/* ============================================================
   Makhate Makhate — Portfolio styles
   Aesthetic: dark editorial + warm amber accent (with light mode).
   Organised as: tokens → base → layout → components → sections → utils.
   {{EDIT}} — brand colors live in the :root tokens below.
   ============================================================ */

/* ---------- Design tokens ---------- */
:root {
  /* Palette (dark is default) */
  --bg:        #0e0e11;
  --bg-alt:    #141419;
  --surface:   #1a1a21;
  --border:    #2a2a34;
  --text:      #ececf1;
  --text-dim:  #a2a2b0;
  --accent:    #f5a623;   /* warm amber — the one accent color */
  --accent-ink:#1a1205;   /* text that sits on the accent */
  --accent-soft: rgba(245, 166, 35, 0.14);

  /* Type */
  --font-display: "Space Grotesk", "Segoe UI", system-ui, sans-serif;
  --font-body: "Inter", system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;

  /* Rhythm */
  --maxw: 1120px;
  --pad: clamp(1.1rem, 4vw, 2rem);
  --radius: 16px;
  --radius-sm: 10px;
  --shadow: 0 20px 50px -25px rgba(0, 0, 0, 0.7);
  --transition: 0.25s cubic-bezier(0.4, 0, 0.2, 1);
}

/* Light theme overrides */
[data-theme="light"] {
  --bg:        #faf9f6;
  --bg-alt:    #f2f0ea;
  --surface:   #ffffff;
  --border:    #e4e1d8;
  --text:      #1b1b1f;
  --text-dim:  #5c5c68;
  --accent:    #c8791a;
  --accent-ink:#fff8ee;
  --accent-soft: rgba(200, 121, 26, 0.12);
  --shadow: 0 20px 45px -28px rgba(50, 40, 20, 0.35);
}

/* ---------- Base ---------- */
* { box-sizing: border-box; }

html {
  scroll-behavior: smooth;
  scroll-padding-top: 84px; /* offset for sticky header on anchor jump */
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-body);
  font-size: 1rem;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  overflow-x: hidden;
}

h1, h2, h3 {
  font-family: var(--font-display);
  line-height: 1.1;
  margin: 0 0 0.4em;
  letter-spacing: -0.02em;
}

p { margin: 0 0 1rem; }
a { color: inherit; text-decoration: none; }
img { max-width: 100%; display: block; }
ul, ol { margin: 0; padding: 0; list-style: none; }

:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 3px;
  border-radius: 4px;
}

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

.section { padding: clamp(4rem, 9vw, 7rem) 0; }
.section-alt { background: var(--bg-alt); }

.section-head { max-width: 640px; margin-bottom: 2.5rem; }
.eyebrow {
  font-family: var(--font-display);
  text-transform: uppercase;
  letter-spacing: 0.18em;
  font-size: 0.78rem;
  color: var(--accent);
  margin: 0 0 0.6rem;
}
.section h2 { font-size: clamp(1.7rem, 4vw, 2.5rem); }
.accent { color: var(--accent); }

/* Skip link */
.skip-link {
  position: absolute;
  left: 1rem; top: -100px;
  background: var(--accent);
  color: var(--accent-ink);
  padding: 0.6rem 1rem;
  border-radius: var(--radius-sm);
  z-index: 999;
  transition: top var(--transition);
}
.skip-link:focus { top: 1rem; }

/* ---------- Header / Nav ---------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: color-mix(in srgb, var(--bg) 82%, transparent);
  backdrop-filter: saturate(140%) blur(12px);
  border-bottom: 1px solid transparent;
  transition: border-color var(--transition), background var(--transition);
}
.site-header.scrolled { border-bottom-color: var(--border); }

.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  max-width: var(--maxw);
  margin-inline: auto;
  padding: 0.85rem var(--pad);
}

.brand { display: inline-flex; align-items: center; gap: 0.6rem; font-family: var(--font-display); font-weight: 700; }
.brand-mark {
  display: grid; place-items: center;
  width: 34px; height: 34px;
  background: var(--accent); color: var(--accent-ink);
  border-radius: 9px; font-size: 0.85rem;
}
.brand-name { font-size: 1.05rem; }

.nav-menu { display: flex; align-items: center; gap: 1.6rem; }
.nav-menu a {
  color: var(--text-dim);
  font-size: 0.95rem;
  position: relative;
  transition: color var(--transition);
}
.nav-menu a::after {
  content: "";
  position: absolute; left: 0; bottom: -6px;
  width: 100%; height: 2px;
  background: var(--accent);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform var(--transition);
}
.nav-menu a:hover,
.nav-menu a.active { color: var(--text); }
.nav-menu a.active::after,
.nav-menu a:hover::after { transform: scaleX(1); }

.theme-toggle {
  display: grid; place-items: center;
  width: 38px; height: 38px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 10px;
  color: var(--text);
  cursor: pointer;
  transition: border-color var(--transition), color var(--transition);
}
.theme-toggle:hover { border-color: var(--accent); color: var(--accent); }
.icon-moon { display: none; }
[data-theme="light"] .icon-sun { display: none; }
[data-theme="light"] .icon-moon { display: block; }

/* Hamburger */
.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  width: 42px; height: 42px;
  background: transparent;
  border: 1px solid var(--border);
  border-radius: 10px;
  cursor: pointer;
  padding: 0;
  align-items: center; justify-content: center;
}
.nav-toggle-bar {
  width: 20px; height: 2px;
  background: var(--text);
  transition: transform var(--transition), opacity var(--transition);
}
.nav-toggle[aria-expanded="true"] .nav-toggle-bar:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav-toggle[aria-expanded="true"] .nav-toggle-bar:nth-child(2) { opacity: 0; }
.nav-toggle[aria-expanded="true"] .nav-toggle-bar:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 0.98rem;
  padding: 0.8rem 1.5rem;
  border-radius: 999px;
  border: 1px solid transparent;
  cursor: pointer;
  transition: transform var(--transition), background var(--transition), border-color var(--transition), color var(--transition);
}
.btn:hover { transform: translateY(-2px); }
.btn-primary { background: var(--accent); color: var(--accent-ink); }
.btn-primary:hover { background: color-mix(in srgb, var(--accent) 88%, #fff); }
.btn-ghost { border-color: var(--border); color: var(--text); }
.btn-ghost:hover { border-color: var(--accent); color: var(--accent); }

.text-link {
  display: inline-flex; align-items: center; gap: 0.4rem;
  color: var(--accent); font-weight: 600;
  transition: gap var(--transition);
}
.text-link:hover { gap: 0.7rem; }

/* ============================================================
   HERO
   ============================================================ */
.hero {
  position: relative;
  min-height: min(92vh, 820px);
  display: flex;
  align-items: center;
  overflow: hidden;
  padding: 5rem 0;
}
.hero-inner { position: relative; z-index: 2; max-width: 820px; }

.hero-eyebrow {
  font-family: var(--font-display);
  text-transform: uppercase;
  letter-spacing: 0.22em;
  font-size: 0.82rem;
  color: var(--accent);
  margin-bottom: 1rem;
}
.hero-title {
  font-size: clamp(2.3rem, 7vw, 4.5rem);
  font-weight: 700;
  margin-bottom: 1.2rem;
}
.hero-sub {
  font-size: clamp(1.05rem, 2.2vw, 1.3rem);
  color: var(--text-dim);
  max-width: 40ch;
  margin-bottom: 2rem;
}
.hero-cta { display: flex; flex-wrap: wrap; gap: 0.9rem; margin-bottom: 3rem; }

.hero-stats {
  display: flex;
  flex-wrap: wrap;
  gap: clamp(1.5rem, 5vw, 3.5rem);
}
.hero-stats li { display: flex; flex-direction: column; }
.hero-stats strong {
  font-family: var(--font-display);
  font-size: clamp(1.3rem, 3vw, 1.7rem);
  color: var(--text);
}
.hero-stats span { font-size: 0.85rem; color: var(--text-dim); }

/* Animated background */
.hero-bg { position: absolute; inset: 0; z-index: 1; }
.blob {
  position: absolute;
  border-radius: 50%;
  filter: blur(80px);
  opacity: 0.5;
  will-change: transform;
}
.blob-a {
  width: 42vw; height: 42vw; max-width: 560px; max-height: 560px;
  top: -8%; right: -6%;
  background: radial-gradient(circle, var(--accent), transparent 70%);
  animation: float-a 16s ease-in-out infinite;
}
.blob-b {
  width: 36vw; height: 36vw; max-width: 480px; max-height: 480px;
  bottom: -12%; left: -8%;
  background: radial-gradient(circle, #5b6cff, transparent 70%);
  opacity: 0.28;
  animation: float-b 20s ease-in-out infinite;
}
.grid-overlay {
  position: absolute; inset: 0;
  background-image:
    linear-gradient(var(--border) 1px, transparent 1px),
    linear-gradient(90deg, var(--border) 1px, transparent 1px);
  background-size: 64px 64px;
  opacity: 0.12;
  mask-image: radial-gradient(ellipse 80% 60% at 50% 40%, #000 40%, transparent 100%);
  -webkit-mask-image: radial-gradient(ellipse 80% 60% at 50% 40%, #000 40%, transparent 100%);
}
@keyframes float-a { 50% { transform: translate(-30px, 40px) scale(1.1); } }
@keyframes float-b { 50% { transform: translate(40px, -30px) scale(1.15); } }

.scroll-cue {
  position: absolute;
  left: 50%; bottom: 1.6rem;
  transform: translateX(-50%);
  width: 26px; height: 42px;
  border: 2px solid var(--border);
  border-radius: 14px;
  z-index: 2;
}
.scroll-cue span {
  position: absolute; left: 50%; top: 8px;
  width: 4px; height: 8px;
  margin-left: -2px;
  background: var(--accent);
  border-radius: 2px;
  animation: scroll-dot 1.6s ease-in-out infinite;
}
@keyframes scroll-dot { 0%,100% { opacity: 0; transform: translateY(0); } 40% { opacity: 1; } 80% { opacity: 0; transform: translateY(12px); } }

/* ============================================================
   ABOUT
   ============================================================ */
.about-grid {
  display: grid;
  grid-template-columns: 340px 1fr;
  gap: clamp(2rem, 6vw, 4.5rem);
  align-items: center;
}
.about-photo { position: relative; }
.about-photo img {
  width: 100%;
  aspect-ratio: 1 / 1;
  object-fit: cover;
  object-position: center 20%;
  border-radius: var(--radius);
  border: 1px solid var(--border);
  position: relative;
  z-index: 2;
}
.about-photo-glow {
  position: absolute; inset: 0;
  transform: translate(16px, 16px);
  border: 2px solid var(--accent);
  border-radius: var(--radius);
  z-index: 1;
}
.about-body h2 { font-size: clamp(1.6rem, 3.5vw, 2.2rem); }
.about-body > p { color: var(--text-dim); }
.about-facts { margin: 1.5rem 0; display: grid; gap: 0.65rem; }
.about-facts li { display: flex; gap: 0.6rem; align-items: center; font-size: 0.98rem; }
.about-facts span { font-size: 1.1rem; }

/* ============================================================
   SKILLS
   ============================================================ */
.skills-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(230px, 1fr));
  gap: 1.2rem;
}
.skill-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.5rem;
  transition: transform var(--transition), border-color var(--transition);
}
.skill-card:hover { transform: translateY(-4px); border-color: var(--accent); }
.skill-card h3 { font-size: 1.05rem; margin-bottom: 1rem; }
.tags { display: flex; flex-wrap: wrap; gap: 0.5rem; }
.tags li {
  font-size: 0.85rem;
  padding: 0.35rem 0.75rem;
  background: var(--accent-soft);
  color: var(--text);
  border-radius: 999px;
  border: 1px solid transparent;
  transition: border-color var(--transition);
}
.skill-card:hover .tags li { border-color: color-mix(in srgb, var(--accent) 40%, transparent); }

/* ============================================================
   PROJECTS
   ============================================================ */
.projects-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1.4rem;
}
.project-card {
  display: flex;
  flex-direction: column;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  transition: transform var(--transition), border-color var(--transition), box-shadow var(--transition);
}
.project-card:hover {
  transform: translateY(-5px);
  border-color: var(--accent);
  box-shadow: var(--shadow);
}
/* Featured project spans full width with a side-by-side layout on wide screens */
.project-card.featured { grid-column: 1 / -1; }
.project-thumb {
  display: grid; place-items: center;
  aspect-ratio: 16 / 7;
  background:
    radial-gradient(circle at 30% 30%, var(--accent-soft), transparent 60%),
    var(--bg-alt);
  border-bottom: 1px solid var(--border);
}
.thumb-emoji { font-size: clamp(2.5rem, 6vw, 4rem); }
.project-body { padding: 1.5rem; display: flex; flex-direction: column; gap: 0.6rem; flex: 1; }
.project-tags { display: flex; flex-wrap: wrap; gap: 0.4rem; }
.project-tags span {
  font-size: 0.72rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--accent);
  padding: 0.2rem 0.6rem;
  border: 1px solid color-mix(in srgb, var(--accent) 35%, transparent);
  border-radius: 999px;
}
.project-body h3 { font-size: 1.25rem; margin: 0; }
.project-body p { color: var(--text-dim); margin: 0; font-size: 0.95rem; }
/* Emphasise the HL7 FHIR standard inline in the copy */
.fhir-standard {
  font-weight: 700;
  color: var(--text);
  white-space: nowrap;
}
/* FHIR logo used as the project thumbnail icon */
.thumb-logo {
  width: auto;
  height: clamp(2.2rem, 5vw, 3.4rem);
  object-fit: contain;
}
.project-links { display: flex; gap: 1.2rem; margin-top: auto; padding-top: 0.6rem; }
.project-links a { color: var(--accent); font-weight: 600; font-size: 0.9rem; }
.project-links a:hover { text-decoration: underline; }

@media (min-width: 720px) {
  .project-card.featured { flex-direction: row; }
  .project-card.featured .project-thumb {
    aspect-ratio: auto;
    flex: 0 0 42%;
    border-bottom: none;
    border-right: 1px solid var(--border);
  }
  .project-card.featured .project-body { justify-content: center; padding: 2.2rem; }
  .project-card.featured h3 { font-size: 1.7rem; }
}

/* ============================================================
   EXPERIENCE — vertical timeline
   ============================================================ */
.timeline { position: relative; max-width: 760px; }
.timeline::before {
  content: "";
  position: absolute;
  left: 7px; top: 6px; bottom: 6px;
  width: 2px;
  background: var(--border);
}
.timeline-item { position: relative; padding: 0 0 2.2rem 2.4rem; }
.timeline-item:last-child { padding-bottom: 0; }
.timeline-dot {
  position: absolute; left: 0; top: 6px;
  width: 16px; height: 16px;
  border-radius: 50%;
  background: var(--bg);
  border: 3px solid var(--accent);
  box-shadow: 0 0 0 4px var(--accent-soft);
}
.timeline-meta {
  display: flex; flex-wrap: wrap; align-items: baseline;
  gap: 0.4rem 0.9rem;
}
.timeline-content h3 { font-size: 1.15rem; margin: 0; }
.timeline-date {
  font-family: var(--font-display);
  font-size: 0.82rem;
  color: var(--accent);
}
.timeline-org { color: var(--text); font-weight: 600; margin: 0.2rem 0 0.6rem; }
.timeline-content ul { display: grid; gap: 0.35rem; }
.timeline-content li {
  position: relative; padding-left: 1.1rem;
  color: var(--text-dim); font-size: 0.95rem;
}
.timeline-content li::before {
  content: "▹"; position: absolute; left: 0; color: var(--accent);
}

/* Experience: timeline on the left, dimmed portrait on the right */
.experience-layout {
  display: flex;
  align-items: flex-start;
  gap: clamp(2rem, 5vw, 4rem);
}
.experience-layout .timeline { flex: 1 1 auto; }
.experience-pic {
  flex: 0 0 auto;
  width: clamp(200px, 26vw, 320px);
  align-self: stretch;
  object-fit: cover;
  border-radius: 14px;
  /* Keep it quiet so it doesn't compete with the job history */
  opacity: 0.4;
  filter: grayscale(35%) brightness(0.7) contrast(0.95);
  transition: opacity 0.35s ease, filter 0.35s ease;
}
.experience-pic:hover {
  opacity: 0.75;
  filter: grayscale(0%) brightness(0.9) contrast(1);
}
@media (max-width: 720px) {
  .experience-pic { display: none; }
}

/* ============================================================
   CONTACT
   ============================================================ */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: clamp(2rem, 6vw, 4rem);
  align-items: start;
}
.contact-intro > p { color: var(--text-dim); max-width: 42ch; }
.contact-links { margin-top: 1.5rem; display: grid; gap: 0.7rem; }
.contact-links a {
  display: inline-flex; align-items: center; gap: 0.6rem;
  color: var(--text); font-weight: 500;
  transition: color var(--transition);
  width: fit-content;
}
.contact-links a:hover { color: var(--accent); }

.contact-form {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: clamp(1.4rem, 4vw, 2rem);
  display: grid;
  gap: 1rem;
}
.field { display: grid; gap: 0.4rem; }
.field label { font-size: 0.85rem; font-weight: 600; color: var(--text-dim); }
.field input, .field textarea {
  width: 100%;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 0.75rem 0.9rem;
  color: var(--text);
  font: inherit;
  transition: border-color var(--transition);
}
.field input:focus, .field textarea:focus { outline: none; border-color: var(--accent); }
.field textarea { resize: vertical; }
.contact-form .btn { justify-self: start; }
.form-note { margin: 0; font-size: 0.9rem; color: var(--accent); min-height: 1.2em; }

/* ============================================================
   FOOTER
   ============================================================ */
.site-footer {
  border-top: 1px solid var(--border);
  background: var(--bg-alt);
  padding: 2rem 0;
}
.footer-inner {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}
.footer-copy { margin: 0; color: var(--text-dim); font-size: 0.9rem; }
.footer-links { display: flex; gap: 1.3rem; }
.footer-links a { color: var(--text-dim); font-size: 0.9rem; transition: color var(--transition); }
.footer-links a:hover { color: var(--accent); }
.back-to-top {
  color: var(--accent); font-weight: 600; font-size: 0.9rem;
  font-family: var(--font-display);
}

/* ============================================================
   Scroll reveal animation
   ============================================================ */
.reveal {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}
.reveal.is-visible { opacity: 1; transform: none; }

/* ============================================================
   Responsive
   ============================================================ */
@media (max-width: 860px) {
  .about-grid { grid-template-columns: 1fr; text-align: left; }
  .about-photo { max-width: 300px; }
  .contact-grid { grid-template-columns: 1fr; }
}

@media (max-width: 720px) {
  .nav-toggle { display: flex; }
  .nav-menu {
    position: fixed;
    inset: 64px 0 auto 0;
    flex-direction: column;
    align-items: flex-start;
    gap: 1.2rem;
    background: var(--bg-alt);
    border-bottom: 1px solid var(--border);
    padding: 1.5rem var(--pad) 2rem;
    transform: translateY(-140%);
    transition: transform var(--transition);
    box-shadow: var(--shadow);
  }
  .nav-menu.open { transform: translateY(0); }
  .projects-grid { grid-template-columns: 1fr; }
}

@media (max-width: 400px) {
  .hero-stats { gap: 1.2rem 2rem; }
  .btn { width: 100%; justify-content: center; }
  .hero-cta { width: 100%; }
}

/* ============================================================
   Reduced motion — respect user preference
   ============================================================ */
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after {
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.001ms !important;
  }
  .reveal { opacity: 1; transform: none; }
}