/* ==========================================================================
   HeyiEcom — Computer Systems Design & Related Services
   Theme: LIGHT with COBALT accent (#1D4ED8)
   ========================================================================== */

:root {
  --cobalt: #1D4ED8;
  --cobalt-dark: #1E40AF;
  --cobalt-mid: #3B82F6;
  --cobalt-soft: #E3ECFD;
  --ink: #182036;
  --ink-soft: #3A4357;
  --muted: #5A6478;
  --paper: #F6F7FB;
  --card: #FFFFFF;
  --line: #DCE1EE;
  --line-strong: #C6CEE2;
  --good: #1D8A4E;
  --bad: #C23B3B;
}

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

html {
  scroll-behavior: smooth;
  font-size: 16px;
}

body {
  font-size: 16px;
  font-family: "Segoe UI", "Helvetica Neue", Arial, sans-serif;
  background-color: var(--paper);
  color: var(--ink);
  line-height: 1.6;
  overflow-x: hidden;
}

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

a {
  color: var(--cobalt);
  text-decoration: none;
}

a:hover {
  color: var(--cobalt-dark);
}

h1, h2, h3 {
  line-height: 1.2;
  color: var(--ink);
  font-weight: 700;
}

.container {
  width: 100%;
  max-width: 1180px;
  margin: 0 auto;
  padding: 0 24px;
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0 0 0 0);
  white-space: nowrap;
  border: 0;
}

/* Buttons */
.btn {
  display: inline-block;
  padding: 14px 28px;
  font-size: 16px;
  font-weight: 700;
  border-radius: 8px;
  border: 2px solid transparent;
  cursor: pointer;
  transition: background-color 0.2s ease, color 0.2s ease, border-color 0.2s ease;
  text-align: center;
}

.btn-primary {
  background-color: var(--cobalt);
  color: #FFFFFF;
  border-color: var(--cobalt);
}

.btn-primary:hover {
  background-color: var(--cobalt-dark);
  border-color: var(--cobalt-dark);
  color: #FFFFFF;
}

.btn-ghost {
  background-color: transparent;
  color: var(--cobalt);
  border-color: var(--cobalt);
}

.btn-ghost:hover {
  background-color: var(--cobalt-soft);
  color: var(--cobalt-dark);
}

.btn-light {
  background-color: #FFFFFF;
  color: var(--cobalt-dark);
  border-color: #FFFFFF;
}

.btn-light:hover {
  background-color: var(--cobalt-soft);
  border-color: var(--cobalt-soft);
  color: var(--cobalt-dark);
}

.btn-block {
  width: 100%;
}

/* ==========================================================================
   RECEIPT BAR navigation
   ========================================================================== */

.receipt-nav {
  position: sticky;
  top: 0;
  z-index: 100;
  background-color: var(--card);
  border-bottom: 2px dashed var(--line-strong);
  box-shadow: 0 2px 12px rgba(24, 32, 54, 0.06);
}

.receipt-inner {
  max-width: 1180px;
  margin: 0 auto;
  padding: 14px 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  flex-wrap: wrap;
}

.receipt-brand {
  display: flex;
  flex-direction: column;
  gap: 2px;
  color: var(--ink);
}

.receipt-store {
  font-size: 15px;
  font-weight: 800;
  letter-spacing: 0.5px;
  color: var(--ink);
}

.receipt-tagline {
  font-size: 12px;
  color: var(--muted);
  letter-spacing: 0.4px;
}

.receipt-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 8px;
}

.toggle-bar {
  display: block;
  width: 24px;
  height: 3px;
  background-color: var(--ink);
  border-radius: 2px;
}

.receipt-menu {
  display: flex;
  align-items: center;
  gap: 28px;
}

.receipt-lines {
  list-style: none;
  display: flex;
  align-items: center;
  gap: 0;
}

.receipt-lines li {
  display: flex;
  align-items: center;
}

.receipt-lines a {
  color: var(--ink-soft);
  font-weight: 600;
  font-size: 15px;
  padding: 4px 0;
  white-space: nowrap;
}

.receipt-lines li + li::before {
  content: "";
  flex: 0 0 28px;
  border-top: 2px dotted var(--line-strong);
  margin: 0 10px;
}

.receipt-lines a:hover {
  color: var(--cobalt);
}

.receipt-total {
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  border: 2px solid var(--cobalt);
  border-radius: 8px;
  padding: 7px 16px;
  line-height: 1.15;
}

.total-label {
  font-size: 10px;
  font-weight: 800;
  letter-spacing: 1.5px;
  text-transform: uppercase;
  color: var(--muted);
}

.total-value {
  font-size: 15px;
  font-weight: 800;
  color: var(--cobalt);
}

.receipt-total:hover {
  background-color: var(--cobalt);
}

.receipt-total:hover .total-label,
.receipt-total:hover .total-value {
  color: #FFFFFF;
}

/* ==========================================================================
   HERO — Barcode panel
   ========================================================================== */

.hero-section {
  background: linear-gradient(180deg, #FFFFFF 0%, var(--paper) 100%);
  padding: 84px 0 72px;
  border-bottom: 2px dashed var(--line);
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  gap: 56px;
  align-items: center;
}

.hero-eyebrow {
  display: inline-block;
  font-size: 13px;
  font-weight: 800;
  letter-spacing: 1.5px;
  text-transform: uppercase;
  color: var(--cobalt);
  background-color: var(--cobalt-soft);
  padding: 7px 14px;
  border-radius: 20px;
  margin-bottom: 22px;
}

.hero-title {
  font-size: clamp(32px, 4.6vw, 52px);
  font-weight: 800;
  letter-spacing: -0.5px;
  margin-bottom: 20px;
}

.hero-lede {
  font-size: 18px;
  color: var(--ink-soft);
  margin-bottom: 30px;
  max-width: 560px;
}

.hero-actions {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
  margin-bottom: 34px;
}

.hero-trust {
  list-style: none;
  display: flex;
  gap: 36px;
  flex-wrap: wrap;
}

.hero-trust li {
  font-size: 14px;
  color: var(--muted);
}

.hero-trust strong {
  display: block;
  font-size: 24px;
  color: var(--cobalt-dark);
  font-weight: 800;
}

/* Barcode panel */
.barcode-panel {
  display: flex;
  justify-content: center;
}

.barcode-card {
  background-color: var(--card);
  border: 2px solid var(--line-strong);
  border-radius: 14px;
  padding: 26px 30px 22px;
  box-shadow: 0 16px 40px rgba(24, 32, 54, 0.08);
  max-width: 420px;
  width: 100%;
}

.barcode-top {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  margin-bottom: 22px;
}

.barcode-sku {
  font-size: 14px;
  font-weight: 700;
  color: var(--ink);
  letter-spacing: 1px;
}

.barcode-price {
  font-size: 13px;
  font-weight: 800;
  letter-spacing: 1.5px;
  color: var(--cobalt);
}

.barcode {
  display: flex;
  align-items: stretch;
  height: 96px;
  gap: 0;
}

.barcode span {
  background-color: var(--ink);
  display: block;
}

.barcode-digits {
  margin-top: 10px;
  font-size: 15px;
  letter-spacing: 7px;
  color: var(--ink);
  font-weight: 700;
  text-align: center;
}

/* ==========================================================================
   Statement section
   ========================================================================== */

.statement-section {
  padding: 84px 0;
}

.section-kicker {
  font-size: 13px;
  font-weight: 800;
  letter-spacing: 1.5px;
  text-transform: uppercase;
  color: var(--cobalt);
  margin-bottom: 12px;
}

.statement-title {
  font-size: clamp(26px, 3.4vw, 40px);
  font-weight: 800;
  max-width: 900px;
  margin-bottom: 32px;
  letter-spacing: -0.3px;
}

.statement-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 32px;
}

.statement-grid p {
  font-size: 17px;
  color: var(--ink-soft);
}

/* ==========================================================================
   Disciplines (numbered list)
   ========================================================================== */

.disciplines-section {
  background-color: #EFF2F9;
  padding: 84px 0;
  border-top: 2px dashed var(--line);
  border-bottom: 2px dashed var(--line);
}

.section-head {
  max-width: 680px;
  margin-bottom: 48px;
}

.section-title {
  font-size: clamp(26px, 3.2vw, 38px);
  font-weight: 800;
  letter-spacing: -0.3px;
  margin-bottom: 14px;
}

.section-sub {
  font-size: 17px;
  color: var(--muted);
}

.discipline-list {
  list-style: none;
  counter-reset: disc;
}

.discipline-item {
  display: flex;
  gap: 28px;
  padding: 30px 0;
  border-bottom: 1px solid var(--line-strong);
  align-items: flex-start;
}

.discipline-item:last-child {
  border-bottom: none;
}

.discipline-num {
  flex: 0 0 64px;
  font-size: 30px;
  font-weight: 800;
  color: var(--cobalt);
  line-height: 1;
  font-variant-numeric: tabular-nums;
}

.discipline-body h3 {
  font-size: 22px;
  font-weight: 700;
  margin-bottom: 8px;
}

.discipline-body p {
  font-size: 16px;
  color: var(--ink-soft);
  max-width: 760px;
}

/* ==========================================================================
   Approach — comparison table + metrics
   ========================================================================== */

.approach-section {
  padding: 84px 0;
}

.compare-table-wrap {
  overflow-x: auto;
  margin-bottom: 48px;
}

.compare-table {
  width: 100%;
  border-collapse: collapse;
  background-color: var(--card);
  border: 2px solid var(--line-strong);
  border-radius: 14px;
  overflow: hidden;
  min-width: 640px;
}

.compare-table th,
.compare-table td {
  padding: 16px 20px;
  text-align: left;
  font-size: 15px;
  border-bottom: 1px solid var(--line);
}

.compare-table thead th {
  background-color: var(--cobalt);
  color: #FFFFFF;
  font-weight: 700;
  font-size: 15px;
}

.compare-table thead th:first-child {
  background-color: var(--cobalt-dark);
}

.compare-table tbody th {
  color: var(--ink);
  font-weight: 700;
  background-color: var(--cobalt-soft);
}

.compare-table tbody tr:last-child th,
.compare-table tbody tr:last-child td {
  border-bottom: none;
}

.compare-table td:nth-child(2) {
  color: var(--bad);
}

.compare-table td:nth-child(3) {
  color: var(--good);
  font-weight: 600;
}

.metric-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
}

.metric-card {
  background-color: var(--card);
  border: 2px solid var(--line);
  border-radius: 12px;
  padding: 28px 22px;
  text-align: center;
}

.metric-value {
  display: block;
  font-size: 44px;
  font-weight: 800;
  color: var(--cobalt);
  line-height: 1;
  margin-bottom: 8px;
  font-variant-numeric: tabular-nums;
}

.metric-label {
  font-size: 14px;
  color: var(--muted);
}

/* ==========================================================================
   Industries — horizontal scroll row
   ========================================================================== */

.industries-section {
  background-color: #EFF2F9;
  padding: 84px 0;
  border-top: 2px dashed var(--line);
  border-bottom: 2px dashed var(--line);
}

.scroll-row {
  display: grid;
  grid-auto-flow: column;
  grid-auto-columns: 300px;
  gap: 20px;
  overflow-x: auto;
  padding: 8px 4px 20px;
  scroll-snap-type: x mandatory;
}

.scroll-card {
  background-color: var(--card);
  border: 2px solid var(--line);
  border-radius: 14px;
  padding: 26px 24px;
  scroll-snap-align: start;
  min-height: 170px;
}

.scroll-num {
  display: inline-block;
  font-size: 28px;
  font-weight: 800;
  color: var(--cobalt);
  margin-bottom: 12px;
  font-variant-numeric: tabular-nums;
}

.scroll-card h3 {
  font-size: 18px;
  margin-bottom: 8px;
}

.scroll-card p {
  font-size: 14px;
  color: var(--ink-soft);
}

/* ==========================================================================
   FAQ — accordion
   ========================================================================== */

.faq-section {
  padding: 84px 0;
}

.faq-layout {
  display: grid;
  grid-template-columns: 0.8fr 1.2fr;
  gap: 56px;
  align-items: start;
}

.accordion {
  border-top: 2px solid var(--line-strong);
}

.accordion-item {
  border-bottom: 2px solid var(--line-strong);
}

.accordion-trigger {
  width: 100%;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 22px 4px;
  font-size: 17px;
  font-weight: 700;
  color: var(--ink);
  text-align: left;
}

.accordion-icon {
  flex: 0 0 24px;
  height: 24px;
  position: relative;
}

.accordion-icon::before,
.accordion-icon::after {
  content: "";
  position: absolute;
  background-color: var(--cobalt);
  transition: transform 0.25s ease;
}

.accordion-icon::before {
  top: 11px;
  left: 0;
  width: 24px;
  height: 2px;
}

.accordion-icon::after {
  top: 0;
  left: 11px;
  width: 2px;
  height: 24px;
}

.accordion-item.open .accordion-icon::after {
  transform: rotate(90deg);
}

.accordion-panel {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.3s ease;
}

.accordion-panel p {
  padding: 0 4px 22px;
  color: var(--ink-soft);
  font-size: 16px;
}

/* ==========================================================================
   Contact
   ========================================================================== */

.contact-section {
  background-color: var(--cobalt-dark);
  padding: 84px 0;
  color: #FFFFFF;
}

.contact-section .section-kicker {
  color: var(--cobalt-mid);
}

.contact-section .section-title {
  color: #FFFFFF;
}

.contact-section .section-sub {
  color: #CBD5F0;
}

.contact-head {
  max-width: 640px;
}

.contact-grid {
  display: grid;
  grid-template-columns: 0.85fr 1.15fr;
  gap: 48px;
  align-items: start;
}

.contact-details {
  display: flex;
  flex-direction: column;
  gap: 28px;
}

.contact-block h3 {
  font-size: 14px;
  font-weight: 800;
  letter-spacing: 1.5px;
  text-transform: uppercase;
  color: var(--cobalt-mid);
  margin-bottom: 8px;
}

.contact-block a,
.contact-block address {
  color: #FFFFFF;
  font-style: normal;
  font-size: 17px;
  line-height: 1.5;
}

.contact-block a:hover {
  color: #CBD5F0;
}

.contact-form {
  background-color: #FFFFFF;
  border-radius: 16px;
  padding: 32px;
  color: var(--ink);
}

.form-row {
  margin-bottom: 18px;
}

.form-row label {
  display: block;
  font-size: 14px;
  font-weight: 700;
  color: var(--ink);
  margin-bottom: 6px;
}

.form-row input,
.form-row textarea {
  width: 100%;
  padding: 13px 14px;
  font-size: 16px;
  font-family: inherit;
  border: 2px solid var(--line-strong);
  border-radius: 8px;
  color: var(--ink);
  background-color: var(--card);
}

.form-row input:focus,
.form-row textarea:focus {
  outline: none;
  border-color: var(--cobalt);
}

.form-note {
  margin-top: 14px;
  font-size: 14px;
  font-weight: 600;
  color: var(--good);
  min-height: 20px;
}

.form-note.error {
  color: var(--bad);
}

/* ==========================================================================
   Footer
   ========================================================================== */

.site-footer {
  background-color: var(--ink);
  color: #CBD5F0;
}

.newsletter-band {
  background-color: var(--cobalt);
  padding: 26px 0;
  border-bottom: 2px dashed var(--line-strong);
}

.newsletter-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  flex-wrap: wrap;
}

.newsletter-copy {
  color: #FFFFFF;
  font-size: 16px;
}

.newsletter-copy strong {
  color: #FFFFFF;
}

.newsletter-form {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
}

.newsletter-form input {
  padding: 13px 16px;
  font-size: 16px;
  border: 2px solid transparent;
  border-radius: 8px;
  min-width: 260px;
  color: var(--ink);
  background-color: #FFFFFF;
}

.newsletter-form input:focus {
  outline: none;
  border-color: var(--cobalt-dark);
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr 1fr;
  gap: 40px;
  padding-top: 52px;
  padding-bottom: 40px;
}

.footer-name {
  font-size: 16px;
  font-weight: 800;
  color: #FFFFFF;
  margin-bottom: 12px;
  letter-spacing: 0.5px;
}

.footer-blurb {
  font-size: 14px;
  color: #A9B4D4;
  max-width: 320px;
}

.footer-col h3 {
  font-size: 14px;
  font-weight: 800;
  letter-spacing: 1.2px;
  text-transform: uppercase;
  color: #FFFFFF;
  margin-bottom: 16px;
}

.footer-col ul {
  list-style: none;
}

.footer-col li {
  margin-bottom: 10px;
}

.footer-col a {
  color: #A9B4D4;
  font-size: 15px;
}

.footer-col a:hover {
  color: #FFFFFF;
}

.footer-bottom {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  flex-wrap: wrap;
  padding-top: 24px;
  padding-bottom: 28px;
  border-top: 1px solid #2A3348;
  font-size: 13px;
  color: #A9B4D4;
}

/* ==========================================================================
   Scroll reveal
   ========================================================================== */

.fade-up {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

.fade-up.visible {
  opacity: 1;
  transform: translateY(0);
}

/* ==========================================================================
   Responsive
   ========================================================================== */

@media (max-width: 920px) {
  .hero-grid {
    grid-template-columns: 1fr;
    gap: 40px;
  }

  .faq-layout {
    grid-template-columns: 1fr;
    gap: 32px;
  }

  .contact-grid {
    grid-template-columns: 1fr;
    gap: 40px;
  }

  .statement-grid {
    grid-template-columns: 1fr;
    gap: 20px;
  }

  .metric-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .footer-grid {
    grid-template-columns: 1fr 1fr;
  }

  .receipt-toggle {
    display: flex;
  }

  .receipt-menu {
    flex-basis: 100%;
    display: none;
    flex-direction: column;
    align-items: stretch;
    gap: 0;
  }

  .receipt-menu.open {
    display: flex;
  }

  .receipt-lines {
    flex-direction: column;
    align-items: stretch;
    gap: 0;
  }

  .receipt-lines li + li::before {
    display: none;
  }

  .receipt-lines a {
    display: block;
    padding: 14px 0;
    border-top: 1px dashed var(--line-strong);
    font-size: 16px;
  }

  .receipt-total {
    align-items: flex-start;
    margin-top: 16px;
  }
}

@media (max-width: 560px) {
  .metric-grid {
    grid-template-columns: 1fr;
  }

  .footer-grid {
    grid-template-columns: 1fr;
    gap: 28px;
  }

  .hero-actions {
    flex-direction: column;
  }

  .hero-actions .btn {
    width: 100%;
  }

  .hero-trust {
    gap: 20px;
  }
}