/* ==========================================================================
   SIFFAN TECHNICAL SERVICES — DESIGN SYSTEM
   A "Living Blueprint" visual language: engineering schematic linework,
   drawing-sheet coordinates, and blue→cyan signal gradients standing in
   for the electrical / mechanical / plumbing systems the company builds.
   ========================================================================== */

/* ---- Fonts ---- */
@import url('https://fonts.googleapis.com/css2?family=Space+Grotesk:wght@400;500;600;700&family=Inter:wght@400;500;600;700;800&family=IBM+Plex+Mono:wght@400;500;600&display=swap');

:root{
  /* Brand palette (from brief) */
  --blue:#0057FF;
  --cyan:#00C2FF;
  --dark:#06111F;
  --dark-2:#0A1830;
  --dark-3:#0F2340;
  --light:#FFFFFF;
  --gray:#F5F7FA;
  --text-muted:#6B7280;
  --text-dark:#0B1220;

  --grad: linear-gradient(135deg, var(--blue), var(--cyan));
  --grad-soft: linear-gradient(135deg, rgba(0,87,255,.12), rgba(0,194,255,.12));

  --glass-bg: rgba(255,255,255,.06);
  --glass-border: rgba(255,255,255,.14);
  --glass-bg-light: rgba(255,255,255,.65);
  --glass-border-light: rgba(11,18,32,.08);

  --shadow-sm: 0 2px 10px rgba(6,17,31,.06);
  --shadow-md: 0 10px 30px rgba(6,17,31,.10);
  --shadow-lg: 0 25px 60px rgba(6,17,31,.16);
  --shadow-glow: 0 0 0 1px rgba(0,87,255,.15), 0 20px 50px rgba(0,87,255,.18);

  --radius-sm: 10px;
  --radius-md: 16px;
  --radius-lg: 24px;
  --radius-xl: 32px;

  --ease: cubic-bezier(.16,.8,.24,1);
  --ease-soft: cubic-bezier(.4,0,.2,1);

  --header-h: 88px;
  --container: 1240px;
}

*,*::before,*::after{ box-sizing:border-box; margin:0; padding:0; }
html{ scroll-behavior:smooth; }
html,body{ overflow-x:hidden; }

body{
  font-family:'Inter', sans-serif;
  color:var(--text-dark);
  background:var(--light);
  line-height:1.6;
  -webkit-font-smoothing:antialiased;
  -moz-osx-font-smoothing:grayscale;
}

img{ max-width:100%; display:block; }
a{ color:inherit; text-decoration:none; }
ul{ list-style:none; }
button{ font-family:inherit; cursor:pointer; border:none; background:none; color:inherit; }
input,textarea,select{ font-family:inherit; }
svg{ display:block; }

.container{
  width:100%;
  max-width:var(--container);
  margin:0 auto;
  padding:0 32px;
}

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

/* Visible keyboard focus */
a:focus-visible, button:focus-visible, input:focus-visible, textarea:focus-visible, select:focus-visible, summary:focus-visible{
  outline:2px solid var(--cyan);
  outline-offset:3px;
  border-radius:4px;
}

/* ---- Typography ---- */
h1,h2,h3,h4,h5,h6{ font-family:'Space Grotesk', sans-serif; color:var(--dark); font-weight:600; line-height:1.12; letter-spacing:-.01em; }

.h-display{ font-size:clamp(2.8rem, 5.4vw, 5.4rem); font-weight:700; letter-spacing:-.02em; }
.h-xl{ font-size:clamp(2.2rem, 3.6vw, 3.4rem); font-weight:700; letter-spacing:-.02em; }
.h-lg{ font-size:clamp(1.7rem, 2.6vw, 2.4rem); }
.h-md{ font-size:clamp(1.3rem, 1.8vw, 1.6rem); }

p{ color:var(--text-muted); }
.lead{ font-size:1.15rem; line-height:1.7; color:var(--text-muted); }

.mono{
  font-family:'IBM Plex Mono', monospace;
  letter-spacing:.14em;
  text-transform:uppercase;
  font-size:.72rem;
  font-weight:600;
}

.eyebrow{
  display:inline-flex;
  align-items:center;
  gap:10px;
  font-family:'IBM Plex Mono', monospace;
  letter-spacing:.18em;
  text-transform:uppercase;
  font-size:.72rem;
  font-weight:600;
  color:var(--blue);
  margin-bottom:18px;
}
.eyebrow::before{
  content:'';
  width:26px; height:1px;
  background:var(--grad);
}
.eyebrow.on-dark{ color:var(--cyan); }

.section-head{ max-width:680px; margin-bottom:56px; }
.section-head.center{ margin-left:auto; margin-right:auto; text-align:center; }
.section-head p{ margin-top:16px; }

/* Drawing-sheet coordinate tag — signature detail echoing engineering drawings */
.dwg-tag{
  font-family:'IBM Plex Mono', monospace;
  font-size:.68rem;
  letter-spacing:.12em;
  color:rgba(255,255,255,.35);
  text-transform:uppercase;
}
.dwg-tag.dark{ color:rgba(11,18,32,.32); }

section{ position:relative; }
.section-pad{ padding:130px 0; }
.section-pad-sm{ padding:90px 0; }
@media (max-width:900px){
  .section-pad{ padding:90px 0; }
  .section-pad-sm{ padding:64px 0; }
}

.bg-dark{ background:var(--dark); color:var(--light); }
.bg-dark h1,.bg-dark h2,.bg-dark h3,.bg-dark h4{ color:var(--light); }
.bg-dark p{ color:rgba(255,255,255,.62); }
.bg-gray{ background:var(--gray); }

/* ---- Buttons ---- */
.btn{
  position:relative;
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:10px;
  padding:17px 34px;
  border-radius:100px;
  font-weight:600;
  font-size:.95rem;
  letter-spacing:.01em;
  overflow:hidden;
  transition:transform .45s var(--ease), box-shadow .45s var(--ease);
  white-space:nowrap;
}
.btn .ripple{
  position:absolute; border-radius:50%; pointer-events:none;
  background:rgba(255,255,255,.5);
  transform:scale(0); animation:ripple .65s var(--ease-soft);
}
@keyframes ripple{ to{ transform:scale(1); opacity:0; } }

.btn-primary{
  background:var(--grad);
  color:#fff;
  box-shadow:0 14px 30px -10px rgba(0,87,255,.55);
}
.btn-primary:hover{ transform:translateY(-3px); box-shadow:0 20px 40px -8px rgba(0,87,255,.6); }

.btn-ghost{
  background:rgba(255,255,255,.06);
  color:#fff;
  border:1px solid rgba(255,255,255,.28);
  backdrop-filter:blur(8px);
}
.btn-ghost:hover{ background:rgba(255,255,255,.14); transform:translateY(-3px); border-color:rgba(255,255,255,.5); }

.btn-dark{
  background:var(--dark);
  color:#fff;
}
.btn-dark:hover{ transform:translateY(-3px); box-shadow:0 16px 34px -10px rgba(6,17,31,.5); }

.btn-outline{
  background:transparent;
  color:var(--dark);
  border:1.5px solid rgba(11,18,32,.16);
}
.btn-outline:hover{ border-color:var(--blue); color:var(--blue); transform:translateY(-3px); }

.btn-sm{ padding:12px 24px; font-size:.85rem; }
.btn-block{ width:100%; }
.btn-wa{
  background:#25D366; color:#fff;
}
.btn-wa:hover{ transform:translateY(-3px); box-shadow:0 16px 30px -10px rgba(37,211,102,.55); }

/* ---- Header ---- */
.site-header{
  position:fixed; top:0; left:0; right:0; z-index:1000;
  height:var(--header-h);
  display:flex; align-items:center;
  transition:background .5s var(--ease), backdrop-filter .5s var(--ease), border-color .5s var(--ease), height .4s var(--ease), box-shadow .5s var(--ease);
  border-bottom:1px solid transparent;
}
.site-header .container{ display:flex; align-items:center; justify-content:space-between; gap:24px; }

.site-header.scrolled{
  height:76px;
  background:rgba(6,17,31,.72);
  backdrop-filter:blur(18px) saturate(140%);
  -webkit-backdrop-filter:blur(18px) saturate(140%);
  border-bottom:1px solid rgba(255,255,255,.08);
  box-shadow:0 10px 40px rgba(0,0,0,.25);
}

.brand{ display:flex; align-items:center; gap:12px; }
.brand img{ height:42px; width:auto; filter:drop-shadow(0 2px 10px rgba(0,0,0,.25)); }
.brand-word{ display:flex; flex-direction:column; line-height:1.05; }
.brand-word b{ font-family:'Space Grotesk',sans-serif; color:#fff; font-size:1.05rem; letter-spacing:.03em; font-weight:700; }
.brand-word span{ font-family:'IBM Plex Mono',monospace; color:var(--cyan); font-size:.6rem; letter-spacing:.16em; text-transform:uppercase; }

.nav-links{ display:flex; align-items:center; gap:8px; }
.nav-links a{
  position:relative;
  padding:10px 16px;
  font-size:.9rem; font-weight:500;
  color:rgba(255,255,255,.82);
  border-radius:100px;
  transition:color .3s, background .3s;
}
.nav-links a:hover{ color:#fff; background:rgba(255,255,255,.08); }
.nav-links a.active{ color:#fff; background:rgba(255,255,255,.1); }

.header-actions{ display:flex; align-items:center; gap:14px; }
.header-actions .btn{ padding:13px 26px; font-size:.85rem; }

.nav-toggle{
  display:none;
  width:44px; height:44px;
  border-radius:50%;
  background:rgba(255,255,255,.08);
  border:1px solid rgba(255,255,255,.18);
  color:#fff;
  align-items:center; justify-content:center;
}

@media (max-width:1080px){
  .nav-links{
    position:fixed; inset:76px 0 0 0;
    flex-direction:column; align-items:stretch;
    gap:4px; padding:18px 24px 30px;
    background:rgba(6,17,31,.98);
    backdrop-filter:blur(20px);
    transform:translateY(-12px);
    opacity:0; visibility:hidden;
    transition:opacity .35s var(--ease), transform .35s var(--ease), visibility .35s;
    overflow-y:auto;
  }
  .nav-links.open{ opacity:1; visibility:visible; transform:translateY(0); }
  .nav-links a{ padding:16px 18px; font-size:1.05rem; border-bottom:1px solid rgba(255,255,255,.06); border-radius:0; }
  .header-actions .btn-outline-nav{ display:none; }
  .nav-toggle{ display:flex; }
  .header-actions .quote-btn-desktop{ display:none; }
}

/* ---- Hero ---- */
.hero{
  position:relative;
  min-height:100vh;
  display:flex; align-items:center;
  background:var(--dark);
  overflow:hidden;
  padding-top:var(--header-h);
}
.hero-bg-image{
  position:absolute; inset:0;
  background:
    radial-gradient(ellipse 60% 55% at 78% 18%, rgba(0,87,255,.28), transparent 60%),
    radial-gradient(ellipse 50% 45% at 15% 85%, rgba(0,194,255,.16), transparent 60%),
    linear-gradient(180deg, #06111F 0%, #081A30 55%, #06111F 100%);
}
.hero canvas{ position:absolute; inset:0; width:100%; height:100%; opacity:.75; }
.hero-scrim{ position:absolute; inset:0; background:linear-gradient(180deg, rgba(6,17,31,.2) 0%, rgba(6,17,31,.55) 78%, var(--dark) 100%); }

.hero-inner{ position:relative; z-index:2; padding:80px 0 60px; }
.hero-badge{
  display:inline-flex; align-items:center; gap:10px;
  padding:9px 18px 9px 9px;
  border-radius:100px;
  background:rgba(255,255,255,.06);
  border:1px solid rgba(255,255,255,.16);
  backdrop-filter:blur(10px);
  margin-bottom:28px;
  font-size:.78rem; color:rgba(255,255,255,.85);
}
.hero-badge .dot{ width:24px;height:24px;border-radius:50%;background:var(--grad); display:flex;align-items:center;justify-content:center; }
.hero-badge svg{ width:13px;height:13px; }

.hero h1{ color:#fff; max-width:920px; }
.hero h1 .accent{
  background:var(--grad);
  -webkit-background-clip:text; background-clip:text; color:transparent;
}
.hero .lead{ max-width:640px; margin-top:26px; color:rgba(255,255,255,.68); font-size:1.15rem; }
.hero-cta{ display:flex; gap:18px; margin-top:42px; flex-wrap:wrap; }

.hero-stats{
  position:relative; z-index:2;
  display:grid; grid-template-columns:repeat(4,1fr);
  border-top:1px solid rgba(255,255,255,.1);
  margin-top:80px;
}
.hero-stats .stat{ padding:26px 28px; border-right:1px solid rgba(255,255,255,.1); }
.hero-stats .stat:last-child{ border-right:none; }
.hero-stats .num{ font-family:'Space Grotesk',sans-serif; font-size:2rem; font-weight:700; color:#fff; }
.hero-stats .num .grad{ background:var(--grad); -webkit-background-clip:text; background-clip:text; color:transparent; }
.hero-stats .lbl{ font-family:'IBM Plex Mono',monospace; font-size:.68rem; letter-spacing:.1em; text-transform:uppercase; color:rgba(255,255,255,.45); margin-top:6px; }

.scroll-cue{
  position:absolute; bottom:28px; left:50%; transform:translateX(-50%);
  display:flex; flex-direction:column; align-items:center; gap:10px;
  z-index:2; color:rgba(255,255,255,.5);
}
.scroll-cue .line{ width:1px; height:38px; background:linear-gradient(180deg, rgba(255,255,255,.6), transparent); overflow:hidden; position:relative; }
.scroll-cue .line::after{ content:''; position:absolute; top:-40px; left:0; width:100%; height:40px; background:linear-gradient(180deg, transparent, var(--cyan)); animation:scrollcue 2.2s var(--ease-soft) infinite; }
@keyframes scrollcue{ to{ top:80px; } }

/* page hero (inner pages) */
.page-hero{
  position:relative; background:var(--dark);
  padding:calc(var(--header-h) + 120px) 0 90px;
  overflow:hidden;
}
.page-hero canvas{ position:absolute; inset:0; width:100%; height:100%; opacity:.55; }
.page-hero .hero-scrim{ background:linear-gradient(180deg, rgba(6,17,31,.35), rgba(6,17,31,.9)); }
.page-hero .inner{ position:relative; z-index:2; }
.breadcrumb{ display:flex; align-items:center; gap:8px; font-family:'IBM Plex Mono',monospace; font-size:.72rem; letter-spacing:.1em; text-transform:uppercase; color:rgba(255,255,255,.45); margin-bottom:22px; }
.breadcrumb a:hover{ color:var(--cyan); }
.page-hero h1{ color:#fff; max-width:760px; }
.page-hero .lead{ color:rgba(255,255,255,.65); max-width:600px; margin-top:18px; }

/* ---- Stat / highlight cards ---- */
.stats-strip{ margin-top:-92px; position:relative; z-index:5; }
.stat-card-grid{
  display:grid; grid-template-columns:repeat(4,1fr); gap:22px;
}
.stat-card{
  background:rgba(255,255,255,.85);
  backdrop-filter:blur(20px);
  border:1px solid rgba(255,255,255,.6);
  border-radius:var(--radius-lg);
  padding:34px 28px;
  box-shadow:var(--shadow-lg);
  transition:transform .5s var(--ease), box-shadow .5s var(--ease);
}
.stat-card:hover{ transform:translateY(-8px); box-shadow:0 30px 60px -10px rgba(0,87,255,.22); }
.stat-card .icon{
  width:52px; height:52px; border-radius:14px;
  background:var(--grad-soft);
  display:flex; align-items:center; justify-content:center;
  margin-bottom:22px;
}
.stat-card .icon svg{ width:24px; height:24px; stroke:var(--blue); }
.stat-card .num{ font-family:'Space Grotesk',sans-serif; font-weight:700; font-size:2.3rem; color:var(--dark); }
.stat-card .lbl{ margin-top:6px; color:var(--text-muted); font-size:.92rem; }

@media (max-width:900px){
  .stat-card-grid{ grid-template-columns:repeat(2,1fr); }
  .hero-stats{ grid-template-columns:repeat(2,1fr); }
  .hero-stats .stat:nth-child(2){ border-right:none; }
  .stats-strip{ margin-top:-60px; }
}
@media (max-width:560px){
  .stat-card-grid{ grid-template-columns:1fr; }
}

/* ---- Glass panel / cards general ---- */
.glass-panel{
  background:var(--glass-bg);
  border:1px solid var(--glass-border);
  backdrop-filter:blur(16px);
  border-radius:var(--radius-lg);
}
.card{
  background:#fff;
  border:1px solid rgba(11,18,32,.06);
  border-radius:var(--radius-lg);
  box-shadow:var(--shadow-sm);
  transition:transform .5s var(--ease), box-shadow .5s var(--ease), border-color .5s;
}
.card:hover{ transform:translateY(-6px); box-shadow:var(--shadow-lg); border-color:rgba(0,87,255,.18); }

/* ---- Reveal on scroll ---- */
[data-reveal]{ opacity:0; transform:translateY(34px); transition:opacity .9s var(--ease), transform .9s var(--ease); }
[data-reveal].in{ opacity:1; transform:translateY(0); }
[data-reveal="fade"]{ transform:none; }
[data-reveal="left"]{ transform:translateX(-40px); }
[data-reveal="left"].in{ transform:translateX(0); }
[data-reveal="right"]{ transform:translateX(40px); }
[data-reveal="right"].in{ transform:translateX(0); }
[data-reveal-delay="1"]{ transition-delay:.12s; }
[data-reveal-delay="2"]{ transition-delay:.24s; }
[data-reveal-delay="3"]{ transition-delay:.36s; }
[data-reveal-delay="4"]{ transition-delay:.48s; }

/* ---- Blueprint divider motif ---- */
.blueprint-rule{
  display:flex; align-items:center; gap:16px;
  color:rgba(11,18,32,.3);
  margin:10px 0 46px;
}
.blueprint-rule::before,.blueprint-rule::after{ content:''; flex:1; height:1px; background:linear-gradient(90deg, transparent, rgba(11,18,32,.14), transparent); }

/* generic grid helpers */
.grid-2{ display:grid; grid-template-columns:1fr 1fr; gap:60px; align-items:center; }
.grid-3{ display:grid; grid-template-columns:repeat(3,1fr); gap:28px; }
.grid-4{ display:grid; grid-template-columns:repeat(4,1fr); gap:24px; }
@media (max-width:1000px){
  .grid-2{ grid-template-columns:1fr; gap:44px; }
  .grid-3{ grid-template-columns:repeat(2,1fr); }
  .grid-4{ grid-template-columns:repeat(2,1fr); }
}
@media (max-width:600px){
  .grid-3{ grid-template-columns:1fr; }
  .grid-4{ grid-template-columns:1fr; }
}

/* ---- Blueprint art panel (placeholder engineering illustration) ---- */
.art-panel{
  position:relative;
  border-radius:var(--radius-lg);
  overflow:hidden;
  background:linear-gradient(155deg, var(--dark) 0%, var(--dark-3) 100%);
  aspect-ratio:4/3.1;
  isolation:isolate;
}
.art-panel svg{ position:absolute; inset:0; width:100%; height:100%; }
.art-panel .tag{
  position:absolute; left:20px; bottom:18px;
  font-family:'IBM Plex Mono',monospace; font-size:.64rem; letter-spacing:.1em; text-transform:uppercase;
  color:rgba(255,255,255,.55);
}
.art-panel .corner{ position:absolute; width:22px; height:22px; border:1px solid rgba(255,255,255,.35); }
.art-panel .corner.tl{ top:16px; left:16px; border-right:none; border-bottom:none; }
.art-panel .corner.br{ bottom:16px; right:16px; border-left:none; border-top:none; }

/* ---- Footer ---- */
.site-footer{ background:var(--dark); color:rgba(255,255,255,.6); padding:90px 0 0; position:relative; overflow:hidden; }
.footer-grid{ display:grid; grid-template-columns:1.4fr 1fr 1fr 1.2fr; gap:50px; padding-bottom:60px; border-bottom:1px solid rgba(255,255,255,.08); }
.footer-brand{ display:flex; align-items:center; gap:12px; margin-bottom:20px; }
.footer-brand img{ height:38px; }
.footer-brand b{ font-family:'Space Grotesk',sans-serif; color:#fff; font-size:1.05rem; }
.site-footer p{ font-size:.92rem; color:rgba(255,255,255,.5); }
.footer-col h4{ color:#fff; font-size:.95rem; margin-bottom:20px; letter-spacing:.02em; }
.footer-col ul li{ margin-bottom:12px; }
.footer-col ul a{ font-size:.9rem; color:rgba(255,255,255,.55); transition:color .3s, padding-left .3s; }
.footer-col ul a:hover{ color:var(--cyan); padding-left:4px; }
.footer-license{
  margin-top:22px; display:flex; align-items:center; gap:10px;
  padding:12px 16px; border-radius:12px;
  background:rgba(255,255,255,.05); border:1px solid rgba(255,255,255,.1);
  font-family:'IBM Plex Mono',monospace; font-size:.68rem; color:rgba(255,255,255,.55); letter-spacing:.04em;
}
.footer-license svg{ width:16px; height:16px; flex-shrink:0; stroke:var(--cyan); }
.social-row{ display:flex; gap:10px; margin-top:22px; }
.social-row a{
  width:38px; height:38px; border-radius:50%;
  background:rgba(255,255,255,.06); border:1px solid rgba(255,255,255,.14);
  display:flex; align-items:center; justify-content:center;
  transition:background .3s, transform .3s, border-color .3s;
}
.social-row a:hover{ background:var(--grad); border-color:transparent; transform:translateY(-3px); }
.social-row svg{ width:16px; height:16px; }
.footer-bottom{ display:flex; justify-content:space-between; align-items:center; padding:26px 0; flex-wrap:wrap; gap:10px; font-size:.82rem; color:rgba(255,255,255,.4); }
.footer-bottom a{ color:rgba(255,255,255,.4); }
.footer-bottom a:hover{ color:var(--cyan); }

/* ---- Contact form ---- */
.field{ margin-bottom:22px; }
.field label{ display:block; font-size:.82rem; font-weight:600; color:var(--dark); margin-bottom:9px; }
.field input, .field select, .field textarea{
  width:100%; padding:15px 18px; border-radius:12px;
  border:1.5px solid rgba(11,18,32,.12);
  font-size:.95rem; color:var(--text-dark);
  transition:border-color .3s, box-shadow .3s;
  background:#fff;
}
.field input:focus, .field select:focus, .field textarea:focus{
  outline:none; border-color:var(--blue); box-shadow:0 0 0 4px rgba(0,87,255,.1);
}
.field textarea{ resize:vertical; min-height:130px; }
.field.error input, .field.error select, .field.error textarea{ border-color:#E5484D; }
.field .err-msg{ color:#E5484D; font-size:.78rem; margin-top:6px; display:none; }
.field.error .err-msg{ display:block; }
.row-2{ display:grid; grid-template-columns:1fr 1fr; gap:18px; }
@media (max-width:600px){ .row-2{ grid-template-columns:1fr; } }

.form-success{
  display:none; text-align:center; padding:60px 20px;
}
.form-success.show{ display:block; }
.form-success .icon{ width:70px;height:70px;border-radius:50%;background:var(--grad); display:flex;align-items:center;justify-content:center; margin:0 auto 22px; }
.form-success .icon svg{ width:30px;height:30px; stroke:#fff; }

/* ---- Floating WhatsApp button ---- */
.float-wa{
  position:fixed; right:26px; bottom:26px; z-index:900;
  width:60px; height:60px; border-radius:50%;
  background:#25D366; color:#fff;
  display:flex; align-items:center; justify-content:center;
  box-shadow:0 14px 30px -8px rgba(37,211,102,.6);
  transition:transform .4s var(--ease);
}
.float-wa:hover{ transform:scale(1.08); }
.float-wa svg{ width:28px; height:28px; }
.float-wa .pulse{
  position:absolute; inset:0; border-radius:50%; background:#25D366;
  animation:pulse-ring 2.4s var(--ease-soft) infinite;
}
@keyframes pulse-ring{ 0%{ transform:scale(1); opacity:.55; } 100%{ transform:scale(1.9); opacity:0; } }

/* ---- Loading screen ---- */
#loader{
  position:fixed; inset:0; z-index:9999;
  background:var(--dark);
  display:flex; align-items:center; justify-content:center;
  transition:opacity .7s var(--ease-soft), visibility .7s;
}
#loader.hide{ opacity:0; visibility:hidden; }
.loader-mark{ display:flex; flex-direction:column; align-items:center; gap:22px; }
.loader-mark img{ height:56px; opacity:0; animation:loaderfade .9s var(--ease-soft) forwards; }
@keyframes loaderfade{ to{ opacity:1; } }
.loader-bar{ width:180px; height:2px; background:rgba(255,255,255,.12); border-radius:2px; overflow:hidden; }
.loader-bar::after{ content:''; display:block; width:40%; height:100%; background:var(--grad); animation:loaderbar 1.1s var(--ease-soft) infinite; }
@keyframes loaderbar{ 0%{ transform:translateX(-100%); } 100%{ transform:translateX(350%); } }

/* ---- Back to top ---- */
.to-top{
  position:fixed; right:26px; bottom:98px; z-index:890;
  width:44px; height:44px; border-radius:50%;
  background:rgba(6,17,31,.85); color:#fff; border:1px solid rgba(255,255,255,.16);
  display:flex; align-items:center; justify-content:center;
  opacity:0; visibility:hidden; transform:translateY(10px);
  transition:opacity .4s, transform .4s, visibility .4s;
  backdrop-filter:blur(10px);
}
.to-top.show{ opacity:1; visibility:visible; transform:translateY(0); }
.to-top svg{ width:18px;height:18px; }

/* Utility */
.text-center{ text-align:center; }
.mt-0{ margin-top:0 !important; }
.tag-pill{
  display:inline-flex; align-items:center; padding:6px 14px; border-radius:100px;
  background:var(--grad-soft); color:var(--blue); font-size:.76rem; font-weight:600;
  font-family:'IBM Plex Mono',monospace; letter-spacing:.06em; text-transform:uppercase;
}