/* =========================================================
   MBARARA PAPER PLANT — shared stylesheet
   Brand colours: blue (#172B8F) and light green, both pulled
   from the company logo. Keep both if you keep this brand.
   ========================================================= */

:root{
  --blue:        #172B8F;
  --blue-deep:   #0F1E63;
  --blue-mid:    #22399E;
  --green:       #7CB342;
  --green-light: #AED581;
  --green-deep:  #4C7A2A;
  --paper:       #F3EFE3;
  --paper-warm:  #EAE1C6;
  --ink:         #1A1B1F;
  --slate:       #4B5568;
  --line:        rgba(23,43,143,0.14);
  --line-on-dark:rgba(255,255,255,0.18);
  --white:       #ffffff;

  --max: 1180px;
  --gutter: clamp(1.25rem, 4vw, 3rem);

  --fs-h1: clamp(2.1rem, 1.5rem + 2.8vw, 3.4rem);
  --fs-h2: clamp(1.6rem, 1.3rem + 1.3vw, 2.2rem);
  --fs-h3: 1.2rem;
  --fs-lead: clamp(1.05rem, 1rem + 0.3vw, 1.15rem);

  --sp-1: .5rem;
  --sp-2: 1rem;
  --sp-3: 1.75rem;
  --sp-4: clamp(2.25rem, 1.8rem + 2vw, 3.25rem);
  --sp-5: clamp(3.5rem, 2.8rem + 3.5vw, 6rem);

  --dur: .45s;
  --ease: cubic-bezier(.4,0,.2,1);
}

@media (prefers-reduced-motion: reduce){
  *{ animation-duration:.001ms !important; animation-iteration-count:1 !important; transition-duration:.001ms !important; scroll-behavior:auto !important; }
}

*,*::before,*::after{ box-sizing:border-box; }
html{ scroll-behavior:smooth; }
body{
  margin:0;
  background:var(--paper);
  color:var(--ink);
  font-family:'IBM Plex Sans', system-ui, sans-serif;
  line-height:1.65;
  -webkit-font-smoothing:antialiased;
}
img{ display:block; max-width:100%; }
a{ color:inherit; }
h1,h2,h3,h4{
  font-family:'Sora', system-ui, sans-serif;
  font-weight:600;
  line-height:1.12;
  letter-spacing:-0.01em;
  margin:0 0 var(--sp-2);
  color:var(--blue-deep);
}
h1{ font-size:var(--fs-h1); }
h2{ font-size:var(--fs-h2); }
h3{ font-size:var(--fs-h3); }
p{ margin:0 0 var(--sp-2); color:var(--slate); }
ul{ margin:0; padding:0; list-style:none; }
button{ font-family:inherit; }

.measure{ max-width:56ch; }
.measure-wide{ max-width:68ch; }

:focus-visible{ outline:2px solid var(--green-deep); outline-offset:3px; border-radius:2px; }

.wrap{ max-width:var(--max); margin-inline:auto; padding-inline:var(--gutter); }
section{ padding-block:var(--sp-5); }

.band-blue{ background:var(--blue-deep); color:var(--white); }
.band-blue h1,.band-blue h2,.band-blue h3{ color:var(--white); }
.band-blue p{ color:rgba(255,255,255,0.78); }
.band-green{ background:var(--green-deep); color:var(--white); }
.band-green h1,.band-green h2,.band-green h3{ color:var(--white); }
.band-green p{ color:rgba(255,255,255,0.85); }
.band-paper-warm{ background:var(--paper-warm); }
.band-white{ background:var(--white); }

.eyebrow{
  display:block; font-size:.85rem; font-weight:600;
  color:var(--green-deep); margin-bottom:var(--sp-1);
}
.band-blue .eyebrow, .band-green .eyebrow{ color:var(--green-light); }

.skip-link{
  position:absolute; left:-999px; top:auto;
  background:var(--green); color:var(--blue-deep);
  padding:.75rem 1.25rem; z-index:200; font-weight:600; text-decoration:none;
}
.skip-link:focus{ left:0; top:0; }

/* ---------- Buttons ---------- */
.btn{
  display:inline-flex; align-items:center; gap:.5rem;
  padding:.85rem 1.5rem; border-radius:3px; font-weight:600; font-size:.97rem;
  text-decoration:none; border:1.5px solid transparent; cursor:pointer;
  transition:background var(--dur) var(--ease), color var(--dur) var(--ease), border-color var(--dur) var(--ease);
}
.btn-green{ background:var(--green); color:var(--blue-deep); }
.btn-green:hover{ background:var(--green-light); }
.btn-outline{ background:transparent; color:var(--white); border-color:var(--line-on-dark); }
.btn-outline:hover{ border-color:var(--white); }
.btn-blue{ background:var(--blue); color:var(--white); }
.btn-blue:hover{ background:var(--blue-mid); }
.btn-whatsapp{ background:#25D366; color:#0b3d1f; }
.btn-whatsapp:hover{ background:#3fe07b; }

/* ---------- Header / Nav ---------- */
header.site{
  position:sticky; top:0; z-index:100; background:var(--blue-deep);
  box-shadow:0 1px 0 var(--line-on-dark);
}
.nav-inner{ display:flex; align-items:center; justify-content:space-between; padding-block:1rem; }
.brand{ display:flex; align-items:center; gap:.65rem; text-decoration:none; color:var(--white); font-family:'Sora',sans-serif; font-weight:600; font-size:1.05rem; white-space:nowrap; }
.brand img{ height:32px; width:auto; }
.brand .brand-fallback{ display:flex; align-items:center; justify-content:center; width:32px; height:32px; background:var(--green); color:var(--blue-deep); border-radius:6px; font-weight:700; font-size:.85rem; font-family:'Sora',sans-serif; }

nav.primary{ display:flex; align-items:center; gap:var(--sp-3); }
nav.primary ul{ display:flex; gap:1.5rem; align-items:center; }
nav.primary a{
  text-decoration:none; font-size:.94rem; font-weight:500; color:rgba(255,255,255,0.82);
  padding:.3rem 0; border-bottom:1.5px solid transparent;
  transition:opacity var(--dur) var(--ease), border-color var(--dur) var(--ease);
}
nav.primary a:hover, nav.primary a.active{ color:var(--white); border-color:var(--green); }

.nav-toggle{ display:none; background:none; border:1.5px solid var(--line-on-dark); border-radius:3px; width:42px; height:38px; align-items:center; justify-content:center; color:var(--white); }
.nav-toggle svg{ pointer-events:none; }

@media (max-width:880px){
  nav.primary ul{
    position:fixed; inset:64px 0 0 0; height:calc(100vh - 64px); overflow-y:auto;
    background:var(--blue-deep); flex-direction:column; align-items:stretch; gap:0; padding:var(--sp-2) var(--gutter);
    transform:translateX(100%); transition:transform var(--dur) var(--ease);
  }
  nav.primary ul.open{ transform:translateX(0); }
  nav.primary ul li{ border-bottom:1px solid var(--line-on-dark); }
  nav.primary ul a{ display:block; padding:1.05rem 0; font-size:1.05rem; }
  .cta-desktop{ display:none; }
  .nav-toggle{ display:flex; }
}

/* ---------- Hero (home, large) ---------- */
.hero-home{ background:var(--blue-deep); color:var(--white); overflow:hidden; padding-block: clamp(3rem,2.4rem+3vw,5rem) var(--sp-5); }
.hero-home .wrap{ display:grid; grid-template-columns:1.1fr .9fr; gap:clamp(2rem,4vw,4rem); align-items:center; }
.hero-home h1{ color:var(--white); }
.hero-home .lead{ font-size:var(--fs-lead); color:rgba(255,255,255,.82); margin-bottom:var(--sp-3); }
.hero-home .cta-row{ display:flex; gap:1rem; flex-wrap:wrap; }
.hero-art{ width:100%; }
@media (max-width:900px){
  .hero-home .wrap{ grid-template-columns:1fr; }
  .hero-art{ order:-1; max-width:340px; margin-inline:auto; }
}
.fiber{ stroke-dasharray:520; stroke-dashoffset:520; animation:draw 1.6s var(--ease) forwards; }
.fiber.s2{ animation-delay:.12s; } .fiber.s3{ animation-delay:.24s; }
.fiber.s4{ animation-delay:.36s; } .fiber.s5{ animation-delay:.48s; }
.sheet{ opacity:0; animation:fadein 1s var(--ease) forwards; animation-delay:.85s; }
@keyframes draw{ to{ stroke-dashoffset:0; } }
@keyframes fadein{ to{ opacity:1; } }
@media (prefers-reduced-motion:reduce){ .fiber{ stroke-dashoffset:0; } .sheet{ opacity:1; } }

/* ---------- Page hero (inner pages, small) ---------- */
.page-hero{ background:var(--blue-deep); color:var(--white); padding-block:var(--sp-4); }
.page-hero h1{ color:var(--white); margin-bottom:.4rem; }
.page-hero p{ color:rgba(255,255,255,.78); max-width:60ch; }
.breadcrumb{ font-size:.85rem; color:rgba(255,255,255,.6); margin-bottom:var(--sp-1); }
.breadcrumb a{ text-decoration:none; color:rgba(255,255,255,.8); }
.breadcrumb a:hover{ color:var(--green-light); }

/* ---------- Media frame (for real site photos) ---------- */
.media-frame{ position:relative; overflow:hidden; background:var(--paper-warm); border:1px solid var(--line); }
.media-frame img{ width:100%; height:100%; object-fit:cover; }
.media-frame.r-16-10{ aspect-ratio:16/10; }
.media-frame.r-4-3{ aspect-ratio:4/3; }
.media-frame.r-1-1{ aspect-ratio:1/1; }
.media-caption{ font-size:.85rem; color:var(--slate); margin-top:.5rem; }

/* ---------- Generic grid / cards ---------- */
.grid-2{ display:grid; grid-template-columns:1fr 1fr; gap:clamp(2rem,4vw,3.5rem); align-items:center; }
.grid-3{ display:grid; grid-template-columns:repeat(3,1fr); gap:var(--sp-3); }
.grid-4{ display:grid; grid-template-columns:repeat(4,1fr); gap:var(--sp-3); }
@media (max-width:900px){ .grid-2{ grid-template-columns:1fr; } .grid-3{ grid-template-columns:1fr 1fr; } .grid-4{ grid-template-columns:1fr 1fr; } }
@media (max-width:560px){ .grid-3{ grid-template-columns:1fr; } .grid-4{ grid-template-columns:1fr; } }

.card{ background:var(--white); border:1px solid var(--line); padding:var(--sp-3); }
.card .icon-wrap{ width:56px; height:56px; border-radius:50%; background:var(--paper-warm); display:flex; align-items:center; justify-content:center; margin-bottom:var(--sp-2); }
.card .icon-wrap svg{ width:26px; height:26px; color:var(--blue); }
.card .step-num{ font-family:'Sora',sans-serif; font-size:.85rem; font-weight:600; color:var(--green-deep); display:block; margin-bottom:.35rem; }

.section-head{ max-width:44rem; margin-bottom:var(--sp-4); }

/* ---------- Colour swatch (paper stock) ---------- */
.swatch-grid{ display:grid; grid-template-columns:1fr 1fr; gap:var(--sp-3); margin-top:var(--sp-4); }
.swatch-card{ background:var(--white); border:1px solid var(--line); overflow:hidden; }
.swatch-card .media-frame{ border:none; }
.swatch-card .swatch-label{ padding:var(--sp-2) var(--sp-3); display:flex; align-items:center; gap:.6rem; }
.swatch-dot{ width:16px; height:16px; border-radius:50%; flex-shrink:0; border:1px solid rgba(0,0,0,0.15); }
@media (max-width:760px){ .swatch-grid{ grid-template-columns:1fr; } }

/* ---------- Gallery + lightbox ---------- */
.gallery-grid{ display:grid; grid-template-columns:repeat(3,1fr); gap:var(--sp-2); }
.gallery-item{ cursor:pointer; border:none; padding:0; background:none; text-align:left; width:100%; }
.gallery-item .media-frame{ transition:opacity var(--dur) var(--ease); }
.gallery-item:hover .media-frame{ opacity:.85; }
@media (max-width:760px){ .gallery-grid{ grid-template-columns:1fr 1fr; } }
@media (max-width:480px){ .gallery-grid{ grid-template-columns:1fr; } }

.lightbox{
  position:fixed; inset:0; background:rgba(15,30,99,0.92); z-index:300;
  display:none; align-items:center; justify-content:center; padding:var(--gutter);
}
.lightbox.open{ display:flex; }
.lightbox figure{ max-width:min(90vw,900px); margin:0; }
.lightbox img{ width:100%; max-height:75vh; object-fit:contain; }
.lightbox figcaption{ color:var(--white); text-align:center; margin-top:.75rem; font-size:.95rem; }
.lightbox-close{ position:absolute; top:1.25rem; right:1.25rem; background:none; border:1.5px solid var(--line-on-dark); color:var(--white); width:42px; height:42px; border-radius:50%; display:flex; align-items:center; justify-content:center; }

/* ---------- Process (list with connecting rule) ---------- */
.process-list{ counter-reset:step; margin-top:var(--sp-4); }
.process-row{ display:grid; grid-template-columns:80px 1fr; gap:var(--sp-3); padding-block:var(--sp-3); border-top:1px solid var(--line); }
.process-row:last-child{ border-bottom:1px solid var(--line); }
.process-row .num{ font-family:'Sora',sans-serif; font-size:2rem; font-weight:700; color:var(--green-deep); line-height:1; }
@media (max-width:640px){ .process-row{ grid-template-columns:1fr; } .process-row .num{ font-size:1.4rem; } }

/* ---------- Sustainability pillars ---------- */
.pillars{ display:grid; grid-template-columns:repeat(4,1fr); gap:0; margin-top:var(--sp-4); }
.pillar{ padding:var(--sp-3) var(--sp-2) var(--sp-3) 0; border-right:1px solid var(--line-on-dark); }
.pillar:last-child{ border-right:none; }
.pillar .num{ font-family:'Sora',sans-serif; color:var(--green-light); font-weight:700; margin-bottom:.4rem; display:block; }
@media (max-width:900px){ .pillars{ grid-template-columns:1fr 1fr; } .pillar{ border-right:none; border-bottom:1px solid var(--line-on-dark); padding:var(--sp-3) 0; } }
@media (max-width:560px){ .pillars{ grid-template-columns:1fr; } }

/* ---------- Forms ---------- */
.field{ margin-bottom:var(--sp-2); }
.field label{ display:block; font-size:.88rem; margin-bottom:.35rem; color:var(--slate); font-weight:500; }
.field input, .field select, .field textarea{
  width:100%; padding:.75rem .85rem; background:var(--white); border:1.5px solid var(--line);
  color:var(--ink); font-family:inherit; font-size:.97rem; border-radius:3px;
}
.field input:focus, .field select:focus, .field textarea:focus{ outline:none; border-color:var(--blue); }
.field textarea{ resize:vertical; min-height:110px; }
.form-status{ font-size:.9rem; margin-top:.75rem; min-height:1.2em; color:var(--slate); }

.info-list li{ display:flex; gap:.9rem; padding-block:var(--sp-2); border-top:1px solid var(--line); }
.info-list{ border-bottom:1px solid var(--line); margin-bottom:var(--sp-3); }
.info-list svg{ width:22px; height:22px; color:var(--blue); flex-shrink:0; margin-top:.1rem; }
.info-list strong{ display:block; font-size:.95rem; color:var(--ink); }
.info-list span{ font-size:.9rem; color:var(--slate); }
.info-list a{ color:var(--blue); text-decoration:none; font-weight:600; }
.info-list a:hover{ text-decoration:underline; }
.map-embed{ border:1px solid var(--line); width:100%; height:220px; filter:grayscale(0.15) contrast(1.03); }

/* ---------- CTA band ---------- */
.cta-band{ background:var(--blue); color:var(--white); text-align:left; }
.cta-band .wrap{ display:flex; align-items:center; justify-content:space-between; gap:var(--sp-3); flex-wrap:wrap; }
.cta-band h2{ color:var(--white); margin-bottom:.25rem; }
.cta-band p{ color:rgba(255,255,255,.82); margin:0; }
.cta-band .cta-buttons{ display:flex; gap:.75rem; flex-wrap:wrap; }

/* ---------- Footer ---------- */
footer.site{ background:var(--blue-deep); color:rgba(255,255,255,.75); padding-block:var(--sp-4) var(--sp-3); }
.footer-grid{ display:grid; grid-template-columns:1.3fr 1fr 1fr; gap:var(--sp-3); padding-bottom:var(--sp-3); border-bottom:1px solid var(--line-on-dark); }
.footer-grid h4{ color:var(--white); font-size:.92rem; margin-bottom:var(--sp-2); font-family:'IBM Plex Sans'; font-weight:600; }
.footer-grid ul li{ margin-bottom:.55rem; }
.footer-grid a{ text-decoration:none; color:rgba(255,255,255,.75); font-size:.92rem; }
.footer-grid a:hover{ color:var(--green-light); }
.footer-bottom{ display:flex; justify-content:space-between; flex-wrap:wrap; gap:1rem; padding-top:var(--sp-3); font-size:.83rem; }
@media (max-width:760px){ .footer-grid{ grid-template-columns:1fr 1fr; } }

/* ---------- Floating WhatsApp button ---------- */
.whatsapp-float{
  position:fixed; bottom:1.25rem; right:1.25rem; z-index:150;
  width:56px; height:56px; border-radius:50%; background:#25D366;
  display:flex; align-items:center; justify-content:center;
  box-shadow:0 4px 14px rgba(15,30,99,0.35);
  transition:transform var(--dur) var(--ease);
}
.whatsapp-float:hover{ transform:scale(1.06); }
.whatsapp-float svg{ width:28px; height:28px; }
@media (max-width:640px){
  .whatsapp-float{ width:50px; height:50px; bottom:1rem; right:1rem; }
  .whatsapp-float svg{ width:24px; height:24px; }
}