/* ==========================================================================
   Patricia Avila — portfolio site
   Plain CSS, no build step. Edit the palette tokens below to retheme.
   Palette source: the standardized Light / Dark color table.
   ========================================================================== */

:root {
  /* Palette (Light) --------------------------------------------------------- */
  --color-neutral:  #E9DCC9;               /* Neutral */
  --color-primary:  #006A6F;               /* Primary — teal */
  --color-accent:   #CF9449;               /* Accent — tan/gold (decorative, not for text on light) */
  --color-inverse:  #1E2328;               /* Inverse */

  --color-bg:       #F8F3ED;               /* bg / app + page */
  --color-surface:  #F0E8DB;               /* bg / surface */
  --color-text:     #1E2328;               /* text / primary */
  --color-text-2:   rgba(30, 35, 40, 0.8); /* text / secondary (80%) */

  /* Derived tokens ---------------------------------------------------------- */
  --color-on-primary: #F8F3ED;             /* text on primary-filled areas */
  --color-ink:        #1E2328;             /* dark text on accent-filled areas */
  --color-border:     var(--color-neutral);
  --color-primary-hover: color-mix(in srgb, var(--color-primary) 80%, var(--color-text));
  --color-primary-tint:  color-mix(in srgb, var(--color-primary) 10%, var(--color-bg));

  /* Typography -------------------------------------------------------------- */
  --font-sans: "Manrope", "Helvetica Neue", Helvetica, Arial, sans-serif;
  --fs-base: 1.0625rem;   /* 17px */
  --lh-base: 1.65;
  --measure: 68ch;

  /* Layout ------------------------------------------------------------------ */
  --max-width: 1080px;
  --gutter: clamp(1.25rem, 5vw, 3rem);
  --radius: 10px;
}

@media (prefers-color-scheme: dark) {
  :root {
    /* Palette (Dark) -------------------------------------------------------- */
    --color-neutral:  #1E2328;
    --color-primary:  #7CAFAE;
    --color-accent:   #E4C49B;
    --color-inverse:  #F8F3ED;

    --color-bg:       #1E2328;
    --color-surface:  #393C3E;
    --color-text:     #F8F3ED;
    --color-text-2:   rgba(248, 243, 237, 0.8);

    --color-on-primary: #1E2328;
    --color-border:     color-mix(in srgb, var(--color-text) 18%, var(--color-bg));
    --color-primary-hover: color-mix(in srgb, var(--color-primary) 80%, var(--color-text));
    --color-primary-tint:  color-mix(in srgb, var(--color-primary) 14%, var(--color-bg));
  }
}

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

html {
  -webkit-text-size-adjust: 100%;
  scroll-behavior: smooth;
  color-scheme: light dark;
}

body {
  margin: 0;
  background: var(--color-bg);
  color: var(--color-text);
  font-family: var(--font-sans);
  font-size: var(--fs-base);
  line-height: var(--lh-base);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

h1, h2, h3, h4 {
  font-weight: 700;
  line-height: 1.15;
  letter-spacing: -0.015em;
  margin: 0 0 0.5em;
}

h1 { font-size: clamp(2rem, 5vw, 3.1rem); }
h2 { font-size: clamp(1.5rem, 3vw, 2.1rem); }
h3 { font-size: 1.2rem; }

p { margin: 0 0 1.1em; max-width: var(--measure); }

a { color: var(--color-primary); text-decoration: none; }
a:hover { color: var(--color-primary-hover); text-decoration: underline; }

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

ul, ol { padding-left: 1.2em; }
li { margin-bottom: 0.35em; }

hr { border: 0; border-top: 1px solid var(--color-border); margin: 3rem 0; }

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

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

.section { padding-block: clamp(3rem, 8vw, 5.5rem); }
.section--alt { background: var(--color-surface); }
.section--alt .card,
.section--alt .stat { background: var(--color-bg); }

.section--primary {
  background: var(--color-primary);
  color: var(--color-on-primary);
}
.section--primary a:not(.btn) { color: inherit; text-decoration: underline; }

.eyebrow {
  text-transform: uppercase;
  letter-spacing: 0.12em;
  font-size: 0.78rem;
  font-weight: 700;
  color: var(--color-primary);
  margin-bottom: 0.9rem;
}
.eyebrow::before {                       /* short rule, echoes the case-study decks */
  content: "";
  display: block;
  width: 40px;
  height: 2px;
  background: var(--color-primary);
  margin-bottom: 0.75rem;
}

.lead { font-size: 1.2rem; color: var(--color-text-2); }

.skip-link {
  position: absolute;
  left: -999px;
  top: 0;
  background: var(--color-text);
  color: var(--color-bg);
  padding: 0.6rem 1rem;
  z-index: 100;
}
.skip-link:focus { left: 0.5rem; top: 0.5rem; }

/* Header / nav -------------------------------------------------------------- */
.site-header {
  border-bottom: 1px solid var(--color-border);
  background: color-mix(in srgb, var(--color-bg) 88%, transparent);
  backdrop-filter: saturate(180%) blur(8px);
  position: sticky;
  top: 0;
  z-index: 50;
}

.site-header .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  flex-wrap: wrap;
  padding-block: 1rem;
}

.brand {
  font-weight: 700;
  font-size: 1.05rem;
  letter-spacing: -0.01em;
  color: var(--color-text);
}
.brand:hover { text-decoration: none; color: var(--color-text); }

.nav { display: flex; gap: clamp(1rem, 3vw, 2rem); flex-wrap: wrap; }
.nav a {
  color: var(--color-text-2);
  font-size: 0.95rem;
  padding-block: 0.25rem;
}
.nav a:hover { color: var(--color-text); text-decoration: none; }
.nav a[aria-current="page"] {
  color: var(--color-text);
  box-shadow: inset 0 -2px 0 var(--color-accent);
}

/* Buttons ---------------------------------------------------------------- */
.btn {
  display: inline-block;
  padding: 0.75rem 1.4rem;
  border-radius: 999px;
  font-weight: 700;
  font-size: 0.95rem;
  border: 1.5px solid var(--color-primary);
  transition: background-color 0.15s ease, color 0.15s ease, transform 0.05s ease;
}
.btn:hover { text-decoration: none; }
.btn:active { transform: translateY(1px); }

.btn--primary { background: var(--color-primary); color: var(--color-on-primary); }
.btn--primary:hover {
  background: var(--color-primary-hover);
  border-color: var(--color-primary-hover);
  color: var(--color-on-primary);
}

.btn--ghost { background: transparent; color: var(--color-primary); }
.btn--ghost:hover { background: var(--color-primary-tint); color: var(--color-primary); }

/* Buttons on a primary-filled band */
.btn--accent { background: var(--color-surface); border-color: var(--color-surface); color: var(--color-text); }
.btn--accent:hover { background: var(--color-bg); border-color: var(--color-bg); color: var(--color-text); }

.section--primary .btn--ghost { color: inherit; border-color: currentColor; }
.section--primary .btn--ghost:hover { background: color-mix(in srgb, currentColor 14%, transparent); color: inherit; }

.btn small { font-weight: 400; opacity: 0.85; margin-left: 0.35em; }

.btn-row { display: flex; flex-wrap: wrap; gap: 0.85rem; margin-top: 1.5rem; }

/* Hero ----------------------------------------------------------------------- */
.hero { padding-block: clamp(3.5rem, 10vw, 6.5rem); }
.hero h1 { max-width: 28ch; }
.hero .lead { max-width: 62ch; margin-top: 1rem; }
.hero--compact { padding-block: clamp(2.5rem, 7vw, 4.5rem) clamp(1rem, 3vw, 2rem); }
.hero--compact h1 { max-width: 30ch; }

.status {
  margin-top: 1.75rem;
  font-size: 0.95rem;
  color: var(--color-text-2);
}
.status::before {
  content: "";
  display: inline-block;
  width: 0.6rem; height: 0.6rem;
  border-radius: 50%;
  background: var(--color-accent);
  margin-right: 0.6rem;
}

/* Card grid ------------------------------------------------------------------ */
.grid {
  display: grid;
  gap: 1.5rem;
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 280px), 1fr));
  margin-top: 2.5rem;
}
.grid--2 { grid-template-columns: repeat(auto-fit, minmax(min(100%, 420px), 1fr)); }

.card {
  background: var(--color-surface);
  border-radius: var(--radius);
  padding: 1.75rem;
}
.card h3 { margin-top: 0; }
.card p:last-child { margin-bottom: 0; }
.card .tag {
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--color-primary);
  margin-bottom: 0.6rem;
}

/* Stat tiles --------------------------------------------------------------- */
.stats {
  display: grid;
  gap: 1.25rem;
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 210px), 1fr));
  margin-top: 2rem;
}
.stat {
  background: var(--color-surface);
  border-radius: var(--radius);
  padding: 1.25rem 1.4rem 1.4rem;
}
.stat .num {
  display: block;
  font-size: clamp(1.9rem, 4vw, 2.5rem);
  font-weight: 700;
  letter-spacing: -0.02em;
  line-height: 1.05;
  color: var(--color-primary);
  margin-bottom: 0.5rem;
}
.stat h3 { font-size: 1rem; margin-bottom: 0.4rem; }
.stat p { font-size: 0.93rem; color: var(--color-text-2); margin-bottom: 0.5rem; }
.stat p:last-child { margin-bottom: 0; }

/* Ruled columns (problem / role / outcomes) ----------------------------- */
.cols {
  display: grid;
  gap: 1.75rem;
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 240px), 1fr));
  margin-top: 1.75rem;
}
.col { border-left: 2px solid var(--color-primary); padding-left: 1.1rem; }
.col h3 { font-size: 1.1rem; margin-bottom: 0.4rem; }
.col p { font-size: 0.97rem; color: var(--color-text-2); }
.col p:last-child { margin-bottom: 0; }

/* Timeline ------------------------------------------------------------------ */
.timeline {
  list-style: none;
  padding: 0;
  margin: 2.5rem 0 0;
  display: grid;
  gap: 1.5rem 1.25rem;
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 138px), 1fr));
}
.timeline li {
  position: relative;
  margin: 0;
  padding-top: 1.35rem;
  border-top: 2px solid var(--color-border);
}
.timeline li::before {
  content: "";
  position: absolute;
  top: -7px; left: 0;
  width: 12px; height: 12px;
  border-radius: 50%;
  background: var(--color-accent);
}
.timeline .when {
  display: block;
  font-size: 0.74rem;
  font-weight: 700;
  letter-spacing: 0.09em;
  text-transform: uppercase;
  color: var(--color-primary);
}
.timeline .what { display: block; font-weight: 700; margin: 0.15rem 0 0.3rem; }
.timeline p { font-size: 0.9rem; color: var(--color-text-2); margin: 0; }

/* Quotes / figures / callouts ----------------------------------------------- */
.quote {
  margin: 1rem 0 0;
  padding-left: 0.9rem;
  border-left: 2px solid var(--color-accent);
  font-style: italic;
  font-size: 0.93rem;
  color: var(--color-text-2);
}
.quote cite { display: block; font-style: normal; font-size: 0.82rem; margin-top: 0.25rem; }

.pullquote {
  margin: 2.25rem 0 0;
  padding: 1.25rem 1.5rem;
  border-left: 3px solid var(--color-accent);
  background: var(--color-surface);
  border-radius: 0 var(--radius) var(--radius) 0;
  max-width: var(--measure);
}
.pullquote p { margin: 0 0 0.5em; }
.pullquote p:last-child { margin-bottom: 0; }
.pullquote cite { font-size: 0.9rem; color: var(--color-text-2); font-style: normal; }

.figure { margin: 2.25rem 0 0; }
.figure img {
  width: 100%;
  border-radius: var(--radius);
  border: 1px solid var(--color-border);
}
.figure figcaption { font-size: 0.88rem; color: var(--color-text-2); margin-top: 0.6rem; max-width: var(--measure); }
.figure--narrow { max-width: 640px; }

.facts { margin: 0.75rem 0 0; font-size: 0.95rem; }
.facts dt {
  font-size: 0.74rem;
  font-weight: 700;
  letter-spacing: 0.09em;
  text-transform: uppercase;
  color: var(--color-primary);
  margin-top: 0.85rem;
}
.facts dd { margin: 0.1rem 0 0; color: var(--color-text-2); }

.footnote { font-size: 0.9rem; color: var(--color-text-2); max-width: var(--measure); margin-top: 2rem; }

/* Case study page chrome --------------------------------------------------- */
.back-link { display: inline-block; font-size: 0.92rem; margin-bottom: 1.5rem; }

.meta {
  display: grid;
  gap: 1rem 2rem;
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 180px), 1fr));
  margin: 2rem 0 0;
  padding-top: 1.25rem;
  border-top: 1px solid var(--color-border);
}
.meta dt {
  font-size: 0.74rem;
  font-weight: 700;
  letter-spacing: 0.09em;
  text-transform: uppercase;
  color: var(--color-text-2);
}
.meta dd { margin: 0.15rem 0 0; font-weight: 700; }

.cs-section { padding-block: clamp(2.25rem, 6vw, 3.75rem); border-top: 1px solid var(--color-border); }
.cs-section:first-of-type { border-top: 0; }
.cs-section > .container > h2 { max-width: 28ch; }
.cs-section .partners { margin-top: 2rem; font-size: 0.95rem; color: var(--color-text-2); }
.cs-section .partners h3 { font-size: 0.95rem; color: var(--color-text); margin-bottom: 0.4rem; }
.cs-section .partners ul { margin: 0; }

.case-card { display: flex; flex-direction: column; }
.case-card h3 { font-size: 1.5rem; }
.case-card .btn-row { margin-top: auto; padding-top: 1.25rem; }

/* Definition-style detail lists (services) ----------------------------------- */
.detail { border-top: 1px solid var(--color-border); padding-block: 2.25rem; }
.detail:first-of-type { border-top: 0; padding-top: 0; }
.detail h3 { font-size: 1.45rem; }
.detail dl { margin: 1.25rem 0 0; max-width: var(--measure); }
.detail dt {
  font-size: 0.74rem;
  font-weight: 700;
  letter-spacing: 0.09em;
  text-transform: uppercase;
  color: var(--color-primary);
  margin-top: 1.1rem;
}
.detail dt:first-child { margin-top: 0; }
.detail dd { margin: 0.2rem 0 0; }

/* Two-column prose (about / contact) ------------------------------------------ */
.prose-cols {
  display: grid;
  gap: clamp(1.5rem, 5vw, 3.5rem);
  grid-template-columns: 1fr;
}
@media (min-width: 800px) {
  .prose-cols { grid-template-columns: 1.6fr 1fr; }
}
.prose-cols aside { font-size: 0.95rem; color: var(--color-text-2); }
.prose-cols aside h3 {
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--color-text);
  margin-top: 1.75rem;
}
.prose-cols aside h3:first-child { margin-top: 0; }

/* Experience list (about) ---------------------------------------------------- */
.experience { list-style: none; padding: 0; margin: 1.25rem 0 0; }
.experience li {
  margin: 0;
  padding: 1.1rem 0;
  border-top: 1px solid var(--color-border);
}
.experience li:last-child { border-bottom: 1px solid var(--color-border); }
.experience .role { font-weight: 700; display: block; }
.experience .where { color: var(--color-text-2); font-size: 0.95rem; display: block; }
.experience .years { font-size: 0.85rem; color: var(--color-primary); font-weight: 700; letter-spacing: 0.04em; }

/* Contact form ---------------------------------------------------------------- */
.form { display: grid; gap: 1.1rem; max-width: 34rem; margin-top: 2rem; }
.form label { display: block; font-weight: 700; font-size: 0.9rem; margin-bottom: 0.35rem; }
.form input,
.form select,
.form textarea {
  width: 100%;
  font: inherit;
  padding: 0.7rem 0.85rem;
  border: 1.5px solid var(--color-border);
  border-radius: 8px;
  background: var(--color-surface);
  color: var(--color-text);
}
.section--alt .form input,
.section--alt .form select,
.section--alt .form textarea { background: var(--color-bg); }
.form input:focus,
.form select:focus,
.form textarea:focus { outline: none; border-color: var(--color-primary); }
.form textarea { min-height: 140px; resize: vertical; }

.contact-methods { list-style: none; padding: 0; margin: 0.75rem 0 0; }
.contact-methods li { margin-bottom: 0.6rem; }

/* Footer ------------------------------------------------------------------- */
.site-footer {
  border-top: 1px solid var(--color-border);
  padding-block: 2.5rem;
  font-size: 0.9rem;
  color: var(--color-text-2);
}
.site-footer .container {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  justify-content: space-between;
  align-items: center;
}
.site-footer a { color: var(--color-text-2); }
.site-footer a:hover { color: var(--color-text); }
.site-footer nav { display: flex; gap: 1.25rem; flex-wrap: wrap; }

/* Utilities -------------------------------------------------------------------- */
.center { text-align: center; }
.center p { margin-inline: auto; }
.center .btn-row { justify-content: center; }
.mt-0 { margin-top: 0; }

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  * { transition: none !important; }
}

@media print {
  .site-header, .site-footer, .skip-link { display: none; }
}