/* Andrea Ragalzi portfolio — mobile-first */
:root {
  --background: #09100c;
  --background-raised: #0d1510;
  --surface: #101712;
  --text: #edf2ef;
  --muted: #a8b3ac;
  --quiet: #829087;
  --green: #7bd39a;
  --silver: #d8deda;
  --silver-path-opacity: 0.72;
  --line: rgba(216, 222, 218, 0.14);
  --hover: rgba(216, 222, 218, 0.045);
  --space-1: 0.25rem;
  --space-2: 0.5rem;
  --space-3: 0.75rem;
  --space-4: 1rem;
  --space-5: 1.5rem;
  --space-6: 2rem;
  --space-7: 3rem;
  --space-8: 4rem;
  --content-width: 760px;
  --page-gutter: var(--space-4);
  --radius: 0.875rem;
}

* {
  box-sizing: border-box;
}

html {
  color-scheme: dark;
  scroll-behavior: smooth;
  scroll-padding-top: 1rem;
}

body {
  min-width: 20rem;
  margin: 0;
  overflow-wrap: break-word;
  background:
    radial-gradient(circle at 14% 0%, rgba(123, 211, 154, 0.055), transparent 24rem),
    var(--background);
  color: var(--text);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  line-height: 1.65;
  text-rendering: optimizeLegibility;
}

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

button,
a {
  -webkit-tap-highlight-color: transparent;
}

::selection {
  background: var(--silver);
  color: #07100a;
}

:focus-visible {
  outline: 0.1875rem solid var(--green);
  outline-offset: 0.25rem;
  border-radius: 0.25rem;
}

.visually-hidden {
  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: -5rem;
  left: 1rem;
  z-index: 100;
  min-height: 2.75rem;
  padding: 0.65rem 0.9rem;
  border-radius: 0.5rem;
  background: var(--text);
  color: var(--background);
  font-weight: 750;
}

.skip-link:focus {
  top: 1rem;
}

.page-shell {
  min-height: 100vh;
}

.profile-panel {
  position: relative;
  isolation: isolate;
  overflow: hidden;
  border-bottom: 1px solid var(--line);
  background:
    radial-gradient(circle at 92% 0%, rgba(216, 222, 218, 0.06), transparent 16rem),
    radial-gradient(ellipse at 8% 100%, rgba(123, 211, 154, 0.035), transparent 22rem),
    linear-gradient(180deg, var(--background-raised), var(--background));
}

.profile-panel::before {
  content: "";
  position: absolute;
  top: 64%;
  left: -22%;
  z-index: 0;
  width: 148%;
  height: clamp(5rem, 18vw, 10rem);
  border-top: 1px solid rgba(216, 222, 218, 0.2);
  border-radius: 50%;
  background: radial-gradient(ellipse at 50% 0%, rgba(216, 222, 218, 0.1), rgba(216, 222, 218, 0.035) 28%, rgba(123, 211, 154, 0.018) 46%, transparent 70%);
  box-shadow: 0 -0.65rem 1.8rem rgba(216, 222, 218, 0.035);
  opacity: var(--silver-path-opacity);
  pointer-events: none;
  transform: translateY(-50%) rotate(-8deg);
  transform-origin: center;
}

.profile-panel__inner,
.content__inner {
  width: min(calc(100% - (2 * var(--page-gutter))), 45rem);
  margin-inline: auto;
}

.profile-panel__inner {
  position: relative;
  z-index: 1;
  padding-block: var(--space-6) var(--space-4);
}

.eyebrow {
  margin: 0 0 0.55rem;
  color: var(--silver);
  font-size: 0.72rem;
  font-weight: 800;
  letter-spacing: 0.16em;
  text-transform: uppercase;
}

h1,
h2,
h3,
p {
  margin-top: 0;
}

h1 {
  max-width: 11ch;
  margin-bottom: 0.75rem;
  font-size: clamp(2.65rem, 13.5vw, 4.8rem);
  line-height: 0.96;
  letter-spacing: -0.068em;
  text-wrap: balance;
}

.role-summary {
  max-width: 31rem;
  margin-bottom: 0;
  color: var(--muted);
  font-size: clamp(0.98rem, 3.8vw, 1.075rem);
}

.section-nav {
  display: flex;
  gap: 0;
  margin-top: var(--space-5);
  overflow-x: auto;
  overscroll-behavior-inline: contain;
  scrollbar-width: none;
}

.section-nav::-webkit-scrollbar {
  display: none;
}

.section-nav a,
.profile-links a,
.contact-links a,
.project-links a,
.section-actions a {
  min-height: 2.75rem;
  display: inline-flex;
  align-items: center;
}

.section-nav a {
  position: relative;
  flex: 0 0 auto;
  padding-inline: var(--space-2);
  border: 0;
  border-radius: 0;
  background: transparent;
  color: var(--muted);
  font-size: 0.76rem;
  font-weight: 800;
  letter-spacing: 0.11em;
  white-space: nowrap;
  text-transform: uppercase;
}

.section-nav a:hover {
  color: var(--silver);
}

.section-nav a::after {
  content: "";
  position: absolute;
  right: var(--space-2);
  bottom: 0;
  left: var(--space-2);
  height: 2px;
  background: transparent;
}

.section-nav a[aria-current="true"] {
  color: var(--text);
}

.section-nav a[aria-current="true"]::after {
  background: var(--green);
}

.profile-links {
  display: flex;
  flex-wrap: wrap;
  gap: 0.25rem 1rem;
  margin-top: var(--space-4);
}

.profile-links a {
  color: var(--silver);
  font-size: 0.88rem;
  font-weight: 680;
}

.profile-links a:hover,
.text-link:hover,
.external-link:hover,
.project-links a:hover,
.contact-links a:hover,
.arrow-link:hover {
  color: var(--green);
}

.content {
  min-width: 0;
}

.content__inner {
  padding-block: var(--space-5) var(--space-6);
}

section {
  min-width: 0;
  padding-bottom: 0;
  scroll-margin-top: 1rem;
}

section + section {
  margin-top: var(--space-6);
  padding-top: var(--space-6);
  border-top: 1px solid var(--line);
}

.section-title {
  margin-bottom: var(--space-4);
  color: var(--silver);
  font-size: 0.76rem;
  font-weight: 800;
  letter-spacing: 0.15em;
  text-transform: uppercase;
}

.about p {
  margin-bottom: 1.05rem;
  color: var(--muted);
}

.about p:last-child {
  margin-bottom: 0;
}

.about strong,
.text-link {
  color: var(--silver);
  font-weight: 660;
}

.text-link {
  text-decoration: underline;
  text-decoration-thickness: 0.08em;
  text-underline-offset: 0.18em;
}

.entry-list,
.project-list {
  display: grid;
}

.entry,
.project-entry {
  min-width: 0;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 0.35rem;
  margin-inline: -0.875rem;
  padding: var(--space-3) 0.875rem;
  border-radius: 0.625rem;
  transition: background-color 160ms ease;
}

.entry:hover,
.project-entry:hover {
  background: var(--hover);
}

.entry__period {
  margin-bottom: 0;
  color: var(--quiet);
  font-size: 0.73rem;
  font-weight: 720;
  letter-spacing: 0.045em;
  text-transform: uppercase;
}

.entry__content {
  min-width: 0;
}

.entry__content h3,
.featured-project h3 {
  margin-bottom: 0.55rem;
  font-size: 1.08rem;
  letter-spacing: -0.025em;
}

.entry__content p {
  margin-bottom: 0.8rem;
  color: var(--muted);
  font-size: 0.94rem;
}

.external-link {
  display: inline;
  color: var(--silver);
}

.external-link::after {
  content: "↗";
  display: inline-block;
  margin-left: 0.35rem;
  color: var(--green);
  font-size: 0.78em;
  transition: transform 160ms ease;
}

.entry:hover .external-link::after,
.project-entry:hover .external-link::after,
.featured-project:hover .external-link::after {
  transform: translate(0.125rem, -0.125rem);
}

.section-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.25rem 1rem;
  margin-top: var(--space-3);
}

.arrow-link {
  color: var(--silver);
  font-size: 0.9rem;
  font-weight: 720;
}

.arrow-link::after {
  content: "↗";
  margin-left: 0.4rem;
  color: var(--green);
}

.featured-project {
  min-width: 0;
  margin-bottom: var(--space-5);
  padding: var(--space-4);
  border: 1px solid rgba(216, 222, 218, 0.18);
  border-radius: var(--radius);
  background:
    radial-gradient(circle at 96% 0%, rgba(216, 222, 218, 0.055), transparent 16rem),
    radial-gradient(circle at 80% 20%, rgba(123, 211, 154, 0.045), transparent 14rem),
    rgba(216, 222, 218, 0.02);
  transition: background-color 160ms ease, border-color 160ms ease;
}

.featured-project:hover {
  border-color: rgba(216, 222, 218, 0.24);
}

.featured-project__label {
  margin-bottom: 0.65rem;
  color: var(--green);
  font-size: 0.69rem;
  font-weight: 800;
  letter-spacing: 0.135em;
  text-transform: uppercase;
}

.featured-project h3 {
  font-size: clamp(1.45rem, 7.5vw, 1.95rem);
  letter-spacing: -0.04em;
}

.featured-project__summary {
  margin-bottom: 0;
  color: var(--muted);
  font-size: 0.95rem;
}

.project-links {
  display: flex;
  flex-wrap: wrap;
  gap: 0.25rem 1rem;
  margin-top: 0.8rem;
}

.project-links a {
  color: var(--silver);
  font-size: 0.85rem;
  font-weight: 680;
}

.contact-copy {
  max-width: 35rem;
  color: var(--muted);
}

.contact-links {
  display: flex;
  flex-wrap: wrap;
  gap: 0.25rem 1.15rem;
  margin-top: 1.1rem;
}

.contact-links a {
  color: var(--silver);
  font-weight: 680;
}

footer {
  padding-top: 1.5rem;
  color: var(--quiet);
  font-size: 0.78rem;
}

footer p {
  margin-bottom: 0.3rem;
}

@media (min-width: 43.75rem) {
  .entry,
  .project-entry {
    grid-template-columns: 8.5rem minmax(0, 1fr);
    gap: 1.25rem;
    margin-inline: -1.125rem;
    padding: var(--space-3) 1.125rem;
  }

  .entry__period {
    padding-top: 0.2rem;
  }

}

@media (min-width: 60rem) {
  .page-shell {
    display: grid;
    grid-template-columns: minmax(22.5rem, 38%) minmax(0, 1fr);
  }

  .profile-panel {
    position: sticky;
    top: 0;
    height: 100vh;
    min-height: 40rem;
    display: flex;
    align-items: center;
    border-right: 1px solid rgba(255, 255, 255, 0.06);
    border-bottom: 0;
  }

  .profile-panel__inner {
    width: min(100%, 38.75rem);
    margin-left: auto;
    padding: 3.25rem clamp(2.25rem, 5vw, 5rem);
  }

  h1 {
    font-size: clamp(3.35rem, 5.7vw, 5.8rem);
  }

  .section-nav {
    display: grid;
    grid-template-columns: 1fr;
    gap: 0.15rem;
    width: max-content;
    margin-top: 2rem;
    overflow: visible;
  }

  .section-nav a {
    min-width: 8rem;
    padding-inline: 2.25rem 0;
  }

  .section-nav a::before {
    content: "";
    position: absolute;
    left: 0;
    top: 50%;
    width: 1.25rem;
    height: 1px;
    background: rgba(216, 222, 218, 0.3);
    transition: width 160ms ease, background-color 160ms ease;
  }

  .section-nav a::after {
    display: none;
  }

  .section-nav a[aria-current="true"]::before {
    width: 1.75rem;
    background: var(--green);
  }

  .content__inner {
    width: min(calc(100% - 3.5rem), var(--content-width));
    padding-block: var(--space-7) 2.5rem;
  }

  section {
    scroll-margin-top: 2rem;
  }

  section + section {
    margin-top: var(--space-7);
    padding-top: var(--space-7);
  }
}

@media (min-width: 60rem) and (max-height: 40rem) {
  .profile-panel {
    min-height: 0;
    overflow-y: auto;
  }
}

@media (min-width: 90rem) {
  .page-shell {
    grid-template-columns: minmax(32rem, 38%) minmax(0, 1fr);
  }

  .content__inner {
    width: min(calc(100% - 5rem), var(--content-width));
  }
}

@media (hover: none) {
  .entry:hover,
  .project-entry:hover {
    background: transparent;
  }
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  *,
  *::before,
  *::after {
    scroll-behavior: auto !important;
    transition-duration: 0.01ms !important;
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
  }
}