/* RESET & BASE ----------------------------- */
html, body, div, span, applet, object, iframe,
h1, h2, h3, h4, h5, h6, p, blockquote, pre,
a, abbr, acronym, address, big, cite, code,
del, dfn, em, img, ins, kbd, q, s, samp,
small, strike, strong, sub, sup, tt, var,
b, u, i, center,
dl, dt, dd, ol, ul, li,
fieldset, form, label, legend,
table, caption, tbody, tfoot, thead, tr, th, td,
article, aside, canvas, details, embed, 
figure, figcaption, footer, header, hgroup, 
main, menu, nav, output, ruby, section, summary,
time, mark, audio, video {
  margin: 0;
  padding: 0;
  border: 0;
  font-size: 100%;
  font: inherit;
  vertical-align: baseline;
  box-sizing: border-box;
}
html {
  height: 100%;
  scroll-behavior: smooth;
}
body {
  min-height: 100vh;
  background: #181B20;
  color: #F5F6F7;
  font-family: 'Roboto', Arial, sans-serif;
  font-size: 16px;
  letter-spacing: 0.01em;
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
  background-color: #181B20;
}
*, *::before, *::after {
  box-sizing: inherit;
}
a {
  color: #FEE090;
  text-decoration: none;
  transition: color 0.2s;
}
a:hover, a:focus {
  color: #F8E49B;
}
ul, ol {
  padding-left: 24px;
  margin-bottom: 24px;
}
li {
  margin-bottom: 8px;
}
img {
  max-width: 100%;
  display: block;
  height: auto;
}
button, input, select, textarea {
  font-family: 'Roboto', Arial, sans-serif;
  background: none;
  border: none;
  outline: none;
  font-size: 1rem;
}
:focus {
  outline: 2px solid #FEE090;
  outline-offset: 2px;
}

/* BRAND FONT & COLORS --------------------*/
:root {
  --color-primary: #114B8C;
  --color-secondary: #FEE090;
  --color-accent: #F5F6F7;
  --color-bg: #181B20;
  --color-surface: #23272D;
  --color-metal: #7C8796;
  --color-shadow: rgba(41, 56, 80, 0.12);
  --font-display: 'Quicksand', 'Arial Rounded MT Bold', Arial, sans-serif;
  --font-body: 'Roboto', Arial, sans-serif;
}

/* TYPOGRAPHY SCALE ----------------------*/
h1, .h1 {
  font-family: var(--font-display);
  font-size: 2.5rem;
  letter-spacing: 0.02em;
  font-weight: 700;
  margin-bottom: 20px;
  color: #F5F6F7;
}
h2, .h2 {
  font-family: var(--font-display);
  font-size: 2rem;
  font-weight: 700;
  margin-bottom: 16px;
  color: #FEE090;
}
h3, .h3 {
  font-family: var(--font-display);
  font-size: 1.3rem;
  font-weight: 600;
  margin-bottom: 12px;
  color: #F5F6F7;
  letter-spacing: 0.01em;
}
h4, .h4 {
  font-family: var(--font-display);
  font-size: 1.1rem;
  font-weight: 600;
  margin-bottom: 10px;
}
h1, h2, h3, h4 {
  text-shadow: 0 2px 8px rgba(20,28,40,0.24);
}
p {
  margin-bottom: 18px;
}
strong, b {
  font-weight: 700;
  color: var(--color-secondary);
}
blockquote {
  font-family: var(--font-display);
  font-size: 1.15rem;
  font-weight: 500;
  color: #23272D;
  line-height: 1.6;
}

/* LAYOUT CONTAINERS ---------------------*/
.container {
  width: 100%;
  max-width: 1150px;
  margin: 0 auto;
  padding: 0 18px;
}
.content-wrapper {
  width: 100%;
}
main {
  width: 100%;
  flex: 1 0 auto;
}

/* SECTION SPACING & PATTERNS ------------*/
.section,
section {
  margin-bottom: 60px;
  padding: 40px 20px;
}
.card-container {
  display: flex;
  flex-wrap: wrap;
  gap: 24px;
}
.card {
  margin-bottom: 20px;
  position: relative;
  background: var(--color-surface);
  border-radius: 18px;
  box-shadow: 0 4px 14px var(--color-shadow);
  padding: 28px 22px;
  transition: box-shadow 0.25s, transform 0.16s;
}
.card:hover, .card:focus {
  box-shadow: 0 8px 22px rgba(17,75,140, 0.25);
  transform: translateY(-2px) scale(1.015);
}
.content-grid {
  display: flex;
  flex-wrap: wrap;
  gap: 20px;
  justify-content: space-between;
  margin-bottom: 20px;
}
.text-image-section {
  display: flex;
  align-items: center;
  gap: 30px;
  flex-wrap: wrap;
}
.feature-grid, .service-list {
  display: flex;
  flex-wrap: wrap;
  gap: 28px;
  justify-content: flex-start;
  margin-bottom: 24px;
}
.feature-grid > div, .service-list > div {
  background: var(--color-surface);
  border-radius: 16px;
  box-shadow: 0 2px 8px var(--color-shadow);
  padding: 26px 20px 20px 20px;
  min-width: 230px;
  flex: 1 1 240px;
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 15px;
  border: 1.5px solid #252D35;
  margin-bottom: 20px;
  transition: box-shadow 0.2s;
}
.feature-grid > div:hover,
.service-list > div:hover {
  box-shadow: 0 8px 28px rgba(17,75,140,0.13), 0 1.5px 0 #FEE090;
}
.testimonial-card {
  background: #F8F8F8;
  color: #23272D;
  border-radius: 13px;
  display: flex;
  align-items: center;
  gap: 20px;
  padding: 20px 28px;
  margin-bottom: 24px;
  box-shadow: 0 2px 18px rgba(30,37,49,0.06);
  border-left: 6px solid var(--color-primary);
  position: relative;
  min-width: 0;
  max-width: 700px;
  transition: box-shadow 0.2s, border-color 0.2s;
}
.testimonial-card:hover,
.testimonial-card:focus {
  box-shadow: 0 4px 28px var(--color-shadow);
  border-color: var(--color-secondary);
}
.testimonial-card blockquote {
  color: #23272D;
  margin-bottom: 0;
  font-size: 1rem;
  font-style: italic;
}
.testimonial-card span {
  font-family: var(--font-body);
  font-size: 0.97rem;
  font-weight: 600;
  color: var(--color-primary);
}
.features, .usp {
  display: flex;
  flex-direction: column;
  gap: 18px;
}
.feature-item {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 15px;
  margin-bottom: 18px;
}
.text-section {
  background: var(--color-surface);
  border-radius: 12px;
  padding: 32px 24px;
  margin-bottom: 30px;
  box-shadow: 0 2px 14px var(--color-shadow);
}

/* HERO & CTA -----------------------------*/
.hero {
  background: linear-gradient(90deg, #181B20 80%, #23272D 100%);
  background-color: #181B20;
  min-height: 270px;
  display: flex;
  align-items: center;
}
.hero h1 {
  color: var(--color-secondary);
  font-size: 2.2rem;
  margin-bottom: 18px;
  line-height: 1.15;
}
.hero p {
  max-width: 500px;
  font-size: 1.1rem;
  margin-bottom: 22px;
}
.cta {
  background: var(--color-primary);
  color: #fff;
  padding: 46px 20px;
  border-radius: 14px;
  box-shadow: 0 6px 18px var(--color-shadow);
  margin: 50px 0 36px 0;
  transition: background 0.3s;
}
.cta h2 {
  color: var(--color-secondary);
  margin-bottom: 16px;
}
.cta p {
  color: #fff;
}
@media (max-width: 900px) {
  .hero {
    min-height: unset;
    padding: 30px 0 10px 0;
  }
  .cta {
    padding: 26px 12px;
  }
  .feature-grid, .service-list {
    gap: 18px;
  }
}

/* BUTTONS --------------------------------*/
.button-primary,
.button-secondary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 7px;
  padding: 13px 34px;
  font-family: var(--font-display);
  font-size: 1rem;
  font-weight: 600;
  letter-spacing: 0.03em;
  cursor: pointer;
  margin-top: 8px;
  margin-right: 8px;
  transition: background 0.19s, color 0.17s, transform 0.12s, box-shadow 0.19s;
  box-shadow: 0 2px 9px var(--color-shadow);
  border: none;
  outline: none;
  text-align: center;
  min-width: 160px;
  gap: 8px;
}
.button-primary {
  background: var(--color-secondary);
  color: #23272D;
  border: 1.5px solid var(--color-secondary);
}
.button-primary:hover, .button-primary:focus {
  background: #FFD54D;
  color: #23272D;
  transform: translateY(-1px) scale(1.024);
}
.button-secondary {
  background: transparent;
  color: var(--color-secondary);
  border: 1.5px solid var(--color-secondary);
}
.button-secondary:hover, .button-secondary:focus {
  background: var(--color-secondary);
  color: #23272D;
  border: 1.5px solid #FFD54D;
  transform: translateY(-1px) scale(1.024);
}

/* MAIN NAVIGATION (DESKTOP) --------------*/
header {
  background: #181B20;
  width: 100%;
  padding: 0;
  border-bottom: 1.5px solid #23272D;
  z-index: 30;
}
.main-nav {
  display: flex;
  align-items: center;
  justify-content: flex-start;
  gap: 18px;
  height: 74px;
  padding: 4px 32px;
  background: #181B20;
  font-family: var(--font-display);
  font-size: 1.06rem;
}
.main-nav a {
  color: var(--color-accent);
  font-weight: 600;
  letter-spacing: 0.02em;
  padding: 7px 10px;
  border-radius: 5px;
  transition: background 0.14s, color 0.12s;
  position: relative;
}
.main-nav a::after {
  content: "";
  display: block;
  width: 0%;
  height: 2px;
  background: var(--color-secondary);
  transition: width 0.18s;
  margin-top: 2px;
  border-radius: 1px;
}
.main-nav a:hover, .main-nav a:focus {
  background: #23272D;
  color: var(--color-secondary);
}
.main-nav a:hover::after, .main-nav a:focus::after {
  width: 90%;
}
.main-nav img {
  height: 38px;
  width: auto;
  margin-right: 14px;
  vertical-align: middle;
}

/* BURGER MENU ---------------------------*/
.mobile-menu-toggle {
  display: none;
  position: absolute;
  top: 17px;
  right: 22px;
  background: var(--color-primary);
  color: #F5F6F7;
  font-size: 2.2rem;
  border-radius: 7px;
  width: 46px;
  height: 46px;
  border: none;
  cursor: pointer;
  z-index: 102;
  align-items: center;
  justify-content: center;
  transition: background 0.19s, color 0.19s, box-shadow 0.23s, transform 0.13s;
  box-shadow: 0 2px 8px var(--color-shadow);
}
.mobile-menu-toggle:hover,
.mobile-menu-toggle:focus {
  background: #23272D;
  color: var(--color-secondary);
  box-shadow: 0 4px 12px #00000044;
  transform: scale(1.04);
}
.mobile-menu {
  display: flex;
  flex-direction: column;
  justify-content: flex-start;
  align-items: flex-start;
  position: fixed;
  top: 0;
  left: 0;
  height: 100vh;
  width: 100vw;
  background: #181B20;
  transform: translateX(100%);
  opacity: 0;
  visibility: hidden;
  z-index: 300;
  transition: transform 0.34s cubic-bezier(0.89,0.01,0.53,1.00), opacity 0.24s;
}
.mobile-menu.open {
  transform: translateX(0);
  opacity: 1;
  visibility: visible;
}
.mobile-menu-close {
  margin: 24px 0 18px 28px;
  align-self: flex-start;
  font-size: 2rem;
  background: var(--color-primary);
  color: #FEE090;
  border: none;
  border-radius: 7px;
  width: 42px;
  height: 42px;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: background 0.18s;
}
.mobile-menu-close:hover, .mobile-menu-close:focus {
  background: #23272D;
  color: #fff;
}
.mobile-nav {
  display: flex;
  flex-direction: column;
  gap: 0px;
  margin-left: 46px;
  margin-top: 16px;
}
.mobile-nav a {
  font-family: var(--font-display);
  color: var(--color-secondary);
  font-size: 1.25rem;
  font-weight: 600;
  padding: 15px 0 11px 0;
  margin-bottom: 6px;
  border-radius: 0 6px 6px 0;
  width: 210px;
  display: inline-block;
  transition: background 0.14s, color 0.19s;
  background: transparent;
}
.mobile-nav a:hover, .mobile-nav a:focus {
  color: #23272D;
  background: var(--color-secondary);
}

@media (max-width: 1020px) {
  .main-nav {
    gap: 10px;
    font-size: 1rem;
    padding: 4px 10px;
  }
  .main-nav img {
    margin-right: 6px;
    height: 30px;
  }
}

@media (max-width: 860px) {
  .main-nav {
    display: none;
  }
  .mobile-menu-toggle {
    display: flex;
  }
}

@media (max-width: 520px) {
  .mobile-nav a {
    font-size: 1.08rem;
    width: 94vw;
    margin-left: -14px;
  }
}

/* FOOTER --------------------------------*/
footer {
  background: var(--color-surface);
  color: var(--color-accent);
  padding: 32px 0 16px 0;
  width: 100%;
  box-shadow: 0 -2px 14px #10111844;
  margin-top: 30px;
}
.footer-nav {
  display: flex;
  flex-wrap: wrap;
  gap: 18px;
  justify-content: center;
  align-items: center;
  margin-bottom: 16px;
}
.footer-nav a {
  color: var(--color-secondary);
  font-family: var(--font-display);
  font-size: 0.97rem;
  font-weight: 600;
  padding: 7px;
  border-radius: 4px;
  transition: background 0.13s, color 0.14s;
}
.footer-nav a:hover, .footer-nav a:focus {
  background: #23272D;
  color: #fff;
}
.footer-contact {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 7px;
  font-size: 0.97rem;
  color: #90959B;
}

/* FAQ ACCORDION -------------------------*/
.faq-accordion {
  display: flex;
  flex-direction: column;
  gap: 18px;
  margin-bottom: 36px;
}
.faq-item {
  background: var(--color-surface);
  border: 1.5px solid #252D35;
  border-radius: 13px;
  padding: 22px 18px;
  color: #F5F6F7;
  transition: box-shadow 0.21s;
  box-shadow: 0 2px 12px var(--color-shadow);
  margin-bottom: 8px;
}
.faq-item h3 {
  font-size: 1.18rem;
  color: var(--color-secondary);
  margin-bottom: 6px;
}
.faq-item p {
  font-size: 1rem;
  margin-bottom: 0;
}

/* LISTS & OL/UL --------------------------*/
ul, ol {
  margin-bottom: 20px;
}
ul li, ol li {
  margin-left: 0;
  margin-bottom: 8px;
}
ul li strong, ol li strong {
  color: var(--color-metal);
}

/* FORMS (if present) ---------------------*/
input, textarea, select {
  background: #23272D;
  color: #F5F6F7;
  padding: 12px;
  border-radius: 6px;
  border: 1.5px solid #333C4C;
  margin-bottom: 16px;
  width: 100%;
  transition: border 0.2s, box-shadow 0.17s;
}
input:focus, textarea:focus, select:focus {
  border: 1.5px solid var(--color-secondary);
  box-shadow: 0 0 0 2px #FEE09088;
}
label {
  display: block;
  margin-bottom: 7px;
  font-family: var(--font-display);
  font-weight: 500;
  color: var(--color-accent);
}

/* TEXT-IMAGE SECTION --------------------*/
.text-image-section {
  margin-bottom: 28px;
}
.text-section ul {
  margin-bottom: 8px;
}
.text-section span {
  color: var(--color-secondary);
  font-weight: 700;
}

/* COOKIES BANNER ------------------------*/
.cookie-banner {
  display: flex;
  flex-direction: row;
  align-items: center;
  justify-content: space-between;
  position: fixed;
  bottom: 0;
  left: 0;
  width: 100%;
  background: #23272D;
  color: #F5F6F7;
  box-shadow: 0 -2px 14px #222b3499;
  z-index: 400;
  padding: 20px 15px 20px 22px;
  gap: 18px;
  opacity: 0;
  pointer-events: none;
  transform: translateY(100%);
  transition: opacity 0.28s, transform 0.38s cubic-bezier(0.82,0.07,0.47,1.01);
}
.cookie-banner.visible {
  opacity: 1;
  pointer-events: all;
  transform: translateY(0);
}
.cookie-banner .cookie-buttons {
  display: flex;
  gap: 14px;
  flex-wrap: wrap;
}
.cookie-banner button {
  border-radius: 7px;
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 0.97rem;
  padding: 10px 22px;
  border: none;
  margin: 0;
  background: var(--color-secondary);
  color: #23272D;
  transition: background 0.15s, color 0.12s, box-shadow 0.14s;
  cursor: pointer;
}
.cookie-banner .cookie-reject {
  background: #23272D;
  color: var(--color-accent);
  border: 1.5px solid var(--color-secondary);
}
.cookie-banner .cookie-reject:hover,
.cookie-banner .cookie-reject:focus {
  background: #181B20;
  color: var(--color-secondary);
}
.cookie-banner .cookie-settings {
  background: transparent;
  color: var(--color-secondary);
  border: 1.5px solid var(--color-secondary);
}
.cookie-banner .cookie-settings:hover,
.cookie-banner .cookie-settings:focus {
  background: var(--color-secondary);
  color: #23272D;
}
.cookie-banner .cookie-accept:hover, .cookie-banner .cookie-accept:focus {
  background: #FFD54D;
}

/* COOKIES MODAL -------------------------*/
.cookie-modal-overlay {
  position: fixed;
  z-index: 500;
  inset: 0;
  width: 100vw;
  height: 100vh;
  background: rgba(20, 22, 29, 0.80);
  display: flex;
  align-items: center;
  justify-content: center;
  visibility: hidden;
  opacity: 0;
  transition: opacity 0.28s;
}
.cookie-modal-overlay.open {
  visibility: visible;
  opacity: 1;
}
.cookie-modal {
  background: #23272D;
  color: var(--color-accent);
  padding: 38px 26px 28px 26px;
  border-radius: 16px;
  box-shadow: 0 6px 26px #181B2055;
  max-width: 98vw;
  width: 420px;
  position: relative;
  z-index: 501;
  animation: fadein-cookie 0.38s cubic-bezier(0.82,0.07,0.47,1.01);
}
@keyframes fadein-cookie {
  from { opacity: 0; transform: translateY(90px) scale(0.92); }
  to   { opacity: 1; transform: translateY(0) scale(1.0); }
}
.cookie-modal h2 {
  color: var(--color-secondary);
  font-size: 1.18rem;
  font-family: var(--font-display);
  margin-bottom: 13px;
}
.cookie-modal .cookie-close {
  position: absolute;
  top: 13px;
  right: 16px;
  background: var(--color-primary);
  border-radius: 5px;
  width: 31px;
  height: 31px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.34rem;
  color: var(--color-secondary);
  border: none;
  cursor: pointer;
  transition: background 0.11s;
  z-index: 2;
}
.cookie-modal .cookie-close:hover { background: #23272D; color: #fff; }
.cookie-modal ul {
  list-style: none;
  padding-left: 0;
  margin-bottom: 12px;
}
.cookie-modal label {
  font-family: var(--font-body);
  font-size: 1rem;
  font-weight: 500;
  display: flex;
  align-items: center;
  margin-bottom: 10px;
  gap: 10px;
}
.cookie-modal input[type="checkbox"] {
  accent-color: var(--color-secondary);
  width: 19px;
  height: 19px;
  border-radius: 4px;
  border: 1.5px solid #ADB3B9;
}
.cookie-modal .cookie-actions {
  display: flex;
  gap: 13px;
  margin-top: 15px;
}
.cookie-modal .cookie-actions button {
  padding: 10px 20px;
  border-radius: 6px;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 0.97rem;
  border: none;
  cursor: pointer;
}
.cookie-modal .cookie-actions .cookie-accept {
  background: var(--color-secondary);
  color: #23272D;
}
.cookie-modal .cookie-actions .cookie-save {
  background: var(--color-primary);
  color: #F5F6F7;
}
.cookie-modal .cookie-actions .cookie-accept:hover {
  background: #FFD54D;
}
.cookie-modal .cookie-actions .cookie-save:hover {
  background: #0D2542;
}

/* ----------- RESPONSIVE DESIGN */
@media (max-width: 1150px) {
  .container {
    max-width: 95vw;
  }
}
@media (max-width: 900px) {
  .container {
    padding: 0 10px;
  }
  .feature-grid, .service-list {
    flex-wrap: wrap;
    gap: 13px;
  }
  .feature-grid > div, .service-list > div {
    min-width: 185px;
    padding: 19px 8px 14px 12px;
  }
}
@media (max-width: 768px) {
  .section, section {
    padding: 24px 7px;
    margin-bottom: 34px;
  }
  .card {
    padding: 19px 11px;
    margin-bottom: 10px;
  }
  .testimonial-card {
    flex-direction: column;
    align-items: flex-start;
    padding: 15px 10px;
    margin-bottom: 15px;
  }
  .feature-grid, .service-list {
    flex-direction: column;
    gap: 9px;
    margin-bottom: 5px;
  }
  .feature-grid > div, .service-list > div {
    flex: 1 1 100%;
    min-width: 0;
    width: 100%;
    padding: 17px 9px 10px 10px;
  }
  .text-image-section {
    flex-direction: column;
    align-items: stretch;
    gap: 16px;
  }
}
@media (max-width: 600px) {
  h1, .h1 { font-size: 1.65rem; }
  h2, .h2 { font-size: 1.17rem; }
  .footer-nav { gap: 6px; font-size: 0.86rem; }
  .footer-contact { font-size: 0.89rem; }
  .hero { padding: 15px 0 8px 0; }
  .cta { padding: 13px 6px; }
}
@media (max-width: 450px) {
  .testimonial-card { padding: 8px 3px; font-size: 0.92rem; }
  .button-primary, .button-secondary { font-size: 0.95rem; padding: 11px 9px; min-width: 100px; }
  .cookie-banner { flex-direction: column; align-items: flex-start; }
}

/* ----------- ANIMATIONS & MICROS --------*/
.button-primary, .button-secondary, .cookie-banner button, .cookie-modal .cookie-actions button {
  transition: background .17s, color .12s, box-shadow 0.14s, transform 0.12s;
}
.testimonial-card { transition: box-shadow .19s, border-color .15s; }
.feature-grid > div, .service-list > div { transition: box-shadow .18s; }

/* ----------- INDUSTRIAL MODERN ACCENTS ---*/
.card, .feature-grid > div, .service-list > div, .text-section {
  border-top: 3.5px solid #7C8796;
  border-right: 1px solid #2C343F;
  border-bottom: 1.5px solid #343b4a;
}
.card, .card-container, .feature-grid > div {
  background-image: repeating-linear-gradient(135deg, #23272D 0 26px, #252d3c 26px 52px);
}
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-display), 'Arial Black', Arial, sans-serif;
  text-transform: none;
}

/* METALLIC ICONS/IMAGES - extra */
.feature-grid img, .service-list img {
  width: 38px;
  height: 38px;
  filter: brightness(0.90) contrast(1.17) drop-shadow(0 2px 6px #10171f44);
  margin-bottom: 5px;
}

/* TABLES (if present) --------------------*/
table {
  width: 100%;
  border-collapse: collapse;
  margin-bottom: 26px;
  background: var(--color-surface);
  color: var(--color-accent);
}
th, td {
  border: 1px solid #323b44;
  padding: 10px 7px;
}
th {
  background: #20252b;
  color: var(--color-secondary);
  font-family: var(--font-display);
}

/* SELECTIVE UTILITY CLASSES --------------*/
.mt-3 { margin-top: 24px !important; }
.mb-3 { margin-bottom: 24px !important; }
.pt-2 { padding-top: 16px !important; }
.pb-2 { padding-bottom: 16px !important; }
.align-center { align-items: center !important; }

/* MISC SPACING GUARDS -------------------*/
.section > *, .features > *, .usp > *, .content-wrapper > *, .text-section > * {
  margin-bottom: 18px;
}
.section > *:last-child, .features > *:last-child, .usp > *:last-child, .content-wrapper > *:last-child, .text-section > *:last-child {
  margin-bottom: 0;
}

/* NO GRID ALLOWED! All layouts use only flexbox. */