/* ============================================================
   GLOBAL VARIABLES & RESET
   ============================================================ */
:root {
  --color-primary:  #0044FF;
  --color-dark:     #111827;
  --color-light:    #F3F4F6;
  --color-mid:      #6B7280;
  --color-card-bg:  rgba(17, 24, 39, 0.82);
  --color-white:    #FFFFFF;

  --font-sans: 'Inter', system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;

  --radius-sm:  6px;
  --radius-md:  12px;
  --radius-lg:  20px;
  --radius-pill: 9999px;

  --transition: 0.25s ease;

  /* Spacing scale */
  --space-xs:   0.5rem;
  --space-sm:   1rem;
  --space-md:   2rem;
  --space-lg:   4rem;
  --space-xl:   6rem;
  --space-2xl:  8rem;
}

*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
  font-size: 16px;
}

body {
  font-family: var(--font-sans);
  background: var(--color-white);
  color: var(--color-dark);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

img {
  display: block;
  max-width: 100%;
  height: auto;
}

a {
  text-decoration: none;
  color: inherit;
}

/* ============================================================
   UTILITY: CONTAINER
   ============================================================ */
.container {
  width: 100%;
  max-width: 1280px;
  margin-inline: auto;
  padding-inline: clamp(1.25rem, 5vw, 4rem);
}

/* ============================================================
   UTILITY: BUTTONS
   ============================================================ */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.6rem 1.5rem;
  border-radius: var(--radius-pill);
  font-family: var(--font-sans);
  font-size: 0.9rem;
  font-weight: 600;
  cursor: pointer;
  border: 2px solid transparent;
  transition: background var(--transition), color var(--transition), border-color var(--transition), transform var(--transition), box-shadow var(--transition);
  white-space: nowrap;
}

.btn--outline {
  background: transparent;
  border-color: var(--color-dark);
  color: var(--color-dark);
}
.btn--outline:hover {
  background: var(--color-dark);
  color: var(--color-white);
  transform: translateY(-1px);
}

.btn--primary {
  background: var(--color-primary);
  border-color: var(--color-primary);
  color: var(--color-white);
}
.btn--primary:hover {
  background: #0033cc;
  border-color: #0033cc;
  transform: translateY(-1px);
  box-shadow: 0 4px 16px rgba(0, 68, 255, 0.35);
}

.btn--dark {
  background: var(--color-dark);
  border-color: var(--color-dark);
  color: var(--color-white);
  padding: 0.7rem 2rem;
}
.btn--dark:hover {
  background: #1f2937;
  border-color: #1f2937;
  transform: translateY(-1px);
  box-shadow: 0 4px 16px rgba(17, 24, 39, 0.25);
}

/* ============================================================
   UTILITY: SECTION TYPOGRAPHY
   ============================================================ */
.section-title {
  font-size: clamp(1.75rem, 3vw, 2.5rem);
  font-weight: 800;
  letter-spacing: -0.02em;
  color: var(--color-dark);
  margin-bottom: var(--space-sm);
}

.section-body {
  font-size: 1rem;
  color: var(--color-mid);
  max-width: 640px;
  line-height: 1.75;
  margin-bottom: var(--space-md);
}

/* ============================================================
   NAVIGATION
   ============================================================ */
.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  padding: 0.6rem 0;
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  transition: background var(--transition), backdrop-filter var(--transition), box-shadow var(--transition);
}

.nav.scrolled {
  box-shadow: 0 1px 24px rgba(0,0,0,0.08);
}

.nav__inner {
  width: 100%;
  max-width: 1280px;
  margin-inline: auto;
  padding-inline: clamp(1.25rem, 5vw, 4rem);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.nav__logo {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.nav__logo-img {
  height: 68px;
  width: auto;
}

.nav__logo-fallback {
  display: none;
  font-size: 1.3rem;
  font-weight: 800;
  color: var(--color-white);
  letter-spacing: -0.03em;
}

.nav.scrolled .nav__logo-fallback {
  color: var(--color-dark);
}

.nav.scrolled .btn--outline {
  border-color: var(--color-dark);
  color: var(--color-dark);
}

.nav__actions {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

/* On hero (transparent nav) keep buttons visible */
.nav:not(.scrolled) .btn--outline {
  border-color: rgba(0, 0, 0, 0.9);
  color: var(--color-dark);
}
.nav:not(.scrolled) .btn--outline:hover {
  background: rgba(255,255,255,0.15);
  color: var(--color-primary);
  border-color:var(--color-primary);
}

/* ============================================================
   HERO SLIDER
   ============================================================ */
.hero {
  width: 100%;
  max-width: 1280px;
  margin-inline: auto;
  padding-top: 100px;
  padding-inline: 24px;
  background: var(--color-white);
}

.hero__box {
  position: relative;
  width: 100%;
  height: calc((100svh - 100px - 2.5rem) * 0.7);
  min-height: 420px;
  border-radius: 40px;
  overflow: hidden;
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
}

/* Video background */
.hero__video {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
  animation: heroVideoIn 1.6s cubic-bezier(0.22, 1, 0.36, 1) both;
}

@keyframes heroVideoIn {
  from {
    opacity: 0;
    transform: scale(1.08) translateX(30px);
  }
  to {
    opacity: 1;
    transform: scale(1) translateX(0);
  }
}

/* Gradient overlay: darkens bottom for card readability */
.hero__overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(
    to bottom,
    rgba(0,0,0,0.05) 0%,
    rgba(0,0,0,0.08) 35%,
    rgba(0,0,0,0.55) 65%,
    rgba(0,0,0,0.80) 100%
  );
  pointer-events: none;
}

/* Content sits above overlay */
.hero__content {
  position: relative;
  z-index: 2;
  width: 100%;
  max-width: 1280px;
  margin-inline: auto;
  padding-inline: clamp(1.25rem, 5vw, 4rem);
  margin-bottom: 2rem;
}

.hero__headline {
  margin-bottom: 2.5rem;
}

.headline-slider {
  position: relative;
  width: 100%;
  max-width: 480px;
  height: 200px;
  margin-bottom: 2.5rem;
}

.headline-slide {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  object-fit: contain;
  object-position: left center;
  opacity: 0;
  transition: opacity 0.8s cubic-bezier(0.22, 1, 0.36, 1);
  pointer-events: none;
}

.headline-slide.active {
  opacity: 1;
}

@media (max-width: 900px) {
  .headline-slider {
    max-width: 320px;
    height: 100px;
    margin-bottom: 1.5rem;
  }
}

/* Feature cards */
.hero__cards {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1rem;
  margin-bottom: 1.75rem;
}

/* Desktop: show inline (inside box), hide below */
.hero__cards--inline   { display: grid; }
.hero__cards--below    { display: none; }
.hero__disclaimer--inline { display: block; }
.hero__disclaimer--below  { display: none; }

.card {
  background: var(--color-card-bg);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border: 1px solid rgba(255,255,255,0.1);
  border-radius: var(--radius-md);
  padding: 1.25rem 1.25rem 1rem;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  transition: transform var(--transition), border-color var(--transition);
}

.card:hover {
  transform: translateY(-3px);
  border-color: rgba(0, 68, 255, 0.45);
}

.card__title {
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--color-white);
  line-height: 1.4;
}

.card__sub {
  font-size: 0.78rem;
  color: var(--color-primary);
  font-weight: 500;
}

.card__link {
  align-self: flex-end;
  margin-top: auto;
  color: var(--color-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  width: 28px;
  height: 28px;
  border-radius: 50%;
  transition: background var(--transition), color var(--transition);
}

.card__link:hover {
  background: var(--color-primary);
  color: var(--color-white);
}

/* Disclaimer */
.hero__disclaimer {
  font-size: 0.82rem;
  color: rgba(243, 244, 246, 0.85);
  line-height: 1.6;
}

.hero__disclaimer-link {
  color: var(--color-primary);
  font-weight: 600;
  margin-left: 0.25rem;
  transition: opacity var(--transition);
}
.hero__disclaimer-link:hover {
  opacity: 0.8;
  text-decoration: underline;
}


/* ============================================================
   PARTNERS
   ============================================================ */
.partners {
  padding-block: var(--space-lg);
}

.partners__grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1.5rem;
}

.partner-logo {
  background: var(--color-white);
  border-radius: var(--radius-md);
  padding: 1.5rem 1.25rem;
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 96px;
  border: 1px solid #E5E7EB;
  transition: box-shadow var(--transition), transform var(--transition);
}

.partner-logo:hover {
  box-shadow: 0 6px 24px rgba(0,0,0,0.08);
  transform: translateY(-3px);
}

.partner-logo img {
  max-height: 52px;
  width: auto;
  object-fit: contain;
}

.partner-placeholder {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--color-mid);
  text-align: center;
}

/* ============================================================
   CONTACT
   ============================================================ */
.contact {
  border-top: 1px solid #E5E7EB;
  padding-block: var(--space-lg);
}

.contact__inner {
  display: flex;
  align-items: center;
  gap: clamp(2rem, 5vw, 5rem);
  flex-wrap: wrap;
}

.contact__inner .section-title {
  flex-shrink: 0;
  margin-bottom: 0;
  font-size: clamp(1.75rem, 3vw, 2.25rem);
}

.contact__form {
  flex: 1;
  display: flex;
  align-items: center;
  gap: 0.75rem;
  flex-wrap: wrap;
  min-width: 280px;
}

.form-input {
  flex: 1;
  min-width: 140px;
  padding: 0.7rem 1rem;
  border: 1.5px solid #D1D5DB;
  border-radius: var(--radius-sm);
  font-family: var(--font-sans);
  font-size: 0.9rem;
  color: var(--color-dark);
  background: var(--color-white);
  transition: border-color var(--transition), box-shadow var(--transition);
  outline: none;
}

.form-input::placeholder {
  color: #9CA3AF;
}

.form-input:focus {
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(0, 68, 255, 0.12);
}

.form-input--message {
  resize: none;
  overflow: hidden;
  line-height: 1.5;
  min-height: 42px;
  transition: border-color var(--transition), box-shadow var(--transition), height 0.15s ease;
}

.contact__status {
  font-size: 0.85rem;
  margin-top: 0.5rem;
  min-height: 1.2em;
}

.contact__status--success {
  color: #16a34a;
}

.contact__status--error {
  color: #dc2626;
}

/* ============================================================
   FOOTER
   ============================================================ */
.footer {
  background: var(--color-white);
  border-top: 1px solid #E5E7EB;
  padding-block: 1.75rem;
}

.footer__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 1rem;
}

.footer__copy {
  font-size: 0.82rem;
  color: var(--color-mid);
}

.footer__links {
  display: flex;
  gap: 1.5rem;
}

.footer__links a {
  font-size: 0.82rem;
  color: var(--color-mid);
  transition: color var(--transition);
}

.footer__links a:hover {
  color: var(--color-dark);
}

/* ============================================================
   RESPONSIVE
   ============================================================ */
@media (max-width: 900px) {
  .partners__grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 768px) {
  /* Logo: half the desktop size */
  .nav__logo-img {
    height: 44px;
  }

  /* Hero section: no side padding, no top padding override */
  .hero {
    padding-inline: 16px;
    padding-top: 80px;
  }

  /* Hero box: full-width video only, shorter height */
  .hero__box {
    height: 56vw;
    min-height: 220px;
    border-radius: 20px;
  }

  /* Headline slider inside video: smaller */
  .headline-slider {
    max-width: 200px;
    height: 80px;
    margin-bottom: 0;
  }

  /* Content padding inside box */
  .hero__content {
    padding-inline: 1rem;
    margin-bottom: 1rem;
  }

  /* Hide cards & disclaimer inside video box on mobile */
  .hero__cards--inline    { display: none; }
  .hero__disclaimer--inline { display: none; }

  /* Show cards & disclaimer below video box on mobile */
  .hero__cards--below {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
    margin-top: 1rem;
  }

  .hero__disclaimer--below {
    display: block;
    font-size: 0.78rem;
    color: var(--color-mid);
    line-height: 1.6;
    margin-top: 0.75rem;
    padding-inline: 0;
  }

  .hero__disclaimer--below .hero__disclaimer-link {
    color: var(--color-primary);
  }

  /* Light card style for below-video cards */
  .card--light {
    background: var(--color-primary);
    backdrop-filter: none;
    -webkit-backdrop-filter: none;
    border: 1px solid #E5E7EB;
  }

  .card--light .card__title {
    color: var(--color-light);
  }

  .card__link--dark {
    color: var(--color-light);
  }
}

@media (max-width: 640px) {
  .contact__inner {
    flex-direction: column;
    align-items: flex-start;
    gap: 1.5rem;
  }

  .contact__form {
    width: 100%;
    flex-direction: column;
  }

  .form-input {
    width: 100%;
  }

  .btn--dark {
    width: 100%;
  }

  .footer__inner {
    flex-direction: column;
    align-items: flex-start;
  }

  .partners__grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 1rem;
  }
}