/* ============================================================
   Sebastian Mukuria — personal site
   Theme: Terminal dark
   ============================================================ */

:root {
  --bg:        #0E0F11;
  --bg-elev:   #16181C;
  --bg-elev-2: #1C1F24;
  --text:      #E8E8E3;
  --muted:     #9097A0;
  --faint:     #5C636D;
  --border:    rgba(255, 255, 255, 0.08);
  --border-2:  rgba(255, 255, 255, 0.14);
  --green:     #4ADE80;
  --cyan:      #38BDF8;
  --accent:    var(--green);

  --mono: "JetBrains Mono", ui-monospace, "SF Mono", Menlo, Consolas, monospace;
  --sans: "Inter", system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;

  --maxw: 760px;
  --gap:  clamp(3.5rem, 9vw, 6rem);
}

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

html { scroll-behavior: smooth; }
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } }

body {
  background: var(--bg);
  color: var(--text);
  font-family: var(--sans);
  font-size: 16px;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  overflow-x: hidden;
}

/* subtle ambient glow */
body::before {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 0;
  background:
    radial-gradient(60rem 40rem at 80% -10%, rgba(74, 222, 128, 0.06), transparent 60%),
    radial-gradient(50rem 40rem at -10% 10%, rgba(56, 189, 248, 0.05), transparent 60%);
}

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

.wrap {
  position: relative;
  z-index: 1;
  width: 100%;
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 0 clamp(1.25rem, 5vw, 2rem);
}

/* ---------- top nav ---------- */
.nav {
  position: sticky;
  top: 0;
  z-index: 50;
  backdrop-filter: blur(10px);
  background: color-mix(in srgb, var(--bg) 78%, transparent);
  border-bottom: 1px solid var(--border);
}
.nav__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  height: 56px;
}
.nav__brand {
  font-family: var(--mono);
  font-weight: 700;
  font-size: 0.95rem;
  letter-spacing: -0.02em;
}
.nav__brand .dot { color: var(--accent); }
.nav__links {
  display: flex;
  gap: 1.25rem;
  font-family: var(--mono);
  font-size: 0.8rem;
  color: var(--muted);
}
.nav__links a { transition: color 0.18s; }
.nav__links a:hover { color: var(--text); }
@media (max-width: 560px) {
  .nav__links { gap: 0.9rem; font-size: 0.72rem; }
  .nav__links a[data-optional] { display: none; }
}

/* ---------- section scaffolding ---------- */
section { padding-block: var(--gap); }
.label {
  font-family: var(--mono);
  font-size: 0.78rem;
  letter-spacing: 0.04em;
  color: var(--faint);
  margin-bottom: 1.75rem;
  display: flex;
  align-items: center;
  gap: 0.6rem;
}
.label::before { content: "//"; color: var(--accent); }

h2 { font-size: clamp(1.4rem, 4vw, 1.9rem); font-weight: 650; letter-spacing: -0.02em; }

/* ---------- hero ---------- */
.hero { padding-top: clamp(3rem, 8vw, 5rem); }
.hero__status {
  display: inline-flex;
  align-items: center;
  gap: 0.55rem;
  font-family: var(--mono);
  font-size: 0.78rem;
  color: var(--muted);
  padding: 0.3rem 0.7rem;
  border: 1px solid var(--border);
  border-radius: 999px;
  margin-bottom: 1.6rem;
}
.hero__status .pulse {
  width: 8px; height: 8px; border-radius: 50%;
  background: var(--green);
  box-shadow: 0 0 0 0 rgba(74, 222, 128, 0.6);
  animation: pulse 2.2s infinite;
}
@keyframes pulse {
  0%   { box-shadow: 0 0 0 0 rgba(74, 222, 128, 0.55); }
  70%  { box-shadow: 0 0 0 7px rgba(74, 222, 128, 0); }
  100% { box-shadow: 0 0 0 0 rgba(74, 222, 128, 0); }
}

.hero__name {
  font-size: clamp(2.6rem, 9vw, 4.6rem);
  font-weight: 700;
  line-height: 1.02;
  letter-spacing: -0.035em;
}
.hero__role {
  font-family: var(--mono);
  color: var(--accent);
  font-size: clamp(0.95rem, 2.6vw, 1.15rem);
  margin-top: 0.7rem;
}
.cursor {
  display: inline-block;
  width: 0.6ch; height: 1.05em;
  background: var(--accent);
  margin-left: 2px;
  transform: translateY(0.16em);
  animation: blink 1.05s steps(1) infinite;
}
@keyframes blink { 50% { opacity: 0; } }

.hero__lead {
  margin-top: 1.5rem;
  font-size: 1.08rem;
  color: #C7CCD2;
  max-width: 56ch;
}
.hero__lead strong { color: var(--text); font-weight: 600; }

.hero__top {
  display: flex;
  gap: clamp(1.5rem, 5vw, 2.5rem);
  align-items: flex-start;
}
.hero__photo {
  flex: 0 0 auto;
  width: clamp(110px, 26vw, 168px);
  aspect-ratio: 3 / 4;
  border-radius: 14px;
  object-fit: cover;
  border: 1px solid var(--border-2);
  filter: grayscale(0.15) contrast(1.02);
  transition: filter 0.4s, transform 0.4s;
}
.hero__photo:hover { filter: none; transform: translateY(-3px); }
@media (max-width: 560px) {
  .hero__top { flex-direction: column-reverse; align-items: flex-start; }
  .hero__photo { width: 130px; }
}

/* contact / links row */
.links {
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem;
  margin-top: 2rem;
}
.links a {
  font-family: var(--mono);
  font-size: 0.82rem;
  color: var(--muted);
  padding: 0.5rem 0.85rem;
  border: 1px solid var(--border);
  border-radius: 8px;
  transition: all 0.18s;
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
}
.links a:hover {
  color: var(--text);
  border-color: var(--border-2);
  background: var(--bg-elev);
  transform: translateY(-2px);
}
.links svg { width: 15px; height: 15px; fill: currentColor; }

/* ---------- experience ---------- */
.xp { display: flex; flex-direction: column; }
.xp__item {
  display: grid;
  grid-template-columns: 52px 1fr;
  gap: 1.1rem;
  padding: 1.6rem 0;
  border-top: 1px solid var(--border);
}
.xp__item:last-child { border-bottom: 1px solid var(--border); }

.chip {
  width: 52px; height: 52px;
  border-radius: 12px;
  background: #fff;
  display: grid;
  place-items: center;
  padding: 8px;
  overflow: hidden;
  opacity: 0.9;
  transition: opacity 0.2s, transform 0.2s;
}
.chip img { max-width: 100%; max-height: 100%; object-fit: contain; }
.xp__item:hover .chip, .edu__item:hover .chip { opacity: 1; transform: translateY(-2px); }

.xp__head {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  justify-content: space-between;
  gap: 0.4rem 1rem;
}
.xp__org { font-size: 1.12rem; font-weight: 650; letter-spacing: -0.01em; }
.xp__date { font-family: var(--mono); font-size: 0.78rem; color: var(--faint); white-space: nowrap; }
.xp__role { font-family: var(--mono); font-size: 0.82rem; color: var(--accent); margin-top: 0.15rem; }
.xp__role .sep { color: var(--faint); }
.xp__bullets { list-style: none; margin-top: 0.8rem; display: flex; flex-direction: column; gap: 0.4rem; }
.xp__bullets li {
  position: relative;
  padding-left: 1.1rem;
  color: var(--muted);
  font-size: 0.94rem;
}
.xp__bullets li::before { content: "▸"; position: absolute; left: 0; color: var(--accent); opacity: 0.7; }

.tags { display: flex; flex-wrap: wrap; gap: 0.4rem; margin-top: 0.9rem; }
.tag {
  font-family: var(--mono);
  font-size: 0.72rem;
  color: var(--muted);
  padding: 0.2rem 0.55rem;
  border: 1px solid var(--border);
  border-radius: 6px;
}

/* ---------- projects ---------- */
.proj { display: flex; flex-direction: column; gap: 1.25rem; }
.card {
  border: 1px solid var(--border);
  border-radius: 16px;
  background: var(--bg-elev);
  overflow: hidden;
  transition: border-color 0.2s, transform 0.2s;
}
.card:hover { border-color: var(--border-2); transform: translateY(-3px); }
.card__media {
  background: linear-gradient(160deg, #12321f, #0c1a13);
  padding: 1.5rem;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.75rem;
}
.card__media img {
  width: 100%; border-radius: 8px; border: 1px solid var(--border);
  background: #0a0a0a;
}
.card__media img:first-child { grid-row: span 2; height: 100%; object-fit: cover; }
.card__body { padding: 1.4rem 1.5rem 1.6rem; }
.card__title { font-size: 1.15rem; font-weight: 650; display: flex; align-items: center; gap: 0.6rem; }
.card__title .chip { width: 30px; height: 30px; border-radius: 8px; padding: 5px; }
.card__meta { font-family: var(--mono); font-size: 0.76rem; color: var(--faint); margin-top: 0.3rem; }
.card__desc { color: var(--muted); margin-top: 0.7rem; font-size: 0.95rem; }

/* compact text project */
.card--text .card__body { padding: 1.3rem 1.5rem; }
.card__link {
  display: inline-block;
  margin-top: 0.9rem;
  font-family: var(--mono);
  font-size: 0.78rem;
  color: var(--accent);
  border-bottom: 1px solid transparent;
  transition: border-color 0.18s;
}
.card__link:hover { border-color: var(--accent); }

@media (max-width: 560px) {
  .card__media { grid-template-columns: 1fr 1fr; }
}

/* ---------- education & certs ---------- */
.edu { display: grid; grid-template-columns: 1fr 1fr; gap: 1rem; }
.edu__item {
  display: flex; gap: 0.9rem; align-items: center;
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 1rem 1.1rem;
  background: var(--bg-elev);
}
.edu__item .chip { width: 44px; height: 44px; }
.edu__name { font-weight: 600; font-size: 0.96rem; }
.edu__sub { font-family: var(--mono); font-size: 0.74rem; color: var(--faint); margin-top: 0.1rem; }
@media (max-width: 560px) { .edu { grid-template-columns: 1fr; } }

/* ---------- gallery / personal + Rudi minigame ---------- */
.gallery { display: grid; grid-template-columns: 220px 1fr; gap: 1.5rem; align-items: center; }
.gallery__note { color: var(--muted); }
.gallery__note .who { font-family: var(--mono); color: var(--accent); }
@media (max-width: 560px) { .gallery { grid-template-columns: 1fr; } }

.rudi { position: relative; user-select: none; }
.rudi__img {
  width: 100%; display: block; border-radius: 14px; border: 1px solid var(--border-2);
  filter: grayscale(0.1);
  cursor: pointer;
  transition: filter 0.3s, transform 0.18s ease;
}
.rudi__img:hover { filter: none; }
.rudi__img.pet { animation: wiggle 0.4s ease; }
@keyframes wiggle {
  0%,100% { transform: rotate(0); }
  25% { transform: rotate(-3deg) scale(1.03); }
  75% { transform: rotate(3deg) scale(1.03); }
}
.rudi.done .rudi__img { animation: spin 0.7s ease; filter: none; border-color: var(--green); }
@keyframes spin { 100% { transform: rotate(360deg) scale(1.04); } }

.rudi__tip {
  position: absolute; top: 8px; right: 8px;
  font-family: var(--mono); font-size: 0.68rem; color: var(--text);
  background: color-mix(in srgb, var(--bg) 70%, transparent);
  backdrop-filter: blur(4px);
  padding: 0.2rem 0.5rem; border-radius: 999px; border: 1px solid var(--border-2);
  pointer-events: none; transition: opacity 0.3s;
}
.rudi.done .rudi__tip { opacity: 0; }

/* floating hearts */
.heart {
  position: absolute; pointer-events: none; font-size: 1.1rem;
  animation: floatUp 0.9s ease-out forwards;
}
@keyframes floatUp {
  0%   { opacity: 1; transform: translateY(0) scale(0.7); }
  100% { opacity: 0; transform: translateY(-60px) scale(1.2); }
}

.game { margin-top: 1.2rem; font-family: var(--mono); }
.game__line { font-size: 0.82rem; color: var(--muted); }
.game__line .prompt { color: var(--accent); margin-right: 0.4rem; }
.game__pets { display: flex; gap: 0.35rem; margin-top: 0.6rem; font-size: 1.1rem; }
.game__pets span { filter: grayscale(1) opacity(0.35); transition: filter 0.25s, transform 0.25s; }
.game__pets span.on { filter: none; transform: scale(1.15); }
.game__count { font-size: 0.76rem; color: var(--faint); margin-top: 0.5rem; }
.game.unlocked .game__count { color: var(--green); }

.game__resume {
  display: inline-flex; align-items: center; gap: 0.45rem;
  margin-top: 0.85rem;
  font-size: 0.82rem; color: var(--bg); font-weight: 600;
  background: var(--green); padding: 0.5rem 0.9rem; border-radius: 8px;
  animation: popIn 0.45s ease;
}
.game__resume:hover { filter: brightness(1.08); transform: translateY(-2px); }
@keyframes popIn { 0% { opacity: 0; transform: scale(0.85); } 100% { opacity: 1; transform: scale(1); } }

/* résumé nav link locked/unlocked state */
#resumeNav .lockmsg { color: var(--faint); font-size: 0.72rem; }
#resumeNav[data-locked="false"] { color: var(--green); border-color: color-mix(in srgb, var(--green) 40%, transparent); }
#resumeNav[data-locked="false"] .lockmsg { display: none; }

/* ---------- footer ---------- */
.footer {
  border-top: 1px solid var(--border);
  padding-block: 2.5rem 3.5rem;
  font-family: var(--mono);
  font-size: 0.78rem;
  color: var(--faint);
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 0.6rem;
}
.footer a { color: var(--muted); }
.footer a:hover { color: var(--accent); }

/* ---------- scroll reveal ---------- */
.reveal { opacity: 0; transform: translateY(14px); transition: opacity 0.6s ease, transform 0.6s ease; }
.reveal.in { opacity: 1; transform: none; }
@media (prefers-reduced-motion: reduce) {
  .reveal { opacity: 1; transform: none; transition: none; }
}