* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: Georgia, "Times New Roman", serif;
  background: var(--page-bg);
  color: var(--text);
  line-height: 1.7;
}

body.theme-earth {
  --dark: #31572c;
  --accent: #8a5a2b;
  --gold: #d9b46f;
  --page-bg: #edf5e6;
  --card: #fffdf4;
  --soft: #f8f0d5;
  --text: #24351f;
  --hero: linear-gradient(135deg, rgba(49,87,44,.96), rgba(79,119,45,.9));
}

body.theme-road {
  --dark: #0b315c;
  --accent: #9d2119;
  --gold: #cfa866;
  --page-bg: #f7efe2;
  --card: #fffaf0;
  --soft: #fff4dc;
  --text: #24364d;
  --hero: linear-gradient(135deg, rgba(11,49,92,.96), rgba(16,35,61,.92));
}

body.theme-creative {
  --dark: #231942;
  --accent: #b45f2a;
  --gold: #f0cfa6;
  --page-bg: #fff4e5;
  --card: #fffaf3;
  --soft: #ffe8c7;
  --text: #2b213a;
  --hero: linear-gradient(135deg, rgba(35,25,66,.96), rgba(86,52,110,.9));
}

body.theme-work {
  --dark: #101828;
  --accent: #2f80ed;
  --gold: #9be7ef;
  --page-bg: #eef3f7;
  --card: #f8fbff;
  --soft: #ddebf2;
  --text: #152033;
  --hero: linear-gradient(135deg, rgba(16,24,40,.96), rgba(29,53,87,.92));
}

body.theme-memory {
  --dark: #5a1f2b;
  --accent: #7b2634;
  --gold: #f0cfa6;
  --page-bg: #f8efe3;
  --card: #fffaf3;
  --soft: #fff1df;
  --text: #2b211b;
  --hero: linear-gradient(135deg, rgba(72,25,34,.97), rgba(121,49,60,.94));
}

.site-header {
  padding: 34px 7% 64px;
  color: #fffaf0;
  background:
    var(--hero),
    radial-gradient(circle at 78% 16%, rgba(255,255,255,.16), transparent 25%);
}

.top-nav {
  max-width: 1180px;
  margin: 0 auto 58px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  flex-wrap: wrap;
}

.top-nav a {
  color: #fffaf0;
  text-decoration: none;
  font-weight: 900;
  border: 1px solid rgba(255,255,255,.3);
  padding: 9px 13px;
  border-radius: 999px;
  background: rgba(255,255,255,.07);
}

.top-nav a:hover {
  background: rgba(255,255,255,.18);
}

.hero {
  max-width: 1180px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1.15fr .85fr;
  gap: 42px;
  align-items: center;
}

.eyebrow {
  margin: 0 0 12px;
  color: var(--gold);
  text-transform: uppercase;
  letter-spacing: .12em;
  font-weight: 900;
}

.hero h1 {
  margin: 0 0 20px;
  font-size: clamp(50px, 8vw, 88px);
  line-height: .95;
  font-style: italic;
}

.hero p {
  margin: 0;
  font-size: 23px;
  line-height: 1.55;
}

.hero-card {
  padding: 30px;
  border-radius: 28px;
  background: var(--card);
  color: var(--text);
  box-shadow: 0 20px 45px rgba(0,0,0,.25);
}

.hero-card h2 {
  margin: 0 0 12px;
  color: var(--accent);
  font-size: 34px;
  font-style: italic;
}

.hero-card ul {
  margin: 0;
  padding-left: 22px;
  font-size: 18px;
}

.section {
  padding: 78px 8%;
}

.section.alt {
  background: var(--soft);
}

.section-heading {
  max-width: 880px;
  margin: 0 auto 42px;
  text-align: center;
}

.section-heading h2 {
  margin: 0 0 12px;
  color: var(--dark);
  font-size: clamp(38px, 5vw, 62px);
  font-style: italic;
}

.section-heading p {
  margin: 0;
  color: var(--text);
  font-size: 20px;
}

.card-grid {
  max-width: 1180px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 22px;
}

.site-card {
  display: block;
  padding: 28px;
  min-height: 230px;
  border-radius: 24px;
  background: var(--card);
  border: 1px solid rgba(0,0,0,.1);
  color: var(--text);
  text-decoration: none;
  box-shadow: 0 14px 28px rgba(40,30,20,.12);
  transition: transform .18s ease, box-shadow .18s ease;
}

.site-card:hover {
  transform: translateY(-5px);
  box-shadow: 0 22px 42px rgba(40,30,20,.2);
}

.site-card h3 {
  margin: 0 0 12px;
  color: var(--accent);
  font-size: 28px;
  font-style: italic;
}

.site-card p {
  margin: 0;
  font-size: 18px;
}

.page-wrap {
  max-width: 980px;
  margin: 0 auto;
  padding: 76px 8%;
}

.page-card {
  padding: 42px;
  border-radius: 28px;
  background: var(--card);
  border: 1px solid rgba(0,0,0,.1);
  box-shadow: 0 14px 30px rgba(40,30,20,.12);
}

.page-card h1 {
  margin: 0 0 16px;
  color: var(--dark);
  font-size: clamp(42px, 6vw, 68px);
  line-height: 1;
  font-style: italic;
}

.page-card h2 {
  margin: 42px 0 12px;
  color: var(--accent);
  font-size: 34px;
  font-style: italic;
}

.page-card p,
.page-card li {
  font-size: 20px;
  color: var(--text);
}

.tip-box {
  margin: 30px 0;
  padding: 24px;
  border-radius: 20px;
  background: var(--soft);
  border-left: 7px solid var(--accent);
}

.btn-row {
  margin-top: 34px;
}

.btn {
  display: inline-block;
  padding: 13px 22px;
  border-radius: 10px;
  background: var(--accent);
  color: #fffaf0;
  text-decoration: none;
  text-transform: uppercase;
  font-weight: 900;
}

.site-footer {
  padding: 34px 8%;
  text-align: center;
  background: var(--dark);
  color: #fffaf0;
  font-weight: 900;
}

.site-footer p {
  margin: 6px 0;
}

.scroll-top {
  position: fixed;
  right: 25px;
  bottom: 25px;
  width: 55px;
  height: 55px;
  border-radius: 50%;
  background: var(--accent);
  color: #fffaf0;
  text-decoration: none;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 28px;
  font-weight: 900;
  box-shadow: 0 5px 15px rgba(0,0,0,.25);
  z-index: 9999;
  transition: all .2s ease;
}

.scroll-top:hover {
  background: var(--dark);
  transform: translateY(-3px);
}

@media (max-width: 950px) {
  .hero,
  .card-grid {
    grid-template-columns: 1fr;
  }

  .site-header,
  .section,
  .page-wrap {
    padding-left: 6%;
    padding-right: 6%;
  }

  .top-nav {
    justify-content: center;
  }

  .hero p {
    font-size: 20px;
  }

  .page-card {
    padding: 30px;
  }
}