/* Leandro de Medeiros — portfolio
   Motif: layout-grid columns behind the hero, the structure designers work on. */

:root {
  --paper: #F3F5F7;
  --surface: #FFFFFF;
  --ink: #13233A;
  --muted: #566376;
  --rule: #D3DAE2;
  --ledger: #2447B3;
  --ledger-ink: #FFFFFF;
  --ledger-soft: #E6EBF7;
  --line: rgba(19, 35, 58, .09);
  --col: rgba(36, 71, 179, .045);
  --sel: #2F6BEA;
  --sel-ink: #FFFFFF;
  --cursor: #C2255C;
  --display: "Bricolage Grotesque", "Segoe UI", system-ui, sans-serif;
  --text: "Source Serif 4", Georgia, serif;
  --wrap: 1120px;
  --gutter: clamp(16px, 4vw, 40px);
  --radius: 10px;
}
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --paper: #0F1722;
    --surface: #152131;
    --ink: #E7ECF2;
    --muted: #9AA7B6;
    --rule: #26354A;
    --ledger: #93A9F2;
    --ledger-ink: #0F1722;
    --ledger-soft: #1A2440;
    --line: rgba(231, 236, 242, .07);
    --col: rgba(147, 169, 242, .035);
    --sel: #6E9BFF;
    --sel-ink: #0F1722;
    --cursor: #E64980;
    color-scheme: dark;
  }
}
:root[data-theme="dark"] {
  --paper: #0F1722; --surface: #152131; --ink: #E7ECF2; --muted: #9AA7B6;
  --rule: #26354A; --ledger: #93A9F2; --ledger-ink: #0F1722; --ledger-soft: #1A2440;
  --line: rgba(231, 236, 242, .07);
  --col: rgba(147, 169, 242, .035);
  --sel: #6E9BFF; --sel-ink: #0F1722; --cursor: #E64980;
  color-scheme: dark;
}

*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } }
body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--text);
  font-size: 1.125rem;
  line-height: 1.6;
  text-rendering: optimizeLegibility;
}
img { max-width: 100%; height: auto; display: block; }
a { color: inherit; text-decoration-color: var(--ledger); text-decoration-thickness: 2px; text-underline-offset: 3px; }
a:hover { color: var(--ledger); }
:focus-visible { outline: 3px solid var(--ledger); outline-offset: 3px; border-radius: 4px; }
h1, h2, h3 { font-family: var(--display); line-height: 1.12; margin: 0; letter-spacing: -0.01em; }
p { margin: 0 0 1em; }

.wrap { width: 100%; max-width: var(--wrap); margin: 0 auto; padding: 0 var(--gutter); }
.skip { position: absolute; left: -999px; top: 8px; background: var(--ink); color: var(--paper); padding: 8px 12px; z-index: 10; }
.skip:focus { left: 8px; }

/* Header */
.site-header { border-bottom: 1px solid var(--rule); background: var(--paper); position: sticky; top: env(safe-area-inset-top, 0px); z-index: 5; }
.header-row { display: grid; grid-template-columns: auto 1fr auto; grid-template-areas: "brand nav toggle"; align-items: center; gap: 8px 20px; min-height: 64px; padding-top: 8px; padding-bottom: 8px; }
.wordmark { grid-area: brand; }
.site-header nav { grid-area: nav; justify-self: end; }
.theme-toggle { grid-area: toggle; }
.wordmark { font-family: var(--display); font-weight: 600; font-size: 1.05rem; text-decoration: none; }
.site-header ul { list-style: none; display: flex; flex-wrap: wrap; gap: 4px 20px; margin: 0; padding: 0; font-family: var(--display); font-size: .95rem; }
.site-header nav a { text-decoration: none; color: var(--muted); }
.site-header nav a:hover { color: var(--ink); }
.site-header .lang { color: var(--ledger); font-weight: 600; }

/* Buttons */
.btn {
  display: inline-block; font-family: var(--display); font-weight: 600; font-size: 1rem;
  background: var(--ledger); color: var(--ledger-ink); text-decoration: none;
  padding: 12px 20px; border-radius: 999px; border: 2px solid var(--ledger);
}
.btn:hover { color: var(--ledger-ink); filter: brightness(1.08); }
.btn-quiet { background: transparent; color: var(--ink); border-color: var(--rule); }
.btn-quiet:hover { color: var(--ink); border-color: var(--ink); filter: none; }

/* Hero: layout-grid columns, like a design canvas */
.hero {
  background-color: var(--surface);
  border-bottom: 1px solid var(--rule);
  padding-block: clamp(56px, 9vw, 120px);
  overflow: hidden;
}
.hero-inner { --cols: 12; --col-gap: 24px; position: relative; display: grid; grid-template-columns: minmax(0, 1fr) auto; gap: clamp(32px, 5vw, 72px); align-items: center; }
.hero-inner::before {
  content: ""; position: absolute; z-index: 0; pointer-events: none;
  top: -200px; bottom: -200px; left: var(--gutter); right: var(--gutter);
  background-image: repeating-linear-gradient(to right,
    var(--col) 0, var(--col) calc((100% - (var(--cols) - 1) * var(--col-gap)) / var(--cols)),
    transparent calc((100% - (var(--cols) - 1) * var(--col-gap)) / var(--cols)),
    transparent calc((100% - (var(--cols) - 1) * var(--col-gap)) / var(--cols) + var(--col-gap)));
}
.hero-text, .canvas-photo { position: relative; z-index: 1; }
.hero-text { min-width: 0; }

/* Canvas annotations: a frame around the text, a selected image layer, a collaborator cursor */
.hero-text::before {
  content: ""; position: absolute; inset: -22px -24px; pointer-events: none;
  border: 1.5px dashed var(--sel); opacity: .5; border-radius: 2px;
}
.frame-name, .layer-name {
  position: absolute; font-family: var(--display); font-size: .75rem; font-weight: 500; line-height: 1;
  white-space: nowrap;
}
.frame-name { top: -44px; left: -24px; color: var(--muted); }
.fn-mobile { display: none; }

.canvas-photo { margin: 0; display: grid; justify-items: center; gap: 10px; }
.selection { position: relative; outline: 1.5px solid var(--sel); outline-offset: 0; }
.layer-name { top: -20px; left: 0; color: var(--sel); }
.hero-portrait { display: block; width: clamp(200px, 22vw, 280px); aspect-ratio: 1; object-fit: cover; border-radius: 50%; }
.handle { position: absolute; width: 9px; height: 9px; background: var(--surface); border: 1.5px solid var(--sel); }
.handle.tl { top: -5px; left: -5px; } .handle.tr { top: -5px; right: -5px; }
.handle.bl { bottom: -5px; left: -5px; } .handle.br { bottom: -5px; right: -5px; }
.dimensions {
  background: var(--sel); color: var(--sel-ink); font-family: var(--display); font-size: .72rem; font-weight: 600;
  padding: 3px 7px; border-radius: 4px; font-variant-numeric: tabular-nums; line-height: 1.2;
}
.cursor { position: absolute; left: 26px; bottom: 10%; display: flex; align-items: flex-start; pointer-events: none; }
.cursor svg { fill: var(--cursor); stroke: var(--surface); stroke-width: 1.2; flex: none; filter: drop-shadow(0 1px 1px rgba(0, 0, 0, .18)); }
.cursor-tag {
  margin: 14px 0 0 -2px; background: var(--cursor); color: #FFFFFF; font-family: var(--display);
  font-size: .75rem; font-weight: 600; padding: 3px 8px; border-radius: 4px 10px 10px 10px; line-height: 1.2;
}
@media (prefers-reduced-motion: no-preference) {
  .cursor { animation: cursor-arrive 1.1s cubic-bezier(.2, .7, .2, 1) .5s both; }
  @keyframes cursor-arrive { from { transform: translate(-70px, 60px); opacity: 0; } to { transform: none; opacity: 1; } }
}
.hero h1 {
  font-size: clamp(2.3rem, 5.6vw, 4.5rem);
  line-height: 1.05;
  font-weight: 600;
  letter-spacing: -0.025em;
  max-width: 15ch;
  margin-bottom: 1.6rem;
  text-wrap: balance;
  font-variation-settings: "opsz" 96;
}
.hero-intro { max-width: 60ch; font-size: clamp(1.1rem, 1.6vw, 1.3rem); color: var(--ink); }
.hero-intro p:last-child { margin-bottom: 0; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 2rem; }

/* Sections */
section { scroll-margin-top: 80px; }
.section-title { font-size: clamp(1.6rem, 3vw, 2.2rem); font-weight: 600; margin-bottom: 2rem; }
.work, .ai, .career, .about { padding: clamp(56px, 9vw, 112px) 0; }
.ai, .about { border-top: 1px solid var(--rule); }
.career { border-top: 1px solid var(--rule); background: var(--surface); }

/* Case list */
.case-list { list-style: none; margin: 0; padding: 0; display: grid; gap: clamp(40px, 6vw, 72px); }
.case-link { display: grid; grid-template-columns: minmax(0, 6fr) minmax(0, 5fr); gap: clamp(20px, 4vw, 48px); align-items: center; text-decoration: none; }
.case-cover { border-radius: var(--radius); overflow: hidden; border: 1px solid var(--rule); background: var(--surface); }
.case-cover img, .case-cover svg { width: 100%; height: auto; display: block; }
.case-cover img { aspect-ratio: 16 / 10; object-fit: cover; object-position: top left; }
.case-meta { font-family: var(--display); font-size: .95rem; color: var(--muted); margin-bottom: .5rem; }
.case-meta a { color: var(--muted); }
.case-text h3 { font-size: clamp(1.45rem, 2.6vw, 2rem); font-weight: 600; margin-bottom: .75rem; }
.case-link:hover h3 { color: var(--ledger); }
.case-summary { color: var(--muted); }
.case-metric { font-family: var(--display); border-top: 1px solid var(--rule); padding-top: .9rem; margin-top: 1.2rem; }
.case-metric .num, .results .num { font-weight: 700; color: var(--ledger); font-variant-numeric: tabular-nums lining-nums; }
.case-metric .num { font-size: 1.5rem; margin-right: .35rem; }
.case-cta { font-family: var(--display); font-weight: 600; text-decoration: underline; text-decoration-color: var(--ledger); text-decoration-thickness: 2px; text-underline-offset: 4px; }

/* Cover schematic colors */
.cover .c-bg { fill: var(--ledger-soft); }
.cover .c-card { fill: var(--surface); stroke: var(--rule); }
.cover .c-ink { fill: var(--ink); opacity: .85; }
.cover .c-soft { fill: var(--rule); }
.cover .c-accent { fill: var(--ledger); }
.cover .c-rule, .cover .c-line { stroke: var(--rule); stroke-width: 2; fill: none; }
.cover .c-line { stroke: var(--ledger); }

/* AI */
.ai-grid { display: grid; grid-template-columns: minmax(0, 5fr) minmax(0, 6fr); gap: clamp(32px, 6vw, 80px); }
.practices { list-style: none; margin: 0; padding: 0; border-top: 2px solid var(--ink); }
.practices li { padding: 1.4rem 0; border-bottom: 1px solid var(--rule); }
.practices h3 { font-size: 1.25rem; font-weight: 600; margin-bottom: .4rem; }
.practices p { margin: 0; color: var(--muted); }

/* Career */
.timeline { list-style: none; margin: 0; padding: 0; border-top: 2px solid var(--ink); }
.timeline li { display: grid; grid-template-columns: 11rem minmax(0, 1fr); gap: 24px; padding: 1.4rem 0; border-bottom: 1px solid var(--rule); }
.timeline .years { font-family: var(--display); color: var(--muted); font-variant-numeric: tabular-nums; padding-top: .15rem; }
.timeline h3 { font-size: 1.25rem; font-weight: 600; margin-bottom: .35rem; }
.timeline p { margin: 0; color: var(--muted); max-width: 70ch; }

/* About */
.about-text { max-width: 760px; }
.about-cols { display: grid; grid-template-columns: 1fr 1fr; gap: 32px; margin-top: 2rem; }
.about-cols h3 { font-size: 1.1rem; font-weight: 600; margin-bottom: .6rem; }
.about-cols ul { list-style: none; margin: 0; padding: 0; color: var(--muted); font-size: 1rem; }
.about-cols li { padding: .45rem 0; border-top: 1px solid var(--rule); }

/* Prose */
.prose { max-width: 66ch; }
.prose h2 { font-size: 1.6rem; font-weight: 600; margin: 2.6rem 0 1rem; }
.prose h3 { font-size: 1.2rem; font-weight: 600; margin: 2rem 0 .6rem; }
.prose ul, .prose ol { padding-left: 1.2em; }
.prose li { margin-bottom: .5em; }
.prose strong { font-weight: 600; }
.prose blockquote { margin: 1.6rem 0; padding-left: 1.2rem; border-left: 3px solid var(--ledger); font-style: italic; }

/* Case page */
.case-head { background: var(--surface); border-bottom: 1px solid var(--rule); padding: clamp(40px, 7vw, 88px) 0 clamp(32px, 5vw, 56px); }
.case-head h1 { font-size: clamp(2rem, 4.6vw, 3.4rem); font-weight: 600; letter-spacing: -0.02em; max-width: 22ch; margin-bottom: 1.2rem; }
.case-lede { font-size: clamp(1.15rem, 1.8vw, 1.35rem); max-width: 60ch; color: var(--muted); }
.facts { display: grid; grid-template-columns: repeat(auto-fit, minmax(160px, 1fr)); gap: 0 24px; margin: 2rem 0 0; border-top: 2px solid var(--ink); }
.facts div { padding: .9rem 0; border-bottom: 1px solid var(--rule); }
.facts dt { font-family: var(--display); font-size: .9rem; color: var(--muted); }
.facts dd { margin: 0; font-family: var(--display); font-weight: 500; }
.case-hero-figure { margin: clamp(32px, 5vw, 56px) 0 0; }
.case-hero-figure figcaption { font-family: var(--display); font-size: .95rem; color: var(--muted); margin-top: .7rem; max-width: 70ch; }
.case-cover-lg img { aspect-ratio: auto; }
.case-hero-figure.is-small { max-width: 720px; }
.shot img[src*="mandala"] { max-width: 720px; width: 100%; }
.results ul { list-style: none; margin: clamp(32px, 5vw, 56px) 0 0; padding: 0; display: grid; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); border-top: 2px solid var(--ink); }
.results li { padding: 1.2rem 1.2rem 1.2rem 0; border-bottom: 1px solid var(--rule); display: flex; flex-direction: column; gap: .3rem; }
.results .num { font-family: var(--display); font-size: clamp(1.9rem, 3.4vw, 2.6rem); line-height: 1.05; }
.results .label { font-family: var(--display); color: var(--muted); font-size: .98rem; line-height: 1.35; max-width: 26ch; }
.case-body { padding: clamp(24px, 4vw, 48px) 0 clamp(48px, 7vw, 88px); }
.shot { margin: 2rem 0; }
.shot img { border-radius: var(--radius); border: 1px solid var(--rule); }
.shot figcaption { font-family: var(--display); font-size: .95rem; color: var(--muted); margin-top: .6rem; }
.todo { margin: 1.6rem 0; padding: 1rem 1.2rem; border: 2px dashed #C58A00; border-radius: var(--radius); background: rgba(255, 196, 0, .08); font-family: var(--display); font-size: .98rem; }
.todo strong { display: block; color: #9A6B00; margin-bottom: .35rem; }
.todo p:last-child { margin-bottom: 0; }
@media (prefers-color-scheme: dark) { :root:not([data-theme="light"]) .todo strong { color: #F2C14E; } }
:root[data-theme="dark"] .todo strong { color: #F2C14E; }

.case-next { padding-bottom: clamp(56px, 8vw, 96px); }
.case-next a { display: block; border-top: 2px solid var(--ink); padding-top: 1.2rem; text-decoration: none; }
.case-next .case-meta { display: block; }
.next-title { font-family: var(--display); font-weight: 600; font-size: clamp(1.4rem, 3vw, 2rem); }
.case-next a:hover .next-title { color: var(--ledger); }

.simple-page { padding: 96px var(--gutter); }
.simple-page h1 { font-size: 3rem; margin-bottom: 1rem; }

/* Footer */
.site-footer { background: var(--ink); color: var(--paper); padding: clamp(56px, 8vw, 96px) 0 32px; }
.site-footer a { color: var(--paper); }
.site-footer a:hover { color: var(--ledger-soft); }
.footer-grid { display: grid; grid-template-columns: minmax(0, 5fr) minmax(0, 6fr); gap: 40px; }
.site-footer h2 { font-size: clamp(1.8rem, 3.4vw, 2.6rem); font-weight: 600; margin-bottom: 1rem; }
.site-footer p { opacity: .8; max-width: 44ch; }
.contact-list { list-style: none; margin: 0; padding: 0; font-family: var(--display); font-size: 1.1rem; }
.contact-list li { padding: .7rem 0; border-bottom: 1px solid rgba(255, 255, 255, .18); overflow-wrap: anywhere; }
.colophon { margin-top: 56px; font-family: var(--display); font-size: .9rem; opacity: .65; }
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) .site-footer { background: #0A1018; color: var(--ink); border-top: 1px solid var(--rule); }
  :root:not([data-theme="light"]) .site-footer a { color: var(--ink); }
}
:root[data-theme="dark"] .site-footer { background: #0A1018; color: var(--ink); border-top: 1px solid var(--rule); }
:root[data-theme="dark"] .site-footer a { color: var(--ink); }

/* Theme toggle */
.site-header nav li { display: flex; align-items: center; }
.theme-toggle {
  display: inline-grid; place-items: center; width: 36px; height: 36px; padding: 0; margin: -6px 0;
  background: transparent; color: var(--muted); border: 1px solid var(--rule); border-radius: 999px; cursor: pointer;
}
.theme-toggle:hover { color: var(--ink); border-color: var(--ink); }
.theme-toggle svg { width: 18px; height: 18px; fill: none; stroke: currentColor; stroke-width: 1.8; stroke-linecap: round; }
.theme-toggle .icon-sun { display: none; }
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) .theme-toggle .icon-sun { display: block; }
  :root:not([data-theme="light"]) .theme-toggle .icon-moon { display: none; }
}
:root[data-theme="dark"] .theme-toggle .icon-sun { display: block; }
:root[data-theme="dark"] .theme-toggle .icon-moon { display: none; }

/* Responsive */
@media (max-width: 860px) {
  .case-link, .ai-grid, .footer-grid, .hero-inner { grid-template-columns: 1fr; }
  .canvas-photo { order: -1; justify-items: start; margin-top: 20px; }
  .hero-portrait { width: 140px; }
  .cursor { left: 168px; bottom: 34%; }
  .hero-text { margin-top: 28px; }
  .hero-text::before { inset: -18px -10px; }
  .frame-name { top: -36px; left: -10px; }
  .fn-desktop { display: none; } .fn-mobile { display: inline; }
  .hero-inner { --cols: 4; --col-gap: 16px; }
  .timeline li { grid-template-columns: 1fr; gap: 4px; }
}
@media (max-width: 520px) {
  body { font-size: 1.0625rem; }
  .about-cols { grid-template-columns: 1fr; }
  .header-row { grid-template-columns: 1fr auto; grid-template-areas: "brand toggle" "nav nav"; row-gap: 4px; }
  .site-header nav { justify-self: stretch; }
  .site-header ul { flex-wrap: nowrap; justify-content: space-between; gap: 8px; font-size: .9rem; }
  .theme-toggle { width: 32px; height: 32px; }
}
@media (max-width: 380px) {
  .site-header ul { font-size: .84rem; gap: 4px; }
}
@media (max-width: 340px) {
  .site-header .nav-cv { display: none; }
}