:root {
  --green:       #1D9E75;
  --green-dark:  #0F6E56;
  --green-night: #071e14;
  --green-deep:  #0a2e22;
  --blue:        #185FA5;
  --blue-dark:   #0c3d5a;
  --teal-light:  #9FE1CB;
  --teal-pale:   #E1F5EE;
  --blue-pale:   #E6F1FB;
  --text:        #0a2e22;
  --text-mid:    #3D5A4E;
  --text-muted:  #7A8C85;
  --border:      #DDE8E3;
  --surface:     #F7FBFA;
  --white:       #FFFFFF;
  --grad-main:   linear-gradient(135deg, #1D9E75, #185FA5);
  --grad-dark:   linear-gradient(135deg, #0a2e22, #0c3d5a);
  --grad-light:  linear-gradient(135deg, #E1F5EE, #E6F1FB);
  --radius:      12px;
  --radius-lg:   20px;
  --shadow:      0 2px 20px rgba(0,0,0,0.07);
  --shadow-hover:0 10px 40px rgba(0,0,0,0.12);
  --font:        'Raleway', sans-serif;
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body { font-family: var(--font); color: var(--text); background: var(--white); line-height: 1.6; }
img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
button { cursor: pointer; font-family: var(--font); }

.container { max-width: 1140px; margin: 0 auto; padding: 0 32px; }
.section { padding: 80px 0; }
.section--alt { background: var(--surface); }

.site-nav {
  position: sticky; top: 0; z-index: 100;
  background: var(--white);
  border-bottom: 0.5px solid var(--border);
  padding: 0 32px;
  display: flex; align-items: center; justify-content: space-between;
  height: 68px;
}
.nav-logo { display: flex; align-items: center; gap: 10px; text-decoration: none; }
.nav-logo-text { font-size: 22px; font-weight: 200; color: var(--text); letter-spacing: 4px; }
.nav-logo-pet { font-size: 10px; font-weight: 700; color: var(--green-dark); letter-spacing: 5px; display: block; }
.nav-links { display: flex; gap: 32px; list-style: none; }
.nav-links a { font-size: 13px; font-weight: 400; color: var(--text-muted); transition: color 0.2s; letter-spacing: 0.3px; }
.nav-links a:hover, .nav-links a.active { color: var(--text); }
.nav-cta {
  background: var(--green-dark); color: var(--white);
  border: none; padding: 9px 20px; border-radius: var(--radius);
  font-size: 13px; font-weight: 500; letter-spacing: 0.3px;
  transition: background 0.2s;
}
.nav-cta:hover { background: var(--green); }

.hero { padding: 96px 0 72px; }
.hero-eyebrow { font-size: 11px; letter-spacing: 2.5px; text-transform: uppercase; color: var(--green); font-weight: 600; margin-bottom: 18px; }
.hero h1 { font-size: 48px; font-weight: 300; line-height: 1.15; letter-spacing: -0.5px; max-width: 580px; margin-bottom: 22px; }
.hero h1 strong { font-weight: 600; background: var(--grad-main); -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text; }
.hero-lead { font-size: 16px; color: var(--text-mid); line-height: 1.75; max-width: 520px; margin-bottom: 36px; font-weight: 300; }
.hero-actions { display: flex; gap: 14px; flex-wrap: wrap; }
.btn { display: inline-flex; align-items: center; gap: 8px; padding: 12px 24px; border-radius: var(--radius); font-size: 14px; font-weight: 500; letter-spacing: 0.3px; transition: all 0.2s; border: none; }
.btn-primary { background: var(--green-dark); color: var(--white); }
.btn-primary:hover { background: var(--green); }
.btn-secondary { background: transparent; color: var(--text); border: 0.5px solid var(--border); }
.btn-secondary:hover { border-color: var(--green); color: var(--green-dark); }

.stats-bar { display: grid; grid-template-columns: repeat(3, 1fr); border-top: 0.5px solid var(--border); border-bottom: 0.5px solid var(--border); }
.stat-item { padding: 28px 32px; border-right: 0.5px solid var(--border); }
.stat-item:last-child { border-right: none; }
.stat-num { font-size: 36px; font-weight: 200; background: var(--grad-main); -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text; margin-bottom: 4px; }
.stat-label { font-size: 13px; color: var(--text-muted); font-weight: 400; }

.why-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 20px; }
.why-card { background: var(--white); border: 0.5px solid var(--border); border-radius: var(--radius); padding: 28px; transition: box-shadow 0.2s; }
.why-card:hover { box-shadow: var(--shadow); }
.why-icon { width: 40px; height: 40px; background: var(--teal-pale); border-radius: 10px; display: flex; align-items: center; justify-content: center; margin-bottom: 16px; }
.why-card h3 { font-size: 15px; font-weight: 600; margin-bottom: 10px; }
.why-card p { font-size: 13px; color: var(--text-mid); line-height: 1.7; font-weight: 300; }

.section-eyebrow { font-size: 11px; letter-spacing: 2.5px; text-transform: uppercase; color: var(--green); font-weight: 600; margin-bottom: 12px; }
.section-title { font-size: 32px; font-weight: 300; line-height: 1.2; letter-spacing: -0.3px; margin-bottom: 16px; }
.section-lead { font-size: 15px; color: var(--text-mid); line-height: 1.75; max-width: 560px; margin-bottom: 48px; font-weight: 300; }

.wheel-wrapper { display: flex; gap: 48px; align-items: center; }
.wheel-svg-wrap { flex-shrink: 0; }
.wheel-detail {
  flex: 1; min-height: 280px; padding: 32px;
  background: var(--surface); border-radius: var(--radius-lg);
  border: 0.5px solid var(--border);
  display: flex; flex-direction: column; justify-content: center;
}
.wd-num { font-size: 10px; letter-spacing: 2px; text-transform: uppercase; font-weight: 600; color: var(--green); margin-bottom: 10px; }
.wd-title { font-size: 22px; font-weight: 500; color: var(--text); margin-bottom: 14px; line-height: 1.25; }
.wd-desc { font-size: 14px; color: var(--text-mid); line-height: 1.7; font-weight: 300; margin-bottom: 18px; }
.wd-tags { display: flex; flex-wrap: wrap; gap: 6px; }
.wd-tag { font-size: 11px; padding: 4px 12px; border-radius: 20px; font-weight: 400; }
.wd-idle { font-size: 15px; color: var(--text-muted); font-style: italic; font-weight: 300; }

.experts-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); gap: 24px; }

.c-card {
  background: var(--white); border: 0.5px solid var(--border);
  border-radius: var(--radius-lg); overflow: hidden;
  box-shadow: var(--shadow); transition: transform 0.2s, box-shadow 0.2s;
  display: flex; flex-direction: column;
}
.c-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-hover); }
.c-header { padding: 24px 22px 20px; position: relative; display: flex; align-items: center; gap: 16px; }
.c-avatar {
  width: 62px; height: 62px; border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  font-size: 20px; font-weight: 500; color: var(--white); flex-shrink: 0;
  border: 2.5px solid rgba(255,255,255,0.15); letter-spacing: 1px;
}
.c-header-text { flex: 1; }
.c-name { font-size: 17px; font-weight: 500; color: var(--white); line-height: 1.2; margin-bottom: 3px; }
.c-degree { font-size: 10.5px; color: rgba(255,255,255,0.5); font-weight: 300; letter-spacing: 0.3px; margin-bottom: 6px; }
.c-xp { display: inline-flex; align-items: center; gap: 5px; font-size: 11px; color: var(--teal-light); font-weight: 400; letter-spacing: 0.5px; }
.c-xp::before { content: ''; display: inline-block; width: 14px; height: 1.5px; background: linear-gradient(90deg, var(--green), var(--teal-light)); border-radius: 1px; }
.c-logo { position: absolute; top: 16px; right: 18px; opacity: 0.4; }
.c-body { padding: 20px 22px 22px; flex: 1; display: flex; flex-direction: column; }
.c-tags { display: flex; flex-wrap: wrap; gap: 6px; margin-bottom: 12px; }
.c-tag { font-size: 10.5px; font-weight: 600; letter-spacing: 1.2px; text-transform: uppercase; padding: 3px 10px; border-radius: 4px; background: var(--grad-light); color: var(--green-dark); }
.c-divider { height: 1px; margin-bottom: 14px; border-radius: 1px; opacity: 0.2; background: linear-gradient(90deg, var(--green), var(--blue)); }
.c-bio { font-size: 13px; color: var(--text-mid); line-height: 1.7; font-weight: 300; flex: 1; }
.c-accordion { margin-top: 16px; border-top: 0.5px solid var(--border); }
.c-acc-trigger {
  width: 100%; display: flex; align-items: center; justify-content: space-between;
  padding: 12px 0 0; background: none; border: none; cursor: pointer; font-family: var(--font);
}
.c-acc-label { font-size: 10px; font-weight: 700; letter-spacing: 2px; text-transform: uppercase; color: var(--green-dark); }
.c-acc-icon { width: 18px; height: 18px; border-radius: 50%; background: var(--teal-pale); display: flex; align-items: center; justify-content: center; flex-shrink: 0; transition: background 0.2s; }
.c-acc-icon svg { transition: transform 0.25s; display: block; }
.c-acc-icon.open { background: var(--green-dark); }
.c-acc-icon.open svg { transform: rotate(180deg); }
.c-acc-icon.open path { stroke: var(--white); }
.c-acc-body { max-height: 0; overflow: hidden; transition: max-height 0.35s ease, opacity 0.3s ease; opacity: 0; }
.c-acc-body.open { max-height: 400px; opacity: 1; }
.c-projects { padding: 14px 0 4px; display: flex; flex-direction: column; gap: 10px; }
.c-project { display: flex; gap: 10px; align-items: flex-start; }
.c-pdot { width: 6px; height: 6px; border-radius: 50%; margin-top: 5px; flex-shrink: 0; background: var(--grad-main); }
.c-pclient { font-size: 11px; font-weight: 600; color: var(--text); letter-spacing: 0.3px; }
.c-pdesc { font-size: 11.5px; color: var(--text-mid); font-weight: 300; line-height: 1.55; margin-top: 1px; }
.c-footer { padding: 13px 22px; border-top: 0.5px solid var(--border); display: flex; align-items: center; justify-content: space-between; }
.c-email { font-size: 11px; color: var(--green-dark); font-weight: 500; }
.c-avail { display: flex; align-items: center; gap: 6px; }
.c-dot { width: 7px; height: 7px; border-radius: 50%; background: var(--green); box-shadow: 0 0 0 3px rgba(29,158,117,0.15); }
.c-avail-label { font-size: 10px; color: var(--green); font-weight: 500; letter-spacing: 0.5px; }

.contact-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 64px; align-items: start; }
.contact-form { display: flex; flex-direction: column; gap: 14px; }
.form-group { display: flex; flex-direction: column; gap: 6px; }
.form-group label { font-size: 12px; font-weight: 600; letter-spacing: 0.5px; color: var(--text-mid); }
.form-group input, .form-group textarea {
  border: 0.5px solid var(--border); border-radius: var(--radius);
  padding: 11px 16px; font-size: 14px; font-family: var(--font);
  color: var(--text); background: var(--surface); transition: border-color 0.2s;
}
.form-group input:focus, .form-group textarea:focus { outline: none; border-color: var(--green); }
.form-group textarea { height: 110px; resize: none; }

.site-footer {
  background: var(--green-night); color: var(--white);
  padding: 48px 32px 28px;
  display: grid; grid-template-columns: 1fr 1fr 1fr; gap: 40px;
}
.footer-brand .footer-logo-text { font-size: 20px; font-weight: 200; letter-spacing: 4px; margin-bottom: 4px; }
.footer-brand .footer-logo-pet { font-size: 9px; font-weight: 700; color: var(--teal-light); letter-spacing: 5px; }
.footer-tagline { font-size: 11px; color: rgba(255,255,255,0.35); margin-top: 12px; letter-spacing: 1.5px; text-transform: uppercase; }
.footer-links h4 { font-size: 10px; letter-spacing: 2px; text-transform: uppercase; color: var(--teal-light); font-weight: 600; margin-bottom: 14px; }
.footer-links ul { list-style: none; display: flex; flex-direction: column; gap: 8px; }
.footer-links a { font-size: 13px; color: rgba(255,255,255,0.55); transition: color 0.2s; font-weight: 300; }
.footer-links a:hover { color: var(--white); }
.footer-bottom { grid-column: 1/-1; border-top: 0.5px solid rgba(255,255,255,0.08); padding-top: 20px; display: flex; justify-content: space-between; align-items: center; }
.footer-copy { font-size: 11px; color: rgba(255,255,255,0.25); font-weight: 300; }

.chain { display: flex; align-items: center; gap: 8px; flex-wrap: wrap; padding: 28px; background: var(--surface); border-radius: var(--radius-lg); border: 0.5px solid var(--border); }
.chain-step { padding: 10px 18px; background: var(--white); border: 0.5px solid var(--border); border-radius: var(--radius); font-size: 13px; color: var(--text); }
.chain-step--accent { background: var(--teal-pale); border-color: var(--green); color: var(--green-deep); font-weight: 600; }
.chain-arrow { color: var(--text-muted); font-size: 16px; }

@media (max-width: 900px) {
  .wheel-wrapper { flex-direction: column; }
  .contact-grid { grid-template-columns: 1fr; }
  .site-footer { grid-template-columns: 1fr; }
  .why-grid { grid-template-columns: 1fr; }
  .stats-bar { grid-template-columns: 1fr; }
  .nav-links { display: none; }
  .hero h1 { font-size: 34px; }
}
@media (max-width: 600px) {
  .container { padding: 0 20px; }
  .section { padding: 56px 0; }
}