/* =============================================================================
   conzept.be — base styles
   Bootstrap 5 + custom brand layer
   ============================================================================= */

/* ---- Design tokens -------------------------------------------------------- */
:root {
  --color-navy:      #012334;
  --color-accent:    #E07A5F;
  --color-offwhite:  #f6f6f6;
  --color-charcoal:  #333333;
  --color-beige:     #E3DBCF;
  --color-lightgrey: #ECF0F1;
  --color-accent-dark: #c9613d;
  --font-body:    'Plus Jakarta Sans', sans-serif;
  --font-display: 'Playfair Display', serif;
}

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

html {
  scroll-behavior: smooth;
}

body {
  background-color: var(--color-navy);
  color: var(--color-beige);
  font-family: var(--font-body);
  font-size: 1rem;
  line-height: 1.6;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

main {
  flex: 1;
}

h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-display);
  font-weight: 700;
  line-height: 1.2;
}

a {
  color: var(--color-accent);
  text-decoration: underline;
  text-underline-offset: 3px;
}

a:hover {
  color: var(--color-offwhite);
}

/* ---- Skip link ------------------------------------------------------------ */
.skip-link {
  position: absolute;
  top: -100%;
  left: 1rem;
  z-index: 9999;
  background-color: var(--color-accent);
  color: var(--color-offwhite);
  font-family: var(--font-body);
  font-weight: 600;
  font-size: 0.9rem;
  padding: 0.5rem 1.25rem;
  border-radius: 0 0 4px 4px;
  text-decoration: none;
  transition: top 0.15s ease;
}

.skip-link:focus {
  top: 0;
  color: var(--color-offwhite);
}

/* ---- Focus styles --------------------------------------------------------- */
:focus-visible {
  outline: 2px solid var(--color-accent);
  outline-offset: 3px;
  border-radius: 2px;
}

/* Remove Bootstrap's default focus shadow on nav links */
.nav-link:focus-visible,
.navbar-brand:focus-visible {
  box-shadow: none;
}

/* ---- Navbar --------------------------------------------------------------- */
.navbar {
  background-color: rgba(1, 35, 52, 0.95) !important;
  backdrop-filter: blur(8px);
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
  padding-top: 1rem;
  padding-bottom: 1rem;
}

.navbar-brand {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.2rem;
  color: var(--color-beige);
  letter-spacing: 0.01em;
  text-decoration: none;
}

.navbar-brand:hover,
.navbar-brand:focus {
  color: var(--color-accent);
}

.nav-link {
  font-family: var(--font-body);
  font-weight: 600;
  font-size: 0.875rem;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--color-beige);
  text-decoration: none;
  padding: 0.4rem 0.75rem;
  transition: color 0.2s ease;
}

.nav-link:hover,
.nav-link:focus {
  color: var(--color-accent);
}

.navbar-nav .nav-link.active,
.navbar-nav .nav-link[aria-current="page"] {
  color: var(--color-accent);
  opacity: 1;
}

/* Hamburger toggler */
.navbar-toggler {
  border-color: rgba(227, 219, 207, 0.3);
  padding: 0.375rem 0.6rem;
}

.navbar-toggler:focus {
  box-shadow: 0 0 0 2px var(--color-accent);
}

.navbar-toggler-icon {
  background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 30 30'%3e%3cpath stroke='rgba%28227%2C219%2C207%2C0.85%29' stroke-linecap='round' stroke-miterlimit='10' stroke-width='2' d='M4 7h22M4 15h22M4 23h22'/%3e%3c/svg%3e");
}

/* Collapsed menu on mobile */
.navbar-collapse {
  padding-top: 0.5rem;
}

@media (max-width: 767.98px) {
  .nav-link {
    padding: 0.6rem 0;
  }
}

/* ---- Footer --------------------------------------------------------------- */
.site-footer {
  background-color: rgba(0, 0, 0, 0.25);
  border-top: 1px solid rgba(227, 219, 207, 0.12);
  padding: 1.5rem 0;
  font-size: 0.85rem;
  color: var(--color-beige);
}

.site-footer a {
  color: var(--color-beige);
  text-decoration: none;
  transition: color 0.2s ease;
}

.site-footer a:hover,
.site-footer a:focus {
  color: var(--color-accent);
}

.footer-icons {
  display: flex;
  gap: 1.25rem;
  align-items: center;
}

.footer-icons a {
  display: inline-flex;
  align-items: center;
  font-size: 1.2rem;
  line-height: 1;
}

/* ---- About page ----------------------------------------------------------- */

/* Shared section padding */
.about-section {
  padding: 5rem 0;
}

/* Section 1: Opening — full viewport height, vertically centred */
.section-opening {
  min-height: 100vh;
  display: flex;
  align-items: center;
  padding-top: 80px;
  padding-bottom: 5rem;
}

.section-opening h1 {
  font-size: clamp(3rem, 8vw, 6rem);
  line-height: 1.1;
  margin-bottom: 1.5rem;
  cursor: default;
  pointer-events: none;
}

.section-opening .lead {
  font-size: 1.2rem;
  font-weight: 400;
  margin-bottom: 1.5rem;
}

/* Home hero modifier — 75vh, animated gradient */
.section-opening--home {
  min-height: 75vh;
  background: linear-gradient(
    135deg,
    #E3DBCF 0%,
    #E3DBCF 60%,
    #d4ccbf 80%,
    #E3DBCF 100%
  );
  background-size: 300% 300%;
  animation: hero-gradient 12s ease infinite;
  color: var(--color-navy);
}

.section-opening--home h1,
.section-opening--home .lead,
.section-opening--home p {
  color: var(--color-navy);
}

.section-opening--home .container {
  padding-left: 24px;
  padding-right: 24px;
}

@media (max-width: 767.98px) {
  .section-opening--home {
    min-height: 50vh;
  }
}

/* Subpage hero modifier — static beige, 75vh */
.section-opening--subpage {
  background: var(--color-beige);
  color: var(--color-navy);
  min-height: 75vh;
}

@media (max-width: 767.98px) {
  .section-opening--subpage {
    min-height: 50vh;
  }
}

.section-opening--subpage h1,
.section-opening--subpage .lead,
.section-opening--subpage p {
  color: var(--color-navy);
}

.section-opening--subpage .heading-ruled::before {
  background-color: var(--color-accent);
}

@keyframes hero-gradient {
  0%   { background-position: 0% 50%; }
  50%  { background-position: 100% 50%; }
  100% { background-position: 0% 50%; }
}

/* ---- Section background utilities ---------------------------------------- */

.section-navy {
  background-color: var(--color-navy);
  color: var(--color-beige);
}
.section-navy h1,
.section-navy h2,
.section-navy h3 {
  color: var(--color-beige);
}

.section-beige {
  background-color: var(--color-beige);
  color: var(--color-charcoal);
}
.section-beige h1,
.section-beige h2,
.section-beige h3 {
  color: var(--color-navy);
}

.section-offwhite {
  background-color: var(--color-offwhite);
  color: var(--color-charcoal);
}
.section-offwhite h1,
.section-offwhite h2,
.section-offwhite h3 {
  color: var(--color-navy);
}

.section-charcoal {
  background-color: var(--color-charcoal);
  color: var(--color-offwhite);
}
.section-charcoal h1,
.section-charcoal h2,
.section-charcoal h3 {
  color: var(--color-offwhite);
}

.section-lightgrey {
  background-color: var(--color-lightgrey);
  color: var(--color-charcoal);
}

.section-accent {
  background-color: var(--color-accent);
  color: #ffffff;
}
.section-accent h1,
.section-accent h2,
.section-accent h3 {
  color: #ffffff;
}

/* Accent rule above headings */
.heading-ruled::before {
  content: '';
  display: block;
  width: 3rem;
  height: 3px;
  background-color: var(--color-accent);
  margin-bottom: 1.25rem;
}

/* Centred variant: shift the rule to the middle */
.heading-ruled-center::before {
  margin-left: auto;
  margin-right: auto;
}

/* Stat blocks (Section 3 right column) */
.stat-block {
  background-color: rgba(255, 255, 255, 0.05);
  border-top: 3px solid var(--color-accent);
  padding: 2rem;
}

.stat-number {
  font-family: var(--font-display);
  font-size: 3.5rem;
  font-weight: 900;
  color: var(--color-accent);
  line-height: 1;
  margin-bottom: 0.5rem;
}

.stat-label {
  color: var(--color-beige);
  font-size: 0.95rem;
  line-height: 1.5;
}

/* Section 5: Contact CTA — extra vertical breathing room */
.section-contact {
  padding: 7rem 0;
}

/* ---- Wall of Brands ------------------------------------------------------- */

.brands-grid {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  align-items: center;
  gap: 2.5rem 3rem;
}

.brand-logo {
  width: 140px;
  height: 70px;
  object-fit: contain;
  object-position: center;
  filter: grayscale(100%) brightness(1.8);
  opacity: 0.6;
  transition: opacity 0.2s ease;
  display: block;
}

.brand-logo:hover {
  opacity: 1;
}

/* ---- Links page ----------------------------------------------------------- */

/* Full-viewport centred layout — no nav, no footer on this page */
.links-page {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 3rem 1.5rem;
}

/* Single column, constrained width */
.links-column {
  max-width: 480px;
  width: 100%;
}

/* Muted descriptor below name */
.links-descriptor {
  font-size: 0.875rem;
  opacity: 0.7;
  margin-bottom: 0;
}

/* Accent divider rule
   Bootstrap 5 resets <hr> to border-top + opacity: 0.25;
   override both so the element renders as a coloured bar */
.links-divider {
  border: none;
  height: 3px;
  width: 3rem;
  background-color: var(--color-accent);
  opacity: 1;
  margin: 1.75rem auto;
}

/* Full-width button-style link */
.link-btn {
  display: block;
  width: 100%;
  padding: 0.875rem 1.5rem;
  background-color: rgba(255, 255, 255, 0.04);
  border: 1px solid rgba(255, 255, 255, 0.15);
  border-radius: 6px;
  color: var(--color-beige);
  font-family: var(--font-body);
  font-weight: 600;
  font-size: 1rem;
  text-align: center;
  text-decoration: none;
  transition: background-color 0.2s ease, border-color 0.2s ease;
}

.link-btn:hover,
.link-btn:focus {
  background-color: rgba(255, 255, 255, 0.08);
  border-color: var(--color-accent);
  color: var(--color-beige);
  text-decoration: none;
}

/* Copyright note */
.links-copyright {
  font-size: 0.8rem;
  opacity: 0.5;
  margin-top: 3rem;
  margin-bottom: 0;
}

/* Links page h1 — override Bootstrap fs-2 */
.links-page h1 {
  font-size: clamp(2rem, 5vw, 3rem);
}

/* ---- Buttons -------------------------------------------------------------- */

.btn-base {
  display: inline-block;
  font-family: var(--font-body);
  font-weight: 600;
  font-size: 0.9rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  padding: 0.875rem 2rem;
  border-radius: 6px;
  text-decoration: none;
}

.btn-primary-brand {
  background-color: var(--color-accent);
  color: #ffffff;
  transition: background-color 0.2s ease;
}

.btn-primary-brand:hover,
.btn-primary-brand:focus {
  background-color: var(--color-accent-dark);
  color: #ffffff;
  text-decoration: none;
}

.btn-secondary-brand {
  background-color: transparent;
  color: var(--color-accent);
  border: 1.5px solid var(--color-accent);
  transition: background-color 0.2s ease, color 0.2s ease;
}

.btn-secondary-brand:hover,
.btn-secondary-brand:focus {
  background-color: var(--color-accent);
  color: #ffffff;
  text-decoration: none;
}

/* Button group for CTA sections */
.follow-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  justify-content: center;
  margin-top: 2rem;
}

/* ---- Homepage ------------------------------------------------------------- */

/* Scroll indicator — CSS-only animated chevron, decorative */
.scroll-indicator {
  display: inline-block;
  margin-top: 3rem;
  width: 20px;
  height: 20px;
  border-right: 2px solid var(--color-navy);
  border-bottom: 2px solid var(--color-navy);
  transform: rotate(45deg);
  opacity: 0.35;
  animation: scroll-bounce 2s ease-in-out infinite;
  text-decoration: none;
  cursor: pointer;
}

@keyframes scroll-bounce {
  0%, 100% { transform: rotate(45deg) translateY(0);   opacity: 0.35; }
  50%       { transform: rotate(45deg) translateY(7px); opacity: 0.65; }
}

/* ---- Problem cards -------------------------------------------------------- */

.problem-card {
  background-color: rgba(0, 0, 0, 0.04);
  border-top: 3px solid var(--color-accent);
  border-radius: 4px;
  padding: 1.5rem;
  height: 100%;
}

.problem-card p {
  font-size: 0.95rem;
  color: var(--color-charcoal);
  margin: 0;
  line-height: 1.5;
}

/* Contact section buttons (on accent/coloured background) */

.btn-contact-primary {
  background-color: #ffffff;
  color: var(--color-accent);
  transition: background-color 0.2s ease, color 0.2s ease;
}

.btn-contact-primary:hover,
.btn-contact-primary:focus {
  background-color: var(--color-navy);
  color: #ffffff;
  text-decoration: none;
}

.btn-contact-secondary {
  background-color: transparent;
  color: #ffffff;
  border: 1.5px solid rgba(255, 255, 255, 0.6);
  transition: background-color 0.2s ease, border-color 0.2s ease;
}

.btn-contact-secondary:hover,
.btn-contact-secondary:focus {
  background-color: rgba(255, 255, 255, 0.12);
  border-color: #ffffff;
  color: #ffffff;
  text-decoration: none;
}

/* Industry list */
.industry-list {
  list-style: none;
  padding: 0;
  margin: 0;
}

.industry-list li {
  padding: 0.5rem 0;
  border-bottom: 1px solid rgba(255, 255, 255, 0.15);
  font-size: 1rem;
}

.industry-list li:last-child {
  border-bottom: none;
}