/* ═══════════════════════════════════════════════════════════
   Northgate University — Campus Solar Initiative
   Editorial deck · warm sun palette · Fraunces + Work Sans
   ═══════════════════════════════════════════════════════════ */

:root {
  --amber: #E09A2F;
  --amber-bright: #F2B25C;
  --amber-deep: #B87B1E;
  --green: #20493B;
  --green-2: #2F5E4C;
  --sage: #7D9B8A;
  --paper: #F7F3E9;
  --paper-2: #EFE8D6;
  --ink: #1B1A15;
  --ink-soft: #4E4A3F;
  --muted: #8B8577;
  --line: #D8CFBB;
  --white: #FBF8F0;

  --font-display: 'Fraunces', Georgia, serif;
  --font-body: 'Work Sans', 'Helvetica Neue', Arial, sans-serif;
  --font-mono: 'IBM Plex Mono', 'Courier New', monospace;

  --ease: cubic-bezier(0.22, 1, 0.36, 1);
  --pad: clamp(1.6rem, 5vw, 4.5rem);
}

* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  font-family: var(--font-body);
  font-size: 17px;
  line-height: 1.65;
  color: var(--ink);
  background: var(--paper);
  -webkit-font-smoothing: antialiased;
  overflow: hidden;
}
::selection { background: var(--amber); color: #fff; }
a { color: inherit; }
:focus-visible { outline: 2px solid var(--amber-deep); outline-offset: 3px; border-radius: 4px; }
img { display: block; max-width: 100%; }

/* ═══════════ deck & slides ═══════════ */
.deck { position: fixed; inset: 0; }
.slide {
  position: absolute; inset: 0;
  opacity: 0; visibility: hidden;
  transform: translateY(14px);
  transition: opacity 0.55s var(--ease), transform 0.55s var(--ease), visibility 0s linear 0.55s;
  overflow: hidden;
  display: flex; align-items: center;
  background: var(--paper);
}
.slide.active {
  opacity: 1; visibility: visible;
  transform: translateY(0);
  transition: opacity 0.55s var(--ease), transform 0.55s var(--ease), visibility 0s;
}
.slide-inner {
  width: min(1180px, 100%);
  margin: 0 auto;
  padding: clamp(4.2rem, 9vh, 6.5rem) var(--pad) clamp(3.4rem, 7vh, 5rem);
  position: relative;
  z-index: 2;
}

/* reveal choreography */
[data-reveal] { opacity: 0; transform: translateY(18px); transition: opacity 0.7s var(--ease), transform 0.7s var(--ease); }
.slide.active [data-reveal] { opacity: 1; transform: translateY(0); }
.slide.active [data-reveal="1"] { transition-delay: 0.10s; }
.slide.active [data-reveal="2"] { transition-delay: 0.18s; }
.slide.active [data-reveal="3"] { transition-delay: 0.26s; }
.slide.active [data-reveal="4"] { transition-delay: 0.34s; }
.slide.active [data-reveal="5"] { transition-delay: 0.42s; }
.slide.active [data-reveal="6"] { transition-delay: 0.50s; }
.slide.active [data-reveal="7"] { transition-delay: 0.58s; }

/* typography scaffolding */
.kicker {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  font-weight: 500;
  letter-spacing: 0.24em;
  text-transform: uppercase;
  color: var(--amber-deep);
  margin-bottom: 1rem;
  display: flex; align-items: center; gap: 0.7rem;
}
.kicker::before { content: ''; width: 30px; height: 1px; background: var(--amber); }
.kicker-light { color: var(--amber-bright); }
.kicker-light::before { background: var(--amber-bright); }
.s-head h2 {
  font-family: var(--font-display);
  font-weight: 500;
  font-size: clamp(2rem, 4.6vw, 3.3rem);
  line-height: 1.08;
  letter-spacing: -0.015em;
  margin-bottom: 1.6rem;
}
.s-note {
  margin-top: 1.6rem;
  font-size: 0.95rem;
  color: var(--ink-soft);
  max-width: 66ch;
}
.s-note strong { color: var(--ink); }

/* ═══════════ COVER ═══════════ */
.cover { background: var(--green); }
.cover-media { position: absolute; inset: 0; }
.cover-media img {
  width: 100%; height: 100%; object-fit: cover;
  object-position: 70% center;
}
.cover-scrim {
  position: absolute; inset: 0;
  background: linear-gradient(100deg, rgba(23, 34, 28, 0.92) 0%, rgba(23, 34, 28, 0.78) 34%, rgba(23, 34, 28, 0.34) 62%, rgba(23, 34, 28, 0.08) 100%);
}
.cover-inner {
  display: flex; flex-direction: column; justify-content: space-between;
  min-height: 100%;
  color: var(--white);
}
.cover-top { display: flex; align-items: center; gap: 1rem; padding-bottom: 1rem; }
.brand-word { font-family: var(--font-display); font-size: 1.2rem; font-weight: 500; letter-spacing: 0.02em; }
.mark { width: 46px; height: 46px; flex: none; }
.cover-body { max-width: 700px; }
.cover-title {
  font-family: var(--font-display);
  font-weight: 500;
  font-size: clamp(2.9rem, 7.5vw, 5.8rem);
  line-height: 1.02;
  letter-spacing: -0.02em;
  color: var(--white);
  margin-bottom: 1.4rem;
}
.cover-title em { font-style: italic; color: var(--amber-bright); font-weight: 400; }
.cover-sub {
  font-size: clamp(1.05rem, 1.6vw, 1.3rem);
  line-height: 1.6;
  color: rgba(251, 248, 240, 0.85);
  max-width: 54ch;
  margin-bottom: 2.2rem;
}
.cover-cta { display: flex; align-items: center; gap: 1.4rem; flex-wrap: wrap; }
.btn {
  display: inline-flex; align-items: center; gap: 0.6rem;
  font-family: var(--font-body); font-weight: 600;
  font-size: 1rem; text-decoration: none;
  border-radius: 999px; padding: 0.95rem 1.7rem;
  cursor: pointer; border: 1px solid transparent;
  transition: transform 0.3s var(--ease), background 0.3s ease, color 0.3s ease, box-shadow 0.3s ease;
}
.btn svg { width: 18px; height: 18px; }
.btn:hover { transform: translateY(-2px); }
.btn-sun { background: var(--amber); color: var(--green); box-shadow: 0 18px 40px -20px rgba(224, 154, 47, 0.7); }
.btn-sun:hover { background: var(--amber-bright); }
.cover-meta { font-family: var(--font-mono); font-size: 0.68rem; letter-spacing: 0.12em; text-transform: uppercase; color: rgba(251, 248, 240, 0.6); }
.cover-foot {
  display: flex; justify-content: space-between; gap: 1rem; flex-wrap: wrap;
  font-family: var(--font-mono); font-size: 0.66rem; letter-spacing: 0.14em;
  text-transform: uppercase; color: rgba(251, 248, 240, 0.55);
  padding-top: 1.2rem; border-top: 1px solid rgba(251, 248, 240, 0.16);
}
.slide.active .cover-title { animation: coverUp 0.9s var(--ease) 0.15s both; }
.slide.active .cover-sub { animation: coverUp 0.9s var(--ease) 0.3s both; }
.slide.active .cover-cta { animation: coverUp 0.9s var(--ease) 0.45s both; }
@keyframes coverUp { from { opacity: 0; transform: translateY(22px); } to { opacity: 1; transform: translateY(0); } }

/* ═══════════ big numbers ═══════════ */
.big-grid {
  display: grid; grid-template-columns: repeat(4, 1fr);
  gap: 1.1rem;
}
.big-card {
  background: var(--paper-2);
  border: 1px solid var(--line);
  border-top: 3px solid var(--amber);
  border-radius: 14px;
  padding: 1.5rem 1.4rem 1.3rem;
  display: flex; flex-direction: column; gap: 0.8rem;
  transition: transform 0.35s var(--ease), box-shadow 0.35s ease;
}
.big-card:hover { transform: translateY(-4px); box-shadow: 0 24px 44px -30px rgba(27, 26, 21, 0.45); }
.big-num {
  font-family: var(--font-display);
  font-size: clamp(2.1rem, 4vw, 3rem);
  font-weight: 600;
  letter-spacing: -0.02em;
  color: var(--green);
  line-height: 1;
  display: flex; align-items: baseline; gap: 0.35rem;
}
.big-num .unit { font-size: 0.5em; font-weight: 500; color: var(--amber-deep); font-family: var(--font-body); letter-spacing: 0; }
.big-label { font-size: 0.92rem; color: var(--ink-soft); line-height: 1.5; }
.big-grid-col { grid-template-columns: 1fr; gap: 0.9rem; }
.big-grid-col .big-card { padding: 1.2rem 1.3rem; }
.big-grid-col .big-num { font-size: clamp(1.9rem, 3.4vw, 2.6rem); }

/* ═══════════ objectives ═══════════ */
.obj-grid {
  display: grid; grid-template-columns: repeat(3, 1fr); gap: 1.1rem;
}
.obj-card {
  background: var(--paper-2);
  border: 1px solid var(--line);
  border-radius: 14px;
  padding: 1.5rem 1.4rem;
  display: flex; flex-direction: column; gap: 0.7rem;
  transition: transform 0.35s var(--ease), box-shadow 0.35s ease;
}
.obj-card:hover { transform: translateY(-4px); box-shadow: 0 24px 44px -30px rgba(27, 26, 21, 0.45); }
.obj-card-wide { grid-column: span 2; }
.ic { width: 26px; height: 26px; color: var(--amber-deep); flex: none; }
.obj-card h3 { font-family: var(--font-display); font-size: 1.35rem; font-weight: 600; }
.obj-card p { font-size: 0.94rem; color: var(--ink-soft); flex: 1; }
.obj-tag { font-family: var(--font-mono); font-size: 0.64rem; letter-spacing: 0.16em; text-transform: uppercase; color: var(--green-2); }

/* ═══════════ split layout ═══════════ */
.split { display: grid; grid-template-columns: 1.05fr 0.95fr; gap: clamp(2rem, 5vw, 4rem); align-items: center; }
.split-copy { min-width: 0; }
.split-copy-r { display: flex; flex-direction: column; gap: 1.2rem; }

/* ═══════════ why now ═══════════ */
.why-list { list-style: none; display: flex; flex-direction: column; gap: 1rem; margin-top: 0.6rem; }
.why-list li { display: flex; gap: 1.1rem; align-items: flex-start; }
.why-y {
  font-family: var(--font-display); font-weight: 600; font-size: 1.5rem;
  color: var(--amber-deep); flex: none; width: 5.2ch;
}
.why-list p { font-size: 0.95rem; color: var(--ink-soft); }
.why-list strong { color: var(--ink); display: block; }

/* ═══════════ charts & figures ═══════════ */
.split-fig { min-width: 0; }
.fig-caption {
  font-family: var(--font-mono); font-size: 0.66rem; letter-spacing: 0.14em;
  text-transform: uppercase; color: var(--muted); margin-bottom: 0.6rem;
}
.chart { width: 100%; height: auto; display: block; }
.chart .ax { font-family: var(--font-mono); font-size: 11px; fill: var(--muted); }
.draw {
  stroke-dasharray: 1200;
  stroke-dashoffset: 1200;
}
.slide.active .draw { animation: drawIn 1.8s var(--ease) 0.5s forwards; }
@keyframes drawIn { to { stroke-dashoffset: 0; } }
.split-fig-img img {
  border-radius: 16px;
  box-shadow: 0 30px 60px -34px rgba(27, 26, 21, 0.55);
  aspect-ratio: 4 / 3; object-fit: cover; width: 100%;
}
.mini-fig { margin-top: 1.2rem; }

/* ═══════════ specs ═══════════ */
.spec-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 0.9rem; }
.spec {
  background: var(--paper-2); border: 1px solid var(--line); border-radius: 12px;
  padding: 1.1rem 1.2rem; display: flex; flex-direction: column; gap: 0.3rem;
}
.spec-n { font-family: var(--font-display); font-weight: 600; font-size: 1.5rem; color: var(--green); line-height: 1.1; }
.spec-l { font-size: 0.84rem; color: var(--ink-soft); }

/* ═══════════ budget ═══════════ */
.budget-rows { display: flex; flex-direction: column; gap: 1rem; }
.brow { display: grid; grid-template-columns: 1fr 1.4fr auto; gap: 0.9rem; align-items: center; }
.b-label { font-size: 0.92rem; color: var(--ink-soft); }
.b-track { height: 10px; background: var(--line); border-radius: 999px; overflow: hidden; }
.b-fill {
  display: block; height: 100%; width: 0;
  background: linear-gradient(90deg, var(--amber-deep), var(--amber));
  border-radius: 999px;
  transition: width 1.1s var(--ease) 0.4s;
}
.slide.active .b-fill { width: var(--w); }
.b-val { font-family: var(--font-mono); font-size: 0.85rem; font-weight: 500; color: var(--ink); }
.budget-total {
  margin-top: 1.4rem; padding-top: 1.1rem; border-top: 2px solid var(--ink);
  display: flex; justify-content: space-between; align-items: baseline;
  font-size: 0.98rem; color: var(--ink-soft);
}
.budget-total strong { font-family: var(--font-display); font-size: 2rem; font-weight: 600; color: var(--green); }
.budget-total small { font-family: var(--font-mono); font-size: 0.72rem; color: var(--amber-deep); font-weight: 500; }

.fund-card {
  background: var(--green); color: var(--white);
  border-radius: 16px; padding: 1.6rem 1.6rem 1.4rem;
}
.fund-card h3 { font-family: var(--font-display); font-size: 1.3rem; font-weight: 500; margin-bottom: 1rem; }
.fund-row {
  display: flex; justify-content: space-between; gap: 1rem;
  padding: 0.55rem 0; border-bottom: 1px solid rgba(251, 248, 240, 0.16);
  font-size: 0.95rem;
}
.fund-row strong { font-family: var(--font-mono); font-weight: 500; }
.fund-total { border-bottom: none; margin-top: 0.3rem; font-weight: 600; }
.fund-total strong { color: var(--amber-bright); font-size: 1.15rem; }
.fund-note { margin-top: 0.8rem; font-size: 0.8rem; color: rgba(251, 248, 240, 0.72); line-height: 1.55; }
.fund-note strong { color: var(--amber-bright); }

/* ═══════════ gantt ═══════════ */
.gantt {
  background: var(--paper-2); border: 1px solid var(--line); border-radius: 14px;
  padding: 1.2rem 1.4rem 1.4rem; margin-top: 1rem;
}
.gantt-head { display: grid; grid-template-columns: 190px 1fr; gap: 1rem; margin-bottom: 0.8rem; }
.gantt-phase-label, .gantt-months {
  font-family: var(--font-mono); font-size: 0.62rem; letter-spacing: 0.14em;
  text-transform: uppercase; color: var(--muted);
}
.gantt-months { text-align: right; font-size: 0.56rem; letter-spacing: 0.06em; }
.gantt-row { display: grid; grid-template-columns: 190px 1fr; gap: 1rem; align-items: center; padding: 0.34rem 0; }
.gantt-label { font-size: 0.86rem; color: var(--ink-soft); }
.gantt-track {
  position: relative;
  display: grid; grid-template-columns: repeat(18, 1fr);
  background: repeating-linear-gradient(90deg, rgba(216, 207, 187, 0.5) 0 1px, transparent 1px calc(100%/18));
  height: 22px; border-radius: 5px;
}
.gantt-bar {
  height: 22px; border-radius: 5px;
  transform: scaleX(0); transform-origin: left;
}
.slide.active .gantt-bar { animation: growBar 0.8s var(--ease) forwards; }
@keyframes growBar { to { transform: scaleX(1); } }
.g0 { background: #B8A98C; } .g1 { background: var(--sage); } .g2 { background: var(--amber); }
.g3 { background: var(--green-2); } .g3b { background: var(--green); } .g4 { background: var(--amber-deep); }
.milestone {
  margin-top: 1.4rem; display: flex; gap: 1rem; align-items: flex-start;
  background: #EDE4CC; border: 1px solid var(--line); border-radius: 12px; padding: 1.1rem 1.3rem;
}
.milestone .ic { color: var(--amber-deep); margin-top: 0.2rem; }
.milestone p { font-size: 0.95rem; color: var(--ink-soft); }
.milestone strong { color: var(--ink); }

/* ═══════════ environmental ═══════════ */
.slide-green { background: var(--green); color: var(--white); }
.slide-green .s-head h2 { color: var(--white); }
.env-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 1.1rem; }
.env-card {
  background: rgba(251, 248, 240, 0.07);
  border: 1px solid rgba(251, 248, 240, 0.18);
  border-top: 3px solid var(--amber-bright);
  border-radius: 14px; padding: 1.4rem 1.3rem;
  display: flex; flex-direction: column; gap: 0.7rem;
}
.env-n { font-family: var(--font-display); font-weight: 600; font-size: clamp(1.8rem, 3.4vw, 2.5rem); color: var(--amber-bright); line-height: 1; display: flex; align-items: baseline; gap: 0.4rem; }
.env-n .unit { font-size: 0.5em; color: rgba(251, 248, 240, 0.85); font-family: var(--font-body); font-weight: 400; }
.env-l { font-size: 0.88rem; color: rgba(251, 248, 240, 0.8); line-height: 1.55; }
.env-note {
  margin-top: 1.5rem; display: flex; gap: 1rem; align-items: flex-start;
  background: rgba(251, 248, 240, 0.08); border-radius: 12px; padding: 1.1rem 1.3rem;
}
.env-note .ic { color: var(--amber-bright); margin-top: 0.2rem; }
.env-note p { font-size: 0.95rem; color: rgba(251, 248, 240, 0.85); max-width: 72ch; }

/* ═══════════ financials ═══════════ */
.fin-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 1.1rem; }
.fin-stat {
  background: var(--paper-2); border: 1px solid var(--line); border-radius: 14px;
  padding: 1.5rem 1.3rem; text-align: center;
  display: flex; flex-direction: column; gap: 0.6rem;
  transition: transform 0.35s var(--ease);
}
.fin-stat:hover { transform: translateY(-4px); }
.fin-n { font-family: var(--font-display); font-weight: 600; font-size: clamp(1.9rem, 3.6vw, 2.7rem); color: var(--green); line-height: 1; }
.fin-n small { font-size: 0.45em; color: var(--amber-deep); font-weight: 500; }
.fin-l { font-size: 0.86rem; color: var(--ink-soft); }
.fin-foot {
  margin-top: 1.6rem; padding: 1.1rem 1.3rem;
  background: #EDE4CC; border: 1px solid var(--line); border-radius: 12px;
  font-size: 0.88rem; color: var(--ink-soft); max-width: 84ch;
}

/* ═══════════ risks ═══════════ */
.risk-table {
  background: var(--paper-2); border: 1px solid var(--line); border-radius: 14px;
  overflow: hidden;
}
.risk-row {
  display: grid; grid-template-columns: 1fr 1.6fr; gap: 1.4rem;
  padding: 1.05rem 1.4rem; border-bottom: 1px solid var(--line);
  align-items: center;
}
.risk-row:last-child { border-bottom: none; }
.risk-head {
  background: var(--green); color: var(--white);
  font-family: var(--font-mono); font-size: 0.66rem; letter-spacing: 0.18em; text-transform: uppercase;
  padding: 0.7rem 1.4rem;
}
.risk-row > span:first-child { display: flex; align-items: center; gap: 0.7rem; font-weight: 600; font-size: 0.98rem; }
.risk-row .ic { width: 22px; height: 22px; color: var(--amber-deep); }
.risk-row > span:last-child { font-size: 0.92rem; color: var(--ink-soft); }

/* ═══════════ close ═══════════ */
.slide-close { background: var(--green); color: var(--white); }
.close-inner { text-align: center; display: flex; flex-direction: column; align-items: center; gap: 1.1rem; max-width: 860px; }
.mark-lg { width: 74px; height: 74px; }
.close-title { font-family: var(--font-display); font-weight: 500; font-size: clamp(2.4rem, 5.6vw, 4rem); line-height: 1.05; letter-spacing: -0.02em; }
.close-sub { font-size: 1.08rem; color: rgba(251, 248, 240, 0.82); max-width: 58ch; line-height: 1.65; }
.close-steps {
  display: grid; grid-template-columns: repeat(4, 1fr); gap: 0.9rem;
  margin-top: 0.8rem; width: 100%;
}
.cstep {
  background: rgba(251, 248, 240, 0.07); border: 1px solid rgba(251, 248, 240, 0.16);
  border-radius: 12px; padding: 1rem 1.1rem; text-align: left;
}
.cstep-n { font-family: var(--font-mono); font-size: 0.66rem; color: var(--amber-bright); letter-spacing: 0.14em; }
.cstep p { font-size: 0.88rem; color: rgba(251, 248, 240, 0.85); margin-top: 0.3rem; }
.cstep strong { color: var(--white); }
.close-contact {
  margin-top: 1.4rem; font-family: var(--font-mono); font-size: 0.68rem;
  letter-spacing: 0.08em; color: rgba(251, 248, 240, 0.55);
}
.close-contact a { color: var(--amber-bright); }

/* ═══════════ deck ui ═══════════ */
.deck-ui {
  position: fixed; left: 0; right: 0; bottom: 1.2rem; z-index: 100;
  display: flex; align-items: center; justify-content: center; gap: 1.1rem;
  padding: 0 1rem;
  pointer-events: none;
}
.deck-ui > * { pointer-events: auto; }
.nav-btn {
  width: 46px; height: 46px; border-radius: 50%;
  border: 1px solid var(--line); background: rgba(247, 243, 233, 0.9);
  color: var(--ink); cursor: pointer;
  display: grid; place-items: center;
  transition: background 0.25s ease, color 0.25s ease, transform 0.2s var(--ease);
}
.nav-btn svg { width: 20px; height: 20px; }
.nav-btn:hover { background: var(--amber); color: var(--green); border-color: var(--amber); transform: translateY(-2px); }
.nav-btn-ghost { background: transparent; border-color: var(--line); }
.dots { display: flex; gap: 0.42rem; align-items: center; }
.dot {
  width: 9px; height: 9px; border-radius: 50%;
  background: var(--line); border: none; cursor: pointer; padding: 0;
  transition: background 0.25s ease, transform 0.25s var(--ease);
}
.dot:hover { background: var(--amber); }
.dot.on { background: var(--amber-deep); transform: scale(1.35); }
.counter {
  font-family: var(--font-mono); font-size: 0.72rem; letter-spacing: 0.14em;
  color: var(--ink-soft); min-width: 6ch; text-align: center;
}
.key-hint {
  position: fixed; right: 1.1rem; bottom: 1.4rem; z-index: 99;
  font-family: var(--font-mono); font-size: 0.6rem; letter-spacing: 0.1em;
  text-transform: uppercase; color: var(--muted);
}
.progress {
  position: fixed; top: 0; left: 0; height: 3px; width: 100%; z-index: 200;
  background: linear-gradient(90deg, var(--amber-deep), var(--amber-bright));
  transform: scaleX(0); transform-origin: left;
  transition: transform 0.4s var(--ease);
}

/* ═══════════ responsive ═══════════ */
@media (max-width: 1020px) {
  .big-grid { grid-template-columns: repeat(2, 1fr); }
  .obj-grid { grid-template-columns: repeat(2, 1fr); }
  .obj-card-wide { grid-column: span 2; }
  .env-grid { grid-template-columns: repeat(2, 1fr); }
  .fin-grid { grid-template-columns: repeat(2, 1fr); }
  .split { grid-template-columns: 1fr; gap: 1.6rem; overflow-y: auto; }
  .close-steps { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 720px) {
  body { font-size: 15px; }
  .big-grid { grid-template-columns: 1fr 1fr; }
  .big-num { font-size: 1.9rem; }
  .obj-grid { grid-template-columns: 1fr; }
  .obj-card-wide { grid-column: span 1; }
  .spec-grid { grid-template-columns: 1fr; }
  .brow { grid-template-columns: 1fr auto; }
  .b-track { grid-column: 1 / -1; grid-row: 2; }
  .gantt-head, .gantt-row { grid-template-columns: 130px 1fr; }
  .gantt-months { display: none; }
  .env-grid { grid-template-columns: 1fr 1fr; }
  .env-n { font-size: 1.7rem; }
  .fin-grid { grid-template-columns: 1fr 1fr; }
  .risk-row { grid-template-columns: 1fr; gap: 0.4rem; }
  .close-steps { grid-template-columns: 1fr; }
  .cover-scrim { background: linear-gradient(180deg, rgba(23,34,28,0.9) 0%, rgba(23,34,28,0.82) 55%, rgba(23,34,28,0.5) 100%); }
  .deck-ui { bottom: 0.8rem; gap: 0.8rem; }
  .key-hint { display: none; }
  .cover-foot span:first-child { display: none; }
}

@media (max-width: 480px) {
  .big-grid { grid-template-columns: 1fr; }
  .env-grid { grid-template-columns: 1fr; }
  .fin-grid { grid-template-columns: 1fr; }
  .close-steps { grid-template-columns: 1fr; }
}

/* ═══════════ reduced motion ═══════════ */
@media (prefers-reduced-motion: reduce) {
  * { animation: none !important; transition: none !important; }
  .slide { transition: none; }
  [data-reveal] { opacity: 1; transform: none; }
  .b-fill { width: var(--w) !important; }
  .gantt-bar { transform: scaleX(1); }
  .draw { stroke-dashoffset: 0; }
}