/* ==========================================================================
   INTERACTIVE RESUME — retro side-scroller, vertical journey
   --------------------------------------------------------------------------
   Contrast note: the level skies are intentionally very dark. On a mid-tone
   teal sky, muted white text (0.72 alpha) only reaches ~3.7:1. Against these
   skies every text layer clears 6:1, and it sells the night-arcade look.
   ========================================================================== */

.ir {
  position: relative;
  z-index: 0;
  overflow: hidden;                 /* the player can swing past the edges */
  background: #0a0f1c;

  --ir-ink: #ffffff;
  --ir-body: rgba(255, 255, 255, 0.86);
  --ir-mute: rgba(255, 255, 255, 0.72);
  --ir-line: rgba(255, 255, 255, 0.14);
  --ir-panel: rgba(255, 255, 255, 0.06);
  --ir-coin: #fbbf24;
  --ir-pixel: 'Poppins', var(--font-heading);
}

/* ===================== LEVELS & SKIES ===================== */
.ir-level {
  position: relative;
  min-height: 100vh;
  padding: 14vh 0 16vh;
  display: flex;
  align-items: center;
  background: linear-gradient(180deg, var(--sky-a) 0%, var(--sky-b) 100%);
}

#level-1 { --sky-a: #0a0f1c; --sky-b: #10233a; padding-top: calc(70px + 12vh); }
#level-2 { --sky-a: #0a2b28; --sky-b: #0e3a44; }
#level-3 { --sky-a: #0b1a2e; --sky-b: #123047; }
#level-4 { --sky-a: #1b0f36; --sky-b: #2b1259; }
#level-5 { --sky-a: #2a1206; --sky-b: #3a1a08; }
#level-6 { --sky-a: #06231f; --sky-b: #0b2f2c; }
#level-7 { --sky-a: #2a1e05; --sky-b: #3a2a08; }
#level-8 { --sky-a: #0a0f1c; --sky-b: #0b2f2c; }

.ir-content {
  position: relative;
  z-index: 3;
  width: 100%;
  max-width: 900px;
  margin: 0 auto;
  padding: 0 var(--spacing-lg);
}

/* ===================== SCENERY (decorative) ===================== */
.ir-scene {
  position: absolute;
  inset: 0;
  z-index: 0;
  pointer-events: none;
}

.ir-star,
.ir-cloud,
.ir-hill {
  position: absolute;
  left: var(--x);
  top: var(--y);
}

.ir-star {
  width: 3px;
  height: 3px;
  background: #fff;
  box-shadow: 0 0 6px 1px rgba(255, 255, 255, 0.6);
  opacity: 0.85;
  animation: irTwinkle 3.2s ease-in-out infinite;
}

.ir-star:nth-of-type(2n) { animation-delay: 0.9s; }
.ir-star:nth-of-type(3n) { animation-delay: 1.7s; }

@keyframes irTwinkle {
  0%, 100% { opacity: 0.25; transform: scale(1); }
  50%      { opacity: 0.95; transform: scale(1.5); }
}

/* Blocky pixel cloud built from box-shadows (no images). */
.ir-cloud {
  width: 18px;
  height: 6px;
  background: rgba(255, 255, 255, 0.10);
  box-shadow:
     18px    0 0 rgba(255, 255, 255, 0.10),
     36px    0 0 rgba(255, 255, 255, 0.10),
      9px  -6px 0 rgba(255, 255, 255, 0.10),
     27px  -6px 0 rgba(255, 255, 255, 0.10),
     18px -12px 0 rgba(255, 255, 255, 0.10);
  transform: translate3d(0, calc(var(--lvl-p, 0) * var(--drift, 40px)), 0) scale(var(--s, 2));
}

.ir-cloud.ir-far  { --drift: 26px; --s: 1.6; opacity: 0.7; }
.ir-cloud.ir-near { --drift: 70px; --s: 2.6; opacity: 1; }

.ir-hill {
  top: auto;
  bottom: 46px;
  width: 260px;
  height: 130px;
  border-radius: 50% 50% 0 0 / 100% 100% 0 0;
  background: rgba(255, 255, 255, 0.04);
  transform: translate3d(0, calc(var(--lvl-p, 0) * var(--drift, 30px)), 0);
}

.ir-hill.ir-far  { --drift: 18px; }
.ir-hill.ir-near { --drift: 52px; width: 340px; height: 160px; }

/* Pixel-brick ground strip at the foot of every level. */
.ir-ground {
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  height: 46px;
  z-index: 1;
  background:
    repeating-linear-gradient(90deg,
      rgba(255, 255, 255, 0.07) 0 22px,
      rgba(255, 255, 255, 0.03) 22px 24px),
    linear-gradient(180deg, rgba(255, 255, 255, 0.10) 0 4px, rgba(0, 0, 0, 0.35) 4px 100%);
  border-top: 2px solid rgba(255, 255, 255, 0.18);
}

/* ===================== THE RAIL THE PLAYER RIDES ===================== */
.ir-spine {
  position: absolute;
  inset: 0;
  z-index: 1;
  width: 100%;
  height: 100%;
  pointer-events: none;
}

.ir-spine-bg,
.ir-spine-fg {
  fill: none;
  stroke-linecap: round;
}

.ir-spine-bg { stroke: rgba(255, 255, 255, 0.10); stroke-width: 4; }

.ir-spine-fg {
  stroke: var(--primary-color);
  stroke-width: 4;
  filter: drop-shadow(0 0 6px rgba(85, 214, 170, 0.55));
}

/* ===================== PLAYER ===================== */
.ir-player {
  position: absolute;
  left: 0;
  top: 0;
  z-index: 2;
  width: 36px;
  height: 48px;
  margin: -44px 0 0 -18px;         /* stand ON the rail, centred horizontally */
  pointer-events: none;
  will-change: transform;
}

.ir-player svg { animation: irBob 0.6s steps(2) infinite; }

@keyframes irBob {
  0%, 100% { transform: translateY(0); }
  50%      { transform: translateY(-2px); }
}

/* Uses the independent `scale` property, not `transform`: the bob animation
   already owns `transform`, and would otherwise overwrite the flip. */
.ir-player.is-flipped svg { scale: -1 1; }

/* ===================== HUD ===================== */
.ir-hud {
  position: fixed;
  left: 18px;
  bottom: 18px;
  z-index: 900;
  display: none;                   /* revealed by JS via .ir--ready */
  align-items: center;
  gap: 0.9rem;
  padding: 0.55rem 0.9rem;
  border-radius: var(--radius-md);
  background: rgba(6, 10, 18, 0.82);
  border: 2px solid rgba(255, 255, 255, 0.16);
  backdrop-filter: blur(6px);
  color: var(--ir-ink);
  font-family: var(--ir-pixel);
  font-size: 0.78rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.45);
}

.ir--ready .ir-hud { display: flex; }

.ir-hud-block { display: inline-flex; align-items: center; gap: 0.35rem; }
.ir-hud-key { color: var(--ir-mute); }
.ir-hud-val b { color: var(--primary-light); font-size: 0.95rem; }
.ir-hud-sep { color: var(--ir-mute); margin: 0 1px; }
.ir-hud-name { color: var(--ir-ink); font-weight: 700; }

.ir-coin-face--hud { width: 12px; height: 12px; }

/* ===================== LEVEL RAIL (jump nav) ===================== */
.ir-rail {
  position: fixed;
  left: 22px;
  top: 50%;
  transform: translateY(-50%);
  z-index: 900;
}

.ir-rail ol { list-style: none; margin: 0; padding: 0; }
.ir-rail li { margin: 0.55rem 0; }

.ir-rail a {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  color: var(--ir-mute);
  text-decoration: none;
  font-family: var(--ir-pixel);
  font-size: 0.72rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.ir-dot {
  width: 11px;
  height: 11px;
  flex: none;
  background: rgba(255, 255, 255, 0.28);
  border: 2px solid rgba(255, 255, 255, 0.45);
  transition: background var(--transition-fast), transform var(--transition-fast);
}

.ir-rail-label {
  opacity: 0;
  transform: translateX(-4px);
  transition: opacity var(--transition-fast), transform var(--transition-fast);
}

.ir-rail a:hover,
.ir-rail a:focus-visible { color: var(--ir-ink); }

.ir-rail a:hover .ir-rail-label,
.ir-rail a:focus-visible .ir-rail-label { opacity: 1; transform: translateX(0); }

.ir-rail a[aria-current="true"] { color: var(--ir-ink); }
.ir-rail a[aria-current="true"] .ir-dot { background: var(--primary-color); border-color: var(--primary-light); transform: scale(1.15); }
.ir-rail a[aria-current="true"] .ir-rail-label { opacity: 1; transform: translateX(0); }

/* ===================== TYPOGRAPHY ===================== */
.ir-sign {
  display: inline-block;
  margin-bottom: var(--spacing-sm);
  padding: 0.3rem 0.75rem;
  background: rgba(0, 0, 0, 0.35);
  border: 2px solid var(--ir-line);
  color: var(--ir-mute);
  font-family: var(--ir-pixel);
  font-size: 0.72rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.ir-title {
  font-size: clamp(2.6rem, 7vw, 4.5rem);
  color: var(--ir-ink);
  margin-bottom: 0.4rem;
  text-shadow: 0 4px 0 rgba(0, 0, 0, 0.35);
}

.ir-subtitle {
  font-family: var(--ir-pixel);
  font-size: clamp(1.05rem, 2.4vw, 1.4rem);
  color: var(--primary-light);
  margin-bottom: var(--spacing-md);
}

.ir-heading {
  font-size: clamp(1.9rem, 4vw, 2.6rem);
  color: var(--ir-ink);
  margin-bottom: var(--spacing-md);
}

.ir-lede {
  max-width: 62ch;
  color: var(--ir-body);
  line-height: 1.8;
  margin-bottom: var(--spacing-lg);
}

.ir-hint {
  margin-top: var(--spacing-xl);
  color: var(--ir-mute);
  font-family: var(--ir-pixel);
  font-size: 0.78rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.ir-hint span { display: inline-block; animation: irNudge 1.6s ease-in-out infinite; }

@keyframes irNudge {
  0%, 100% { transform: translateY(0); }
  50%      { transform: translateY(5px); }
}

/* ===================== BUTTONS ===================== */
.ir-cta {
  display: flex;
  flex-wrap: wrap;
  gap: var(--spacing-sm);
}

.ir-btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.8rem 1.4rem;
  border: 2px solid rgba(255, 255, 255, 0.35);
  background: transparent;
  color: var(--ir-ink);
  font-family: var(--ir-pixel);
  font-size: 0.85rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  cursor: pointer;
  text-decoration: none;
  transition: transform var(--transition-fast), background var(--transition-fast), border-color var(--transition-fast);
}

.ir-btn:hover,
.ir-btn:focus-visible {
  color: var(--ir-ink);
  background: rgba(255, 255, 255, 0.10);
  border-color: rgba(255, 255, 255, 0.6);
  transform: translateY(-2px);
}

.ir-btn-primary {
  background: var(--primary-color);
  border-color: var(--primary-color);
  color: var(--on-primary);          /* 7.4:1 — white would be 1.8:1 */
}

.ir-btn-primary:hover,
.ir-btn-primary:focus-visible {
  background: var(--primary-light);
  border-color: var(--primary-light);
  color: var(--on-primary);
}

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

/* ===================== LEVEL 2 — COINS ===================== */
.ir-stack {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: var(--spacing-lg);
}

.ir-stack-group h3 {
  font-family: var(--ir-pixel);
  font-size: 0.85rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--primary-light);
  margin-bottom: var(--spacing-sm);
}

.ir-coins { list-style: none; margin: 0; padding: 0; display: flex; flex-wrap: wrap; gap: 0.45rem; }

.ir-coin {
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  padding: 0.32rem 0.7rem;
  background: var(--ir-panel);
  border: 1px solid var(--ir-line);
  border-radius: var(--radius-full);
  color: var(--ir-body);
  font-size: 0.82rem;
  font-weight: 600;
}

.ir-coin-face {
  width: 10px;
  height: 10px;
  flex: none;
  border-radius: 50%;
  background: var(--ir-coin);
  box-shadow: inset -2px -2px 0 rgba(0, 0, 0, 0.28);
}

.ir-coin.is-collected {
  animation: irPop 0.42s cubic-bezier(0.34, 1.56, 0.64, 1) both;
  border-color: rgba(251, 191, 36, 0.55);
}

@keyframes irPop {
  0%   { transform: scale(1); }
  45%  { transform: scale(1.16) translateY(-4px); }
  100% { transform: scale(1) translateY(0); }
}

/* ===================== LEVEL 3 — JOBS ===================== */
.ir-jobs { list-style: none; margin: 0; padding: 0; display: grid; gap: var(--spacing-lg); }

.ir-job {
  padding: var(--spacing-lg);
  background: var(--ir-panel);
  border: 1px solid var(--ir-line);
  border-left: 4px solid var(--primary-color);
  border-radius: var(--radius-lg);
}

.ir-job-head {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  flex-wrap: wrap;
  gap: 0.4rem;
}

.ir-job-head h3 { font-size: 1.15rem; color: var(--ir-ink); margin: 0; }
.ir-job-when { color: var(--ir-mute); font-family: var(--ir-pixel); font-size: 0.76rem; letter-spacing: 0.06em; }
.ir-job-org { color: var(--primary-light); font-weight: 600; margin: 0.25rem 0 0.75rem; }

.ir-job-points { margin: 0 0 var(--spacing-md); padding-left: 1.15rem; }
.ir-job-points li { color: var(--ir-body); line-height: 1.75; margin-bottom: 0.45rem; }
.ir-job-points b { color: var(--primary-light); }

.ir-job-tags { display: flex; flex-wrap: wrap; gap: 0.35rem; margin: 0; }
.ir-job-tags span {
  padding: 0.15rem 0.6rem;
  background: rgba(255, 255, 255, 0.08);
  border-radius: var(--radius-full);
  color: var(--ir-mute);
  font-size: 0.74rem;
  font-weight: 600;
}

/* ===================== LEVEL 4 — SCORES ===================== */
.ir-scores {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(190px, 1fr));
  gap: var(--spacing-lg);
}

.ir-score { text-align: center; }

.ir-num {
  display: block;
  font-family: var(--ir-pixel);
  font-size: clamp(2.2rem, 5vw, 3.2rem);
  font-weight: 800;
  color: var(--primary-light);
  line-height: 1.05;
  text-shadow: 0 4px 0 rgba(0, 0, 0, 0.35);
  font-variant-numeric: tabular-nums;
}

.ir-score-label { display: block; margin-top: 0.4rem; color: var(--ir-ink); font-weight: 600; }
.ir-score-sub { display: block; margin-top: 0.2rem; color: var(--ir-mute); font-size: 0.8rem; }

/* ===================== LEVELS 5–7 — CARDS ===================== */
.ir-cards { display: grid; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); gap: var(--spacing-lg); }
.ir-cards-3 { grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); }

.ir-card {
  padding: var(--spacing-lg);
  background: var(--ir-panel);
  border: 1px solid var(--ir-line);
  border-radius: var(--radius-lg);
  transition: transform var(--transition-base), border-color var(--transition-base);
}

.ir-card:hover { transform: translateY(-6px); border-color: rgba(255, 255, 255, 0.3); }

.ir-card-icon { font-size: 2rem; display: block; margin-bottom: var(--spacing-sm); }
.ir-card h3 { font-size: 1.1rem; color: var(--ir-ink); margin-bottom: 0.5rem; }
.ir-card p { color: var(--ir-body); line-height: 1.7; margin: 0 0 0.5rem; }
.ir-card p b { color: var(--primary-light); }
.ir-card-meta { color: var(--primary-light) !important; font-family: var(--ir-pixel); font-size: 0.78rem; letter-spacing: 0.05em; }
.ir-card-fine { color: var(--ir-mute) !important; font-size: 0.8rem !important; }
.ir-card-trophy { text-align: center; }

/* ===================== LEVEL 8 ===================== */
.ir-outro { margin-top: var(--spacing-xl); color: var(--ir-mute); }
.ir-outro a { color: var(--primary-light); text-decoration: underline; text-underline-offset: 3px; }
.ir-outro a:hover { color: #fff; }

/* ===================== RESPONSIVE ===================== */
/* Content column is 900px + 64px padding. The active rail label stays expanded,
   and the longest one ("Credentials") needs ~130px, so the rail only earns its
   place once each gutter clears that. Below 1280px it would sit on the text. */
@media (max-width: 1279px) {
  .ir-rail { display: none; }
}

@media (max-width: 768px) {
  .ir-level { min-height: auto; padding: 10vh 0 12vh; }
  #level-1 { padding-top: calc(70px + 8vh); }
  .ir-player { display: none; }            /* the rail is decorative on phones */
  .ir-spine { opacity: 0.35; }
  .ir-hud { left: 12px; bottom: 12px; font-size: 0.7rem; gap: 0.6rem; padding: 0.45rem 0.7rem; }
  .ir-hud-name { display: none; }
  .ir-cta { flex-direction: column; align-items: stretch; }
  .ir-btn { justify-content: center; }
}

/* ===================== REDUCED MOTION ===================== */
/* The whole conceit is motion, so when it's unwelcome we simply present the
   résumé statically: rail fully drawn, no player, no twinkle, no pop. */
@media (prefers-reduced-motion: reduce) {
  .ir-player { display: none; }
  .ir-star,
  .ir-hint span,
  .ir-coin.is-collected { animation: none !important; }
  .ir-cloud,
  .ir-hill { transform: none !important; }
  .ir-spine-fg { stroke-dashoffset: 0 !important; }
  .ir-card:hover,
  .ir-btn:hover { transform: none; }
}

/* ===================== NO JS ===================== */
/* Coins/scores/levels are plain text already; just make sure the decorative
   rail doesn't leave a dangling half-drawn stroke. */
.ir:not(.ir--ready) .ir-spine { opacity: 0; }