@charset "UTF-8";


/* ==========================================================================
   1. INSTRUMENT SANS (Variable Fonts)
   ========================================================================== */

/* Sans Upright (Supports weights 400 to 700) */
@font-face {
  font-family: 'Instrument Sans';
  src: url('/static/font/instrument/instrumentsans-variable.ttf') format('truetype-variations');
  font-weight: 400 700;
  font-style: normal;
  font-display: swap;
}

/* Sans Italic (Supports weights 400 to 700) */
@font-face {
  font-family: 'Instrument Sans';
  src: url('/static/font/instrument/instrumentsans-italic-variable.ttf') format('truetype-variations');
  font-weight: 400 700;
  font-style: italic;
  font-display: swap;
}

/* ==========================================================================
   2. INSTRUMENT SERIF (Static Fonts - Only Regular 400 available)
   ========================================================================== */

/* Serif Upright */
@font-face {
  font-family: 'Instrument Serif';
  src: url('/static/font/instrument/instrumentserif.ttf') format('truetype');
  font-weight: 400;
  font-style: normal;
  font-display: swap;
}

/* Serif Italic */
@font-face {
  font-family: 'Instrument Serif';
  src: url('/static/font/instrument/instrumentserif-italic.ttf') format('truetype');
  font-weight: 400;
  font-style: italic;
  font-display: swap;
}

/* ==========================================================================
   3. IMPLEMENTATION EXAMPLES
   ========================================================================== */

* {
    font-family: 'Instrument Sans', sans-serif;
    scroll-behavior: smooth;
}

body {
    margin: 0;
    padding: 0;
    font-weight: 500;
    color: #191919;
    background-color: #fff;
}

h1, h2, h3, h4, h5, h6, p {
    margin: 0;
}

h1, h2, h1 span, h2 span {
font-family: 'Instrument Serif', sans-serif;
}

p {
    font-size: 18px;
    line-height: 1.6;
    font-weight: 500;
}

.vaan_container {
    max-width: 1300px;
    margin: auto;
    padding: 0 20px;
}


/* Header */

header {
  position: absolute;
  padding: 25px 0;
  width: 100%;
}

header nav .brand_logo img {
  max-width: 100px;
}

header nav {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

header nav .nav-links ul,
header nav .nav-links ul li {
  list-style: none;
}

header nav .nav-links ul {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 30px;
}

header nav .nav-links ul li a {
  font-size: 16px;
  font-weight: 600;
  color: #fff;
  text-decoration: none;
}

/* Footer */

footer {
  padding: 50px 0;
  background: #fff;
}

.branding_wrapper,
.vaan_footer_links,
.vaan_footer_links ul {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.vaan_footer_links ul,
.vaan_footer_links ul li {
  list-style: none;
}

.vaan_footer_links ul {
  gap: 20px;
}

.vaan_footer_links ul li a {
  color: #000;
}

footer .brand_logo img {
  max-width: 100px;
}

.vaan_legal {
  margin: 30px 0 0;
  padding: 30px 0 0;
  border-top: 1px solid #d2d2d2;
}

/* ==========================================================================
   SKIP LINK (Accessibility)
   ========================================================================== */

.skip-link {
  position: absolute;
  top: -48px;
  left: 16px;
  z-index: 9999;
  background: #084E91;
  color: #fff;
  padding: 10px 20px;
  border-radius: 4px;
  font-size: 14px;
  font-weight: 600;
  text-decoration: none;
  transition: top 0.2s ease;
}

.skip-link:focus {
  top: 12px;
}

/* ==========================================================================
   HAMBURGER BUTTON
   ========================================================================== */

.hamburger {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  cursor: pointer;
  background: none;
  border: none;
  padding: 8px;
  z-index: 1100;
  position: relative;
  -webkit-tap-highlight-color: transparent;
}

.hamburger span {
  display: block;
  width: 24px;
  height: 2px;
  background: #ffffff;
  border-radius: 2px;
  transition: transform 0.3s ease, opacity 0.3s ease;
  transform-origin: center;
}

.hamburger[aria-expanded="true"] span:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}

.hamburger[aria-expanded="true"] span:nth-child(2) {
  opacity: 0;
  transform: scaleX(0);
}

.hamburger[aria-expanded="true"] span:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

/* Prevent body scroll when mobile nav is open */
body.nav-open {
  overflow: hidden;
}

/* ==========================================================================
   RESPONSIVE — HEADER & FOOTER
   ========================================================================== */

/* Tablet (≤ 1023px) */
@media (max-width: 1023px) {
  header nav .brand_logo img {
    max-width: 85px;
  }
}

/* Tablet portrait & mobile (≤ 767px) */
@media (max-width: 767px) {
  .hamburger {
    display: flex;
  }

  .nav-links {
    position: fixed;
    inset: 0;
    width: 100%;
    height: 100dvh;
    background: rgba(4, 12, 24, 0.97);
    backdrop-filter: blur(14px);
    -webkit-backdrop-filter: blur(14px);
    display: flex;
    justify-content: center;
    align-items: center;
    opacity: 0;
    pointer-events: none;
    transform: translateX(100%);
    transition: opacity 0.35s ease, transform 0.35s cubic-bezier(0.4, 0, 0.2, 1);
    z-index: 1000;
  }

  .nav-links.is-open {
    opacity: 1;
    pointer-events: all;
    transform: translateX(0);
  }

  header nav .nav-links ul {
    flex-direction: column;
    gap: 44px;
    text-align: center;
    padding: 0;
    margin: 0;
  }

  header nav .nav-links ul li a {
    font-size: 30px;
    font-weight: 600;
    letter-spacing: 0.02em;
    opacity: 0.85;
    transition: opacity 0.2s;
  }

  header nav .nav-links ul li a:hover,
  header nav .nav-links ul li a:focus {
    opacity: 1;
  }

  /* Footer stacking */
  .branding_wrapper {
    flex-direction: column;
    gap: 24px;
    text-align: center;
  }

  .vaan_footer_links {
    flex-direction: column;
    gap: 14px;
  }

  .vaan_footer_links ul {
    flex-wrap: wrap;
    justify-content: center;
    gap: 16px;
  }

  footer .brand_logo img {
    max-width: 85px;
  }
}

/* Small mobile (≤ 479px) */
@media (max-width: 479px) {
  header nav .brand_logo img {
    max-width: 75px;
  }

  header {
    padding: 18px 0;
  }
}