/* Shared design system for mikekhaytman.com personal pages, consulting pages and the blog.
   DM Sans throughout; warm white / charcoal / restrained gold. No texture, no blend modes,
   no scroll-reveal: content is visible without JavaScript.
   Page families add their own sheet on top: /consulting/services.css, /blog/style.css,
   or a short inline <style> for one-off components. */

:root {
    --charcoal: #1a1a1a;
    --charcoal-soft: #3a3835;
    --ink: #2b2a28;
    --muted: #5c5852;
    --warm-white: #f8f6f3;
    --paper: #fffdf9;
    --cream: #efebe4;
    --line: #e1dbd1;
    --gold: #c9a227;
    --gold-ink: #7a5f0a;           /* gold for text and icons on light backgrounds (AA) */
    --on-dark: #d9d4cb;
    --on-dark-muted: #c4beb4;
    --on-dark-quiet: #a9a398;
    --sans: 'DM Sans', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    --mono: ui-monospace, 'SF Mono', Menlo, Consolas, monospace;
    --wrap: 1120px;
    --pad-x: clamp(1.25rem, 4vw, 2.5rem);
    --pad-y: clamp(2.75rem, 6vw, 4.5rem);
    --radius: 10px;
}

*, *::before, *::after { box-sizing: border-box; }
* { margin: 0; padding: 0; }

html { -webkit-text-size-adjust: 100%; scroll-padding-top: 5rem; }
@media (prefers-reduced-motion: no-preference) { html { scroll-behavior: smooth; } }

body {
    font-family: var(--sans);
    font-size: 1.0625rem;
    line-height: 1.6;
    color: var(--ink);
    background: var(--warm-white);
}

img { display: block; max-width: 100%; height: auto; }
ul, ol { list-style: none; }
a { color: inherit; text-underline-offset: 3px; text-decoration-thickness: 1px; }
strong { font-weight: 600; color: var(--charcoal); }
button { font: inherit; color: inherit; }

h1, h2, h3 { color: var(--charcoal); font-weight: 600; letter-spacing: -0.02em; line-height: 1.12; }
h1 { font-size: clamp(2.125rem, 1.4rem + 3vw, 3.5rem); font-weight: 650; letter-spacing: -0.03em; line-height: 1.04; }
h2 { font-size: clamp(1.625rem, 1.2rem + 1.5vw, 2.125rem); }
h3 { font-size: 1.1875rem; letter-spacing: -0.01em; line-height: 1.25; }

:focus-visible { outline: 3px solid var(--gold-ink); outline-offset: 3px; border-radius: 4px; }
.dark :focus-visible { outline-color: var(--gold); }
[tabindex="-1"]:focus { outline: none; }

.wrap { max-width: var(--wrap); margin: 0 auto; padding: 0 var(--pad-x); }
.section { padding: var(--pad-y) 0; }
.section.alt { background: var(--cream); }
.section.dark { background: var(--charcoal); color: var(--on-dark); }
.dark h2, .dark h3, .dark strong { color: var(--warm-white); }

.eyebrow {
    font-size: 0.8125rem;
    font-weight: 600;
    letter-spacing: 0.04em;
    color: var(--gold-ink);
    margin-bottom: 0.75rem;
}
.dark .eyebrow { color: var(--gold); }

.section-head { max-width: 640px; margin-bottom: clamp(1.75rem, 3vw, 2.5rem); }
.section-head p { margin-top: 0.75rem; color: var(--muted); }
.section-head p a { color: var(--gold-ink); font-weight: 500; }
.dark .section-head p { color: var(--on-dark-muted); }

.skip-link {
    position: absolute; left: 1rem; top: -4rem; z-index: 200;
    background: var(--charcoal); color: var(--warm-white);
    padding: 0.6rem 1rem; border-radius: 6px; text-decoration: none;
}
.skip-link:focus { top: 1rem; }

/* Navigation: one bar on every page. Always visible, no blend mode.
   Phones: logo + contact on the first row, section links on a second row. */
.site-nav {
    position: sticky; top: 0; z-index: 100;
    background: rgba(248, 246, 243, 0.96);
    border-bottom: 1px solid var(--line);
}
.site-nav .wrap { display: flex; align-items: center; gap: 1rem clamp(0.75rem, 2.5vw, 1.75rem); min-height: 4rem; }
.nav-logo { font-weight: 700; font-size: 1.125rem; letter-spacing: -0.02em; color: var(--charcoal); text-decoration: none; }
.nav-links { display: flex; align-items: center; gap: clamp(0.75rem, 2.5vw, 1.75rem); margin-left: auto; font-size: 0.9375rem; font-weight: 500; }
.nav-links a { text-decoration: none; color: var(--ink); padding: 0.5rem 0; }
.nav-links a:hover { color: var(--gold-ink); }
.nav-links a[aria-current="page"] { color: var(--gold-ink); }
.nav-cta {
    display: inline-flex; align-items: center;
    background: var(--charcoal); color: var(--warm-white);
    padding: 0.55rem 1rem; border: 0; border-radius: 999px;
    font-size: 0.9375rem; font-weight: 500; line-height: 1.2;
    text-decoration: none; cursor: pointer; white-space: nowrap;
}
.nav-cta:hover { background: var(--charcoal-soft); color: var(--warm-white); }
@media (max-width: 640px) {
    html { scroll-padding-top: 6.5rem; }
    .site-nav .wrap { flex-wrap: wrap; row-gap: 0; min-height: 0; padding-top: 0.5rem; }
    .nav-cta { margin-left: auto; padding: 0.5rem 0.95rem; font-size: 0.875rem; }
    .nav-links { order: 3; width: 100%; margin-left: 0; justify-content: space-between; gap: 1rem; overflow-x: auto; }
    .nav-links a { padding: 0.5rem 0 0.625rem; white-space: nowrap; }
}

/* Buttons */
.btn {
    display: inline-flex; align-items: center; justify-content: center; gap: 0.5rem;
    min-height: 3rem; padding: 0.75rem 1.5rem;
    border-radius: 999px; border: 1.5px solid var(--charcoal);
    font: 600 0.9875rem/1.2 var(--sans); text-decoration: none; text-align: center; cursor: pointer;
    transition: background-color 0.15s, color 0.15s, border-color 0.15s;
}
.btn-dark { background: var(--charcoal); color: var(--warm-white); }
.btn-dark:hover { background: var(--charcoal-soft); border-color: var(--charcoal-soft); }
.btn-line { background: transparent; color: var(--charcoal); }
.btn-line:hover { background: var(--charcoal); color: var(--warm-white); }
.btn-gold { background: var(--gold); border-color: var(--gold); color: var(--charcoal); }
.btn-gold:hover { background: #ddb93f; border-color: #ddb93f; }
.dark .btn-line { color: var(--warm-white); border-color: rgba(248, 246, 243, 0.45); }
.dark .btn-line:hover { background: var(--warm-white); color: var(--charcoal); border-color: var(--warm-white); }
.btn:disabled { opacity: 0.55; cursor: not-allowed; }
.btn-row { display: flex; flex-wrap: wrap; gap: 0.75rem; }

/* Hero (content-sized). With a portrait: text left, portrait right on desktop;
   small round portrait on phones. */
.hero { padding: clamp(2.5rem, 6vw, 4.5rem) 0 clamp(2.5rem, 5vw, 4rem); }
.hero-grid { display: grid; gap: clamp(2rem, 5vw, 4rem); align-items: center; grid-template-columns: minmax(0, 1fr); }
.hero h1 { max-width: 14ch; }
.hero .lead { font-size: clamp(1.0625rem, 1rem + 0.3vw, 1.1875rem); color: var(--muted); max-width: 36rem; margin: 1.25rem 0 1.75rem; }
.hero-meta { margin-top: 1.25rem; font-size: 0.9375rem; color: var(--muted); }

.portrait { margin: 0; max-width: 340px; }
.portrait img { width: 100%; aspect-ratio: 4 / 5; object-fit: cover; border-radius: var(--radius); background: var(--cream); }
.portrait figcaption { margin-top: 0.75rem; font-size: 0.9375rem; color: var(--muted); }
.portrait figcaption strong { display: block; }

@media (min-width: 820px) {
    .hero-grid { grid-template-columns: minmax(0, 1.55fr) minmax(0, 1fr); }
    .portrait { justify-self: end; order: 2; }
}
@media (max-width: 819px) {
    .portrait { display: grid; grid-template-columns: 88px 1fr; gap: 1rem; align-items: center; max-width: none; }
    .portrait img { border-radius: 50%; aspect-ratio: 1; object-position: 50% 20%; }
    .portrait figcaption { margin: 0; }
}

/* Cards */
.cards { display: grid; gap: 1.25rem; grid-template-columns: repeat(auto-fit, minmax(min(100%, 270px), 1fr)); }
.card {
    display: flex; flex-direction: column;
    background: var(--paper); border: 1px solid var(--line); border-radius: var(--radius);
    padding: clamp(1.5rem, 3vw, 2rem);
}
.card h3 { font-size: clamp(1.25rem, 1.1rem + 0.5vw, 1.4375rem); }
a.card { text-decoration: none; transition: border-color 0.15s; }
a.card:hover { border-color: var(--gold-ink); }
.card-body { flex: 1; }

/* Ticked lists */
.ticks { display: grid; gap: 0.5rem; font-size: 0.9625rem; }
.ticks li { position: relative; padding-left: 1.5rem; }
.ticks li::before {
    content: ''; position: absolute; left: 0.125rem; top: 0.5em;
    width: 0.5rem; height: 0.3rem;
    border-left: 2px solid var(--gold-ink); border-bottom: 2px solid var(--gold-ink);
    transform: rotate(-45deg);
}
.ticks a { color: var(--gold-ink); }

/* Numbered steps */
.steps { display: grid; gap: 1.25rem; grid-template-columns: repeat(auto-fit, minmax(min(100%, 220px), 1fr)); counter-reset: step; }
.steps li { counter-increment: step; border-top: 2px solid var(--gold); padding-top: 1rem; }
.steps li::before {
    content: counter(step); display: block;
    font-size: 0.875rem; font-weight: 700; color: var(--gold-ink); margin-bottom: 0.375rem;
}
.dark .steps li::before { color: var(--gold); }
.steps h3 { font-size: 1.0625rem; margin-bottom: 0.375rem; }
.steps p { font-size: 0.9625rem; color: var(--muted); }
.steps a { color: var(--gold-ink); }
.dark .steps p { color: var(--on-dark-muted); }

/* Accordions */
.accordion { border-top: 1px solid var(--line); }
.accordion details { border-bottom: 1px solid var(--line); }
.accordion summary {
    display: flex; justify-content: space-between; align-items: center; gap: 1rem;
    padding: 1.125rem 0; cursor: pointer; list-style: none;
    font-weight: 600; font-size: 1.0625rem; color: var(--charcoal);
}
.accordion summary::-webkit-details-marker { display: none; }
.accordion summary::after {
    content: '+'; flex: none; width: 1.75rem; height: 1.75rem; border-radius: 50%;
    display: grid; place-items: center; border: 1px solid var(--line);
    font-weight: 500; font-size: 1.125rem; line-height: 1; color: var(--gold-ink);
}
.accordion details[open] summary::after { content: '\2212'; }
.accordion summary:hover { color: var(--gold-ink); }
.accordion .panel { padding: 0 0 1.375rem; max-width: 46rem; color: var(--ink); font-size: 0.9875rem; }
.accordion .panel > * + * { margin-top: 0.75rem; }
.accordion .panel h3 { font-size: 1rem; margin-top: 1rem; }
.accordion .panel a { color: var(--gold-ink); }

/* Stat tiles (results, highlights) */
.stat-grid { display: grid; gap: 1rem; grid-template-columns: repeat(auto-fit, minmax(min(100%, 220px), 1fr)); }
.stat-grid > * { background: var(--paper); border: 1px solid var(--line); border-radius: var(--radius); padding: 1.25rem 1.375rem; }
.stat-grid strong, .stat-grid h3 { display: block; font-size: 1.375rem; font-weight: 650; letter-spacing: -0.02em; line-height: 1.2; color: var(--charcoal); margin-bottom: 0.375rem; }
.stat-grid span { display: block; font-size: 0.9375rem; color: var(--muted); }
.section.alt .stat-grid > * { background: var(--warm-white); }

/* Role list (experience on home and resume) */
.roles { border-top: 1px solid var(--line); }
.role {
    display: grid; gap: 0.375rem 2.5rem; grid-template-columns: minmax(0, 1fr);
    padding: 1.375rem 0; border-bottom: 1px solid var(--line);
}
.role-meta { font-size: 0.9375rem; color: var(--muted); }
.role-meta .co { display: block; color: var(--charcoal); font-weight: 600; }
.role h3 { font-size: 1.1875rem; margin-bottom: 0.375rem; }
.role p { color: var(--muted); max-width: 42rem; }
@media (min-width: 760px) { .role { grid-template-columns: 14rem minmax(0, 1fr); } }

/* Link rows (article lists) */
.link-list { border-top: 1px solid var(--line); }
.link-list a {
    display: grid; gap: 0.25rem 1.5rem; grid-template-columns: minmax(0, 1fr);
    padding: 1rem 0; border-bottom: 1px solid var(--line); text-decoration: none;
}
.link-list strong { font-size: 1.0625rem; letter-spacing: -0.01em; }
.link-list span { font-size: 0.9375rem; color: var(--muted); }
.link-list a:hover strong { color: var(--gold-ink); }
@media (min-width: 640px) { .link-list a { grid-template-columns: minmax(0, 1fr) auto; align-items: baseline; } }

/* Contact band */
.contact { text-align: left; }
.contact .wrap { display: grid; gap: 1.5rem 3rem; align-items: end; grid-template-columns: minmax(0, 1fr); }
@media (min-width: 900px) { .contact .wrap { grid-template-columns: minmax(0, 1.2fr) auto; } }
.contact p.text { margin-top: 0.75rem; max-width: 34rem; color: var(--on-dark-muted); }
.contact .small { grid-column: 1 / -1; font-size: 0.9375rem; color: var(--on-dark-quiet); }
.contact .small a { color: var(--warm-white); margin-right: 1rem; display: inline-block; padding: 0.25rem 0; }

/* Footer */
.site-footer { background: var(--charcoal); color: var(--on-dark-quiet); border-top: 1px solid rgba(255, 255, 255, 0.1); font-size: 0.875rem; padding: 1.5rem 0; }
.site-footer .wrap { display: flex; flex-wrap: wrap; justify-content: space-between; gap: 0.5rem 1.5rem; }
.site-footer nav { display: flex; flex-wrap: wrap; gap: 0.25rem 1.125rem; }
.site-footer a { color: var(--warm-white); }

@media (prefers-reduced-motion: reduce) {
    *, *::before, *::after { transition: none !important; animation: none !important; }
}