/* ==========================================================================
   BrillixSoft — core stylesheet
   Design tokens → base → layout → components → utilities → responsive
   ========================================================================== */

/* ---------- 1. Tokens ---------------------------------------------------- */
:root {
  /* Brand — two tracks: cobalt = business, amber = students */
  --ink:        #0A0F1F;
  --ink-2:      #111a33;
  --ink-3:      #1b2544;
  --cobalt:     #3B4BF5;
  --cobalt-600: #2C39D6;
  --cobalt-100: #E5E8FF;
  --cyan:       #22D3EE;
  --amber:      #FFB020;
  --amber-100:  #FFF2D9;
  --paper:      #F5F7FB;
  --white:      #FFFFFF;
  --slate:      #5A6785;
  --slate-2:    #8A96AF;
  --line:       #E3E8F2;
  --line-dark:  rgba(255,255,255,.12);

  --grad-cobalt: linear-gradient(135deg, #3B4BF5 0%, #6D5BF7 55%, #22D3EE 100%);
  --grad-amber:  linear-gradient(135deg, #FFB020 0%, #FF7A45 100%);
  --grad-ink:    linear-gradient(160deg, #0A0F1F 0%, #16204a 60%, #0A0F1F 100%);

  /* Type */
  --font-display: 'Sora', system-ui, sans-serif;
  --font-body:    'Manrope', system-ui, sans-serif;
  --font-mono:    'JetBrains Mono', ui-monospace, monospace;

  /* Space + shape */
  --r-sm: 10px;
  --r-md: 16px;
  --r-lg: 24px;
  --r-xl: 32px;
  --shadow-sm: 0 2px 8px rgba(10,15,31,.06);
  --shadow-md: 0 12px 30px rgba(10,15,31,.09);
  --shadow-lg: 0 26px 60px rgba(10,15,31,.14);
  --shadow-glow: 0 18px 44px rgba(59,75,245,.28);
  --nav-h: 76px;
  --ease: cubic-bezier(.22,.8,.3,1);
}

/* ---------- 2. Base ------------------------------------------------------ */
*, *::before, *::after { box-sizing: border-box; }

html { scroll-behavior: smooth; scroll-padding-top: calc(var(--nav-h) + 16px); }

body {
  margin: 0;
  font-family: var(--font-body);
  font-size: 1.0125rem;
  line-height: 1.7;
  color: var(--slate);
  background: var(--white);
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-display);
  color: var(--ink);
  font-weight: 700;
  line-height: 1.15;
  letter-spacing: -.02em;
  margin: 0 0 .6em;
}

h1 { font-size: clamp(2.3rem, 5.2vw, 3.9rem); letter-spacing: -.035em; }
h2 { font-size: clamp(1.85rem, 3.6vw, 2.75rem); letter-spacing: -.03em; }
h3 { font-size: clamp(1.2rem, 2vw, 1.45rem); }
h4 { font-size: 1.08rem; }

p { margin: 0 0 1rem; }
p:last-child { margin-bottom: 0; }

a { color: var(--cobalt); text-decoration: none; transition: color .2s var(--ease); }
a:hover { color: var(--cobalt-600); }

img, svg { max-width: 100%; height: auto; display: block; }

:focus-visible {
  outline: 3px solid var(--cobalt);
  outline-offset: 3px;
  border-radius: 4px;
}

::selection { background: var(--cobalt); color: #fff; }

.skip-link {
  position: absolute; left: 12px; top: -60px; z-index: 2000;
  background: var(--ink); color: #fff; padding: .7rem 1.1rem;
  border-radius: var(--r-sm); font-weight: 700;
  transition: top .2s var(--ease);
}
.skip-link:focus { top: 12px; color: #fff; }

/* ---------- 3. Layout helpers -------------------------------------------- */
.shell { width: min(1200px, 92%); margin-inline: auto; }
.shell-narrow { width: min(880px, 92%); margin-inline: auto; }

.band { padding: clamp(4rem, 8vw, 6.5rem) 0; }
.band--tight { padding: clamp(2.75rem, 5vw, 4rem) 0; }
.band--paper { background: var(--paper); }
.band--ink { background: var(--grad-ink); color: rgba(255,255,255,.74); }
.band--ink h2, .band--ink h3, .band--ink h4 { color: #fff; }

.grid { display: grid; gap: 1.5rem; }
.g-2 { grid-template-columns: repeat(2, 1fr); }
.g-3 { grid-template-columns: repeat(3, 1fr); }
.g-4 { grid-template-columns: repeat(4, 1fr); }

/* Section heading block */
.eyebrow {
  font-family: var(--font-mono);
  font-size: .74rem;
  font-weight: 600;
  letter-spacing: .18em;
  text-transform: uppercase;
  color: var(--cobalt);
  display: inline-flex; align-items: center; gap: .55rem;
  margin-bottom: .9rem;
}
.eyebrow::before { content: ""; width: 26px; height: 2px; background: currentColor; border-radius: 2px; }
.eyebrow--amber { color: var(--amber); }
.eyebrow--light { color: var(--cyan); }

.section-head { max-width: 720px; margin-bottom: 3rem; }
.section-head.center { margin-inline: auto; text-align: center; }
.section-head p { font-size: 1.06rem; }

.lede { font-size: clamp(1.02rem, 1.6vw, 1.16rem); color: var(--slate); }

/* ---------- 4. Buttons --------------------------------------------------- */
.btn {
  --btn-bg: var(--cobalt);
  --btn-fg: #fff;
  display: inline-flex; align-items: center; justify-content: center; gap: .6rem;
  font-family: var(--font-display);
  font-weight: 600; font-size: .95rem;
  padding: .88rem 1.6rem;
  border-radius: 999px;
  border: 2px solid transparent;
  background: var(--btn-bg); color: var(--btn-fg);
  cursor: pointer;
  transition: transform .25s var(--ease), box-shadow .25s var(--ease), background .2s var(--ease), color .2s var(--ease);
  white-space: nowrap;
}
.btn:hover { transform: translateY(-2px); color: var(--btn-fg); }
.btn-primary { background: var(--grad-cobalt); box-shadow: var(--shadow-glow); }
.btn-primary:hover { box-shadow: 0 22px 52px rgba(59,75,245,.4); }
.btn-amber { background: var(--grad-amber); color: #2A1B00; box-shadow: 0 18px 44px rgba(255,176,32,.34); }
.btn-amber:hover { color: #2A1B00; box-shadow: 0 22px 52px rgba(255,176,32,.45); }
.btn-ghost { background: transparent; color: var(--ink); border-color: var(--line); }
.btn-ghost:hover { border-color: var(--cobalt); color: var(--cobalt); background: var(--cobalt-100); }
.btn-light { background: rgba(255,255,255,.1); color: #fff; border-color: rgba(255,255,255,.28); backdrop-filter: blur(8px); }
.btn-light:hover { background: #fff; color: var(--ink); border-color: #fff; }
.btn-sm { padding: .62rem 1.15rem; font-size: .86rem; }
.btn-block { width: 100%; }

.link-arrow {
  font-family: var(--font-display); font-weight: 600; font-size: .92rem;
  display: inline-flex; align-items: center; gap: .45rem;
}
.link-arrow i { transition: transform .25s var(--ease); }
.link-arrow:hover i { transform: translateX(5px); }

/* ---------- 5. Header / nav ---------------------------------------------- */
.site-header {
  position: sticky; top: 0; z-index: 1000;
  background: rgba(255,255,255,.88);
  backdrop-filter: saturate(160%) blur(14px);
  border-bottom: 1px solid transparent;
  transition: box-shadow .3s var(--ease), border-color .3s var(--ease);
}
.site-header.is-stuck { box-shadow: var(--shadow-sm); border-bottom-color: var(--line); }

.nav {
  height: var(--nav-h);
  display: flex; align-items: center; justify-content: space-between; gap: 1rem;
}

.brand { display: inline-flex; align-items: center; gap: .65rem; }
.brand img { width: 38px; height: 38px; }
.brand-name {
  font-family: var(--font-display); font-weight: 800;
  font-size: 1.32rem; letter-spacing: -.03em; color: var(--ink); line-height: 1;
}
.brand-name span { color: var(--cobalt); }
.brand-tag {
  display: block; font-family: var(--font-mono); font-size: .58rem;
  letter-spacing: .22em; text-transform: uppercase; color: var(--slate-2); margin-top: 3px;
}

.nav-links { display: flex; align-items: center; gap: .3rem; list-style: none; margin: 0; padding: 0; }
.nav-links a {
  display: block; padding: .55rem .85rem; border-radius: 999px;
  font-family: var(--font-display); font-weight: 600; font-size: .92rem;
  color: var(--ink);
}
.nav-links a:hover { background: var(--paper); color: var(--cobalt); }
.nav-links a.active { color: var(--cobalt); background: var(--cobalt-100); }

.nav-cta { display: flex; align-items: center; gap: .6rem; }

.nav-toggle {
  display: none; width: 46px; height: 46px; border-radius: 12px;
  border: 1px solid var(--line); background: #fff; color: var(--ink);
  font-size: 1.15rem; cursor: pointer; align-items: center; justify-content: center;
}

/* Mobile drawer */
.drawer {
  position: fixed; inset: 0 0 0 auto; width: min(360px, 86%);
  background: #fff; z-index: 1200; padding: 1.5rem;
  transform: translateX(102%); transition: transform .38s var(--ease);
  display: flex; flex-direction: column; gap: .35rem;
  box-shadow: -20px 0 60px rgba(10,15,31,.18); overflow-y: auto;
}
.drawer.open { transform: translateX(0); }
.drawer-head { display: flex; align-items: center; justify-content: space-between; margin-bottom: 1.2rem; }
.drawer a.drawer-link {
  padding: .85rem .9rem; border-radius: 12px;
  font-family: var(--font-display); font-weight: 600; color: var(--ink);
  display: flex; align-items: center; justify-content: space-between;
}
.drawer a.drawer-link:hover, .drawer a.drawer-link.active { background: var(--paper); color: var(--cobalt); }
.drawer-foot { margin-top: auto; padding-top: 1.5rem; display: grid; gap: .6rem; }
.scrim {
  position: fixed; inset: 0; background: rgba(10,15,31,.5);
  backdrop-filter: blur(3px); z-index: 1100; opacity: 0; visibility: hidden;
  transition: opacity .3s var(--ease), visibility .3s var(--ease);
}
.scrim.open { opacity: 1; visibility: visible; }

/* ---------- 6. Hero ------------------------------------------------------ */
.hero {
  position: relative; overflow: hidden;
  background: var(--grad-ink); color: rgba(255,255,255,.76);
  padding: clamp(3.5rem, 7vw, 6rem) 0 clamp(4rem, 8vw, 7rem);
}
.hero::before {
  content: ""; position: absolute; inset: 0;
  background-image:
    linear-gradient(rgba(255,255,255,.045) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,.045) 1px, transparent 1px);
  background-size: 62px 62px;
  mask-image: radial-gradient(ellipse 90% 70% at 50% 30%, #000 40%, transparent 100%);
  pointer-events: none;
}
.hero::after {
  content: ""; position: absolute; width: 640px; height: 640px; right: -180px; top: -220px;
  background: radial-gradient(circle, rgba(59,75,245,.45) 0%, transparent 65%);
  filter: blur(30px); pointer-events: none;
}
.hero .shell { position: relative; z-index: 2; }
.hero h1 { color: #fff; }
.hero h1 .accent {
  background: linear-gradient(120deg, #7C8BFF 0%, #22D3EE 100%);
  -webkit-background-clip: text; background-clip: text; color: transparent;
}
.hero-grid { display: grid; grid-template-columns: 1.05fr .95fr; gap: 3.5rem; align-items: center; }
.hero-copy p { font-size: 1.09rem; max-width: 54ch; }
.hero-actions { display: flex; flex-wrap: wrap; gap: .8rem; margin-top: 2rem; }

.hero-badge {
  display: inline-flex; align-items: center; gap: .55rem;
  font-family: var(--font-mono); font-size: .74rem; letter-spacing: .12em; text-transform: uppercase;
  background: rgba(255,255,255,.07); border: 1px solid var(--line-dark);
  color: #fff; padding: .45rem .95rem; border-radius: 999px; margin-bottom: 1.4rem;
}
.hero-badge .dot {
  width: 7px; height: 7px; border-radius: 50%; background: var(--cyan);
  box-shadow: 0 0 0 0 rgba(34,211,238,.7); animation: ping 2s infinite;
}
@keyframes ping {
  0%   { box-shadow: 0 0 0 0 rgba(34,211,238,.7); }
  70%  { box-shadow: 0 0 0 9px rgba(34,211,238,0); }
  100% { box-shadow: 0 0 0 0 rgba(34,211,238,0); }
}

.hero-stats {
  display: grid; grid-template-columns: repeat(3, 1fr); gap: 1rem;
  margin-top: 2.75rem; padding-top: 2rem; border-top: 1px solid var(--line-dark);
}
.hero-stats .num {
  font-family: var(--font-display); font-size: clamp(1.6rem, 3vw, 2.1rem);
  font-weight: 800; color: #fff; line-height: 1;
}
.hero-stats .lbl {
  font-family: var(--font-mono); font-size: .68rem; letter-spacing: .12em;
  text-transform: uppercase; color: var(--slate-2); margin-top: .5rem;
}

/* Signature: orbit */
.orbit { position: relative; width: 100%; aspect-ratio: 1; max-width: 460px; margin-inline: auto; }
.orbit-ring {
  position: absolute; inset: 0; border-radius: 50%;
  border: 1px dashed rgba(255,255,255,.16);
}
.orbit-ring.r2 { inset: 15%; border-style: solid; border-color: rgba(255,255,255,.09); }
.orbit-spin { position: absolute; inset: 0; animation: spin 34s linear infinite; }
@keyframes spin { to { transform: rotate(360deg); } }

.orbit-core {
  position: absolute; left: 50%; top: 50%; transform: translate(-50%,-50%);
  width: 42%; aspect-ratio: 1; border-radius: 50%;
  background: rgba(255,255,255,.05); border: 1px solid var(--line-dark);
  backdrop-filter: blur(10px);
  display: grid; place-items: center; text-align: center; padding: 1rem;
  box-shadow: inset 0 0 40px rgba(59,75,245,.24);
}
.orbit-core .core-num {
  font-family: var(--font-display); font-size: clamp(1.5rem,3.4vw,2.1rem); font-weight: 800; color: #fff; line-height: 1;
}
.orbit-core .core-lbl {
  font-family: var(--font-mono); font-size: .6rem; letter-spacing: .16em;
  text-transform: uppercase; color: var(--cyan); margin-top: .45rem;
}

.orbit-node {
  position: absolute; left: 50%; top: 50%; width: 76px; margin: -38px 0 0 -38px;
  display: grid; place-items: center; gap: .3rem;
  animation: spin-rev 34s linear infinite;
}
@keyframes spin-rev { to { transform: rotate(-360deg); } }
.orbit-node .chip {
  width: 54px; height: 54px; border-radius: 16px; display: grid; place-items: center;
  background: rgba(255,255,255,.08); border: 1px solid var(--line-dark);
  backdrop-filter: blur(8px); color: #fff; font-size: 1.15rem;
  transition: background .25s var(--ease), transform .25s var(--ease);
}
.orbit-node .chip i { color: var(--cyan); }
.orbit-node:hover .chip { background: var(--cobalt); transform: scale(1.1); }
.orbit-node:hover .chip i { color: #fff; }
.orbit-node .tag {
  font-family: var(--font-mono); font-size: .58rem; letter-spacing: .1em;
  text-transform: uppercase; color: rgba(255,255,255,.66); white-space: nowrap;
}

/* ---------- 7. Cards ----------------------------------------------------- */
.card-x {
  background: #fff; border: 1px solid var(--line); border-radius: var(--r-lg);
  padding: 2rem; height: 100%;
  transition: transform .3s var(--ease), box-shadow .3s var(--ease), border-color .3s var(--ease);
  position: relative; overflow: hidden;
}
.card-x:hover { transform: translateY(-6px); box-shadow: var(--shadow-md); border-color: var(--cobalt-100); }
.card-x h3 { margin-bottom: .55rem; }
.card-x p { font-size: .96rem; }

.card-x::after {
  content: ""; position: absolute; left: 0; right: 0; top: 0; height: 3px;
  background: var(--grad-cobalt); transform: scaleX(0); transform-origin: left;
  transition: transform .35s var(--ease);
}
.card-x:hover::after { transform: scaleX(1); }
.card-x.amber::after { background: var(--grad-amber); }

.ico {
  width: 56px; height: 56px; border-radius: 16px; display: grid; place-items: center;
  font-size: 1.35rem; margin-bottom: 1.15rem;
  background: var(--cobalt-100); color: var(--cobalt);
}
.ico.amber { background: var(--amber-100); color: #B87400; }
.ico.cyan { background: #DFF9FE; color: #0E7490; }

.tick-list { list-style: none; margin: 1.1rem 0 0; padding: 0; }
.tick-list li {
  position: relative; padding-left: 1.7rem; margin-bottom: .5rem; font-size: .93rem;
}
.tick-list li::before {
  content: "\f00c"; font-family: "Font Awesome 6 Free"; font-weight: 900;
  position: absolute; left: 0; top: 1px; color: var(--cobalt); font-size: .78rem;
}
.tick-list.amber li::before { color: var(--amber); }
.band--ink .tick-list li::before { color: var(--cyan); }

/* Track cards (business vs student) */
.track {
  border-radius: var(--r-xl); padding: clamp(1.8rem, 3vw, 2.6rem);
  color: #fff; position: relative; overflow: hidden; height: 100%;
  display: flex; flex-direction: column;
}
.track h3 { color: #fff; font-size: clamp(1.35rem, 2.4vw, 1.75rem); }
.track p { color: rgba(255,255,255,.86); }
.track--biz { background: var(--grad-cobalt); }
.track--stu { background: var(--grad-amber); color: #2A1B00; }
.track--stu h3 { color: #2A1B00; }
.track--stu p { color: rgba(42,27,0,.82); }
.track--stu .tick-list li::before { color: #2A1B00; }
.track .tick-list li::before { color: #fff; }
.track .btn { margin-top: auto; align-self: flex-start; }
.track-num {
  font-family: var(--font-mono); font-size: .72rem; letter-spacing: .18em;
  text-transform: uppercase; opacity: .8; margin-bottom: .9rem; display: block;
}

/* ---------- 8. Stats / counters ------------------------------------------ */
.stat-strip { display: grid; grid-template-columns: repeat(4, 1fr); gap: 1.5rem; text-align: center; }
.stat-strip .num {
  font-family: var(--font-display); font-weight: 800;
  font-size: clamp(1.9rem, 4vw, 2.9rem); color: var(--ink); line-height: 1;
}
.band--ink .stat-strip .num { color: #fff; }
.stat-strip .lbl {
  font-family: var(--font-mono); font-size: .7rem; letter-spacing: .14em;
  text-transform: uppercase; color: var(--slate-2); margin-top: .6rem;
}

/* ---------- 9. Process timeline ------------------------------------------ */
.steps { display: grid; grid-template-columns: repeat(5, 1fr); gap: 1.25rem; position: relative; }
.steps::before {
  content: ""; position: absolute; left: 6%; right: 6%; top: 27px; height: 2px;
  background: linear-gradient(90deg, var(--cobalt), var(--cyan), var(--amber));
  opacity: .28;
}
.step { text-align: center; position: relative; }
.step .bullet {
  width: 56px; height: 56px; border-radius: 50%; margin: 0 auto 1.1rem;
  display: grid; place-items: center; background: #fff;
  border: 2px solid var(--cobalt); color: var(--cobalt);
  font-family: var(--font-mono); font-weight: 700; font-size: .88rem;
  position: relative; z-index: 2;
  transition: background .3s var(--ease), color .3s var(--ease), transform .3s var(--ease);
}
.step:hover .bullet { background: var(--cobalt); color: #fff; transform: scale(1.08); }
.step h4 { margin-bottom: .35rem; font-size: 1rem; }
.step p { font-size: .88rem; }

/* ---------- 10. Filter chips + domain grid -------------------------------- */
.filters { display: flex; flex-wrap: wrap; gap: .55rem; justify-content: center; margin-bottom: 2.75rem; }
.chip {
  font-family: var(--font-display); font-weight: 600; font-size: .86rem;
  padding: .55rem 1.15rem; border-radius: 999px;
  border: 1px solid var(--line); background: #fff; color: var(--slate);
  cursor: pointer; transition: all .22s var(--ease);
}
.chip:hover { border-color: var(--cobalt); color: var(--cobalt); }
.chip.active { background: var(--ink); border-color: var(--ink); color: #fff; }

.domain {
  background: #fff; border: 1px solid var(--line); border-radius: var(--r-md);
  padding: 1.5rem; display: flex; gap: 1rem; align-items: flex-start; height: 100%;
  transition: transform .28s var(--ease), box-shadow .28s var(--ease), border-color .28s var(--ease);
}
.domain:hover { transform: translateY(-4px); box-shadow: var(--shadow-md); border-color: var(--cobalt-100); }
.domain .d-ico {
  flex: 0 0 46px; width: 46px; height: 46px; border-radius: 13px;
  display: grid; place-items: center; background: var(--paper); color: var(--cobalt); font-size: 1.05rem;
}
.domain h4 { margin-bottom: .2rem; font-size: .99rem; }
.domain .meta {
  font-family: var(--font-mono); font-size: .68rem; letter-spacing: .1em;
  text-transform: uppercase; color: var(--slate-2);
}
.is-hidden { display: none !important; }

/* ---------- 11. Project cards -------------------------------------------- */
.proj {
  background: #fff; border: 1px solid var(--line); border-radius: var(--r-lg);
  overflow: hidden; height: 100%; display: flex; flex-direction: column;
  transition: transform .3s var(--ease), box-shadow .3s var(--ease);
}
.proj:hover { transform: translateY(-6px); box-shadow: var(--shadow-lg); }
.proj-thumb { position: relative; aspect-ratio: 16/10; overflow: hidden; background: var(--paper); }
.proj-thumb img { width: 100%; height: 100%; object-fit: cover; transition: transform .5s var(--ease); }
.proj:hover .proj-thumb img { transform: scale(1.06); }
.proj-tag {
  position: absolute; top: .85rem; left: .85rem; z-index: 2;
  font-family: var(--font-mono); font-size: .64rem; letter-spacing: .12em; text-transform: uppercase;
  background: rgba(10,15,31,.82); color: #fff; padding: .35rem .7rem; border-radius: 999px;
  backdrop-filter: blur(6px);
}
.proj-body { padding: 1.5rem; display: flex; flex-direction: column; flex: 1; }
.proj-body h3 { font-size: 1.12rem; margin-bottom: .45rem; }
.proj-body p { font-size: .92rem; }
.stack { display: flex; flex-wrap: wrap; gap: .35rem; margin: 1rem 0 1.25rem; }
.stack span {
  font-family: var(--font-mono); font-size: .66rem; letter-spacing: .04em;
  background: var(--paper); border: 1px solid var(--line);
  color: var(--slate); padding: .28rem .6rem; border-radius: 6px;
}
.proj-foot { margin-top: auto; display: flex; align-items: center; justify-content: space-between; gap: 1rem; }
.price { font-family: var(--font-display); font-weight: 700; color: var(--ink); font-size: 1rem; }
.price small { display: block; font-family: var(--font-mono); font-size: .6rem; letter-spacing: .1em; text-transform: uppercase; color: var(--slate-2); font-weight: 500; }

/* ---------- 12. Testimonials --------------------------------------------- */
.quote {
  background: #fff; border: 1px solid var(--line); border-radius: var(--r-lg);
  padding: 2rem; height: 100%; display: flex; flex-direction: column;
}
.quote .stars { color: var(--amber); font-size: .82rem; margin-bottom: 1rem; letter-spacing: .1em; }
.quote blockquote { margin: 0 0 1.5rem; font-size: .99rem; color: var(--ink); line-height: 1.72; }
.who { display: flex; align-items: center; gap: .85rem; margin-top: auto; }
.who img { width: 46px; height: 46px; border-radius: 50%; }
.who .n { font-family: var(--font-display); font-weight: 700; color: var(--ink); font-size: .93rem; line-height: 1.3; }
.who .r { font-family: var(--font-mono); font-size: .66rem; letter-spacing: .08em; text-transform: uppercase; color: var(--slate-2); }

/* ---------- 13. Accordion (FAQ) ------------------------------------------ */
.acc { border: 1px solid var(--line); border-radius: var(--r-md); overflow: hidden; background: #fff; margin-bottom: .8rem; }
.acc-btn {
  width: 100%; text-align: left; background: none; border: 0; cursor: pointer;
  padding: 1.25rem 1.5rem; display: flex; align-items: center; justify-content: space-between; gap: 1rem;
  font-family: var(--font-display); font-weight: 600; font-size: 1rem; color: var(--ink);
}
.acc-btn i { color: var(--cobalt); transition: transform .3s var(--ease); flex: 0 0 auto; }
.acc.open .acc-btn i { transform: rotate(45deg); }
.acc-panel { max-height: 0; overflow: hidden; transition: max-height .35s var(--ease); }
.acc-panel-inner { padding: 0 1.5rem 1.4rem; font-size: .96rem; }

/* ---------- 14. Forms ---------------------------------------------------- */
.field { margin-bottom: 1.1rem; }
.field label {
  display: block; font-family: var(--font-display); font-weight: 600;
  font-size: .85rem; color: var(--ink); margin-bottom: .45rem;
}
.field .req { color: #DC2626; }
.input {
  width: 100%; padding: .85rem 1.05rem; border-radius: 12px;
  border: 1px solid var(--line); background: #fff; color: var(--ink);
  font-family: var(--font-body); font-size: .97rem;
  transition: border-color .2s var(--ease), box-shadow .2s var(--ease);
}
.input::placeholder { color: #A9B3C7; }
.input:focus { outline: none; border-color: var(--cobalt); box-shadow: 0 0 0 4px rgba(59,75,245,.13); }
.input.err { border-color: #DC2626; box-shadow: 0 0 0 4px rgba(220,38,38,.1); }
textarea.input { resize: vertical; min-height: 130px; }
select.input { appearance: none; background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='14' height='14' viewBox='0 0 24 24' fill='none' stroke='%235A6785' stroke-width='3'%3E%3Cpath d='M6 9l6 6 6-6'/%3E%3C/svg%3E"); background-repeat: no-repeat; background-position: right 1.05rem center; padding-right: 2.6rem; }
.err-msg { color: #DC2626; font-size: .8rem; margin-top: .35rem; display: none; }
.field.invalid .err-msg { display: block; }
.form-note { font-size: .82rem; color: var(--slate-2); margin-top: .9rem; }

.form-ok {
  display: none; background: #ECFDF5; border: 1px solid #A7F3D0; color: #065F46;
  border-radius: 12px; padding: 1rem 1.15rem; margin-bottom: 1.2rem; font-size: .93rem;
}
.form-ok.show { display: block; }

/* ---------- 15. Contact rows --------------------------------------------- */
.c-row { display: flex; gap: 1rem; align-items: flex-start; margin-bottom: 1.6rem; }
.c-row .c-ico {
  flex: 0 0 48px; width: 48px; height: 48px; border-radius: 14px;
  display: grid; place-items: center; background: var(--cobalt-100); color: var(--cobalt); font-size: 1.05rem;
}
.band--ink .c-row .c-ico { background: rgba(255,255,255,.08); color: var(--cyan); border: 1px solid var(--line-dark); }
.c-row h4 { margin-bottom: .15rem; font-size: .96rem; }
.c-row a, .c-row p { font-size: .95rem; margin: 0; }

.socials { display: flex; gap: .6rem; flex-wrap: wrap; }
.socials a {
  width: 42px; height: 42px; border-radius: 12px; display: grid; place-items: center;
  background: var(--paper); color: var(--ink); border: 1px solid var(--line);
  transition: all .25s var(--ease);
}
.socials a:hover { background: var(--cobalt); color: #fff; border-color: var(--cobalt); transform: translateY(-3px); }
.band--ink .socials a { background: rgba(255,255,255,.07); border-color: var(--line-dark); color: #fff; }
.band--ink .socials a:hover { background: var(--cobalt); border-color: var(--cobalt); }

/* ---------- 16. CTA banner ----------------------------------------------- */
.cta-band {
  background: var(--grad-cobalt); border-radius: var(--r-xl);
  padding: clamp(2.25rem, 5vw, 3.5rem); color: #fff;
  display: flex; align-items: center; justify-content: space-between; gap: 2rem; flex-wrap: wrap;
  position: relative; overflow: hidden;
}
.cta-band::before {
  content: ""; position: absolute; width: 420px; height: 420px; right: -100px; bottom: -200px;
  background: radial-gradient(circle, rgba(255,255,255,.2), transparent 62%);
}
.cta-band > * { position: relative; z-index: 2; }
.cta-band h2 { color: #fff; margin-bottom: .5rem; }
.cta-band p { color: rgba(255,255,255,.88); margin: 0; max-width: 52ch; }
.cta-actions { display: flex; gap: .75rem; flex-wrap: wrap; }

/* ---------- 17. Page hero (inner pages) ---------------------------------- */
.page-hero {
  background: var(--grad-ink); color: rgba(255,255,255,.74);
  padding: clamp(3rem, 6vw, 4.75rem) 0; position: relative; overflow: hidden;
}
.page-hero::before {
  content: ""; position: absolute; inset: 0;
  background-image:
    linear-gradient(rgba(255,255,255,.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,.04) 1px, transparent 1px);
  background-size: 58px 58px;
  mask-image: radial-gradient(ellipse 80% 90% at 50% 0%, #000 30%, transparent 100%);
}
.page-hero .shell { position: relative; z-index: 2; }
.page-hero h1 { color: #fff; margin-bottom: .75rem; }
.page-hero p { max-width: 62ch; font-size: 1.06rem; }
.crumbs {
  font-family: var(--font-mono); font-size: .72rem; letter-spacing: .1em;
  text-transform: uppercase; color: var(--slate-2); margin-bottom: 1.1rem;
}
.crumbs a { color: var(--cyan); }
.crumbs span { opacity: .5; margin: 0 .45rem; }

/* ---------- 18. Footer --------------------------------------------------- */
.site-footer { background: var(--ink); color: rgba(255,255,255,.62); padding: 4.5rem 0 0; }
.site-footer h5 {
  color: #fff; font-family: var(--font-display); font-size: .96rem;
  letter-spacing: .01em; margin-bottom: 1.15rem;
}
.f-grid { display: grid; grid-template-columns: 1.6fr 1fr 1fr 1.4fr; gap: 2.5rem; }
.f-list { list-style: none; padding: 0; margin: 0; }
.f-list li { margin-bottom: .6rem; }
.f-list a { color: rgba(255,255,255,.62); font-size: .93rem; }
.f-list a:hover { color: var(--cyan); }
.f-brand .brand-name { color: #fff; }
.f-brand p { font-size: .93rem; margin-top: 1rem; max-width: 38ch; }
.f-bottom {
  margin-top: 3.5rem; padding: 1.6rem 0; border-top: 1px solid var(--line-dark);
  display: flex; align-items: center; justify-content: space-between; gap: 1rem; flex-wrap: wrap;
  font-size: .87rem;
}
.f-bottom a { color: rgba(255,255,255,.62); }
.f-bottom a:hover { color: #fff; }

.newsletter { display: flex; gap: .5rem; margin-top: 1rem; }
.newsletter .input {
  background: rgba(255,255,255,.06); border-color: var(--line-dark); color: #fff;
}
.newsletter .input::placeholder { color: rgba(255,255,255,.4); }

/* ---------- 19. Floating WhatsApp + back to top --------------------------- */
.fab {
  position: fixed; right: 20px; z-index: 900;
  width: 54px; height: 54px; border-radius: 50%;
  display: grid; place-items: center; color: #fff; font-size: 1.35rem;
  box-shadow: var(--shadow-lg); border: 0; cursor: pointer;
  transition: transform .25s var(--ease), opacity .25s var(--ease);
}
.fab:hover { transform: translateY(-4px) scale(1.05); color: #fff; }
.fab-wa { bottom: 20px; background: #25D366; }
.fab-top {
  bottom: 86px; background: var(--ink); font-size: 1rem;
  opacity: 0; visibility: hidden;
}
.fab-top.show { opacity: 1; visibility: visible; }

/* ---------- 20. Scroll reveal -------------------------------------------- */
/* Content is visible by default. Only the `js` class (set by an inline
   script in <head>) opts into the hidden-then-reveal behaviour, so the page
   is never blank if JavaScript fails to load. */
.reveal { opacity: 1; transform: none; }
.js .reveal { opacity: 0; transform: translateY(26px); transition: opacity .7s var(--ease), transform .7s var(--ease); }
.js .reveal.in { opacity: 1; transform: none; }
.reveal.d1 { transition-delay: .08s; }
.reveal.d2 { transition-delay: .16s; }
.reveal.d3 { transition-delay: .24s; }
.reveal.d4 { transition-delay: .32s; }

/* ---------- 21. Marquee (tech logos) ------------------------------------- */
.marquee { overflow: hidden; position: relative; mask-image: linear-gradient(90deg, transparent, #000 12%, #000 88%, transparent); }
.marquee-track { display: flex; gap: 3rem; width: max-content; animation: slide 32s linear infinite; }
.marquee:hover .marquee-track { animation-play-state: paused; }
@keyframes slide { to { transform: translateX(-50%); } }
.marquee-item {
  font-family: var(--font-display); font-weight: 700; font-size: 1.05rem;
  color: var(--slate-2); display: flex; align-items: center; gap: .55rem; white-space: nowrap;
}
.marquee-item i { color: var(--cobalt); font-size: 1.2rem; }

/* ---------- 22. Responsive ----------------------------------------------- */
@media (max-width: 1100px) {
  .f-grid { grid-template-columns: 1fr 1fr; gap: 2rem; }
}

@media (max-width: 992px) {
  :root { --nav-h: 68px; }
  .nav-links, .nav-cta .btn { display: none; }
  .nav-toggle { display: flex; }
  .hero-grid { grid-template-columns: 1fr; gap: 2.75rem; }
  .hero-copy { text-align: center; }
  .hero-copy p { margin-inline: auto; }
  .hero-actions { justify-content: center; }
  .orbit { max-width: 360px; }
  .g-3, .g-4 { grid-template-columns: repeat(2, 1fr); }
  .steps { grid-template-columns: repeat(2, 1fr); gap: 2rem; }
  .steps::before { display: none; }
  .stat-strip { grid-template-columns: repeat(2, 1fr); gap: 2rem; }
}

@media (max-width: 700px) {
  body { font-size: .98rem; }
  .g-2, .g-3, .g-4 { grid-template-columns: 1fr; }
  .hero-stats { grid-template-columns: 1fr; gap: 1.4rem; text-align: center; }
  .steps { grid-template-columns: 1fr; }
  .f-grid { grid-template-columns: 1fr; }
  .cta-band { flex-direction: column; align-items: flex-start; text-align: left; }
  .btn { width: 100%; }
  .hero-actions .btn, .cta-actions .btn { width: 100%; }
  .card-x { padding: 1.6rem; }
  .orbit { max-width: 290px; }
  .orbit-node { width: 62px; margin: -31px 0 0 -31px; }
  .orbit-node .chip { width: 44px; height: 44px; font-size: 1rem; border-radius: 13px; }
  .orbit-node .tag { display: none; }
  .f-bottom { flex-direction: column; text-align: center; }
  .fab { width: 48px; height: 48px; right: 14px; }
  .fab-wa { bottom: 14px; }
  .fab-top { bottom: 72px; }
}

@media (max-width: 420px) {
  .brand-tag { display: none; }
  .newsletter { flex-direction: column; }
}

/* ---------- 23. Motion / print ------------------------------------------- */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: .001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: .001ms !important;
    scroll-behavior: auto !important;
  }
  .reveal { opacity: 1; transform: none; }
}

@media print {
  .site-header, .site-footer, .fab, .hero::after { display: none !important; }
  body { color: #000; }
}

/* ---------- 24. MVC additions -------------------------------------------- */

/* Domain cards are now links to the application form. */
a.domain { text-decoration: none; color: inherit; cursor: pointer; }
a.domain:hover { color: inherit; }
a.domain h4 { color: var(--ink); transition: color .2s var(--ease); }
a.domain:hover h4 { color: var(--cobalt); }
.domain-go {
  flex: 0 0 auto; align-self: center; color: var(--slate-2);
  font-size: .85rem; transition: transform .25s var(--ease), color .25s var(--ease);
}
a.domain:hover .domain-go { color: var(--amber); transform: translateX(4px); }
a.domain:focus-visible { outline: 3px solid var(--cobalt); outline-offset: 3px; }

/* Error counterpart to .form-ok */
.form-err {
  display: none; background: #FEF2F2; border: 1px solid #FECACA; color: #991B1B;
  border-radius: 12px; padding: 1rem 1.15rem; margin-bottom: 1.2rem; font-size: .93rem;
}
.form-err.show { display: block; }

/* ASP.NET server-side validation classes mapped onto the existing styles. */
.input.input-validation-error {
  border-color: #DC2626;
  box-shadow: 0 0 0 4px rgba(220,38,38,.1);
}
.field-validation-error { color: #DC2626; font-size: .8rem; margin-top: .35rem; display: block; }
.field-validation-valid { display: none; }

/* ---------- Added: internship terms checkbox + refer-a-friend share buttons ---------- */

.checkbox-field { margin-top: 1.4rem; }
.checkbox-label {
  display: flex;
  align-items: flex-start;
  gap: .7rem;
  cursor: pointer;
  font-size: .88rem;
  line-height: 1.55;
  color: var(--slate);
}
.checkbox-label input[type="checkbox"] {
  flex: 0 0 auto;
  width: 18px;
  height: 18px;
  margin-top: .15rem;
  accent-color: var(--cobalt);
  cursor: pointer;
}
.checkbox-label input.err { outline: 2px solid #DC2626; outline-offset: 2px; border-radius: 4px; }

.share-card { text-align: left; }
.share-buttons {
  display: flex;
  flex-wrap: wrap;
  gap: .75rem;
  margin-top: 1.25rem;
}
.share-btn {
  display: inline-flex;
  align-items: center;
  gap: .55rem;
  padding: .7rem 1.15rem;
  border-radius: var(--r-sm);
  font-family: var(--font-body);
  font-weight: 600;
  font-size: .88rem;
  border: 1px solid var(--line);
  background: var(--white);
  color: var(--ink);
  cursor: pointer;
  transition: transform .18s var(--ease), box-shadow .18s var(--ease), background .18s var(--ease);
  text-decoration: none;
}
.share-btn:hover { transform: translateY(-2px); box-shadow: var(--shadow-sm); }
.share-btn--wa { background: #25D366; border-color: #25D366; color: #fff; }
.share-btn--wa:hover { background: #1FBE5A; color: #fff; }
.share-btn--mail { background: var(--paper); }
.share-btn--copy { background: var(--cobalt-100); border-color: var(--cobalt-100); color: var(--cobalt-600); }
.share-btn--native { background: var(--ink); color: #fff; border-color: var(--ink); }

/* ---------- Added: Careers page file upload input ---------- */
.file-input {
  padding: .65rem .9rem;
  cursor: pointer;
}
.file-input::file-selector-button {
  font-family: var(--font-body);
  font-weight: 600;
  font-size: .85rem;
  padding: .5rem 1rem;
  margin-right: .9rem;
  border: none;
  border-radius: var(--r-sm);
  background: var(--cobalt-100);
  color: var(--cobalt-600);
  cursor: pointer;
  transition: background .18s var(--ease);
}
.file-input::file-selector-button:hover { background: var(--cobalt); color: #fff; }