/* ========== TOP NAV ========== */
  .nav {
    position: sticky; top: 0; z-index: 50;
    background: rgba(255,255,255,0.85);
    backdrop-filter: saturate(180%) blur(14px);
    -webkit-backdrop-filter: saturate(180%) blur(14px);
    border-bottom: 1px solid rgba(232,236,243,0.6);
  }
  .nav-inner {
    display: flex; align-items: center; justify-content: space-between;
    height: 76px; max-width: 1240px; margin: 0 auto; padding: 0 32px;
  }
  .brand { display: flex; align-items: center; gap: 12px; }
  .brand-mark {
    width: 38px; height: 38px;
    border-radius: 10px;
    background: var(--btn-gradient);
    display: grid; place-items: center;
    color: #fff;
    font-family: "Instrument Serif", serif;
    font-style: italic;
    font-size: 22px;
    box-shadow: 0 6px 14px rgba(29,78,216,0.28);
  }
  .brand-logo {
    display: block;
    width: auto;
    height: 36px;
    height: 60px;
    object-fit: contain;
  }
  .brand-text { line-height: 1; }
  .brand-name { font-weight: 700; font-size: 16px; letter-spacing: 0.02em; }
  .brand-sub { font-family: "Manrope", sans-serif; font-size: 9px; color: var(--gray-500); letter-spacing: 0.32em; margin-top: 4px; }

  .nav-menu { display: flex; align-items: center; gap: 36px; }
  .nav-menu a {
    font-size: 14px; font-weight: 500; color: var(--gray-700);
    transition: color .2s;
    display: inline-flex; align-items: center; gap: 4px;
  }
  .nav-menu a:hover { color: var(--ink); }
  .nav-cta { display: flex; align-items: center; gap: 12px; }

  /* ========== Hamburger Button ========== */
  .nav-hamburger {
    display: flex;
    background: none;
    border: 0;
    cursor: pointer;
    padding: 0;
    width: 44px;
    height: 44px;
    flex-direction: column;
    justify-content: center;
    align-items: flex-start;
    gap: 5px;
    position: relative;
    z-index: 60;
  }
  .nav-hamburger span {
    display: block;
    height: 2px;
    background: var(--ink);
    border-radius: 1px;
    transition: all .3s cubic-bezier(0.4, 0.0, 0.2, 1);
    transform-origin: center;
  }
  .nav-hamburger span:nth-child(1) { width: 26px; }
  .nav-hamburger span:nth-child(2) { width: 20px; }
  .nav-hamburger span:nth-child(3) { width: 14px; }
  .nav-hamburger.is-active span {
    width: 26px;
    align-self: center;
  }
  .nav-hamburger.is-active span:nth-child(1) {
    transform: translateY(7px) rotate(45deg);
  }
  .nav-hamburger.is-active span:nth-child(2) {
    opacity: 0;
    transform: scaleX(0);
  }
  .nav-hamburger.is-active span:nth-child(3) {
    transform: translateY(-7px) rotate(-45deg);
  }

  /* ========== Mobile Drawer Menu ========== */
  .nav-overlay {
    position: fixed;
    inset: 0;
    background: rgba(10, 21, 48, 0.45);
    backdrop-filter: blur(4px);
    -webkit-backdrop-filter: blur(4px);
    z-index: 54;
    opacity: 0;
    visibility: hidden;
    transition: opacity .35s ease, visibility .35s ease;
  }
  .nav-overlay.is-open {
    opacity: 1;
    visibility: visible;
  }
  .nav-drawer {
    position: fixed;
    top: 0;
    right: 0;
    width: 100%;
    max-width: 420px;
    height: 100vh;
    background: rgba(255, 255, 255, 0.78);
    backdrop-filter: saturate(180%) blur(22px);
    -webkit-backdrop-filter: saturate(180%) blur(22px);
    box-shadow: -8px 0 30px rgba(10, 15, 31, 0.12);
    z-index: 55;
    transform: translateX(100%);
    transition: transform .4s cubic-bezier(0.4, 0.0, 0.2, 1);
    display: flex;
    flex-direction: column;
    padding: 96px 32px 40px;
    overflow-y: auto;
    visibility: hidden;
    border-left: 1px solid rgba(255, 255, 255, 0.4);
  }
  .nav-drawer.is-open {
    transform: translateX(0);
    visibility: visible;
  }
  .nav-drawer-title {
    position: absolute;
    top: 36px;
    left: 32px;
    font-family: "Manrope", sans-serif;
    font-size: 13px;
    font-weight: 700;
    color: var(--ink);
    letter-spacing: 0.36em;
    text-transform: uppercase;
    display: inline-flex;
    align-items: center;
    gap: 14px;
    line-height: 1;
  }
  .nav-drawer-title::before {
    content: "";
    width: 28px;
    height: 1px;
    background: var(--blue);
    display: block;
  }
  .nav-drawer-close {
    position: absolute;
    top: 24px;
    right: 24px;
    width: 44px;
    height: 44px;
    background: var(--gray-50);
    border: 1px solid var(--line);
    border-radius: 50%;
    cursor: pointer;
    display: grid;
    place-items: center;
    color: var(--ink);
    transition: all .3s cubic-bezier(0.4, 0.0, 0.2, 1);
    padding: 0;
    z-index: 5;
  }
  .nav-drawer-close:hover {
    background: var(--ink);
    color: #fff;
    border-color: var(--ink);
    transform: rotate(90deg);
  }
  .nav-drawer-close svg {
    width: 18px;
    height: 18px;
    stroke-width: 2.2;
  }
  .nav-drawer-links {
    display: flex;
    flex-direction: column;
    gap: 0;
  }
  .nav-drawer-links a {
    font-family: "Manrope", sans-serif;
    font-size: 18px;
    font-weight: 600;
    color: var(--ink);
    padding: 22px 4px;
    border-bottom: 1px solid var(--line);
    display: flex;
    align-items: center;
    justify-content: space-between;
    transition: color .2s, padding-left .2s;
    letter-spacing: 0.01em;
  }
  .nav-drawer-links a:first-child {
    border-top: 1px solid var(--line);
  }
  .nav-drawer-links a:hover {
    color: var(--blue);
    padding-left: 8px;
  }
  .nav-drawer-links a .jp {
    font-size: 11px;
    color: var(--gray-500);
    letter-spacing: 0.18em;
    margin-left: 12px;
    font-weight: 500;
  }
  .nav-drawer-links a::after {
    content: "";
    width: 8px;
    height: 8px;
    border-top: 2px solid var(--gray-400);
    border-right: 2px solid var(--gray-400);
    transform: rotate(45deg);
    transition: border-color .2s, transform .2s;
    margin-left: auto;
  }
  .nav-drawer-links a:hover::after {
    border-color: var(--blue);
    transform: rotate(45deg) translate(2px, -2px);
  }
  .nav-drawer-cta {
    margin-top: auto;
    padding-top: 40px;
  }
  .nav-drawer-cta .btn-blue-large {
    width: 100%;
    justify-content: center;
  }
  .nav-drawer-foot {
    margin-top: 28px;
    font-size: 11px;
    color: var(--gray-500);
    letter-spacing: 0.16em;
    text-align: center;
  }
  .btn-outline {
    display: inline-flex; align-items: center; gap: 10px;
    padding: 10px 18px;
    border-radius: 999px;
    background: #fff;
    border: 1px solid var(--gray-200);
    font-size: 13px; font-weight: 600; color: var(--ink);
    transition: all .2s;
  }
  .btn-outline:hover { border-color: var(--ink); }
  .btn-primary-pill {
    display: inline-flex; align-items: center; gap: 8px;
    padding: 11px 18px 11px 20px;
    border-radius: 999px;
    background: var(--btn-gradient);
    color: #fff;
    font-size: 13px; font-weight: 600;
    box-shadow: 0 4px 12px rgba(29,78,216,0.32);
    transition: all .25s;
  }
  .btn-primary-pill:hover {
    background: var(--btn-gradient-hover);
    transform: translateY(-1px);
    box-shadow: 0 6px 16px rgba(30,58,138,0.42);
  }

@media (max-width: 960px) {
    .nav-menu { display: none; }
    .nav-cta .btn-outline { display: none; }
    .nav-cta .btn-primary-pill { display: none; }
    .brand-logo { height: 34px; }
}
@media (max-width: 768px) {
    .nav-inner { padding: 0 20px; height: 68px; }
    .brand-logo { height: 45px; }
    .nav-drawer { max-width: 100%; padding: 88px 28px 36px; }
    .nav-drawer-links a { font-size: 17px; padding: 18px 4px; }
    .nav-drawer-title { top: 30px; left: 28px; }
    .nav-drawer-close { top: 18px; right: 18px; width: 40px; height: 40px; }
}
@media (max-width: 560px) {
    .nav-inner { padding: 0 18px; height: 60px; }
    /* .brand-logo { height: 45px; } */
    .nav-drawer { padding: 80px 24px 32px; }
    .nav-drawer-title { top: 26px; left: 24px; font-size: 12px; }
    .nav-drawer-close { top: 14px; right: 14px; width: 38px; height: 38px; }
    .nav-drawer-close svg { width: 16px; height: 16px; }
    .nav-drawer-links a { font-size: 16px; padding: 16px 4px; }
    .nav-drawer-links a .jp { font-size: 10px; }
    .btn-blue-large { font-size: 13px; padding: 14px 18px 14px 22px; }
}

/* ========== BTN-BLUE-LARGE ========== */
.btn-blue-large {
  display: inline-flex; align-items: center; gap: 14px;
  padding: 16px 22px 16px 28px;
  border-radius: 999px;
  background: var(--btn-gradient);
  color: #fff;
  font-size: 14px; font-weight: 600;
  box-shadow: 0 10px 26px rgba(29,78,216,0.34);
  transition: all .25s;
}
.btn-blue-large:hover {
  background: var(--btn-gradient-hover);
  transform: translateY(-2px);
  box-shadow: 0 14px 32px rgba(30,58,138,0.45);
}
.btn-blue-large .arrow {
  width: 28px; height: 28px; border-radius: 999px;
  background: rgba(255,255,255,0.22);
  display: grid; place-items: center;
}