/*
  ==============================================================================
  styles.css — Michael Bruno Portfolio (v1, static)
  ------------------------------------------------------------------------------
  Design system lives entirely in CSS custom properties under :root and
  [data-theme="dark"]. Layout is section-based, matching the component
  boundaries in index.html (header, hero, about, expertise, experience,
  projects, services, tech-stack, contact, footer) so this file maps cleanly
  onto per-component stylesheets in a future SvelteKit build.
  ==============================================================================
*/

/* ---------------------------------------------------------------------------
   1. Design tokens
--------------------------------------------------------------------------- */
:root {
  /* Color — light theme (default) */
  --color-bg: #FFFFFF;
  --color-bg-raised: #FAFAFA;
  --color-text: #111111;
  --color-text-secondary: #666666;
  --color-border: #E5E5E5;
  --color-accent: #111111;
  --color-accent-contrast: #FFFFFF;
  --color-focus: #2563EB;
  --color-success: #0A7B3E;

  /* Color — inverse surfaces (used for dark panels within light theme, e.g. footer) */
  --color-inverse-bg: #0B0B0B;
  --color-inverse-text: #FFFFFF;
  --color-inverse-text-secondary: #A3A3A3;
  --color-inverse-border: #262626;

  /* Typography */
  --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", "Inter", Roboto, Helvetica, Arial, sans-serif;
  --font-mono: ui-monospace, "SF Mono", Menlo, Consolas, "Liberation Mono", monospace;

  --fs-xs: 0.8125rem;
  --fs-sm: 0.9375rem;
  --fs-base: 1rem;
  --fs-md: 1.125rem;
  --fs-lg: 1.375rem;
  --fs-xl: 1.75rem;
  --fs-2xl: 2.25rem;
  --fs-3xl: 3rem;
  --fs-hero: clamp(2.5rem, 5vw, 3.75rem);

  --lh-tight: 1.15;
  --lh-snug: 1.35;
  --lh-normal: 1.6;

  /* Spacing scale */
  --space-1: 0.25rem;
  --space-2: 0.5rem;
  --space-3: 0.75rem;
  --space-4: 1rem;
  --space-5: 1.5rem;
  --space-6: 2rem;
  --space-7: 2.5rem;
  --space-8: 3rem;
  --space-9: 4rem;
  --space-10: 6rem;
  --space-11: 8rem;

  /* Radius */
  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 14px;
  --radius-full: 999px;

  /* Layout */
  --container-width: 1120px;
  --header-height: 72px;

  /* Motion */
  --ease-standard: cubic-bezier(0.2, 0.6, 0.2, 1);
  --duration-fast: 150ms;
  --duration-base: 220ms;
}

[data-theme="dark"] {
  --color-bg: #0B0B0B;
  --color-bg-raised: #131313;
  --color-text: #FFFFFF;
  --color-text-secondary: #A3A3A3;
  --color-border: #262626;
  --color-accent: #FFFFFF;
  --color-accent-contrast: #0B0B0B;

  --color-inverse-bg: #FFFFFF;
  --color-inverse-text: #111111;
  --color-inverse-text-secondary: #666666;
  --color-inverse-border: #E5E5E5;
}

@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --color-bg: #0B0B0B;
    --color-bg-raised: #131313;
    --color-text: #FFFFFF;
    --color-text-secondary: #A3A3A3;
    --color-border: #262626;
    --color-accent: #FFFFFF;
    --color-accent-contrast: #0B0B0B;

    --color-inverse-bg: #FFFFFF;
    --color-inverse-text: #111111;
    --color-inverse-text-secondary: #666666;
    --color-inverse-border: #E5E5E5;
  }
}

/* ---------------------------------------------------------------------------
   2. Reset
--------------------------------------------------------------------------- */
*, *::before, *::after { box-sizing: border-box; }
* { margin: 0; }

html {
  -webkit-text-size-adjust: 100%;
  scroll-behavior: smooth;
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
}

body {
  font-family: var(--font-sans);
  font-size: var(--fs-base);
  line-height: var(--lh-normal);
  color: var(--color-text);
  background: var(--color-bg);
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
  opacity: 0;
  transition: background-color var(--duration-base) var(--ease-standard),
    color var(--duration-base) var(--ease-standard),
    opacity var(--duration-base) var(--ease-standard);
}

/* Content is JS-rendered (see content.js/script.js); this stays hidden
   until script.js finishes populating the page, then fades in — avoids
   painting an empty shell that visibly "pops" once content arrives. */
body.is-ready { opacity: 1; }

img, svg { display: block; max-width: 100%; }

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

ul, ol { list-style: none; padding: 0; }

button {
  font: inherit;
  color: inherit;
  background: none;
  border: none;
  cursor: pointer;
}

input, textarea { font: inherit; }

h1, h2, h3, h4 {
  line-height: var(--lh-tight);
  font-weight: 600;
  letter-spacing: -0.02em;
}

.icon {
  width: 18px;
  height: 18px;
  fill: none;
  stroke: currentColor;
  stroke-width: 1.6;
  stroke-linecap: round;
  stroke-linejoin: round;
}
.icon-small { width: 15px; height: 15px; }

/* Skip link */
.skip-link {
  position: absolute;
  top: -48px;
  left: var(--space-4);
  background: var(--color-accent);
  color: var(--color-accent-contrast);
  padding: var(--space-3) var(--space-4);
  border-radius: var(--radius-sm);
  z-index: 1000;
  transition: top var(--duration-fast) var(--ease-standard);
}
.skip-link:focus { top: var(--space-4); }

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

/* ---------------------------------------------------------------------------
   3. Layout primitives
--------------------------------------------------------------------------- */
.container {
  width: 100%;
  max-width: var(--container-width);
  margin-inline: auto;
  padding-inline: var(--space-6);
}

.section { padding-block: var(--space-10); }
.section:nth-of-type(even) { background: var(--color-bg-raised); }

.section-heading {
  max-width: 640px;
  margin-bottom: var(--space-8);
}

.section-heading h2 {
  font-size: var(--fs-2xl);
  margin-top: var(--space-2);
}

.eyebrow {
  font-size: var(--fs-xs);
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--color-text-secondary);
}

/* ---------------------------------------------------------------------------
   4. Buttons
--------------------------------------------------------------------------- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-3) var(--space-5);
  border-radius: var(--radius-sm);
  font-size: var(--fs-sm);
  font-weight: 600;
  border: 1px solid transparent;
  transition: background-color var(--duration-fast) var(--ease-standard),
    border-color var(--duration-fast) var(--ease-standard),
    transform var(--duration-fast) var(--ease-standard);
  white-space: nowrap;
}
.btn:active { transform: translateY(1px); }

.btn-primary {
  background: var(--color-accent);
  color: var(--color-accent-contrast);
}
.btn-primary:hover { opacity: 0.88; }

.btn-secondary {
  background: transparent;
  color: var(--color-text);
  border-color: var(--color-border);
}
.btn-secondary:hover { border-color: var(--color-text-secondary); }

.btn-small { padding: var(--space-2) var(--space-4); font-size: var(--fs-xs); }

/* ---------------------------------------------------------------------------
   5. Header / Navigation
--------------------------------------------------------------------------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  height: var(--header-height);
  display: flex;
  align-items: center;
  background: transparent;
  border-bottom: 1px solid transparent;
  transition: background-color var(--duration-base) var(--ease-standard),
    border-color var(--duration-base) var(--ease-standard);
}

.site-header.is-scrolled {
  background: color-mix(in srgb, var(--color-bg) 92%, transparent);
  backdrop-filter: blur(10px);
  border-bottom-color: var(--color-border);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-5);
}

.brand {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  font-weight: 600;
  font-size: var(--fs-md);
}

.brand-mark {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 34px;
  height: 34px;
  border-radius: var(--radius-sm);
  background: var(--color-accent);
  color: var(--color-accent-contrast);
  font-size: var(--fs-xs);
  font-weight: 700;
  letter-spacing: 0.01em;
}

.primary-nav-list {
  display: flex;
  align-items: center;
  gap: var(--space-6);
}

.primary-nav-list a {
  font-size: var(--fs-sm);
  color: var(--color-text-secondary);
  transition: color var(--duration-fast) var(--ease-standard);
}
.primary-nav-list a:hover,
.primary-nav-list a.is-active { color: var(--color-text); }

.header-actions { display: flex; align-items: center; gap: var(--space-4); }

.theme-toggle {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  border-radius: var(--radius-full);
  border: 1px solid var(--color-border);
  color: var(--color-text-secondary);
}
.theme-toggle:hover { color: var(--color-text); border-color: var(--color-text-secondary); }
.icon-moon { display: none; }
[data-theme="dark"] .icon-sun { display: none; }
[data-theme="dark"] .icon-moon { display: block; }

.nav-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 36px;
  height: 36px;
}
.nav-toggle span {
  display: block;
  width: 20px;
  height: 1.6px;
  background: var(--color-text);
  transition: transform var(--duration-fast) var(--ease-standard),
    opacity var(--duration-fast) var(--ease-standard);
}
.nav-toggle[aria-expanded="true"] span:nth-child(1) { transform: translateY(6.6px) rotate(45deg); }
.nav-toggle[aria-expanded="true"] span:nth-child(2) { opacity: 0; }
.nav-toggle[aria-expanded="true"] span:nth-child(3) { transform: translateY(-6.6px) rotate(-45deg); }

/* ---------------------------------------------------------------------------
   6. Hero
--------------------------------------------------------------------------- */
.hero { padding-block: var(--space-10) var(--space-9); }

.hero-inner {
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  gap: var(--space-9);
  align-items: center;
}

.hero-content, .profile-card { min-width: 0; }

.hero-content .eyebrow { margin-bottom: var(--space-4); }

.hero-heading {
  font-size: var(--fs-hero);
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}

.hero-role {
  color: var(--color-text-secondary);
  font-size: 0.5em;
  font-weight: 500;
  min-height: 1.3em;
}

.hero-summary {
  margin-top: var(--space-5);
  max-width: 46ch;
  font-size: var(--fs-md);
  color: var(--color-text-secondary);
}

.hero-actions {
  display: flex;
  align-items: center;
  gap: var(--space-4);
  margin-top: var(--space-7);
  flex-wrap: wrap;
}

/* Profile card */
.profile-card {
  background: var(--color-bg-raised);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-6);
}

.profile-card-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-block: var(--space-3);
  border-bottom: 1px solid var(--color-border);
  gap: var(--space-4);
}
.profile-card-row:first-child { padding-top: 0; }
.profile-card-row:last-of-type { border-bottom: none; }

.profile-card-label {
  font-size: var(--fs-xs);
  color: var(--color-text-secondary);
}

.profile-card-value {
  font-size: var(--fs-sm);
  font-weight: 600;
  text-align: right;
  min-width: 0;
}

.profile-card-stack {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
  justify-content: flex-end;
}

.availability-dot {
  display: inline-block;
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--color-success);
  margin-right: var(--space-2);
}

.profile-card-highlights {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-3);
  margin-top: var(--space-5);
  padding-top: var(--space-5);
  border-top: 1px solid var(--color-border);
}
.profile-card-highlights div { text-align: center; }
.profile-card-highlights strong { display: block; font-size: var(--fs-md); }
.profile-card-highlights span {
  font-size: var(--fs-xs);
  color: var(--color-text-secondary);
}

/* ---------------------------------------------------------------------------
   7. Badges (shared)
--------------------------------------------------------------------------- */
.badge {
  display: inline-flex;
  align-items: center;
  padding: var(--space-1) var(--space-3);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-full);
  font-size: var(--fs-xs);
  color: var(--color-text-secondary);
  background: var(--color-bg);
}

/* ---------------------------------------------------------------------------
   8. About
--------------------------------------------------------------------------- */
.about-inner {
  display: grid;
  grid-template-columns: 0.8fr 1.2fr;
  gap: var(--space-9);
}
.about-inner > * { min-width: 0; }

.about-body {
  display: flex;
  flex-direction: column;
  gap: var(--space-5);
  font-size: var(--fs-md);
  color: var(--color-text-secondary);
  max-width: 62ch;
}

.about-body strong { color: var(--color-text); font-weight: 600; }

/* ---------------------------------------------------------------------------
   9. Expertise grid
--------------------------------------------------------------------------- */
.expertise-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-5);
}

.expertise-card {
  padding: var(--space-6);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  transition: border-color var(--duration-fast) var(--ease-standard);
}
.expertise-card:hover { border-color: var(--color-text-secondary); }

.expertise-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  border-radius: var(--radius-sm);
  background: var(--color-bg-raised);
  border: 1px solid var(--color-border);
  margin-bottom: var(--space-4);
}
.section:nth-of-type(even) .expertise-icon { background: var(--color-bg); }

.expertise-card h3 { font-size: var(--fs-md); margin-bottom: var(--space-2); }
.expertise-card p { color: var(--color-text-secondary); font-size: var(--fs-sm); }

/* ---------------------------------------------------------------------------
   10. Experience timeline
--------------------------------------------------------------------------- */
.timeline {
  display: flex;
  flex-direction: column;
  gap: var(--space-6);
  max-width: 760px;
}

.timeline-item {
  position: relative;
  padding-left: var(--space-6);
  border-left: 2px solid var(--color-border);
  padding-bottom: var(--space-6);
}
.timeline-item:last-child { padding-bottom: 0; }

.timeline-item::before {
  content: "";
  position: absolute;
  left: -6.5px;
  top: 4px;
  width: 11px;
  height: 11px;
  border-radius: 50%;
  background: var(--color-bg);
  border: 2px solid var(--color-text);
}
.timeline-item.is-current::before { background: var(--color-text); }

.timeline-header {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  justify-content: space-between;
  gap: var(--space-3);
}

.timeline-role { font-size: var(--fs-md); font-weight: 600; }
.timeline-company { color: var(--color-text-secondary); font-size: var(--fs-sm); }
.timeline-period {
  font-size: var(--fs-xs);
  color: var(--color-text-secondary);
  font-family: var(--font-mono);
  white-space: nowrap;
}

.timeline-description {
  margin-top: var(--space-3);
  color: var(--color-text-secondary);
  max-width: 60ch;
}

.timeline-tags {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
  margin-top: var(--space-4);
}

/* ---------------------------------------------------------------------------
   11. Projects
--------------------------------------------------------------------------- */
.project-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-5);
}

.project-card {
  display: flex;
  flex-direction: column;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: var(--space-6);
  transition: border-color var(--duration-fast) var(--ease-standard);
}
.project-card:hover { border-color: var(--color-text-secondary); }

.project-card-header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: var(--space-3);
  margin-bottom: var(--space-3);
}

.project-card-header h3 { font-size: var(--fs-md); }

.status-pill {
  font-size: var(--fs-xs);
  font-weight: 600;
  padding: 2px var(--space-3);
  border-radius: var(--radius-full);
  white-space: nowrap;
  border: 1px solid var(--color-border);
  color: var(--color-text-secondary);
}
.status-pill[data-status="live"],
.status-pill[data-status="published"] {
  color: var(--color-success);
  border-color: color-mix(in srgb, var(--color-success) 35%, transparent);
}

.project-card p.project-description {
  color: var(--color-text-secondary);
  font-size: var(--fs-sm);
  flex-grow: 1;
}

.project-tech {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
  margin-block: var(--space-5);
}

.project-links {
  display: flex;
  gap: var(--space-5);
  margin-top: auto;
  padding-top: var(--space-4);
  border-top: 1px solid var(--color-border);
}

.project-links a {
  font-size: var(--fs-xs);
  font-weight: 600;
  color: var(--color-text-secondary);
  display: inline-flex;
  align-items: center;
  gap: var(--space-1);
}
.project-links a:hover { color: var(--color-text); }
.project-links a[aria-disabled="true"] {
  pointer-events: none;
  opacity: 0.5;
}

/* ---------------------------------------------------------------------------
   12. Services
--------------------------------------------------------------------------- */
.service-list {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 1px;
  background: var(--color-border);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  overflow: hidden;
}

.service-item {
  padding: var(--space-6);
  background: var(--color-bg);
}

.service-item h3 { font-size: var(--fs-base); margin-bottom: var(--space-2); }
.service-item p { color: var(--color-text-secondary); font-size: var(--fs-sm); }

/* ---------------------------------------------------------------------------
   13. Tech stack
--------------------------------------------------------------------------- */
.tech-stack-groups {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-7) var(--space-6);
}

.tech-group-label {
  font-size: var(--fs-xs);
  font-weight: 600;
  color: var(--color-text-secondary);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  margin-bottom: var(--space-3);
}

.tech-group-badges {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
}

/* ---------------------------------------------------------------------------
   14. Contact
--------------------------------------------------------------------------- */
.section.contact {
  background: var(--color-inverse-bg);
  color: var(--color-inverse-text);
}

.contact-inner {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: var(--space-9);
  align-items: stretch;
}
.contact-inner > * { min-width: 0; }

.contact .eyebrow { color: var(--color-inverse-text-secondary); }
.contact-copy h2 { font-size: var(--fs-2xl); margin-top: var(--space-2); }

.contact-message {
  margin-top: var(--space-4);
  color: var(--color-inverse-text-secondary);
  max-width: 46ch;
}

.contact-form {
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
  margin-top: var(--space-6);
  max-width: 440px;
}

.form-row-group {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-4);
}

.form-row { display: flex; flex-direction: column; gap: var(--space-2); }

.form-row label {
  font-size: var(--fs-xs);
  font-weight: 600;
  color: var(--color-inverse-text-secondary);
}

.form-row input,
.form-row textarea {
  background: transparent;
  border: 1px solid var(--color-inverse-border);
  border-radius: var(--radius-sm);
  padding: var(--space-3) var(--space-4);
  color: var(--color-inverse-text);
  font-size: var(--fs-sm);
  font-family: inherit;
}
.form-row textarea { resize: vertical; min-height: 110px; }

.form-row input:focus,
.form-row textarea:focus {
  border-color: var(--color-inverse-text);
}

.contact-form .btn-primary {
  align-self: flex-start;
  background: var(--color-inverse-text);
  color: var(--color-inverse-bg);
}

.form-note {
  font-size: var(--fs-xs);
  color: var(--color-inverse-text-secondary);
  min-height: 1.2em;
}

.contact-sidebar {
  display: flex;
  flex-direction: column;
  border: 1px solid var(--color-inverse-border);
  border-radius: var(--radius-lg);
  padding: var(--space-7);
  height: 100%;
}

.contact-sidebar-label {
  font-size: var(--fs-xs);
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--color-inverse-text-secondary);
}

.contact-details {
  display: flex;
  flex-direction: column;
  gap: var(--space-5);
  margin-top: var(--space-5);
}

.contact-detail dt {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  font-size: var(--fs-xs);
  color: var(--color-inverse-text-secondary);
  margin-bottom: var(--space-1);
}
.contact-detail dd a,
.contact-detail dd { font-size: var(--fs-md); font-weight: 500; }
.contact-detail dd a:hover { text-decoration: underline; }

.contact-sidebar-note {
  font-size: var(--fs-sm);
  color: var(--color-inverse-text-secondary);
  margin-top: auto;
  padding-top: var(--space-6);
  border-top: 1px solid var(--color-inverse-border);
}

/* ---------------------------------------------------------------------------
   15. Footer
--------------------------------------------------------------------------- */
.site-footer {
  background: var(--color-inverse-bg);
  color: var(--color-inverse-text-secondary);
  border-top: 1px solid var(--color-inverse-border);
}

.footer-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-5);
  padding-block: var(--space-6);
  flex-wrap: wrap;
}

.footer-brand { display: flex; align-items: center; gap: var(--space-4); }
.footer-brand .brand-mark { background: var(--color-inverse-text); color: var(--color-inverse-bg); }
.footer-tagline { font-size: var(--fs-sm); }

.footer-social { display: flex; gap: var(--space-5); }
.footer-social a { font-size: var(--fs-sm); }
.footer-social a:hover { color: var(--color-inverse-text); }

.footer-copyright { font-size: var(--fs-xs); }

/* ---------------------------------------------------------------------------
   16. Responsive
--------------------------------------------------------------------------- */
@media (max-width: 960px) {
  .hero-inner { grid-template-columns: 1fr; gap: var(--space-8); }
  .about-inner { grid-template-columns: 1fr; gap: var(--space-5); }
  .expertise-grid { grid-template-columns: repeat(2, 1fr); }
  .project-grid { grid-template-columns: 1fr; }
  .tech-stack-groups { grid-template-columns: repeat(2, 1fr); }
  .contact-inner { grid-template-columns: 1fr; }
  .contact-sidebar { height: auto; }
}

@media (max-width: 720px) {
  :root { --header-height: 64px; }

  .container { padding-inline: var(--space-5); }

  .primary-nav {
    position: fixed;
    inset: var(--header-height) 0 0 0;
    background: var(--color-bg);
    padding: var(--space-6);
    transform: translateY(-8px);
    opacity: 0;
    pointer-events: none;
    transition: opacity var(--duration-base) var(--ease-standard),
      transform var(--duration-base) var(--ease-standard);
  }
  .primary-nav.is-open {
    opacity: 1;
    transform: translateY(0);
    pointer-events: auto;
  }
  .primary-nav-list {
    flex-direction: column;
    align-items: flex-start;
    gap: var(--space-5);
  }
  .primary-nav-list a { font-size: var(--fs-lg); }

  .header-cta { display: none; }
  .nav-toggle { display: flex; }

  .expertise-grid { grid-template-columns: 1fr; }
  .service-list { grid-template-columns: 1fr; }
  .service-item { border-right: none; }
  .tech-stack-groups { grid-template-columns: 1fr 1fr; }

  .profile-card-row { flex-wrap: wrap; }
  .profile-card-value { text-align: left; }
  .profile-card-highlights { grid-template-columns: repeat(3, 1fr); }
}

@media (max-width: 480px) {
  .tech-stack-groups { grid-template-columns: 1fr; }
  .hero-actions { flex-direction: column; align-items: stretch; }
  .hero-actions .btn { justify-content: center; }
  .form-row-group { grid-template-columns: 1fr; }
}