/* Layout components: site header (+ mobile nav) and footer. */

/* ------------------------------------------------------------------ */
/* Header                                                               */
/* ------------------------------------------------------------------ */

.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  width: 100%;
  height: 80px;
  box-sizing: border-box;
  background: rgba(20, 110, 245, 0.02);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid rgba(255, 255, 255, 0.12);
  transition: transform 0.3s cubic-bezier(0.16, 1, 0.3, 1),
    background var(--motion-normal) var(--easing-standard),
    border-color var(--motion-normal) var(--easing-standard),
    box-shadow var(--motion-normal) var(--easing-standard);
  will-change: transform;
}

/* Scrolled state (clean light header with dark text) */
.site-header[data-scrolled="true"] {
  background: rgba(255, 255, 255, 0.96);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid #cfcfcf;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.06);
}

.site-header.header--hidden {
  transform: translateY(-100%);
  box-shadow: none;
}

.site-header__bar {
  display: flex;
  width: 100%;
  max-width: var(--size-container-max, 1600px);
  margin-inline: auto;
  height: 100%;
  padding: 0 var(--space-page-inline);
  align-items: center;
  justify-content: space-between;
  box-sizing: border-box;
}

@media (max-width: 480px) {
  .site-header {
    height: 60px;
  }
}

.site-header__brand {
  display: flex;
  align-items: center;
  gap: var(--ref-space-3, 12px);
  flex-shrink: 0;
  text-decoration: none;
}

@media (max-width: 480px) {
  .site-header__brand {
    gap: 10px;
  }
}

.site-header__brand img,
.site-header__logo {
  width: 50px;
  height: 50px;
}

.site-header__brand .site-header__logo--light {
  display: block;
}

.site-header__brand .site-header__logo--dark {
  display: none;
}

.site-header[data-scrolled="true"] .site-header__brand .site-header__logo--light {
  display: none;
}

.site-header[data-scrolled="true"] .site-header__brand .site-header__logo--dark {
  display: block;
}

@media (max-width: 480px) {
  .site-header__brand img,
  .site-header__logo {
    width: 40px;
    height: 40px;
  }
}

.site-header__wordmark {
  font-family: var(--font-family-brand);
  font-weight: 800;
  font-size: 1.65rem;
  color: #ffffff;
  letter-spacing: -0.02em;
  line-height: 1;
  transition: color var(--motion-fast) var(--easing-standard);
}

.site-header__wordmark span {
  color: var(--ref-color-blue-500, #146ef5);
}

.site-header[data-scrolled="true"] .site-header__wordmark {
  color: #111828;
}

.site-nav {
  display: none;
}

.site-header__cta {
  display: none;
}

.nav-toggle {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: var(--size-touch-min);
  height: var(--size-touch-min);
  border-radius: var(--radius-sm);
  color: var(--color-text-inverse);
  flex-shrink: 0;
  transition: color var(--motion-fast) var(--easing-standard);
}

.site-header[data-scrolled="true"] .nav-toggle {
  color: #111828;
}

/* --------------------------------------------------------------------------
   Desktop Navigation (>= 1024px)
   -------------------------------------------------------------------------- */
@media (min-width: 1024px) {
  .site-header__bar {
    padding: 0 clamp(14px, 1.8vw, 32px);
  }

  .site-header__brand {
    gap: clamp(10px, 1vw, 12px);
  }

  .site-header__brand img,
  .site-header__logo {
    width: clamp(43px, 3.6vw, 50px);
    height: clamp(43px, 3.6vw, 50px);
  }

  .site-header__wordmark {
    font-size: clamp(1.4rem, 1.2rem + 0.35vw, 1.85rem);
  }

  .site-nav {
    display: flex;
    align-items: center;
    gap: clamp(8px, 1.1vw, 24px);
  }

  .site-nav a {
    color: #ffffff;
    font-family: var(--font-family-primary);
    font-size: clamp(0.875rem, 0.8rem + 0.18vw, 1.0625rem);
    font-weight: 500;
    line-height: 1.2;
    text-decoration: none;
    white-space: nowrap;
    transition: color var(--motion-fast) var(--easing-standard),
      opacity var(--motion-fast) var(--easing-standard);
  }

  .site-nav a[aria-current="page"] {
    color: #f53614;
    font-weight: 500;
  }

  .site-nav a:not([aria-current="page"]):hover {
    color: #93c5fd;
    opacity: 1;
  }

  .site-nav a[aria-current="page"]:hover {
    color: #f53614;
    opacity: 1;
  }

  /* Scrolled nav item colors */
  .site-header[data-scrolled="true"] .site-nav a {
    color: #111827;
    opacity: 1;
  }

  .site-header[data-scrolled="true"] .site-nav a[aria-current="page"] {
    color: #f53614;
  }

  .site-header[data-scrolled="true"] .site-nav a:not([aria-current="page"]):hover {
    color: #0057d2;
    opacity: 1;
  }

  .site-header[data-scrolled="true"] .site-nav a[aria-current="page"]:hover {
    color: #f53614;
    opacity: 1;
  }

  .site-header__cta {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: clamp(6px, 0.6vw, 8px);
    min-height: 44px;
    padding: 8px clamp(12px, 1.3vw, 24px);
    border-radius: 10px;
    background: linear-gradient(157deg, #0057d2 0%, #5d9eff 50%, #0058d4 100%);
    color: #ffffff !important;
    font-family: var(--font-family-primary);
    font-size: clamp(0.875rem, 0.82rem + 0.15vw, 1.0625rem);
    font-weight: 600;
    line-height: 1.23;
    border: 1px solid transparent;
    box-shadow: 0 4px 16px rgba(0, 87, 210, 0.3);
    text-decoration: none;
    white-space: nowrap;
    flex-shrink: 0;
    transition: transform 0.75s cubic-bezier(0.25, 1, 0.5, 1),
      box-shadow 0.75s cubic-bezier(0.25, 1, 0.5, 1),
      background 0.75s cubic-bezier(0.25, 1, 0.5, 1),
      border-color 0.75s cubic-bezier(0.25, 1, 0.5, 1),
      color 0.75s cubic-bezier(0.25, 1, 0.5, 1);
  }

  .site-header__cta:hover {
    background: linear-gradient(157deg, #0048ad 0%, #4a8bee 50%, #0048ad 100%);
    color: #ffffff !important;
    transform: translateY(-2px);
    box-shadow: 0 8px 24px rgba(0, 87, 210, 0.45);
    border-color: transparent;
  }

  .site-header__cta:active {
    transform: translateY(1px);
    box-shadow: 0 2px 8px rgba(0, 87, 210, 0.25);
  }

  .site-header__cta:focus-visible {
    outline: none;
    box-shadow: var(--shadow-focus), 0 4px 16px rgba(0, 87, 210, 0.3);
  }

  .site-header__cta .icon {
    width: clamp(16px, 1.4vw, 20px);
    height: clamp(16px, 1.4vw, 20px);
    transition: transform 0.75s cubic-bezier(0.25, 1, 0.5, 1);
  }

  .site-header__cta:hover .icon {
    transform: translateX(2px);
  }

  /* Scrolled CTA (White Header) - Smoothly transitions to outline style matching Figma */
  .site-header[data-scrolled="true"] .site-header__cta {
    background: linear-gradient(157deg, #0057d2 0%, #5d9eff 50%, #0058d4 100%);
    color: #ffffff !important;
    border: 1px solid transparent;
    box-shadow: 0 4px 16px rgba(0, 87, 210, 0.3);
  }

  .site-header[data-scrolled="true"] .site-header__cta:hover {
    background: #ffffff !important;
    color: #0057d2 !important;
    border: 1px solid #0057d2;
    transform: translateY(-2px);
    box-shadow: 0 8px 24px rgba(0, 87, 210, 0.18);
  }

  .site-header[data-scrolled="true"] .site-header__cta:active {
    background: #f4f8fd !important;
    transform: translateY(1px);
    box-shadow: 0 2px 8px rgba(0, 87, 210, 0.12);
  }

  .nav-toggle {
    display: none;
  }
}

/* Medium & Large Desktop (>= 1200px) */
@media (min-width: 1200px) {
  .site-header__bar {
    padding: 0 clamp(20px, 2.5vw, 40px);
  }

  .site-header__brand {
    gap: var(--ref-space-3, 12px);
  }

  .site-header__brand img,
  .site-header__logo {
    width: 50px;
    height: 50px;
  }

  .site-header__wordmark {
    font-size: clamp(1.65rem, 1.4rem + 0.35vw, 1.85rem);
  }

  .site-nav {
    gap: clamp(14px, 1.4vw, 28px);
  }

  .site-nav a {
    font-size: clamp(0.95rem, 0.88rem + 0.2vw, 1.1rem);
  }

  .site-header__cta {
    min-height: 48px;
    padding: 10px clamp(16px, 1.5vw, 28px);
    font-size: clamp(0.95rem, 0.9rem + 0.15vw, 1.05rem);
  }

  .site-header__cta .icon {
    width: 20px;
    height: 20px;
  }
}

/* Extra Large Desktop (>= 1600px) */
@media (min-width: 1600px) {
  .site-header {
    height: 95px;
  }

  .site-header__bar {
    padding: 0 var(--space-page-inline, 60px);
  }

  .site-header__brand {
    gap: var(--ref-space-3, 12px);
  }

  .site-header__brand img,
  .site-header__logo {
    width: 63px;
    height: 63px;
  }

  .site-header__wordmark {
    font-size: 2.375rem;
  }

  .site-nav {
    gap: 40px;
  }

  .site-nav a {
    font-size: 1.25rem;
  }

  .site-header__cta {
    min-height: 65px;
    padding: 19px 42px;
    font-size: 1.375rem;
  }

  .site-header__cta .icon {
    width: 24px;
    height: 24px;
  }
}

.nav-toggle__icon {
  position: relative;
  width: 22px;
  height: 16px;
}

.nav-toggle__icon span {
  position: absolute;
  left: 0;
  width: 100%;
  height: 2px;
  background: currentColor;
  border-radius: 1px;
  transition: transform var(--motion-normal) var(--easing-standard),
    opacity var(--motion-normal) var(--easing-standard),
    top var(--motion-normal) var(--easing-standard);
}

.nav-toggle__icon span:nth-child(1) {
  top: 0;
}

.nav-toggle__icon span:nth-child(2) {
  top: 7px;
}

.nav-toggle__icon span:nth-child(3) {
  top: 14px;
}

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

.nav-toggle[aria-expanded="true"] .nav-toggle__icon span:nth-child(2) {
  opacity: 0;
}

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

/* Mobile nav panel */
.mobile-nav {
  position: fixed;
  inset: 0;
  z-index: 2000;
  background: #0d1527;
  display: flex;
  flex-direction: column;
  height: 100vh;
  height: 100dvh;
  max-height: 100dvh;
  padding: 0 var(--space-page-inline);
  overflow: hidden;
  overscroll-behavior: none;
  transform: translateX(100%);
  visibility: hidden;
  pointer-events: none;
  transition: transform var(--motion-slow) var(--easing-standard),
    visibility var(--motion-slow);
}

.mobile-nav[data-open="true"] {
  transform: translateX(0);
  visibility: visible;
  pointer-events: auto;
}

@media (min-width: 1024px) {
  .mobile-nav {
    display: none;
  }
}

.mobile-nav__header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 72px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
  padding: 12px 0;
  flex-shrink: 0;
}

@media (max-width: 480px) {
  .mobile-nav__header {
    min-height: 60px;
    padding: 10px 0;
  }
}

.mobile-nav__close {
  width: 44px;
  height: 44px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: transparent;
  border: none;
  color: #ffffff;
  border-radius: var(--radius-sm);
  font-size: 2rem;
  line-height: 1;
  cursor: pointer;
  padding: 0;
  transition: opacity var(--motion-fast);
}

.mobile-nav__close:hover {
  opacity: 0.8;
}

.mobile-nav__links {
  display: flex;
  flex-direction: column;
  gap: 0;
  flex: 1 1 auto;
  min-height: 0;
  overflow-y: auto;
  -webkit-overflow-scrolling: touch;
  overscroll-behavior-y: contain;
  touch-action: pan-y;
  padding: 8px 0 16px;
}

.mobile-nav__links a {
  display: block;
  padding: 16px 4px;
  font-size: 1.25rem;
  font-weight: var(--font-weight-medium);
  color: #ffffff;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
  text-decoration: none;
  transition: color var(--motion-fast);
  flex-shrink: 0;
}

.mobile-nav__links a:not([aria-current="page"]):hover {
  color: #93c5fd;
}

.mobile-nav__links a[aria-current="page"] {
  color: #f53614;
}

.mobile-nav__links a[aria-current="page"]:hover {
  color: #f53614;
}

.mobile-nav__cta {
  flex-shrink: 0;
  padding-top: 16px;
  padding-bottom: max(16px, env(safe-area-inset-bottom, 16px));
  background: #0d1527;
  border-top: 1px solid rgba(255, 255, 255, 0.08);
}

.mobile-nav__cta .btn {
  width: 100%;
}

html[data-nav-open="true"],
body[data-nav-open="true"] {
  overflow: hidden !important;
  height: 100% !important;
  overscroll-behavior: none !important;
}

body[data-nav-open="true"] .site-header {
  visibility: hidden;
  pointer-events: none;
}