/* ==========================================================================
   Key Acre Pvt. Ltd. — Website Styles (Editorial redesign)
   ========================================================================== */

:root {
  --blue: #2274a5;
  --blue-dark: #123a52;
  --blue-darker: #0c2637;
  --navy: #0d2436;
  --ink: #17181a;
  --muted: #656a6f;
  --muted-2: #8a8f94;
  --paper: #faf8f5;
  --line: #e2ddd5;
  --line-dark: rgba(255,255,255,0.14);
  --white: #ffffff;
  --shadow-md: 0 20px 50px rgba(13, 36, 54, 0.10);
  --maxw: 1180px;
  --maxw-wide: 1320px;
  --font: "Plus Jakarta Sans", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  --serif: "Fraunces", "Georgia", serif;
}

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

html { scroll-behavior: smooth; }

body {
  font-family: var(--font);
  color: var(--ink);
  background: var(--paper);
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

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

.container {
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 0 32px;
}
.container-wide {
  max-width: var(--maxw-wide);
  margin: 0 auto;
  padding: 0 32px;
}

.section-pad { padding: 130px 0; }
@media (max-width: 900px) { .section-pad { padding: 88px 0; } }
@media (max-width: 560px) { .section-pad { padding: 68px 0; } }

.eyebrow {
  display: block;
  font-size: 0.74rem;
  font-weight: 700;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--blue);
  margin-bottom: 20px;
}
.eyebrow.on-dark { color: #8fc2e0; }

.section-head { max-width: 640px; margin-bottom: 64px; }
.section-head.center { margin-left: auto; margin-right: auto; text-align: center; }
.section-head.wide { max-width: 760px; }

.section-head h2 {
  font-family: var(--serif);
  font-size: clamp(2rem, 3.6vw, 3rem);
  font-weight: 600;
  letter-spacing: -0.01em;
  line-height: 1.12;
  margin-bottom: 18px;
  color: var(--ink);
}
.section-head p { color: var(--muted); font-size: 1.08rem; max-width: 620px; }
.section-head.center p { margin: 0 auto; }

/* ---------- Buttons & links ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 15px 30px;
  border-radius: 999px;
  font-weight: 700;
  font-size: 0.92rem;
  border: 1px solid transparent;
  cursor: pointer;
  transition: transform 0.2s ease, background 0.2s ease, color 0.2s ease, border-color .2s ease;
  white-space: nowrap;
}
.btn-primary { background: var(--ink); color: #fff; }
.btn-primary:hover { background: var(--blue-dark); transform: translateY(-1px); }

.btn-outline-dark { background: transparent; border-color: rgba(23,24,26,0.25); color: var(--ink); }
.btn-outline-dark:hover { background: rgba(23,24,26,0.05); }

.btn-block { width: 100%; justify-content: center; }

.text-link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-weight: 700;
  font-size: 0.95rem;
  color: inherit;
  border-bottom: 1px solid currentColor;
  padding-bottom: 3px;
  transition: opacity 0.2s ease, gap 0.2s ease;
}
.text-link:hover { gap: 12px; opacity: 0.75; }
.text-link.on-dark { color: #fff; }

/* ---------- Header ---------- */
.site-header {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 1000;
  padding: 26px 0;
  transition: background 0.35s ease, padding 0.35s ease, box-shadow 0.35s ease, border-color .35s ease;
  border-bottom: 1px solid transparent;
}
.site-header.scrolled {
  background: rgba(250, 248, 245, 0.94);
  backdrop-filter: blur(10px);
  border-bottom-color: var(--line);
  padding: 16px 0;
}
.header-inner { display: flex; align-items: center; justify-content: space-between; gap: 24px; }
.brand { display: flex; align-items: center; gap: 10px; }
.brand img { height: 30px; width: auto; }

.main-nav { display: flex; align-items: center; gap: 34px; }
.main-nav a {
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: #fff;
  opacity: 0.85;
  position: relative;
  padding: 4px 0;
}
.site-header.scrolled .main-nav a { color: var(--ink); }
.main-nav a:hover { opacity: 1; }

.header-cta { display: flex; align-items: center; gap: 20px; }
.header-phone {
  font-size: 0.85rem;
  font-weight: 700;
  color: #fff;
  opacity: 0.9;
}
.site-header.scrolled .header-phone { color: var(--ink); }
.header-cta .btn-primary { background: #fff; color: var(--ink); }
.site-header.scrolled .header-cta .btn-primary { background: var(--ink); color: #fff; }
.header-cta .btn-primary:hover { background: var(--blue); color: #fff; }

.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 6px;
  z-index: 1100;
  color: #fff;
}
.site-header.scrolled .nav-toggle { color: var(--ink); }
.nav-toggle span { width: 26px; height: 2px; background: currentColor; border-radius: 2px; }

/* ---------- Hero ---------- */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  color: #fff;
  padding-top: 140px;
  padding-bottom: 0;
}
.hero::before {
  content: "";
  position: absolute; inset: 0;
  background-image: linear-gradient(180deg, rgba(9,26,39,0.55) 0%, rgba(9,26,39,0.35) 40%, rgba(8,20,30,0.88) 100%), url("../assets/architecture-2.jpg");
  background-size: cover;
  background-position: center 30%;
  z-index: -1;
}
.hero-inner { max-width: 900px; padding-bottom: 90px; }
.hero .eyebrow { color: #bcdcee; }
.hero h1 {
  font-family: var(--serif);
  font-size: clamp(2.4rem, 6vw, 4.6rem);
  font-weight: 500;
  line-height: 1.06;
  letter-spacing: -0.01em;
  margin-bottom: 26px;
}
.hero h1 em { font-style: italic; color: #a9d3ec; font-weight: 500; }
.hero p.lead {
  font-size: 1.18rem;
  color: rgba(255,255,255,0.78);
  max-width: 560px;
  margin-bottom: 40px;
  font-weight: 400;
}
.hero-actions { display: flex; align-items: center; gap: 30px; flex-wrap: wrap; margin-bottom: 64px; }

.hero-stats {
  display: flex;
  border-top: 1px solid rgba(255,255,255,0.2);
  padding-top: 30px;
  gap: 0;
}
.hero-stats .stat { flex: 1; padding-right: 24px; border-right: 1px solid rgba(255,255,255,0.16); }
.hero-stats .stat:last-child { border-right: none; }
.hero-stats .stat .num {
  font-family: var(--serif);
  font-size: clamp(1.6rem, 2.8vw, 2.3rem);
  font-weight: 500;
  color: #fff;
  display: block;
  margin-bottom: 6px;
}
.hero-stats .stat .label {
  font-size: 0.72rem;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  color: rgba(255,255,255,0.58);
}
@media (max-width: 780px) {
  .hero-stats { flex-wrap: wrap; row-gap: 26px; }
  .hero-stats .stat { flex: 0 0 50%; border-right: none; }
}

/* ---------- Inline stat row (reused: about, pipeline) ---------- */
.inline-stats {
  display: flex;
  gap: 0;
  margin-bottom: 56px;
}
.inline-stats .stat {
  flex: 1;
  border-top: 1px solid var(--line);
  padding-top: 22px;
  padding-right: 28px;
}
.inline-stats .stat .num {
  font-family: var(--serif);
  font-size: clamp(2rem, 3.6vw, 2.8rem);
  font-weight: 500;
  color: var(--ink);
  display: block;
  line-height: 1;
  margin-bottom: 12px;
}
.inline-stats .stat h4 { font-size: 0.98rem; font-weight: 700; margin-bottom: 8px; }
.inline-stats .stat p { color: var(--muted); font-size: 0.9rem; max-width: 260px; }
@media (max-width: 780px) {
  .inline-stats { flex-direction: column; gap: 26px; }
}

/* ---------- Pull quote / callout ---------- */
.pull-quote {
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  padding: 40px 0;
  max-width: 780px;
}
.pull-quote .label { font-size: 0.74rem; font-weight: 700; letter-spacing: 0.14em; text-transform: uppercase; color: var(--blue); margin-bottom: 16px; display:block; }
.pull-quote p {
  font-family: var(--serif);
  font-size: clamp(1.2rem, 2vw, 1.55rem);
  font-weight: 400;
  color: var(--ink);
  line-height: 1.5;
}
.pull-quote p b { font-weight: 600; }

/* ---------- Full-bleed image break ---------- */
.image-break {
  position: relative;
  height: 62vh;
  min-height: 420px;
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
}
.image-break img {
  position: absolute; inset: 0;
  width: 100%; height: 100%;
  object-fit: cover;
  animation: slowzoom 22s ease-in-out infinite alternate;
}
@keyframes slowzoom { from { transform: scale(1); } to { transform: scale(1.08); } }
.image-break::after {
  content: "";
  position: absolute; inset: 0;
  background: linear-gradient(180deg, rgba(9,26,39,0.55), rgba(9,26,39,0.4) 50%, rgba(9,26,39,0.65));
}
.image-break .break-content { position: relative; z-index: 1; text-align: center; max-width: 780px; padding: 0 24px; }
.image-break .eyebrow { color: #a9d3ec; text-align: center; }
.image-break h3 {
  font-family: var(--serif);
  font-size: clamp(1.6rem, 4vw, 2.8rem);
  font-weight: 500;
  line-height: 1.25;
}

.image-break.short { height: 34vh; min-height: 260px; }

/* ---------- Split (image / text) ---------- */
.split {
  display: grid;
  grid-template-columns: 0.95fr 1.05fr;
  gap: 72px;
  align-items: center;
}
.split.reverse { grid-template-columns: 1.05fr 0.95fr; }
.split.reverse .split-img { order: 2; }
.split-img { overflow: hidden; }
.split-img img { width: 100%; height: 100%; object-fit: cover; aspect-ratio: 4/5; }
.split-body h2 {
  font-family: var(--serif);
  font-size: clamp(1.7rem, 3vw, 2.3rem);
  font-weight: 600;
  color: var(--ink);
  margin-bottom: 18px;
  letter-spacing: -0.01em;
}
.split-body > p { color: var(--muted); margin-bottom: 8px; font-size: 1.03rem; }

@media (max-width: 900px) {
  .split, .split.reverse { grid-template-columns: 1fr; gap: 36px; }
  .split.reverse .split-img { order: 0; }
  .split-img img { aspect-ratio: 16/10; }
}

/* ---------- Timeline / numbered journey ---------- */
.timeline {
  display: flex;
  gap: 28px;
  margin: 40px 0 32px;
  position: relative;
}
.timeline::before {
  content: "";
  position: absolute;
  top: 20px; left: 0; right: 0;
  height: 1px;
  background: var(--line);
}
.timeline-step { flex: 1; position: relative; padding-top: 40px; }
.timeline-step .t-num {
  font-family: var(--serif);
  font-size: 1.1rem;
  color: var(--blue);
  position: absolute;
  top: 0; left: 0;
  background: var(--paper);
  padding-right: 14px;
}
.timeline-step h5 { font-size: 0.95rem; font-weight: 700; color: var(--ink); margin-bottom: 6px; }
.timeline-step p { font-size: 0.85rem; color: var(--muted); }
@media (max-width: 780px) {
  .timeline { flex-direction: column; gap: 24px; }
  .timeline::before { display: none; }
  .timeline-step { padding-top: 0; padding-left: 34px; }
  .timeline-step .t-num { position: static; display: block; margin-bottom: 6px; padding: 0; }
}

/* ---------- Leadership (editorial split, stacked) ---------- */
.leader-row + .leader-row { margin-top: 90px; }
.leader-row .split-img img { aspect-ratio: 4/4.6; }
.leader-role {
  font-size: 0.76rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--blue);
  margin-bottom: 10px;
}
.leader-row h3 {
  font-family: var(--serif);
  font-size: clamp(1.8rem, 3.2vw, 2.4rem);
  font-weight: 600;
  color: var(--ink);
  margin-bottom: 18px;
}
.leader-row p.bio { color: var(--muted); font-size: 1.05rem; max-width: 480px; }

/* ---------- Editorial numbered list (services / pipeline) ---------- */
.ed-list-item {
  display: grid;
  grid-template-columns: 90px 1fr 1.3fr;
  gap: 32px;
  padding: 36px 0;
  border-top: 1px solid var(--line);
  align-items: baseline;
}
.ed-list-item:last-child { border-bottom: 1px solid var(--line); }
.ed-list-item .ed-num {
  font-family: var(--serif);
  font-size: 1.3rem;
  color: var(--muted-2);
}
.ed-list-item h4 { font-size: 1.15rem; font-weight: 700; color: var(--ink); }
.ed-list-item p { color: var(--muted); font-size: 0.98rem; }

@media (max-width: 780px) {
  .ed-list-item { grid-template-columns: 1fr; gap: 10px; padding: 26px 0; }
  .ed-list-item .ed-num { order: -1; }
}

/* ---------- Process (numbered sequence) ---------- */
.process-seq {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 32px;
  margin-bottom: 64px;
  border-top: 1px solid var(--line);
  padding-top: 40px;
}
.process-seq .p-step .p-num {
  font-family: var(--serif);
  font-size: 2.2rem;
  color: var(--blue);
  display: block;
  margin-bottom: 16px;
  font-weight: 500;
}
.process-seq .p-step h5 { font-size: 1rem; font-weight: 700; color: var(--ink); margin-bottom: 10px; }
.process-seq .p-step p { font-size: 0.9rem; color: var(--muted); }

@media (max-width: 900px) {
  .process-seq { grid-template-columns: 1fr 1fr; row-gap: 40px; }
}
@media (max-width: 560px) {
  .process-seq { grid-template-columns: 1fr; }
}

.process-points {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0 60px;
}
.process-points .pt {
  padding: 22px 0;
  border-top: 1px solid var(--line);
  display: flex;
  justify-content: space-between;
  gap: 24px;
  align-items: baseline;
}
.process-points .pt h6 { font-size: 0.96rem; font-weight: 700; color: var(--ink); flex: 0 0 190px; }
.process-points .pt p { font-size: 0.88rem; color: var(--muted); }
@media (max-width: 780px) {
  .process-points { grid-template-columns: 1fr; }
  .process-points .pt { flex-direction: column; gap: 6px; }
  .process-points .pt h6 { flex: none; }
}

/* ---------- Portfolio / footprint ---------- */
.portfolio-intro { max-width: 780px; margin-bottom: 56px; }
.portfolio-intro .eyebrow { text-align: left; }
.portfolio-intro h2 {
  font-family: var(--serif);
  font-size: clamp(1.9rem, 3.4vw, 2.7rem);
  font-weight: 600;
  color: var(--ink);
  margin-bottom: 6px;
}
.portfolio-intro h3 { font-size: clamp(1.1rem, 2vw, 1.35rem); font-weight: 500; color: var(--blue-dark); margin-bottom: 20px; font-family: var(--serif); }
.portfolio-intro p { color: var(--muted); }

.portfolio-figure {
  display: flex;
  align-items: baseline;
  gap: 40px;
  flex-wrap: wrap;
  margin-bottom: 16px;
  border-top: 1px solid var(--line);
  padding-top: 28px;
}
.portfolio-figure .fig { display: flex; align-items: baseline; gap: 10px; }
.portfolio-figure .fig .num { font-family: var(--serif); font-size: 1.8rem; color: var(--ink); }
.portfolio-figure .fig .lbl { color: var(--muted); font-size: 0.92rem; }

.note-line {
  color: var(--muted-2);
  font-size: 0.85rem;
  font-style: italic;
  margin-bottom: 60px;
}

.footprint-split {
  display: grid;
  grid-template-columns: 0.9fr 1.1fr;
  gap: 60px;
  align-items: center;
}
.footprint-map img { aspect-ratio: 4/5; object-fit: cover; }
.zone-list { display: flex; flex-direction: column; }
.zone-item { border-top: 1px solid var(--line); padding: 22px 0; }
.zone-item:last-child { border-bottom: 1px solid var(--line); }
.zone-item h5 { font-size: 1rem; font-weight: 700; color: var(--ink); margin-bottom: 6px; }
.zone-item p { font-size: 0.92rem; color: var(--muted); }
.zone-item p b { color: var(--ink); font-weight: 600; }

@media (max-width: 860px) { .footprint-split { grid-template-columns: 1fr; } }

/* ---------- Pipeline ---------- */
.pipeline-lede { max-width: 720px; margin-bottom: 12px; }
.pipeline-subhead { margin: 70px 0 8px; }
.pipeline-subhead .eyebrow { margin-bottom: 10px; }
.pipeline-subhead h3 {
  font-family: var(--serif);
  font-size: clamp(1.4rem, 2.4vw, 1.8rem);
  font-weight: 600;
  color: var(--ink);
  margin-bottom: 4px;
}
.pipeline-subhead p.subtitle { color: var(--blue-dark); font-weight: 600; font-size: 0.95rem; }
.pipeline-subhead p.desc { color: var(--muted); margin-top: 10px; max-width: 720px; }

.pipeline-footer-note {
  margin-top: 44px;
  padding-top: 24px;
  border-top: 1px solid var(--line);
  color: var(--muted);
  font-size: 0.92rem;
  font-style: italic;
}

.land-list-ed { display: flex; flex-direction: column; }
.land-row {
  display: grid;
  grid-template-columns: 60px 1fr 1.4fr;
  gap: 28px;
  padding: 28px 0;
  border-top: 1px solid var(--line);
  align-items: baseline;
}
.land-row:last-child { border-bottom: 1px solid var(--line); }
.land-row .l-num { font-family: var(--serif); font-size: 1.3rem; color: var(--muted-2); }
.land-row h5 { font-weight: 700; color: var(--ink); margin-bottom: 4px; }
.land-row .zone-type { font-size: 0.78rem; color: var(--blue); font-weight: 700; text-transform: uppercase; letter-spacing: 0.04em; }
.land-row p.desc { font-size: 0.92rem; color: var(--muted); }
@media (max-width: 780px) {
  .land-row { grid-template-columns: 1fr; gap: 8px; padding: 22px 0; }
}

/* ---------- Contact ---------- */
.contact-section { background: var(--navy); color: #fff; }
.contact-section .section-head h2 { color: #fff; }
.contact-section .section-head p { color: rgba(255,255,255,0.62); }

.contact-grid { display: grid; grid-template-columns: 0.95fr 1.05fr; gap: 70px; align-items: start; }

.contact-list { display: flex; flex-direction: column; }
.contact-row {
  border-top: 1px solid var(--line-dark);
  padding: 24px 0;
}
.contact-row:last-child { border-bottom: 1px solid var(--line-dark); }
.contact-row h5 { font-weight: 700; margin-bottom: 4px; font-size: 1.02rem; }
.contact-row .role-line { font-size: 0.8rem; color: #8fc2e0; margin-bottom: 10px; text-transform: uppercase; letter-spacing: 0.04em; }
.contact-row a.clink { display: inline-block; font-size: 0.92rem; color: rgba(255,255,255,0.82); margin-right: 18px; border-bottom: 1px solid rgba(255,255,255,0.25); padding-bottom: 2px; }
.contact-row a.clink:hover { color: #fff; border-color: #fff; }
.contact-row p { font-size: 0.9rem; color: rgba(255,255,255,0.65); }

.contact-form h3 { font-family: var(--serif); font-weight: 500; margin-bottom: 6px; font-size: 1.4rem; }
.contact-form .form-sub { color: rgba(255,255,255,0.55); font-size: 0.88rem; margin-bottom: 30px; }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 26px; margin-bottom: 24px; }
.form-field { margin-bottom: 24px; }
.form-field label { display: block; font-size: 0.76rem; margin-bottom: 8px; color: rgba(255,255,255,0.55); font-weight: 700; text-transform: uppercase; letter-spacing: 0.05em; }
.form-field input,
.form-field select,
.form-field textarea {
  width: 100%;
  padding: 10px 2px;
  border: none;
  border-bottom: 1px solid rgba(255,255,255,0.3);
  background: transparent;
  color: #fff;
  font-family: inherit;
  font-size: 0.98rem;
  border-radius: 0;
}
.form-field select option { color: #111; }
.form-field input::placeholder, .form-field textarea::placeholder { color: rgba(255,255,255,0.32); }
.form-field input:focus, .form-field select:focus, .form-field textarea:focus {
  outline: none; border-bottom-color: var(--blue);
}
.form-note { font-size: 0.78rem; color: rgba(255,255,255,0.4); margin-top: 18px; text-align: center; }
.form-success {
  display: none;
  border: 1px solid rgba(127, 196, 236, 0.4);
  color: #d6ecfa;
  padding: 12px 0;
  font-size: 0.88rem;
  margin-bottom: 20px;
  border-radius: 0;
}
.form-success.show { display: block; }

@media (max-width: 640px) { .form-row { grid-template-columns: 1fr; gap: 0; } }
@media (max-width: 940px) { .contact-grid { grid-template-columns: 1fr; gap: 50px; } }

/* ---------- Footer ---------- */
.site-footer { background: var(--blue-darker); color: rgba(255,255,255,0.55); padding: 64px 0 30px; font-size: 0.9rem; }
.footer-grid { display: grid; grid-template-columns: 1.4fr 1fr 1fr; gap: 40px; margin-bottom: 44px; }
.footer-brand img { height: 26px; margin-bottom: 18px; }
.footer-brand p { max-width: 320px; line-height: 1.75; }
.footer-col h6 { color: #fff; font-size: 0.76rem; font-weight: 700; letter-spacing: 0.08em; text-transform: uppercase; margin-bottom: 18px; }
.footer-col ul { display: flex; flex-direction: column; gap: 11px; }
.footer-col a:hover { color: #fff; }
.footer-bottom { border-top: 1px solid rgba(255,255,255,0.1); padding-top: 26px; display: flex; justify-content: space-between; flex-wrap: wrap; gap: 12px; font-size: 0.8rem; }

@media (max-width: 780px) {
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .footer-brand { grid-column: 1 / -1; }
}
@media (max-width: 480px) { .footer-grid { grid-template-columns: 1fr; } }

/* ---------- Mobile nav ---------- */
@media (max-width: 980px) {
  .main-nav {
    position: fixed; top: 0; right: 0; height: 100vh; width: min(320px, 80vw);
    background: var(--navy);
    flex-direction: column; align-items: flex-start;
    padding: 100px 32px 32px; gap: 26px;
    transform: translateX(100%);
    transition: transform 0.3s ease;
    z-index: 1050;
  }
  .main-nav.open { transform: translateX(0); }
  .main-nav a { color: #fff !important; font-size: 0.95rem; }
  .nav-toggle { display: flex; }
  .header-cta .btn-outline-dark, .header-phone { display: none; }
  .nav-overlay { display: none; position: fixed; inset: 0; background: rgba(0,0,0,0.4); z-index: 1040; }
  .nav-overlay.show { display: block; }
}

/* ---------- Scroll reveal ---------- */
.reveal { opacity: 0; transform: translateY(24px); transition: opacity 0.7s ease, transform 0.7s ease; }
.reveal.visible { opacity: 1; transform: translateY(0); }

/* ---------- Back to top ---------- */
.to-top {
  position: fixed; bottom: 28px; right: 28px;
  width: 44px; height: 44px; border-radius: 50%;
  background: var(--ink); color: #fff;
  display: flex; align-items: center; justify-content: center;
  box-shadow: var(--shadow-md);
  opacity: 0; visibility: hidden; transform: translateY(10px);
  transition: all 0.3s ease; z-index: 900; cursor: pointer; border: none; font-size: 1.05rem;
}
.to-top.show { opacity: 1; visibility: visible; transform: translateY(0); }