================================
   Shared components
   ========================================================================== */
.link {
  color: var(--neutral-900);
}

.link:active {
  color: var(--amber-400);
}

.text-link {
  color: var(--blue-600);
  text-decoration: underline;
}

.underline {
  text-decoration: underline;
}

.muted {
  color: var(--neutral-600);
}

.eyebrow {
  font-size: 0.875rem;
  line-height: 1.25rem;
  font-weight: 700;
  color: var(--blue-600);
}

.button {
  padding: 0.5rem 1rem;
  border-radius: 0.5rem;
  text-align: center;
  outline: 2px solid var(--blue-600);
}

.button-primary {
  background: var(--blue-600);
  color: white;
}

.button-primary:active {
  background: var(--blue-300);
  color: var(--blue-600);
}

.button-secondary {
  background: white;
  color: var(--blue-600);
}

.button-inverted {
  background: white;
  color: var(--blue-600);
  outline-color: white;
}

@media (hover: hover) {
  .link:hover {
    color: var(--blue-600);
  }

  .button-primary:hover {
    background: white;
    color: var(--blue-600);
  }

  .button-secondary:hover,
  .button-inverted:hover {
    background: var(--blue-600);
    color: white;
  }
}

.button-row {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
}

.chips {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.chip {
  padding: 0.25rem 1rem;
  border-radius: 9999px;
  background: var(--blue-100);
  color: var(--blue-600);
  font-size: 0.875rem;
  line-height: 1.25rem;
}

.bullets {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  padding-left: 1.25rem;
  list-style: disc;
}

.card {
  display: flex;
  flex-direction: column;
  padding: 1.5rem;
  border-radius: 1rem;
  background: white;
  color: var(--neutral-900);
}

.outlined {
  border-radius: 0.5rem;
  outline: 2px solid var(--blue-600);
}

.screenshot {
  width: 100%;
  border-radius: 0.75rem;
  outline: 2px solid var(--neutral-200);
}

.card-title {
  font-size: 1.25rem;
  line-height: 1.75rem;
  font-weight: 700;
}

.subheading {
  margin-bottom: 1.5rem;
  font-size: 1.25rem;
  line-height: 1.75rem;
  font-weight: 700;
}

.grid-2 {
  display: grid;
  gap: 1rem;
}

/* ==========================================================================
   Layout: sections and headings
   ========================================================================== */
.section-inner {
  width: 100%;
  margin: 0 auto;
  padding: 3.75rem 1.25rem;
}

.section-blue {
  background: var(--blue-600);
  color: white;
}

.section-gray {
  background: var(--neutral-50);
}

.section-heading {
  margin-bottom: 1.5rem;
  font-size: 1.5rem;
  line-height: 2rem;
  text-align: center;
}

.section-heading span {
  padding: 0.25rem 0.5rem;
  border-radius: 0.25rem;
  background: var(--blue-600);
  color: white;
}

.section-blue .section-heading span {
  background: white;
  color: var(--blue-900);
}

.section-arrow {
  margin-bottom: 2.5rem;
  text-align: center;
  color: var(--blue-600);
}

.section-blue .section-arrow {
  color: inherit;
}

/* ==========================================================================
   Header and footer
   ========================================================================== */
.site-header {
  position: fixed;
  top: 0;
  z-index: 10;
  width: 100%;
  padding: 1rem 0;
  background: var(--neutral-50);
  color: var(--neutral-900);
  font-weight: 700;
  box-shadow: var(--shadow-md);
}

.site-nav {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 0.75rem;
  max-width: var(--content-width);
  margin: 0 auto;
  padding: 0 1.25rem;
}

.site-nav .home-link {
  margin-right: auto;
}

.site-nav .nav-link {
  display: none;
}

.site-footer {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 0.25rem 1rem;
  padding: 1rem 0;
  background: var(--blue-900);
  color: white;
}

/* ==========================================================================
   Hero
   ========================================================================== */
.hero {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: space-between;
  gap: 2rem;
}

.hero-text {
  width: 100%;
}

.hero h1 {
  margin-bottom: 1rem;
  font-size: 2.25rem;
  line-height: 2.5rem;
  font-weight: 700;
  text-align: center;
}

.hero h1 span {
  display: flex;
  justify-content: center;
  margin-bottom: 0.5rem;
  color: var(--blue-600);
  font-size: 1.125rem;
  line-height: 1.75rem;
}

.hero-intro,
.hero-note {
  max-width: 27.5rem;
  margin-left: auto;
  margin-right: auto;
  text-align: center;
}

.hero-intro {
  margin-top: 1.5rem;
  margin-bottom: 1.5rem;
}

.hero-note {
  margin-bottom: 2rem;
}

.hero .button-row,
.socials {
  justify-content: center;
  margin-bottom: 2rem;
}

.socials {
  display: flex;
  gap: 1rem;
}

.socials a {
  display: block;
  padding: 0.25rem;
  font-size: 2.25rem;
  line-height: 2.5rem;
}

.socials svg {
  display: inline-block;
  width: 1.25em;
  height: 1em;
  overflow: visible;
  vertical-align: -0.125em;
  fill: currentColor;
}

.hero-photo {
  width: 100%;
}

.hero-photo img {
  width: 100%;
  border: 3px solid var(--blue-600);
  border-radius: 1.5rem;
  box-shadow: var(--shadow-2xl);
}

/* ==========================================================================
   What I'm Building (studystate.us)
   ========================================================================== */
.feature {
  gap: 1.5rem;
}

.feature .screenshot {
  box-shadow: var(--shadow-xl);
}

.feature h3 {
  font-size: 2.25rem;
  line-height: 2.5rem;
  font-weight: 700;
}

.feature-summary {
  font-size: 1.125rem;
  line-height: 1.75rem;
}

.stats {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 0.75rem;
}

.stats div {
  padding: 1rem;
  border-radius: 0.75rem;
  background: var(--blue-50);
  text-align: center;
}

.stat-value {
  color: var(--blue-600);
  font-size: 1.875rem;
  line-height: 2.25rem;
  font-weight: 700;
}

.stat-label {
  color: var(--neutral-600);
  font-size: 0.875rem;
  line-height: 1.25rem;
}

.fine-print {
  color: var(--neutral-600);
  font-size: 0.875rem;
  line-height: 1.25rem;
}

/* ==========================================================================
   Other Work (projects)
   ========================================================================== */
.projects {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

.project {
  display: grid;
  align-items: center;
  gap: 1.5rem;
  padding: 1.5rem;
  border-radius: 1rem;
  outline: 2px solid var(--blue-600);
}

.project-body {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.project h3 {
  font-size: 1.5rem;
  line-height: 2rem;
  font-weight: 700;
}

.project .link {
  flex-shrink: 0;
  text-decoration: underline;
}

/* ==========================================================================
   About
   ========================================================================== */
.about-now {
  gap: 0.75rem;
  margin-bottom: 1.5rem;
}

.about-grid {
  display: grid;
  gap: 1.5rem;
}

.about-grid .card {
  gap: 1rem;
}

/* ==========================================================================
   Experience
   ========================================================================== */
.timeline {
  display: flex;
  flex-direction: column;
  gap: 2.5rem;
  margin-left: 0.5rem;
  margin-bottom: 3.75rem;
  border-left: 2px solid var(--blue-600);
}

.timeline > li {
  position: relative;
  padding-left: 2rem;
}

.timeline > li::before {
  content: "";
  position: absolute;
  left: -9px;
  top: 0.375rem;
  width: 1rem;
  height: 1rem;
  border-radius: 9999px;
  background: var(--blue-600);
  box-shadow: 0 0 0 4px white;
}

.timeline h4 {
  font-size: 1.125rem;
  line-height: 1.75rem;
  font-weight: 700;
}

.timeline .muted {
  margin-bottom: 0.5rem;
}

.timeline .bullets {
  gap: 0.25rem;
}

.roles > li {
  padding: 1.25rem;
}

.roles h4 {
  font-weight: 700;
}

.roles .date {
  color: var(--blue-600);
  font-size: 0.875rem;
  line-height: 1.25rem;
}

/* ==========================================================================
   Education
   ========================================================================== */
.schools {
  margin-bottom: 3.75rem;
}

.schools > li,
.certs > li {
  padding: 1.5rem;
  background: white;
}

.schools h3 {
  font-size: 1.125rem;
  line-height: 1.75rem;
  font-weight: 700;
}

.schools .muted,
.certs .muted {
  font-size: 0.875rem;
  line-height: 1.25rem;
}

.certs > li {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.certs h4 a {
  font-weight: 700;
}

/* ==========================================================================
   Contact
   ========================================================================== */
.contact {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 1.5rem;
  text-align: center;
}

.contact p {
  max-width: 27.5rem;
}

.contact .button-row {
  justify-content: center;
}

/* ==========================================================================
   404
   ========================================================================== */
.not-found {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  min-height: 100vh;
  padding: 0.5rem 0;
}

.not-found .home {
  margin-bottom: 0.5rem;
  color: var(--blue-600);
  font-weight: 700;
  text-decoration: underline;
}

.not-found h1 {
  margin: 0.5rem 0;
  font-size: 3rem;
  line-height: 1;
  font-weight: 700;
}

.not-found p {
  margin: 1rem 0;
  font-size: 1.25rem;
  line-height: 1.75rem;
}

.not-found .button {
  margin-top: 1.5rem;
}

/* ==========================================================================
   Breakpoints (match Tailwind sm = 640px, md = 768px)
   ========================================================================== */
@media (min-width: 40rem) {
  .button {
    padding: 0.75rem 1.5rem;
  }

  .site-nav {
    gap: 1.5rem;
  }

  .site-nav .nav-link-first {
    display: inline;
  }
}

@media (min-width: 48rem) {
  .section-inner {
    max-width: var(--content-width);
    padding: 5rem 2.5rem;
  }

  .site-nav {
    padding: 0 2.5rem;
  }

  .site-nav .nav-link {
    display: inline;
  }

  .hero {
    flex-direction: row;
    gap: 2.5rem;
  }

  .hero h1,
  .hero-intro,
  .hero-note {
    text-align: start;
  }

  .hero h1 span,
  .hero .button-row,
  .socials {
    justify-content: flex-start;
  }

  .hero-intro,
  .hero-note {
    margin-left: 0;
  }

  .hero-photo {
    max-width: 25rem;
  }

  .card {
    padding: 2.5rem;
  }

  .project {
    padding: 2rem;
  }

  .project:has(> a) {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .grid-2,
  .about-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}