/* =========================================================
   Design tokens — a technical drawing set.
   Dark = cyanotype (the original blueprint process: white/cyan
   lines on Prussian-blue paper). Light = diazo/blueline (the later
   process: blue lines on cream vellum). Toggling between them is
   literally switching reproduction methods, not an arbitrary skin.
   ========================================================= */
:root {
  --bg: #0b2b4e;
  --bg-elev: rgba(196, 222, 250, 0.045);
  --bg-elev-2: rgba(196, 222, 250, 0.08);
  --bg-solid: #0f335a;
  --ink: #e7f0fb;
  --ink-dim: #9db8dc;
  --ink-dimmer: #6f8bb3;
  --line: rgba(231, 240, 251, 0.28);
  --line-strong: rgba(231, 240, 251, 0.5);
  --border: rgba(231, 240, 251, 0.16);
  --border-strong: rgba(231, 240, 251, 0.32);
  --redline: #ff9142;
  --redline-soft: rgba(255, 145, 66, 0.14);
  --redline-ink: #241004;
  --success: #6bd68f;

  --font-display: "IBM Plex Sans Condensed", "Arial Narrow", sans-serif;
  --font-body: "IBM Plex Sans", -apple-system, sans-serif;
  --font-mono: "IBM Plex Mono", ui-monospace, monospace;

  --container: 1120px;
  --ease: cubic-bezier(0.22, 1, 0.36, 1);
  --ease-press: cubic-bezier(0.16, 1, 0.3, 1);
  --t: 320ms;
  --t-press: 110ms;
}

:root[data-theme="light"] {
  --bg: #eef3f9;
  --bg-elev: rgba(11, 43, 78, 0.035);
  --bg-elev-2: rgba(11, 43, 78, 0.065);
  --bg-solid: #e4ecf6;
  --ink: #0b2b4e;
  --ink-dim: #3f5f85;
  --ink-dimmer: #7791b0;
  --line: rgba(11, 43, 78, 0.3);
  --line-strong: rgba(11, 43, 78, 0.55);
  --border: rgba(11, 43, 78, 0.18);
  --border-strong: rgba(11, 43, 78, 0.34);
  --redline: #d9631e;
  --redline-soft: rgba(217, 99, 30, 0.12);
  --redline-ink: #fff7f0;
  --success: #1f8a4c;
}

* { 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(--ink);
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.6;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
  transition: background-color var(--t) var(--ease), color var(--t) var(--ease);
}

img, svg { max-width: 100%; display: block; }
ul { list-style: none; }
a { color: inherit; text-decoration: none; }

.skip-link {
  position: absolute; left: -999px; top: 0; z-index: 999;
  background: var(--redline); color: var(--redline-ink); padding: 10px 16px; font-weight: 600;
}
.skip-link:focus { left: 16px; top: 16px; }

a:focus-visible, button:focus-visible {
  outline: 2px solid var(--redline);
  outline-offset: 3px;
}

@media (prefers-reduced-transparency: reduce) {
  .nav, .nav-mobile { backdrop-filter: none !important; background: var(--bg-solid) !important; }
}
@media (prefers-contrast: more) {
  :root { --border: var(--line-strong); --ink-dim: var(--ink); }
}

/* =========================================================
   Page texture — graph paper grid + corner registration marks,
   present for the whole scroll, not just the hero.
   ========================================================= */
.grid-paper {
  position: fixed; inset: 0; z-index: 0; pointer-events: none;
  background-image:
    linear-gradient(var(--border) 1px, transparent 1px),
    linear-gradient(90deg, var(--border) 1px, transparent 1px),
    linear-gradient(var(--line) 1px, transparent 1px),
    linear-gradient(90deg, var(--line) 1px, transparent 1px);
  background-size: 8px 8px, 8px 8px, 80px 80px, 80px 80px;
  opacity: 0.5;
}
.reg-mark {
  position: fixed; z-index: 5; width: 18px; height: 18px; pointer-events: none;
}
.reg-mark::before, .reg-mark::after { content: ''; position: absolute; background: var(--line-strong); }
.reg-mark::before { top: 50%; left: 0; right: 0; height: 1px; transform: translateY(-50%); }
.reg-mark::after { left: 50%; top: 0; bottom: 0; width: 1px; transform: translateX(-50%); }
.reg-tl { top: 14px; left: 14px; } .reg-tr { top: 14px; right: 14px; }
.reg-bl { bottom: 14px; left: 14px; } .reg-br { bottom: 14px; right: 14px; }
@media (max-width: 720px) { .reg-mark { display: none; } }

/* =========================================================
   Nav
   ========================================================= */
.nav {
  position: fixed; top: 0; left: 0; right: 0; z-index: 100;
  backdrop-filter: blur(14px) saturate(140%);
  -webkit-backdrop-filter: blur(14px) saturate(140%);
  background: color-mix(in srgb, var(--bg) 78%, transparent);
  border-bottom: 1px solid var(--border);
  transition: background var(--t) var(--ease), border-color var(--t) var(--ease);
}
.nav-inner {
  max-width: var(--container); margin: 0 auto; padding: 14px 24px;
  display: flex; align-items: center; justify-content: space-between;
}
.logo-box { border: 1px solid var(--border-strong); padding: 6px 10px; transition: border-color var(--t) var(--ease); }
.logo-box:hover { border-color: var(--redline); }
.logo-mark { font-family: var(--font-mono); font-weight: 600; font-size: 0.95rem; letter-spacing: 0.04em; }
.nav-controls { display: flex; align-items: center; gap: 18px; }
.nav-links { display: flex; align-items: center; gap: 26px; font-family: var(--font-mono); font-size: 0.82rem; letter-spacing: 0.03em; text-transform: uppercase; }
.nav-links a:not(.nav-cta) { color: var(--ink-dim); transition: color var(--t) var(--ease); position: relative; padding: 4px 0; }
.nav-links a:not(.nav-cta):hover { color: var(--ink); }
.nav-links a:not(.nav-cta)::after {
  content: ''; position: absolute; left: 0; bottom: 0; width: 0; height: 1px; background: var(--redline);
  transition: width var(--t) var(--ease);
}
.nav-links a:not(.nav-cta):hover::after { width: 100%; }
.nav-cta {
  background: var(--redline); color: var(--redline-ink); padding: 8px 18px; font-weight: 600;
  border: 1px solid var(--redline);
  transition: transform var(--t) var(--ease), opacity var(--t) var(--ease);
}
.nav-cta:hover { transform: translateY(-2px); opacity: 0.9; }
.nav-cta:active { transform: translateY(0) scale(0.96); transition: transform var(--t-press) var(--ease-press); }

.theme-toggle {
  position: relative; width: 34px; height: 34px; display: flex; align-items: center; justify-content: center;
  background: transparent; border: 1px solid var(--border-strong); cursor: pointer; color: var(--ink);
  transition: border-color var(--t) var(--ease), transform var(--t-press) var(--ease-press);
}
.theme-toggle:hover { border-color: var(--redline); }
.theme-toggle:active { transform: scale(0.9); }
.theme-icon { position: absolute; width: 16px; height: 16px; transition: opacity var(--t) var(--ease); }
.theme-icon-light { opacity: 0; } .theme-icon-dark { opacity: 1; }
:root[data-theme="light"] .theme-icon-light { opacity: 1; }
:root[data-theme="light"] .theme-icon-dark { opacity: 0; }

.nav-toggle {
  display: none; flex-direction: column; justify-content: center; gap: 5px;
  width: 34px; height: 34px; background: transparent; border: 1px solid var(--border-strong); cursor: pointer;
  transition: transform var(--t-press) var(--ease-press);
}
.nav-toggle:active { transform: scale(0.92); }
.nav-toggle span { display: block; width: 16px; height: 1.5px; background: var(--ink); margin: 0 auto; transition: transform var(--t) var(--ease), opacity var(--t) var(--ease); }
.nav-toggle.open span:nth-child(1) { transform: translateY(6.5px) rotate(45deg); }
.nav-toggle.open span:nth-child(2) { opacity: 0; }
.nav-toggle.open span:nth-child(3) { transform: translateY(-6.5px) rotate(-45deg); }

.nav-mobile {
  display: flex; flex-direction: column; gap: 2px; padding: 8px 24px 20px;
  border-top: 1px solid var(--border);
  background: color-mix(in srgb, var(--bg) 92%, transparent);
  backdrop-filter: blur(14px);
  opacity: 0; transform: translateY(-6px); max-height: 0; overflow: hidden; pointer-events: none;
  transition: opacity var(--t) var(--ease), transform var(--t) var(--ease), max-height var(--t) var(--ease);
}
.nav-mobile.open { opacity: 1; transform: translateY(0); max-height: 300px; pointer-events: auto; padding-top: 12px; }
.nav-mobile a { padding: 12px 10px; font-family: var(--font-mono); font-size: 0.85rem; text-transform: uppercase; letter-spacing: 0.03em; color: var(--ink-dim); }
.nav-mobile a:hover { color: var(--ink); background: var(--bg-elev-2); }

/* =========================================================
   Hero
   ========================================================= */
.hero { position: relative; z-index: 1; min-height: 100svh; display: flex; align-items: center; padding: 120px 24px 60px; }
.hero-inner { max-width: var(--container); margin: 0 auto; width: 100%; display: grid; grid-template-columns: 1.15fr 1fr; gap: 40px; align-items: center; }
.hero-copy { max-width: 620px; }

.eyebrow {
  font-family: var(--font-mono); font-size: 0.78rem; letter-spacing: 0.05em; color: var(--ink-dim);
  margin-bottom: 26px; display: inline-flex; align-items: center; gap: 9px; text-transform: uppercase;
}
.led { width: 7px; height: 7px; border-radius: 50%; background: var(--success); box-shadow: 0 0 0 3px color-mix(in srgb, var(--success) 25%, transparent); flex-shrink: 0; }

.hero-title {
  font-family: var(--font-display); font-weight: 700; letter-spacing: 0.01em; text-transform: uppercase;
  font-size: clamp(3rem, 7.5vw, 5.5rem); line-height: 0.96; margin-bottom: 16px;
}
.hero-role {
  font-family: var(--font-mono); font-size: clamp(1rem, 1.6vw, 1.15rem); color: var(--redline);
  text-transform: uppercase; letter-spacing: 0.04em; margin-bottom: 22px;
}
.hero-sub { font-size: 1.05rem; line-height: 1.65; color: var(--ink-dim); margin-bottom: 32px; }
.hero-sub strong { color: var(--ink); font-weight: 600; }

.hero-actions { display: flex; gap: 14px; flex-wrap: wrap; margin-bottom: 44px; }
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  padding: 13px 26px; font-weight: 600; font-size: 0.92rem; font-family: var(--font-body);
  border: 1px solid transparent; cursor: pointer;
  transition: transform var(--t) var(--ease), box-shadow var(--t) var(--ease), background var(--t) var(--ease), border-color var(--t) var(--ease);
}
.btn:active { transform: scale(0.96) !important; transition: transform var(--t-press) var(--ease-press) !important; }
.btn-primary { background: var(--redline); color: var(--redline-ink); }
.btn-primary:hover { transform: translateY(-2px); box-shadow: 0 12px 26px -10px var(--redline-soft); }
.btn-ghost { background: transparent; color: var(--ink); border-color: var(--border-strong); }
.btn-ghost:hover { background: var(--bg-elev); border-color: var(--redline); transform: translateY(-2px); }

.spec-strip { display: flex; gap: 28px; flex-wrap: wrap; padding-top: 24px; border-top: 1px solid var(--border); }
.spec-item { display: flex; flex-direction: column; }
.spec-num { font-family: var(--font-mono); font-weight: 600; font-size: 1.5rem; color: var(--ink); }
.spec-num em { font-style: normal; color: var(--redline); }
.spec-label { font-family: var(--font-mono); font-size: 0.7rem; color: var(--ink-dimmer); text-transform: uppercase; letter-spacing: 0.03em; margin-top: 2px; }

.hero-diagram { color: var(--line-strong); }
.schematic-draw .draw-line { fill: none; stroke: currentColor; stroke-width: 1.4; }
.schematic-draw circle { fill: var(--bg); }
.schematic-draw rect { fill: none; }
.schematic-draw .draw-line > * {
  stroke-dasharray: 1400; stroke-dashoffset: 1400;
  animation: draw-on 1.8s var(--ease) forwards;
  animation-delay: 0.3s;
}
@keyframes draw-on { to { stroke-dashoffset: 0; } }
@media (prefers-reduced-motion: reduce) { .schematic-draw .draw-line > * { animation: none; stroke-dashoffset: 0; } }

.scroll-cue {
  position: absolute; bottom: 26px; left: 50%; transform: translateX(-50%);
  display: flex; flex-direction: column; align-items: center; gap: 8px;
  font-family: var(--font-mono); font-size: 0.68rem; letter-spacing: 0.1em; color: var(--ink-dimmer);
}
.scroll-cue span { width: 1px; height: 26px; background: var(--line-strong); position: relative; overflow: hidden; }
.scroll-cue span::after {
  content: ''; position: absolute; top: -100%; left: 0; width: 100%; height: 100%; background: var(--redline);
  animation: scrollcue 1.8s infinite var(--ease);
}
@keyframes scrollcue { 0% { top: -100%; } 60% { top: 100%; } 100% { top: 100%; } }
@media (prefers-reduced-motion: reduce) { .scroll-cue span::after { animation: none; opacity: 0; } }

/* =========================================================
   Sheets (sections)
   ========================================================= */
.sheet { position: relative; z-index: 1; padding: 80px 24px; border-top: 1px solid var(--border); scroll-margin-top: 90px; }
.sheet-inner { max-width: var(--container); margin: 0 auto; }
.sheet-head { margin-bottom: 40px; }
.sheet-kicker {
  font-family: var(--font-mono); font-size: 0.78rem; font-weight: 500; color: var(--redline);
  text-transform: uppercase; letter-spacing: 0.05em; margin-bottom: 14px;
  display: inline-flex; align-items: center; gap: 10px;
}
.sheet-kicker::after { content: ''; width: 40px; height: 1px; background: var(--line-strong); }
.sheet-title {
  font-family: var(--font-display); font-weight: 700; text-transform: uppercase; letter-spacing: 0.005em;
  font-size: clamp(1.6rem, 3.2vw, 2.3rem); line-height: 1.15; max-width: 680px;
}
.sheet-lead { color: var(--ink-dim); font-size: 1.05rem; line-height: 1.7; max-width: 720px; margin-bottom: 40px; }

/* ===== Spec grid (About) ===== */
.spec-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 1px; background: var(--border); border: 1px solid var(--border); }
.spec-card { background: var(--bg); padding: 26px 22px; transition: background var(--t) var(--ease); }
.spec-card:hover { background: var(--bg-elev); }
.spec-icon { width: 26px; height: 26px; color: var(--redline); margin-bottom: 16px; }
.spec-code { display: block; font-family: var(--font-mono); font-size: 0.72rem; color: var(--ink-dimmer); letter-spacing: 0.04em; margin-bottom: 10px; }
.spec-card h3 { font-family: var(--font-display); font-weight: 700; text-transform: uppercase; font-size: 1rem; letter-spacing: 0.01em; margin-bottom: 8px; }
.spec-card p { color: var(--ink-dim); font-size: 0.88rem; line-height: 1.55; }

/* ===== Revision history table (Experience) ===== */
.rev-table { border: 1px solid var(--border); }
.rev-table-head {
  display: grid; grid-template-columns: 60px 110px 220px 1fr; gap: 16px;
  padding: 12px 20px; border-bottom: 1px solid var(--border);
  font-family: var(--font-mono); font-size: 0.7rem; text-transform: uppercase; letter-spacing: 0.06em; color: var(--ink-dimmer);
}
.rev-row {
  display: grid; grid-template-columns: 60px 110px 220px 1fr; gap: 16px;
  padding: 24px 20px; border-bottom: 1px solid var(--border);
}
.rev-row:last-child { border-bottom: none; }
.rev-tag {
  font-family: var(--font-mono); font-weight: 600; font-size: 1.1rem; color: var(--redline);
  width: 30px; height: 30px; border: 1px solid var(--redline); display: flex; align-items: center; justify-content: center;
}
.rev-date { font-family: var(--font-mono); font-size: 0.78rem; color: var(--ink-dimmer); line-height: 1.4; }
.rev-role h3 { font-family: var(--font-display); font-weight: 700; text-transform: uppercase; font-size: 1.05rem; margin-bottom: 4px; }
.rev-org { font-family: var(--font-mono); font-size: 0.8rem; color: var(--redline); }
.rev-desc ul { display: flex; flex-direction: column; gap: 9px; }
.rev-desc li { position: relative; padding-left: 16px; color: var(--ink-dim); font-size: 0.93rem; line-height: 1.6; }
.rev-desc li::before { content: '—'; position: absolute; left: 0; color: var(--ink-dimmer); }
.rev-desc strong { color: var(--ink); font-weight: 600; }

/* ===== Bill of materials (Skills) ===== */
.bom { display: grid; grid-template-columns: repeat(4, 1fr); gap: 32px; }
.bom-cat {
  font-family: var(--font-mono); font-size: 0.75rem; text-transform: uppercase; letter-spacing: 0.05em;
  color: var(--ink-dimmer); padding-bottom: 10px; margin-bottom: 14px; border-bottom: 1px solid var(--border);
}
.bom-list { display: flex; flex-direction: column; gap: 10px; }
.bom-list li { display: flex; align-items: baseline; gap: 10px; font-size: 0.94rem; }
.bom-code { font-family: var(--font-mono); font-size: 0.72rem; color: var(--redline); flex-shrink: 0; width: 34px; }

/* ===== Detail drawings (Highlights) ===== */
.project-tag {
  display: inline-block; font-family: var(--font-mono); font-size: 0.68rem; letter-spacing: 0.04em;
  color: var(--redline); background: var(--redline-soft); padding: 4px 10px; text-transform: uppercase; margin-bottom: 10px;
}
.fig-featured {
  display: grid; grid-template-columns: 1.3fr 1fr; gap: 32px; align-items: center;
  border: 1px solid var(--border); padding: 28px; margin-bottom: 20px;
}
.fig-diagram { position: relative; }
.fig-label {
  position: absolute; top: -14px; left: 0; font-family: var(--font-mono); font-size: 0.72rem;
  color: var(--ink-dimmer); background: var(--bg); padding: 0 8px; letter-spacing: 0.05em;
}
.fig-svg { width: 100%; height: auto; color: var(--line-strong); }
.fig-ink rect, .fig-ink line, .fig-ink circle { fill: none; stroke: currentColor; stroke-width: 1.3; }
.fig-ink .fig-primary { stroke: var(--redline); }
.fig-ink .fig-dim line { stroke: var(--ink-dimmer); stroke-width: 1; }
.fig-text, .fig-text-sm { font-family: var(--font-mono); fill: var(--ink-dim); }
.fig-text { font-size: 11px; }
.fig-text-sm { font-size: 9.5px; }
.fig-text-strong { fill: var(--redline); font-weight: 600; }
.fig-caption h3 { font-family: var(--font-display); font-weight: 700; text-transform: uppercase; font-size: 1.3rem; margin-bottom: 10px; }
.fig-caption p { color: var(--ink-dim); font-size: 0.94rem; line-height: 1.6; }

.fig-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1px; background: var(--border); border: 1px solid var(--border); }
.fig-card { background: var(--bg); padding: 24px 22px; position: relative; transition: background var(--t) var(--ease); }
.fig-card:hover { background: var(--bg-elev); }
.fig-card .fig-label { position: static; background: none; padding: 0; display: block; margin-bottom: 10px; }
.fig-card h3 { font-family: var(--font-display); font-weight: 700; text-transform: uppercase; font-size: 1rem; margin-bottom: 8px; }
.fig-card p { color: var(--ink-dim); font-size: 0.87rem; line-height: 1.55; }

.fig-card-link { display: flex; flex-direction: column; cursor: pointer; }
.fig-card-link:hover { background: var(--redline-soft); }
.fig-card-link .project-tag { color: var(--success); background: color-mix(in srgb, var(--success) 16%, transparent); }
.fig-card-visit {
  margin-top: 14px; font-family: var(--font-mono); font-size: 0.78rem; color: var(--redline);
  transition: transform var(--t) var(--ease); display: inline-block; width: fit-content;
}
.fig-card-link:hover .fig-card-visit { transform: translateX(4px); }

.sheet-note { margin-top: 24px; font-family: var(--font-mono); font-size: 0.8rem; color: var(--ink-dimmer); font-style: italic; }

/* ===== Title block (Contact + Education) ===== */
.title-sheet { padding-bottom: 60px; }
.title-block { position: relative; border: 1.5px solid var(--line-strong); }
.tb-row { display: grid; grid-template-columns: 1fr 1fr; border-bottom: 1px solid var(--border); }
.tb-row:last-child { border-bottom: none; }
.tb-cell { padding: 16px 20px; border-right: 1px solid var(--border); display: flex; flex-direction: column; gap: 4px; }
.tb-cell:last-child { border-right: none; }
.tb-cell-wide { grid-column: 1 / -1; }
.tb-row:has(.tb-cell-wide) { grid-template-columns: 1fr; }
.tb-label { font-family: var(--font-mono); font-size: 0.68rem; text-transform: uppercase; letter-spacing: 0.05em; color: var(--ink-dimmer); }
.tb-value { font-family: var(--font-body); font-weight: 600; font-size: 0.98rem; word-break: break-word; }
.tb-link { transition: color var(--t) var(--ease); }
.tb-link:hover { color: var(--redline); }
.tb-row-foot .tb-value { font-family: var(--font-mono); font-weight: 500; }

.stamp {
  position: absolute; top: -18px; right: 24px; z-index: 2;
  font-family: var(--font-mono); font-weight: 700; font-size: 0.78rem; text-align: center; line-height: 1.3;
  color: var(--success); border: 2px solid var(--success); border-radius: 50%;
  width: 78px; height: 78px; display: flex; align-items: center; justify-content: center;
  transform: rotate(-9deg); letter-spacing: 0.02em;
  background: var(--bg);
}

/* =========================================================
   Footer
   ========================================================= */
.footer { position: relative; z-index: 1; border-top: 1px solid var(--border); padding: 26px 24px; }
.footer-inner {
  max-width: var(--container); margin: 0 auto; display: flex; justify-content: space-between; align-items: center;
  flex-wrap: wrap; gap: 12px; color: var(--ink-dimmer); font-family: var(--font-mono); font-size: 0.78rem;
}
.back-top { color: var(--ink-dim); transition: color var(--t) var(--ease); }
.back-top:hover { color: var(--redline); }

/* =========================================================
   Reveal on scroll
   ========================================================= */
.reveal { opacity: 0; transform: translateY(18px); transition: opacity var(--t) var(--ease), transform var(--t) var(--ease); }
.reveal.in-view { opacity: 1; transform: translateY(0); }
@media (prefers-reduced-motion: reduce) { .reveal { transform: none; transition: opacity 200ms ease; } }

/* =========================================================
   Responsive
   ========================================================= */
@media (max-width: 980px) {
  .hero-inner { grid-template-columns: 1fr; }
  .hero-diagram { max-width: 320px; margin: 0 auto; opacity: 0.7; }
  .spec-grid { grid-template-columns: repeat(2, 1fr); }
  .bom { grid-template-columns: repeat(2, 1fr); }
  .fig-featured { grid-template-columns: 1fr; }
  .fig-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 720px) {
  .nav-links { display: none; }
  .nav-toggle { display: flex; }
  .hero { padding-top: 110px; }
  .hero-title { font-size: clamp(2.4rem, 12vw, 3.2rem); }
  .sheet { padding: 56px 20px; }
  .spec-grid { grid-template-columns: 1fr; }
  .bom { grid-template-columns: 1fr; }
  .fig-grid { grid-template-columns: 1fr; }
  .rev-table-head { display: none; }
  .rev-row { grid-template-columns: 1fr; gap: 10px; }
  .rev-date { order: -1; }
  .tb-row { grid-template-columns: 1fr; }
  .tb-cell { border-right: none; border-bottom: 1px solid var(--border); }
  .tb-cell:last-child { border-bottom: none; }
  .stamp { position: static; margin: 0 auto 20px; }
  .spec-strip { gap: 20px 28px; }
}

@media (max-width: 420px) {
  .btn { width: 100%; }
  .hero-actions { flex-direction: column; }
}