/* ==========================================================================
   eee.md — visual refinements (atmosphere, cards, buttons) and the extra
   home sections: stats, technology, calculator, inspiration, why, FAQ, CTA.
   Loaded after base.css and pages.css.
   ========================================================================== */

/* ── Atmosphere ──────────────────────────────── */
body {
  background:
    radial-gradient(900px 500px at 85% -120px, rgba(232, 39, 42, 0.14), transparent 70%),
    radial-gradient(700px 500px at -10% 40%, rgba(232, 39, 42, 0.06), transparent 70%),
    var(--bg);
  background-attachment: fixed;
}
body::after { /* film grain */
  content: ""; position: fixed; inset: 0; z-index: 1; pointer-events: none; opacity: 0.05; mix-blend-mode: overlay;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='160' height='160'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.9' numOctaves='3' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
}
.header { z-index: 100; }
.kicker { display: inline-flex; align-items: center; gap: 10px; margin-bottom: 10px; font-size: 0.75rem; font-weight: 700; letter-spacing: 0.22em; text-transform: uppercase; color: var(--red-2); }
.kicker::before { content: ""; width: 7px; height: 7px; border-radius: 50%; background: var(--red); box-shadow: 0 0 10px var(--red); }
.section-head .kicker + .dash-title, .kicker + .h2 { margin-top: 0; }
.head-note { max-width: 40ch; }

/* ── Buttons: light sweep on hover ───────────── */
.btn { position: relative; overflow: hidden; isolation: isolate; }
.btn::after {
  content: ""; position: absolute; inset: 0; z-index: -1; pointer-events: none;
  background: linear-gradient(110deg, transparent 30%, rgba(255, 255, 255, 0.22) 50%, transparent 70%);
  transform: translateX(-120%); transition: transform 0.7s var(--ease);
}
.btn:hover::after { transform: translateX(120%); }
.btn-light { background: #fff; color: #111; box-shadow: 0 12px 30px -12px rgba(255, 255, 255, 0.4); }
.btn-light:hover { transform: translateY(-1px); }

/* ── Gradient edges ──────────────────────────────
   Cards get a 1px gradient border (light top-left → red bottom-right) via a
   two-layer background; hover/active swaps in the hot red edge. Solid
   border-color changes elsewhere still paint on top of it. */
:root {
  --card: linear-gradient(165deg, #1e1e23 0%, #151518 50%, #101012 100%);
  --field: linear-gradient(180deg, #1c1c20, #141417);
  --edge: linear-gradient(150deg, rgba(255, 255, 255, 0.24), rgba(255, 255, 255, 0.07) 30%, rgba(255, 255, 255, 0.04) 62%, rgba(232, 39, 42, 0.55));
  --edge-hot: linear-gradient(150deg, #ff6467, rgba(232, 39, 42, 0.4) 35%, rgba(232, 39, 42, 0.18) 62%, #ff3b3e);
  --edge-soft: linear-gradient(150deg, rgba(255, 255, 255, 0.18), rgba(255, 255, 255, 0.06) 45%, rgba(232, 39, 42, 0.38));
}
.panel, .pcard, .why-card, .faq details, .ctile, .step-card, .search-field, .search-results a, .order-no, .calc-out div, .pick, .slot-card:not(.is-empty), .bento figure {
  border: 1px solid transparent;
  background: var(--card) padding-box, var(--edge) border-box;
}
.panel { box-shadow: 0 30px 60px -40px rgba(0, 0, 0, 0.95), inset 0 1px 0 rgba(255, 255, 255, 0.03); }
.map-card { background: radial-gradient(circle at 80% 70%, rgba(232, 39, 42, 0.18), transparent 50%) padding-box, repeating-linear-gradient(35deg, transparent 0 34px, rgba(255, 255, 255, 0.03) 34px 36px) padding-box, var(--card) padding-box, var(--edge) border-box; }
.choice, .thumb, .cart-thumb, .mini-list .mt, .calc-img, .calc-quick button, .chip, .slot, .remove, .socials a, .cal-head, .qty, .field input, .field textarea {
  border-color: transparent;
  background: var(--field) padding-box, var(--edge-soft) border-box;
}
.field select {
  border-color: transparent;
  background: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='14' height='9'%3E%3Cpath d='M1 1l6 6 6-6' fill='none' stroke='%23fff' stroke-width='2'/%3E%3C/svg%3E") no-repeat right 15px center padding-box, var(--field) padding-box, var(--edge-soft) border-box;
}
.field input:focus, .field select:focus, .field textarea:focus, .field [aria-invalid="true"] { border-color: var(--red); }
.choice:has(input:checked), .pick[aria-pressed="true"], .calc-quick button[aria-pressed="true"], .slot.is-selected {
  border-color: transparent;
  background: linear-gradient(165deg, rgba(232, 39, 42, 0.22), rgba(232, 39, 42, 0.04) 70%) padding-box, var(--field) padding-box, var(--edge-hot) border-box;
}
.choice:has(input:checked) { box-shadow: 0 0 34px -14px var(--red-glow); }
.chip[aria-pressed="true"] { border-color: transparent; background: linear-gradient(180deg, var(--red-2), var(--red-dark)) padding-box, linear-gradient(150deg, #ff8a8c, var(--red)) border-box; }
.pcard:hover, .why-card:hover, .ctile:hover, .step-card:hover, .step-card.is-hot, a.contact-card:hover, .search-results a:hover, .faq details[open] {
  border-color: transparent;
  background: var(--card) padding-box, var(--edge-hot) border-box;
}
.choice:hover, .pick:hover:not(:disabled), .chip:hover:not([aria-pressed="true"]), .slot:hover:not(:disabled):not(.is-selected), .calc-quick button:hover:not([aria-pressed="true"]) {
  border-color: transparent;
  background: linear-gradient(180deg, #202025, #151518) padding-box, var(--edge-hot) border-box;
}
.pcard-media { background: radial-gradient(70% 50% at 50% 85%, rgba(232, 39, 42, 0.18), transparent 70%), radial-gradient(circle at 50% 35%, #29292e, #141416 70%); border-bottom: 1px solid rgba(255, 255, 255, 0.05); }
.pcard-media::after { content: ""; position: absolute; left: 22%; right: 22%; bottom: 9%; height: 12px; border-radius: 50%; background: rgba(0, 0, 0, 0.6); filter: blur(8px); }
.pcard-media img { z-index: 1; }
.icon-box, .icon-btn {
  border: 1.5px solid transparent;
  background: linear-gradient(145deg, rgba(232, 39, 42, 0.3), rgba(232, 39, 42, 0.03) 70%) padding-box, linear-gradient(#141416, #141416) padding-box, linear-gradient(145deg, #ff6467, rgba(232, 39, 42, 0.3) 55%, #b3161a) border-box;
}
.icon-btn:hover { background: linear-gradient(145deg, var(--red-2), var(--red-dark)) padding-box, linear-gradient(145deg, #ff8a8c, var(--red)) border-box; }
.icon-btn { transition: background 0.2s, box-shadow 0.2s, transform 0.2s var(--ease); }
.icon-btn:active { transform: scale(0.92); }
.icon-ring { border: 1px solid transparent; background: radial-gradient(circle at 50% 30%, #26262b, #121214) padding-box, var(--edge) border-box; }
.btn-outline { border-color: transparent; background: linear-gradient(180deg, #19191c, #111113) padding-box, linear-gradient(150deg, rgba(255, 255, 255, 0.75), rgba(255, 255, 255, 0.22) 50%, rgba(232, 39, 42, 0.85)) border-box; }
.btn-outline:hover { border-color: transparent; background: linear-gradient(180deg, #232327, #18181b) padding-box, linear-gradient(150deg, #fff, rgba(255, 255, 255, 0.4) 50%, var(--red-2)) border-box; }
.btn-ghost-red { border-color: transparent; background: linear-gradient(180deg, #1d1315, #140f10) padding-box, linear-gradient(150deg, #ff6467, rgba(232, 39, 42, 0.35) 50%, var(--red)) border-box; }
.btn-ghost-red:hover { background: linear-gradient(180deg, #2a1416, #1c1012) padding-box, linear-gradient(150deg, #ff8a8c, var(--red)) border-box; }
.ctile { position: relative; overflow: hidden; }
.ctile::after { content: ""; position: absolute; left: 0; right: 0; bottom: 0; height: 2px; background: var(--red); transform: scaleX(0); transition: transform 0.3s var(--ease); }
.ctile:hover::after { transform: scaleX(1); }
.icon-box { transition: box-shadow 0.3s, background 0.3s; }
.feature:hover .icon-box { box-shadow: 0 0 26px -4px var(--red-glow); }
.thin-scroll { scrollbar-width: thin; scrollbar-color: rgba(232, 39, 42, 0.6) transparent; }
.thin-scroll::-webkit-scrollbar { width: 6px; }
.thin-scroll::-webkit-scrollbar-thumb { background: rgba(232, 39, 42, 0.6); border-radius: 3px; }

/* sections that start with a glowing hairline also get a soft red wash */
.section.glow-top { isolation: isolate; }
.section.glow-top::after { content: ""; position: absolute; inset: 0 0 auto; height: 260px; pointer-events: none; z-index: -1; background: radial-gradient(50% 100% at 50% 0%, rgba(232, 39, 42, 0.12), transparent 70%); }

/* ── Hero ─────────────────────────────────────── */
/* solid backdrop so the photo's fade-to-black meets the same colour (the body has a glow) */
.home-hero, .how-hero { isolation: isolate; background: var(--bg); }
.home-hero-photo { overflow: hidden; }
.home-hero-photo img { animation: hero-zoom 18s ease-out both; }
@keyframes hero-zoom { from { transform: scale(1.08); } to { transform: scale(1); } }
.hero-glow { position: absolute; left: -10%; bottom: -30%; width: 60%; height: 80%; z-index: 0; pointer-events: none; background: radial-gradient(closest-side, rgba(232, 39, 42, 0.28), transparent); filter: blur(20px); }
.home-hero h1 .light { color: #e8e8eb; }
.home-hero-inner > * { animation: rise 0.9s var(--ease) both; }
.home-hero-inner > :nth-child(2) { animation-delay: 0.08s; }
.home-hero-inner > :nth-child(3) { animation-delay: 0.16s; }
.home-hero-inner > :nth-child(4) { animation-delay: 0.24s; }
.home-hero-inner > :nth-child(5) { animation-delay: 0.32s; }
@keyframes rise { from { opacity: 0; transform: translateY(16px); } to { opacity: 1; transform: none; } }
.glass-card { background: rgba(20, 20, 23, 0.62); border: 1px solid rgba(255, 255, 255, 0.14); backdrop-filter: blur(16px) saturate(140%); -webkit-backdrop-filter: blur(16px) saturate(140%); box-shadow: 0 30px 60px -20px rgba(0, 0, 0, 0.8); }
.hero-chip {
  position: absolute; z-index: 2; right: max(var(--gutter), calc((100vw - var(--wrap)) / 2 + var(--gutter))); bottom: 48px;
  display: flex; align-items: center; gap: 14px; padding: 12px 18px 12px 12px; border-radius: 16px;
  animation: rise 1s 0.5s var(--ease) both, float 6s 1.5s ease-in-out infinite alternate; transition: border-color 0.2s;
}
.hero-chip:hover { border-color: var(--red); }
.hero-chip img { width: 52px; height: 68px; object-fit: contain; background: radial-gradient(circle, #2a2a2e, #141416); border-radius: 10px; padding: 4px; }
.hero-chip small { display: block; font-size: 0.6875rem; letter-spacing: 0.14em; text-transform: uppercase; color: var(--red-2); font-weight: 700; }
.hero-chip b { display: block; font-size: 1rem; }
.hero-chip em { font-style: normal; font-weight: 800; font-size: 1.35rem; }
.hero-chip em i { font-style: normal; font-size: 0.8rem; font-weight: 600; color: #cfcfd3; }
.hero-chip > i { color: var(--mute); margin-left: 6px; }
@keyframes float { from { transform: translateY(0); } to { transform: translateY(-8px); } }

/* ── Stats band ──────────────────────────────── */
.stats-band { padding: clamp(26px, 3.6vw, 42px) 0; border-bottom: 1px solid var(--line); background: linear-gradient(180deg, #0b0b0c, #0f0f11); }
.stats { display: grid; grid-template-columns: repeat(4, 1fr); }
.stat { padding: 6px clamp(14px, 2.4vw, 32px); }
.stat + .stat { border-left: 1px solid var(--line); }
.stat b { display: block; font-size: clamp(2.2rem, 1.6rem + 2vw, 3.4rem); font-weight: 800; letter-spacing: -0.04em; line-height: 1; background: linear-gradient(180deg, #fff 30%, #ff8a8c); -webkit-background-clip: text; background-clip: text; color: transparent; }
.stat > span { display: block; margin-top: 10px; color: #cfcfd3; font-size: 0.9375rem; line-height: 1.4; max-width: 24ch; }

/* ── Technology ──────────────────────────────── */
.tech-section { overflow: hidden; }
.tech-grid { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1.05fr); gap: clamp(28px, 5vw, 72px); align-items: center; }
.tech-grid .h2 { margin: 6px 0 14px; }
.layers { display: grid; gap: 4px; margin-top: 26px; counter-reset: l; }
.layers li { display: grid; grid-template-columns: 54px 1fr; gap: 16px; align-items: start; padding: 16px 0; border-top: 1px solid var(--line); }
.layer-no { width: 44px; height: 44px; border-radius: 12px; display: grid; place-items: center; font-weight: 800; font-size: 0.9rem; background: linear-gradient(145deg, var(--red-2), var(--red-dark)); box-shadow: 0 10px 24px -10px var(--red-glow); }
.layers li:nth-child(2) .layer-no { background: linear-gradient(145deg, #ffe066, #c9a600); color: #111; box-shadow: 0 10px 24px -10px rgba(255, 214, 0, 0.45); }
.layers li:nth-child(3) .layer-no { background: linear-gradient(145deg, #f0f0ee, #a6a6a1); color: #111; box-shadow: none; }
.layers b { display: block; font-size: 1.05rem; }
.layers div span { display: block; color: #bdbdc3; font-size: 0.9375rem; margin-top: 2px; }
.tech-figure { position: relative; }
.tech-figure::before { content: ""; position: absolute; inset: -12% -8%; background: radial-gradient(closest-side, rgba(232, 39, 42, 0.24), transparent); filter: blur(10px); z-index: -1; }
.tech-paper { background: #fff; border-radius: 18px; padding: clamp(16px, 2.6vw, 30px); box-shadow: 0 40px 80px -30px rgba(0, 0, 0, 0.9); transform: perspective(1200px) rotateY(-6deg) rotateX(3deg); transition: transform 0.6s var(--ease); }
.tech-figure:hover .tech-paper { transform: none; }
.tech-figure figcaption { display: flex; gap: 10px; align-items: center; margin-top: 16px; color: #cfcfd3; font-size: 0.875rem; }
.tech-figure .dot { width: 10px; height: 10px; border-radius: 3px; background: var(--yellow); flex-shrink: 0; }
.tech-badge { position: absolute; top: -18px; right: -10px; display: inline-flex; align-items: center; gap: 8px; padding: 10px 16px; border-radius: 999px; background: var(--red); font-size: 0.875rem; box-shadow: 0 14px 30px -10px var(--red-glow); }
.tech-badge i { font-size: 1.1rem; }

/* ── Calculator ──────────────────────────────── */
.calc-grid { display: grid; grid-template-columns: minmax(0, 0.9fr) minmax(0, 1.1fr); gap: clamp(28px, 5vw, 72px); align-items: center; }
.calc-notes { margin-top: 18px; }
.calc { display: grid; gap: 18px; padding: clamp(20px, 3vw, 32px); background: radial-gradient(80% 60% at 100% 0%, rgba(232, 39, 42, 0.14), transparent 70%) padding-box, var(--card) padding-box, var(--edge-hot) border-box; box-shadow: 0 0 0 1px rgba(232, 39, 42, 0.08), 0 40px 80px -40px var(--red-glow); }
.calc-product { display: grid; grid-template-columns: 84px 1fr; gap: 16px; align-items: end; }
.calc-img { position: relative; width: 84px; height: 84px; border-radius: 14px; border: 1px solid var(--line-2); background: radial-gradient(circle at 50% 35%, #2a2a2e, #141416); overflow: hidden; }
.calc-img img { position: absolute; inset: 6px; width: calc(100% - 12px); height: calc(100% - 12px); object-fit: contain; transition: opacity 0.25s; }
.calc-row { display: flex; align-items: flex-end; gap: 14px; flex-wrap: wrap; }
.calc-quick { display: flex; gap: 6px; }
.calc-quick button { min-width: 48px; height: 50px; border-radius: 10px; border: 1px solid transparent; color: #fff; font-weight: 700; cursor: pointer; }
.calc-out { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
.calc-out div { padding: 14px 16px; border-radius: 12px; }
.calc-out dt { color: var(--mute); font-size: 0.8125rem; }
.calc-out dd { font-weight: 800; font-size: 1.05rem; margin-top: 2px; }
.calc .sum-total b { font-size: clamp(2rem, 1.6rem + 1.4vw, 2.8rem); color: #fff; }

/* ── Inspiration bento ───────────────────────── */
.bento { display: grid; grid-template-columns: 1.4fr 1fr 1fr; grid-template-rows: 260px 260px; gap: 14px; }
.bento figure { position: relative; overflow: hidden; border-radius: var(--radius); }
.bento img { width: 100%; height: 100%; object-fit: cover; transition: transform 1.2s var(--ease); }
.bento figure:hover img { transform: scale(1.06); }
.bento figure::after { content: ""; position: absolute; inset: 0; background: linear-gradient(180deg, transparent 50%, rgba(0, 0, 0, 0.8)); pointer-events: none; }
.bento figcaption { position: absolute; z-index: 1; left: 18px; right: 18px; bottom: 16px; }
.bento figcaption b { display: block; font-size: 1.15rem; }
.bento figcaption span { color: #d6d6da; font-size: 0.875rem; }
.bento-a { grid-row: span 2; }
.bento-d { grid-column: span 2; background: linear-gradient(#fff, #fff) padding-box, var(--edge) border-box !important; }
.bento-d img { object-fit: contain; }
.bento-d::after { background: linear-gradient(180deg, transparent 55%, rgba(0, 0, 0, 0.75)) !important; }

/* ── Why ─────────────────────────────────────── */
.why-grid { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 16px; }
.why-card { position: relative; padding: 24px; border-radius: var(--radius); overflow: hidden; transition: transform 0.3s var(--ease), border-color 0.3s; }
.why-card::after { content: ""; position: absolute; right: -40px; top: -40px; width: 120px; height: 120px; border-radius: 50%; background: radial-gradient(closest-side, rgba(232, 39, 42, 0.25), transparent); opacity: 0; transition: opacity 0.3s; }
.why-card:hover { transform: translateY(-4px); }
.why-card:hover::after { opacity: 1; }
.why-card h3 { font-size: 1.15rem; margin: 18px 0 8px; }
.why-card p { color: #bdbdc3; font-size: 0.9375rem; }

/* ── FAQ preview & CTA ───────────────────────── */
.faq-home { display: grid; grid-template-columns: minmax(0, 0.8fr) minmax(0, 1.2fr); gap: clamp(24px, 5vw, 64px); align-items: start; }
.faq-home > div:first-child { display: grid; gap: 14px; justify-items: start; }
.cta-band { margin-top: clamp(20px, 3vw, 40px); }
.cta-band-inner {
  display: flex; justify-content: space-between; align-items: center; gap: 24px; flex-wrap: wrap;
  padding: clamp(28px, 4vw, 48px); border-radius: 24px; overflow: hidden; position: relative;
  background: linear-gradient(120deg, var(--red-dark), var(--red) 45%, #ff5a5d);
  box-shadow: 0 40px 80px -40px var(--red-glow);
}
.cta-band-inner::before { content: ""; position: absolute; right: -60px; top: -80px; width: 340px; height: 340px; background: url("../img/logo-mark.svg") no-repeat center / contain; opacity: 0.12; filter: brightness(0) invert(1); transform: rotate(-12deg); }
.cta-band-inner > * { position: relative; }
.cta-band .lead { color: rgba(255, 255, 255, 0.88); max-width: 46ch; }
.cta-band-actions { display: flex; gap: 12px; flex-wrap: wrap; }
.cta-band .btn-outline { border-color: rgba(255, 255, 255, 0.75); background: rgba(255, 255, 255, 0.08); }
.cta-band .btn-outline:hover { border-color: #fff; background: rgba(255, 255, 255, 0.16); }

/* ── Responsive ──────────────────────────────── */
@media (max-width: 1080px) {
  .why-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .hero-chip { display: none; }
}
@media (max-width: 980px) {
  .tech-grid, .calc-grid, .faq-home { grid-template-columns: minmax(0, 1fr); }
  .stats { grid-template-columns: 1fr 1fr; row-gap: 26px; }
  .stat:nth-child(3) { border-left: 0; }
  .bento { grid-template-columns: 1fr 1fr; grid-template-rows: 280px 200px 220px; }
  .bento-a { grid-column: span 2; grid-row: auto; }
  .bento-d { grid-column: span 2; }
}
@media (max-width: 640px) {
  .home-hero .features, .samples-hero .features, .features--split, .pdp-features { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 10px; }
  .home-hero .features .feature, .samples-hero .features .feature, .features--split .feature, .pdp-features .feature { flex-direction: column; align-items: flex-start; gap: 8px; font-size: 0.8125rem; padding-left: 0; border-left: 0; }
  .home-hero .features .icon-box, .samples-hero .features .icon-box, .pdp-features .icon-box { width: 44px; height: 44px; font-size: 1.05rem; }
  .samples-hero .sbox { display: none; }
  .section { padding: 26px 0; }
  .section-head { margin-bottom: 16px; }
  .samples-banner { padding: 26px 0; }
  .stats-band { padding: 28px 0; }
  .cta-band { margin-top: 0; }
  .footer { margin-top: 34px; }
  .pdp-more { padding: 28px 0; margin-top: 20px; }
  .timeline li { font-size: 0.625rem; line-height: 1.25; overflow-wrap: anywhere; }
  .features--split .feature + .feature { padding-left: 0; border-left: 0; }
  .stat { padding: 0 12px; }
  .stat:nth-child(odd) { padding-left: 0; }
  .stat > span { font-size: 0.8125rem; }
  .tech-paper { transform: none; }
  .tech-badge { right: 8px; }
  .calc-out { grid-template-columns: 1fr; }
  .calc-quick { width: 100%; }
  .calc-quick button { flex: 1; }
  .bento { grid-template-columns: 1fr; grid-template-rows: none; grid-auto-rows: 220px; }
  .bento-a, .bento-d { grid-column: auto; }
  .why-grid { grid-template-columns: 1fr; }
  .cta-band-actions .btn { flex: 1 1 100%; }
}
@media (prefers-reduced-motion: reduce) {
  .home-hero-photo img, .home-hero-inner > *, .hero-chip { animation: none; }
}

/* ── Phone widths: nothing may push the page wider than the screen ── */
.calc { grid-template-columns: minmax(0, 1fr); }
.calc-product { grid-template-columns: 84px minmax(0, 1fr); }
.field, .xselect, .xselect-btn, .calc-row > .field { min-width: 0; }
.xselect-value { min-width: 0; flex: 1 1 auto; }
.sum-total { flex-wrap: wrap; }
.sum-total b { overflow-wrap: anywhere; }
@media (max-width: 640px) {
  .calc-product { grid-template-columns: 64px minmax(0, 1fr); gap: 12px; }
  .calc-img { width: 64px; height: 64px; }
  .calc-row .field { flex: 1 1 100%; }
  .calc-quick button { min-width: 0; }
  .contact-card > span { min-width: 0; }
  .contact-card b { white-space: normal; overflow-wrap: anywhere; }
  .sbox { width: calc(100% - 24px); }
}
@media (max-width: 380px) {
  .header .wrap { gap: 8px; }
  .brand { gap: 8px; min-width: 0; }
  .brand img { width: 34px; }
  .brand-text b { font-size: 1.25rem; }
  .brand-text small { letter-spacing: 0.16em; }
  .header-tools { gap: 2px; }
  .icon-btn { width: 36px; height: 36px; }
  .calc .sum-total b { font-size: 1.8rem; }
}