/* DAR GROUP — premium one-page (dark/light toggle)
   Files: index.html, styles.css, script.js
*/

:root{
  --bg: #0B0F14;
  --panel: rgba(255,255,255,.06);
  --panel2: rgba(255,255,255,.04);
  --text: rgba(255,255,255,.92);
  --muted: rgba(255,255,255,.68);
  --border: rgba(255,255,255,.10);
  --shadow: 0 18px 60px rgba(0,0,0,.45);
  --accent: #4EA8FF;
  --accent2: #8B5CF6;
  --btnText: #061018;
  --radius: 22px;
  --radius2: 28px;
  --max: 1120px;
  --grid: rgba(255,255,255,.06);
  --focus: rgba(78,168,255,.45);
}

html[data-theme="light"]{
  --bg: #F7F8FB;
  --panel: rgba(0,0,0,.05);
  --panel2: rgba(0,0,0,.03);
  --text: rgba(10,16,24,.92);
  --muted: rgba(10,16,24,.62);
  --border: rgba(10,16,24,.12);
  --shadow: 0 18px 60px rgba(10,16,24,.10);
  --accent: #1D4ED8;
  --accent2: #7C3AED;
  --btnText: #ffffff;
  --grid: rgba(10,16,24,.06);
  --focus: rgba(29,78,216,.32);
}

*{ box-sizing:border-box; }
html,body{ height:100%; }
html{ background: var(--bg); }

body{
  margin:0;
  font-family: Inter, system-ui, -apple-system, Segoe UI, Roboto, Arial, sans-serif;
  background: radial-gradient(1200px 600px at 10% -10%, color-mix(in oklab, var(--accent) 18%, transparent), transparent 60%),
              radial-gradient(1000px 520px at 95% 10%, color-mix(in oklab, var(--accent2) 14%, transparent), transparent 60%),
              var(--bg);
  color: var(--text);
  letter-spacing: -0.01em;
  background: var(--bg);
  overflow-x:hidden;
}

/* Fixed ambient gradient layer (prevents background 'jump' on scroll) */
body::before{
  content: "";
  position: fixed;
  inset: -200px; /* buffer so gradients don't clip on resize */
  z-index: -1;
  pointer-events: none;
  background:
    radial-gradient(1200px 600px at 10% -10%, color-mix(in oklab, var(--accent) 18%, transparent), transparent 60%),
    radial-gradient(1000px 520px at 95% 10%, color-mix(in oklab, var(--accent2) 14%, transparent), transparent 60%);
  transform: translateZ(0);
  will-change: transform;
}


a{ color:inherit; text-decoration:none; }
.container{
  width:min(var(--max), calc(100% - 40px));
  margin:0 auto;
}

.skip{
  position:absolute;
  left:-999px; top:12px;
  padding:10px 12px;
  background: var(--panel);
  border:1px solid var(--border);
  border-radius: 12px;
}
.skip:focus{ left:12px; outline: 3px solid var(--focus); }

/* Header */
.header{
  position: sticky;
  top:0;
  z-index: 30;
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  background: color-mix(in oklab, var(--bg) 84%, transparent);
  border-bottom: 1px solid var(--border);
}
.header__inner{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap: 16px;
  padding: 14px 0;
}

.brand{
  display:flex;
  gap: 12px;
  align-items:center;
  min-width: 220px;
}
.brand__mark{
  width: 36px; height:36px;
  border-radius: 12px;
  background:
    radial-gradient(14px 14px at 20% 20%, rgba(255,255,255,.35), transparent 60%),
    radial-gradient(18px 18px at 80% 80%, rgba(255,255,255,.22), transparent 60%),
    linear-gradient(135deg, var(--accent), var(--accent2));
  box-shadow: 0 10px 30px color-mix(in oklab, var(--accent) 30%, transparent);
}
.brand__text{ display:flex; flex-direction:column; line-height:1.1; }
.brand__name{ font-family: Manrope, Inter, system-ui; font-weight: 800; letter-spacing: .02em; }
.brand__tag{ font-size: 12px; color: var(--muted); margin-top: 2px; }

.nav{
  display:flex;
  gap: 16px;
  align-items:center;
}
.nav__link{
  font-size: 14px;
  color: var(--muted);
  padding: 8px 10px;
  border-radius: 12px;
  transition: .2s ease;
}
.nav__link:hover{
  background: var(--panel2);
  color: var(--text);
}

.header__actions{
  display:flex;
  align-items:center;
  gap: 10px;
}
.theme{
  display:flex;
  gap: 10px;
  align-items:center;
  padding: 10px 12px;
  border-radius: 14px;
  border: 1px solid var(--border);
  background: var(--panel2);
  color: var(--text);
  cursor:pointer;
  transition: .2s ease;
}
.theme:hover{ transform: translateY(-1px); }
.theme:focus{ outline: 3px solid var(--focus); outline-offset: 2px; }
.theme__icon{ opacity: .9; font-size: 14px; }
.theme__label{ font-size: 13px; color: var(--muted); }

.burger{
  display:none;
  width: 44px; height: 44px;
  border-radius: 14px;
  border: 1px solid var(--border);
  background: var(--panel2);
  color: var(--text);
  align-items:center;
  justify-content:center;
  cursor:pointer;
}
.burger span{
  display:block;
  width: 18px;
  height: 2px;
  background: currentColor;
  margin: 3px 0;
  opacity: .85;
}

.mobile{
  border-top: 1px solid var(--border);
  background: color-mix(in oklab, var(--bg) 88%, transparent);
}
.mobile__inner{
  display:flex;
  gap: 12px;
  padding: 12px 0 16px;
  flex-wrap: wrap;
}
.mobile__link{
  padding: 10px 12px;
  border: 1px solid var(--border);
  background: var(--panel2);
  border-radius: 14px;
  color: var(--muted);
}

/* Buttons */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap: 10px;
  padding: 12px 16px;
  border-radius: 16px;
  border: 1px solid var(--border);
  background: var(--panel2);
  color: var(--text);
  font-weight: 600;
  font-size: 14px;
  transition: .22s ease;
  white-space:nowrap;
}
.btn:hover{ transform: translateY(-1px); }
.btn:focus{ outline: 3px solid var(--focus); outline-offset: 2px; }

.btn--primary{
  border: none;
  background: linear-gradient(135deg, var(--accent), var(--accent2));
  color: var(--btnText);
  box-shadow: 0 18px 45px color-mix(in oklab, var(--accent) 25%, transparent);
}
.btn--ghost{
  background: transparent;
}

/* Hero */
.hero{ padding: 52px 0 10px; position:relative; }
.hero__grid{
  display:grid;
  grid-template-columns: 1.15fr .85fr;
  gap: 28px;
  align-items: start;
}
.badge{
  display:inline-flex;
  align-items:center;
  gap: 10px;
  padding: 10px 12px;
  border-radius: 999px;
  border: 1px solid var(--border);
  background: var(--panel2);
  color: var(--muted);
  font-size: 13px;
}
.dot{
  width: 8px; height: 8px; border-radius: 99px;
  background: linear-gradient(135deg, var(--accent), var(--accent2));
  box-shadow: 0 0 0 6px color-mix(in oklab, var(--accent) 16%, transparent);
}

.h1{
  margin: 18px 0 10px;
  font-family: Manrope, Inter, system-ui;
  font-size: clamp(34px, 4.2vw, 54px);
  line-height: 1.02;
  letter-spacing: -0.03em;
}
.lead{
  margin: 0 0 18px;
  color: var(--muted);
  font-size: 16px;
  line-height: 1.6;
  max-width: 56ch;
}

.hero__cta{ display:flex; gap: 12px; flex-wrap: wrap; margin-bottom: 22px; }

.trust{
  display:grid;
  grid-template-columns: repeat(3, minmax(0,1fr));
  gap: 12px;
}
.trust__item{
  border: 1px solid var(--border);
  background: var(--panel2);
  border-radius: 18px;
  padding: 14px;
}
.trust__title{
  font-weight: 700;
  font-size: 13px;
  letter-spacing: .02em;
}
.trust__text{
  margin-top: 6px;
  color: var(--muted);
  font-size: 13px;
  line-height: 1.35;
}

.hero__visual{
  position:relative;
  min-height: 420px;
}
.gridshine{
  position:absolute;
  inset: -10px;
  background-image:
    linear-gradient(to right, var(--grid) 1px, transparent 1px),
    linear-gradient(to bottom, var(--grid) 1px, transparent 1px);
  background-size: 52px 52px;
  mask-image: radial-gradient(circle at 50% 45%, rgba(0,0,0,.85) 0%, transparent 60%);
  opacity: .6;
  pointer-events:none;
  z-index: 0;
}
.orb{
  position:absolute;
  border-radius: 999px;
  filter: blur(24px);
  opacity: .35;
  pointer-events:none;
  z-index: 0;
}
.orb--a{
  width: 260px; height: 260px;
  left: -30px; top: 40px;
  background: color-mix(in oklab, var(--accent) 55%, transparent);
}
.orb--b{
  width: 320px; height: 320px;
  right: -40px; bottom: -20px;
  background: color-mix(in oklab, var(--accent2) 55%, transparent);
}

.glass{
  position:relative;
  border-radius: var(--radius2);
  background: color-mix(in oklab, var(--panel) 95%, transparent);
  border: 1px solid var(--border);
  box-shadow: var(--shadow);
  overflow:hidden;
}
.card--big{ padding: 18px; }
.card__top{ display:flex; justify-content:space-between; gap: 10px; }
.chip{
  padding: 8px 10px;
  border-radius: 999px;
  border: 1px solid var(--border);
  background: var(--panel2);
  font-size: 12px;
  color: var(--text);
}
.chip--muted{ color: var(--muted); }

.card__mid{ margin-top: 16px; display:grid; gap: 12px; }
.meter__label{ font-size: 13px; color: color-mix(in oklab, var(--text) 78%, var(--muted)); margin-bottom: 6px; font-weight: 700; letter-spacing: .01em; }
.meter__bar{
  height: 10px;
  border-radius: 999px;
  background: color-mix(in oklab, var(--panel2) 90%, transparent);
  border: 1px solid var(--border);
  overflow:hidden;
}
.meter__bar span{
  display:block;
  height: 100%;
  border-radius: 999px;
  background: linear-gradient(90deg, var(--accent), var(--accent2));
}
.card__bot{
  margin-top: 18px;
  display:grid;
  gap: 12px;
}
.mini{
  border: 1px solid var(--border);
  background: var(--panel2);
  border-radius: 18px;
  padding: 12px 12px;
}
.mini__k{ font-size: 12px; color: var(--muted); }
.mini__v{ margin-top: 4px; font-size: 13px; }

/* Sections */
.section{ padding: 56px 0; }
.section--alt{
  background: linear-gradient(180deg, color-mix(in oklab, var(--panel2) 65%, transparent), transparent 60%);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}
.section__head{ margin-bottom: 20px; position: relative; z-index: 2; }
.h2{
  margin: 0 0 10px;
  font-family: Manrope, Inter, system-ui;
  font-size: clamp(24px, 2.6vw, 34px);
  letter-spacing: -0.02em;
}
.sub{
  margin:0;
  color: var(--muted);
  line-height: 1.6;
  max-width: 80ch;
}

.cards{
  display:grid;
  grid-template-columns: repeat(3, minmax(0,1fr));
  gap: 14px;
}
.card{
  border: 1px solid var(--border);
  background: var(--panel2);
  border-radius: var(--radius);
  padding: 18px;
  transition: .2s ease;
}
.card:hover{ transform: translateY(-2px); box-shadow: 0 18px 50px color-mix(in oklab, var(--accent) 10%, transparent); }
.h3{
  margin: 0 0 8px;
  font-family: Manrope, Inter, system-ui;
  font-size: 16px;
  letter-spacing: -0.01em;
}
.card p{ margin: 0; color: var(--muted); line-height: 1.55; font-size: 14px; }

/* Split */
.split{
  display:grid;
  grid-template-columns: 1fr 1fr;
  gap: 14px;
}
.list{ display:grid; gap: 12px; }
.list__item{
  border: 1px solid var(--border);
  background: var(--panel2);
  border-radius: var(--radius);
  padding: 16px;
}
.list__title{ font-weight: 800; font-size: 14px; font-family: Manrope, Inter, system-ui; }
.list__text{ margin-top: 6px; color: var(--muted); line-height: 1.55; font-size: 14px; }

.panel{
  border: 1px solid var(--border);
  background: color-mix(in oklab, var(--panel) 90%, transparent);
  border-radius: var(--radius2);
  padding: 18px;
  box-shadow: var(--shadow);
}
.panel__title{
  font-family: Manrope, Inter, system-ui;
  font-weight: 800;
  font-size: 16px;
  margin-bottom: 10px;
}
.bullets{
  margin: 0;
  padding-left: 18px;
  color: var(--muted);
  line-height: 1.65;
}
.panel__note{
  margin-top: 16px;
  border-top: 1px solid var(--border);
  padding-top: 14px;
  color: var(--muted);
}
.panel__badge{
  display:inline-flex;
  padding: 6px 10px;
  border-radius: 999px;
  background: linear-gradient(135deg, var(--accent), var(--accent2));
  color: var(--btnText);
  font-weight: 800;
  font-size: 12px;
  margin-right: 10px;
}

/* Steps */
.steps{
  list-style:none;
  padding: 0;
  margin: 0;
  display:grid;
  gap: 10px;
}
.step{
  display:flex;
  gap: 16px;
  align-items:flex-start;
  border: 1px solid var(--border);
  background: var(--panel2);
  border-radius: var(--radius);
  padding: 16px;
}
.step__n{
  width: 52px;
  height: 36px;
  display:flex;
  align-items:center;
  justify-content:center;
  border-radius: 14px;
  background: linear-gradient(135deg, var(--accent), var(--accent2));
  color: var(--btnText);
  font-family: Manrope, Inter, system-ui;
  font-weight: 900;
  letter-spacing: .06em;
}
.step__t{ font-weight: 900; font-family: Manrope, Inter, system-ui; }
.step__d{ margin-top: 6px; color: var(--muted); line-height: 1.55; font-size: 14px; }

/* Quote */
.quote{
  border: 1px solid var(--border);
  background: color-mix(in oklab, var(--panel) 90%, transparent);
  border-radius: var(--radius2);
  padding: 22px 22px 18px;
  position:relative;
  box-shadow: var(--shadow);
}
.quote__mark{
  position:absolute;
  top: 10px; left: 14px;
  font-family: Manrope, Inter, system-ui;
  font-size: 48px;
  opacity: .25;
}
.quote__text{
  font-family: Manrope, Inter, system-ui;
  font-size: 18px;
  line-height: 1.4;
  letter-spacing: -0.02em;
  margin-left: 10px;
}
.quote__meta{
  margin-top: 12px;
  color: var(--muted);
  font-size: 13px;
  margin-left: 10px;
}

/* Contact */
.contact{
  display:grid;
  grid-template-columns: 1.2fr .8fr;
  gap: 14px;
  align-items:start;
}
.form{
  border: 1px solid var(--border);
  background: var(--panel2);
  border-radius: var(--radius2);
  padding: 18px;
}
.form__row{
  display:grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
}
.field{ display:flex; flex-direction:column; gap: 8px; margin-bottom: 12px; }
.field span{ font-size: 12px; color: var(--muted); }
input,textarea{
  width: 100%;
  padding: 12px 14px;
  border-radius: 16px;
  border: 1px solid var(--border);
  background: color-mix(in oklab, var(--bg) 72%, transparent);
  color: var(--text);
  outline:none;
  transition: .2s ease;
}
html[data-theme="light"] input, html[data-theme="light"] textarea{
  background: #fff;
}
input:focus, textarea:focus{ outline: 3px solid var(--focus); border-color: transparent; }

.form__foot{
  display:flex;
  align-items:flex-start;
  gap: 14px;
  margin-top: 6px;
  flex-wrap: wrap;
}
.note{
  color: var(--muted);
  font-size: 12px;
  line-height: 1.5;
  max-width: 70ch;
}
.mono{ font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", "Courier New", monospace; }

.aside__card{
  border: 1px solid var(--border);
  background: color-mix(in oklab, var(--panel) 90%, transparent);
  border-radius: var(--radius2);
  padding: 18px;
  box-shadow: var(--shadow);
}
.aside__title{ font-family: Manrope, Inter, system-ui; font-weight: 900; }
.aside__text{ margin-top: 12px; display:grid; gap: 10px; color: var(--muted); font-size: 14px; }
.kv{ display:flex; justify-content:space-between; gap: 12px; }
.kv span:last-child{ color: var(--text); opacity: .85; }
.aside__hint{
  margin-top: 14px;
  border-top: 1px solid var(--border);
  padding-top: 12px;
  color: var(--muted);
  font-size: 12px;
  line-height: 1.55;
}

/* Footer */
.footer{
  padding: 26px 0 42px;
  border-top: 1px solid var(--border);
  background: color-mix(in oklab, var(--bg) 92%, transparent);
}
.footer__inner{
  display:flex;
  justify-content:space-between;
  align-items:flex-end;
  gap: 16px;
}
.footer__brand{ font-family: Manrope, Inter, system-ui; font-weight: 900; letter-spacing:.02em; }
.footer__small{ color: var(--muted); font-size: 12px; margin-top: 6px; }

/* Reveal */
.reveal{
  opacity: 0;
  transform: translateY(10px);
}
.reveal.is-in{
  opacity: 1;
  transform: translateY(0);
  transition: opacity .55s ease, transform .55s ease;
}

/* Toast */
.toast{
  position: fixed;
  inset: auto 18px 18px auto;
  z-index: 60;
}
.toast__inner{
  width: min(380px, calc(100vw - 36px));
  border-radius: 18px;
  border: 1px solid var(--border);
  background: color-mix(in oklab, var(--bg) 86%, transparent);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  box-shadow: var(--shadow);
  padding: 14px;
}
.toast__title{ font-family: Manrope, Inter, system-ui; font-weight: 900; }
.toast__text{ margin-top: 6px; color: var(--muted); font-size: 13px; line-height: 1.45; }
.toast__btn{
  margin-top: 10px;
  width: 100%;
  padding: 10px 12px;
  border-radius: 14px;
  border: none;
  cursor:pointer;
  font-weight: 800;
  background: linear-gradient(135deg, var(--accent), var(--accent2));
  color: var(--btnText);
}

/* Responsive */
@media (max-width: 980px){
  .hero__grid{ grid-template-columns: 1fr; }
  .hero__visual{ min-height: 360px; }
  .trust{ grid-template-columns: 1fr; }
  .cards{ grid-template-columns: 1fr 1fr; }
  .split{ grid-template-columns: 1fr; }
  .contact{ grid-template-columns: 1fr; }
}

@media (max-width: 760px){
  .nav{ display:none; }
  .burger{ display:flex; }
  .header__actions{ gap: 8px; }
  .brand{ min-width: auto; }
  .cards{ grid-template-columns: 1fr; }
  .form__row{ grid-template-columns: 1fr; }
}


/* Timeline / Capabilities / Industries */
.timeline{
  display:grid;
  grid-template-columns: repeat(2, minmax(0,1fr));
  gap: 14px;
}
.tcard{
  border: 1px solid var(--border);
  background: var(--panel2);
  border-radius: var(--radius);
  padding: 18px;
}
.tcard__k{
  display:inline-flex;
  padding: 6px 10px;
  border-radius: 999px;
  background: color-mix(in oklab, var(--panel) 80%, transparent);
  border: 1px solid var(--border);
  color: var(--muted);
  font-size: 12px;
}
.tcard__t{
  margin-top: 10px;
  font-family: Manrope, Inter, system-ui;
  font-weight: 900;
  letter-spacing: -0.01em;
}
.tcard__d{
  margin-top: 8px;
  color: var(--muted);
  font-size: 14px;
  line-height: 1.6;
}

.chips{
  margin-top: 16px;
  display:flex;
  flex-wrap: wrap;
  gap: 10px;
}
.chip2{
  padding: 10px 12px;
  border-radius: 999px;
  border: 1px solid var(--border);
  background: var(--panel2);
  color: var(--muted);
  font-size: 13px;
}

.capgrid{
  display:grid;
  grid-template-columns: repeat(2, minmax(0,1fr));
  gap: 14px;
}
.cap{
  border: 1px solid var(--border);
  background: color-mix(in oklab, var(--panel) 85%, transparent);
  border-radius: var(--radius2);
  padding: 18px;
  box-shadow: var(--shadow);
}
.cap__top{
  display:flex;
  align-items:flex-start;
  justify-content:space-between;
  gap: 10px;
}
.cap__title{
  font-family: Manrope, Inter, system-ui;
  font-weight: 900;
}
.cap__tag{
  padding: 8px 10px;
  border-radius: 999px;
  background: linear-gradient(135deg, var(--accent), var(--accent2));
  color: var(--btnText);
  font-weight: 900;
  font-size: 12px;
  white-space: nowrap;
}
.cap__text{
  margin: 10px 0 10px;
  color: var(--muted);
  line-height: 1.6;
  font-size: 14px;
}
.cap__list{
  margin: 0;
  padding-left: 18px;
  color: var(--muted);
  line-height: 1.7;
  font-size: 13px;
}

.industries{
  display:grid;
  grid-template-columns: repeat(3, minmax(0,1fr));
  gap: 12px;
}
.industry{
  border: 1px solid var(--border);
  background: var(--panel2);
  border-radius: 18px;
  padding: 14px;
  color: var(--muted);
  font-weight: 700;
  font-size: 13px;
}

.disclaimer{
  margin-top: 14px;
  border: 1px solid var(--border);
  background: color-mix(in oklab, var(--panel) 90%, transparent);
  border-radius: var(--radius2);
  padding: 16px;
  color: var(--muted);
  line-height: 1.6;
  box-shadow: var(--shadow);
}

@media (max-width: 980px){
  .timeline{ grid-template-columns: 1fr; }
  .capgrid{ grid-template-columns: 1fr; }
}
@media (max-width: 760px){
  .industries{ grid-template-columns: 1fr; }
}

/* Layering fix (decor behind content) */
.hero__visual{ position: relative; }
.glass{ position: relative; z-index: 2; }
.orb{ z-index: 0; }
.gridshine{ z-index: 0; }


/* Toast (success popup) — improved for mobile */
.toast{
  position: fixed;
  left: 50%;
  bottom: 18px;
  transform: translateX(-50%);
  width: min(520px, calc(100vw - 24px));
  z-index: 9999;
  border-radius: 18px;
  padding: 14px 14px;
  display: flex;
  align-items: center;
  gap: 12px;
  background: rgba(20, 22, 30, .92);
  border: 1px solid rgba(255,255,255,.14);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  box-shadow: 0 18px 60px rgba(0,0,0,.35);
  opacity: 0;
  pointer-events: none;
  transition: opacity .25s ease, transform .25s ease;
}
.toast.show{
  opacity: 1;
  pointer-events: auto;
  transform: translateX(-50%) translateY(-4px);
}
.toast__icon{
  flex: 0 0 auto;
  width: 38px;
  height: 38px;
  border-radius: 12px;
  display: grid;
  place-items: center;
  background: linear-gradient(135deg, rgba(78,168,255,.22), rgba(139,92,246,.20));
  border: 1px solid rgba(255,255,255,.10);
}
.toast__msg{
  flex: 1 1 auto;
  font-size: 14px;
  line-height: 1.25;
  color: rgba(255,255,255,.92);
}
.toast__close{
  flex: 0 0 auto;
  border: 1px solid rgba(255,255,255,.14);
  background: rgba(255,255,255,.06);
  color: rgba(255,255,255,.9);
  border-radius: 12px;
  padding: 10px 12px;
  cursor: pointer;
}
@media (max-width: 420px){
  .toast{ bottom: 12px; padding: 12px; border-radius: 16px; }
  .toast__msg{ font-size: 13px; }
  .toast__close{ padding: 9px 10px; }
}