/* =============================================
   Chysio — Shared design system
   header / footer / base styles used by every page
   (index.html, about.html, services.html, contact.html)
   Edit THIS file to change header/footer/colors site-wide.
   ============================================= */

:root{
  --bg:            #F5F9F6;
  --mint:          #DCEBE2;
  --mint-soft:     #EAF3EE;
  --mint-deep:     #AAD2C1;
  --teal:          #3E9583;
  --teal-dark:     #2E7365;
  --pine:          #1F2E27;
  --pine-2:        #2B3E34;
  --gray:          #6E7C75;
  --gray-light:    #94A39B;
  --text:          #1B2621;
  --white:         #FFFFFF;

  --font-display: "Fraunces", serif;
  --font-body: "Inter", sans-serif;

  --radius-lg: 28px;
  --radius-md: 18px;
  --radius-sm: 10px;
  --shadow-card: 0 20px 45px -25px rgba(27,38,27,.35);
  --container: 1180px;
}

*,*::before,*::after{ box-sizing:border-box; }
html{ scroll-behavior:smooth; }
body{
  margin:0;
  font-family:var(--font-body);
  color:var(--text);
  background:var(--bg);
  line-height:1.6;
  -webkit-font-smoothing:antialiased;
}
img{ width:100%; max-width:100%; display:block; object-fit: cover; height: 100%;}
a{ color:inherit; text-decoration:none; }
ul{ list-style:none; margin:0; padding:0; }
button{ font-family:inherit; cursor:pointer; }
h1,h2,h3{ font-family:var(--font-display); margin:0 0 .5em; line-height:1.15; font-weight:600; }
p{ margin:0 0 1em; color:var(--gray); }
.display{ font-family:var(--font-display); }

.container{
  width:100%;
  max-width:var(--container);
  margin:0 auto;
  padding:0 24px;
}

.eyebrow{
  display:inline-block;
  font-size:.8rem;
  font-weight:600;
  letter-spacing:.06em;
  color:var(--teal-dark);
  background:var(--mint-soft);
  padding:6px 14px;
  border-radius:999px;
  margin-bottom:14px;
}

.section{ padding:96px 0; }
.section-head{ max-width:640px; margin-bottom:56px; }
.section-head.center{ margin-left:auto; margin-right:auto; text-align:center; }
.section-sub{ margin-top:.4em; }

/* ---------- Signature spine motif ---------- */
.spine-motif{
  position:fixed;
  top:0; left:0;
  width:40px; height:100vh;
  opacity:.16;
  pointer-events:none;
  z-index:0;
}
.spine-motif path{
  fill:none;
  stroke:var(--teal);
  stroke-width:3;
  stroke-linecap:round;
}
@media (max-width:900px){ .spine-motif{ display:none; } }

/* ---------- Buttons ---------- */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  padding:14px 30px;
  border-radius:999px;
  font-weight:600;
  font-size:.95rem;
  border:1px solid transparent;
  transition:transform .2s ease, background .2s ease, color .2s ease, box-shadow .2s ease;
  white-space:nowrap;
}
.btn:hover{ transform:translateY(-2px); }
.btn-primary{ background:var(--pine); color:var(--white); }
.btn-primary:hover{ background:var(--teal-dark); }
.btn-dark{ background:var(--pine); color:var(--white); }
.btn-dark:hover{ background:var(--teal-dark); }
.btn-light{ background:var(--white); color:var(--pine); }
.btn-light:hover{ box-shadow:0 10px 25px -10px rgba(0,0,0,.3); }
.btn.small{ padding:10px 20px; font-size:.85rem; margin-top:10px; color: black; text-align: center;}

.link-arrow{
  display:inline-block;
  font-weight:600;
  font-size:.9rem;
  color:var(--pine);
  border-bottom:1px solid transparent;
  transition:border-color .2s ease, color .2s ease;
}
.link-arrow:hover{ color:var(--teal-dark); border-color:currentColor; }

.play-btn{
  width:56px; height:56px;
  border-radius:50%;
  background:var(--pine);
  color:var(--white);
  border:none;
  display:flex; align-items:center; justify-content:center;
  font-size:1rem;
  box-shadow:0 12px 30px -10px rgba(31,46,39,.6);
  transition:transform .2s ease, background .2s ease;
  flex-shrink:0;
}
.play-btn:hover{ transform:scale(1.08); background:var(--teal-dark); }
.play-icon{ transform:translateX(2px); }

/* ---------- Placeholder image blocks ---------- */
.ph-image{
  position:relative;
  height:var(--ph-h, 360px);
  width:100%;
  border-radius:var(--radius-lg);
  background:
    linear-gradient(135deg, rgba(255,255,255,.12), rgba(255,255,255,0)) ,
    repeating-linear-gradient(45deg, var(--mint-deep) 0 2px, transparent 2px 14px),
    linear-gradient(160deg, var(--teal) 0%, var(--pine-2) 100%);
  color:rgba(255,255,255,.85);
  display:flex;
  align-items:center;
  justify-content:center;
  font-weight:600;
  letter-spacing:.04em;
  font-size:.95rem;
  overflow:hidden;
}

/* ---------- Generic card grid ---------- */
.card-grid{ display:grid; gap:28px; }
.card-grid.three{ grid-template-columns:repeat(3,1fr); }
.card-grid.two{ grid-template-columns:repeat(2,1fr); }

.feature-card{
  background:var(--white);
  border-radius:var(--radius-md);
  padding:34px 28px;
  box-shadow:var(--shadow-card);
}
.feature-icon{
  width:52px; height:52px;
  border-radius:14px;
  background:var(--mint-soft);
  display:flex; align-items:center; justify-content:center;
  font-size:1.4rem;
  margin-bottom:18px;
}

/* ---------- Generic step/process grid (How We Work, Services process) ---------- */
.step-grid{
  display:grid;
  grid-template-columns:repeat(4,1fr);
  gap:28px;
  text-align:center;
}
.step-num{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  width:64px; height:64px;
  border-radius:50%;
  background:var(--mint-soft);
  color:var(--teal-dark);
  font-family:var(--font-display);
  font-size:1.3rem;
  margin-bottom:16px;
}
.step-item:nth-child(2n) .step-num{ background:var(--mint-deep); color:var(--pine); }

/* ---------- Generic stat grid (Achievements, etc.) ---------- */
.stat-grid{
  display:grid;
  grid-template-columns:repeat(4,1fr);
  gap:24px;
  text-align:center;
}
.stat-item{
  background:var(--white);
  border-radius:var(--radius-md);
  padding:34px 20px;
  box-shadow:var(--shadow-card);
}
.stat-icon{
  width:52px; height:52px; margin:0 auto 14px;
  border-radius:50%;
  background:var(--mint-soft);
  color:var(--teal-dark);
  display:flex; align-items:center; justify-content:center;
  font-size:1.3rem;
}
.stat-num{ font-family:var(--font-display); font-size:2.1rem; color:var(--pine); }
.stat-plus{ font-family:var(--font-display); font-size:2.1rem; color:var(--pine); }
.stat-item p{ margin:.3em 0 0; font-weight:600; color:var(--gray); }

/* ---------- Header ---------- */
.site-header{
  position:sticky;
  top:0;
  z-index:50;
  background:rgba(245,249,246,.85);
  backdrop-filter:blur(10px);
  border-bottom:1px solid rgba(31,46,39,.06);
}
.header-inner{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:24px;
  padding-top:16px;
  padding-bottom:16px;
}
.logo{
  font-family:var(--font-display);
  font-size:1.4rem;
  font-weight:700;
  display:flex;
  align-items:center;
  gap:8px;
  color:var(--pine);
}
.logo.light{ color:var(--white); }
.logo-mark{ color:var(--teal); }

.main-nav{
  display:flex;
  gap:32px;
  font-weight:500;
  font-size:.95rem;
}
.main-nav a{ position:relative; padding:4px 0; }
.main-nav a::after{
  content:"";
  position:absolute; left:0; bottom:-2px;
  width:0; height:2px; background:var(--teal);
  transition:width .2s ease;
}
.main-nav a:hover::after,
.main-nav a.active::after{ width:100%; }

.header-phone{
  display:flex;
  align-items:center;
  gap:8px;
  font-weight:600;
  background:var(--pine);
  color:var(--white);
  padding:10px 18px;
  border-radius:999px;
  font-size:.9rem;
}
.phone-icon{ font-size:1rem; }

.nav-toggle{
  display:none;
  flex-direction:column;
  gap:5px;
  background:none;
  border:none;
  padding:6px;
}
.nav-toggle span{
  width:24px; height:2px; background:var(--pine); border-radius:2px;
  transition:transform .25s ease, opacity .25s ease;
}
.nav-toggle.active span:nth-child(1){ transform:translateY(7px) rotate(45deg); }
.nav-toggle.active span:nth-child(2){ opacity:0; }
.nav-toggle.active span:nth-child(3){ transform:translateY(-7px) rotate(-45deg); }

/* ---------- Page hero banner (about/services/contact inner pages) ---------- */
.page-hero{
  background:linear-gradient(180deg, var(--mint) 0%, var(--mint-soft) 70%, var(--bg) 100%);
  padding:100px 0 40px;
  text-align:center;
}
.page-hero h1{ color:var(--pine); font-size:clamp(2.1rem, 3.6vw, 3rem); }
.page-hero .section-sub{ max-width:560px; margin-left:auto; margin-right:auto; }
.breadcrumb{
  display:flex; justify-content:center; gap:8px;
  font-size:.9rem; font-weight:600; color:var(--gray);
  margin-bottom:16px;
}
.breadcrumb a{ color:var(--teal-dark); }
.breadcrumb a:hover{ text-decoration:underline; }

/* ---------- CTA banner (reused across inner pages) ---------- */
.cta-banner{
  background:var(--pine);
  border-radius:var(--radius-lg);
  padding:56px;
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  justify-content:space-between;
  gap:24px;
}
.cta-banner h2{ color:var(--white); margin:0 0 .3em; }
.cta-banner p{ color:rgba(255,255,255,.7); margin:0; max-width:420px; }
.cta-banner-actions{ display:flex; gap:14px; flex-wrap:wrap; }

/* ---------- Footer ---------- */
.site-footer{ background:var(--pine); color:rgba(255,255,255,.75); padding:72px 0 0; }
.footer-grid{
  display:grid;
  grid-template-columns:1.4fr 1fr 1fr 1fr;
  gap:40px;
  padding-bottom:48px;
  border-bottom:1px solid rgba(255,255,255,.12);
}
.footer-brand p{ color:rgba(255,255,255,.6); max-width:260px; }
.social-row{ display:flex; gap:12px; margin-top:16px; }
.social-row a{
  width:36px; height:36px;
  display:flex; align-items:center; justify-content:center;
  font-size:.8rem;
}
.footer-col h4{ color:var(--white); font-family:var(--font-body); font-size:.95rem; margin-bottom:16px; }
.footer-col a, .footer-col p{ display:block; margin-bottom:10px; color:rgba(255,255,255,.65); }
.footer-bottom{ text-align:center; padding:24px 0; font-size:.85rem; color:rgba(255,255,255,.45); }

/* ---------- Video modal ---------- */
.video-modal{
  position:fixed; inset:0; z-index:100;
  background:rgba(15,22,18,.85);
  display:flex; align-items:center; justify-content:center;
  padding:24px;
}
.video-modal[hidden]{ display:none; }
.video-modal-inner{
  position:relative;
  width:min(880px, 100%);
  aspect-ratio:16/9;
  border-radius:var(--radius-lg);
  overflow:hidden;
}
.video-modal-close{
  position:absolute; top:16px; right:16px;
  width:40px; height:40px;
  border-radius:50%;
  background:var(--white);
  border:none;
  font-size:1rem;
  z-index:2;
}

/* ---------- Scroll reveal ---------- */
[data-animate]{
  opacity:0;
  transform:translateY(24px);
  transition:opacity .7s ease, transform .7s ease;
}
[data-animate].in-view{ opacity:1; transform:translateY(0); }

/* =============================================
   Responsive — Tablet (shared)
   ============================================= */
@media (max-width: 1024px){
  .container{ padding:0 20px; }
  .section{ padding:76px 0; }

  .main-nav{ display:none; }
  .header-phone{ display:none; }
  .nav-toggle{ display:flex; }

  .card-grid.three{ grid-template-columns:repeat(2,1fr); }
  .stat-grid{ grid-template-columns:repeat(2,1fr); }
  .step-grid{ grid-template-columns:repeat(2,1fr); }
  .footer-grid{ grid-template-columns:1fr 1fr; }
  .cta-banner{ text-align:center; justify-content:center; }
  .cta-banner p{ margin-left:auto; margin-right:auto; }
}

/* ---------- Mobile nav open ---------- */
@media (max-width: 1024px){
  .main-nav.open{
    display:flex;
    flex-direction:column;
    position:absolute;
    top:100%; left:0; right:0;
    background:var(--white);
    padding:20px 24px;
    gap:16px;
    box-shadow:0 20px 30px -20px rgba(0,0,0,.25);
    border-top:1px solid rgba(31,46,39,.08);
  }
}

/* =============================================
   Responsive — Mobile (shared)
   ============================================= */
@media (max-width: 640px){
  .section{ padding:56px 0; }
  .card-grid.three, .card-grid.two{ grid-template-columns:1fr; }
  .stat-grid{ grid-template-columns:1fr 1fr; }
  .step-grid{ grid-template-columns:1fr 1fr; }
  .footer-grid{ grid-template-columns:1fr; text-align:center; }
  .footer-brand p{ margin-left:auto; margin-right:auto; }
  .social-row{ justify-content:center; }
  .stat-num, .stat-plus{ font-size:1.7rem; }
  .cta-banner{ padding:36px 24px; }
}