/* ======================================================
   C.J. LENNORD – Author, Musician, Thinker
   style.css — Main Stylesheet
   Palette inspired by original site: deep teal, dusty gold,
   burgundy accents, light blue highlights
   ====================================================== */

:root {
  --bg-deep:      #0e2428;
  --bg-mid:       #133139;
  --bg-light:     #1c4550;
  --gold:         #BCB696;
  --gold-bright:  #d4c8a0;
  --blue-soft:    #a7c9db;
  --blue-pale:    #d6eaf4;
  --burgundy:     #731D35;
  --burgundy-dk:  #4f1224;
  --teal-accent:  #3AAFA9;
  --teal-mid:     #2B7A78;
  --cream:        #DDDDCB;
  --text-main:    #c8dde8;
  --text-light:   #e8f4f8;
  --font-display: 'Cormorant Garamond', 'Palatino Linotype', serif;
  --font-heading: 'Josefin Sans', 'Verdana', sans-serif;
  --font-body:    'Lato', 'Trebuchet MS', sans-serif;
}

/* ---- Reset & Base ---- */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html { font-size: 62.5%; scroll-behavior: smooth; }

body {
  font-family: var(--font-body);
  font-size: 1.6rem;
  background-color: var(--bg-deep);
  color: var(--text-main);
  overflow-x: hidden;
  line-height: 1.75;
}

/* ---- Scrollbar ---- */
::-webkit-scrollbar { width: 7px; }
::-webkit-scrollbar-track { background: var(--bg-deep); }
::-webkit-scrollbar-thumb { background: var(--teal-mid); border-radius: 4px; }

/* ======================================================
   TYPOGRAPHY
   ====================================================== */
h1, h2, h3, h4 { line-height: 1.25; }

h1 {
  font-family: var(--font-display);
  font-size: clamp(3.2rem, 6vw, 6.5rem);
  font-weight: 700;
  font-style: italic;
  color: var(--blue-soft);
  letter-spacing: 3px;
  text-shadow: 1px 0 0 var(--burgundy-dk), 0 1px 0 var(--burgundy-dk),
               -1px 0 0 var(--burgundy-dk), 0 -1px 0 var(--burgundy-dk);
}

h2 {
  font-family: var(--font-display);
  font-size: clamp(2.4rem, 4vw, 4.2rem);
  font-weight: 400;
  font-style: italic;
  color: var(--gold);
  letter-spacing: 2px;
  text-align: center;
}

h3 {
  font-family: var(--font-heading);
  font-size: clamp(1.6rem, 2.5vw, 2.2rem);
  font-weight: 600;
  letter-spacing: 3px;
  text-transform: uppercase;
  color: var(--teal-accent);
}

p {
  font-family: var(--font-body);
  font-size: 1.7rem;
  color: var(--text-main);
  letter-spacing: 0.04rem;
}

a {
  color: var(--teal-accent);
  text-decoration: none;
  transition: color 0.25s ease;
}
a:hover { color: var(--gold-bright); }

/* ======================================================
   HORIZONTAL RULE
   ====================================================== */
hr {
  border: none;
  height: 1.5px;
  margin: 3rem auto;
  background: linear-gradient(to right, transparent, var(--gold), var(--teal-accent), var(--gold), transparent);
  max-width: 900px;
}

/* ======================================================
   PARTICLES CANVAS
   ====================================================== */
#particles-js {
  position: fixed;
  top: 0; left: 0;
  width: 100%; height: 100%;
  z-index: 0;
  pointer-events: none;
}

/* ======================================================
   NAV
   ====================================================== */
.topnav {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(14, 36, 40, 0.93);
  backdrop-filter: blur(8px);
  border-bottom: 1.5px solid var(--teal-mid);
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  padding: 0 2rem;
}

.topnav a {
  display: inline-block;
  color: var(--gold);
  font-family: var(--font-heading);
  font-size: 1.35rem;
  font-weight: 700;
  letter-spacing: 1.8px;
  text-transform: uppercase;
  padding: 1.6rem 1.4rem;
  text-decoration: none;
  transition: color 0.25s, background 0.25s;
  border-bottom: 2px solid transparent;
}

.topnav a:hover, .topnav a.active {
  color: var(--teal-accent);
  border-bottom-color: var(--teal-accent);
}

.topnav .nav-logo-text {
  font-family: var(--font-display);
  font-style: italic;
  font-size: 2.4rem;
  color: var(--blue-soft);
  letter-spacing: 2px;
  margin-right: auto;
  padding: 1rem 0;
  border-bottom: none;
}
.topnav .nav-logo-text:hover { color: var(--gold-bright); border-bottom-color: transparent; }

.nav-hamburger {
  display: none;
  font-size: 2.2rem;
  cursor: pointer;
  color: var(--gold);
  background: none;
  border: none;
  padding: 1rem;
  margin-left: auto;
}

.nav-links { display: flex; flex-wrap: wrap; }

@media (max-width: 768px) {
  .nav-hamburger { display: block; }
  .nav-links {
    display: none;
    flex-direction: column;
    width: 100%;
    background: rgba(14, 36, 40, 0.97);
    border-top: 1px solid var(--teal-mid);
  }
  .nav-links.open { display: flex; }
  .topnav a { padding: 1.4rem 2rem; width: 100%; }
}

/* ======================================================
   HERO SECTION
   ====================================================== */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  z-index: 1;
  overflow: hidden;
}

.hero-bg {
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse at 30% 60%, rgba(58,175,169,0.12) 0%, transparent 55%),
    radial-gradient(ellipse at 75% 30%, rgba(113,29,53,0.18) 0%, transparent 50%),
    linear-gradient(170deg, #0e2428 0%, #133139 45%, #0a1f23 100%);
  z-index: -1;
}

/* Decorative diagonal line */
.hero-bg::after {
  content: '';
  position: absolute;
  top: 0; left: -10%;
  width: 120%; height: 100%;
  background: repeating-linear-gradient(
    -55deg,
    rgba(188,182,150,0.03) 0px,
    rgba(188,182,150,0.03) 1px,
    transparent 1px,
    transparent 60px
  );
}

.hero-content {
  position: relative;
  z-index: 2;
  max-width: 900px;
  padding: 4rem 2rem;
}

.hero-eyebrow {
  font-family: var(--font-heading);
  font-size: 1.2rem;
  letter-spacing: 6px;
  text-transform: uppercase;
  color: var(--teal-accent);
  margin-bottom: 1.5rem;
  opacity: 0;
  animation: fadeUp 0.8s ease forwards 0.2s;
}

.hero h1 {
  margin-bottom: 2rem;
  opacity: 0;
  animation: fadeUp 0.9s ease forwards 0.5s;
}

.hero-tagline {
  font-family: var(--font-display);
  font-size: clamp(1.8rem, 3vw, 2.6rem);
  font-style: italic;
  color: var(--cream);
  letter-spacing: 1.5px;
  margin-bottom: 3rem;
  opacity: 0;
  animation: fadeUp 0.9s ease forwards 0.8s;
}

.hero-divider {
  width: 80px;
  height: 2px;
  background: linear-gradient(to right, var(--burgundy), var(--teal-accent));
  margin: 0 auto 3rem;
  opacity: 0;
  animation: fadeUp 0.8s ease forwards 1s;
}

.hero-cta-group {
  display: flex;
  gap: 1.5rem;
  justify-content: center;
  flex-wrap: wrap;
  opacity: 0;
  animation: fadeUp 0.9s ease forwards 1.2s;
}

/* ======================================================
   BUTTONS
   ====================================================== */
.btn {
  display: inline-block;
  font-family: var(--font-heading);
  font-size: 1.3rem;
  font-weight: 700;
  letter-spacing: 2px;
  text-transform: uppercase;
  padding: 1.2rem 2.8rem;
  border-radius: 3px;
  cursor: pointer;
  transition: all 0.25s ease;
  text-decoration: none;
}

.btn-primary {
  background: var(--teal-mid);
  color: var(--cream);
  border: 2px solid var(--teal-mid);
}
.btn-primary:hover {
  background: var(--teal-accent);
  border-color: var(--teal-accent);
  color: var(--bg-deep);
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(58,175,169,0.3);
}

.btn-secondary {
  background: transparent;
  color: var(--gold);
  border: 2px solid var(--gold);
}
.btn-secondary:hover {
  background: var(--gold);
  color: var(--bg-deep);
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(188,182,150,0.25);
}

/* ======================================================
   SECTION COMMONS
   ====================================================== */
section {
  position: relative;
  z-index: 1;
  padding: 8rem 2rem;
}

.section-inner {
  max-width: 1100px;
  margin: 0 auto;
}

.section-header {
  text-align: center;
  margin-bottom: 5rem;
}

.section-header h2 { margin-bottom: 1.2rem; }

.section-header p {
  max-width: 640px;
  margin: 0 auto;
  color: var(--blue-soft);
  font-size: 1.75rem;
  font-style: italic;
}

.section-eyebrow {
  font-family: var(--font-heading);
  font-size: 1.1rem;
  letter-spacing: 5px;
  text-transform: uppercase;
  color: var(--teal-accent);
  display: block;
  margin-bottom: 0.8rem;
}

/* Alternating section backgrounds */
section.alt-bg {
  background: rgba(28, 69, 80, 0.35);
}
section.alt-bg::before {
  content: '';
  position: absolute;
  inset: 0;
  background: repeating-linear-gradient(
    90deg, rgba(188,182,150,0.015) 0px, rgba(188,182,150,0.015) 1px,
    transparent 1px, transparent 120px
  );
  pointer-events: none;
}

/* ======================================================
   ABOUT SECTION
   ====================================================== */
.about-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 5rem;
  align-items: center;
}

@media (max-width: 768px) {
  .about-grid { grid-template-columns: 1fr; gap: 3rem; }
}

.about-portrait-wrap {
  display: flex;
  justify-content: center;
}

.portrait-frame {
  position: relative;
  width: 280px;
  height: 280px;
}

.portrait-frame .portrait-placeholder {
  width: 100%;
  height: 100%;
  border-radius: 30% 70% 70% 30% / 30% 30% 70% 70%;
  background: linear-gradient(135deg, var(--bg-light), var(--teal-mid));
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-display);
  font-size: 8rem;
  font-style: italic;
  color: var(--gold);
  border: 3px solid var(--teal-mid);
  transition: border-radius 0.6s ease, box-shadow 0.4s;
  cursor: pointer;
  box-shadow: 0 0 30px rgba(58,175,169,0.2);
}

.portrait-frame .portrait-placeholder:hover {
  border-radius: 50%;
  box-shadow: 0 0 50px rgba(58,175,169,0.45);
}

/* If an actual photo is used */
.portrait-frame img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  border-radius: 30% 70% 70% 30% / 30% 30% 70% 70%;
  border: 3px solid var(--teal-mid);
  cursor: pointer;
  transition: border-radius 0.6s ease, box-shadow 0.4s;
  box-shadow: 0 0 30px rgba(58,175,169,0.2);
}
.portrait-frame img:hover {
  border-radius: 50%;
  box-shadow: 0 0 50px rgba(58,175,169,0.45);
}

.portrait-deco {
  position: absolute;
  bottom: -15px; right: -15px;
  width: 80px; height: 80px;
  border: 2px solid var(--gold);
  border-radius: 4px;
  opacity: 0.4;
}

.about-text h2 { text-align: left; margin-bottom: 2rem; }

.about-text p { margin-bottom: 1.8rem; font-size: 1.7rem; }

.about-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.9rem;
  margin-top: 2.5rem;
}

.tag {
  font-family: var(--font-heading);
  font-size: 1.15rem;
  letter-spacing: 1.5px;
  text-transform: uppercase;
  color: var(--teal-accent);
  border: 1px solid var(--teal-mid);
  border-radius: 2px;
  padding: 0.5rem 1.2rem;
  background: rgba(58,175,169,0.08);
}

/* ======================================================
   BOOKS / WORKS SECTION
   ====================================================== */
.books-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 3rem;
}

.book-card {
  background: var(--bg-mid);
  border: 1px solid rgba(188,182,150,0.18);
  border-radius: 6px;
  padding: 3rem 2.5rem;
  position: relative;
  overflow: hidden;
  transition: transform 0.3s ease, box-shadow 0.3s ease, border-color 0.3s;
}

.book-card::before {
  content: '';
  position: absolute;
  top: 0; left: 0;
  width: 4px; height: 100%;
  background: var(--burgundy);
  transition: width 0.3s ease;
}

.book-card:hover {
  transform: translateY(-6px);
  box-shadow: 0 16px 40px rgba(0,0,0,0.35);
  border-color: rgba(188,182,150,0.4);
}

.book-card:hover::before { width: 6px; background: var(--teal-accent); }

.book-category {
  font-family: var(--font-heading);
  font-size: 1.05rem;
  letter-spacing: 3px;
  text-transform: uppercase;
  color: var(--gold);
  margin-bottom: 1.2rem;
  display: block;
}

.book-card h3 {
  font-family: var(--font-display);
  font-style: italic;
  font-size: 2.2rem;
  font-weight: 600;
  text-transform: none;
  letter-spacing: 1px;
  color: var(--cream);
  margin-bottom: 1.2rem;
  line-height: 1.3;
}

.book-card p { font-size: 1.55rem; color: var(--blue-soft); margin-bottom: 2rem; }

.book-card .btn { font-size: 1.2rem; padding: 0.9rem 2rem; }

/* Series badge */
.series-badge {
  position: absolute;
  top: 1.5rem; right: 1.5rem;
  font-family: var(--font-heading);
  font-size: 1rem;
  letter-spacing: 1px;
  color: var(--burgundy);
  border: 1px solid var(--burgundy);
  padding: 0.3rem 0.8rem;
  border-radius: 20px;
  background: rgba(113,29,53,0.1);
}

/* ======================================================
   MUSIC SECTION
   ====================================================== */
.music-section { background: var(--bg-mid); }

.music-layout {
  display: grid;
  grid-template-columns: 1fr 1.4fr;
  gap: 5rem;
  align-items: start;
}

@media (max-width: 900px) {
  .music-layout { grid-template-columns: 1fr; gap: 3rem; }
}

.music-info h2 { text-align: left; margin-bottom: 2rem; }
.music-info p { font-size: 1.7rem; margin-bottom: 1.8rem; }

.music-details {
  list-style: none;
  margin: 2.5rem 0;
}

.music-details li {
  display: flex;
  align-items: flex-start;
  gap: 1.2rem;
  margin-bottom: 1.4rem;
  font-size: 1.6rem;
  color: var(--blue-soft);
}

.music-details li::before {
  content: '♩';
  color: var(--gold);
  font-size: 1.6rem;
  flex-shrink: 0;
  margin-top: 0.1rem;
}

.soundcloud-embed {
  border-radius: 8px;
  overflow: hidden;
  box-shadow: 0 8px 32px rgba(0,0,0,0.4);
  border: 1px solid rgba(188,182,150,0.15);
}

.soundcloud-embed iframe {
  display: block;
  width: 100%;
}

/* ======================================================
   LINKS / RESOURCES SECTION
   ====================================================== */
.links-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 2rem;
}

.link-card {
  background: rgba(28, 69, 80, 0.5);
  border: 1px solid rgba(58,175,169,0.2);
  border-radius: 8px;
  padding: 2.5rem 2rem;
  text-align: center;
  text-decoration: none;
  color: var(--text-main);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 1.2rem;
  transition: all 0.3s ease;
}

.link-card:hover {
  background: rgba(58,175,169,0.12);
  border-color: var(--teal-accent);
  transform: translateY(-4px);
  box-shadow: 0 12px 30px rgba(0,0,0,0.25);
  color: var(--cream);
}

.link-icon {
  font-size: 3rem;
  line-height: 1;
}

.link-card h3 {
  font-family: var(--font-display);
  font-style: italic;
  font-size: 1.9rem;
  font-weight: 600;
  text-transform: none;
  letter-spacing: 0.5px;
  color: var(--gold);
}

.link-card p { font-size: 1.45rem; color: var(--blue-soft); line-height: 1.5; }

/* ======================================================
   TESTIMONIALS / BLOCKQUOTES
   ====================================================== */
.quotes-section { background: linear-gradient(180deg, var(--bg-deep) 0%, rgba(28,69,80,0.4) 50%, var(--bg-deep) 100%); }

.quotes-wrap {
  max-width: 900px;
  margin: 0 auto;
}

blockquote {
  color: var(--blue-soft);
  margin: 0 0 4rem;
  padding: 2rem 2.5rem;
  line-height: 2.5;
  letter-spacing: 1.5px;
  position: relative;
  transition: transform 0.3s;
}
blockquote:hover { transform: translateX(5px); }

blockquote:nth-of-type(odd) {
  border-left: 6px solid var(--burgundy);
  text-align: left;
  padding-right: 3rem;
}
blockquote:nth-of-type(even) {
  border-right: 6px solid var(--burgundy);
  border-left: none;
  text-align: right;
  padding-left: 3rem;
}

blockquote p {
  display: inline;
  font-family: 'Cormorant Garamond', 'Palatino Linotype', serif;
  font-style: italic;
  font-size: 2rem;
  letter-spacing: 0.2rem;
  color: var(--blue-soft);
}

blockquote p:before {
  content: open-quote;
  color: var(--burgundy);
  font-size: 4em;
  line-height: 0.1em;
  margin-right: 0.15em;
  vertical-align: -0.45em;
}
blockquote p:after {
  content: close-quote;
  color: var(--burgundy);
  font-size: 4em;
  line-height: 0.1em;
  margin-left: 0.1em;
  vertical-align: -0.5em;
}

blockquote footer {
  color: var(--teal-accent);
  font-family: var(--font-heading);
  font-size: 1.4rem;
  letter-spacing: 2px;
  display: block;
  margin-top: 0.8rem;
}
blockquote footer::before {
  content: '\00a0\00a0— ';
  color: var(--gold);
}

@media (min-width: 768px) {
  blockquote:nth-of-type(odd) { margin-right: 15%; }
  blockquote:nth-of-type(even) { margin-left: 15%; }
}

/* ======================================================
   CONTACT FORM
   ====================================================== */
.contact-section { background: var(--bg-mid); }

.contact-layout {
  display: grid;
  grid-template-columns: 1fr 1.6fr;
  gap: 5rem;
  align-items: start;
}

@media (max-width: 900px) {
  .contact-layout { grid-template-columns: 1fr; gap: 3rem; }
}

.contact-info h2 { text-align: left; margin-bottom: 2rem; }
.contact-info p { font-size: 1.7rem; margin-bottom: 2rem; }

.contact-social {
  display: flex;
  gap: 1.5rem;
  margin-top: 2.5rem;
  flex-wrap: wrap;
}

.social-link {
  display: inline-flex;
  align-items: center;
  gap: 0.7rem;
  font-family: var(--font-heading);
  font-size: 1.2rem;
  letter-spacing: 1.5px;
  text-transform: uppercase;
  color: var(--gold);
  border: 1.5px solid rgba(188,182,150,0.3);
  padding: 0.8rem 1.6rem;
  border-radius: 3px;
  transition: all 0.25s;
}
.social-link:hover {
  background: var(--gold);
  color: var(--bg-deep);
  border-color: var(--gold);
  transform: translateY(-2px);
}

.contact-form {
  background: rgba(14,36,40,0.6);
  border: 1px solid rgba(188,182,150,0.15);
  border-radius: 8px;
  padding: 3.5rem;
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.5rem;
}
@media (max-width: 600px) { .form-row { grid-template-columns: 1fr; } }

.form-group {
  margin-bottom: 2rem;
}

.form-group label {
  display: block;
  font-family: var(--font-heading);
  font-size: 1.2rem;
  letter-spacing: 2px;
  text-transform: uppercase;
  color: var(--cream);
  margin-bottom: 0.7rem;
}

.form-group input,
.form-group select,
.form-group textarea {
  width: 100%;
  background: rgba(19,49,57,0.8);
  color: var(--text-light);
  border: 1.5px solid rgba(58,175,169,0.3);
  border-radius: 4px;
  padding: 1.1rem 1.4rem;
  font-family: var(--font-body);
  font-size: 1.55rem;
  letter-spacing: 0.5px;
  transition: border-color 0.25s, box-shadow 0.25s;
  line-height: 1.6;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--teal-accent);
  box-shadow: 0 0 0 3px rgba(58,175,169,0.15);
  background: rgba(28,69,80,0.9);
}

.form-group select option { background: var(--bg-mid); }

.form-group textarea { resize: vertical; min-height: 14rem; }

.form-submit-row {
  display: flex;
  gap: 1.2rem;
  margin-top: 1rem;
}

.form-submit-row .btn { flex: 1; text-align: center; border: none; }
.btn-reset {
  background: transparent;
  color: var(--gold);
  border: 1.5px solid rgba(188,182,150,0.35) !important;
  flex: 0.4 !important;
}
.btn-reset:hover {
  background: rgba(188,182,150,0.1);
  color: var(--gold-bright);
}

/* ======================================================
   FOOTER
   ====================================================== */
footer.site-footer {
  position: relative;
  z-index: 1;
  background: linear-gradient(180deg, var(--bg-mid), var(--bg-deep));
  border-top: 1px solid rgba(188,182,150,0.15);
  padding: 4rem 2rem 2.5rem;
  text-align: center;
}

.footer-logo {
  font-family: var(--font-display);
  font-style: italic;
  font-size: 3rem;
  color: var(--blue-soft);
  letter-spacing: 2px;
  margin-bottom: 0.5rem;
}

.footer-tagline {
  font-family: var(--font-heading);
  font-size: 1.1rem;
  letter-spacing: 4px;
  text-transform: uppercase;
  color: var(--teal-mid);
  margin-bottom: 2.5rem;
}

.footer-links {
  display: flex;
  justify-content: center;
  gap: 2rem;
  flex-wrap: wrap;
  margin-bottom: 2.5rem;
}

.footer-links a {
  font-family: var(--font-heading);
  font-size: 1.2rem;
  letter-spacing: 1.5px;
  text-transform: uppercase;
  color: var(--gold);
  opacity: 0.75;
  transition: opacity 0.2s;
}
.footer-links a:hover { opacity: 1; }

.footer-copy {
  font-size: 1.3rem;
  color: rgba(167,201,219,0.45);
  letter-spacing: 0.5px;
}

.footer-copy a { color: rgba(167,201,219,0.6); }

/* ======================================================
   SCROLL REVEAL ANIMATIONS
   ====================================================== */
@keyframes fadeUp {
  from { opacity: 0; transform: translateY(28px); }
  to   { opacity: 1; transform: translateY(0); }
}

@keyframes fadeIn {
  from { opacity: 0; }
  to   { opacity: 1; }
}

.reveal {
  opacity: 0;
  transform: translateY(32px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}
.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}
.reveal-delay-1 { transition-delay: 0.1s; }
.reveal-delay-2 { transition-delay: 0.2s; }
.reveal-delay-3 { transition-delay: 0.35s; }
.reveal-delay-4 { transition-delay: 0.5s; }

/* ======================================================
   UTILITY
   ====================================================== */
.text-center { text-align: center; }
.mt-2 { margin-top: 2rem; }
.mt-4 { margin-top: 4rem; }
.mb-2 { margin-bottom: 2rem; }

/* Back-to-top button */
#backToTop {
  display: none;
  position: fixed;
  bottom: 3rem;
  right: 2.5rem;
  z-index: 99;
  background: var(--teal-mid);
  color: var(--cream);
  border: none;
  border-radius: 50%;
  width: 4.8rem;
  height: 4.8rem;
  font-size: 2rem;
  cursor: pointer;
  box-shadow: 0 4px 18px rgba(0,0,0,0.35);
  transition: background 0.25s, transform 0.2s;
  line-height: 4.8rem;
  text-align: center;
}
#backToTop:hover {
  background: var(--teal-accent);
  transform: translateY(-3px);
}
#backToTop:active { transform: translateY(1px); }