@layer base {
  body {
    font-family: var(--font-sans);
    color: var(--color-text);
    background: var(--color-bg);
    font-size: 16px;
  }

  .container {
    width: 100%;
    max-width: var(--container-max);
    margin-inline: auto;
    padding-inline: clamp(1.25rem, 4vw, 2rem);
  }

  .section { padding-block: var(--space-section); }
  .section-sm { padding-block: var(--space-section-sm); }

  .eyebrow {
    display: inline-block;
    font-size: 0.875rem;
    font-weight: 600;
    letter-spacing: 0.05em;
    text-transform: uppercase;
    color: var(--color-primary);
    margin-block-end: 0.75rem;
  }

  .section-title {
    font-size: clamp(2rem, 4vw, 2.75rem);
    font-weight: 800;
    letter-spacing: -0.02em;
    margin-block-end: 0.75rem;
  }

  .section-subtitle {
    font-size: 1.125rem;
    color: var(--color-text-muted);
    max-width: 60ch;
    margin-block-end: 3rem;
  }

  .gradient-text {
    background: var(--gradient-brand);
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
  }
}

@layer components {

  /* ---------- BUTTONS ---------- */
  .btn {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.875rem 1.5rem;
    border-radius: var(--radius-btn);
    font-weight: 600;
    font-size: 0.95rem;
    transition: background var(--transition), color var(--transition),
                transform var(--transition), box-shadow var(--transition);
    white-space: nowrap;
    cursor: pointer;
    border: 2px solid transparent;

    & i, & svg { width: 1.1em; height: 1.1em; }

    &:hover { transform: translateY(-1px); }
    &:active { transform: translateY(0); }
  }

  .btn-primary {
    background: var(--color-primary);
    color: white;

    &:hover { background: var(--color-primary-hover); box-shadow: 0 8px 20px color-mix(in srgb, var(--color-primary-hex) 35%, transparent); }
  }

  .btn-secondary {
    background: transparent;
    color: var(--color-primary);
    border-color: var(--color-primary);

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

  .btn-white {
    background: white;
    color: var(--color-primary);

    &:hover { background: var(--color-accent); }
  }

  .btn-pill {
    border-radius: var(--radius-pill);
  }

  /* ---------- CARDS ---------- */
  .card {
    background: var(--color-bg);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-card);
    padding: 2rem;
    transition: transform var(--transition), box-shadow var(--transition), border-color var(--transition);
    container-type: inline-size;

    &:hover {
      transform: translateY(-4px);
      box-shadow: var(--shadow-card-hover);
      border-color: transparent;
    }

    & .card__icon {
      width: 56px;
      height: 56px;
      border-radius: 14px;
      display: grid;
      place-items: center;
      margin-block-end: 1.25rem;
      background: var(--color-accent);
      color: var(--color-primary);

      & i, & svg { width: 28px; height: 28px; }
    }

    & .card__icon--cyan {
      background: color-mix(in oklch, var(--color-secondary) 15%, white);
      color: var(--color-secondary-hex);
    }

    & .card__icon--gradient {
      background: var(--gradient-brand);
      color: white;
    }

    & .card__title {
      font-size: 1.25rem;
      font-weight: 700;
      margin-block-end: 0.75rem;
    }

    & .card__text { color: var(--color-text-muted); line-height: 1.6; }
  }

  /* ---------- BADGE / PILL ---------- */
  .badge {
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;
    padding: 0.4rem 0.9rem;
    border-radius: var(--radius-pill);
    background: var(--color-accent);
    color: var(--color-primary);
    font-size: 0.85rem;
    font-weight: 600;
  }

  .badge-flagship {
    background: var(--gradient-brand);
    color: white;
  }

  /* ---------- NAVBAR ---------- */
  .navbar {
    position: fixed;
    inset-block-start: 0;
    inset-inline: 0;
    z-index: 100;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: saturate(180%) blur(10px);
    transition: box-shadow var(--transition), background var(--transition);

    &.is-scrolled { box-shadow: var(--shadow-navbar); }

    & .navbar__inner {
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 1.5rem;
      padding-block: 1rem;
    }

    & .navbar__logo {
      display: flex;
      align-items: center;
      gap: 0.6rem;
      font-weight: 800;
      font-size: 1.15rem;
      color: var(--color-text);

      & img { height: 66px; width: auto; display: block; }
      & svg { width: 36px; height: 36px; }
    }

    & .navbar__links {
      display: none;
      gap: 2rem;

      & a {
        font-weight: 500;
        color: var(--color-text);
        position: relative;
        padding-block: 0.4rem;
        transition: color var(--transition);

        &::after {
          content: '';
          position: absolute;
          inset-inline: 0;
          inset-block-end: 0;
          height: 2px;
          background: var(--gradient-brand);
          transform: scaleX(0);
          transform-origin: left;
          transition: transform var(--transition);
        }

        &:hover, &.is-active { color: var(--color-primary); }
        &:hover::after, &.is-active::after { transform: scaleX(1); }
      }
    }

    & .navbar__actions {
      display: flex;
      align-items: center;
      gap: 1rem;
    }

    & .lang-switch {
      display: flex;
      align-items: center;
      gap: 0.25rem;
      font-size: 0.85rem;
      font-weight: 600;

      & button {
        padding: 0.25rem 0.55rem;
        border-radius: var(--radius-sm);
        color: var(--color-text-muted);
        transition: color var(--transition), background var(--transition);

        &.is-active { color: var(--color-primary); background: var(--color-accent); }
        &:hover { color: var(--color-primary); }
      }

      & .lang-sep { color: var(--color-border); }
    }

    & .navbar__cta { display: none; }

    & .navbar__burger {
      display: grid;
      place-items: center;
      width: 40px;
      height: 40px;
      border-radius: var(--radius-sm);
      color: var(--color-text);

      &:hover { background: var(--color-bg-alt); }
    }

  }

  #mobile-toggle { position: absolute; opacity: 0; pointer-events: none; }

  /* Mobile drawer — kept OUTSIDE the .navbar element on purpose: the navbar
     uses backdrop-filter, which makes it the containing block for any
     position:fixed descendants. A child drawer would be clipped to navbar
     bounds. Putting it as a sibling of <nav> restores viewport-relative
     positioning. */
  .navbar__drawer {
    position: fixed;
    inset: var(--navbar-h) 0 0 0;
    z-index: 90;
    background: var(--color-bg);
    padding: 2rem 1.5rem;
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
    overflow-y: auto;
    transform: translateX(100%);
    transition: transform var(--transition);
    box-shadow: -8px 0 24px rgba(15, 23, 42, 0.08);

    & a { font-size: 1.25rem; font-weight: 600; color: var(--color-text); }
    & .btn { align-self: flex-start; color: white; }
  }

  body:has(#mobile-toggle:checked) .navbar__drawer { transform: translateX(0); }
  body:has(#mobile-toggle:checked) { overflow: hidden; }

  @media (min-width: 1024px) {
    .navbar {
      & .navbar__links { display: flex; }
      & .navbar__cta { display: inline-flex; }
      & .navbar__burger { display: none; }
    }
    .navbar__drawer { display: none; }
  }

  /* compensate fixed navbar */
  main { padding-block-start: var(--navbar-h); }

  /* ---------- FOOTER ---------- */
  .footer {
    background: var(--color-footer);
    color: var(--color-footer-muted);
    padding-block: 4rem 2rem;

    & .footer__grid {
      display: grid;
      gap: 2.5rem;
      grid-template-columns: 1fr;
      margin-block-end: 3rem;
    }

    & .footer__brand {
      & .footer__logo {
        display: flex;
        align-items: center;
        gap: 0.6rem;
        color: white;
        font-weight: 800;
        font-size: 1.2rem;
        margin-block-end: 0.75rem;

        & img {
          height: 84px;
          width: auto;
          display: block;
          background: white;
          padding: 8px 14px;
          border-radius: 12px;
        }
        & svg { width: 36px; height: 36px; }
      }

      & p { max-width: 30ch; }
    }

    & h4 {
      color: white;
      font-size: 0.95rem;
      font-weight: 700;
      margin-block-end: 1rem;
      letter-spacing: 0.03em;
    }

    & ul { display: flex; flex-direction: column; gap: 0.6rem; }
    & a { transition: color var(--transition); }
    & a:hover { color: white; }

    & .footer__socials {
      display: flex;
      gap: 0.75rem;
      margin-block-start: 1rem;

      & a {
        width: 42px;
        height: 42px;
        border-radius: 50%;
        background: rgba(255, 255, 255, 0.12);
        color: #ffffff;
        display: grid;
        place-items: center;
        transition: background var(--transition), color var(--transition), transform var(--transition);

        & i, & svg {
          width: 20px;
          height: 20px;
          stroke: currentColor;
          color: inherit;
        }

        &:hover {
          background: var(--color-primary);
          color: #ffffff;
          transform: translateY(-2px);
        }
      }
    }

    & .footer__bottom {
      border-block-start: 1px solid rgba(255, 255, 255, 0.08);
      padding-block-start: 1.5rem;
      text-align: center;
      font-size: 0.85rem;
    }
  }

  @media (min-width: 768px) {
    .footer .footer__grid {
      grid-template-columns: 2fr 1fr 1fr 1.2fr;
    }
  }
}