/*
Theme Name: RTech
Theme URI: https://rtech.co.za
Author: RTech
Author URI: https://rtech.co.za
Description: Custom precision-engineering theme for RTech — 3D printing, 3D scanning, reverse engineering, and outsourced laser cutting & CNC machining.
Version: 1.1.0
Requires at least: 6.0
Tested up to: 6.6
Requires PHP: 7.4
License: GNU General Public License v2 or later
License URI: https://www.gnu.org/licenses/gpl-2.0.html
Text Domain: rtech
*/

/* ============================================================
   RTECH — Precision Engineering
   Design tokens: Ink / Paper / Navy / Ocean / Steel
   ============================================================ */

:root{
  --ink: #0B0D10;
  --ink-2: #14181D;
  --paper: #F7F8FA;
  --paper-2: #ECEEF1;
  --navy: #0B2545;
  --navy-2: #123061;
  --ocean: #0091D5;
  --ocean-light: #4DB8E8;
  --steel: #8B95A1;
  --steel-light: #C9CFD6;
  --line: rgba(139,149,161,0.22);
  --line-dark: rgba(247,248,250,0.14);

  --font-display: 'Space Grotesk', 'Helvetica Neue', Arial, sans-serif;
  --font-body: 'Inter', 'Helvetica Neue', Arial, sans-serif;
  --font-mono: 'JetBrains Mono', 'Courier New', monospace;

  --container: 1220px;
  --gutter: clamp(20px, 5vw, 64px);
  --radius: 3px;
  --ease: cubic-bezier(.22,.68,.32,1);
}

*,*::before,*::after{ box-sizing: border-box; }
html{ scroll-behavior: smooth; }
@media (prefers-reduced-motion: reduce){
  html{ scroll-behavior: auto; }
  *,*::before,*::after{ animation-duration: 0.001ms !important; animation-iteration-count: 1 !important; transition-duration: 0.001ms !important; scroll-behavior: auto !important; }
}

body{
  margin:0;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

img{ max-width:100%; display:block; }
a{ color: inherit; text-decoration: none; }
button{ font-family: inherit; cursor:pointer; }
ul{ margin:0; padding:0; list-style:none; }
h1,h2,h3,h4{ font-family: var(--font-display); margin:0; font-weight:600; letter-spacing:-0.01em; }
p{ margin:0; }

.container{
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 var(--gutter);
}

.mono{
  font-family: var(--font-mono);
  letter-spacing: 0.04em;
}

.eyebrow{
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--ocean);
  display:flex;
  align-items:center;
  gap:10px;
}
.eyebrow::before{
  content:"";
  width:16px; height:1px;
  background: var(--ocean);
  display:inline-block;
}

/* focus visibility */
a:focus-visible, button:focus-visible, input:focus-visible, textarea:focus-visible{
  outline: 2px solid var(--ocean);
  outline-offset: 3px;
}

/* ============ registration / blueprint corner marks ============ */
.reg-frame{
  position:relative;
}
.reg-frame::before, .reg-frame::after,
.reg-frame .rc-tl, .reg-frame .rc-br{
  content:"";
  position:absolute;
  width:14px; height:14px;
  pointer-events:none;
}
.reg-frame::before{
  top:0; left:0;
  border-top:1px solid var(--steel);
  border-left:1px solid var(--steel);
}
.reg-frame::after{
  bottom:0; right:0;
  border-bottom:1px solid var(--steel);
  border-right:1px solid var(--steel);
}

/* ============================================================
   NAV
   ============================================================ */
.site-header{
  position: fixed;
  top:0; left:0; right:0;
  z-index: 1000;
  padding: 22px 0;
  background: transparent;
  transition: background .4s var(--ease), padding .4s var(--ease), border-color .4s var(--ease);
  border-bottom: 1px solid transparent;
}
.site-header.is-scrolled{
  background: rgba(11,13,16,0.86);
  backdrop-filter: blur(10px);
  padding: 14px 0;
  border-bottom: 1px solid var(--line-dark);
}
.nav-row{
  display:flex;
  align-items:center;
  justify-content:space-between;
}
.brand{
  display:flex;
  flex-direction:column;
  line-height:1;
  color: var(--paper);
}
.brand .brand-mark{
  font-family: var(--font-display);
  font-weight:700;
  font-size: 20px;
  letter-spacing: 0.03em;
}
.brand .brand-mark span{ color: var(--ocean); }
.brand .brand-sub{
  font-family: var(--font-mono);
  font-size: 9px;
  letter-spacing: 0.22em;
  color: var(--steel-light);
  margin-top: 4px;
  text-transform:uppercase;
}
.nav-links{
  display:flex;
  gap: 26px;
  list-style: none;
  margin: 0;
  padding: 0;
}
.nav-links li{ list-style:none; margin:0; padding:0; }
.nav-links a{
  position:relative;
  font-size: 12.5px;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--steel-light);
  padding-bottom: 6px;
  transition: color .25s var(--ease);
  white-space: nowrap;
}
.nav-links a::after{
  content:"";
  position:absolute;
  left:0; bottom:0;
  width:0%; height:1px;
  background: var(--ocean);
  transition: width .3s var(--ease);
}
.nav-links a:hover,
.nav-links a.active{ color: var(--paper); }
.nav-links a:hover::after,
.nav-links a.active::after{ width:100%; }

.nav-cta{
  display:inline-flex;
  align-items:center;
  gap:8px;
  font-family: var(--font-mono);
  font-size:12px;
  letter-spacing:0.06em;
  color: var(--ink);
  background: var(--ocean);
  padding: 10px 18px;
  border-radius: var(--radius);
  transition: background .25s var(--ease), transform .25s var(--ease);
}
.nav-cta:hover{ background: var(--ocean-light); transform: translateY(-1px); }

.nav-toggle{
  display:none;
  background:none;
  border:1px solid var(--line-dark);
  color: var(--paper);
  width:40px; height:40px;
  border-radius: var(--radius);
  align-items:center;
  justify-content:center;
}

/* ============================================================
   BUTTONS
   ============================================================ */
.btn{
  display:inline-flex;
  align-items:center;
  gap:10px;
  padding: 14px 26px;
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.05em;
  border-radius: var(--radius);
  border: 1px solid transparent;
  transition: all .3s var(--ease);
  white-space:nowrap;
}
.btn-primary{
  background: var(--ocean);
  color: var(--ink);
}
.btn-primary:hover{ background: var(--ocean-light); transform: translateY(-2px); box-shadow: 0 10px 24px rgba(0,145,213,0.28); }
.btn-ghost{
  border-color: var(--line-dark);
  color: var(--paper);
}
.btn-ghost:hover{ border-color: var(--ocean); color: var(--ocean-light); }
.btn-ghost.on-light{ color: var(--ink); border-color: var(--line); }
.btn-ghost.on-light:hover{ border-color: var(--ocean); color: var(--navy); }
.btn-arrow{ transition: transform .3s var(--ease); }
.btn:hover .btn-arrow{ transform: translateX(4px); }

/* ============================================================
   HERO (dark)
   ============================================================ */
.hero{
  position: relative;
  min-height: 100vh;
  background: var(--ink);
  color: var(--paper);
  display:flex;
  align-items:center;
  padding-top: 120px;
  overflow:hidden;
}
.blueprint-grid{
  position:absolute; inset:0;
  background-image:
    linear-gradient(var(--line-dark) 1px, transparent 1px),
    linear-gradient(90deg, var(--line-dark) 1px, transparent 1px);
  background-size: 56px 56px;
  mask-image: radial-gradient(ellipse at 60% 40%, black 10%, transparent 72%);
  opacity: .8;
}
.hero-grid{
  position:relative;
  z-index:2;
  display:grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 40px;
  align-items:center;
  width:100%;
}
.hero-copy .eyebrow{ margin-bottom:22px; }
.hero h1{
  font-size: clamp(40px, 5.6vw, 76px);
  line-height: 1.03;
  color: var(--paper);
}
.hero h1 em{
  font-style: normal;
  color: transparent;
  -webkit-text-stroke: 1.5px var(--ocean-light);
}
.hero p.lead{
  margin-top: 26px;
  max-width: 480px;
  color: var(--steel-light);
  font-size: 17px;
}
.hero-actions{
  margin-top: 40px;
  display:flex;
  gap:16px;
  flex-wrap:wrap;
}
.hero-meta{
  margin-top: 56px;
  display:flex;
  flex-wrap: wrap;
  gap: 28px 40px;
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--steel);
}
.hero-meta b{ display:block; color: var(--paper); font-size:20px; font-family: var(--font-display); font-weight:600;}

/* Signature scan-to-solid animation */
.scan-stage{
  position:relative;
  aspect-ratio: 1/1;
  display:flex; align-items:center; justify-content:center;
}
.scan-stage svg{ width: 100%; height:100%; max-width: 460px; }
.scan-dot{ opacity:0; animation: dotIn .6s var(--ease) forwards; }
.scan-wire{
  fill:none;
  stroke: var(--ocean);
  stroke-width: 1.4;
  stroke-dasharray: 8 6;
  stroke-dashoffset: 900;
  opacity:0;
  animation: wireIn 2.2s var(--ease) forwards;
  animation-delay: .9s;
}
.scan-solid{
  fill: url(#solidGradient);
  opacity:0;
  animation: solidIn 1.4s var(--ease) forwards;
  animation-delay: 2.6s;
}
.scan-axis{ stroke: var(--line-dark); stroke-width:1; }
.scan-label{
  font-family:'JetBrains Mono', monospace;
  font-size: 9px;
  fill: var(--steel);
  opacity:0;
  animation: dotIn .6s var(--ease) forwards;
  animation-delay: 3.4s;
}
@keyframes dotIn{ to{ opacity:1; } }
@keyframes wireIn{ to{ opacity:1; stroke-dashoffset:0; } }
@keyframes solidIn{ to{ opacity:.9; } }
@media (prefers-reduced-motion: reduce){
  .scan-dot,.scan-wire,.scan-solid,.scan-label{ animation:none; opacity:1; stroke-dashoffset:0; }
}

/* ============================================================
   SECTIONS (light)
   ============================================================ */
.section{ padding: 110px 0; }
.section.tight{ padding: 70px 0; }
.section-head{
  display:flex;
  justify-content:space-between;
  align-items:flex-end;
  gap: 40px;
  margin-bottom: 60px;
  flex-wrap: wrap;
}
.section-head h2{
  font-size: clamp(28px, 3.4vw, 44px);
  max-width: 640px;
}
.section-head p{
  max-width: 380px;
  color: var(--steel);
  font-size:15px;
}
.section.on-dark{ background: var(--navy); color: var(--paper); }
.section.on-ink{ background: var(--ink); color: var(--paper); }
.section.on-dark .section-head p, .section.on-ink .section-head p{ color: var(--steel-light); }

.reveal{
  opacity:0;
  transform: translateY(28px);
  transition: opacity .8s var(--ease), transform .8s var(--ease);
}
.reveal.is-visible{ opacity:1; transform:none; }

/* ============================================================
   SERVICE CARDS
   ============================================================ */
.grid-4{ display:grid; grid-template-columns: repeat(4,1fr); gap: 1px; background: var(--line); border:1px solid var(--line); }
.grid-3{ display:grid; grid-template-columns: repeat(3,1fr); gap: 1px; background: var(--line); border:1px solid var(--line); }
.grid-2{ display:grid; grid-template-columns: repeat(2,1fr); gap: 1px; background: var(--line); border:1px solid var(--line); }

.card{
  background: var(--paper);
  padding: 40px 32px;
  transition: background .3s var(--ease), transform .3s var(--ease);
  position:relative;
}
.card:hover{ background: #fff; transform: translateY(-3px); box-shadow: 0 20px 40px rgba(11,37,69,0.08); z-index:2; }
.card .tag{
  font-family: var(--font-mono);
  font-size:11px;
  color: var(--ocean);
  letter-spacing:0.08em;
  margin-bottom: 18px;
  display:block;
}
.card h3{ font-size: 20px; margin-bottom:12px; }
.card p{ color: var(--steel); font-size: 14.5px; }
.card .num{
  position:absolute; top:24px; right:28px;
  font-family: var(--font-mono);
  font-size:11px;
  color: var(--steel-light);
}
.card-icon{
  width:44px; height:44px;
  margin-bottom: 22px;
  color: var(--navy);
}
.card-icon svg{ width:100%; height:100%; }

/* on dark variant */
.on-dark .card, .on-ink .card{ background: var(--navy-2); }
.on-dark .card:hover, .on-ink .card:hover{ background: #163a72; }
.on-dark .card p, .on-ink .card p{ color: var(--steel-light); }
.on-ink .card{ background: var(--ink-2); }
.on-ink .card:hover{ background: #1c2129; }

/* ============================================================
   MATERIALS STRIP
   ============================================================ */
.materials-strip{
  display:grid;
  grid-template-columns: repeat(4,1fr);
  border-top:1px solid var(--line-dark);
  border-bottom:1px solid var(--line-dark);
}
.material-item{
  padding: 30px 26px;
  border-right: 1px solid var(--line-dark);
}
.material-item:last-child{ border-right:none; }
.material-item .code{
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--ocean-light);
  letter-spacing:0.08em;
}
.material-item h4{
  color: var(--paper);
  font-size: 18px;
  margin-top:8px;
  font-weight:500;
}
.material-item .finish{
  margin-top: 14px;
  height: 34px;
  border-radius: 2px;
}
.finish.al{ background: linear-gradient(120deg,#b8c1c9,#8f99a3 45%,#dfe4e8); }
.finish.ss{ background: linear-gradient(120deg,#9aa5ad,#5f6b74 45%,#c7ced3); }
.finish.brs{ background: linear-gradient(120deg,#cfa15e,#a97c3a 45%,#e6c98a); }
.finish.pl{ background: linear-gradient(120deg,var(--navy),var(--ocean) 60%,var(--navy-2)); }

/* ============================================================
   PROCESS LIST (reverse engineering / project steps)
   ============================================================ */
.process-list{ border-top:1px solid var(--line); }
.process-row{
  display:grid;
  grid-template-columns: 90px 1fr 1.2fr;
  gap: 30px;
  padding: 30px 0;
  border-bottom: 1px solid var(--line);
  align-items:baseline;
}
.process-row .stage{
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--ocean);
}
.process-row h4{ font-size:19px; }
.process-row p{ color: var(--steel); font-size:14.5px; }

/* ============================================================
   CTA BAND
   ============================================================ */
.cta-band{
  background: var(--ink);
  color: var(--paper);
  padding: 90px 0;
  position: relative;
  overflow:hidden;
}
.cta-band .container{
  display:flex;
  justify-content:space-between;
  align-items:center;
  gap: 40px;
  flex-wrap:wrap;
  position:relative; z-index:2;
}
.cta-band h2{ font-size: clamp(28px,3.6vw,46px); max-width:560px; }
.cta-actions{ display:flex; gap:16px; flex-wrap:wrap; }

/* ============================================================
   FOOTER
   ============================================================ */
.site-footer{
  background: var(--ink);
  color: var(--steel-light);
  padding: 70px 0 30px;
  border-top: 1px solid var(--line-dark);
}
.footer-grid{
  display:grid;
  grid-template-columns: 1.4fr 1fr 1fr 1fr;
  gap: 40px;
  padding-bottom: 50px;
  border-bottom: 1px solid var(--line-dark);
}
.footer-grid h5{
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing:0.14em;
  text-transform:uppercase;
  color: var(--steel);
  margin-bottom: 20px;
}
.footer-grid a, .footer-grid p{ font-size: 14px; }
.footer-grid li{ margin-bottom: 12px; }
.footer-grid li a:hover{ color: var(--ocean-light); }
.footer-bottom{
  display:flex;
  justify-content:space-between;
  padding-top: 26px;
  font-family: var(--font-mono);
  font-size: 11.5px;
  color: var(--steel);
  flex-wrap:wrap;
  gap:10px;
}

/* ============================================================
   GALLERY PLACEHOLDER
   ============================================================ */
.gallery-placeholder{
  min-height: 320px;
  border: 1px dashed var(--line);
  border-radius: var(--radius);
  display:flex;
  align-items:center;
  justify-content:center;
  color: var(--steel);
  background: var(--paper-2);
}
.gallery-placeholder span{ font-family: var(--font-mono); font-size:12px; letter-spacing:0.1em; text-transform:uppercase; }
.on-dark .gallery-placeholder, .on-ink .gallery-placeholder{ background: var(--navy-2); border-color: var(--line-dark); color: var(--steel-light); }

/* ============================================================
   SOCIAL CARDS
   ============================================================ */
.social-card{ display:flex; flex-direction:column; }
.social-card .icon-badge{
  width:52px; height:52px;
  border:1px solid var(--line);
  border-radius:50%;
  display:flex; align-items:center; justify-content:center;
  color: var(--navy);
  margin-bottom:22px;
}
.social-card.is-placeholder{ opacity:.55; }
.social-card.is-placeholder .icon-badge{ color: var(--steel); }
.social-card .handle{ font-family: var(--font-mono); font-size:12.5px; color: var(--ocean); margin-top:6px; }
.social-card .handle.muted{ color: var(--steel); }

/* ============================================================
   WORDPRESS EDITOR CONTENT (Gallery page, etc.)
   ============================================================ */
.wp-gallery-content{ margin-top: 0; }
.wp-gallery-content .wp-block-gallery{ margin-bottom: 0; }
.wp-gallery-content .wp-block-image img,
.wp-gallery-content .wp-block-gallery img{
  border-radius: var(--radius);
}
.wp-gallery-content figcaption{
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--steel);
  margin-top: 8px;
}

/* ============================================================
   AUTO-SCROLLING GALLERY RIBBON
   Built from whatever's in the page's Gallery block; script.js
   duplicates the images once (for a seamless loop) and measures
   the result to set a consistent speed regardless of image count.
   ============================================================ */
.ribbon-gallery{
  position: relative;
  overflow: hidden;
  width: 100%;
  padding: 100px 0; /* headroom so hover-enlarged images (1.6x) never clip top/bottom */
  -webkit-mask-image: linear-gradient(90deg, transparent, black 6%, black 94%, transparent);
          mask-image: linear-gradient(90deg, transparent, black 6%, black 94%, transparent);
}
.ribbon-track{
  display: flex;
  align-items: center;
  width: max-content;
  gap: 20px;
  padding: 0 20px;
  opacity: 0;
  will-change: transform;
  transition: opacity .5s var(--ease);
}
.ribbon-track.is-ready{ opacity: 1; }
.ribbon-track.is-stepping{
  transition: opacity .5s var(--ease), transform .5s cubic-bezier(.22,.68,.32,1);
}
.ribbon-item{
  position: relative;
  flex: 0 0 auto;
  margin: 0;
  z-index: 1;
}
.ribbon-item:hover{ z-index: 5; }
.ribbon-item img{
  display: block;
  height: 260px;
  width: auto;
  max-width: none;
  border-radius: 12px;
  border: 1px solid rgba(201,207,214,0.12);
  box-shadow: 0 10px 30px rgba(0,0,0,0.35);
  transition: transform .5s var(--ease), box-shadow .5s var(--ease);
}
.ribbon-item:hover img{
  transform: scale(1.6);
  box-shadow: 0 26px 60px rgba(0,0,0,0.5), 0 0 0 1px rgba(0,145,213,0.2);
}
.ribbon-arrow{
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  z-index: 6;
  width: 44px;
  height: 44px;
  border-radius: 50%;
  border: 1px solid var(--line-dark);
  background: rgba(11,13,16,0.55);
  backdrop-filter: blur(6px);
  color: var(--paper);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: background .25s var(--ease), border-color .25s var(--ease), color .25s var(--ease);
}
.ribbon-arrow:hover{ background: var(--ocean); border-color: var(--ocean); color: var(--ink); }
.ribbon-arrow:active{ transform: translateY(-50%) scale(0.92); }
.ribbon-arrow-prev{ left: 16px; }
.ribbon-arrow-next{ right: 16px; }
@media (max-width: 720px){
  .ribbon-gallery{ padding: 30px 0; }
  .ribbon-item img{ height: 160px; }
  .ribbon-item:hover img{ transform: scale(1.3); }
  .ribbon-arrow{ width: 36px; height: 36px; }
  .ribbon-arrow-prev{ left: 8px; }
  .ribbon-arrow-next{ right: 8px; }
}
@media (prefers-reduced-motion: reduce){
  .ribbon-track{ transition: opacity .5s var(--ease); }
  .ribbon-track.is-stepping{ transition: opacity .5s var(--ease); }
  .ribbon-item img{ transition: box-shadow .5s var(--ease); }
  .ribbon-item:hover img{ transform: none; }
}

/* ============================================================
   AMBIENT ENGINEERING ICON FIELD
   A reusable animated backdrop of technical/engineering line-icons
   (gear, caliper, compass, bolt, etc.) that drift and rotate slowly
   behind hero and CTA content. Output via rtech_icon_field() in
   functions.php so every dark section on every page stays consistent.
   ============================================================ */
.icon-field{
  position: absolute;
  inset: 0;
  overflow: hidden;
  pointer-events: none;
  z-index: 1;
}
.icon-field-item{
  position: absolute;
  color: var(--ocean-light);
  opacity: var(--icon-opacity, 0.12);
  animation: icon-float var(--icon-duration, 32s) ease-in-out infinite;
  animation-delay: var(--icon-delay, 0s);
  will-change: transform;
}
.icon-field-item.spin{
  animation: icon-spin var(--icon-duration, 46s) linear infinite;
}
.icon-field-item svg{ width: 100%; height: 100%; display: block; }

@keyframes icon-float{
  0%, 100%{ transform: translate(0, 0) rotate(0deg); }
  50%{ transform: translate(var(--drift-x, 14px), var(--drift-y, -18px)) rotate(var(--drift-rot, 10deg)); }
}
@keyframes icon-spin{
  from{ transform: rotate(0deg); }
  to{ transform: rotate(360deg); }
}
@media (prefers-reduced-motion: reduce){
  .icon-field-item{ animation: none; }
}
@media (max-width: 720px){
  .icon-field-item{ opacity: calc(var(--icon-opacity, 0.12) * 0.7); }
}

/* ============================================================
   RESPONSIVE (continued)
   ============================================================ */
@media (max-width: 980px){
  .hero-grid{ grid-template-columns: 1fr; }
  .scan-stage{ max-width: 340px; margin: 0 auto; }
  .grid-4{ grid-template-columns: repeat(2,1fr); }
  .grid-3{ grid-template-columns: repeat(2,1fr); }
  .materials-strip{ grid-template-columns: repeat(2,1fr); }
  .material-item:nth-child(2){ border-right:none; }
  .footer-grid{ grid-template-columns: 1fr 1fr; }
  .process-row{ grid-template-columns: 60px 1fr; }
  .process-row p{ grid-column: 2/3; }
}
@media (max-width: 1080px){
  .nav-links{
    position:fixed; top:0; right:0; bottom:0;
    width: min(78vw, 320px);
    background: var(--ink);
    flex-direction:column;
    padding: 100px 32px 40px;
    transform: translateX(100%);
    transition: transform .4s var(--ease);
    gap: 26px;
    border-left:1px solid var(--line-dark);
  }
  .nav-links.is-open{ transform: translateX(0); }
  .nav-toggle{ display:flex; }
  .nav-cta{ display:none; }
}
@media (max-width: 720px){
  .grid-4, .grid-3, .grid-2{ grid-template-columns: 1fr; }
  .materials-strip{ grid-template-columns: 1fr; }
  .material-item{ border-right:none; border-bottom:1px solid var(--line-dark); }
  .footer-grid{ grid-template-columns: 1fr; gap:30px; }
  .cta-band .container{ flex-direction:column; align-items:flex-start; }
}