/* =========================================================
   SOLLAPHYSIO — Design system
   Palette, type and layout tokens derived from the brand brief.
   Written with CSS logical properties so the same stylesheet
   mirrors correctly for the Arabic (RTL) version.
   ========================================================= */

:root{
  --navy:   #1F2E3D;
  --ivory:  #F7F5F0;
  --text:   #2D3338;
  --slate:  #40505E;
  --line:   #A6B2BC;
  --white:  #FFFFFF;

  --font-display: 'Manrope', 'Noto Sans Arabic', sans-serif;
  --font-body:    'Inter', 'Noto Sans Arabic', sans-serif;

  --maxw: 1120px;
  --gap-xs: .5rem;
  --gap-s: 1rem;
  --gap-m: 2rem;
  --gap-l: 4rem;
  --gap-xl: 7rem;

  --radius: 2px;
}

html[lang="ar"]{
  --font-display: 'Noto Sans Arabic', sans-serif;
  --font-body: 'Noto Sans Arabic', sans-serif;
}

*{box-sizing:border-box;}
html{scroll-behavior:smooth;}
@media (prefers-reduced-motion: reduce){
  html{scroll-behavior:auto;}
  *{animation-duration:.01ms !important; animation-iteration-count:1 !important; transition-duration:.01ms !important;}
}

body{
  margin:0;
  background:var(--ivory);
  color:var(--text);
  font-family:var(--font-body);
  font-size:16px;
  line-height:1.65;
  -webkit-font-smoothing:antialiased;
}

img{max-width:100%; display:block;}
a{color:inherit;}

h1,h2,h3,h4{
  font-family:var(--font-display);
  color:var(--navy);
  line-height:1.2;
  margin:0 0 .6em 0;
  font-weight:600;
}
h1{font-size:clamp(2.1rem, 4.4vw, 3.6rem); font-weight:500; letter-spacing:-0.01em;}
h2{font-size:clamp(1.5rem, 2.6vw, 2.2rem);}
h3{font-size:1.15rem;}
p{margin:0 0 1.1em 0;}
.lede{font-size:1.15rem; color:var(--slate); max-width:44em;}

.container{
  max-width:var(--maxw);
  margin-inline:auto;
  padding-inline: 1.5rem;
}

.eyebrow{
  display:inline-block;
  font-family:var(--font-body);
  font-size:.78rem;
  letter-spacing:.14em;
  text-transform:uppercase;
  color:var(--slate);
  margin-bottom:1em;
}

.section{padding-block: var(--gap-xl);}
.section--white{background:var(--white);}
.section--navy{background:var(--navy); color:var(--ivory);}
.section--navy h2, .section--navy h3{color:var(--white);}
.section--tight{padding-block: var(--gap-l);}

/* Hairline divider */
.rule{
  border:0; border-block-start:1px solid var(--line);
  margin: var(--gap-m) 0;
}

/* Signature: the horizon line, drawn once on load */
.horizon{
  width:100%;
  height:1px;
  background:var(--navy);
  transform-origin: left center;
  animation: draw-horizon 1.4s cubic-bezier(.2,.7,.2,1) both;
  animation-delay:.15s;
  margin-block: 2.2rem 0;
}
html[dir="rtl"] .horizon{transform-origin: right center;}
@keyframes draw-horizon{ from{transform:scaleX(0);} to{transform:scaleX(1);} }

/* ---------- Header ---------- */
.site-header{
  position:sticky; top:0; z-index:40;
  background: var(--ivory);
  border-block-end:1px solid var(--line);
}
.site-header .container{
  display:flex; align-items:center; justify-content:space-between;
  padding-block: .6rem;
  gap: 1.4rem;
  max-width: 1320px;
}
.wordmark{
  display:flex;
  align-items:center;
  gap:.9rem;
  text-decoration:none;
  white-space:nowrap;
  flex-shrink:0;
}
.logo-img{
  height:172px;
  width:auto;
  display:block;
}
.wordmark-sub{
  font-family:var(--font-body);
  font-weight:500;
  font-size:.72rem;
  letter-spacing:.1em;
  text-transform:uppercase;
  color:var(--slate);
  border-inline-start:1px solid var(--line);
  padding-inline-start:.7rem;
}
@media (max-width:480px){
  .wordmark-sub{display:none;}
  .logo-img{height:104px;}
}

nav.main-nav{display:flex; align-items:center; gap: 1.3rem; flex-wrap:wrap;}
nav.main-nav ul{list-style:none; display:flex; gap:1.15rem; margin:0; padding:0;}
nav.main-nav a{
  text-decoration:none; font-size:.87rem; color:var(--text);
  padding-block:.2rem; border-block-end:1px solid transparent;
  white-space:nowrap;
}
nav.main-nav a:hover, nav.main-nav a[aria-current="page"]{
  color:var(--navy); border-block-end-color:var(--navy);
}

.lang-switch{
  display:flex; gap:.5rem; font-size:.82rem; align-items:center;
  margin-inline-start:auto;
  padding-inline-start:1.4rem;
  border-inline-start:1px solid var(--line);
}
.lang-switch a{
  text-decoration:none; padding:.2rem .45rem; color:var(--slate); border-radius:var(--radius);
}
.lang-switch a[aria-current="true"]{color:var(--navy); font-weight:600; background:var(--white); border:1px solid var(--line);}
.lang-sep{color:var(--line);}

.nav-toggle{display:none; background:none; border:1px solid var(--line); border-radius:var(--radius); padding:.4rem .6rem; font-size:.85rem;}

@media (max-width: 1080px){
  nav.main-nav{
    display:none;
    position:absolute; inset-inline:0; top:100%;
    background:var(--ivory); border-block-end:1px solid var(--line);
    flex-direction:column; align-items:flex-start; padding: 1rem 1.5rem 1.6rem;
  }
  nav.main-nav.open{display:flex;}
  nav.main-nav ul{flex-direction:column; gap:.9rem;}
  .lang-switch{margin-inline-start:0; border-inline-start:0; padding-inline-start:0;}
  .nav-toggle{display:inline-block;}
}

/* ---------- Buttons ---------- */
.btn{
  display:inline-block;
  font-family:var(--font-body);
  font-size:.92rem;
  font-weight:600;
  text-decoration:none;
  padding:.85rem 1.5rem;
  border-radius:var(--radius);
  border:1px solid var(--navy);
  transition: background .2s ease, color .2s ease;
}
.btn--primary{background:var(--navy); color:var(--white);}
.btn--primary:hover{background:#16212c;}
.btn--ghost{background:transparent; color:var(--navy);}
.btn--ghost:hover{background:var(--navy); color:var(--white);}
.section--navy .btn--ghost{border-color:var(--ivory); color:var(--ivory);}
.section--navy .btn--ghost:hover{background:var(--ivory); color:var(--navy);}
.cta-row{display:flex; gap:1rem; flex-wrap:wrap; margin-top:1.8rem;}

/* ---------- Hero ---------- */
.hero{padding-block: 5.5rem 4rem; position:relative; overflow:hidden;}
.hero .container{max-width:820px; position:relative; z-index:1;}
.hero-watermark{
  position:absolute;
  top:50%; left:50%;
  transform:translate(-50%,-50%);
  width:820px; max-width:120%;
  opacity:.16;
  pointer-events:none;
  z-index:0;
}
.hero-brand{
  font-family:var(--font-display);
  font-weight:700;
  font-size:1.15rem;
  letter-spacing:.18em;
  color:var(--navy);
  margin:.9rem 0 .6rem;
}

/* ---------- Grids / cards ---------- */
.grid{
  display:grid; gap: var(--gap-m);
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
}
.card{
  background:var(--white);
  border: 1.5px solid var(--navy);
  padding: 1.8rem 1.6rem;
  border-radius: var(--radius);
}
.card h3{margin-bottom:.5em;}
.card p{color:var(--slate); font-size:.96rem; margin-bottom:0;}

/* Interactive cards: title by default, description revealed on hover */
.icon-card{
  position:relative;
  overflow:hidden;
  text-align:center;
  padding: 2.4rem 1.6rem;
  min-height:180px;
  display:flex; flex-direction:column; align-items:center; justify-content:center;
}
.icon-card h3{
  margin:0; font-size:1rem;
  font-weight:400;
  line-height:1.6;
  text-transform:uppercase;
  letter-spacing:.07em;
  transition:opacity .28s ease, transform .28s ease;
}
.icon-card .card-desc{
  position:absolute; inset:0;
  display:flex; align-items:center; justify-content:center;
  padding:1.7rem;
  background:var(--navy); color:var(--ivory); font-size:.92rem; line-height:1.5;
  opacity:0; transform:translateY(10px);
  transition:opacity .28s ease, transform .28s ease;
  pointer-events:none;
}
.icon-card:hover h3{ opacity:0; transform:translateY(-6px); }
.icon-card:hover .card-desc{ opacity:1; transform:translateY(0); }
@media (hover:none){
  /* touch devices: keep description always visible, skip the hover trick */
  .icon-card .card-desc{ position:static; opacity:1; transform:none; background:none; color:var(--slate); padding-block-start:1rem; }
}

.two-col{
  display:grid; gap: var(--gap-l);
  grid-template-columns: 1.1fr .9fr;
  align-items:start;
}
@media (max-width: 780px){ .two-col{grid-template-columns:1fr;} }

.photo-frame{
  aspect-ratio: 4/5;
  background: repeating-linear-gradient(135deg, #ECE8DE, #ECE8DE 12px, #F3F0E8 12px, #F3F0E8 24px);
  border:1px solid var(--line);
  display:flex; align-items:center; justify-content:center;
  color:var(--slate); font-size:.82rem; text-align:center; padding:1rem;
  overflow:hidden;
}
.photo-frame--wide{aspect-ratio: 16/10;}
.photo-frame img{width:100%; height:100%; object-fit:cover;}

.list-clean{list-style:none; margin:0; padding:0;}
.list-clean li{
  padding-block:.7rem;
  border-block-end:1px solid var(--line);
  color:var(--slate);
}
.list-clean li:first-child{border-block-start:1px solid var(--line);}
.list-clean strong{color:var(--text); font-weight:600;}

.tag-row{display:flex; flex-wrap:wrap; gap:.5rem; margin-block:1rem 0;}
.tag{
  border:1px solid var(--line); border-radius:999px; padding:.3rem .85rem;
  font-size:.8rem; color:var(--slate);
}

/* ================= Clinical situations carousel ================= */
.clinical-carousel{ position:relative; margin-top:2.4rem; }
.clinical-carousel:focus-visible{ outline:2px solid var(--navy); outline-offset:6px; }

.carousel-viewport{ overflow:hidden; }
.carousel-track{
  display:flex;
  transition: transform .55s cubic-bezier(.4,0,.2,1);
}
@media (prefers-reduced-motion: reduce){
  .carousel-track{ transition:none; }
}
.carousel-slide{
  flex:0 0 auto;
  box-sizing:border-box;
  width:100%;
  margin-inline-end:1.2rem;
}
@media (min-width:700px){
  .carousel-slide{ width:86%; margin-inline-end:1.4rem; }
}
@media (min-width:1000px){
  .carousel-slide{ width:66%; margin-inline-end:2rem; }
}

.clinical-card{
  height:100%;
  position:relative;
  overflow:hidden;
  background:var(--white);
  border:1px solid var(--navy);
  border-radius:12px;
  box-shadow:0 4px 22px rgba(31,46,61,.05);
}
.clinical-card-media{ position:absolute; inset:0; z-index:0; }
.clinical-card-media img{ width:100%; height:100%; object-fit:cover; display:block; opacity:.3; }
.clinical-card-body{
  position:relative; z-index:1;
  height:100%;
  padding:2.2rem 2.1rem;
  display:flex;
  flex-direction:column;
  font-family:var(--font-body);
}
.clinical-card-body h3{
  font-family:var(--font-display);
  font-size:1.28rem; line-height:1.3; margin-bottom:1.2rem; color:var(--navy);
}
.clinical-list{
  list-style:none; margin:0; padding:0;
  display:grid; gap:.7rem;
  font-family:var(--font-body);
  font-size:.94rem; color:var(--slate); line-height:1.6;
}
.clinical-list li{ position:relative; padding-inline-start:1.15rem; }
.clinical-list li::before{
  content:""; position:absolute; inset-inline-start:0; top:.65em;
  width:7px; height:1px; background:var(--navy);
}
.clinical-num{
  align-self:flex-end;
  margin-top:1.4rem;
  font-family:var(--font-body); font-size:.74rem; letter-spacing:.1em;
  color:var(--slate);
}

.carousel-controls{
  display:flex; align-items:center; justify-content:center; gap:1.3rem;
  margin-top:1.7rem;
}
.carousel-arrow{
  width:38px; height:38px; border-radius:50%;
  border:1px solid var(--navy); background:var(--white); color:var(--navy);
  display:flex; align-items:center; justify-content:center;
  cursor:pointer; font-size:1rem; line-height:1;
  transition:background .2s ease, color .2s ease;
}
.carousel-arrow:hover{ background:var(--navy); color:var(--white); }
.carousel-dots{ display:flex; gap:.5rem; }
.carousel-dot{
  width:8px; height:8px; border-radius:50%; padding:0;
  border:1px solid var(--navy); background:transparent; cursor:pointer;
}
.carousel-dot[aria-selected="true"]{ background:var(--navy); }

.carousel-progress{
  height:2px; max-width:220px; margin:1.1rem auto 0;
  background:var(--line); overflow:hidden; border-radius:2px;
}
.carousel-progress-bar{ height:100%; width:0%; background:var(--navy); }
.carousel-progress-bar.running{
  animation: clinicalCarouselProgress var(--autoplay-duration, 5500ms) linear forwards;
}
@keyframes clinicalCarouselProgress{ from{ width:0%; } to{ width:100%; } }
@media (prefers-reduced-motion: reduce){
  .carousel-progress{ display:none; }
}

.placeholder{
  color:#9a5b2a; background:#FBEFE2; border:1px dashed #D9A876;
  padding:.15em .5em; border-radius:3px; font-size:.88em;
}

.note-box{
  border:1px solid var(--line); background:var(--white);
  padding:1.2rem 1.4rem; border-radius:var(--radius); font-size:.9rem; color:var(--slate);
}

/* ---------- Form ---------- */
form.contact-form{display:grid; gap:1.1rem; max-width:640px;}
.form-row{display:grid; gap:1.1rem; grid-template-columns:1fr 1fr;}
@media (max-width:600px){.form-row{grid-template-columns:1fr;}}
label{display:block; font-size:.85rem; color:var(--slate); margin-bottom:.35rem;}
input, select, textarea{
  width:100%; font-family:var(--font-body); font-size:.96rem; color:var(--text);
  border:1px solid var(--line); border-radius:var(--radius); padding:.7rem .8rem; background:var(--white);
}
input:focus, select:focus, textarea:focus{outline:2px solid var(--navy); outline-offset:1px;}
textarea{min-height:120px; resize:vertical;}

/* ---------- Footer ---------- */
.site-footer{background:var(--navy); color:#D8DEE4; padding-block: var(--gap-l) var(--gap-m);}
.site-footer a{color:#D8DEE4; text-decoration:none;}
.site-footer a:hover{color:var(--white);}
.footer-grid{
  display:grid; gap: var(--gap-l);
  grid-template-columns: 1.3fr 1fr 1fr;
  padding-block-end: var(--gap-m);
  border-block-end:1px solid rgba(255,255,255,.15);
}
@media (max-width:780px){.footer-grid{grid-template-columns:1fr;}}
.footer-grid h4{color:var(--white); font-size:.85rem; letter-spacing:.06em; text-transform:uppercase; margin-bottom:1rem;}
.footer-grid ul{list-style:none; margin:0; padding:0; display:grid; gap:.6rem; font-size:.9rem;}
.footer-bottom{
  display:flex; justify-content:space-between; flex-wrap:wrap; gap:1rem;
  padding-block-start: var(--gap-m); font-size:.8rem; color:#AAB4BC;
}

/* Keyboard focus visibility */
a:focus-visible, button:focus-visible{outline:2px solid var(--navy); outline-offset:2px;}

/* WhatsApp floating action button (homepage only) */
.whatsapp-fab{
  position:fixed;
  inset-block-end:1.6rem;
  inset-inline-end:1.6rem;
  width:56px; height:56px;
  border-radius:50%;
  background:#25D366;
  display:flex; align-items:center; justify-content:center;
  box-shadow:0 6px 18px rgba(0,0,0,.18);
  z-index:50;
  text-decoration:none;
  transition:transform .2s ease, box-shadow .2s ease;
}
.whatsapp-fab:hover{ transform:scale(1.06); box-shadow:0 8px 22px rgba(0,0,0,.22); }
.whatsapp-fab svg{ width:28px; height:28px; }
@media (max-width:480px){
  .whatsapp-fab{ width:50px; height:50px; inset-block-end:1.1rem; inset-inline-end:1.1rem; }
  .whatsapp-fab svg{ width:25px; height:25px; }
}