/* ============================================================
   WESTHAUZ ENERGY — DESIGN TOKENS
   Void charcoal base, electric blue + energy green accent duo.
   Display: Space Grotesk / Body: Inter / Utility: JetBrains Mono
   ============================================================ */

:root{
  --bg:            #0a0c0f;
  --bg-elevated:   #12151b;
  --bg-elevated-2: #171b22;
  --line:          rgba(255,255,255,0.08);
  --line-strong:   rgba(255,255,255,0.14);

  --text:          #eef1f4;
  --text-muted:    #8a929d;
  --text-faint:    #565d67;

  --blue:          #3d7dff;
  --blue-dim:      #3d7dff33;
  --green:         #00d68f;
  --green-dim:     #00d68f33;

  --grad-signal: linear-gradient(90deg, var(--blue), var(--green));

  --font-display: 'Space Grotesk', sans-serif;
  --font-body: 'Inter', sans-serif;
  --font-mono: 'JetBrains Mono', monospace;

  --container: 1180px;
  --pad: clamp(20px, 5vw, 64px);

  --ease: cubic-bezier(.16,1,.3,1);
}

@media (prefers-reduced-motion: reduce){
  *{ animation-duration: 0.01ms !important; animation-iteration-count: 1 !important; transition-duration: 0.01ms !important; scroll-behavior: auto !important; }
}

*{ box-sizing: border-box; margin:0; padding:0; }

html{ scroll-behavior: smooth; }

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

body::before{
  content:"";
  position: fixed;
  inset:0;
  background:
    radial-gradient(ellipse 900px 500px at 15% -10%, rgba(61,125,255,0.10), transparent 60%),
    radial-gradient(ellipse 700px 500px at 100% 10%, rgba(0,214,143,0.07), transparent 60%);
  pointer-events: none;
  z-index:0;
}

a{ color: inherit; text-decoration:none; }

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

.container{
  max-width: var(--container);
  margin: 0 auto;
  padding-left: var(--pad);
  padding-right: var(--pad);
  position: relative;
  z-index: 1;
}

h1,h2,h3,h4{
  font-family: var(--font-display);
  font-weight: 600;
  letter-spacing: -0.02em;
  line-height: 1.08;
}

h1{ font-size: clamp(2.6rem, 6vw, 4.6rem); }
h2{ font-size: clamp(1.9rem, 3.6vw, 2.8rem); }
h3{ font-size: clamp(1.2rem, 2vw, 1.5rem); }

p{ color: var(--text-muted); max-width: 62ch; }

.eyebrow{
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--text-faint);
  display:flex;
  align-items:center;
  gap: 10px;
  margin-bottom: 18px;
}
.eyebrow::before{
  content:"";
  width: 18px; height: 1px;
  background: var(--grad-signal);
}

/* ---------- Buttons ---------- */
.btn{
  display:inline-flex;
  align-items:center;
  gap: 8px;
  font-family: var(--font-mono);
  font-size: 0.82rem;
  letter-spacing: 0.02em;
  padding: 14px 26px;
  border-radius: 100px;
  border: 1px solid var(--line-strong);
  background: transparent;
  color: var(--text);
  cursor: pointer;
  transition: all .3s var(--ease);
  white-space: nowrap;
}
.btn:hover{ border-color: var(--blue); box-shadow: 0 0 0 1px var(--blue) inset, 0 0 24px var(--blue-dim); }
.btn-primary{
  background: var(--text);
  color: var(--bg);
  border-color: var(--text);
}
.btn-primary:hover{
  background: var(--green);
  border-color: var(--green);
  color: #04140f;
  box-shadow: 0 0 32px var(--green-dim);
}
.btn-row{ display:flex; gap:14px; flex-wrap:wrap; }

/* ---------- Nav ---------- */
header{
  position: sticky;
  top:0;
  z-index: 100;
  background: rgba(10,12,15,0.72);
  backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--line);
}
nav.container{
  display:flex;
  align-items:center;
  justify-content: space-between;
  padding-top: 20px;
  padding-bottom: 20px;
}
.logo{
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.15rem;
  letter-spacing: -0.01em;
  display:flex;
  align-items:center;
  gap:10px;
}
.logo-mark-icon{
  height: 30px;
  width: auto;
  display: block;
}
.logo-sub{
  font-family: var(--font-mono);
  font-size: 0.62rem;
  color: var(--text-faint);
  letter-spacing: 0.12em;
  margin-left: 4px;
  font-weight: 400;
  display:none;
}
@media(min-width:640px){ .logo-sub{ display:inline; } }

.nav-links{
  display:flex;
  gap: 36px;
  list-style:none;
  font-size: 0.92rem;
  color: var(--text-muted);
}
.nav-links a{ position:relative; transition: color .25s; }
.nav-links a:hover, .nav-links a.active{ color: var(--text); }
.nav-links a.active::after{
  content:"";
  position:absolute;
  left:0; right:0; bottom:-22px;
  height:2px;
  background: var(--grad-signal);
}
.nav-cta{ display:flex; align-items:center; gap:20px; }
.nav-links-wrap{ display:none; }
@media(min-width:900px){ .nav-links-wrap{ display:block; } }
.nav-mobile-btn{ display:flex; background:none; border:1px solid var(--line-strong); border-radius:8px; padding:9px 11px; color:var(--text); }
@media(min-width:900px){ .nav-mobile-btn{ display:none; } }

/* ---------- Hero ---------- */
.hero{
  padding-top: clamp(60px, 12vh, 120px);
  padding-bottom: clamp(50px, 8vh, 90px);
  position: relative;
}
.hero-grid{
  display:grid;
  gap: 40px;
}
.hero h1{ margin-bottom: 22px; }
.hero h1 em{
  font-style: normal;
  background: var(--grad-signal);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.hero p.lead{
  font-size: 1.1rem;
  margin-bottom: 34px;
}

/* ---------- Section rhythm ---------- */
section{ padding: clamp(64px, 10vh, 120px) 0; position: relative; }
.section-head{ max-width: 640px; margin-bottom: 52px; }
.divider{ height:1px; background: var(--line); }

/* ---------- Cards ---------- */
.grid{ display:grid; gap: 20px; }
.g-2{ grid-template-columns: repeat(2, 1fr); }
.g-3{ grid-template-columns: repeat(3, 1fr); }
.g-4{ grid-template-columns: repeat(4, 1fr); }
@media(max-width:900px){ .g-3,.g-4{ grid-template-columns: repeat(2,1fr); } }
@media(max-width:640px){ .g-2,.g-3,.g-4{ grid-template-columns: 1fr; } }

.card{
  background: var(--bg-elevated);
  border: 1px solid var(--line);
  border-radius: 16px;
  padding: 30px;
  transition: border-color .3s var(--ease), transform .3s var(--ease);
}
.card:hover{ border-color: var(--line-strong); transform: translateY(-3px); }
.card .icon-tag{
  width:40px; height:40px;
  border-radius:10px;
  display:flex; align-items:center; justify-content:center;
  background: var(--bg-elevated-2);
  border: 1px solid var(--line);
  margin-bottom: 20px;
  color: var(--green);
}
.card h3{ margin-bottom: 10px; }
.card p{ font-size: 0.94rem; margin-bottom:0; }
.card .tags{ margin-top:18px; display:flex; flex-wrap:wrap; gap:8px; }
.tag{
  font-family: var(--font-mono);
  font-size: 0.68rem;
  color: var(--text-faint);
  border: 1px solid var(--line);
  padding: 4px 9px;
  border-radius: 100px;
}

/* ---------- Stat row ---------- */
.stat{ border-left: 1px solid var(--line); padding-left: 20px; }
.stat .num{ font-family: var(--font-display); font-size: 2.1rem; font-weight: 600; }
.stat .lbl{ font-family: var(--font-mono); font-size: 0.72rem; color: var(--text-faint); text-transform: uppercase; letter-spacing: 0.08em; margin-top:6px; }

/* ---------- Signature: energy flow diagram ---------- */
.flow-wrap{
  background: var(--bg-elevated);
  border: 1px solid var(--line);
  border-radius: 20px;
  padding: clamp(24px, 5vw, 56px);
  overflow-x: auto;
}
.flow-track{
  position: relative;
  display:flex;
  gap: 0;
  min-width: 780px;
  padding-top: 30px;
}
.flow-line{
  position:absolute;
  top: 45px;
  left: 5%;
  right: 5%;
  height: 2px;
  background: var(--line-strong);
  overflow:hidden;
}
.flow-line::after{
  content:"";
  position:absolute;
  top:0; left:-30%;
  width: 30%;
  height:100%;
  background: var(--grad-signal);
  animation: travel 3.6s linear infinite;
}
@keyframes travel{
  0%{ left:-30%; }
  100%{ left: 100%; }
}
.flow-step{
  flex: 1;
  display:flex;
  flex-direction: column;
  align-items:center;
  text-align:center;
  padding: 0 10px;
  position: relative;
}
.flow-dot{
  width: 14px; height:14px;
  border-radius:50%;
  background: var(--bg-elevated-2);
  border: 2px solid var(--blue);
  margin-bottom: 22px;
  position:relative;
  z-index:2;
}
.flow-step:last-child .flow-dot{ border-color: var(--green); box-shadow: 0 0 18px var(--green-dim); }
.flow-step .flow-label{ font-family: var(--font-mono); font-size: 0.72rem; color: var(--text); margin-bottom:6px; }
.flow-step .flow-sub{ font-size: 0.8rem; color: var(--text-faint); max-width: 16ch; }

/* ---------- Process (numbered — real sequence) ---------- */
.process-item{
  display:grid;
  grid-template-columns: 60px 1fr;
  gap: 24px;
  padding: 30px 0;
  border-top: 1px solid var(--line);
}
.process-item:last-child{ border-bottom: 1px solid var(--line); }
.process-num{ font-family: var(--font-mono); color: var(--text-faint); font-size:0.9rem; }
.process-item h3{ margin-bottom: 8px; }

/* ---------- CTA band ---------- */
.cta-band{
  border-radius: 24px;
  border: 1px solid var(--line);
  background: linear-gradient(135deg, rgba(61,125,255,0.08), rgba(0,214,143,0.05));
  padding: clamp(40px, 7vw, 72px);
  text-align:center;
}
.cta-band h2{ margin-bottom:16px; }
.cta-band p{ margin: 0 auto 32px; }
.cta-band .btn-row{ justify-content:center; }

/* ---------- Footer ---------- */
footer{
  border-top: 1px solid var(--line);
  padding: 50px 0 34px;
}
.footer-grid{
  display:grid;
  grid-template-columns: 1.4fr 1fr 1fr 1fr;
  gap: 32px;
  margin-bottom: 40px;
}
@media(max-width:760px){ .footer-grid{ grid-template-columns: 1fr 1fr; } }
.footer-grid h4{ font-family: var(--font-mono); font-size:0.72rem; text-transform:uppercase; letter-spacing:0.08em; color: var(--text-faint); margin-bottom:16px; font-weight:500; }
.footer-links{ list-style:none; display:flex; flex-direction:column; gap:10px; font-size:0.9rem; color: var(--text-muted); }
.footer-links a:hover{ color: var(--text); }
.footer-bottom{
  display:flex;
  justify-content:space-between;
  align-items:center;
  flex-wrap:wrap;
  gap: 12px;
  padding-top: 24px;
  border-top: 1px solid var(--line);
  font-size: 0.8rem;
  color: var(--text-faint);
}

/* ---------- Page hero (inner pages) ---------- */
.page-hero{ padding: 60px 0 20px; }
.page-hero .eyebrow{ margin-bottom: 20px; }
.page-hero p{ font-size: 1.05rem; margin-top: 18px; }

/* ---------- Utility ---------- */
.mt-0{ margin-top:0; }
.center{ text-align:center; margin-left:auto; margin-right:auto; }
.reveal{ opacity:0; transform: translateY(18px); transition: opacity .7s var(--ease), transform .7s var(--ease); }
.reveal.in{ opacity:1; transform:none; }

/* ---------- Form (contact page) ---------- */
.form-grid{ display:grid; gap:18px; }
label{ font-family: var(--font-mono); font-size:0.72rem; text-transform:uppercase; letter-spacing:0.06em; color: var(--text-faint); display:block; margin-bottom:8px; }
input, select, textarea{
  width:100%;
  background: var(--bg-elevated);
  border: 1px solid var(--line);
  border-radius: 10px;
  padding: 13px 16px;
  color: var(--text);
  font-family: var(--font-body);
  font-size: 0.94rem;
}
input:focus, select:focus, textarea:focus{ outline: none; border-color: var(--blue); }
textarea{ resize: vertical; min-height: 110px; }
.field{ margin-bottom:0; }

/* image placeholder blocks (swap for real photography) */
.imgph{
  background:
    repeating-linear-gradient(135deg, var(--bg-elevated-2), var(--bg-elevated-2) 10px, var(--bg-elevated) 10px, var(--bg-elevated) 20px);
  border: 1px solid var(--line);
  border-radius: 16px;
  display:flex; align-items:center; justify-content:center;
  color: var(--text-faint);
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.05em;
  text-align:center;
  padding: 20px;
  min-height: 220px;
}

.photo{
  border-radius: 16px;
  border: 1px solid var(--line);
  overflow: hidden;
  min-height: 220px;
}
.photo img{
  width: 100%;
  height: 100%;
  min-height: inherit;
  object-fit: cover;
  display:block;
}

/* Hero background photo treatment */
.hero{ position: relative; }
.hero-bg{
  position: absolute;
  inset: 0;
  z-index: 0;
  overflow: hidden;
}
.hero-bg img{
  width: 100%; height: 100%;
  object-fit: cover;
  opacity: 0.32;
}
.hero-bg::after{
  content: "";
  position: absolute; inset: 0;
  background: linear-gradient(180deg, rgba(10,12,15,0.55) 0%, var(--bg) 92%);
}
.hero .container{ position: relative; z-index: 1; }