/* ==========================================================================
   CE CONSULTANTS — CORE STYLESHEET
   Engineering Infrastructure. Mapping Possibilities. Building Better Futures.
   ========================================================================== */

@import url('https://fonts.googleapis.com/css2?family=Space+Grotesk:wght@400;500;600;700&family=Inter:wght@300;400;500;600;700&family=IBM+Plex+Mono:wght@400;500&display=swap');

/* -------------------------------------------------------------------------
   1. DESIGN TOKENS
   ------------------------------------------------------------------------- */
:root{
  /* Palette */
  --navy-deep:   #060B12;
  --navy:        #0B1626;
  --navy-panel:  #101F33;
  --charcoal:    #171B21;
  --white:       #FFFFFF;
  --off-white:   #EBEEF2;
  --steel:       #8A93A3;
  --steel-dim:   #4C5566;
  --line:        rgba(235,238,242,0.10);
  --line-strong: rgba(235,238,242,0.18);

  --cyan:        #35E1E8;
  --cyan-dim:    rgba(53,225,232,0.35);
  --blue:        #3E7BFF;

  /* Type */
  --f-display: 'Space Grotesk', sans-serif;
  --f-body:    'Inter', sans-serif;
  --f-mono:    'IBM Plex Mono', monospace;

  /* Scale */
  --fs-hero: clamp(2.6rem, 6.4vw, 6.4rem);
  --fs-h1:   clamp(2.2rem, 4.4vw, 3.8rem);
  --fs-h2:   clamp(1.7rem, 3vw, 2.6rem);
  --fs-h3:   clamp(1.2rem, 1.8vw, 1.5rem);
  --fs-body: 1rem;
  --fs-small: 0.85rem;
  --fs-micro: 0.72rem;

  /* Layout */
  --container: 1320px;
  --gutter: clamp(1.25rem, 4vw, 4rem);
  --radius: 2px;
  --ease: cubic-bezier(0.16, 1, 0.3, 1);
  --ease-soft: cubic-bezier(0.4, 0, 0.2, 1);
  --dur: 0.6s;

  --nav-h: 92px;
}

/* -------------------------------------------------------------------------
   2. RESET
   ------------------------------------------------------------------------- */
*, *::before, *::after{ box-sizing: border-box; margin:0; padding:0; }
html{ scroll-behavior: smooth; }
[id]{ scroll-margin-top: 110px; }
html{ overflow-x: hidden; }
body{ max-width:100%; }
body{
  background: var(--navy-deep);
  color: var(--off-white);
  font-family: var(--f-body);
  font-size: var(--fs-body);
  line-height: 1.6;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}
img{ max-width:100%; display:block; }
a{ color:inherit; text-decoration:none; }
ul, ol{ list-style:none; }
button{ font-family:inherit; cursor:pointer; background:none; border:none; color:inherit; }
input, textarea, select{ font-family:inherit; font-size:inherit; color:inherit; }
svg{ display:block; }
:focus-visible{ outline: 2px solid var(--cyan); outline-offset: 3px; }

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

/* -------------------------------------------------------------------------
   3. TYPOGRAPHY
   ------------------------------------------------------------------------- */
h1, h2, h3, h4{
  font-family: var(--f-display);
  font-weight: 600;
  line-height: 1.08;
  letter-spacing: -0.01em;
  color: var(--white);
}
h1{ font-size: var(--fs-h1); }
h2{ font-size: var(--fs-h2); }
h3{ font-size: var(--fs-h3); font-weight: 500; }

p{ color: var(--steel); max-width: 60ch; }

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

.eyebrow{
  display:flex; align-items:center; gap:0.6rem;
  font-family: var(--f-mono);
  font-size: var(--fs-micro);
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--cyan);
  margin-bottom: 1.4rem;
}
.eyebrow::before{
  content:''; width: 22px; height: 1px; background: var(--cyan);
}

.section-head{ max-width: 780px; margin-bottom: 3.4rem; }
.section-head p{ margin-top: 1.1rem; font-size: 1.05rem; max-width: 56ch; }

/* -------------------------------------------------------------------------
   4. LAYOUT HELPERS
   ------------------------------------------------------------------------- */
.container{
  width: 100%;
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 var(--gutter);
}
.section{ position: relative; padding: 8rem 0; }
.section--tight{ padding: 5rem 0; }
.section--dark{ background: var(--navy); }
.section--deep{ background: var(--navy-deep); }
.section--charcoal{ background: var(--charcoal); }
.section--border-t{ border-top: 1px solid var(--line); }

.grid-2{ display:grid; grid-template-columns: 1fr 1fr; gap: 4rem; align-items:center; }
.grid-3{ display:grid; grid-template-columns: repeat(3, 1fr); gap: 2.2rem; }

/* technical grid overlay, reused across sections */
.tech-grid{
  position:absolute; inset:0;
  background-image:
    linear-gradient(var(--line) 1px, transparent 1px),
    linear-gradient(90deg, var(--line) 1px, transparent 1px);
  background-size: 64px 64px;
  pointer-events:none;
  mask-image: linear-gradient(to bottom, black, transparent 85%);
}

.coord-tag{
  position:absolute;
  font-family: var(--f-mono);
  font-size: var(--fs-micro);
  color: var(--steel-dim);
  letter-spacing: 0.08em;
  pointer-events:none;
}

/* -------------------------------------------------------------------------
   5. BUTTONS
   ------------------------------------------------------------------------- */
.btn{
  display:inline-flex; align-items:center; gap:0.65rem;
  font-family: var(--f-body); font-weight:600; font-size: 0.92rem;
  padding: 1rem 1.7rem;
  border: 1px solid var(--line-strong);
  border-radius: var(--radius);
  color: var(--white);
  position: relative;
  overflow: hidden;
  transition: border-color 0.4s var(--ease-soft), color 0.4s var(--ease-soft);
}
.btn span.arrow{ transition: transform 0.4s var(--ease-soft); display:inline-block; }
.btn:hover span.arrow{ transform: translateX(4px); }
.btn:hover{ border-color: var(--cyan); }

.btn--primary{
  background: var(--cyan);
  color: var(--navy-deep);
  border-color: var(--cyan);
}
.btn--primary:hover{ background: transparent; color: var(--cyan); }

.btn--ghost{ color: var(--off-white); }

.btn-row{ display:flex; gap:1rem; flex-wrap:wrap; margin-top: 2.4rem; }

/* -------------------------------------------------------------------------
   6. LOADER
   ------------------------------------------------------------------------- */
#loader{
  position:fixed; inset:0; z-index: 9999;
  background: var(--navy-deep);
  display:flex; align-items:center; justify-content:center;
  flex-direction:column;
  transition: opacity 0.7s var(--ease), visibility 0.7s var(--ease);
}
#loader.is-hidden{ opacity:0; visibility:hidden; pointer-events:none; }
.loader-mark{
  font-family: var(--f-display); font-weight:700;
  font-size: 3.4rem; color: var(--white); letter-spacing:0.02em;
  display:flex; overflow:hidden;
}
.loader-mark .full{
  font-size: 0.95rem; font-family: var(--f-mono); font-weight:400;
  color: var(--steel); letter-spacing:0.3em; margin-top: 0.9rem; opacity:0;
  text-transform:uppercase; transition: opacity 0.4s var(--ease-soft) 0.1s;
}
.loader-line{
  width: 220px; height:1px; background: var(--line-strong);
  margin-top: 2rem; position: relative; overflow:hidden;
}
.loader-line::after{
  content:''; position:absolute; left:0; top:0; height:100%; width:0%;
  background: var(--cyan); transition: width 0.9s var(--ease-soft) 0.2s;
}
.loader-line.is-drawing::after{ width:100%; }
@media (prefers-reduced-motion: reduce){
  #loader{ transition: none !important; }
}

/* -------------------------------------------------------------------------
   7. NAVIGATION
   ------------------------------------------------------------------------- */
.site-header{
  position: fixed; top:0; left:0; width:100%; z-index: 1150;
  height: var(--nav-h);
  display:flex; align-items:center;
  border-bottom: 1px solid transparent;
  transition: height 0.45s var(--ease-soft), border-color 0.45s var(--ease-soft), background 0.45s var(--ease-soft);
}
.site-header.is-scrolled{
  height: 68px;
  background: rgba(6,11,18,0.72);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-bottom-color: var(--line);
}
.nav-inner{
  width:100%; max-width: var(--container); margin:0 auto; padding: 0 var(--gutter);
  display:flex; align-items:center; justify-content:space-between;
}
.brand{
  font-family: var(--f-display); font-weight:700; font-size:1.15rem;
  letter-spacing: 0.02em; color: var(--white);
  display:flex; align-items:center; gap:0.6rem;
}
.brand .brand-mark{
  width: 30px; height:30px; border:1px solid var(--cyan-dim);
  display:flex; align-items:center; justify-content:center;
  font-family:var(--f-mono); font-size:0.7rem; color: var(--cyan);
}
.nav-links{ display:flex; align-items:center; gap: 2.4rem; }
.nav-links a{
  font-size: 0.88rem; font-weight:500; color: var(--off-white);
  position:relative; padding: 0.3rem 0;
}
.nav-links a::after{
  content:''; position:absolute; left:0; bottom:-2px; width:0; height:1px;
  background: var(--cyan); transition: width 0.35s var(--ease-soft);
}
.nav-links a:hover::after, .nav-links a.is-active::after{ width:100%; }
.nav-cta{ display:flex; align-items:center; gap:1.6rem; }

.nav-toggle{
  display:none; flex-direction:column; gap:5px; width: 26px; z-index:1200;
  position:relative;
}
.nav-toggle span{ height:1.5px; width:100%; background:var(--white); transition: all 0.35s var(--ease-soft); }
.nav-toggle.is-open span:nth-child(1){ transform: translateY(6.5px) rotate(45deg); }
.nav-toggle.is-open span:nth-child(2){ opacity:0; }
.nav-toggle.is-open span:nth-child(3){ transform: translateY(-6.5px) rotate(-45deg); }

.mobile-nav{
  position:fixed; inset:0; background: var(--navy-deep); z-index:1100;
  display:flex; flex-direction:column; justify-content:center; padding: 0 8vw;
  clip-path: circle(0px at calc(100% - 40px) 40px);
  transition: clip-path 0.6s var(--ease-soft);
}
.mobile-nav.is-open{ clip-path: circle(150% at calc(100% - 40px) 40px); }
.mobile-nav a{
  font-family: var(--f-display); font-size: 2.2rem; color: var(--white);
  padding: 0.6rem 0; display:block; border-bottom: 1px solid var(--line);
}
.mobile-nav .mobile-nav-foot{
  margin-top: 2.4rem; font-family: var(--f-mono); font-size:0.8rem; color: var(--steel);
}

/* -------------------------------------------------------------------------
   8. HERO
   ------------------------------------------------------------------------- */
.hero{
  position:relative; min-height: 100vh;
  display:flex; align-items:flex-end;
  background: radial-gradient(ellipse at 30% 20%, #0F2038 0%, var(--navy-deep) 62%);
  overflow:hidden;
}
.hero-photo{ position:absolute; inset:0; z-index:0; }
.hero-photo img{
  width:100%; height:100%; object-fit:cover; object-position: center 40%;
  opacity: 0.5; filter: saturate(0.75) contrast(1.08) brightness(0.9);
  transform: scale(1.08);
}
.hero-visual{ position:absolute; inset:0; z-index:0; }
.hero-visual svg{ width:100%; height:100%; }
.hero-scrim{
  position:absolute; inset:0;
  background: linear-gradient(180deg, rgba(6,11,18,0.2) 0%, rgba(6,11,18,0.55) 60%, var(--navy-deep) 100%);
  z-index:1;
}
.hero-content{
  position:relative; z-index:2; width:100%;
  padding: calc(var(--nav-h) + 3rem) 0 6rem;
}
.hero-label{
  font-family: var(--f-mono); font-size: var(--fs-micro); letter-spacing:0.3em;
  color: var(--cyan); text-transform:uppercase; margin-bottom:1.6rem;
  display:flex; align-items:center; gap:0.7rem;
}
.hero-label .dot{ width:6px; height:6px; border-radius:50%; background: var(--cyan); }

.hero-title{
  font-size: var(--fs-hero); font-family: var(--f-display); font-weight:700;
  line-height: 1.02; color: var(--white); max-width: 16ch;
}
.hero-title .line{ overflow:hidden; display:block; }
.hero-title .line span{ display:block; transform: translateY(115%); }
.hero-title .line:nth-child(2) span{ color: var(--cyan); }

.hero-desc{
  margin-top: 2rem; font-size: 1.1rem; max-width: 46ch; color: var(--steel);
  opacity:0; transform: translateY(18px);
}

.hero-foot{
  margin-top: 3.4rem; display:flex; align-items:center; justify-content:space-between;
  flex-wrap:wrap; gap:2rem;
  border-top: 1px solid var(--line); padding-top: 1.6rem;
}
.hero-loc{ font-family: var(--f-mono); font-size: var(--fs-micro); letter-spacing:0.2em; color: var(--steel); }

.scroll-indicator{
  position:absolute; right: var(--gutter); bottom: 2.6rem; z-index:2;
  display:flex; flex-direction:column; align-items:center; gap:0.7rem;
}
.scroll-indicator span{
  font-family: var(--f-mono); font-size: 0.65rem; letter-spacing:0.25em; color: var(--steel);
  writing-mode: vertical-rl;
}
.scroll-indicator .line{
  width:1px; height: 46px; background: var(--line-strong); position:relative; overflow:hidden;
}
.scroll-indicator .line::after{
  content:''; position:absolute; top:-100%; left:0; width:100%; height:100%;
  background: var(--cyan); animation: scrollLine 2.2s var(--ease-soft) infinite;
}

/* -------------------------------------------------------------------------
   9. ABOUT
   ------------------------------------------------------------------------- */
.about-visual{
  position:relative; aspect-ratio: 4/5; border: 1px solid var(--line);
  background: var(--navy-panel); overflow:hidden;
}
.pillars{ margin-top: 2.6rem; display:grid; grid-template-columns: repeat(3,1fr); gap:1.6rem; }
.pillar{ border-top: 1px solid var(--line-strong); padding-top:1rem; }
.pillar .num{ font-family:var(--f-mono); color:var(--cyan); font-size:0.75rem; }
.pillar h4{ font-size:1rem; margin-top:0.5rem; }

/* -------------------------------------------------------------------------
   10. EXPERTISE / SERVICES LIST
   ------------------------------------------------------------------------- */
.service-list{ border-top: 1px solid var(--line); margin-top: 2rem; }
.service-row{
  display:grid; grid-template-columns: 70px 1fr 1.2fr; gap: 2.5rem; align-items:center;
  padding: 1.9rem 0; border-bottom: 1px solid var(--line);
  cursor:pointer; position:relative; transition: padding 0.4s var(--ease-soft);
}
.service-row .num{ font-family: var(--f-mono); color: var(--steel-dim); font-size:0.85rem; }
.service-row h3{ font-size: clamp(1.2rem, 2.4vw, 1.8rem); font-weight:500; transition: color 0.35s; }
.service-row p{ font-size: 0.92rem; opacity:0.85; }
.service-row .visual{
  position:absolute; right: 0; top:50%; transform: translateY(-50%) scale(0.9);
  width: 190px; height: 120px; opacity:0; pointer-events:none;
  border:1px solid var(--line-strong); background: var(--navy-panel);
  transition: opacity 0.35s var(--ease-soft), transform 0.35s var(--ease-soft);
  overflow:hidden;
}
.service-row .visual img{
  width:100%; height:100%; object-fit:cover; display:block;
  filter: saturate(0.85) contrast(1.05) brightness(0.85);
}
.service-row:hover{ padding-left: 0.6rem; background: rgba(53,225,232,0.03); }
.service-row:hover h3{ color: var(--cyan); }
.service-row:hover .visual{ opacity:1; transform: translateY(-50%) scale(1); }

/* -------------------------------------------------------------------------
   11. REALITY TO DATA (signature scroll section)
   ------------------------------------------------------------------------- */
.r2d{ position:relative; height: 420vh; background: var(--navy-deep); }
.r2d-sticky{
  position: sticky; top:0; height:100vh; overflow:hidden;
  display:flex; flex-direction:column; justify-content:center;
}
.r2d-head{ position:relative; z-index:3; text-align:center; margin-bottom: 2rem; }
.r2d-stage{
  position:relative; width:100%; height: 56vh; max-height:560px;
}
.r2d-stage svg{ position:absolute; inset:0; width:100%; height:100%; }
.r2d-pipeline{
  position:relative; z-index:3; display:flex; justify-content:center; gap: 0;
  flex-wrap:wrap; margin-top: 2.4rem; font-family: var(--f-mono); font-size: 0.72rem;
  letter-spacing: 0.1em; color: var(--steel-dim); text-transform:uppercase;
}
.r2d-pipeline .step{ padding: 0.4rem 1.1rem; border:1px solid var(--line); transition: color 0.3s, border-color 0.3s; }
.r2d-pipeline .step.is-active{ color: var(--cyan); border-color: var(--cyan-dim); }
.r2d-pipeline .sep{ padding: 0.4rem 0; color: var(--steel-dim); }

/* -------------------------------------------------------------------------
   12. PROJECTS
   ------------------------------------------------------------------------- */
.project-grid{ display:grid; grid-template-columns: repeat(2, 1fr); gap: 1.6rem; margin-top: 2.4rem; }
.project-card{
  position:relative; aspect-ratio: 5/4; overflow:hidden;
  border: 1px solid var(--line); background: var(--navy-panel);
}
.project-card .pc-visual{ position:absolute; inset:0; transition: transform 0.7s var(--ease-soft); }
.project-card .pc-visual img{
  width:100%; height:100%; object-fit:cover; display:block;
  filter: saturate(0.85) contrast(1.05) brightness(0.85);
}
.project-card:hover .pc-visual{ transform: scale(1.06); }
.project-card .pc-overlay{
  position:absolute; inset:0; z-index:2;
  background: linear-gradient(180deg, rgba(6,11,18,0) 30%, rgba(6,11,18,0.92) 100%);
  display:flex; flex-direction:column; justify-content:flex-end; padding: 1.8rem;
}
.project-card .pc-cat{ font-family: var(--f-mono); font-size:0.68rem; letter-spacing:0.18em; color: var(--cyan); text-transform:uppercase; }
.project-card h3{ margin-top:0.5rem; font-size:1.3rem; }
.project-card .pc-desc{
  max-height:0; overflow:hidden; opacity:0; transition: max-height 0.5s var(--ease-soft), opacity 0.4s;
}
.project-card:hover .pc-desc{ max-height: 90px; opacity:1; margin-top:0.7rem; }
.project-card .pc-link{
  margin-top:1rem; font-size:0.85rem; font-weight:600; display:flex; align-items:center; gap:0.5rem; color: var(--white);
}
.project-card .pc-border{
  position:absolute; inset:0; z-index:3; pointer-events:none;
  border: 1px solid var(--cyan-dim); opacity:0; transition: opacity 0.4s;
}
.project-card:hover .pc-border{ opacity:1; }

/* -------------------------------------------------------------------------
   13. GIS LAYERS INTERFACE
   ------------------------------------------------------------------------- */
.gis-panel{
  border:1px solid var(--line); background: var(--navy-panel);
  display:grid; grid-template-columns: 240px 1fr; min-height: 480px;
}
.gis-layers{ border-right:1px solid var(--line); padding: 1.6rem; }
.gis-layers .gl-title{ font-family:var(--f-mono); font-size:0.68rem; letter-spacing:0.2em; color:var(--steel-dim); margin-bottom:1.2rem; text-transform:uppercase; }
.gis-layer-item{
  display:flex; align-items:center; gap:0.8rem; padding: 0.8rem 0;
  border-bottom: 1px solid var(--line); font-size:0.9rem; cursor:pointer;
}
.gis-layer-item .swatch{ width:12px; height:12px; border:1px solid var(--line-strong); flex-shrink:0; }
.gis-layer-item.is-active .swatch{ background: var(--cyan); border-color: var(--cyan); }
.gis-layer-item.is-active{ color: var(--white); }
.gis-layer-item:not(.is-active){ color: var(--steel); }
.gis-stage{ position:relative; overflow:hidden; }
.gis-stage svg{ position:absolute; inset:0; width:100%; height:100%; }

/* -------------------------------------------------------------------------
   14. WHY / CAPABILITY BLOCKS
   ------------------------------------------------------------------------- */
.capability-grid{ display:grid; grid-template-columns: repeat(3,1fr); gap: 1px; background: var(--line); margin-top:2.4rem; border:1px solid var(--line); }
.capability{ background: var(--navy-deep); padding: 2.4rem; }
.capability .cap-icon{ width:34px; height:34px; margin-bottom:1.6rem; }
.capability h4{ font-size:1.05rem; margin-bottom:0.7rem; }
.capability p{ font-size:0.9rem; }

/* -------------------------------------------------------------------------
   15. WORKFLOW
   ------------------------------------------------------------------------- */
.workflow{ position:relative; margin-top:3rem; }
.workflow-track{ position:relative; display:flex; justify-content:space-between; }
.workflow-track::before{
  content:''; position:absolute; top:17px; left:0; right:0; height:1px; background: var(--line);
}
.workflow-track .track-fill{
  position:absolute; top:17px; left:0; height:1px; background: var(--cyan); width:0%;
}
.wf-step{ position:relative; z-index:2; display:flex; flex-direction:column; align-items:center; text-align:center; width: 15%; }
.wf-step .wf-dot{
  width: 34px; height:34px; border-radius:50%; border:1px solid var(--line-strong);
  background: var(--navy-deep); display:flex; align-items:center; justify-content:center;
  font-family:var(--f-mono); font-size:0.7rem; color:var(--steel); margin-bottom:1.2rem;
  transition: all 0.4s var(--ease-soft);
}
.wf-step.is-active .wf-dot{ border-color:var(--cyan); color:var(--cyan); box-shadow: 0 0 0 4px rgba(53,225,232,0.08); }
.wf-step h4{ font-size:0.9rem; }

/* -------------------------------------------------------------------------
   16. INDIA MAP
   ------------------------------------------------------------------------- */
.map-wrap{ display:grid; grid-template-columns: 1fr 1fr; gap:3rem; align-items:center; margin-top:2.4rem; }
.map-stage{ position:relative; }
.map-stage svg{ width:100%; height:auto; }
.map-legend{ display:flex; flex-direction:column; gap:1rem; }
.map-legend-item{ display:flex; align-items:center; gap:0.8rem; font-size:0.9rem; color:var(--steel); }
.map-legend-item .dot{ width:8px; height:8px; border-radius:50%; }

/* -------------------------------------------------------------------------
   17. DARK IMMERSIVE — ENGINEERING INTELLIGENCE
   ------------------------------------------------------------------------- */
.intel{
  position:relative; min-height: 100vh; display:flex; align-items:center;
  background: var(--navy-deep); overflow:hidden;
}
.intel-visual{ position:absolute; inset:0; }
.intel-content{ position:relative; z-index:2; max-width:820px; }
.intel h2{ font-size: clamp(2rem, 4.6vw, 4rem); }

/* -------------------------------------------------------------------------
   18. CONTACT
   ------------------------------------------------------------------------- */
.contact-grid{ display:grid; grid-template-columns: 1fr 1.1fr; gap:4rem; }
.form-field{ margin-bottom:1.5rem; }
.form-field label{
  display:block; font-family:var(--f-mono); font-size:0.7rem; letter-spacing:0.15em;
  color:var(--steel); margin-bottom:0.6rem; text-transform:uppercase;
}
.form-field input, .form-field select, .form-field textarea{
  width:100%; background:transparent; border:1px solid var(--line-strong);
  padding: 0.9rem 1rem; color: var(--white); border-radius: var(--radius);
  transition: border-color 0.3s;
}
.form-field input:focus, .form-field select:focus, .form-field textarea:focus{ border-color: var(--cyan); }
.form-row{ display:grid; grid-template-columns:1fr 1fr; gap:1.5rem; }
.contact-info{ border-left: 1px solid var(--line); padding-left: 3rem; }
.contact-info .ci-block{ margin-bottom: 2.2rem; }
.contact-info .ci-label{ font-family:var(--f-mono); font-size:0.7rem; letter-spacing:0.15em; color:var(--cyan); text-transform:uppercase; margin-bottom:0.6rem; }

/* -------------------------------------------------------------------------
   19. FOOTER
   ------------------------------------------------------------------------- */
.site-footer{ background: var(--navy-deep); border-top:1px solid var(--line); padding: 5rem 0 2rem; }
.footer-top{ display:grid; grid-template-columns: 1.6fr 1fr 1fr 1fr; gap:3rem; padding-bottom: 3.5rem; border-bottom: 1px solid var(--line); }
.footer-brand h3{ font-size:1.3rem; }
.footer-brand p{ margin-top:1rem; font-size:0.9rem; max-width:34ch; }
.footer-col h5{ font-family:var(--f-mono); font-size:0.7rem; letter-spacing:0.15em; color:var(--steel); text-transform:uppercase; margin-bottom:1.2rem; }
.footer-col a{ display:block; font-size:0.9rem; color:var(--steel); padding:0.4rem 0; transition: color 0.3s; }
.footer-col a:hover{ color: var(--cyan); }
.footer-bottom{
  display:flex; justify-content:space-between; align-items:center; padding-top: 2rem;
  font-family:var(--f-mono); font-size:0.72rem; color: var(--steel-dim); flex-wrap:wrap; gap:1rem;
}

/* -------------------------------------------------------------------------
   20. PAGE HEADER (interior pages)
   ------------------------------------------------------------------------- */
.page-hero{
  position:relative; padding: calc(var(--nav-h) + 6rem) 0 5rem;
  background: radial-gradient(ellipse at 20% 0%, #0F2038 0%, var(--navy-deep) 60%);
  border-bottom: 1px solid var(--line);
  overflow:hidden;
}
.page-hero-photo{ position:absolute; inset:0; z-index:0; }
.page-hero-photo img{
  width:100%; height:100%; object-fit:cover; object-position:center 35%;
  opacity:0.28; filter: saturate(0.75) contrast(1.05) brightness(0.8);
  transform: scale(1.08);
}
.page-hero .tech-grid{ z-index:1; }
.page-hero .container{ position:relative; z-index:2; }
.page-hero::after{
  content:''; position:absolute; inset:0; z-index:1; pointer-events:none;
  background: linear-gradient(180deg, rgba(6,11,18,0.25) 0%, var(--navy-deep) 95%);
}
.page-hero h1{ max-width: 18ch; }
.page-hero .breadcrumb{ font-family:var(--f-mono); font-size:0.72rem; color:var(--steel); letter-spacing:0.1em; margin-bottom:1.4rem; }
.page-hero .breadcrumb a{ color:var(--cyan); }

/* -------------------------------------------------------------------------
   21. PROJECT DETAIL
   ------------------------------------------------------------------------- */
.pd-meta{ display:grid; grid-template-columns: repeat(4,1fr); gap:1.5rem; margin-top:2.4rem; border-top:1px solid var(--line); padding-top:2rem; }
.pd-meta .m-label{ font-family:var(--f-mono); font-size:0.68rem; letter-spacing:0.15em; color:var(--steel-dim); text-transform:uppercase; margin-bottom:0.5rem; }
.pd-meta .m-value{ font-family:var(--f-display); font-size:1.1rem; color:var(--white); }
.pd-body{ display:grid; grid-template-columns: 1fr 320px; gap:4rem; margin-top:4rem; }
.pd-section{ margin-bottom: 2.8rem; }
.pd-section h3{ margin-bottom:1rem; }
.pd-list li{ position:relative; padding-left:1.4rem; margin-bottom:0.7rem; color:var(--steel); font-size:0.95rem; }
.pd-list li::before{ content:''; position:absolute; left:0; top:0.55em; width:6px; height:1px; background:var(--cyan); }
.pd-side{ border-left:1px solid var(--line); padding-left:2rem; height:fit-content; position:sticky; top:120px; }
.pd-gallery{ display:grid; grid-template-columns:repeat(3,1fr); gap:1rem; margin-top:1rem; }
.pd-gallery .g-item{ aspect-ratio:1; border:1px solid var(--line); background:var(--navy-panel); overflow:hidden; }
.pd-gallery .g-item img{ width:100%; height:100%; object-fit:cover; filter: saturate(0.85) contrast(1.05) brightness(0.85); }
.related-grid{ display:grid; grid-template-columns:repeat(3,1fr); gap:1.6rem; margin-top:2.4rem; }

/* -------------------------------------------------------------------------
   22. MISC
   ------------------------------------------------------------------------- */
.section-tag{
  display:inline-block; font-family:var(--f-mono); font-size:0.65rem;
  letter-spacing:0.15em; text-transform:uppercase; padding:0.35rem 0.8rem;
  border:1px solid var(--line-strong); color:var(--steel); margin-bottom:1.2rem;
}
.section-tag--core{ color:var(--cyan); border-color:var(--cyan-dim); }
.bullet-list{ margin-top:1.6rem; }
.bullet-list li{
  position:relative; padding-left:1.5rem; margin-bottom:0.75rem;
  color:var(--steel); font-size:0.95rem;
}
.bullet-list li::before{
  content:''; position:absolute; left:0; top:0.6em; width:7px; height:1px; background:var(--cyan);
}
.core-strip{
  display:grid; grid-template-columns:repeat(3,1fr); gap:1px;
  background:var(--line); border:1px solid var(--line); margin-top:2.6rem;
}
.core-strip a{
  background:var(--navy-deep); padding:1.6rem; display:block; transition: background 0.3s;
}
.core-strip a:hover{ background: rgba(53,225,232,0.04); }
.core-strip .cs-num{ font-family:var(--f-mono); font-size:0.72rem; color:var(--cyan); }
.core-strip h4{ margin-top:0.6rem; font-size:1rem; }

.placeholder-tag{
  display:inline-block; font-family:var(--f-mono); font-size:0.68rem;
  color: var(--steel-dim); border:1px dashed var(--line-strong); padding:0.2rem 0.5rem;
}
.progress-bar{
  position:fixed; top:0; left:0; height:2px; background:var(--cyan); z-index:2000; width:0%;
}

/* Custom cursor */
.cursor-dot{
  position:fixed; top:0; left:0; width:8px; height:8px; border-radius:50%;
  background: var(--cyan); pointer-events:none; z-index:9998;
  transform: translate(-50%,-50%); transition: opacity 0.3s;
  mix-blend-mode: difference;
}
.cursor-ring{
  position:fixed; top:0; left:0; width:40px; height:40px; border-radius:50%;
  border:1px solid var(--cyan-dim); pointer-events:none; z-index:9997;
  transform: translate(-50%,-50%); transition: width 0.3s var(--ease-soft), height 0.3s var(--ease-soft), opacity 0.3s;
  display:flex; align-items:center; justify-content:center;
  font-family: var(--f-mono); font-size:0.6rem; letter-spacing:0.1em; color:var(--cyan); opacity:0;
}
.cursor-ring.is-visible{ opacity:1; }