/* ==========================================================================
   VitriMatics — custom styles layered on top of Bootstrap 5
   --------------------------------------------------------------------------
   Everything brand-specific lives here. Bootstrap handles the grid, navbar,
   cards, forms, and buttons; this file just re-skins them.

   To recolour the whole site, edit the CSS variables in :root below.
   ========================================================================== */

:root {
  /* Brand palette ------------------------------------------------------- */
  --vm-navy:        #0a1f2c;   /* deep slate — hero + footer background   */
  --vm-navy-2:      #10344a;   /* lighter slate for gradients             */
  --vm-cyan:        #159fc0;   /* primary accent (cryo / ice blue)        */
  --vm-cyan-bright: #2bc5e0;   /* hover / highlight accent                */
  --vm-ink:         #16242c;   /* body text                               */
  --vm-muted:       #5f7079;   /* secondary text                          */
  --vm-light:       #f6f9fa;   /* light section background                */
  --vm-border:      #e3eaed;   /* hairline borders                        */

  /* Type ---------------------------------------------------------------- */
  --vm-font-brand:   "Oxanium", system-ui, sans-serif;   /* company wordmark + eyebrow labels */
  --vm-font-display: "Sora", system-ui, sans-serif;      /* headings                          */
  --vm-font-body:    "Inter", system-ui, sans-serif;     /* body copy                         */
}

/* Base ---------------------------------------------------------------- */
html,
body {
  /* Safety net against horizontal scrolling (the "white bar on the right"
     on mobile). `clip` is used rather than `hidden` because it stops the
     sideways scroll without breaking the sticky navbar. */
  overflow-x: clip;
}
body {
  font-family: var(--vm-font-body);
  color: var(--vm-ink);
  background-color: #fff;
}

h1, h2, h3, h4, h5, h6, .navbar-brand {
  font-family: var(--vm-font-display);
  font-weight: 600;
  letter-spacing: -0.01em;
}

.text-muted-vm { color: var(--vm-muted) !important; }

/* Reusable accent helpers --------------------------------------------- */
.text-cyan   { color: var(--vm-cyan) !important; }
.bg-navy     { background-color: var(--vm-navy) !important; }
.bg-light-vm { background-color: var(--vm-light) !important; }

.eyebrow {
  font-family: var(--vm-font-brand);
  text-transform: uppercase;
  letter-spacing: 0.16em;
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--vm-cyan);
}

.section {
  padding-top: 5rem;
  padding-bottom: 5rem;
}

.section-tight {
  padding-top: 3rem;
  padding-bottom: 3rem;
}

/* Buttons ------------------------------------------------------------- */
.btn-cyan {
  background-color: var(--vm-cyan);
  border-color: var(--vm-cyan);
  color: #fff;
  font-weight: 500;
}
.btn-cyan:hover,
.btn-cyan:focus {
  background-color: var(--vm-cyan-bright);
  border-color: var(--vm-cyan-bright);
  color: #06222b;
}

.btn-outline-cyan {
  border-color: var(--vm-cyan);
  color: var(--vm-cyan);
  font-weight: 500;
}
.btn-outline-cyan:hover,
.btn-outline-cyan:focus {
  background-color: var(--vm-cyan);
  color: #fff;
}

.btn-outline-light-vm {
  border-color: rgba(255, 255, 255, 0.6);
  color: #fff;
  font-weight: 500;
}
.btn-outline-light-vm:hover {
  background-color: #fff;
  color: var(--vm-navy);
}

/* Navbar -------------------------------------------------------------- */
.navbar {
  border-bottom: 1px solid var(--vm-border);
  background-color: rgba(255, 255, 255, 0.96);
  backdrop-filter: blur(6px);
}
.navbar-brand img { height: 34px; width: auto; }
.navbar-brand {
  font-family: var(--vm-font-brand);
  font-weight: 700;
  font-size: 1.35rem;
  letter-spacing: 0.01em;
  color: var(--vm-navy);
  display: flex;
  align-items: center;
  gap: 0.6rem;
}
.navbar .nav-link {
  font-weight: 500;
  color: var(--vm-ink);
  padding-left: 1rem !important;
  padding-right: 1rem !important;
}
.navbar .nav-link:hover,
.navbar .nav-link.active {
  color: var(--vm-cyan);
}

/* Hero ---------------------------------------------------------------- */
.hero {
  background: linear-gradient(135deg, var(--vm-navy) 0%, var(--vm-navy-2) 100%);
  color: #fff;
  position: relative;
  overflow: hidden;
}
.hero::after {
  /* subtle "grid" texture reminiscent of a microscope field */
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(43, 197, 224, 0.06) 1px, transparent 1px),
    linear-gradient(90deg, rgba(43, 197, 224, 0.06) 1px, transparent 1px);
  background-size: 44px 44px;
  pointer-events: none;
}
.hero > .container { position: relative; z-index: 1; }
.hero h1 { font-size: clamp(2rem, 4vw, 3.25rem); line-height: 1.1; }
.hero .lead { color: rgba(255, 255, 255, 0.82); }

/* Page header (interior pages) ---------------------------------------- */
.page-header {
  background: linear-gradient(135deg, var(--vm-navy) 0%, var(--vm-navy-2) 100%);
  color: #fff;
  padding: 4.5rem 0;
}
.page-header h1 { font-size: clamp(1.9rem, 3.5vw, 2.8rem); }
.page-header p { color: rgba(255, 255, 255, 0.8); margin-bottom: 0; }

/* Cards --------------------------------------------------------------- */
.card {
  border: 1px solid var(--vm-border);
  border-radius: 0.75rem;
  transition: transform 0.18s ease, box-shadow 0.18s ease;
}
.card.card-hover:hover {
  transform: translateY(-4px);
  box-shadow: 0 12px 30px rgba(10, 31, 44, 0.1);
}
.feature-icon {
  width: 3rem;
  height: 3rem;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 0.65rem;
  background-color: rgba(21, 159, 192, 0.12);
  color: var(--vm-cyan);
  font-size: 1.35rem;
}

/* Logo cloud (Trusted by) --------------------------------------------- */
.logo-cloud img {
  height: 80px ;
  width: auto ;
  object-fit: contain;
  filter: grayscale(0%);
  opacity: 0.65;
  transition: opacity 0.2s ease, filter 0.2s ease, transform 0.25s ease;
}

.logo-cloud img:hover {
  filter: grayscale(0);
  opacity: 1;
  transform: scale(2.0);
}
/*.logo-cloud img {
  max-height: 70px;
  width: auto;
  filter: grayscale(100%);
  opacity: 0.65;
  transition: opacity 0.2s ease, filter 0.2s ease;
}
.logo-cloud img:hover {
  filter: grayscale(0);
  opacity: 1;
  transform: scale(2);*/

/* Carousel (photo deck) ----------------------------------------------- */
.photo-deck .carousel-item img {
  height: 460px;
  object-fit: cover;
  width: 100%;
  border-radius: 0.75rem;
}

/* Team ---------------------------------------------------------------- */
.team-photo {
  width: 100%;
  aspect-ratio: 1 / 1;
  object-fit: cover;
  border-radius: 0.75rem;
}

/* Footer -------------------------------------------------------------- */
.site-footer {
  background-color: var(--vm-navy);
  color: rgba(255, 255, 255, 0.7);
}
.site-footer a { color: rgba(255, 255, 255, 0.7); text-decoration: none; }
.site-footer a:hover { color: var(--vm-cyan-bright); }
.site-footer .footer-brand {
  color: #fff;
  font-family: var(--vm-font-brand);
  font-weight: 700;
  font-size: 1.25rem;
  letter-spacing: 0.01em;
}
.footer-tagline { color: var(--vm-cyan-bright); font-style: italic; }

/* Rounded media ------------------------------------------------------- */
.rounded-media { border-radius: 0.75rem; object-fit: cover; }

@media (max-width: 575.98px) {
  .photo-deck .carousel-item img { height: 300px; }
  .section { padding-top: 3.25rem; padding-bottom: 3.25rem; }
}

/* ==========================================================================
   Conference announcement (M&M 2026)
   Edit the copy directly in the HTML; colours are driven by the variables above.
   ========================================================================== */

/* Slim dismissible bar shown above the navbar on every page */
.announcement-bar {
  background: linear-gradient(135deg, var(--vm-cyan) 0%, var(--vm-cyan-bright) 100%);
  color: #06222b;
  font-size: 0.92rem;
}
.announcement-bar a {
  color: #06222b;
  font-weight: 600;
  text-decoration: underline;
  white-space: nowrap;
}
.announcement-bar a:hover { color: #fff; }
.announcement-bar .btn-close { font-size: 0.65rem; }

/* Homepage feature band */
.conf-card {
  background: linear-gradient(135deg, var(--vm-navy) 0%, var(--vm-navy-2) 100%);
}
.conf-label {
  text-transform: uppercase;
  letter-spacing: 0.12em;
  font-size: 0.72rem;
  color: var(--vm-cyan-bright);
  font-weight: 600;
}
.conf-card .conf-img {
  height: 100%;
  min-height: 260px;
  object-fit: cover;
  width: 100%;
}