:root {
  --bg-dark: rgb(15,17,24);
  --bg-darker: rgb(12,14,19);
  --bg-card: #1f2126;
  --bg-card-soft: #191c22;
  --text: #e8edf5;
  --muted: #9aa0aa;
  --muted-strong: #bec6d2;
  --line: rgba(255,255,255,.10);
  --primary: #0d6efd;
  --primary-soft: rgba(13,110,253,.16);
  --success: #20c997;
  --warning: #ffc857;
  --danger: #ff6b6b;
  --shadow: 0 18px 48px rgba(0,0,0,.26);
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  min-height: 100vh;
  margin: 0;
  padding-top: 82px;
  background: var(--bg-dark);
  color: var(--text);
  font-family: "Segoe UI", Arial, sans-serif;
  line-height: 1.6;
}
a { color: #7ab2ff; }
a:hover { color: #a9ccff; }
img { max-width: 100%; }
.section-anchor { scroll-margin-top: 95px; }
.section-bordered { border-top: 1px solid rgba(255,255,255,.07); }
.section-kicker {
  display: inline-flex;
  align-items: center;
  gap: .45rem;
  margin-bottom: .9rem;
  color: #8dbaff;
  font-size: .78rem;
  font-weight: 800;
  letter-spacing: .12em;
  text-transform: uppercase;
}
.section-title {
  margin-bottom: .9rem;
  color: #fff;
  font-weight: 800;
  letter-spacing: -.03em;
}
.section-lead { max-width: 860px; color: var(--muted-strong); }
.text-muted-stack { color: var(--muted) !important; }
.bg-stripes {
  background: repeating-linear-gradient(-45deg, rgb(15,17,24) 0, rgb(15,17,24) 12px, rgba(255,255,255,.032) 12px, rgba(255,255,255,.032) 24px);
}

/* Header */
.main-header {
  min-height: 82px;
  padding: .55rem 0;
  background: rgba(12,14,19,.96);
  border-bottom: 1px solid rgba(255,255,255,.09);
  backdrop-filter: blur(16px);
}
.stack-brand {
  display: inline-flex;
  align-items: center;
  gap: .72rem;
  color: #fff;
  text-decoration: none;
}
.stack-brand:hover { color: #fff; }
.brand-mark { width: 58px; height: 40px; flex: 0 0 auto; }
.stack-brand__text { display: grid; grid-template-columns: auto auto; gap: 0 .35rem; align-items: baseline; line-height: 1; }
.stack-brand__text strong { color: #fff; font-size: 1.18rem; letter-spacing: .02em; }
.stack-brand__text b { color: #5fa2ff; font-size: 1.18rem; letter-spacing: .1em; }
.stack-brand__text small { grid-column: 1 / -1; margin-top: .35rem; color: #8d96a5; font-size: .58rem; letter-spacing: .18em; text-transform: uppercase; }
.main-header .nav-link { margin-left: .55rem; color: #d8dde6; font-size: .94rem; font-weight: 650; }
.main-header .nav-link:hover { color: #7ab2ff; }
.stack-header-cta { padding: .62rem 1rem; border-radius: 8px; font-weight: 700; }

/* Hero */
.hero-section { position: relative; overflow: hidden; padding: clamp(58px, 9vw, 118px) 0 clamp(54px, 8vw, 104px); }
.hero-section::before,
.hero-section::after { content: ""; position: absolute; border-radius: 50%; filter: blur(1px); pointer-events: none; }
.hero-section::before { width: 560px; height: 560px; top: -280px; right: -100px; background: radial-gradient(circle, rgba(13,110,253,.24), rgba(13,110,253,0) 68%); }
.hero-section::after { width: 430px; height: 430px; bottom: -270px; left: -90px; background: radial-gradient(circle, rgba(32,201,151,.12), rgba(32,201,151,0) 70%); }
.hero-grid { position: relative; z-index: 1; }
.hero-badge { display: inline-flex; align-items: center; gap: .55rem; padding: .45rem .78rem; border: 1px solid rgba(122,178,255,.33); border-radius: 999px; background: rgba(13,110,253,.10); color: #b9d6ff; font-size: .78rem; font-weight: 800; letter-spacing: .08em; text-transform: uppercase; }
.hero-title { max-width: 820px; margin: 1.15rem 0 1rem; color: #fff; font-size: clamp(2.35rem, 5.1vw, 4.75rem); font-weight: 850; letter-spacing: -.065em; line-height: .98; }
.hero-title span { color: #69a9ff; }
.hero-text { max-width: 760px; margin: 0; color: #c4ccd7; font-size: clamp(1.02rem, 1.6vw, 1.26rem); }
.hero-actions { display: flex; flex-wrap: wrap; gap: .8rem; margin-top: 1.75rem; }
.hero-actions .btn { padding: .82rem 1.15rem; border-radius: 9px; font-weight: 750; }
.hero-note { margin-top: 1.1rem; color: #8d96a5; font-size: .9rem; }
.hero-console { position: relative; max-width: 510px; margin-left: auto; padding: 1px; border-radius: 18px; background: linear-gradient(145deg, rgba(122,178,255,.72), rgba(32,201,151,.18), rgba(255,255,255,.04)); box-shadow: var(--shadow); }
.hero-console__inner { padding: 1.15rem; border-radius: 17px; background: #101319; }
.console-bar { display: flex; align-items: center; gap: .42rem; padding-bottom: .88rem; border-bottom: 1px solid rgba(255,255,255,.08); }
.console-dot { width: 9px; height: 9px; border-radius: 50%; background: #ff6b6b; }
.console-dot:nth-child(2) { background: #ffc857; }
.console-dot:nth-child(3) { background: #20c997; }
.console-title { margin-left: auto; color: #7f8996; font-size: .75rem; letter-spacing: .08em; }
.console-lines { display: grid; gap: .78rem; margin-top: 1.05rem; }
.console-line { display: flex; gap: .8rem; align-items: center; color: #cbd4df; font-family: Consolas, "Courier New", monospace; font-size: .87rem; }
.console-line i { width: 1rem; color: #56d9a9; }
.console-line strong { color: #88baff; font-weight: 700; }
.console-chip-row { display: flex; flex-wrap: wrap; gap: .5rem; margin-top: 1.25rem; }
.console-chip { padding: .34rem .58rem; border: 1px solid rgba(255,255,255,.11); border-radius: 6px; background: rgba(255,255,255,.035); color: #b8c1ce; font-size: .74rem; font-weight: 750; }

/* Stats */
.stats-strip { border-top: 1px solid rgba(255,255,255,.07); border-bottom: 1px solid rgba(255,255,255,.07); background: #12151b; }
.stat-box { height: 100%; padding: 1.4rem .9rem; border-right: 1px solid rgba(255,255,255,.07); }
.stat-box:last-child { border-right: 0; }
.stat-value { display: block; margin-bottom: .25rem; color: #fff; font-size: 1.03rem; font-weight: 850; }
.stat-label { color: #8993a0; font-size: .84rem; }

/* Cards */
.solution-card,
.inside-card,
.process-card,
.audience-card,
.start-detail-card,
.start-audience-card,
.form-shell,
.faq-item,
.video-card {
  height: 100%;
  border: 1px solid rgba(255,255,255,.10);
  border-radius: 14px;
  background: rgba(31,33,38,.93);
  box-shadow: 0 10px 26px rgba(0,0,0,.14);
}
.solution-card { position: relative; display: flex; flex-direction: column; padding: 1.35rem; transition: transform .2s ease, border-color .2s ease, box-shadow .2s ease; overflow: hidden; }
.solution-card:hover { transform: translateY(-5px); border-color: rgba(122,178,255,.60); box-shadow: 0 18px 38px rgba(0,0,0,.22); }
.solution-card--primary { border-color: rgba(13,110,253,.75); background: linear-gradient(180deg, rgba(25,47,80,.90), rgba(31,33,38,.96)); }
.solution-ribbon { position: absolute; top: 13px; right: -33px; width: 130px; padding: .27rem 0; transform: rotate(39deg); background: #0d6efd; color: #fff; font-size: .66rem; font-weight: 900; text-align: center; letter-spacing: .09em; text-transform: uppercase; }
.icon-box { display: inline-flex; align-items: center; justify-content: center; width: 52px; height: 52px; border: 1px solid rgba(122,178,255,.28); border-radius: 12px; background: rgba(13,110,253,.13); color: #9cc6ff; font-size: 1.5rem; }
.solution-title-row { display: flex; align-items: baseline; justify-content: space-between; gap: .8rem; margin: 1rem 0 .62rem; }
.solution-card h3 { margin: 0; color: #fff; font-size: 1.22rem; font-weight: 820; }
.solution-price { flex: 0 0 auto; color: #77b4ff; font-size: 1.12rem; font-weight: 900; letter-spacing: -.03em; white-space: nowrap; }
.solution-price small { color: #b6c5d8; font-size: .68em; font-weight: 750; letter-spacing: 0; }
.solution-card p { color: #b7c0cb; font-size: .94rem; }
.solution-list { display: grid; gap: .46rem; margin: .25rem 0 1.15rem; padding: 0; list-style: none; }
.solution-list li { position: relative; padding-left: 1.24rem; color: #cdd5df; font-size: .88rem; }
.solution-list li::before { content: "✓"; position: absolute; left: 0; color: #68d7aa; font-weight: 900; }
.solution-card .btn { margin-top: auto; border-radius: 8px; font-weight: 750; }

/* DIM Start details */
.start-package-layout { --bs-gutter-y: 1.5rem; }
.start-detail-card,
.start-audience-card,
.start-bonus-card {
  padding: clamp(1.2rem, 3vw, 1.65rem);
}
.start-detail-card {
  display: flex;
  flex-direction: column;
  border-color: rgba(13,110,253,.52);
  background: linear-gradient(150deg, rgba(23,43,70,.92), rgba(31,33,38,.96));
}
.start-detail-head {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 1rem;
  margin-bottom: 1.15rem;
  padding-bottom: 1rem;
  border-bottom: 1px solid rgba(255,255,255,.10);
}
.start-detail-label,
.start-side-label {
  display: block;
  margin-bottom: .25rem;
  color: #8dbaff;
  font-size: .74rem;
  font-weight: 850;
  letter-spacing: .1em;
  text-transform: uppercase;
}
.start-detail-card h3,
.start-audience-card h3,
.start-bonus-card h3 {
  margin: 0;
  color: #fff;
  font-weight: 850;
}
.start-detail-card h3 { font-size: 1.55rem; }
.start-detail-subtitle {
  max-width: 42rem;
  margin-top: .55rem;
  color: #aebfd3;
  font-size: .94rem;
  line-height: 1.6;
}
.start-detail-price {
  flex: 0 0 auto;
  display: inline-flex;
  align-items: baseline;
  gap: .18rem;
  padding: .52rem .8rem;
  border: 1px solid rgba(122,178,255,.28);
  border-radius: 999px;
  background: rgba(13,110,253,.12);
  color: #77b4ff;
  font-size: 1.28rem;
  font-weight: 900;
  letter-spacing: -.03em;
  white-space: nowrap;
}
.start-detail-price small { color: #b6c5d8; font-size: .64em; font-weight: 750; letter-spacing: 0; }
.start-detail-list {
  display: grid;
  gap: .82rem;
  margin: 0;
  padding: 0;
  list-style: none;
}
.start-detail-list li {
  position: relative;
  padding-left: 1.65rem;
  color: #cbd4df;
  line-height: 1.62;
}
.start-detail-list li::before { content: "✓"; position: absolute; left: 0; top: 0; color: #68d7aa; font-weight: 900; }
.start-detail-list strong { color: #f1f5fb; }
.start-detail-actions {
  display: flex;
  justify-content: flex-start;
  margin-top: 1.35rem;
  padding-top: 1.1rem;
  border-top: 1px solid rgba(255,255,255,.08);
}
.start-detail-card .btn { border-radius: 8px; font-weight: 750; }
.start-side-grid {
  display: grid;
  gap: 1rem;
  height: 100%;
}
.start-audience-card,
.start-bonus-card {
  display: flex;
  flex-direction: column;
  border: 1px solid rgba(255,255,255,.10);
  border-radius: 14px;
  background: rgba(31,33,38,.93);
  box-shadow: 0 10px 26px rgba(0,0,0,.14);
}
.start-side-head {
  display: flex;
  align-items: center;
  gap: .9rem;
  margin-bottom: 1rem;
}
.start-audience-card h3,
.start-bonus-card h3 { font-size: 1.18rem; }
.start-audience-list { display: grid; gap: .8rem; margin: 0; padding: 0; list-style: none; }
.start-audience-list li { position: relative; padding-left: 1.25rem; color: #bdc6d1; font-size: .93rem; line-height: 1.6; }
.start-audience-list li::before { content: "•"; position: absolute; left: 0; color: #77b4ff; font-weight: 900; }
.start-audience-list strong { color: #f1f5fb; }
.start-bonus-card p {
  margin: 0 0 .65rem;
  color: #bdc6d1;
  font-size: .93rem;
  line-height: 1.6;
}
.start-link {
  display: inline-flex;
  align-items: center;
  gap: .35rem;
  margin-top: auto;
  color: #8dbaff;
  font-size: .9rem;
  font-weight: 780;
  text-decoration: none;
}
.start-link:hover { color: #b8d7ff; }

.inside-card { display: flex; gap: 1rem; padding: 1.18rem; transition: border-color .2s ease, transform .2s ease; }
.inside-card:hover { transform: translateY(-2px); border-color: rgba(122,178,255,.5); }
.inside-card h3 { margin: 0 0 .38rem; color: #fff; font-size: 1.02rem; font-weight: 820; }
.inside-card p { margin: 0; color: #adb7c4; font-size: .9rem; }

.process-card { padding: 1.25rem; }
.process-number { display: inline-flex; align-items: center; justify-content: center; width: 38px; height: 38px; border: 1px solid rgba(122,178,255,.32); border-radius: 50%; background: rgba(13,110,253,.13); color: #9cc6ff; font-weight: 850; }
.process-card h3 { margin: .9rem 0 .43rem; color: #fff; font-size: 1.02rem; font-weight: 820; }
.process-card p { margin: 0; color: #adb7c4; font-size: .9rem; }

.audience-card { padding: 1.15rem; }
.audience-card h3 { margin: .78rem 0 .38rem; color: #fff; font-size: 1.02rem; font-weight: 820; }
.audience-card p { margin: 0; color: #adb7c4; font-size: .9rem; }

/* Highlight banner */
.highlight-banner { padding: 1.35rem; border: 1px solid rgba(32,201,151,.32); border-radius: 16px; background: linear-gradient(120deg, rgba(32,201,151,.11), rgba(13,110,253,.12)); }
.highlight-banner h2 { color: #fff; font-size: clamp(1.32rem, 2.3vw, 1.9rem); font-weight: 830; }
.highlight-banner p { margin-bottom: 0; color: #c5ced9; }
.highlight-banner .btn { border-radius: 8px; font-weight: 750; white-space: nowrap; }

/* FAQ */
.faq-item { overflow: hidden; }
.accordion.stack-accordion { --bs-accordion-bg: transparent; --bs-accordion-border-color: transparent; --bs-accordion-btn-color: #edf3fb; --bs-accordion-active-color: #fff; --bs-accordion-active-bg: #1d2530; --bs-accordion-btn-bg: #191d23; --bs-accordion-body-color: #bcc5d1; }
.stack-accordion .accordion-item { overflow: hidden; margin-bottom: .8rem; border: 1px solid rgba(255,255,255,.10); border-radius: 10px; background: transparent; }
.stack-accordion .accordion-button { color: #edf3fb; font-weight: 750; box-shadow: none; }
.stack-accordion .accordion-button::after { filter: invert(1) opacity(.75); }
.stack-accordion .accordion-body { background: #14181e; color: #bdc6d1; }

/* Form */
.request-section { background: linear-gradient(180deg, rgba(13,110,253,.06), rgba(15,17,24,0)); }
.form-shell { padding: clamp(1.2rem, 3vw, 2rem); }
.form-shell h2 { color: #fff; font-weight: 830; }
.form-control,
.form-select { min-height: 48px; border-color: #3c434d; background: #181c22; color: #f3f6fb; }
.form-control:focus,
.form-select:focus { border-color: #4b9cff; background: #181c22; color: #fff; box-shadow: 0 0 0 .25rem rgba(13,110,253,.18); }
.form-control::placeholder { color: #75808e; }
.form-select option { background: #181c22; color: #fff; }
.form-check-input { border-color: #626d7b; background-color: #181c22; }
.form-check-input:checked { border-color: #0d6efd; background-color: #0d6efd; }
.form-label { color: #dbe3ed; font-weight: 700; }
.form-note { color: #8993a0; font-size: .83rem; }
.request-side { height: 100%; padding: clamp(1.2rem, 3vw, 2rem); border: 1px solid rgba(255,255,255,.09); border-radius: 14px; background: rgba(19,22,28,.82); }
.request-side h3 { color: #fff; font-weight: 820; }
.request-points { display: grid; gap: .88rem; margin: 1.1rem 0 0; padding: 0; list-style: none; }
.request-points li { display: flex; gap: .75rem; color: #bdc6d1; }
.request-points i { color: #69a9ff; font-size: 1.15rem; }
.honeypot { position: absolute !important; left: -9999px !important; width: 1px !important; height: 1px !important; opacity: 0 !important; pointer-events: none !important; }

/* Footer */
.footer-section { padding: 2.25rem 0 1.05rem; border-top: 1px solid rgba(255,255,255,.08); background: var(--bg-darker); }
.stack-brand--footer .brand-mark { width: 51px; height: 35px; }
.footer-copy { max-width: 560px; color: #909aa7; }
.footer-title { margin-bottom: .7rem; color: #e7edf5; font-size: .9rem; font-weight: 850; letter-spacing: .08em; text-transform: uppercase; }
.footer-links { display: grid; gap: .35rem; margin: 0; padding: 0; list-style: none; }
.footer-links a { color: #98a4b1; text-decoration: none; }
.footer-links a:hover { color: #86baff; }
.footer-bottom { display: flex; justify-content: space-between; gap: 1rem; margin-top: 1.8rem; padding-top: 1rem; border-top: 1px solid rgba(255,255,255,.07); color: #717c89; font-size: .82rem; }

/* Utility pages */
.utility-page { min-height: calc(100vh - 82px); padding: 4.5rem 0; }
.utility-card { max-width: 860px; margin: 0 auto; padding: clamp(1.2rem, 4vw, 2.5rem); border: 1px solid rgba(255,255,255,.10); border-radius: 15px; background: rgba(31,33,38,.94); }
.utility-card h1, .utility-card h2 { color: #fff; font-weight: 830; }
.utility-card p, .utility-card li { color: #bec7d2; }
.success-icon { display: inline-flex; align-items: center; justify-content: center; width: 76px; height: 76px; border: 1px solid rgba(32,201,151,.40); border-radius: 50%; background: rgba(32,201,151,.12); color: #61d9af; font-size: 2.4rem; }

@media (max-width: 991.98px) {
  body { padding-top: 74px; }
  .main-header { min-height: 74px; }
  .main-header .navbar-collapse { margin-top: .7rem; padding: .45rem 0 .75rem; border-top: 1px solid rgba(255,255,255,.08); }
  .main-header .nav-link { margin-left: 0; padding: .6rem 0; }
  .stack-header-cta { display: inline-flex; }
  .hero-console { max-width: 620px; margin: 2rem auto 0; }
  .stat-box { border-bottom: 1px solid rgba(255,255,255,.07); }
  .start-detail-head { flex-direction: column; }
  .start-detail-actions { justify-content: stretch; }
  .start-detail-actions .btn { width: 100%; }
  .start-side-head { align-items: flex-start; }
}

@media (max-width: 575.98px) {
  .hero-section { padding-top: 48px; }
  .hero-title { font-size: 2.55rem; }
  .hero-actions { display: grid; }
  .hero-actions .btn { width: 100%; }
  .console-line { align-items: flex-start; font-size: .76rem; }
  .footer-bottom { display: grid; }
}